TSTP Solution File: SEU165+2 by LEO-II---1.7.0

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : LEO-II---1.7.0
% Problem  : SEU165+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 12:07:28 EDT 2022

% Result   : Theorem 1.19s 1.61s
% Output   : CNFRefutation 3.23s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :   26
%            Number of leaves      :  135
% Syntax   : Number of formulae    : 2363 (1238 unt;  40 typ;   0 def)
%            Number of atoms       : 15582 (6187 equ;   0 cnn)
%            Maximal formula atoms :    6 (   6 avg)
%            Number of connectives : 33821 (6235   ~;5454   |; 270   &;21731   @)
%                                         (  71 <=>;  60  =>;   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     :   43 (  40 usr;   9 con; 0-4 aty)
%            Number of variables   : 7058 (   0   ^7044   !;  14   ?;7058   :)

% 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_C,type,
    sK10_C: $i > $i > $i ).

thf(tp_sK11_SY201,type,
    sK11_SY201: $i > $i > $i ).

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

thf(tp_sK13_C,type,
    sK13_C: $i > $i > $i ).

thf(tp_sK14_E,type,
    sK14_E: $i > $i > $i > $i > $i ).

thf(tp_sK15_SY202,type,
    sK15_SY202: $i > $i > $i > $i > $i ).

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

thf(tp_sK17_SY205,type,
    sK17_SY205: $i > $i > $i > $i ).

thf(tp_sK18_SY207,type,
    sK18_SY207: $i > $i > $i > $i ).

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

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

thf(tp_sK20_D,type,
    sK20_D: $i > $i > $i > $i ).

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

thf(tp_sK22_B,type,
    sK22_B: $i > $i ).

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

thf(tp_sK24_C,type,
    sK24_C: $i > $i > $i ).

thf(tp_sK25_C,type,
    sK25_C: $i > $i > $i ).

thf(tp_sK2_SY194,type,
    sK2_SY194: $i ).

thf(tp_sK3_SY197,type,
    sK3_SY197: $i ).

thf(tp_sK4_SY199,type,
    sK4_SY199: $i ).

thf(tp_sK5_C,type,
    sK5_C: $i > $i > $i ).

thf(tp_sK6_A,type,
    sK6_A: $i ).

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

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

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

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

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

thf(tp_set_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/sandbox/benchmark/theBenchmark.p',t8_boole) ).

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

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

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

thf(5,axiom,
    ! [A: $i] :
      ( ( set_difference @ A @ empty_set )
      = A ),
    file('/export/starexec/sandbox/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/sandbox/benchmark/theBenchmark.p',t2_tarski) ).

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

thf(31,axiom,
    ! [A: $i,B: $i] :
      ( ( disjoint @ A @ B )
    <=> ( ( set_intersection2 @ A @ B )
        = empty_set ) ),
    file('/export/starexec/sandbox/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/sandbox/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/sandbox/benchmark/theBenchmark.p',d4_xboole_0) ).

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

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

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

thf(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/sandbox/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/sandbox/benchmark/theBenchmark.p',d2_xboole_0) ).

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

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

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

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

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

thf(44,axiom,
    ! [A: $i,B: $i] :
      ( ( set_intersection2 @ A @ B )
      = ( set_intersection2 @ B @ A ) ),
    file('/export/starexec/sandbox/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/sandbox/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/sandbox/benchmark/theBenchmark.p',commutativity_k2_tarski) ).

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

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

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

thf(50,axiom,
    ! [A: $i] :
      ( ( union @ ( powerset @ A ) )
      = A ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t99_zfmisc_1) ).

thf(51,axiom,
    ! [A: $i,B: $i] :
      ( ( in @ A @ B )
     => ( subset @ A @ ( union @ B ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t92_zfmisc_1) ).

thf(52,axiom,
    ! [A: $i,B: $i,C: $i] :
      ( ( ( singleton @ A )
        = ( unordered_pair @ B @ C ) )
     => ( A = B ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t8_zfmisc_1) ).

thf(53,axiom,
    ! [A: $i,B: $i,C: $i] :
      ( ( ( subset @ A @ B )
        & ( subset @ C @ B ) )
     => ( subset @ ( set_union2 @ A @ C ) @ B ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t8_xboole_1) ).

thf(54,axiom,
    ! [A: $i,B: $i] :
      ( ( disjoint @ A @ B )
    <=> ( ( set_difference @ A @ B )
        = A ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t83_xboole_1) ).

thf(55,axiom,
    ! [A: $i,B: $i] : ( subset @ A @ ( set_union2 @ A @ B ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t7_xboole_1) ).

thf(56,axiom,
    ! [A: $i,B: $i] :
      ( ( subset @ ( singleton @ A ) @ ( singleton @ B ) )
     => ( A = B ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t6_zfmisc_1) ).

thf(57,axiom,
    ! [A: $i] :
      ( ( unordered_pair @ A @ A )
      = ( singleton @ A ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t69_enumset1) ).

thf(58,axiom,
    ! [A: $i,B: $i] :
      ( ( ( set_difference @ A @ ( singleton @ B ) )
        = A )
    <=> ~ ( in @ B @ A ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t65_zfmisc_1) ).

thf(59,axiom,
    ! [A: $i,B: $i,C: $i] :
      ( ( ( subset @ A @ B )
        & ( disjoint @ B @ C ) )
     => ( disjoint @ A @ C ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t63_xboole_1) ).

thf(60,axiom,
    ! [A: $i,B: $i] :
      ~ ( ( subset @ A @ B )
        & ( proper_subset @ B @ A ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t60_xboole_1) ).

thf(61,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/sandbox/benchmark/theBenchmark.p',t4_xboole_0) ).

thf(62,axiom,
    ! [A: $i,B: $i] :
      ( ( set_difference @ A @ ( set_difference @ A @ B ) )
      = ( set_intersection2 @ A @ B ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t48_xboole_1) ).

thf(63,axiom,
    ! [A: $i,B: $i] :
      ( ( in @ A @ B )
     => ( ( set_union2 @ ( singleton @ A ) @ B )
        = B ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t46_zfmisc_1) ).

thf(64,axiom,
    ! [A: $i,B: $i] :
      ( ( subset @ A @ B )
     => ( B
        = ( set_union2 @ A @ ( set_difference @ B @ A ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t45_xboole_1) ).

thf(65,axiom,
    ! [A: $i,B: $i] :
      ( ( set_difference @ ( set_union2 @ A @ B ) @ B )
      = ( set_difference @ A @ B ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t40_xboole_1) ).

thf(66,axiom,
    ! [A: $i] :
      ( ( subset @ A @ empty_set )
     => ( A = empty_set ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t3_xboole_1) ).

thf(67,axiom,
    ! [A: $i,B: $i] :
      ( ~ ( ~ ( disjoint @ A @ B )
          & ! [C: $i] :
              ~ ( ( in @ C @ A )
                & ( in @ C @ B ) ) )
      & ~ ( ? [C: $i] :
              ( ( in @ C @ A )
              & ( in @ C @ B ) )
          & ( disjoint @ A @ B ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t3_xboole_0) ).

thf(68,axiom,
    ! [A: $i,B: $i] :
      ( ( subset @ A @ ( singleton @ B ) )
    <=> ( ( A = empty_set )
        | ( A
          = ( singleton @ B ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t39_zfmisc_1) ).

thf(69,axiom,
    ! [A: $i,B: $i] :
      ( ( set_union2 @ A @ ( set_difference @ B @ A ) )
      = ( set_union2 @ A @ B ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t39_xboole_1) ).

thf(70,axiom,
    ! [A: $i,B: $i,C: $i] :
      ( ( subset @ ( unordered_pair @ A @ B ) @ C )
    <=> ( ( in @ A @ C )
        & ( in @ B @ C ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t38_zfmisc_1) ).

thf(71,axiom,
    ! [A: $i,B: $i] :
      ( ( subset @ ( singleton @ A ) @ B )
    <=> ( in @ A @ B ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t37_zfmisc_1) ).

thf(72,axiom,
    ! [A: $i,B: $i] :
      ( ( ( set_difference @ A @ B )
        = empty_set )
    <=> ( subset @ A @ B ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t37_xboole_1) ).

thf(73,axiom,
    ! [A: $i,B: $i] : ( subset @ ( set_difference @ A @ B ) @ A ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t36_xboole_1) ).

thf(74,axiom,
    ! [A: $i,B: $i,C: $i,D: $i] :
      ( ( ( ordered_pair @ A @ B )
        = ( ordered_pair @ C @ D ) )
     => ( ( A = C )
        & ( B = D ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t33_zfmisc_1) ).

thf(75,axiom,
    ! [A: $i,B: $i,C: $i] :
      ( ( subset @ A @ B )
     => ( subset @ ( set_difference @ A @ C ) @ ( set_difference @ B @ C ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t33_xboole_1) ).

thf(76,axiom,
    ! [A: $i] : ( subset @ empty_set @ A ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t2_xboole_1) ).

thf(77,axiom,
    ! [A: $i,B: $i] :
      ( ( subset @ A @ B )
     => ( ( set_intersection2 @ A @ B )
        = A ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t28_xboole_1) ).

thf(78,axiom,
    ! [A: $i,B: $i,C: $i] :
      ( ( subset @ A @ B )
     => ( subset @ ( set_intersection2 @ A @ C ) @ ( set_intersection2 @ B @ C ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t26_xboole_1) ).

thf(79,axiom,
    ( ( powerset @ empty_set )
    = ( singleton @ empty_set ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t1_zfmisc_1) ).

thf(80,axiom,
    ! [A: $i,B: $i,C: $i] :
      ( ( ( subset @ A @ B )
        & ( subset @ B @ C ) )
     => ( subset @ A @ C ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t1_xboole_1) ).

thf(81,axiom,
    ! [A: $i,B: $i,C: $i] :
      ( ( ( subset @ A @ B )
        & ( subset @ A @ C ) )
     => ( subset @ A @ ( set_intersection2 @ B @ C ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t19_xboole_1) ).

thf(82,axiom,
    ! [A: $i,B: $i] : ( subset @ ( set_intersection2 @ A @ B ) @ A ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t17_xboole_1) ).

thf(83,axiom,
    ! [A: $i,B: $i] :
      ( ( subset @ A @ B )
     => ( ( set_union2 @ A @ B )
        = B ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t12_xboole_1) ).

thf(84,axiom,
    ! [A: $i,B: $i,C: $i,D: $i] :
      ~ ( ( ( unordered_pair @ A @ B )
          = ( unordered_pair @ C @ D ) )
        & ( A != C )
        & ( A != D ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t10_zfmisc_1) ).

thf(85,axiom,
    ! [A: $i,B: $i,C: $i,D: $i] :
      ( ( in @ ( ordered_pair @ A @ B ) @ ( cartesian_product2 @ C @ D ) )
    <=> ( ( in @ A @ C )
        & ( in @ B @ D ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',l55_zfmisc_1) ).

thf(86,axiom,
    ! [A: $i,B: $i] :
      ( ( in @ A @ B )
     => ( subset @ A @ ( union @ B ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',l50_zfmisc_1) ).

thf(87,axiom,
    ! [A: $i,B: $i] :
      ( ( subset @ A @ ( singleton @ B ) )
    <=> ( ( A = empty_set )
        | ( A
          = ( singleton @ B ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',l4_zfmisc_1) ).

thf(88,axiom,
    ! [A: $i,B: $i,C: $i] :
      ( ( subset @ A @ B )
     => ( ( in @ C @ A )
        | ( subset @ A @ ( set_difference @ B @ ( singleton @ C ) ) ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',l3_zfmisc_1) ).

thf(89,axiom,
    ! [A: $i,B: $i] :
      ( ( ( set_difference @ A @ B )
        = empty_set )
    <=> ( subset @ A @ B ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',l32_xboole_1) ).

thf(90,axiom,
    ! [A: $i,B: $i] :
      ( ( subset @ ( singleton @ A ) @ B )
    <=> ( in @ A @ B ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',l2_zfmisc_1) ).

thf(91,axiom,
    ! [A: $i,B: $i] :
      ( ~ ( in @ A @ B )
     => ( disjoint @ ( singleton @ A ) @ B ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',l28_zfmisc_1) ).

thf(92,axiom,
    ! [A: $i,B: $i] :
      ~ ( ( disjoint @ ( singleton @ A ) @ B )
        & ( in @ A @ B ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',l25_zfmisc_1) ).

thf(93,axiom,
    ! [A: $i,B: $i] :
      ( ( in @ A @ B )
     => ( ( set_union2 @ ( singleton @ A ) @ B )
        = B ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',l23_zfmisc_1) ).

thf(94,axiom,
    ! [A: $i] :
      ( ( singleton @ A )
     != empty_set ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',l1_zfmisc_1) ).

thf(95,conjecture,
    ! [A: $i,B: $i,C: $i,D: $i] :
      ( ( in @ ( ordered_pair @ A @ B ) @ ( cartesian_product2 @ C @ D ) )
    <=> ( ( in @ A @ C )
        & ( in @ B @ D ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t106_zfmisc_1) ).

thf(96,negated_conjecture,
    ( ( ! [A: $i,B: $i,C: $i,D: $i] :
          ( ( in @ ( ordered_pair @ A @ B ) @ ( cartesian_product2 @ C @ D ) )
        <=> ( ( in @ A @ C )
            & ( in @ B @ D ) ) ) )
    = $false ),
    inference(negate_conjecture,[status(cth)],[95]) ).

thf(97,plain,
    ( ( ! [A: $i,B: $i,C: $i,D: $i] :
          ( ( in @ ( ordered_pair @ A @ B ) @ ( cartesian_product2 @ C @ D ) )
        <=> ( ( in @ A @ C )
            & ( in @ B @ D ) ) ) )
    = $false ),
    inference(unfold_def,[status(thm)],[96]) ).

thf(98,plain,
    ( ( ! [A: $i,B: $i] :
          ~ ( ( empty @ A )
            & ( A != B )
            & ( empty @ B ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[1]) ).

thf(99,plain,
    ( ( ! [A: $i,B: $i] :
          ~ ( ( in @ A @ B )
            & ( empty @ B ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[2]) ).

thf(100,plain,
    ( ( ! [A: $i] :
          ( ( empty @ A )
         => ( A = empty_set ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[3]) ).

thf(101,plain,
    ( ( ! [A: $i] :
          ( ( set_difference @ empty_set @ A )
          = empty_set ) )
    = $true ),
    inference(unfold_def,[status(thm)],[4]) ).

thf(102,plain,
    ( ( ! [A: $i] :
          ( ( set_difference @ A @ empty_set )
          = A ) )
    = $true ),
    inference(unfold_def,[status(thm)],[5]) ).

thf(103,plain,
    ( ( ! [A: $i,B: $i] :
          ( ! [C: $i] :
              ( ( in @ C @ A )
            <=> ( in @ C @ B ) )
         => ( A = B ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[6]) ).

thf(104,plain,
    ( ( ! [A: $i] :
          ( ( set_intersection2 @ A @ empty_set )
          = empty_set ) )
    = $true ),
    inference(unfold_def,[status(thm)],[7]) ).

thf(105,plain,
    ( ( ! [A: $i] :
          ( ( set_union2 @ A @ empty_set )
          = A ) )
    = $true ),
    inference(unfold_def,[status(thm)],[8]) ).

thf(106,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( disjoint @ A @ B )
         => ( disjoint @ B @ A ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[9]) ).

thf(107,plain,
    ( ( ! [A: $i,B: $i] : ( subset @ A @ A ) )
    = $true ),
    inference(unfold_def,[status(thm)],[10]) ).

thf(108,plain,
    ( ( ? [A: $i] :
          ~ ( empty @ A ) )
    = $true ),
    inference(unfold_def,[status(thm)],[11]) ).

thf(109,plain,
    ( ( ? [A: $i] : ( empty @ A ) )
    = $true ),
    inference(unfold_def,[status(thm)],[12]) ).

thf(110,plain,
    ( ( ! [A: $i,B: $i] :
          ~ ( proper_subset @ A @ A ) )
    = $true ),
    inference(unfold_def,[status(thm)],[13]) ).

thf(111,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( set_intersection2 @ A @ A )
          = A ) )
    = $true ),
    inference(unfold_def,[status(thm)],[14]) ).

thf(112,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( set_union2 @ A @ A )
          = A ) )
    = $true ),
    inference(unfold_def,[status(thm)],[15]) ).

thf(113,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( empty @ A )
         => ~ ( empty @ ( set_union2 @ B @ A ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[16]) ).

thf(114,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( empty @ A )
         => ~ ( empty @ ( set_union2 @ A @ B ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[17]) ).

thf(115,plain,
    ( ( ! [A: $i,B: $i] :
          ~ ( empty @ ( ordered_pair @ A @ B ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[18]) ).

thf(116,plain,
    ( ( empty @ empty_set )
    = $true ),
    inference(unfold_def,[status(thm)],[19]) ).

thf(117,plain,
    $true = $true,
    inference(unfold_def,[status(thm)],[20]) ).

thf(118,plain,
    $true = $true,
    inference(unfold_def,[status(thm)],[21]) ).

thf(119,plain,
    $true = $true,
    inference(unfold_def,[status(thm)],[22]) ).

thf(120,plain,
    $true = $true,
    inference(unfold_def,[status(thm)],[23]) ).

thf(121,plain,
    $true = $true,
    inference(unfold_def,[status(thm)],[24]) ).

thf(122,plain,
    $true = $true,
    inference(unfold_def,[status(thm)],[25]) ).

thf(123,plain,
    $true = $true,
    inference(unfold_def,[status(thm)],[26]) ).

thf(124,plain,
    $true = $true,
    inference(unfold_def,[status(thm)],[27]) ).

thf(125,plain,
    $true = $true,
    inference(unfold_def,[status(thm)],[28]) ).

thf(126,plain,
    $true = $true,
    inference(unfold_def,[status(thm)],[29]) ).

thf(127,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( proper_subset @ A @ B )
        <=> ( ( subset @ A @ B )
            & ( A != B ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[30]) ).

thf(128,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( disjoint @ A @ B )
        <=> ( ( set_intersection2 @ A @ B )
            = empty_set ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[31]) ).

thf(129,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(130,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(131,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(132,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(133,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( subset @ A @ B )
        <=> ! [C: $i] :
              ( ( in @ C @ A )
             => ( in @ C @ B ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[36]) ).

thf(134,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(135,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(136,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(137,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( B
            = ( powerset @ A ) )
        <=> ! [C: $i] :
              ( ( in @ C @ B )
            <=> ( subset @ C @ A ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[40]) ).

thf(138,plain,
    ( ( ! [A: $i] :
          ( ( A = empty_set )
        <=> ! [B: $i] :
              ~ ( in @ B @ A ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[41]) ).

thf(139,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( B
            = ( singleton @ A ) )
        <=> ! [C: $i] :
              ( ( in @ C @ B )
            <=> ( C = A ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[42]) ).

thf(140,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( A = B )
        <=> ( ( subset @ A @ B )
            & ( subset @ B @ A ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[43]) ).

thf(141,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( set_intersection2 @ A @ B )
          = ( set_intersection2 @ B @ A ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[44]) ).

thf(142,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( set_union2 @ A @ B )
          = ( set_union2 @ B @ A ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[45]) ).

thf(143,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( unordered_pair @ A @ B )
          = ( unordered_pair @ B @ A ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[46]) ).

thf(144,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( proper_subset @ A @ B )
         => ~ ( proper_subset @ B @ A ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[47]) ).

thf(145,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( in @ A @ B )
         => ~ ( in @ B @ A ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[48]) ).

thf(146,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ( ( singleton @ A )
            = ( unordered_pair @ B @ C ) )
         => ( B = C ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[49]) ).

thf(147,plain,
    ( ( ! [A: $i] :
          ( ( union @ ( powerset @ A ) )
          = A ) )
    = $true ),
    inference(unfold_def,[status(thm)],[50]) ).

thf(148,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( in @ A @ B )
         => ( subset @ A @ ( union @ B ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[51]) ).

thf(149,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ( ( singleton @ A )
            = ( unordered_pair @ B @ C ) )
         => ( A = B ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[52]) ).

thf(150,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)],[53]) ).

thf(151,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( disjoint @ A @ B )
        <=> ( ( set_difference @ A @ B )
            = A ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[54]) ).

thf(152,plain,
    ( ( ! [A: $i,B: $i] : ( subset @ A @ ( set_union2 @ A @ B ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[55]) ).

thf(153,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( subset @ ( singleton @ A ) @ ( singleton @ B ) )
         => ( A = B ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[56]) ).

thf(154,plain,
    ( ( ! [A: $i] :
          ( ( unordered_pair @ A @ A )
          = ( singleton @ A ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[57]) ).

thf(155,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( ( set_difference @ A @ ( singleton @ B ) )
            = A )
        <=> ~ ( in @ B @ A ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[58]) ).

thf(156,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ( ( subset @ A @ B )
            & ( disjoint @ B @ C ) )
         => ( disjoint @ A @ C ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[59]) ).

thf(157,plain,
    ( ( ! [A: $i,B: $i] :
          ~ ( ( subset @ A @ B )
            & ( proper_subset @ B @ A ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[60]) ).

thf(158,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)],[61]) ).

thf(159,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( set_difference @ A @ ( set_difference @ A @ B ) )
          = ( set_intersection2 @ A @ B ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[62]) ).

thf(160,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( in @ A @ B )
         => ( ( set_union2 @ ( singleton @ A ) @ B )
            = B ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[63]) ).

thf(161,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( subset @ A @ B )
         => ( B
            = ( set_union2 @ A @ ( set_difference @ B @ A ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[64]) ).

thf(162,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( set_difference @ ( set_union2 @ A @ B ) @ B )
          = ( set_difference @ A @ B ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[65]) ).

thf(163,plain,
    ( ( ! [A: $i] :
          ( ( subset @ A @ empty_set )
         => ( A = empty_set ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[66]) ).

thf(164,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)],[67]) ).

thf(165,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( subset @ A @ ( singleton @ B ) )
        <=> ( ( A = empty_set )
            | ( A
              = ( singleton @ B ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[68]) ).

thf(166,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( set_union2 @ A @ ( set_difference @ B @ A ) )
          = ( set_union2 @ A @ B ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[69]) ).

thf(167,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)],[70]) ).

thf(168,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( subset @ ( singleton @ A ) @ B )
        <=> ( in @ A @ B ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[71]) ).

thf(169,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( ( set_difference @ A @ B )
            = empty_set )
        <=> ( subset @ A @ B ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[72]) ).

thf(170,plain,
    ( ( ! [A: $i,B: $i] : ( subset @ ( set_difference @ A @ B ) @ A ) )
    = $true ),
    inference(unfold_def,[status(thm)],[73]) ).

thf(171,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)],[74]) ).

thf(172,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)],[75]) ).

thf(173,plain,
    ( ( ! [A: $i] : ( subset @ empty_set @ A ) )
    = $true ),
    inference(unfold_def,[status(thm)],[76]) ).

thf(174,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( subset @ A @ B )
         => ( ( set_intersection2 @ A @ B )
            = A ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[77]) ).

thf(175,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)],[78]) ).

thf(176,plain,
    ( ( ( powerset @ empty_set )
      = ( singleton @ empty_set ) )
    = $true ),
    inference(unfold_def,[status(thm)],[79]) ).

thf(177,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ( ( subset @ A @ B )
            & ( subset @ B @ C ) )
         => ( subset @ A @ C ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[80]) ).

thf(178,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)],[81]) ).

thf(179,plain,
    ( ( ! [A: $i,B: $i] : ( subset @ ( set_intersection2 @ A @ B ) @ A ) )
    = $true ),
    inference(unfold_def,[status(thm)],[82]) ).

thf(180,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( subset @ A @ B )
         => ( ( set_union2 @ A @ B )
            = B ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[83]) ).

thf(181,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)],[84]) ).

thf(182,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)],[85]) ).

thf(183,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( in @ A @ B )
         => ( subset @ A @ ( union @ B ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[86]) ).

thf(184,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( subset @ A @ ( singleton @ B ) )
        <=> ( ( A = empty_set )
            | ( A
              = ( singleton @ B ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[87]) ).

thf(185,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)],[88]) ).

thf(186,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( ( set_difference @ A @ B )
            = empty_set )
        <=> ( subset @ A @ B ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[89]) ).

thf(187,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( subset @ ( singleton @ A ) @ B )
        <=> ( in @ A @ B ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[90]) ).

thf(188,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( in @ A @ B )
         => ( disjoint @ ( singleton @ A ) @ B ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[91]) ).

thf(189,plain,
    ( ( ! [A: $i,B: $i] :
          ~ ( ( disjoint @ ( singleton @ A ) @ B )
            & ( in @ A @ B ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[92]) ).

thf(190,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( in @ A @ B )
         => ( ( set_union2 @ ( singleton @ A ) @ B )
            = B ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[93]) ).

thf(191,plain,
    ( ( ! [A: $i] :
          ( ( singleton @ A )
         != empty_set ) )
    = $true ),
    inference(unfold_def,[status(thm)],[94]) ).

thf(192,plain,
    ( ( ! [SY194: $i,SY195: $i,SY196: $i] :
          ( ( in @ ( ordered_pair @ sK1_A @ SY194 ) @ ( cartesian_product2 @ SY195 @ SY196 ) )
        <=> ( ( in @ sK1_A @ SY195 )
            & ( in @ SY194 @ SY196 ) ) ) )
    = $false ),
    inference(extcnf_forall_neg,[status(esa)],[97]) ).

thf(193,plain,
    ( ( ! [SY197: $i,SY198: $i] :
          ( ( in @ ( ordered_pair @ sK1_A @ sK2_SY194 ) @ ( cartesian_product2 @ SY197 @ SY198 ) )
        <=> ( ( in @ sK1_A @ SY197 )
            & ( in @ sK2_SY194 @ SY198 ) ) ) )
    = $false ),
    inference(extcnf_forall_neg,[status(esa)],[192]) ).

thf(194,plain,
    ( ( ! [SY199: $i] :
          ( ( in @ ( ordered_pair @ sK1_A @ sK2_SY194 ) @ ( cartesian_product2 @ sK3_SY197 @ SY199 ) )
        <=> ( ( in @ sK1_A @ sK3_SY197 )
            & ( in @ sK2_SY194 @ SY199 ) ) ) )
    = $false ),
    inference(extcnf_forall_neg,[status(esa)],[193]) ).

thf(195,plain,
    ( ( ( in @ ( ordered_pair @ sK1_A @ sK2_SY194 ) @ ( cartesian_product2 @ sK3_SY197 @ sK4_SY199 ) )
    <=> ( ( in @ sK1_A @ sK3_SY197 )
        & ( in @ sK2_SY194 @ sK4_SY199 ) ) )
    = $false ),
    inference(extcnf_forall_neg,[status(esa)],[194]) ).

thf(196,plain,
    ( ( ( in @ ( ordered_pair @ sK1_A @ sK2_SY194 ) @ ( cartesian_product2 @ sK3_SY197 @ sK4_SY199 ) )
     => ( ( in @ sK1_A @ sK3_SY197 )
        & ( in @ sK2_SY194 @ sK4_SY199 ) ) )
    = $false ),
    inference(split_conjecture,[split_conjecture(split,[])],[195]) ).

thf(197,plain,
    ( ( ( ( in @ sK1_A @ sK3_SY197 )
        & ( in @ sK2_SY194 @ sK4_SY199 ) )
     => ( in @ ( ordered_pair @ sK1_A @ sK2_SY194 ) @ ( cartesian_product2 @ sK3_SY197 @ sK4_SY199 ) ) )
    = $false ),
    inference(split_conjecture,[split_conjecture(split,[])],[195]) ).

thf(198,plain,
    ( ( ~ ( ( in @ ( ordered_pair @ sK1_A @ sK2_SY194 ) @ ( cartesian_product2 @ sK3_SY197 @ sK4_SY199 ) )
         => ( ( in @ sK1_A @ sK3_SY197 )
            & ( in @ sK2_SY194 @ sK4_SY199 ) ) ) )
    = $true ),
    inference(polarity_switch,[status(thm)],[196]) ).

thf(199,plain,
    ( ( ~ ( ( ( in @ sK1_A @ sK3_SY197 )
            & ( in @ sK2_SY194 @ sK4_SY199 ) )
         => ( in @ ( ordered_pair @ sK1_A @ sK2_SY194 ) @ ( cartesian_product2 @ sK3_SY197 @ sK4_SY199 ) ) ) )
    = $true ),
    inference(polarity_switch,[status(thm)],[197]) ).

thf(200,plain,
    ( ( ( in @ ( ordered_pair @ sK1_A @ sK2_SY194 ) @ ( cartesian_product2 @ sK3_SY197 @ sK4_SY199 ) )
      & ( ~ ( in @ sK1_A @ sK3_SY197 )
        | ~ ( in @ sK2_SY194 @ sK4_SY199 ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[198]) ).

thf(201,plain,
    ( ( ( in @ sK1_A @ sK3_SY197 )
      & ( in @ sK2_SY194 @ sK4_SY199 )
      & ~ ( in @ ( ordered_pair @ sK1_A @ sK2_SY194 ) @ ( cartesian_product2 @ sK3_SY197 @ sK4_SY199 ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[199]) ).

thf(202,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( A = B )
          | ~ ( empty @ A )
          | ~ ( empty @ B ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[98]) ).

thf(203,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( empty @ B )
          | ~ ( in @ A @ B ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[99]) ).

thf(204,plain,
    ( ( ! [A: $i] :
          ( ~ ( empty @ A )
          | ( A = empty_set ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[100]) ).

thf(205,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( ( ~ ( in @ ( sK5_C @ B @ A ) @ A )
              | ~ ( in @ ( sK5_C @ B @ A ) @ B ) )
            & ( ( in @ ( sK5_C @ B @ A ) @ A )
              | ( in @ ( sK5_C @ B @ A ) @ B ) ) )
          | ( A = B ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[103]) ).

thf(206,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( disjoint @ A @ B )
          | ( disjoint @ B @ A ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[106]) ).

thf(207,plain,
    ( ( ! [A: $i] : ( subset @ A @ A ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[107]) ).

thf(208,plain,
    ( ( ~ ( empty @ sK6_A ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[108]) ).

thf(209,plain,
    ( ( empty @ sK7_A )
    = $true ),
    inference(extcnf_combined,[status(esa)],[109]) ).

thf(210,plain,
    ( ( ! [A: $i] :
          ~ ( proper_subset @ A @ A ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[110]) ).

thf(211,plain,
    ( ( ! [A: $i] :
          ( ( set_intersection2 @ A @ A )
          = A ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[111]) ).

thf(212,plain,
    ( ( ! [A: $i] :
          ( ( set_union2 @ A @ A )
          = A ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[112]) ).

thf(213,plain,
    ( ( ! [A: $i] :
          ( ( empty @ A )
          | ! [B: $i] :
              ~ ( empty @ ( set_union2 @ B @ A ) ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[113]) ).

thf(214,plain,
    ( ( ! [A: $i] :
          ( ( empty @ A )
          | ! [B: $i] :
              ~ ( empty @ ( set_union2 @ A @ B ) ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[114]) ).

thf(215,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)],[127]) ).

thf(216,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)],[128]) ).

thf(217,plain,
    ( ( ! [A: $i] :
          ( ! [B: $i,C: $i] :
              ( ( ( ~ ( in @ ( sK8_D @ C @ B @ A ) @ A )
                  | ( in @ ( sK8_D @ C @ B @ A ) @ B )
                  | ~ ( in @ ( sK8_D @ C @ B @ A ) @ C ) )
                & ( ( in @ ( sK8_D @ C @ B @ A ) @ A )
                  | ( in @ ( sK8_D @ C @ B @ A ) @ C ) )
                & ( ~ ( in @ ( sK8_D @ C @ B @ A ) @ B )
                  | ( in @ ( sK8_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)],[130]) ).

thf(218,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( ( ! [SY200: $i] :
                  ( ~ ( in @ ( sK10_C @ B @ A ) @ SY200 )
                  | ~ ( in @ SY200 @ A ) )
              | ~ ( in @ ( sK10_C @ B @ A ) @ B ) )
            & ( ( ( in @ ( sK10_C @ B @ A ) @ ( sK11_SY201 @ B @ A ) )
                & ( in @ ( sK11_SY201 @ B @ A ) @ A ) )
              | ( in @ ( sK10_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 @ ( sK9_D @ C @ B @ A ) )
                  & ( in @ ( sK9_D @ C @ B @ A ) @ A ) ) ) ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[131]) ).

thf(219,plain,
    ( ( ! [A: $i] :
          ( ! [B: $i,C: $i] :
              ( ( ( ~ ( in @ ( sK12_D @ C @ B @ A ) @ A )
                  | ~ ( in @ ( sK12_D @ C @ B @ A ) @ B )
                  | ~ ( in @ ( sK12_D @ C @ B @ A ) @ C ) )
                & ( ( in @ ( sK12_D @ C @ B @ A ) @ A )
                  | ( in @ ( sK12_D @ C @ B @ A ) @ C ) )
                & ( ( in @ ( sK12_D @ C @ B @ A ) @ B )
                  | ( in @ ( sK12_D @ C @ B @ A ) @ C ) ) )
              | ( C
                = ( set_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)],[132]) ).

thf(220,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( ( in @ ( sK13_C @ B @ A ) @ A )
            & ~ ( in @ ( sK13_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)],[133]) ).

thf(221,plain,
    ( ( ! [A: $i] :
          ( ! [B: $i,C: $i] :
              ( ( ( ! [SY203: $i,SY204: $i] :
                      ( ~ ( in @ SY203 @ A )
                      | ~ ( in @ SY204 @ B )
                      | ( ( sK16_D @ C @ B @ A )
                       != ( ordered_pair @ SY203 @ SY204 ) ) )
                  | ~ ( in @ ( sK16_D @ C @ B @ A ) @ C ) )
                & ( ( ( in @ ( sK17_SY205 @ C @ B @ A ) @ A )
                    & ( in @ ( sK18_SY207 @ C @ B @ A ) @ B )
                    & ( ( sK16_D @ C @ B @ A )
                      = ( ordered_pair @ ( sK17_SY205 @ C @ B @ A ) @ ( sK18_SY207 @ C @ B @ A ) ) ) )
                  | ( in @ ( sK16_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 @ ( sK14_E @ D @ C @ B @ A ) @ A )
                      & ( in @ ( sK15_SY202 @ D @ C @ B @ A ) @ B )
                      & ( D
                        = ( ordered_pair @ ( sK14_E @ D @ C @ B @ A ) @ ( sK15_SY202 @ D @ C @ B @ A ) ) ) ) ) ) ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[134]) ).

thf(222,plain,
    ( ( ! [A: $i] :
          ( ! [B: $i,C: $i] :
              ( ( ( ~ ( in @ ( sK19_D @ C @ B @ A ) @ C )
                  | ~ ( in @ ( sK19_D @ C @ B @ A ) @ A ) )
                & ( ~ ( in @ ( sK19_D @ C @ B @ A ) @ C )
                  | ~ ( in @ ( sK19_D @ C @ B @ A ) @ B ) )
                & ( ( in @ ( sK19_D @ C @ B @ A ) @ C )
                  | ( in @ ( sK19_D @ C @ B @ A ) @ A )
                  | ( in @ ( sK19_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)],[135]) ).

thf(223,plain,
    ( ( ! [A: $i] :
          ( ! [B: $i,C: $i] :
              ( ( ( ~ ( in @ ( sK20_D @ C @ B @ A ) @ C )
                  | ( ( sK20_D @ C @ B @ A )
                   != A ) )
                & ( ~ ( in @ ( sK20_D @ C @ B @ A ) @ C )
                  | ( ( sK20_D @ C @ B @ A )
                   != B ) )
                & ( ( in @ ( sK20_D @ C @ B @ A ) @ C )
                  | ( ( sK20_D @ C @ B @ A )
                    = A )
                  | ( ( sK20_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)],[136]) ).

thf(224,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( ( ~ ( in @ ( sK21_C @ B @ A ) @ B )
              | ~ ( subset @ ( sK21_C @ B @ A ) @ A ) )
            & ( ( in @ ( sK21_C @ B @ A ) @ B )
              | ( subset @ ( sK21_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)],[137]) ).

thf(225,plain,
    ( ( ! [A: $i] :
          ( ( in @ ( sK22_B @ A ) @ A )
          | ( A = empty_set ) )
      & ! [A: $i] :
          ( ( A != empty_set )
          | ! [B: $i] :
              ~ ( in @ B @ A ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[138]) ).

thf(226,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( ( ( ( sK23_C @ B @ A )
               != A )
              | ~ ( in @ ( sK23_C @ B @ A ) @ B ) )
            & ( ( ( sK23_C @ B @ A )
                = A )
              | ( in @ ( sK23_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)],[139]) ).

thf(227,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)],[140]) ).

thf(228,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( proper_subset @ A @ B )
          | ~ ( proper_subset @ B @ A ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[144]) ).

thf(229,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( in @ A @ B )
          | ~ ( in @ B @ A ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[145]) ).

thf(230,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ( ( singleton @ A )
           != ( unordered_pair @ B @ C ) )
          | ( B = C ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[146]) ).

thf(231,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( in @ A @ B )
          | ( subset @ A @ ( union @ B ) ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[148]) ).

thf(232,plain,
    ( ( ! [A: $i,B: $i] :
          ( ! [C: $i] :
              ( ( singleton @ A )
             != ( unordered_pair @ B @ C ) )
          | ( A = B ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[149]) ).

thf(233,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)],[150]) ).

thf(234,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)],[151]) ).

thf(235,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( subset @ ( singleton @ A ) @ ( singleton @ B ) )
          | ( A = B ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[153]) ).

thf(236,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( ( set_difference @ A @ ( singleton @ B ) )
           != A )
          | ~ ( in @ B @ A ) )
      & ! [A: $i,B: $i] :
          ( ( in @ B @ A )
          | ( ( set_difference @ A @ ( singleton @ B ) )
            = A ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[155]) ).

thf(237,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ~ ( disjoint @ B @ C )
          | ~ ( subset @ A @ B )
          | ( disjoint @ A @ C ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[156]) ).

thf(238,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( proper_subset @ B @ A )
          | ~ ( subset @ A @ B ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[157]) ).

thf(239,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( disjoint @ A @ B )
          | ( in @ ( sK24_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)],[158]) ).

thf(240,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( in @ A @ B )
          | ( ( set_union2 @ ( singleton @ A ) @ B )
            = B ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[160]) ).

thf(241,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( subset @ A @ B )
          | ( B
            = ( set_union2 @ A @ ( set_difference @ B @ A ) ) ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[161]) ).

thf(242,plain,
    ( ( ! [A: $i] :
          ( ~ ( subset @ A @ empty_set )
          | ( A = empty_set ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[163]) ).

thf(243,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( disjoint @ A @ B )
          | ( ( in @ ( sK25_C @ B @ A ) @ A )
            & ( in @ ( sK25_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)],[164]) ).

thf(244,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)],[165]) ).

thf(245,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)],[167]) ).

thf(246,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)],[168]) ).

thf(247,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)],[169]) ).

thf(248,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)],[171]) ).

thf(249,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)],[172]) ).

thf(250,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( subset @ A @ B )
          | ( ( set_intersection2 @ A @ B )
            = A ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[174]) ).

thf(251,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)],[175]) ).

thf(252,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ~ ( subset @ A @ B )
          | ~ ( subset @ B @ C )
          | ( subset @ A @ C ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[177]) ).

thf(253,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)],[178]) ).

thf(254,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( subset @ A @ B )
          | ( ( set_union2 @ A @ B )
            = B ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[180]) ).

thf(255,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)],[181]) ).

thf(256,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)],[182]) ).

thf(257,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( in @ A @ B )
          | ( subset @ A @ ( union @ B ) ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[183]) ).

thf(258,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)],[184]) ).

thf(259,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)],[185]) ).

thf(260,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)],[186]) ).

thf(261,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)],[187]) ).

thf(262,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( in @ A @ B )
          | ( disjoint @ ( singleton @ A ) @ B ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[188]) ).

thf(263,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( disjoint @ ( singleton @ A ) @ B )
          | ~ ( in @ A @ B ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[189]) ).

thf(264,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( in @ A @ B )
          | ( ( set_union2 @ ( singleton @ A ) @ B )
            = B ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[190]) ).

thf(265,plain,
    ( ( ! [A: $i] :
          ( ( singleton @ A )
         != empty_set ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[191]) ).

thf(266,plain,
    ( ( ! [A: $i] :
          ( ( singleton @ A )
         != empty_set ) )
    = $true ),
    inference(copy,[status(thm)],[265]) ).

thf(267,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( in @ A @ B )
          | ( ( set_union2 @ ( singleton @ A ) @ B )
            = B ) ) )
    = $true ),
    inference(copy,[status(thm)],[264]) ).

thf(268,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( disjoint @ ( singleton @ A ) @ B )
          | ~ ( in @ A @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[263]) ).

thf(269,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( in @ A @ B )
          | ( disjoint @ ( singleton @ A ) @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[262]) ).

thf(270,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( in @ A @ B )
          | ( subset @ ( singleton @ A ) @ B ) )
      & ! [A: $i,B: $i] :
          ( ~ ( subset @ ( singleton @ A ) @ B )
          | ( in @ A @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[261]) ).

thf(271,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)],[260]) ).

thf(272,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( subset @ A @ B )
          | ! [C: $i] :
              ( ( in @ C @ A )
              | ( subset @ A @ ( set_difference @ B @ ( singleton @ C ) ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[259]) ).

thf(273,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)],[258]) ).

thf(274,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( in @ A @ B )
          | ( subset @ A @ ( union @ B ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[257]) ).

thf(275,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)],[256]) ).

thf(276,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)],[255]) ).

thf(277,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( subset @ A @ B )
          | ( ( set_union2 @ A @ B )
            = B ) ) )
    = $true ),
    inference(copy,[status(thm)],[254]) ).

thf(278,plain,
    ( ( ! [A: $i,B: $i] : ( subset @ ( set_intersection2 @ A @ B ) @ A ) )
    = $true ),
    inference(copy,[status(thm)],[179]) ).

thf(279,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ~ ( subset @ A @ B )
          | ~ ( subset @ A @ C )
          | ( subset @ A @ ( set_intersection2 @ B @ C ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[253]) ).

thf(280,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ~ ( subset @ A @ B )
          | ~ ( subset @ B @ C )
          | ( subset @ A @ C ) ) )
    = $true ),
    inference(copy,[status(thm)],[252]) ).

thf(281,plain,
    ( ( ( powerset @ empty_set )
      = ( singleton @ empty_set ) )
    = $true ),
    inference(copy,[status(thm)],[176]) ).

thf(282,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( subset @ A @ B )
          | ! [C: $i] : ( subset @ ( set_intersection2 @ A @ C ) @ ( set_intersection2 @ B @ C ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[251]) ).

thf(283,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( subset @ A @ B )
          | ( ( set_intersection2 @ A @ B )
            = A ) ) )
    = $true ),
    inference(copy,[status(thm)],[250]) ).

thf(284,plain,
    ( ( ! [A: $i] : ( subset @ empty_set @ A ) )
    = $true ),
    inference(copy,[status(thm)],[173]) ).

thf(285,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( subset @ A @ B )
          | ! [C: $i] : ( subset @ ( set_difference @ A @ C ) @ ( set_difference @ B @ C ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[249]) ).

thf(286,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)],[248]) ).

thf(287,plain,
    ( ( ! [A: $i,B: $i] : ( subset @ ( set_difference @ A @ B ) @ A ) )
    = $true ),
    inference(copy,[status(thm)],[170]) ).

thf(288,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)],[247]) ).

thf(289,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)],[246]) ).

thf(290,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)],[245]) ).

thf(291,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( set_union2 @ A @ ( set_difference @ B @ A ) )
          = ( set_union2 @ A @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[166]) ).

thf(292,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)],[244]) ).

thf(293,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( disjoint @ A @ B )
          | ( ( in @ ( sK25_C @ B @ A ) @ A )
            & ( in @ ( sK25_C @ B @ A ) @ B ) ) )
      & ! [A: $i,B: $i] :
          ( ! [C: $i] :
              ( ~ ( in @ C @ A )
              | ~ ( in @ C @ B ) )
          | ~ ( disjoint @ A @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[243]) ).

thf(294,plain,
    ( ( ! [A: $i] :
          ( ~ ( subset @ A @ empty_set )
          | ( A = empty_set ) ) )
    = $true ),
    inference(copy,[status(thm)],[242]) ).

thf(295,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( set_difference @ ( set_union2 @ A @ B ) @ B )
          = ( set_difference @ A @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[162]) ).

thf(296,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( subset @ A @ B )
          | ( B
            = ( set_union2 @ A @ ( set_difference @ B @ A ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[241]) ).

thf(297,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( in @ A @ B )
          | ( ( set_union2 @ ( singleton @ A ) @ B )
            = B ) ) )
    = $true ),
    inference(copy,[status(thm)],[240]) ).

thf(298,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( set_difference @ A @ ( set_difference @ A @ B ) )
          = ( set_intersection2 @ A @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[159]) ).

thf(299,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( disjoint @ A @ B )
          | ( in @ ( sK24_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)],[239]) ).

thf(300,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( proper_subset @ B @ A )
          | ~ ( subset @ A @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[238]) ).

thf(301,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ~ ( disjoint @ B @ C )
          | ~ ( subset @ A @ B )
          | ( disjoint @ A @ C ) ) )
    = $true ),
    inference(copy,[status(thm)],[237]) ).

thf(302,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( ( set_difference @ A @ ( singleton @ B ) )
           != A )
          | ~ ( in @ B @ A ) )
      & ! [A: $i,B: $i] :
          ( ( in @ B @ A )
          | ( ( set_difference @ A @ ( singleton @ B ) )
            = A ) ) )
    = $true ),
    inference(copy,[status(thm)],[236]) ).

thf(303,plain,
    ( ( ! [A: $i] :
          ( ( unordered_pair @ A @ A )
          = ( singleton @ A ) ) )
    = $true ),
    inference(copy,[status(thm)],[154]) ).

thf(304,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( subset @ ( singleton @ A ) @ ( singleton @ B ) )
          | ( A = B ) ) )
    = $true ),
    inference(copy,[status(thm)],[235]) ).

thf(305,plain,
    ( ( ! [A: $i,B: $i] : ( subset @ A @ ( set_union2 @ A @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[152]) ).

thf(306,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)],[234]) ).

thf(307,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ~ ( subset @ A @ B )
          | ~ ( subset @ C @ B )
          | ( subset @ ( set_union2 @ A @ C ) @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[233]) ).

thf(308,plain,
    ( ( ! [A: $i,B: $i] :
          ( ! [C: $i] :
              ( ( singleton @ A )
             != ( unordered_pair @ B @ C ) )
          | ( A = B ) ) )
    = $true ),
    inference(copy,[status(thm)],[232]) ).

thf(309,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( in @ A @ B )
          | ( subset @ A @ ( union @ B ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[231]) ).

thf(310,plain,
    ( ( ! [A: $i] :
          ( ( union @ ( powerset @ A ) )
          = A ) )
    = $true ),
    inference(copy,[status(thm)],[147]) ).

thf(311,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ( ( singleton @ A )
           != ( unordered_pair @ B @ C ) )
          | ( B = C ) ) )
    = $true ),
    inference(copy,[status(thm)],[230]) ).

thf(312,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( in @ A @ B )
          | ~ ( in @ B @ A ) ) )
    = $true ),
    inference(copy,[status(thm)],[229]) ).

thf(313,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( proper_subset @ A @ B )
          | ~ ( proper_subset @ B @ A ) ) )
    = $true ),
    inference(copy,[status(thm)],[228]) ).

thf(314,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( unordered_pair @ A @ B )
          = ( unordered_pair @ B @ A ) ) )
    = $true ),
    inference(copy,[status(thm)],[143]) ).

thf(315,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( set_union2 @ A @ B )
          = ( set_union2 @ B @ A ) ) )
    = $true ),
    inference(copy,[status(thm)],[142]) ).

thf(316,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( set_intersection2 @ A @ B )
          = ( set_intersection2 @ B @ A ) ) )
    = $true ),
    inference(copy,[status(thm)],[141]) ).

thf(317,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)],[227]) ).

thf(318,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( ( ( ( sK23_C @ B @ A )
               != A )
              | ~ ( in @ ( sK23_C @ B @ A ) @ B ) )
            & ( ( ( sK23_C @ B @ A )
                = A )
              | ( in @ ( sK23_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)],[226]) ).

thf(319,plain,
    ( ( ! [A: $i] :
          ( ( in @ ( sK22_B @ A ) @ A )
          | ( A = empty_set ) )
      & ! [A: $i] :
          ( ( A != empty_set )
          | ! [B: $i] :
              ~ ( in @ B @ A ) ) )
    = $true ),
    inference(copy,[status(thm)],[225]) ).

thf(320,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( ( ~ ( in @ ( sK21_C @ B @ A ) @ B )
              | ~ ( subset @ ( sK21_C @ B @ A ) @ A ) )
            & ( ( in @ ( sK21_C @ B @ A ) @ B )
              | ( subset @ ( sK21_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)],[224]) ).

thf(321,plain,
    ( ( ! [A: $i] :
          ( ! [B: $i,C: $i] :
              ( ( ( ~ ( in @ ( sK20_D @ C @ B @ A ) @ C )
                  | ( ( sK20_D @ C @ B @ A )
                   != A ) )
                & ( ~ ( in @ ( sK20_D @ C @ B @ A ) @ C )
                  | ( ( sK20_D @ C @ B @ A )
                   != B ) )
                & ( ( in @ ( sK20_D @ C @ B @ A ) @ C )
                  | ( ( sK20_D @ C @ B @ A )
                    = A )
                  | ( ( sK20_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)],[223]) ).

thf(322,plain,
    ( ( ! [A: $i] :
          ( ! [B: $i,C: $i] :
              ( ( ( ~ ( in @ ( sK19_D @ C @ B @ A ) @ C )
                  | ~ ( in @ ( sK19_D @ C @ B @ A ) @ A ) )
                & ( ~ ( in @ ( sK19_D @ C @ B @ A ) @ C )
                  | ~ ( in @ ( sK19_D @ C @ B @ A ) @ B ) )
                & ( ( in @ ( sK19_D @ C @ B @ A ) @ C )
                  | ( in @ ( sK19_D @ C @ B @ A ) @ A )
                  | ( in @ ( sK19_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)],[222]) ).

thf(323,plain,
    ( ( ! [A: $i] :
          ( ! [B: $i,C: $i] :
              ( ( ( ! [SY203: $i,SY204: $i] :
                      ( ~ ( in @ SY203 @ A )
                      | ~ ( in @ SY204 @ B )
                      | ( ( sK16_D @ C @ B @ A )
                       != ( ordered_pair @ SY203 @ SY204 ) ) )
                  | ~ ( in @ ( sK16_D @ C @ B @ A ) @ C ) )
                & ( ( ( in @ ( sK17_SY205 @ C @ B @ A ) @ A )
                    & ( in @ ( sK18_SY207 @ C @ B @ A ) @ B )
                    & ( ( sK16_D @ C @ B @ A )
                      = ( ordered_pair @ ( sK17_SY205 @ C @ B @ A ) @ ( sK18_SY207 @ C @ B @ A ) ) ) )
                  | ( in @ ( sK16_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 @ ( sK14_E @ D @ C @ B @ A ) @ A )
                      & ( in @ ( sK15_SY202 @ D @ C @ B @ A ) @ B )
                      & ( D
                        = ( ordered_pair @ ( sK14_E @ D @ C @ B @ A ) @ ( sK15_SY202 @ D @ C @ B @ A ) ) ) ) ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[221]) ).

thf(324,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( ( in @ ( sK13_C @ B @ A ) @ A )
            & ~ ( in @ ( sK13_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)],[220]) ).

thf(325,plain,
    ( ( ! [A: $i] :
          ( ! [B: $i,C: $i] :
              ( ( ( ~ ( in @ ( sK12_D @ C @ B @ A ) @ A )
                  | ~ ( in @ ( sK12_D @ C @ B @ A ) @ B )
                  | ~ ( in @ ( sK12_D @ C @ B @ A ) @ C ) )
                & ( ( in @ ( sK12_D @ C @ B @ A ) @ A )
                  | ( in @ ( sK12_D @ C @ B @ A ) @ C ) )
                & ( ( in @ ( sK12_D @ C @ B @ A ) @ B )
                  | ( in @ ( sK12_D @ C @ B @ A ) @ C ) ) )
              | ( C
                = ( set_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)],[219]) ).

thf(326,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( ( ! [SY200: $i] :
                  ( ~ ( in @ ( sK10_C @ B @ A ) @ SY200 )
                  | ~ ( in @ SY200 @ A ) )
              | ~ ( in @ ( sK10_C @ B @ A ) @ B ) )
            & ( ( ( in @ ( sK10_C @ B @ A ) @ ( sK11_SY201 @ B @ A ) )
                & ( in @ ( sK11_SY201 @ B @ A ) @ A ) )
              | ( in @ ( sK10_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 @ ( sK9_D @ C @ B @ A ) )
                  & ( in @ ( sK9_D @ C @ B @ A ) @ A ) ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[218]) ).

thf(327,plain,
    ( ( ! [A: $i] :
          ( ! [B: $i,C: $i] :
              ( ( ( ~ ( in @ ( sK8_D @ C @ B @ A ) @ A )
                  | ( in @ ( sK8_D @ C @ B @ A ) @ B )
                  | ~ ( in @ ( sK8_D @ C @ B @ A ) @ C ) )
                & ( ( in @ ( sK8_D @ C @ B @ A ) @ A )
                  | ( in @ ( sK8_D @ C @ B @ A ) @ C ) )
                & ( ~ ( in @ ( sK8_D @ C @ B @ A ) @ B )
                  | ( in @ ( sK8_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)],[217]) ).

thf(328,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( ordered_pair @ A @ B )
          = ( unordered_pair @ ( unordered_pair @ A @ B ) @ ( singleton @ A ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[129]) ).

thf(329,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)],[216]) ).

thf(330,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)],[215]) ).

thf(331,plain,
    $true = $true,
    inference(copy,[status(thm)],[126]) ).

thf(332,plain,
    $true = $true,
    inference(copy,[status(thm)],[125]) ).

thf(333,plain,
    $true = $true,
    inference(copy,[status(thm)],[124]) ).

thf(334,plain,
    $true = $true,
    inference(copy,[status(thm)],[123]) ).

thf(335,plain,
    $true = $true,
    inference(copy,[status(thm)],[122]) ).

thf(336,plain,
    $true = $true,
    inference(copy,[status(thm)],[121]) ).

thf(337,plain,
    $true = $true,
    inference(copy,[status(thm)],[120]) ).

thf(338,plain,
    $true = $true,
    inference(copy,[status(thm)],[119]) ).

thf(339,plain,
    $true = $true,
    inference(copy,[status(thm)],[118]) ).

thf(340,plain,
    $true = $true,
    inference(copy,[status(thm)],[117]) ).

thf(341,plain,
    ( ( empty @ empty_set )
    = $true ),
    inference(copy,[status(thm)],[116]) ).

thf(342,plain,
    ( ( ! [A: $i,B: $i] :
          ~ ( empty @ ( ordered_pair @ A @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[115]) ).

thf(343,plain,
    ( ( ! [A: $i] :
          ( ( empty @ A )
          | ! [B: $i] :
              ~ ( empty @ ( set_union2 @ A @ B ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[214]) ).

thf(344,plain,
    ( ( ! [A: $i] :
          ( ( empty @ A )
          | ! [B: $i] :
              ~ ( empty @ ( set_union2 @ B @ A ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[213]) ).

thf(345,plain,
    ( ( ! [A: $i] :
          ( ( set_union2 @ A @ A )
          = A ) )
    = $true ),
    inference(copy,[status(thm)],[212]) ).

thf(346,plain,
    ( ( ! [A: $i] :
          ( ( set_intersection2 @ A @ A )
          = A ) )
    = $true ),
    inference(copy,[status(thm)],[211]) ).

thf(347,plain,
    ( ( ! [A: $i] :
          ~ ( proper_subset @ A @ A ) )
    = $true ),
    inference(copy,[status(thm)],[210]) ).

thf(348,plain,
    ( ( empty @ sK7_A )
    = $true ),
    inference(copy,[status(thm)],[209]) ).

thf(349,plain,
    ( ( ~ ( empty @ sK6_A ) )
    = $true ),
    inference(copy,[status(thm)],[208]) ).

thf(350,plain,
    ( ( ! [A: $i] : ( subset @ A @ A ) )
    = $true ),
    inference(copy,[status(thm)],[207]) ).

thf(351,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( disjoint @ A @ B )
          | ( disjoint @ B @ A ) ) )
    = $true ),
    inference(copy,[status(thm)],[206]) ).

thf(352,plain,
    ( ( ! [A: $i] :
          ( ( set_union2 @ A @ empty_set )
          = A ) )
    = $true ),
    inference(copy,[status(thm)],[105]) ).

thf(353,plain,
    ( ( ! [A: $i] :
          ( ( set_intersection2 @ A @ empty_set )
          = empty_set ) )
    = $true ),
    inference(copy,[status(thm)],[104]) ).

thf(354,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( ( ~ ( in @ ( sK5_C @ B @ A ) @ A )
              | ~ ( in @ ( sK5_C @ B @ A ) @ B ) )
            & ( ( in @ ( sK5_C @ B @ A ) @ A )
              | ( in @ ( sK5_C @ B @ A ) @ B ) ) )
          | ( A = B ) ) )
    = $true ),
    inference(copy,[status(thm)],[205]) ).

thf(355,plain,
    ( ( ! [A: $i] :
          ( ( set_difference @ A @ empty_set )
          = A ) )
    = $true ),
    inference(copy,[status(thm)],[102]) ).

thf(356,plain,
    ( ( ! [A: $i] :
          ( ( set_difference @ empty_set @ A )
          = empty_set ) )
    = $true ),
    inference(copy,[status(thm)],[101]) ).

thf(357,plain,
    ( ( ! [A: $i] :
          ( ~ ( empty @ A )
          | ( A = empty_set ) ) )
    = $true ),
    inference(copy,[status(thm)],[204]) ).

thf(358,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( empty @ B )
          | ~ ( in @ A @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[203]) ).

thf(359,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( A = B )
          | ~ ( empty @ A )
          | ~ ( empty @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[202]) ).

thf(360,plain,
    ( ( ( in @ ( ordered_pair @ sK1_A @ sK2_SY194 ) @ ( cartesian_product2 @ sK3_SY197 @ sK4_SY199 ) )
      & ( ~ ( in @ sK1_A @ sK3_SY197 )
        | ~ ( in @ sK2_SY194 @ sK4_SY199 ) ) )
    = $true ),
    inference(copy,[status(thm)],[200]) ).

thf(361,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)],[290]) ).

thf(362,plain,
    ( ( ! [SX0: $i] :
          ~ ( ~ ! [SX1: $i,SX2: $i] :
                  ( ~ ( ~ ( ~ ( in @ ( sK8_D @ SX2 @ SX1 @ SX0 ) @ SX0 )
                          | ( in @ ( sK8_D @ SX2 @ SX1 @ SX0 ) @ SX1 )
                          | ~ ( in @ ( sK8_D @ SX2 @ SX1 @ SX0 ) @ SX2 ) )
                      | ~ ~ ( ~ ( ( in @ ( sK8_D @ SX2 @ SX1 @ SX0 ) @ SX0 )
                                | ( in @ ( sK8_D @ SX2 @ SX1 @ SX0 ) @ SX2 ) )
                            | ~ ( ~ ( in @ ( sK8_D @ SX2 @ SX1 @ SX0 ) @ SX1 )
                                | ( in @ ( sK8_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)],[327]) ).

thf(363,plain,
    ( ( ! [SX0: $i] :
          ~ ( ~ ! [SX1: $i,SX2: $i] :
                  ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK19_D @ SX2 @ SX1 @ SX0 ) @ SX2 )
                                | ~ ( in @ ( sK19_D @ SX2 @ SX1 @ SX0 ) @ SX0 ) )
                            | ~ ( ~ ( in @ ( sK19_D @ SX2 @ SX1 @ SX0 ) @ SX2 )
                                | ~ ( in @ ( sK19_D @ SX2 @ SX1 @ SX0 ) @ SX1 ) ) )
                      | ~ ( ( in @ ( sK19_D @ SX2 @ SX1 @ SX0 ) @ SX2 )
                          | ( in @ ( sK19_D @ SX2 @ SX1 @ SX0 ) @ SX0 )
                          | ( in @ ( sK19_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)],[322]) ).

thf(364,plain,
    ( ( ~ ( ~ ! [SX0: $i,SX1: $i] :
                ( ( disjoint @ SX0 @ SX1 )
                | ( in @ ( sK24_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)],[299]) ).

thf(365,plain,
    ( ( ~ ( ~ ( in @ ( ordered_pair @ sK1_A @ sK2_SY194 ) @ ( cartesian_product2 @ sK3_SY197 @ sK4_SY199 ) )
          | ~ ( ~ ( in @ sK1_A @ sK3_SY197 )
              | ~ ( in @ sK2_SY194 @ sK4_SY199 ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[360]) ).

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)],[288]) ).

thf(367,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)],[329]) ).

thf(368,plain,
    ( ( ! [SX0: $i] :
          ~ ( ~ ! [SX1: $i,SX2: $i] :
                  ( ~ ( ~ ( ~ ( in @ ( sK12_D @ SX2 @ SX1 @ SX0 ) @ SX0 )
                          | ~ ( in @ ( sK12_D @ SX2 @ SX1 @ SX0 ) @ SX1 )
                          | ~ ( in @ ( sK12_D @ SX2 @ SX1 @ SX0 ) @ SX2 ) )
                      | ~ ~ ( ~ ( ( in @ ( sK12_D @ SX2 @ SX1 @ SX0 ) @ SX0 )
                                | ( in @ ( sK12_D @ SX2 @ SX1 @ SX0 ) @ SX2 ) )
                            | ~ ( ( in @ ( sK12_D @ SX2 @ SX1 @ SX0 ) @ SX1 )
                                | ( in @ ( sK12_D @ SX2 @ SX1 @ SX0 ) @ SX2 ) ) ) )
                  | ( SX2
                    = ( set_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)],[325]) ).

thf(369,plain,
    ( ( ~ ( ~ ! [SX0: $i] :
                ( ( in @ ( sK22_B @ SX0 ) @ SX0 )
                | ( SX0 = empty_set ) )
          | ~ ! [SX0: $i] :
                ( ( SX0 != empty_set )
                | ! [SX1: $i] :
                    ~ ( in @ SX1 @ SX0 ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[319]) ).

thf(370,plain,
    ( ( ~ ( ~ ! [SX0: $i,SX1: $i] :
                ( ~ ( ~ ( ~ ( in @ ( sK21_C @ SX1 @ SX0 ) @ SX1 )
                        | ~ ( subset @ ( sK21_C @ SX1 @ SX0 ) @ SX0 ) )
                    | ~ ( ( in @ ( sK21_C @ SX1 @ SX0 ) @ SX1 )
                        | ( subset @ ( sK21_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)],[320]) ).

thf(371,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)],[271]) ).

thf(372,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)],[306]) ).

thf(373,plain,
    ( ( ! [SX0: $i] :
          ~ ( ~ ! [SX1: $i,SX2: $i] :
                  ( ~ ( ~ ( ! [SX3: $i,SX4: $i] :
                              ( ~ ( in @ SX3 @ SX0 )
                              | ~ ( in @ SX4 @ SX1 )
                              | ( ( sK16_D @ SX2 @ SX1 @ SX0 )
                               != ( ordered_pair @ SX3 @ SX4 ) ) )
                          | ~ ( in @ ( sK16_D @ SX2 @ SX1 @ SX0 ) @ SX2 ) )
                      | ~ ( ~ ( ~ ~ ( ~ ( in @ ( sK17_SY205 @ SX2 @ SX1 @ SX0 ) @ SX0 )
                                    | ~ ( in @ ( sK18_SY207 @ SX2 @ SX1 @ SX0 ) @ SX1 ) )
                              | ( ( sK16_D @ SX2 @ SX1 @ SX0 )
                               != ( ordered_pair @ ( sK17_SY205 @ SX2 @ SX1 @ SX0 ) @ ( sK18_SY207 @ SX2 @ SX1 @ SX0 ) ) ) )
                          | ( in @ ( sK16_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 @ ( sK14_E @ SX3 @ SX2 @ SX1 @ SX0 ) @ SX0 )
                                      | ~ ( in @ ( sK15_SY202 @ SX3 @ SX2 @ SX1 @ SX0 ) @ SX1 ) )
                                | ( SX3
                                 != ( ordered_pair @ ( sK14_E @ SX3 @ SX2 @ SX1 @ SX0 ) @ ( sK15_SY202 @ SX3 @ SX2 @ SX1 @ SX0 ) ) ) ) ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[323]) ).

thf(374,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)],[275]) ).

thf(375,plain,
    ( ( ~ ( ~ ! [SX0: $i,SX1: $i] :
                ( ~ ( ~ ( ( ( sK23_C @ SX1 @ SX0 )
                         != SX0 )
                        | ~ ( in @ ( sK23_C @ SX1 @ SX0 ) @ SX1 ) )
                    | ~ ( ( ( sK23_C @ SX1 @ SX0 )
                          = SX0 )
                        | ( in @ ( sK23_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)],[318]) ).

thf(376,plain,
    ( ( ~ ( ~ ! [SX0: $i,SX1: $i] :
                ( ~ ( ~ ( in @ ( sK13_C @ SX1 @ SX0 ) @ SX0 )
                    | ~ ~ ( in @ ( sK13_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)],[324]) ).

thf(377,plain,
    ( ( ~ ( ~ ! [SX0: $i,SX1: $i] :
                ( ( disjoint @ SX0 @ SX1 )
                | ~ ( ~ ( in @ ( sK25_C @ SX1 @ SX0 ) @ SX0 )
                    | ~ ( in @ ( sK25_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)],[293]) ).

thf(378,plain,
    ( ( ! [SX0: $i] :
          ~ ( ~ ! [SX1: $i,SX2: $i] :
                  ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK20_D @ SX2 @ SX1 @ SX0 ) @ SX2 )
                                | ( ( sK20_D @ SX2 @ SX1 @ SX0 )
                                 != SX0 ) )
                            | ~ ( ~ ( in @ ( sK20_D @ SX2 @ SX1 @ SX0 ) @ SX2 )
                                | ( ( sK20_D @ SX2 @ SX1 @ SX0 )
                                 != SX1 ) ) )
                      | ~ ( ( in @ ( sK20_D @ SX2 @ SX1 @ SX0 ) @ SX2 )
                          | ( ( sK20_D @ SX2 @ SX1 @ SX0 )
                            = SX0 )
                          | ( ( sK20_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)],[321]) ).

thf(379,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)],[273]) ).

thf(380,plain,
    ( ( ~ ( ~ ! [SX0: $i,SX1: $i] :
                ( ~ ( in @ SX0 @ SX1 )
                | ( subset @ ( singleton @ SX0 ) @ SX1 ) )
          | ~ ! [SX0: $i,SX1: $i] :
                ( ~ ( subset @ ( singleton @ SX0 ) @ SX1 )
                | ( in @ SX0 @ SX1 ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[270]) ).

thf(381,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)],[292]) ).

thf(382,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)],[286]) ).

thf(383,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)],[317]) ).

thf(384,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)],[330]) ).

thf(385,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)],[289]) ).

thf(386,plain,
    ( ( ~ ( ~ ! [SX0: $i,SX1: $i] :
                ( ~ ( ~ ( ! [SX2: $i] :
                            ( ~ ( in @ ( sK10_C @ SX1 @ SX0 ) @ SX2 )
                            | ~ ( in @ SX2 @ SX0 ) )
                        | ~ ( in @ ( sK10_C @ SX1 @ SX0 ) @ SX1 ) )
                    | ~ ( ~ ( ~ ( in @ ( sK10_C @ SX1 @ SX0 ) @ ( sK11_SY201 @ SX1 @ SX0 ) )
                            | ~ ( in @ ( sK11_SY201 @ SX1 @ SX0 ) @ SX0 ) )
                        | ( in @ ( sK10_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 @ ( sK9_D @ SX2 @ SX1 @ SX0 ) )
                              | ~ ( in @ ( sK9_D @ SX2 @ SX1 @ SX0 ) @ SX0 ) ) ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[326]) ).

thf(387,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( ~ ( ~ ( in @ ( sK5_C @ SX1 @ SX0 ) @ SX0 )
                  | ~ ( in @ ( sK5_C @ SX1 @ SX0 ) @ SX1 ) )
              | ~ ( ( in @ ( sK5_C @ SX1 @ SX0 ) @ SX0 )
                  | ( in @ ( sK5_C @ SX1 @ SX0 ) @ SX1 ) ) )
          | ( SX0 = SX1 ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[354]) ).

thf(388,plain,
    ( ( ~ ( ~ ! [SX0: $i,SX1: $i] :
                ( ( ( set_difference @ SX0 @ ( singleton @ SX1 ) )
                 != SX0 )
                | ~ ( in @ SX1 @ SX0 ) )
          | ~ ! [SX0: $i,SX1: $i] :
                ( ( in @ SX1 @ SX0 )
                | ( ( set_difference @ SX0 @ ( singleton @ SX1 ) )
                  = SX0 ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[302]) ).

thf(389,plain,
    ! [SV1: $i] :
      ( ( ( ( singleton @ SV1 )
         != empty_set ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[266]) ).

thf(390,plain,
    ! [SV2: $i] :
      ( ( ! [SY208: $i] :
            ( ~ ( in @ SV2 @ SY208 )
            | ( ( set_union2 @ ( singleton @ SV2 ) @ SY208 )
              = SY208 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[267]) ).

thf(391,plain,
    ! [SV3: $i] :
      ( ( ! [SY209: $i] :
            ( ~ ( disjoint @ ( singleton @ SV3 ) @ SY209 )
            | ~ ( in @ SV3 @ SY209 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[268]) ).

thf(392,plain,
    ! [SV4: $i] :
      ( ( ! [SY210: $i] :
            ( ( in @ SV4 @ SY210 )
            | ( disjoint @ ( singleton @ SV4 ) @ SY210 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[269]) ).

thf(393,plain,
    ! [SV5: $i] :
      ( ( ! [SY211: $i] :
            ( ~ ( subset @ SV5 @ SY211 )
            | ! [SY212: $i] :
                ( ( in @ SY212 @ SV5 )
                | ( subset @ SV5 @ ( set_difference @ SY211 @ ( singleton @ SY212 ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[272]) ).

thf(394,plain,
    ! [SV6: $i] :
      ( ( ! [SY213: $i] :
            ( ~ ( in @ SV6 @ SY213 )
            | ( subset @ SV6 @ ( union @ SY213 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[274]) ).

thf(395,plain,
    ! [SV7: $i] :
      ( ( ! [SY214: $i,SY215: $i,SY216: $i] :
            ( ( SV7 = SY216 )
            | ( SV7 = SY215 )
            | ( ( unordered_pair @ SV7 @ SY214 )
             != ( unordered_pair @ SY215 @ SY216 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[276]) ).

thf(396,plain,
    ! [SV8: $i] :
      ( ( ! [SY217: $i] :
            ( ~ ( subset @ SV8 @ SY217 )
            | ( ( set_union2 @ SV8 @ SY217 )
              = SY217 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[277]) ).

thf(397,plain,
    ! [SV9: $i] :
      ( ( ! [SY218: $i] : ( subset @ ( set_intersection2 @ SV9 @ SY218 ) @ SV9 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[278]) ).

thf(398,plain,
    ! [SV10: $i] :
      ( ( ! [SY219: $i,SY220: $i] :
            ( ~ ( subset @ SV10 @ SY219 )
            | ~ ( subset @ SV10 @ SY220 )
            | ( subset @ SV10 @ ( set_intersection2 @ SY219 @ SY220 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[279]) ).

thf(399,plain,
    ! [SV11: $i] :
      ( ( ! [SY221: $i,SY222: $i] :
            ( ~ ( subset @ SV11 @ SY221 )
            | ~ ( subset @ SY221 @ SY222 )
            | ( subset @ SV11 @ SY222 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[280]) ).

thf(400,plain,
    ! [SV12: $i] :
      ( ( ! [SY223: $i] :
            ( ~ ( subset @ SV12 @ SY223 )
            | ! [SY224: $i] : ( subset @ ( set_intersection2 @ SV12 @ SY224 ) @ ( set_intersection2 @ SY223 @ SY224 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[282]) ).

thf(401,plain,
    ! [SV13: $i] :
      ( ( ! [SY225: $i] :
            ( ~ ( subset @ SV13 @ SY225 )
            | ( ( set_intersection2 @ SV13 @ SY225 )
              = SV13 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[283]) ).

thf(402,plain,
    ! [SV14: $i] :
      ( ( subset @ empty_set @ SV14 )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[284]) ).

thf(403,plain,
    ! [SV15: $i] :
      ( ( ! [SY226: $i] :
            ( ~ ( subset @ SV15 @ SY226 )
            | ! [SY227: $i] : ( subset @ ( set_difference @ SV15 @ SY227 ) @ ( set_difference @ SY226 @ SY227 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[285]) ).

thf(404,plain,
    ! [SV16: $i] :
      ( ( ! [SY228: $i] : ( subset @ ( set_difference @ SV16 @ SY228 ) @ SV16 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[287]) ).

thf(405,plain,
    ! [SV17: $i] :
      ( ( ! [SY229: $i] :
            ( ( set_union2 @ SV17 @ ( set_difference @ SY229 @ SV17 ) )
            = ( set_union2 @ SV17 @ SY229 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[291]) ).

thf(406,plain,
    ! [SV18: $i] :
      ( ( ~ ( subset @ SV18 @ empty_set )
        | ( SV18 = empty_set ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[294]) ).

thf(407,plain,
    ! [SV19: $i] :
      ( ( ! [SY230: $i] :
            ( ( set_difference @ ( set_union2 @ SV19 @ SY230 ) @ SY230 )
            = ( set_difference @ SV19 @ SY230 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[295]) ).

thf(408,plain,
    ! [SV20: $i] :
      ( ( ! [SY231: $i] :
            ( ~ ( subset @ SV20 @ SY231 )
            | ( SY231
              = ( set_union2 @ SV20 @ ( set_difference @ SY231 @ SV20 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[296]) ).

thf(409,plain,
    ! [SV21: $i] :
      ( ( ! [SY232: $i] :
            ( ~ ( in @ SV21 @ SY232 )
            | ( ( set_union2 @ ( singleton @ SV21 ) @ SY232 )
              = SY232 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[297]) ).

thf(410,plain,
    ! [SV22: $i] :
      ( ( ! [SY233: $i] :
            ( ( set_difference @ SV22 @ ( set_difference @ SV22 @ SY233 ) )
            = ( set_intersection2 @ SV22 @ SY233 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[298]) ).

thf(411,plain,
    ! [SV23: $i] :
      ( ( ! [SY234: $i] :
            ( ~ ( proper_subset @ SY234 @ SV23 )
            | ~ ( subset @ SV23 @ SY234 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[300]) ).

thf(412,plain,
    ! [SV24: $i] :
      ( ( ! [SY235: $i,SY236: $i] :
            ( ~ ( disjoint @ SY235 @ SY236 )
            | ~ ( subset @ SV24 @ SY235 )
            | ( disjoint @ SV24 @ SY236 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[301]) ).

thf(413,plain,
    ! [SV25: $i] :
      ( ( ( unordered_pair @ SV25 @ SV25 )
        = ( singleton @ SV25 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[303]) ).

thf(414,plain,
    ! [SV26: $i] :
      ( ( ! [SY237: $i] :
            ( ~ ( subset @ ( singleton @ SV26 ) @ ( singleton @ SY237 ) )
            | ( SV26 = SY237 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[304]) ).

thf(415,plain,
    ! [SV27: $i] :
      ( ( ! [SY238: $i] : ( subset @ SV27 @ ( set_union2 @ SV27 @ SY238 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[305]) ).

thf(416,plain,
    ! [SV28: $i] :
      ( ( ! [SY239: $i,SY240: $i] :
            ( ~ ( subset @ SV28 @ SY239 )
            | ~ ( subset @ SY240 @ SY239 )
            | ( subset @ ( set_union2 @ SV28 @ SY240 ) @ SY239 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[307]) ).

thf(417,plain,
    ! [SV29: $i] :
      ( ( ! [SY241: $i] :
            ( ! [SY242: $i] :
                ( ( singleton @ SV29 )
               != ( unordered_pair @ SY241 @ SY242 ) )
            | ( SV29 = SY241 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[308]) ).

thf(418,plain,
    ! [SV30: $i] :
      ( ( ! [SY243: $i] :
            ( ~ ( in @ SV30 @ SY243 )
            | ( subset @ SV30 @ ( union @ SY243 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[309]) ).

thf(419,plain,
    ! [SV31: $i] :
      ( ( ( union @ ( powerset @ SV31 ) )
        = SV31 )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[310]) ).

thf(420,plain,
    ! [SV32: $i] :
      ( ( ! [SY244: $i,SY245: $i] :
            ( ( ( singleton @ SV32 )
             != ( unordered_pair @ SY244 @ SY245 ) )
            | ( SY244 = SY245 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[311]) ).

thf(421,plain,
    ! [SV33: $i] :
      ( ( ! [SY246: $i] :
            ( ~ ( in @ SV33 @ SY246 )
            | ~ ( in @ SY246 @ SV33 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[312]) ).

thf(422,plain,
    ! [SV34: $i] :
      ( ( ! [SY247: $i] :
            ( ~ ( proper_subset @ SV34 @ SY247 )
            | ~ ( proper_subset @ SY247 @ SV34 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[313]) ).

thf(423,plain,
    ! [SV35: $i] :
      ( ( ! [SY248: $i] :
            ( ( unordered_pair @ SV35 @ SY248 )
            = ( unordered_pair @ SY248 @ SV35 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[314]) ).

thf(424,plain,
    ! [SV36: $i] :
      ( ( ! [SY249: $i] :
            ( ( set_union2 @ SV36 @ SY249 )
            = ( set_union2 @ SY249 @ SV36 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[315]) ).

thf(425,plain,
    ! [SV37: $i] :
      ( ( ! [SY250: $i] :
            ( ( set_intersection2 @ SV37 @ SY250 )
            = ( set_intersection2 @ SY250 @ SV37 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[316]) ).

thf(426,plain,
    ! [SV38: $i] :
      ( ( ! [SY251: $i] :
            ( ( ordered_pair @ SV38 @ SY251 )
            = ( unordered_pair @ ( unordered_pair @ SV38 @ SY251 ) @ ( singleton @ SV38 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[328]) ).

thf(427,plain,
    ! [SV39: $i] :
      ( ( ! [SY252: $i] :
            ~ ( empty @ ( ordered_pair @ SV39 @ SY252 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[342]) ).

thf(428,plain,
    ! [SV40: $i] :
      ( ( ( empty @ SV40 )
        | ! [SY253: $i] :
            ~ ( empty @ ( set_union2 @ SV40 @ SY253 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[343]) ).

thf(429,plain,
    ! [SV41: $i] :
      ( ( ( empty @ SV41 )
        | ! [SY254: $i] :
            ~ ( empty @ ( set_union2 @ SY254 @ SV41 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[344]) ).

thf(430,plain,
    ! [SV42: $i] :
      ( ( ( set_union2 @ SV42 @ SV42 )
        = SV42 )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[345]) ).

thf(431,plain,
    ! [SV43: $i] :
      ( ( ( set_intersection2 @ SV43 @ SV43 )
        = SV43 )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[346]) ).

thf(432,plain,
    ! [SV44: $i] :
      ( ( ~ ( proper_subset @ SV44 @ SV44 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[347]) ).

thf(433,plain,
    ( ( empty @ sK6_A )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[349]) ).

thf(434,plain,
    ! [SV45: $i] :
      ( ( subset @ SV45 @ SV45 )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[350]) ).

thf(435,plain,
    ! [SV46: $i] :
      ( ( ! [SY255: $i] :
            ( ~ ( disjoint @ SV46 @ SY255 )
            | ( disjoint @ SY255 @ SV46 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[351]) ).

thf(436,plain,
    ! [SV47: $i] :
      ( ( ( set_union2 @ SV47 @ empty_set )
        = SV47 )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[352]) ).

thf(437,plain,
    ! [SV48: $i] :
      ( ( ( set_intersection2 @ SV48 @ empty_set )
        = empty_set )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[353]) ).

thf(438,plain,
    ! [SV49: $i] :
      ( ( ( set_difference @ SV49 @ empty_set )
        = SV49 )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[355]) ).

thf(439,plain,
    ! [SV50: $i] :
      ( ( ( set_difference @ empty_set @ SV50 )
        = empty_set )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[356]) ).

thf(440,plain,
    ! [SV51: $i] :
      ( ( ~ ( empty @ SV51 )
        | ( SV51 = empty_set ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[357]) ).

thf(441,plain,
    ! [SV52: $i] :
      ( ( ! [SY256: $i] :
            ( ~ ( empty @ SY256 )
            | ~ ( in @ SV52 @ SY256 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[358]) ).

thf(442,plain,
    ! [SV53: $i] :
      ( ( ! [SY257: $i] :
            ( ( SV53 = SY257 )
            | ~ ( empty @ SV53 )
            | ~ ( empty @ SY257 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[359]) ).

thf(443,plain,
    ! [SV54: $i] :
      ( ( ~ ( ~ ! [SY258: $i,SY259: $i] :
                  ( ~ ( in @ SV54 @ SY259 )
                  | ~ ( in @ SY258 @ SY259 )
                  | ( subset @ ( unordered_pair @ SV54 @ SY258 ) @ SY259 ) )
            | ~ ~ ( ~ ! [SY260: $i,SY261: $i] :
                        ( ~ ( subset @ ( unordered_pair @ SV54 @ SY260 ) @ SY261 )
                        | ( in @ SV54 @ SY261 ) )
                  | ~ ! [SY262: $i,SY263: $i] :
                        ( ~ ( subset @ ( unordered_pair @ SV54 @ SY262 ) @ SY263 )
                        | ( in @ SY262 @ SY263 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[361]) ).

thf(444,plain,
    ! [SV55: $i] :
      ( ( ~ ( ~ ! [SY264: $i,SY265: $i] :
                  ( ~ ( ~ ( ~ ( in @ ( sK8_D @ SY265 @ SY264 @ SV55 ) @ SV55 )
                          | ( in @ ( sK8_D @ SY265 @ SY264 @ SV55 ) @ SY264 )
                          | ~ ( in @ ( sK8_D @ SY265 @ SY264 @ SV55 ) @ SY265 ) )
                      | ~ ~ ( ~ ( ( in @ ( sK8_D @ SY265 @ SY264 @ SV55 ) @ SV55 )
                                | ( in @ ( sK8_D @ SY265 @ SY264 @ SV55 ) @ SY265 ) )
                            | ~ ( ~ ( in @ ( sK8_D @ SY265 @ SY264 @ SV55 ) @ SY264 )
                                | ( in @ ( sK8_D @ SY265 @ SY264 @ SV55 ) @ SY265 ) ) ) )
                  | ( SY265
                    = ( set_difference @ SV55 @ SY264 ) ) )
            | ~ ! [SY266: $i,SY267: $i] :
                  ( ( SY267
                   != ( set_difference @ SV55 @ SY266 ) )
                  | ~ ( ~ ! [SY268: $i] :
                            ( ~ ( in @ SY268 @ SV55 )
                            | ( in @ SY268 @ SY266 )
                            | ( in @ SY268 @ SY267 ) )
                      | ~ ~ ( ~ ! [SY269: $i] :
                                  ( ~ ( in @ SY269 @ SY267 )
                                  | ( in @ SY269 @ SV55 ) )
                            | ~ ! [SX3: $i] :
                                  ( ~ ( in @ SX3 @ SY267 )
                                  | ~ ( in @ SX3 @ SY266 ) ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[362]) ).

thf(445,plain,
    ! [SV56: $i] :
      ( ( ~ ( ~ ! [SY271: $i,SY272: $i] :
                  ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK19_D @ SY272 @ SY271 @ SV56 ) @ SY272 )
                                | ~ ( in @ ( sK19_D @ SY272 @ SY271 @ SV56 ) @ SV56 ) )
                            | ~ ( ~ ( in @ ( sK19_D @ SY272 @ SY271 @ SV56 ) @ SY272 )
                                | ~ ( in @ ( sK19_D @ SY272 @ SY271 @ SV56 ) @ SY271 ) ) )
                      | ~ ( ( in @ ( sK19_D @ SY272 @ SY271 @ SV56 ) @ SY272 )
                          | ( in @ ( sK19_D @ SY272 @ SY271 @ SV56 ) @ SV56 )
                          | ( in @ ( sK19_D @ SY272 @ SY271 @ SV56 ) @ SY271 ) ) )
                  | ( SY272
                    = ( set_union2 @ SV56 @ SY271 ) ) )
            | ~ ! [SY273: $i,SY274: $i] :
                  ( ( SY274
                   != ( set_union2 @ SV56 @ SY273 ) )
                  | ~ ( ~ ! [SY275: $i] :
                            ( ~ ( in @ SY275 @ SY274 )
                            | ( in @ SY275 @ SV56 )
                            | ( in @ SY275 @ SY273 ) )
                      | ~ ~ ( ~ ! [SY276: $i] :
                                  ( ~ ( in @ SY276 @ SV56 )
                                  | ( in @ SY276 @ SY274 ) )
                            | ~ ! [SX3: $i] :
                                  ( ~ ( in @ SX3 @ SY273 )
                                  | ( in @ SX3 @ SY274 ) ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[363]) ).

thf(446,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( disjoint @ SX0 @ SX1 )
            | ( in @ ( sK24_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)],[364]) ).

thf(447,plain,
    ( ( ~ ( in @ ( ordered_pair @ sK1_A @ sK2_SY194 ) @ ( cartesian_product2 @ sK3_SY197 @ sK4_SY199 ) )
      | ~ ( ~ ( in @ sK1_A @ sK3_SY197 )
          | ~ ( in @ sK2_SY194 @ sK4_SY199 ) ) )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[365]) ).

thf(448,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(449,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)],[367]) ).

thf(450,plain,
    ! [SV57: $i] :
      ( ( ~ ( ~ ! [SY278: $i,SY279: $i] :
                  ( ~ ( ~ ( ~ ( in @ ( sK12_D @ SY279 @ SY278 @ SV57 ) @ SV57 )
                          | ~ ( in @ ( sK12_D @ SY279 @ SY278 @ SV57 ) @ SY278 )
                          | ~ ( in @ ( sK12_D @ SY279 @ SY278 @ SV57 ) @ SY279 ) )
                      | ~ ~ ( ~ ( ( in @ ( sK12_D @ SY279 @ SY278 @ SV57 ) @ SV57 )
                                | ( in @ ( sK12_D @ SY279 @ SY278 @ SV57 ) @ SY279 ) )
                            | ~ ( ( in @ ( sK12_D @ SY279 @ SY278 @ SV57 ) @ SY278 )
                                | ( in @ ( sK12_D @ SY279 @ SY278 @ SV57 ) @ SY279 ) ) ) )
                  | ( SY279
                    = ( set_intersection2 @ SV57 @ SY278 ) ) )
            | ~ ! [SY280: $i,SY281: $i] :
                  ( ( SY281
                   != ( set_intersection2 @ SV57 @ SY280 ) )
                  | ~ ( ~ ! [SY282: $i] :
                            ( ~ ( in @ SY282 @ SV57 )
                            | ~ ( in @ SY282 @ SY280 )
                            | ( in @ SY282 @ SY281 ) )
                      | ~ ~ ( ~ ! [SY283: $i] :
                                  ( ~ ( in @ SY283 @ SY281 )
                                  | ( in @ SY283 @ SV57 ) )
                            | ~ ! [SX3: $i] :
                                  ( ~ ( in @ SX3 @ SY281 )
                                  | ( in @ SX3 @ SY280 ) ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[368]) ).

thf(451,plain,
    ( ( ~ ! [SX0: $i] :
            ( ( in @ ( sK22_B @ SX0 ) @ SX0 )
            | ( SX0 = empty_set ) )
      | ~ ! [SX0: $i] :
            ( ( SX0 != empty_set )
            | ! [SX1: $i] :
                ~ ( in @ SX1 @ SX0 ) ) )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[369]) ).

thf(452,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( ~ ( ~ ( in @ ( sK21_C @ SX1 @ SX0 ) @ SX1 )
                    | ~ ( subset @ ( sK21_C @ SX1 @ SX0 ) @ SX0 ) )
                | ~ ( ( in @ ( sK21_C @ SX1 @ SX0 ) @ SX1 )
                    | ( subset @ ( sK21_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)],[370]) ).

thf(453,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)],[371]) ).

thf(454,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)],[372]) ).

thf(455,plain,
    ! [SV58: $i] :
      ( ( ~ ( ~ ! [SY285: $i,SY286: $i] :
                  ( ~ ( ~ ( ! [SY287: $i,SY288: $i] :
                              ( ~ ( in @ SY287 @ SV58 )
                              | ~ ( in @ SY288 @ SY285 )
                              | ( ( sK16_D @ SY286 @ SY285 @ SV58 )
                               != ( ordered_pair @ SY287 @ SY288 ) ) )
                          | ~ ( in @ ( sK16_D @ SY286 @ SY285 @ SV58 ) @ SY286 ) )
                      | ~ ( ~ ( ~ ~ ( ~ ( in @ ( sK17_SY205 @ SY286 @ SY285 @ SV58 ) @ SV58 )
                                    | ~ ( in @ ( sK18_SY207 @ SY286 @ SY285 @ SV58 ) @ SY285 ) )
                              | ( ( sK16_D @ SY286 @ SY285 @ SV58 )
                               != ( ordered_pair @ ( sK17_SY205 @ SY286 @ SY285 @ SV58 ) @ ( sK18_SY207 @ SY286 @ SY285 @ SV58 ) ) ) )
                          | ( in @ ( sK16_D @ SY286 @ SY285 @ SV58 ) @ SY286 ) ) )
                  | ( SY286
                    = ( cartesian_product2 @ SV58 @ SY285 ) ) )
            | ~ ! [SY289: $i,SY290: $i] :
                  ( ( SY290
                   != ( cartesian_product2 @ SV58 @ SY289 ) )
                  | ~ ( ~ ! [SY291: $i] :
                            ( ! [SY292: $i,SY293: $i] :
                                ( ~ ( in @ SY292 @ SV58 )
                                | ~ ( in @ SY293 @ SY289 )
                                | ( SY291
                                 != ( ordered_pair @ SY292 @ SY293 ) ) )
                            | ( in @ SY291 @ SY290 ) )
                      | ~ ! [SY294: $i] :
                            ( ~ ( in @ SY294 @ SY290 )
                            | ~ ( ~ ~ ( ~ ( in @ ( sK14_E @ SY294 @ SY290 @ SY289 @ SV58 ) @ SV58 )
                                      | ~ ( in @ ( sK15_SY202 @ SY294 @ SY290 @ SY289 @ SV58 ) @ SY289 ) )
                                | ( SY294
                                 != ( ordered_pair @ ( sK14_E @ SY294 @ SY290 @ SY289 @ SV58 ) @ ( sK15_SY202 @ SY294 @ SY290 @ SY289 @ SV58 ) ) ) ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[373]) ).

thf(456,plain,
    ! [SV59: $i] :
      ( ( ! [SY295: $i] :
            ~ ( ~ ! [SY296: $i,SY297: $i] :
                    ( ~ ( in @ SV59 @ SY296 )
                    | ~ ( in @ SY295 @ SY297 )
                    | ( in @ ( ordered_pair @ SV59 @ SY295 ) @ ( cartesian_product2 @ SY296 @ SY297 ) ) )
              | ~ ~ ( ~ ! [SY298: $i] :
                          ( ! [SY299: $i] :
                              ~ ( in @ ( ordered_pair @ SV59 @ SY295 ) @ ( cartesian_product2 @ SY298 @ SY299 ) )
                          | ( in @ SV59 @ SY298 ) )
                    | ~ ! [SY300: $i,SY301: $i] :
                          ( ~ ( in @ ( ordered_pair @ SV59 @ SY295 ) @ ( cartesian_product2 @ SY300 @ SY301 ) )
                          | ( in @ SY295 @ SY301 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[374]) ).

thf(457,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( ~ ( ( ( sK23_C @ SX1 @ SX0 )
                     != SX0 )
                    | ~ ( in @ ( sK23_C @ SX1 @ SX0 ) @ SX1 ) )
                | ~ ( ( ( sK23_C @ SX1 @ SX0 )
                      = SX0 )
                    | ( in @ ( sK23_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)],[375]) ).

thf(458,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( ~ ( in @ ( sK13_C @ SX1 @ SX0 ) @ SX0 )
                | ~ ~ ( in @ ( sK13_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)],[376]) ).

thf(459,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( disjoint @ SX0 @ SX1 )
            | ~ ( ~ ( in @ ( sK25_C @ SX1 @ SX0 ) @ SX0 )
                | ~ ( in @ ( sK25_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)],[377]) ).

thf(460,plain,
    ! [SV60: $i] :
      ( ( ~ ( ~ ! [SY302: $i,SY303: $i] :
                  ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK20_D @ SY303 @ SY302 @ SV60 ) @ SY303 )
                                | ( ( sK20_D @ SY303 @ SY302 @ SV60 )
                                 != SV60 ) )
                            | ~ ( ~ ( in @ ( sK20_D @ SY303 @ SY302 @ SV60 ) @ SY303 )
                                | ( ( sK20_D @ SY303 @ SY302 @ SV60 )
                                 != SY302 ) ) )
                      | ~ ( ( in @ ( sK20_D @ SY303 @ SY302 @ SV60 ) @ SY303 )
                          | ( ( sK20_D @ SY303 @ SY302 @ SV60 )
                            = SV60 )
                          | ( ( sK20_D @ SY303 @ SY302 @ SV60 )
                            = SY302 ) ) )
                  | ( SY303
                    = ( unordered_pair @ SV60 @ SY302 ) ) )
            | ~ ! [SY304: $i,SY305: $i] :
                  ( ( SY305
                   != ( unordered_pair @ SV60 @ SY304 ) )
                  | ~ ( ~ ! [SY306: $i] :
                            ( ~ ( in @ SY306 @ SY305 )
                            | ( SY306 = SV60 )
                            | ( SY306 = SY304 ) )
                      | ~ ~ ( ~ ! [SY307: $i] :
                                  ( ( SY307 != SV60 )
                                  | ( in @ SY307 @ SY305 ) )
                            | ~ ! [SX3: $i] :
                                  ( ( SX3 != SY304 )
                                  | ( in @ SX3 @ SY305 ) ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[378]) ).

thf(461,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)],[379]) ).

thf(462,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)],[380]) ).

thf(463,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)],[381]) ).

thf(464,plain,
    ! [SV61: $i] :
      ( ( ! [SY309: $i] :
            ~ ( ~ ! [SY310: $i] :
                    ( ! [SY311: $i] :
                        ( ( ordered_pair @ SV61 @ SY309 )
                       != ( ordered_pair @ SY310 @ SY311 ) )
                    | ( SV61 = SY310 ) )
              | ~ ! [SY312: $i,SY313: $i] :
                    ( ( ( ordered_pair @ SV61 @ SY309 )
                     != ( ordered_pair @ SY312 @ SY313 ) )
                    | ( SY309 = SY313 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[382]) ).

thf(465,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)],[383]) ).

thf(466,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)],[384]) ).

thf(467,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)],[385]) ).

thf(468,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( ~ ( ! [SX2: $i] :
                        ( ~ ( in @ ( sK10_C @ SX1 @ SX0 ) @ SX2 )
                        | ~ ( in @ SX2 @ SX0 ) )
                    | ~ ( in @ ( sK10_C @ SX1 @ SX0 ) @ SX1 ) )
                | ~ ( ~ ( ~ ( in @ ( sK10_C @ SX1 @ SX0 ) @ ( sK11_SY201 @ SX1 @ SX0 ) )
                        | ~ ( in @ ( sK11_SY201 @ SX1 @ SX0 ) @ SX0 ) )
                    | ( in @ ( sK10_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 @ ( sK9_D @ SX2 @ SX1 @ SX0 ) )
                          | ~ ( in @ ( sK9_D @ SX2 @ SX1 @ SX0 ) @ SX0 ) ) ) ) ) )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[386]) ).

thf(469,plain,
    ! [SV62: $i] :
      ( ( ! [SY314: $i] :
            ( ~ ( ~ ( ~ ( in @ ( sK5_C @ SY314 @ SV62 ) @ SV62 )
                    | ~ ( in @ ( sK5_C @ SY314 @ SV62 ) @ SY314 ) )
                | ~ ( ( in @ ( sK5_C @ SY314 @ SV62 ) @ SV62 )
                    | ( in @ ( sK5_C @ SY314 @ SV62 ) @ SY314 ) ) )
            | ( SV62 = SY314 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[387]) ).

thf(470,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( ( set_difference @ SX0 @ ( singleton @ SX1 ) )
             != SX0 )
            | ~ ( in @ SX1 @ SX0 ) )
      | ~ ! [SX0: $i,SX1: $i] :
            ( ( in @ SX1 @ SX0 )
            | ( ( set_difference @ SX0 @ ( singleton @ SX1 ) )
              = SX0 ) ) )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[388]) ).

thf(471,plain,
    ! [SV1: $i] :
      ( ( ( singleton @ SV1 )
        = empty_set )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[389]) ).

thf(472,plain,
    ! [SV63: $i,SV2: $i] :
      ( ( ~ ( in @ SV2 @ SV63 )
        | ( ( set_union2 @ ( singleton @ SV2 ) @ SV63 )
          = SV63 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[390]) ).

thf(473,plain,
    ! [SV64: $i,SV3: $i] :
      ( ( ~ ( disjoint @ ( singleton @ SV3 ) @ SV64 )
        | ~ ( in @ SV3 @ SV64 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[391]) ).

thf(474,plain,
    ! [SV65: $i,SV4: $i] :
      ( ( ( in @ SV4 @ SV65 )
        | ( disjoint @ ( singleton @ SV4 ) @ SV65 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[392]) ).

thf(475,plain,
    ! [SV66: $i,SV5: $i] :
      ( ( ~ ( subset @ SV5 @ SV66 )
        | ! [SY315: $i] :
            ( ( in @ SY315 @ SV5 )
            | ( subset @ SV5 @ ( set_difference @ SV66 @ ( singleton @ SY315 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[393]) ).

thf(476,plain,
    ! [SV67: $i,SV6: $i] :
      ( ( ~ ( in @ SV6 @ SV67 )
        | ( subset @ SV6 @ ( union @ SV67 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[394]) ).

thf(477,plain,
    ! [SV68: $i,SV7: $i] :
      ( ( ! [SY316: $i,SY317: $i] :
            ( ( SV7 = SY317 )
            | ( SV7 = SY316 )
            | ( ( unordered_pair @ SV7 @ SV68 )
             != ( unordered_pair @ SY316 @ SY317 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[395]) ).

thf(478,plain,
    ! [SV69: $i,SV8: $i] :
      ( ( ~ ( subset @ SV8 @ SV69 )
        | ( ( set_union2 @ SV8 @ SV69 )
          = SV69 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[396]) ).

thf(479,plain,
    ! [SV70: $i,SV9: $i] :
      ( ( subset @ ( set_intersection2 @ SV9 @ SV70 ) @ SV9 )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[397]) ).

thf(480,plain,
    ! [SV71: $i,SV10: $i] :
      ( ( ! [SY318: $i] :
            ( ~ ( subset @ SV10 @ SV71 )
            | ~ ( subset @ SV10 @ SY318 )
            | ( subset @ SV10 @ ( set_intersection2 @ SV71 @ SY318 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[398]) ).

thf(481,plain,
    ! [SV72: $i,SV11: $i] :
      ( ( ! [SY319: $i] :
            ( ~ ( subset @ SV11 @ SV72 )
            | ~ ( subset @ SV72 @ SY319 )
            | ( subset @ SV11 @ SY319 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[399]) ).

thf(482,plain,
    ! [SV73: $i,SV12: $i] :
      ( ( ~ ( subset @ SV12 @ SV73 )
        | ! [SY320: $i] : ( subset @ ( set_intersection2 @ SV12 @ SY320 ) @ ( set_intersection2 @ SV73 @ SY320 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[400]) ).

thf(483,plain,
    ! [SV74: $i,SV13: $i] :
      ( ( ~ ( subset @ SV13 @ SV74 )
        | ( ( set_intersection2 @ SV13 @ SV74 )
          = SV13 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[401]) ).

thf(484,plain,
    ! [SV75: $i,SV15: $i] :
      ( ( ~ ( subset @ SV15 @ SV75 )
        | ! [SY321: $i] : ( subset @ ( set_difference @ SV15 @ SY321 ) @ ( set_difference @ SV75 @ SY321 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[403]) ).

thf(485,plain,
    ! [SV76: $i,SV16: $i] :
      ( ( subset @ ( set_difference @ SV16 @ SV76 ) @ SV16 )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[404]) ).

thf(486,plain,
    ! [SV77: $i,SV17: $i] :
      ( ( ( set_union2 @ SV17 @ ( set_difference @ SV77 @ SV17 ) )
        = ( set_union2 @ SV17 @ SV77 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[405]) ).

thf(487,plain,
    ! [SV18: $i] :
      ( ( ( ~ ( subset @ SV18 @ empty_set ) )
        = $true )
      | ( ( SV18 = empty_set )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[406]) ).

thf(488,plain,
    ! [SV78: $i,SV19: $i] :
      ( ( ( set_difference @ ( set_union2 @ SV19 @ SV78 ) @ SV78 )
        = ( set_difference @ SV19 @ SV78 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[407]) ).

thf(489,plain,
    ! [SV79: $i,SV20: $i] :
      ( ( ~ ( subset @ SV20 @ SV79 )
        | ( SV79
          = ( set_union2 @ SV20 @ ( set_difference @ SV79 @ SV20 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[408]) ).

thf(490,plain,
    ! [SV80: $i,SV21: $i] :
      ( ( ~ ( in @ SV21 @ SV80 )
        | ( ( set_union2 @ ( singleton @ SV21 ) @ SV80 )
          = SV80 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[409]) ).

thf(491,plain,
    ! [SV81: $i,SV22: $i] :
      ( ( ( set_difference @ SV22 @ ( set_difference @ SV22 @ SV81 ) )
        = ( set_intersection2 @ SV22 @ SV81 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[410]) ).

thf(492,plain,
    ! [SV23: $i,SV82: $i] :
      ( ( ~ ( proper_subset @ SV82 @ SV23 )
        | ~ ( subset @ SV23 @ SV82 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[411]) ).

thf(493,plain,
    ! [SV24: $i,SV83: $i] :
      ( ( ! [SY322: $i] :
            ( ~ ( disjoint @ SV83 @ SY322 )
            | ~ ( subset @ SV24 @ SV83 )
            | ( disjoint @ SV24 @ SY322 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[412]) ).

thf(494,plain,
    ! [SV84: $i,SV26: $i] :
      ( ( ~ ( subset @ ( singleton @ SV26 ) @ ( singleton @ SV84 ) )
        | ( SV26 = SV84 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[414]) ).

thf(495,plain,
    ! [SV85: $i,SV27: $i] :
      ( ( subset @ SV27 @ ( set_union2 @ SV27 @ SV85 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[415]) ).

thf(496,plain,
    ! [SV86: $i,SV28: $i] :
      ( ( ! [SY323: $i] :
            ( ~ ( subset @ SV28 @ SV86 )
            | ~ ( subset @ SY323 @ SV86 )
            | ( subset @ ( set_union2 @ SV28 @ SY323 ) @ SV86 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[416]) ).

thf(497,plain,
    ! [SV87: $i,SV29: $i] :
      ( ( ! [SY324: $i] :
            ( ( singleton @ SV29 )
           != ( unordered_pair @ SV87 @ SY324 ) )
        | ( SV29 = SV87 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[417]) ).

thf(498,plain,
    ! [SV88: $i,SV30: $i] :
      ( ( ~ ( in @ SV30 @ SV88 )
        | ( subset @ SV30 @ ( union @ SV88 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[418]) ).

thf(499,plain,
    ! [SV89: $i,SV32: $i] :
      ( ( ! [SY325: $i] :
            ( ( ( singleton @ SV32 )
             != ( unordered_pair @ SV89 @ SY325 ) )
            | ( SV89 = SY325 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[420]) ).

thf(500,plain,
    ! [SV90: $i,SV33: $i] :
      ( ( ~ ( in @ SV33 @ SV90 )
        | ~ ( in @ SV90 @ SV33 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[421]) ).

thf(501,plain,
    ! [SV91: $i,SV34: $i] :
      ( ( ~ ( proper_subset @ SV34 @ SV91 )
        | ~ ( proper_subset @ SV91 @ SV34 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[422]) ).

thf(502,plain,
    ! [SV92: $i,SV35: $i] :
      ( ( ( unordered_pair @ SV35 @ SV92 )
        = ( unordered_pair @ SV92 @ SV35 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[423]) ).

thf(503,plain,
    ! [SV93: $i,SV36: $i] :
      ( ( ( set_union2 @ SV36 @ SV93 )
        = ( set_union2 @ SV93 @ SV36 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[424]) ).

thf(504,plain,
    ! [SV94: $i,SV37: $i] :
      ( ( ( set_intersection2 @ SV37 @ SV94 )
        = ( set_intersection2 @ SV94 @ SV37 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[425]) ).

thf(505,plain,
    ! [SV95: $i,SV38: $i] :
      ( ( ( ordered_pair @ SV38 @ SV95 )
        = ( unordered_pair @ ( unordered_pair @ SV38 @ SV95 ) @ ( singleton @ SV38 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[426]) ).

thf(506,plain,
    ! [SV96: $i,SV39: $i] :
      ( ( ~ ( empty @ ( ordered_pair @ SV39 @ SV96 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[427]) ).

thf(507,plain,
    ! [SV40: $i] :
      ( ( ( empty @ SV40 )
        = $true )
      | ( ( ! [SY253: $i] :
              ~ ( empty @ ( set_union2 @ SV40 @ SY253 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[428]) ).

thf(508,plain,
    ! [SV41: $i] :
      ( ( ( empty @ SV41 )
        = $true )
      | ( ( ! [SY254: $i] :
              ~ ( empty @ ( set_union2 @ SY254 @ SV41 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[429]) ).

thf(509,plain,
    ! [SV44: $i] :
      ( ( proper_subset @ SV44 @ SV44 )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[432]) ).

thf(510,plain,
    ! [SV97: $i,SV46: $i] :
      ( ( ~ ( disjoint @ SV46 @ SV97 )
        | ( disjoint @ SV97 @ SV46 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[435]) ).

thf(511,plain,
    ! [SV51: $i] :
      ( ( ( ~ ( empty @ SV51 ) )
        = $true )
      | ( ( SV51 = empty_set )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[440]) ).

thf(512,plain,
    ! [SV52: $i,SV98: $i] :
      ( ( ~ ( empty @ SV98 )
        | ~ ( in @ SV52 @ SV98 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[441]) ).

thf(513,plain,
    ! [SV99: $i,SV53: $i] :
      ( ( ( SV53 = SV99 )
        | ~ ( empty @ SV53 )
        | ~ ( empty @ SV99 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[442]) ).

thf(514,plain,
    ! [SV54: $i] :
      ( ( ~ ! [SY258: $i,SY259: $i] :
              ( ~ ( in @ SV54 @ SY259 )
              | ~ ( in @ SY258 @ SY259 )
              | ( subset @ ( unordered_pair @ SV54 @ SY258 ) @ SY259 ) )
        | ~ ~ ( ~ ! [SY260: $i,SY261: $i] :
                    ( ~ ( subset @ ( unordered_pair @ SV54 @ SY260 ) @ SY261 )
                    | ( in @ SV54 @ SY261 ) )
              | ~ ! [SY262: $i,SY263: $i] :
                    ( ~ ( subset @ ( unordered_pair @ SV54 @ SY262 ) @ SY263 )
                    | ( in @ SY262 @ SY263 ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[443]) ).

thf(515,plain,
    ! [SV55: $i] :
      ( ( ~ ! [SY264: $i,SY265: $i] :
              ( ~ ( ~ ( ~ ( in @ ( sK8_D @ SY265 @ SY264 @ SV55 ) @ SV55 )
                      | ( in @ ( sK8_D @ SY265 @ SY264 @ SV55 ) @ SY264 )
                      | ~ ( in @ ( sK8_D @ SY265 @ SY264 @ SV55 ) @ SY265 ) )
                  | ~ ~ ( ~ ( ( in @ ( sK8_D @ SY265 @ SY264 @ SV55 ) @ SV55 )
                            | ( in @ ( sK8_D @ SY265 @ SY264 @ SV55 ) @ SY265 ) )
                        | ~ ( ~ ( in @ ( sK8_D @ SY265 @ SY264 @ SV55 ) @ SY264 )
                            | ( in @ ( sK8_D @ SY265 @ SY264 @ SV55 ) @ SY265 ) ) ) )
              | ( SY265
                = ( set_difference @ SV55 @ SY264 ) ) )
        | ~ ! [SY266: $i,SY267: $i] :
              ( ( SY267
               != ( set_difference @ SV55 @ SY266 ) )
              | ~ ( ~ ! [SY268: $i] :
                        ( ~ ( in @ SY268 @ SV55 )
                        | ( in @ SY268 @ SY266 )
                        | ( in @ SY268 @ SY267 ) )
                  | ~ ~ ( ~ ! [SY269: $i] :
                              ( ~ ( in @ SY269 @ SY267 )
                              | ( in @ SY269 @ SV55 ) )
                        | ~ ! [SX3: $i] :
                              ( ~ ( in @ SX3 @ SY267 )
                              | ~ ( in @ SX3 @ SY266 ) ) ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[444]) ).

thf(516,plain,
    ! [SV56: $i] :
      ( ( ~ ! [SY271: $i,SY272: $i] :
              ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK19_D @ SY272 @ SY271 @ SV56 ) @ SY272 )
                            | ~ ( in @ ( sK19_D @ SY272 @ SY271 @ SV56 ) @ SV56 ) )
                        | ~ ( ~ ( in @ ( sK19_D @ SY272 @ SY271 @ SV56 ) @ SY272 )
                            | ~ ( in @ ( sK19_D @ SY272 @ SY271 @ SV56 ) @ SY271 ) ) )
                  | ~ ( ( in @ ( sK19_D @ SY272 @ SY271 @ SV56 ) @ SY272 )
                      | ( in @ ( sK19_D @ SY272 @ SY271 @ SV56 ) @ SV56 )
                      | ( in @ ( sK19_D @ SY272 @ SY271 @ SV56 ) @ SY271 ) ) )
              | ( SY272
                = ( set_union2 @ SV56 @ SY271 ) ) )
        | ~ ! [SY273: $i,SY274: $i] :
              ( ( SY274
               != ( set_union2 @ SV56 @ SY273 ) )
              | ~ ( ~ ! [SY275: $i] :
                        ( ~ ( in @ SY275 @ SY274 )
                        | ( in @ SY275 @ SV56 )
                        | ( in @ SY275 @ SY273 ) )
                  | ~ ~ ( ~ ! [SY276: $i] :
                              ( ~ ( in @ SY276 @ SV56 )
                              | ( in @ SY276 @ SY274 ) )
                        | ~ ! [SX3: $i] :
                              ( ~ ( in @ SX3 @ SY273 )
                              | ( in @ SX3 @ SY274 ) ) ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[445]) ).

thf(517,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( disjoint @ SX0 @ SX1 )
            | ( in @ ( sK24_C @ SX1 @ SX0 ) @ ( set_intersection2 @ SX0 @ SX1 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[446]) ).

thf(518,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ! [SX2: $i] :
                ~ ( in @ SX2 @ ( set_intersection2 @ SX0 @ SX1 ) )
            | ~ ( disjoint @ SX0 @ SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[446]) ).

thf(519,plain,
    ( ( ~ ( in @ ( ordered_pair @ sK1_A @ sK2_SY194 ) @ ( cartesian_product2 @ sK3_SY197 @ sK4_SY199 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[447]) ).

thf(520,plain,
    ( ( ~ ( ~ ( in @ sK1_A @ sK3_SY197 )
          | ~ ( in @ sK2_SY194 @ sK4_SY199 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[447]) ).

thf(521,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( ( set_difference @ SX0 @ SX1 )
             != empty_set )
            | ( subset @ SX0 @ SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[448]) ).

thf(522,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( subset @ SX0 @ SX1 )
            | ( ( set_difference @ SX0 @ SX1 )
              = empty_set ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[448]) ).

thf(523,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( ( set_intersection2 @ SX0 @ SX1 )
             != empty_set )
            | ( disjoint @ SX0 @ SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[449]) ).

thf(524,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( disjoint @ SX0 @ SX1 )
            | ( ( set_intersection2 @ SX0 @ SX1 )
              = empty_set ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[449]) ).

thf(525,plain,
    ! [SV57: $i] :
      ( ( ~ ! [SY278: $i,SY279: $i] :
              ( ~ ( ~ ( ~ ( in @ ( sK12_D @ SY279 @ SY278 @ SV57 ) @ SV57 )
                      | ~ ( in @ ( sK12_D @ SY279 @ SY278 @ SV57 ) @ SY278 )
                      | ~ ( in @ ( sK12_D @ SY279 @ SY278 @ SV57 ) @ SY279 ) )
                  | ~ ~ ( ~ ( ( in @ ( sK12_D @ SY279 @ SY278 @ SV57 ) @ SV57 )
                            | ( in @ ( sK12_D @ SY279 @ SY278 @ SV57 ) @ SY279 ) )
                        | ~ ( ( in @ ( sK12_D @ SY279 @ SY278 @ SV57 ) @ SY278 )
                            | ( in @ ( sK12_D @ SY279 @ SY278 @ SV57 ) @ SY279 ) ) ) )
              | ( SY279
                = ( set_intersection2 @ SV57 @ SY278 ) ) )
        | ~ ! [SY280: $i,SY281: $i] :
              ( ( SY281
               != ( set_intersection2 @ SV57 @ SY280 ) )
              | ~ ( ~ ! [SY282: $i] :
                        ( ~ ( in @ SY282 @ SV57 )
                        | ~ ( in @ SY282 @ SY280 )
                        | ( in @ SY282 @ SY281 ) )
                  | ~ ~ ( ~ ! [SY283: $i] :
                              ( ~ ( in @ SY283 @ SY281 )
                              | ( in @ SY283 @ SV57 ) )
                        | ~ ! [SX3: $i] :
                              ( ~ ( in @ SX3 @ SY281 )
                              | ( in @ SX3 @ SY280 ) ) ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[450]) ).

thf(526,plain,
    ( ( ~ ! [SX0: $i] :
            ( ( in @ ( sK22_B @ SX0 ) @ SX0 )
            | ( SX0 = empty_set ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[451]) ).

thf(527,plain,
    ( ( ~ ! [SX0: $i] :
            ( ( SX0 != empty_set )
            | ! [SX1: $i] :
                ~ ( in @ SX1 @ SX0 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[451]) ).

thf(528,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( ~ ( ~ ( in @ ( sK21_C @ SX1 @ SX0 ) @ SX1 )
                    | ~ ( subset @ ( sK21_C @ SX1 @ SX0 ) @ SX0 ) )
                | ~ ( ( in @ ( sK21_C @ SX1 @ SX0 ) @ SX1 )
                    | ( subset @ ( sK21_C @ SX1 @ SX0 ) @ SX0 ) ) )
            | ( SX1
              = ( powerset @ SX0 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[452]) ).

thf(529,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)],[452]) ).

thf(530,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( ( set_difference @ SX0 @ SX1 )
             != empty_set )
            | ( subset @ SX0 @ SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[453]) ).

thf(531,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( subset @ SX0 @ SX1 )
            | ( ( set_difference @ SX0 @ SX1 )
              = empty_set ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[453]) ).

thf(532,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( ( set_difference @ SX0 @ SX1 )
             != SX0 )
            | ( disjoint @ SX0 @ SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[454]) ).

thf(533,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( disjoint @ SX0 @ SX1 )
            | ( ( set_difference @ SX0 @ SX1 )
              = SX0 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[454]) ).

thf(534,plain,
    ! [SV58: $i] :
      ( ( ~ ! [SY285: $i,SY286: $i] :
              ( ~ ( ~ ( ! [SY287: $i,SY288: $i] :
                          ( ~ ( in @ SY287 @ SV58 )
                          | ~ ( in @ SY288 @ SY285 )
                          | ( ( sK16_D @ SY286 @ SY285 @ SV58 )
                           != ( ordered_pair @ SY287 @ SY288 ) ) )
                      | ~ ( in @ ( sK16_D @ SY286 @ SY285 @ SV58 ) @ SY286 ) )
                  | ~ ( ~ ( ~ ~ ( ~ ( in @ ( sK17_SY205 @ SY286 @ SY285 @ SV58 ) @ SV58 )
                                | ~ ( in @ ( sK18_SY207 @ SY286 @ SY285 @ SV58 ) @ SY285 ) )
                          | ( ( sK16_D @ SY286 @ SY285 @ SV58 )
                           != ( ordered_pair @ ( sK17_SY205 @ SY286 @ SY285 @ SV58 ) @ ( sK18_SY207 @ SY286 @ SY285 @ SV58 ) ) ) )
                      | ( in @ ( sK16_D @ SY286 @ SY285 @ SV58 ) @ SY286 ) ) )
              | ( SY286
                = ( cartesian_product2 @ SV58 @ SY285 ) ) )
        | ~ ! [SY289: $i,SY290: $i] :
              ( ( SY290
               != ( cartesian_product2 @ SV58 @ SY289 ) )
              | ~ ( ~ ! [SY291: $i] :
                        ( ! [SY292: $i,SY293: $i] :
                            ( ~ ( in @ SY292 @ SV58 )
                            | ~ ( in @ SY293 @ SY289 )
                            | ( SY291
                             != ( ordered_pair @ SY292 @ SY293 ) ) )
                        | ( in @ SY291 @ SY290 ) )
                  | ~ ! [SY294: $i] :
                        ( ~ ( in @ SY294 @ SY290 )
                        | ~ ( ~ ~ ( ~ ( in @ ( sK14_E @ SY294 @ SY290 @ SY289 @ SV58 ) @ SV58 )
                                  | ~ ( in @ ( sK15_SY202 @ SY294 @ SY290 @ SY289 @ SV58 ) @ SY289 ) )
                            | ( SY294
                             != ( ordered_pair @ ( sK14_E @ SY294 @ SY290 @ SY289 @ SV58 ) @ ( sK15_SY202 @ SY294 @ SY290 @ SY289 @ SV58 ) ) ) ) ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[455]) ).

thf(535,plain,
    ! [SV100: $i,SV59: $i] :
      ( ( ~ ( ~ ! [SY326: $i,SY327: $i] :
                  ( ~ ( in @ SV59 @ SY326 )
                  | ~ ( in @ SV100 @ SY327 )
                  | ( in @ ( ordered_pair @ SV59 @ SV100 ) @ ( cartesian_product2 @ SY326 @ SY327 ) ) )
            | ~ ~ ( ~ ! [SY328: $i] :
                        ( ! [SY329: $i] :
                            ~ ( in @ ( ordered_pair @ SV59 @ SV100 ) @ ( cartesian_product2 @ SY328 @ SY329 ) )
                        | ( in @ SV59 @ SY328 ) )
                  | ~ ! [SY330: $i,SY331: $i] :
                        ( ~ ( in @ ( ordered_pair @ SV59 @ SV100 ) @ ( cartesian_product2 @ SY330 @ SY331 ) )
                        | ( in @ SV100 @ SY331 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[456]) ).

thf(536,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( ~ ( ( ( sK23_C @ SX1 @ SX0 )
                     != SX0 )
                    | ~ ( in @ ( sK23_C @ SX1 @ SX0 ) @ SX1 ) )
                | ~ ( ( ( sK23_C @ SX1 @ SX0 )
                      = SX0 )
                    | ( in @ ( sK23_C @ SX1 @ SX0 ) @ SX1 ) ) )
            | ( SX1
              = ( singleton @ SX0 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[457]) ).

thf(537,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)],[457]) ).

thf(538,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( ~ ( in @ ( sK13_C @ SX1 @ SX0 ) @ SX0 )
                | ~ ~ ( in @ ( sK13_C @ SX1 @ SX0 ) @ SX1 ) )
            | ( subset @ SX0 @ SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[458]) ).

thf(539,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( subset @ SX0 @ SX1 )
            | ! [SX2: $i] :
                ( ~ ( in @ SX2 @ SX0 )
                | ( in @ SX2 @ SX1 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[458]) ).

thf(540,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( disjoint @ SX0 @ SX1 )
            | ~ ( ~ ( in @ ( sK25_C @ SX1 @ SX0 ) @ SX0 )
                | ~ ( in @ ( sK25_C @ SX1 @ SX0 ) @ SX1 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[459]) ).

thf(541,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ! [SX2: $i] :
                ( ~ ( in @ SX2 @ SX0 )
                | ~ ( in @ SX2 @ SX1 ) )
            | ~ ( disjoint @ SX0 @ SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[459]) ).

thf(542,plain,
    ! [SV60: $i] :
      ( ( ~ ! [SY302: $i,SY303: $i] :
              ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK20_D @ SY303 @ SY302 @ SV60 ) @ SY303 )
                            | ( ( sK20_D @ SY303 @ SY302 @ SV60 )
                             != SV60 ) )
                        | ~ ( ~ ( in @ ( sK20_D @ SY303 @ SY302 @ SV60 ) @ SY303 )
                            | ( ( sK20_D @ SY303 @ SY302 @ SV60 )
                             != SY302 ) ) )
                  | ~ ( ( in @ ( sK20_D @ SY303 @ SY302 @ SV60 ) @ SY303 )
                      | ( ( sK20_D @ SY303 @ SY302 @ SV60 )
                        = SV60 )
                      | ( ( sK20_D @ SY303 @ SY302 @ SV60 )
                        = SY302 ) ) )
              | ( SY303
                = ( unordered_pair @ SV60 @ SY302 ) ) )
        | ~ ! [SY304: $i,SY305: $i] :
              ( ( SY305
               != ( unordered_pair @ SV60 @ SY304 ) )
              | ~ ( ~ ! [SY306: $i] :
                        ( ~ ( in @ SY306 @ SY305 )
                        | ( SY306 = SV60 )
                        | ( SY306 = SY304 ) )
                  | ~ ~ ( ~ ! [SY307: $i] :
                              ( ( SY307 != SV60 )
                              | ( in @ SY307 @ SY305 ) )
                        | ~ ! [SX3: $i] :
                              ( ( SX3 != SY304 )
                              | ( in @ SX3 @ SY305 ) ) ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[460]) ).

thf(543,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( subset @ SX0 @ ( singleton @ SX1 ) )
            | ( SX0 = empty_set )
            | ( SX0
              = ( singleton @ SX1 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[461]) ).

thf(544,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)],[461]) ).

thf(545,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( in @ SX0 @ SX1 )
            | ( subset @ ( singleton @ SX0 ) @ SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[462]) ).

thf(546,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( subset @ ( singleton @ SX0 ) @ SX1 )
            | ( in @ SX0 @ SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[462]) ).

thf(547,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( subset @ SX0 @ ( singleton @ SX1 ) )
            | ( SX0 = empty_set )
            | ( SX0
              = ( singleton @ SX1 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[463]) ).

thf(548,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)],[463]) ).

thf(549,plain,
    ! [SV101: $i,SV61: $i] :
      ( ( ~ ( ~ ! [SY332: $i] :
                  ( ! [SY333: $i] :
                      ( ( ordered_pair @ SV61 @ SV101 )
                     != ( ordered_pair @ SY332 @ SY333 ) )
                  | ( SV61 = SY332 ) )
            | ~ ! [SY334: $i,SY335: $i] :
                  ( ( ( ordered_pair @ SV61 @ SV101 )
                   != ( ordered_pair @ SY334 @ SY335 ) )
                  | ( SV101 = SY335 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[464]) ).

thf(550,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( subset @ SX0 @ SX1 )
            | ~ ( subset @ SX1 @ SX0 )
            | ( SX0 = SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[465]) ).

thf(551,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)],[465]) ).

thf(552,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( SX0 = SX1 )
            | ~ ( subset @ SX0 @ SX1 )
            | ( proper_subset @ SX0 @ SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[466]) ).

thf(553,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)],[466]) ).

thf(554,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( in @ SX0 @ SX1 )
            | ( subset @ ( singleton @ SX0 ) @ SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[467]) ).

thf(555,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( subset @ ( singleton @ SX0 ) @ SX1 )
            | ( in @ SX0 @ SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[467]) ).

thf(556,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( ~ ( ! [SX2: $i] :
                        ( ~ ( in @ ( sK10_C @ SX1 @ SX0 ) @ SX2 )
                        | ~ ( in @ SX2 @ SX0 ) )
                    | ~ ( in @ ( sK10_C @ SX1 @ SX0 ) @ SX1 ) )
                | ~ ( ~ ( ~ ( in @ ( sK10_C @ SX1 @ SX0 ) @ ( sK11_SY201 @ SX1 @ SX0 ) )
                        | ~ ( in @ ( sK11_SY201 @ SX1 @ SX0 ) @ SX0 ) )
                    | ( in @ ( sK10_C @ SX1 @ SX0 ) @ SX1 ) ) )
            | ( SX1
              = ( union @ SX0 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[468]) ).

thf(557,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 @ ( sK9_D @ SX2 @ SX1 @ SX0 ) )
                          | ~ ( in @ ( sK9_D @ SX2 @ SX1 @ SX0 ) @ SX0 ) ) ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[468]) ).

thf(558,plain,
    ! [SV62: $i,SV102: $i] :
      ( ( ~ ( ~ ( ~ ( in @ ( sK5_C @ SV102 @ SV62 ) @ SV62 )
                | ~ ( in @ ( sK5_C @ SV102 @ SV62 ) @ SV102 ) )
            | ~ ( ( in @ ( sK5_C @ SV102 @ SV62 ) @ SV62 )
                | ( in @ ( sK5_C @ SV102 @ SV62 ) @ SV102 ) ) )
        | ( SV62 = SV102 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[469]) ).

thf(559,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( ( set_difference @ SX0 @ ( singleton @ SX1 ) )
             != SX0 )
            | ~ ( in @ SX1 @ SX0 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[470]) ).

thf(560,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( in @ SX1 @ SX0 )
            | ( ( set_difference @ SX0 @ ( singleton @ SX1 ) )
              = SX0 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[470]) ).

thf(561,plain,
    ! [SV63: $i,SV2: $i] :
      ( ( ( ~ ( in @ SV2 @ SV63 ) )
        = $true )
      | ( ( ( set_union2 @ ( singleton @ SV2 ) @ SV63 )
          = SV63 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[472]) ).

thf(562,plain,
    ! [SV64: $i,SV3: $i] :
      ( ( ( ~ ( disjoint @ ( singleton @ SV3 ) @ SV64 ) )
        = $true )
      | ( ( ~ ( in @ SV3 @ SV64 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[473]) ).

thf(563,plain,
    ! [SV65: $i,SV4: $i] :
      ( ( ( in @ SV4 @ SV65 )
        = $true )
      | ( ( disjoint @ ( singleton @ SV4 ) @ SV65 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[474]) ).

thf(564,plain,
    ! [SV66: $i,SV5: $i] :
      ( ( ( ~ ( subset @ SV5 @ SV66 ) )
        = $true )
      | ( ( ! [SY315: $i] :
              ( ( in @ SY315 @ SV5 )
              | ( subset @ SV5 @ ( set_difference @ SV66 @ ( singleton @ SY315 ) ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[475]) ).

thf(565,plain,
    ! [SV67: $i,SV6: $i] :
      ( ( ( ~ ( in @ SV6 @ SV67 ) )
        = $true )
      | ( ( subset @ SV6 @ ( union @ SV67 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[476]) ).

thf(566,plain,
    ! [SV68: $i,SV103: $i,SV7: $i] :
      ( ( ! [SY336: $i] :
            ( ( SV7 = SY336 )
            | ( SV7 = SV103 )
            | ( ( unordered_pair @ SV7 @ SV68 )
             != ( unordered_pair @ SV103 @ SY336 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[477]) ).

thf(567,plain,
    ! [SV69: $i,SV8: $i] :
      ( ( ( ~ ( subset @ SV8 @ SV69 ) )
        = $true )
      | ( ( ( set_union2 @ SV8 @ SV69 )
          = SV69 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[478]) ).

thf(568,plain,
    ! [SV104: $i,SV71: $i,SV10: $i] :
      ( ( ~ ( subset @ SV10 @ SV71 )
        | ~ ( subset @ SV10 @ SV104 )
        | ( subset @ SV10 @ ( set_intersection2 @ SV71 @ SV104 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[480]) ).

thf(569,plain,
    ! [SV105: $i,SV72: $i,SV11: $i] :
      ( ( ~ ( subset @ SV11 @ SV72 )
        | ~ ( subset @ SV72 @ SV105 )
        | ( subset @ SV11 @ SV105 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[481]) ).

thf(570,plain,
    ! [SV73: $i,SV12: $i] :
      ( ( ( ~ ( subset @ SV12 @ SV73 ) )
        = $true )
      | ( ( ! [SY320: $i] : ( subset @ ( set_intersection2 @ SV12 @ SY320 ) @ ( set_intersection2 @ SV73 @ SY320 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[482]) ).

thf(571,plain,
    ! [SV74: $i,SV13: $i] :
      ( ( ( ~ ( subset @ SV13 @ SV74 ) )
        = $true )
      | ( ( ( set_intersection2 @ SV13 @ SV74 )
          = SV13 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[483]) ).

thf(572,plain,
    ! [SV75: $i,SV15: $i] :
      ( ( ( ~ ( subset @ SV15 @ SV75 ) )
        = $true )
      | ( ( ! [SY321: $i] : ( subset @ ( set_difference @ SV15 @ SY321 ) @ ( set_difference @ SV75 @ SY321 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[484]) ).

thf(573,plain,
    ! [SV18: $i] :
      ( ( ( subset @ SV18 @ empty_set )
        = $false )
      | ( ( SV18 = empty_set )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[487]) ).

thf(574,plain,
    ! [SV79: $i,SV20: $i] :
      ( ( ( ~ ( subset @ SV20 @ SV79 ) )
        = $true )
      | ( ( SV79
          = ( set_union2 @ SV20 @ ( set_difference @ SV79 @ SV20 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[489]) ).

thf(575,plain,
    ! [SV80: $i,SV21: $i] :
      ( ( ( ~ ( in @ SV21 @ SV80 ) )
        = $true )
      | ( ( ( set_union2 @ ( singleton @ SV21 ) @ SV80 )
          = SV80 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[490]) ).

thf(576,plain,
    ! [SV23: $i,SV82: $i] :
      ( ( ( ~ ( proper_subset @ SV82 @ SV23 ) )
        = $true )
      | ( ( ~ ( subset @ SV23 @ SV82 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[492]) ).

thf(577,plain,
    ! [SV24: $i,SV106: $i,SV83: $i] :
      ( ( ~ ( disjoint @ SV83 @ SV106 )
        | ~ ( subset @ SV24 @ SV83 )
        | ( disjoint @ SV24 @ SV106 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[493]) ).

thf(578,plain,
    ! [SV84: $i,SV26: $i] :
      ( ( ( ~ ( subset @ ( singleton @ SV26 ) @ ( singleton @ SV84 ) ) )
        = $true )
      | ( ( SV26 = SV84 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[494]) ).

thf(579,plain,
    ! [SV107: $i,SV86: $i,SV28: $i] :
      ( ( ~ ( subset @ SV28 @ SV86 )
        | ~ ( subset @ SV107 @ SV86 )
        | ( subset @ ( set_union2 @ SV28 @ SV107 ) @ SV86 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[496]) ).

thf(580,plain,
    ! [SV87: $i,SV29: $i] :
      ( ( ( ! [SY324: $i] :
              ( ( singleton @ SV29 )
             != ( unordered_pair @ SV87 @ SY324 ) ) )
        = $true )
      | ( ( SV29 = SV87 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[497]) ).

thf(581,plain,
    ! [SV88: $i,SV30: $i] :
      ( ( ( ~ ( in @ SV30 @ SV88 ) )
        = $true )
      | ( ( subset @ SV30 @ ( union @ SV88 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[498]) ).

thf(582,plain,
    ! [SV108: $i,SV89: $i,SV32: $i] :
      ( ( ( ( singleton @ SV32 )
         != ( unordered_pair @ SV89 @ SV108 ) )
        | ( SV89 = SV108 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[499]) ).

thf(583,plain,
    ! [SV90: $i,SV33: $i] :
      ( ( ( ~ ( in @ SV33 @ SV90 ) )
        = $true )
      | ( ( ~ ( in @ SV90 @ SV33 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[500]) ).

thf(584,plain,
    ! [SV91: $i,SV34: $i] :
      ( ( ( ~ ( proper_subset @ SV34 @ SV91 ) )
        = $true )
      | ( ( ~ ( proper_subset @ SV91 @ SV34 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[501]) ).

thf(585,plain,
    ! [SV96: $i,SV39: $i] :
      ( ( empty @ ( ordered_pair @ SV39 @ SV96 ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[506]) ).

thf(586,plain,
    ! [SV109: $i,SV40: $i] :
      ( ( ( ~ ( empty @ ( set_union2 @ SV40 @ SV109 ) ) )
        = $true )
      | ( ( empty @ SV40 )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[507]) ).

thf(587,plain,
    ! [SV41: $i,SV110: $i] :
      ( ( ( ~ ( empty @ ( set_union2 @ SV110 @ SV41 ) ) )
        = $true )
      | ( ( empty @ SV41 )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[508]) ).

thf(588,plain,
    ! [SV97: $i,SV46: $i] :
      ( ( ( ~ ( disjoint @ SV46 @ SV97 ) )
        = $true )
      | ( ( disjoint @ SV97 @ SV46 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[510]) ).

thf(589,plain,
    ! [SV51: $i] :
      ( ( ( empty @ SV51 )
        = $false )
      | ( ( SV51 = empty_set )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[511]) ).

thf(590,plain,
    ! [SV52: $i,SV98: $i] :
      ( ( ( ~ ( empty @ SV98 ) )
        = $true )
      | ( ( ~ ( in @ SV52 @ SV98 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[512]) ).

thf(591,plain,
    ! [SV99: $i,SV53: $i] :
      ( ( ( ( SV53 = SV99 )
          | ~ ( empty @ SV53 ) )
        = $true )
      | ( ( ~ ( empty @ SV99 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[513]) ).

thf(592,plain,
    ! [SV54: $i] :
      ( ( ~ ! [SY258: $i,SY259: $i] :
              ( ~ ( in @ SV54 @ SY259 )
              | ~ ( in @ SY258 @ SY259 )
              | ( subset @ ( unordered_pair @ SV54 @ SY258 ) @ SY259 ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[514]) ).

thf(593,plain,
    ! [SV54: $i] :
      ( ( ~ ~ ( ~ ! [SY260: $i,SY261: $i] :
                    ( ~ ( subset @ ( unordered_pair @ SV54 @ SY260 ) @ SY261 )
                    | ( in @ SV54 @ SY261 ) )
              | ~ ! [SY262: $i,SY263: $i] :
                    ( ~ ( subset @ ( unordered_pair @ SV54 @ SY262 ) @ SY263 )
                    | ( in @ SY262 @ SY263 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[514]) ).

thf(594,plain,
    ! [SV55: $i] :
      ( ( ~ ! [SY264: $i,SY265: $i] :
              ( ~ ( ~ ( ~ ( in @ ( sK8_D @ SY265 @ SY264 @ SV55 ) @ SV55 )
                      | ( in @ ( sK8_D @ SY265 @ SY264 @ SV55 ) @ SY264 )
                      | ~ ( in @ ( sK8_D @ SY265 @ SY264 @ SV55 ) @ SY265 ) )
                  | ~ ~ ( ~ ( ( in @ ( sK8_D @ SY265 @ SY264 @ SV55 ) @ SV55 )
                            | ( in @ ( sK8_D @ SY265 @ SY264 @ SV55 ) @ SY265 ) )
                        | ~ ( ~ ( in @ ( sK8_D @ SY265 @ SY264 @ SV55 ) @ SY264 )
                            | ( in @ ( sK8_D @ SY265 @ SY264 @ SV55 ) @ SY265 ) ) ) )
              | ( SY265
                = ( set_difference @ SV55 @ SY264 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[515]) ).

thf(595,plain,
    ! [SV55: $i] :
      ( ( ~ ! [SY266: $i,SY267: $i] :
              ( ( SY267
               != ( set_difference @ SV55 @ SY266 ) )
              | ~ ( ~ ! [SY268: $i] :
                        ( ~ ( in @ SY268 @ SV55 )
                        | ( in @ SY268 @ SY266 )
                        | ( in @ SY268 @ SY267 ) )
                  | ~ ~ ( ~ ! [SY269: $i] :
                              ( ~ ( in @ SY269 @ SY267 )
                              | ( in @ SY269 @ SV55 ) )
                        | ~ ! [SX3: $i] :
                              ( ~ ( in @ SX3 @ SY267 )
                              | ~ ( in @ SX3 @ SY266 ) ) ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[515]) ).

thf(596,plain,
    ! [SV56: $i] :
      ( ( ~ ! [SY271: $i,SY272: $i] :
              ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK19_D @ SY272 @ SY271 @ SV56 ) @ SY272 )
                            | ~ ( in @ ( sK19_D @ SY272 @ SY271 @ SV56 ) @ SV56 ) )
                        | ~ ( ~ ( in @ ( sK19_D @ SY272 @ SY271 @ SV56 ) @ SY272 )
                            | ~ ( in @ ( sK19_D @ SY272 @ SY271 @ SV56 ) @ SY271 ) ) )
                  | ~ ( ( in @ ( sK19_D @ SY272 @ SY271 @ SV56 ) @ SY272 )
                      | ( in @ ( sK19_D @ SY272 @ SY271 @ SV56 ) @ SV56 )
                      | ( in @ ( sK19_D @ SY272 @ SY271 @ SV56 ) @ SY271 ) ) )
              | ( SY272
                = ( set_union2 @ SV56 @ SY271 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[516]) ).

thf(597,plain,
    ! [SV56: $i] :
      ( ( ~ ! [SY273: $i,SY274: $i] :
              ( ( SY274
               != ( set_union2 @ SV56 @ SY273 ) )
              | ~ ( ~ ! [SY275: $i] :
                        ( ~ ( in @ SY275 @ SY274 )
                        | ( in @ SY275 @ SV56 )
                        | ( in @ SY275 @ SY273 ) )
                  | ~ ~ ( ~ ! [SY276: $i] :
                              ( ~ ( in @ SY276 @ SV56 )
                              | ( in @ SY276 @ SY274 ) )
                        | ~ ! [SX3: $i] :
                              ( ~ ( in @ SX3 @ SY273 )
                              | ( in @ SX3 @ SY274 ) ) ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[516]) ).

thf(598,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ( disjoint @ SX0 @ SX1 )
          | ( in @ ( sK24_C @ SX1 @ SX0 ) @ ( set_intersection2 @ SX0 @ SX1 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[517]) ).

thf(599,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ! [SX2: $i] :
              ~ ( in @ SX2 @ ( set_intersection2 @ SX0 @ SX1 ) )
          | ~ ( disjoint @ SX0 @ SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[518]) ).

thf(600,plain,
    ( ( in @ ( ordered_pair @ sK1_A @ sK2_SY194 ) @ ( cartesian_product2 @ sK3_SY197 @ sK4_SY199 ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[519]) ).

thf(601,plain,
    ( ( ~ ( in @ sK1_A @ sK3_SY197 )
      | ~ ( in @ sK2_SY194 @ sK4_SY199 ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[520]) ).

thf(602,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ( ( set_difference @ SX0 @ SX1 )
           != empty_set )
          | ( subset @ SX0 @ SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[521]) ).

thf(603,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( subset @ SX0 @ SX1 )
          | ( ( set_difference @ SX0 @ SX1 )
            = empty_set ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[522]) ).

thf(604,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ( ( set_intersection2 @ SX0 @ SX1 )
           != empty_set )
          | ( disjoint @ SX0 @ SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[523]) ).

thf(605,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( disjoint @ SX0 @ SX1 )
          | ( ( set_intersection2 @ SX0 @ SX1 )
            = empty_set ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[524]) ).

thf(606,plain,
    ! [SV57: $i] :
      ( ( ~ ! [SY278: $i,SY279: $i] :
              ( ~ ( ~ ( ~ ( in @ ( sK12_D @ SY279 @ SY278 @ SV57 ) @ SV57 )
                      | ~ ( in @ ( sK12_D @ SY279 @ SY278 @ SV57 ) @ SY278 )
                      | ~ ( in @ ( sK12_D @ SY279 @ SY278 @ SV57 ) @ SY279 ) )
                  | ~ ~ ( ~ ( ( in @ ( sK12_D @ SY279 @ SY278 @ SV57 ) @ SV57 )
                            | ( in @ ( sK12_D @ SY279 @ SY278 @ SV57 ) @ SY279 ) )
                        | ~ ( ( in @ ( sK12_D @ SY279 @ SY278 @ SV57 ) @ SY278 )
                            | ( in @ ( sK12_D @ SY279 @ SY278 @ SV57 ) @ SY279 ) ) ) )
              | ( SY279
                = ( set_intersection2 @ SV57 @ SY278 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[525]) ).

thf(607,plain,
    ! [SV57: $i] :
      ( ( ~ ! [SY280: $i,SY281: $i] :
              ( ( SY281
               != ( set_intersection2 @ SV57 @ SY280 ) )
              | ~ ( ~ ! [SY282: $i] :
                        ( ~ ( in @ SY282 @ SV57 )
                        | ~ ( in @ SY282 @ SY280 )
                        | ( in @ SY282 @ SY281 ) )
                  | ~ ~ ( ~ ! [SY283: $i] :
                              ( ~ ( in @ SY283 @ SY281 )
                              | ( in @ SY283 @ SV57 ) )
                        | ~ ! [SX3: $i] :
                              ( ~ ( in @ SX3 @ SY281 )
                              | ( in @ SX3 @ SY280 ) ) ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[525]) ).

thf(608,plain,
    ( ( ! [SX0: $i] :
          ( ( in @ ( sK22_B @ SX0 ) @ SX0 )
          | ( SX0 = empty_set ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[526]) ).

thf(609,plain,
    ( ( ! [SX0: $i] :
          ( ( SX0 != empty_set )
          | ! [SX1: $i] :
              ~ ( in @ SX1 @ SX0 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[527]) ).

thf(610,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( ~ ( ~ ( in @ ( sK21_C @ SX1 @ SX0 ) @ SX1 )
                  | ~ ( subset @ ( sK21_C @ SX1 @ SX0 ) @ SX0 ) )
              | ~ ( ( in @ ( sK21_C @ SX1 @ SX0 ) @ SX1 )
                  | ( subset @ ( sK21_C @ SX1 @ SX0 ) @ SX0 ) ) )
          | ( SX1
            = ( powerset @ SX0 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[528]) ).

thf(611,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)],[529]) ).

thf(612,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ( ( set_difference @ SX0 @ SX1 )
           != empty_set )
          | ( subset @ SX0 @ SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[530]) ).

thf(613,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( subset @ SX0 @ SX1 )
          | ( ( set_difference @ SX0 @ SX1 )
            = empty_set ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[531]) ).

thf(614,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ( ( set_difference @ SX0 @ SX1 )
           != SX0 )
          | ( disjoint @ SX0 @ SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[532]) ).

thf(615,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( disjoint @ SX0 @ SX1 )
          | ( ( set_difference @ SX0 @ SX1 )
            = SX0 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[533]) ).

thf(616,plain,
    ! [SV58: $i] :
      ( ( ~ ! [SY285: $i,SY286: $i] :
              ( ~ ( ~ ( ! [SY287: $i,SY288: $i] :
                          ( ~ ( in @ SY287 @ SV58 )
                          | ~ ( in @ SY288 @ SY285 )
                          | ( ( sK16_D @ SY286 @ SY285 @ SV58 )
                           != ( ordered_pair @ SY287 @ SY288 ) ) )
                      | ~ ( in @ ( sK16_D @ SY286 @ SY285 @ SV58 ) @ SY286 ) )
                  | ~ ( ~ ( ~ ~ ( ~ ( in @ ( sK17_SY205 @ SY286 @ SY285 @ SV58 ) @ SV58 )
                                | ~ ( in @ ( sK18_SY207 @ SY286 @ SY285 @ SV58 ) @ SY285 ) )
                          | ( ( sK16_D @ SY286 @ SY285 @ SV58 )
                           != ( ordered_pair @ ( sK17_SY205 @ SY286 @ SY285 @ SV58 ) @ ( sK18_SY207 @ SY286 @ SY285 @ SV58 ) ) ) )
                      | ( in @ ( sK16_D @ SY286 @ SY285 @ SV58 ) @ SY286 ) ) )
              | ( SY286
                = ( cartesian_product2 @ SV58 @ SY285 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[534]) ).

thf(617,plain,
    ! [SV58: $i] :
      ( ( ~ ! [SY289: $i,SY290: $i] :
              ( ( SY290
               != ( cartesian_product2 @ SV58 @ SY289 ) )
              | ~ ( ~ ! [SY291: $i] :
                        ( ! [SY292: $i,SY293: $i] :
                            ( ~ ( in @ SY292 @ SV58 )
                            | ~ ( in @ SY293 @ SY289 )
                            | ( SY291
                             != ( ordered_pair @ SY292 @ SY293 ) ) )
                        | ( in @ SY291 @ SY290 ) )
                  | ~ ! [SY294: $i] :
                        ( ~ ( in @ SY294 @ SY290 )
                        | ~ ( ~ ~ ( ~ ( in @ ( sK14_E @ SY294 @ SY290 @ SY289 @ SV58 ) @ SV58 )
                                  | ~ ( in @ ( sK15_SY202 @ SY294 @ SY290 @ SY289 @ SV58 ) @ SY289 ) )
                            | ( SY294
                             != ( ordered_pair @ ( sK14_E @ SY294 @ SY290 @ SY289 @ SV58 ) @ ( sK15_SY202 @ SY294 @ SY290 @ SY289 @ SV58 ) ) ) ) ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[534]) ).

thf(618,plain,
    ! [SV100: $i,SV59: $i] :
      ( ( ~ ! [SY326: $i,SY327: $i] :
              ( ~ ( in @ SV59 @ SY326 )
              | ~ ( in @ SV100 @ SY327 )
              | ( in @ ( ordered_pair @ SV59 @ SV100 ) @ ( cartesian_product2 @ SY326 @ SY327 ) ) )
        | ~ ~ ( ~ ! [SY328: $i] :
                    ( ! [SY329: $i] :
                        ~ ( in @ ( ordered_pair @ SV59 @ SV100 ) @ ( cartesian_product2 @ SY328 @ SY329 ) )
                    | ( in @ SV59 @ SY328 ) )
              | ~ ! [SY330: $i,SY331: $i] :
                    ( ~ ( in @ ( ordered_pair @ SV59 @ SV100 ) @ ( cartesian_product2 @ SY330 @ SY331 ) )
                    | ( in @ SV100 @ SY331 ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[535]) ).

thf(619,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( ~ ( ( ( sK23_C @ SX1 @ SX0 )
                   != SX0 )
                  | ~ ( in @ ( sK23_C @ SX1 @ SX0 ) @ SX1 ) )
              | ~ ( ( ( sK23_C @ SX1 @ SX0 )
                    = SX0 )
                  | ( in @ ( sK23_C @ SX1 @ SX0 ) @ SX1 ) ) )
          | ( SX1
            = ( singleton @ SX0 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[536]) ).

thf(620,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)],[537]) ).

thf(621,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( ~ ( in @ ( sK13_C @ SX1 @ SX0 ) @ SX0 )
              | ~ ~ ( in @ ( sK13_C @ SX1 @ SX0 ) @ SX1 ) )
          | ( subset @ SX0 @ SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[538]) ).

thf(622,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( subset @ SX0 @ SX1 )
          | ! [SX2: $i] :
              ( ~ ( in @ SX2 @ SX0 )
              | ( in @ SX2 @ SX1 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[539]) ).

thf(623,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ( disjoint @ SX0 @ SX1 )
          | ~ ( ~ ( in @ ( sK25_C @ SX1 @ SX0 ) @ SX0 )
              | ~ ( in @ ( sK25_C @ SX1 @ SX0 ) @ SX1 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[540]) ).

thf(624,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ! [SX2: $i] :
              ( ~ ( in @ SX2 @ SX0 )
              | ~ ( in @ SX2 @ SX1 ) )
          | ~ ( disjoint @ SX0 @ SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[541]) ).

thf(625,plain,
    ! [SV60: $i] :
      ( ( ~ ! [SY302: $i,SY303: $i] :
              ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK20_D @ SY303 @ SY302 @ SV60 ) @ SY303 )
                            | ( ( sK20_D @ SY303 @ SY302 @ SV60 )
                             != SV60 ) )
                        | ~ ( ~ ( in @ ( sK20_D @ SY303 @ SY302 @ SV60 ) @ SY303 )
                            | ( ( sK20_D @ SY303 @ SY302 @ SV60 )
                             != SY302 ) ) )
                  | ~ ( ( in @ ( sK20_D @ SY303 @ SY302 @ SV60 ) @ SY303 )
                      | ( ( sK20_D @ SY303 @ SY302 @ SV60 )
                        = SV60 )
                      | ( ( sK20_D @ SY303 @ SY302 @ SV60 )
                        = SY302 ) ) )
              | ( SY303
                = ( unordered_pair @ SV60 @ SY302 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[542]) ).

thf(626,plain,
    ! [SV60: $i] :
      ( ( ~ ! [SY304: $i,SY305: $i] :
              ( ( SY305
               != ( unordered_pair @ SV60 @ SY304 ) )
              | ~ ( ~ ! [SY306: $i] :
                        ( ~ ( in @ SY306 @ SY305 )
                        | ( SY306 = SV60 )
                        | ( SY306 = SY304 ) )
                  | ~ ~ ( ~ ! [SY307: $i] :
                              ( ( SY307 != SV60 )
                              | ( in @ SY307 @ SY305 ) )
                        | ~ ! [SX3: $i] :
                              ( ( SX3 != SY304 )
                              | ( in @ SX3 @ SY305 ) ) ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[542]) ).

thf(627,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( subset @ SX0 @ ( singleton @ SX1 ) )
          | ( SX0 = empty_set )
          | ( SX0
            = ( singleton @ SX1 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[543]) ).

thf(628,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)],[544]) ).

thf(629,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( in @ SX0 @ SX1 )
          | ( subset @ ( singleton @ SX0 ) @ SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[545]) ).

thf(630,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( subset @ ( singleton @ SX0 ) @ SX1 )
          | ( in @ SX0 @ SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[546]) ).

thf(631,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( subset @ SX0 @ ( singleton @ SX1 ) )
          | ( SX0 = empty_set )
          | ( SX0
            = ( singleton @ SX1 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[547]) ).

thf(632,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)],[548]) ).

thf(633,plain,
    ! [SV101: $i,SV61: $i] :
      ( ( ~ ! [SY332: $i] :
              ( ! [SY333: $i] :
                  ( ( ordered_pair @ SV61 @ SV101 )
                 != ( ordered_pair @ SY332 @ SY333 ) )
              | ( SV61 = SY332 ) )
        | ~ ! [SY334: $i,SY335: $i] :
              ( ( ( ordered_pair @ SV61 @ SV101 )
               != ( ordered_pair @ SY334 @ SY335 ) )
              | ( SV101 = SY335 ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[549]) ).

thf(634,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( subset @ SX0 @ SX1 )
          | ~ ( subset @ SX1 @ SX0 )
          | ( SX0 = SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[550]) ).

thf(635,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)],[551]) ).

thf(636,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ( SX0 = SX1 )
          | ~ ( subset @ SX0 @ SX1 )
          | ( proper_subset @ SX0 @ SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[552]) ).

thf(637,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)],[553]) ).

thf(638,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( in @ SX0 @ SX1 )
          | ( subset @ ( singleton @ SX0 ) @ SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[554]) ).

thf(639,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( subset @ ( singleton @ SX0 ) @ SX1 )
          | ( in @ SX0 @ SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[555]) ).

thf(640,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( ~ ( ! [SX2: $i] :
                      ( ~ ( in @ ( sK10_C @ SX1 @ SX0 ) @ SX2 )
                      | ~ ( in @ SX2 @ SX0 ) )
                  | ~ ( in @ ( sK10_C @ SX1 @ SX0 ) @ SX1 ) )
              | ~ ( ~ ( ~ ( in @ ( sK10_C @ SX1 @ SX0 ) @ ( sK11_SY201 @ SX1 @ SX0 ) )
                      | ~ ( in @ ( sK11_SY201 @ SX1 @ SX0 ) @ SX0 ) )
                  | ( in @ ( sK10_C @ SX1 @ SX0 ) @ SX1 ) ) )
          | ( SX1
            = ( union @ SX0 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[556]) ).

thf(641,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 @ ( sK9_D @ SX2 @ SX1 @ SX0 ) )
                        | ~ ( in @ ( sK9_D @ SX2 @ SX1 @ SX0 ) @ SX0 ) ) ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[557]) ).

thf(642,plain,
    ! [SV62: $i,SV102: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ ( sK5_C @ SV102 @ SV62 ) @ SV62 )
                  | ~ ( in @ ( sK5_C @ SV102 @ SV62 ) @ SV102 ) )
              | ~ ( ( in @ ( sK5_C @ SV102 @ SV62 ) @ SV62 )
                  | ( in @ ( sK5_C @ SV102 @ SV62 ) @ SV102 ) ) ) )
        = $true )
      | ( ( SV62 = SV102 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[558]) ).

thf(643,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ( ( set_difference @ SX0 @ ( singleton @ SX1 ) )
           != SX0 )
          | ~ ( in @ SX1 @ SX0 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[559]) ).

thf(644,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ( in @ SX1 @ SX0 )
          | ( ( set_difference @ SX0 @ ( singleton @ SX1 ) )
            = SX0 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[560]) ).

thf(645,plain,
    ! [SV63: $i,SV2: $i] :
      ( ( ( in @ SV2 @ SV63 )
        = $false )
      | ( ( ( set_union2 @ ( singleton @ SV2 ) @ SV63 )
          = SV63 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[561]) ).

thf(646,plain,
    ! [SV64: $i,SV3: $i] :
      ( ( ( disjoint @ ( singleton @ SV3 ) @ SV64 )
        = $false )
      | ( ( ~ ( in @ SV3 @ SV64 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[562]) ).

thf(647,plain,
    ! [SV66: $i,SV5: $i] :
      ( ( ( subset @ SV5 @ SV66 )
        = $false )
      | ( ( ! [SY315: $i] :
              ( ( in @ SY315 @ SV5 )
              | ( subset @ SV5 @ ( set_difference @ SV66 @ ( singleton @ SY315 ) ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[564]) ).

thf(648,plain,
    ! [SV67: $i,SV6: $i] :
      ( ( ( in @ SV6 @ SV67 )
        = $false )
      | ( ( subset @ SV6 @ ( union @ SV67 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[565]) ).

thf(649,plain,
    ! [SV68: $i,SV103: $i,SV111: $i,SV7: $i] :
      ( ( ( SV7 = SV111 )
        | ( SV7 = SV103 )
        | ( ( unordered_pair @ SV7 @ SV68 )
         != ( unordered_pair @ SV103 @ SV111 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[566]) ).

thf(650,plain,
    ! [SV69: $i,SV8: $i] :
      ( ( ( subset @ SV8 @ SV69 )
        = $false )
      | ( ( ( set_union2 @ SV8 @ SV69 )
          = SV69 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[567]) ).

thf(651,plain,
    ! [SV104: $i,SV71: $i,SV10: $i] :
      ( ( ( ~ ( subset @ SV10 @ SV71 )
          | ~ ( subset @ SV10 @ SV104 ) )
        = $true )
      | ( ( subset @ SV10 @ ( set_intersection2 @ SV71 @ SV104 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[568]) ).

thf(652,plain,
    ! [SV105: $i,SV72: $i,SV11: $i] :
      ( ( ( ~ ( subset @ SV11 @ SV72 )
          | ~ ( subset @ SV72 @ SV105 ) )
        = $true )
      | ( ( subset @ SV11 @ SV105 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[569]) ).

thf(653,plain,
    ! [SV73: $i,SV12: $i] :
      ( ( ( subset @ SV12 @ SV73 )
        = $false )
      | ( ( ! [SY320: $i] : ( subset @ ( set_intersection2 @ SV12 @ SY320 ) @ ( set_intersection2 @ SV73 @ SY320 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[570]) ).

thf(654,plain,
    ! [SV74: $i,SV13: $i] :
      ( ( ( subset @ SV13 @ SV74 )
        = $false )
      | ( ( ( set_intersection2 @ SV13 @ SV74 )
          = SV13 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[571]) ).

thf(655,plain,
    ! [SV75: $i,SV15: $i] :
      ( ( ( subset @ SV15 @ SV75 )
        = $false )
      | ( ( ! [SY321: $i] : ( subset @ ( set_difference @ SV15 @ SY321 ) @ ( set_difference @ SV75 @ SY321 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[572]) ).

thf(656,plain,
    ! [SV79: $i,SV20: $i] :
      ( ( ( subset @ SV20 @ SV79 )
        = $false )
      | ( ( SV79
          = ( set_union2 @ SV20 @ ( set_difference @ SV79 @ SV20 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[574]) ).

thf(657,plain,
    ! [SV80: $i,SV21: $i] :
      ( ( ( in @ SV21 @ SV80 )
        = $false )
      | ( ( ( set_union2 @ ( singleton @ SV21 ) @ SV80 )
          = SV80 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[575]) ).

thf(658,plain,
    ! [SV23: $i,SV82: $i] :
      ( ( ( proper_subset @ SV82 @ SV23 )
        = $false )
      | ( ( ~ ( subset @ SV23 @ SV82 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[576]) ).

thf(659,plain,
    ! [SV24: $i,SV106: $i,SV83: $i] :
      ( ( ( ~ ( disjoint @ SV83 @ SV106 )
          | ~ ( subset @ SV24 @ SV83 ) )
        = $true )
      | ( ( disjoint @ SV24 @ SV106 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[577]) ).

thf(660,plain,
    ! [SV84: $i,SV26: $i] :
      ( ( ( subset @ ( singleton @ SV26 ) @ ( singleton @ SV84 ) )
        = $false )
      | ( ( SV26 = SV84 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[578]) ).

thf(661,plain,
    ! [SV107: $i,SV86: $i,SV28: $i] :
      ( ( ( ~ ( subset @ SV28 @ SV86 )
          | ~ ( subset @ SV107 @ SV86 ) )
        = $true )
      | ( ( subset @ ( set_union2 @ SV28 @ SV107 ) @ SV86 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[579]) ).

thf(662,plain,
    ! [SV112: $i,SV87: $i,SV29: $i] :
      ( ( ( ( ( singleton @ SV29 )
           != ( unordered_pair @ SV87 @ SV112 ) ) )
        = $true )
      | ( ( SV29 = SV87 )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[580]) ).

thf(663,plain,
    ! [SV88: $i,SV30: $i] :
      ( ( ( in @ SV30 @ SV88 )
        = $false )
      | ( ( subset @ SV30 @ ( union @ SV88 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[581]) ).

thf(664,plain,
    ! [SV108: $i,SV89: $i,SV32: $i] :
      ( ( ( ( ( singleton @ SV32 )
           != ( unordered_pair @ SV89 @ SV108 ) ) )
        = $true )
      | ( ( SV89 = SV108 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[582]) ).

thf(665,plain,
    ! [SV90: $i,SV33: $i] :
      ( ( ( in @ SV33 @ SV90 )
        = $false )
      | ( ( ~ ( in @ SV90 @ SV33 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[583]) ).

thf(666,plain,
    ! [SV91: $i,SV34: $i] :
      ( ( ( proper_subset @ SV34 @ SV91 )
        = $false )
      | ( ( ~ ( proper_subset @ SV91 @ SV34 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[584]) ).

thf(667,plain,
    ! [SV109: $i,SV40: $i] :
      ( ( ( empty @ ( set_union2 @ SV40 @ SV109 ) )
        = $false )
      | ( ( empty @ SV40 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[586]) ).

thf(668,plain,
    ! [SV41: $i,SV110: $i] :
      ( ( ( empty @ ( set_union2 @ SV110 @ SV41 ) )
        = $false )
      | ( ( empty @ SV41 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[587]) ).

thf(669,plain,
    ! [SV97: $i,SV46: $i] :
      ( ( ( disjoint @ SV46 @ SV97 )
        = $false )
      | ( ( disjoint @ SV97 @ SV46 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[588]) ).

thf(670,plain,
    ! [SV52: $i,SV98: $i] :
      ( ( ( empty @ SV98 )
        = $false )
      | ( ( ~ ( in @ SV52 @ SV98 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[590]) ).

thf(671,plain,
    ! [SV99: $i,SV53: $i] :
      ( ( ( SV53 = SV99 )
        = $true )
      | ( ( ~ ( empty @ SV53 ) )
        = $true )
      | ( ( ~ ( empty @ SV99 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[591]) ).

thf(672,plain,
    ! [SV54: $i] :
      ( ( ! [SY258: $i,SY259: $i] :
            ( ~ ( in @ SV54 @ SY259 )
            | ~ ( in @ SY258 @ SY259 )
            | ( subset @ ( unordered_pair @ SV54 @ SY258 ) @ SY259 ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[592]) ).

thf(673,plain,
    ! [SV54: $i] :
      ( ( ~ ( ~ ! [SY260: $i,SY261: $i] :
                  ( ~ ( subset @ ( unordered_pair @ SV54 @ SY260 ) @ SY261 )
                  | ( in @ SV54 @ SY261 ) )
            | ~ ! [SY262: $i,SY263: $i] :
                  ( ~ ( subset @ ( unordered_pair @ SV54 @ SY262 ) @ SY263 )
                  | ( in @ SY262 @ SY263 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[593]) ).

thf(674,plain,
    ! [SV55: $i] :
      ( ( ! [SY264: $i,SY265: $i] :
            ( ~ ( ~ ( ~ ( in @ ( sK8_D @ SY265 @ SY264 @ SV55 ) @ SV55 )
                    | ( in @ ( sK8_D @ SY265 @ SY264 @ SV55 ) @ SY264 )
                    | ~ ( in @ ( sK8_D @ SY265 @ SY264 @ SV55 ) @ SY265 ) )
                | ~ ~ ( ~ ( ( in @ ( sK8_D @ SY265 @ SY264 @ SV55 ) @ SV55 )
                          | ( in @ ( sK8_D @ SY265 @ SY264 @ SV55 ) @ SY265 ) )
                      | ~ ( ~ ( in @ ( sK8_D @ SY265 @ SY264 @ SV55 ) @ SY264 )
                          | ( in @ ( sK8_D @ SY265 @ SY264 @ SV55 ) @ SY265 ) ) ) )
            | ( SY265
              = ( set_difference @ SV55 @ SY264 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[594]) ).

thf(675,plain,
    ! [SV55: $i] :
      ( ( ! [SY266: $i,SY267: $i] :
            ( ( SY267
             != ( set_difference @ SV55 @ SY266 ) )
            | ~ ( ~ ! [SY268: $i] :
                      ( ~ ( in @ SY268 @ SV55 )
                      | ( in @ SY268 @ SY266 )
                      | ( in @ SY268 @ SY267 ) )
                | ~ ~ ( ~ ! [SY269: $i] :
                            ( ~ ( in @ SY269 @ SY267 )
                            | ( in @ SY269 @ SV55 ) )
                      | ~ ! [SX3: $i] :
                            ( ~ ( in @ SX3 @ SY267 )
                            | ~ ( in @ SX3 @ SY266 ) ) ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[595]) ).

thf(676,plain,
    ! [SV56: $i] :
      ( ( ! [SY271: $i,SY272: $i] :
            ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK19_D @ SY272 @ SY271 @ SV56 ) @ SY272 )
                          | ~ ( in @ ( sK19_D @ SY272 @ SY271 @ SV56 ) @ SV56 ) )
                      | ~ ( ~ ( in @ ( sK19_D @ SY272 @ SY271 @ SV56 ) @ SY272 )
                          | ~ ( in @ ( sK19_D @ SY272 @ SY271 @ SV56 ) @ SY271 ) ) )
                | ~ ( ( in @ ( sK19_D @ SY272 @ SY271 @ SV56 ) @ SY272 )
                    | ( in @ ( sK19_D @ SY272 @ SY271 @ SV56 ) @ SV56 )
                    | ( in @ ( sK19_D @ SY272 @ SY271 @ SV56 ) @ SY271 ) ) )
            | ( SY272
              = ( set_union2 @ SV56 @ SY271 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[596]) ).

thf(677,plain,
    ! [SV56: $i] :
      ( ( ! [SY273: $i,SY274: $i] :
            ( ( SY274
             != ( set_union2 @ SV56 @ SY273 ) )
            | ~ ( ~ ! [SY275: $i] :
                      ( ~ ( in @ SY275 @ SY274 )
                      | ( in @ SY275 @ SV56 )
                      | ( in @ SY275 @ SY273 ) )
                | ~ ~ ( ~ ! [SY276: $i] :
                            ( ~ ( in @ SY276 @ SV56 )
                            | ( in @ SY276 @ SY274 ) )
                      | ~ ! [SX3: $i] :
                            ( ~ ( in @ SX3 @ SY273 )
                            | ( in @ SX3 @ SY274 ) ) ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[597]) ).

thf(678,plain,
    ! [SV113: $i] :
      ( ( ! [SY337: $i] :
            ( ( disjoint @ SV113 @ SY337 )
            | ( in @ ( sK24_C @ SY337 @ SV113 ) @ ( set_intersection2 @ SV113 @ SY337 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[598]) ).

thf(679,plain,
    ! [SV114: $i] :
      ( ( ! [SY338: $i] :
            ( ! [SY339: $i] :
                ~ ( in @ SY339 @ ( set_intersection2 @ SV114 @ SY338 ) )
            | ~ ( disjoint @ SV114 @ SY338 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[599]) ).

thf(680,plain,
    ( ( ( ~ ( in @ sK1_A @ sK3_SY197 ) )
      = $true )
    | ( ( ~ ( in @ sK2_SY194 @ sK4_SY199 ) )
      = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[601]) ).

thf(681,plain,
    ! [SV115: $i] :
      ( ( ! [SY340: $i] :
            ( ( ( set_difference @ SV115 @ SY340 )
             != empty_set )
            | ( subset @ SV115 @ SY340 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[602]) ).

thf(682,plain,
    ! [SV116: $i] :
      ( ( ! [SY341: $i] :
            ( ~ ( subset @ SV116 @ SY341 )
            | ( ( set_difference @ SV116 @ SY341 )
              = empty_set ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[603]) ).

thf(683,plain,
    ! [SV117: $i] :
      ( ( ! [SY342: $i] :
            ( ( ( set_intersection2 @ SV117 @ SY342 )
             != empty_set )
            | ( disjoint @ SV117 @ SY342 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[604]) ).

thf(684,plain,
    ! [SV118: $i] :
      ( ( ! [SY343: $i] :
            ( ~ ( disjoint @ SV118 @ SY343 )
            | ( ( set_intersection2 @ SV118 @ SY343 )
              = empty_set ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[605]) ).

thf(685,plain,
    ! [SV57: $i] :
      ( ( ! [SY278: $i,SY279: $i] :
            ( ~ ( ~ ( ~ ( in @ ( sK12_D @ SY279 @ SY278 @ SV57 ) @ SV57 )
                    | ~ ( in @ ( sK12_D @ SY279 @ SY278 @ SV57 ) @ SY278 )
                    | ~ ( in @ ( sK12_D @ SY279 @ SY278 @ SV57 ) @ SY279 ) )
                | ~ ~ ( ~ ( ( in @ ( sK12_D @ SY279 @ SY278 @ SV57 ) @ SV57 )
                          | ( in @ ( sK12_D @ SY279 @ SY278 @ SV57 ) @ SY279 ) )
                      | ~ ( ( in @ ( sK12_D @ SY279 @ SY278 @ SV57 ) @ SY278 )
                          | ( in @ ( sK12_D @ SY279 @ SY278 @ SV57 ) @ SY279 ) ) ) )
            | ( SY279
              = ( set_intersection2 @ SV57 @ SY278 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[606]) ).

thf(686,plain,
    ! [SV57: $i] :
      ( ( ! [SY280: $i,SY281: $i] :
            ( ( SY281
             != ( set_intersection2 @ SV57 @ SY280 ) )
            | ~ ( ~ ! [SY282: $i] :
                      ( ~ ( in @ SY282 @ SV57 )
                      | ~ ( in @ SY282 @ SY280 )
                      | ( in @ SY282 @ SY281 ) )
                | ~ ~ ( ~ ! [SY283: $i] :
                            ( ~ ( in @ SY283 @ SY281 )
                            | ( in @ SY283 @ SV57 ) )
                      | ~ ! [SX3: $i] :
                            ( ~ ( in @ SX3 @ SY281 )
                            | ( in @ SX3 @ SY280 ) ) ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[607]) ).

thf(687,plain,
    ! [SV119: $i] :
      ( ( ( in @ ( sK22_B @ SV119 ) @ SV119 )
        | ( SV119 = empty_set ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[608]) ).

thf(688,plain,
    ! [SV120: $i] :
      ( ( ( SV120 != empty_set )
        | ! [SY344: $i] :
            ~ ( in @ SY344 @ SV120 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[609]) ).

thf(689,plain,
    ! [SV121: $i] :
      ( ( ! [SY345: $i] :
            ( ~ ( ~ ( ~ ( in @ ( sK21_C @ SY345 @ SV121 ) @ SY345 )
                    | ~ ( subset @ ( sK21_C @ SY345 @ SV121 ) @ SV121 ) )
                | ~ ( ( in @ ( sK21_C @ SY345 @ SV121 ) @ SY345 )
                    | ( subset @ ( sK21_C @ SY345 @ SV121 ) @ SV121 ) ) )
            | ( SY345
              = ( powerset @ SV121 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[610]) ).

thf(690,plain,
    ! [SV122: $i] :
      ( ( ! [SY346: $i] :
            ( ( SY346
             != ( powerset @ SV122 ) )
            | ~ ( ~ ! [SY347: $i] :
                      ( ~ ( in @ SY347 @ SY346 )
                      | ( subset @ SY347 @ SV122 ) )
                | ~ ! [SY348: $i] :
                      ( ~ ( subset @ SY348 @ SV122 )
                      | ( in @ SY348 @ SY346 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[611]) ).

thf(691,plain,
    ! [SV123: $i] :
      ( ( ! [SY349: $i] :
            ( ( ( set_difference @ SV123 @ SY349 )
             != empty_set )
            | ( subset @ SV123 @ SY349 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[612]) ).

thf(692,plain,
    ! [SV124: $i] :
      ( ( ! [SY350: $i] :
            ( ~ ( subset @ SV124 @ SY350 )
            | ( ( set_difference @ SV124 @ SY350 )
              = empty_set ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[613]) ).

thf(693,plain,
    ! [SV125: $i] :
      ( ( ! [SY351: $i] :
            ( ( ( set_difference @ SV125 @ SY351 )
             != SV125 )
            | ( disjoint @ SV125 @ SY351 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[614]) ).

thf(694,plain,
    ! [SV126: $i] :
      ( ( ! [SY352: $i] :
            ( ~ ( disjoint @ SV126 @ SY352 )
            | ( ( set_difference @ SV126 @ SY352 )
              = SV126 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[615]) ).

thf(695,plain,
    ! [SV58: $i] :
      ( ( ! [SY285: $i,SY286: $i] :
            ( ~ ( ~ ( ! [SY287: $i,SY288: $i] :
                        ( ~ ( in @ SY287 @ SV58 )
                        | ~ ( in @ SY288 @ SY285 )
                        | ( ( sK16_D @ SY286 @ SY285 @ SV58 )
                         != ( ordered_pair @ SY287 @ SY288 ) ) )
                    | ~ ( in @ ( sK16_D @ SY286 @ SY285 @ SV58 ) @ SY286 ) )
                | ~ ( ~ ( ~ ~ ( ~ ( in @ ( sK17_SY205 @ SY286 @ SY285 @ SV58 ) @ SV58 )
                              | ~ ( in @ ( sK18_SY207 @ SY286 @ SY285 @ SV58 ) @ SY285 ) )
                        | ( ( sK16_D @ SY286 @ SY285 @ SV58 )
                         != ( ordered_pair @ ( sK17_SY205 @ SY286 @ SY285 @ SV58 ) @ ( sK18_SY207 @ SY286 @ SY285 @ SV58 ) ) ) )
                    | ( in @ ( sK16_D @ SY286 @ SY285 @ SV58 ) @ SY286 ) ) )
            | ( SY286
              = ( cartesian_product2 @ SV58 @ SY285 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[616]) ).

thf(696,plain,
    ! [SV58: $i] :
      ( ( ! [SY289: $i,SY290: $i] :
            ( ( SY290
             != ( cartesian_product2 @ SV58 @ SY289 ) )
            | ~ ( ~ ! [SY291: $i] :
                      ( ! [SY292: $i,SY293: $i] :
                          ( ~ ( in @ SY292 @ SV58 )
                          | ~ ( in @ SY293 @ SY289 )
                          | ( SY291
                           != ( ordered_pair @ SY292 @ SY293 ) ) )
                      | ( in @ SY291 @ SY290 ) )
                | ~ ! [SY294: $i] :
                      ( ~ ( in @ SY294 @ SY290 )
                      | ~ ( ~ ~ ( ~ ( in @ ( sK14_E @ SY294 @ SY290 @ SY289 @ SV58 ) @ SV58 )
                                | ~ ( in @ ( sK15_SY202 @ SY294 @ SY290 @ SY289 @ SV58 ) @ SY289 ) )
                          | ( SY294
                           != ( ordered_pair @ ( sK14_E @ SY294 @ SY290 @ SY289 @ SV58 ) @ ( sK15_SY202 @ SY294 @ SY290 @ SY289 @ SV58 ) ) ) ) ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[617]) ).

thf(697,plain,
    ! [SV100: $i,SV59: $i] :
      ( ( ~ ! [SY326: $i,SY327: $i] :
              ( ~ ( in @ SV59 @ SY326 )
              | ~ ( in @ SV100 @ SY327 )
              | ( in @ ( ordered_pair @ SV59 @ SV100 ) @ ( cartesian_product2 @ SY326 @ SY327 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[618]) ).

thf(698,plain,
    ! [SV100: $i,SV59: $i] :
      ( ( ~ ~ ( ~ ! [SY328: $i] :
                    ( ! [SY329: $i] :
                        ~ ( in @ ( ordered_pair @ SV59 @ SV100 ) @ ( cartesian_product2 @ SY328 @ SY329 ) )
                    | ( in @ SV59 @ SY328 ) )
              | ~ ! [SY330: $i,SY331: $i] :
                    ( ~ ( in @ ( ordered_pair @ SV59 @ SV100 ) @ ( cartesian_product2 @ SY330 @ SY331 ) )
                    | ( in @ SV100 @ SY331 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[618]) ).

thf(699,plain,
    ! [SV127: $i] :
      ( ( ! [SY353: $i] :
            ( ~ ( ~ ( ( ( sK23_C @ SY353 @ SV127 )
                     != SV127 )
                    | ~ ( in @ ( sK23_C @ SY353 @ SV127 ) @ SY353 ) )
                | ~ ( ( ( sK23_C @ SY353 @ SV127 )
                      = SV127 )
                    | ( in @ ( sK23_C @ SY353 @ SV127 ) @ SY353 ) ) )
            | ( SY353
              = ( singleton @ SV127 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[619]) ).

thf(700,plain,
    ! [SV128: $i] :
      ( ( ! [SY354: $i] :
            ( ( SY354
             != ( singleton @ SV128 ) )
            | ~ ( ~ ! [SY355: $i] :
                      ( ( SY355 != SV128 )
                      | ( in @ SY355 @ SY354 ) )
                | ~ ! [SY356: $i] :
                      ( ~ ( in @ SY356 @ SY354 )
                      | ( SY356 = SV128 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[620]) ).

thf(701,plain,
    ! [SV129: $i] :
      ( ( ! [SY357: $i] :
            ( ~ ( ~ ( in @ ( sK13_C @ SY357 @ SV129 ) @ SV129 )
                | ~ ~ ( in @ ( sK13_C @ SY357 @ SV129 ) @ SY357 ) )
            | ( subset @ SV129 @ SY357 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[621]) ).

thf(702,plain,
    ! [SV130: $i] :
      ( ( ! [SY358: $i] :
            ( ~ ( subset @ SV130 @ SY358 )
            | ! [SY359: $i] :
                ( ~ ( in @ SY359 @ SV130 )
                | ( in @ SY359 @ SY358 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[622]) ).

thf(703,plain,
    ! [SV131: $i] :
      ( ( ! [SY360: $i] :
            ( ( disjoint @ SV131 @ SY360 )
            | ~ ( ~ ( in @ ( sK25_C @ SY360 @ SV131 ) @ SV131 )
                | ~ ( in @ ( sK25_C @ SY360 @ SV131 ) @ SY360 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[623]) ).

thf(704,plain,
    ! [SV132: $i] :
      ( ( ! [SY361: $i] :
            ( ! [SY362: $i] :
                ( ~ ( in @ SY362 @ SV132 )
                | ~ ( in @ SY362 @ SY361 ) )
            | ~ ( disjoint @ SV132 @ SY361 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[624]) ).

thf(705,plain,
    ! [SV60: $i] :
      ( ( ! [SY302: $i,SY303: $i] :
            ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK20_D @ SY303 @ SY302 @ SV60 ) @ SY303 )
                          | ( ( sK20_D @ SY303 @ SY302 @ SV60 )
                           != SV60 ) )
                      | ~ ( ~ ( in @ ( sK20_D @ SY303 @ SY302 @ SV60 ) @ SY303 )
                          | ( ( sK20_D @ SY303 @ SY302 @ SV60 )
                           != SY302 ) ) )
                | ~ ( ( in @ ( sK20_D @ SY303 @ SY302 @ SV60 ) @ SY303 )
                    | ( ( sK20_D @ SY303 @ SY302 @ SV60 )
                      = SV60 )
                    | ( ( sK20_D @ SY303 @ SY302 @ SV60 )
                      = SY302 ) ) )
            | ( SY303
              = ( unordered_pair @ SV60 @ SY302 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[625]) ).

thf(706,plain,
    ! [SV60: $i] :
      ( ( ! [SY304: $i,SY305: $i] :
            ( ( SY305
             != ( unordered_pair @ SV60 @ SY304 ) )
            | ~ ( ~ ! [SY306: $i] :
                      ( ~ ( in @ SY306 @ SY305 )
                      | ( SY306 = SV60 )
                      | ( SY306 = SY304 ) )
                | ~ ~ ( ~ ! [SY307: $i] :
                            ( ( SY307 != SV60 )
                            | ( in @ SY307 @ SY305 ) )
                      | ~ ! [SX3: $i] :
                            ( ( SX3 != SY304 )
                            | ( in @ SX3 @ SY305 ) ) ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[626]) ).

thf(707,plain,
    ! [SV133: $i] :
      ( ( ! [SY363: $i] :
            ( ~ ( subset @ SV133 @ ( singleton @ SY363 ) )
            | ( SV133 = empty_set )
            | ( SV133
              = ( singleton @ SY363 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[627]) ).

thf(708,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)],[628]) ).

thf(709,plain,
    ! [SV134: $i] :
      ( ( ! [SY364: $i] :
            ( ~ ( in @ SV134 @ SY364 )
            | ( subset @ ( singleton @ SV134 ) @ SY364 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[629]) ).

thf(710,plain,
    ! [SV135: $i] :
      ( ( ! [SY365: $i] :
            ( ~ ( subset @ ( singleton @ SV135 ) @ SY365 )
            | ( in @ SV135 @ SY365 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[630]) ).

thf(711,plain,
    ! [SV136: $i] :
      ( ( ! [SY366: $i] :
            ( ~ ( subset @ SV136 @ ( singleton @ SY366 ) )
            | ( SV136 = empty_set )
            | ( SV136
              = ( singleton @ SY366 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[631]) ).

thf(712,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)],[632]) ).

thf(713,plain,
    ! [SV101: $i,SV61: $i] :
      ( ( ~ ! [SY332: $i] :
              ( ! [SY333: $i] :
                  ( ( ordered_pair @ SV61 @ SV101 )
                 != ( ordered_pair @ SY332 @ SY333 ) )
              | ( SV61 = SY332 ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[633]) ).

thf(714,plain,
    ! [SV101: $i,SV61: $i] :
      ( ( ~ ! [SY334: $i,SY335: $i] :
              ( ( ( ordered_pair @ SV61 @ SV101 )
               != ( ordered_pair @ SY334 @ SY335 ) )
              | ( SV101 = SY335 ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[633]) ).

thf(715,plain,
    ! [SV137: $i] :
      ( ( ! [SY367: $i] :
            ( ~ ( subset @ SV137 @ SY367 )
            | ~ ( subset @ SY367 @ SV137 )
            | ( SV137 = SY367 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[634]) ).

thf(716,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)],[635]) ).

thf(717,plain,
    ! [SV138: $i] :
      ( ( ! [SY368: $i] :
            ( ( SV138 = SY368 )
            | ~ ( subset @ SV138 @ SY368 )
            | ( proper_subset @ SV138 @ SY368 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[636]) ).

thf(718,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)],[637]) ).

thf(719,plain,
    ! [SV139: $i] :
      ( ( ! [SY369: $i] :
            ( ~ ( in @ SV139 @ SY369 )
            | ( subset @ ( singleton @ SV139 ) @ SY369 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[638]) ).

thf(720,plain,
    ! [SV140: $i] :
      ( ( ! [SY370: $i] :
            ( ~ ( subset @ ( singleton @ SV140 ) @ SY370 )
            | ( in @ SV140 @ SY370 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[639]) ).

thf(721,plain,
    ! [SV141: $i] :
      ( ( ! [SY371: $i] :
            ( ~ ( ~ ( ! [SY372: $i] :
                        ( ~ ( in @ ( sK10_C @ SY371 @ SV141 ) @ SY372 )
                        | ~ ( in @ SY372 @ SV141 ) )
                    | ~ ( in @ ( sK10_C @ SY371 @ SV141 ) @ SY371 ) )
                | ~ ( ~ ( ~ ( in @ ( sK10_C @ SY371 @ SV141 ) @ ( sK11_SY201 @ SY371 @ SV141 ) )
                        | ~ ( in @ ( sK11_SY201 @ SY371 @ SV141 ) @ SV141 ) )
                    | ( in @ ( sK10_C @ SY371 @ SV141 ) @ SY371 ) ) )
            | ( SY371
              = ( union @ SV141 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[640]) ).

thf(722,plain,
    ! [SV142: $i] :
      ( ( ! [SY373: $i] :
            ( ( SY373
             != ( union @ SV142 ) )
            | ~ ( ~ ! [SY374: $i] :
                      ( ! [SY375: $i] :
                          ( ~ ( in @ SY374 @ SY375 )
                          | ~ ( in @ SY375 @ SV142 ) )
                      | ( in @ SY374 @ SY373 ) )
                | ~ ! [SY376: $i] :
                      ( ~ ( in @ SY376 @ SY373 )
                      | ~ ( ~ ( in @ SY376 @ ( sK9_D @ SY376 @ SY373 @ SV142 ) )
                          | ~ ( in @ ( sK9_D @ SY376 @ SY373 @ SV142 ) @ SV142 ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[641]) ).

thf(723,plain,
    ! [SV62: $i,SV102: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK5_C @ SV102 @ SV62 ) @ SV62 )
              | ~ ( in @ ( sK5_C @ SV102 @ SV62 ) @ SV102 ) )
          | ~ ( ( in @ ( sK5_C @ SV102 @ SV62 ) @ SV62 )
              | ( in @ ( sK5_C @ SV102 @ SV62 ) @ SV102 ) ) )
        = $false )
      | ( ( SV62 = SV102 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[642]) ).

thf(724,plain,
    ! [SV143: $i] :
      ( ( ! [SY377: $i] :
            ( ( ( set_difference @ SV143 @ ( singleton @ SY377 ) )
             != SV143 )
            | ~ ( in @ SY377 @ SV143 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[643]) ).

thf(725,plain,
    ! [SV144: $i] :
      ( ( ! [SY378: $i] :
            ( ( in @ SY378 @ SV144 )
            | ( ( set_difference @ SV144 @ ( singleton @ SY378 ) )
              = SV144 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[644]) ).

thf(726,plain,
    ! [SV64: $i,SV3: $i] :
      ( ( ( in @ SV3 @ SV64 )
        = $false )
      | ( ( disjoint @ ( singleton @ SV3 ) @ SV64 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[646]) ).

thf(727,plain,
    ! [SV66: $i,SV5: $i,SV145: $i] :
      ( ( ( ( in @ SV145 @ SV5 )
          | ( subset @ SV5 @ ( set_difference @ SV66 @ ( singleton @ SV145 ) ) ) )
        = $true )
      | ( ( subset @ SV5 @ SV66 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[647]) ).

thf(728,plain,
    ! [SV68: $i,SV103: $i,SV111: $i,SV7: $i] :
      ( ( ( SV7 = SV111 )
        = $true )
      | ( ( ( SV7 = SV103 )
          | ( ( unordered_pair @ SV7 @ SV68 )
           != ( unordered_pair @ SV103 @ SV111 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[649]) ).

thf(729,plain,
    ! [SV104: $i,SV71: $i,SV10: $i] :
      ( ( ( ~ ( subset @ SV10 @ SV71 ) )
        = $true )
      | ( ( ~ ( subset @ SV10 @ SV104 ) )
        = $true )
      | ( ( subset @ SV10 @ ( set_intersection2 @ SV71 @ SV104 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[651]) ).

thf(730,plain,
    ! [SV105: $i,SV72: $i,SV11: $i] :
      ( ( ( ~ ( subset @ SV11 @ SV72 ) )
        = $true )
      | ( ( ~ ( subset @ SV72 @ SV105 ) )
        = $true )
      | ( ( subset @ SV11 @ SV105 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[652]) ).

thf(731,plain,
    ! [SV73: $i,SV146: $i,SV12: $i] :
      ( ( ( subset @ ( set_intersection2 @ SV12 @ SV146 ) @ ( set_intersection2 @ SV73 @ SV146 ) )
        = $true )
      | ( ( subset @ SV12 @ SV73 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[653]) ).

thf(732,plain,
    ! [SV75: $i,SV147: $i,SV15: $i] :
      ( ( ( subset @ ( set_difference @ SV15 @ SV147 ) @ ( set_difference @ SV75 @ SV147 ) )
        = $true )
      | ( ( subset @ SV15 @ SV75 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[655]) ).

thf(733,plain,
    ! [SV82: $i,SV23: $i] :
      ( ( ( subset @ SV23 @ SV82 )
        = $false )
      | ( ( proper_subset @ SV82 @ SV23 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[658]) ).

thf(734,plain,
    ! [SV24: $i,SV106: $i,SV83: $i] :
      ( ( ( ~ ( disjoint @ SV83 @ SV106 ) )
        = $true )
      | ( ( ~ ( subset @ SV24 @ SV83 ) )
        = $true )
      | ( ( disjoint @ SV24 @ SV106 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[659]) ).

thf(735,plain,
    ! [SV107: $i,SV86: $i,SV28: $i] :
      ( ( ( ~ ( subset @ SV28 @ SV86 ) )
        = $true )
      | ( ( ~ ( subset @ SV107 @ SV86 ) )
        = $true )
      | ( ( subset @ ( set_union2 @ SV28 @ SV107 ) @ SV86 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[661]) ).

thf(736,plain,
    ! [SV112: $i,SV87: $i,SV29: $i] :
      ( ( ( ( singleton @ SV29 )
          = ( unordered_pair @ SV87 @ SV112 ) )
        = $false )
      | ( ( SV29 = SV87 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[662]) ).

thf(737,plain,
    ! [SV108: $i,SV89: $i,SV32: $i] :
      ( ( ( ( singleton @ SV32 )
          = ( unordered_pair @ SV89 @ SV108 ) )
        = $false )
      | ( ( SV89 = SV108 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[664]) ).

thf(738,plain,
    ! [SV33: $i,SV90: $i] :
      ( ( ( in @ SV90 @ SV33 )
        = $false )
      | ( ( in @ SV33 @ SV90 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[665]) ).

thf(739,plain,
    ! [SV34: $i,SV91: $i] :
      ( ( ( proper_subset @ SV91 @ SV34 )
        = $false )
      | ( ( proper_subset @ SV34 @ SV91 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[666]) ).

thf(740,plain,
    ! [SV98: $i,SV52: $i] :
      ( ( ( in @ SV52 @ SV98 )
        = $false )
      | ( ( empty @ SV98 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[670]) ).

thf(741,plain,
    ! [SV99: $i,SV53: $i] :
      ( ( ( empty @ SV53 )
        = $false )
      | ( ( SV53 = SV99 )
        = $true )
      | ( ( ~ ( empty @ SV99 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[671]) ).

thf(742,plain,
    ! [SV148: $i,SV54: $i] :
      ( ( ! [SY379: $i] :
            ( ~ ( in @ SV54 @ SY379 )
            | ~ ( in @ SV148 @ SY379 )
            | ( subset @ ( unordered_pair @ SV54 @ SV148 ) @ SY379 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[672]) ).

thf(743,plain,
    ! [SV54: $i] :
      ( ( ~ ! [SY260: $i,SY261: $i] :
              ( ~ ( subset @ ( unordered_pair @ SV54 @ SY260 ) @ SY261 )
              | ( in @ SV54 @ SY261 ) )
        | ~ ! [SY262: $i,SY263: $i] :
              ( ~ ( subset @ ( unordered_pair @ SV54 @ SY262 ) @ SY263 )
              | ( in @ SY262 @ SY263 ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[673]) ).

thf(744,plain,
    ! [SV55: $i,SV149: $i] :
      ( ( ! [SY380: $i] :
            ( ~ ( ~ ( ~ ( in @ ( sK8_D @ SY380 @ SV149 @ SV55 ) @ SV55 )
                    | ( in @ ( sK8_D @ SY380 @ SV149 @ SV55 ) @ SV149 )
                    | ~ ( in @ ( sK8_D @ SY380 @ SV149 @ SV55 ) @ SY380 ) )
                | ~ ~ ( ~ ( ( in @ ( sK8_D @ SY380 @ SV149 @ SV55 ) @ SV55 )
                          | ( in @ ( sK8_D @ SY380 @ SV149 @ SV55 ) @ SY380 ) )
                      | ~ ( ~ ( in @ ( sK8_D @ SY380 @ SV149 @ SV55 ) @ SV149 )
                          | ( in @ ( sK8_D @ SY380 @ SV149 @ SV55 ) @ SY380 ) ) ) )
            | ( SY380
              = ( set_difference @ SV55 @ SV149 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[674]) ).

thf(745,plain,
    ! [SV150: $i,SV55: $i] :
      ( ( ! [SY381: $i] :
            ( ( SY381
             != ( set_difference @ SV55 @ SV150 ) )
            | ~ ( ~ ! [SY382: $i] :
                      ( ~ ( in @ SY382 @ SV55 )
                      | ( in @ SY382 @ SV150 )
                      | ( in @ SY382 @ SY381 ) )
                | ~ ~ ( ~ ! [SY269: $i] :
                            ( ~ ( in @ SY269 @ SY381 )
                            | ( in @ SY269 @ SV55 ) )
                      | ~ ! [SY384: $i] :
                            ( ~ ( in @ SY384 @ SY381 )
                            | ~ ( in @ SY384 @ SV150 ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[675]) ).

thf(746,plain,
    ! [SV56: $i,SV151: $i] :
      ( ( ! [SY385: $i] :
            ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK19_D @ SY385 @ SV151 @ SV56 ) @ SY385 )
                          | ~ ( in @ ( sK19_D @ SY385 @ SV151 @ SV56 ) @ SV56 ) )
                      | ~ ( ~ ( in @ ( sK19_D @ SY385 @ SV151 @ SV56 ) @ SY385 )
                          | ~ ( in @ ( sK19_D @ SY385 @ SV151 @ SV56 ) @ SV151 ) ) )
                | ~ ( ( in @ ( sK19_D @ SY385 @ SV151 @ SV56 ) @ SY385 )
                    | ( in @ ( sK19_D @ SY385 @ SV151 @ SV56 ) @ SV56 )
                    | ( in @ ( sK19_D @ SY385 @ SV151 @ SV56 ) @ SV151 ) ) )
            | ( SY385
              = ( set_union2 @ SV56 @ SV151 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[676]) ).

thf(747,plain,
    ! [SV152: $i,SV56: $i] :
      ( ( ! [SY386: $i] :
            ( ( SY386
             != ( set_union2 @ SV56 @ SV152 ) )
            | ~ ( ~ ! [SY387: $i] :
                      ( ~ ( in @ SY387 @ SY386 )
                      | ( in @ SY387 @ SV56 )
                      | ( in @ SY387 @ SV152 ) )
                | ~ ~ ( ~ ! [SY276: $i] :
                            ( ~ ( in @ SY276 @ SV56 )
                            | ( in @ SY276 @ SY386 ) )
                      | ~ ! [SY389: $i] :
                            ( ~ ( in @ SY389 @ SV152 )
                            | ( in @ SY389 @ SY386 ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[677]) ).

thf(748,plain,
    ! [SV153: $i,SV113: $i] :
      ( ( ( disjoint @ SV113 @ SV153 )
        | ( in @ ( sK24_C @ SV153 @ SV113 ) @ ( set_intersection2 @ SV113 @ SV153 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[678]) ).

thf(749,plain,
    ! [SV154: $i,SV114: $i] :
      ( ( ! [SY390: $i] :
            ~ ( in @ SY390 @ ( set_intersection2 @ SV114 @ SV154 ) )
        | ~ ( disjoint @ SV114 @ SV154 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[679]) ).

thf(750,plain,
    ( ( ( in @ sK1_A @ sK3_SY197 )
      = $false )
    | ( ( ~ ( in @ sK2_SY194 @ sK4_SY199 ) )
      = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[680]) ).

thf(751,plain,
    ! [SV155: $i,SV115: $i] :
      ( ( ( ( set_difference @ SV115 @ SV155 )
         != empty_set )
        | ( subset @ SV115 @ SV155 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[681]) ).

thf(752,plain,
    ! [SV156: $i,SV116: $i] :
      ( ( ~ ( subset @ SV116 @ SV156 )
        | ( ( set_difference @ SV116 @ SV156 )
          = empty_set ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[682]) ).

thf(753,plain,
    ! [SV157: $i,SV117: $i] :
      ( ( ( ( set_intersection2 @ SV117 @ SV157 )
         != empty_set )
        | ( disjoint @ SV117 @ SV157 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[683]) ).

thf(754,plain,
    ! [SV158: $i,SV118: $i] :
      ( ( ~ ( disjoint @ SV118 @ SV158 )
        | ( ( set_intersection2 @ SV118 @ SV158 )
          = empty_set ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[684]) ).

thf(755,plain,
    ! [SV57: $i,SV159: $i] :
      ( ( ! [SY391: $i] :
            ( ~ ( ~ ( ~ ( in @ ( sK12_D @ SY391 @ SV159 @ SV57 ) @ SV57 )
                    | ~ ( in @ ( sK12_D @ SY391 @ SV159 @ SV57 ) @ SV159 )
                    | ~ ( in @ ( sK12_D @ SY391 @ SV159 @ SV57 ) @ SY391 ) )
                | ~ ~ ( ~ ( ( in @ ( sK12_D @ SY391 @ SV159 @ SV57 ) @ SV57 )
                          | ( in @ ( sK12_D @ SY391 @ SV159 @ SV57 ) @ SY391 ) )
                      | ~ ( ( in @ ( sK12_D @ SY391 @ SV159 @ SV57 ) @ SV159 )
                          | ( in @ ( sK12_D @ SY391 @ SV159 @ SV57 ) @ SY391 ) ) ) )
            | ( SY391
              = ( set_intersection2 @ SV57 @ SV159 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[685]) ).

thf(756,plain,
    ! [SV160: $i,SV57: $i] :
      ( ( ! [SY392: $i] :
            ( ( SY392
             != ( set_intersection2 @ SV57 @ SV160 ) )
            | ~ ( ~ ! [SY393: $i] :
                      ( ~ ( in @ SY393 @ SV57 )
                      | ~ ( in @ SY393 @ SV160 )
                      | ( in @ SY393 @ SY392 ) )
                | ~ ~ ( ~ ! [SY283: $i] :
                            ( ~ ( in @ SY283 @ SY392 )
                            | ( in @ SY283 @ SV57 ) )
                      | ~ ! [SY395: $i] :
                            ( ~ ( in @ SY395 @ SY392 )
                            | ( in @ SY395 @ SV160 ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[686]) ).

thf(757,plain,
    ! [SV119: $i] :
      ( ( ( in @ ( sK22_B @ SV119 ) @ SV119 )
        = $true )
      | ( ( SV119 = empty_set )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[687]) ).

thf(758,plain,
    ! [SV120: $i] :
      ( ( ( ( SV120 != empty_set ) )
        = $true )
      | ( ( ! [SY344: $i] :
              ~ ( in @ SY344 @ SV120 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[688]) ).

thf(759,plain,
    ! [SV121: $i,SV161: $i] :
      ( ( ~ ( ~ ( ~ ( in @ ( sK21_C @ SV161 @ SV121 ) @ SV161 )
                | ~ ( subset @ ( sK21_C @ SV161 @ SV121 ) @ SV121 ) )
            | ~ ( ( in @ ( sK21_C @ SV161 @ SV121 ) @ SV161 )
                | ( subset @ ( sK21_C @ SV161 @ SV121 ) @ SV121 ) ) )
        | ( SV161
          = ( powerset @ SV121 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[689]) ).

thf(760,plain,
    ! [SV122: $i,SV162: $i] :
      ( ( ( SV162
         != ( powerset @ SV122 ) )
        | ~ ( ~ ! [SY396: $i] :
                  ( ~ ( in @ SY396 @ SV162 )
                  | ( subset @ SY396 @ SV122 ) )
            | ~ ! [SY397: $i] :
                  ( ~ ( subset @ SY397 @ SV122 )
                  | ( in @ SY397 @ SV162 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[690]) ).

thf(761,plain,
    ! [SV163: $i,SV123: $i] :
      ( ( ( ( set_difference @ SV123 @ SV163 )
         != empty_set )
        | ( subset @ SV123 @ SV163 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[691]) ).

thf(762,plain,
    ! [SV164: $i,SV124: $i] :
      ( ( ~ ( subset @ SV124 @ SV164 )
        | ( ( set_difference @ SV124 @ SV164 )
          = empty_set ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[692]) ).

thf(763,plain,
    ! [SV165: $i,SV125: $i] :
      ( ( ( ( set_difference @ SV125 @ SV165 )
         != SV125 )
        | ( disjoint @ SV125 @ SV165 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[693]) ).

thf(764,plain,
    ! [SV166: $i,SV126: $i] :
      ( ( ~ ( disjoint @ SV126 @ SV166 )
        | ( ( set_difference @ SV126 @ SV166 )
          = SV126 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[694]) ).

thf(765,plain,
    ! [SV167: $i,SV58: $i] :
      ( ( ! [SY398: $i] :
            ( ~ ( ~ ( ! [SY399: $i,SY400: $i] :
                        ( ~ ( in @ SY399 @ SV58 )
                        | ~ ( in @ SY400 @ SV167 )
                        | ( ( sK16_D @ SY398 @ SV167 @ SV58 )
                         != ( ordered_pair @ SY399 @ SY400 ) ) )
                    | ~ ( in @ ( sK16_D @ SY398 @ SV167 @ SV58 ) @ SY398 ) )
                | ~ ( ~ ( ~ ~ ( ~ ( in @ ( sK17_SY205 @ SY398 @ SV167 @ SV58 ) @ SV58 )
                              | ~ ( in @ ( sK18_SY207 @ SY398 @ SV167 @ SV58 ) @ SV167 ) )
                        | ( ( sK16_D @ SY398 @ SV167 @ SV58 )
                         != ( ordered_pair @ ( sK17_SY205 @ SY398 @ SV167 @ SV58 ) @ ( sK18_SY207 @ SY398 @ SV167 @ SV58 ) ) ) )
                    | ( in @ ( sK16_D @ SY398 @ SV167 @ SV58 ) @ SY398 ) ) )
            | ( SY398
              = ( cartesian_product2 @ SV58 @ SV167 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[695]) ).

thf(766,plain,
    ! [SV168: $i,SV58: $i] :
      ( ( ! [SY401: $i] :
            ( ( SY401
             != ( cartesian_product2 @ SV58 @ SV168 ) )
            | ~ ( ~ ! [SY402: $i] :
                      ( ! [SY403: $i,SY404: $i] :
                          ( ~ ( in @ SY403 @ SV58 )
                          | ~ ( in @ SY404 @ SV168 )
                          | ( SY402
                           != ( ordered_pair @ SY403 @ SY404 ) ) )
                      | ( in @ SY402 @ SY401 ) )
                | ~ ! [SY405: $i] :
                      ( ~ ( in @ SY405 @ SY401 )
                      | ~ ( ~ ~ ( ~ ( in @ ( sK14_E @ SY405 @ SY401 @ SV168 @ SV58 ) @ SV58 )
                                | ~ ( in @ ( sK15_SY202 @ SY405 @ SY401 @ SV168 @ SV58 ) @ SV168 ) )
                          | ( SY405
                           != ( ordered_pair @ ( sK14_E @ SY405 @ SY401 @ SV168 @ SV58 ) @ ( sK15_SY202 @ SY405 @ SY401 @ SV168 @ SV58 ) ) ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[696]) ).

thf(767,plain,
    ! [SV100: $i,SV59: $i] :
      ( ( ! [SY326: $i,SY327: $i] :
            ( ~ ( in @ SV59 @ SY326 )
            | ~ ( in @ SV100 @ SY327 )
            | ( in @ ( ordered_pair @ SV59 @ SV100 ) @ ( cartesian_product2 @ SY326 @ SY327 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[697]) ).

thf(768,plain,
    ! [SV100: $i,SV59: $i] :
      ( ( ~ ( ~ ! [SY328: $i] :
                  ( ! [SY329: $i] :
                      ~ ( in @ ( ordered_pair @ SV59 @ SV100 ) @ ( cartesian_product2 @ SY328 @ SY329 ) )
                  | ( in @ SV59 @ SY328 ) )
            | ~ ! [SY330: $i,SY331: $i] :
                  ( ~ ( in @ ( ordered_pair @ SV59 @ SV100 ) @ ( cartesian_product2 @ SY330 @ SY331 ) )
                  | ( in @ SV100 @ SY331 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[698]) ).

thf(769,plain,
    ! [SV127: $i,SV169: $i] :
      ( ( ~ ( ~ ( ( ( sK23_C @ SV169 @ SV127 )
                 != SV127 )
                | ~ ( in @ ( sK23_C @ SV169 @ SV127 ) @ SV169 ) )
            | ~ ( ( ( sK23_C @ SV169 @ SV127 )
                  = SV127 )
                | ( in @ ( sK23_C @ SV169 @ SV127 ) @ SV169 ) ) )
        | ( SV169
          = ( singleton @ SV127 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[699]) ).

thf(770,plain,
    ! [SV128: $i,SV170: $i] :
      ( ( ( SV170
         != ( singleton @ SV128 ) )
        | ~ ( ~ ! [SY406: $i] :
                  ( ( SY406 != SV128 )
                  | ( in @ SY406 @ SV170 ) )
            | ~ ! [SY407: $i] :
                  ( ~ ( in @ SY407 @ SV170 )
                  | ( SY407 = SV128 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[700]) ).

thf(771,plain,
    ! [SV129: $i,SV171: $i] :
      ( ( ~ ( ~ ( in @ ( sK13_C @ SV171 @ SV129 ) @ SV129 )
            | ~ ~ ( in @ ( sK13_C @ SV171 @ SV129 ) @ SV171 ) )
        | ( subset @ SV129 @ SV171 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[701]) ).

thf(772,plain,
    ! [SV172: $i,SV130: $i] :
      ( ( ~ ( subset @ SV130 @ SV172 )
        | ! [SY408: $i] :
            ( ~ ( in @ SY408 @ SV130 )
            | ( in @ SY408 @ SV172 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[702]) ).

thf(773,plain,
    ! [SV173: $i,SV131: $i] :
      ( ( ( disjoint @ SV131 @ SV173 )
        | ~ ( ~ ( in @ ( sK25_C @ SV173 @ SV131 ) @ SV131 )
            | ~ ( in @ ( sK25_C @ SV173 @ SV131 ) @ SV173 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[703]) ).

thf(774,plain,
    ! [SV174: $i,SV132: $i] :
      ( ( ! [SY409: $i] :
            ( ~ ( in @ SY409 @ SV132 )
            | ~ ( in @ SY409 @ SV174 ) )
        | ~ ( disjoint @ SV132 @ SV174 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[704]) ).

thf(775,plain,
    ! [SV60: $i,SV175: $i] :
      ( ( ! [SY410: $i] :
            ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK20_D @ SY410 @ SV175 @ SV60 ) @ SY410 )
                          | ( ( sK20_D @ SY410 @ SV175 @ SV60 )
                           != SV60 ) )
                      | ~ ( ~ ( in @ ( sK20_D @ SY410 @ SV175 @ SV60 ) @ SY410 )
                          | ( ( sK20_D @ SY410 @ SV175 @ SV60 )
                           != SV175 ) ) )
                | ~ ( ( in @ ( sK20_D @ SY410 @ SV175 @ SV60 ) @ SY410 )
                    | ( ( sK20_D @ SY410 @ SV175 @ SV60 )
                      = SV60 )
                    | ( ( sK20_D @ SY410 @ SV175 @ SV60 )
                      = SV175 ) ) )
            | ( SY410
              = ( unordered_pair @ SV60 @ SV175 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[705]) ).

thf(776,plain,
    ! [SV176: $i,SV60: $i] :
      ( ( ! [SY411: $i] :
            ( ( SY411
             != ( unordered_pair @ SV60 @ SV176 ) )
            | ~ ( ~ ! [SY412: $i] :
                      ( ~ ( in @ SY412 @ SY411 )
                      | ( SY412 = SV60 )
                      | ( SY412 = SV176 ) )
                | ~ ~ ( ~ ! [SY307: $i] :
                            ( ( SY307 != SV60 )
                            | ( in @ SY307 @ SY411 ) )
                      | ~ ! [SY414: $i] :
                            ( ( SY414 != SV176 )
                            | ( in @ SY414 @ SY411 ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[706]) ).

thf(777,plain,
    ! [SV177: $i,SV133: $i] :
      ( ( ~ ( subset @ SV133 @ ( singleton @ SV177 ) )
        | ( SV133 = empty_set )
        | ( SV133
          = ( singleton @ SV177 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[707]) ).

thf(778,plain,
    ( ( ~ ! [SX0: $i] :
            ( ( SX0 != empty_set )
            | ! [SX1: $i] : ( subset @ SX0 @ ( singleton @ SX1 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[708]) ).

thf(779,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( SX0
             != ( singleton @ SX1 ) )
            | ( subset @ SX0 @ ( singleton @ SX1 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[708]) ).

thf(780,plain,
    ! [SV178: $i,SV134: $i] :
      ( ( ~ ( in @ SV134 @ SV178 )
        | ( subset @ ( singleton @ SV134 ) @ SV178 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[709]) ).

thf(781,plain,
    ! [SV179: $i,SV135: $i] :
      ( ( ~ ( subset @ ( singleton @ SV135 ) @ SV179 )
        | ( in @ SV135 @ SV179 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[710]) ).

thf(782,plain,
    ! [SV180: $i,SV136: $i] :
      ( ( ~ ( subset @ SV136 @ ( singleton @ SV180 ) )
        | ( SV136 = empty_set )
        | ( SV136
          = ( singleton @ SV180 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[711]) ).

thf(783,plain,
    ( ( ~ ! [SX0: $i] :
            ( ( SX0 != empty_set )
            | ! [SX1: $i] : ( subset @ SX0 @ ( singleton @ SX1 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[712]) ).

thf(784,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( SX0
             != ( singleton @ SX1 ) )
            | ( subset @ SX0 @ ( singleton @ SX1 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[712]) ).

thf(785,plain,
    ! [SV101: $i,SV61: $i] :
      ( ( ! [SY332: $i] :
            ( ! [SY333: $i] :
                ( ( ordered_pair @ SV61 @ SV101 )
               != ( ordered_pair @ SY332 @ SY333 ) )
            | ( SV61 = SY332 ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[713]) ).

thf(786,plain,
    ! [SV101: $i,SV61: $i] :
      ( ( ! [SY334: $i,SY335: $i] :
            ( ( ( ordered_pair @ SV61 @ SV101 )
             != ( ordered_pair @ SY334 @ SY335 ) )
            | ( SV101 = SY335 ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[714]) ).

thf(787,plain,
    ! [SV181: $i,SV137: $i] :
      ( ( ~ ( subset @ SV137 @ SV181 )
        | ~ ( subset @ SV181 @ SV137 )
        | ( SV137 = SV181 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[715]) ).

thf(788,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( SX0 != SX1 )
            | ( subset @ SX0 @ SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[716]) ).

thf(789,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( SX0 != SX1 )
            | ( subset @ SX1 @ SX0 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[716]) ).

thf(790,plain,
    ! [SV182: $i,SV138: $i] :
      ( ( ( SV138 = SV182 )
        | ~ ( subset @ SV138 @ SV182 )
        | ( proper_subset @ SV138 @ SV182 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[717]) ).

thf(791,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( proper_subset @ SX0 @ SX1 )
            | ( SX0 != SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[718]) ).

thf(792,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( proper_subset @ SX0 @ SX1 )
            | ( subset @ SX0 @ SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[718]) ).

thf(793,plain,
    ! [SV183: $i,SV139: $i] :
      ( ( ~ ( in @ SV139 @ SV183 )
        | ( subset @ ( singleton @ SV139 ) @ SV183 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[719]) ).

thf(794,plain,
    ! [SV184: $i,SV140: $i] :
      ( ( ~ ( subset @ ( singleton @ SV140 ) @ SV184 )
        | ( in @ SV140 @ SV184 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[720]) ).

thf(795,plain,
    ! [SV141: $i,SV185: $i] :
      ( ( ~ ( ~ ( ! [SY415: $i] :
                    ( ~ ( in @ ( sK10_C @ SV185 @ SV141 ) @ SY415 )
                    | ~ ( in @ SY415 @ SV141 ) )
                | ~ ( in @ ( sK10_C @ SV185 @ SV141 ) @ SV185 ) )
            | ~ ( ~ ( ~ ( in @ ( sK10_C @ SV185 @ SV141 ) @ ( sK11_SY201 @ SV185 @ SV141 ) )
                    | ~ ( in @ ( sK11_SY201 @ SV185 @ SV141 ) @ SV141 ) )
                | ( in @ ( sK10_C @ SV185 @ SV141 ) @ SV185 ) ) )
        | ( SV185
          = ( union @ SV141 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[721]) ).

thf(796,plain,
    ! [SV142: $i,SV186: $i] :
      ( ( ( SV186
         != ( union @ SV142 ) )
        | ~ ( ~ ! [SY416: $i] :
                  ( ! [SY375: $i] :
                      ( ~ ( in @ SY416 @ SY375 )
                      | ~ ( in @ SY375 @ SV142 ) )
                  | ( in @ SY416 @ SV186 ) )
            | ~ ! [SY418: $i] :
                  ( ~ ( in @ SY418 @ SV186 )
                  | ~ ( ~ ( in @ SY418 @ ( sK9_D @ SY418 @ SV186 @ SV142 ) )
                      | ~ ( in @ ( sK9_D @ SY418 @ SV186 @ SV142 ) @ SV142 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[722]) ).

thf(797,plain,
    ! [SV62: $i,SV102: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK5_C @ SV102 @ SV62 ) @ SV62 )
              | ~ ( in @ ( sK5_C @ SV102 @ SV62 ) @ SV102 ) ) )
        = $false )
      | ( ( SV62 = SV102 )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[723]) ).

thf(798,plain,
    ! [SV62: $i,SV102: $i] :
      ( ( ( ~ ( ( in @ ( sK5_C @ SV102 @ SV62 ) @ SV62 )
              | ( in @ ( sK5_C @ SV102 @ SV62 ) @ SV102 ) ) )
        = $false )
      | ( ( SV62 = SV102 )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[723]) ).

thf(799,plain,
    ! [SV187: $i,SV143: $i] :
      ( ( ( ( set_difference @ SV143 @ ( singleton @ SV187 ) )
         != SV143 )
        | ~ ( in @ SV187 @ SV143 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[724]) ).

thf(800,plain,
    ! [SV144: $i,SV188: $i] :
      ( ( ( in @ SV188 @ SV144 )
        | ( ( set_difference @ SV144 @ ( singleton @ SV188 ) )
          = SV144 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[725]) ).

thf(801,plain,
    ! [SV66: $i,SV5: $i,SV145: $i] :
      ( ( ( in @ SV145 @ SV5 )
        = $true )
      | ( ( subset @ SV5 @ ( set_difference @ SV66 @ ( singleton @ SV145 ) ) )
        = $true )
      | ( ( subset @ SV5 @ SV66 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[727]) ).

thf(802,plain,
    ! [SV111: $i,SV68: $i,SV103: $i,SV7: $i] :
      ( ( ( SV7 = SV103 )
        = $true )
      | ( ( ( ( unordered_pair @ SV7 @ SV68 )
           != ( unordered_pair @ SV103 @ SV111 ) ) )
        = $true )
      | ( ( SV7 = SV111 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[728]) ).

thf(803,plain,
    ! [SV104: $i,SV71: $i,SV10: $i] :
      ( ( ( subset @ SV10 @ SV71 )
        = $false )
      | ( ( ~ ( subset @ SV10 @ SV104 ) )
        = $true )
      | ( ( subset @ SV10 @ ( set_intersection2 @ SV71 @ SV104 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[729]) ).

thf(804,plain,
    ! [SV105: $i,SV72: $i,SV11: $i] :
      ( ( ( subset @ SV11 @ SV72 )
        = $false )
      | ( ( ~ ( subset @ SV72 @ SV105 ) )
        = $true )
      | ( ( subset @ SV11 @ SV105 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[730]) ).

thf(805,plain,
    ! [SV24: $i,SV106: $i,SV83: $i] :
      ( ( ( disjoint @ SV83 @ SV106 )
        = $false )
      | ( ( ~ ( subset @ SV24 @ SV83 ) )
        = $true )
      | ( ( disjoint @ SV24 @ SV106 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[734]) ).

thf(806,plain,
    ! [SV107: $i,SV86: $i,SV28: $i] :
      ( ( ( subset @ SV28 @ SV86 )
        = $false )
      | ( ( ~ ( subset @ SV107 @ SV86 ) )
        = $true )
      | ( ( subset @ ( set_union2 @ SV28 @ SV107 ) @ SV86 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[735]) ).

thf(807,plain,
    ! [SV53: $i,SV99: $i] :
      ( ( ( empty @ SV99 )
        = $false )
      | ( ( SV53 = SV99 )
        = $true )
      | ( ( empty @ SV53 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[741]) ).

thf(808,plain,
    ! [SV148: $i,SV189: $i,SV54: $i] :
      ( ( ~ ( in @ SV54 @ SV189 )
        | ~ ( in @ SV148 @ SV189 )
        | ( subset @ ( unordered_pair @ SV54 @ SV148 ) @ SV189 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[742]) ).

thf(809,plain,
    ! [SV54: $i] :
      ( ( ~ ! [SY260: $i,SY261: $i] :
              ( ~ ( subset @ ( unordered_pair @ SV54 @ SY260 ) @ SY261 )
              | ( in @ SV54 @ SY261 ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[743]) ).

thf(810,plain,
    ! [SV54: $i] :
      ( ( ~ ! [SY262: $i,SY263: $i] :
              ( ~ ( subset @ ( unordered_pair @ SV54 @ SY262 ) @ SY263 )
              | ( in @ SY262 @ SY263 ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[743]) ).

thf(811,plain,
    ! [SV55: $i,SV149: $i,SV190: $i] :
      ( ( ~ ( ~ ( ~ ( in @ ( sK8_D @ SV190 @ SV149 @ SV55 ) @ SV55 )
                | ( in @ ( sK8_D @ SV190 @ SV149 @ SV55 ) @ SV149 )
                | ~ ( in @ ( sK8_D @ SV190 @ SV149 @ SV55 ) @ SV190 ) )
            | ~ ~ ( ~ ( ( in @ ( sK8_D @ SV190 @ SV149 @ SV55 ) @ SV55 )
                      | ( in @ ( sK8_D @ SV190 @ SV149 @ SV55 ) @ SV190 ) )
                  | ~ ( ~ ( in @ ( sK8_D @ SV190 @ SV149 @ SV55 ) @ SV149 )
                      | ( in @ ( sK8_D @ SV190 @ SV149 @ SV55 ) @ SV190 ) ) ) )
        | ( SV190
          = ( set_difference @ SV55 @ SV149 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[744]) ).

thf(812,plain,
    ! [SV150: $i,SV55: $i,SV191: $i] :
      ( ( ( SV191
         != ( set_difference @ SV55 @ SV150 ) )
        | ~ ( ~ ! [SY419: $i] :
                  ( ~ ( in @ SY419 @ SV55 )
                  | ( in @ SY419 @ SV150 )
                  | ( in @ SY419 @ SV191 ) )
            | ~ ~ ( ~ ! [SY420: $i] :
                        ( ~ ( in @ SY420 @ SV191 )
                        | ( in @ SY420 @ SV55 ) )
                  | ~ ! [SY421: $i] :
                        ( ~ ( in @ SY421 @ SV191 )
                        | ~ ( in @ SY421 @ SV150 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[745]) ).

thf(813,plain,
    ! [SV56: $i,SV151: $i,SV192: $i] :
      ( ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK19_D @ SV192 @ SV151 @ SV56 ) @ SV192 )
                      | ~ ( in @ ( sK19_D @ SV192 @ SV151 @ SV56 ) @ SV56 ) )
                  | ~ ( ~ ( in @ ( sK19_D @ SV192 @ SV151 @ SV56 ) @ SV192 )
                      | ~ ( in @ ( sK19_D @ SV192 @ SV151 @ SV56 ) @ SV151 ) ) )
            | ~ ( ( in @ ( sK19_D @ SV192 @ SV151 @ SV56 ) @ SV192 )
                | ( in @ ( sK19_D @ SV192 @ SV151 @ SV56 ) @ SV56 )
                | ( in @ ( sK19_D @ SV192 @ SV151 @ SV56 ) @ SV151 ) ) )
        | ( SV192
          = ( set_union2 @ SV56 @ SV151 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[746]) ).

thf(814,plain,
    ! [SV152: $i,SV56: $i,SV193: $i] :
      ( ( ( SV193
         != ( set_union2 @ SV56 @ SV152 ) )
        | ~ ( ~ ! [SY422: $i] :
                  ( ~ ( in @ SY422 @ SV193 )
                  | ( in @ SY422 @ SV56 )
                  | ( in @ SY422 @ SV152 ) )
            | ~ ~ ( ~ ! [SY423: $i] :
                        ( ~ ( in @ SY423 @ SV56 )
                        | ( in @ SY423 @ SV193 ) )
                  | ~ ! [SY424: $i] :
                        ( ~ ( in @ SY424 @ SV152 )
                        | ( in @ SY424 @ SV193 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[747]) ).

thf(815,plain,
    ! [SV153: $i,SV113: $i] :
      ( ( ( disjoint @ SV113 @ SV153 )
        = $true )
      | ( ( in @ ( sK24_C @ SV153 @ SV113 ) @ ( set_intersection2 @ SV113 @ SV153 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[748]) ).

thf(816,plain,
    ! [SV154: $i,SV114: $i] :
      ( ( ( ! [SY390: $i] :
              ~ ( in @ SY390 @ ( set_intersection2 @ SV114 @ SV154 ) ) )
        = $true )
      | ( ( ~ ( disjoint @ SV114 @ SV154 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[749]) ).

thf(817,plain,
    ( ( ( in @ sK2_SY194 @ sK4_SY199 )
      = $false )
    | ( ( in @ sK1_A @ sK3_SY197 )
      = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[750]) ).

thf(818,plain,
    ! [SV155: $i,SV115: $i] :
      ( ( ( ( ( set_difference @ SV115 @ SV155 )
           != empty_set ) )
        = $true )
      | ( ( subset @ SV115 @ SV155 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[751]) ).

thf(819,plain,
    ! [SV156: $i,SV116: $i] :
      ( ( ( ~ ( subset @ SV116 @ SV156 ) )
        = $true )
      | ( ( ( set_difference @ SV116 @ SV156 )
          = empty_set )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[752]) ).

thf(820,plain,
    ! [SV157: $i,SV117: $i] :
      ( ( ( ( ( set_intersection2 @ SV117 @ SV157 )
           != empty_set ) )
        = $true )
      | ( ( disjoint @ SV117 @ SV157 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[753]) ).

thf(821,plain,
    ! [SV158: $i,SV118: $i] :
      ( ( ( ~ ( disjoint @ SV118 @ SV158 ) )
        = $true )
      | ( ( ( set_intersection2 @ SV118 @ SV158 )
          = empty_set )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[754]) ).

thf(822,plain,
    ! [SV57: $i,SV159: $i,SV194: $i] :
      ( ( ~ ( ~ ( ~ ( in @ ( sK12_D @ SV194 @ SV159 @ SV57 ) @ SV57 )
                | ~ ( in @ ( sK12_D @ SV194 @ SV159 @ SV57 ) @ SV159 )
                | ~ ( in @ ( sK12_D @ SV194 @ SV159 @ SV57 ) @ SV194 ) )
            | ~ ~ ( ~ ( ( in @ ( sK12_D @ SV194 @ SV159 @ SV57 ) @ SV57 )
                      | ( in @ ( sK12_D @ SV194 @ SV159 @ SV57 ) @ SV194 ) )
                  | ~ ( ( in @ ( sK12_D @ SV194 @ SV159 @ SV57 ) @ SV159 )
                      | ( in @ ( sK12_D @ SV194 @ SV159 @ SV57 ) @ SV194 ) ) ) )
        | ( SV194
          = ( set_intersection2 @ SV57 @ SV159 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[755]) ).

thf(823,plain,
    ! [SV160: $i,SV57: $i,SV195: $i] :
      ( ( ( SV195
         != ( set_intersection2 @ SV57 @ SV160 ) )
        | ~ ( ~ ! [SY425: $i] :
                  ( ~ ( in @ SY425 @ SV57 )
                  | ~ ( in @ SY425 @ SV160 )
                  | ( in @ SY425 @ SV195 ) )
            | ~ ~ ( ~ ! [SY426: $i] :
                        ( ~ ( in @ SY426 @ SV195 )
                        | ( in @ SY426 @ SV57 ) )
                  | ~ ! [SY427: $i] :
                        ( ~ ( in @ SY427 @ SV195 )
                        | ( in @ SY427 @ SV160 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[756]) ).

thf(824,plain,
    ! [SV120: $i] :
      ( ( ( SV120 = empty_set )
        = $false )
      | ( ( ! [SY344: $i] :
              ~ ( in @ SY344 @ SV120 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[758]) ).

thf(825,plain,
    ! [SV121: $i,SV161: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ ( sK21_C @ SV161 @ SV121 ) @ SV161 )
                  | ~ ( subset @ ( sK21_C @ SV161 @ SV121 ) @ SV121 ) )
              | ~ ( ( in @ ( sK21_C @ SV161 @ SV121 ) @ SV161 )
                  | ( subset @ ( sK21_C @ SV161 @ SV121 ) @ SV121 ) ) ) )
        = $true )
      | ( ( SV161
          = ( powerset @ SV121 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[759]) ).

thf(826,plain,
    ! [SV122: $i,SV162: $i] :
      ( ( ( ( SV162
           != ( powerset @ SV122 ) ) )
        = $true )
      | ( ( ~ ( ~ ! [SY396: $i] :
                    ( ~ ( in @ SY396 @ SV162 )
                    | ( subset @ SY396 @ SV122 ) )
              | ~ ! [SY397: $i] :
                    ( ~ ( subset @ SY397 @ SV122 )
                    | ( in @ SY397 @ SV162 ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[760]) ).

thf(827,plain,
    ! [SV163: $i,SV123: $i] :
      ( ( ( ( ( set_difference @ SV123 @ SV163 )
           != empty_set ) )
        = $true )
      | ( ( subset @ SV123 @ SV163 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[761]) ).

thf(828,plain,
    ! [SV164: $i,SV124: $i] :
      ( ( ( ~ ( subset @ SV124 @ SV164 ) )
        = $true )
      | ( ( ( set_difference @ SV124 @ SV164 )
          = empty_set )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[762]) ).

thf(829,plain,
    ! [SV165: $i,SV125: $i] :
      ( ( ( ( ( set_difference @ SV125 @ SV165 )
           != SV125 ) )
        = $true )
      | ( ( disjoint @ SV125 @ SV165 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[763]) ).

thf(830,plain,
    ! [SV166: $i,SV126: $i] :
      ( ( ( ~ ( disjoint @ SV126 @ SV166 ) )
        = $true )
      | ( ( ( set_difference @ SV126 @ SV166 )
          = SV126 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[764]) ).

thf(831,plain,
    ! [SV196: $i,SV167: $i,SV58: $i] :
      ( ( ~ ( ~ ( ! [SY428: $i,SY429: $i] :
                    ( ~ ( in @ SY428 @ SV58 )
                    | ~ ( in @ SY429 @ SV167 )
                    | ( ( sK16_D @ SV196 @ SV167 @ SV58 )
                     != ( ordered_pair @ SY428 @ SY429 ) ) )
                | ~ ( in @ ( sK16_D @ SV196 @ SV167 @ SV58 ) @ SV196 ) )
            | ~ ( ~ ( ~ ~ ( ~ ( in @ ( sK17_SY205 @ SV196 @ SV167 @ SV58 ) @ SV58 )
                          | ~ ( in @ ( sK18_SY207 @ SV196 @ SV167 @ SV58 ) @ SV167 ) )
                    | ( ( sK16_D @ SV196 @ SV167 @ SV58 )
                     != ( ordered_pair @ ( sK17_SY205 @ SV196 @ SV167 @ SV58 ) @ ( sK18_SY207 @ SV196 @ SV167 @ SV58 ) ) ) )
                | ( in @ ( sK16_D @ SV196 @ SV167 @ SV58 ) @ SV196 ) ) )
        | ( SV196
          = ( cartesian_product2 @ SV58 @ SV167 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[765]) ).

thf(832,plain,
    ! [SV168: $i,SV58: $i,SV197: $i] :
      ( ( ( SV197
         != ( cartesian_product2 @ SV58 @ SV168 ) )
        | ~ ( ~ ! [SY430: $i] :
                  ( ! [SY403: $i,SY404: $i] :
                      ( ~ ( in @ SY403 @ SV58 )
                      | ~ ( in @ SY404 @ SV168 )
                      | ( SY430
                       != ( ordered_pair @ SY403 @ SY404 ) ) )
                  | ( in @ SY430 @ SV197 ) )
            | ~ ! [SY433: $i] :
                  ( ~ ( in @ SY433 @ SV197 )
                  | ~ ( ~ ~ ( ~ ( in @ ( sK14_E @ SY433 @ SV197 @ SV168 @ SV58 ) @ SV58 )
                            | ~ ( in @ ( sK15_SY202 @ SY433 @ SV197 @ SV168 @ SV58 ) @ SV168 ) )
                      | ( SY433
                       != ( ordered_pair @ ( sK14_E @ SY433 @ SV197 @ SV168 @ SV58 ) @ ( sK15_SY202 @ SY433 @ SV197 @ SV168 @ SV58 ) ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[766]) ).

thf(833,plain,
    ! [SV100: $i,SV198: $i,SV59: $i] :
      ( ( ! [SY434: $i] :
            ( ~ ( in @ SV59 @ SV198 )
            | ~ ( in @ SV100 @ SY434 )
            | ( in @ ( ordered_pair @ SV59 @ SV100 ) @ ( cartesian_product2 @ SV198 @ SY434 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[767]) ).

thf(834,plain,
    ! [SV100: $i,SV59: $i] :
      ( ( ~ ! [SY328: $i] :
              ( ! [SY329: $i] :
                  ~ ( in @ ( ordered_pair @ SV59 @ SV100 ) @ ( cartesian_product2 @ SY328 @ SY329 ) )
              | ( in @ SV59 @ SY328 ) )
        | ~ ! [SY330: $i,SY331: $i] :
              ( ~ ( in @ ( ordered_pair @ SV59 @ SV100 ) @ ( cartesian_product2 @ SY330 @ SY331 ) )
              | ( in @ SV100 @ SY331 ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[768]) ).

thf(835,plain,
    ! [SV127: $i,SV169: $i] :
      ( ( ( ~ ( ~ ( ( ( sK23_C @ SV169 @ SV127 )
                   != SV127 )
                  | ~ ( in @ ( sK23_C @ SV169 @ SV127 ) @ SV169 ) )
              | ~ ( ( ( sK23_C @ SV169 @ SV127 )
                    = SV127 )
                  | ( in @ ( sK23_C @ SV169 @ SV127 ) @ SV169 ) ) ) )
        = $true )
      | ( ( SV169
          = ( singleton @ SV127 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[769]) ).

thf(836,plain,
    ! [SV128: $i,SV170: $i] :
      ( ( ( ( SV170
           != ( singleton @ SV128 ) ) )
        = $true )
      | ( ( ~ ( ~ ! [SY406: $i] :
                    ( ( SY406 != SV128 )
                    | ( in @ SY406 @ SV170 ) )
              | ~ ! [SY407: $i] :
                    ( ~ ( in @ SY407 @ SV170 )
                    | ( SY407 = SV128 ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[770]) ).

thf(837,plain,
    ! [SV129: $i,SV171: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK13_C @ SV171 @ SV129 ) @ SV129 )
              | ~ ~ ( in @ ( sK13_C @ SV171 @ SV129 ) @ SV171 ) ) )
        = $true )
      | ( ( subset @ SV129 @ SV171 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[771]) ).

thf(838,plain,
    ! [SV172: $i,SV130: $i] :
      ( ( ( ~ ( subset @ SV130 @ SV172 ) )
        = $true )
      | ( ( ! [SY408: $i] :
              ( ~ ( in @ SY408 @ SV130 )
              | ( in @ SY408 @ SV172 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[772]) ).

thf(839,plain,
    ! [SV173: $i,SV131: $i] :
      ( ( ( disjoint @ SV131 @ SV173 )
        = $true )
      | ( ( ~ ( ~ ( in @ ( sK25_C @ SV173 @ SV131 ) @ SV131 )
              | ~ ( in @ ( sK25_C @ SV173 @ SV131 ) @ SV173 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[773]) ).

thf(840,plain,
    ! [SV174: $i,SV132: $i] :
      ( ( ( ! [SY409: $i] :
              ( ~ ( in @ SY409 @ SV132 )
              | ~ ( in @ SY409 @ SV174 ) ) )
        = $true )
      | ( ( ~ ( disjoint @ SV132 @ SV174 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[774]) ).

thf(841,plain,
    ! [SV60: $i,SV175: $i,SV199: $i] :
      ( ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK20_D @ SV199 @ SV175 @ SV60 ) @ SV199 )
                      | ( ( sK20_D @ SV199 @ SV175 @ SV60 )
                       != SV60 ) )
                  | ~ ( ~ ( in @ ( sK20_D @ SV199 @ SV175 @ SV60 ) @ SV199 )
                      | ( ( sK20_D @ SV199 @ SV175 @ SV60 )
                       != SV175 ) ) )
            | ~ ( ( in @ ( sK20_D @ SV199 @ SV175 @ SV60 ) @ SV199 )
                | ( ( sK20_D @ SV199 @ SV175 @ SV60 )
                  = SV60 )
                | ( ( sK20_D @ SV199 @ SV175 @ SV60 )
                  = SV175 ) ) )
        | ( SV199
          = ( unordered_pair @ SV60 @ SV175 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[775]) ).

thf(842,plain,
    ! [SV176: $i,SV60: $i,SV200: $i] :
      ( ( ( SV200
         != ( unordered_pair @ SV60 @ SV176 ) )
        | ~ ( ~ ! [SY435: $i] :
                  ( ~ ( in @ SY435 @ SV200 )
                  | ( SY435 = SV60 )
                  | ( SY435 = SV176 ) )
            | ~ ~ ( ~ ! [SY436: $i] :
                        ( ( SY436 != SV60 )
                        | ( in @ SY436 @ SV200 ) )
                  | ~ ! [SY437: $i] :
                        ( ( SY437 != SV176 )
                        | ( in @ SY437 @ SV200 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[776]) ).

thf(843,plain,
    ! [SV177: $i,SV133: $i] :
      ( ( ( ~ ( subset @ SV133 @ ( singleton @ SV177 ) ) )
        = $true )
      | ( ( ( SV133 = empty_set )
          | ( SV133
            = ( singleton @ SV177 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[777]) ).

thf(844,plain,
    ( ( ! [SX0: $i] :
          ( ( SX0 != empty_set )
          | ! [SX1: $i] : ( subset @ SX0 @ ( singleton @ SX1 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[778]) ).

thf(845,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ( SX0
           != ( singleton @ SX1 ) )
          | ( subset @ SX0 @ ( singleton @ SX1 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[779]) ).

thf(846,plain,
    ! [SV178: $i,SV134: $i] :
      ( ( ( ~ ( in @ SV134 @ SV178 ) )
        = $true )
      | ( ( subset @ ( singleton @ SV134 ) @ SV178 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[780]) ).

thf(847,plain,
    ! [SV179: $i,SV135: $i] :
      ( ( ( ~ ( subset @ ( singleton @ SV135 ) @ SV179 ) )
        = $true )
      | ( ( in @ SV135 @ SV179 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[781]) ).

thf(848,plain,
    ! [SV180: $i,SV136: $i] :
      ( ( ( ~ ( subset @ SV136 @ ( singleton @ SV180 ) ) )
        = $true )
      | ( ( ( SV136 = empty_set )
          | ( SV136
            = ( singleton @ SV180 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[782]) ).

thf(849,plain,
    ( ( ! [SX0: $i] :
          ( ( SX0 != empty_set )
          | ! [SX1: $i] : ( subset @ SX0 @ ( singleton @ SX1 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[783]) ).

thf(850,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ( SX0
           != ( singleton @ SX1 ) )
          | ( subset @ SX0 @ ( singleton @ SX1 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[784]) ).

thf(851,plain,
    ! [SV201: $i,SV101: $i,SV61: $i] :
      ( ( ! [SY438: $i] :
            ( ( ordered_pair @ SV61 @ SV101 )
           != ( ordered_pair @ SV201 @ SY438 ) )
        | ( SV61 = SV201 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[785]) ).

thf(852,plain,
    ! [SV202: $i,SV101: $i,SV61: $i] :
      ( ( ! [SY439: $i] :
            ( ( ( ordered_pair @ SV61 @ SV101 )
             != ( ordered_pair @ SV202 @ SY439 ) )
            | ( SV101 = SY439 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[786]) ).

thf(853,plain,
    ! [SV181: $i,SV137: $i] :
      ( ( ( ~ ( subset @ SV137 @ SV181 )
          | ~ ( subset @ SV181 @ SV137 ) )
        = $true )
      | ( ( SV137 = SV181 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[787]) ).

thf(854,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ( SX0 != SX1 )
          | ( subset @ SX0 @ SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[788]) ).

thf(855,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ( SX0 != SX1 )
          | ( subset @ SX1 @ SX0 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[789]) ).

thf(856,plain,
    ! [SV182: $i,SV138: $i] :
      ( ( ( ( SV138 = SV182 )
          | ~ ( subset @ SV138 @ SV182 ) )
        = $true )
      | ( ( proper_subset @ SV138 @ SV182 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[790]) ).

thf(857,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( proper_subset @ SX0 @ SX1 )
          | ( SX0 != SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[791]) ).

thf(858,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( proper_subset @ SX0 @ SX1 )
          | ( subset @ SX0 @ SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[792]) ).

thf(859,plain,
    ! [SV183: $i,SV139: $i] :
      ( ( ( ~ ( in @ SV139 @ SV183 ) )
        = $true )
      | ( ( subset @ ( singleton @ SV139 ) @ SV183 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[793]) ).

thf(860,plain,
    ! [SV184: $i,SV140: $i] :
      ( ( ( ~ ( subset @ ( singleton @ SV140 ) @ SV184 ) )
        = $true )
      | ( ( in @ SV140 @ SV184 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[794]) ).

thf(861,plain,
    ! [SV141: $i,SV185: $i] :
      ( ( ( ~ ( ~ ( ! [SY415: $i] :
                      ( ~ ( in @ ( sK10_C @ SV185 @ SV141 ) @ SY415 )
                      | ~ ( in @ SY415 @ SV141 ) )
                  | ~ ( in @ ( sK10_C @ SV185 @ SV141 ) @ SV185 ) )
              | ~ ( ~ ( ~ ( in @ ( sK10_C @ SV185 @ SV141 ) @ ( sK11_SY201 @ SV185 @ SV141 ) )
                      | ~ ( in @ ( sK11_SY201 @ SV185 @ SV141 ) @ SV141 ) )
                  | ( in @ ( sK10_C @ SV185 @ SV141 ) @ SV185 ) ) ) )
        = $true )
      | ( ( SV185
          = ( union @ SV141 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[795]) ).

thf(862,plain,
    ! [SV142: $i,SV186: $i] :
      ( ( ( ( SV186
           != ( union @ SV142 ) ) )
        = $true )
      | ( ( ~ ( ~ ! [SY416: $i] :
                    ( ! [SY375: $i] :
                        ( ~ ( in @ SY416 @ SY375 )
                        | ~ ( in @ SY375 @ SV142 ) )
                    | ( in @ SY416 @ SV186 ) )
              | ~ ! [SY418: $i] :
                    ( ~ ( in @ SY418 @ SV186 )
                    | ~ ( ~ ( in @ SY418 @ ( sK9_D @ SY418 @ SV186 @ SV142 ) )
                        | ~ ( in @ ( sK9_D @ SY418 @ SV186 @ SV142 ) @ SV142 ) ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[796]) ).

thf(863,plain,
    ! [SV62: $i,SV102: $i] :
      ( ( ( ~ ( in @ ( sK5_C @ SV102 @ SV62 ) @ SV62 )
          | ~ ( in @ ( sK5_C @ SV102 @ SV62 ) @ SV102 ) )
        = $true )
      | ( ( SV62 = SV102 )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[797]) ).

thf(864,plain,
    ! [SV62: $i,SV102: $i] :
      ( ( ( ( in @ ( sK5_C @ SV102 @ SV62 ) @ SV62 )
          | ( in @ ( sK5_C @ SV102 @ SV62 ) @ SV102 ) )
        = $true )
      | ( ( SV62 = SV102 )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[798]) ).

thf(865,plain,
    ! [SV187: $i,SV143: $i] :
      ( ( ( ( ( set_difference @ SV143 @ ( singleton @ SV187 ) )
           != SV143 ) )
        = $true )
      | ( ( ~ ( in @ SV187 @ SV143 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[799]) ).

thf(866,plain,
    ! [SV144: $i,SV188: $i] :
      ( ( ( in @ SV188 @ SV144 )
        = $true )
      | ( ( ( set_difference @ SV144 @ ( singleton @ SV188 ) )
          = SV144 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[800]) ).

thf(867,plain,
    ! [SV111: $i,SV103: $i,SV68: $i,SV7: $i] :
      ( ( ( ( unordered_pair @ SV7 @ SV68 )
          = ( unordered_pair @ SV103 @ SV111 ) )
        = $false )
      | ( ( SV7 = SV103 )
        = $true )
      | ( ( SV7 = SV111 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[802]) ).

thf(868,plain,
    ! [SV71: $i,SV104: $i,SV10: $i] :
      ( ( ( subset @ SV10 @ SV104 )
        = $false )
      | ( ( subset @ SV10 @ SV71 )
        = $false )
      | ( ( subset @ SV10 @ ( set_intersection2 @ SV71 @ SV104 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[803]) ).

thf(869,plain,
    ! [SV11: $i,SV105: $i,SV72: $i] :
      ( ( ( subset @ SV72 @ SV105 )
        = $false )
      | ( ( subset @ SV11 @ SV72 )
        = $false )
      | ( ( subset @ SV11 @ SV105 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[804]) ).

thf(870,plain,
    ! [SV106: $i,SV83: $i,SV24: $i] :
      ( ( ( subset @ SV24 @ SV83 )
        = $false )
      | ( ( disjoint @ SV83 @ SV106 )
        = $false )
      | ( ( disjoint @ SV24 @ SV106 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[805]) ).

thf(871,plain,
    ! [SV28: $i,SV86: $i,SV107: $i] :
      ( ( ( subset @ SV107 @ SV86 )
        = $false )
      | ( ( subset @ SV28 @ SV86 )
        = $false )
      | ( ( subset @ ( set_union2 @ SV28 @ SV107 ) @ SV86 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[806]) ).

thf(872,plain,
    ! [SV148: $i,SV189: $i,SV54: $i] :
      ( ( ( ~ ( in @ SV54 @ SV189 )
          | ~ ( in @ SV148 @ SV189 ) )
        = $true )
      | ( ( subset @ ( unordered_pair @ SV54 @ SV148 ) @ SV189 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[808]) ).

thf(873,plain,
    ! [SV54: $i] :
      ( ( ! [SY260: $i,SY261: $i] :
            ( ~ ( subset @ ( unordered_pair @ SV54 @ SY260 ) @ SY261 )
            | ( in @ SV54 @ SY261 ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[809]) ).

thf(874,plain,
    ! [SV54: $i] :
      ( ( ! [SY262: $i,SY263: $i] :
            ( ~ ( subset @ ( unordered_pair @ SV54 @ SY262 ) @ SY263 )
            | ( in @ SY262 @ SY263 ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[810]) ).

thf(875,plain,
    ! [SV55: $i,SV149: $i,SV190: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ ( sK8_D @ SV190 @ SV149 @ SV55 ) @ SV55 )
                  | ( in @ ( sK8_D @ SV190 @ SV149 @ SV55 ) @ SV149 )
                  | ~ ( in @ ( sK8_D @ SV190 @ SV149 @ SV55 ) @ SV190 ) )
              | ~ ~ ( ~ ( ( in @ ( sK8_D @ SV190 @ SV149 @ SV55 ) @ SV55 )
                        | ( in @ ( sK8_D @ SV190 @ SV149 @ SV55 ) @ SV190 ) )
                    | ~ ( ~ ( in @ ( sK8_D @ SV190 @ SV149 @ SV55 ) @ SV149 )
                        | ( in @ ( sK8_D @ SV190 @ SV149 @ SV55 ) @ SV190 ) ) ) ) )
        = $true )
      | ( ( SV190
          = ( set_difference @ SV55 @ SV149 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[811]) ).

thf(876,plain,
    ! [SV150: $i,SV55: $i,SV191: $i] :
      ( ( ( ( SV191
           != ( set_difference @ SV55 @ SV150 ) ) )
        = $true )
      | ( ( ~ ( ~ ! [SY419: $i] :
                    ( ~ ( in @ SY419 @ SV55 )
                    | ( in @ SY419 @ SV150 )
                    | ( in @ SY419 @ SV191 ) )
              | ~ ~ ( ~ ! [SY420: $i] :
                          ( ~ ( in @ SY420 @ SV191 )
                          | ( in @ SY420 @ SV55 ) )
                    | ~ ! [SY421: $i] :
                          ( ~ ( in @ SY421 @ SV191 )
                          | ~ ( in @ SY421 @ SV150 ) ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[812]) ).

thf(877,plain,
    ! [SV56: $i,SV151: $i,SV192: $i] :
      ( ( ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK19_D @ SV192 @ SV151 @ SV56 ) @ SV192 )
                        | ~ ( in @ ( sK19_D @ SV192 @ SV151 @ SV56 ) @ SV56 ) )
                    | ~ ( ~ ( in @ ( sK19_D @ SV192 @ SV151 @ SV56 ) @ SV192 )
                        | ~ ( in @ ( sK19_D @ SV192 @ SV151 @ SV56 ) @ SV151 ) ) )
              | ~ ( ( in @ ( sK19_D @ SV192 @ SV151 @ SV56 ) @ SV192 )
                  | ( in @ ( sK19_D @ SV192 @ SV151 @ SV56 ) @ SV56 )
                  | ( in @ ( sK19_D @ SV192 @ SV151 @ SV56 ) @ SV151 ) ) ) )
        = $true )
      | ( ( SV192
          = ( set_union2 @ SV56 @ SV151 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[813]) ).

thf(878,plain,
    ! [SV152: $i,SV56: $i,SV193: $i] :
      ( ( ( ( SV193
           != ( set_union2 @ SV56 @ SV152 ) ) )
        = $true )
      | ( ( ~ ( ~ ! [SY422: $i] :
                    ( ~ ( in @ SY422 @ SV193 )
                    | ( in @ SY422 @ SV56 )
                    | ( in @ SY422 @ SV152 ) )
              | ~ ~ ( ~ ! [SY423: $i] :
                          ( ~ ( in @ SY423 @ SV56 )
                          | ( in @ SY423 @ SV193 ) )
                    | ~ ! [SY424: $i] :
                          ( ~ ( in @ SY424 @ SV152 )
                          | ( in @ SY424 @ SV193 ) ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[814]) ).

thf(879,plain,
    ! [SV154: $i,SV114: $i,SV203: $i] :
      ( ( ( ~ ( in @ SV203 @ ( set_intersection2 @ SV114 @ SV154 ) ) )
        = $true )
      | ( ( ~ ( disjoint @ SV114 @ SV154 ) )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[816]) ).

thf(880,plain,
    ! [SV155: $i,SV115: $i] :
      ( ( ( ( set_difference @ SV115 @ SV155 )
          = empty_set )
        = $false )
      | ( ( subset @ SV115 @ SV155 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[818]) ).

thf(881,plain,
    ! [SV156: $i,SV116: $i] :
      ( ( ( subset @ SV116 @ SV156 )
        = $false )
      | ( ( ( set_difference @ SV116 @ SV156 )
          = empty_set )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[819]) ).

thf(882,plain,
    ! [SV157: $i,SV117: $i] :
      ( ( ( ( set_intersection2 @ SV117 @ SV157 )
          = empty_set )
        = $false )
      | ( ( disjoint @ SV117 @ SV157 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[820]) ).

thf(883,plain,
    ! [SV158: $i,SV118: $i] :
      ( ( ( disjoint @ SV118 @ SV158 )
        = $false )
      | ( ( ( set_intersection2 @ SV118 @ SV158 )
          = empty_set )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[821]) ).

thf(884,plain,
    ! [SV57: $i,SV159: $i,SV194: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ ( sK12_D @ SV194 @ SV159 @ SV57 ) @ SV57 )
                  | ~ ( in @ ( sK12_D @ SV194 @ SV159 @ SV57 ) @ SV159 )
                  | ~ ( in @ ( sK12_D @ SV194 @ SV159 @ SV57 ) @ SV194 ) )
              | ~ ~ ( ~ ( ( in @ ( sK12_D @ SV194 @ SV159 @ SV57 ) @ SV57 )
                        | ( in @ ( sK12_D @ SV194 @ SV159 @ SV57 ) @ SV194 ) )
                    | ~ ( ( in @ ( sK12_D @ SV194 @ SV159 @ SV57 ) @ SV159 )
                        | ( in @ ( sK12_D @ SV194 @ SV159 @ SV57 ) @ SV194 ) ) ) ) )
        = $true )
      | ( ( SV194
          = ( set_intersection2 @ SV57 @ SV159 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[822]) ).

thf(885,plain,
    ! [SV160: $i,SV57: $i,SV195: $i] :
      ( ( ( ( SV195
           != ( set_intersection2 @ SV57 @ SV160 ) ) )
        = $true )
      | ( ( ~ ( ~ ! [SY425: $i] :
                    ( ~ ( in @ SY425 @ SV57 )
                    | ~ ( in @ SY425 @ SV160 )
                    | ( in @ SY425 @ SV195 ) )
              | ~ ~ ( ~ ! [SY426: $i] :
                          ( ~ ( in @ SY426 @ SV195 )
                          | ( in @ SY426 @ SV57 ) )
                    | ~ ! [SY427: $i] :
                          ( ~ ( in @ SY427 @ SV195 )
                          | ( in @ SY427 @ SV160 ) ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[823]) ).

thf(886,plain,
    ! [SV120: $i,SV204: $i] :
      ( ( ( ~ ( in @ SV204 @ SV120 ) )
        = $true )
      | ( ( SV120 = empty_set )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[824]) ).

thf(887,plain,
    ! [SV121: $i,SV161: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK21_C @ SV161 @ SV121 ) @ SV161 )
              | ~ ( subset @ ( sK21_C @ SV161 @ SV121 ) @ SV121 ) )
          | ~ ( ( in @ ( sK21_C @ SV161 @ SV121 ) @ SV161 )
              | ( subset @ ( sK21_C @ SV161 @ SV121 ) @ SV121 ) ) )
        = $false )
      | ( ( SV161
          = ( powerset @ SV121 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[825]) ).

thf(888,plain,
    ! [SV122: $i,SV162: $i] :
      ( ( ( SV162
          = ( powerset @ SV122 ) )
        = $false )
      | ( ( ~ ( ~ ! [SY396: $i] :
                    ( ~ ( in @ SY396 @ SV162 )
                    | ( subset @ SY396 @ SV122 ) )
              | ~ ! [SY397: $i] :
                    ( ~ ( subset @ SY397 @ SV122 )
                    | ( in @ SY397 @ SV162 ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[826]) ).

thf(889,plain,
    ! [SV163: $i,SV123: $i] :
      ( ( ( ( set_difference @ SV123 @ SV163 )
          = empty_set )
        = $false )
      | ( ( subset @ SV123 @ SV163 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[827]) ).

thf(890,plain,
    ! [SV164: $i,SV124: $i] :
      ( ( ( subset @ SV124 @ SV164 )
        = $false )
      | ( ( ( set_difference @ SV124 @ SV164 )
          = empty_set )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[828]) ).

thf(891,plain,
    ! [SV165: $i,SV125: $i] :
      ( ( ( ( set_difference @ SV125 @ SV165 )
          = SV125 )
        = $false )
      | ( ( disjoint @ SV125 @ SV165 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[829]) ).

thf(892,plain,
    ! [SV166: $i,SV126: $i] :
      ( ( ( disjoint @ SV126 @ SV166 )
        = $false )
      | ( ( ( set_difference @ SV126 @ SV166 )
          = SV126 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[830]) ).

thf(893,plain,
    ! [SV196: $i,SV167: $i,SV58: $i] :
      ( ( ( ~ ( ~ ( ! [SY428: $i,SY429: $i] :
                      ( ~ ( in @ SY428 @ SV58 )
                      | ~ ( in @ SY429 @ SV167 )
                      | ( ( sK16_D @ SV196 @ SV167 @ SV58 )
                       != ( ordered_pair @ SY428 @ SY429 ) ) )
                  | ~ ( in @ ( sK16_D @ SV196 @ SV167 @ SV58 ) @ SV196 ) )
              | ~ ( ~ ( ~ ~ ( ~ ( in @ ( sK17_SY205 @ SV196 @ SV167 @ SV58 ) @ SV58 )
                            | ~ ( in @ ( sK18_SY207 @ SV196 @ SV167 @ SV58 ) @ SV167 ) )
                      | ( ( sK16_D @ SV196 @ SV167 @ SV58 )
                       != ( ordered_pair @ ( sK17_SY205 @ SV196 @ SV167 @ SV58 ) @ ( sK18_SY207 @ SV196 @ SV167 @ SV58 ) ) ) )
                  | ( in @ ( sK16_D @ SV196 @ SV167 @ SV58 ) @ SV196 ) ) ) )
        = $true )
      | ( ( SV196
          = ( cartesian_product2 @ SV58 @ SV167 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[831]) ).

thf(894,plain,
    ! [SV168: $i,SV58: $i,SV197: $i] :
      ( ( ( ( SV197
           != ( cartesian_product2 @ SV58 @ SV168 ) ) )
        = $true )
      | ( ( ~ ( ~ ! [SY430: $i] :
                    ( ! [SY403: $i,SY404: $i] :
                        ( ~ ( in @ SY403 @ SV58 )
                        | ~ ( in @ SY404 @ SV168 )
                        | ( SY430
                         != ( ordered_pair @ SY403 @ SY404 ) ) )
                    | ( in @ SY430 @ SV197 ) )
              | ~ ! [SY433: $i] :
                    ( ~ ( in @ SY433 @ SV197 )
                    | ~ ( ~ ~ ( ~ ( in @ ( sK14_E @ SY433 @ SV197 @ SV168 @ SV58 ) @ SV58 )
                              | ~ ( in @ ( sK15_SY202 @ SY433 @ SV197 @ SV168 @ SV58 ) @ SV168 ) )
                        | ( SY433
                         != ( ordered_pair @ ( sK14_E @ SY433 @ SV197 @ SV168 @ SV58 ) @ ( sK15_SY202 @ SY433 @ SV197 @ SV168 @ SV58 ) ) ) ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[832]) ).

thf(895,plain,
    ! [SV205: $i,SV100: $i,SV198: $i,SV59: $i] :
      ( ( ~ ( in @ SV59 @ SV198 )
        | ~ ( in @ SV100 @ SV205 )
        | ( in @ ( ordered_pair @ SV59 @ SV100 ) @ ( cartesian_product2 @ SV198 @ SV205 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[833]) ).

thf(896,plain,
    ! [SV100: $i,SV59: $i] :
      ( ( ~ ! [SY328: $i] :
              ( ! [SY329: $i] :
                  ~ ( in @ ( ordered_pair @ SV59 @ SV100 ) @ ( cartesian_product2 @ SY328 @ SY329 ) )
              | ( in @ SV59 @ SY328 ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[834]) ).

thf(897,plain,
    ! [SV100: $i,SV59: $i] :
      ( ( ~ ! [SY330: $i,SY331: $i] :
              ( ~ ( in @ ( ordered_pair @ SV59 @ SV100 ) @ ( cartesian_product2 @ SY330 @ SY331 ) )
              | ( in @ SV100 @ SY331 ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[834]) ).

thf(898,plain,
    ! [SV127: $i,SV169: $i] :
      ( ( ( ~ ( ( ( sK23_C @ SV169 @ SV127 )
               != SV127 )
              | ~ ( in @ ( sK23_C @ SV169 @ SV127 ) @ SV169 ) )
          | ~ ( ( ( sK23_C @ SV169 @ SV127 )
                = SV127 )
              | ( in @ ( sK23_C @ SV169 @ SV127 ) @ SV169 ) ) )
        = $false )
      | ( ( SV169
          = ( singleton @ SV127 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[835]) ).

thf(899,plain,
    ! [SV128: $i,SV170: $i] :
      ( ( ( SV170
          = ( singleton @ SV128 ) )
        = $false )
      | ( ( ~ ( ~ ! [SY406: $i] :
                    ( ( SY406 != SV128 )
                    | ( in @ SY406 @ SV170 ) )
              | ~ ! [SY407: $i] :
                    ( ~ ( in @ SY407 @ SV170 )
                    | ( SY407 = SV128 ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[836]) ).

thf(900,plain,
    ! [SV129: $i,SV171: $i] :
      ( ( ( ~ ( in @ ( sK13_C @ SV171 @ SV129 ) @ SV129 )
          | ~ ~ ( in @ ( sK13_C @ SV171 @ SV129 ) @ SV171 ) )
        = $false )
      | ( ( subset @ SV129 @ SV171 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[837]) ).

thf(901,plain,
    ! [SV172: $i,SV130: $i] :
      ( ( ( subset @ SV130 @ SV172 )
        = $false )
      | ( ( ! [SY408: $i] :
              ( ~ ( in @ SY408 @ SV130 )
              | ( in @ SY408 @ SV172 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[838]) ).

thf(902,plain,
    ! [SV131: $i,SV173: $i] :
      ( ( ( ~ ( in @ ( sK25_C @ SV173 @ SV131 ) @ SV131 )
          | ~ ( in @ ( sK25_C @ SV173 @ SV131 ) @ SV173 ) )
        = $false )
      | ( ( disjoint @ SV131 @ SV173 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[839]) ).

thf(903,plain,
    ! [SV174: $i,SV132: $i,SV206: $i] :
      ( ( ( ~ ( in @ SV206 @ SV132 )
          | ~ ( in @ SV206 @ SV174 ) )
        = $true )
      | ( ( ~ ( disjoint @ SV132 @ SV174 ) )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[840]) ).

thf(904,plain,
    ! [SV60: $i,SV175: $i,SV199: $i] :
      ( ( ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK20_D @ SV199 @ SV175 @ SV60 ) @ SV199 )
                        | ( ( sK20_D @ SV199 @ SV175 @ SV60 )
                         != SV60 ) )
                    | ~ ( ~ ( in @ ( sK20_D @ SV199 @ SV175 @ SV60 ) @ SV199 )
                        | ( ( sK20_D @ SV199 @ SV175 @ SV60 )
                         != SV175 ) ) )
              | ~ ( ( in @ ( sK20_D @ SV199 @ SV175 @ SV60 ) @ SV199 )
                  | ( ( sK20_D @ SV199 @ SV175 @ SV60 )
                    = SV60 )
                  | ( ( sK20_D @ SV199 @ SV175 @ SV60 )
                    = SV175 ) ) ) )
        = $true )
      | ( ( SV199
          = ( unordered_pair @ SV60 @ SV175 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[841]) ).

thf(905,plain,
    ! [SV176: $i,SV60: $i,SV200: $i] :
      ( ( ( ( SV200
           != ( unordered_pair @ SV60 @ SV176 ) ) )
        = $true )
      | ( ( ~ ( ~ ! [SY435: $i] :
                    ( ~ ( in @ SY435 @ SV200 )
                    | ( SY435 = SV60 )
                    | ( SY435 = SV176 ) )
              | ~ ~ ( ~ ! [SY436: $i] :
                          ( ( SY436 != SV60 )
                          | ( in @ SY436 @ SV200 ) )
                    | ~ ! [SY437: $i] :
                          ( ( SY437 != SV176 )
                          | ( in @ SY437 @ SV200 ) ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[842]) ).

thf(906,plain,
    ! [SV177: $i,SV133: $i] :
      ( ( ( subset @ SV133 @ ( singleton @ SV177 ) )
        = $false )
      | ( ( ( SV133 = empty_set )
          | ( SV133
            = ( singleton @ SV177 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[843]) ).

thf(907,plain,
    ! [SV207: $i] :
      ( ( ( SV207 != empty_set )
        | ! [SY440: $i] : ( subset @ SV207 @ ( singleton @ SY440 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[844]) ).

thf(908,plain,
    ! [SV208: $i] :
      ( ( ! [SY441: $i] :
            ( ( SV208
             != ( singleton @ SY441 ) )
            | ( subset @ SV208 @ ( singleton @ SY441 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[845]) ).

thf(909,plain,
    ! [SV178: $i,SV134: $i] :
      ( ( ( in @ SV134 @ SV178 )
        = $false )
      | ( ( subset @ ( singleton @ SV134 ) @ SV178 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[846]) ).

thf(910,plain,
    ! [SV179: $i,SV135: $i] :
      ( ( ( subset @ ( singleton @ SV135 ) @ SV179 )
        = $false )
      | ( ( in @ SV135 @ SV179 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[847]) ).

thf(911,plain,
    ! [SV180: $i,SV136: $i] :
      ( ( ( subset @ SV136 @ ( singleton @ SV180 ) )
        = $false )
      | ( ( ( SV136 = empty_set )
          | ( SV136
            = ( singleton @ SV180 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[848]) ).

thf(912,plain,
    ! [SV209: $i] :
      ( ( ( SV209 != empty_set )
        | ! [SY442: $i] : ( subset @ SV209 @ ( singleton @ SY442 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[849]) ).

thf(913,plain,
    ! [SV210: $i] :
      ( ( ! [SY443: $i] :
            ( ( SV210
             != ( singleton @ SY443 ) )
            | ( subset @ SV210 @ ( singleton @ SY443 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[850]) ).

thf(914,plain,
    ! [SV201: $i,SV101: $i,SV61: $i] :
      ( ( ( ! [SY438: $i] :
              ( ( ordered_pair @ SV61 @ SV101 )
             != ( ordered_pair @ SV201 @ SY438 ) ) )
        = $true )
      | ( ( SV61 = SV201 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[851]) ).

thf(915,plain,
    ! [SV211: $i,SV202: $i,SV101: $i,SV61: $i] :
      ( ( ( ( ordered_pair @ SV61 @ SV101 )
         != ( ordered_pair @ SV202 @ SV211 ) )
        | ( SV101 = SV211 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[852]) ).

thf(916,plain,
    ! [SV181: $i,SV137: $i] :
      ( ( ( ~ ( subset @ SV137 @ SV181 ) )
        = $true )
      | ( ( ~ ( subset @ SV181 @ SV137 ) )
        = $true )
      | ( ( SV137 = SV181 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[853]) ).

thf(917,plain,
    ! [SV212: $i] :
      ( ( ! [SY444: $i] :
            ( ( SV212 != SY444 )
            | ( subset @ SV212 @ SY444 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[854]) ).

thf(918,plain,
    ! [SV213: $i] :
      ( ( ! [SY445: $i] :
            ( ( SV213 != SY445 )
            | ( subset @ SY445 @ SV213 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[855]) ).

thf(919,plain,
    ! [SV182: $i,SV138: $i] :
      ( ( ( SV138 = SV182 )
        = $true )
      | ( ( ~ ( subset @ SV138 @ SV182 ) )
        = $true )
      | ( ( proper_subset @ SV138 @ SV182 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[856]) ).

thf(920,plain,
    ! [SV214: $i] :
      ( ( ! [SY446: $i] :
            ( ~ ( proper_subset @ SV214 @ SY446 )
            | ( SV214 != SY446 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[857]) ).

thf(921,plain,
    ! [SV215: $i] :
      ( ( ! [SY447: $i] :
            ( ~ ( proper_subset @ SV215 @ SY447 )
            | ( subset @ SV215 @ SY447 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[858]) ).

thf(922,plain,
    ! [SV183: $i,SV139: $i] :
      ( ( ( in @ SV139 @ SV183 )
        = $false )
      | ( ( subset @ ( singleton @ SV139 ) @ SV183 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[859]) ).

thf(923,plain,
    ! [SV184: $i,SV140: $i] :
      ( ( ( subset @ ( singleton @ SV140 ) @ SV184 )
        = $false )
      | ( ( in @ SV140 @ SV184 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[860]) ).

thf(924,plain,
    ! [SV141: $i,SV185: $i] :
      ( ( ( ~ ( ! [SY415: $i] :
                  ( ~ ( in @ ( sK10_C @ SV185 @ SV141 ) @ SY415 )
                  | ~ ( in @ SY415 @ SV141 ) )
              | ~ ( in @ ( sK10_C @ SV185 @ SV141 ) @ SV185 ) )
          | ~ ( ~ ( ~ ( in @ ( sK10_C @ SV185 @ SV141 ) @ ( sK11_SY201 @ SV185 @ SV141 ) )
                  | ~ ( in @ ( sK11_SY201 @ SV185 @ SV141 ) @ SV141 ) )
              | ( in @ ( sK10_C @ SV185 @ SV141 ) @ SV185 ) ) )
        = $false )
      | ( ( SV185
          = ( union @ SV141 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[861]) ).

thf(925,plain,
    ! [SV142: $i,SV186: $i] :
      ( ( ( SV186
          = ( union @ SV142 ) )
        = $false )
      | ( ( ~ ( ~ ! [SY416: $i] :
                    ( ! [SY375: $i] :
                        ( ~ ( in @ SY416 @ SY375 )
                        | ~ ( in @ SY375 @ SV142 ) )
                    | ( in @ SY416 @ SV186 ) )
              | ~ ! [SY418: $i] :
                    ( ~ ( in @ SY418 @ SV186 )
                    | ~ ( ~ ( in @ SY418 @ ( sK9_D @ SY418 @ SV186 @ SV142 ) )
                        | ~ ( in @ ( sK9_D @ SY418 @ SV186 @ SV142 ) @ SV142 ) ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[862]) ).

thf(926,plain,
    ! [SV62: $i,SV102: $i] :
      ( ( ( ~ ( in @ ( sK5_C @ SV102 @ SV62 ) @ SV62 ) )
        = $true )
      | ( ( ~ ( in @ ( sK5_C @ SV102 @ SV62 ) @ SV102 ) )
        = $true )
      | ( ( SV62 = SV102 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[863]) ).

thf(927,plain,
    ! [SV62: $i,SV102: $i] :
      ( ( ( in @ ( sK5_C @ SV102 @ SV62 ) @ SV62 )
        = $true )
      | ( ( in @ ( sK5_C @ SV102 @ SV62 ) @ SV102 )
        = $true )
      | ( ( SV62 = SV102 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[864]) ).

thf(928,plain,
    ! [SV187: $i,SV143: $i] :
      ( ( ( ( set_difference @ SV143 @ ( singleton @ SV187 ) )
          = SV143 )
        = $false )
      | ( ( ~ ( in @ SV187 @ SV143 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[865]) ).

thf(929,plain,
    ! [SV148: $i,SV189: $i,SV54: $i] :
      ( ( ( ~ ( in @ SV54 @ SV189 ) )
        = $true )
      | ( ( ~ ( in @ SV148 @ SV189 ) )
        = $true )
      | ( ( subset @ ( unordered_pair @ SV54 @ SV148 ) @ SV189 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[872]) ).

thf(930,plain,
    ! [SV216: $i,SV54: $i] :
      ( ( ! [SY448: $i] :
            ( ~ ( subset @ ( unordered_pair @ SV54 @ SV216 ) @ SY448 )
            | ( in @ SV54 @ SY448 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[873]) ).

thf(931,plain,
    ! [SV217: $i,SV54: $i] :
      ( ( ! [SY449: $i] :
            ( ~ ( subset @ ( unordered_pair @ SV54 @ SV217 ) @ SY449 )
            | ( in @ SV217 @ SY449 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[874]) ).

thf(932,plain,
    ! [SV55: $i,SV149: $i,SV190: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK8_D @ SV190 @ SV149 @ SV55 ) @ SV55 )
              | ( in @ ( sK8_D @ SV190 @ SV149 @ SV55 ) @ SV149 )
              | ~ ( in @ ( sK8_D @ SV190 @ SV149 @ SV55 ) @ SV190 ) )
          | ~ ~ ( ~ ( ( in @ ( sK8_D @ SV190 @ SV149 @ SV55 ) @ SV55 )
                    | ( in @ ( sK8_D @ SV190 @ SV149 @ SV55 ) @ SV190 ) )
                | ~ ( ~ ( in @ ( sK8_D @ SV190 @ SV149 @ SV55 ) @ SV149 )
                    | ( in @ ( sK8_D @ SV190 @ SV149 @ SV55 ) @ SV190 ) ) ) )
        = $false )
      | ( ( SV190
          = ( set_difference @ SV55 @ SV149 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[875]) ).

thf(933,plain,
    ! [SV150: $i,SV55: $i,SV191: $i] :
      ( ( ( SV191
          = ( set_difference @ SV55 @ SV150 ) )
        = $false )
      | ( ( ~ ( ~ ! [SY419: $i] :
                    ( ~ ( in @ SY419 @ SV55 )
                    | ( in @ SY419 @ SV150 )
                    | ( in @ SY419 @ SV191 ) )
              | ~ ~ ( ~ ! [SY420: $i] :
                          ( ~ ( in @ SY420 @ SV191 )
                          | ( in @ SY420 @ SV55 ) )
                    | ~ ! [SY421: $i] :
                          ( ~ ( in @ SY421 @ SV191 )
                          | ~ ( in @ SY421 @ SV150 ) ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[876]) ).

thf(934,plain,
    ! [SV56: $i,SV151: $i,SV192: $i] :
      ( ( ( ~ ~ ( ~ ( ~ ( in @ ( sK19_D @ SV192 @ SV151 @ SV56 ) @ SV192 )
                    | ~ ( in @ ( sK19_D @ SV192 @ SV151 @ SV56 ) @ SV56 ) )
                | ~ ( ~ ( in @ ( sK19_D @ SV192 @ SV151 @ SV56 ) @ SV192 )
                    | ~ ( in @ ( sK19_D @ SV192 @ SV151 @ SV56 ) @ SV151 ) ) )
          | ~ ( ( in @ ( sK19_D @ SV192 @ SV151 @ SV56 ) @ SV192 )
              | ( in @ ( sK19_D @ SV192 @ SV151 @ SV56 ) @ SV56 )
              | ( in @ ( sK19_D @ SV192 @ SV151 @ SV56 ) @ SV151 ) ) )
        = $false )
      | ( ( SV192
          = ( set_union2 @ SV56 @ SV151 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[877]) ).

thf(935,plain,
    ! [SV152: $i,SV56: $i,SV193: $i] :
      ( ( ( SV193
          = ( set_union2 @ SV56 @ SV152 ) )
        = $false )
      | ( ( ~ ( ~ ! [SY422: $i] :
                    ( ~ ( in @ SY422 @ SV193 )
                    | ( in @ SY422 @ SV56 )
                    | ( in @ SY422 @ SV152 ) )
              | ~ ~ ( ~ ! [SY423: $i] :
                          ( ~ ( in @ SY423 @ SV56 )
                          | ( in @ SY423 @ SV193 ) )
                    | ~ ! [SY424: $i] :
                          ( ~ ( in @ SY424 @ SV152 )
                          | ( in @ SY424 @ SV193 ) ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[878]) ).

thf(936,plain,
    ! [SV154: $i,SV114: $i,SV203: $i] :
      ( ( ( in @ SV203 @ ( set_intersection2 @ SV114 @ SV154 ) )
        = $false )
      | ( ( ~ ( disjoint @ SV114 @ SV154 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[879]) ).

thf(937,plain,
    ! [SV57: $i,SV159: $i,SV194: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK12_D @ SV194 @ SV159 @ SV57 ) @ SV57 )
              | ~ ( in @ ( sK12_D @ SV194 @ SV159 @ SV57 ) @ SV159 )
              | ~ ( in @ ( sK12_D @ SV194 @ SV159 @ SV57 ) @ SV194 ) )
          | ~ ~ ( ~ ( ( in @ ( sK12_D @ SV194 @ SV159 @ SV57 ) @ SV57 )
                    | ( in @ ( sK12_D @ SV194 @ SV159 @ SV57 ) @ SV194 ) )
                | ~ ( ( in @ ( sK12_D @ SV194 @ SV159 @ SV57 ) @ SV159 )
                    | ( in @ ( sK12_D @ SV194 @ SV159 @ SV57 ) @ SV194 ) ) ) )
        = $false )
      | ( ( SV194
          = ( set_intersection2 @ SV57 @ SV159 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[884]) ).

thf(938,plain,
    ! [SV160: $i,SV57: $i,SV195: $i] :
      ( ( ( SV195
          = ( set_intersection2 @ SV57 @ SV160 ) )
        = $false )
      | ( ( ~ ( ~ ! [SY425: $i] :
                    ( ~ ( in @ SY425 @ SV57 )
                    | ~ ( in @ SY425 @ SV160 )
                    | ( in @ SY425 @ SV195 ) )
              | ~ ~ ( ~ ! [SY426: $i] :
                          ( ~ ( in @ SY426 @ SV195 )
                          | ( in @ SY426 @ SV57 ) )
                    | ~ ! [SY427: $i] :
                          ( ~ ( in @ SY427 @ SV195 )
                          | ( in @ SY427 @ SV160 ) ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[885]) ).

thf(939,plain,
    ! [SV120: $i,SV204: $i] :
      ( ( ( in @ SV204 @ SV120 )
        = $false )
      | ( ( SV120 = empty_set )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[886]) ).

thf(940,plain,
    ! [SV121: $i,SV161: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK21_C @ SV161 @ SV121 ) @ SV161 )
              | ~ ( subset @ ( sK21_C @ SV161 @ SV121 ) @ SV121 ) ) )
        = $false )
      | ( ( SV161
          = ( powerset @ SV121 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[887]) ).

thf(941,plain,
    ! [SV121: $i,SV161: $i] :
      ( ( ( ~ ( ( in @ ( sK21_C @ SV161 @ SV121 ) @ SV161 )
              | ( subset @ ( sK21_C @ SV161 @ SV121 ) @ SV121 ) ) )
        = $false )
      | ( ( SV161
          = ( powerset @ SV121 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[887]) ).

thf(942,plain,
    ! [SV122: $i,SV162: $i] :
      ( ( ( ~ ! [SY396: $i] :
                ( ~ ( in @ SY396 @ SV162 )
                | ( subset @ SY396 @ SV122 ) )
          | ~ ! [SY397: $i] :
                ( ~ ( subset @ SY397 @ SV122 )
                | ( in @ SY397 @ SV162 ) ) )
        = $false )
      | ( ( SV162
          = ( powerset @ SV122 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[888]) ).

thf(943,plain,
    ! [SV196: $i,SV167: $i,SV58: $i] :
      ( ( ( ~ ( ! [SY428: $i,SY429: $i] :
                  ( ~ ( in @ SY428 @ SV58 )
                  | ~ ( in @ SY429 @ SV167 )
                  | ( ( sK16_D @ SV196 @ SV167 @ SV58 )
                   != ( ordered_pair @ SY428 @ SY429 ) ) )
              | ~ ( in @ ( sK16_D @ SV196 @ SV167 @ SV58 ) @ SV196 ) )
          | ~ ( ~ ( ~ ~ ( ~ ( in @ ( sK17_SY205 @ SV196 @ SV167 @ SV58 ) @ SV58 )
                        | ~ ( in @ ( sK18_SY207 @ SV196 @ SV167 @ SV58 ) @ SV167 ) )
                  | ( ( sK16_D @ SV196 @ SV167 @ SV58 )
                   != ( ordered_pair @ ( sK17_SY205 @ SV196 @ SV167 @ SV58 ) @ ( sK18_SY207 @ SV196 @ SV167 @ SV58 ) ) ) )
              | ( in @ ( sK16_D @ SV196 @ SV167 @ SV58 ) @ SV196 ) ) )
        = $false )
      | ( ( SV196
          = ( cartesian_product2 @ SV58 @ SV167 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[893]) ).

thf(944,plain,
    ! [SV168: $i,SV58: $i,SV197: $i] :
      ( ( ( SV197
          = ( cartesian_product2 @ SV58 @ SV168 ) )
        = $false )
      | ( ( ~ ( ~ ! [SY430: $i] :
                    ( ! [SY403: $i,SY404: $i] :
                        ( ~ ( in @ SY403 @ SV58 )
                        | ~ ( in @ SY404 @ SV168 )
                        | ( SY430
                         != ( ordered_pair @ SY403 @ SY404 ) ) )
                    | ( in @ SY430 @ SV197 ) )
              | ~ ! [SY433: $i] :
                    ( ~ ( in @ SY433 @ SV197 )
                    | ~ ( ~ ~ ( ~ ( in @ ( sK14_E @ SY433 @ SV197 @ SV168 @ SV58 ) @ SV58 )
                              | ~ ( in @ ( sK15_SY202 @ SY433 @ SV197 @ SV168 @ SV58 ) @ SV168 ) )
                        | ( SY433
                         != ( ordered_pair @ ( sK14_E @ SY433 @ SV197 @ SV168 @ SV58 ) @ ( sK15_SY202 @ SY433 @ SV197 @ SV168 @ SV58 ) ) ) ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[894]) ).

thf(945,plain,
    ! [SV205: $i,SV100: $i,SV198: $i,SV59: $i] :
      ( ( ( ~ ( in @ SV59 @ SV198 )
          | ~ ( in @ SV100 @ SV205 ) )
        = $true )
      | ( ( in @ ( ordered_pair @ SV59 @ SV100 ) @ ( cartesian_product2 @ SV198 @ SV205 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[895]) ).

thf(946,plain,
    ! [SV100: $i,SV59: $i] :
      ( ( ! [SY328: $i] :
            ( ! [SY329: $i] :
                ~ ( in @ ( ordered_pair @ SV59 @ SV100 ) @ ( cartesian_product2 @ SY328 @ SY329 ) )
            | ( in @ SV59 @ SY328 ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[896]) ).

thf(947,plain,
    ! [SV100: $i,SV59: $i] :
      ( ( ! [SY330: $i,SY331: $i] :
            ( ~ ( in @ ( ordered_pair @ SV59 @ SV100 ) @ ( cartesian_product2 @ SY330 @ SY331 ) )
            | ( in @ SV100 @ SY331 ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[897]) ).

thf(948,plain,
    ! [SV127: $i,SV169: $i] :
      ( ( ( ~ ( ( ( sK23_C @ SV169 @ SV127 )
               != SV127 )
              | ~ ( in @ ( sK23_C @ SV169 @ SV127 ) @ SV169 ) ) )
        = $false )
      | ( ( SV169
          = ( singleton @ SV127 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[898]) ).

thf(949,plain,
    ! [SV127: $i,SV169: $i] :
      ( ( ( ~ ( ( ( sK23_C @ SV169 @ SV127 )
                = SV127 )
              | ( in @ ( sK23_C @ SV169 @ SV127 ) @ SV169 ) ) )
        = $false )
      | ( ( SV169
          = ( singleton @ SV127 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[898]) ).

thf(950,plain,
    ! [SV170: $i,SV128: $i] :
      ( ( ( ~ ! [SY406: $i] :
                ( ( SY406 != SV128 )
                | ( in @ SY406 @ SV170 ) )
          | ~ ! [SY407: $i] :
                ( ~ ( in @ SY407 @ SV170 )
                | ( SY407 = SV128 ) ) )
        = $false )
      | ( ( SV170
          = ( singleton @ SV128 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[899]) ).

thf(951,plain,
    ! [SV129: $i,SV171: $i] :
      ( ( ( ~ ( in @ ( sK13_C @ SV171 @ SV129 ) @ SV129 ) )
        = $false )
      | ( ( subset @ SV129 @ SV171 )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[900]) ).

thf(952,plain,
    ! [SV129: $i,SV171: $i] :
      ( ( ( ~ ~ ( in @ ( sK13_C @ SV171 @ SV129 ) @ SV171 ) )
        = $false )
      | ( ( subset @ SV129 @ SV171 )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[900]) ).

thf(953,plain,
    ! [SV172: $i,SV130: $i,SV218: $i] :
      ( ( ( ~ ( in @ SV218 @ SV130 )
          | ( in @ SV218 @ SV172 ) )
        = $true )
      | ( ( subset @ SV130 @ SV172 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[901]) ).

thf(954,plain,
    ! [SV131: $i,SV173: $i] :
      ( ( ( ~ ( in @ ( sK25_C @ SV173 @ SV131 ) @ SV131 ) )
        = $false )
      | ( ( disjoint @ SV131 @ SV173 )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[902]) ).

thf(955,plain,
    ! [SV131: $i,SV173: $i] :
      ( ( ( ~ ( in @ ( sK25_C @ SV173 @ SV131 ) @ SV173 ) )
        = $false )
      | ( ( disjoint @ SV131 @ SV173 )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[902]) ).

thf(956,plain,
    ! [SV174: $i,SV132: $i,SV206: $i] :
      ( ( ( ~ ( in @ SV206 @ SV132 ) )
        = $true )
      | ( ( ~ ( in @ SV206 @ SV174 ) )
        = $true )
      | ( ( ~ ( disjoint @ SV132 @ SV174 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[903]) ).

thf(957,plain,
    ! [SV60: $i,SV175: $i,SV199: $i] :
      ( ( ( ~ ~ ( ~ ( ~ ( in @ ( sK20_D @ SV199 @ SV175 @ SV60 ) @ SV199 )
                    | ( ( sK20_D @ SV199 @ SV175 @ SV60 )
                     != SV60 ) )
                | ~ ( ~ ( in @ ( sK20_D @ SV199 @ SV175 @ SV60 ) @ SV199 )
                    | ( ( sK20_D @ SV199 @ SV175 @ SV60 )
                     != SV175 ) ) )
          | ~ ( ( in @ ( sK20_D @ SV199 @ SV175 @ SV60 ) @ SV199 )
              | ( ( sK20_D @ SV199 @ SV175 @ SV60 )
                = SV60 )
              | ( ( sK20_D @ SV199 @ SV175 @ SV60 )
                = SV175 ) ) )
        = $false )
      | ( ( SV199
          = ( unordered_pair @ SV60 @ SV175 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[904]) ).

thf(958,plain,
    ! [SV176: $i,SV60: $i,SV200: $i] :
      ( ( ( SV200
          = ( unordered_pair @ SV60 @ SV176 ) )
        = $false )
      | ( ( ~ ( ~ ! [SY435: $i] :
                    ( ~ ( in @ SY435 @ SV200 )
                    | ( SY435 = SV60 )
                    | ( SY435 = SV176 ) )
              | ~ ~ ( ~ ! [SY436: $i] :
                          ( ( SY436 != SV60 )
                          | ( in @ SY436 @ SV200 ) )
                    | ~ ! [SY437: $i] :
                          ( ( SY437 != SV176 )
                          | ( in @ SY437 @ SV200 ) ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[905]) ).

thf(959,plain,
    ! [SV177: $i,SV133: $i] :
      ( ( ( SV133 = empty_set )
        = $true )
      | ( ( SV133
          = ( singleton @ SV177 ) )
        = $true )
      | ( ( subset @ SV133 @ ( singleton @ SV177 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[906]) ).

thf(960,plain,
    ! [SV207: $i] :
      ( ( ( ( SV207 != empty_set ) )
        = $true )
      | ( ( ! [SY440: $i] : ( subset @ SV207 @ ( singleton @ SY440 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[907]) ).

thf(961,plain,
    ! [SV219: $i,SV208: $i] :
      ( ( ( SV208
         != ( singleton @ SV219 ) )
        | ( subset @ SV208 @ ( singleton @ SV219 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[908]) ).

thf(962,plain,
    ! [SV180: $i,SV136: $i] :
      ( ( ( SV136 = empty_set )
        = $true )
      | ( ( SV136
          = ( singleton @ SV180 ) )
        = $true )
      | ( ( subset @ SV136 @ ( singleton @ SV180 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[911]) ).

thf(963,plain,
    ! [SV209: $i] :
      ( ( ( ( SV209 != empty_set ) )
        = $true )
      | ( ( ! [SY442: $i] : ( subset @ SV209 @ ( singleton @ SY442 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[912]) ).

thf(964,plain,
    ! [SV220: $i,SV210: $i] :
      ( ( ( SV210
         != ( singleton @ SV220 ) )
        | ( subset @ SV210 @ ( singleton @ SV220 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[913]) ).

thf(965,plain,
    ! [SV221: $i,SV201: $i,SV101: $i,SV61: $i] :
      ( ( ( ( ( ordered_pair @ SV61 @ SV101 )
           != ( ordered_pair @ SV201 @ SV221 ) ) )
        = $true )
      | ( ( SV61 = SV201 )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[914]) ).

thf(966,plain,
    ! [SV211: $i,SV202: $i,SV101: $i,SV61: $i] :
      ( ( ( ( ( ordered_pair @ SV61 @ SV101 )
           != ( ordered_pair @ SV202 @ SV211 ) ) )
        = $true )
      | ( ( SV101 = SV211 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[915]) ).

thf(967,plain,
    ! [SV181: $i,SV137: $i] :
      ( ( ( subset @ SV137 @ SV181 )
        = $false )
      | ( ( ~ ( subset @ SV181 @ SV137 ) )
        = $true )
      | ( ( SV137 = SV181 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[916]) ).

thf(968,plain,
    ! [SV222: $i,SV212: $i] :
      ( ( ( SV212 != SV222 )
        | ( subset @ SV212 @ SV222 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[917]) ).

thf(969,plain,
    ! [SV223: $i,SV213: $i] :
      ( ( ( SV213 != SV223 )
        | ( subset @ SV223 @ SV213 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[918]) ).

thf(970,plain,
    ! [SV182: $i,SV138: $i] :
      ( ( ( subset @ SV138 @ SV182 )
        = $false )
      | ( ( SV138 = SV182 )
        = $true )
      | ( ( proper_subset @ SV138 @ SV182 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[919]) ).

thf(971,plain,
    ! [SV224: $i,SV214: $i] :
      ( ( ~ ( proper_subset @ SV214 @ SV224 )
        | ( SV214 != SV224 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[920]) ).

thf(972,plain,
    ! [SV225: $i,SV215: $i] :
      ( ( ~ ( proper_subset @ SV215 @ SV225 )
        | ( subset @ SV215 @ SV225 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[921]) ).

thf(973,plain,
    ! [SV141: $i,SV185: $i] :
      ( ( ( ~ ( ! [SY415: $i] :
                  ( ~ ( in @ ( sK10_C @ SV185 @ SV141 ) @ SY415 )
                  | ~ ( in @ SY415 @ SV141 ) )
              | ~ ( in @ ( sK10_C @ SV185 @ SV141 ) @ SV185 ) ) )
        = $false )
      | ( ( SV185
          = ( union @ SV141 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[924]) ).

thf(974,plain,
    ! [SV141: $i,SV185: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ ( sK10_C @ SV185 @ SV141 ) @ ( sK11_SY201 @ SV185 @ SV141 ) )
                  | ~ ( in @ ( sK11_SY201 @ SV185 @ SV141 ) @ SV141 ) )
              | ( in @ ( sK10_C @ SV185 @ SV141 ) @ SV185 ) ) )
        = $false )
      | ( ( SV185
          = ( union @ SV141 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[924]) ).

thf(975,plain,
    ! [SV186: $i,SV142: $i] :
      ( ( ( ~ ! [SY416: $i] :
                ( ! [SY375: $i] :
                    ( ~ ( in @ SY416 @ SY375 )
                    | ~ ( in @ SY375 @ SV142 ) )
                | ( in @ SY416 @ SV186 ) )
          | ~ ! [SY418: $i] :
                ( ~ ( in @ SY418 @ SV186 )
                | ~ ( ~ ( in @ SY418 @ ( sK9_D @ SY418 @ SV186 @ SV142 ) )
                    | ~ ( in @ ( sK9_D @ SY418 @ SV186 @ SV142 ) @ SV142 ) ) ) )
        = $false )
      | ( ( SV186
          = ( union @ SV142 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[925]) ).

thf(976,plain,
    ! [SV62: $i,SV102: $i] :
      ( ( ( in @ ( sK5_C @ SV102 @ SV62 ) @ SV62 )
        = $false )
      | ( ( ~ ( in @ ( sK5_C @ SV102 @ SV62 ) @ SV102 ) )
        = $true )
      | ( ( SV62 = SV102 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[926]) ).

thf(977,plain,
    ! [SV143: $i,SV187: $i] :
      ( ( ( in @ SV187 @ SV143 )
        = $false )
      | ( ( ( set_difference @ SV143 @ ( singleton @ SV187 ) )
          = SV143 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[928]) ).

thf(978,plain,
    ! [SV148: $i,SV189: $i,SV54: $i] :
      ( ( ( in @ SV54 @ SV189 )
        = $false )
      | ( ( ~ ( in @ SV148 @ SV189 ) )
        = $true )
      | ( ( subset @ ( unordered_pair @ SV54 @ SV148 ) @ SV189 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[929]) ).

thf(979,plain,
    ! [SV226: $i,SV216: $i,SV54: $i] :
      ( ( ~ ( subset @ ( unordered_pair @ SV54 @ SV216 ) @ SV226 )
        | ( in @ SV54 @ SV226 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[930]) ).

thf(980,plain,
    ! [SV227: $i,SV217: $i,SV54: $i] :
      ( ( ~ ( subset @ ( unordered_pair @ SV54 @ SV217 ) @ SV227 )
        | ( in @ SV217 @ SV227 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[931]) ).

thf(981,plain,
    ! [SV55: $i,SV149: $i,SV190: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK8_D @ SV190 @ SV149 @ SV55 ) @ SV55 )
              | ( in @ ( sK8_D @ SV190 @ SV149 @ SV55 ) @ SV149 )
              | ~ ( in @ ( sK8_D @ SV190 @ SV149 @ SV55 ) @ SV190 ) ) )
        = $false )
      | ( ( SV190
          = ( set_difference @ SV55 @ SV149 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[932]) ).

thf(982,plain,
    ! [SV55: $i,SV149: $i,SV190: $i] :
      ( ( ( ~ ~ ( ~ ( ( in @ ( sK8_D @ SV190 @ SV149 @ SV55 ) @ SV55 )
                    | ( in @ ( sK8_D @ SV190 @ SV149 @ SV55 ) @ SV190 ) )
                | ~ ( ~ ( in @ ( sK8_D @ SV190 @ SV149 @ SV55 ) @ SV149 )
                    | ( in @ ( sK8_D @ SV190 @ SV149 @ SV55 ) @ SV190 ) ) ) )
        = $false )
      | ( ( SV190
          = ( set_difference @ SV55 @ SV149 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[932]) ).

thf(983,plain,
    ! [SV191: $i,SV150: $i,SV55: $i] :
      ( ( ( ~ ! [SY419: $i] :
                ( ~ ( in @ SY419 @ SV55 )
                | ( in @ SY419 @ SV150 )
                | ( in @ SY419 @ SV191 ) )
          | ~ ~ ( ~ ! [SY420: $i] :
                      ( ~ ( in @ SY420 @ SV191 )
                      | ( in @ SY420 @ SV55 ) )
                | ~ ! [SY421: $i] :
                      ( ~ ( in @ SY421 @ SV191 )
                      | ~ ( in @ SY421 @ SV150 ) ) ) )
        = $false )
      | ( ( SV191
          = ( set_difference @ SV55 @ SV150 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[933]) ).

thf(984,plain,
    ! [SV56: $i,SV151: $i,SV192: $i] :
      ( ( ( ~ ~ ( ~ ( ~ ( in @ ( sK19_D @ SV192 @ SV151 @ SV56 ) @ SV192 )
                    | ~ ( in @ ( sK19_D @ SV192 @ SV151 @ SV56 ) @ SV56 ) )
                | ~ ( ~ ( in @ ( sK19_D @ SV192 @ SV151 @ SV56 ) @ SV192 )
                    | ~ ( in @ ( sK19_D @ SV192 @ SV151 @ SV56 ) @ SV151 ) ) ) )
        = $false )
      | ( ( SV192
          = ( set_union2 @ SV56 @ SV151 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[934]) ).

thf(985,plain,
    ! [SV56: $i,SV151: $i,SV192: $i] :
      ( ( ( ~ ( ( in @ ( sK19_D @ SV192 @ SV151 @ SV56 ) @ SV192 )
              | ( in @ ( sK19_D @ SV192 @ SV151 @ SV56 ) @ SV56 )
              | ( in @ ( sK19_D @ SV192 @ SV151 @ SV56 ) @ SV151 ) ) )
        = $false )
      | ( ( SV192
          = ( set_union2 @ SV56 @ SV151 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[934]) ).

thf(986,plain,
    ! [SV152: $i,SV56: $i,SV193: $i] :
      ( ( ( ~ ! [SY422: $i] :
                ( ~ ( in @ SY422 @ SV193 )
                | ( in @ SY422 @ SV56 )
                | ( in @ SY422 @ SV152 ) )
          | ~ ~ ( ~ ! [SY423: $i] :
                      ( ~ ( in @ SY423 @ SV56 )
                      | ( in @ SY423 @ SV193 ) )
                | ~ ! [SY424: $i] :
                      ( ~ ( in @ SY424 @ SV152 )
                      | ( in @ SY424 @ SV193 ) ) ) )
        = $false )
      | ( ( SV193
          = ( set_union2 @ SV56 @ SV152 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[935]) ).

thf(987,plain,
    ! [SV203: $i,SV154: $i,SV114: $i] :
      ( ( ( disjoint @ SV114 @ SV154 )
        = $false )
      | ( ( in @ SV203 @ ( set_intersection2 @ SV114 @ SV154 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[936]) ).

thf(988,plain,
    ! [SV57: $i,SV159: $i,SV194: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK12_D @ SV194 @ SV159 @ SV57 ) @ SV57 )
              | ~ ( in @ ( sK12_D @ SV194 @ SV159 @ SV57 ) @ SV159 )
              | ~ ( in @ ( sK12_D @ SV194 @ SV159 @ SV57 ) @ SV194 ) ) )
        = $false )
      | ( ( SV194
          = ( set_intersection2 @ SV57 @ SV159 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[937]) ).

thf(989,plain,
    ! [SV57: $i,SV159: $i,SV194: $i] :
      ( ( ( ~ ~ ( ~ ( ( in @ ( sK12_D @ SV194 @ SV159 @ SV57 ) @ SV57 )
                    | ( in @ ( sK12_D @ SV194 @ SV159 @ SV57 ) @ SV194 ) )
                | ~ ( ( in @ ( sK12_D @ SV194 @ SV159 @ SV57 ) @ SV159 )
                    | ( in @ ( sK12_D @ SV194 @ SV159 @ SV57 ) @ SV194 ) ) ) )
        = $false )
      | ( ( SV194
          = ( set_intersection2 @ SV57 @ SV159 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[937]) ).

thf(990,plain,
    ! [SV195: $i,SV160: $i,SV57: $i] :
      ( ( ( ~ ! [SY425: $i] :
                ( ~ ( in @ SY425 @ SV57 )
                | ~ ( in @ SY425 @ SV160 )
                | ( in @ SY425 @ SV195 ) )
          | ~ ~ ( ~ ! [SY426: $i] :
                      ( ~ ( in @ SY426 @ SV195 )
                      | ( in @ SY426 @ SV57 ) )
                | ~ ! [SY427: $i] :
                      ( ~ ( in @ SY427 @ SV195 )
                      | ( in @ SY427 @ SV160 ) ) ) )
        = $false )
      | ( ( SV195
          = ( set_intersection2 @ SV57 @ SV160 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[938]) ).

thf(991,plain,
    ! [SV121: $i,SV161: $i] :
      ( ( ( ~ ( in @ ( sK21_C @ SV161 @ SV121 ) @ SV161 )
          | ~ ( subset @ ( sK21_C @ SV161 @ SV121 ) @ SV121 ) )
        = $true )
      | ( ( SV161
          = ( powerset @ SV121 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[940]) ).

thf(992,plain,
    ! [SV121: $i,SV161: $i] :
      ( ( ( ( in @ ( sK21_C @ SV161 @ SV121 ) @ SV161 )
          | ( subset @ ( sK21_C @ SV161 @ SV121 ) @ SV121 ) )
        = $true )
      | ( ( SV161
          = ( powerset @ SV121 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[941]) ).

thf(993,plain,
    ! [SV122: $i,SV162: $i] :
      ( ( ( ~ ! [SY396: $i] :
                ( ~ ( in @ SY396 @ SV162 )
                | ( subset @ SY396 @ SV122 ) ) )
        = $false )
      | ( ( SV162
          = ( powerset @ SV122 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[942]) ).

thf(994,plain,
    ! [SV162: $i,SV122: $i] :
      ( ( ( ~ ! [SY397: $i] :
                ( ~ ( subset @ SY397 @ SV122 )
                | ( in @ SY397 @ SV162 ) ) )
        = $false )
      | ( ( SV162
          = ( powerset @ SV122 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[942]) ).

thf(995,plain,
    ! [SV196: $i,SV167: $i,SV58: $i] :
      ( ( ( ~ ( ! [SY428: $i,SY429: $i] :
                  ( ~ ( in @ SY428 @ SV58 )
                  | ~ ( in @ SY429 @ SV167 )
                  | ( ( sK16_D @ SV196 @ SV167 @ SV58 )
                   != ( ordered_pair @ SY428 @ SY429 ) ) )
              | ~ ( in @ ( sK16_D @ SV196 @ SV167 @ SV58 ) @ SV196 ) ) )
        = $false )
      | ( ( SV196
          = ( cartesian_product2 @ SV58 @ SV167 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[943]) ).

thf(996,plain,
    ! [SV58: $i,SV167: $i,SV196: $i] :
      ( ( ( ~ ( ~ ( ~ ~ ( ~ ( in @ ( sK17_SY205 @ SV196 @ SV167 @ SV58 ) @ SV58 )
                        | ~ ( in @ ( sK18_SY207 @ SV196 @ SV167 @ SV58 ) @ SV167 ) )
                  | ( ( sK16_D @ SV196 @ SV167 @ SV58 )
                   != ( ordered_pair @ ( sK17_SY205 @ SV196 @ SV167 @ SV58 ) @ ( sK18_SY207 @ SV196 @ SV167 @ SV58 ) ) ) )
              | ( in @ ( sK16_D @ SV196 @ SV167 @ SV58 ) @ SV196 ) ) )
        = $false )
      | ( ( SV196
          = ( cartesian_product2 @ SV58 @ SV167 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[943]) ).

thf(997,plain,
    ! [SV197: $i,SV168: $i,SV58: $i] :
      ( ( ( ~ ! [SY430: $i] :
                ( ! [SY403: $i,SY404: $i] :
                    ( ~ ( in @ SY403 @ SV58 )
                    | ~ ( in @ SY404 @ SV168 )
                    | ( SY430
                     != ( ordered_pair @ SY403 @ SY404 ) ) )
                | ( in @ SY430 @ SV197 ) )
          | ~ ! [SY433: $i] :
                ( ~ ( in @ SY433 @ SV197 )
                | ~ ( ~ ~ ( ~ ( in @ ( sK14_E @ SY433 @ SV197 @ SV168 @ SV58 ) @ SV58 )
                          | ~ ( in @ ( sK15_SY202 @ SY433 @ SV197 @ SV168 @ SV58 ) @ SV168 ) )
                    | ( SY433
                     != ( ordered_pair @ ( sK14_E @ SY433 @ SV197 @ SV168 @ SV58 ) @ ( sK15_SY202 @ SY433 @ SV197 @ SV168 @ SV58 ) ) ) ) ) )
        = $false )
      | ( ( SV197
          = ( cartesian_product2 @ SV58 @ SV168 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[944]) ).

thf(998,plain,
    ! [SV205: $i,SV100: $i,SV198: $i,SV59: $i] :
      ( ( ( ~ ( in @ SV59 @ SV198 ) )
        = $true )
      | ( ( ~ ( in @ SV100 @ SV205 ) )
        = $true )
      | ( ( in @ ( ordered_pair @ SV59 @ SV100 ) @ ( cartesian_product2 @ SV198 @ SV205 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[945]) ).

thf(999,plain,
    ! [SV228: $i,SV100: $i,SV59: $i] :
      ( ( ! [SY450: $i] :
            ~ ( in @ ( ordered_pair @ SV59 @ SV100 ) @ ( cartesian_product2 @ SV228 @ SY450 ) )
        | ( in @ SV59 @ SV228 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[946]) ).

thf(1000,plain,
    ! [SV229: $i,SV100: $i,SV59: $i] :
      ( ( ! [SY451: $i] :
            ( ~ ( in @ ( ordered_pair @ SV59 @ SV100 ) @ ( cartesian_product2 @ SV229 @ SY451 ) )
            | ( in @ SV100 @ SY451 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[947]) ).

thf(1001,plain,
    ! [SV127: $i,SV169: $i] :
      ( ( ( ( ( sK23_C @ SV169 @ SV127 )
           != SV127 )
          | ~ ( in @ ( sK23_C @ SV169 @ SV127 ) @ SV169 ) )
        = $true )
      | ( ( SV169
          = ( singleton @ SV127 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[948]) ).

thf(1002,plain,
    ! [SV127: $i,SV169: $i] :
      ( ( ( ( ( sK23_C @ SV169 @ SV127 )
            = SV127 )
          | ( in @ ( sK23_C @ SV169 @ SV127 ) @ SV169 ) )
        = $true )
      | ( ( SV169
          = ( singleton @ SV127 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[949]) ).

thf(1003,plain,
    ! [SV170: $i,SV128: $i] :
      ( ( ( ~ ! [SY406: $i] :
                ( ( SY406 != SV128 )
                | ( in @ SY406 @ SV170 ) ) )
        = $false )
      | ( ( SV170
          = ( singleton @ SV128 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[950]) ).

thf(1004,plain,
    ! [SV128: $i,SV170: $i] :
      ( ( ( ~ ! [SY407: $i] :
                ( ~ ( in @ SY407 @ SV170 )
                | ( SY407 = SV128 ) ) )
        = $false )
      | ( ( SV170
          = ( singleton @ SV128 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[950]) ).

thf(1005,plain,
    ! [SV129: $i,SV171: $i] :
      ( ( ( in @ ( sK13_C @ SV171 @ SV129 ) @ SV129 )
        = $true )
      | ( ( subset @ SV129 @ SV171 )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[951]) ).

thf(1006,plain,
    ! [SV129: $i,SV171: $i] :
      ( ( ( ~ ( in @ ( sK13_C @ SV171 @ SV129 ) @ SV171 ) )
        = $true )
      | ( ( subset @ SV129 @ SV171 )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[952]) ).

thf(1007,plain,
    ! [SV172: $i,SV130: $i,SV218: $i] :
      ( ( ( ~ ( in @ SV218 @ SV130 ) )
        = $true )
      | ( ( in @ SV218 @ SV172 )
        = $true )
      | ( ( subset @ SV130 @ SV172 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[953]) ).

thf(1008,plain,
    ! [SV131: $i,SV173: $i] :
      ( ( ( in @ ( sK25_C @ SV173 @ SV131 ) @ SV131 )
        = $true )
      | ( ( disjoint @ SV131 @ SV173 )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[954]) ).

thf(1009,plain,
    ! [SV131: $i,SV173: $i] :
      ( ( ( in @ ( sK25_C @ SV173 @ SV131 ) @ SV173 )
        = $true )
      | ( ( disjoint @ SV131 @ SV173 )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[955]) ).

thf(1010,plain,
    ! [SV174: $i,SV132: $i,SV206: $i] :
      ( ( ( in @ SV206 @ SV132 )
        = $false )
      | ( ( ~ ( in @ SV206 @ SV174 ) )
        = $true )
      | ( ( ~ ( disjoint @ SV132 @ SV174 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[956]) ).

thf(1011,plain,
    ! [SV60: $i,SV175: $i,SV199: $i] :
      ( ( ( ~ ~ ( ~ ( ~ ( in @ ( sK20_D @ SV199 @ SV175 @ SV60 ) @ SV199 )
                    | ( ( sK20_D @ SV199 @ SV175 @ SV60 )
                     != SV60 ) )
                | ~ ( ~ ( in @ ( sK20_D @ SV199 @ SV175 @ SV60 ) @ SV199 )
                    | ( ( sK20_D @ SV199 @ SV175 @ SV60 )
                     != SV175 ) ) ) )
        = $false )
      | ( ( SV199
          = ( unordered_pair @ SV60 @ SV175 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[957]) ).

thf(1012,plain,
    ! [SV60: $i,SV175: $i,SV199: $i] :
      ( ( ( ~ ( ( in @ ( sK20_D @ SV199 @ SV175 @ SV60 ) @ SV199 )
              | ( ( sK20_D @ SV199 @ SV175 @ SV60 )
                = SV60 )
              | ( ( sK20_D @ SV199 @ SV175 @ SV60 )
                = SV175 ) ) )
        = $false )
      | ( ( SV199
          = ( unordered_pair @ SV60 @ SV175 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[957]) ).

thf(1013,plain,
    ! [SV176: $i,SV60: $i,SV200: $i] :
      ( ( ( ~ ! [SY435: $i] :
                ( ~ ( in @ SY435 @ SV200 )
                | ( SY435 = SV60 )
                | ( SY435 = SV176 ) )
          | ~ ~ ( ~ ! [SY436: $i] :
                      ( ( SY436 != SV60 )
                      | ( in @ SY436 @ SV200 ) )
                | ~ ! [SY437: $i] :
                      ( ( SY437 != SV176 )
                      | ( in @ SY437 @ SV200 ) ) ) )
        = $false )
      | ( ( SV200
          = ( unordered_pair @ SV60 @ SV176 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[958]) ).

thf(1014,plain,
    ! [SV207: $i] :
      ( ( ( SV207 = empty_set )
        = $false )
      | ( ( ! [SY440: $i] : ( subset @ SV207 @ ( singleton @ SY440 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[960]) ).

thf(1015,plain,
    ! [SV219: $i,SV208: $i] :
      ( ( ( ( SV208
           != ( singleton @ SV219 ) ) )
        = $true )
      | ( ( subset @ SV208 @ ( singleton @ SV219 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[961]) ).

thf(1016,plain,
    ! [SV209: $i] :
      ( ( ( SV209 = empty_set )
        = $false )
      | ( ( ! [SY442: $i] : ( subset @ SV209 @ ( singleton @ SY442 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[963]) ).

thf(1017,plain,
    ! [SV220: $i,SV210: $i] :
      ( ( ( ( SV210
           != ( singleton @ SV220 ) ) )
        = $true )
      | ( ( subset @ SV210 @ ( singleton @ SV220 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[964]) ).

thf(1018,plain,
    ! [SV221: $i,SV201: $i,SV101: $i,SV61: $i] :
      ( ( ( ( ordered_pair @ SV61 @ SV101 )
          = ( ordered_pair @ SV201 @ SV221 ) )
        = $false )
      | ( ( SV61 = SV201 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[965]) ).

thf(1019,plain,
    ! [SV211: $i,SV202: $i,SV101: $i,SV61: $i] :
      ( ( ( ( ordered_pair @ SV61 @ SV101 )
          = ( ordered_pair @ SV202 @ SV211 ) )
        = $false )
      | ( ( SV101 = SV211 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[966]) ).

thf(1020,plain,
    ! [SV137: $i,SV181: $i] :
      ( ( ( subset @ SV181 @ SV137 )
        = $false )
      | ( ( subset @ SV137 @ SV181 )
        = $false )
      | ( ( SV137 = SV181 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[967]) ).

thf(1021,plain,
    ! [SV222: $i,SV212: $i] :
      ( ( ( ( SV212 != SV222 ) )
        = $true )
      | ( ( subset @ SV212 @ SV222 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[968]) ).

thf(1022,plain,
    ! [SV223: $i,SV213: $i] :
      ( ( ( ( SV213 != SV223 ) )
        = $true )
      | ( ( subset @ SV223 @ SV213 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[969]) ).

thf(1023,plain,
    ! [SV224: $i,SV214: $i] :
      ( ( ( ~ ( proper_subset @ SV214 @ SV224 ) )
        = $true )
      | ( ( ( SV214 != SV224 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[971]) ).

thf(1024,plain,
    ! [SV225: $i,SV215: $i] :
      ( ( ( ~ ( proper_subset @ SV215 @ SV225 ) )
        = $true )
      | ( ( subset @ SV215 @ SV225 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[972]) ).

thf(1025,plain,
    ! [SV141: $i,SV185: $i] :
      ( ( ( ! [SY415: $i] :
              ( ~ ( in @ ( sK10_C @ SV185 @ SV141 ) @ SY415 )
              | ~ ( in @ SY415 @ SV141 ) )
          | ~ ( in @ ( sK10_C @ SV185 @ SV141 ) @ SV185 ) )
        = $true )
      | ( ( SV185
          = ( union @ SV141 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[973]) ).

thf(1026,plain,
    ! [SV141: $i,SV185: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK10_C @ SV185 @ SV141 ) @ ( sK11_SY201 @ SV185 @ SV141 ) )
              | ~ ( in @ ( sK11_SY201 @ SV185 @ SV141 ) @ SV141 ) )
          | ( in @ ( sK10_C @ SV185 @ SV141 ) @ SV185 ) )
        = $true )
      | ( ( SV185
          = ( union @ SV141 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[974]) ).

thf(1027,plain,
    ! [SV186: $i,SV142: $i] :
      ( ( ( ~ ! [SY416: $i] :
                ( ! [SY375: $i] :
                    ( ~ ( in @ SY416 @ SY375 )
                    | ~ ( in @ SY375 @ SV142 ) )
                | ( in @ SY416 @ SV186 ) ) )
        = $false )
      | ( ( SV186
          = ( union @ SV142 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[975]) ).

thf(1028,plain,
    ! [SV142: $i,SV186: $i] :
      ( ( ( ~ ! [SY418: $i] :
                ( ~ ( in @ SY418 @ SV186 )
                | ~ ( ~ ( in @ SY418 @ ( sK9_D @ SY418 @ SV186 @ SV142 ) )
                    | ~ ( in @ ( sK9_D @ SY418 @ SV186 @ SV142 ) @ SV142 ) ) ) )
        = $false )
      | ( ( SV186
          = ( union @ SV142 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[975]) ).

thf(1029,plain,
    ! [SV62: $i,SV102: $i] :
      ( ( ( in @ ( sK5_C @ SV102 @ SV62 ) @ SV102 )
        = $false )
      | ( ( in @ ( sK5_C @ SV102 @ SV62 ) @ SV62 )
        = $false )
      | ( ( SV62 = SV102 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[976]) ).

thf(1030,plain,
    ! [SV54: $i,SV189: $i,SV148: $i] :
      ( ( ( in @ SV148 @ SV189 )
        = $false )
      | ( ( in @ SV54 @ SV189 )
        = $false )
      | ( ( subset @ ( unordered_pair @ SV54 @ SV148 ) @ SV189 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[978]) ).

thf(1031,plain,
    ! [SV226: $i,SV216: $i,SV54: $i] :
      ( ( ( ~ ( subset @ ( unordered_pair @ SV54 @ SV216 ) @ SV226 ) )
        = $true )
      | ( ( in @ SV54 @ SV226 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[979]) ).

thf(1032,plain,
    ! [SV227: $i,SV217: $i,SV54: $i] :
      ( ( ( ~ ( subset @ ( unordered_pair @ SV54 @ SV217 ) @ SV227 ) )
        = $true )
      | ( ( in @ SV217 @ SV227 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[980]) ).

thf(1033,plain,
    ! [SV55: $i,SV149: $i,SV190: $i] :
      ( ( ( ~ ( in @ ( sK8_D @ SV190 @ SV149 @ SV55 ) @ SV55 )
          | ( in @ ( sK8_D @ SV190 @ SV149 @ SV55 ) @ SV149 )
          | ~ ( in @ ( sK8_D @ SV190 @ SV149 @ SV55 ) @ SV190 ) )
        = $true )
      | ( ( SV190
          = ( set_difference @ SV55 @ SV149 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[981]) ).

thf(1034,plain,
    ! [SV55: $i,SV149: $i,SV190: $i] :
      ( ( ( ~ ( ~ ( ( in @ ( sK8_D @ SV190 @ SV149 @ SV55 ) @ SV55 )
                  | ( in @ ( sK8_D @ SV190 @ SV149 @ SV55 ) @ SV190 ) )
              | ~ ( ~ ( in @ ( sK8_D @ SV190 @ SV149 @ SV55 ) @ SV149 )
                  | ( in @ ( sK8_D @ SV190 @ SV149 @ SV55 ) @ SV190 ) ) ) )
        = $true )
      | ( ( SV190
          = ( set_difference @ SV55 @ SV149 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[982]) ).

thf(1035,plain,
    ! [SV191: $i,SV150: $i,SV55: $i] :
      ( ( ( ~ ! [SY419: $i] :
                ( ~ ( in @ SY419 @ SV55 )
                | ( in @ SY419 @ SV150 )
                | ( in @ SY419 @ SV191 ) ) )
        = $false )
      | ( ( SV191
          = ( set_difference @ SV55 @ SV150 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[983]) ).

thf(1036,plain,
    ! [SV150: $i,SV55: $i,SV191: $i] :
      ( ( ( ~ ~ ( ~ ! [SY420: $i] :
                      ( ~ ( in @ SY420 @ SV191 )
                      | ( in @ SY420 @ SV55 ) )
                | ~ ! [SY421: $i] :
                      ( ~ ( in @ SY421 @ SV191 )
                      | ~ ( in @ SY421 @ SV150 ) ) ) )
        = $false )
      | ( ( SV191
          = ( set_difference @ SV55 @ SV150 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[983]) ).

thf(1037,plain,
    ! [SV56: $i,SV151: $i,SV192: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ ( sK19_D @ SV192 @ SV151 @ SV56 ) @ SV192 )
                  | ~ ( in @ ( sK19_D @ SV192 @ SV151 @ SV56 ) @ SV56 ) )
              | ~ ( ~ ( in @ ( sK19_D @ SV192 @ SV151 @ SV56 ) @ SV192 )
                  | ~ ( in @ ( sK19_D @ SV192 @ SV151 @ SV56 ) @ SV151 ) ) ) )
        = $true )
      | ( ( SV192
          = ( set_union2 @ SV56 @ SV151 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[984]) ).

thf(1038,plain,
    ! [SV56: $i,SV151: $i,SV192: $i] :
      ( ( ( ( in @ ( sK19_D @ SV192 @ SV151 @ SV56 ) @ SV192 )
          | ( in @ ( sK19_D @ SV192 @ SV151 @ SV56 ) @ SV56 )
          | ( in @ ( sK19_D @ SV192 @ SV151 @ SV56 ) @ SV151 ) )
        = $true )
      | ( ( SV192
          = ( set_union2 @ SV56 @ SV151 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[985]) ).

thf(1039,plain,
    ! [SV152: $i,SV56: $i,SV193: $i] :
      ( ( ( ~ ! [SY422: $i] :
                ( ~ ( in @ SY422 @ SV193 )
                | ( in @ SY422 @ SV56 )
                | ( in @ SY422 @ SV152 ) ) )
        = $false )
      | ( ( SV193
          = ( set_union2 @ SV56 @ SV152 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[986]) ).

thf(1040,plain,
    ! [SV152: $i,SV193: $i,SV56: $i] :
      ( ( ( ~ ~ ( ~ ! [SY423: $i] :
                      ( ~ ( in @ SY423 @ SV56 )
                      | ( in @ SY423 @ SV193 ) )
                | ~ ! [SY424: $i] :
                      ( ~ ( in @ SY424 @ SV152 )
                      | ( in @ SY424 @ SV193 ) ) ) )
        = $false )
      | ( ( SV193
          = ( set_union2 @ SV56 @ SV152 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[986]) ).

thf(1041,plain,
    ! [SV57: $i,SV159: $i,SV194: $i] :
      ( ( ( ~ ( in @ ( sK12_D @ SV194 @ SV159 @ SV57 ) @ SV57 )
          | ~ ( in @ ( sK12_D @ SV194 @ SV159 @ SV57 ) @ SV159 )
          | ~ ( in @ ( sK12_D @ SV194 @ SV159 @ SV57 ) @ SV194 ) )
        = $true )
      | ( ( SV194
          = ( set_intersection2 @ SV57 @ SV159 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[988]) ).

thf(1042,plain,
    ! [SV57: $i,SV159: $i,SV194: $i] :
      ( ( ( ~ ( ~ ( ( in @ ( sK12_D @ SV194 @ SV159 @ SV57 ) @ SV57 )
                  | ( in @ ( sK12_D @ SV194 @ SV159 @ SV57 ) @ SV194 ) )
              | ~ ( ( in @ ( sK12_D @ SV194 @ SV159 @ SV57 ) @ SV159 )
                  | ( in @ ( sK12_D @ SV194 @ SV159 @ SV57 ) @ SV194 ) ) ) )
        = $true )
      | ( ( SV194
          = ( set_intersection2 @ SV57 @ SV159 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[989]) ).

thf(1043,plain,
    ! [SV195: $i,SV160: $i,SV57: $i] :
      ( ( ( ~ ! [SY425: $i] :
                ( ~ ( in @ SY425 @ SV57 )
                | ~ ( in @ SY425 @ SV160 )
                | ( in @ SY425 @ SV195 ) ) )
        = $false )
      | ( ( SV195
          = ( set_intersection2 @ SV57 @ SV160 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[990]) ).

thf(1044,plain,
    ! [SV160: $i,SV57: $i,SV195: $i] :
      ( ( ( ~ ~ ( ~ ! [SY426: $i] :
                      ( ~ ( in @ SY426 @ SV195 )
                      | ( in @ SY426 @ SV57 ) )
                | ~ ! [SY427: $i] :
                      ( ~ ( in @ SY427 @ SV195 )
                      | ( in @ SY427 @ SV160 ) ) ) )
        = $false )
      | ( ( SV195
          = ( set_intersection2 @ SV57 @ SV160 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[990]) ).

thf(1045,plain,
    ! [SV121: $i,SV161: $i] :
      ( ( ( ~ ( in @ ( sK21_C @ SV161 @ SV121 ) @ SV161 ) )
        = $true )
      | ( ( ~ ( subset @ ( sK21_C @ SV161 @ SV121 ) @ SV121 ) )
        = $true )
      | ( ( SV161
          = ( powerset @ SV121 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[991]) ).

thf(1046,plain,
    ! [SV121: $i,SV161: $i] :
      ( ( ( in @ ( sK21_C @ SV161 @ SV121 ) @ SV161 )
        = $true )
      | ( ( subset @ ( sK21_C @ SV161 @ SV121 ) @ SV121 )
        = $true )
      | ( ( SV161
          = ( powerset @ SV121 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[992]) ).

thf(1047,plain,
    ! [SV122: $i,SV162: $i] :
      ( ( ( ! [SY396: $i] :
              ( ~ ( in @ SY396 @ SV162 )
              | ( subset @ SY396 @ SV122 ) ) )
        = $true )
      | ( ( SV162
          = ( powerset @ SV122 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[993]) ).

thf(1048,plain,
    ! [SV162: $i,SV122: $i] :
      ( ( ( ! [SY397: $i] :
              ( ~ ( subset @ SY397 @ SV122 )
              | ( in @ SY397 @ SV162 ) ) )
        = $true )
      | ( ( SV162
          = ( powerset @ SV122 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[994]) ).

thf(1049,plain,
    ! [SV196: $i,SV167: $i,SV58: $i] :
      ( ( ( ! [SY428: $i,SY429: $i] :
              ( ~ ( in @ SY428 @ SV58 )
              | ~ ( in @ SY429 @ SV167 )
              | ( ( sK16_D @ SV196 @ SV167 @ SV58 )
               != ( ordered_pair @ SY428 @ SY429 ) ) )
          | ~ ( in @ ( sK16_D @ SV196 @ SV167 @ SV58 ) @ SV196 ) )
        = $true )
      | ( ( SV196
          = ( cartesian_product2 @ SV58 @ SV167 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[995]) ).

thf(1050,plain,
    ! [SV58: $i,SV167: $i,SV196: $i] :
      ( ( ( ~ ( ~ ~ ( ~ ( in @ ( sK17_SY205 @ SV196 @ SV167 @ SV58 ) @ SV58 )
                    | ~ ( in @ ( sK18_SY207 @ SV196 @ SV167 @ SV58 ) @ SV167 ) )
              | ( ( sK16_D @ SV196 @ SV167 @ SV58 )
               != ( ordered_pair @ ( sK17_SY205 @ SV196 @ SV167 @ SV58 ) @ ( sK18_SY207 @ SV196 @ SV167 @ SV58 ) ) ) )
          | ( in @ ( sK16_D @ SV196 @ SV167 @ SV58 ) @ SV196 ) )
        = $true )
      | ( ( SV196
          = ( cartesian_product2 @ SV58 @ SV167 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[996]) ).

thf(1051,plain,
    ! [SV197: $i,SV168: $i,SV58: $i] :
      ( ( ( ~ ! [SY430: $i] :
                ( ! [SY403: $i,SY404: $i] :
                    ( ~ ( in @ SY403 @ SV58 )
                    | ~ ( in @ SY404 @ SV168 )
                    | ( SY430
                     != ( ordered_pair @ SY403 @ SY404 ) ) )
                | ( in @ SY430 @ SV197 ) ) )
        = $false )
      | ( ( SV197
          = ( cartesian_product2 @ SV58 @ SV168 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[997]) ).

thf(1052,plain,
    ! [SV58: $i,SV168: $i,SV197: $i] :
      ( ( ( ~ ! [SY433: $i] :
                ( ~ ( in @ SY433 @ SV197 )
                | ~ ( ~ ~ ( ~ ( in @ ( sK14_E @ SY433 @ SV197 @ SV168 @ SV58 ) @ SV58 )
                          | ~ ( in @ ( sK15_SY202 @ SY433 @ SV197 @ SV168 @ SV58 ) @ SV168 ) )
                    | ( SY433
                     != ( ordered_pair @ ( sK14_E @ SY433 @ SV197 @ SV168 @ SV58 ) @ ( sK15_SY202 @ SY433 @ SV197 @ SV168 @ SV58 ) ) ) ) ) )
        = $false )
      | ( ( SV197
          = ( cartesian_product2 @ SV58 @ SV168 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[997]) ).

thf(1053,plain,
    ! [SV205: $i,SV100: $i,SV198: $i,SV59: $i] :
      ( ( ( in @ SV59 @ SV198 )
        = $false )
      | ( ( ~ ( in @ SV100 @ SV205 ) )
        = $true )
      | ( ( in @ ( ordered_pair @ SV59 @ SV100 ) @ ( cartesian_product2 @ SV198 @ SV205 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[998]) ).

thf(1054,plain,
    ! [SV228: $i,SV100: $i,SV59: $i] :
      ( ( ( ! [SY450: $i] :
              ~ ( in @ ( ordered_pair @ SV59 @ SV100 ) @ ( cartesian_product2 @ SV228 @ SY450 ) ) )
        = $true )
      | ( ( in @ SV59 @ SV228 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[999]) ).

thf(1055,plain,
    ! [SV230: $i,SV229: $i,SV100: $i,SV59: $i] :
      ( ( ~ ( in @ ( ordered_pair @ SV59 @ SV100 ) @ ( cartesian_product2 @ SV229 @ SV230 ) )
        | ( in @ SV100 @ SV230 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1000]) ).

thf(1056,plain,
    ! [SV127: $i,SV169: $i] :
      ( ( ( ( ( sK23_C @ SV169 @ SV127 )
           != SV127 ) )
        = $true )
      | ( ( ~ ( in @ ( sK23_C @ SV169 @ SV127 ) @ SV169 ) )
        = $true )
      | ( ( SV169
          = ( singleton @ SV127 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1001]) ).

thf(1057,plain,
    ! [SV127: $i,SV169: $i] :
      ( ( ( ( sK23_C @ SV169 @ SV127 )
          = SV127 )
        = $true )
      | ( ( in @ ( sK23_C @ SV169 @ SV127 ) @ SV169 )
        = $true )
      | ( ( SV169
          = ( singleton @ SV127 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1002]) ).

thf(1058,plain,
    ! [SV170: $i,SV128: $i] :
      ( ( ( ! [SY406: $i] :
              ( ( SY406 != SV128 )
              | ( in @ SY406 @ SV170 ) ) )
        = $true )
      | ( ( SV170
          = ( singleton @ SV128 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1003]) ).

thf(1059,plain,
    ! [SV128: $i,SV170: $i] :
      ( ( ( ! [SY407: $i] :
              ( ~ ( in @ SY407 @ SV170 )
              | ( SY407 = SV128 ) ) )
        = $true )
      | ( ( SV170
          = ( singleton @ SV128 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1004]) ).

thf(1060,plain,
    ! [SV129: $i,SV171: $i] :
      ( ( ( in @ ( sK13_C @ SV171 @ SV129 ) @ SV171 )
        = $false )
      | ( ( subset @ SV129 @ SV171 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1006]) ).

thf(1061,plain,
    ! [SV172: $i,SV130: $i,SV218: $i] :
      ( ( ( in @ SV218 @ SV130 )
        = $false )
      | ( ( in @ SV218 @ SV172 )
        = $true )
      | ( ( subset @ SV130 @ SV172 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1007]) ).

thf(1062,plain,
    ! [SV132: $i,SV174: $i,SV206: $i] :
      ( ( ( in @ SV206 @ SV174 )
        = $false )
      | ( ( in @ SV206 @ SV132 )
        = $false )
      | ( ( ~ ( disjoint @ SV132 @ SV174 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1010]) ).

thf(1063,plain,
    ! [SV60: $i,SV175: $i,SV199: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ ( sK20_D @ SV199 @ SV175 @ SV60 ) @ SV199 )
                  | ( ( sK20_D @ SV199 @ SV175 @ SV60 )
                   != SV60 ) )
              | ~ ( ~ ( in @ ( sK20_D @ SV199 @ SV175 @ SV60 ) @ SV199 )
                  | ( ( sK20_D @ SV199 @ SV175 @ SV60 )
                   != SV175 ) ) ) )
        = $true )
      | ( ( SV199
          = ( unordered_pair @ SV60 @ SV175 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1011]) ).

thf(1064,plain,
    ! [SV60: $i,SV175: $i,SV199: $i] :
      ( ( ( ( in @ ( sK20_D @ SV199 @ SV175 @ SV60 ) @ SV199 )
          | ( ( sK20_D @ SV199 @ SV175 @ SV60 )
            = SV60 )
          | ( ( sK20_D @ SV199 @ SV175 @ SV60 )
            = SV175 ) )
        = $true )
      | ( ( SV199
          = ( unordered_pair @ SV60 @ SV175 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1012]) ).

thf(1065,plain,
    ! [SV176: $i,SV60: $i,SV200: $i] :
      ( ( ( ~ ! [SY435: $i] :
                ( ~ ( in @ SY435 @ SV200 )
                | ( SY435 = SV60 )
                | ( SY435 = SV176 ) ) )
        = $false )
      | ( ( SV200
          = ( unordered_pair @ SV60 @ SV176 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1013]) ).

thf(1066,plain,
    ! [SV176: $i,SV200: $i,SV60: $i] :
      ( ( ( ~ ~ ( ~ ! [SY436: $i] :
                      ( ( SY436 != SV60 )
                      | ( in @ SY436 @ SV200 ) )
                | ~ ! [SY437: $i] :
                      ( ( SY437 != SV176 )
                      | ( in @ SY437 @ SV200 ) ) ) )
        = $false )
      | ( ( SV200
          = ( unordered_pair @ SV60 @ SV176 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1013]) ).

thf(1067,plain,
    ! [SV231: $i,SV207: $i] :
      ( ( ( subset @ SV207 @ ( singleton @ SV231 ) )
        = $true )
      | ( ( SV207 = empty_set )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1014]) ).

thf(1068,plain,
    ! [SV219: $i,SV208: $i] :
      ( ( ( SV208
          = ( singleton @ SV219 ) )
        = $false )
      | ( ( subset @ SV208 @ ( singleton @ SV219 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1015]) ).

thf(1069,plain,
    ! [SV232: $i,SV209: $i] :
      ( ( ( subset @ SV209 @ ( singleton @ SV232 ) )
        = $true )
      | ( ( SV209 = empty_set )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1016]) ).

thf(1070,plain,
    ! [SV220: $i,SV210: $i] :
      ( ( ( SV210
          = ( singleton @ SV220 ) )
        = $false )
      | ( ( subset @ SV210 @ ( singleton @ SV220 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1017]) ).

thf(1071,plain,
    ! [SV222: $i,SV212: $i] :
      ( ( ( SV212 = SV222 )
        = $false )
      | ( ( subset @ SV212 @ SV222 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1021]) ).

thf(1072,plain,
    ! [SV223: $i,SV213: $i] :
      ( ( ( SV213 = SV223 )
        = $false )
      | ( ( subset @ SV223 @ SV213 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1022]) ).

thf(1073,plain,
    ! [SV224: $i,SV214: $i] :
      ( ( ( proper_subset @ SV214 @ SV224 )
        = $false )
      | ( ( ( SV214 != SV224 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1023]) ).

thf(1074,plain,
    ! [SV225: $i,SV215: $i] :
      ( ( ( proper_subset @ SV215 @ SV225 )
        = $false )
      | ( ( subset @ SV215 @ SV225 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1024]) ).

thf(1075,plain,
    ! [SV141: $i,SV185: $i] :
      ( ( ( ! [SY415: $i] :
              ( ~ ( in @ ( sK10_C @ SV185 @ SV141 ) @ SY415 )
              | ~ ( in @ SY415 @ SV141 ) ) )
        = $true )
      | ( ( ~ ( in @ ( sK10_C @ SV185 @ SV141 ) @ SV185 ) )
        = $true )
      | ( ( SV185
          = ( union @ SV141 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1025]) ).

thf(1076,plain,
    ! [SV141: $i,SV185: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK10_C @ SV185 @ SV141 ) @ ( sK11_SY201 @ SV185 @ SV141 ) )
              | ~ ( in @ ( sK11_SY201 @ SV185 @ SV141 ) @ SV141 ) ) )
        = $true )
      | ( ( in @ ( sK10_C @ SV185 @ SV141 ) @ SV185 )
        = $true )
      | ( ( SV185
          = ( union @ SV141 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1026]) ).

thf(1077,plain,
    ! [SV186: $i,SV142: $i] :
      ( ( ( ! [SY416: $i] :
              ( ! [SY375: $i] :
                  ( ~ ( in @ SY416 @ SY375 )
                  | ~ ( in @ SY375 @ SV142 ) )
              | ( in @ SY416 @ SV186 ) ) )
        = $true )
      | ( ( SV186
          = ( union @ SV142 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1027]) ).

thf(1078,plain,
    ! [SV142: $i,SV186: $i] :
      ( ( ( ! [SY418: $i] :
              ( ~ ( in @ SY418 @ SV186 )
              | ~ ( ~ ( in @ SY418 @ ( sK9_D @ SY418 @ SV186 @ SV142 ) )
                  | ~ ( in @ ( sK9_D @ SY418 @ SV186 @ SV142 ) @ SV142 ) ) ) )
        = $true )
      | ( ( SV186
          = ( union @ SV142 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1028]) ).

thf(1079,plain,
    ! [SV226: $i,SV216: $i,SV54: $i] :
      ( ( ( subset @ ( unordered_pair @ SV54 @ SV216 ) @ SV226 )
        = $false )
      | ( ( in @ SV54 @ SV226 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1031]) ).

thf(1080,plain,
    ! [SV227: $i,SV217: $i,SV54: $i] :
      ( ( ( subset @ ( unordered_pair @ SV54 @ SV217 ) @ SV227 )
        = $false )
      | ( ( in @ SV217 @ SV227 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1032]) ).

thf(1081,plain,
    ! [SV55: $i,SV149: $i,SV190: $i] :
      ( ( ( ~ ( in @ ( sK8_D @ SV190 @ SV149 @ SV55 ) @ SV55 )
          | ( in @ ( sK8_D @ SV190 @ SV149 @ SV55 ) @ SV149 ) )
        = $true )
      | ( ( ~ ( in @ ( sK8_D @ SV190 @ SV149 @ SV55 ) @ SV190 ) )
        = $true )
      | ( ( SV190
          = ( set_difference @ SV55 @ SV149 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1033]) ).

thf(1082,plain,
    ! [SV55: $i,SV149: $i,SV190: $i] :
      ( ( ( ~ ( ( in @ ( sK8_D @ SV190 @ SV149 @ SV55 ) @ SV55 )
              | ( in @ ( sK8_D @ SV190 @ SV149 @ SV55 ) @ SV190 ) )
          | ~ ( ~ ( in @ ( sK8_D @ SV190 @ SV149 @ SV55 ) @ SV149 )
              | ( in @ ( sK8_D @ SV190 @ SV149 @ SV55 ) @ SV190 ) ) )
        = $false )
      | ( ( SV190
          = ( set_difference @ SV55 @ SV149 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1034]) ).

thf(1083,plain,
    ! [SV191: $i,SV150: $i,SV55: $i] :
      ( ( ( ! [SY419: $i] :
              ( ~ ( in @ SY419 @ SV55 )
              | ( in @ SY419 @ SV150 )
              | ( in @ SY419 @ SV191 ) ) )
        = $true )
      | ( ( SV191
          = ( set_difference @ SV55 @ SV150 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1035]) ).

thf(1084,plain,
    ! [SV150: $i,SV55: $i,SV191: $i] :
      ( ( ( ~ ( ~ ! [SY420: $i] :
                    ( ~ ( in @ SY420 @ SV191 )
                    | ( in @ SY420 @ SV55 ) )
              | ~ ! [SY421: $i] :
                    ( ~ ( in @ SY421 @ SV191 )
                    | ~ ( in @ SY421 @ SV150 ) ) ) )
        = $true )
      | ( ( SV191
          = ( set_difference @ SV55 @ SV150 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1036]) ).

thf(1085,plain,
    ! [SV56: $i,SV151: $i,SV192: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK19_D @ SV192 @ SV151 @ SV56 ) @ SV192 )
              | ~ ( in @ ( sK19_D @ SV192 @ SV151 @ SV56 ) @ SV56 ) )
          | ~ ( ~ ( in @ ( sK19_D @ SV192 @ SV151 @ SV56 ) @ SV192 )
              | ~ ( in @ ( sK19_D @ SV192 @ SV151 @ SV56 ) @ SV151 ) ) )
        = $false )
      | ( ( SV192
          = ( set_union2 @ SV56 @ SV151 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1037]) ).

thf(1086,plain,
    ! [SV56: $i,SV151: $i,SV192: $i] :
      ( ( ( in @ ( sK19_D @ SV192 @ SV151 @ SV56 ) @ SV192 )
        = $true )
      | ( ( ( in @ ( sK19_D @ SV192 @ SV151 @ SV56 ) @ SV56 )
          | ( in @ ( sK19_D @ SV192 @ SV151 @ SV56 ) @ SV151 ) )
        = $true )
      | ( ( SV192
          = ( set_union2 @ SV56 @ SV151 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1038]) ).

thf(1087,plain,
    ! [SV152: $i,SV56: $i,SV193: $i] :
      ( ( ( ! [SY422: $i] :
              ( ~ ( in @ SY422 @ SV193 )
              | ( in @ SY422 @ SV56 )
              | ( in @ SY422 @ SV152 ) ) )
        = $true )
      | ( ( SV193
          = ( set_union2 @ SV56 @ SV152 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1039]) ).

thf(1088,plain,
    ! [SV152: $i,SV193: $i,SV56: $i] :
      ( ( ( ~ ( ~ ! [SY423: $i] :
                    ( ~ ( in @ SY423 @ SV56 )
                    | ( in @ SY423 @ SV193 ) )
              | ~ ! [SY424: $i] :
                    ( ~ ( in @ SY424 @ SV152 )
                    | ( in @ SY424 @ SV193 ) ) ) )
        = $true )
      | ( ( SV193
          = ( set_union2 @ SV56 @ SV152 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1040]) ).

thf(1089,plain,
    ! [SV57: $i,SV159: $i,SV194: $i] :
      ( ( ( ~ ( in @ ( sK12_D @ SV194 @ SV159 @ SV57 ) @ SV57 )
          | ~ ( in @ ( sK12_D @ SV194 @ SV159 @ SV57 ) @ SV159 ) )
        = $true )
      | ( ( ~ ( in @ ( sK12_D @ SV194 @ SV159 @ SV57 ) @ SV194 ) )
        = $true )
      | ( ( SV194
          = ( set_intersection2 @ SV57 @ SV159 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1041]) ).

thf(1090,plain,
    ! [SV57: $i,SV159: $i,SV194: $i] :
      ( ( ( ~ ( ( in @ ( sK12_D @ SV194 @ SV159 @ SV57 ) @ SV57 )
              | ( in @ ( sK12_D @ SV194 @ SV159 @ SV57 ) @ SV194 ) )
          | ~ ( ( in @ ( sK12_D @ SV194 @ SV159 @ SV57 ) @ SV159 )
              | ( in @ ( sK12_D @ SV194 @ SV159 @ SV57 ) @ SV194 ) ) )
        = $false )
      | ( ( SV194
          = ( set_intersection2 @ SV57 @ SV159 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1042]) ).

thf(1091,plain,
    ! [SV195: $i,SV160: $i,SV57: $i] :
      ( ( ( ! [SY425: $i] :
              ( ~ ( in @ SY425 @ SV57 )
              | ~ ( in @ SY425 @ SV160 )
              | ( in @ SY425 @ SV195 ) ) )
        = $true )
      | ( ( SV195
          = ( set_intersection2 @ SV57 @ SV160 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1043]) ).

thf(1092,plain,
    ! [SV160: $i,SV57: $i,SV195: $i] :
      ( ( ( ~ ( ~ ! [SY426: $i] :
                    ( ~ ( in @ SY426 @ SV195 )
                    | ( in @ SY426 @ SV57 ) )
              | ~ ! [SY427: $i] :
                    ( ~ ( in @ SY427 @ SV195 )
                    | ( in @ SY427 @ SV160 ) ) ) )
        = $true )
      | ( ( SV195
          = ( set_intersection2 @ SV57 @ SV160 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1044]) ).

thf(1093,plain,
    ! [SV121: $i,SV161: $i] :
      ( ( ( in @ ( sK21_C @ SV161 @ SV121 ) @ SV161 )
        = $false )
      | ( ( ~ ( subset @ ( sK21_C @ SV161 @ SV121 ) @ SV121 ) )
        = $true )
      | ( ( SV161
          = ( powerset @ SV121 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1045]) ).

thf(1094,plain,
    ! [SV122: $i,SV162: $i,SV233: $i] :
      ( ( ( ~ ( in @ SV233 @ SV162 )
          | ( subset @ SV233 @ SV122 ) )
        = $true )
      | ( ( SV162
          = ( powerset @ SV122 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1047]) ).

thf(1095,plain,
    ! [SV162: $i,SV122: $i,SV234: $i] :
      ( ( ( ~ ( subset @ SV234 @ SV122 )
          | ( in @ SV234 @ SV162 ) )
        = $true )
      | ( ( SV162
          = ( powerset @ SV122 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1048]) ).

thf(1096,plain,
    ! [SV196: $i,SV167: $i,SV58: $i] :
      ( ( ( ! [SY428: $i,SY429: $i] :
              ( ~ ( in @ SY428 @ SV58 )
              | ~ ( in @ SY429 @ SV167 )
              | ( ( sK16_D @ SV196 @ SV167 @ SV58 )
               != ( ordered_pair @ SY428 @ SY429 ) ) ) )
        = $true )
      | ( ( ~ ( in @ ( sK16_D @ SV196 @ SV167 @ SV58 ) @ SV196 ) )
        = $true )
      | ( ( SV196
          = ( cartesian_product2 @ SV58 @ SV167 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1049]) ).

thf(1097,plain,
    ! [SV58: $i,SV167: $i,SV196: $i] :
      ( ( ( ~ ( ~ ~ ( ~ ( in @ ( sK17_SY205 @ SV196 @ SV167 @ SV58 ) @ SV58 )
                    | ~ ( in @ ( sK18_SY207 @ SV196 @ SV167 @ SV58 ) @ SV167 ) )
              | ( ( sK16_D @ SV196 @ SV167 @ SV58 )
               != ( ordered_pair @ ( sK17_SY205 @ SV196 @ SV167 @ SV58 ) @ ( sK18_SY207 @ SV196 @ SV167 @ SV58 ) ) ) ) )
        = $true )
      | ( ( in @ ( sK16_D @ SV196 @ SV167 @ SV58 ) @ SV196 )
        = $true )
      | ( ( SV196
          = ( cartesian_product2 @ SV58 @ SV167 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1050]) ).

thf(1098,plain,
    ! [SV197: $i,SV168: $i,SV58: $i] :
      ( ( ( ! [SY430: $i] :
              ( ! [SY403: $i,SY404: $i] :
                  ( ~ ( in @ SY403 @ SV58 )
                  | ~ ( in @ SY404 @ SV168 )
                  | ( SY430
                   != ( ordered_pair @ SY403 @ SY404 ) ) )
              | ( in @ SY430 @ SV197 ) ) )
        = $true )
      | ( ( SV197
          = ( cartesian_product2 @ SV58 @ SV168 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1051]) ).

thf(1099,plain,
    ! [SV58: $i,SV168: $i,SV197: $i] :
      ( ( ( ! [SY433: $i] :
              ( ~ ( in @ SY433 @ SV197 )
              | ~ ( ~ ~ ( ~ ( in @ ( sK14_E @ SY433 @ SV197 @ SV168 @ SV58 ) @ SV58 )
                        | ~ ( in @ ( sK15_SY202 @ SY433 @ SV197 @ SV168 @ SV58 ) @ SV168 ) )
                  | ( SY433
                   != ( ordered_pair @ ( sK14_E @ SY433 @ SV197 @ SV168 @ SV58 ) @ ( sK15_SY202 @ SY433 @ SV197 @ SV168 @ SV58 ) ) ) ) ) )
        = $true )
      | ( ( SV197
          = ( cartesian_product2 @ SV58 @ SV168 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1052]) ).

thf(1100,plain,
    ! [SV198: $i,SV59: $i,SV205: $i,SV100: $i] :
      ( ( ( in @ SV100 @ SV205 )
        = $false )
      | ( ( in @ SV59 @ SV198 )
        = $false )
      | ( ( in @ ( ordered_pair @ SV59 @ SV100 ) @ ( cartesian_product2 @ SV198 @ SV205 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1053]) ).

thf(1101,plain,
    ! [SV235: $i,SV228: $i,SV100: $i,SV59: $i] :
      ( ( ( ~ ( in @ ( ordered_pair @ SV59 @ SV100 ) @ ( cartesian_product2 @ SV228 @ SV235 ) ) )
        = $true )
      | ( ( in @ SV59 @ SV228 )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[1054]) ).

thf(1102,plain,
    ! [SV230: $i,SV229: $i,SV100: $i,SV59: $i] :
      ( ( ( ~ ( in @ ( ordered_pair @ SV59 @ SV100 ) @ ( cartesian_product2 @ SV229 @ SV230 ) ) )
        = $true )
      | ( ( in @ SV100 @ SV230 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1055]) ).

thf(1103,plain,
    ! [SV127: $i,SV169: $i] :
      ( ( ( ( sK23_C @ SV169 @ SV127 )
          = SV127 )
        = $false )
      | ( ( ~ ( in @ ( sK23_C @ SV169 @ SV127 ) @ SV169 ) )
        = $true )
      | ( ( SV169
          = ( singleton @ SV127 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1056]) ).

thf(1104,plain,
    ! [SV170: $i,SV128: $i,SV236: $i] :
      ( ( ( ( SV236 != SV128 )
          | ( in @ SV236 @ SV170 ) )
        = $true )
      | ( ( SV170
          = ( singleton @ SV128 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1058]) ).

thf(1105,plain,
    ! [SV128: $i,SV170: $i,SV237: $i] :
      ( ( ( ~ ( in @ SV237 @ SV170 )
          | ( SV237 = SV128 ) )
        = $true )
      | ( ( SV170
          = ( singleton @ SV128 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1059]) ).

thf(1106,plain,
    ! [SV206: $i,SV174: $i,SV132: $i] :
      ( ( ( disjoint @ SV132 @ SV174 )
        = $false )
      | ( ( in @ SV206 @ SV132 )
        = $false )
      | ( ( in @ SV206 @ SV174 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1062]) ).

thf(1107,plain,
    ! [SV60: $i,SV175: $i,SV199: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK20_D @ SV199 @ SV175 @ SV60 ) @ SV199 )
              | ( ( sK20_D @ SV199 @ SV175 @ SV60 )
               != SV60 ) )
          | ~ ( ~ ( in @ ( sK20_D @ SV199 @ SV175 @ SV60 ) @ SV199 )
              | ( ( sK20_D @ SV199 @ SV175 @ SV60 )
               != SV175 ) ) )
        = $false )
      | ( ( SV199
          = ( unordered_pair @ SV60 @ SV175 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1063]) ).

thf(1108,plain,
    ! [SV60: $i,SV175: $i,SV199: $i] :
      ( ( ( in @ ( sK20_D @ SV199 @ SV175 @ SV60 ) @ SV199 )
        = $true )
      | ( ( ( ( sK20_D @ SV199 @ SV175 @ SV60 )
            = SV60 )
          | ( ( sK20_D @ SV199 @ SV175 @ SV60 )
            = SV175 ) )
        = $true )
      | ( ( SV199
          = ( unordered_pair @ SV60 @ SV175 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1064]) ).

thf(1109,plain,
    ! [SV176: $i,SV60: $i,SV200: $i] :
      ( ( ( ! [SY435: $i] :
              ( ~ ( in @ SY435 @ SV200 )
              | ( SY435 = SV60 )
              | ( SY435 = SV176 ) ) )
        = $true )
      | ( ( SV200
          = ( unordered_pair @ SV60 @ SV176 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1065]) ).

thf(1110,plain,
    ! [SV176: $i,SV200: $i,SV60: $i] :
      ( ( ( ~ ( ~ ! [SY436: $i] :
                    ( ( SY436 != SV60 )
                    | ( in @ SY436 @ SV200 ) )
              | ~ ! [SY437: $i] :
                    ( ( SY437 != SV176 )
                    | ( in @ SY437 @ SV200 ) ) ) )
        = $true )
      | ( ( SV200
          = ( unordered_pair @ SV60 @ SV176 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1066]) ).

thf(1111,plain,
    ! [SV224: $i,SV214: $i] :
      ( ( ( SV214 = SV224 )
        = $false )
      | ( ( proper_subset @ SV214 @ SV224 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1073]) ).

thf(1112,plain,
    ! [SV238: $i,SV141: $i,SV185: $i] :
      ( ( ( ~ ( in @ ( sK10_C @ SV185 @ SV141 ) @ SV238 )
          | ~ ( in @ SV238 @ SV141 ) )
        = $true )
      | ( ( ~ ( in @ ( sK10_C @ SV185 @ SV141 ) @ SV185 ) )
        = $true )
      | ( ( SV185
          = ( union @ SV141 ) )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[1075]) ).

thf(1113,plain,
    ! [SV141: $i,SV185: $i] :
      ( ( ( ~ ( in @ ( sK10_C @ SV185 @ SV141 ) @ ( sK11_SY201 @ SV185 @ SV141 ) )
          | ~ ( in @ ( sK11_SY201 @ SV185 @ SV141 ) @ SV141 ) )
        = $false )
      | ( ( in @ ( sK10_C @ SV185 @ SV141 ) @ SV185 )
        = $true )
      | ( ( SV185
          = ( union @ SV141 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1076]) ).

thf(1114,plain,
    ! [SV186: $i,SV142: $i,SV239: $i] :
      ( ( ( ! [SY452: $i] :
              ( ~ ( in @ SV239 @ SY452 )
              | ~ ( in @ SY452 @ SV142 ) )
          | ( in @ SV239 @ SV186 ) )
        = $true )
      | ( ( SV186
          = ( union @ SV142 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1077]) ).

thf(1115,plain,
    ! [SV142: $i,SV186: $i,SV240: $i] :
      ( ( ( ~ ( in @ SV240 @ SV186 )
          | ~ ( ~ ( in @ SV240 @ ( sK9_D @ SV240 @ SV186 @ SV142 ) )
              | ~ ( in @ ( sK9_D @ SV240 @ SV186 @ SV142 ) @ SV142 ) ) )
        = $true )
      | ( ( SV186
          = ( union @ SV142 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1078]) ).

thf(1116,plain,
    ! [SV55: $i,SV149: $i,SV190: $i] :
      ( ( ( ~ ( in @ ( sK8_D @ SV190 @ SV149 @ SV55 ) @ SV55 ) )
        = $true )
      | ( ( in @ ( sK8_D @ SV190 @ SV149 @ SV55 ) @ SV149 )
        = $true )
      | ( ( ~ ( in @ ( sK8_D @ SV190 @ SV149 @ SV55 ) @ SV190 ) )
        = $true )
      | ( ( SV190
          = ( set_difference @ SV55 @ SV149 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1081]) ).

thf(1117,plain,
    ! [SV55: $i,SV149: $i,SV190: $i] :
      ( ( ( ~ ( ( in @ ( sK8_D @ SV190 @ SV149 @ SV55 ) @ SV55 )
              | ( in @ ( sK8_D @ SV190 @ SV149 @ SV55 ) @ SV190 ) ) )
        = $false )
      | ( ( SV190
          = ( set_difference @ SV55 @ SV149 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1082]) ).

thf(1118,plain,
    ! [SV55: $i,SV149: $i,SV190: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK8_D @ SV190 @ SV149 @ SV55 ) @ SV149 )
              | ( in @ ( sK8_D @ SV190 @ SV149 @ SV55 ) @ SV190 ) ) )
        = $false )
      | ( ( SV190
          = ( set_difference @ SV55 @ SV149 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1082]) ).

thf(1119,plain,
    ! [SV191: $i,SV150: $i,SV55: $i,SV241: $i] :
      ( ( ( ~ ( in @ SV241 @ SV55 )
          | ( in @ SV241 @ SV150 )
          | ( in @ SV241 @ SV191 ) )
        = $true )
      | ( ( SV191
          = ( set_difference @ SV55 @ SV150 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1083]) ).

thf(1120,plain,
    ! [SV150: $i,SV55: $i,SV191: $i] :
      ( ( ( ~ ! [SY420: $i] :
                ( ~ ( in @ SY420 @ SV191 )
                | ( in @ SY420 @ SV55 ) )
          | ~ ! [SY421: $i] :
                ( ~ ( in @ SY421 @ SV191 )
                | ~ ( in @ SY421 @ SV150 ) ) )
        = $false )
      | ( ( SV191
          = ( set_difference @ SV55 @ SV150 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1084]) ).

thf(1121,plain,
    ! [SV56: $i,SV151: $i,SV192: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK19_D @ SV192 @ SV151 @ SV56 ) @ SV192 )
              | ~ ( in @ ( sK19_D @ SV192 @ SV151 @ SV56 ) @ SV56 ) ) )
        = $false )
      | ( ( SV192
          = ( set_union2 @ SV56 @ SV151 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1085]) ).

thf(1122,plain,
    ! [SV56: $i,SV151: $i,SV192: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK19_D @ SV192 @ SV151 @ SV56 ) @ SV192 )
              | ~ ( in @ ( sK19_D @ SV192 @ SV151 @ SV56 ) @ SV151 ) ) )
        = $false )
      | ( ( SV192
          = ( set_union2 @ SV56 @ SV151 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1085]) ).

thf(1123,plain,
    ! [SV56: $i,SV151: $i,SV192: $i] :
      ( ( ( in @ ( sK19_D @ SV192 @ SV151 @ SV56 ) @ SV56 )
        = $true )
      | ( ( in @ ( sK19_D @ SV192 @ SV151 @ SV56 ) @ SV151 )
        = $true )
      | ( ( in @ ( sK19_D @ SV192 @ SV151 @ SV56 ) @ SV192 )
        = $true )
      | ( ( SV192
          = ( set_union2 @ SV56 @ SV151 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1086]) ).

thf(1124,plain,
    ! [SV152: $i,SV56: $i,SV193: $i,SV242: $i] :
      ( ( ( ~ ( in @ SV242 @ SV193 )
          | ( in @ SV242 @ SV56 )
          | ( in @ SV242 @ SV152 ) )
        = $true )
      | ( ( SV193
          = ( set_union2 @ SV56 @ SV152 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1087]) ).

thf(1125,plain,
    ! [SV152: $i,SV193: $i,SV56: $i] :
      ( ( ( ~ ! [SY423: $i] :
                ( ~ ( in @ SY423 @ SV56 )
                | ( in @ SY423 @ SV193 ) )
          | ~ ! [SY424: $i] :
                ( ~ ( in @ SY424 @ SV152 )
                | ( in @ SY424 @ SV193 ) ) )
        = $false )
      | ( ( SV193
          = ( set_union2 @ SV56 @ SV152 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1088]) ).

thf(1126,plain,
    ! [SV57: $i,SV159: $i,SV194: $i] :
      ( ( ( ~ ( in @ ( sK12_D @ SV194 @ SV159 @ SV57 ) @ SV57 ) )
        = $true )
      | ( ( ~ ( in @ ( sK12_D @ SV194 @ SV159 @ SV57 ) @ SV159 ) )
        = $true )
      | ( ( ~ ( in @ ( sK12_D @ SV194 @ SV159 @ SV57 ) @ SV194 ) )
        = $true )
      | ( ( SV194
          = ( set_intersection2 @ SV57 @ SV159 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1089]) ).

thf(1127,plain,
    ! [SV57: $i,SV159: $i,SV194: $i] :
      ( ( ( ~ ( ( in @ ( sK12_D @ SV194 @ SV159 @ SV57 ) @ SV57 )
              | ( in @ ( sK12_D @ SV194 @ SV159 @ SV57 ) @ SV194 ) ) )
        = $false )
      | ( ( SV194
          = ( set_intersection2 @ SV57 @ SV159 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1090]) ).

thf(1128,plain,
    ! [SV57: $i,SV159: $i,SV194: $i] :
      ( ( ( ~ ( ( in @ ( sK12_D @ SV194 @ SV159 @ SV57 ) @ SV159 )
              | ( in @ ( sK12_D @ SV194 @ SV159 @ SV57 ) @ SV194 ) ) )
        = $false )
      | ( ( SV194
          = ( set_intersection2 @ SV57 @ SV159 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1090]) ).

thf(1129,plain,
    ! [SV195: $i,SV160: $i,SV57: $i,SV243: $i] :
      ( ( ( ~ ( in @ SV243 @ SV57 )
          | ~ ( in @ SV243 @ SV160 )
          | ( in @ SV243 @ SV195 ) )
        = $true )
      | ( ( SV195
          = ( set_intersection2 @ SV57 @ SV160 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1091]) ).

thf(1130,plain,
    ! [SV160: $i,SV57: $i,SV195: $i] :
      ( ( ( ~ ! [SY426: $i] :
                ( ~ ( in @ SY426 @ SV195 )
                | ( in @ SY426 @ SV57 ) )
          | ~ ! [SY427: $i] :
                ( ~ ( in @ SY427 @ SV195 )
                | ( in @ SY427 @ SV160 ) ) )
        = $false )
      | ( ( SV195
          = ( set_intersection2 @ SV57 @ SV160 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1092]) ).

thf(1131,plain,
    ! [SV121: $i,SV161: $i] :
      ( ( ( subset @ ( sK21_C @ SV161 @ SV121 ) @ SV121 )
        = $false )
      | ( ( in @ ( sK21_C @ SV161 @ SV121 ) @ SV161 )
        = $false )
      | ( ( SV161
          = ( powerset @ SV121 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1093]) ).

thf(1132,plain,
    ! [SV122: $i,SV162: $i,SV233: $i] :
      ( ( ( ~ ( in @ SV233 @ SV162 ) )
        = $true )
      | ( ( subset @ SV233 @ SV122 )
        = $true )
      | ( ( SV162
          = ( powerset @ SV122 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1094]) ).

thf(1133,plain,
    ! [SV162: $i,SV122: $i,SV234: $i] :
      ( ( ( ~ ( subset @ SV234 @ SV122 ) )
        = $true )
      | ( ( in @ SV234 @ SV162 )
        = $true )
      | ( ( SV162
          = ( powerset @ SV122 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1095]) ).

thf(1134,plain,
    ! [SV196: $i,SV167: $i,SV58: $i,SV244: $i] :
      ( ( ( ! [SY453: $i] :
              ( ~ ( in @ SV244 @ SV58 )
              | ~ ( in @ SY453 @ SV167 )
              | ( ( sK16_D @ SV196 @ SV167 @ SV58 )
               != ( ordered_pair @ SV244 @ SY453 ) ) ) )
        = $true )
      | ( ( ~ ( in @ ( sK16_D @ SV196 @ SV167 @ SV58 ) @ SV196 ) )
        = $true )
      | ( ( SV196
          = ( cartesian_product2 @ SV58 @ SV167 ) )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[1096]) ).

thf(1135,plain,
    ! [SV58: $i,SV167: $i,SV196: $i] :
      ( ( ( ~ ~ ( ~ ( in @ ( sK17_SY205 @ SV196 @ SV167 @ SV58 ) @ SV58 )
                | ~ ( in @ ( sK18_SY207 @ SV196 @ SV167 @ SV58 ) @ SV167 ) )
          | ( ( sK16_D @ SV196 @ SV167 @ SV58 )
           != ( ordered_pair @ ( sK17_SY205 @ SV196 @ SV167 @ SV58 ) @ ( sK18_SY207 @ SV196 @ SV167 @ SV58 ) ) ) )
        = $false )
      | ( ( in @ ( sK16_D @ SV196 @ SV167 @ SV58 ) @ SV196 )
        = $true )
      | ( ( SV196
          = ( cartesian_product2 @ SV58 @ SV167 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1097]) ).

thf(1136,plain,
    ! [SV197: $i,SV245: $i,SV168: $i,SV58: $i] :
      ( ( ( ! [SY454: $i,SY455: $i] :
              ( ~ ( in @ SY454 @ SV58 )
              | ~ ( in @ SY455 @ SV168 )
              | ( SV245
               != ( ordered_pair @ SY454 @ SY455 ) ) )
          | ( in @ SV245 @ SV197 ) )
        = $true )
      | ( ( SV197
          = ( cartesian_product2 @ SV58 @ SV168 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1098]) ).

thf(1137,plain,
    ! [SV58: $i,SV168: $i,SV197: $i,SV246: $i] :
      ( ( ( ~ ( in @ SV246 @ SV197 )
          | ~ ( ~ ~ ( ~ ( in @ ( sK14_E @ SV246 @ SV197 @ SV168 @ SV58 ) @ SV58 )
                    | ~ ( in @ ( sK15_SY202 @ SV246 @ SV197 @ SV168 @ SV58 ) @ SV168 ) )
              | ( SV246
               != ( ordered_pair @ ( sK14_E @ SV246 @ SV197 @ SV168 @ SV58 ) @ ( sK15_SY202 @ SV246 @ SV197 @ SV168 @ SV58 ) ) ) ) )
        = $true )
      | ( ( SV197
          = ( cartesian_product2 @ SV58 @ SV168 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1099]) ).

thf(1138,plain,
    ! [SV235: $i,SV228: $i,SV100: $i,SV59: $i] :
      ( ( ( in @ ( ordered_pair @ SV59 @ SV100 ) @ ( cartesian_product2 @ SV228 @ SV235 ) )
        = $false )
      | ( ( in @ SV59 @ SV228 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1101]) ).

thf(1139,plain,
    ! [SV230: $i,SV229: $i,SV100: $i,SV59: $i] :
      ( ( ( in @ ( ordered_pair @ SV59 @ SV100 ) @ ( cartesian_product2 @ SV229 @ SV230 ) )
        = $false )
      | ( ( in @ SV100 @ SV230 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1102]) ).

thf(1140,plain,
    ! [SV127: $i,SV169: $i] :
      ( ( ( in @ ( sK23_C @ SV169 @ SV127 ) @ SV169 )
        = $false )
      | ( ( ( sK23_C @ SV169 @ SV127 )
          = SV127 )
        = $false )
      | ( ( SV169
          = ( singleton @ SV127 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1103]) ).

thf(1141,plain,
    ! [SV170: $i,SV128: $i,SV236: $i] :
      ( ( ( ( SV236 != SV128 ) )
        = $true )
      | ( ( in @ SV236 @ SV170 )
        = $true )
      | ( ( SV170
          = ( singleton @ SV128 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1104]) ).

thf(1142,plain,
    ! [SV128: $i,SV170: $i,SV237: $i] :
      ( ( ( ~ ( in @ SV237 @ SV170 ) )
        = $true )
      | ( ( SV237 = SV128 )
        = $true )
      | ( ( SV170
          = ( singleton @ SV128 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1105]) ).

thf(1143,plain,
    ! [SV60: $i,SV175: $i,SV199: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK20_D @ SV199 @ SV175 @ SV60 ) @ SV199 )
              | ( ( sK20_D @ SV199 @ SV175 @ SV60 )
               != SV60 ) ) )
        = $false )
      | ( ( SV199
          = ( unordered_pair @ SV60 @ SV175 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1107]) ).

thf(1144,plain,
    ! [SV60: $i,SV175: $i,SV199: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK20_D @ SV199 @ SV175 @ SV60 ) @ SV199 )
              | ( ( sK20_D @ SV199 @ SV175 @ SV60 )
               != SV175 ) ) )
        = $false )
      | ( ( SV199
          = ( unordered_pair @ SV60 @ SV175 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1107]) ).

thf(1145,plain,
    ! [SV60: $i,SV175: $i,SV199: $i] :
      ( ( ( ( sK20_D @ SV199 @ SV175 @ SV60 )
          = SV60 )
        = $true )
      | ( ( ( sK20_D @ SV199 @ SV175 @ SV60 )
          = SV175 )
        = $true )
      | ( ( in @ ( sK20_D @ SV199 @ SV175 @ SV60 ) @ SV199 )
        = $true )
      | ( ( SV199
          = ( unordered_pair @ SV60 @ SV175 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1108]) ).

thf(1146,plain,
    ! [SV176: $i,SV60: $i,SV200: $i,SV247: $i] :
      ( ( ( ~ ( in @ SV247 @ SV200 )
          | ( SV247 = SV60 )
          | ( SV247 = SV176 ) )
        = $true )
      | ( ( SV200
          = ( unordered_pair @ SV60 @ SV176 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1109]) ).

thf(1147,plain,
    ! [SV176: $i,SV200: $i,SV60: $i] :
      ( ( ( ~ ! [SY436: $i] :
                ( ( SY436 != SV60 )
                | ( in @ SY436 @ SV200 ) )
          | ~ ! [SY437: $i] :
                ( ( SY437 != SV176 )
                | ( in @ SY437 @ SV200 ) ) )
        = $false )
      | ( ( SV200
          = ( unordered_pair @ SV60 @ SV176 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1110]) ).

thf(1148,plain,
    ! [SV238: $i,SV141: $i,SV185: $i] :
      ( ( ( ~ ( in @ ( sK10_C @ SV185 @ SV141 ) @ SV238 ) )
        = $true )
      | ( ( ~ ( in @ SV238 @ SV141 ) )
        = $true )
      | ( ( ~ ( in @ ( sK10_C @ SV185 @ SV141 ) @ SV185 ) )
        = $true )
      | ( ( SV185
          = ( union @ SV141 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1112]) ).

thf(1149,plain,
    ! [SV141: $i,SV185: $i] :
      ( ( ( ~ ( in @ ( sK10_C @ SV185 @ SV141 ) @ ( sK11_SY201 @ SV185 @ SV141 ) ) )
        = $false )
      | ( ( in @ ( sK10_C @ SV185 @ SV141 ) @ SV185 )
        = $true )
      | ( ( SV185
          = ( union @ SV141 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1113]) ).

thf(1150,plain,
    ! [SV141: $i,SV185: $i] :
      ( ( ( ~ ( in @ ( sK11_SY201 @ SV185 @ SV141 ) @ SV141 ) )
        = $false )
      | ( ( in @ ( sK10_C @ SV185 @ SV141 ) @ SV185 )
        = $true )
      | ( ( SV185
          = ( union @ SV141 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1113]) ).

thf(1151,plain,
    ! [SV186: $i,SV142: $i,SV239: $i] :
      ( ( ( ! [SY452: $i] :
              ( ~ ( in @ SV239 @ SY452 )
              | ~ ( in @ SY452 @ SV142 ) ) )
        = $true )
      | ( ( in @ SV239 @ SV186 )
        = $true )
      | ( ( SV186
          = ( union @ SV142 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1114]) ).

thf(1152,plain,
    ! [SV142: $i,SV186: $i,SV240: $i] :
      ( ( ( ~ ( in @ SV240 @ SV186 ) )
        = $true )
      | ( ( ~ ( ~ ( in @ SV240 @ ( sK9_D @ SV240 @ SV186 @ SV142 ) )
              | ~ ( in @ ( sK9_D @ SV240 @ SV186 @ SV142 ) @ SV142 ) ) )
        = $true )
      | ( ( SV186
          = ( union @ SV142 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1115]) ).

thf(1153,plain,
    ! [SV55: $i,SV149: $i,SV190: $i] :
      ( ( ( in @ ( sK8_D @ SV190 @ SV149 @ SV55 ) @ SV55 )
        = $false )
      | ( ( in @ ( sK8_D @ SV190 @ SV149 @ SV55 ) @ SV149 )
        = $true )
      | ( ( ~ ( in @ ( sK8_D @ SV190 @ SV149 @ SV55 ) @ SV190 ) )
        = $true )
      | ( ( SV190
          = ( set_difference @ SV55 @ SV149 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1116]) ).

thf(1154,plain,
    ! [SV55: $i,SV149: $i,SV190: $i] :
      ( ( ( ( in @ ( sK8_D @ SV190 @ SV149 @ SV55 ) @ SV55 )
          | ( in @ ( sK8_D @ SV190 @ SV149 @ SV55 ) @ SV190 ) )
        = $true )
      | ( ( SV190
          = ( set_difference @ SV55 @ SV149 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1117]) ).

thf(1155,plain,
    ! [SV55: $i,SV149: $i,SV190: $i] :
      ( ( ( ~ ( in @ ( sK8_D @ SV190 @ SV149 @ SV55 ) @ SV149 )
          | ( in @ ( sK8_D @ SV190 @ SV149 @ SV55 ) @ SV190 ) )
        = $true )
      | ( ( SV190
          = ( set_difference @ SV55 @ SV149 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1118]) ).

thf(1156,plain,
    ! [SV191: $i,SV150: $i,SV55: $i,SV241: $i] :
      ( ( ( ~ ( in @ SV241 @ SV55 )
          | ( in @ SV241 @ SV150 ) )
        = $true )
      | ( ( in @ SV241 @ SV191 )
        = $true )
      | ( ( SV191
          = ( set_difference @ SV55 @ SV150 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1119]) ).

thf(1157,plain,
    ! [SV150: $i,SV55: $i,SV191: $i] :
      ( ( ( ~ ! [SY420: $i] :
                ( ~ ( in @ SY420 @ SV191 )
                | ( in @ SY420 @ SV55 ) ) )
        = $false )
      | ( ( SV191
          = ( set_difference @ SV55 @ SV150 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1120]) ).

thf(1158,plain,
    ! [SV55: $i,SV150: $i,SV191: $i] :
      ( ( ( ~ ! [SY421: $i] :
                ( ~ ( in @ SY421 @ SV191 )
                | ~ ( in @ SY421 @ SV150 ) ) )
        = $false )
      | ( ( SV191
          = ( set_difference @ SV55 @ SV150 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1120]) ).

thf(1159,plain,
    ! [SV56: $i,SV151: $i,SV192: $i] :
      ( ( ( ~ ( in @ ( sK19_D @ SV192 @ SV151 @ SV56 ) @ SV192 )
          | ~ ( in @ ( sK19_D @ SV192 @ SV151 @ SV56 ) @ SV56 ) )
        = $true )
      | ( ( SV192
          = ( set_union2 @ SV56 @ SV151 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1121]) ).

thf(1160,plain,
    ! [SV56: $i,SV151: $i,SV192: $i] :
      ( ( ( ~ ( in @ ( sK19_D @ SV192 @ SV151 @ SV56 ) @ SV192 )
          | ~ ( in @ ( sK19_D @ SV192 @ SV151 @ SV56 ) @ SV151 ) )
        = $true )
      | ( ( SV192
          = ( set_union2 @ SV56 @ SV151 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1122]) ).

thf(1161,plain,
    ! [SV152: $i,SV56: $i,SV193: $i,SV242: $i] :
      ( ( ( ~ ( in @ SV242 @ SV193 ) )
        = $true )
      | ( ( ( in @ SV242 @ SV56 )
          | ( in @ SV242 @ SV152 ) )
        = $true )
      | ( ( SV193
          = ( set_union2 @ SV56 @ SV152 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1124]) ).

thf(1162,plain,
    ! [SV152: $i,SV193: $i,SV56: $i] :
      ( ( ( ~ ! [SY423: $i] :
                ( ~ ( in @ SY423 @ SV56 )
                | ( in @ SY423 @ SV193 ) ) )
        = $false )
      | ( ( SV193
          = ( set_union2 @ SV56 @ SV152 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1125]) ).

thf(1163,plain,
    ! [SV56: $i,SV193: $i,SV152: $i] :
      ( ( ( ~ ! [SY424: $i] :
                ( ~ ( in @ SY424 @ SV152 )
                | ( in @ SY424 @ SV193 ) ) )
        = $false )
      | ( ( SV193
          = ( set_union2 @ SV56 @ SV152 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1125]) ).

thf(1164,plain,
    ! [SV57: $i,SV159: $i,SV194: $i] :
      ( ( ( in @ ( sK12_D @ SV194 @ SV159 @ SV57 ) @ SV57 )
        = $false )
      | ( ( ~ ( in @ ( sK12_D @ SV194 @ SV159 @ SV57 ) @ SV159 ) )
        = $true )
      | ( ( ~ ( in @ ( sK12_D @ SV194 @ SV159 @ SV57 ) @ SV194 ) )
        = $true )
      | ( ( SV194
          = ( set_intersection2 @ SV57 @ SV159 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1126]) ).

thf(1165,plain,
    ! [SV57: $i,SV159: $i,SV194: $i] :
      ( ( ( ( in @ ( sK12_D @ SV194 @ SV159 @ SV57 ) @ SV57 )
          | ( in @ ( sK12_D @ SV194 @ SV159 @ SV57 ) @ SV194 ) )
        = $true )
      | ( ( SV194
          = ( set_intersection2 @ SV57 @ SV159 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1127]) ).

thf(1166,plain,
    ! [SV57: $i,SV159: $i,SV194: $i] :
      ( ( ( ( in @ ( sK12_D @ SV194 @ SV159 @ SV57 ) @ SV159 )
          | ( in @ ( sK12_D @ SV194 @ SV159 @ SV57 ) @ SV194 ) )
        = $true )
      | ( ( SV194
          = ( set_intersection2 @ SV57 @ SV159 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1128]) ).

thf(1167,plain,
    ! [SV195: $i,SV160: $i,SV57: $i,SV243: $i] :
      ( ( ( ~ ( in @ SV243 @ SV57 )
          | ~ ( in @ SV243 @ SV160 ) )
        = $true )
      | ( ( in @ SV243 @ SV195 )
        = $true )
      | ( ( SV195
          = ( set_intersection2 @ SV57 @ SV160 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1129]) ).

thf(1168,plain,
    ! [SV160: $i,SV57: $i,SV195: $i] :
      ( ( ( ~ ! [SY426: $i] :
                ( ~ ( in @ SY426 @ SV195 )
                | ( in @ SY426 @ SV57 ) ) )
        = $false )
      | ( ( SV195
          = ( set_intersection2 @ SV57 @ SV160 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1130]) ).

thf(1169,plain,
    ! [SV57: $i,SV160: $i,SV195: $i] :
      ( ( ( ~ ! [SY427: $i] :
                ( ~ ( in @ SY427 @ SV195 )
                | ( in @ SY427 @ SV160 ) ) )
        = $false )
      | ( ( SV195
          = ( set_intersection2 @ SV57 @ SV160 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1130]) ).

thf(1170,plain,
    ! [SV122: $i,SV162: $i,SV233: $i] :
      ( ( ( in @ SV233 @ SV162 )
        = $false )
      | ( ( subset @ SV233 @ SV122 )
        = $true )
      | ( ( SV162
          = ( powerset @ SV122 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1132]) ).

thf(1171,plain,
    ! [SV162: $i,SV122: $i,SV234: $i] :
      ( ( ( subset @ SV234 @ SV122 )
        = $false )
      | ( ( in @ SV234 @ SV162 )
        = $true )
      | ( ( SV162
          = ( powerset @ SV122 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1133]) ).

thf(1172,plain,
    ! [SV196: $i,SV167: $i,SV248: $i,SV58: $i,SV244: $i] :
      ( ( ( ~ ( in @ SV244 @ SV58 )
          | ~ ( in @ SV248 @ SV167 )
          | ( ( sK16_D @ SV196 @ SV167 @ SV58 )
           != ( ordered_pair @ SV244 @ SV248 ) ) )
        = $true )
      | ( ( ~ ( in @ ( sK16_D @ SV196 @ SV167 @ SV58 ) @ SV196 ) )
        = $true )
      | ( ( SV196
          = ( cartesian_product2 @ SV58 @ SV167 ) )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[1134]) ).

thf(1173,plain,
    ! [SV58: $i,SV167: $i,SV196: $i] :
      ( ( ( ~ ~ ( ~ ( in @ ( sK17_SY205 @ SV196 @ SV167 @ SV58 ) @ SV58 )
                | ~ ( in @ ( sK18_SY207 @ SV196 @ SV167 @ SV58 ) @ SV167 ) ) )
        = $false )
      | ( ( in @ ( sK16_D @ SV196 @ SV167 @ SV58 ) @ SV196 )
        = $true )
      | ( ( SV196
          = ( cartesian_product2 @ SV58 @ SV167 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1135]) ).

thf(1174,plain,
    ! [SV58: $i,SV167: $i,SV196: $i] :
      ( ( ( ( ( sK16_D @ SV196 @ SV167 @ SV58 )
           != ( ordered_pair @ ( sK17_SY205 @ SV196 @ SV167 @ SV58 ) @ ( sK18_SY207 @ SV196 @ SV167 @ SV58 ) ) ) )
        = $false )
      | ( ( in @ ( sK16_D @ SV196 @ SV167 @ SV58 ) @ SV196 )
        = $true )
      | ( ( SV196
          = ( cartesian_product2 @ SV58 @ SV167 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1135]) ).

thf(1175,plain,
    ! [SV197: $i,SV245: $i,SV168: $i,SV58: $i] :
      ( ( ( ! [SY454: $i,SY455: $i] :
              ( ~ ( in @ SY454 @ SV58 )
              | ~ ( in @ SY455 @ SV168 )
              | ( SV245
               != ( ordered_pair @ SY454 @ SY455 ) ) ) )
        = $true )
      | ( ( in @ SV245 @ SV197 )
        = $true )
      | ( ( SV197
          = ( cartesian_product2 @ SV58 @ SV168 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1136]) ).

thf(1176,plain,
    ! [SV58: $i,SV168: $i,SV197: $i,SV246: $i] :
      ( ( ( ~ ( in @ SV246 @ SV197 ) )
        = $true )
      | ( ( ~ ( ~ ~ ( ~ ( in @ ( sK14_E @ SV246 @ SV197 @ SV168 @ SV58 ) @ SV58 )
                    | ~ ( in @ ( sK15_SY202 @ SV246 @ SV197 @ SV168 @ SV58 ) @ SV168 ) )
              | ( SV246
               != ( ordered_pair @ ( sK14_E @ SV246 @ SV197 @ SV168 @ SV58 ) @ ( sK15_SY202 @ SV246 @ SV197 @ SV168 @ SV58 ) ) ) ) )
        = $true )
      | ( ( SV197
          = ( cartesian_product2 @ SV58 @ SV168 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1137]) ).

thf(1177,plain,
    ! [SV170: $i,SV128: $i,SV236: $i] :
      ( ( ( SV236 = SV128 )
        = $false )
      | ( ( in @ SV236 @ SV170 )
        = $true )
      | ( ( SV170
          = ( singleton @ SV128 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1141]) ).

thf(1178,plain,
    ! [SV128: $i,SV170: $i,SV237: $i] :
      ( ( ( in @ SV237 @ SV170 )
        = $false )
      | ( ( SV237 = SV128 )
        = $true )
      | ( ( SV170
          = ( singleton @ SV128 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1142]) ).

thf(1179,plain,
    ! [SV60: $i,SV175: $i,SV199: $i] :
      ( ( ( ~ ( in @ ( sK20_D @ SV199 @ SV175 @ SV60 ) @ SV199 )
          | ( ( sK20_D @ SV199 @ SV175 @ SV60 )
           != SV60 ) )
        = $true )
      | ( ( SV199
          = ( unordered_pair @ SV60 @ SV175 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1143]) ).

thf(1180,plain,
    ! [SV60: $i,SV175: $i,SV199: $i] :
      ( ( ( ~ ( in @ ( sK20_D @ SV199 @ SV175 @ SV60 ) @ SV199 )
          | ( ( sK20_D @ SV199 @ SV175 @ SV60 )
           != SV175 ) )
        = $true )
      | ( ( SV199
          = ( unordered_pair @ SV60 @ SV175 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1144]) ).

thf(1181,plain,
    ! [SV176: $i,SV60: $i,SV200: $i,SV247: $i] :
      ( ( ( ~ ( in @ SV247 @ SV200 ) )
        = $true )
      | ( ( ( SV247 = SV60 )
          | ( SV247 = SV176 ) )
        = $true )
      | ( ( SV200
          = ( unordered_pair @ SV60 @ SV176 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1146]) ).

thf(1182,plain,
    ! [SV176: $i,SV200: $i,SV60: $i] :
      ( ( ( ~ ! [SY436: $i] :
                ( ( SY436 != SV60 )
                | ( in @ SY436 @ SV200 ) ) )
        = $false )
      | ( ( SV200
          = ( unordered_pair @ SV60 @ SV176 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1147]) ).

thf(1183,plain,
    ! [SV60: $i,SV200: $i,SV176: $i] :
      ( ( ( ~ ! [SY437: $i] :
                ( ( SY437 != SV176 )
                | ( in @ SY437 @ SV200 ) ) )
        = $false )
      | ( ( SV200
          = ( unordered_pair @ SV60 @ SV176 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1147]) ).

thf(1184,plain,
    ! [SV238: $i,SV141: $i,SV185: $i] :
      ( ( ( in @ ( sK10_C @ SV185 @ SV141 ) @ SV238 )
        = $false )
      | ( ( ~ ( in @ SV238 @ SV141 ) )
        = $true )
      | ( ( ~ ( in @ ( sK10_C @ SV185 @ SV141 ) @ SV185 ) )
        = $true )
      | ( ( SV185
          = ( union @ SV141 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1148]) ).

thf(1185,plain,
    ! [SV141: $i,SV185: $i] :
      ( ( ( in @ ( sK10_C @ SV185 @ SV141 ) @ ( sK11_SY201 @ SV185 @ SV141 ) )
        = $true )
      | ( ( in @ ( sK10_C @ SV185 @ SV141 ) @ SV185 )
        = $true )
      | ( ( SV185
          = ( union @ SV141 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1149]) ).

thf(1186,plain,
    ! [SV141: $i,SV185: $i] :
      ( ( ( in @ ( sK11_SY201 @ SV185 @ SV141 ) @ SV141 )
        = $true )
      | ( ( in @ ( sK10_C @ SV185 @ SV141 ) @ SV185 )
        = $true )
      | ( ( SV185
          = ( union @ SV141 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1150]) ).

thf(1187,plain,
    ! [SV186: $i,SV142: $i,SV249: $i,SV239: $i] :
      ( ( ( ~ ( in @ SV239 @ SV249 )
          | ~ ( in @ SV249 @ SV142 ) )
        = $true )
      | ( ( in @ SV239 @ SV186 )
        = $true )
      | ( ( SV186
          = ( union @ SV142 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1151]) ).

thf(1188,plain,
    ! [SV142: $i,SV186: $i,SV240: $i] :
      ( ( ( in @ SV240 @ SV186 )
        = $false )
      | ( ( ~ ( ~ ( in @ SV240 @ ( sK9_D @ SV240 @ SV186 @ SV142 ) )
              | ~ ( in @ ( sK9_D @ SV240 @ SV186 @ SV142 ) @ SV142 ) ) )
        = $true )
      | ( ( SV186
          = ( union @ SV142 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1152]) ).

thf(1189,plain,
    ! [SV55: $i,SV149: $i,SV190: $i] :
      ( ( ( in @ ( sK8_D @ SV190 @ SV149 @ SV55 ) @ SV190 )
        = $false )
      | ( ( in @ ( sK8_D @ SV190 @ SV149 @ SV55 ) @ SV149 )
        = $true )
      | ( ( in @ ( sK8_D @ SV190 @ SV149 @ SV55 ) @ SV55 )
        = $false )
      | ( ( SV190
          = ( set_difference @ SV55 @ SV149 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1153]) ).

thf(1190,plain,
    ! [SV55: $i,SV149: $i,SV190: $i] :
      ( ( ( in @ ( sK8_D @ SV190 @ SV149 @ SV55 ) @ SV55 )
        = $true )
      | ( ( in @ ( sK8_D @ SV190 @ SV149 @ SV55 ) @ SV190 )
        = $true )
      | ( ( SV190
          = ( set_difference @ SV55 @ SV149 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1154]) ).

thf(1191,plain,
    ! [SV55: $i,SV149: $i,SV190: $i] :
      ( ( ( ~ ( in @ ( sK8_D @ SV190 @ SV149 @ SV55 ) @ SV149 ) )
        = $true )
      | ( ( in @ ( sK8_D @ SV190 @ SV149 @ SV55 ) @ SV190 )
        = $true )
      | ( ( SV190
          = ( set_difference @ SV55 @ SV149 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1155]) ).

thf(1192,plain,
    ! [SV191: $i,SV150: $i,SV55: $i,SV241: $i] :
      ( ( ( ~ ( in @ SV241 @ SV55 ) )
        = $true )
      | ( ( in @ SV241 @ SV150 )
        = $true )
      | ( ( in @ SV241 @ SV191 )
        = $true )
      | ( ( SV191
          = ( set_difference @ SV55 @ SV150 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1156]) ).

thf(1193,plain,
    ! [SV150: $i,SV55: $i,SV191: $i] :
      ( ( ( ! [SY420: $i] :
              ( ~ ( in @ SY420 @ SV191 )
              | ( in @ SY420 @ SV55 ) ) )
        = $true )
      | ( ( SV191
          = ( set_difference @ SV55 @ SV150 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1157]) ).

thf(1194,plain,
    ! [SV55: $i,SV150: $i,SV191: $i] :
      ( ( ( ! [SY421: $i] :
              ( ~ ( in @ SY421 @ SV191 )
              | ~ ( in @ SY421 @ SV150 ) ) )
        = $true )
      | ( ( SV191
          = ( set_difference @ SV55 @ SV150 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1158]) ).

thf(1195,plain,
    ! [SV56: $i,SV151: $i,SV192: $i] :
      ( ( ( ~ ( in @ ( sK19_D @ SV192 @ SV151 @ SV56 ) @ SV192 ) )
        = $true )
      | ( ( ~ ( in @ ( sK19_D @ SV192 @ SV151 @ SV56 ) @ SV56 ) )
        = $true )
      | ( ( SV192
          = ( set_union2 @ SV56 @ SV151 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1159]) ).

thf(1196,plain,
    ! [SV56: $i,SV151: $i,SV192: $i] :
      ( ( ( ~ ( in @ ( sK19_D @ SV192 @ SV151 @ SV56 ) @ SV192 ) )
        = $true )
      | ( ( ~ ( in @ ( sK19_D @ SV192 @ SV151 @ SV56 ) @ SV151 ) )
        = $true )
      | ( ( SV192
          = ( set_union2 @ SV56 @ SV151 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1160]) ).

thf(1197,plain,
    ! [SV152: $i,SV56: $i,SV193: $i,SV242: $i] :
      ( ( ( in @ SV242 @ SV193 )
        = $false )
      | ( ( ( in @ SV242 @ SV56 )
          | ( in @ SV242 @ SV152 ) )
        = $true )
      | ( ( SV193
          = ( set_union2 @ SV56 @ SV152 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1161]) ).

thf(1198,plain,
    ! [SV152: $i,SV193: $i,SV56: $i] :
      ( ( ( ! [SY423: $i] :
              ( ~ ( in @ SY423 @ SV56 )
              | ( in @ SY423 @ SV193 ) ) )
        = $true )
      | ( ( SV193
          = ( set_union2 @ SV56 @ SV152 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1162]) ).

thf(1199,plain,
    ! [SV56: $i,SV193: $i,SV152: $i] :
      ( ( ( ! [SY424: $i] :
              ( ~ ( in @ SY424 @ SV152 )
              | ( in @ SY424 @ SV193 ) ) )
        = $true )
      | ( ( SV193
          = ( set_union2 @ SV56 @ SV152 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1163]) ).

thf(1200,plain,
    ! [SV57: $i,SV159: $i,SV194: $i] :
      ( ( ( in @ ( sK12_D @ SV194 @ SV159 @ SV57 ) @ SV159 )
        = $false )
      | ( ( in @ ( sK12_D @ SV194 @ SV159 @ SV57 ) @ SV57 )
        = $false )
      | ( ( ~ ( in @ ( sK12_D @ SV194 @ SV159 @ SV57 ) @ SV194 ) )
        = $true )
      | ( ( SV194
          = ( set_intersection2 @ SV57 @ SV159 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1164]) ).

thf(1201,plain,
    ! [SV57: $i,SV159: $i,SV194: $i] :
      ( ( ( in @ ( sK12_D @ SV194 @ SV159 @ SV57 ) @ SV57 )
        = $true )
      | ( ( in @ ( sK12_D @ SV194 @ SV159 @ SV57 ) @ SV194 )
        = $true )
      | ( ( SV194
          = ( set_intersection2 @ SV57 @ SV159 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1165]) ).

thf(1202,plain,
    ! [SV57: $i,SV159: $i,SV194: $i] :
      ( ( ( in @ ( sK12_D @ SV194 @ SV159 @ SV57 ) @ SV159 )
        = $true )
      | ( ( in @ ( sK12_D @ SV194 @ SV159 @ SV57 ) @ SV194 )
        = $true )
      | ( ( SV194
          = ( set_intersection2 @ SV57 @ SV159 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1166]) ).

thf(1203,plain,
    ! [SV195: $i,SV160: $i,SV57: $i,SV243: $i] :
      ( ( ( ~ ( in @ SV243 @ SV57 ) )
        = $true )
      | ( ( ~ ( in @ SV243 @ SV160 ) )
        = $true )
      | ( ( in @ SV243 @ SV195 )
        = $true )
      | ( ( SV195
          = ( set_intersection2 @ SV57 @ SV160 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1167]) ).

thf(1204,plain,
    ! [SV160: $i,SV57: $i,SV195: $i] :
      ( ( ( ! [SY426: $i] :
              ( ~ ( in @ SY426 @ SV195 )
              | ( in @ SY426 @ SV57 ) ) )
        = $true )
      | ( ( SV195
          = ( set_intersection2 @ SV57 @ SV160 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1168]) ).

thf(1205,plain,
    ! [SV57: $i,SV160: $i,SV195: $i] :
      ( ( ( ! [SY427: $i] :
              ( ~ ( in @ SY427 @ SV195 )
              | ( in @ SY427 @ SV160 ) ) )
        = $true )
      | ( ( SV195
          = ( set_intersection2 @ SV57 @ SV160 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1169]) ).

thf(1206,plain,
    ! [SV196: $i,SV167: $i,SV248: $i,SV58: $i,SV244: $i] :
      ( ( ( ~ ( in @ SV244 @ SV58 )
          | ~ ( in @ SV248 @ SV167 ) )
        = $true )
      | ( ( ( ( sK16_D @ SV196 @ SV167 @ SV58 )
           != ( ordered_pair @ SV244 @ SV248 ) ) )
        = $true )
      | ( ( ~ ( in @ ( sK16_D @ SV196 @ SV167 @ SV58 ) @ SV196 ) )
        = $true )
      | ( ( SV196
          = ( cartesian_product2 @ SV58 @ SV167 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1172]) ).

thf(1207,plain,
    ! [SV58: $i,SV167: $i,SV196: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK17_SY205 @ SV196 @ SV167 @ SV58 ) @ SV58 )
              | ~ ( in @ ( sK18_SY207 @ SV196 @ SV167 @ SV58 ) @ SV167 ) ) )
        = $true )
      | ( ( in @ ( sK16_D @ SV196 @ SV167 @ SV58 ) @ SV196 )
        = $true )
      | ( ( SV196
          = ( cartesian_product2 @ SV58 @ SV167 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1173]) ).

thf(1208,plain,
    ! [SV58: $i,SV167: $i,SV196: $i] :
      ( ( ( ( sK16_D @ SV196 @ SV167 @ SV58 )
          = ( ordered_pair @ ( sK17_SY205 @ SV196 @ SV167 @ SV58 ) @ ( sK18_SY207 @ SV196 @ SV167 @ SV58 ) ) )
        = $true )
      | ( ( in @ ( sK16_D @ SV196 @ SV167 @ SV58 ) @ SV196 )
        = $true )
      | ( ( SV196
          = ( cartesian_product2 @ SV58 @ SV167 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1174]) ).

thf(1209,plain,
    ! [SV197: $i,SV245: $i,SV168: $i,SV58: $i,SV250: $i] :
      ( ( ( ! [SY456: $i] :
              ( ~ ( in @ SV250 @ SV58 )
              | ~ ( in @ SY456 @ SV168 )
              | ( SV245
               != ( ordered_pair @ SV250 @ SY456 ) ) ) )
        = $true )
      | ( ( in @ SV245 @ SV197 )
        = $true )
      | ( ( SV197
          = ( cartesian_product2 @ SV58 @ SV168 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1175]) ).

thf(1210,plain,
    ! [SV58: $i,SV168: $i,SV197: $i,SV246: $i] :
      ( ( ( in @ SV246 @ SV197 )
        = $false )
      | ( ( ~ ( ~ ~ ( ~ ( in @ ( sK14_E @ SV246 @ SV197 @ SV168 @ SV58 ) @ SV58 )
                    | ~ ( in @ ( sK15_SY202 @ SV246 @ SV197 @ SV168 @ SV58 ) @ SV168 ) )
              | ( SV246
               != ( ordered_pair @ ( sK14_E @ SV246 @ SV197 @ SV168 @ SV58 ) @ ( sK15_SY202 @ SV246 @ SV197 @ SV168 @ SV58 ) ) ) ) )
        = $true )
      | ( ( SV197
          = ( cartesian_product2 @ SV58 @ SV168 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1176]) ).

thf(1211,plain,
    ! [SV60: $i,SV175: $i,SV199: $i] :
      ( ( ( ~ ( in @ ( sK20_D @ SV199 @ SV175 @ SV60 ) @ SV199 ) )
        = $true )
      | ( ( ( ( sK20_D @ SV199 @ SV175 @ SV60 )
           != SV60 ) )
        = $true )
      | ( ( SV199
          = ( unordered_pair @ SV60 @ SV175 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1179]) ).

thf(1212,plain,
    ! [SV60: $i,SV175: $i,SV199: $i] :
      ( ( ( ~ ( in @ ( sK20_D @ SV199 @ SV175 @ SV60 ) @ SV199 ) )
        = $true )
      | ( ( ( ( sK20_D @ SV199 @ SV175 @ SV60 )
           != SV175 ) )
        = $true )
      | ( ( SV199
          = ( unordered_pair @ SV60 @ SV175 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1180]) ).

thf(1213,plain,
    ! [SV176: $i,SV60: $i,SV200: $i,SV247: $i] :
      ( ( ( in @ SV247 @ SV200 )
        = $false )
      | ( ( ( SV247 = SV60 )
          | ( SV247 = SV176 ) )
        = $true )
      | ( ( SV200
          = ( unordered_pair @ SV60 @ SV176 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1181]) ).

thf(1214,plain,
    ! [SV176: $i,SV200: $i,SV60: $i] :
      ( ( ( ! [SY436: $i] :
              ( ( SY436 != SV60 )
              | ( in @ SY436 @ SV200 ) ) )
        = $true )
      | ( ( SV200
          = ( unordered_pair @ SV60 @ SV176 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1182]) ).

thf(1215,plain,
    ! [SV60: $i,SV200: $i,SV176: $i] :
      ( ( ( ! [SY437: $i] :
              ( ( SY437 != SV176 )
              | ( in @ SY437 @ SV200 ) ) )
        = $true )
      | ( ( SV200
          = ( unordered_pair @ SV60 @ SV176 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1183]) ).

thf(1216,plain,
    ! [SV185: $i,SV141: $i,SV238: $i] :
      ( ( ( in @ SV238 @ SV141 )
        = $false )
      | ( ( in @ ( sK10_C @ SV185 @ SV141 ) @ SV238 )
        = $false )
      | ( ( ~ ( in @ ( sK10_C @ SV185 @ SV141 ) @ SV185 ) )
        = $true )
      | ( ( SV185
          = ( union @ SV141 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1184]) ).

thf(1217,plain,
    ! [SV186: $i,SV142: $i,SV249: $i,SV239: $i] :
      ( ( ( ~ ( in @ SV239 @ SV249 ) )
        = $true )
      | ( ( ~ ( in @ SV249 @ SV142 ) )
        = $true )
      | ( ( in @ SV239 @ SV186 )
        = $true )
      | ( ( SV186
          = ( union @ SV142 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1187]) ).

thf(1218,plain,
    ! [SV142: $i,SV186: $i,SV240: $i] :
      ( ( ( ~ ( in @ SV240 @ ( sK9_D @ SV240 @ SV186 @ SV142 ) )
          | ~ ( in @ ( sK9_D @ SV240 @ SV186 @ SV142 ) @ SV142 ) )
        = $false )
      | ( ( in @ SV240 @ SV186 )
        = $false )
      | ( ( SV186
          = ( union @ SV142 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1188]) ).

thf(1219,plain,
    ! [SV55: $i,SV149: $i,SV190: $i] :
      ( ( ( in @ ( sK8_D @ SV190 @ SV149 @ SV55 ) @ SV149 )
        = $false )
      | ( ( in @ ( sK8_D @ SV190 @ SV149 @ SV55 ) @ SV190 )
        = $true )
      | ( ( SV190
          = ( set_difference @ SV55 @ SV149 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1191]) ).

thf(1220,plain,
    ! [SV191: $i,SV150: $i,SV55: $i,SV241: $i] :
      ( ( ( in @ SV241 @ SV55 )
        = $false )
      | ( ( in @ SV241 @ SV150 )
        = $true )
      | ( ( in @ SV241 @ SV191 )
        = $true )
      | ( ( SV191
          = ( set_difference @ SV55 @ SV150 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1192]) ).

thf(1221,plain,
    ! [SV150: $i,SV55: $i,SV191: $i,SV251: $i] :
      ( ( ( ~ ( in @ SV251 @ SV191 )
          | ( in @ SV251 @ SV55 ) )
        = $true )
      | ( ( SV191
          = ( set_difference @ SV55 @ SV150 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1193]) ).

thf(1222,plain,
    ! [SV55: $i,SV150: $i,SV191: $i,SV252: $i] :
      ( ( ( ~ ( in @ SV252 @ SV191 )
          | ~ ( in @ SV252 @ SV150 ) )
        = $true )
      | ( ( SV191
          = ( set_difference @ SV55 @ SV150 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1194]) ).

thf(1223,plain,
    ! [SV56: $i,SV151: $i,SV192: $i] :
      ( ( ( in @ ( sK19_D @ SV192 @ SV151 @ SV56 ) @ SV192 )
        = $false )
      | ( ( ~ ( in @ ( sK19_D @ SV192 @ SV151 @ SV56 ) @ SV56 ) )
        = $true )
      | ( ( SV192
          = ( set_union2 @ SV56 @ SV151 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1195]) ).

thf(1224,plain,
    ! [SV56: $i,SV151: $i,SV192: $i] :
      ( ( ( in @ ( sK19_D @ SV192 @ SV151 @ SV56 ) @ SV192 )
        = $false )
      | ( ( ~ ( in @ ( sK19_D @ SV192 @ SV151 @ SV56 ) @ SV151 ) )
        = $true )
      | ( ( SV192
          = ( set_union2 @ SV56 @ SV151 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1196]) ).

thf(1225,plain,
    ! [SV193: $i,SV152: $i,SV56: $i,SV242: $i] :
      ( ( ( in @ SV242 @ SV56 )
        = $true )
      | ( ( in @ SV242 @ SV152 )
        = $true )
      | ( ( in @ SV242 @ SV193 )
        = $false )
      | ( ( SV193
          = ( set_union2 @ SV56 @ SV152 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1197]) ).

thf(1226,plain,
    ! [SV152: $i,SV193: $i,SV56: $i,SV253: $i] :
      ( ( ( ~ ( in @ SV253 @ SV56 )
          | ( in @ SV253 @ SV193 ) )
        = $true )
      | ( ( SV193
          = ( set_union2 @ SV56 @ SV152 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1198]) ).

thf(1227,plain,
    ! [SV56: $i,SV193: $i,SV152: $i,SV254: $i] :
      ( ( ( ~ ( in @ SV254 @ SV152 )
          | ( in @ SV254 @ SV193 ) )
        = $true )
      | ( ( SV193
          = ( set_union2 @ SV56 @ SV152 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1199]) ).

thf(1228,plain,
    ! [SV57: $i,SV159: $i,SV194: $i] :
      ( ( ( in @ ( sK12_D @ SV194 @ SV159 @ SV57 ) @ SV194 )
        = $false )
      | ( ( in @ ( sK12_D @ SV194 @ SV159 @ SV57 ) @ SV57 )
        = $false )
      | ( ( in @ ( sK12_D @ SV194 @ SV159 @ SV57 ) @ SV159 )
        = $false )
      | ( ( SV194
          = ( set_intersection2 @ SV57 @ SV159 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1200]) ).

thf(1229,plain,
    ! [SV195: $i,SV160: $i,SV57: $i,SV243: $i] :
      ( ( ( in @ SV243 @ SV57 )
        = $false )
      | ( ( ~ ( in @ SV243 @ SV160 ) )
        = $true )
      | ( ( in @ SV243 @ SV195 )
        = $true )
      | ( ( SV195
          = ( set_intersection2 @ SV57 @ SV160 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1203]) ).

thf(1230,plain,
    ! [SV160: $i,SV57: $i,SV195: $i,SV255: $i] :
      ( ( ( ~ ( in @ SV255 @ SV195 )
          | ( in @ SV255 @ SV57 ) )
        = $true )
      | ( ( SV195
          = ( set_intersection2 @ SV57 @ SV160 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1204]) ).

thf(1231,plain,
    ! [SV57: $i,SV160: $i,SV195: $i,SV256: $i] :
      ( ( ( ~ ( in @ SV256 @ SV195 )
          | ( in @ SV256 @ SV160 ) )
        = $true )
      | ( ( SV195
          = ( set_intersection2 @ SV57 @ SV160 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1205]) ).

thf(1232,plain,
    ! [SV196: $i,SV167: $i,SV248: $i,SV58: $i,SV244: $i] :
      ( ( ( ~ ( in @ SV244 @ SV58 ) )
        = $true )
      | ( ( ~ ( in @ SV248 @ SV167 ) )
        = $true )
      | ( ( ( ( sK16_D @ SV196 @ SV167 @ SV58 )
           != ( ordered_pair @ SV244 @ SV248 ) ) )
        = $true )
      | ( ( ~ ( in @ ( sK16_D @ SV196 @ SV167 @ SV58 ) @ SV196 ) )
        = $true )
      | ( ( SV196
          = ( cartesian_product2 @ SV58 @ SV167 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1206]) ).

thf(1233,plain,
    ! [SV58: $i,SV167: $i,SV196: $i] :
      ( ( ( ~ ( in @ ( sK17_SY205 @ SV196 @ SV167 @ SV58 ) @ SV58 )
          | ~ ( in @ ( sK18_SY207 @ SV196 @ SV167 @ SV58 ) @ SV167 ) )
        = $false )
      | ( ( in @ ( sK16_D @ SV196 @ SV167 @ SV58 ) @ SV196 )
        = $true )
      | ( ( SV196
          = ( cartesian_product2 @ SV58 @ SV167 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1207]) ).

thf(1234,plain,
    ! [SV197: $i,SV245: $i,SV168: $i,SV257: $i,SV58: $i,SV250: $i] :
      ( ( ( ~ ( in @ SV250 @ SV58 )
          | ~ ( in @ SV257 @ SV168 )
          | ( SV245
           != ( ordered_pair @ SV250 @ SV257 ) ) )
        = $true )
      | ( ( in @ SV245 @ SV197 )
        = $true )
      | ( ( SV197
          = ( cartesian_product2 @ SV58 @ SV168 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1209]) ).

thf(1235,plain,
    ! [SV58: $i,SV168: $i,SV197: $i,SV246: $i] :
      ( ( ( ~ ~ ( ~ ( in @ ( sK14_E @ SV246 @ SV197 @ SV168 @ SV58 ) @ SV58 )
                | ~ ( in @ ( sK15_SY202 @ SV246 @ SV197 @ SV168 @ SV58 ) @ SV168 ) )
          | ( SV246
           != ( ordered_pair @ ( sK14_E @ SV246 @ SV197 @ SV168 @ SV58 ) @ ( sK15_SY202 @ SV246 @ SV197 @ SV168 @ SV58 ) ) ) )
        = $false )
      | ( ( in @ SV246 @ SV197 )
        = $false )
      | ( ( SV197
          = ( cartesian_product2 @ SV58 @ SV168 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1210]) ).

thf(1236,plain,
    ! [SV60: $i,SV175: $i,SV199: $i] :
      ( ( ( in @ ( sK20_D @ SV199 @ SV175 @ SV60 ) @ SV199 )
        = $false )
      | ( ( ( ( sK20_D @ SV199 @ SV175 @ SV60 )
           != SV60 ) )
        = $true )
      | ( ( SV199
          = ( unordered_pair @ SV60 @ SV175 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1211]) ).

thf(1237,plain,
    ! [SV60: $i,SV175: $i,SV199: $i] :
      ( ( ( in @ ( sK20_D @ SV199 @ SV175 @ SV60 ) @ SV199 )
        = $false )
      | ( ( ( ( sK20_D @ SV199 @ SV175 @ SV60 )
           != SV175 ) )
        = $true )
      | ( ( SV199
          = ( unordered_pair @ SV60 @ SV175 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1212]) ).

thf(1238,plain,
    ! [SV200: $i,SV176: $i,SV60: $i,SV247: $i] :
      ( ( ( SV247 = SV60 )
        = $true )
      | ( ( SV247 = SV176 )
        = $true )
      | ( ( in @ SV247 @ SV200 )
        = $false )
      | ( ( SV200
          = ( unordered_pair @ SV60 @ SV176 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1213]) ).

thf(1239,plain,
    ! [SV176: $i,SV200: $i,SV60: $i,SV258: $i] :
      ( ( ( ( SV258 != SV60 )
          | ( in @ SV258 @ SV200 ) )
        = $true )
      | ( ( SV200
          = ( unordered_pair @ SV60 @ SV176 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1214]) ).

thf(1240,plain,
    ! [SV60: $i,SV200: $i,SV176: $i,SV259: $i] :
      ( ( ( ( SV259 != SV176 )
          | ( in @ SV259 @ SV200 ) )
        = $true )
      | ( ( SV200
          = ( unordered_pair @ SV60 @ SV176 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1215]) ).

thf(1241,plain,
    ! [SV238: $i,SV141: $i,SV185: $i] :
      ( ( ( in @ ( sK10_C @ SV185 @ SV141 ) @ SV185 )
        = $false )
      | ( ( in @ ( sK10_C @ SV185 @ SV141 ) @ SV238 )
        = $false )
      | ( ( in @ SV238 @ SV141 )
        = $false )
      | ( ( SV185
          = ( union @ SV141 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1216]) ).

thf(1242,plain,
    ! [SV186: $i,SV142: $i,SV249: $i,SV239: $i] :
      ( ( ( in @ SV239 @ SV249 )
        = $false )
      | ( ( ~ ( in @ SV249 @ SV142 ) )
        = $true )
      | ( ( in @ SV239 @ SV186 )
        = $true )
      | ( ( SV186
          = ( union @ SV142 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1217]) ).

thf(1243,plain,
    ! [SV142: $i,SV186: $i,SV240: $i] :
      ( ( ( ~ ( in @ SV240 @ ( sK9_D @ SV240 @ SV186 @ SV142 ) ) )
        = $false )
      | ( ( in @ SV240 @ SV186 )
        = $false )
      | ( ( SV186
          = ( union @ SV142 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1218]) ).

thf(1244,plain,
    ! [SV142: $i,SV186: $i,SV240: $i] :
      ( ( ( ~ ( in @ ( sK9_D @ SV240 @ SV186 @ SV142 ) @ SV142 ) )
        = $false )
      | ( ( in @ SV240 @ SV186 )
        = $false )
      | ( ( SV186
          = ( union @ SV142 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1218]) ).

thf(1245,plain,
    ! [SV150: $i,SV55: $i,SV191: $i,SV251: $i] :
      ( ( ( ~ ( in @ SV251 @ SV191 ) )
        = $true )
      | ( ( in @ SV251 @ SV55 )
        = $true )
      | ( ( SV191
          = ( set_difference @ SV55 @ SV150 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1221]) ).

thf(1246,plain,
    ! [SV55: $i,SV150: $i,SV191: $i,SV252: $i] :
      ( ( ( ~ ( in @ SV252 @ SV191 ) )
        = $true )
      | ( ( ~ ( in @ SV252 @ SV150 ) )
        = $true )
      | ( ( SV191
          = ( set_difference @ SV55 @ SV150 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1222]) ).

thf(1247,plain,
    ! [SV56: $i,SV151: $i,SV192: $i] :
      ( ( ( in @ ( sK19_D @ SV192 @ SV151 @ SV56 ) @ SV56 )
        = $false )
      | ( ( in @ ( sK19_D @ SV192 @ SV151 @ SV56 ) @ SV192 )
        = $false )
      | ( ( SV192
          = ( set_union2 @ SV56 @ SV151 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1223]) ).

thf(1248,plain,
    ! [SV56: $i,SV151: $i,SV192: $i] :
      ( ( ( in @ ( sK19_D @ SV192 @ SV151 @ SV56 ) @ SV151 )
        = $false )
      | ( ( in @ ( sK19_D @ SV192 @ SV151 @ SV56 ) @ SV192 )
        = $false )
      | ( ( SV192
          = ( set_union2 @ SV56 @ SV151 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1224]) ).

thf(1249,plain,
    ! [SV152: $i,SV193: $i,SV56: $i,SV253: $i] :
      ( ( ( ~ ( in @ SV253 @ SV56 ) )
        = $true )
      | ( ( in @ SV253 @ SV193 )
        = $true )
      | ( ( SV193
          = ( set_union2 @ SV56 @ SV152 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1226]) ).

thf(1250,plain,
    ! [SV56: $i,SV193: $i,SV152: $i,SV254: $i] :
      ( ( ( ~ ( in @ SV254 @ SV152 ) )
        = $true )
      | ( ( in @ SV254 @ SV193 )
        = $true )
      | ( ( SV193
          = ( set_union2 @ SV56 @ SV152 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1227]) ).

thf(1251,plain,
    ! [SV195: $i,SV57: $i,SV160: $i,SV243: $i] :
      ( ( ( in @ SV243 @ SV160 )
        = $false )
      | ( ( in @ SV243 @ SV57 )
        = $false )
      | ( ( in @ SV243 @ SV195 )
        = $true )
      | ( ( SV195
          = ( set_intersection2 @ SV57 @ SV160 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1229]) ).

thf(1252,plain,
    ! [SV160: $i,SV57: $i,SV195: $i,SV255: $i] :
      ( ( ( ~ ( in @ SV255 @ SV195 ) )
        = $true )
      | ( ( in @ SV255 @ SV57 )
        = $true )
      | ( ( SV195
          = ( set_intersection2 @ SV57 @ SV160 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1230]) ).

thf(1253,plain,
    ! [SV57: $i,SV160: $i,SV195: $i,SV256: $i] :
      ( ( ( ~ ( in @ SV256 @ SV195 ) )
        = $true )
      | ( ( in @ SV256 @ SV160 )
        = $true )
      | ( ( SV195
          = ( set_intersection2 @ SV57 @ SV160 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1231]) ).

thf(1254,plain,
    ! [SV196: $i,SV167: $i,SV248: $i,SV58: $i,SV244: $i] :
      ( ( ( in @ SV244 @ SV58 )
        = $false )
      | ( ( ~ ( in @ SV248 @ SV167 ) )
        = $true )
      | ( ( ( ( sK16_D @ SV196 @ SV167 @ SV58 )
           != ( ordered_pair @ SV244 @ SV248 ) ) )
        = $true )
      | ( ( ~ ( in @ ( sK16_D @ SV196 @ SV167 @ SV58 ) @ SV196 ) )
        = $true )
      | ( ( SV196
          = ( cartesian_product2 @ SV58 @ SV167 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1232]) ).

thf(1255,plain,
    ! [SV58: $i,SV167: $i,SV196: $i] :
      ( ( ( ~ ( in @ ( sK17_SY205 @ SV196 @ SV167 @ SV58 ) @ SV58 ) )
        = $false )
      | ( ( in @ ( sK16_D @ SV196 @ SV167 @ SV58 ) @ SV196 )
        = $true )
      | ( ( SV196
          = ( cartesian_product2 @ SV58 @ SV167 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1233]) ).

thf(1256,plain,
    ! [SV58: $i,SV167: $i,SV196: $i] :
      ( ( ( ~ ( in @ ( sK18_SY207 @ SV196 @ SV167 @ SV58 ) @ SV167 ) )
        = $false )
      | ( ( in @ ( sK16_D @ SV196 @ SV167 @ SV58 ) @ SV196 )
        = $true )
      | ( ( SV196
          = ( cartesian_product2 @ SV58 @ SV167 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1233]) ).

thf(1257,plain,
    ! [SV197: $i,SV245: $i,SV168: $i,SV257: $i,SV58: $i,SV250: $i] :
      ( ( ( ~ ( in @ SV250 @ SV58 )
          | ~ ( in @ SV257 @ SV168 ) )
        = $true )
      | ( ( ( SV245
           != ( ordered_pair @ SV250 @ SV257 ) ) )
        = $true )
      | ( ( in @ SV245 @ SV197 )
        = $true )
      | ( ( SV197
          = ( cartesian_product2 @ SV58 @ SV168 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1234]) ).

thf(1258,plain,
    ! [SV58: $i,SV168: $i,SV197: $i,SV246: $i] :
      ( ( ( ~ ~ ( ~ ( in @ ( sK14_E @ SV246 @ SV197 @ SV168 @ SV58 ) @ SV58 )
                | ~ ( in @ ( sK15_SY202 @ SV246 @ SV197 @ SV168 @ SV58 ) @ SV168 ) ) )
        = $false )
      | ( ( in @ SV246 @ SV197 )
        = $false )
      | ( ( SV197
          = ( cartesian_product2 @ SV58 @ SV168 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1235]) ).

thf(1259,plain,
    ! [SV58: $i,SV168: $i,SV197: $i,SV246: $i] :
      ( ( ( ( SV246
           != ( ordered_pair @ ( sK14_E @ SV246 @ SV197 @ SV168 @ SV58 ) @ ( sK15_SY202 @ SV246 @ SV197 @ SV168 @ SV58 ) ) ) )
        = $false )
      | ( ( in @ SV246 @ SV197 )
        = $false )
      | ( ( SV197
          = ( cartesian_product2 @ SV58 @ SV168 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1235]) ).

thf(1260,plain,
    ! [SV60: $i,SV175: $i,SV199: $i] :
      ( ( ( ( sK20_D @ SV199 @ SV175 @ SV60 )
          = SV60 )
        = $false )
      | ( ( in @ ( sK20_D @ SV199 @ SV175 @ SV60 ) @ SV199 )
        = $false )
      | ( ( SV199
          = ( unordered_pair @ SV60 @ SV175 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1236]) ).

thf(1261,plain,
    ! [SV60: $i,SV175: $i,SV199: $i] :
      ( ( ( ( sK20_D @ SV199 @ SV175 @ SV60 )
          = SV175 )
        = $false )
      | ( ( in @ ( sK20_D @ SV199 @ SV175 @ SV60 ) @ SV199 )
        = $false )
      | ( ( SV199
          = ( unordered_pair @ SV60 @ SV175 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1237]) ).

thf(1262,plain,
    ! [SV176: $i,SV200: $i,SV60: $i,SV258: $i] :
      ( ( ( ( SV258 != SV60 ) )
        = $true )
      | ( ( in @ SV258 @ SV200 )
        = $true )
      | ( ( SV200
          = ( unordered_pair @ SV60 @ SV176 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1239]) ).

thf(1263,plain,
    ! [SV60: $i,SV200: $i,SV176: $i,SV259: $i] :
      ( ( ( ( SV259 != SV176 ) )
        = $true )
      | ( ( in @ SV259 @ SV200 )
        = $true )
      | ( ( SV200
          = ( unordered_pair @ SV60 @ SV176 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1240]) ).

thf(1264,plain,
    ! [SV186: $i,SV239: $i,SV142: $i,SV249: $i] :
      ( ( ( in @ SV249 @ SV142 )
        = $false )
      | ( ( in @ SV239 @ SV249 )
        = $false )
      | ( ( in @ SV239 @ SV186 )
        = $true )
      | ( ( SV186
          = ( union @ SV142 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1242]) ).

thf(1265,plain,
    ! [SV142: $i,SV186: $i,SV240: $i] :
      ( ( ( in @ SV240 @ ( sK9_D @ SV240 @ SV186 @ SV142 ) )
        = $true )
      | ( ( in @ SV240 @ SV186 )
        = $false )
      | ( ( SV186
          = ( union @ SV142 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1243]) ).

thf(1266,plain,
    ! [SV142: $i,SV186: $i,SV240: $i] :
      ( ( ( in @ ( sK9_D @ SV240 @ SV186 @ SV142 ) @ SV142 )
        = $true )
      | ( ( in @ SV240 @ SV186 )
        = $false )
      | ( ( SV186
          = ( union @ SV142 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1244]) ).

thf(1267,plain,
    ! [SV150: $i,SV55: $i,SV191: $i,SV251: $i] :
      ( ( ( in @ SV251 @ SV191 )
        = $false )
      | ( ( in @ SV251 @ SV55 )
        = $true )
      | ( ( SV191
          = ( set_difference @ SV55 @ SV150 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1245]) ).

thf(1268,plain,
    ! [SV55: $i,SV150: $i,SV191: $i,SV252: $i] :
      ( ( ( in @ SV252 @ SV191 )
        = $false )
      | ( ( ~ ( in @ SV252 @ SV150 ) )
        = $true )
      | ( ( SV191
          = ( set_difference @ SV55 @ SV150 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1246]) ).

thf(1269,plain,
    ! [SV152: $i,SV193: $i,SV56: $i,SV253: $i] :
      ( ( ( in @ SV253 @ SV56 )
        = $false )
      | ( ( in @ SV253 @ SV193 )
        = $true )
      | ( ( SV193
          = ( set_union2 @ SV56 @ SV152 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1249]) ).

thf(1270,plain,
    ! [SV56: $i,SV193: $i,SV152: $i,SV254: $i] :
      ( ( ( in @ SV254 @ SV152 )
        = $false )
      | ( ( in @ SV254 @ SV193 )
        = $true )
      | ( ( SV193
          = ( set_union2 @ SV56 @ SV152 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1250]) ).

thf(1271,plain,
    ! [SV160: $i,SV57: $i,SV195: $i,SV255: $i] :
      ( ( ( in @ SV255 @ SV195 )
        = $false )
      | ( ( in @ SV255 @ SV57 )
        = $true )
      | ( ( SV195
          = ( set_intersection2 @ SV57 @ SV160 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1252]) ).

thf(1272,plain,
    ! [SV57: $i,SV160: $i,SV195: $i,SV256: $i] :
      ( ( ( in @ SV256 @ SV195 )
        = $false )
      | ( ( in @ SV256 @ SV160 )
        = $true )
      | ( ( SV195
          = ( set_intersection2 @ SV57 @ SV160 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1253]) ).

thf(1273,plain,
    ! [SV196: $i,SV58: $i,SV244: $i,SV167: $i,SV248: $i] :
      ( ( ( in @ SV248 @ SV167 )
        = $false )
      | ( ( in @ SV244 @ SV58 )
        = $false )
      | ( ( ( ( sK16_D @ SV196 @ SV167 @ SV58 )
           != ( ordered_pair @ SV244 @ SV248 ) ) )
        = $true )
      | ( ( ~ ( in @ ( sK16_D @ SV196 @ SV167 @ SV58 ) @ SV196 ) )
        = $true )
      | ( ( SV196
          = ( cartesian_product2 @ SV58 @ SV167 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1254]) ).

thf(1274,plain,
    ! [SV58: $i,SV167: $i,SV196: $i] :
      ( ( ( in @ ( sK17_SY205 @ SV196 @ SV167 @ SV58 ) @ SV58 )
        = $true )
      | ( ( in @ ( sK16_D @ SV196 @ SV167 @ SV58 ) @ SV196 )
        = $true )
      | ( ( SV196
          = ( cartesian_product2 @ SV58 @ SV167 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1255]) ).

thf(1275,plain,
    ! [SV58: $i,SV167: $i,SV196: $i] :
      ( ( ( in @ ( sK18_SY207 @ SV196 @ SV167 @ SV58 ) @ SV167 )
        = $true )
      | ( ( in @ ( sK16_D @ SV196 @ SV167 @ SV58 ) @ SV196 )
        = $true )
      | ( ( SV196
          = ( cartesian_product2 @ SV58 @ SV167 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1256]) ).

thf(1276,plain,
    ! [SV197: $i,SV245: $i,SV168: $i,SV257: $i,SV58: $i,SV250: $i] :
      ( ( ( ~ ( in @ SV250 @ SV58 ) )
        = $true )
      | ( ( ~ ( in @ SV257 @ SV168 ) )
        = $true )
      | ( ( ( SV245
           != ( ordered_pair @ SV250 @ SV257 ) ) )
        = $true )
      | ( ( in @ SV245 @ SV197 )
        = $true )
      | ( ( SV197
          = ( cartesian_product2 @ SV58 @ SV168 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1257]) ).

thf(1277,plain,
    ! [SV58: $i,SV168: $i,SV197: $i,SV246: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK14_E @ SV246 @ SV197 @ SV168 @ SV58 ) @ SV58 )
              | ~ ( in @ ( sK15_SY202 @ SV246 @ SV197 @ SV168 @ SV58 ) @ SV168 ) ) )
        = $true )
      | ( ( in @ SV246 @ SV197 )
        = $false )
      | ( ( SV197
          = ( cartesian_product2 @ SV58 @ SV168 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1258]) ).

thf(1278,plain,
    ! [SV58: $i,SV168: $i,SV197: $i,SV246: $i] :
      ( ( ( SV246
          = ( ordered_pair @ ( sK14_E @ SV246 @ SV197 @ SV168 @ SV58 ) @ ( sK15_SY202 @ SV246 @ SV197 @ SV168 @ SV58 ) ) )
        = $true )
      | ( ( in @ SV246 @ SV197 )
        = $false )
      | ( ( SV197
          = ( cartesian_product2 @ SV58 @ SV168 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1259]) ).

thf(1279,plain,
    ! [SV176: $i,SV200: $i,SV60: $i,SV258: $i] :
      ( ( ( SV258 = SV60 )
        = $false )
      | ( ( in @ SV258 @ SV200 )
        = $true )
      | ( ( SV200
          = ( unordered_pair @ SV60 @ SV176 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1262]) ).

thf(1280,plain,
    ! [SV60: $i,SV200: $i,SV176: $i,SV259: $i] :
      ( ( ( SV259 = SV176 )
        = $false )
      | ( ( in @ SV259 @ SV200 )
        = $true )
      | ( ( SV200
          = ( unordered_pair @ SV60 @ SV176 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1263]) ).

thf(1281,plain,
    ! [SV55: $i,SV191: $i,SV150: $i,SV252: $i] :
      ( ( ( in @ SV252 @ SV150 )
        = $false )
      | ( ( in @ SV252 @ SV191 )
        = $false )
      | ( ( SV191
          = ( set_difference @ SV55 @ SV150 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1268]) ).

thf(1282,plain,
    ! [SV248: $i,SV244: $i,SV58: $i,SV167: $i,SV196: $i] :
      ( ( ( ( sK16_D @ SV196 @ SV167 @ SV58 )
          = ( ordered_pair @ SV244 @ SV248 ) )
        = $false )
      | ( ( in @ SV244 @ SV58 )
        = $false )
      | ( ( in @ SV248 @ SV167 )
        = $false )
      | ( ( ~ ( in @ ( sK16_D @ SV196 @ SV167 @ SV58 ) @ SV196 ) )
        = $true )
      | ( ( SV196
          = ( cartesian_product2 @ SV58 @ SV167 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1273]) ).

thf(1283,plain,
    ! [SV197: $i,SV245: $i,SV168: $i,SV257: $i,SV58: $i,SV250: $i] :
      ( ( ( in @ SV250 @ SV58 )
        = $false )
      | ( ( ~ ( in @ SV257 @ SV168 ) )
        = $true )
      | ( ( ( SV245
           != ( ordered_pair @ SV250 @ SV257 ) ) )
        = $true )
      | ( ( in @ SV245 @ SV197 )
        = $true )
      | ( ( SV197
          = ( cartesian_product2 @ SV58 @ SV168 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1276]) ).

thf(1284,plain,
    ! [SV58: $i,SV168: $i,SV197: $i,SV246: $i] :
      ( ( ( ~ ( in @ ( sK14_E @ SV246 @ SV197 @ SV168 @ SV58 ) @ SV58 )
          | ~ ( in @ ( sK15_SY202 @ SV246 @ SV197 @ SV168 @ SV58 ) @ SV168 ) )
        = $false )
      | ( ( in @ SV246 @ SV197 )
        = $false )
      | ( ( SV197
          = ( cartesian_product2 @ SV58 @ SV168 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1277]) ).

thf(1285,plain,
    ! [SV244: $i,SV248: $i,SV58: $i,SV167: $i,SV196: $i] :
      ( ( ( in @ ( sK16_D @ SV196 @ SV167 @ SV58 ) @ SV196 )
        = $false )
      | ( ( in @ SV248 @ SV167 )
        = $false )
      | ( ( in @ SV244 @ SV58 )
        = $false )
      | ( ( ( sK16_D @ SV196 @ SV167 @ SV58 )
          = ( ordered_pair @ SV244 @ SV248 ) )
        = $false )
      | ( ( SV196
          = ( cartesian_product2 @ SV58 @ SV167 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1282]) ).

thf(1286,plain,
    ! [SV197: $i,SV245: $i,SV58: $i,SV250: $i,SV168: $i,SV257: $i] :
      ( ( ( in @ SV257 @ SV168 )
        = $false )
      | ( ( in @ SV250 @ SV58 )
        = $false )
      | ( ( ( SV245
           != ( ordered_pair @ SV250 @ SV257 ) ) )
        = $true )
      | ( ( in @ SV245 @ SV197 )
        = $true )
      | ( ( SV197
          = ( cartesian_product2 @ SV58 @ SV168 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1283]) ).

thf(1287,plain,
    ! [SV58: $i,SV168: $i,SV197: $i,SV246: $i] :
      ( ( ( ~ ( in @ ( sK14_E @ SV246 @ SV197 @ SV168 @ SV58 ) @ SV58 ) )
        = $false )
      | ( ( in @ SV246 @ SV197 )
        = $false )
      | ( ( SV197
          = ( cartesian_product2 @ SV58 @ SV168 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1284]) ).

thf(1288,plain,
    ! [SV58: $i,SV168: $i,SV197: $i,SV246: $i] :
      ( ( ( ~ ( in @ ( sK15_SY202 @ SV246 @ SV197 @ SV168 @ SV58 ) @ SV168 ) )
        = $false )
      | ( ( in @ SV246 @ SV197 )
        = $false )
      | ( ( SV197
          = ( cartesian_product2 @ SV58 @ SV168 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1284]) ).

thf(1289,plain,
    ! [SV197: $i,SV168: $i,SV58: $i,SV257: $i,SV250: $i,SV245: $i] :
      ( ( ( SV245
          = ( ordered_pair @ SV250 @ SV257 ) )
        = $false )
      | ( ( in @ SV250 @ SV58 )
        = $false )
      | ( ( in @ SV257 @ SV168 )
        = $false )
      | ( ( in @ SV245 @ SV197 )
        = $true )
      | ( ( SV197
          = ( cartesian_product2 @ SV58 @ SV168 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1286]) ).

thf(1290,plain,
    ! [SV58: $i,SV168: $i,SV197: $i,SV246: $i] :
      ( ( ( in @ ( sK14_E @ SV246 @ SV197 @ SV168 @ SV58 ) @ SV58 )
        = $true )
      | ( ( in @ SV246 @ SV197 )
        = $false )
      | ( ( SV197
          = ( cartesian_product2 @ SV58 @ SV168 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1287]) ).

thf(1291,plain,
    ! [SV58: $i,SV168: $i,SV197: $i,SV246: $i] :
      ( ( ( in @ ( sK15_SY202 @ SV246 @ SV197 @ SV168 @ SV58 ) @ SV168 )
        = $true )
      | ( ( in @ SV246 @ SV197 )
        = $false )
      | ( ( SV197
          = ( cartesian_product2 @ SV58 @ SV168 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1288]) ).

thf(1292,plain,
    $false = $true,
    inference(fo_atp_e,[status(thm)],[281,1291,1290,1289,1285,1281,1280,1279,1278,1275,1274,1272,1271,1270,1269,1267,1266,1265,1264,1261,1260,1251,1248,1247,1241,1238,1228,1225,1220,1219,1208,1202,1201,1190,1189,1186,1185,1178,1177,1171,1170,1145,1140,1139,1138,1131,1123,1111,1106,1100,1080,1079,1074,1072,1071,1070,1069,1068,1067,1061,1060,1057,1046,1030,1029,1020,1019,1018,1009,1008,1005,987,977,970,962,959,939,927,923,922,910,909,892,891,890,889,883,882,881,880,871,870,869,868,867,866,817,815,807,801,757,740,739,738,737,736,733,732,731,726,669,668,667,663,660,657,656,654,650,648,645,600,589,585,573,563,509,505,504,503,502,495,491,488,486,485,479,471,439,438,437,436,434,433,431,430,419,413,402,348,341,340,339,338,337,336,335,334,333,332,331]) ).

thf(1293,plain,
    ( ( ! [A: $i] :
          ( ( singleton @ A )
         != empty_set ) )
    = $true ),
    inference(copy,[status(thm)],[265]) ).

thf(1294,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( in @ A @ B )
          | ( ( set_union2 @ ( singleton @ A ) @ B )
            = B ) ) )
    = $true ),
    inference(copy,[status(thm)],[264]) ).

thf(1295,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( disjoint @ ( singleton @ A ) @ B )
          | ~ ( in @ A @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[263]) ).

thf(1296,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( in @ A @ B )
          | ( disjoint @ ( singleton @ A ) @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[262]) ).

thf(1297,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)],[261]) ).

thf(1298,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)],[260]) ).

thf(1299,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)],[259]) ).

thf(1300,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)],[258]) ).

thf(1301,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( in @ A @ B )
          | ( subset @ A @ ( union @ B ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[257]) ).

thf(1302,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)],[256]) ).

thf(1303,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)],[255]) ).

thf(1304,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( subset @ A @ B )
          | ( ( set_union2 @ A @ B )
            = B ) ) )
    = $true ),
    inference(copy,[status(thm)],[254]) ).

thf(1305,plain,
    ( ( ! [A: $i,B: $i] : ( subset @ ( set_intersection2 @ A @ B ) @ A ) )
    = $true ),
    inference(copy,[status(thm)],[179]) ).

thf(1306,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ~ ( subset @ A @ B )
          | ~ ( subset @ A @ C )
          | ( subset @ A @ ( set_intersection2 @ B @ C ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[253]) ).

thf(1307,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ~ ( subset @ A @ B )
          | ~ ( subset @ B @ C )
          | ( subset @ A @ C ) ) )
    = $true ),
    inference(copy,[status(thm)],[252]) ).

thf(1308,plain,
    ( ( ( powerset @ empty_set )
      = ( singleton @ empty_set ) )
    = $true ),
    inference(copy,[status(thm)],[176]) ).

thf(1309,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( subset @ A @ B )
          | ! [C: $i] : ( subset @ ( set_intersection2 @ A @ C ) @ ( set_intersection2 @ B @ C ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[251]) ).

thf(1310,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( subset @ A @ B )
          | ( ( set_intersection2 @ A @ B )
            = A ) ) )
    = $true ),
    inference(copy,[status(thm)],[250]) ).

thf(1311,plain,
    ( ( ! [A: $i] : ( subset @ empty_set @ A ) )
    = $true ),
    inference(copy,[status(thm)],[173]) ).

thf(1312,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( subset @ A @ B )
          | ! [C: $i] : ( subset @ ( set_difference @ A @ C ) @ ( set_difference @ B @ C ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[249]) ).

thf(1313,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)],[248]) ).

thf(1314,plain,
    ( ( ! [A: $i,B: $i] : ( subset @ ( set_difference @ A @ B ) @ A ) )
    = $true ),
    inference(copy,[status(thm)],[170]) ).

thf(1315,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)],[247]) ).

thf(1316,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)],[246]) ).

thf(1317,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)],[245]) ).

thf(1318,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( set_union2 @ A @ ( set_difference @ B @ A ) )
          = ( set_union2 @ A @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[166]) ).

thf(1319,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)],[244]) ).

thf(1320,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( disjoint @ A @ B )
          | ( ( in @ ( sK25_C @ B @ A ) @ A )
            & ( in @ ( sK25_C @ B @ A ) @ B ) ) )
      & ! [A: $i,B: $i] :
          ( ! [C: $i] :
              ( ~ ( in @ C @ A )
              | ~ ( in @ C @ B ) )
          | ~ ( disjoint @ A @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[243]) ).

thf(1321,plain,
    ( ( ! [A: $i] :
          ( ~ ( subset @ A @ empty_set )
          | ( A = empty_set ) ) )
    = $true ),
    inference(copy,[status(thm)],[242]) ).

thf(1322,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( set_difference @ ( set_union2 @ A @ B ) @ B )
          = ( set_difference @ A @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[162]) ).

thf(1323,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( subset @ A @ B )
          | ( B
            = ( set_union2 @ A @ ( set_difference @ B @ A ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[241]) ).

thf(1324,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( in @ A @ B )
          | ( ( set_union2 @ ( singleton @ A ) @ B )
            = B ) ) )
    = $true ),
    inference(copy,[status(thm)],[240]) ).

thf(1325,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( set_difference @ A @ ( set_difference @ A @ B ) )
          = ( set_intersection2 @ A @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[159]) ).

thf(1326,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( disjoint @ A @ B )
          | ( in @ ( sK24_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)],[239]) ).

thf(1327,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( proper_subset @ B @ A )
          | ~ ( subset @ A @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[238]) ).

thf(1328,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ~ ( disjoint @ B @ C )
          | ~ ( subset @ A @ B )
          | ( disjoint @ A @ C ) ) )
    = $true ),
    inference(copy,[status(thm)],[237]) ).

thf(1329,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( ( set_difference @ A @ ( singleton @ B ) )
           != A )
          | ~ ( in @ B @ A ) )
      & ! [A: $i,B: $i] :
          ( ( in @ B @ A )
          | ( ( set_difference @ A @ ( singleton @ B ) )
            = A ) ) )
    = $true ),
    inference(copy,[status(thm)],[236]) ).

thf(1330,plain,
    ( ( ! [A: $i] :
          ( ( unordered_pair @ A @ A )
          = ( singleton @ A ) ) )
    = $true ),
    inference(copy,[status(thm)],[154]) ).

thf(1331,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( subset @ ( singleton @ A ) @ ( singleton @ B ) )
          | ( A = B ) ) )
    = $true ),
    inference(copy,[status(thm)],[235]) ).

thf(1332,plain,
    ( ( ! [A: $i,B: $i] : ( subset @ A @ ( set_union2 @ A @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[152]) ).

thf(1333,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)],[234]) ).

thf(1334,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ~ ( subset @ A @ B )
          | ~ ( subset @ C @ B )
          | ( subset @ ( set_union2 @ A @ C ) @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[233]) ).

thf(1335,plain,
    ( ( ! [A: $i,B: $i] :
          ( ! [C: $i] :
              ( ( singleton @ A )
             != ( unordered_pair @ B @ C ) )
          | ( A = B ) ) )
    = $true ),
    inference(copy,[status(thm)],[232]) ).

thf(1336,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( in @ A @ B )
          | ( subset @ A @ ( union @ B ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[231]) ).

thf(1337,plain,
    ( ( ! [A: $i] :
          ( ( union @ ( powerset @ A ) )
          = A ) )
    = $true ),
    inference(copy,[status(thm)],[147]) ).

thf(1338,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ( ( singleton @ A )
           != ( unordered_pair @ B @ C ) )
          | ( B = C ) ) )
    = $true ),
    inference(copy,[status(thm)],[230]) ).

thf(1339,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( in @ A @ B )
          | ~ ( in @ B @ A ) ) )
    = $true ),
    inference(copy,[status(thm)],[229]) ).

thf(1340,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( proper_subset @ A @ B )
          | ~ ( proper_subset @ B @ A ) ) )
    = $true ),
    inference(copy,[status(thm)],[228]) ).

thf(1341,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( unordered_pair @ A @ B )
          = ( unordered_pair @ B @ A ) ) )
    = $true ),
    inference(copy,[status(thm)],[143]) ).

thf(1342,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( set_union2 @ A @ B )
          = ( set_union2 @ B @ A ) ) )
    = $true ),
    inference(copy,[status(thm)],[142]) ).

thf(1343,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( set_intersection2 @ A @ B )
          = ( set_intersection2 @ B @ A ) ) )
    = $true ),
    inference(copy,[status(thm)],[141]) ).

thf(1344,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)],[227]) ).

thf(1345,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( ( ( ( sK23_C @ B @ A )
               != A )
              | ~ ( in @ ( sK23_C @ B @ A ) @ B ) )
            & ( ( ( sK23_C @ B @ A )
                = A )
              | ( in @ ( sK23_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)],[226]) ).

thf(1346,plain,
    ( ( ! [A: $i] :
          ( ( in @ ( sK22_B @ A ) @ A )
          | ( A = empty_set ) )
      & ! [A: $i] :
          ( ( A != empty_set )
          | ! [B: $i] :
              ~ ( in @ B @ A ) ) )
    = $true ),
    inference(copy,[status(thm)],[225]) ).

thf(1347,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( ( ~ ( in @ ( sK21_C @ B @ A ) @ B )
              | ~ ( subset @ ( sK21_C @ B @ A ) @ A ) )
            & ( ( in @ ( sK21_C @ B @ A ) @ B )
              | ( subset @ ( sK21_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)],[224]) ).

thf(1348,plain,
    ( ( ! [A: $i] :
          ( ! [B: $i,C: $i] :
              ( ( ( ~ ( in @ ( sK20_D @ C @ B @ A ) @ C )
                  | ( ( sK20_D @ C @ B @ A )
                   != A ) )
                & ( ~ ( in @ ( sK20_D @ C @ B @ A ) @ C )
                  | ( ( sK20_D @ C @ B @ A )
                   != B ) )
                & ( ( in @ ( sK20_D @ C @ B @ A ) @ C )
                  | ( ( sK20_D @ C @ B @ A )
                    = A )
                  | ( ( sK20_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)],[223]) ).

thf(1349,plain,
    ( ( ! [A: $i] :
          ( ! [B: $i,C: $i] :
              ( ( ( ~ ( in @ ( sK19_D @ C @ B @ A ) @ C )
                  | ~ ( in @ ( sK19_D @ C @ B @ A ) @ A ) )
                & ( ~ ( in @ ( sK19_D @ C @ B @ A ) @ C )
                  | ~ ( in @ ( sK19_D @ C @ B @ A ) @ B ) )
                & ( ( in @ ( sK19_D @ C @ B @ A ) @ C )
                  | ( in @ ( sK19_D @ C @ B @ A ) @ A )
                  | ( in @ ( sK19_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)],[222]) ).

thf(1350,plain,
    ( ( ! [A: $i] :
          ( ! [B: $i,C: $i] :
              ( ( ( ! [SY203: $i,SY204: $i] :
                      ( ~ ( in @ SY203 @ A )
                      | ~ ( in @ SY204 @ B )
                      | ( ( sK16_D @ C @ B @ A )
                       != ( ordered_pair @ SY203 @ SY204 ) ) )
                  | ~ ( in @ ( sK16_D @ C @ B @ A ) @ C ) )
                & ( ( ( in @ ( sK17_SY205 @ C @ B @ A ) @ A )
                    & ( in @ ( sK18_SY207 @ C @ B @ A ) @ B )
                    & ( ( sK16_D @ C @ B @ A )
                      = ( ordered_pair @ ( sK17_SY205 @ C @ B @ A ) @ ( sK18_SY207 @ C @ B @ A ) ) ) )
                  | ( in @ ( sK16_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 @ ( sK14_E @ D @ C @ B @ A ) @ A )
                      & ( in @ ( sK15_SY202 @ D @ C @ B @ A ) @ B )
                      & ( D
                        = ( ordered_pair @ ( sK14_E @ D @ C @ B @ A ) @ ( sK15_SY202 @ D @ C @ B @ A ) ) ) ) ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[221]) ).

thf(1351,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( ( in @ ( sK13_C @ B @ A ) @ A )
            & ~ ( in @ ( sK13_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)],[220]) ).

thf(1352,plain,
    ( ( ! [A: $i] :
          ( ! [B: $i,C: $i] :
              ( ( ( ~ ( in @ ( sK12_D @ C @ B @ A ) @ A )
                  | ~ ( in @ ( sK12_D @ C @ B @ A ) @ B )
                  | ~ ( in @ ( sK12_D @ C @ B @ A ) @ C ) )
                & ( ( in @ ( sK12_D @ C @ B @ A ) @ A )
                  | ( in @ ( sK12_D @ C @ B @ A ) @ C ) )
                & ( ( in @ ( sK12_D @ C @ B @ A ) @ B )
                  | ( in @ ( sK12_D @ C @ B @ A ) @ C ) ) )
              | ( C
                = ( set_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)],[219]) ).

thf(1353,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( ( ! [SY200: $i] :
                  ( ~ ( in @ ( sK10_C @ B @ A ) @ SY200 )
                  | ~ ( in @ SY200 @ A ) )
              | ~ ( in @ ( sK10_C @ B @ A ) @ B ) )
            & ( ( ( in @ ( sK10_C @ B @ A ) @ ( sK11_SY201 @ B @ A ) )
                & ( in @ ( sK11_SY201 @ B @ A ) @ A ) )
              | ( in @ ( sK10_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 @ ( sK9_D @ C @ B @ A ) )
                  & ( in @ ( sK9_D @ C @ B @ A ) @ A ) ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[218]) ).

thf(1354,plain,
    ( ( ! [A: $i] :
          ( ! [B: $i,C: $i] :
              ( ( ( ~ ( in @ ( sK8_D @ C @ B @ A ) @ A )
                  | ( in @ ( sK8_D @ C @ B @ A ) @ B )
                  | ~ ( in @ ( sK8_D @ C @ B @ A ) @ C ) )
                & ( ( in @ ( sK8_D @ C @ B @ A ) @ A )
                  | ( in @ ( sK8_D @ C @ B @ A ) @ C ) )
                & ( ~ ( in @ ( sK8_D @ C @ B @ A ) @ B )
                  | ( in @ ( sK8_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)],[217]) ).

thf(1355,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( ordered_pair @ A @ B )
          = ( unordered_pair @ ( unordered_pair @ A @ B ) @ ( singleton @ A ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[129]) ).

thf(1356,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)],[216]) ).

thf(1357,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)],[215]) ).

thf(1358,plain,
    $true = $true,
    inference(copy,[status(thm)],[126]) ).

thf(1359,plain,
    $true = $true,
    inference(copy,[status(thm)],[125]) ).

thf(1360,plain,
    $true = $true,
    inference(copy,[status(thm)],[124]) ).

thf(1361,plain,
    $true = $true,
    inference(copy,[status(thm)],[123]) ).

thf(1362,plain,
    $true = $true,
    inference(copy,[status(thm)],[122]) ).

thf(1363,plain,
    $true = $true,
    inference(copy,[status(thm)],[121]) ).

thf(1364,plain,
    $true = $true,
    inference(copy,[status(thm)],[120]) ).

thf(1365,plain,
    $true = $true,
    inference(copy,[status(thm)],[119]) ).

thf(1366,plain,
    $true = $true,
    inference(copy,[status(thm)],[118]) ).

thf(1367,plain,
    $true = $true,
    inference(copy,[status(thm)],[117]) ).

thf(1368,plain,
    ( ( empty @ empty_set )
    = $true ),
    inference(copy,[status(thm)],[116]) ).

thf(1369,plain,
    ( ( ! [A: $i,B: $i] :
          ~ ( empty @ ( ordered_pair @ A @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[115]) ).

thf(1370,plain,
    ( ( ! [A: $i] :
          ( ( empty @ A )
          | ! [B: $i] :
              ~ ( empty @ ( set_union2 @ A @ B ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[214]) ).

thf(1371,plain,
    ( ( ! [A: $i] :
          ( ( empty @ A )
          | ! [B: $i] :
              ~ ( empty @ ( set_union2 @ B @ A ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[213]) ).

thf(1372,plain,
    ( ( ! [A: $i] :
          ( ( set_union2 @ A @ A )
          = A ) )
    = $true ),
    inference(copy,[status(thm)],[212]) ).

thf(1373,plain,
    ( ( ! [A: $i] :
          ( ( set_intersection2 @ A @ A )
          = A ) )
    = $true ),
    inference(copy,[status(thm)],[211]) ).

thf(1374,plain,
    ( ( ! [A: $i] :
          ~ ( proper_subset @ A @ A ) )
    = $true ),
    inference(copy,[status(thm)],[210]) ).

thf(1375,plain,
    ( ( empty @ sK7_A )
    = $true ),
    inference(copy,[status(thm)],[209]) ).

thf(1376,plain,
    ( ( ~ ( empty @ sK6_A ) )
    = $true ),
    inference(copy,[status(thm)],[208]) ).

thf(1377,plain,
    ( ( ! [A: $i] : ( subset @ A @ A ) )
    = $true ),
    inference(copy,[status(thm)],[207]) ).

thf(1378,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( disjoint @ A @ B )
          | ( disjoint @ B @ A ) ) )
    = $true ),
    inference(copy,[status(thm)],[206]) ).

thf(1379,plain,
    ( ( ! [A: $i] :
          ( ( set_union2 @ A @ empty_set )
          = A ) )
    = $true ),
    inference(copy,[status(thm)],[105]) ).

thf(1380,plain,
    ( ( ! [A: $i] :
          ( ( set_intersection2 @ A @ empty_set )
          = empty_set ) )
    = $true ),
    inference(copy,[status(thm)],[104]) ).

thf(1381,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( ( ~ ( in @ ( sK5_C @ B @ A ) @ A )
              | ~ ( in @ ( sK5_C @ B @ A ) @ B ) )
            & ( ( in @ ( sK5_C @ B @ A ) @ A )
              | ( in @ ( sK5_C @ B @ A ) @ B ) ) )
          | ( A = B ) ) )
    = $true ),
    inference(copy,[status(thm)],[205]) ).

thf(1382,plain,
    ( ( ! [A: $i] :
          ( ( set_difference @ A @ empty_set )
          = A ) )
    = $true ),
    inference(copy,[status(thm)],[102]) ).

thf(1383,plain,
    ( ( ! [A: $i] :
          ( ( set_difference @ empty_set @ A )
          = empty_set ) )
    = $true ),
    inference(copy,[status(thm)],[101]) ).

thf(1384,plain,
    ( ( ! [A: $i] :
          ( ~ ( empty @ A )
          | ( A = empty_set ) ) )
    = $true ),
    inference(copy,[status(thm)],[204]) ).

thf(1385,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( empty @ B )
          | ~ ( in @ A @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[203]) ).

thf(1386,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( A = B )
          | ~ ( empty @ A )
          | ~ ( empty @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[202]) ).

thf(1387,plain,
    ( ( ( in @ sK1_A @ sK3_SY197 )
      & ( in @ sK2_SY194 @ sK4_SY199 )
      & ~ ( in @ ( ordered_pair @ sK1_A @ sK2_SY194 ) @ ( cartesian_product2 @ sK3_SY197 @ sK4_SY199 ) ) )
    = $true ),
    inference(copy,[status(thm)],[201]) ).

thf(1388,plain,
    ( ( ~ ( ~ ! [SX0: $i,SX1: $i] :
                ( ~ ( ~ ( ! [SX2: $i] :
                            ( ~ ( in @ ( sK10_C @ SX1 @ SX0 ) @ SX2 )
                            | ~ ( in @ SX2 @ SX0 ) )
                        | ~ ( in @ ( sK10_C @ SX1 @ SX0 ) @ SX1 ) )
                    | ~ ( ~ ( ~ ( in @ ( sK10_C @ SX1 @ SX0 ) @ ( sK11_SY201 @ SX1 @ SX0 ) )
                            | ~ ( in @ ( sK11_SY201 @ SX1 @ SX0 ) @ SX0 ) )
                        | ( in @ ( sK10_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 @ ( sK9_D @ SX2 @ SX1 @ SX0 ) )
                              | ~ ( in @ ( sK9_D @ SX2 @ SX1 @ SX0 ) @ SX0 ) ) ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[1353]) ).

thf(1389,plain,
    ( ( ~ ( ~ ! [SX0: $i,SX1: $i] :
                ( ( ( set_difference @ SX0 @ ( singleton @ SX1 ) )
                 != SX0 )
                | ~ ( in @ SX1 @ SX0 ) )
          | ~ ! [SX0: $i,SX1: $i] :
                ( ( in @ SX1 @ SX0 )
                | ( ( set_difference @ SX0 @ ( singleton @ SX1 ) )
                  = SX0 ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[1329]) ).

thf(1390,plain,
    ( ( ~ ( ~ ! [SX0: $i,SX1: $i] :
                ( ~ ( ~ ( in @ ( sK13_C @ SX1 @ SX0 ) @ SX0 )
                    | ~ ~ ( in @ ( sK13_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)],[1351]) ).

thf(1391,plain,
    ( ( ~ ( ~ ! [SX0: $i,SX1: $i] :
                ( ~ ( ~ ( ( ( sK23_C @ SX1 @ SX0 )
                         != SX0 )
                        | ~ ( in @ ( sK23_C @ SX1 @ SX0 ) @ SX1 ) )
                    | ~ ( ( ( sK23_C @ SX1 @ SX0 )
                          = SX0 )
                        | ( in @ ( sK23_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)],[1345]) ).

thf(1392,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)],[1356]) ).

thf(1393,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)],[1357]) ).

thf(1394,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)],[1302]) ).

thf(1395,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)],[1316]) ).

thf(1396,plain,
    ( ( ! [SX0: $i] :
          ~ ( ~ ! [SX1: $i,SX2: $i] :
                  ( ~ ( ~ ( ~ ( in @ ( sK12_D @ SX2 @ SX1 @ SX0 ) @ SX0 )
                          | ~ ( in @ ( sK12_D @ SX2 @ SX1 @ SX0 ) @ SX1 )
                          | ~ ( in @ ( sK12_D @ SX2 @ SX1 @ SX0 ) @ SX2 ) )
                      | ~ ~ ( ~ ( ( in @ ( sK12_D @ SX2 @ SX1 @ SX0 ) @ SX0 )
                                | ( in @ ( sK12_D @ SX2 @ SX1 @ SX0 ) @ SX2 ) )
                            | ~ ( ( in @ ( sK12_D @ SX2 @ SX1 @ SX0 ) @ SX1 )
                                | ( in @ ( sK12_D @ SX2 @ SX1 @ SX0 ) @ SX2 ) ) ) )
                  | ( SX2
                    = ( set_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)],[1352]) ).

thf(1397,plain,
    ( ( ~ ( ~ ! [SX0: $i,SX1: $i] :
                ( ~ ( ~ ( ~ ( in @ ( sK21_C @ SX1 @ SX0 ) @ SX1 )
                        | ~ ( subset @ ( sK21_C @ SX1 @ SX0 ) @ SX0 ) )
                    | ~ ( ( in @ ( sK21_C @ SX1 @ SX0 ) @ SX1 )
                        | ( subset @ ( sK21_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)],[1347]) ).

thf(1398,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( ~ ( ~ ( in @ ( sK5_C @ SX1 @ SX0 ) @ SX0 )
                  | ~ ( in @ ( sK5_C @ SX1 @ SX0 ) @ SX1 ) )
              | ~ ( ( in @ ( sK5_C @ SX1 @ SX0 ) @ SX0 )
                  | ( in @ ( sK5_C @ SX1 @ SX0 ) @ SX1 ) ) )
          | ( SX0 = SX1 ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[1381]) ).

thf(1399,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)],[1333]) ).

thf(1400,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)],[1313]) ).

thf(1401,plain,
    ( ( ! [SX0: $i] :
          ~ ( ~ ! [SX1: $i,SX2: $i] :
                  ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK19_D @ SX2 @ SX1 @ SX0 ) @ SX2 )
                                | ~ ( in @ ( sK19_D @ SX2 @ SX1 @ SX0 ) @ SX0 ) )
                            | ~ ( ~ ( in @ ( sK19_D @ SX2 @ SX1 @ SX0 ) @ SX2 )
                                | ~ ( in @ ( sK19_D @ SX2 @ SX1 @ SX0 ) @ SX1 ) ) )
                      | ~ ( ( in @ ( sK19_D @ SX2 @ SX1 @ SX0 ) @ SX2 )
                          | ( in @ ( sK19_D @ SX2 @ SX1 @ SX0 ) @ SX0 )
                          | ( in @ ( sK19_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)],[1349]) ).

thf(1402,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)],[1344]) ).

thf(1403,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)],[1317]) ).

thf(1404,plain,
    ( ( ! [SX0: $i] :
          ~ ( ~ ! [SX1: $i,SX2: $i] :
                  ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK20_D @ SX2 @ SX1 @ SX0 ) @ SX2 )
                                | ( ( sK20_D @ SX2 @ SX1 @ SX0 )
                                 != SX0 ) )
                            | ~ ( ~ ( in @ ( sK20_D @ SX2 @ SX1 @ SX0 ) @ SX2 )
                                | ( ( sK20_D @ SX2 @ SX1 @ SX0 )
                                 != SX1 ) ) )
                      | ~ ( ( in @ ( sK20_D @ SX2 @ SX1 @ SX0 ) @ SX2 )
                          | ( ( sK20_D @ SX2 @ SX1 @ SX0 )
                            = SX0 )
                          | ( ( sK20_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)],[1348]) ).

thf(1405,plain,
    ( ( ~ ( ~ ! [SX0: $i] :
                ( ( in @ ( sK22_B @ SX0 ) @ SX0 )
                | ( SX0 = empty_set ) )
          | ~ ! [SX0: $i] :
                ( ( SX0 != empty_set )
                | ! [SX1: $i] :
                    ~ ( in @ SX1 @ SX0 ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[1346]) ).

thf(1406,plain,
    ( ( ~ ( ~ ~ ( ~ ( in @ sK1_A @ sK3_SY197 )
                | ~ ( in @ sK2_SY194 @ sK4_SY199 ) )
          | ~ ~ ( in @ ( ordered_pair @ sK1_A @ sK2_SY194 ) @ ( cartesian_product2 @ sK3_SY197 @ sK4_SY199 ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[1387]) ).

thf(1407,plain,
    ( ( ! [SX0: $i] :
          ~ ( ~ ! [SX1: $i,SX2: $i] :
                  ( ~ ( ~ ( ~ ( in @ ( sK8_D @ SX2 @ SX1 @ SX0 ) @ SX0 )
                          | ( in @ ( sK8_D @ SX2 @ SX1 @ SX0 ) @ SX1 )
                          | ~ ( in @ ( sK8_D @ SX2 @ SX1 @ SX0 ) @ SX2 ) )
                      | ~ ~ ( ~ ( ( in @ ( sK8_D @ SX2 @ SX1 @ SX0 ) @ SX0 )
                                | ( in @ ( sK8_D @ SX2 @ SX1 @ SX0 ) @ SX2 ) )
                            | ~ ( ~ ( in @ ( sK8_D @ SX2 @ SX1 @ SX0 ) @ SX1 )
                                | ( in @ ( sK8_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)],[1354]) ).

thf(1408,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)],[1298]) ).

thf(1409,plain,
    ( ( ~ ( ~ ! [SX0: $i,SX1: $i] :
                ( ( disjoint @ SX0 @ SX1 )
                | ( in @ ( sK24_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)],[1326]) ).

thf(1410,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)],[1300]) ).

thf(1411,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)],[1319]) ).

thf(1412,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)],[1297]) ).

thf(1413,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)],[1315]) ).

thf(1414,plain,
    ( ( ~ ( ~ ! [SX0: $i,SX1: $i] :
                ( ( disjoint @ SX0 @ SX1 )
                | ~ ( ~ ( in @ ( sK25_C @ SX1 @ SX0 ) @ SX0 )
                    | ~ ( in @ ( sK25_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)],[1320]) ).

thf(1415,plain,
    ( ( ! [SX0: $i] :
          ~ ( ~ ! [SX1: $i,SX2: $i] :
                  ( ~ ( ~ ( ! [SX3: $i,SX4: $i] :
                              ( ~ ( in @ SX3 @ SX0 )
                              | ~ ( in @ SX4 @ SX1 )
                              | ( ( sK16_D @ SX2 @ SX1 @ SX0 )
                               != ( ordered_pair @ SX3 @ SX4 ) ) )
                          | ~ ( in @ ( sK16_D @ SX2 @ SX1 @ SX0 ) @ SX2 ) )
                      | ~ ( ~ ( ~ ~ ( ~ ( in @ ( sK17_SY205 @ SX2 @ SX1 @ SX0 ) @ SX0 )
                                    | ~ ( in @ ( sK18_SY207 @ SX2 @ SX1 @ SX0 ) @ SX1 ) )
                              | ( ( sK16_D @ SX2 @ SX1 @ SX0 )
                               != ( ordered_pair @ ( sK17_SY205 @ SX2 @ SX1 @ SX0 ) @ ( sK18_SY207 @ SX2 @ SX1 @ SX0 ) ) ) )
                          | ( in @ ( sK16_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 @ ( sK14_E @ SX3 @ SX2 @ SX1 @ SX0 ) @ SX0 )
                                      | ~ ( in @ ( sK15_SY202 @ SX3 @ SX2 @ SX1 @ SX0 ) @ SX1 ) )
                                | ( SX3
                                 != ( ordered_pair @ ( sK14_E @ SX3 @ SX2 @ SX1 @ SX0 ) @ ( sK15_SY202 @ SX3 @ SX2 @ SX1 @ SX0 ) ) ) ) ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[1350]) ).

thf(1416,plain,
    ! [SV260: $i] :
      ( ( ( ( singleton @ SV260 )
         != empty_set ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1293]) ).

thf(1417,plain,
    ! [SV261: $i] :
      ( ( ! [SY457: $i] :
            ( ~ ( in @ SV261 @ SY457 )
            | ( ( set_union2 @ ( singleton @ SV261 ) @ SY457 )
              = SY457 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1294]) ).

thf(1418,plain,
    ! [SV262: $i] :
      ( ( ! [SY458: $i] :
            ( ~ ( disjoint @ ( singleton @ SV262 ) @ SY458 )
            | ~ ( in @ SV262 @ SY458 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1295]) ).

thf(1419,plain,
    ! [SV263: $i] :
      ( ( ! [SY459: $i] :
            ( ( in @ SV263 @ SY459 )
            | ( disjoint @ ( singleton @ SV263 ) @ SY459 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1296]) ).

thf(1420,plain,
    ! [SV264: $i] :
      ( ( ! [SY460: $i] :
            ( ~ ( subset @ SV264 @ SY460 )
            | ! [SY461: $i] :
                ( ( in @ SY461 @ SV264 )
                | ( subset @ SV264 @ ( set_difference @ SY460 @ ( singleton @ SY461 ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1299]) ).

thf(1421,plain,
    ! [SV265: $i] :
      ( ( ! [SY462: $i] :
            ( ~ ( in @ SV265 @ SY462 )
            | ( subset @ SV265 @ ( union @ SY462 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1301]) ).

thf(1422,plain,
    ! [SV266: $i] :
      ( ( ! [SY463: $i,SY464: $i,SY465: $i] :
            ( ( SV266 = SY465 )
            | ( SV266 = SY464 )
            | ( ( unordered_pair @ SV266 @ SY463 )
             != ( unordered_pair @ SY464 @ SY465 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1303]) ).

thf(1423,plain,
    ! [SV267: $i] :
      ( ( ! [SY466: $i] :
            ( ~ ( subset @ SV267 @ SY466 )
            | ( ( set_union2 @ SV267 @ SY466 )
              = SY466 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1304]) ).

thf(1424,plain,
    ! [SV268: $i] :
      ( ( ! [SY467: $i] : ( subset @ ( set_intersection2 @ SV268 @ SY467 ) @ SV268 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1305]) ).

thf(1425,plain,
    ! [SV269: $i] :
      ( ( ! [SY468: $i,SY469: $i] :
            ( ~ ( subset @ SV269 @ SY468 )
            | ~ ( subset @ SV269 @ SY469 )
            | ( subset @ SV269 @ ( set_intersection2 @ SY468 @ SY469 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1306]) ).

thf(1426,plain,
    ! [SV270: $i] :
      ( ( ! [SY470: $i,SY471: $i] :
            ( ~ ( subset @ SV270 @ SY470 )
            | ~ ( subset @ SY470 @ SY471 )
            | ( subset @ SV270 @ SY471 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1307]) ).

thf(1427,plain,
    ! [SV271: $i] :
      ( ( ! [SY472: $i] :
            ( ~ ( subset @ SV271 @ SY472 )
            | ! [SY473: $i] : ( subset @ ( set_intersection2 @ SV271 @ SY473 ) @ ( set_intersection2 @ SY472 @ SY473 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1309]) ).

thf(1428,plain,
    ! [SV272: $i] :
      ( ( ! [SY474: $i] :
            ( ~ ( subset @ SV272 @ SY474 )
            | ( ( set_intersection2 @ SV272 @ SY474 )
              = SV272 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1310]) ).

thf(1429,plain,
    ! [SV273: $i] :
      ( ( subset @ empty_set @ SV273 )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1311]) ).

thf(1430,plain,
    ! [SV274: $i] :
      ( ( ! [SY475: $i] :
            ( ~ ( subset @ SV274 @ SY475 )
            | ! [SY476: $i] : ( subset @ ( set_difference @ SV274 @ SY476 ) @ ( set_difference @ SY475 @ SY476 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1312]) ).

thf(1431,plain,
    ! [SV275: $i] :
      ( ( ! [SY477: $i] : ( subset @ ( set_difference @ SV275 @ SY477 ) @ SV275 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1314]) ).

thf(1432,plain,
    ! [SV276: $i] :
      ( ( ! [SY478: $i] :
            ( ( set_union2 @ SV276 @ ( set_difference @ SY478 @ SV276 ) )
            = ( set_union2 @ SV276 @ SY478 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1318]) ).

thf(1433,plain,
    ! [SV277: $i] :
      ( ( ~ ( subset @ SV277 @ empty_set )
        | ( SV277 = empty_set ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1321]) ).

thf(1434,plain,
    ! [SV278: $i] :
      ( ( ! [SY479: $i] :
            ( ( set_difference @ ( set_union2 @ SV278 @ SY479 ) @ SY479 )
            = ( set_difference @ SV278 @ SY479 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1322]) ).

thf(1435,plain,
    ! [SV279: $i] :
      ( ( ! [SY480: $i] :
            ( ~ ( subset @ SV279 @ SY480 )
            | ( SY480
              = ( set_union2 @ SV279 @ ( set_difference @ SY480 @ SV279 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1323]) ).

thf(1436,plain,
    ! [SV280: $i] :
      ( ( ! [SY481: $i] :
            ( ~ ( in @ SV280 @ SY481 )
            | ( ( set_union2 @ ( singleton @ SV280 ) @ SY481 )
              = SY481 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1324]) ).

thf(1437,plain,
    ! [SV281: $i] :
      ( ( ! [SY482: $i] :
            ( ( set_difference @ SV281 @ ( set_difference @ SV281 @ SY482 ) )
            = ( set_intersection2 @ SV281 @ SY482 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1325]) ).

thf(1438,plain,
    ! [SV282: $i] :
      ( ( ! [SY483: $i] :
            ( ~ ( proper_subset @ SY483 @ SV282 )
            | ~ ( subset @ SV282 @ SY483 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1327]) ).

thf(1439,plain,
    ! [SV283: $i] :
      ( ( ! [SY484: $i,SY485: $i] :
            ( ~ ( disjoint @ SY484 @ SY485 )
            | ~ ( subset @ SV283 @ SY484 )
            | ( disjoint @ SV283 @ SY485 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1328]) ).

thf(1440,plain,
    ! [SV284: $i] :
      ( ( ( unordered_pair @ SV284 @ SV284 )
        = ( singleton @ SV284 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1330]) ).

thf(1441,plain,
    ! [SV285: $i] :
      ( ( ! [SY486: $i] :
            ( ~ ( subset @ ( singleton @ SV285 ) @ ( singleton @ SY486 ) )
            | ( SV285 = SY486 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1331]) ).

thf(1442,plain,
    ! [SV286: $i] :
      ( ( ! [SY487: $i] : ( subset @ SV286 @ ( set_union2 @ SV286 @ SY487 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1332]) ).

thf(1443,plain,
    ! [SV287: $i] :
      ( ( ! [SY488: $i,SY489: $i] :
            ( ~ ( subset @ SV287 @ SY488 )
            | ~ ( subset @ SY489 @ SY488 )
            | ( subset @ ( set_union2 @ SV287 @ SY489 ) @ SY488 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1334]) ).

thf(1444,plain,
    ! [SV288: $i] :
      ( ( ! [SY490: $i] :
            ( ! [SY491: $i] :
                ( ( singleton @ SV288 )
               != ( unordered_pair @ SY490 @ SY491 ) )
            | ( SV288 = SY490 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1335]) ).

thf(1445,plain,
    ! [SV289: $i] :
      ( ( ! [SY492: $i] :
            ( ~ ( in @ SV289 @ SY492 )
            | ( subset @ SV289 @ ( union @ SY492 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1336]) ).

thf(1446,plain,
    ! [SV290: $i] :
      ( ( ( union @ ( powerset @ SV290 ) )
        = SV290 )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1337]) ).

thf(1447,plain,
    ! [SV291: $i] :
      ( ( ! [SY493: $i,SY494: $i] :
            ( ( ( singleton @ SV291 )
             != ( unordered_pair @ SY493 @ SY494 ) )
            | ( SY493 = SY494 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1338]) ).

thf(1448,plain,
    ! [SV292: $i] :
      ( ( ! [SY495: $i] :
            ( ~ ( in @ SV292 @ SY495 )
            | ~ ( in @ SY495 @ SV292 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1339]) ).

thf(1449,plain,
    ! [SV293: $i] :
      ( ( ! [SY496: $i] :
            ( ~ ( proper_subset @ SV293 @ SY496 )
            | ~ ( proper_subset @ SY496 @ SV293 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1340]) ).

thf(1450,plain,
    ! [SV294: $i] :
      ( ( ! [SY497: $i] :
            ( ( unordered_pair @ SV294 @ SY497 )
            = ( unordered_pair @ SY497 @ SV294 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1341]) ).

thf(1451,plain,
    ! [SV295: $i] :
      ( ( ! [SY498: $i] :
            ( ( set_union2 @ SV295 @ SY498 )
            = ( set_union2 @ SY498 @ SV295 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1342]) ).

thf(1452,plain,
    ! [SV296: $i] :
      ( ( ! [SY499: $i] :
            ( ( set_intersection2 @ SV296 @ SY499 )
            = ( set_intersection2 @ SY499 @ SV296 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1343]) ).

thf(1453,plain,
    ! [SV297: $i] :
      ( ( ! [SY500: $i] :
            ( ( ordered_pair @ SV297 @ SY500 )
            = ( unordered_pair @ ( unordered_pair @ SV297 @ SY500 ) @ ( singleton @ SV297 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1355]) ).

thf(1454,plain,
    ! [SV298: $i] :
      ( ( ! [SY501: $i] :
            ~ ( empty @ ( ordered_pair @ SV298 @ SY501 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1369]) ).

thf(1455,plain,
    ! [SV299: $i] :
      ( ( ( empty @ SV299 )
        | ! [SY502: $i] :
            ~ ( empty @ ( set_union2 @ SV299 @ SY502 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1370]) ).

thf(1456,plain,
    ! [SV300: $i] :
      ( ( ( empty @ SV300 )
        | ! [SY503: $i] :
            ~ ( empty @ ( set_union2 @ SY503 @ SV300 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1371]) ).

thf(1457,plain,
    ! [SV301: $i] :
      ( ( ( set_union2 @ SV301 @ SV301 )
        = SV301 )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1372]) ).

thf(1458,plain,
    ! [SV302: $i] :
      ( ( ( set_intersection2 @ SV302 @ SV302 )
        = SV302 )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1373]) ).

thf(1459,plain,
    ! [SV303: $i] :
      ( ( ~ ( proper_subset @ SV303 @ SV303 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1374]) ).

thf(1460,plain,
    ( ( empty @ sK6_A )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[1376]) ).

thf(1461,plain,
    ! [SV304: $i] :
      ( ( subset @ SV304 @ SV304 )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1377]) ).

thf(1462,plain,
    ! [SV305: $i] :
      ( ( ! [SY504: $i] :
            ( ~ ( disjoint @ SV305 @ SY504 )
            | ( disjoint @ SY504 @ SV305 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1378]) ).

thf(1463,plain,
    ! [SV306: $i] :
      ( ( ( set_union2 @ SV306 @ empty_set )
        = SV306 )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1379]) ).

thf(1464,plain,
    ! [SV307: $i] :
      ( ( ( set_intersection2 @ SV307 @ empty_set )
        = empty_set )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1380]) ).

thf(1465,plain,
    ! [SV308: $i] :
      ( ( ( set_difference @ SV308 @ empty_set )
        = SV308 )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1382]) ).

thf(1466,plain,
    ! [SV309: $i] :
      ( ( ( set_difference @ empty_set @ SV309 )
        = empty_set )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1383]) ).

thf(1467,plain,
    ! [SV310: $i] :
      ( ( ~ ( empty @ SV310 )
        | ( SV310 = empty_set ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1384]) ).

thf(1468,plain,
    ! [SV311: $i] :
      ( ( ! [SY505: $i] :
            ( ~ ( empty @ SY505 )
            | ~ ( in @ SV311 @ SY505 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1385]) ).

thf(1469,plain,
    ! [SV312: $i] :
      ( ( ! [SY506: $i] :
            ( ( SV312 = SY506 )
            | ~ ( empty @ SV312 )
            | ~ ( empty @ SY506 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1386]) ).

thf(1470,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( ~ ( ! [SX2: $i] :
                        ( ~ ( in @ ( sK10_C @ SX1 @ SX0 ) @ SX2 )
                        | ~ ( in @ SX2 @ SX0 ) )
                    | ~ ( in @ ( sK10_C @ SX1 @ SX0 ) @ SX1 ) )
                | ~ ( ~ ( ~ ( in @ ( sK10_C @ SX1 @ SX0 ) @ ( sK11_SY201 @ SX1 @ SX0 ) )
                        | ~ ( in @ ( sK11_SY201 @ SX1 @ SX0 ) @ SX0 ) )
                    | ( in @ ( sK10_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 @ ( sK9_D @ SX2 @ SX1 @ SX0 ) )
                          | ~ ( in @ ( sK9_D @ SX2 @ SX1 @ SX0 ) @ SX0 ) ) ) ) ) )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[1388]) ).

thf(1471,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( ( set_difference @ SX0 @ ( singleton @ SX1 ) )
             != SX0 )
            | ~ ( in @ SX1 @ SX0 ) )
      | ~ ! [SX0: $i,SX1: $i] :
            ( ( in @ SX1 @ SX0 )
            | ( ( set_difference @ SX0 @ ( singleton @ SX1 ) )
              = SX0 ) ) )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[1389]) ).

thf(1472,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( ~ ( in @ ( sK13_C @ SX1 @ SX0 ) @ SX0 )
                | ~ ~ ( in @ ( sK13_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)],[1390]) ).

thf(1473,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( ~ ( ( ( sK23_C @ SX1 @ SX0 )
                     != SX0 )
                    | ~ ( in @ ( sK23_C @ SX1 @ SX0 ) @ SX1 ) )
                | ~ ( ( ( sK23_C @ SX1 @ SX0 )
                      = SX0 )
                    | ( in @ ( sK23_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)],[1391]) ).

thf(1474,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)],[1392]) ).

thf(1475,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)],[1393]) ).

thf(1476,plain,
    ! [SV313: $i] :
      ( ( ! [SY507: $i] :
            ~ ( ~ ! [SY508: $i,SY509: $i] :
                    ( ~ ( in @ SV313 @ SY508 )
                    | ~ ( in @ SY507 @ SY509 )
                    | ( in @ ( ordered_pair @ SV313 @ SY507 ) @ ( cartesian_product2 @ SY508 @ SY509 ) ) )
              | ~ ~ ( ~ ! [SY510: $i] :
                          ( ! [SY511: $i] :
                              ~ ( in @ ( ordered_pair @ SV313 @ SY507 ) @ ( cartesian_product2 @ SY510 @ SY511 ) )
                          | ( in @ SV313 @ SY510 ) )
                    | ~ ! [SY512: $i,SY513: $i] :
                          ( ~ ( in @ ( ordered_pair @ SV313 @ SY507 ) @ ( cartesian_product2 @ SY512 @ SY513 ) )
                          | ( in @ SY507 @ SY513 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1394]) ).

thf(1477,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)],[1395]) ).

thf(1478,plain,
    ! [SV314: $i] :
      ( ( ~ ( ~ ! [SY514: $i,SY515: $i] :
                  ( ~ ( ~ ( ~ ( in @ ( sK12_D @ SY515 @ SY514 @ SV314 ) @ SV314 )
                          | ~ ( in @ ( sK12_D @ SY515 @ SY514 @ SV314 ) @ SY514 )
                          | ~ ( in @ ( sK12_D @ SY515 @ SY514 @ SV314 ) @ SY515 ) )
                      | ~ ~ ( ~ ( ( in @ ( sK12_D @ SY515 @ SY514 @ SV314 ) @ SV314 )
                                | ( in @ ( sK12_D @ SY515 @ SY514 @ SV314 ) @ SY515 ) )
                            | ~ ( ( in @ ( sK12_D @ SY515 @ SY514 @ SV314 ) @ SY514 )
                                | ( in @ ( sK12_D @ SY515 @ SY514 @ SV314 ) @ SY515 ) ) ) )
                  | ( SY515
                    = ( set_intersection2 @ SV314 @ SY514 ) ) )
            | ~ ! [SY516: $i,SY517: $i] :
                  ( ( SY517
                   != ( set_intersection2 @ SV314 @ SY516 ) )
                  | ~ ( ~ ! [SY518: $i] :
                            ( ~ ( in @ SY518 @ SV314 )
                            | ~ ( in @ SY518 @ SY516 )
                            | ( in @ SY518 @ SY517 ) )
                      | ~ ~ ( ~ ! [SY519: $i] :
                                  ( ~ ( in @ SY519 @ SY517 )
                                  | ( in @ SY519 @ SV314 ) )
                            | ~ ! [SX3: $i] :
                                  ( ~ ( in @ SX3 @ SY517 )
                                  | ( in @ SX3 @ SY516 ) ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1396]) ).

thf(1479,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( ~ ( ~ ( in @ ( sK21_C @ SX1 @ SX0 ) @ SX1 )
                    | ~ ( subset @ ( sK21_C @ SX1 @ SX0 ) @ SX0 ) )
                | ~ ( ( in @ ( sK21_C @ SX1 @ SX0 ) @ SX1 )
                    | ( subset @ ( sK21_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)],[1397]) ).

thf(1480,plain,
    ! [SV315: $i] :
      ( ( ! [SY521: $i] :
            ( ~ ( ~ ( ~ ( in @ ( sK5_C @ SY521 @ SV315 ) @ SV315 )
                    | ~ ( in @ ( sK5_C @ SY521 @ SV315 ) @ SY521 ) )
                | ~ ( ( in @ ( sK5_C @ SY521 @ SV315 ) @ SV315 )
                    | ( in @ ( sK5_C @ SY521 @ SV315 ) @ SY521 ) ) )
            | ( SV315 = SY521 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1398]) ).

thf(1481,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)],[1399]) ).

thf(1482,plain,
    ! [SV316: $i] :
      ( ( ! [SY522: $i] :
            ~ ( ~ ! [SY523: $i] :
                    ( ! [SY524: $i] :
                        ( ( ordered_pair @ SV316 @ SY522 )
                       != ( ordered_pair @ SY523 @ SY524 ) )
                    | ( SV316 = SY523 ) )
              | ~ ! [SY525: $i,SY526: $i] :
                    ( ( ( ordered_pair @ SV316 @ SY522 )
                     != ( ordered_pair @ SY525 @ SY526 ) )
                    | ( SY522 = SY526 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1400]) ).

thf(1483,plain,
    ! [SV317: $i] :
      ( ( ~ ( ~ ! [SY527: $i,SY528: $i] :
                  ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK19_D @ SY528 @ SY527 @ SV317 ) @ SY528 )
                                | ~ ( in @ ( sK19_D @ SY528 @ SY527 @ SV317 ) @ SV317 ) )
                            | ~ ( ~ ( in @ ( sK19_D @ SY528 @ SY527 @ SV317 ) @ SY528 )
                                | ~ ( in @ ( sK19_D @ SY528 @ SY527 @ SV317 ) @ SY527 ) ) )
                      | ~ ( ( in @ ( sK19_D @ SY528 @ SY527 @ SV317 ) @ SY528 )
                          | ( in @ ( sK19_D @ SY528 @ SY527 @ SV317 ) @ SV317 )
                          | ( in @ ( sK19_D @ SY528 @ SY527 @ SV317 ) @ SY527 ) ) )
                  | ( SY528
                    = ( set_union2 @ SV317 @ SY527 ) ) )
            | ~ ! [SY529: $i,SY530: $i] :
                  ( ( SY530
                   != ( set_union2 @ SV317 @ SY529 ) )
                  | ~ ( ~ ! [SY531: $i] :
                            ( ~ ( in @ SY531 @ SY530 )
                            | ( in @ SY531 @ SV317 )
                            | ( in @ SY531 @ SY529 ) )
                      | ~ ~ ( ~ ! [SY532: $i] :
                                  ( ~ ( in @ SY532 @ SV317 )
                                  | ( in @ SY532 @ SY530 ) )
                            | ~ ! [SX3: $i] :
                                  ( ~ ( in @ SX3 @ SY529 )
                                  | ( in @ SX3 @ SY530 ) ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1401]) ).

thf(1484,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)],[1402]) ).

thf(1485,plain,
    ! [SV318: $i] :
      ( ( ~ ( ~ ! [SY534: $i,SY535: $i] :
                  ( ~ ( in @ SV318 @ SY535 )
                  | ~ ( in @ SY534 @ SY535 )
                  | ( subset @ ( unordered_pair @ SV318 @ SY534 ) @ SY535 ) )
            | ~ ~ ( ~ ! [SY536: $i,SY537: $i] :
                        ( ~ ( subset @ ( unordered_pair @ SV318 @ SY536 ) @ SY537 )
                        | ( in @ SV318 @ SY537 ) )
                  | ~ ! [SY538: $i,SY539: $i] :
                        ( ~ ( subset @ ( unordered_pair @ SV318 @ SY538 ) @ SY539 )
                        | ( in @ SY538 @ SY539 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1403]) ).

thf(1486,plain,
    ! [SV319: $i] :
      ( ( ~ ( ~ ! [SY540: $i,SY541: $i] :
                  ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK20_D @ SY541 @ SY540 @ SV319 ) @ SY541 )
                                | ( ( sK20_D @ SY541 @ SY540 @ SV319 )
                                 != SV319 ) )
                            | ~ ( ~ ( in @ ( sK20_D @ SY541 @ SY540 @ SV319 ) @ SY541 )
                                | ( ( sK20_D @ SY541 @ SY540 @ SV319 )
                                 != SY540 ) ) )
                      | ~ ( ( in @ ( sK20_D @ SY541 @ SY540 @ SV319 ) @ SY541 )
                          | ( ( sK20_D @ SY541 @ SY540 @ SV319 )
                            = SV319 )
                          | ( ( sK20_D @ SY541 @ SY540 @ SV319 )
                            = SY540 ) ) )
                  | ( SY541
                    = ( unordered_pair @ SV319 @ SY540 ) ) )
            | ~ ! [SY542: $i,SY543: $i] :
                  ( ( SY543
                   != ( unordered_pair @ SV319 @ SY542 ) )
                  | ~ ( ~ ! [SY544: $i] :
                            ( ~ ( in @ SY544 @ SY543 )
                            | ( SY544 = SV319 )
                            | ( SY544 = SY542 ) )
                      | ~ ~ ( ~ ! [SY545: $i] :
                                  ( ( SY545 != SV319 )
                                  | ( in @ SY545 @ SY543 ) )
                            | ~ ! [SX3: $i] :
                                  ( ( SX3 != SY542 )
                                  | ( in @ SX3 @ SY543 ) ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1404]) ).

thf(1487,plain,
    ( ( ~ ! [SX0: $i] :
            ( ( in @ ( sK22_B @ SX0 ) @ SX0 )
            | ( SX0 = empty_set ) )
      | ~ ! [SX0: $i] :
            ( ( SX0 != empty_set )
            | ! [SX1: $i] :
                ~ ( in @ SX1 @ SX0 ) ) )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[1405]) ).

thf(1488,plain,
    ( ( ~ ~ ( ~ ( in @ sK1_A @ sK3_SY197 )
            | ~ ( in @ sK2_SY194 @ sK4_SY199 ) )
      | ~ ~ ( in @ ( ordered_pair @ sK1_A @ sK2_SY194 ) @ ( cartesian_product2 @ sK3_SY197 @ sK4_SY199 ) ) )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[1406]) ).

thf(1489,plain,
    ! [SV320: $i] :
      ( ( ~ ( ~ ! [SY547: $i,SY548: $i] :
                  ( ~ ( ~ ( ~ ( in @ ( sK8_D @ SY548 @ SY547 @ SV320 ) @ SV320 )
                          | ( in @ ( sK8_D @ SY548 @ SY547 @ SV320 ) @ SY547 )
                          | ~ ( in @ ( sK8_D @ SY548 @ SY547 @ SV320 ) @ SY548 ) )
                      | ~ ~ ( ~ ( ( in @ ( sK8_D @ SY548 @ SY547 @ SV320 ) @ SV320 )
                                | ( in @ ( sK8_D @ SY548 @ SY547 @ SV320 ) @ SY548 ) )
                            | ~ ( ~ ( in @ ( sK8_D @ SY548 @ SY547 @ SV320 ) @ SY547 )
                                | ( in @ ( sK8_D @ SY548 @ SY547 @ SV320 ) @ SY548 ) ) ) )
                  | ( SY548
                    = ( set_difference @ SV320 @ SY547 ) ) )
            | ~ ! [SY549: $i,SY550: $i] :
                  ( ( SY550
                   != ( set_difference @ SV320 @ SY549 ) )
                  | ~ ( ~ ! [SY551: $i] :
                            ( ~ ( in @ SY551 @ SV320 )
                            | ( in @ SY551 @ SY549 )
                            | ( in @ SY551 @ SY550 ) )
                      | ~ ~ ( ~ ! [SY552: $i] :
                                  ( ~ ( in @ SY552 @ SY550 )
                                  | ( in @ SY552 @ SV320 ) )
                            | ~ ! [SX3: $i] :
                                  ( ~ ( in @ SX3 @ SY550 )
                                  | ~ ( in @ SX3 @ SY549 ) ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1407]) ).

thf(1490,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)],[1408]) ).

thf(1491,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( disjoint @ SX0 @ SX1 )
            | ( in @ ( sK24_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)],[1409]) ).

thf(1492,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)],[1410]) ).

thf(1493,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)],[1411]) ).

thf(1494,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)],[1412]) ).

thf(1495,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)],[1413]) ).

thf(1496,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( disjoint @ SX0 @ SX1 )
            | ~ ( ~ ( in @ ( sK25_C @ SX1 @ SX0 ) @ SX0 )
                | ~ ( in @ ( sK25_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)],[1414]) ).

thf(1497,plain,
    ! [SV321: $i] :
      ( ( ~ ( ~ ! [SY554: $i,SY555: $i] :
                  ( ~ ( ~ ( ! [SY556: $i,SY557: $i] :
                              ( ~ ( in @ SY556 @ SV321 )
                              | ~ ( in @ SY557 @ SY554 )
                              | ( ( sK16_D @ SY555 @ SY554 @ SV321 )
                               != ( ordered_pair @ SY556 @ SY557 ) ) )
                          | ~ ( in @ ( sK16_D @ SY555 @ SY554 @ SV321 ) @ SY555 ) )
                      | ~ ( ~ ( ~ ~ ( ~ ( in @ ( sK17_SY205 @ SY555 @ SY554 @ SV321 ) @ SV321 )
                                    | ~ ( in @ ( sK18_SY207 @ SY555 @ SY554 @ SV321 ) @ SY554 ) )
                              | ( ( sK16_D @ SY555 @ SY554 @ SV321 )
                               != ( ordered_pair @ ( sK17_SY205 @ SY555 @ SY554 @ SV321 ) @ ( sK18_SY207 @ SY555 @ SY554 @ SV321 ) ) ) )
                          | ( in @ ( sK16_D @ SY555 @ SY554 @ SV321 ) @ SY555 ) ) )
                  | ( SY555
                    = ( cartesian_product2 @ SV321 @ SY554 ) ) )
            | ~ ! [SY558: $i,SY559: $i] :
                  ( ( SY559
                   != ( cartesian_product2 @ SV321 @ SY558 ) )
                  | ~ ( ~ ! [SY560: $i] :
                            ( ! [SY561: $i,SY562: $i] :
                                ( ~ ( in @ SY561 @ SV321 )
                                | ~ ( in @ SY562 @ SY558 )
                                | ( SY560
                                 != ( ordered_pair @ SY561 @ SY562 ) ) )
                            | ( in @ SY560 @ SY559 ) )
                      | ~ ! [SY563: $i] :
                            ( ~ ( in @ SY563 @ SY559 )
                            | ~ ( ~ ~ ( ~ ( in @ ( sK14_E @ SY563 @ SY559 @ SY558 @ SV321 ) @ SV321 )
                                      | ~ ( in @ ( sK15_SY202 @ SY563 @ SY559 @ SY558 @ SV321 ) @ SY558 ) )
                                | ( SY563
                                 != ( ordered_pair @ ( sK14_E @ SY563 @ SY559 @ SY558 @ SV321 ) @ ( sK15_SY202 @ SY563 @ SY559 @ SY558 @ SV321 ) ) ) ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1415]) ).

thf(1498,plain,
    ! [SV260: $i] :
      ( ( ( singleton @ SV260 )
        = empty_set )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[1416]) ).

thf(1499,plain,
    ! [SV322: $i,SV261: $i] :
      ( ( ~ ( in @ SV261 @ SV322 )
        | ( ( set_union2 @ ( singleton @ SV261 ) @ SV322 )
          = SV322 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1417]) ).

thf(1500,plain,
    ! [SV323: $i,SV262: $i] :
      ( ( ~ ( disjoint @ ( singleton @ SV262 ) @ SV323 )
        | ~ ( in @ SV262 @ SV323 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1418]) ).

thf(1501,plain,
    ! [SV324: $i,SV263: $i] :
      ( ( ( in @ SV263 @ SV324 )
        | ( disjoint @ ( singleton @ SV263 ) @ SV324 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1419]) ).

thf(1502,plain,
    ! [SV325: $i,SV264: $i] :
      ( ( ~ ( subset @ SV264 @ SV325 )
        | ! [SY564: $i] :
            ( ( in @ SY564 @ SV264 )
            | ( subset @ SV264 @ ( set_difference @ SV325 @ ( singleton @ SY564 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1420]) ).

thf(1503,plain,
    ! [SV326: $i,SV265: $i] :
      ( ( ~ ( in @ SV265 @ SV326 )
        | ( subset @ SV265 @ ( union @ SV326 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1421]) ).

thf(1504,plain,
    ! [SV327: $i,SV266: $i] :
      ( ( ! [SY565: $i,SY566: $i] :
            ( ( SV266 = SY566 )
            | ( SV266 = SY565 )
            | ( ( unordered_pair @ SV266 @ SV327 )
             != ( unordered_pair @ SY565 @ SY566 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1422]) ).

thf(1505,plain,
    ! [SV328: $i,SV267: $i] :
      ( ( ~ ( subset @ SV267 @ SV328 )
        | ( ( set_union2 @ SV267 @ SV328 )
          = SV328 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1423]) ).

thf(1506,plain,
    ! [SV329: $i,SV268: $i] :
      ( ( subset @ ( set_intersection2 @ SV268 @ SV329 ) @ SV268 )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1424]) ).

thf(1507,plain,
    ! [SV330: $i,SV269: $i] :
      ( ( ! [SY567: $i] :
            ( ~ ( subset @ SV269 @ SV330 )
            | ~ ( subset @ SV269 @ SY567 )
            | ( subset @ SV269 @ ( set_intersection2 @ SV330 @ SY567 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1425]) ).

thf(1508,plain,
    ! [SV331: $i,SV270: $i] :
      ( ( ! [SY568: $i] :
            ( ~ ( subset @ SV270 @ SV331 )
            | ~ ( subset @ SV331 @ SY568 )
            | ( subset @ SV270 @ SY568 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1426]) ).

thf(1509,plain,
    ! [SV332: $i,SV271: $i] :
      ( ( ~ ( subset @ SV271 @ SV332 )
        | ! [SY569: $i] : ( subset @ ( set_intersection2 @ SV271 @ SY569 ) @ ( set_intersection2 @ SV332 @ SY569 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1427]) ).

thf(1510,plain,
    ! [SV333: $i,SV272: $i] :
      ( ( ~ ( subset @ SV272 @ SV333 )
        | ( ( set_intersection2 @ SV272 @ SV333 )
          = SV272 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1428]) ).

thf(1511,plain,
    ! [SV334: $i,SV274: $i] :
      ( ( ~ ( subset @ SV274 @ SV334 )
        | ! [SY570: $i] : ( subset @ ( set_difference @ SV274 @ SY570 ) @ ( set_difference @ SV334 @ SY570 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1430]) ).

thf(1512,plain,
    ! [SV335: $i,SV275: $i] :
      ( ( subset @ ( set_difference @ SV275 @ SV335 ) @ SV275 )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1431]) ).

thf(1513,plain,
    ! [SV336: $i,SV276: $i] :
      ( ( ( set_union2 @ SV276 @ ( set_difference @ SV336 @ SV276 ) )
        = ( set_union2 @ SV276 @ SV336 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1432]) ).

thf(1514,plain,
    ! [SV277: $i] :
      ( ( ( ~ ( subset @ SV277 @ empty_set ) )
        = $true )
      | ( ( SV277 = empty_set )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1433]) ).

thf(1515,plain,
    ! [SV337: $i,SV278: $i] :
      ( ( ( set_difference @ ( set_union2 @ SV278 @ SV337 ) @ SV337 )
        = ( set_difference @ SV278 @ SV337 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1434]) ).

thf(1516,plain,
    ! [SV338: $i,SV279: $i] :
      ( ( ~ ( subset @ SV279 @ SV338 )
        | ( SV338
          = ( set_union2 @ SV279 @ ( set_difference @ SV338 @ SV279 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1435]) ).

thf(1517,plain,
    ! [SV339: $i,SV280: $i] :
      ( ( ~ ( in @ SV280 @ SV339 )
        | ( ( set_union2 @ ( singleton @ SV280 ) @ SV339 )
          = SV339 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1436]) ).

thf(1518,plain,
    ! [SV340: $i,SV281: $i] :
      ( ( ( set_difference @ SV281 @ ( set_difference @ SV281 @ SV340 ) )
        = ( set_intersection2 @ SV281 @ SV340 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1437]) ).

thf(1519,plain,
    ! [SV282: $i,SV341: $i] :
      ( ( ~ ( proper_subset @ SV341 @ SV282 )
        | ~ ( subset @ SV282 @ SV341 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1438]) ).

thf(1520,plain,
    ! [SV283: $i,SV342: $i] :
      ( ( ! [SY571: $i] :
            ( ~ ( disjoint @ SV342 @ SY571 )
            | ~ ( subset @ SV283 @ SV342 )
            | ( disjoint @ SV283 @ SY571 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1439]) ).

thf(1521,plain,
    ! [SV343: $i,SV285: $i] :
      ( ( ~ ( subset @ ( singleton @ SV285 ) @ ( singleton @ SV343 ) )
        | ( SV285 = SV343 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1441]) ).

thf(1522,plain,
    ! [SV344: $i,SV286: $i] :
      ( ( subset @ SV286 @ ( set_union2 @ SV286 @ SV344 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1442]) ).

thf(1523,plain,
    ! [SV345: $i,SV287: $i] :
      ( ( ! [SY572: $i] :
            ( ~ ( subset @ SV287 @ SV345 )
            | ~ ( subset @ SY572 @ SV345 )
            | ( subset @ ( set_union2 @ SV287 @ SY572 ) @ SV345 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1443]) ).

thf(1524,plain,
    ! [SV346: $i,SV288: $i] :
      ( ( ! [SY573: $i] :
            ( ( singleton @ SV288 )
           != ( unordered_pair @ SV346 @ SY573 ) )
        | ( SV288 = SV346 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1444]) ).

thf(1525,plain,
    ! [SV347: $i,SV289: $i] :
      ( ( ~ ( in @ SV289 @ SV347 )
        | ( subset @ SV289 @ ( union @ SV347 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1445]) ).

thf(1526,plain,
    ! [SV348: $i,SV291: $i] :
      ( ( ! [SY574: $i] :
            ( ( ( singleton @ SV291 )
             != ( unordered_pair @ SV348 @ SY574 ) )
            | ( SV348 = SY574 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1447]) ).

thf(1527,plain,
    ! [SV349: $i,SV292: $i] :
      ( ( ~ ( in @ SV292 @ SV349 )
        | ~ ( in @ SV349 @ SV292 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1448]) ).

thf(1528,plain,
    ! [SV350: $i,SV293: $i] :
      ( ( ~ ( proper_subset @ SV293 @ SV350 )
        | ~ ( proper_subset @ SV350 @ SV293 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1449]) ).

thf(1529,plain,
    ! [SV351: $i,SV294: $i] :
      ( ( ( unordered_pair @ SV294 @ SV351 )
        = ( unordered_pair @ SV351 @ SV294 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1450]) ).

thf(1530,plain,
    ! [SV352: $i,SV295: $i] :
      ( ( ( set_union2 @ SV295 @ SV352 )
        = ( set_union2 @ SV352 @ SV295 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1451]) ).

thf(1531,plain,
    ! [SV353: $i,SV296: $i] :
      ( ( ( set_intersection2 @ SV296 @ SV353 )
        = ( set_intersection2 @ SV353 @ SV296 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1452]) ).

thf(1532,plain,
    ! [SV354: $i,SV297: $i] :
      ( ( ( ordered_pair @ SV297 @ SV354 )
        = ( unordered_pair @ ( unordered_pair @ SV297 @ SV354 ) @ ( singleton @ SV297 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1453]) ).

thf(1533,plain,
    ! [SV355: $i,SV298: $i] :
      ( ( ~ ( empty @ ( ordered_pair @ SV298 @ SV355 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1454]) ).

thf(1534,plain,
    ! [SV299: $i] :
      ( ( ( empty @ SV299 )
        = $true )
      | ( ( ! [SY502: $i] :
              ~ ( empty @ ( set_union2 @ SV299 @ SY502 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1455]) ).

thf(1535,plain,
    ! [SV300: $i] :
      ( ( ( empty @ SV300 )
        = $true )
      | ( ( ! [SY503: $i] :
              ~ ( empty @ ( set_union2 @ SY503 @ SV300 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1456]) ).

thf(1536,plain,
    ! [SV303: $i] :
      ( ( proper_subset @ SV303 @ SV303 )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[1459]) ).

thf(1537,plain,
    ! [SV356: $i,SV305: $i] :
      ( ( ~ ( disjoint @ SV305 @ SV356 )
        | ( disjoint @ SV356 @ SV305 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1462]) ).

thf(1538,plain,
    ! [SV310: $i] :
      ( ( ( ~ ( empty @ SV310 ) )
        = $true )
      | ( ( SV310 = empty_set )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1467]) ).

thf(1539,plain,
    ! [SV311: $i,SV357: $i] :
      ( ( ~ ( empty @ SV357 )
        | ~ ( in @ SV311 @ SV357 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1468]) ).

thf(1540,plain,
    ! [SV358: $i,SV312: $i] :
      ( ( ( SV312 = SV358 )
        | ~ ( empty @ SV312 )
        | ~ ( empty @ SV358 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1469]) ).

thf(1541,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( ~ ( ! [SX2: $i] :
                        ( ~ ( in @ ( sK10_C @ SX1 @ SX0 ) @ SX2 )
                        | ~ ( in @ SX2 @ SX0 ) )
                    | ~ ( in @ ( sK10_C @ SX1 @ SX0 ) @ SX1 ) )
                | ~ ( ~ ( ~ ( in @ ( sK10_C @ SX1 @ SX0 ) @ ( sK11_SY201 @ SX1 @ SX0 ) )
                        | ~ ( in @ ( sK11_SY201 @ SX1 @ SX0 ) @ SX0 ) )
                    | ( in @ ( sK10_C @ SX1 @ SX0 ) @ SX1 ) ) )
            | ( SX1
              = ( union @ SX0 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[1470]) ).

thf(1542,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 @ ( sK9_D @ SX2 @ SX1 @ SX0 ) )
                          | ~ ( in @ ( sK9_D @ SX2 @ SX1 @ SX0 ) @ SX0 ) ) ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[1470]) ).

thf(1543,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( ( set_difference @ SX0 @ ( singleton @ SX1 ) )
             != SX0 )
            | ~ ( in @ SX1 @ SX0 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[1471]) ).

thf(1544,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( in @ SX1 @ SX0 )
            | ( ( set_difference @ SX0 @ ( singleton @ SX1 ) )
              = SX0 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[1471]) ).

thf(1545,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( ~ ( in @ ( sK13_C @ SX1 @ SX0 ) @ SX0 )
                | ~ ~ ( in @ ( sK13_C @ SX1 @ SX0 ) @ SX1 ) )
            | ( subset @ SX0 @ SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[1472]) ).

thf(1546,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( subset @ SX0 @ SX1 )
            | ! [SX2: $i] :
                ( ~ ( in @ SX2 @ SX0 )
                | ( in @ SX2 @ SX1 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[1472]) ).

thf(1547,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( ~ ( ( ( sK23_C @ SX1 @ SX0 )
                     != SX0 )
                    | ~ ( in @ ( sK23_C @ SX1 @ SX0 ) @ SX1 ) )
                | ~ ( ( ( sK23_C @ SX1 @ SX0 )
                      = SX0 )
                    | ( in @ ( sK23_C @ SX1 @ SX0 ) @ SX1 ) ) )
            | ( SX1
              = ( singleton @ SX0 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[1473]) ).

thf(1548,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)],[1473]) ).

thf(1549,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( ( set_intersection2 @ SX0 @ SX1 )
             != empty_set )
            | ( disjoint @ SX0 @ SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[1474]) ).

thf(1550,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( disjoint @ SX0 @ SX1 )
            | ( ( set_intersection2 @ SX0 @ SX1 )
              = empty_set ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[1474]) ).

thf(1551,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( SX0 = SX1 )
            | ~ ( subset @ SX0 @ SX1 )
            | ( proper_subset @ SX0 @ SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[1475]) ).

thf(1552,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)],[1475]) ).

thf(1553,plain,
    ! [SV359: $i,SV313: $i] :
      ( ( ~ ( ~ ! [SY575: $i,SY576: $i] :
                  ( ~ ( in @ SV313 @ SY575 )
                  | ~ ( in @ SV359 @ SY576 )
                  | ( in @ ( ordered_pair @ SV313 @ SV359 ) @ ( cartesian_product2 @ SY575 @ SY576 ) ) )
            | ~ ~ ( ~ ! [SY577: $i] :
                        ( ! [SY578: $i] :
                            ~ ( in @ ( ordered_pair @ SV313 @ SV359 ) @ ( cartesian_product2 @ SY577 @ SY578 ) )
                        | ( in @ SV313 @ SY577 ) )
                  | ~ ! [SY579: $i,SY580: $i] :
                        ( ~ ( in @ ( ordered_pair @ SV313 @ SV359 ) @ ( cartesian_product2 @ SY579 @ SY580 ) )
                        | ( in @ SV359 @ SY580 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1476]) ).

thf(1554,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( in @ SX0 @ SX1 )
            | ( subset @ ( singleton @ SX0 ) @ SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[1477]) ).

thf(1555,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( subset @ ( singleton @ SX0 ) @ SX1 )
            | ( in @ SX0 @ SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[1477]) ).

thf(1556,plain,
    ! [SV314: $i] :
      ( ( ~ ! [SY514: $i,SY515: $i] :
              ( ~ ( ~ ( ~ ( in @ ( sK12_D @ SY515 @ SY514 @ SV314 ) @ SV314 )
                      | ~ ( in @ ( sK12_D @ SY515 @ SY514 @ SV314 ) @ SY514 )
                      | ~ ( in @ ( sK12_D @ SY515 @ SY514 @ SV314 ) @ SY515 ) )
                  | ~ ~ ( ~ ( ( in @ ( sK12_D @ SY515 @ SY514 @ SV314 ) @ SV314 )
                            | ( in @ ( sK12_D @ SY515 @ SY514 @ SV314 ) @ SY515 ) )
                        | ~ ( ( in @ ( sK12_D @ SY515 @ SY514 @ SV314 ) @ SY514 )
                            | ( in @ ( sK12_D @ SY515 @ SY514 @ SV314 ) @ SY515 ) ) ) )
              | ( SY515
                = ( set_intersection2 @ SV314 @ SY514 ) ) )
        | ~ ! [SY516: $i,SY517: $i] :
              ( ( SY517
               != ( set_intersection2 @ SV314 @ SY516 ) )
              | ~ ( ~ ! [SY518: $i] :
                        ( ~ ( in @ SY518 @ SV314 )
                        | ~ ( in @ SY518 @ SY516 )
                        | ( in @ SY518 @ SY517 ) )
                  | ~ ~ ( ~ ! [SY519: $i] :
                              ( ~ ( in @ SY519 @ SY517 )
                              | ( in @ SY519 @ SV314 ) )
                        | ~ ! [SX3: $i] :
                              ( ~ ( in @ SX3 @ SY517 )
                              | ( in @ SX3 @ SY516 ) ) ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[1478]) ).

thf(1557,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( ~ ( ~ ( in @ ( sK21_C @ SX1 @ SX0 ) @ SX1 )
                    | ~ ( subset @ ( sK21_C @ SX1 @ SX0 ) @ SX0 ) )
                | ~ ( ( in @ ( sK21_C @ SX1 @ SX0 ) @ SX1 )
                    | ( subset @ ( sK21_C @ SX1 @ SX0 ) @ SX0 ) ) )
            | ( SX1
              = ( powerset @ SX0 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[1479]) ).

thf(1558,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)],[1479]) ).

thf(1559,plain,
    ! [SV315: $i,SV360: $i] :
      ( ( ~ ( ~ ( ~ ( in @ ( sK5_C @ SV360 @ SV315 ) @ SV315 )
                | ~ ( in @ ( sK5_C @ SV360 @ SV315 ) @ SV360 ) )
            | ~ ( ( in @ ( sK5_C @ SV360 @ SV315 ) @ SV315 )
                | ( in @ ( sK5_C @ SV360 @ SV315 ) @ SV360 ) ) )
        | ( SV315 = SV360 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1480]) ).

thf(1560,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( ( set_difference @ SX0 @ SX1 )
             != SX0 )
            | ( disjoint @ SX0 @ SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[1481]) ).

thf(1561,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( disjoint @ SX0 @ SX1 )
            | ( ( set_difference @ SX0 @ SX1 )
              = SX0 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[1481]) ).

thf(1562,plain,
    ! [SV361: $i,SV316: $i] :
      ( ( ~ ( ~ ! [SY581: $i] :
                  ( ! [SY582: $i] :
                      ( ( ordered_pair @ SV316 @ SV361 )
                     != ( ordered_pair @ SY581 @ SY582 ) )
                  | ( SV316 = SY581 ) )
            | ~ ! [SY583: $i,SY584: $i] :
                  ( ( ( ordered_pair @ SV316 @ SV361 )
                   != ( ordered_pair @ SY583 @ SY584 ) )
                  | ( SV361 = SY584 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1482]) ).

thf(1563,plain,
    ! [SV317: $i] :
      ( ( ~ ! [SY527: $i,SY528: $i] :
              ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK19_D @ SY528 @ SY527 @ SV317 ) @ SY528 )
                            | ~ ( in @ ( sK19_D @ SY528 @ SY527 @ SV317 ) @ SV317 ) )
                        | ~ ( ~ ( in @ ( sK19_D @ SY528 @ SY527 @ SV317 ) @ SY528 )
                            | ~ ( in @ ( sK19_D @ SY528 @ SY527 @ SV317 ) @ SY527 ) ) )
                  | ~ ( ( in @ ( sK19_D @ SY528 @ SY527 @ SV317 ) @ SY528 )
                      | ( in @ ( sK19_D @ SY528 @ SY527 @ SV317 ) @ SV317 )
                      | ( in @ ( sK19_D @ SY528 @ SY527 @ SV317 ) @ SY527 ) ) )
              | ( SY528
                = ( set_union2 @ SV317 @ SY527 ) ) )
        | ~ ! [SY529: $i,SY530: $i] :
              ( ( SY530
               != ( set_union2 @ SV317 @ SY529 ) )
              | ~ ( ~ ! [SY531: $i] :
                        ( ~ ( in @ SY531 @ SY530 )
                        | ( in @ SY531 @ SV317 )
                        | ( in @ SY531 @ SY529 ) )
                  | ~ ~ ( ~ ! [SY532: $i] :
                              ( ~ ( in @ SY532 @ SV317 )
                              | ( in @ SY532 @ SY530 ) )
                        | ~ ! [SX3: $i] :
                              ( ~ ( in @ SX3 @ SY529 )
                              | ( in @ SX3 @ SY530 ) ) ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[1483]) ).

thf(1564,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( subset @ SX0 @ SX1 )
            | ~ ( subset @ SX1 @ SX0 )
            | ( SX0 = SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[1484]) ).

thf(1565,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)],[1484]) ).

thf(1566,plain,
    ! [SV318: $i] :
      ( ( ~ ! [SY534: $i,SY535: $i] :
              ( ~ ( in @ SV318 @ SY535 )
              | ~ ( in @ SY534 @ SY535 )
              | ( subset @ ( unordered_pair @ SV318 @ SY534 ) @ SY535 ) )
        | ~ ~ ( ~ ! [SY536: $i,SY537: $i] :
                    ( ~ ( subset @ ( unordered_pair @ SV318 @ SY536 ) @ SY537 )
                    | ( in @ SV318 @ SY537 ) )
              | ~ ! [SY538: $i,SY539: $i] :
                    ( ~ ( subset @ ( unordered_pair @ SV318 @ SY538 ) @ SY539 )
                    | ( in @ SY538 @ SY539 ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[1485]) ).

thf(1567,plain,
    ! [SV319: $i] :
      ( ( ~ ! [SY540: $i,SY541: $i] :
              ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK20_D @ SY541 @ SY540 @ SV319 ) @ SY541 )
                            | ( ( sK20_D @ SY541 @ SY540 @ SV319 )
                             != SV319 ) )
                        | ~ ( ~ ( in @ ( sK20_D @ SY541 @ SY540 @ SV319 ) @ SY541 )
                            | ( ( sK20_D @ SY541 @ SY540 @ SV319 )
                             != SY540 ) ) )
                  | ~ ( ( in @ ( sK20_D @ SY541 @ SY540 @ SV319 ) @ SY541 )
                      | ( ( sK20_D @ SY541 @ SY540 @ SV319 )
                        = SV319 )
                      | ( ( sK20_D @ SY541 @ SY540 @ SV319 )
                        = SY540 ) ) )
              | ( SY541
                = ( unordered_pair @ SV319 @ SY540 ) ) )
        | ~ ! [SY542: $i,SY543: $i] :
              ( ( SY543
               != ( unordered_pair @ SV319 @ SY542 ) )
              | ~ ( ~ ! [SY544: $i] :
                        ( ~ ( in @ SY544 @ SY543 )
                        | ( SY544 = SV319 )
                        | ( SY544 = SY542 ) )
                  | ~ ~ ( ~ ! [SY545: $i] :
                              ( ( SY545 != SV319 )
                              | ( in @ SY545 @ SY543 ) )
                        | ~ ! [SX3: $i] :
                              ( ( SX3 != SY542 )
                              | ( in @ SX3 @ SY543 ) ) ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[1486]) ).

thf(1568,plain,
    ( ( ~ ! [SX0: $i] :
            ( ( in @ ( sK22_B @ SX0 ) @ SX0 )
            | ( SX0 = empty_set ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[1487]) ).

thf(1569,plain,
    ( ( ~ ! [SX0: $i] :
            ( ( SX0 != empty_set )
            | ! [SX1: $i] :
                ~ ( in @ SX1 @ SX0 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[1487]) ).

thf(1570,plain,
    ( ( ~ ~ ( ~ ( in @ sK1_A @ sK3_SY197 )
            | ~ ( in @ sK2_SY194 @ sK4_SY199 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[1488]) ).

thf(1571,plain,
    ( ( ~ ~ ( in @ ( ordered_pair @ sK1_A @ sK2_SY194 ) @ ( cartesian_product2 @ sK3_SY197 @ sK4_SY199 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[1488]) ).

thf(1572,plain,
    ! [SV320: $i] :
      ( ( ~ ! [SY547: $i,SY548: $i] :
              ( ~ ( ~ ( ~ ( in @ ( sK8_D @ SY548 @ SY547 @ SV320 ) @ SV320 )
                      | ( in @ ( sK8_D @ SY548 @ SY547 @ SV320 ) @ SY547 )
                      | ~ ( in @ ( sK8_D @ SY548 @ SY547 @ SV320 ) @ SY548 ) )
                  | ~ ~ ( ~ ( ( in @ ( sK8_D @ SY548 @ SY547 @ SV320 ) @ SV320 )
                            | ( in @ ( sK8_D @ SY548 @ SY547 @ SV320 ) @ SY548 ) )
                        | ~ ( ~ ( in @ ( sK8_D @ SY548 @ SY547 @ SV320 ) @ SY547 )
                            | ( in @ ( sK8_D @ SY548 @ SY547 @ SV320 ) @ SY548 ) ) ) )
              | ( SY548
                = ( set_difference @ SV320 @ SY547 ) ) )
        | ~ ! [SY549: $i,SY550: $i] :
              ( ( SY550
               != ( set_difference @ SV320 @ SY549 ) )
              | ~ ( ~ ! [SY551: $i] :
                        ( ~ ( in @ SY551 @ SV320 )
                        | ( in @ SY551 @ SY549 )
                        | ( in @ SY551 @ SY550 ) )
                  | ~ ~ ( ~ ! [SY552: $i] :
                              ( ~ ( in @ SY552 @ SY550 )
                              | ( in @ SY552 @ SV320 ) )
                        | ~ ! [SX3: $i] :
                              ( ~ ( in @ SX3 @ SY550 )
                              | ~ ( in @ SX3 @ SY549 ) ) ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[1489]) ).

thf(1573,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( ( set_difference @ SX0 @ SX1 )
             != empty_set )
            | ( subset @ SX0 @ SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[1490]) ).

thf(1574,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( subset @ SX0 @ SX1 )
            | ( ( set_difference @ SX0 @ SX1 )
              = empty_set ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[1490]) ).

thf(1575,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( disjoint @ SX0 @ SX1 )
            | ( in @ ( sK24_C @ SX1 @ SX0 ) @ ( set_intersection2 @ SX0 @ SX1 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[1491]) ).

thf(1576,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ! [SX2: $i] :
                ~ ( in @ SX2 @ ( set_intersection2 @ SX0 @ SX1 ) )
            | ~ ( disjoint @ SX0 @ SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[1491]) ).

thf(1577,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( subset @ SX0 @ ( singleton @ SX1 ) )
            | ( SX0 = empty_set )
            | ( SX0
              = ( singleton @ SX1 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[1492]) ).

thf(1578,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)],[1492]) ).

thf(1579,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( subset @ SX0 @ ( singleton @ SX1 ) )
            | ( SX0 = empty_set )
            | ( SX0
              = ( singleton @ SX1 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[1493]) ).

thf(1580,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)],[1493]) ).

thf(1581,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( in @ SX0 @ SX1 )
            | ( subset @ ( singleton @ SX0 ) @ SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[1494]) ).

thf(1582,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( subset @ ( singleton @ SX0 ) @ SX1 )
            | ( in @ SX0 @ SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[1494]) ).

thf(1583,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( ( set_difference @ SX0 @ SX1 )
             != empty_set )
            | ( subset @ SX0 @ SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[1495]) ).

thf(1584,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( subset @ SX0 @ SX1 )
            | ( ( set_difference @ SX0 @ SX1 )
              = empty_set ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[1495]) ).

thf(1585,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( disjoint @ SX0 @ SX1 )
            | ~ ( ~ ( in @ ( sK25_C @ SX1 @ SX0 ) @ SX0 )
                | ~ ( in @ ( sK25_C @ SX1 @ SX0 ) @ SX1 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[1496]) ).

thf(1586,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ! [SX2: $i] :
                ( ~ ( in @ SX2 @ SX0 )
                | ~ ( in @ SX2 @ SX1 ) )
            | ~ ( disjoint @ SX0 @ SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[1496]) ).

thf(1587,plain,
    ! [SV321: $i] :
      ( ( ~ ! [SY554: $i,SY555: $i] :
              ( ~ ( ~ ( ! [SY556: $i,SY557: $i] :
                          ( ~ ( in @ SY556 @ SV321 )
                          | ~ ( in @ SY557 @ SY554 )
                          | ( ( sK16_D @ SY555 @ SY554 @ SV321 )
                           != ( ordered_pair @ SY556 @ SY557 ) ) )
                      | ~ ( in @ ( sK16_D @ SY555 @ SY554 @ SV321 ) @ SY555 ) )
                  | ~ ( ~ ( ~ ~ ( ~ ( in @ ( sK17_SY205 @ SY555 @ SY554 @ SV321 ) @ SV321 )
                                | ~ ( in @ ( sK18_SY207 @ SY555 @ SY554 @ SV321 ) @ SY554 ) )
                          | ( ( sK16_D @ SY555 @ SY554 @ SV321 )
                           != ( ordered_pair @ ( sK17_SY205 @ SY555 @ SY554 @ SV321 ) @ ( sK18_SY207 @ SY555 @ SY554 @ SV321 ) ) ) )
                      | ( in @ ( sK16_D @ SY555 @ SY554 @ SV321 ) @ SY555 ) ) )
              | ( SY555
                = ( cartesian_product2 @ SV321 @ SY554 ) ) )
        | ~ ! [SY558: $i,SY559: $i] :
              ( ( SY559
               != ( cartesian_product2 @ SV321 @ SY558 ) )
              | ~ ( ~ ! [SY560: $i] :
                        ( ! [SY561: $i,SY562: $i] :
                            ( ~ ( in @ SY561 @ SV321 )
                            | ~ ( in @ SY562 @ SY558 )
                            | ( SY560
                             != ( ordered_pair @ SY561 @ SY562 ) ) )
                        | ( in @ SY560 @ SY559 ) )
                  | ~ ! [SY563: $i] :
                        ( ~ ( in @ SY563 @ SY559 )
                        | ~ ( ~ ~ ( ~ ( in @ ( sK14_E @ SY563 @ SY559 @ SY558 @ SV321 ) @ SV321 )
                                  | ~ ( in @ ( sK15_SY202 @ SY563 @ SY559 @ SY558 @ SV321 ) @ SY558 ) )
                            | ( SY563
                             != ( ordered_pair @ ( sK14_E @ SY563 @ SY559 @ SY558 @ SV321 ) @ ( sK15_SY202 @ SY563 @ SY559 @ SY558 @ SV321 ) ) ) ) ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[1497]) ).

thf(1588,plain,
    ! [SV322: $i,SV261: $i] :
      ( ( ( ~ ( in @ SV261 @ SV322 ) )
        = $true )
      | ( ( ( set_union2 @ ( singleton @ SV261 ) @ SV322 )
          = SV322 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1499]) ).

thf(1589,plain,
    ! [SV323: $i,SV262: $i] :
      ( ( ( ~ ( disjoint @ ( singleton @ SV262 ) @ SV323 ) )
        = $true )
      | ( ( ~ ( in @ SV262 @ SV323 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1500]) ).

thf(1590,plain,
    ! [SV324: $i,SV263: $i] :
      ( ( ( in @ SV263 @ SV324 )
        = $true )
      | ( ( disjoint @ ( singleton @ SV263 ) @ SV324 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1501]) ).

thf(1591,plain,
    ! [SV325: $i,SV264: $i] :
      ( ( ( ~ ( subset @ SV264 @ SV325 ) )
        = $true )
      | ( ( ! [SY564: $i] :
              ( ( in @ SY564 @ SV264 )
              | ( subset @ SV264 @ ( set_difference @ SV325 @ ( singleton @ SY564 ) ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1502]) ).

thf(1592,plain,
    ! [SV326: $i,SV265: $i] :
      ( ( ( ~ ( in @ SV265 @ SV326 ) )
        = $true )
      | ( ( subset @ SV265 @ ( union @ SV326 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1503]) ).

thf(1593,plain,
    ! [SV327: $i,SV362: $i,SV266: $i] :
      ( ( ! [SY585: $i] :
            ( ( SV266 = SY585 )
            | ( SV266 = SV362 )
            | ( ( unordered_pair @ SV266 @ SV327 )
             != ( unordered_pair @ SV362 @ SY585 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1504]) ).

thf(1594,plain,
    ! [SV328: $i,SV267: $i] :
      ( ( ( ~ ( subset @ SV267 @ SV328 ) )
        = $true )
      | ( ( ( set_union2 @ SV267 @ SV328 )
          = SV328 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1505]) ).

thf(1595,plain,
    ! [SV363: $i,SV330: $i,SV269: $i] :
      ( ( ~ ( subset @ SV269 @ SV330 )
        | ~ ( subset @ SV269 @ SV363 )
        | ( subset @ SV269 @ ( set_intersection2 @ SV330 @ SV363 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1507]) ).

thf(1596,plain,
    ! [SV364: $i,SV331: $i,SV270: $i] :
      ( ( ~ ( subset @ SV270 @ SV331 )
        | ~ ( subset @ SV331 @ SV364 )
        | ( subset @ SV270 @ SV364 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1508]) ).

thf(1597,plain,
    ! [SV332: $i,SV271: $i] :
      ( ( ( ~ ( subset @ SV271 @ SV332 ) )
        = $true )
      | ( ( ! [SY569: $i] : ( subset @ ( set_intersection2 @ SV271 @ SY569 ) @ ( set_intersection2 @ SV332 @ SY569 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1509]) ).

thf(1598,plain,
    ! [SV333: $i,SV272: $i] :
      ( ( ( ~ ( subset @ SV272 @ SV333 ) )
        = $true )
      | ( ( ( set_intersection2 @ SV272 @ SV333 )
          = SV272 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1510]) ).

thf(1599,plain,
    ! [SV334: $i,SV274: $i] :
      ( ( ( ~ ( subset @ SV274 @ SV334 ) )
        = $true )
      | ( ( ! [SY570: $i] : ( subset @ ( set_difference @ SV274 @ SY570 ) @ ( set_difference @ SV334 @ SY570 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1511]) ).

thf(1600,plain,
    ! [SV277: $i] :
      ( ( ( subset @ SV277 @ empty_set )
        = $false )
      | ( ( SV277 = empty_set )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1514]) ).

thf(1601,plain,
    ! [SV338: $i,SV279: $i] :
      ( ( ( ~ ( subset @ SV279 @ SV338 ) )
        = $true )
      | ( ( SV338
          = ( set_union2 @ SV279 @ ( set_difference @ SV338 @ SV279 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1516]) ).

thf(1602,plain,
    ! [SV339: $i,SV280: $i] :
      ( ( ( ~ ( in @ SV280 @ SV339 ) )
        = $true )
      | ( ( ( set_union2 @ ( singleton @ SV280 ) @ SV339 )
          = SV339 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1517]) ).

thf(1603,plain,
    ! [SV282: $i,SV341: $i] :
      ( ( ( ~ ( proper_subset @ SV341 @ SV282 ) )
        = $true )
      | ( ( ~ ( subset @ SV282 @ SV341 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1519]) ).

thf(1604,plain,
    ! [SV283: $i,SV365: $i,SV342: $i] :
      ( ( ~ ( disjoint @ SV342 @ SV365 )
        | ~ ( subset @ SV283 @ SV342 )
        | ( disjoint @ SV283 @ SV365 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1520]) ).

thf(1605,plain,
    ! [SV343: $i,SV285: $i] :
      ( ( ( ~ ( subset @ ( singleton @ SV285 ) @ ( singleton @ SV343 ) ) )
        = $true )
      | ( ( SV285 = SV343 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1521]) ).

thf(1606,plain,
    ! [SV366: $i,SV345: $i,SV287: $i] :
      ( ( ~ ( subset @ SV287 @ SV345 )
        | ~ ( subset @ SV366 @ SV345 )
        | ( subset @ ( set_union2 @ SV287 @ SV366 ) @ SV345 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1523]) ).

thf(1607,plain,
    ! [SV346: $i,SV288: $i] :
      ( ( ( ! [SY573: $i] :
              ( ( singleton @ SV288 )
             != ( unordered_pair @ SV346 @ SY573 ) ) )
        = $true )
      | ( ( SV288 = SV346 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1524]) ).

thf(1608,plain,
    ! [SV347: $i,SV289: $i] :
      ( ( ( ~ ( in @ SV289 @ SV347 ) )
        = $true )
      | ( ( subset @ SV289 @ ( union @ SV347 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1525]) ).

thf(1609,plain,
    ! [SV367: $i,SV348: $i,SV291: $i] :
      ( ( ( ( singleton @ SV291 )
         != ( unordered_pair @ SV348 @ SV367 ) )
        | ( SV348 = SV367 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1526]) ).

thf(1610,plain,
    ! [SV349: $i,SV292: $i] :
      ( ( ( ~ ( in @ SV292 @ SV349 ) )
        = $true )
      | ( ( ~ ( in @ SV349 @ SV292 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1527]) ).

thf(1611,plain,
    ! [SV350: $i,SV293: $i] :
      ( ( ( ~ ( proper_subset @ SV293 @ SV350 ) )
        = $true )
      | ( ( ~ ( proper_subset @ SV350 @ SV293 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1528]) ).

thf(1612,plain,
    ! [SV355: $i,SV298: $i] :
      ( ( empty @ ( ordered_pair @ SV298 @ SV355 ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[1533]) ).

thf(1613,plain,
    ! [SV368: $i,SV299: $i] :
      ( ( ( ~ ( empty @ ( set_union2 @ SV299 @ SV368 ) ) )
        = $true )
      | ( ( empty @ SV299 )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[1534]) ).

thf(1614,plain,
    ! [SV300: $i,SV369: $i] :
      ( ( ( ~ ( empty @ ( set_union2 @ SV369 @ SV300 ) ) )
        = $true )
      | ( ( empty @ SV300 )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[1535]) ).

thf(1615,plain,
    ! [SV356: $i,SV305: $i] :
      ( ( ( ~ ( disjoint @ SV305 @ SV356 ) )
        = $true )
      | ( ( disjoint @ SV356 @ SV305 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1537]) ).

thf(1616,plain,
    ! [SV310: $i] :
      ( ( ( empty @ SV310 )
        = $false )
      | ( ( SV310 = empty_set )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1538]) ).

thf(1617,plain,
    ! [SV311: $i,SV357: $i] :
      ( ( ( ~ ( empty @ SV357 ) )
        = $true )
      | ( ( ~ ( in @ SV311 @ SV357 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1539]) ).

thf(1618,plain,
    ! [SV358: $i,SV312: $i] :
      ( ( ( ( SV312 = SV358 )
          | ~ ( empty @ SV312 ) )
        = $true )
      | ( ( ~ ( empty @ SV358 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1540]) ).

thf(1619,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( ~ ( ! [SX2: $i] :
                      ( ~ ( in @ ( sK10_C @ SX1 @ SX0 ) @ SX2 )
                      | ~ ( in @ SX2 @ SX0 ) )
                  | ~ ( in @ ( sK10_C @ SX1 @ SX0 ) @ SX1 ) )
              | ~ ( ~ ( ~ ( in @ ( sK10_C @ SX1 @ SX0 ) @ ( sK11_SY201 @ SX1 @ SX0 ) )
                      | ~ ( in @ ( sK11_SY201 @ SX1 @ SX0 ) @ SX0 ) )
                  | ( in @ ( sK10_C @ SX1 @ SX0 ) @ SX1 ) ) )
          | ( SX1
            = ( union @ SX0 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[1541]) ).

thf(1620,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 @ ( sK9_D @ SX2 @ SX1 @ SX0 ) )
                        | ~ ( in @ ( sK9_D @ SX2 @ SX1 @ SX0 ) @ SX0 ) ) ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[1542]) ).

thf(1621,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ( ( set_difference @ SX0 @ ( singleton @ SX1 ) )
           != SX0 )
          | ~ ( in @ SX1 @ SX0 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[1543]) ).

thf(1622,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ( in @ SX1 @ SX0 )
          | ( ( set_difference @ SX0 @ ( singleton @ SX1 ) )
            = SX0 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[1544]) ).

thf(1623,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( ~ ( in @ ( sK13_C @ SX1 @ SX0 ) @ SX0 )
              | ~ ~ ( in @ ( sK13_C @ SX1 @ SX0 ) @ SX1 ) )
          | ( subset @ SX0 @ SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[1545]) ).

thf(1624,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( subset @ SX0 @ SX1 )
          | ! [SX2: $i] :
              ( ~ ( in @ SX2 @ SX0 )
              | ( in @ SX2 @ SX1 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[1546]) ).

thf(1625,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( ~ ( ( ( sK23_C @ SX1 @ SX0 )
                   != SX0 )
                  | ~ ( in @ ( sK23_C @ SX1 @ SX0 ) @ SX1 ) )
              | ~ ( ( ( sK23_C @ SX1 @ SX0 )
                    = SX0 )
                  | ( in @ ( sK23_C @ SX1 @ SX0 ) @ SX1 ) ) )
          | ( SX1
            = ( singleton @ SX0 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[1547]) ).

thf(1626,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)],[1548]) ).

thf(1627,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ( ( set_intersection2 @ SX0 @ SX1 )
           != empty_set )
          | ( disjoint @ SX0 @ SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[1549]) ).

thf(1628,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( disjoint @ SX0 @ SX1 )
          | ( ( set_intersection2 @ SX0 @ SX1 )
            = empty_set ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[1550]) ).

thf(1629,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ( SX0 = SX1 )
          | ~ ( subset @ SX0 @ SX1 )
          | ( proper_subset @ SX0 @ SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[1551]) ).

thf(1630,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)],[1552]) ).

thf(1631,plain,
    ! [SV359: $i,SV313: $i] :
      ( ( ~ ! [SY575: $i,SY576: $i] :
              ( ~ ( in @ SV313 @ SY575 )
              | ~ ( in @ SV359 @ SY576 )
              | ( in @ ( ordered_pair @ SV313 @ SV359 ) @ ( cartesian_product2 @ SY575 @ SY576 ) ) )
        | ~ ~ ( ~ ! [SY577: $i] :
                    ( ! [SY578: $i] :
                        ~ ( in @ ( ordered_pair @ SV313 @ SV359 ) @ ( cartesian_product2 @ SY577 @ SY578 ) )
                    | ( in @ SV313 @ SY577 ) )
              | ~ ! [SY579: $i,SY580: $i] :
                    ( ~ ( in @ ( ordered_pair @ SV313 @ SV359 ) @ ( cartesian_product2 @ SY579 @ SY580 ) )
                    | ( in @ SV359 @ SY580 ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[1553]) ).

thf(1632,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( in @ SX0 @ SX1 )
          | ( subset @ ( singleton @ SX0 ) @ SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[1554]) ).

thf(1633,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( subset @ ( singleton @ SX0 ) @ SX1 )
          | ( in @ SX0 @ SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[1555]) ).

thf(1634,plain,
    ! [SV314: $i] :
      ( ( ~ ! [SY514: $i,SY515: $i] :
              ( ~ ( ~ ( ~ ( in @ ( sK12_D @ SY515 @ SY514 @ SV314 ) @ SV314 )
                      | ~ ( in @ ( sK12_D @ SY515 @ SY514 @ SV314 ) @ SY514 )
                      | ~ ( in @ ( sK12_D @ SY515 @ SY514 @ SV314 ) @ SY515 ) )
                  | ~ ~ ( ~ ( ( in @ ( sK12_D @ SY515 @ SY514 @ SV314 ) @ SV314 )
                            | ( in @ ( sK12_D @ SY515 @ SY514 @ SV314 ) @ SY515 ) )
                        | ~ ( ( in @ ( sK12_D @ SY515 @ SY514 @ SV314 ) @ SY514 )
                            | ( in @ ( sK12_D @ SY515 @ SY514 @ SV314 ) @ SY515 ) ) ) )
              | ( SY515
                = ( set_intersection2 @ SV314 @ SY514 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[1556]) ).

thf(1635,plain,
    ! [SV314: $i] :
      ( ( ~ ! [SY516: $i,SY517: $i] :
              ( ( SY517
               != ( set_intersection2 @ SV314 @ SY516 ) )
              | ~ ( ~ ! [SY518: $i] :
                        ( ~ ( in @ SY518 @ SV314 )
                        | ~ ( in @ SY518 @ SY516 )
                        | ( in @ SY518 @ SY517 ) )
                  | ~ ~ ( ~ ! [SY519: $i] :
                              ( ~ ( in @ SY519 @ SY517 )
                              | ( in @ SY519 @ SV314 ) )
                        | ~ ! [SX3: $i] :
                              ( ~ ( in @ SX3 @ SY517 )
                              | ( in @ SX3 @ SY516 ) ) ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[1556]) ).

thf(1636,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( ~ ( ~ ( in @ ( sK21_C @ SX1 @ SX0 ) @ SX1 )
                  | ~ ( subset @ ( sK21_C @ SX1 @ SX0 ) @ SX0 ) )
              | ~ ( ( in @ ( sK21_C @ SX1 @ SX0 ) @ SX1 )
                  | ( subset @ ( sK21_C @ SX1 @ SX0 ) @ SX0 ) ) )
          | ( SX1
            = ( powerset @ SX0 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[1557]) ).

thf(1637,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)],[1558]) ).

thf(1638,plain,
    ! [SV315: $i,SV360: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ ( sK5_C @ SV360 @ SV315 ) @ SV315 )
                  | ~ ( in @ ( sK5_C @ SV360 @ SV315 ) @ SV360 ) )
              | ~ ( ( in @ ( sK5_C @ SV360 @ SV315 ) @ SV315 )
                  | ( in @ ( sK5_C @ SV360 @ SV315 ) @ SV360 ) ) ) )
        = $true )
      | ( ( SV315 = SV360 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1559]) ).

thf(1639,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ( ( set_difference @ SX0 @ SX1 )
           != SX0 )
          | ( disjoint @ SX0 @ SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[1560]) ).

thf(1640,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( disjoint @ SX0 @ SX1 )
          | ( ( set_difference @ SX0 @ SX1 )
            = SX0 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[1561]) ).

thf(1641,plain,
    ! [SV361: $i,SV316: $i] :
      ( ( ~ ! [SY581: $i] :
              ( ! [SY582: $i] :
                  ( ( ordered_pair @ SV316 @ SV361 )
                 != ( ordered_pair @ SY581 @ SY582 ) )
              | ( SV316 = SY581 ) )
        | ~ ! [SY583: $i,SY584: $i] :
              ( ( ( ordered_pair @ SV316 @ SV361 )
               != ( ordered_pair @ SY583 @ SY584 ) )
              | ( SV361 = SY584 ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[1562]) ).

thf(1642,plain,
    ! [SV317: $i] :
      ( ( ~ ! [SY527: $i,SY528: $i] :
              ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK19_D @ SY528 @ SY527 @ SV317 ) @ SY528 )
                            | ~ ( in @ ( sK19_D @ SY528 @ SY527 @ SV317 ) @ SV317 ) )
                        | ~ ( ~ ( in @ ( sK19_D @ SY528 @ SY527 @ SV317 ) @ SY528 )
                            | ~ ( in @ ( sK19_D @ SY528 @ SY527 @ SV317 ) @ SY527 ) ) )
                  | ~ ( ( in @ ( sK19_D @ SY528 @ SY527 @ SV317 ) @ SY528 )
                      | ( in @ ( sK19_D @ SY528 @ SY527 @ SV317 ) @ SV317 )
                      | ( in @ ( sK19_D @ SY528 @ SY527 @ SV317 ) @ SY527 ) ) )
              | ( SY528
                = ( set_union2 @ SV317 @ SY527 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[1563]) ).

thf(1643,plain,
    ! [SV317: $i] :
      ( ( ~ ! [SY529: $i,SY530: $i] :
              ( ( SY530
               != ( set_union2 @ SV317 @ SY529 ) )
              | ~ ( ~ ! [SY531: $i] :
                        ( ~ ( in @ SY531 @ SY530 )
                        | ( in @ SY531 @ SV317 )
                        | ( in @ SY531 @ SY529 ) )
                  | ~ ~ ( ~ ! [SY532: $i] :
                              ( ~ ( in @ SY532 @ SV317 )
                              | ( in @ SY532 @ SY530 ) )
                        | ~ ! [SX3: $i] :
                              ( ~ ( in @ SX3 @ SY529 )
                              | ( in @ SX3 @ SY530 ) ) ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[1563]) ).

thf(1644,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( subset @ SX0 @ SX1 )
          | ~ ( subset @ SX1 @ SX0 )
          | ( SX0 = SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[1564]) ).

thf(1645,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)],[1565]) ).

thf(1646,plain,
    ! [SV318: $i] :
      ( ( ~ ! [SY534: $i,SY535: $i] :
              ( ~ ( in @ SV318 @ SY535 )
              | ~ ( in @ SY534 @ SY535 )
              | ( subset @ ( unordered_pair @ SV318 @ SY534 ) @ SY535 ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[1566]) ).

thf(1647,plain,
    ! [SV318: $i] :
      ( ( ~ ~ ( ~ ! [SY536: $i,SY537: $i] :
                    ( ~ ( subset @ ( unordered_pair @ SV318 @ SY536 ) @ SY537 )
                    | ( in @ SV318 @ SY537 ) )
              | ~ ! [SY538: $i,SY539: $i] :
                    ( ~ ( subset @ ( unordered_pair @ SV318 @ SY538 ) @ SY539 )
                    | ( in @ SY538 @ SY539 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[1566]) ).

thf(1648,plain,
    ! [SV319: $i] :
      ( ( ~ ! [SY540: $i,SY541: $i] :
              ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK20_D @ SY541 @ SY540 @ SV319 ) @ SY541 )
                            | ( ( sK20_D @ SY541 @ SY540 @ SV319 )
                             != SV319 ) )
                        | ~ ( ~ ( in @ ( sK20_D @ SY541 @ SY540 @ SV319 ) @ SY541 )
                            | ( ( sK20_D @ SY541 @ SY540 @ SV319 )
                             != SY540 ) ) )
                  | ~ ( ( in @ ( sK20_D @ SY541 @ SY540 @ SV319 ) @ SY541 )
                      | ( ( sK20_D @ SY541 @ SY540 @ SV319 )
                        = SV319 )
                      | ( ( sK20_D @ SY541 @ SY540 @ SV319 )
                        = SY540 ) ) )
              | ( SY541
                = ( unordered_pair @ SV319 @ SY540 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[1567]) ).

thf(1649,plain,
    ! [SV319: $i] :
      ( ( ~ ! [SY542: $i,SY543: $i] :
              ( ( SY543
               != ( unordered_pair @ SV319 @ SY542 ) )
              | ~ ( ~ ! [SY544: $i] :
                        ( ~ ( in @ SY544 @ SY543 )
                        | ( SY544 = SV319 )
                        | ( SY544 = SY542 ) )
                  | ~ ~ ( ~ ! [SY545: $i] :
                              ( ( SY545 != SV319 )
                              | ( in @ SY545 @ SY543 ) )
                        | ~ ! [SX3: $i] :
                              ( ( SX3 != SY542 )
                              | ( in @ SX3 @ SY543 ) ) ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[1567]) ).

thf(1650,plain,
    ( ( ! [SX0: $i] :
          ( ( in @ ( sK22_B @ SX0 ) @ SX0 )
          | ( SX0 = empty_set ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[1568]) ).

thf(1651,plain,
    ( ( ! [SX0: $i] :
          ( ( SX0 != empty_set )
          | ! [SX1: $i] :
              ~ ( in @ SX1 @ SX0 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[1569]) ).

thf(1652,plain,
    ( ( ~ ( ~ ( in @ sK1_A @ sK3_SY197 )
          | ~ ( in @ sK2_SY194 @ sK4_SY199 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[1570]) ).

thf(1653,plain,
    ( ( ~ ( in @ ( ordered_pair @ sK1_A @ sK2_SY194 ) @ ( cartesian_product2 @ sK3_SY197 @ sK4_SY199 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[1571]) ).

thf(1654,plain,
    ! [SV320: $i] :
      ( ( ~ ! [SY547: $i,SY548: $i] :
              ( ~ ( ~ ( ~ ( in @ ( sK8_D @ SY548 @ SY547 @ SV320 ) @ SV320 )
                      | ( in @ ( sK8_D @ SY548 @ SY547 @ SV320 ) @ SY547 )
                      | ~ ( in @ ( sK8_D @ SY548 @ SY547 @ SV320 ) @ SY548 ) )
                  | ~ ~ ( ~ ( ( in @ ( sK8_D @ SY548 @ SY547 @ SV320 ) @ SV320 )
                            | ( in @ ( sK8_D @ SY548 @ SY547 @ SV320 ) @ SY548 ) )
                        | ~ ( ~ ( in @ ( sK8_D @ SY548 @ SY547 @ SV320 ) @ SY547 )
                            | ( in @ ( sK8_D @ SY548 @ SY547 @ SV320 ) @ SY548 ) ) ) )
              | ( SY548
                = ( set_difference @ SV320 @ SY547 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[1572]) ).

thf(1655,plain,
    ! [SV320: $i] :
      ( ( ~ ! [SY549: $i,SY550: $i] :
              ( ( SY550
               != ( set_difference @ SV320 @ SY549 ) )
              | ~ ( ~ ! [SY551: $i] :
                        ( ~ ( in @ SY551 @ SV320 )
                        | ( in @ SY551 @ SY549 )
                        | ( in @ SY551 @ SY550 ) )
                  | ~ ~ ( ~ ! [SY552: $i] :
                              ( ~ ( in @ SY552 @ SY550 )
                              | ( in @ SY552 @ SV320 ) )
                        | ~ ! [SX3: $i] :
                              ( ~ ( in @ SX3 @ SY550 )
                              | ~ ( in @ SX3 @ SY549 ) ) ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[1572]) ).

thf(1656,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ( ( set_difference @ SX0 @ SX1 )
           != empty_set )
          | ( subset @ SX0 @ SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[1573]) ).

thf(1657,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( subset @ SX0 @ SX1 )
          | ( ( set_difference @ SX0 @ SX1 )
            = empty_set ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[1574]) ).

thf(1658,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ( disjoint @ SX0 @ SX1 )
          | ( in @ ( sK24_C @ SX1 @ SX0 ) @ ( set_intersection2 @ SX0 @ SX1 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[1575]) ).

thf(1659,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ! [SX2: $i] :
              ~ ( in @ SX2 @ ( set_intersection2 @ SX0 @ SX1 ) )
          | ~ ( disjoint @ SX0 @ SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[1576]) ).

thf(1660,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( subset @ SX0 @ ( singleton @ SX1 ) )
          | ( SX0 = empty_set )
          | ( SX0
            = ( singleton @ SX1 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[1577]) ).

thf(1661,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)],[1578]) ).

thf(1662,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( subset @ SX0 @ ( singleton @ SX1 ) )
          | ( SX0 = empty_set )
          | ( SX0
            = ( singleton @ SX1 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[1579]) ).

thf(1663,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)],[1580]) ).

thf(1664,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( in @ SX0 @ SX1 )
          | ( subset @ ( singleton @ SX0 ) @ SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[1581]) ).

thf(1665,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( subset @ ( singleton @ SX0 ) @ SX1 )
          | ( in @ SX0 @ SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[1582]) ).

thf(1666,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ( ( set_difference @ SX0 @ SX1 )
           != empty_set )
          | ( subset @ SX0 @ SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[1583]) ).

thf(1667,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( subset @ SX0 @ SX1 )
          | ( ( set_difference @ SX0 @ SX1 )
            = empty_set ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[1584]) ).

thf(1668,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ( disjoint @ SX0 @ SX1 )
          | ~ ( ~ ( in @ ( sK25_C @ SX1 @ SX0 ) @ SX0 )
              | ~ ( in @ ( sK25_C @ SX1 @ SX0 ) @ SX1 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[1585]) ).

thf(1669,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ! [SX2: $i] :
              ( ~ ( in @ SX2 @ SX0 )
              | ~ ( in @ SX2 @ SX1 ) )
          | ~ ( disjoint @ SX0 @ SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[1586]) ).

thf(1670,plain,
    ! [SV321: $i] :
      ( ( ~ ! [SY554: $i,SY555: $i] :
              ( ~ ( ~ ( ! [SY556: $i,SY557: $i] :
                          ( ~ ( in @ SY556 @ SV321 )
                          | ~ ( in @ SY557 @ SY554 )
                          | ( ( sK16_D @ SY555 @ SY554 @ SV321 )
                           != ( ordered_pair @ SY556 @ SY557 ) ) )
                      | ~ ( in @ ( sK16_D @ SY555 @ SY554 @ SV321 ) @ SY555 ) )
                  | ~ ( ~ ( ~ ~ ( ~ ( in @ ( sK17_SY205 @ SY555 @ SY554 @ SV321 ) @ SV321 )
                                | ~ ( in @ ( sK18_SY207 @ SY555 @ SY554 @ SV321 ) @ SY554 ) )
                          | ( ( sK16_D @ SY555 @ SY554 @ SV321 )
                           != ( ordered_pair @ ( sK17_SY205 @ SY555 @ SY554 @ SV321 ) @ ( sK18_SY207 @ SY555 @ SY554 @ SV321 ) ) ) )
                      | ( in @ ( sK16_D @ SY555 @ SY554 @ SV321 ) @ SY555 ) ) )
              | ( SY555
                = ( cartesian_product2 @ SV321 @ SY554 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[1587]) ).

thf(1671,plain,
    ! [SV321: $i] :
      ( ( ~ ! [SY558: $i,SY559: $i] :
              ( ( SY559
               != ( cartesian_product2 @ SV321 @ SY558 ) )
              | ~ ( ~ ! [SY560: $i] :
                        ( ! [SY561: $i,SY562: $i] :
                            ( ~ ( in @ SY561 @ SV321 )
                            | ~ ( in @ SY562 @ SY558 )
                            | ( SY560
                             != ( ordered_pair @ SY561 @ SY562 ) ) )
                        | ( in @ SY560 @ SY559 ) )
                  | ~ ! [SY563: $i] :
                        ( ~ ( in @ SY563 @ SY559 )
                        | ~ ( ~ ~ ( ~ ( in @ ( sK14_E @ SY563 @ SY559 @ SY558 @ SV321 ) @ SV321 )
                                  | ~ ( in @ ( sK15_SY202 @ SY563 @ SY559 @ SY558 @ SV321 ) @ SY558 ) )
                            | ( SY563
                             != ( ordered_pair @ ( sK14_E @ SY563 @ SY559 @ SY558 @ SV321 ) @ ( sK15_SY202 @ SY563 @ SY559 @ SY558 @ SV321 ) ) ) ) ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[1587]) ).

thf(1672,plain,
    ! [SV322: $i,SV261: $i] :
      ( ( ( in @ SV261 @ SV322 )
        = $false )
      | ( ( ( set_union2 @ ( singleton @ SV261 ) @ SV322 )
          = SV322 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1588]) ).

thf(1673,plain,
    ! [SV323: $i,SV262: $i] :
      ( ( ( disjoint @ ( singleton @ SV262 ) @ SV323 )
        = $false )
      | ( ( ~ ( in @ SV262 @ SV323 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1589]) ).

thf(1674,plain,
    ! [SV325: $i,SV264: $i] :
      ( ( ( subset @ SV264 @ SV325 )
        = $false )
      | ( ( ! [SY564: $i] :
              ( ( in @ SY564 @ SV264 )
              | ( subset @ SV264 @ ( set_difference @ SV325 @ ( singleton @ SY564 ) ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1591]) ).

thf(1675,plain,
    ! [SV326: $i,SV265: $i] :
      ( ( ( in @ SV265 @ SV326 )
        = $false )
      | ( ( subset @ SV265 @ ( union @ SV326 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1592]) ).

thf(1676,plain,
    ! [SV327: $i,SV362: $i,SV370: $i,SV266: $i] :
      ( ( ( SV266 = SV370 )
        | ( SV266 = SV362 )
        | ( ( unordered_pair @ SV266 @ SV327 )
         != ( unordered_pair @ SV362 @ SV370 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1593]) ).

thf(1677,plain,
    ! [SV328: $i,SV267: $i] :
      ( ( ( subset @ SV267 @ SV328 )
        = $false )
      | ( ( ( set_union2 @ SV267 @ SV328 )
          = SV328 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1594]) ).

thf(1678,plain,
    ! [SV363: $i,SV330: $i,SV269: $i] :
      ( ( ( ~ ( subset @ SV269 @ SV330 )
          | ~ ( subset @ SV269 @ SV363 ) )
        = $true )
      | ( ( subset @ SV269 @ ( set_intersection2 @ SV330 @ SV363 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1595]) ).

thf(1679,plain,
    ! [SV364: $i,SV331: $i,SV270: $i] :
      ( ( ( ~ ( subset @ SV270 @ SV331 )
          | ~ ( subset @ SV331 @ SV364 ) )
        = $true )
      | ( ( subset @ SV270 @ SV364 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1596]) ).

thf(1680,plain,
    ! [SV332: $i,SV271: $i] :
      ( ( ( subset @ SV271 @ SV332 )
        = $false )
      | ( ( ! [SY569: $i] : ( subset @ ( set_intersection2 @ SV271 @ SY569 ) @ ( set_intersection2 @ SV332 @ SY569 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1597]) ).

thf(1681,plain,
    ! [SV333: $i,SV272: $i] :
      ( ( ( subset @ SV272 @ SV333 )
        = $false )
      | ( ( ( set_intersection2 @ SV272 @ SV333 )
          = SV272 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1598]) ).

thf(1682,plain,
    ! [SV334: $i,SV274: $i] :
      ( ( ( subset @ SV274 @ SV334 )
        = $false )
      | ( ( ! [SY570: $i] : ( subset @ ( set_difference @ SV274 @ SY570 ) @ ( set_difference @ SV334 @ SY570 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1599]) ).

thf(1683,plain,
    ! [SV338: $i,SV279: $i] :
      ( ( ( subset @ SV279 @ SV338 )
        = $false )
      | ( ( SV338
          = ( set_union2 @ SV279 @ ( set_difference @ SV338 @ SV279 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1601]) ).

thf(1684,plain,
    ! [SV339: $i,SV280: $i] :
      ( ( ( in @ SV280 @ SV339 )
        = $false )
      | ( ( ( set_union2 @ ( singleton @ SV280 ) @ SV339 )
          = SV339 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1602]) ).

thf(1685,plain,
    ! [SV282: $i,SV341: $i] :
      ( ( ( proper_subset @ SV341 @ SV282 )
        = $false )
      | ( ( ~ ( subset @ SV282 @ SV341 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1603]) ).

thf(1686,plain,
    ! [SV283: $i,SV365: $i,SV342: $i] :
      ( ( ( ~ ( disjoint @ SV342 @ SV365 )
          | ~ ( subset @ SV283 @ SV342 ) )
        = $true )
      | ( ( disjoint @ SV283 @ SV365 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1604]) ).

thf(1687,plain,
    ! [SV343: $i,SV285: $i] :
      ( ( ( subset @ ( singleton @ SV285 ) @ ( singleton @ SV343 ) )
        = $false )
      | ( ( SV285 = SV343 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1605]) ).

thf(1688,plain,
    ! [SV366: $i,SV345: $i,SV287: $i] :
      ( ( ( ~ ( subset @ SV287 @ SV345 )
          | ~ ( subset @ SV366 @ SV345 ) )
        = $true )
      | ( ( subset @ ( set_union2 @ SV287 @ SV366 ) @ SV345 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1606]) ).

thf(1689,plain,
    ! [SV371: $i,SV346: $i,SV288: $i] :
      ( ( ( ( ( singleton @ SV288 )
           != ( unordered_pair @ SV346 @ SV371 ) ) )
        = $true )
      | ( ( SV288 = SV346 )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[1607]) ).

thf(1690,plain,
    ! [SV347: $i,SV289: $i] :
      ( ( ( in @ SV289 @ SV347 )
        = $false )
      | ( ( subset @ SV289 @ ( union @ SV347 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1608]) ).

thf(1691,plain,
    ! [SV367: $i,SV348: $i,SV291: $i] :
      ( ( ( ( ( singleton @ SV291 )
           != ( unordered_pair @ SV348 @ SV367 ) ) )
        = $true )
      | ( ( SV348 = SV367 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1609]) ).

thf(1692,plain,
    ! [SV349: $i,SV292: $i] :
      ( ( ( in @ SV292 @ SV349 )
        = $false )
      | ( ( ~ ( in @ SV349 @ SV292 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1610]) ).

thf(1693,plain,
    ! [SV350: $i,SV293: $i] :
      ( ( ( proper_subset @ SV293 @ SV350 )
        = $false )
      | ( ( ~ ( proper_subset @ SV350 @ SV293 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1611]) ).

thf(1694,plain,
    ! [SV368: $i,SV299: $i] :
      ( ( ( empty @ ( set_union2 @ SV299 @ SV368 ) )
        = $false )
      | ( ( empty @ SV299 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1613]) ).

thf(1695,plain,
    ! [SV300: $i,SV369: $i] :
      ( ( ( empty @ ( set_union2 @ SV369 @ SV300 ) )
        = $false )
      | ( ( empty @ SV300 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1614]) ).

thf(1696,plain,
    ! [SV356: $i,SV305: $i] :
      ( ( ( disjoint @ SV305 @ SV356 )
        = $false )
      | ( ( disjoint @ SV356 @ SV305 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1615]) ).

thf(1697,plain,
    ! [SV311: $i,SV357: $i] :
      ( ( ( empty @ SV357 )
        = $false )
      | ( ( ~ ( in @ SV311 @ SV357 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1617]) ).

thf(1698,plain,
    ! [SV358: $i,SV312: $i] :
      ( ( ( SV312 = SV358 )
        = $true )
      | ( ( ~ ( empty @ SV312 ) )
        = $true )
      | ( ( ~ ( empty @ SV358 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1618]) ).

thf(1699,plain,
    ! [SV372: $i] :
      ( ( ! [SY586: $i] :
            ( ~ ( ~ ( ! [SY587: $i] :
                        ( ~ ( in @ ( sK10_C @ SY586 @ SV372 ) @ SY587 )
                        | ~ ( in @ SY587 @ SV372 ) )
                    | ~ ( in @ ( sK10_C @ SY586 @ SV372 ) @ SY586 ) )
                | ~ ( ~ ( ~ ( in @ ( sK10_C @ SY586 @ SV372 ) @ ( sK11_SY201 @ SY586 @ SV372 ) )
                        | ~ ( in @ ( sK11_SY201 @ SY586 @ SV372 ) @ SV372 ) )
                    | ( in @ ( sK10_C @ SY586 @ SV372 ) @ SY586 ) ) )
            | ( SY586
              = ( union @ SV372 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1619]) ).

thf(1700,plain,
    ! [SV373: $i] :
      ( ( ! [SY588: $i] :
            ( ( SY588
             != ( union @ SV373 ) )
            | ~ ( ~ ! [SY589: $i] :
                      ( ! [SY590: $i] :
                          ( ~ ( in @ SY589 @ SY590 )
                          | ~ ( in @ SY590 @ SV373 ) )
                      | ( in @ SY589 @ SY588 ) )
                | ~ ! [SY591: $i] :
                      ( ~ ( in @ SY591 @ SY588 )
                      | ~ ( ~ ( in @ SY591 @ ( sK9_D @ SY591 @ SY588 @ SV373 ) )
                          | ~ ( in @ ( sK9_D @ SY591 @ SY588 @ SV373 ) @ SV373 ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1620]) ).

thf(1701,plain,
    ! [SV374: $i] :
      ( ( ! [SY592: $i] :
            ( ( ( set_difference @ SV374 @ ( singleton @ SY592 ) )
             != SV374 )
            | ~ ( in @ SY592 @ SV374 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1621]) ).

thf(1702,plain,
    ! [SV375: $i] :
      ( ( ! [SY593: $i] :
            ( ( in @ SY593 @ SV375 )
            | ( ( set_difference @ SV375 @ ( singleton @ SY593 ) )
              = SV375 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1622]) ).

thf(1703,plain,
    ! [SV376: $i] :
      ( ( ! [SY594: $i] :
            ( ~ ( ~ ( in @ ( sK13_C @ SY594 @ SV376 ) @ SV376 )
                | ~ ~ ( in @ ( sK13_C @ SY594 @ SV376 ) @ SY594 ) )
            | ( subset @ SV376 @ SY594 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1623]) ).

thf(1704,plain,
    ! [SV377: $i] :
      ( ( ! [SY595: $i] :
            ( ~ ( subset @ SV377 @ SY595 )
            | ! [SY596: $i] :
                ( ~ ( in @ SY596 @ SV377 )
                | ( in @ SY596 @ SY595 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1624]) ).

thf(1705,plain,
    ! [SV378: $i] :
      ( ( ! [SY597: $i] :
            ( ~ ( ~ ( ( ( sK23_C @ SY597 @ SV378 )
                     != SV378 )
                    | ~ ( in @ ( sK23_C @ SY597 @ SV378 ) @ SY597 ) )
                | ~ ( ( ( sK23_C @ SY597 @ SV378 )
                      = SV378 )
                    | ( in @ ( sK23_C @ SY597 @ SV378 ) @ SY597 ) ) )
            | ( SY597
              = ( singleton @ SV378 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1625]) ).

thf(1706,plain,
    ! [SV379: $i] :
      ( ( ! [SY598: $i] :
            ( ( SY598
             != ( singleton @ SV379 ) )
            | ~ ( ~ ! [SY599: $i] :
                      ( ( SY599 != SV379 )
                      | ( in @ SY599 @ SY598 ) )
                | ~ ! [SY600: $i] :
                      ( ~ ( in @ SY600 @ SY598 )
                      | ( SY600 = SV379 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1626]) ).

thf(1707,plain,
    ! [SV380: $i] :
      ( ( ! [SY601: $i] :
            ( ( ( set_intersection2 @ SV380 @ SY601 )
             != empty_set )
            | ( disjoint @ SV380 @ SY601 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1627]) ).

thf(1708,plain,
    ! [SV381: $i] :
      ( ( ! [SY602: $i] :
            ( ~ ( disjoint @ SV381 @ SY602 )
            | ( ( set_intersection2 @ SV381 @ SY602 )
              = empty_set ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1628]) ).

thf(1709,plain,
    ! [SV382: $i] :
      ( ( ! [SY603: $i] :
            ( ( SV382 = SY603 )
            | ~ ( subset @ SV382 @ SY603 )
            | ( proper_subset @ SV382 @ SY603 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1629]) ).

thf(1710,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)],[1630]) ).

thf(1711,plain,
    ! [SV359: $i,SV313: $i] :
      ( ( ~ ! [SY575: $i,SY576: $i] :
              ( ~ ( in @ SV313 @ SY575 )
              | ~ ( in @ SV359 @ SY576 )
              | ( in @ ( ordered_pair @ SV313 @ SV359 ) @ ( cartesian_product2 @ SY575 @ SY576 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[1631]) ).

thf(1712,plain,
    ! [SV359: $i,SV313: $i] :
      ( ( ~ ~ ( ~ ! [SY577: $i] :
                    ( ! [SY578: $i] :
                        ~ ( in @ ( ordered_pair @ SV313 @ SV359 ) @ ( cartesian_product2 @ SY577 @ SY578 ) )
                    | ( in @ SV313 @ SY577 ) )
              | ~ ! [SY579: $i,SY580: $i] :
                    ( ~ ( in @ ( ordered_pair @ SV313 @ SV359 ) @ ( cartesian_product2 @ SY579 @ SY580 ) )
                    | ( in @ SV359 @ SY580 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[1631]) ).

thf(1713,plain,
    ! [SV383: $i] :
      ( ( ! [SY604: $i] :
            ( ~ ( in @ SV383 @ SY604 )
            | ( subset @ ( singleton @ SV383 ) @ SY604 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1632]) ).

thf(1714,plain,
    ! [SV384: $i] :
      ( ( ! [SY605: $i] :
            ( ~ ( subset @ ( singleton @ SV384 ) @ SY605 )
            | ( in @ SV384 @ SY605 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1633]) ).

thf(1715,plain,
    ! [SV314: $i] :
      ( ( ! [SY514: $i,SY515: $i] :
            ( ~ ( ~ ( ~ ( in @ ( sK12_D @ SY515 @ SY514 @ SV314 ) @ SV314 )
                    | ~ ( in @ ( sK12_D @ SY515 @ SY514 @ SV314 ) @ SY514 )
                    | ~ ( in @ ( sK12_D @ SY515 @ SY514 @ SV314 ) @ SY515 ) )
                | ~ ~ ( ~ ( ( in @ ( sK12_D @ SY515 @ SY514 @ SV314 ) @ SV314 )
                          | ( in @ ( sK12_D @ SY515 @ SY514 @ SV314 ) @ SY515 ) )
                      | ~ ( ( in @ ( sK12_D @ SY515 @ SY514 @ SV314 ) @ SY514 )
                          | ( in @ ( sK12_D @ SY515 @ SY514 @ SV314 ) @ SY515 ) ) ) )
            | ( SY515
              = ( set_intersection2 @ SV314 @ SY514 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[1634]) ).

thf(1716,plain,
    ! [SV314: $i] :
      ( ( ! [SY516: $i,SY517: $i] :
            ( ( SY517
             != ( set_intersection2 @ SV314 @ SY516 ) )
            | ~ ( ~ ! [SY518: $i] :
                      ( ~ ( in @ SY518 @ SV314 )
                      | ~ ( in @ SY518 @ SY516 )
                      | ( in @ SY518 @ SY517 ) )
                | ~ ~ ( ~ ! [SY519: $i] :
                            ( ~ ( in @ SY519 @ SY517 )
                            | ( in @ SY519 @ SV314 ) )
                      | ~ ! [SX3: $i] :
                            ( ~ ( in @ SX3 @ SY517 )
                            | ( in @ SX3 @ SY516 ) ) ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[1635]) ).

thf(1717,plain,
    ! [SV385: $i] :
      ( ( ! [SY606: $i] :
            ( ~ ( ~ ( ~ ( in @ ( sK21_C @ SY606 @ SV385 ) @ SY606 )
                    | ~ ( subset @ ( sK21_C @ SY606 @ SV385 ) @ SV385 ) )
                | ~ ( ( in @ ( sK21_C @ SY606 @ SV385 ) @ SY606 )
                    | ( subset @ ( sK21_C @ SY606 @ SV385 ) @ SV385 ) ) )
            | ( SY606
              = ( powerset @ SV385 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1636]) ).

thf(1718,plain,
    ! [SV386: $i] :
      ( ( ! [SY607: $i] :
            ( ( SY607
             != ( powerset @ SV386 ) )
            | ~ ( ~ ! [SY608: $i] :
                      ( ~ ( in @ SY608 @ SY607 )
                      | ( subset @ SY608 @ SV386 ) )
                | ~ ! [SY609: $i] :
                      ( ~ ( subset @ SY609 @ SV386 )
                      | ( in @ SY609 @ SY607 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1637]) ).

thf(1719,plain,
    ! [SV315: $i,SV360: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK5_C @ SV360 @ SV315 ) @ SV315 )
              | ~ ( in @ ( sK5_C @ SV360 @ SV315 ) @ SV360 ) )
          | ~ ( ( in @ ( sK5_C @ SV360 @ SV315 ) @ SV315 )
              | ( in @ ( sK5_C @ SV360 @ SV315 ) @ SV360 ) ) )
        = $false )
      | ( ( SV315 = SV360 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1638]) ).

thf(1720,plain,
    ! [SV387: $i] :
      ( ( ! [SY610: $i] :
            ( ( ( set_difference @ SV387 @ SY610 )
             != SV387 )
            | ( disjoint @ SV387 @ SY610 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1639]) ).

thf(1721,plain,
    ! [SV388: $i] :
      ( ( ! [SY611: $i] :
            ( ~ ( disjoint @ SV388 @ SY611 )
            | ( ( set_difference @ SV388 @ SY611 )
              = SV388 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1640]) ).

thf(1722,plain,
    ! [SV361: $i,SV316: $i] :
      ( ( ~ ! [SY581: $i] :
              ( ! [SY582: $i] :
                  ( ( ordered_pair @ SV316 @ SV361 )
                 != ( ordered_pair @ SY581 @ SY582 ) )
              | ( SV316 = SY581 ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[1641]) ).

thf(1723,plain,
    ! [SV361: $i,SV316: $i] :
      ( ( ~ ! [SY583: $i,SY584: $i] :
              ( ( ( ordered_pair @ SV316 @ SV361 )
               != ( ordered_pair @ SY583 @ SY584 ) )
              | ( SV361 = SY584 ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[1641]) ).

thf(1724,plain,
    ! [SV317: $i] :
      ( ( ! [SY527: $i,SY528: $i] :
            ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK19_D @ SY528 @ SY527 @ SV317 ) @ SY528 )
                          | ~ ( in @ ( sK19_D @ SY528 @ SY527 @ SV317 ) @ SV317 ) )
                      | ~ ( ~ ( in @ ( sK19_D @ SY528 @ SY527 @ SV317 ) @ SY528 )
                          | ~ ( in @ ( sK19_D @ SY528 @ SY527 @ SV317 ) @ SY527 ) ) )
                | ~ ( ( in @ ( sK19_D @ SY528 @ SY527 @ SV317 ) @ SY528 )
                    | ( in @ ( sK19_D @ SY528 @ SY527 @ SV317 ) @ SV317 )
                    | ( in @ ( sK19_D @ SY528 @ SY527 @ SV317 ) @ SY527 ) ) )
            | ( SY528
              = ( set_union2 @ SV317 @ SY527 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[1642]) ).

thf(1725,plain,
    ! [SV317: $i] :
      ( ( ! [SY529: $i,SY530: $i] :
            ( ( SY530
             != ( set_union2 @ SV317 @ SY529 ) )
            | ~ ( ~ ! [SY531: $i] :
                      ( ~ ( in @ SY531 @ SY530 )
                      | ( in @ SY531 @ SV317 )
                      | ( in @ SY531 @ SY529 ) )
                | ~ ~ ( ~ ! [SY532: $i] :
                            ( ~ ( in @ SY532 @ SV317 )
                            | ( in @ SY532 @ SY530 ) )
                      | ~ ! [SX3: $i] :
                            ( ~ ( in @ SX3 @ SY529 )
                            | ( in @ SX3 @ SY530 ) ) ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[1643]) ).

thf(1726,plain,
    ! [SV389: $i] :
      ( ( ! [SY612: $i] :
            ( ~ ( subset @ SV389 @ SY612 )
            | ~ ( subset @ SY612 @ SV389 )
            | ( SV389 = SY612 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1644]) ).

thf(1727,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)],[1645]) ).

thf(1728,plain,
    ! [SV318: $i] :
      ( ( ! [SY534: $i,SY535: $i] :
            ( ~ ( in @ SV318 @ SY535 )
            | ~ ( in @ SY534 @ SY535 )
            | ( subset @ ( unordered_pair @ SV318 @ SY534 ) @ SY535 ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[1646]) ).

thf(1729,plain,
    ! [SV318: $i] :
      ( ( ~ ( ~ ! [SY536: $i,SY537: $i] :
                  ( ~ ( subset @ ( unordered_pair @ SV318 @ SY536 ) @ SY537 )
                  | ( in @ SV318 @ SY537 ) )
            | ~ ! [SY538: $i,SY539: $i] :
                  ( ~ ( subset @ ( unordered_pair @ SV318 @ SY538 ) @ SY539 )
                  | ( in @ SY538 @ SY539 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[1647]) ).

thf(1730,plain,
    ! [SV319: $i] :
      ( ( ! [SY540: $i,SY541: $i] :
            ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK20_D @ SY541 @ SY540 @ SV319 ) @ SY541 )
                          | ( ( sK20_D @ SY541 @ SY540 @ SV319 )
                           != SV319 ) )
                      | ~ ( ~ ( in @ ( sK20_D @ SY541 @ SY540 @ SV319 ) @ SY541 )
                          | ( ( sK20_D @ SY541 @ SY540 @ SV319 )
                           != SY540 ) ) )
                | ~ ( ( in @ ( sK20_D @ SY541 @ SY540 @ SV319 ) @ SY541 )
                    | ( ( sK20_D @ SY541 @ SY540 @ SV319 )
                      = SV319 )
                    | ( ( sK20_D @ SY541 @ SY540 @ SV319 )
                      = SY540 ) ) )
            | ( SY541
              = ( unordered_pair @ SV319 @ SY540 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[1648]) ).

thf(1731,plain,
    ! [SV319: $i] :
      ( ( ! [SY542: $i,SY543: $i] :
            ( ( SY543
             != ( unordered_pair @ SV319 @ SY542 ) )
            | ~ ( ~ ! [SY544: $i] :
                      ( ~ ( in @ SY544 @ SY543 )
                      | ( SY544 = SV319 )
                      | ( SY544 = SY542 ) )
                | ~ ~ ( ~ ! [SY545: $i] :
                            ( ( SY545 != SV319 )
                            | ( in @ SY545 @ SY543 ) )
                      | ~ ! [SX3: $i] :
                            ( ( SX3 != SY542 )
                            | ( in @ SX3 @ SY543 ) ) ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[1649]) ).

thf(1732,plain,
    ! [SV390: $i] :
      ( ( ( in @ ( sK22_B @ SV390 ) @ SV390 )
        | ( SV390 = empty_set ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1650]) ).

thf(1733,plain,
    ! [SV391: $i] :
      ( ( ( SV391 != empty_set )
        | ! [SY613: $i] :
            ~ ( in @ SY613 @ SV391 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1651]) ).

thf(1734,plain,
    ( ( ~ ( in @ sK1_A @ sK3_SY197 )
      | ~ ( in @ sK2_SY194 @ sK4_SY199 ) )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[1652]) ).

thf(1735,plain,
    ( ( in @ ( ordered_pair @ sK1_A @ sK2_SY194 ) @ ( cartesian_product2 @ sK3_SY197 @ sK4_SY199 ) )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[1653]) ).

thf(1736,plain,
    ! [SV320: $i] :
      ( ( ! [SY547: $i,SY548: $i] :
            ( ~ ( ~ ( ~ ( in @ ( sK8_D @ SY548 @ SY547 @ SV320 ) @ SV320 )
                    | ( in @ ( sK8_D @ SY548 @ SY547 @ SV320 ) @ SY547 )
                    | ~ ( in @ ( sK8_D @ SY548 @ SY547 @ SV320 ) @ SY548 ) )
                | ~ ~ ( ~ ( ( in @ ( sK8_D @ SY548 @ SY547 @ SV320 ) @ SV320 )
                          | ( in @ ( sK8_D @ SY548 @ SY547 @ SV320 ) @ SY548 ) )
                      | ~ ( ~ ( in @ ( sK8_D @ SY548 @ SY547 @ SV320 ) @ SY547 )
                          | ( in @ ( sK8_D @ SY548 @ SY547 @ SV320 ) @ SY548 ) ) ) )
            | ( SY548
              = ( set_difference @ SV320 @ SY547 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[1654]) ).

thf(1737,plain,
    ! [SV320: $i] :
      ( ( ! [SY549: $i,SY550: $i] :
            ( ( SY550
             != ( set_difference @ SV320 @ SY549 ) )
            | ~ ( ~ ! [SY551: $i] :
                      ( ~ ( in @ SY551 @ SV320 )
                      | ( in @ SY551 @ SY549 )
                      | ( in @ SY551 @ SY550 ) )
                | ~ ~ ( ~ ! [SY552: $i] :
                            ( ~ ( in @ SY552 @ SY550 )
                            | ( in @ SY552 @ SV320 ) )
                      | ~ ! [SX3: $i] :
                            ( ~ ( in @ SX3 @ SY550 )
                            | ~ ( in @ SX3 @ SY549 ) ) ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[1655]) ).

thf(1738,plain,
    ! [SV392: $i] :
      ( ( ! [SY614: $i] :
            ( ( ( set_difference @ SV392 @ SY614 )
             != empty_set )
            | ( subset @ SV392 @ SY614 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1656]) ).

thf(1739,plain,
    ! [SV393: $i] :
      ( ( ! [SY615: $i] :
            ( ~ ( subset @ SV393 @ SY615 )
            | ( ( set_difference @ SV393 @ SY615 )
              = empty_set ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1657]) ).

thf(1740,plain,
    ! [SV394: $i] :
      ( ( ! [SY616: $i] :
            ( ( disjoint @ SV394 @ SY616 )
            | ( in @ ( sK24_C @ SY616 @ SV394 ) @ ( set_intersection2 @ SV394 @ SY616 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1658]) ).

thf(1741,plain,
    ! [SV395: $i] :
      ( ( ! [SY617: $i] :
            ( ! [SY618: $i] :
                ~ ( in @ SY618 @ ( set_intersection2 @ SV395 @ SY617 ) )
            | ~ ( disjoint @ SV395 @ SY617 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1659]) ).

thf(1742,plain,
    ! [SV396: $i] :
      ( ( ! [SY619: $i] :
            ( ~ ( subset @ SV396 @ ( singleton @ SY619 ) )
            | ( SV396 = empty_set )
            | ( SV396
              = ( singleton @ SY619 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1660]) ).

thf(1743,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)],[1661]) ).

thf(1744,plain,
    ! [SV397: $i] :
      ( ( ! [SY620: $i] :
            ( ~ ( subset @ SV397 @ ( singleton @ SY620 ) )
            | ( SV397 = empty_set )
            | ( SV397
              = ( singleton @ SY620 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1662]) ).

thf(1745,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)],[1663]) ).

thf(1746,plain,
    ! [SV398: $i] :
      ( ( ! [SY621: $i] :
            ( ~ ( in @ SV398 @ SY621 )
            | ( subset @ ( singleton @ SV398 ) @ SY621 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1664]) ).

thf(1747,plain,
    ! [SV399: $i] :
      ( ( ! [SY622: $i] :
            ( ~ ( subset @ ( singleton @ SV399 ) @ SY622 )
            | ( in @ SV399 @ SY622 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1665]) ).

thf(1748,plain,
    ! [SV400: $i] :
      ( ( ! [SY623: $i] :
            ( ( ( set_difference @ SV400 @ SY623 )
             != empty_set )
            | ( subset @ SV400 @ SY623 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1666]) ).

thf(1749,plain,
    ! [SV401: $i] :
      ( ( ! [SY624: $i] :
            ( ~ ( subset @ SV401 @ SY624 )
            | ( ( set_difference @ SV401 @ SY624 )
              = empty_set ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1667]) ).

thf(1750,plain,
    ! [SV402: $i] :
      ( ( ! [SY625: $i] :
            ( ( disjoint @ SV402 @ SY625 )
            | ~ ( ~ ( in @ ( sK25_C @ SY625 @ SV402 ) @ SV402 )
                | ~ ( in @ ( sK25_C @ SY625 @ SV402 ) @ SY625 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1668]) ).

thf(1751,plain,
    ! [SV403: $i] :
      ( ( ! [SY626: $i] :
            ( ! [SY627: $i] :
                ( ~ ( in @ SY627 @ SV403 )
                | ~ ( in @ SY627 @ SY626 ) )
            | ~ ( disjoint @ SV403 @ SY626 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1669]) ).

thf(1752,plain,
    ! [SV321: $i] :
      ( ( ! [SY554: $i,SY555: $i] :
            ( ~ ( ~ ( ! [SY556: $i,SY557: $i] :
                        ( ~ ( in @ SY556 @ SV321 )
                        | ~ ( in @ SY557 @ SY554 )
                        | ( ( sK16_D @ SY555 @ SY554 @ SV321 )
                         != ( ordered_pair @ SY556 @ SY557 ) ) )
                    | ~ ( in @ ( sK16_D @ SY555 @ SY554 @ SV321 ) @ SY555 ) )
                | ~ ( ~ ( ~ ~ ( ~ ( in @ ( sK17_SY205 @ SY555 @ SY554 @ SV321 ) @ SV321 )
                              | ~ ( in @ ( sK18_SY207 @ SY555 @ SY554 @ SV321 ) @ SY554 ) )
                        | ( ( sK16_D @ SY555 @ SY554 @ SV321 )
                         != ( ordered_pair @ ( sK17_SY205 @ SY555 @ SY554 @ SV321 ) @ ( sK18_SY207 @ SY555 @ SY554 @ SV321 ) ) ) )
                    | ( in @ ( sK16_D @ SY555 @ SY554 @ SV321 ) @ SY555 ) ) )
            | ( SY555
              = ( cartesian_product2 @ SV321 @ SY554 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[1670]) ).

thf(1753,plain,
    ! [SV321: $i] :
      ( ( ! [SY558: $i,SY559: $i] :
            ( ( SY559
             != ( cartesian_product2 @ SV321 @ SY558 ) )
            | ~ ( ~ ! [SY560: $i] :
                      ( ! [SY561: $i,SY562: $i] :
                          ( ~ ( in @ SY561 @ SV321 )
                          | ~ ( in @ SY562 @ SY558 )
                          | ( SY560
                           != ( ordered_pair @ SY561 @ SY562 ) ) )
                      | ( in @ SY560 @ SY559 ) )
                | ~ ! [SY563: $i] :
                      ( ~ ( in @ SY563 @ SY559 )
                      | ~ ( ~ ~ ( ~ ( in @ ( sK14_E @ SY563 @ SY559 @ SY558 @ SV321 ) @ SV321 )
                                | ~ ( in @ ( sK15_SY202 @ SY563 @ SY559 @ SY558 @ SV321 ) @ SY558 ) )
                          | ( SY563
                           != ( ordered_pair @ ( sK14_E @ SY563 @ SY559 @ SY558 @ SV321 ) @ ( sK15_SY202 @ SY563 @ SY559 @ SY558 @ SV321 ) ) ) ) ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[1671]) ).

thf(1754,plain,
    ! [SV323: $i,SV262: $i] :
      ( ( ( in @ SV262 @ SV323 )
        = $false )
      | ( ( disjoint @ ( singleton @ SV262 ) @ SV323 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1673]) ).

thf(1755,plain,
    ! [SV325: $i,SV264: $i,SV404: $i] :
      ( ( ( ( in @ SV404 @ SV264 )
          | ( subset @ SV264 @ ( set_difference @ SV325 @ ( singleton @ SV404 ) ) ) )
        = $true )
      | ( ( subset @ SV264 @ SV325 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1674]) ).

thf(1756,plain,
    ! [SV327: $i,SV362: $i,SV370: $i,SV266: $i] :
      ( ( ( SV266 = SV370 )
        = $true )
      | ( ( ( SV266 = SV362 )
          | ( ( unordered_pair @ SV266 @ SV327 )
           != ( unordered_pair @ SV362 @ SV370 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1676]) ).

thf(1757,plain,
    ! [SV363: $i,SV330: $i,SV269: $i] :
      ( ( ( ~ ( subset @ SV269 @ SV330 ) )
        = $true )
      | ( ( ~ ( subset @ SV269 @ SV363 ) )
        = $true )
      | ( ( subset @ SV269 @ ( set_intersection2 @ SV330 @ SV363 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1678]) ).

thf(1758,plain,
    ! [SV364: $i,SV331: $i,SV270: $i] :
      ( ( ( ~ ( subset @ SV270 @ SV331 ) )
        = $true )
      | ( ( ~ ( subset @ SV331 @ SV364 ) )
        = $true )
      | ( ( subset @ SV270 @ SV364 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1679]) ).

thf(1759,plain,
    ! [SV332: $i,SV405: $i,SV271: $i] :
      ( ( ( subset @ ( set_intersection2 @ SV271 @ SV405 ) @ ( set_intersection2 @ SV332 @ SV405 ) )
        = $true )
      | ( ( subset @ SV271 @ SV332 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1680]) ).

thf(1760,plain,
    ! [SV334: $i,SV406: $i,SV274: $i] :
      ( ( ( subset @ ( set_difference @ SV274 @ SV406 ) @ ( set_difference @ SV334 @ SV406 ) )
        = $true )
      | ( ( subset @ SV274 @ SV334 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1682]) ).

thf(1761,plain,
    ! [SV341: $i,SV282: $i] :
      ( ( ( subset @ SV282 @ SV341 )
        = $false )
      | ( ( proper_subset @ SV341 @ SV282 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1685]) ).

thf(1762,plain,
    ! [SV283: $i,SV365: $i,SV342: $i] :
      ( ( ( ~ ( disjoint @ SV342 @ SV365 ) )
        = $true )
      | ( ( ~ ( subset @ SV283 @ SV342 ) )
        = $true )
      | ( ( disjoint @ SV283 @ SV365 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1686]) ).

thf(1763,plain,
    ! [SV366: $i,SV345: $i,SV287: $i] :
      ( ( ( ~ ( subset @ SV287 @ SV345 ) )
        = $true )
      | ( ( ~ ( subset @ SV366 @ SV345 ) )
        = $true )
      | ( ( subset @ ( set_union2 @ SV287 @ SV366 ) @ SV345 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1688]) ).

thf(1764,plain,
    ! [SV371: $i,SV346: $i,SV288: $i] :
      ( ( ( ( singleton @ SV288 )
          = ( unordered_pair @ SV346 @ SV371 ) )
        = $false )
      | ( ( SV288 = SV346 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1689]) ).

thf(1765,plain,
    ! [SV367: $i,SV348: $i,SV291: $i] :
      ( ( ( ( singleton @ SV291 )
          = ( unordered_pair @ SV348 @ SV367 ) )
        = $false )
      | ( ( SV348 = SV367 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1691]) ).

thf(1766,plain,
    ! [SV292: $i,SV349: $i] :
      ( ( ( in @ SV349 @ SV292 )
        = $false )
      | ( ( in @ SV292 @ SV349 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1692]) ).

thf(1767,plain,
    ! [SV293: $i,SV350: $i] :
      ( ( ( proper_subset @ SV350 @ SV293 )
        = $false )
      | ( ( proper_subset @ SV293 @ SV350 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1693]) ).

thf(1768,plain,
    ! [SV357: $i,SV311: $i] :
      ( ( ( in @ SV311 @ SV357 )
        = $false )
      | ( ( empty @ SV357 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1697]) ).

thf(1769,plain,
    ! [SV358: $i,SV312: $i] :
      ( ( ( empty @ SV312 )
        = $false )
      | ( ( SV312 = SV358 )
        = $true )
      | ( ( ~ ( empty @ SV358 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1698]) ).

thf(1770,plain,
    ! [SV372: $i,SV407: $i] :
      ( ( ~ ( ~ ( ! [SY628: $i] :
                    ( ~ ( in @ ( sK10_C @ SV407 @ SV372 ) @ SY628 )
                    | ~ ( in @ SY628 @ SV372 ) )
                | ~ ( in @ ( sK10_C @ SV407 @ SV372 ) @ SV407 ) )
            | ~ ( ~ ( ~ ( in @ ( sK10_C @ SV407 @ SV372 ) @ ( sK11_SY201 @ SV407 @ SV372 ) )
                    | ~ ( in @ ( sK11_SY201 @ SV407 @ SV372 ) @ SV372 ) )
                | ( in @ ( sK10_C @ SV407 @ SV372 ) @ SV407 ) ) )
        | ( SV407
          = ( union @ SV372 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1699]) ).

thf(1771,plain,
    ! [SV373: $i,SV408: $i] :
      ( ( ( SV408
         != ( union @ SV373 ) )
        | ~ ( ~ ! [SY629: $i] :
                  ( ! [SY590: $i] :
                      ( ~ ( in @ SY629 @ SY590 )
                      | ~ ( in @ SY590 @ SV373 ) )
                  | ( in @ SY629 @ SV408 ) )
            | ~ ! [SY631: $i] :
                  ( ~ ( in @ SY631 @ SV408 )
                  | ~ ( ~ ( in @ SY631 @ ( sK9_D @ SY631 @ SV408 @ SV373 ) )
                      | ~ ( in @ ( sK9_D @ SY631 @ SV408 @ SV373 ) @ SV373 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1700]) ).

thf(1772,plain,
    ! [SV409: $i,SV374: $i] :
      ( ( ( ( set_difference @ SV374 @ ( singleton @ SV409 ) )
         != SV374 )
        | ~ ( in @ SV409 @ SV374 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1701]) ).

thf(1773,plain,
    ! [SV375: $i,SV410: $i] :
      ( ( ( in @ SV410 @ SV375 )
        | ( ( set_difference @ SV375 @ ( singleton @ SV410 ) )
          = SV375 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1702]) ).

thf(1774,plain,
    ! [SV376: $i,SV411: $i] :
      ( ( ~ ( ~ ( in @ ( sK13_C @ SV411 @ SV376 ) @ SV376 )
            | ~ ~ ( in @ ( sK13_C @ SV411 @ SV376 ) @ SV411 ) )
        | ( subset @ SV376 @ SV411 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1703]) ).

thf(1775,plain,
    ! [SV412: $i,SV377: $i] :
      ( ( ~ ( subset @ SV377 @ SV412 )
        | ! [SY632: $i] :
            ( ~ ( in @ SY632 @ SV377 )
            | ( in @ SY632 @ SV412 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1704]) ).

thf(1776,plain,
    ! [SV378: $i,SV413: $i] :
      ( ( ~ ( ~ ( ( ( sK23_C @ SV413 @ SV378 )
                 != SV378 )
                | ~ ( in @ ( sK23_C @ SV413 @ SV378 ) @ SV413 ) )
            | ~ ( ( ( sK23_C @ SV413 @ SV378 )
                  = SV378 )
                | ( in @ ( sK23_C @ SV413 @ SV378 ) @ SV413 ) ) )
        | ( SV413
          = ( singleton @ SV378 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1705]) ).

thf(1777,plain,
    ! [SV379: $i,SV414: $i] :
      ( ( ( SV414
         != ( singleton @ SV379 ) )
        | ~ ( ~ ! [SY633: $i] :
                  ( ( SY633 != SV379 )
                  | ( in @ SY633 @ SV414 ) )
            | ~ ! [SY634: $i] :
                  ( ~ ( in @ SY634 @ SV414 )
                  | ( SY634 = SV379 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1706]) ).

thf(1778,plain,
    ! [SV415: $i,SV380: $i] :
      ( ( ( ( set_intersection2 @ SV380 @ SV415 )
         != empty_set )
        | ( disjoint @ SV380 @ SV415 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1707]) ).

thf(1779,plain,
    ! [SV416: $i,SV381: $i] :
      ( ( ~ ( disjoint @ SV381 @ SV416 )
        | ( ( set_intersection2 @ SV381 @ SV416 )
          = empty_set ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1708]) ).

thf(1780,plain,
    ! [SV417: $i,SV382: $i] :
      ( ( ( SV382 = SV417 )
        | ~ ( subset @ SV382 @ SV417 )
        | ( proper_subset @ SV382 @ SV417 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1709]) ).

thf(1781,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( proper_subset @ SX0 @ SX1 )
            | ( SX0 != SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[1710]) ).

thf(1782,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( proper_subset @ SX0 @ SX1 )
            | ( subset @ SX0 @ SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[1710]) ).

thf(1783,plain,
    ! [SV359: $i,SV313: $i] :
      ( ( ! [SY575: $i,SY576: $i] :
            ( ~ ( in @ SV313 @ SY575 )
            | ~ ( in @ SV359 @ SY576 )
            | ( in @ ( ordered_pair @ SV313 @ SV359 ) @ ( cartesian_product2 @ SY575 @ SY576 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[1711]) ).

thf(1784,plain,
    ! [SV359: $i,SV313: $i] :
      ( ( ~ ( ~ ! [SY577: $i] :
                  ( ! [SY578: $i] :
                      ~ ( in @ ( ordered_pair @ SV313 @ SV359 ) @ ( cartesian_product2 @ SY577 @ SY578 ) )
                  | ( in @ SV313 @ SY577 ) )
            | ~ ! [SY579: $i,SY580: $i] :
                  ( ~ ( in @ ( ordered_pair @ SV313 @ SV359 ) @ ( cartesian_product2 @ SY579 @ SY580 ) )
                  | ( in @ SV359 @ SY580 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[1712]) ).

thf(1785,plain,
    ! [SV418: $i,SV383: $i] :
      ( ( ~ ( in @ SV383 @ SV418 )
        | ( subset @ ( singleton @ SV383 ) @ SV418 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1713]) ).

thf(1786,plain,
    ! [SV419: $i,SV384: $i] :
      ( ( ~ ( subset @ ( singleton @ SV384 ) @ SV419 )
        | ( in @ SV384 @ SV419 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1714]) ).

thf(1787,plain,
    ! [SV314: $i,SV420: $i] :
      ( ( ! [SY635: $i] :
            ( ~ ( ~ ( ~ ( in @ ( sK12_D @ SY635 @ SV420 @ SV314 ) @ SV314 )
                    | ~ ( in @ ( sK12_D @ SY635 @ SV420 @ SV314 ) @ SV420 )
                    | ~ ( in @ ( sK12_D @ SY635 @ SV420 @ SV314 ) @ SY635 ) )
                | ~ ~ ( ~ ( ( in @ ( sK12_D @ SY635 @ SV420 @ SV314 ) @ SV314 )
                          | ( in @ ( sK12_D @ SY635 @ SV420 @ SV314 ) @ SY635 ) )
                      | ~ ( ( in @ ( sK12_D @ SY635 @ SV420 @ SV314 ) @ SV420 )
                          | ( in @ ( sK12_D @ SY635 @ SV420 @ SV314 ) @ SY635 ) ) ) )
            | ( SY635
              = ( set_intersection2 @ SV314 @ SV420 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1715]) ).

thf(1788,plain,
    ! [SV421: $i,SV314: $i] :
      ( ( ! [SY636: $i] :
            ( ( SY636
             != ( set_intersection2 @ SV314 @ SV421 ) )
            | ~ ( ~ ! [SY637: $i] :
                      ( ~ ( in @ SY637 @ SV314 )
                      | ~ ( in @ SY637 @ SV421 )
                      | ( in @ SY637 @ SY636 ) )
                | ~ ~ ( ~ ! [SY519: $i] :
                            ( ~ ( in @ SY519 @ SY636 )
                            | ( in @ SY519 @ SV314 ) )
                      | ~ ! [SY639: $i] :
                            ( ~ ( in @ SY639 @ SY636 )
                            | ( in @ SY639 @ SV421 ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1716]) ).

thf(1789,plain,
    ! [SV385: $i,SV422: $i] :
      ( ( ~ ( ~ ( ~ ( in @ ( sK21_C @ SV422 @ SV385 ) @ SV422 )
                | ~ ( subset @ ( sK21_C @ SV422 @ SV385 ) @ SV385 ) )
            | ~ ( ( in @ ( sK21_C @ SV422 @ SV385 ) @ SV422 )
                | ( subset @ ( sK21_C @ SV422 @ SV385 ) @ SV385 ) ) )
        | ( SV422
          = ( powerset @ SV385 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1717]) ).

thf(1790,plain,
    ! [SV386: $i,SV423: $i] :
      ( ( ( SV423
         != ( powerset @ SV386 ) )
        | ~ ( ~ ! [SY640: $i] :
                  ( ~ ( in @ SY640 @ SV423 )
                  | ( subset @ SY640 @ SV386 ) )
            | ~ ! [SY641: $i] :
                  ( ~ ( subset @ SY641 @ SV386 )
                  | ( in @ SY641 @ SV423 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1718]) ).

thf(1791,plain,
    ! [SV315: $i,SV360: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK5_C @ SV360 @ SV315 ) @ SV315 )
              | ~ ( in @ ( sK5_C @ SV360 @ SV315 ) @ SV360 ) ) )
        = $false )
      | ( ( SV315 = SV360 )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1719]) ).

thf(1792,plain,
    ! [SV315: $i,SV360: $i] :
      ( ( ( ~ ( ( in @ ( sK5_C @ SV360 @ SV315 ) @ SV315 )
              | ( in @ ( sK5_C @ SV360 @ SV315 ) @ SV360 ) ) )
        = $false )
      | ( ( SV315 = SV360 )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1719]) ).

thf(1793,plain,
    ! [SV424: $i,SV387: $i] :
      ( ( ( ( set_difference @ SV387 @ SV424 )
         != SV387 )
        | ( disjoint @ SV387 @ SV424 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1720]) ).

thf(1794,plain,
    ! [SV425: $i,SV388: $i] :
      ( ( ~ ( disjoint @ SV388 @ SV425 )
        | ( ( set_difference @ SV388 @ SV425 )
          = SV388 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1721]) ).

thf(1795,plain,
    ! [SV361: $i,SV316: $i] :
      ( ( ! [SY581: $i] :
            ( ! [SY582: $i] :
                ( ( ordered_pair @ SV316 @ SV361 )
               != ( ordered_pair @ SY581 @ SY582 ) )
            | ( SV316 = SY581 ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[1722]) ).

thf(1796,plain,
    ! [SV361: $i,SV316: $i] :
      ( ( ! [SY583: $i,SY584: $i] :
            ( ( ( ordered_pair @ SV316 @ SV361 )
             != ( ordered_pair @ SY583 @ SY584 ) )
            | ( SV361 = SY584 ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[1723]) ).

thf(1797,plain,
    ! [SV317: $i,SV426: $i] :
      ( ( ! [SY642: $i] :
            ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK19_D @ SY642 @ SV426 @ SV317 ) @ SY642 )
                          | ~ ( in @ ( sK19_D @ SY642 @ SV426 @ SV317 ) @ SV317 ) )
                      | ~ ( ~ ( in @ ( sK19_D @ SY642 @ SV426 @ SV317 ) @ SY642 )
                          | ~ ( in @ ( sK19_D @ SY642 @ SV426 @ SV317 ) @ SV426 ) ) )
                | ~ ( ( in @ ( sK19_D @ SY642 @ SV426 @ SV317 ) @ SY642 )
                    | ( in @ ( sK19_D @ SY642 @ SV426 @ SV317 ) @ SV317 )
                    | ( in @ ( sK19_D @ SY642 @ SV426 @ SV317 ) @ SV426 ) ) )
            | ( SY642
              = ( set_union2 @ SV317 @ SV426 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1724]) ).

thf(1798,plain,
    ! [SV427: $i,SV317: $i] :
      ( ( ! [SY643: $i] :
            ( ( SY643
             != ( set_union2 @ SV317 @ SV427 ) )
            | ~ ( ~ ! [SY644: $i] :
                      ( ~ ( in @ SY644 @ SY643 )
                      | ( in @ SY644 @ SV317 )
                      | ( in @ SY644 @ SV427 ) )
                | ~ ~ ( ~ ! [SY532: $i] :
                            ( ~ ( in @ SY532 @ SV317 )
                            | ( in @ SY532 @ SY643 ) )
                      | ~ ! [SY646: $i] :
                            ( ~ ( in @ SY646 @ SV427 )
                            | ( in @ SY646 @ SY643 ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1725]) ).

thf(1799,plain,
    ! [SV428: $i,SV389: $i] :
      ( ( ~ ( subset @ SV389 @ SV428 )
        | ~ ( subset @ SV428 @ SV389 )
        | ( SV389 = SV428 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1726]) ).

thf(1800,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( SX0 != SX1 )
            | ( subset @ SX0 @ SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[1727]) ).

thf(1801,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( SX0 != SX1 )
            | ( subset @ SX1 @ SX0 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[1727]) ).

thf(1802,plain,
    ! [SV429: $i,SV318: $i] :
      ( ( ! [SY647: $i] :
            ( ~ ( in @ SV318 @ SY647 )
            | ~ ( in @ SV429 @ SY647 )
            | ( subset @ ( unordered_pair @ SV318 @ SV429 ) @ SY647 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1728]) ).

thf(1803,plain,
    ! [SV318: $i] :
      ( ( ~ ! [SY536: $i,SY537: $i] :
              ( ~ ( subset @ ( unordered_pair @ SV318 @ SY536 ) @ SY537 )
              | ( in @ SV318 @ SY537 ) )
        | ~ ! [SY538: $i,SY539: $i] :
              ( ~ ( subset @ ( unordered_pair @ SV318 @ SY538 ) @ SY539 )
              | ( in @ SY538 @ SY539 ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[1729]) ).

thf(1804,plain,
    ! [SV319: $i,SV430: $i] :
      ( ( ! [SY648: $i] :
            ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK20_D @ SY648 @ SV430 @ SV319 ) @ SY648 )
                          | ( ( sK20_D @ SY648 @ SV430 @ SV319 )
                           != SV319 ) )
                      | ~ ( ~ ( in @ ( sK20_D @ SY648 @ SV430 @ SV319 ) @ SY648 )
                          | ( ( sK20_D @ SY648 @ SV430 @ SV319 )
                           != SV430 ) ) )
                | ~ ( ( in @ ( sK20_D @ SY648 @ SV430 @ SV319 ) @ SY648 )
                    | ( ( sK20_D @ SY648 @ SV430 @ SV319 )
                      = SV319 )
                    | ( ( sK20_D @ SY648 @ SV430 @ SV319 )
                      = SV430 ) ) )
            | ( SY648
              = ( unordered_pair @ SV319 @ SV430 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1730]) ).

thf(1805,plain,
    ! [SV431: $i,SV319: $i] :
      ( ( ! [SY649: $i] :
            ( ( SY649
             != ( unordered_pair @ SV319 @ SV431 ) )
            | ~ ( ~ ! [SY650: $i] :
                      ( ~ ( in @ SY650 @ SY649 )
                      | ( SY650 = SV319 )
                      | ( SY650 = SV431 ) )
                | ~ ~ ( ~ ! [SY545: $i] :
                            ( ( SY545 != SV319 )
                            | ( in @ SY545 @ SY649 ) )
                      | ~ ! [SY652: $i] :
                            ( ( SY652 != SV431 )
                            | ( in @ SY652 @ SY649 ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1731]) ).

thf(1806,plain,
    ! [SV390: $i] :
      ( ( ( in @ ( sK22_B @ SV390 ) @ SV390 )
        = $true )
      | ( ( SV390 = empty_set )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1732]) ).

thf(1807,plain,
    ! [SV391: $i] :
      ( ( ( ( SV391 != empty_set ) )
        = $true )
      | ( ( ! [SY613: $i] :
              ~ ( in @ SY613 @ SV391 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1733]) ).

thf(1808,plain,
    ( ( ~ ( in @ sK1_A @ sK3_SY197 ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[1734]) ).

thf(1809,plain,
    ( ( ~ ( in @ sK2_SY194 @ sK4_SY199 ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[1734]) ).

thf(1810,plain,
    ! [SV320: $i,SV432: $i] :
      ( ( ! [SY653: $i] :
            ( ~ ( ~ ( ~ ( in @ ( sK8_D @ SY653 @ SV432 @ SV320 ) @ SV320 )
                    | ( in @ ( sK8_D @ SY653 @ SV432 @ SV320 ) @ SV432 )
                    | ~ ( in @ ( sK8_D @ SY653 @ SV432 @ SV320 ) @ SY653 ) )
                | ~ ~ ( ~ ( ( in @ ( sK8_D @ SY653 @ SV432 @ SV320 ) @ SV320 )
                          | ( in @ ( sK8_D @ SY653 @ SV432 @ SV320 ) @ SY653 ) )
                      | ~ ( ~ ( in @ ( sK8_D @ SY653 @ SV432 @ SV320 ) @ SV432 )
                          | ( in @ ( sK8_D @ SY653 @ SV432 @ SV320 ) @ SY653 ) ) ) )
            | ( SY653
              = ( set_difference @ SV320 @ SV432 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1736]) ).

thf(1811,plain,
    ! [SV433: $i,SV320: $i] :
      ( ( ! [SY654: $i] :
            ( ( SY654
             != ( set_difference @ SV320 @ SV433 ) )
            | ~ ( ~ ! [SY655: $i] :
                      ( ~ ( in @ SY655 @ SV320 )
                      | ( in @ SY655 @ SV433 )
                      | ( in @ SY655 @ SY654 ) )
                | ~ ~ ( ~ ! [SY552: $i] :
                            ( ~ ( in @ SY552 @ SY654 )
                            | ( in @ SY552 @ SV320 ) )
                      | ~ ! [SY657: $i] :
                            ( ~ ( in @ SY657 @ SY654 )
                            | ~ ( in @ SY657 @ SV433 ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1737]) ).

thf(1812,plain,
    ! [SV434: $i,SV392: $i] :
      ( ( ( ( set_difference @ SV392 @ SV434 )
         != empty_set )
        | ( subset @ SV392 @ SV434 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1738]) ).

thf(1813,plain,
    ! [SV435: $i,SV393: $i] :
      ( ( ~ ( subset @ SV393 @ SV435 )
        | ( ( set_difference @ SV393 @ SV435 )
          = empty_set ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1739]) ).

thf(1814,plain,
    ! [SV436: $i,SV394: $i] :
      ( ( ( disjoint @ SV394 @ SV436 )
        | ( in @ ( sK24_C @ SV436 @ SV394 ) @ ( set_intersection2 @ SV394 @ SV436 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1740]) ).

thf(1815,plain,
    ! [SV437: $i,SV395: $i] :
      ( ( ! [SY658: $i] :
            ~ ( in @ SY658 @ ( set_intersection2 @ SV395 @ SV437 ) )
        | ~ ( disjoint @ SV395 @ SV437 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1741]) ).

thf(1816,plain,
    ! [SV438: $i,SV396: $i] :
      ( ( ~ ( subset @ SV396 @ ( singleton @ SV438 ) )
        | ( SV396 = empty_set )
        | ( SV396
          = ( singleton @ SV438 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1742]) ).

thf(1817,plain,
    ( ( ~ ! [SX0: $i] :
            ( ( SX0 != empty_set )
            | ! [SX1: $i] : ( subset @ SX0 @ ( singleton @ SX1 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[1743]) ).

thf(1818,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( SX0
             != ( singleton @ SX1 ) )
            | ( subset @ SX0 @ ( singleton @ SX1 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[1743]) ).

thf(1819,plain,
    ! [SV439: $i,SV397: $i] :
      ( ( ~ ( subset @ SV397 @ ( singleton @ SV439 ) )
        | ( SV397 = empty_set )
        | ( SV397
          = ( singleton @ SV439 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1744]) ).

thf(1820,plain,
    ( ( ~ ! [SX0: $i] :
            ( ( SX0 != empty_set )
            | ! [SX1: $i] : ( subset @ SX0 @ ( singleton @ SX1 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[1745]) ).

thf(1821,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( SX0
             != ( singleton @ SX1 ) )
            | ( subset @ SX0 @ ( singleton @ SX1 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[1745]) ).

thf(1822,plain,
    ! [SV440: $i,SV398: $i] :
      ( ( ~ ( in @ SV398 @ SV440 )
        | ( subset @ ( singleton @ SV398 ) @ SV440 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1746]) ).

thf(1823,plain,
    ! [SV441: $i,SV399: $i] :
      ( ( ~ ( subset @ ( singleton @ SV399 ) @ SV441 )
        | ( in @ SV399 @ SV441 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1747]) ).

thf(1824,plain,
    ! [SV442: $i,SV400: $i] :
      ( ( ( ( set_difference @ SV400 @ SV442 )
         != empty_set )
        | ( subset @ SV400 @ SV442 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1748]) ).

thf(1825,plain,
    ! [SV443: $i,SV401: $i] :
      ( ( ~ ( subset @ SV401 @ SV443 )
        | ( ( set_difference @ SV401 @ SV443 )
          = empty_set ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1749]) ).

thf(1826,plain,
    ! [SV444: $i,SV402: $i] :
      ( ( ( disjoint @ SV402 @ SV444 )
        | ~ ( ~ ( in @ ( sK25_C @ SV444 @ SV402 ) @ SV402 )
            | ~ ( in @ ( sK25_C @ SV444 @ SV402 ) @ SV444 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1750]) ).

thf(1827,plain,
    ! [SV445: $i,SV403: $i] :
      ( ( ! [SY659: $i] :
            ( ~ ( in @ SY659 @ SV403 )
            | ~ ( in @ SY659 @ SV445 ) )
        | ~ ( disjoint @ SV403 @ SV445 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1751]) ).

thf(1828,plain,
    ! [SV446: $i,SV321: $i] :
      ( ( ! [SY660: $i] :
            ( ~ ( ~ ( ! [SY661: $i,SY662: $i] :
                        ( ~ ( in @ SY661 @ SV321 )
                        | ~ ( in @ SY662 @ SV446 )
                        | ( ( sK16_D @ SY660 @ SV446 @ SV321 )
                         != ( ordered_pair @ SY661 @ SY662 ) ) )
                    | ~ ( in @ ( sK16_D @ SY660 @ SV446 @ SV321 ) @ SY660 ) )
                | ~ ( ~ ( ~ ~ ( ~ ( in @ ( sK17_SY205 @ SY660 @ SV446 @ SV321 ) @ SV321 )
                              | ~ ( in @ ( sK18_SY207 @ SY660 @ SV446 @ SV321 ) @ SV446 ) )
                        | ( ( sK16_D @ SY660 @ SV446 @ SV321 )
                         != ( ordered_pair @ ( sK17_SY205 @ SY660 @ SV446 @ SV321 ) @ ( sK18_SY207 @ SY660 @ SV446 @ SV321 ) ) ) )
                    | ( in @ ( sK16_D @ SY660 @ SV446 @ SV321 ) @ SY660 ) ) )
            | ( SY660
              = ( cartesian_product2 @ SV321 @ SV446 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1752]) ).

thf(1829,plain,
    ! [SV447: $i,SV321: $i] :
      ( ( ! [SY663: $i] :
            ( ( SY663
             != ( cartesian_product2 @ SV321 @ SV447 ) )
            | ~ ( ~ ! [SY664: $i] :
                      ( ! [SY665: $i,SY666: $i] :
                          ( ~ ( in @ SY665 @ SV321 )
                          | ~ ( in @ SY666 @ SV447 )
                          | ( SY664
                           != ( ordered_pair @ SY665 @ SY666 ) ) )
                      | ( in @ SY664 @ SY663 ) )
                | ~ ! [SY667: $i] :
                      ( ~ ( in @ SY667 @ SY663 )
                      | ~ ( ~ ~ ( ~ ( in @ ( sK14_E @ SY667 @ SY663 @ SV447 @ SV321 ) @ SV321 )
                                | ~ ( in @ ( sK15_SY202 @ SY667 @ SY663 @ SV447 @ SV321 ) @ SV447 ) )
                          | ( SY667
                           != ( ordered_pair @ ( sK14_E @ SY667 @ SY663 @ SV447 @ SV321 ) @ ( sK15_SY202 @ SY667 @ SY663 @ SV447 @ SV321 ) ) ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1753]) ).

thf(1830,plain,
    ! [SV325: $i,SV264: $i,SV404: $i] :
      ( ( ( in @ SV404 @ SV264 )
        = $true )
      | ( ( subset @ SV264 @ ( set_difference @ SV325 @ ( singleton @ SV404 ) ) )
        = $true )
      | ( ( subset @ SV264 @ SV325 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1755]) ).

thf(1831,plain,
    ! [SV370: $i,SV327: $i,SV362: $i,SV266: $i] :
      ( ( ( SV266 = SV362 )
        = $true )
      | ( ( ( ( unordered_pair @ SV266 @ SV327 )
           != ( unordered_pair @ SV362 @ SV370 ) ) )
        = $true )
      | ( ( SV266 = SV370 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1756]) ).

thf(1832,plain,
    ! [SV363: $i,SV330: $i,SV269: $i] :
      ( ( ( subset @ SV269 @ SV330 )
        = $false )
      | ( ( ~ ( subset @ SV269 @ SV363 ) )
        = $true )
      | ( ( subset @ SV269 @ ( set_intersection2 @ SV330 @ SV363 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1757]) ).

thf(1833,plain,
    ! [SV364: $i,SV331: $i,SV270: $i] :
      ( ( ( subset @ SV270 @ SV331 )
        = $false )
      | ( ( ~ ( subset @ SV331 @ SV364 ) )
        = $true )
      | ( ( subset @ SV270 @ SV364 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1758]) ).

thf(1834,plain,
    ! [SV283: $i,SV365: $i,SV342: $i] :
      ( ( ( disjoint @ SV342 @ SV365 )
        = $false )
      | ( ( ~ ( subset @ SV283 @ SV342 ) )
        = $true )
      | ( ( disjoint @ SV283 @ SV365 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1762]) ).

thf(1835,plain,
    ! [SV366: $i,SV345: $i,SV287: $i] :
      ( ( ( subset @ SV287 @ SV345 )
        = $false )
      | ( ( ~ ( subset @ SV366 @ SV345 ) )
        = $true )
      | ( ( subset @ ( set_union2 @ SV287 @ SV366 ) @ SV345 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1763]) ).

thf(1836,plain,
    ! [SV312: $i,SV358: $i] :
      ( ( ( empty @ SV358 )
        = $false )
      | ( ( SV312 = SV358 )
        = $true )
      | ( ( empty @ SV312 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1769]) ).

thf(1837,plain,
    ! [SV372: $i,SV407: $i] :
      ( ( ( ~ ( ~ ( ! [SY628: $i] :
                      ( ~ ( in @ ( sK10_C @ SV407 @ SV372 ) @ SY628 )
                      | ~ ( in @ SY628 @ SV372 ) )
                  | ~ ( in @ ( sK10_C @ SV407 @ SV372 ) @ SV407 ) )
              | ~ ( ~ ( ~ ( in @ ( sK10_C @ SV407 @ SV372 ) @ ( sK11_SY201 @ SV407 @ SV372 ) )
                      | ~ ( in @ ( sK11_SY201 @ SV407 @ SV372 ) @ SV372 ) )
                  | ( in @ ( sK10_C @ SV407 @ SV372 ) @ SV407 ) ) ) )
        = $true )
      | ( ( SV407
          = ( union @ SV372 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1770]) ).

thf(1838,plain,
    ! [SV373: $i,SV408: $i] :
      ( ( ( ( SV408
           != ( union @ SV373 ) ) )
        = $true )
      | ( ( ~ ( ~ ! [SY629: $i] :
                    ( ! [SY590: $i] :
                        ( ~ ( in @ SY629 @ SY590 )
                        | ~ ( in @ SY590 @ SV373 ) )
                    | ( in @ SY629 @ SV408 ) )
              | ~ ! [SY631: $i] :
                    ( ~ ( in @ SY631 @ SV408 )
                    | ~ ( ~ ( in @ SY631 @ ( sK9_D @ SY631 @ SV408 @ SV373 ) )
                        | ~ ( in @ ( sK9_D @ SY631 @ SV408 @ SV373 ) @ SV373 ) ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1771]) ).

thf(1839,plain,
    ! [SV409: $i,SV374: $i] :
      ( ( ( ( ( set_difference @ SV374 @ ( singleton @ SV409 ) )
           != SV374 ) )
        = $true )
      | ( ( ~ ( in @ SV409 @ SV374 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1772]) ).

thf(1840,plain,
    ! [SV375: $i,SV410: $i] :
      ( ( ( in @ SV410 @ SV375 )
        = $true )
      | ( ( ( set_difference @ SV375 @ ( singleton @ SV410 ) )
          = SV375 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1773]) ).

thf(1841,plain,
    ! [SV376: $i,SV411: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK13_C @ SV411 @ SV376 ) @ SV376 )
              | ~ ~ ( in @ ( sK13_C @ SV411 @ SV376 ) @ SV411 ) ) )
        = $true )
      | ( ( subset @ SV376 @ SV411 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1774]) ).

thf(1842,plain,
    ! [SV412: $i,SV377: $i] :
      ( ( ( ~ ( subset @ SV377 @ SV412 ) )
        = $true )
      | ( ( ! [SY632: $i] :
              ( ~ ( in @ SY632 @ SV377 )
              | ( in @ SY632 @ SV412 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1775]) ).

thf(1843,plain,
    ! [SV378: $i,SV413: $i] :
      ( ( ( ~ ( ~ ( ( ( sK23_C @ SV413 @ SV378 )
                   != SV378 )
                  | ~ ( in @ ( sK23_C @ SV413 @ SV378 ) @ SV413 ) )
              | ~ ( ( ( sK23_C @ SV413 @ SV378 )
                    = SV378 )
                  | ( in @ ( sK23_C @ SV413 @ SV378 ) @ SV413 ) ) ) )
        = $true )
      | ( ( SV413
          = ( singleton @ SV378 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1776]) ).

thf(1844,plain,
    ! [SV379: $i,SV414: $i] :
      ( ( ( ( SV414
           != ( singleton @ SV379 ) ) )
        = $true )
      | ( ( ~ ( ~ ! [SY633: $i] :
                    ( ( SY633 != SV379 )
                    | ( in @ SY633 @ SV414 ) )
              | ~ ! [SY634: $i] :
                    ( ~ ( in @ SY634 @ SV414 )
                    | ( SY634 = SV379 ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1777]) ).

thf(1845,plain,
    ! [SV415: $i,SV380: $i] :
      ( ( ( ( ( set_intersection2 @ SV380 @ SV415 )
           != empty_set ) )
        = $true )
      | ( ( disjoint @ SV380 @ SV415 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1778]) ).

thf(1846,plain,
    ! [SV416: $i,SV381: $i] :
      ( ( ( ~ ( disjoint @ SV381 @ SV416 ) )
        = $true )
      | ( ( ( set_intersection2 @ SV381 @ SV416 )
          = empty_set )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1779]) ).

thf(1847,plain,
    ! [SV417: $i,SV382: $i] :
      ( ( ( ( SV382 = SV417 )
          | ~ ( subset @ SV382 @ SV417 ) )
        = $true )
      | ( ( proper_subset @ SV382 @ SV417 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1780]) ).

thf(1848,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( proper_subset @ SX0 @ SX1 )
          | ( SX0 != SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[1781]) ).

thf(1849,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( proper_subset @ SX0 @ SX1 )
          | ( subset @ SX0 @ SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[1782]) ).

thf(1850,plain,
    ! [SV359: $i,SV448: $i,SV313: $i] :
      ( ( ! [SY668: $i] :
            ( ~ ( in @ SV313 @ SV448 )
            | ~ ( in @ SV359 @ SY668 )
            | ( in @ ( ordered_pair @ SV313 @ SV359 ) @ ( cartesian_product2 @ SV448 @ SY668 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1783]) ).

thf(1851,plain,
    ! [SV359: $i,SV313: $i] :
      ( ( ~ ! [SY577: $i] :
              ( ! [SY578: $i] :
                  ~ ( in @ ( ordered_pair @ SV313 @ SV359 ) @ ( cartesian_product2 @ SY577 @ SY578 ) )
              | ( in @ SV313 @ SY577 ) )
        | ~ ! [SY579: $i,SY580: $i] :
              ( ~ ( in @ ( ordered_pair @ SV313 @ SV359 ) @ ( cartesian_product2 @ SY579 @ SY580 ) )
              | ( in @ SV359 @ SY580 ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[1784]) ).

thf(1852,plain,
    ! [SV418: $i,SV383: $i] :
      ( ( ( ~ ( in @ SV383 @ SV418 ) )
        = $true )
      | ( ( subset @ ( singleton @ SV383 ) @ SV418 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1785]) ).

thf(1853,plain,
    ! [SV419: $i,SV384: $i] :
      ( ( ( ~ ( subset @ ( singleton @ SV384 ) @ SV419 ) )
        = $true )
      | ( ( in @ SV384 @ SV419 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1786]) ).

thf(1854,plain,
    ! [SV314: $i,SV420: $i,SV449: $i] :
      ( ( ~ ( ~ ( ~ ( in @ ( sK12_D @ SV449 @ SV420 @ SV314 ) @ SV314 )
                | ~ ( in @ ( sK12_D @ SV449 @ SV420 @ SV314 ) @ SV420 )
                | ~ ( in @ ( sK12_D @ SV449 @ SV420 @ SV314 ) @ SV449 ) )
            | ~ ~ ( ~ ( ( in @ ( sK12_D @ SV449 @ SV420 @ SV314 ) @ SV314 )
                      | ( in @ ( sK12_D @ SV449 @ SV420 @ SV314 ) @ SV449 ) )
                  | ~ ( ( in @ ( sK12_D @ SV449 @ SV420 @ SV314 ) @ SV420 )
                      | ( in @ ( sK12_D @ SV449 @ SV420 @ SV314 ) @ SV449 ) ) ) )
        | ( SV449
          = ( set_intersection2 @ SV314 @ SV420 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1787]) ).

thf(1855,plain,
    ! [SV421: $i,SV314: $i,SV450: $i] :
      ( ( ( SV450
         != ( set_intersection2 @ SV314 @ SV421 ) )
        | ~ ( ~ ! [SY669: $i] :
                  ( ~ ( in @ SY669 @ SV314 )
                  | ~ ( in @ SY669 @ SV421 )
                  | ( in @ SY669 @ SV450 ) )
            | ~ ~ ( ~ ! [SY670: $i] :
                        ( ~ ( in @ SY670 @ SV450 )
                        | ( in @ SY670 @ SV314 ) )
                  | ~ ! [SY671: $i] :
                        ( ~ ( in @ SY671 @ SV450 )
                        | ( in @ SY671 @ SV421 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1788]) ).

thf(1856,plain,
    ! [SV385: $i,SV422: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ ( sK21_C @ SV422 @ SV385 ) @ SV422 )
                  | ~ ( subset @ ( sK21_C @ SV422 @ SV385 ) @ SV385 ) )
              | ~ ( ( in @ ( sK21_C @ SV422 @ SV385 ) @ SV422 )
                  | ( subset @ ( sK21_C @ SV422 @ SV385 ) @ SV385 ) ) ) )
        = $true )
      | ( ( SV422
          = ( powerset @ SV385 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1789]) ).

thf(1857,plain,
    ! [SV386: $i,SV423: $i] :
      ( ( ( ( SV423
           != ( powerset @ SV386 ) ) )
        = $true )
      | ( ( ~ ( ~ ! [SY640: $i] :
                    ( ~ ( in @ SY640 @ SV423 )
                    | ( subset @ SY640 @ SV386 ) )
              | ~ ! [SY641: $i] :
                    ( ~ ( subset @ SY641 @ SV386 )
                    | ( in @ SY641 @ SV423 ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1790]) ).

thf(1858,plain,
    ! [SV315: $i,SV360: $i] :
      ( ( ( ~ ( in @ ( sK5_C @ SV360 @ SV315 ) @ SV315 )
          | ~ ( in @ ( sK5_C @ SV360 @ SV315 ) @ SV360 ) )
        = $true )
      | ( ( SV315 = SV360 )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1791]) ).

thf(1859,plain,
    ! [SV315: $i,SV360: $i] :
      ( ( ( ( in @ ( sK5_C @ SV360 @ SV315 ) @ SV315 )
          | ( in @ ( sK5_C @ SV360 @ SV315 ) @ SV360 ) )
        = $true )
      | ( ( SV315 = SV360 )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1792]) ).

thf(1860,plain,
    ! [SV424: $i,SV387: $i] :
      ( ( ( ( ( set_difference @ SV387 @ SV424 )
           != SV387 ) )
        = $true )
      | ( ( disjoint @ SV387 @ SV424 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1793]) ).

thf(1861,plain,
    ! [SV425: $i,SV388: $i] :
      ( ( ( ~ ( disjoint @ SV388 @ SV425 ) )
        = $true )
      | ( ( ( set_difference @ SV388 @ SV425 )
          = SV388 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1794]) ).

thf(1862,plain,
    ! [SV451: $i,SV361: $i,SV316: $i] :
      ( ( ! [SY672: $i] :
            ( ( ordered_pair @ SV316 @ SV361 )
           != ( ordered_pair @ SV451 @ SY672 ) )
        | ( SV316 = SV451 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1795]) ).

thf(1863,plain,
    ! [SV452: $i,SV361: $i,SV316: $i] :
      ( ( ! [SY673: $i] :
            ( ( ( ordered_pair @ SV316 @ SV361 )
             != ( ordered_pair @ SV452 @ SY673 ) )
            | ( SV361 = SY673 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1796]) ).

thf(1864,plain,
    ! [SV317: $i,SV426: $i,SV453: $i] :
      ( ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK19_D @ SV453 @ SV426 @ SV317 ) @ SV453 )
                      | ~ ( in @ ( sK19_D @ SV453 @ SV426 @ SV317 ) @ SV317 ) )
                  | ~ ( ~ ( in @ ( sK19_D @ SV453 @ SV426 @ SV317 ) @ SV453 )
                      | ~ ( in @ ( sK19_D @ SV453 @ SV426 @ SV317 ) @ SV426 ) ) )
            | ~ ( ( in @ ( sK19_D @ SV453 @ SV426 @ SV317 ) @ SV453 )
                | ( in @ ( sK19_D @ SV453 @ SV426 @ SV317 ) @ SV317 )
                | ( in @ ( sK19_D @ SV453 @ SV426 @ SV317 ) @ SV426 ) ) )
        | ( SV453
          = ( set_union2 @ SV317 @ SV426 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1797]) ).

thf(1865,plain,
    ! [SV427: $i,SV317: $i,SV454: $i] :
      ( ( ( SV454
         != ( set_union2 @ SV317 @ SV427 ) )
        | ~ ( ~ ! [SY674: $i] :
                  ( ~ ( in @ SY674 @ SV454 )
                  | ( in @ SY674 @ SV317 )
                  | ( in @ SY674 @ SV427 ) )
            | ~ ~ ( ~ ! [SY675: $i] :
                        ( ~ ( in @ SY675 @ SV317 )
                        | ( in @ SY675 @ SV454 ) )
                  | ~ ! [SY676: $i] :
                        ( ~ ( in @ SY676 @ SV427 )
                        | ( in @ SY676 @ SV454 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1798]) ).

thf(1866,plain,
    ! [SV428: $i,SV389: $i] :
      ( ( ( ~ ( subset @ SV389 @ SV428 )
          | ~ ( subset @ SV428 @ SV389 ) )
        = $true )
      | ( ( SV389 = SV428 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1799]) ).

thf(1867,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ( SX0 != SX1 )
          | ( subset @ SX0 @ SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[1800]) ).

thf(1868,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ( SX0 != SX1 )
          | ( subset @ SX1 @ SX0 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[1801]) ).

thf(1869,plain,
    ! [SV429: $i,SV455: $i,SV318: $i] :
      ( ( ~ ( in @ SV318 @ SV455 )
        | ~ ( in @ SV429 @ SV455 )
        | ( subset @ ( unordered_pair @ SV318 @ SV429 ) @ SV455 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1802]) ).

thf(1870,plain,
    ! [SV318: $i] :
      ( ( ~ ! [SY536: $i,SY537: $i] :
              ( ~ ( subset @ ( unordered_pair @ SV318 @ SY536 ) @ SY537 )
              | ( in @ SV318 @ SY537 ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[1803]) ).

thf(1871,plain,
    ! [SV318: $i] :
      ( ( ~ ! [SY538: $i,SY539: $i] :
              ( ~ ( subset @ ( unordered_pair @ SV318 @ SY538 ) @ SY539 )
              | ( in @ SY538 @ SY539 ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[1803]) ).

thf(1872,plain,
    ! [SV319: $i,SV430: $i,SV456: $i] :
      ( ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK20_D @ SV456 @ SV430 @ SV319 ) @ SV456 )
                      | ( ( sK20_D @ SV456 @ SV430 @ SV319 )
                       != SV319 ) )
                  | ~ ( ~ ( in @ ( sK20_D @ SV456 @ SV430 @ SV319 ) @ SV456 )
                      | ( ( sK20_D @ SV456 @ SV430 @ SV319 )
                       != SV430 ) ) )
            | ~ ( ( in @ ( sK20_D @ SV456 @ SV430 @ SV319 ) @ SV456 )
                | ( ( sK20_D @ SV456 @ SV430 @ SV319 )
                  = SV319 )
                | ( ( sK20_D @ SV456 @ SV430 @ SV319 )
                  = SV430 ) ) )
        | ( SV456
          = ( unordered_pair @ SV319 @ SV430 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1804]) ).

thf(1873,plain,
    ! [SV431: $i,SV319: $i,SV457: $i] :
      ( ( ( SV457
         != ( unordered_pair @ SV319 @ SV431 ) )
        | ~ ( ~ ! [SY677: $i] :
                  ( ~ ( in @ SY677 @ SV457 )
                  | ( SY677 = SV319 )
                  | ( SY677 = SV431 ) )
            | ~ ~ ( ~ ! [SY678: $i] :
                        ( ( SY678 != SV319 )
                        | ( in @ SY678 @ SV457 ) )
                  | ~ ! [SY679: $i] :
                        ( ( SY679 != SV431 )
                        | ( in @ SY679 @ SV457 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1805]) ).

thf(1874,plain,
    ! [SV391: $i] :
      ( ( ( SV391 = empty_set )
        = $false )
      | ( ( ! [SY613: $i] :
              ~ ( in @ SY613 @ SV391 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1807]) ).

thf(1875,plain,
    ( ( in @ sK1_A @ sK3_SY197 )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[1808]) ).

thf(1876,plain,
    ( ( in @ sK2_SY194 @ sK4_SY199 )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[1809]) ).

thf(1877,plain,
    ! [SV320: $i,SV432: $i,SV458: $i] :
      ( ( ~ ( ~ ( ~ ( in @ ( sK8_D @ SV458 @ SV432 @ SV320 ) @ SV320 )
                | ( in @ ( sK8_D @ SV458 @ SV432 @ SV320 ) @ SV432 )
                | ~ ( in @ ( sK8_D @ SV458 @ SV432 @ SV320 ) @ SV458 ) )
            | ~ ~ ( ~ ( ( in @ ( sK8_D @ SV458 @ SV432 @ SV320 ) @ SV320 )
                      | ( in @ ( sK8_D @ SV458 @ SV432 @ SV320 ) @ SV458 ) )
                  | ~ ( ~ ( in @ ( sK8_D @ SV458 @ SV432 @ SV320 ) @ SV432 )
                      | ( in @ ( sK8_D @ SV458 @ SV432 @ SV320 ) @ SV458 ) ) ) )
        | ( SV458
          = ( set_difference @ SV320 @ SV432 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1810]) ).

thf(1878,plain,
    ! [SV433: $i,SV320: $i,SV459: $i] :
      ( ( ( SV459
         != ( set_difference @ SV320 @ SV433 ) )
        | ~ ( ~ ! [SY680: $i] :
                  ( ~ ( in @ SY680 @ SV320 )
                  | ( in @ SY680 @ SV433 )
                  | ( in @ SY680 @ SV459 ) )
            | ~ ~ ( ~ ! [SY681: $i] :
                        ( ~ ( in @ SY681 @ SV459 )
                        | ( in @ SY681 @ SV320 ) )
                  | ~ ! [SY682: $i] :
                        ( ~ ( in @ SY682 @ SV459 )
                        | ~ ( in @ SY682 @ SV433 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1811]) ).

thf(1879,plain,
    ! [SV434: $i,SV392: $i] :
      ( ( ( ( ( set_difference @ SV392 @ SV434 )
           != empty_set ) )
        = $true )
      | ( ( subset @ SV392 @ SV434 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1812]) ).

thf(1880,plain,
    ! [SV435: $i,SV393: $i] :
      ( ( ( ~ ( subset @ SV393 @ SV435 ) )
        = $true )
      | ( ( ( set_difference @ SV393 @ SV435 )
          = empty_set )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1813]) ).

thf(1881,plain,
    ! [SV436: $i,SV394: $i] :
      ( ( ( disjoint @ SV394 @ SV436 )
        = $true )
      | ( ( in @ ( sK24_C @ SV436 @ SV394 ) @ ( set_intersection2 @ SV394 @ SV436 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1814]) ).

thf(1882,plain,
    ! [SV437: $i,SV395: $i] :
      ( ( ( ! [SY658: $i] :
              ~ ( in @ SY658 @ ( set_intersection2 @ SV395 @ SV437 ) ) )
        = $true )
      | ( ( ~ ( disjoint @ SV395 @ SV437 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1815]) ).

thf(1883,plain,
    ! [SV438: $i,SV396: $i] :
      ( ( ( ~ ( subset @ SV396 @ ( singleton @ SV438 ) ) )
        = $true )
      | ( ( ( SV396 = empty_set )
          | ( SV396
            = ( singleton @ SV438 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1816]) ).

thf(1884,plain,
    ( ( ! [SX0: $i] :
          ( ( SX0 != empty_set )
          | ! [SX1: $i] : ( subset @ SX0 @ ( singleton @ SX1 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[1817]) ).

thf(1885,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ( SX0
           != ( singleton @ SX1 ) )
          | ( subset @ SX0 @ ( singleton @ SX1 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[1818]) ).

thf(1886,plain,
    ! [SV439: $i,SV397: $i] :
      ( ( ( ~ ( subset @ SV397 @ ( singleton @ SV439 ) ) )
        = $true )
      | ( ( ( SV397 = empty_set )
          | ( SV397
            = ( singleton @ SV439 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1819]) ).

thf(1887,plain,
    ( ( ! [SX0: $i] :
          ( ( SX0 != empty_set )
          | ! [SX1: $i] : ( subset @ SX0 @ ( singleton @ SX1 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[1820]) ).

thf(1888,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ( SX0
           != ( singleton @ SX1 ) )
          | ( subset @ SX0 @ ( singleton @ SX1 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[1821]) ).

thf(1889,plain,
    ! [SV440: $i,SV398: $i] :
      ( ( ( ~ ( in @ SV398 @ SV440 ) )
        = $true )
      | ( ( subset @ ( singleton @ SV398 ) @ SV440 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1822]) ).

thf(1890,plain,
    ! [SV441: $i,SV399: $i] :
      ( ( ( ~ ( subset @ ( singleton @ SV399 ) @ SV441 ) )
        = $true )
      | ( ( in @ SV399 @ SV441 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1823]) ).

thf(1891,plain,
    ! [SV442: $i,SV400: $i] :
      ( ( ( ( ( set_difference @ SV400 @ SV442 )
           != empty_set ) )
        = $true )
      | ( ( subset @ SV400 @ SV442 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1824]) ).

thf(1892,plain,
    ! [SV443: $i,SV401: $i] :
      ( ( ( ~ ( subset @ SV401 @ SV443 ) )
        = $true )
      | ( ( ( set_difference @ SV401 @ SV443 )
          = empty_set )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1825]) ).

thf(1893,plain,
    ! [SV444: $i,SV402: $i] :
      ( ( ( disjoint @ SV402 @ SV444 )
        = $true )
      | ( ( ~ ( ~ ( in @ ( sK25_C @ SV444 @ SV402 ) @ SV402 )
              | ~ ( in @ ( sK25_C @ SV444 @ SV402 ) @ SV444 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1826]) ).

thf(1894,plain,
    ! [SV445: $i,SV403: $i] :
      ( ( ( ! [SY659: $i] :
              ( ~ ( in @ SY659 @ SV403 )
              | ~ ( in @ SY659 @ SV445 ) ) )
        = $true )
      | ( ( ~ ( disjoint @ SV403 @ SV445 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1827]) ).

thf(1895,plain,
    ! [SV460: $i,SV446: $i,SV321: $i] :
      ( ( ~ ( ~ ( ! [SY683: $i,SY684: $i] :
                    ( ~ ( in @ SY683 @ SV321 )
                    | ~ ( in @ SY684 @ SV446 )
                    | ( ( sK16_D @ SV460 @ SV446 @ SV321 )
                     != ( ordered_pair @ SY683 @ SY684 ) ) )
                | ~ ( in @ ( sK16_D @ SV460 @ SV446 @ SV321 ) @ SV460 ) )
            | ~ ( ~ ( ~ ~ ( ~ ( in @ ( sK17_SY205 @ SV460 @ SV446 @ SV321 ) @ SV321 )
                          | ~ ( in @ ( sK18_SY207 @ SV460 @ SV446 @ SV321 ) @ SV446 ) )
                    | ( ( sK16_D @ SV460 @ SV446 @ SV321 )
                     != ( ordered_pair @ ( sK17_SY205 @ SV460 @ SV446 @ SV321 ) @ ( sK18_SY207 @ SV460 @ SV446 @ SV321 ) ) ) )
                | ( in @ ( sK16_D @ SV460 @ SV446 @ SV321 ) @ SV460 ) ) )
        | ( SV460
          = ( cartesian_product2 @ SV321 @ SV446 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1828]) ).

thf(1896,plain,
    ! [SV447: $i,SV321: $i,SV461: $i] :
      ( ( ( SV461
         != ( cartesian_product2 @ SV321 @ SV447 ) )
        | ~ ( ~ ! [SY685: $i] :
                  ( ! [SY665: $i,SY666: $i] :
                      ( ~ ( in @ SY665 @ SV321 )
                      | ~ ( in @ SY666 @ SV447 )
                      | ( SY685
                       != ( ordered_pair @ SY665 @ SY666 ) ) )
                  | ( in @ SY685 @ SV461 ) )
            | ~ ! [SY688: $i] :
                  ( ~ ( in @ SY688 @ SV461 )
                  | ~ ( ~ ~ ( ~ ( in @ ( sK14_E @ SY688 @ SV461 @ SV447 @ SV321 ) @ SV321 )
                            | ~ ( in @ ( sK15_SY202 @ SY688 @ SV461 @ SV447 @ SV321 ) @ SV447 ) )
                      | ( SY688
                       != ( ordered_pair @ ( sK14_E @ SY688 @ SV461 @ SV447 @ SV321 ) @ ( sK15_SY202 @ SY688 @ SV461 @ SV447 @ SV321 ) ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1829]) ).

thf(1897,plain,
    ! [SV370: $i,SV362: $i,SV327: $i,SV266: $i] :
      ( ( ( ( unordered_pair @ SV266 @ SV327 )
          = ( unordered_pair @ SV362 @ SV370 ) )
        = $false )
      | ( ( SV266 = SV362 )
        = $true )
      | ( ( SV266 = SV370 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1831]) ).

thf(1898,plain,
    ! [SV330: $i,SV363: $i,SV269: $i] :
      ( ( ( subset @ SV269 @ SV363 )
        = $false )
      | ( ( subset @ SV269 @ SV330 )
        = $false )
      | ( ( subset @ SV269 @ ( set_intersection2 @ SV330 @ SV363 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1832]) ).

thf(1899,plain,
    ! [SV270: $i,SV364: $i,SV331: $i] :
      ( ( ( subset @ SV331 @ SV364 )
        = $false )
      | ( ( subset @ SV270 @ SV331 )
        = $false )
      | ( ( subset @ SV270 @ SV364 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1833]) ).

thf(1900,plain,
    ! [SV365: $i,SV342: $i,SV283: $i] :
      ( ( ( subset @ SV283 @ SV342 )
        = $false )
      | ( ( disjoint @ SV342 @ SV365 )
        = $false )
      | ( ( disjoint @ SV283 @ SV365 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1834]) ).

thf(1901,plain,
    ! [SV287: $i,SV345: $i,SV366: $i] :
      ( ( ( subset @ SV366 @ SV345 )
        = $false )
      | ( ( subset @ SV287 @ SV345 )
        = $false )
      | ( ( subset @ ( set_union2 @ SV287 @ SV366 ) @ SV345 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1835]) ).

thf(1902,plain,
    ! [SV372: $i,SV407: $i] :
      ( ( ( ~ ( ! [SY628: $i] :
                  ( ~ ( in @ ( sK10_C @ SV407 @ SV372 ) @ SY628 )
                  | ~ ( in @ SY628 @ SV372 ) )
              | ~ ( in @ ( sK10_C @ SV407 @ SV372 ) @ SV407 ) )
          | ~ ( ~ ( ~ ( in @ ( sK10_C @ SV407 @ SV372 ) @ ( sK11_SY201 @ SV407 @ SV372 ) )
                  | ~ ( in @ ( sK11_SY201 @ SV407 @ SV372 ) @ SV372 ) )
              | ( in @ ( sK10_C @ SV407 @ SV372 ) @ SV407 ) ) )
        = $false )
      | ( ( SV407
          = ( union @ SV372 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1837]) ).

thf(1903,plain,
    ! [SV373: $i,SV408: $i] :
      ( ( ( SV408
          = ( union @ SV373 ) )
        = $false )
      | ( ( ~ ( ~ ! [SY629: $i] :
                    ( ! [SY590: $i] :
                        ( ~ ( in @ SY629 @ SY590 )
                        | ~ ( in @ SY590 @ SV373 ) )
                    | ( in @ SY629 @ SV408 ) )
              | ~ ! [SY631: $i] :
                    ( ~ ( in @ SY631 @ SV408 )
                    | ~ ( ~ ( in @ SY631 @ ( sK9_D @ SY631 @ SV408 @ SV373 ) )
                        | ~ ( in @ ( sK9_D @ SY631 @ SV408 @ SV373 ) @ SV373 ) ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1838]) ).

thf(1904,plain,
    ! [SV409: $i,SV374: $i] :
      ( ( ( ( set_difference @ SV374 @ ( singleton @ SV409 ) )
          = SV374 )
        = $false )
      | ( ( ~ ( in @ SV409 @ SV374 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1839]) ).

thf(1905,plain,
    ! [SV376: $i,SV411: $i] :
      ( ( ( ~ ( in @ ( sK13_C @ SV411 @ SV376 ) @ SV376 )
          | ~ ~ ( in @ ( sK13_C @ SV411 @ SV376 ) @ SV411 ) )
        = $false )
      | ( ( subset @ SV376 @ SV411 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1841]) ).

thf(1906,plain,
    ! [SV412: $i,SV377: $i] :
      ( ( ( subset @ SV377 @ SV412 )
        = $false )
      | ( ( ! [SY632: $i] :
              ( ~ ( in @ SY632 @ SV377 )
              | ( in @ SY632 @ SV412 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1842]) ).

thf(1907,plain,
    ! [SV378: $i,SV413: $i] :
      ( ( ( ~ ( ( ( sK23_C @ SV413 @ SV378 )
               != SV378 )
              | ~ ( in @ ( sK23_C @ SV413 @ SV378 ) @ SV413 ) )
          | ~ ( ( ( sK23_C @ SV413 @ SV378 )
                = SV378 )
              | ( in @ ( sK23_C @ SV413 @ SV378 ) @ SV413 ) ) )
        = $false )
      | ( ( SV413
          = ( singleton @ SV378 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1843]) ).

thf(1908,plain,
    ! [SV379: $i,SV414: $i] :
      ( ( ( SV414
          = ( singleton @ SV379 ) )
        = $false )
      | ( ( ~ ( ~ ! [SY633: $i] :
                    ( ( SY633 != SV379 )
                    | ( in @ SY633 @ SV414 ) )
              | ~ ! [SY634: $i] :
                    ( ~ ( in @ SY634 @ SV414 )
                    | ( SY634 = SV379 ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1844]) ).

thf(1909,plain,
    ! [SV415: $i,SV380: $i] :
      ( ( ( ( set_intersection2 @ SV380 @ SV415 )
          = empty_set )
        = $false )
      | ( ( disjoint @ SV380 @ SV415 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1845]) ).

thf(1910,plain,
    ! [SV416: $i,SV381: $i] :
      ( ( ( disjoint @ SV381 @ SV416 )
        = $false )
      | ( ( ( set_intersection2 @ SV381 @ SV416 )
          = empty_set )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1846]) ).

thf(1911,plain,
    ! [SV417: $i,SV382: $i] :
      ( ( ( SV382 = SV417 )
        = $true )
      | ( ( ~ ( subset @ SV382 @ SV417 ) )
        = $true )
      | ( ( proper_subset @ SV382 @ SV417 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1847]) ).

thf(1912,plain,
    ! [SV462: $i] :
      ( ( ! [SY689: $i] :
            ( ~ ( proper_subset @ SV462 @ SY689 )
            | ( SV462 != SY689 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1848]) ).

thf(1913,plain,
    ! [SV463: $i] :
      ( ( ! [SY690: $i] :
            ( ~ ( proper_subset @ SV463 @ SY690 )
            | ( subset @ SV463 @ SY690 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1849]) ).

thf(1914,plain,
    ! [SV464: $i,SV359: $i,SV448: $i,SV313: $i] :
      ( ( ~ ( in @ SV313 @ SV448 )
        | ~ ( in @ SV359 @ SV464 )
        | ( in @ ( ordered_pair @ SV313 @ SV359 ) @ ( cartesian_product2 @ SV448 @ SV464 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1850]) ).

thf(1915,plain,
    ! [SV359: $i,SV313: $i] :
      ( ( ~ ! [SY577: $i] :
              ( ! [SY578: $i] :
                  ~ ( in @ ( ordered_pair @ SV313 @ SV359 ) @ ( cartesian_product2 @ SY577 @ SY578 ) )
              | ( in @ SV313 @ SY577 ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[1851]) ).

thf(1916,plain,
    ! [SV359: $i,SV313: $i] :
      ( ( ~ ! [SY579: $i,SY580: $i] :
              ( ~ ( in @ ( ordered_pair @ SV313 @ SV359 ) @ ( cartesian_product2 @ SY579 @ SY580 ) )
              | ( in @ SV359 @ SY580 ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[1851]) ).

thf(1917,plain,
    ! [SV418: $i,SV383: $i] :
      ( ( ( in @ SV383 @ SV418 )
        = $false )
      | ( ( subset @ ( singleton @ SV383 ) @ SV418 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1852]) ).

thf(1918,plain,
    ! [SV419: $i,SV384: $i] :
      ( ( ( subset @ ( singleton @ SV384 ) @ SV419 )
        = $false )
      | ( ( in @ SV384 @ SV419 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1853]) ).

thf(1919,plain,
    ! [SV314: $i,SV420: $i,SV449: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ ( sK12_D @ SV449 @ SV420 @ SV314 ) @ SV314 )
                  | ~ ( in @ ( sK12_D @ SV449 @ SV420 @ SV314 ) @ SV420 )
                  | ~ ( in @ ( sK12_D @ SV449 @ SV420 @ SV314 ) @ SV449 ) )
              | ~ ~ ( ~ ( ( in @ ( sK12_D @ SV449 @ SV420 @ SV314 ) @ SV314 )
                        | ( in @ ( sK12_D @ SV449 @ SV420 @ SV314 ) @ SV449 ) )
                    | ~ ( ( in @ ( sK12_D @ SV449 @ SV420 @ SV314 ) @ SV420 )
                        | ( in @ ( sK12_D @ SV449 @ SV420 @ SV314 ) @ SV449 ) ) ) ) )
        = $true )
      | ( ( SV449
          = ( set_intersection2 @ SV314 @ SV420 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1854]) ).

thf(1920,plain,
    ! [SV421: $i,SV314: $i,SV450: $i] :
      ( ( ( ( SV450
           != ( set_intersection2 @ SV314 @ SV421 ) ) )
        = $true )
      | ( ( ~ ( ~ ! [SY669: $i] :
                    ( ~ ( in @ SY669 @ SV314 )
                    | ~ ( in @ SY669 @ SV421 )
                    | ( in @ SY669 @ SV450 ) )
              | ~ ~ ( ~ ! [SY670: $i] :
                          ( ~ ( in @ SY670 @ SV450 )
                          | ( in @ SY670 @ SV314 ) )
                    | ~ ! [SY671: $i] :
                          ( ~ ( in @ SY671 @ SV450 )
                          | ( in @ SY671 @ SV421 ) ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1855]) ).

thf(1921,plain,
    ! [SV385: $i,SV422: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK21_C @ SV422 @ SV385 ) @ SV422 )
              | ~ ( subset @ ( sK21_C @ SV422 @ SV385 ) @ SV385 ) )
          | ~ ( ( in @ ( sK21_C @ SV422 @ SV385 ) @ SV422 )
              | ( subset @ ( sK21_C @ SV422 @ SV385 ) @ SV385 ) ) )
        = $false )
      | ( ( SV422
          = ( powerset @ SV385 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1856]) ).

thf(1922,plain,
    ! [SV386: $i,SV423: $i] :
      ( ( ( SV423
          = ( powerset @ SV386 ) )
        = $false )
      | ( ( ~ ( ~ ! [SY640: $i] :
                    ( ~ ( in @ SY640 @ SV423 )
                    | ( subset @ SY640 @ SV386 ) )
              | ~ ! [SY641: $i] :
                    ( ~ ( subset @ SY641 @ SV386 )
                    | ( in @ SY641 @ SV423 ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1857]) ).

thf(1923,plain,
    ! [SV315: $i,SV360: $i] :
      ( ( ( ~ ( in @ ( sK5_C @ SV360 @ SV315 ) @ SV315 ) )
        = $true )
      | ( ( ~ ( in @ ( sK5_C @ SV360 @ SV315 ) @ SV360 ) )
        = $true )
      | ( ( SV315 = SV360 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1858]) ).

thf(1924,plain,
    ! [SV315: $i,SV360: $i] :
      ( ( ( in @ ( sK5_C @ SV360 @ SV315 ) @ SV315 )
        = $true )
      | ( ( in @ ( sK5_C @ SV360 @ SV315 ) @ SV360 )
        = $true )
      | ( ( SV315 = SV360 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1859]) ).

thf(1925,plain,
    ! [SV424: $i,SV387: $i] :
      ( ( ( ( set_difference @ SV387 @ SV424 )
          = SV387 )
        = $false )
      | ( ( disjoint @ SV387 @ SV424 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1860]) ).

thf(1926,plain,
    ! [SV425: $i,SV388: $i] :
      ( ( ( disjoint @ SV388 @ SV425 )
        = $false )
      | ( ( ( set_difference @ SV388 @ SV425 )
          = SV388 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1861]) ).

thf(1927,plain,
    ! [SV451: $i,SV361: $i,SV316: $i] :
      ( ( ( ! [SY672: $i] :
              ( ( ordered_pair @ SV316 @ SV361 )
             != ( ordered_pair @ SV451 @ SY672 ) ) )
        = $true )
      | ( ( SV316 = SV451 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1862]) ).

thf(1928,plain,
    ! [SV465: $i,SV452: $i,SV361: $i,SV316: $i] :
      ( ( ( ( ordered_pair @ SV316 @ SV361 )
         != ( ordered_pair @ SV452 @ SV465 ) )
        | ( SV361 = SV465 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1863]) ).

thf(1929,plain,
    ! [SV317: $i,SV426: $i,SV453: $i] :
      ( ( ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK19_D @ SV453 @ SV426 @ SV317 ) @ SV453 )
                        | ~ ( in @ ( sK19_D @ SV453 @ SV426 @ SV317 ) @ SV317 ) )
                    | ~ ( ~ ( in @ ( sK19_D @ SV453 @ SV426 @ SV317 ) @ SV453 )
                        | ~ ( in @ ( sK19_D @ SV453 @ SV426 @ SV317 ) @ SV426 ) ) )
              | ~ ( ( in @ ( sK19_D @ SV453 @ SV426 @ SV317 ) @ SV453 )
                  | ( in @ ( sK19_D @ SV453 @ SV426 @ SV317 ) @ SV317 )
                  | ( in @ ( sK19_D @ SV453 @ SV426 @ SV317 ) @ SV426 ) ) ) )
        = $true )
      | ( ( SV453
          = ( set_union2 @ SV317 @ SV426 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1864]) ).

thf(1930,plain,
    ! [SV427: $i,SV317: $i,SV454: $i] :
      ( ( ( ( SV454
           != ( set_union2 @ SV317 @ SV427 ) ) )
        = $true )
      | ( ( ~ ( ~ ! [SY674: $i] :
                    ( ~ ( in @ SY674 @ SV454 )
                    | ( in @ SY674 @ SV317 )
                    | ( in @ SY674 @ SV427 ) )
              | ~ ~ ( ~ ! [SY675: $i] :
                          ( ~ ( in @ SY675 @ SV317 )
                          | ( in @ SY675 @ SV454 ) )
                    | ~ ! [SY676: $i] :
                          ( ~ ( in @ SY676 @ SV427 )
                          | ( in @ SY676 @ SV454 ) ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1865]) ).

thf(1931,plain,
    ! [SV428: $i,SV389: $i] :
      ( ( ( ~ ( subset @ SV389 @ SV428 ) )
        = $true )
      | ( ( ~ ( subset @ SV428 @ SV389 ) )
        = $true )
      | ( ( SV389 = SV428 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1866]) ).

thf(1932,plain,
    ! [SV466: $i] :
      ( ( ! [SY691: $i] :
            ( ( SV466 != SY691 )
            | ( subset @ SV466 @ SY691 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1867]) ).

thf(1933,plain,
    ! [SV467: $i] :
      ( ( ! [SY692: $i] :
            ( ( SV467 != SY692 )
            | ( subset @ SY692 @ SV467 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1868]) ).

thf(1934,plain,
    ! [SV429: $i,SV455: $i,SV318: $i] :
      ( ( ( ~ ( in @ SV318 @ SV455 )
          | ~ ( in @ SV429 @ SV455 ) )
        = $true )
      | ( ( subset @ ( unordered_pair @ SV318 @ SV429 ) @ SV455 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1869]) ).

thf(1935,plain,
    ! [SV318: $i] :
      ( ( ! [SY536: $i,SY537: $i] :
            ( ~ ( subset @ ( unordered_pair @ SV318 @ SY536 ) @ SY537 )
            | ( in @ SV318 @ SY537 ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[1870]) ).

thf(1936,plain,
    ! [SV318: $i] :
      ( ( ! [SY538: $i,SY539: $i] :
            ( ~ ( subset @ ( unordered_pair @ SV318 @ SY538 ) @ SY539 )
            | ( in @ SY538 @ SY539 ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[1871]) ).

thf(1937,plain,
    ! [SV319: $i,SV430: $i,SV456: $i] :
      ( ( ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK20_D @ SV456 @ SV430 @ SV319 ) @ SV456 )
                        | ( ( sK20_D @ SV456 @ SV430 @ SV319 )
                         != SV319 ) )
                    | ~ ( ~ ( in @ ( sK20_D @ SV456 @ SV430 @ SV319 ) @ SV456 )
                        | ( ( sK20_D @ SV456 @ SV430 @ SV319 )
                         != SV430 ) ) )
              | ~ ( ( in @ ( sK20_D @ SV456 @ SV430 @ SV319 ) @ SV456 )
                  | ( ( sK20_D @ SV456 @ SV430 @ SV319 )
                    = SV319 )
                  | ( ( sK20_D @ SV456 @ SV430 @ SV319 )
                    = SV430 ) ) ) )
        = $true )
      | ( ( SV456
          = ( unordered_pair @ SV319 @ SV430 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1872]) ).

thf(1938,plain,
    ! [SV431: $i,SV319: $i,SV457: $i] :
      ( ( ( ( SV457
           != ( unordered_pair @ SV319 @ SV431 ) ) )
        = $true )
      | ( ( ~ ( ~ ! [SY677: $i] :
                    ( ~ ( in @ SY677 @ SV457 )
                    | ( SY677 = SV319 )
                    | ( SY677 = SV431 ) )
              | ~ ~ ( ~ ! [SY678: $i] :
                          ( ( SY678 != SV319 )
                          | ( in @ SY678 @ SV457 ) )
                    | ~ ! [SY679: $i] :
                          ( ( SY679 != SV431 )
                          | ( in @ SY679 @ SV457 ) ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1873]) ).

thf(1939,plain,
    ! [SV391: $i,SV468: $i] :
      ( ( ( ~ ( in @ SV468 @ SV391 ) )
        = $true )
      | ( ( SV391 = empty_set )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1874]) ).

thf(1940,plain,
    ! [SV320: $i,SV432: $i,SV458: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ ( sK8_D @ SV458 @ SV432 @ SV320 ) @ SV320 )
                  | ( in @ ( sK8_D @ SV458 @ SV432 @ SV320 ) @ SV432 )
                  | ~ ( in @ ( sK8_D @ SV458 @ SV432 @ SV320 ) @ SV458 ) )
              | ~ ~ ( ~ ( ( in @ ( sK8_D @ SV458 @ SV432 @ SV320 ) @ SV320 )
                        | ( in @ ( sK8_D @ SV458 @ SV432 @ SV320 ) @ SV458 ) )
                    | ~ ( ~ ( in @ ( sK8_D @ SV458 @ SV432 @ SV320 ) @ SV432 )
                        | ( in @ ( sK8_D @ SV458 @ SV432 @ SV320 ) @ SV458 ) ) ) ) )
        = $true )
      | ( ( SV458
          = ( set_difference @ SV320 @ SV432 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1877]) ).

thf(1941,plain,
    ! [SV433: $i,SV320: $i,SV459: $i] :
      ( ( ( ( SV459
           != ( set_difference @ SV320 @ SV433 ) ) )
        = $true )
      | ( ( ~ ( ~ ! [SY680: $i] :
                    ( ~ ( in @ SY680 @ SV320 )
                    | ( in @ SY680 @ SV433 )
                    | ( in @ SY680 @ SV459 ) )
              | ~ ~ ( ~ ! [SY681: $i] :
                          ( ~ ( in @ SY681 @ SV459 )
                          | ( in @ SY681 @ SV320 ) )
                    | ~ ! [SY682: $i] :
                          ( ~ ( in @ SY682 @ SV459 )
                          | ~ ( in @ SY682 @ SV433 ) ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1878]) ).

thf(1942,plain,
    ! [SV434: $i,SV392: $i] :
      ( ( ( ( set_difference @ SV392 @ SV434 )
          = empty_set )
        = $false )
      | ( ( subset @ SV392 @ SV434 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1879]) ).

thf(1943,plain,
    ! [SV435: $i,SV393: $i] :
      ( ( ( subset @ SV393 @ SV435 )
        = $false )
      | ( ( ( set_difference @ SV393 @ SV435 )
          = empty_set )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1880]) ).

thf(1944,plain,
    ! [SV437: $i,SV395: $i,SV469: $i] :
      ( ( ( ~ ( in @ SV469 @ ( set_intersection2 @ SV395 @ SV437 ) ) )
        = $true )
      | ( ( ~ ( disjoint @ SV395 @ SV437 ) )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[1882]) ).

thf(1945,plain,
    ! [SV438: $i,SV396: $i] :
      ( ( ( subset @ SV396 @ ( singleton @ SV438 ) )
        = $false )
      | ( ( ( SV396 = empty_set )
          | ( SV396
            = ( singleton @ SV438 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1883]) ).

thf(1946,plain,
    ! [SV470: $i] :
      ( ( ( SV470 != empty_set )
        | ! [SY693: $i] : ( subset @ SV470 @ ( singleton @ SY693 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1884]) ).

thf(1947,plain,
    ! [SV471: $i] :
      ( ( ! [SY694: $i] :
            ( ( SV471
             != ( singleton @ SY694 ) )
            | ( subset @ SV471 @ ( singleton @ SY694 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1885]) ).

thf(1948,plain,
    ! [SV439: $i,SV397: $i] :
      ( ( ( subset @ SV397 @ ( singleton @ SV439 ) )
        = $false )
      | ( ( ( SV397 = empty_set )
          | ( SV397
            = ( singleton @ SV439 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1886]) ).

thf(1949,plain,
    ! [SV472: $i] :
      ( ( ( SV472 != empty_set )
        | ! [SY695: $i] : ( subset @ SV472 @ ( singleton @ SY695 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1887]) ).

thf(1950,plain,
    ! [SV473: $i] :
      ( ( ! [SY696: $i] :
            ( ( SV473
             != ( singleton @ SY696 ) )
            | ( subset @ SV473 @ ( singleton @ SY696 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1888]) ).

thf(1951,plain,
    ! [SV440: $i,SV398: $i] :
      ( ( ( in @ SV398 @ SV440 )
        = $false )
      | ( ( subset @ ( singleton @ SV398 ) @ SV440 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1889]) ).

thf(1952,plain,
    ! [SV441: $i,SV399: $i] :
      ( ( ( subset @ ( singleton @ SV399 ) @ SV441 )
        = $false )
      | ( ( in @ SV399 @ SV441 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1890]) ).

thf(1953,plain,
    ! [SV442: $i,SV400: $i] :
      ( ( ( ( set_difference @ SV400 @ SV442 )
          = empty_set )
        = $false )
      | ( ( subset @ SV400 @ SV442 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1891]) ).

thf(1954,plain,
    ! [SV443: $i,SV401: $i] :
      ( ( ( subset @ SV401 @ SV443 )
        = $false )
      | ( ( ( set_difference @ SV401 @ SV443 )
          = empty_set )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1892]) ).

thf(1955,plain,
    ! [SV402: $i,SV444: $i] :
      ( ( ( ~ ( in @ ( sK25_C @ SV444 @ SV402 ) @ SV402 )
          | ~ ( in @ ( sK25_C @ SV444 @ SV402 ) @ SV444 ) )
        = $false )
      | ( ( disjoint @ SV402 @ SV444 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1893]) ).

thf(1956,plain,
    ! [SV445: $i,SV403: $i,SV474: $i] :
      ( ( ( ~ ( in @ SV474 @ SV403 )
          | ~ ( in @ SV474 @ SV445 ) )
        = $true )
      | ( ( ~ ( disjoint @ SV403 @ SV445 ) )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[1894]) ).

thf(1957,plain,
    ! [SV460: $i,SV446: $i,SV321: $i] :
      ( ( ( ~ ( ~ ( ! [SY683: $i,SY684: $i] :
                      ( ~ ( in @ SY683 @ SV321 )
                      | ~ ( in @ SY684 @ SV446 )
                      | ( ( sK16_D @ SV460 @ SV446 @ SV321 )
                       != ( ordered_pair @ SY683 @ SY684 ) ) )
                  | ~ ( in @ ( sK16_D @ SV460 @ SV446 @ SV321 ) @ SV460 ) )
              | ~ ( ~ ( ~ ~ ( ~ ( in @ ( sK17_SY205 @ SV460 @ SV446 @ SV321 ) @ SV321 )
                            | ~ ( in @ ( sK18_SY207 @ SV460 @ SV446 @ SV321 ) @ SV446 ) )
                      | ( ( sK16_D @ SV460 @ SV446 @ SV321 )
                       != ( ordered_pair @ ( sK17_SY205 @ SV460 @ SV446 @ SV321 ) @ ( sK18_SY207 @ SV460 @ SV446 @ SV321 ) ) ) )
                  | ( in @ ( sK16_D @ SV460 @ SV446 @ SV321 ) @ SV460 ) ) ) )
        = $true )
      | ( ( SV460
          = ( cartesian_product2 @ SV321 @ SV446 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1895]) ).

thf(1958,plain,
    ! [SV447: $i,SV321: $i,SV461: $i] :
      ( ( ( ( SV461
           != ( cartesian_product2 @ SV321 @ SV447 ) ) )
        = $true )
      | ( ( ~ ( ~ ! [SY685: $i] :
                    ( ! [SY665: $i,SY666: $i] :
                        ( ~ ( in @ SY665 @ SV321 )
                        | ~ ( in @ SY666 @ SV447 )
                        | ( SY685
                         != ( ordered_pair @ SY665 @ SY666 ) ) )
                    | ( in @ SY685 @ SV461 ) )
              | ~ ! [SY688: $i] :
                    ( ~ ( in @ SY688 @ SV461 )
                    | ~ ( ~ ~ ( ~ ( in @ ( sK14_E @ SY688 @ SV461 @ SV447 @ SV321 ) @ SV321 )
                              | ~ ( in @ ( sK15_SY202 @ SY688 @ SV461 @ SV447 @ SV321 ) @ SV447 ) )
                        | ( SY688
                         != ( ordered_pair @ ( sK14_E @ SY688 @ SV461 @ SV447 @ SV321 ) @ ( sK15_SY202 @ SY688 @ SV461 @ SV447 @ SV321 ) ) ) ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1896]) ).

thf(1959,plain,
    ! [SV372: $i,SV407: $i] :
      ( ( ( ~ ( ! [SY628: $i] :
                  ( ~ ( in @ ( sK10_C @ SV407 @ SV372 ) @ SY628 )
                  | ~ ( in @ SY628 @ SV372 ) )
              | ~ ( in @ ( sK10_C @ SV407 @ SV372 ) @ SV407 ) ) )
        = $false )
      | ( ( SV407
          = ( union @ SV372 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1902]) ).

thf(1960,plain,
    ! [SV372: $i,SV407: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ ( sK10_C @ SV407 @ SV372 ) @ ( sK11_SY201 @ SV407 @ SV372 ) )
                  | ~ ( in @ ( sK11_SY201 @ SV407 @ SV372 ) @ SV372 ) )
              | ( in @ ( sK10_C @ SV407 @ SV372 ) @ SV407 ) ) )
        = $false )
      | ( ( SV407
          = ( union @ SV372 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1902]) ).

thf(1961,plain,
    ! [SV408: $i,SV373: $i] :
      ( ( ( ~ ! [SY629: $i] :
                ( ! [SY590: $i] :
                    ( ~ ( in @ SY629 @ SY590 )
                    | ~ ( in @ SY590 @ SV373 ) )
                | ( in @ SY629 @ SV408 ) )
          | ~ ! [SY631: $i] :
                ( ~ ( in @ SY631 @ SV408 )
                | ~ ( ~ ( in @ SY631 @ ( sK9_D @ SY631 @ SV408 @ SV373 ) )
                    | ~ ( in @ ( sK9_D @ SY631 @ SV408 @ SV373 ) @ SV373 ) ) ) )
        = $false )
      | ( ( SV408
          = ( union @ SV373 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1903]) ).

thf(1962,plain,
    ! [SV374: $i,SV409: $i] :
      ( ( ( in @ SV409 @ SV374 )
        = $false )
      | ( ( ( set_difference @ SV374 @ ( singleton @ SV409 ) )
          = SV374 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1904]) ).

thf(1963,plain,
    ! [SV376: $i,SV411: $i] :
      ( ( ( ~ ( in @ ( sK13_C @ SV411 @ SV376 ) @ SV376 ) )
        = $false )
      | ( ( subset @ SV376 @ SV411 )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1905]) ).

thf(1964,plain,
    ! [SV376: $i,SV411: $i] :
      ( ( ( ~ ~ ( in @ ( sK13_C @ SV411 @ SV376 ) @ SV411 ) )
        = $false )
      | ( ( subset @ SV376 @ SV411 )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1905]) ).

thf(1965,plain,
    ! [SV412: $i,SV377: $i,SV475: $i] :
      ( ( ( ~ ( in @ SV475 @ SV377 )
          | ( in @ SV475 @ SV412 ) )
        = $true )
      | ( ( subset @ SV377 @ SV412 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1906]) ).

thf(1966,plain,
    ! [SV378: $i,SV413: $i] :
      ( ( ( ~ ( ( ( sK23_C @ SV413 @ SV378 )
               != SV378 )
              | ~ ( in @ ( sK23_C @ SV413 @ SV378 ) @ SV413 ) ) )
        = $false )
      | ( ( SV413
          = ( singleton @ SV378 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1907]) ).

thf(1967,plain,
    ! [SV378: $i,SV413: $i] :
      ( ( ( ~ ( ( ( sK23_C @ SV413 @ SV378 )
                = SV378 )
              | ( in @ ( sK23_C @ SV413 @ SV378 ) @ SV413 ) ) )
        = $false )
      | ( ( SV413
          = ( singleton @ SV378 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1907]) ).

thf(1968,plain,
    ! [SV414: $i,SV379: $i] :
      ( ( ( ~ ! [SY633: $i] :
                ( ( SY633 != SV379 )
                | ( in @ SY633 @ SV414 ) )
          | ~ ! [SY634: $i] :
                ( ~ ( in @ SY634 @ SV414 )
                | ( SY634 = SV379 ) ) )
        = $false )
      | ( ( SV414
          = ( singleton @ SV379 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1908]) ).

thf(1969,plain,
    ! [SV417: $i,SV382: $i] :
      ( ( ( subset @ SV382 @ SV417 )
        = $false )
      | ( ( SV382 = SV417 )
        = $true )
      | ( ( proper_subset @ SV382 @ SV417 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1911]) ).

thf(1970,plain,
    ! [SV476: $i,SV462: $i] :
      ( ( ~ ( proper_subset @ SV462 @ SV476 )
        | ( SV462 != SV476 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1912]) ).

thf(1971,plain,
    ! [SV477: $i,SV463: $i] :
      ( ( ~ ( proper_subset @ SV463 @ SV477 )
        | ( subset @ SV463 @ SV477 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1913]) ).

thf(1972,plain,
    ! [SV464: $i,SV359: $i,SV448: $i,SV313: $i] :
      ( ( ( ~ ( in @ SV313 @ SV448 )
          | ~ ( in @ SV359 @ SV464 ) )
        = $true )
      | ( ( in @ ( ordered_pair @ SV313 @ SV359 ) @ ( cartesian_product2 @ SV448 @ SV464 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1914]) ).

thf(1973,plain,
    ! [SV359: $i,SV313: $i] :
      ( ( ! [SY577: $i] :
            ( ! [SY578: $i] :
                ~ ( in @ ( ordered_pair @ SV313 @ SV359 ) @ ( cartesian_product2 @ SY577 @ SY578 ) )
            | ( in @ SV313 @ SY577 ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[1915]) ).

thf(1974,plain,
    ! [SV359: $i,SV313: $i] :
      ( ( ! [SY579: $i,SY580: $i] :
            ( ~ ( in @ ( ordered_pair @ SV313 @ SV359 ) @ ( cartesian_product2 @ SY579 @ SY580 ) )
            | ( in @ SV359 @ SY580 ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[1916]) ).

thf(1975,plain,
    ! [SV314: $i,SV420: $i,SV449: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK12_D @ SV449 @ SV420 @ SV314 ) @ SV314 )
              | ~ ( in @ ( sK12_D @ SV449 @ SV420 @ SV314 ) @ SV420 )
              | ~ ( in @ ( sK12_D @ SV449 @ SV420 @ SV314 ) @ SV449 ) )
          | ~ ~ ( ~ ( ( in @ ( sK12_D @ SV449 @ SV420 @ SV314 ) @ SV314 )
                    | ( in @ ( sK12_D @ SV449 @ SV420 @ SV314 ) @ SV449 ) )
                | ~ ( ( in @ ( sK12_D @ SV449 @ SV420 @ SV314 ) @ SV420 )
                    | ( in @ ( sK12_D @ SV449 @ SV420 @ SV314 ) @ SV449 ) ) ) )
        = $false )
      | ( ( SV449
          = ( set_intersection2 @ SV314 @ SV420 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1919]) ).

thf(1976,plain,
    ! [SV421: $i,SV314: $i,SV450: $i] :
      ( ( ( SV450
          = ( set_intersection2 @ SV314 @ SV421 ) )
        = $false )
      | ( ( ~ ( ~ ! [SY669: $i] :
                    ( ~ ( in @ SY669 @ SV314 )
                    | ~ ( in @ SY669 @ SV421 )
                    | ( in @ SY669 @ SV450 ) )
              | ~ ~ ( ~ ! [SY670: $i] :
                          ( ~ ( in @ SY670 @ SV450 )
                          | ( in @ SY670 @ SV314 ) )
                    | ~ ! [SY671: $i] :
                          ( ~ ( in @ SY671 @ SV450 )
                          | ( in @ SY671 @ SV421 ) ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1920]) ).

thf(1977,plain,
    ! [SV385: $i,SV422: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK21_C @ SV422 @ SV385 ) @ SV422 )
              | ~ ( subset @ ( sK21_C @ SV422 @ SV385 ) @ SV385 ) ) )
        = $false )
      | ( ( SV422
          = ( powerset @ SV385 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1921]) ).

thf(1978,plain,
    ! [SV385: $i,SV422: $i] :
      ( ( ( ~ ( ( in @ ( sK21_C @ SV422 @ SV385 ) @ SV422 )
              | ( subset @ ( sK21_C @ SV422 @ SV385 ) @ SV385 ) ) )
        = $false )
      | ( ( SV422
          = ( powerset @ SV385 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1921]) ).

thf(1979,plain,
    ! [SV386: $i,SV423: $i] :
      ( ( ( ~ ! [SY640: $i] :
                ( ~ ( in @ SY640 @ SV423 )
                | ( subset @ SY640 @ SV386 ) )
          | ~ ! [SY641: $i] :
                ( ~ ( subset @ SY641 @ SV386 )
                | ( in @ SY641 @ SV423 ) ) )
        = $false )
      | ( ( SV423
          = ( powerset @ SV386 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1922]) ).

thf(1980,plain,
    ! [SV315: $i,SV360: $i] :
      ( ( ( in @ ( sK5_C @ SV360 @ SV315 ) @ SV315 )
        = $false )
      | ( ( ~ ( in @ ( sK5_C @ SV360 @ SV315 ) @ SV360 ) )
        = $true )
      | ( ( SV315 = SV360 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1923]) ).

thf(1981,plain,
    ! [SV478: $i,SV451: $i,SV361: $i,SV316: $i] :
      ( ( ( ( ( ordered_pair @ SV316 @ SV361 )
           != ( ordered_pair @ SV451 @ SV478 ) ) )
        = $true )
      | ( ( SV316 = SV451 )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[1927]) ).

thf(1982,plain,
    ! [SV465: $i,SV452: $i,SV361: $i,SV316: $i] :
      ( ( ( ( ( ordered_pair @ SV316 @ SV361 )
           != ( ordered_pair @ SV452 @ SV465 ) ) )
        = $true )
      | ( ( SV361 = SV465 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1928]) ).

thf(1983,plain,
    ! [SV317: $i,SV426: $i,SV453: $i] :
      ( ( ( ~ ~ ( ~ ( ~ ( in @ ( sK19_D @ SV453 @ SV426 @ SV317 ) @ SV453 )
                    | ~ ( in @ ( sK19_D @ SV453 @ SV426 @ SV317 ) @ SV317 ) )
                | ~ ( ~ ( in @ ( sK19_D @ SV453 @ SV426 @ SV317 ) @ SV453 )
                    | ~ ( in @ ( sK19_D @ SV453 @ SV426 @ SV317 ) @ SV426 ) ) )
          | ~ ( ( in @ ( sK19_D @ SV453 @ SV426 @ SV317 ) @ SV453 )
              | ( in @ ( sK19_D @ SV453 @ SV426 @ SV317 ) @ SV317 )
              | ( in @ ( sK19_D @ SV453 @ SV426 @ SV317 ) @ SV426 ) ) )
        = $false )
      | ( ( SV453
          = ( set_union2 @ SV317 @ SV426 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1929]) ).

thf(1984,plain,
    ! [SV427: $i,SV317: $i,SV454: $i] :
      ( ( ( SV454
          = ( set_union2 @ SV317 @ SV427 ) )
        = $false )
      | ( ( ~ ( ~ ! [SY674: $i] :
                    ( ~ ( in @ SY674 @ SV454 )
                    | ( in @ SY674 @ SV317 )
                    | ( in @ SY674 @ SV427 ) )
              | ~ ~ ( ~ ! [SY675: $i] :
                          ( ~ ( in @ SY675 @ SV317 )
                          | ( in @ SY675 @ SV454 ) )
                    | ~ ! [SY676: $i] :
                          ( ~ ( in @ SY676 @ SV427 )
                          | ( in @ SY676 @ SV454 ) ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1930]) ).

thf(1985,plain,
    ! [SV428: $i,SV389: $i] :
      ( ( ( subset @ SV389 @ SV428 )
        = $false )
      | ( ( ~ ( subset @ SV428 @ SV389 ) )
        = $true )
      | ( ( SV389 = SV428 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1931]) ).

thf(1986,plain,
    ! [SV479: $i,SV466: $i] :
      ( ( ( SV466 != SV479 )
        | ( subset @ SV466 @ SV479 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1932]) ).

thf(1987,plain,
    ! [SV480: $i,SV467: $i] :
      ( ( ( SV467 != SV480 )
        | ( subset @ SV480 @ SV467 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1933]) ).

thf(1988,plain,
    ! [SV429: $i,SV455: $i,SV318: $i] :
      ( ( ( ~ ( in @ SV318 @ SV455 ) )
        = $true )
      | ( ( ~ ( in @ SV429 @ SV455 ) )
        = $true )
      | ( ( subset @ ( unordered_pair @ SV318 @ SV429 ) @ SV455 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1934]) ).

thf(1989,plain,
    ! [SV481: $i,SV318: $i] :
      ( ( ! [SY697: $i] :
            ( ~ ( subset @ ( unordered_pair @ SV318 @ SV481 ) @ SY697 )
            | ( in @ SV318 @ SY697 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1935]) ).

thf(1990,plain,
    ! [SV482: $i,SV318: $i] :
      ( ( ! [SY698: $i] :
            ( ~ ( subset @ ( unordered_pair @ SV318 @ SV482 ) @ SY698 )
            | ( in @ SV482 @ SY698 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1936]) ).

thf(1991,plain,
    ! [SV319: $i,SV430: $i,SV456: $i] :
      ( ( ( ~ ~ ( ~ ( ~ ( in @ ( sK20_D @ SV456 @ SV430 @ SV319 ) @ SV456 )
                    | ( ( sK20_D @ SV456 @ SV430 @ SV319 )
                     != SV319 ) )
                | ~ ( ~ ( in @ ( sK20_D @ SV456 @ SV430 @ SV319 ) @ SV456 )
                    | ( ( sK20_D @ SV456 @ SV430 @ SV319 )
                     != SV430 ) ) )
          | ~ ( ( in @ ( sK20_D @ SV456 @ SV430 @ SV319 ) @ SV456 )
              | ( ( sK20_D @ SV456 @ SV430 @ SV319 )
                = SV319 )
              | ( ( sK20_D @ SV456 @ SV430 @ SV319 )
                = SV430 ) ) )
        = $false )
      | ( ( SV456
          = ( unordered_pair @ SV319 @ SV430 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1937]) ).

thf(1992,plain,
    ! [SV431: $i,SV319: $i,SV457: $i] :
      ( ( ( SV457
          = ( unordered_pair @ SV319 @ SV431 ) )
        = $false )
      | ( ( ~ ( ~ ! [SY677: $i] :
                    ( ~ ( in @ SY677 @ SV457 )
                    | ( SY677 = SV319 )
                    | ( SY677 = SV431 ) )
              | ~ ~ ( ~ ! [SY678: $i] :
                          ( ( SY678 != SV319 )
                          | ( in @ SY678 @ SV457 ) )
                    | ~ ! [SY679: $i] :
                          ( ( SY679 != SV431 )
                          | ( in @ SY679 @ SV457 ) ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1938]) ).

thf(1993,plain,
    ! [SV391: $i,SV468: $i] :
      ( ( ( in @ SV468 @ SV391 )
        = $false )
      | ( ( SV391 = empty_set )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1939]) ).

thf(1994,plain,
    ! [SV320: $i,SV432: $i,SV458: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK8_D @ SV458 @ SV432 @ SV320 ) @ SV320 )
              | ( in @ ( sK8_D @ SV458 @ SV432 @ SV320 ) @ SV432 )
              | ~ ( in @ ( sK8_D @ SV458 @ SV432 @ SV320 ) @ SV458 ) )
          | ~ ~ ( ~ ( ( in @ ( sK8_D @ SV458 @ SV432 @ SV320 ) @ SV320 )
                    | ( in @ ( sK8_D @ SV458 @ SV432 @ SV320 ) @ SV458 ) )
                | ~ ( ~ ( in @ ( sK8_D @ SV458 @ SV432 @ SV320 ) @ SV432 )
                    | ( in @ ( sK8_D @ SV458 @ SV432 @ SV320 ) @ SV458 ) ) ) )
        = $false )
      | ( ( SV458
          = ( set_difference @ SV320 @ SV432 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1940]) ).

thf(1995,plain,
    ! [SV433: $i,SV320: $i,SV459: $i] :
      ( ( ( SV459
          = ( set_difference @ SV320 @ SV433 ) )
        = $false )
      | ( ( ~ ( ~ ! [SY680: $i] :
                    ( ~ ( in @ SY680 @ SV320 )
                    | ( in @ SY680 @ SV433 )
                    | ( in @ SY680 @ SV459 ) )
              | ~ ~ ( ~ ! [SY681: $i] :
                          ( ~ ( in @ SY681 @ SV459 )
                          | ( in @ SY681 @ SV320 ) )
                    | ~ ! [SY682: $i] :
                          ( ~ ( in @ SY682 @ SV459 )
                          | ~ ( in @ SY682 @ SV433 ) ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1941]) ).

thf(1996,plain,
    ! [SV437: $i,SV395: $i,SV469: $i] :
      ( ( ( in @ SV469 @ ( set_intersection2 @ SV395 @ SV437 ) )
        = $false )
      | ( ( ~ ( disjoint @ SV395 @ SV437 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1944]) ).

thf(1997,plain,
    ! [SV438: $i,SV396: $i] :
      ( ( ( SV396 = empty_set )
        = $true )
      | ( ( SV396
          = ( singleton @ SV438 ) )
        = $true )
      | ( ( subset @ SV396 @ ( singleton @ SV438 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1945]) ).

thf(1998,plain,
    ! [SV470: $i] :
      ( ( ( ( SV470 != empty_set ) )
        = $true )
      | ( ( ! [SY693: $i] : ( subset @ SV470 @ ( singleton @ SY693 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1946]) ).

thf(1999,plain,
    ! [SV483: $i,SV471: $i] :
      ( ( ( SV471
         != ( singleton @ SV483 ) )
        | ( subset @ SV471 @ ( singleton @ SV483 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1947]) ).

thf(2000,plain,
    ! [SV439: $i,SV397: $i] :
      ( ( ( SV397 = empty_set )
        = $true )
      | ( ( SV397
          = ( singleton @ SV439 ) )
        = $true )
      | ( ( subset @ SV397 @ ( singleton @ SV439 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1948]) ).

thf(2001,plain,
    ! [SV472: $i] :
      ( ( ( ( SV472 != empty_set ) )
        = $true )
      | ( ( ! [SY695: $i] : ( subset @ SV472 @ ( singleton @ SY695 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1949]) ).

thf(2002,plain,
    ! [SV484: $i,SV473: $i] :
      ( ( ( SV473
         != ( singleton @ SV484 ) )
        | ( subset @ SV473 @ ( singleton @ SV484 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1950]) ).

thf(2003,plain,
    ! [SV402: $i,SV444: $i] :
      ( ( ( ~ ( in @ ( sK25_C @ SV444 @ SV402 ) @ SV402 ) )
        = $false )
      | ( ( disjoint @ SV402 @ SV444 )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1955]) ).

thf(2004,plain,
    ! [SV402: $i,SV444: $i] :
      ( ( ( ~ ( in @ ( sK25_C @ SV444 @ SV402 ) @ SV444 ) )
        = $false )
      | ( ( disjoint @ SV402 @ SV444 )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1955]) ).

thf(2005,plain,
    ! [SV445: $i,SV403: $i,SV474: $i] :
      ( ( ( ~ ( in @ SV474 @ SV403 ) )
        = $true )
      | ( ( ~ ( in @ SV474 @ SV445 ) )
        = $true )
      | ( ( ~ ( disjoint @ SV403 @ SV445 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1956]) ).

thf(2006,plain,
    ! [SV460: $i,SV446: $i,SV321: $i] :
      ( ( ( ~ ( ! [SY683: $i,SY684: $i] :
                  ( ~ ( in @ SY683 @ SV321 )
                  | ~ ( in @ SY684 @ SV446 )
                  | ( ( sK16_D @ SV460 @ SV446 @ SV321 )
                   != ( ordered_pair @ SY683 @ SY684 ) ) )
              | ~ ( in @ ( sK16_D @ SV460 @ SV446 @ SV321 ) @ SV460 ) )
          | ~ ( ~ ( ~ ~ ( ~ ( in @ ( sK17_SY205 @ SV460 @ SV446 @ SV321 ) @ SV321 )
                        | ~ ( in @ ( sK18_SY207 @ SV460 @ SV446 @ SV321 ) @ SV446 ) )
                  | ( ( sK16_D @ SV460 @ SV446 @ SV321 )
                   != ( ordered_pair @ ( sK17_SY205 @ SV460 @ SV446 @ SV321 ) @ ( sK18_SY207 @ SV460 @ SV446 @ SV321 ) ) ) )
              | ( in @ ( sK16_D @ SV460 @ SV446 @ SV321 ) @ SV460 ) ) )
        = $false )
      | ( ( SV460
          = ( cartesian_product2 @ SV321 @ SV446 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1957]) ).

thf(2007,plain,
    ! [SV447: $i,SV321: $i,SV461: $i] :
      ( ( ( SV461
          = ( cartesian_product2 @ SV321 @ SV447 ) )
        = $false )
      | ( ( ~ ( ~ ! [SY685: $i] :
                    ( ! [SY665: $i,SY666: $i] :
                        ( ~ ( in @ SY665 @ SV321 )
                        | ~ ( in @ SY666 @ SV447 )
                        | ( SY685
                         != ( ordered_pair @ SY665 @ SY666 ) ) )
                    | ( in @ SY685 @ SV461 ) )
              | ~ ! [SY688: $i] :
                    ( ~ ( in @ SY688 @ SV461 )
                    | ~ ( ~ ~ ( ~ ( in @ ( sK14_E @ SY688 @ SV461 @ SV447 @ SV321 ) @ SV321 )
                              | ~ ( in @ ( sK15_SY202 @ SY688 @ SV461 @ SV447 @ SV321 ) @ SV447 ) )
                        | ( SY688
                         != ( ordered_pair @ ( sK14_E @ SY688 @ SV461 @ SV447 @ SV321 ) @ ( sK15_SY202 @ SY688 @ SV461 @ SV447 @ SV321 ) ) ) ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1958]) ).

thf(2008,plain,
    ! [SV372: $i,SV407: $i] :
      ( ( ( ! [SY628: $i] :
              ( ~ ( in @ ( sK10_C @ SV407 @ SV372 ) @ SY628 )
              | ~ ( in @ SY628 @ SV372 ) )
          | ~ ( in @ ( sK10_C @ SV407 @ SV372 ) @ SV407 ) )
        = $true )
      | ( ( SV407
          = ( union @ SV372 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1959]) ).

thf(2009,plain,
    ! [SV372: $i,SV407: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK10_C @ SV407 @ SV372 ) @ ( sK11_SY201 @ SV407 @ SV372 ) )
              | ~ ( in @ ( sK11_SY201 @ SV407 @ SV372 ) @ SV372 ) )
          | ( in @ ( sK10_C @ SV407 @ SV372 ) @ SV407 ) )
        = $true )
      | ( ( SV407
          = ( union @ SV372 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1960]) ).

thf(2010,plain,
    ! [SV408: $i,SV373: $i] :
      ( ( ( ~ ! [SY629: $i] :
                ( ! [SY590: $i] :
                    ( ~ ( in @ SY629 @ SY590 )
                    | ~ ( in @ SY590 @ SV373 ) )
                | ( in @ SY629 @ SV408 ) ) )
        = $false )
      | ( ( SV408
          = ( union @ SV373 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1961]) ).

thf(2011,plain,
    ! [SV373: $i,SV408: $i] :
      ( ( ( ~ ! [SY631: $i] :
                ( ~ ( in @ SY631 @ SV408 )
                | ~ ( ~ ( in @ SY631 @ ( sK9_D @ SY631 @ SV408 @ SV373 ) )
                    | ~ ( in @ ( sK9_D @ SY631 @ SV408 @ SV373 ) @ SV373 ) ) ) )
        = $false )
      | ( ( SV408
          = ( union @ SV373 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1961]) ).

thf(2012,plain,
    ! [SV376: $i,SV411: $i] :
      ( ( ( in @ ( sK13_C @ SV411 @ SV376 ) @ SV376 )
        = $true )
      | ( ( subset @ SV376 @ SV411 )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1963]) ).

thf(2013,plain,
    ! [SV376: $i,SV411: $i] :
      ( ( ( ~ ( in @ ( sK13_C @ SV411 @ SV376 ) @ SV411 ) )
        = $true )
      | ( ( subset @ SV376 @ SV411 )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1964]) ).

thf(2014,plain,
    ! [SV412: $i,SV377: $i,SV475: $i] :
      ( ( ( ~ ( in @ SV475 @ SV377 ) )
        = $true )
      | ( ( in @ SV475 @ SV412 )
        = $true )
      | ( ( subset @ SV377 @ SV412 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1965]) ).

thf(2015,plain,
    ! [SV378: $i,SV413: $i] :
      ( ( ( ( ( sK23_C @ SV413 @ SV378 )
           != SV378 )
          | ~ ( in @ ( sK23_C @ SV413 @ SV378 ) @ SV413 ) )
        = $true )
      | ( ( SV413
          = ( singleton @ SV378 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1966]) ).

thf(2016,plain,
    ! [SV378: $i,SV413: $i] :
      ( ( ( ( ( sK23_C @ SV413 @ SV378 )
            = SV378 )
          | ( in @ ( sK23_C @ SV413 @ SV378 ) @ SV413 ) )
        = $true )
      | ( ( SV413
          = ( singleton @ SV378 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1967]) ).

thf(2017,plain,
    ! [SV414: $i,SV379: $i] :
      ( ( ( ~ ! [SY633: $i] :
                ( ( SY633 != SV379 )
                | ( in @ SY633 @ SV414 ) ) )
        = $false )
      | ( ( SV414
          = ( singleton @ SV379 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1968]) ).

thf(2018,plain,
    ! [SV379: $i,SV414: $i] :
      ( ( ( ~ ! [SY634: $i] :
                ( ~ ( in @ SY634 @ SV414 )
                | ( SY634 = SV379 ) ) )
        = $false )
      | ( ( SV414
          = ( singleton @ SV379 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1968]) ).

thf(2019,plain,
    ! [SV476: $i,SV462: $i] :
      ( ( ( ~ ( proper_subset @ SV462 @ SV476 ) )
        = $true )
      | ( ( ( SV462 != SV476 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1970]) ).

thf(2020,plain,
    ! [SV477: $i,SV463: $i] :
      ( ( ( ~ ( proper_subset @ SV463 @ SV477 ) )
        = $true )
      | ( ( subset @ SV463 @ SV477 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1971]) ).

thf(2021,plain,
    ! [SV464: $i,SV359: $i,SV448: $i,SV313: $i] :
      ( ( ( ~ ( in @ SV313 @ SV448 ) )
        = $true )
      | ( ( ~ ( in @ SV359 @ SV464 ) )
        = $true )
      | ( ( in @ ( ordered_pair @ SV313 @ SV359 ) @ ( cartesian_product2 @ SV448 @ SV464 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1972]) ).

thf(2022,plain,
    ! [SV485: $i,SV359: $i,SV313: $i] :
      ( ( ! [SY699: $i] :
            ~ ( in @ ( ordered_pair @ SV313 @ SV359 ) @ ( cartesian_product2 @ SV485 @ SY699 ) )
        | ( in @ SV313 @ SV485 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1973]) ).

thf(2023,plain,
    ! [SV486: $i,SV359: $i,SV313: $i] :
      ( ( ! [SY700: $i] :
            ( ~ ( in @ ( ordered_pair @ SV313 @ SV359 ) @ ( cartesian_product2 @ SV486 @ SY700 ) )
            | ( in @ SV359 @ SY700 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1974]) ).

thf(2024,plain,
    ! [SV314: $i,SV420: $i,SV449: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK12_D @ SV449 @ SV420 @ SV314 ) @ SV314 )
              | ~ ( in @ ( sK12_D @ SV449 @ SV420 @ SV314 ) @ SV420 )
              | ~ ( in @ ( sK12_D @ SV449 @ SV420 @ SV314 ) @ SV449 ) ) )
        = $false )
      | ( ( SV449
          = ( set_intersection2 @ SV314 @ SV420 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1975]) ).

thf(2025,plain,
    ! [SV314: $i,SV420: $i,SV449: $i] :
      ( ( ( ~ ~ ( ~ ( ( in @ ( sK12_D @ SV449 @ SV420 @ SV314 ) @ SV314 )
                    | ( in @ ( sK12_D @ SV449 @ SV420 @ SV314 ) @ SV449 ) )
                | ~ ( ( in @ ( sK12_D @ SV449 @ SV420 @ SV314 ) @ SV420 )
                    | ( in @ ( sK12_D @ SV449 @ SV420 @ SV314 ) @ SV449 ) ) ) )
        = $false )
      | ( ( SV449
          = ( set_intersection2 @ SV314 @ SV420 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1975]) ).

thf(2026,plain,
    ! [SV450: $i,SV421: $i,SV314: $i] :
      ( ( ( ~ ! [SY669: $i] :
                ( ~ ( in @ SY669 @ SV314 )
                | ~ ( in @ SY669 @ SV421 )
                | ( in @ SY669 @ SV450 ) )
          | ~ ~ ( ~ ! [SY670: $i] :
                      ( ~ ( in @ SY670 @ SV450 )
                      | ( in @ SY670 @ SV314 ) )
                | ~ ! [SY671: $i] :
                      ( ~ ( in @ SY671 @ SV450 )
                      | ( in @ SY671 @ SV421 ) ) ) )
        = $false )
      | ( ( SV450
          = ( set_intersection2 @ SV314 @ SV421 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1976]) ).

thf(2027,plain,
    ! [SV385: $i,SV422: $i] :
      ( ( ( ~ ( in @ ( sK21_C @ SV422 @ SV385 ) @ SV422 )
          | ~ ( subset @ ( sK21_C @ SV422 @ SV385 ) @ SV385 ) )
        = $true )
      | ( ( SV422
          = ( powerset @ SV385 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1977]) ).

thf(2028,plain,
    ! [SV385: $i,SV422: $i] :
      ( ( ( ( in @ ( sK21_C @ SV422 @ SV385 ) @ SV422 )
          | ( subset @ ( sK21_C @ SV422 @ SV385 ) @ SV385 ) )
        = $true )
      | ( ( SV422
          = ( powerset @ SV385 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1978]) ).

thf(2029,plain,
    ! [SV386: $i,SV423: $i] :
      ( ( ( ~ ! [SY640: $i] :
                ( ~ ( in @ SY640 @ SV423 )
                | ( subset @ SY640 @ SV386 ) ) )
        = $false )
      | ( ( SV423
          = ( powerset @ SV386 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1979]) ).

thf(2030,plain,
    ! [SV423: $i,SV386: $i] :
      ( ( ( ~ ! [SY641: $i] :
                ( ~ ( subset @ SY641 @ SV386 )
                | ( in @ SY641 @ SV423 ) ) )
        = $false )
      | ( ( SV423
          = ( powerset @ SV386 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1979]) ).

thf(2031,plain,
    ! [SV315: $i,SV360: $i] :
      ( ( ( in @ ( sK5_C @ SV360 @ SV315 ) @ SV360 )
        = $false )
      | ( ( in @ ( sK5_C @ SV360 @ SV315 ) @ SV315 )
        = $false )
      | ( ( SV315 = SV360 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1980]) ).

thf(2032,plain,
    ! [SV478: $i,SV451: $i,SV361: $i,SV316: $i] :
      ( ( ( ( ordered_pair @ SV316 @ SV361 )
          = ( ordered_pair @ SV451 @ SV478 ) )
        = $false )
      | ( ( SV316 = SV451 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1981]) ).

thf(2033,plain,
    ! [SV465: $i,SV452: $i,SV361: $i,SV316: $i] :
      ( ( ( ( ordered_pair @ SV316 @ SV361 )
          = ( ordered_pair @ SV452 @ SV465 ) )
        = $false )
      | ( ( SV361 = SV465 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1982]) ).

thf(2034,plain,
    ! [SV317: $i,SV426: $i,SV453: $i] :
      ( ( ( ~ ~ ( ~ ( ~ ( in @ ( sK19_D @ SV453 @ SV426 @ SV317 ) @ SV453 )
                    | ~ ( in @ ( sK19_D @ SV453 @ SV426 @ SV317 ) @ SV317 ) )
                | ~ ( ~ ( in @ ( sK19_D @ SV453 @ SV426 @ SV317 ) @ SV453 )
                    | ~ ( in @ ( sK19_D @ SV453 @ SV426 @ SV317 ) @ SV426 ) ) ) )
        = $false )
      | ( ( SV453
          = ( set_union2 @ SV317 @ SV426 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1983]) ).

thf(2035,plain,
    ! [SV317: $i,SV426: $i,SV453: $i] :
      ( ( ( ~ ( ( in @ ( sK19_D @ SV453 @ SV426 @ SV317 ) @ SV453 )
              | ( in @ ( sK19_D @ SV453 @ SV426 @ SV317 ) @ SV317 )
              | ( in @ ( sK19_D @ SV453 @ SV426 @ SV317 ) @ SV426 ) ) )
        = $false )
      | ( ( SV453
          = ( set_union2 @ SV317 @ SV426 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1983]) ).

thf(2036,plain,
    ! [SV427: $i,SV317: $i,SV454: $i] :
      ( ( ( ~ ! [SY674: $i] :
                ( ~ ( in @ SY674 @ SV454 )
                | ( in @ SY674 @ SV317 )
                | ( in @ SY674 @ SV427 ) )
          | ~ ~ ( ~ ! [SY675: $i] :
                      ( ~ ( in @ SY675 @ SV317 )
                      | ( in @ SY675 @ SV454 ) )
                | ~ ! [SY676: $i] :
                      ( ~ ( in @ SY676 @ SV427 )
                      | ( in @ SY676 @ SV454 ) ) ) )
        = $false )
      | ( ( SV454
          = ( set_union2 @ SV317 @ SV427 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1984]) ).

thf(2037,plain,
    ! [SV389: $i,SV428: $i] :
      ( ( ( subset @ SV428 @ SV389 )
        = $false )
      | ( ( subset @ SV389 @ SV428 )
        = $false )
      | ( ( SV389 = SV428 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1985]) ).

thf(2038,plain,
    ! [SV479: $i,SV466: $i] :
      ( ( ( ( SV466 != SV479 ) )
        = $true )
      | ( ( subset @ SV466 @ SV479 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1986]) ).

thf(2039,plain,
    ! [SV480: $i,SV467: $i] :
      ( ( ( ( SV467 != SV480 ) )
        = $true )
      | ( ( subset @ SV480 @ SV467 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1987]) ).

thf(2040,plain,
    ! [SV429: $i,SV455: $i,SV318: $i] :
      ( ( ( in @ SV318 @ SV455 )
        = $false )
      | ( ( ~ ( in @ SV429 @ SV455 ) )
        = $true )
      | ( ( subset @ ( unordered_pair @ SV318 @ SV429 ) @ SV455 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1988]) ).

thf(2041,plain,
    ! [SV487: $i,SV481: $i,SV318: $i] :
      ( ( ~ ( subset @ ( unordered_pair @ SV318 @ SV481 ) @ SV487 )
        | ( in @ SV318 @ SV487 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1989]) ).

thf(2042,plain,
    ! [SV488: $i,SV482: $i,SV318: $i] :
      ( ( ~ ( subset @ ( unordered_pair @ SV318 @ SV482 ) @ SV488 )
        | ( in @ SV482 @ SV488 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1990]) ).

thf(2043,plain,
    ! [SV319: $i,SV430: $i,SV456: $i] :
      ( ( ( ~ ~ ( ~ ( ~ ( in @ ( sK20_D @ SV456 @ SV430 @ SV319 ) @ SV456 )
                    | ( ( sK20_D @ SV456 @ SV430 @ SV319 )
                     != SV319 ) )
                | ~ ( ~ ( in @ ( sK20_D @ SV456 @ SV430 @ SV319 ) @ SV456 )
                    | ( ( sK20_D @ SV456 @ SV430 @ SV319 )
                     != SV430 ) ) ) )
        = $false )
      | ( ( SV456
          = ( unordered_pair @ SV319 @ SV430 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1991]) ).

thf(2044,plain,
    ! [SV319: $i,SV430: $i,SV456: $i] :
      ( ( ( ~ ( ( in @ ( sK20_D @ SV456 @ SV430 @ SV319 ) @ SV456 )
              | ( ( sK20_D @ SV456 @ SV430 @ SV319 )
                = SV319 )
              | ( ( sK20_D @ SV456 @ SV430 @ SV319 )
                = SV430 ) ) )
        = $false )
      | ( ( SV456
          = ( unordered_pair @ SV319 @ SV430 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1991]) ).

thf(2045,plain,
    ! [SV431: $i,SV319: $i,SV457: $i] :
      ( ( ( ~ ! [SY677: $i] :
                ( ~ ( in @ SY677 @ SV457 )
                | ( SY677 = SV319 )
                | ( SY677 = SV431 ) )
          | ~ ~ ( ~ ! [SY678: $i] :
                      ( ( SY678 != SV319 )
                      | ( in @ SY678 @ SV457 ) )
                | ~ ! [SY679: $i] :
                      ( ( SY679 != SV431 )
                      | ( in @ SY679 @ SV457 ) ) ) )
        = $false )
      | ( ( SV457
          = ( unordered_pair @ SV319 @ SV431 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1992]) ).

thf(2046,plain,
    ! [SV320: $i,SV432: $i,SV458: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK8_D @ SV458 @ SV432 @ SV320 ) @ SV320 )
              | ( in @ ( sK8_D @ SV458 @ SV432 @ SV320 ) @ SV432 )
              | ~ ( in @ ( sK8_D @ SV458 @ SV432 @ SV320 ) @ SV458 ) ) )
        = $false )
      | ( ( SV458
          = ( set_difference @ SV320 @ SV432 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1994]) ).

thf(2047,plain,
    ! [SV320: $i,SV432: $i,SV458: $i] :
      ( ( ( ~ ~ ( ~ ( ( in @ ( sK8_D @ SV458 @ SV432 @ SV320 ) @ SV320 )
                    | ( in @ ( sK8_D @ SV458 @ SV432 @ SV320 ) @ SV458 ) )
                | ~ ( ~ ( in @ ( sK8_D @ SV458 @ SV432 @ SV320 ) @ SV432 )
                    | ( in @ ( sK8_D @ SV458 @ SV432 @ SV320 ) @ SV458 ) ) ) )
        = $false )
      | ( ( SV458
          = ( set_difference @ SV320 @ SV432 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1994]) ).

thf(2048,plain,
    ! [SV459: $i,SV433: $i,SV320: $i] :
      ( ( ( ~ ! [SY680: $i] :
                ( ~ ( in @ SY680 @ SV320 )
                | ( in @ SY680 @ SV433 )
                | ( in @ SY680 @ SV459 ) )
          | ~ ~ ( ~ ! [SY681: $i] :
                      ( ~ ( in @ SY681 @ SV459 )
                      | ( in @ SY681 @ SV320 ) )
                | ~ ! [SY682: $i] :
                      ( ~ ( in @ SY682 @ SV459 )
                      | ~ ( in @ SY682 @ SV433 ) ) ) )
        = $false )
      | ( ( SV459
          = ( set_difference @ SV320 @ SV433 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1995]) ).

thf(2049,plain,
    ! [SV469: $i,SV437: $i,SV395: $i] :
      ( ( ( disjoint @ SV395 @ SV437 )
        = $false )
      | ( ( in @ SV469 @ ( set_intersection2 @ SV395 @ SV437 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1996]) ).

thf(2050,plain,
    ! [SV470: $i] :
      ( ( ( SV470 = empty_set )
        = $false )
      | ( ( ! [SY693: $i] : ( subset @ SV470 @ ( singleton @ SY693 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1998]) ).

thf(2051,plain,
    ! [SV483: $i,SV471: $i] :
      ( ( ( ( SV471
           != ( singleton @ SV483 ) ) )
        = $true )
      | ( ( subset @ SV471 @ ( singleton @ SV483 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1999]) ).

thf(2052,plain,
    ! [SV472: $i] :
      ( ( ( SV472 = empty_set )
        = $false )
      | ( ( ! [SY695: $i] : ( subset @ SV472 @ ( singleton @ SY695 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2001]) ).

thf(2053,plain,
    ! [SV484: $i,SV473: $i] :
      ( ( ( ( SV473
           != ( singleton @ SV484 ) ) )
        = $true )
      | ( ( subset @ SV473 @ ( singleton @ SV484 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2002]) ).

thf(2054,plain,
    ! [SV402: $i,SV444: $i] :
      ( ( ( in @ ( sK25_C @ SV444 @ SV402 ) @ SV402 )
        = $true )
      | ( ( disjoint @ SV402 @ SV444 )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[2003]) ).

thf(2055,plain,
    ! [SV402: $i,SV444: $i] :
      ( ( ( in @ ( sK25_C @ SV444 @ SV402 ) @ SV444 )
        = $true )
      | ( ( disjoint @ SV402 @ SV444 )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[2004]) ).

thf(2056,plain,
    ! [SV445: $i,SV403: $i,SV474: $i] :
      ( ( ( in @ SV474 @ SV403 )
        = $false )
      | ( ( ~ ( in @ SV474 @ SV445 ) )
        = $true )
      | ( ( ~ ( disjoint @ SV403 @ SV445 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2005]) ).

thf(2057,plain,
    ! [SV460: $i,SV446: $i,SV321: $i] :
      ( ( ( ~ ( ! [SY683: $i,SY684: $i] :
                  ( ~ ( in @ SY683 @ SV321 )
                  | ~ ( in @ SY684 @ SV446 )
                  | ( ( sK16_D @ SV460 @ SV446 @ SV321 )
                   != ( ordered_pair @ SY683 @ SY684 ) ) )
              | ~ ( in @ ( sK16_D @ SV460 @ SV446 @ SV321 ) @ SV460 ) ) )
        = $false )
      | ( ( SV460
          = ( cartesian_product2 @ SV321 @ SV446 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[2006]) ).

thf(2058,plain,
    ! [SV321: $i,SV446: $i,SV460: $i] :
      ( ( ( ~ ( ~ ( ~ ~ ( ~ ( in @ ( sK17_SY205 @ SV460 @ SV446 @ SV321 ) @ SV321 )
                        | ~ ( in @ ( sK18_SY207 @ SV460 @ SV446 @ SV321 ) @ SV446 ) )
                  | ( ( sK16_D @ SV460 @ SV446 @ SV321 )
                   != ( ordered_pair @ ( sK17_SY205 @ SV460 @ SV446 @ SV321 ) @ ( sK18_SY207 @ SV460 @ SV446 @ SV321 ) ) ) )
              | ( in @ ( sK16_D @ SV460 @ SV446 @ SV321 ) @ SV460 ) ) )
        = $false )
      | ( ( SV460
          = ( cartesian_product2 @ SV321 @ SV446 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[2006]) ).

thf(2059,plain,
    ! [SV461: $i,SV447: $i,SV321: $i] :
      ( ( ( ~ ! [SY685: $i] :
                ( ! [SY665: $i,SY666: $i] :
                    ( ~ ( in @ SY665 @ SV321 )
                    | ~ ( in @ SY666 @ SV447 )
                    | ( SY685
                     != ( ordered_pair @ SY665 @ SY666 ) ) )
                | ( in @ SY685 @ SV461 ) )
          | ~ ! [SY688: $i] :
                ( ~ ( in @ SY688 @ SV461 )
                | ~ ( ~ ~ ( ~ ( in @ ( sK14_E @ SY688 @ SV461 @ SV447 @ SV321 ) @ SV321 )
                          | ~ ( in @ ( sK15_SY202 @ SY688 @ SV461 @ SV447 @ SV321 ) @ SV447 ) )
                    | ( SY688
                     != ( ordered_pair @ ( sK14_E @ SY688 @ SV461 @ SV447 @ SV321 ) @ ( sK15_SY202 @ SY688 @ SV461 @ SV447 @ SV321 ) ) ) ) ) )
        = $false )
      | ( ( SV461
          = ( cartesian_product2 @ SV321 @ SV447 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2007]) ).

thf(2060,plain,
    ! [SV372: $i,SV407: $i] :
      ( ( ( ! [SY628: $i] :
              ( ~ ( in @ ( sK10_C @ SV407 @ SV372 ) @ SY628 )
              | ~ ( in @ SY628 @ SV372 ) ) )
        = $true )
      | ( ( ~ ( in @ ( sK10_C @ SV407 @ SV372 ) @ SV407 ) )
        = $true )
      | ( ( SV407
          = ( union @ SV372 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2008]) ).

thf(2061,plain,
    ! [SV372: $i,SV407: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK10_C @ SV407 @ SV372 ) @ ( sK11_SY201 @ SV407 @ SV372 ) )
              | ~ ( in @ ( sK11_SY201 @ SV407 @ SV372 ) @ SV372 ) ) )
        = $true )
      | ( ( in @ ( sK10_C @ SV407 @ SV372 ) @ SV407 )
        = $true )
      | ( ( SV407
          = ( union @ SV372 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2009]) ).

thf(2062,plain,
    ! [SV408: $i,SV373: $i] :
      ( ( ( ! [SY629: $i] :
              ( ! [SY590: $i] :
                  ( ~ ( in @ SY629 @ SY590 )
                  | ~ ( in @ SY590 @ SV373 ) )
              | ( in @ SY629 @ SV408 ) ) )
        = $true )
      | ( ( SV408
          = ( union @ SV373 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[2010]) ).

thf(2063,plain,
    ! [SV373: $i,SV408: $i] :
      ( ( ( ! [SY631: $i] :
              ( ~ ( in @ SY631 @ SV408 )
              | ~ ( ~ ( in @ SY631 @ ( sK9_D @ SY631 @ SV408 @ SV373 ) )
                  | ~ ( in @ ( sK9_D @ SY631 @ SV408 @ SV373 ) @ SV373 ) ) ) )
        = $true )
      | ( ( SV408
          = ( union @ SV373 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[2011]) ).

thf(2064,plain,
    ! [SV376: $i,SV411: $i] :
      ( ( ( in @ ( sK13_C @ SV411 @ SV376 ) @ SV411 )
        = $false )
      | ( ( subset @ SV376 @ SV411 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2013]) ).

thf(2065,plain,
    ! [SV412: $i,SV377: $i,SV475: $i] :
      ( ( ( in @ SV475 @ SV377 )
        = $false )
      | ( ( in @ SV475 @ SV412 )
        = $true )
      | ( ( subset @ SV377 @ SV412 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2014]) ).

thf(2066,plain,
    ! [SV378: $i,SV413: $i] :
      ( ( ( ( ( sK23_C @ SV413 @ SV378 )
           != SV378 ) )
        = $true )
      | ( ( ~ ( in @ ( sK23_C @ SV413 @ SV378 ) @ SV413 ) )
        = $true )
      | ( ( SV413
          = ( singleton @ SV378 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2015]) ).

thf(2067,plain,
    ! [SV378: $i,SV413: $i] :
      ( ( ( ( sK23_C @ SV413 @ SV378 )
          = SV378 )
        = $true )
      | ( ( in @ ( sK23_C @ SV413 @ SV378 ) @ SV413 )
        = $true )
      | ( ( SV413
          = ( singleton @ SV378 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2016]) ).

thf(2068,plain,
    ! [SV414: $i,SV379: $i] :
      ( ( ( ! [SY633: $i] :
              ( ( SY633 != SV379 )
              | ( in @ SY633 @ SV414 ) ) )
        = $true )
      | ( ( SV414
          = ( singleton @ SV379 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[2017]) ).

thf(2069,plain,
    ! [SV379: $i,SV414: $i] :
      ( ( ( ! [SY634: $i] :
              ( ~ ( in @ SY634 @ SV414 )
              | ( SY634 = SV379 ) ) )
        = $true )
      | ( ( SV414
          = ( singleton @ SV379 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[2018]) ).

thf(2070,plain,
    ! [SV476: $i,SV462: $i] :
      ( ( ( proper_subset @ SV462 @ SV476 )
        = $false )
      | ( ( ( SV462 != SV476 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2019]) ).

thf(2071,plain,
    ! [SV477: $i,SV463: $i] :
      ( ( ( proper_subset @ SV463 @ SV477 )
        = $false )
      | ( ( subset @ SV463 @ SV477 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2020]) ).

thf(2072,plain,
    ! [SV464: $i,SV359: $i,SV448: $i,SV313: $i] :
      ( ( ( in @ SV313 @ SV448 )
        = $false )
      | ( ( ~ ( in @ SV359 @ SV464 ) )
        = $true )
      | ( ( in @ ( ordered_pair @ SV313 @ SV359 ) @ ( cartesian_product2 @ SV448 @ SV464 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2021]) ).

thf(2073,plain,
    ! [SV485: $i,SV359: $i,SV313: $i] :
      ( ( ( ! [SY699: $i] :
              ~ ( in @ ( ordered_pair @ SV313 @ SV359 ) @ ( cartesian_product2 @ SV485 @ SY699 ) ) )
        = $true )
      | ( ( in @ SV313 @ SV485 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2022]) ).

thf(2074,plain,
    ! [SV489: $i,SV486: $i,SV359: $i,SV313: $i] :
      ( ( ~ ( in @ ( ordered_pair @ SV313 @ SV359 ) @ ( cartesian_product2 @ SV486 @ SV489 ) )
        | ( in @ SV359 @ SV489 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[2023]) ).

thf(2075,plain,
    ! [SV314: $i,SV420: $i,SV449: $i] :
      ( ( ( ~ ( in @ ( sK12_D @ SV449 @ SV420 @ SV314 ) @ SV314 )
          | ~ ( in @ ( sK12_D @ SV449 @ SV420 @ SV314 ) @ SV420 )
          | ~ ( in @ ( sK12_D @ SV449 @ SV420 @ SV314 ) @ SV449 ) )
        = $true )
      | ( ( SV449
          = ( set_intersection2 @ SV314 @ SV420 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[2024]) ).

thf(2076,plain,
    ! [SV314: $i,SV420: $i,SV449: $i] :
      ( ( ( ~ ( ~ ( ( in @ ( sK12_D @ SV449 @ SV420 @ SV314 ) @ SV314 )
                  | ( in @ ( sK12_D @ SV449 @ SV420 @ SV314 ) @ SV449 ) )
              | ~ ( ( in @ ( sK12_D @ SV449 @ SV420 @ SV314 ) @ SV420 )
                  | ( in @ ( sK12_D @ SV449 @ SV420 @ SV314 ) @ SV449 ) ) ) )
        = $true )
      | ( ( SV449
          = ( set_intersection2 @ SV314 @ SV420 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[2025]) ).

thf(2077,plain,
    ! [SV450: $i,SV421: $i,SV314: $i] :
      ( ( ( ~ ! [SY669: $i] :
                ( ~ ( in @ SY669 @ SV314 )
                | ~ ( in @ SY669 @ SV421 )
                | ( in @ SY669 @ SV450 ) ) )
        = $false )
      | ( ( SV450
          = ( set_intersection2 @ SV314 @ SV421 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[2026]) ).

thf(2078,plain,
    ! [SV421: $i,SV314: $i,SV450: $i] :
      ( ( ( ~ ~ ( ~ ! [SY670: $i] :
                      ( ~ ( in @ SY670 @ SV450 )
                      | ( in @ SY670 @ SV314 ) )
                | ~ ! [SY671: $i] :
                      ( ~ ( in @ SY671 @ SV450 )
                      | ( in @ SY671 @ SV421 ) ) ) )
        = $false )
      | ( ( SV450
          = ( set_intersection2 @ SV314 @ SV421 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[2026]) ).

thf(2079,plain,
    ! [SV385: $i,SV422: $i] :
      ( ( ( ~ ( in @ ( sK21_C @ SV422 @ SV385 ) @ SV422 ) )
        = $true )
      | ( ( ~ ( subset @ ( sK21_C @ SV422 @ SV385 ) @ SV385 ) )
        = $true )
      | ( ( SV422
          = ( powerset @ SV385 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2027]) ).

thf(2080,plain,
    ! [SV385: $i,SV422: $i] :
      ( ( ( in @ ( sK21_C @ SV422 @ SV385 ) @ SV422 )
        = $true )
      | ( ( subset @ ( sK21_C @ SV422 @ SV385 ) @ SV385 )
        = $true )
      | ( ( SV422
          = ( powerset @ SV385 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2028]) ).

thf(2081,plain,
    ! [SV386: $i,SV423: $i] :
      ( ( ( ! [SY640: $i] :
              ( ~ ( in @ SY640 @ SV423 )
              | ( subset @ SY640 @ SV386 ) ) )
        = $true )
      | ( ( SV423
          = ( powerset @ SV386 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[2029]) ).

thf(2082,plain,
    ! [SV423: $i,SV386: $i] :
      ( ( ( ! [SY641: $i] :
              ( ~ ( subset @ SY641 @ SV386 )
              | ( in @ SY641 @ SV423 ) ) )
        = $true )
      | ( ( SV423
          = ( powerset @ SV386 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[2030]) ).

thf(2083,plain,
    ! [SV317: $i,SV426: $i,SV453: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ ( sK19_D @ SV453 @ SV426 @ SV317 ) @ SV453 )
                  | ~ ( in @ ( sK19_D @ SV453 @ SV426 @ SV317 ) @ SV317 ) )
              | ~ ( ~ ( in @ ( sK19_D @ SV453 @ SV426 @ SV317 ) @ SV453 )
                  | ~ ( in @ ( sK19_D @ SV453 @ SV426 @ SV317 ) @ SV426 ) ) ) )
        = $true )
      | ( ( SV453
          = ( set_union2 @ SV317 @ SV426 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[2034]) ).

thf(2084,plain,
    ! [SV317: $i,SV426: $i,SV453: $i] :
      ( ( ( ( in @ ( sK19_D @ SV453 @ SV426 @ SV317 ) @ SV453 )
          | ( in @ ( sK19_D @ SV453 @ SV426 @ SV317 ) @ SV317 )
          | ( in @ ( sK19_D @ SV453 @ SV426 @ SV317 ) @ SV426 ) )
        = $true )
      | ( ( SV453
          = ( set_union2 @ SV317 @ SV426 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[2035]) ).

thf(2085,plain,
    ! [SV427: $i,SV317: $i,SV454: $i] :
      ( ( ( ~ ! [SY674: $i] :
                ( ~ ( in @ SY674 @ SV454 )
                | ( in @ SY674 @ SV317 )
                | ( in @ SY674 @ SV427 ) ) )
        = $false )
      | ( ( SV454
          = ( set_union2 @ SV317 @ SV427 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[2036]) ).

thf(2086,plain,
    ! [SV427: $i,SV454: $i,SV317: $i] :
      ( ( ( ~ ~ ( ~ ! [SY675: $i] :
                      ( ~ ( in @ SY675 @ SV317 )
                      | ( in @ SY675 @ SV454 ) )
                | ~ ! [SY676: $i] :
                      ( ~ ( in @ SY676 @ SV427 )
                      | ( in @ SY676 @ SV454 ) ) ) )
        = $false )
      | ( ( SV454
          = ( set_union2 @ SV317 @ SV427 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[2036]) ).

thf(2087,plain,
    ! [SV479: $i,SV466: $i] :
      ( ( ( SV466 = SV479 )
        = $false )
      | ( ( subset @ SV466 @ SV479 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2038]) ).

thf(2088,plain,
    ! [SV480: $i,SV467: $i] :
      ( ( ( SV467 = SV480 )
        = $false )
      | ( ( subset @ SV480 @ SV467 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2039]) ).

thf(2089,plain,
    ! [SV318: $i,SV455: $i,SV429: $i] :
      ( ( ( in @ SV429 @ SV455 )
        = $false )
      | ( ( in @ SV318 @ SV455 )
        = $false )
      | ( ( subset @ ( unordered_pair @ SV318 @ SV429 ) @ SV455 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2040]) ).

thf(2090,plain,
    ! [SV487: $i,SV481: $i,SV318: $i] :
      ( ( ( ~ ( subset @ ( unordered_pair @ SV318 @ SV481 ) @ SV487 ) )
        = $true )
      | ( ( in @ SV318 @ SV487 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2041]) ).

thf(2091,plain,
    ! [SV488: $i,SV482: $i,SV318: $i] :
      ( ( ( ~ ( subset @ ( unordered_pair @ SV318 @ SV482 ) @ SV488 ) )
        = $true )
      | ( ( in @ SV482 @ SV488 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2042]) ).

thf(2092,plain,
    ! [SV319: $i,SV430: $i,SV456: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ ( sK20_D @ SV456 @ SV430 @ SV319 ) @ SV456 )
                  | ( ( sK20_D @ SV456 @ SV430 @ SV319 )
                   != SV319 ) )
              | ~ ( ~ ( in @ ( sK20_D @ SV456 @ SV430 @ SV319 ) @ SV456 )
                  | ( ( sK20_D @ SV456 @ SV430 @ SV319 )
                   != SV430 ) ) ) )
        = $true )
      | ( ( SV456
          = ( unordered_pair @ SV319 @ SV430 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[2043]) ).

thf(2093,plain,
    ! [SV319: $i,SV430: $i,SV456: $i] :
      ( ( ( ( in @ ( sK20_D @ SV456 @ SV430 @ SV319 ) @ SV456 )
          | ( ( sK20_D @ SV456 @ SV430 @ SV319 )
            = SV319 )
          | ( ( sK20_D @ SV456 @ SV430 @ SV319 )
            = SV430 ) )
        = $true )
      | ( ( SV456
          = ( unordered_pair @ SV319 @ SV430 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[2044]) ).

thf(2094,plain,
    ! [SV431: $i,SV319: $i,SV457: $i] :
      ( ( ( ~ ! [SY677: $i] :
                ( ~ ( in @ SY677 @ SV457 )
                | ( SY677 = SV319 )
                | ( SY677 = SV431 ) ) )
        = $false )
      | ( ( SV457
          = ( unordered_pair @ SV319 @ SV431 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[2045]) ).

thf(2095,plain,
    ! [SV431: $i,SV457: $i,SV319: $i] :
      ( ( ( ~ ~ ( ~ ! [SY678: $i] :
                      ( ( SY678 != SV319 )
                      | ( in @ SY678 @ SV457 ) )
                | ~ ! [SY679: $i] :
                      ( ( SY679 != SV431 )
                      | ( in @ SY679 @ SV457 ) ) ) )
        = $false )
      | ( ( SV457
          = ( unordered_pair @ SV319 @ SV431 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[2045]) ).

thf(2096,plain,
    ! [SV320: $i,SV432: $i,SV458: $i] :
      ( ( ( ~ ( in @ ( sK8_D @ SV458 @ SV432 @ SV320 ) @ SV320 )
          | ( in @ ( sK8_D @ SV458 @ SV432 @ SV320 ) @ SV432 )
          | ~ ( in @ ( sK8_D @ SV458 @ SV432 @ SV320 ) @ SV458 ) )
        = $true )
      | ( ( SV458
          = ( set_difference @ SV320 @ SV432 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[2046]) ).

thf(2097,plain,
    ! [SV320: $i,SV432: $i,SV458: $i] :
      ( ( ( ~ ( ~ ( ( in @ ( sK8_D @ SV458 @ SV432 @ SV320 ) @ SV320 )
                  | ( in @ ( sK8_D @ SV458 @ SV432 @ SV320 ) @ SV458 ) )
              | ~ ( ~ ( in @ ( sK8_D @ SV458 @ SV432 @ SV320 ) @ SV432 )
                  | ( in @ ( sK8_D @ SV458 @ SV432 @ SV320 ) @ SV458 ) ) ) )
        = $true )
      | ( ( SV458
          = ( set_difference @ SV320 @ SV432 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[2047]) ).

thf(2098,plain,
    ! [SV459: $i,SV433: $i,SV320: $i] :
      ( ( ( ~ ! [SY680: $i] :
                ( ~ ( in @ SY680 @ SV320 )
                | ( in @ SY680 @ SV433 )
                | ( in @ SY680 @ SV459 ) ) )
        = $false )
      | ( ( SV459
          = ( set_difference @ SV320 @ SV433 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[2048]) ).

thf(2099,plain,
    ! [SV433: $i,SV320: $i,SV459: $i] :
      ( ( ( ~ ~ ( ~ ! [SY681: $i] :
                      ( ~ ( in @ SY681 @ SV459 )
                      | ( in @ SY681 @ SV320 ) )
                | ~ ! [SY682: $i] :
                      ( ~ ( in @ SY682 @ SV459 )
                      | ~ ( in @ SY682 @ SV433 ) ) ) )
        = $false )
      | ( ( SV459
          = ( set_difference @ SV320 @ SV433 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[2048]) ).

thf(2100,plain,
    ! [SV490: $i,SV470: $i] :
      ( ( ( subset @ SV470 @ ( singleton @ SV490 ) )
        = $true )
      | ( ( SV470 = empty_set )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[2050]) ).

thf(2101,plain,
    ! [SV483: $i,SV471: $i] :
      ( ( ( SV471
          = ( singleton @ SV483 ) )
        = $false )
      | ( ( subset @ SV471 @ ( singleton @ SV483 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2051]) ).

thf(2102,plain,
    ! [SV491: $i,SV472: $i] :
      ( ( ( subset @ SV472 @ ( singleton @ SV491 ) )
        = $true )
      | ( ( SV472 = empty_set )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[2052]) ).

thf(2103,plain,
    ! [SV484: $i,SV473: $i] :
      ( ( ( SV473
          = ( singleton @ SV484 ) )
        = $false )
      | ( ( subset @ SV473 @ ( singleton @ SV484 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2053]) ).

thf(2104,plain,
    ! [SV403: $i,SV445: $i,SV474: $i] :
      ( ( ( in @ SV474 @ SV445 )
        = $false )
      | ( ( in @ SV474 @ SV403 )
        = $false )
      | ( ( ~ ( disjoint @ SV403 @ SV445 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2056]) ).

thf(2105,plain,
    ! [SV460: $i,SV446: $i,SV321: $i] :
      ( ( ( ! [SY683: $i,SY684: $i] :
              ( ~ ( in @ SY683 @ SV321 )
              | ~ ( in @ SY684 @ SV446 )
              | ( ( sK16_D @ SV460 @ SV446 @ SV321 )
               != ( ordered_pair @ SY683 @ SY684 ) ) )
          | ~ ( in @ ( sK16_D @ SV460 @ SV446 @ SV321 ) @ SV460 ) )
        = $true )
      | ( ( SV460
          = ( cartesian_product2 @ SV321 @ SV446 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[2057]) ).

thf(2106,plain,
    ! [SV321: $i,SV446: $i,SV460: $i] :
      ( ( ( ~ ( ~ ~ ( ~ ( in @ ( sK17_SY205 @ SV460 @ SV446 @ SV321 ) @ SV321 )
                    | ~ ( in @ ( sK18_SY207 @ SV460 @ SV446 @ SV321 ) @ SV446 ) )
              | ( ( sK16_D @ SV460 @ SV446 @ SV321 )
               != ( ordered_pair @ ( sK17_SY205 @ SV460 @ SV446 @ SV321 ) @ ( sK18_SY207 @ SV460 @ SV446 @ SV321 ) ) ) )
          | ( in @ ( sK16_D @ SV460 @ SV446 @ SV321 ) @ SV460 ) )
        = $true )
      | ( ( SV460
          = ( cartesian_product2 @ SV321 @ SV446 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[2058]) ).

thf(2107,plain,
    ! [SV461: $i,SV447: $i,SV321: $i] :
      ( ( ( ~ ! [SY685: $i] :
                ( ! [SY665: $i,SY666: $i] :
                    ( ~ ( in @ SY665 @ SV321 )
                    | ~ ( in @ SY666 @ SV447 )
                    | ( SY685
                     != ( ordered_pair @ SY665 @ SY666 ) ) )
                | ( in @ SY685 @ SV461 ) ) )
        = $false )
      | ( ( SV461
          = ( cartesian_product2 @ SV321 @ SV447 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[2059]) ).

thf(2108,plain,
    ! [SV321: $i,SV447: $i,SV461: $i] :
      ( ( ( ~ ! [SY688: $i] :
                ( ~ ( in @ SY688 @ SV461 )
                | ~ ( ~ ~ ( ~ ( in @ ( sK14_E @ SY688 @ SV461 @ SV447 @ SV321 ) @ SV321 )
                          | ~ ( in @ ( sK15_SY202 @ SY688 @ SV461 @ SV447 @ SV321 ) @ SV447 ) )
                    | ( SY688
                     != ( ordered_pair @ ( sK14_E @ SY688 @ SV461 @ SV447 @ SV321 ) @ ( sK15_SY202 @ SY688 @ SV461 @ SV447 @ SV321 ) ) ) ) ) )
        = $false )
      | ( ( SV461
          = ( cartesian_product2 @ SV321 @ SV447 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[2059]) ).

thf(2109,plain,
    ! [SV492: $i,SV372: $i,SV407: $i] :
      ( ( ( ~ ( in @ ( sK10_C @ SV407 @ SV372 ) @ SV492 )
          | ~ ( in @ SV492 @ SV372 ) )
        = $true )
      | ( ( ~ ( in @ ( sK10_C @ SV407 @ SV372 ) @ SV407 ) )
        = $true )
      | ( ( SV407
          = ( union @ SV372 ) )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[2060]) ).

thf(2110,plain,
    ! [SV372: $i,SV407: $i] :
      ( ( ( ~ ( in @ ( sK10_C @ SV407 @ SV372 ) @ ( sK11_SY201 @ SV407 @ SV372 ) )
          | ~ ( in @ ( sK11_SY201 @ SV407 @ SV372 ) @ SV372 ) )
        = $false )
      | ( ( in @ ( sK10_C @ SV407 @ SV372 ) @ SV407 )
        = $true )
      | ( ( SV407
          = ( union @ SV372 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2061]) ).

thf(2111,plain,
    ! [SV408: $i,SV373: $i,SV493: $i] :
      ( ( ( ! [SY701: $i] :
              ( ~ ( in @ SV493 @ SY701 )
              | ~ ( in @ SY701 @ SV373 ) )
          | ( in @ SV493 @ SV408 ) )
        = $true )
      | ( ( SV408
          = ( union @ SV373 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[2062]) ).

thf(2112,plain,
    ! [SV373: $i,SV408: $i,SV494: $i] :
      ( ( ( ~ ( in @ SV494 @ SV408 )
          | ~ ( ~ ( in @ SV494 @ ( sK9_D @ SV494 @ SV408 @ SV373 ) )
              | ~ ( in @ ( sK9_D @ SV494 @ SV408 @ SV373 ) @ SV373 ) ) )
        = $true )
      | ( ( SV408
          = ( union @ SV373 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[2063]) ).

thf(2113,plain,
    ! [SV378: $i,SV413: $i] :
      ( ( ( ( sK23_C @ SV413 @ SV378 )
          = SV378 )
        = $false )
      | ( ( ~ ( in @ ( sK23_C @ SV413 @ SV378 ) @ SV413 ) )
        = $true )
      | ( ( SV413
          = ( singleton @ SV378 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2066]) ).

thf(2114,plain,
    ! [SV414: $i,SV379: $i,SV495: $i] :
      ( ( ( ( SV495 != SV379 )
          | ( in @ SV495 @ SV414 ) )
        = $true )
      | ( ( SV414
          = ( singleton @ SV379 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[2068]) ).

thf(2115,plain,
    ! [SV379: $i,SV414: $i,SV496: $i] :
      ( ( ( ~ ( in @ SV496 @ SV414 )
          | ( SV496 = SV379 ) )
        = $true )
      | ( ( SV414
          = ( singleton @ SV379 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[2069]) ).

thf(2116,plain,
    ! [SV476: $i,SV462: $i] :
      ( ( ( SV462 = SV476 )
        = $false )
      | ( ( proper_subset @ SV462 @ SV476 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2070]) ).

thf(2117,plain,
    ! [SV448: $i,SV313: $i,SV464: $i,SV359: $i] :
      ( ( ( in @ SV359 @ SV464 )
        = $false )
      | ( ( in @ SV313 @ SV448 )
        = $false )
      | ( ( in @ ( ordered_pair @ SV313 @ SV359 ) @ ( cartesian_product2 @ SV448 @ SV464 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2072]) ).

thf(2118,plain,
    ! [SV497: $i,SV485: $i,SV359: $i,SV313: $i] :
      ( ( ( ~ ( in @ ( ordered_pair @ SV313 @ SV359 ) @ ( cartesian_product2 @ SV485 @ SV497 ) ) )
        = $true )
      | ( ( in @ SV313 @ SV485 )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[2073]) ).

thf(2119,plain,
    ! [SV489: $i,SV486: $i,SV359: $i,SV313: $i] :
      ( ( ( ~ ( in @ ( ordered_pair @ SV313 @ SV359 ) @ ( cartesian_product2 @ SV486 @ SV489 ) ) )
        = $true )
      | ( ( in @ SV359 @ SV489 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2074]) ).

thf(2120,plain,
    ! [SV314: $i,SV420: $i,SV449: $i] :
      ( ( ( ~ ( in @ ( sK12_D @ SV449 @ SV420 @ SV314 ) @ SV314 )
          | ~ ( in @ ( sK12_D @ SV449 @ SV420 @ SV314 ) @ SV420 ) )
        = $true )
      | ( ( ~ ( in @ ( sK12_D @ SV449 @ SV420 @ SV314 ) @ SV449 ) )
        = $true )
      | ( ( SV449
          = ( set_intersection2 @ SV314 @ SV420 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2075]) ).

thf(2121,plain,
    ! [SV314: $i,SV420: $i,SV449: $i] :
      ( ( ( ~ ( ( in @ ( sK12_D @ SV449 @ SV420 @ SV314 ) @ SV314 )
              | ( in @ ( sK12_D @ SV449 @ SV420 @ SV314 ) @ SV449 ) )
          | ~ ( ( in @ ( sK12_D @ SV449 @ SV420 @ SV314 ) @ SV420 )
              | ( in @ ( sK12_D @ SV449 @ SV420 @ SV314 ) @ SV449 ) ) )
        = $false )
      | ( ( SV449
          = ( set_intersection2 @ SV314 @ SV420 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2076]) ).

thf(2122,plain,
    ! [SV450: $i,SV421: $i,SV314: $i] :
      ( ( ( ! [SY669: $i] :
              ( ~ ( in @ SY669 @ SV314 )
              | ~ ( in @ SY669 @ SV421 )
              | ( in @ SY669 @ SV450 ) ) )
        = $true )
      | ( ( SV450
          = ( set_intersection2 @ SV314 @ SV421 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[2077]) ).

thf(2123,plain,
    ! [SV421: $i,SV314: $i,SV450: $i] :
      ( ( ( ~ ( ~ ! [SY670: $i] :
                    ( ~ ( in @ SY670 @ SV450 )
                    | ( in @ SY670 @ SV314 ) )
              | ~ ! [SY671: $i] :
                    ( ~ ( in @ SY671 @ SV450 )
                    | ( in @ SY671 @ SV421 ) ) ) )
        = $true )
      | ( ( SV450
          = ( set_intersection2 @ SV314 @ SV421 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[2078]) ).

thf(2124,plain,
    ! [SV385: $i,SV422: $i] :
      ( ( ( in @ ( sK21_C @ SV422 @ SV385 ) @ SV422 )
        = $false )
      | ( ( ~ ( subset @ ( sK21_C @ SV422 @ SV385 ) @ SV385 ) )
        = $true )
      | ( ( SV422
          = ( powerset @ SV385 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2079]) ).

thf(2125,plain,
    ! [SV386: $i,SV423: $i,SV498: $i] :
      ( ( ( ~ ( in @ SV498 @ SV423 )
          | ( subset @ SV498 @ SV386 ) )
        = $true )
      | ( ( SV423
          = ( powerset @ SV386 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[2081]) ).

thf(2126,plain,
    ! [SV423: $i,SV386: $i,SV499: $i] :
      ( ( ( ~ ( subset @ SV499 @ SV386 )
          | ( in @ SV499 @ SV423 ) )
        = $true )
      | ( ( SV423
          = ( powerset @ SV386 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[2082]) ).

thf(2127,plain,
    ! [SV317: $i,SV426: $i,SV453: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK19_D @ SV453 @ SV426 @ SV317 ) @ SV453 )
              | ~ ( in @ ( sK19_D @ SV453 @ SV426 @ SV317 ) @ SV317 ) )
          | ~ ( ~ ( in @ ( sK19_D @ SV453 @ SV426 @ SV317 ) @ SV453 )
              | ~ ( in @ ( sK19_D @ SV453 @ SV426 @ SV317 ) @ SV426 ) ) )
        = $false )
      | ( ( SV453
          = ( set_union2 @ SV317 @ SV426 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2083]) ).

thf(2128,plain,
    ! [SV317: $i,SV426: $i,SV453: $i] :
      ( ( ( in @ ( sK19_D @ SV453 @ SV426 @ SV317 ) @ SV453 )
        = $true )
      | ( ( ( in @ ( sK19_D @ SV453 @ SV426 @ SV317 ) @ SV317 )
          | ( in @ ( sK19_D @ SV453 @ SV426 @ SV317 ) @ SV426 ) )
        = $true )
      | ( ( SV453
          = ( set_union2 @ SV317 @ SV426 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2084]) ).

thf(2129,plain,
    ! [SV427: $i,SV317: $i,SV454: $i] :
      ( ( ( ! [SY674: $i] :
              ( ~ ( in @ SY674 @ SV454 )
              | ( in @ SY674 @ SV317 )
              | ( in @ SY674 @ SV427 ) ) )
        = $true )
      | ( ( SV454
          = ( set_union2 @ SV317 @ SV427 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[2085]) ).

thf(2130,plain,
    ! [SV427: $i,SV454: $i,SV317: $i] :
      ( ( ( ~ ( ~ ! [SY675: $i] :
                    ( ~ ( in @ SY675 @ SV317 )
                    | ( in @ SY675 @ SV454 ) )
              | ~ ! [SY676: $i] :
                    ( ~ ( in @ SY676 @ SV427 )
                    | ( in @ SY676 @ SV454 ) ) ) )
        = $true )
      | ( ( SV454
          = ( set_union2 @ SV317 @ SV427 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[2086]) ).

thf(2131,plain,
    ! [SV487: $i,SV481: $i,SV318: $i] :
      ( ( ( subset @ ( unordered_pair @ SV318 @ SV481 ) @ SV487 )
        = $false )
      | ( ( in @ SV318 @ SV487 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2090]) ).

thf(2132,plain,
    ! [SV488: $i,SV482: $i,SV318: $i] :
      ( ( ( subset @ ( unordered_pair @ SV318 @ SV482 ) @ SV488 )
        = $false )
      | ( ( in @ SV482 @ SV488 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2091]) ).

thf(2133,plain,
    ! [SV319: $i,SV430: $i,SV456: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK20_D @ SV456 @ SV430 @ SV319 ) @ SV456 )
              | ( ( sK20_D @ SV456 @ SV430 @ SV319 )
               != SV319 ) )
          | ~ ( ~ ( in @ ( sK20_D @ SV456 @ SV430 @ SV319 ) @ SV456 )
              | ( ( sK20_D @ SV456 @ SV430 @ SV319 )
               != SV430 ) ) )
        = $false )
      | ( ( SV456
          = ( unordered_pair @ SV319 @ SV430 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2092]) ).

thf(2134,plain,
    ! [SV319: $i,SV430: $i,SV456: $i] :
      ( ( ( in @ ( sK20_D @ SV456 @ SV430 @ SV319 ) @ SV456 )
        = $true )
      | ( ( ( ( sK20_D @ SV456 @ SV430 @ SV319 )
            = SV319 )
          | ( ( sK20_D @ SV456 @ SV430 @ SV319 )
            = SV430 ) )
        = $true )
      | ( ( SV456
          = ( unordered_pair @ SV319 @ SV430 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2093]) ).

thf(2135,plain,
    ! [SV431: $i,SV319: $i,SV457: $i] :
      ( ( ( ! [SY677: $i] :
              ( ~ ( in @ SY677 @ SV457 )
              | ( SY677 = SV319 )
              | ( SY677 = SV431 ) ) )
        = $true )
      | ( ( SV457
          = ( unordered_pair @ SV319 @ SV431 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[2094]) ).

thf(2136,plain,
    ! [SV431: $i,SV457: $i,SV319: $i] :
      ( ( ( ~ ( ~ ! [SY678: $i] :
                    ( ( SY678 != SV319 )
                    | ( in @ SY678 @ SV457 ) )
              | ~ ! [SY679: $i] :
                    ( ( SY679 != SV431 )
                    | ( in @ SY679 @ SV457 ) ) ) )
        = $true )
      | ( ( SV457
          = ( unordered_pair @ SV319 @ SV431 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[2095]) ).

thf(2137,plain,
    ! [SV320: $i,SV432: $i,SV458: $i] :
      ( ( ( ~ ( in @ ( sK8_D @ SV458 @ SV432 @ SV320 ) @ SV320 )
          | ( in @ ( sK8_D @ SV458 @ SV432 @ SV320 ) @ SV432 ) )
        = $true )
      | ( ( ~ ( in @ ( sK8_D @ SV458 @ SV432 @ SV320 ) @ SV458 ) )
        = $true )
      | ( ( SV458
          = ( set_difference @ SV320 @ SV432 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2096]) ).

thf(2138,plain,
    ! [SV320: $i,SV432: $i,SV458: $i] :
      ( ( ( ~ ( ( in @ ( sK8_D @ SV458 @ SV432 @ SV320 ) @ SV320 )
              | ( in @ ( sK8_D @ SV458 @ SV432 @ SV320 ) @ SV458 ) )
          | ~ ( ~ ( in @ ( sK8_D @ SV458 @ SV432 @ SV320 ) @ SV432 )
              | ( in @ ( sK8_D @ SV458 @ SV432 @ SV320 ) @ SV458 ) ) )
        = $false )
      | ( ( SV458
          = ( set_difference @ SV320 @ SV432 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2097]) ).

thf(2139,plain,
    ! [SV459: $i,SV433: $i,SV320: $i] :
      ( ( ( ! [SY680: $i] :
              ( ~ ( in @ SY680 @ SV320 )
              | ( in @ SY680 @ SV433 )
              | ( in @ SY680 @ SV459 ) ) )
        = $true )
      | ( ( SV459
          = ( set_difference @ SV320 @ SV433 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[2098]) ).

thf(2140,plain,
    ! [SV433: $i,SV320: $i,SV459: $i] :
      ( ( ( ~ ( ~ ! [SY681: $i] :
                    ( ~ ( in @ SY681 @ SV459 )
                    | ( in @ SY681 @ SV320 ) )
              | ~ ! [SY682: $i] :
                    ( ~ ( in @ SY682 @ SV459 )
                    | ~ ( in @ SY682 @ SV433 ) ) ) )
        = $true )
      | ( ( SV459
          = ( set_difference @ SV320 @ SV433 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[2099]) ).

thf(2141,plain,
    ! [SV474: $i,SV445: $i,SV403: $i] :
      ( ( ( disjoint @ SV403 @ SV445 )
        = $false )
      | ( ( in @ SV474 @ SV403 )
        = $false )
      | ( ( in @ SV474 @ SV445 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2104]) ).

thf(2142,plain,
    ! [SV460: $i,SV446: $i,SV321: $i] :
      ( ( ( ! [SY683: $i,SY684: $i] :
              ( ~ ( in @ SY683 @ SV321 )
              | ~ ( in @ SY684 @ SV446 )
              | ( ( sK16_D @ SV460 @ SV446 @ SV321 )
               != ( ordered_pair @ SY683 @ SY684 ) ) ) )
        = $true )
      | ( ( ~ ( in @ ( sK16_D @ SV460 @ SV446 @ SV321 ) @ SV460 ) )
        = $true )
      | ( ( SV460
          = ( cartesian_product2 @ SV321 @ SV446 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2105]) ).

thf(2143,plain,
    ! [SV321: $i,SV446: $i,SV460: $i] :
      ( ( ( ~ ( ~ ~ ( ~ ( in @ ( sK17_SY205 @ SV460 @ SV446 @ SV321 ) @ SV321 )
                    | ~ ( in @ ( sK18_SY207 @ SV460 @ SV446 @ SV321 ) @ SV446 ) )
              | ( ( sK16_D @ SV460 @ SV446 @ SV321 )
               != ( ordered_pair @ ( sK17_SY205 @ SV460 @ SV446 @ SV321 ) @ ( sK18_SY207 @ SV460 @ SV446 @ SV321 ) ) ) ) )
        = $true )
      | ( ( in @ ( sK16_D @ SV460 @ SV446 @ SV321 ) @ SV460 )
        = $true )
      | ( ( SV460
          = ( cartesian_product2 @ SV321 @ SV446 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2106]) ).

thf(2144,plain,
    ! [SV461: $i,SV447: $i,SV321: $i] :
      ( ( ( ! [SY685: $i] :
              ( ! [SY665: $i,SY666: $i] :
                  ( ~ ( in @ SY665 @ SV321 )
                  | ~ ( in @ SY666 @ SV447 )
                  | ( SY685
                   != ( ordered_pair @ SY665 @ SY666 ) ) )
              | ( in @ SY685 @ SV461 ) ) )
        = $true )
      | ( ( SV461
          = ( cartesian_product2 @ SV321 @ SV447 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[2107]) ).

thf(2145,plain,
    ! [SV321: $i,SV447: $i,SV461: $i] :
      ( ( ( ! [SY688: $i] :
              ( ~ ( in @ SY688 @ SV461 )
              | ~ ( ~ ~ ( ~ ( in @ ( sK14_E @ SY688 @ SV461 @ SV447 @ SV321 ) @ SV321 )
                        | ~ ( in @ ( sK15_SY202 @ SY688 @ SV461 @ SV447 @ SV321 ) @ SV447 ) )
                  | ( SY688
                   != ( ordered_pair @ ( sK14_E @ SY688 @ SV461 @ SV447 @ SV321 ) @ ( sK15_SY202 @ SY688 @ SV461 @ SV447 @ SV321 ) ) ) ) ) )
        = $true )
      | ( ( SV461
          = ( cartesian_product2 @ SV321 @ SV447 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[2108]) ).

thf(2146,plain,
    ! [SV492: $i,SV372: $i,SV407: $i] :
      ( ( ( ~ ( in @ ( sK10_C @ SV407 @ SV372 ) @ SV492 ) )
        = $true )
      | ( ( ~ ( in @ SV492 @ SV372 ) )
        = $true )
      | ( ( ~ ( in @ ( sK10_C @ SV407 @ SV372 ) @ SV407 ) )
        = $true )
      | ( ( SV407
          = ( union @ SV372 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2109]) ).

thf(2147,plain,
    ! [SV372: $i,SV407: $i] :
      ( ( ( ~ ( in @ ( sK10_C @ SV407 @ SV372 ) @ ( sK11_SY201 @ SV407 @ SV372 ) ) )
        = $false )
      | ( ( in @ ( sK10_C @ SV407 @ SV372 ) @ SV407 )
        = $true )
      | ( ( SV407
          = ( union @ SV372 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[2110]) ).

thf(2148,plain,
    ! [SV372: $i,SV407: $i] :
      ( ( ( ~ ( in @ ( sK11_SY201 @ SV407 @ SV372 ) @ SV372 ) )
        = $false )
      | ( ( in @ ( sK10_C @ SV407 @ SV372 ) @ SV407 )
        = $true )
      | ( ( SV407
          = ( union @ SV372 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[2110]) ).

thf(2149,plain,
    ! [SV408: $i,SV373: $i,SV493: $i] :
      ( ( ( ! [SY701: $i] :
              ( ~ ( in @ SV493 @ SY701 )
              | ~ ( in @ SY701 @ SV373 ) ) )
        = $true )
      | ( ( in @ SV493 @ SV408 )
        = $true )
      | ( ( SV408
          = ( union @ SV373 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[2111]) ).

thf(2150,plain,
    ! [SV373: $i,SV408: $i,SV494: $i] :
      ( ( ( ~ ( in @ SV494 @ SV408 ) )
        = $true )
      | ( ( ~ ( ~ ( in @ SV494 @ ( sK9_D @ SV494 @ SV408 @ SV373 ) )
              | ~ ( in @ ( sK9_D @ SV494 @ SV408 @ SV373 ) @ SV373 ) ) )
        = $true )
      | ( ( SV408
          = ( union @ SV373 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[2112]) ).

thf(2151,plain,
    ! [SV378: $i,SV413: $i] :
      ( ( ( in @ ( sK23_C @ SV413 @ SV378 ) @ SV413 )
        = $false )
      | ( ( ( sK23_C @ SV413 @ SV378 )
          = SV378 )
        = $false )
      | ( ( SV413
          = ( singleton @ SV378 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2113]) ).

thf(2152,plain,
    ! [SV414: $i,SV379: $i,SV495: $i] :
      ( ( ( ( SV495 != SV379 ) )
        = $true )
      | ( ( in @ SV495 @ SV414 )
        = $true )
      | ( ( SV414
          = ( singleton @ SV379 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[2114]) ).

thf(2153,plain,
    ! [SV379: $i,SV414: $i,SV496: $i] :
      ( ( ( ~ ( in @ SV496 @ SV414 ) )
        = $true )
      | ( ( SV496 = SV379 )
        = $true )
      | ( ( SV414
          = ( singleton @ SV379 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[2115]) ).

thf(2154,plain,
    ! [SV497: $i,SV485: $i,SV359: $i,SV313: $i] :
      ( ( ( in @ ( ordered_pair @ SV313 @ SV359 ) @ ( cartesian_product2 @ SV485 @ SV497 ) )
        = $false )
      | ( ( in @ SV313 @ SV485 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2118]) ).

thf(2155,plain,
    ! [SV489: $i,SV486: $i,SV359: $i,SV313: $i] :
      ( ( ( in @ ( ordered_pair @ SV313 @ SV359 ) @ ( cartesian_product2 @ SV486 @ SV489 ) )
        = $false )
      | ( ( in @ SV359 @ SV489 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2119]) ).

thf(2156,plain,
    ! [SV314: $i,SV420: $i,SV449: $i] :
      ( ( ( ~ ( in @ ( sK12_D @ SV449 @ SV420 @ SV314 ) @ SV314 ) )
        = $true )
      | ( ( ~ ( in @ ( sK12_D @ SV449 @ SV420 @ SV314 ) @ SV420 ) )
        = $true )
      | ( ( ~ ( in @ ( sK12_D @ SV449 @ SV420 @ SV314 ) @ SV449 ) )
        = $true )
      | ( ( SV449
          = ( set_intersection2 @ SV314 @ SV420 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2120]) ).

thf(2157,plain,
    ! [SV314: $i,SV420: $i,SV449: $i] :
      ( ( ( ~ ( ( in @ ( sK12_D @ SV449 @ SV420 @ SV314 ) @ SV314 )
              | ( in @ ( sK12_D @ SV449 @ SV420 @ SV314 ) @ SV449 ) ) )
        = $false )
      | ( ( SV449
          = ( set_intersection2 @ SV314 @ SV420 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[2121]) ).

thf(2158,plain,
    ! [SV314: $i,SV420: $i,SV449: $i] :
      ( ( ( ~ ( ( in @ ( sK12_D @ SV449 @ SV420 @ SV314 ) @ SV420 )
              | ( in @ ( sK12_D @ SV449 @ SV420 @ SV314 ) @ SV449 ) ) )
        = $false )
      | ( ( SV449
          = ( set_intersection2 @ SV314 @ SV420 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[2121]) ).

thf(2159,plain,
    ! [SV450: $i,SV421: $i,SV314: $i,SV500: $i] :
      ( ( ( ~ ( in @ SV500 @ SV314 )
          | ~ ( in @ SV500 @ SV421 )
          | ( in @ SV500 @ SV450 ) )
        = $true )
      | ( ( SV450
          = ( set_intersection2 @ SV314 @ SV421 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[2122]) ).

thf(2160,plain,
    ! [SV421: $i,SV314: $i,SV450: $i] :
      ( ( ( ~ ! [SY670: $i] :
                ( ~ ( in @ SY670 @ SV450 )
                | ( in @ SY670 @ SV314 ) )
          | ~ ! [SY671: $i] :
                ( ~ ( in @ SY671 @ SV450 )
                | ( in @ SY671 @ SV421 ) ) )
        = $false )
      | ( ( SV450
          = ( set_intersection2 @ SV314 @ SV421 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2123]) ).

thf(2161,plain,
    ! [SV385: $i,SV422: $i] :
      ( ( ( subset @ ( sK21_C @ SV422 @ SV385 ) @ SV385 )
        = $false )
      | ( ( in @ ( sK21_C @ SV422 @ SV385 ) @ SV422 )
        = $false )
      | ( ( SV422
          = ( powerset @ SV385 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2124]) ).

thf(2162,plain,
    ! [SV386: $i,SV423: $i,SV498: $i] :
      ( ( ( ~ ( in @ SV498 @ SV423 ) )
        = $true )
      | ( ( subset @ SV498 @ SV386 )
        = $true )
      | ( ( SV423
          = ( powerset @ SV386 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[2125]) ).

thf(2163,plain,
    ! [SV423: $i,SV386: $i,SV499: $i] :
      ( ( ( ~ ( subset @ SV499 @ SV386 ) )
        = $true )
      | ( ( in @ SV499 @ SV423 )
        = $true )
      | ( ( SV423
          = ( powerset @ SV386 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[2126]) ).

thf(2164,plain,
    ! [SV317: $i,SV426: $i,SV453: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK19_D @ SV453 @ SV426 @ SV317 ) @ SV453 )
              | ~ ( in @ ( sK19_D @ SV453 @ SV426 @ SV317 ) @ SV317 ) ) )
        = $false )
      | ( ( SV453
          = ( set_union2 @ SV317 @ SV426 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[2127]) ).

thf(2165,plain,
    ! [SV317: $i,SV426: $i,SV453: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK19_D @ SV453 @ SV426 @ SV317 ) @ SV453 )
              | ~ ( in @ ( sK19_D @ SV453 @ SV426 @ SV317 ) @ SV426 ) ) )
        = $false )
      | ( ( SV453
          = ( set_union2 @ SV317 @ SV426 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[2127]) ).

thf(2166,plain,
    ! [SV317: $i,SV426: $i,SV453: $i] :
      ( ( ( in @ ( sK19_D @ SV453 @ SV426 @ SV317 ) @ SV317 )
        = $true )
      | ( ( in @ ( sK19_D @ SV453 @ SV426 @ SV317 ) @ SV426 )
        = $true )
      | ( ( in @ ( sK19_D @ SV453 @ SV426 @ SV317 ) @ SV453 )
        = $true )
      | ( ( SV453
          = ( set_union2 @ SV317 @ SV426 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2128]) ).

thf(2167,plain,
    ! [SV427: $i,SV317: $i,SV454: $i,SV501: $i] :
      ( ( ( ~ ( in @ SV501 @ SV454 )
          | ( in @ SV501 @ SV317 )
          | ( in @ SV501 @ SV427 ) )
        = $true )
      | ( ( SV454
          = ( set_union2 @ SV317 @ SV427 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[2129]) ).

thf(2168,plain,
    ! [SV427: $i,SV454: $i,SV317: $i] :
      ( ( ( ~ ! [SY675: $i] :
                ( ~ ( in @ SY675 @ SV317 )
                | ( in @ SY675 @ SV454 ) )
          | ~ ! [SY676: $i] :
                ( ~ ( in @ SY676 @ SV427 )
                | ( in @ SY676 @ SV454 ) ) )
        = $false )
      | ( ( SV454
          = ( set_union2 @ SV317 @ SV427 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2130]) ).

thf(2169,plain,
    ! [SV319: $i,SV430: $i,SV456: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK20_D @ SV456 @ SV430 @ SV319 ) @ SV456 )
              | ( ( sK20_D @ SV456 @ SV430 @ SV319 )
               != SV319 ) ) )
        = $false )
      | ( ( SV456
          = ( unordered_pair @ SV319 @ SV430 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[2133]) ).

thf(2170,plain,
    ! [SV319: $i,SV430: $i,SV456: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK20_D @ SV456 @ SV430 @ SV319 ) @ SV456 )
              | ( ( sK20_D @ SV456 @ SV430 @ SV319 )
               != SV430 ) ) )
        = $false )
      | ( ( SV456
          = ( unordered_pair @ SV319 @ SV430 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[2133]) ).

thf(2171,plain,
    ! [SV319: $i,SV430: $i,SV456: $i] :
      ( ( ( ( sK20_D @ SV456 @ SV430 @ SV319 )
          = SV319 )
        = $true )
      | ( ( ( sK20_D @ SV456 @ SV430 @ SV319 )
          = SV430 )
        = $true )
      | ( ( in @ ( sK20_D @ SV456 @ SV430 @ SV319 ) @ SV456 )
        = $true )
      | ( ( SV456
          = ( unordered_pair @ SV319 @ SV430 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2134]) ).

thf(2172,plain,
    ! [SV431: $i,SV319: $i,SV457: $i,SV502: $i] :
      ( ( ( ~ ( in @ SV502 @ SV457 )
          | ( SV502 = SV319 )
          | ( SV502 = SV431 ) )
        = $true )
      | ( ( SV457
          = ( unordered_pair @ SV319 @ SV431 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[2135]) ).

thf(2173,plain,
    ! [SV431: $i,SV457: $i,SV319: $i] :
      ( ( ( ~ ! [SY678: $i] :
                ( ( SY678 != SV319 )
                | ( in @ SY678 @ SV457 ) )
          | ~ ! [SY679: $i] :
                ( ( SY679 != SV431 )
                | ( in @ SY679 @ SV457 ) ) )
        = $false )
      | ( ( SV457
          = ( unordered_pair @ SV319 @ SV431 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2136]) ).

thf(2174,plain,
    ! [SV320: $i,SV432: $i,SV458: $i] :
      ( ( ( ~ ( in @ ( sK8_D @ SV458 @ SV432 @ SV320 ) @ SV320 ) )
        = $true )
      | ( ( in @ ( sK8_D @ SV458 @ SV432 @ SV320 ) @ SV432 )
        = $true )
      | ( ( ~ ( in @ ( sK8_D @ SV458 @ SV432 @ SV320 ) @ SV458 ) )
        = $true )
      | ( ( SV458
          = ( set_difference @ SV320 @ SV432 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2137]) ).

thf(2175,plain,
    ! [SV320: $i,SV432: $i,SV458: $i] :
      ( ( ( ~ ( ( in @ ( sK8_D @ SV458 @ SV432 @ SV320 ) @ SV320 )
              | ( in @ ( sK8_D @ SV458 @ SV432 @ SV320 ) @ SV458 ) ) )
        = $false )
      | ( ( SV458
          = ( set_difference @ SV320 @ SV432 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[2138]) ).

thf(2176,plain,
    ! [SV320: $i,SV432: $i,SV458: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK8_D @ SV458 @ SV432 @ SV320 ) @ SV432 )
              | ( in @ ( sK8_D @ SV458 @ SV432 @ SV320 ) @ SV458 ) ) )
        = $false )
      | ( ( SV458
          = ( set_difference @ SV320 @ SV432 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[2138]) ).

thf(2177,plain,
    ! [SV459: $i,SV433: $i,SV320: $i,SV503: $i] :
      ( ( ( ~ ( in @ SV503 @ SV320 )
          | ( in @ SV503 @ SV433 )
          | ( in @ SV503 @ SV459 ) )
        = $true )
      | ( ( SV459
          = ( set_difference @ SV320 @ SV433 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[2139]) ).

thf(2178,plain,
    ! [SV433: $i,SV320: $i,SV459: $i] :
      ( ( ( ~ ! [SY681: $i] :
                ( ~ ( in @ SY681 @ SV459 )
                | ( in @ SY681 @ SV320 ) )
          | ~ ! [SY682: $i] :
                ( ~ ( in @ SY682 @ SV459 )
                | ~ ( in @ SY682 @ SV433 ) ) )
        = $false )
      | ( ( SV459
          = ( set_difference @ SV320 @ SV433 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2140]) ).

thf(2179,plain,
    ! [SV460: $i,SV446: $i,SV321: $i,SV504: $i] :
      ( ( ( ! [SY702: $i] :
              ( ~ ( in @ SV504 @ SV321 )
              | ~ ( in @ SY702 @ SV446 )
              | ( ( sK16_D @ SV460 @ SV446 @ SV321 )
               != ( ordered_pair @ SV504 @ SY702 ) ) ) )
        = $true )
      | ( ( ~ ( in @ ( sK16_D @ SV460 @ SV446 @ SV321 ) @ SV460 ) )
        = $true )
      | ( ( SV460
          = ( cartesian_product2 @ SV321 @ SV446 ) )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[2142]) ).

thf(2180,plain,
    ! [SV321: $i,SV446: $i,SV460: $i] :
      ( ( ( ~ ~ ( ~ ( in @ ( sK17_SY205 @ SV460 @ SV446 @ SV321 ) @ SV321 )
                | ~ ( in @ ( sK18_SY207 @ SV460 @ SV446 @ SV321 ) @ SV446 ) )
          | ( ( sK16_D @ SV460 @ SV446 @ SV321 )
           != ( ordered_pair @ ( sK17_SY205 @ SV460 @ SV446 @ SV321 ) @ ( sK18_SY207 @ SV460 @ SV446 @ SV321 ) ) ) )
        = $false )
      | ( ( in @ ( sK16_D @ SV460 @ SV446 @ SV321 ) @ SV460 )
        = $true )
      | ( ( SV460
          = ( cartesian_product2 @ SV321 @ SV446 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2143]) ).

thf(2181,plain,
    ! [SV461: $i,SV505: $i,SV447: $i,SV321: $i] :
      ( ( ( ! [SY703: $i,SY704: $i] :
              ( ~ ( in @ SY703 @ SV321 )
              | ~ ( in @ SY704 @ SV447 )
              | ( SV505
               != ( ordered_pair @ SY703 @ SY704 ) ) )
          | ( in @ SV505 @ SV461 ) )
        = $true )
      | ( ( SV461
          = ( cartesian_product2 @ SV321 @ SV447 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[2144]) ).

thf(2182,plain,
    ! [SV321: $i,SV447: $i,SV461: $i,SV506: $i] :
      ( ( ( ~ ( in @ SV506 @ SV461 )
          | ~ ( ~ ~ ( ~ ( in @ ( sK14_E @ SV506 @ SV461 @ SV447 @ SV321 ) @ SV321 )
                    | ~ ( in @ ( sK15_SY202 @ SV506 @ SV461 @ SV447 @ SV321 ) @ SV447 ) )
              | ( SV506
               != ( ordered_pair @ ( sK14_E @ SV506 @ SV461 @ SV447 @ SV321 ) @ ( sK15_SY202 @ SV506 @ SV461 @ SV447 @ SV321 ) ) ) ) )
        = $true )
      | ( ( SV461
          = ( cartesian_product2 @ SV321 @ SV447 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[2145]) ).

thf(2183,plain,
    ! [SV492: $i,SV372: $i,SV407: $i] :
      ( ( ( in @ ( sK10_C @ SV407 @ SV372 ) @ SV492 )
        = $false )
      | ( ( ~ ( in @ SV492 @ SV372 ) )
        = $true )
      | ( ( ~ ( in @ ( sK10_C @ SV407 @ SV372 ) @ SV407 ) )
        = $true )
      | ( ( SV407
          = ( union @ SV372 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2146]) ).

thf(2184,plain,
    ! [SV372: $i,SV407: $i] :
      ( ( ( in @ ( sK10_C @ SV407 @ SV372 ) @ ( sK11_SY201 @ SV407 @ SV372 ) )
        = $true )
      | ( ( in @ ( sK10_C @ SV407 @ SV372 ) @ SV407 )
        = $true )
      | ( ( SV407
          = ( union @ SV372 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[2147]) ).

thf(2185,plain,
    ! [SV372: $i,SV407: $i] :
      ( ( ( in @ ( sK11_SY201 @ SV407 @ SV372 ) @ SV372 )
        = $true )
      | ( ( in @ ( sK10_C @ SV407 @ SV372 ) @ SV407 )
        = $true )
      | ( ( SV407
          = ( union @ SV372 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[2148]) ).

thf(2186,plain,
    ! [SV408: $i,SV373: $i,SV507: $i,SV493: $i] :
      ( ( ( ~ ( in @ SV493 @ SV507 )
          | ~ ( in @ SV507 @ SV373 ) )
        = $true )
      | ( ( in @ SV493 @ SV408 )
        = $true )
      | ( ( SV408
          = ( union @ SV373 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[2149]) ).

thf(2187,plain,
    ! [SV373: $i,SV408: $i,SV494: $i] :
      ( ( ( in @ SV494 @ SV408 )
        = $false )
      | ( ( ~ ( ~ ( in @ SV494 @ ( sK9_D @ SV494 @ SV408 @ SV373 ) )
              | ~ ( in @ ( sK9_D @ SV494 @ SV408 @ SV373 ) @ SV373 ) ) )
        = $true )
      | ( ( SV408
          = ( union @ SV373 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2150]) ).

thf(2188,plain,
    ! [SV414: $i,SV379: $i,SV495: $i] :
      ( ( ( SV495 = SV379 )
        = $false )
      | ( ( in @ SV495 @ SV414 )
        = $true )
      | ( ( SV414
          = ( singleton @ SV379 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2152]) ).

thf(2189,plain,
    ! [SV379: $i,SV414: $i,SV496: $i] :
      ( ( ( in @ SV496 @ SV414 )
        = $false )
      | ( ( SV496 = SV379 )
        = $true )
      | ( ( SV414
          = ( singleton @ SV379 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2153]) ).

thf(2190,plain,
    ! [SV314: $i,SV420: $i,SV449: $i] :
      ( ( ( in @ ( sK12_D @ SV449 @ SV420 @ SV314 ) @ SV314 )
        = $false )
      | ( ( ~ ( in @ ( sK12_D @ SV449 @ SV420 @ SV314 ) @ SV420 ) )
        = $true )
      | ( ( ~ ( in @ ( sK12_D @ SV449 @ SV420 @ SV314 ) @ SV449 ) )
        = $true )
      | ( ( SV449
          = ( set_intersection2 @ SV314 @ SV420 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2156]) ).

thf(2191,plain,
    ! [SV314: $i,SV420: $i,SV449: $i] :
      ( ( ( ( in @ ( sK12_D @ SV449 @ SV420 @ SV314 ) @ SV314 )
          | ( in @ ( sK12_D @ SV449 @ SV420 @ SV314 ) @ SV449 ) )
        = $true )
      | ( ( SV449
          = ( set_intersection2 @ SV314 @ SV420 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[2157]) ).

thf(2192,plain,
    ! [SV314: $i,SV420: $i,SV449: $i] :
      ( ( ( ( in @ ( sK12_D @ SV449 @ SV420 @ SV314 ) @ SV420 )
          | ( in @ ( sK12_D @ SV449 @ SV420 @ SV314 ) @ SV449 ) )
        = $true )
      | ( ( SV449
          = ( set_intersection2 @ SV314 @ SV420 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[2158]) ).

thf(2193,plain,
    ! [SV450: $i,SV421: $i,SV314: $i,SV500: $i] :
      ( ( ( ~ ( in @ SV500 @ SV314 )
          | ~ ( in @ SV500 @ SV421 ) )
        = $true )
      | ( ( in @ SV500 @ SV450 )
        = $true )
      | ( ( SV450
          = ( set_intersection2 @ SV314 @ SV421 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[2159]) ).

thf(2194,plain,
    ! [SV421: $i,SV314: $i,SV450: $i] :
      ( ( ( ~ ! [SY670: $i] :
                ( ~ ( in @ SY670 @ SV450 )
                | ( in @ SY670 @ SV314 ) ) )
        = $false )
      | ( ( SV450
          = ( set_intersection2 @ SV314 @ SV421 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[2160]) ).

thf(2195,plain,
    ! [SV314: $i,SV421: $i,SV450: $i] :
      ( ( ( ~ ! [SY671: $i] :
                ( ~ ( in @ SY671 @ SV450 )
                | ( in @ SY671 @ SV421 ) ) )
        = $false )
      | ( ( SV450
          = ( set_intersection2 @ SV314 @ SV421 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[2160]) ).

thf(2196,plain,
    ! [SV386: $i,SV423: $i,SV498: $i] :
      ( ( ( in @ SV498 @ SV423 )
        = $false )
      | ( ( subset @ SV498 @ SV386 )
        = $true )
      | ( ( SV423
          = ( powerset @ SV386 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2162]) ).

thf(2197,plain,
    ! [SV423: $i,SV386: $i,SV499: $i] :
      ( ( ( subset @ SV499 @ SV386 )
        = $false )
      | ( ( in @ SV499 @ SV423 )
        = $true )
      | ( ( SV423
          = ( powerset @ SV386 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2163]) ).

thf(2198,plain,
    ! [SV317: $i,SV426: $i,SV453: $i] :
      ( ( ( ~ ( in @ ( sK19_D @ SV453 @ SV426 @ SV317 ) @ SV453 )
          | ~ ( in @ ( sK19_D @ SV453 @ SV426 @ SV317 ) @ SV317 ) )
        = $true )
      | ( ( SV453
          = ( set_union2 @ SV317 @ SV426 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[2164]) ).

thf(2199,plain,
    ! [SV317: $i,SV426: $i,SV453: $i] :
      ( ( ( ~ ( in @ ( sK19_D @ SV453 @ SV426 @ SV317 ) @ SV453 )
          | ~ ( in @ ( sK19_D @ SV453 @ SV426 @ SV317 ) @ SV426 ) )
        = $true )
      | ( ( SV453
          = ( set_union2 @ SV317 @ SV426 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[2165]) ).

thf(2200,plain,
    ! [SV427: $i,SV317: $i,SV454: $i,SV501: $i] :
      ( ( ( ~ ( in @ SV501 @ SV454 ) )
        = $true )
      | ( ( ( in @ SV501 @ SV317 )
          | ( in @ SV501 @ SV427 ) )
        = $true )
      | ( ( SV454
          = ( set_union2 @ SV317 @ SV427 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[2167]) ).

thf(2201,plain,
    ! [SV427: $i,SV454: $i,SV317: $i] :
      ( ( ( ~ ! [SY675: $i] :
                ( ~ ( in @ SY675 @ SV317 )
                | ( in @ SY675 @ SV454 ) ) )
        = $false )
      | ( ( SV454
          = ( set_union2 @ SV317 @ SV427 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[2168]) ).

thf(2202,plain,
    ! [SV317: $i,SV454: $i,SV427: $i] :
      ( ( ( ~ ! [SY676: $i] :
                ( ~ ( in @ SY676 @ SV427 )
                | ( in @ SY676 @ SV454 ) ) )
        = $false )
      | ( ( SV454
          = ( set_union2 @ SV317 @ SV427 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[2168]) ).

thf(2203,plain,
    ! [SV319: $i,SV430: $i,SV456: $i] :
      ( ( ( ~ ( in @ ( sK20_D @ SV456 @ SV430 @ SV319 ) @ SV456 )
          | ( ( sK20_D @ SV456 @ SV430 @ SV319 )
           != SV319 ) )
        = $true )
      | ( ( SV456
          = ( unordered_pair @ SV319 @ SV430 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[2169]) ).

thf(2204,plain,
    ! [SV319: $i,SV430: $i,SV456: $i] :
      ( ( ( ~ ( in @ ( sK20_D @ SV456 @ SV430 @ SV319 ) @ SV456 )
          | ( ( sK20_D @ SV456 @ SV430 @ SV319 )
           != SV430 ) )
        = $true )
      | ( ( SV456
          = ( unordered_pair @ SV319 @ SV430 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[2170]) ).

thf(2205,plain,
    ! [SV431: $i,SV319: $i,SV457: $i,SV502: $i] :
      ( ( ( ~ ( in @ SV502 @ SV457 ) )
        = $true )
      | ( ( ( SV502 = SV319 )
          | ( SV502 = SV431 ) )
        = $true )
      | ( ( SV457
          = ( unordered_pair @ SV319 @ SV431 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[2172]) ).

thf(2206,plain,
    ! [SV431: $i,SV457: $i,SV319: $i] :
      ( ( ( ~ ! [SY678: $i] :
                ( ( SY678 != SV319 )
                | ( in @ SY678 @ SV457 ) ) )
        = $false )
      | ( ( SV457
          = ( unordered_pair @ SV319 @ SV431 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[2173]) ).

thf(2207,plain,
    ! [SV319: $i,SV457: $i,SV431: $i] :
      ( ( ( ~ ! [SY679: $i] :
                ( ( SY679 != SV431 )
                | ( in @ SY679 @ SV457 ) ) )
        = $false )
      | ( ( SV457
          = ( unordered_pair @ SV319 @ SV431 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[2173]) ).

thf(2208,plain,
    ! [SV320: $i,SV432: $i,SV458: $i] :
      ( ( ( in @ ( sK8_D @ SV458 @ SV432 @ SV320 ) @ SV320 )
        = $false )
      | ( ( in @ ( sK8_D @ SV458 @ SV432 @ SV320 ) @ SV432 )
        = $true )
      | ( ( ~ ( in @ ( sK8_D @ SV458 @ SV432 @ SV320 ) @ SV458 ) )
        = $true )
      | ( ( SV458
          = ( set_difference @ SV320 @ SV432 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2174]) ).

thf(2209,plain,
    ! [SV320: $i,SV432: $i,SV458: $i] :
      ( ( ( ( in @ ( sK8_D @ SV458 @ SV432 @ SV320 ) @ SV320 )
          | ( in @ ( sK8_D @ SV458 @ SV432 @ SV320 ) @ SV458 ) )
        = $true )
      | ( ( SV458
          = ( set_difference @ SV320 @ SV432 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[2175]) ).

thf(2210,plain,
    ! [SV320: $i,SV432: $i,SV458: $i] :
      ( ( ( ~ ( in @ ( sK8_D @ SV458 @ SV432 @ SV320 ) @ SV432 )
          | ( in @ ( sK8_D @ SV458 @ SV432 @ SV320 ) @ SV458 ) )
        = $true )
      | ( ( SV458
          = ( set_difference @ SV320 @ SV432 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[2176]) ).

thf(2211,plain,
    ! [SV459: $i,SV433: $i,SV320: $i,SV503: $i] :
      ( ( ( ~ ( in @ SV503 @ SV320 )
          | ( in @ SV503 @ SV433 ) )
        = $true )
      | ( ( in @ SV503 @ SV459 )
        = $true )
      | ( ( SV459
          = ( set_difference @ SV320 @ SV433 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[2177]) ).

thf(2212,plain,
    ! [SV433: $i,SV320: $i,SV459: $i] :
      ( ( ( ~ ! [SY681: $i] :
                ( ~ ( in @ SY681 @ SV459 )
                | ( in @ SY681 @ SV320 ) ) )
        = $false )
      | ( ( SV459
          = ( set_difference @ SV320 @ SV433 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[2178]) ).

thf(2213,plain,
    ! [SV320: $i,SV433: $i,SV459: $i] :
      ( ( ( ~ ! [SY682: $i] :
                ( ~ ( in @ SY682 @ SV459 )
                | ~ ( in @ SY682 @ SV433 ) ) )
        = $false )
      | ( ( SV459
          = ( set_difference @ SV320 @ SV433 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[2178]) ).

thf(2214,plain,
    ! [SV460: $i,SV446: $i,SV508: $i,SV321: $i,SV504: $i] :
      ( ( ( ~ ( in @ SV504 @ SV321 )
          | ~ ( in @ SV508 @ SV446 )
          | ( ( sK16_D @ SV460 @ SV446 @ SV321 )
           != ( ordered_pair @ SV504 @ SV508 ) ) )
        = $true )
      | ( ( ~ ( in @ ( sK16_D @ SV460 @ SV446 @ SV321 ) @ SV460 ) )
        = $true )
      | ( ( SV460
          = ( cartesian_product2 @ SV321 @ SV446 ) )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[2179]) ).

thf(2215,plain,
    ! [SV321: $i,SV446: $i,SV460: $i] :
      ( ( ( ~ ~ ( ~ ( in @ ( sK17_SY205 @ SV460 @ SV446 @ SV321 ) @ SV321 )
                | ~ ( in @ ( sK18_SY207 @ SV460 @ SV446 @ SV321 ) @ SV446 ) ) )
        = $false )
      | ( ( in @ ( sK16_D @ SV460 @ SV446 @ SV321 ) @ SV460 )
        = $true )
      | ( ( SV460
          = ( cartesian_product2 @ SV321 @ SV446 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[2180]) ).

thf(2216,plain,
    ! [SV321: $i,SV446: $i,SV460: $i] :
      ( ( ( ( ( sK16_D @ SV460 @ SV446 @ SV321 )
           != ( ordered_pair @ ( sK17_SY205 @ SV460 @ SV446 @ SV321 ) @ ( sK18_SY207 @ SV460 @ SV446 @ SV321 ) ) ) )
        = $false )
      | ( ( in @ ( sK16_D @ SV460 @ SV446 @ SV321 ) @ SV460 )
        = $true )
      | ( ( SV460
          = ( cartesian_product2 @ SV321 @ SV446 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[2180]) ).

thf(2217,plain,
    ! [SV461: $i,SV505: $i,SV447: $i,SV321: $i] :
      ( ( ( ! [SY703: $i,SY704: $i] :
              ( ~ ( in @ SY703 @ SV321 )
              | ~ ( in @ SY704 @ SV447 )
              | ( SV505
               != ( ordered_pair @ SY703 @ SY704 ) ) ) )
        = $true )
      | ( ( in @ SV505 @ SV461 )
        = $true )
      | ( ( SV461
          = ( cartesian_product2 @ SV321 @ SV447 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[2181]) ).

thf(2218,plain,
    ! [SV321: $i,SV447: $i,SV461: $i,SV506: $i] :
      ( ( ( ~ ( in @ SV506 @ SV461 ) )
        = $true )
      | ( ( ~ ( ~ ~ ( ~ ( in @ ( sK14_E @ SV506 @ SV461 @ SV447 @ SV321 ) @ SV321 )
                    | ~ ( in @ ( sK15_SY202 @ SV506 @ SV461 @ SV447 @ SV321 ) @ SV447 ) )
              | ( SV506
               != ( ordered_pair @ ( sK14_E @ SV506 @ SV461 @ SV447 @ SV321 ) @ ( sK15_SY202 @ SV506 @ SV461 @ SV447 @ SV321 ) ) ) ) )
        = $true )
      | ( ( SV461
          = ( cartesian_product2 @ SV321 @ SV447 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[2182]) ).

thf(2219,plain,
    ! [SV407: $i,SV372: $i,SV492: $i] :
      ( ( ( in @ SV492 @ SV372 )
        = $false )
      | ( ( in @ ( sK10_C @ SV407 @ SV372 ) @ SV492 )
        = $false )
      | ( ( ~ ( in @ ( sK10_C @ SV407 @ SV372 ) @ SV407 ) )
        = $true )
      | ( ( SV407
          = ( union @ SV372 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2183]) ).

thf(2220,plain,
    ! [SV408: $i,SV373: $i,SV507: $i,SV493: $i] :
      ( ( ( ~ ( in @ SV493 @ SV507 ) )
        = $true )
      | ( ( ~ ( in @ SV507 @ SV373 ) )
        = $true )
      | ( ( in @ SV493 @ SV408 )
        = $true )
      | ( ( SV408
          = ( union @ SV373 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[2186]) ).

thf(2221,plain,
    ! [SV373: $i,SV408: $i,SV494: $i] :
      ( ( ( ~ ( in @ SV494 @ ( sK9_D @ SV494 @ SV408 @ SV373 ) )
          | ~ ( in @ ( sK9_D @ SV494 @ SV408 @ SV373 ) @ SV373 ) )
        = $false )
      | ( ( in @ SV494 @ SV408 )
        = $false )
      | ( ( SV408
          = ( union @ SV373 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2187]) ).

thf(2222,plain,
    ! [SV314: $i,SV420: $i,SV449: $i] :
      ( ( ( in @ ( sK12_D @ SV449 @ SV420 @ SV314 ) @ SV420 )
        = $false )
      | ( ( in @ ( sK12_D @ SV449 @ SV420 @ SV314 ) @ SV314 )
        = $false )
      | ( ( ~ ( in @ ( sK12_D @ SV449 @ SV420 @ SV314 ) @ SV449 ) )
        = $true )
      | ( ( SV449
          = ( set_intersection2 @ SV314 @ SV420 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2190]) ).

thf(2223,plain,
    ! [SV314: $i,SV420: $i,SV449: $i] :
      ( ( ( in @ ( sK12_D @ SV449 @ SV420 @ SV314 ) @ SV314 )
        = $true )
      | ( ( in @ ( sK12_D @ SV449 @ SV420 @ SV314 ) @ SV449 )
        = $true )
      | ( ( SV449
          = ( set_intersection2 @ SV314 @ SV420 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2191]) ).

thf(2224,plain,
    ! [SV314: $i,SV420: $i,SV449: $i] :
      ( ( ( in @ ( sK12_D @ SV449 @ SV420 @ SV314 ) @ SV420 )
        = $true )
      | ( ( in @ ( sK12_D @ SV449 @ SV420 @ SV314 ) @ SV449 )
        = $true )
      | ( ( SV449
          = ( set_intersection2 @ SV314 @ SV420 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2192]) ).

thf(2225,plain,
    ! [SV450: $i,SV421: $i,SV314: $i,SV500: $i] :
      ( ( ( ~ ( in @ SV500 @ SV314 ) )
        = $true )
      | ( ( ~ ( in @ SV500 @ SV421 ) )
        = $true )
      | ( ( in @ SV500 @ SV450 )
        = $true )
      | ( ( SV450
          = ( set_intersection2 @ SV314 @ SV421 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[2193]) ).

thf(2226,plain,
    ! [SV421: $i,SV314: $i,SV450: $i] :
      ( ( ( ! [SY670: $i] :
              ( ~ ( in @ SY670 @ SV450 )
              | ( in @ SY670 @ SV314 ) ) )
        = $true )
      | ( ( SV450
          = ( set_intersection2 @ SV314 @ SV421 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[2194]) ).

thf(2227,plain,
    ! [SV314: $i,SV421: $i,SV450: $i] :
      ( ( ( ! [SY671: $i] :
              ( ~ ( in @ SY671 @ SV450 )
              | ( in @ SY671 @ SV421 ) ) )
        = $true )
      | ( ( SV450
          = ( set_intersection2 @ SV314 @ SV421 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[2195]) ).

thf(2228,plain,
    ! [SV317: $i,SV426: $i,SV453: $i] :
      ( ( ( ~ ( in @ ( sK19_D @ SV453 @ SV426 @ SV317 ) @ SV453 ) )
        = $true )
      | ( ( ~ ( in @ ( sK19_D @ SV453 @ SV426 @ SV317 ) @ SV317 ) )
        = $true )
      | ( ( SV453
          = ( set_union2 @ SV317 @ SV426 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2198]) ).

thf(2229,plain,
    ! [SV317: $i,SV426: $i,SV453: $i] :
      ( ( ( ~ ( in @ ( sK19_D @ SV453 @ SV426 @ SV317 ) @ SV453 ) )
        = $true )
      | ( ( ~ ( in @ ( sK19_D @ SV453 @ SV426 @ SV317 ) @ SV426 ) )
        = $true )
      | ( ( SV453
          = ( set_union2 @ SV317 @ SV426 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2199]) ).

thf(2230,plain,
    ! [SV427: $i,SV317: $i,SV454: $i,SV501: $i] :
      ( ( ( in @ SV501 @ SV454 )
        = $false )
      | ( ( ( in @ SV501 @ SV317 )
          | ( in @ SV501 @ SV427 ) )
        = $true )
      | ( ( SV454
          = ( set_union2 @ SV317 @ SV427 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2200]) ).

thf(2231,plain,
    ! [SV427: $i,SV454: $i,SV317: $i] :
      ( ( ( ! [SY675: $i] :
              ( ~ ( in @ SY675 @ SV317 )
              | ( in @ SY675 @ SV454 ) ) )
        = $true )
      | ( ( SV454
          = ( set_union2 @ SV317 @ SV427 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[2201]) ).

thf(2232,plain,
    ! [SV317: $i,SV454: $i,SV427: $i] :
      ( ( ( ! [SY676: $i] :
              ( ~ ( in @ SY676 @ SV427 )
              | ( in @ SY676 @ SV454 ) ) )
        = $true )
      | ( ( SV454
          = ( set_union2 @ SV317 @ SV427 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[2202]) ).

thf(2233,plain,
    ! [SV319: $i,SV430: $i,SV456: $i] :
      ( ( ( ~ ( in @ ( sK20_D @ SV456 @ SV430 @ SV319 ) @ SV456 ) )
        = $true )
      | ( ( ( ( sK20_D @ SV456 @ SV430 @ SV319 )
           != SV319 ) )
        = $true )
      | ( ( SV456
          = ( unordered_pair @ SV319 @ SV430 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2203]) ).

thf(2234,plain,
    ! [SV319: $i,SV430: $i,SV456: $i] :
      ( ( ( ~ ( in @ ( sK20_D @ SV456 @ SV430 @ SV319 ) @ SV456 ) )
        = $true )
      | ( ( ( ( sK20_D @ SV456 @ SV430 @ SV319 )
           != SV430 ) )
        = $true )
      | ( ( SV456
          = ( unordered_pair @ SV319 @ SV430 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2204]) ).

thf(2235,plain,
    ! [SV431: $i,SV319: $i,SV457: $i,SV502: $i] :
      ( ( ( in @ SV502 @ SV457 )
        = $false )
      | ( ( ( SV502 = SV319 )
          | ( SV502 = SV431 ) )
        = $true )
      | ( ( SV457
          = ( unordered_pair @ SV319 @ SV431 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2205]) ).

thf(2236,plain,
    ! [SV431: $i,SV457: $i,SV319: $i] :
      ( ( ( ! [SY678: $i] :
              ( ( SY678 != SV319 )
              | ( in @ SY678 @ SV457 ) ) )
        = $true )
      | ( ( SV457
          = ( unordered_pair @ SV319 @ SV431 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[2206]) ).

thf(2237,plain,
    ! [SV319: $i,SV457: $i,SV431: $i] :
      ( ( ( ! [SY679: $i] :
              ( ( SY679 != SV431 )
              | ( in @ SY679 @ SV457 ) ) )
        = $true )
      | ( ( SV457
          = ( unordered_pair @ SV319 @ SV431 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[2207]) ).

thf(2238,plain,
    ! [SV320: $i,SV432: $i,SV458: $i] :
      ( ( ( in @ ( sK8_D @ SV458 @ SV432 @ SV320 ) @ SV458 )
        = $false )
      | ( ( in @ ( sK8_D @ SV458 @ SV432 @ SV320 ) @ SV432 )
        = $true )
      | ( ( in @ ( sK8_D @ SV458 @ SV432 @ SV320 ) @ SV320 )
        = $false )
      | ( ( SV458
          = ( set_difference @ SV320 @ SV432 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2208]) ).

thf(2239,plain,
    ! [SV320: $i,SV432: $i,SV458: $i] :
      ( ( ( in @ ( sK8_D @ SV458 @ SV432 @ SV320 ) @ SV320 )
        = $true )
      | ( ( in @ ( sK8_D @ SV458 @ SV432 @ SV320 ) @ SV458 )
        = $true )
      | ( ( SV458
          = ( set_difference @ SV320 @ SV432 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2209]) ).

thf(2240,plain,
    ! [SV320: $i,SV432: $i,SV458: $i] :
      ( ( ( ~ ( in @ ( sK8_D @ SV458 @ SV432 @ SV320 ) @ SV432 ) )
        = $true )
      | ( ( in @ ( sK8_D @ SV458 @ SV432 @ SV320 ) @ SV458 )
        = $true )
      | ( ( SV458
          = ( set_difference @ SV320 @ SV432 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2210]) ).

thf(2241,plain,
    ! [SV459: $i,SV433: $i,SV320: $i,SV503: $i] :
      ( ( ( ~ ( in @ SV503 @ SV320 ) )
        = $true )
      | ( ( in @ SV503 @ SV433 )
        = $true )
      | ( ( in @ SV503 @ SV459 )
        = $true )
      | ( ( SV459
          = ( set_difference @ SV320 @ SV433 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[2211]) ).

thf(2242,plain,
    ! [SV433: $i,SV320: $i,SV459: $i] :
      ( ( ( ! [SY681: $i] :
              ( ~ ( in @ SY681 @ SV459 )
              | ( in @ SY681 @ SV320 ) ) )
        = $true )
      | ( ( SV459
          = ( set_difference @ SV320 @ SV433 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[2212]) ).

thf(2243,plain,
    ! [SV320: $i,SV433: $i,SV459: $i] :
      ( ( ( ! [SY682: $i] :
              ( ~ ( in @ SY682 @ SV459 )
              | ~ ( in @ SY682 @ SV433 ) ) )
        = $true )
      | ( ( SV459
          = ( set_difference @ SV320 @ SV433 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[2213]) ).

thf(2244,plain,
    ! [SV460: $i,SV446: $i,SV508: $i,SV321: $i,SV504: $i] :
      ( ( ( ~ ( in @ SV504 @ SV321 )
          | ~ ( in @ SV508 @ SV446 ) )
        = $true )
      | ( ( ( ( sK16_D @ SV460 @ SV446 @ SV321 )
           != ( ordered_pair @ SV504 @ SV508 ) ) )
        = $true )
      | ( ( ~ ( in @ ( sK16_D @ SV460 @ SV446 @ SV321 ) @ SV460 ) )
        = $true )
      | ( ( SV460
          = ( cartesian_product2 @ SV321 @ SV446 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2214]) ).

thf(2245,plain,
    ! [SV321: $i,SV446: $i,SV460: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK17_SY205 @ SV460 @ SV446 @ SV321 ) @ SV321 )
              | ~ ( in @ ( sK18_SY207 @ SV460 @ SV446 @ SV321 ) @ SV446 ) ) )
        = $true )
      | ( ( in @ ( sK16_D @ SV460 @ SV446 @ SV321 ) @ SV460 )
        = $true )
      | ( ( SV460
          = ( cartesian_product2 @ SV321 @ SV446 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[2215]) ).

thf(2246,plain,
    ! [SV321: $i,SV446: $i,SV460: $i] :
      ( ( ( ( sK16_D @ SV460 @ SV446 @ SV321 )
          = ( ordered_pair @ ( sK17_SY205 @ SV460 @ SV446 @ SV321 ) @ ( sK18_SY207 @ SV460 @ SV446 @ SV321 ) ) )
        = $true )
      | ( ( in @ ( sK16_D @ SV460 @ SV446 @ SV321 ) @ SV460 )
        = $true )
      | ( ( SV460
          = ( cartesian_product2 @ SV321 @ SV446 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[2216]) ).

thf(2247,plain,
    ! [SV461: $i,SV505: $i,SV447: $i,SV321: $i,SV509: $i] :
      ( ( ( ! [SY705: $i] :
              ( ~ ( in @ SV509 @ SV321 )
              | ~ ( in @ SY705 @ SV447 )
              | ( SV505
               != ( ordered_pair @ SV509 @ SY705 ) ) ) )
        = $true )
      | ( ( in @ SV505 @ SV461 )
        = $true )
      | ( ( SV461
          = ( cartesian_product2 @ SV321 @ SV447 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[2217]) ).

thf(2248,plain,
    ! [SV321: $i,SV447: $i,SV461: $i,SV506: $i] :
      ( ( ( in @ SV506 @ SV461 )
        = $false )
      | ( ( ~ ( ~ ~ ( ~ ( in @ ( sK14_E @ SV506 @ SV461 @ SV447 @ SV321 ) @ SV321 )
                    | ~ ( in @ ( sK15_SY202 @ SV506 @ SV461 @ SV447 @ SV321 ) @ SV447 ) )
              | ( SV506
               != ( ordered_pair @ ( sK14_E @ SV506 @ SV461 @ SV447 @ SV321 ) @ ( sK15_SY202 @ SV506 @ SV461 @ SV447 @ SV321 ) ) ) ) )
        = $true )
      | ( ( SV461
          = ( cartesian_product2 @ SV321 @ SV447 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2218]) ).

thf(2249,plain,
    ! [SV492: $i,SV372: $i,SV407: $i] :
      ( ( ( in @ ( sK10_C @ SV407 @ SV372 ) @ SV407 )
        = $false )
      | ( ( in @ ( sK10_C @ SV407 @ SV372 ) @ SV492 )
        = $false )
      | ( ( in @ SV492 @ SV372 )
        = $false )
      | ( ( SV407
          = ( union @ SV372 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2219]) ).

thf(2250,plain,
    ! [SV408: $i,SV373: $i,SV507: $i,SV493: $i] :
      ( ( ( in @ SV493 @ SV507 )
        = $false )
      | ( ( ~ ( in @ SV507 @ SV373 ) )
        = $true )
      | ( ( in @ SV493 @ SV408 )
        = $true )
      | ( ( SV408
          = ( union @ SV373 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2220]) ).

thf(2251,plain,
    ! [SV373: $i,SV408: $i,SV494: $i] :
      ( ( ( ~ ( in @ SV494 @ ( sK9_D @ SV494 @ SV408 @ SV373 ) ) )
        = $false )
      | ( ( in @ SV494 @ SV408 )
        = $false )
      | ( ( SV408
          = ( union @ SV373 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[2221]) ).

thf(2252,plain,
    ! [SV373: $i,SV408: $i,SV494: $i] :
      ( ( ( ~ ( in @ ( sK9_D @ SV494 @ SV408 @ SV373 ) @ SV373 ) )
        = $false )
      | ( ( in @ SV494 @ SV408 )
        = $false )
      | ( ( SV408
          = ( union @ SV373 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[2221]) ).

thf(2253,plain,
    ! [SV314: $i,SV420: $i,SV449: $i] :
      ( ( ( in @ ( sK12_D @ SV449 @ SV420 @ SV314 ) @ SV449 )
        = $false )
      | ( ( in @ ( sK12_D @ SV449 @ SV420 @ SV314 ) @ SV314 )
        = $false )
      | ( ( in @ ( sK12_D @ SV449 @ SV420 @ SV314 ) @ SV420 )
        = $false )
      | ( ( SV449
          = ( set_intersection2 @ SV314 @ SV420 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2222]) ).

thf(2254,plain,
    ! [SV450: $i,SV421: $i,SV314: $i,SV500: $i] :
      ( ( ( in @ SV500 @ SV314 )
        = $false )
      | ( ( ~ ( in @ SV500 @ SV421 ) )
        = $true )
      | ( ( in @ SV500 @ SV450 )
        = $true )
      | ( ( SV450
          = ( set_intersection2 @ SV314 @ SV421 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2225]) ).

thf(2255,plain,
    ! [SV421: $i,SV314: $i,SV450: $i,SV510: $i] :
      ( ( ( ~ ( in @ SV510 @ SV450 )
          | ( in @ SV510 @ SV314 ) )
        = $true )
      | ( ( SV450
          = ( set_intersection2 @ SV314 @ SV421 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[2226]) ).

thf(2256,plain,
    ! [SV314: $i,SV421: $i,SV450: $i,SV511: $i] :
      ( ( ( ~ ( in @ SV511 @ SV450 )
          | ( in @ SV511 @ SV421 ) )
        = $true )
      | ( ( SV450
          = ( set_intersection2 @ SV314 @ SV421 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[2227]) ).

thf(2257,plain,
    ! [SV317: $i,SV426: $i,SV453: $i] :
      ( ( ( in @ ( sK19_D @ SV453 @ SV426 @ SV317 ) @ SV453 )
        = $false )
      | ( ( ~ ( in @ ( sK19_D @ SV453 @ SV426 @ SV317 ) @ SV317 ) )
        = $true )
      | ( ( SV453
          = ( set_union2 @ SV317 @ SV426 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2228]) ).

thf(2258,plain,
    ! [SV317: $i,SV426: $i,SV453: $i] :
      ( ( ( in @ ( sK19_D @ SV453 @ SV426 @ SV317 ) @ SV453 )
        = $false )
      | ( ( ~ ( in @ ( sK19_D @ SV453 @ SV426 @ SV317 ) @ SV426 ) )
        = $true )
      | ( ( SV453
          = ( set_union2 @ SV317 @ SV426 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2229]) ).

thf(2259,plain,
    ! [SV454: $i,SV427: $i,SV317: $i,SV501: $i] :
      ( ( ( in @ SV501 @ SV317 )
        = $true )
      | ( ( in @ SV501 @ SV427 )
        = $true )
      | ( ( in @ SV501 @ SV454 )
        = $false )
      | ( ( SV454
          = ( set_union2 @ SV317 @ SV427 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[2230]) ).

thf(2260,plain,
    ! [SV427: $i,SV454: $i,SV317: $i,SV512: $i] :
      ( ( ( ~ ( in @ SV512 @ SV317 )
          | ( in @ SV512 @ SV454 ) )
        = $true )
      | ( ( SV454
          = ( set_union2 @ SV317 @ SV427 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[2231]) ).

thf(2261,plain,
    ! [SV317: $i,SV454: $i,SV427: $i,SV513: $i] :
      ( ( ( ~ ( in @ SV513 @ SV427 )
          | ( in @ SV513 @ SV454 ) )
        = $true )
      | ( ( SV454
          = ( set_union2 @ SV317 @ SV427 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[2232]) ).

thf(2262,plain,
    ! [SV319: $i,SV430: $i,SV456: $i] :
      ( ( ( in @ ( sK20_D @ SV456 @ SV430 @ SV319 ) @ SV456 )
        = $false )
      | ( ( ( ( sK20_D @ SV456 @ SV430 @ SV319 )
           != SV319 ) )
        = $true )
      | ( ( SV456
          = ( unordered_pair @ SV319 @ SV430 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2233]) ).

thf(2263,plain,
    ! [SV319: $i,SV430: $i,SV456: $i] :
      ( ( ( in @ ( sK20_D @ SV456 @ SV430 @ SV319 ) @ SV456 )
        = $false )
      | ( ( ( ( sK20_D @ SV456 @ SV430 @ SV319 )
           != SV430 ) )
        = $true )
      | ( ( SV456
          = ( unordered_pair @ SV319 @ SV430 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2234]) ).

thf(2264,plain,
    ! [SV457: $i,SV431: $i,SV319: $i,SV502: $i] :
      ( ( ( SV502 = SV319 )
        = $true )
      | ( ( SV502 = SV431 )
        = $true )
      | ( ( in @ SV502 @ SV457 )
        = $false )
      | ( ( SV457
          = ( unordered_pair @ SV319 @ SV431 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[2235]) ).

thf(2265,plain,
    ! [SV431: $i,SV457: $i,SV319: $i,SV514: $i] :
      ( ( ( ( SV514 != SV319 )
          | ( in @ SV514 @ SV457 ) )
        = $true )
      | ( ( SV457
          = ( unordered_pair @ SV319 @ SV431 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[2236]) ).

thf(2266,plain,
    ! [SV319: $i,SV457: $i,SV431: $i,SV515: $i] :
      ( ( ( ( SV515 != SV431 )
          | ( in @ SV515 @ SV457 ) )
        = $true )
      | ( ( SV457
          = ( unordered_pair @ SV319 @ SV431 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[2237]) ).

thf(2267,plain,
    ! [SV320: $i,SV432: $i,SV458: $i] :
      ( ( ( in @ ( sK8_D @ SV458 @ SV432 @ SV320 ) @ SV432 )
        = $false )
      | ( ( in @ ( sK8_D @ SV458 @ SV432 @ SV320 ) @ SV458 )
        = $true )
      | ( ( SV458
          = ( set_difference @ SV320 @ SV432 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2240]) ).

thf(2268,plain,
    ! [SV459: $i,SV433: $i,SV320: $i,SV503: $i] :
      ( ( ( in @ SV503 @ SV320 )
        = $false )
      | ( ( in @ SV503 @ SV433 )
        = $true )
      | ( ( in @ SV503 @ SV459 )
        = $true )
      | ( ( SV459
          = ( set_difference @ SV320 @ SV433 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2241]) ).

thf(2269,plain,
    ! [SV433: $i,SV320: $i,SV459: $i,SV516: $i] :
      ( ( ( ~ ( in @ SV516 @ SV459 )
          | ( in @ SV516 @ SV320 ) )
        = $true )
      | ( ( SV459
          = ( set_difference @ SV320 @ SV433 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[2242]) ).

thf(2270,plain,
    ! [SV320: $i,SV433: $i,SV459: $i,SV517: $i] :
      ( ( ( ~ ( in @ SV517 @ SV459 )
          | ~ ( in @ SV517 @ SV433 ) )
        = $true )
      | ( ( SV459
          = ( set_difference @ SV320 @ SV433 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[2243]) ).

thf(2271,plain,
    ! [SV460: $i,SV446: $i,SV508: $i,SV321: $i,SV504: $i] :
      ( ( ( ~ ( in @ SV504 @ SV321 ) )
        = $true )
      | ( ( ~ ( in @ SV508 @ SV446 ) )
        = $true )
      | ( ( ( ( sK16_D @ SV460 @ SV446 @ SV321 )
           != ( ordered_pair @ SV504 @ SV508 ) ) )
        = $true )
      | ( ( ~ ( in @ ( sK16_D @ SV460 @ SV446 @ SV321 ) @ SV460 ) )
        = $true )
      | ( ( SV460
          = ( cartesian_product2 @ SV321 @ SV446 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[2244]) ).

thf(2272,plain,
    ! [SV321: $i,SV446: $i,SV460: $i] :
      ( ( ( ~ ( in @ ( sK17_SY205 @ SV460 @ SV446 @ SV321 ) @ SV321 )
          | ~ ( in @ ( sK18_SY207 @ SV460 @ SV446 @ SV321 ) @ SV446 ) )
        = $false )
      | ( ( in @ ( sK16_D @ SV460 @ SV446 @ SV321 ) @ SV460 )
        = $true )
      | ( ( SV460
          = ( cartesian_product2 @ SV321 @ SV446 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2245]) ).

thf(2273,plain,
    ! [SV461: $i,SV505: $i,SV447: $i,SV518: $i,SV321: $i,SV509: $i] :
      ( ( ( ~ ( in @ SV509 @ SV321 )
          | ~ ( in @ SV518 @ SV447 )
          | ( SV505
           != ( ordered_pair @ SV509 @ SV518 ) ) )
        = $true )
      | ( ( in @ SV505 @ SV461 )
        = $true )
      | ( ( SV461
          = ( cartesian_product2 @ SV321 @ SV447 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[2247]) ).

thf(2274,plain,
    ! [SV321: $i,SV447: $i,SV461: $i,SV506: $i] :
      ( ( ( ~ ~ ( ~ ( in @ ( sK14_E @ SV506 @ SV461 @ SV447 @ SV321 ) @ SV321 )
                | ~ ( in @ ( sK15_SY202 @ SV506 @ SV461 @ SV447 @ SV321 ) @ SV447 ) )
          | ( SV506
           != ( ordered_pair @ ( sK14_E @ SV506 @ SV461 @ SV447 @ SV321 ) @ ( sK15_SY202 @ SV506 @ SV461 @ SV447 @ SV321 ) ) ) )
        = $false )
      | ( ( in @ SV506 @ SV461 )
        = $false )
      | ( ( SV461
          = ( cartesian_product2 @ SV321 @ SV447 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2248]) ).

thf(2275,plain,
    ! [SV408: $i,SV493: $i,SV373: $i,SV507: $i] :
      ( ( ( in @ SV507 @ SV373 )
        = $false )
      | ( ( in @ SV493 @ SV507 )
        = $false )
      | ( ( in @ SV493 @ SV408 )
        = $true )
      | ( ( SV408
          = ( union @ SV373 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2250]) ).

thf(2276,plain,
    ! [SV373: $i,SV408: $i,SV494: $i] :
      ( ( ( in @ SV494 @ ( sK9_D @ SV494 @ SV408 @ SV373 ) )
        = $true )
      | ( ( in @ SV494 @ SV408 )
        = $false )
      | ( ( SV408
          = ( union @ SV373 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[2251]) ).

thf(2277,plain,
    ! [SV373: $i,SV408: $i,SV494: $i] :
      ( ( ( in @ ( sK9_D @ SV494 @ SV408 @ SV373 ) @ SV373 )
        = $true )
      | ( ( in @ SV494 @ SV408 )
        = $false )
      | ( ( SV408
          = ( union @ SV373 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[2252]) ).

thf(2278,plain,
    ! [SV450: $i,SV314: $i,SV421: $i,SV500: $i] :
      ( ( ( in @ SV500 @ SV421 )
        = $false )
      | ( ( in @ SV500 @ SV314 )
        = $false )
      | ( ( in @ SV500 @ SV450 )
        = $true )
      | ( ( SV450
          = ( set_intersection2 @ SV314 @ SV421 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2254]) ).

thf(2279,plain,
    ! [SV421: $i,SV314: $i,SV450: $i,SV510: $i] :
      ( ( ( ~ ( in @ SV510 @ SV450 ) )
        = $true )
      | ( ( in @ SV510 @ SV314 )
        = $true )
      | ( ( SV450
          = ( set_intersection2 @ SV314 @ SV421 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[2255]) ).

thf(2280,plain,
    ! [SV314: $i,SV421: $i,SV450: $i,SV511: $i] :
      ( ( ( ~ ( in @ SV511 @ SV450 ) )
        = $true )
      | ( ( in @ SV511 @ SV421 )
        = $true )
      | ( ( SV450
          = ( set_intersection2 @ SV314 @ SV421 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[2256]) ).

thf(2281,plain,
    ! [SV317: $i,SV426: $i,SV453: $i] :
      ( ( ( in @ ( sK19_D @ SV453 @ SV426 @ SV317 ) @ SV317 )
        = $false )
      | ( ( in @ ( sK19_D @ SV453 @ SV426 @ SV317 ) @ SV453 )
        = $false )
      | ( ( SV453
          = ( set_union2 @ SV317 @ SV426 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2257]) ).

thf(2282,plain,
    ! [SV317: $i,SV426: $i,SV453: $i] :
      ( ( ( in @ ( sK19_D @ SV453 @ SV426 @ SV317 ) @ SV426 )
        = $false )
      | ( ( in @ ( sK19_D @ SV453 @ SV426 @ SV317 ) @ SV453 )
        = $false )
      | ( ( SV453
          = ( set_union2 @ SV317 @ SV426 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2258]) ).

thf(2283,plain,
    ! [SV427: $i,SV454: $i,SV317: $i,SV512: $i] :
      ( ( ( ~ ( in @ SV512 @ SV317 ) )
        = $true )
      | ( ( in @ SV512 @ SV454 )
        = $true )
      | ( ( SV454
          = ( set_union2 @ SV317 @ SV427 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[2260]) ).

thf(2284,plain,
    ! [SV317: $i,SV454: $i,SV427: $i,SV513: $i] :
      ( ( ( ~ ( in @ SV513 @ SV427 ) )
        = $true )
      | ( ( in @ SV513 @ SV454 )
        = $true )
      | ( ( SV454
          = ( set_union2 @ SV317 @ SV427 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[2261]) ).

thf(2285,plain,
    ! [SV319: $i,SV430: $i,SV456: $i] :
      ( ( ( ( sK20_D @ SV456 @ SV430 @ SV319 )
          = SV319 )
        = $false )
      | ( ( in @ ( sK20_D @ SV456 @ SV430 @ SV319 ) @ SV456 )
        = $false )
      | ( ( SV456
          = ( unordered_pair @ SV319 @ SV430 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2262]) ).

thf(2286,plain,
    ! [SV319: $i,SV430: $i,SV456: $i] :
      ( ( ( ( sK20_D @ SV456 @ SV430 @ SV319 )
          = SV430 )
        = $false )
      | ( ( in @ ( sK20_D @ SV456 @ SV430 @ SV319 ) @ SV456 )
        = $false )
      | ( ( SV456
          = ( unordered_pair @ SV319 @ SV430 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2263]) ).

thf(2287,plain,
    ! [SV431: $i,SV457: $i,SV319: $i,SV514: $i] :
      ( ( ( ( SV514 != SV319 ) )
        = $true )
      | ( ( in @ SV514 @ SV457 )
        = $true )
      | ( ( SV457
          = ( unordered_pair @ SV319 @ SV431 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[2265]) ).

thf(2288,plain,
    ! [SV319: $i,SV457: $i,SV431: $i,SV515: $i] :
      ( ( ( ( SV515 != SV431 ) )
        = $true )
      | ( ( in @ SV515 @ SV457 )
        = $true )
      | ( ( SV457
          = ( unordered_pair @ SV319 @ SV431 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[2266]) ).

thf(2289,plain,
    ! [SV433: $i,SV320: $i,SV459: $i,SV516: $i] :
      ( ( ( ~ ( in @ SV516 @ SV459 ) )
        = $true )
      | ( ( in @ SV516 @ SV320 )
        = $true )
      | ( ( SV459
          = ( set_difference @ SV320 @ SV433 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[2269]) ).

thf(2290,plain,
    ! [SV320: $i,SV433: $i,SV459: $i,SV517: $i] :
      ( ( ( ~ ( in @ SV517 @ SV459 ) )
        = $true )
      | ( ( ~ ( in @ SV517 @ SV433 ) )
        = $true )
      | ( ( SV459
          = ( set_difference @ SV320 @ SV433 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[2270]) ).

thf(2291,plain,
    ! [SV460: $i,SV446: $i,SV508: $i,SV321: $i,SV504: $i] :
      ( ( ( in @ SV504 @ SV321 )
        = $false )
      | ( ( ~ ( in @ SV508 @ SV446 ) )
        = $true )
      | ( ( ( ( sK16_D @ SV460 @ SV446 @ SV321 )
           != ( ordered_pair @ SV504 @ SV508 ) ) )
        = $true )
      | ( ( ~ ( in @ ( sK16_D @ SV460 @ SV446 @ SV321 ) @ SV460 ) )
        = $true )
      | ( ( SV460
          = ( cartesian_product2 @ SV321 @ SV446 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2271]) ).

thf(2292,plain,
    ! [SV321: $i,SV446: $i,SV460: $i] :
      ( ( ( ~ ( in @ ( sK17_SY205 @ SV460 @ SV446 @ SV321 ) @ SV321 ) )
        = $false )
      | ( ( in @ ( sK16_D @ SV460 @ SV446 @ SV321 ) @ SV460 )
        = $true )
      | ( ( SV460
          = ( cartesian_product2 @ SV321 @ SV446 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[2272]) ).

thf(2293,plain,
    ! [SV321: $i,SV446: $i,SV460: $i] :
      ( ( ( ~ ( in @ ( sK18_SY207 @ SV460 @ SV446 @ SV321 ) @ SV446 ) )
        = $false )
      | ( ( in @ ( sK16_D @ SV460 @ SV446 @ SV321 ) @ SV460 )
        = $true )
      | ( ( SV460
          = ( cartesian_product2 @ SV321 @ SV446 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[2272]) ).

thf(2294,plain,
    ! [SV461: $i,SV505: $i,SV447: $i,SV518: $i,SV321: $i,SV509: $i] :
      ( ( ( ~ ( in @ SV509 @ SV321 )
          | ~ ( in @ SV518 @ SV447 ) )
        = $true )
      | ( ( ( SV505
           != ( ordered_pair @ SV509 @ SV518 ) ) )
        = $true )
      | ( ( in @ SV505 @ SV461 )
        = $true )
      | ( ( SV461
          = ( cartesian_product2 @ SV321 @ SV447 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[2273]) ).

thf(2295,plain,
    ! [SV321: $i,SV447: $i,SV461: $i,SV506: $i] :
      ( ( ( ~ ~ ( ~ ( in @ ( sK14_E @ SV506 @ SV461 @ SV447 @ SV321 ) @ SV321 )
                | ~ ( in @ ( sK15_SY202 @ SV506 @ SV461 @ SV447 @ SV321 ) @ SV447 ) ) )
        = $false )
      | ( ( in @ SV506 @ SV461 )
        = $false )
      | ( ( SV461
          = ( cartesian_product2 @ SV321 @ SV447 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[2274]) ).

thf(2296,plain,
    ! [SV321: $i,SV447: $i,SV461: $i,SV506: $i] :
      ( ( ( ( SV506
           != ( ordered_pair @ ( sK14_E @ SV506 @ SV461 @ SV447 @ SV321 ) @ ( sK15_SY202 @ SV506 @ SV461 @ SV447 @ SV321 ) ) ) )
        = $false )
      | ( ( in @ SV506 @ SV461 )
        = $false )
      | ( ( SV461
          = ( cartesian_product2 @ SV321 @ SV447 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[2274]) ).

thf(2297,plain,
    ! [SV421: $i,SV314: $i,SV450: $i,SV510: $i] :
      ( ( ( in @ SV510 @ SV450 )
        = $false )
      | ( ( in @ SV510 @ SV314 )
        = $true )
      | ( ( SV450
          = ( set_intersection2 @ SV314 @ SV421 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2279]) ).

thf(2298,plain,
    ! [SV314: $i,SV421: $i,SV450: $i,SV511: $i] :
      ( ( ( in @ SV511 @ SV450 )
        = $false )
      | ( ( in @ SV511 @ SV421 )
        = $true )
      | ( ( SV450
          = ( set_intersection2 @ SV314 @ SV421 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2280]) ).

thf(2299,plain,
    ! [SV427: $i,SV454: $i,SV317: $i,SV512: $i] :
      ( ( ( in @ SV512 @ SV317 )
        = $false )
      | ( ( in @ SV512 @ SV454 )
        = $true )
      | ( ( SV454
          = ( set_union2 @ SV317 @ SV427 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2283]) ).

thf(2300,plain,
    ! [SV317: $i,SV454: $i,SV427: $i,SV513: $i] :
      ( ( ( in @ SV513 @ SV427 )
        = $false )
      | ( ( in @ SV513 @ SV454 )
        = $true )
      | ( ( SV454
          = ( set_union2 @ SV317 @ SV427 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2284]) ).

thf(2301,plain,
    ! [SV431: $i,SV457: $i,SV319: $i,SV514: $i] :
      ( ( ( SV514 = SV319 )
        = $false )
      | ( ( in @ SV514 @ SV457 )
        = $true )
      | ( ( SV457
          = ( unordered_pair @ SV319 @ SV431 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2287]) ).

thf(2302,plain,
    ! [SV319: $i,SV457: $i,SV431: $i,SV515: $i] :
      ( ( ( SV515 = SV431 )
        = $false )
      | ( ( in @ SV515 @ SV457 )
        = $true )
      | ( ( SV457
          = ( unordered_pair @ SV319 @ SV431 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2288]) ).

thf(2303,plain,
    ! [SV433: $i,SV320: $i,SV459: $i,SV516: $i] :
      ( ( ( in @ SV516 @ SV459 )
        = $false )
      | ( ( in @ SV516 @ SV320 )
        = $true )
      | ( ( SV459
          = ( set_difference @ SV320 @ SV433 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2289]) ).

thf(2304,plain,
    ! [SV320: $i,SV433: $i,SV459: $i,SV517: $i] :
      ( ( ( in @ SV517 @ SV459 )
        = $false )
      | ( ( ~ ( in @ SV517 @ SV433 ) )
        = $true )
      | ( ( SV459
          = ( set_difference @ SV320 @ SV433 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2290]) ).

thf(2305,plain,
    ! [SV460: $i,SV321: $i,SV504: $i,SV446: $i,SV508: $i] :
      ( ( ( in @ SV508 @ SV446 )
        = $false )
      | ( ( in @ SV504 @ SV321 )
        = $false )
      | ( ( ( ( sK16_D @ SV460 @ SV446 @ SV321 )
           != ( ordered_pair @ SV504 @ SV508 ) ) )
        = $true )
      | ( ( ~ ( in @ ( sK16_D @ SV460 @ SV446 @ SV321 ) @ SV460 ) )
        = $true )
      | ( ( SV460
          = ( cartesian_product2 @ SV321 @ SV446 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2291]) ).

thf(2306,plain,
    ! [SV321: $i,SV446: $i,SV460: $i] :
      ( ( ( in @ ( sK17_SY205 @ SV460 @ SV446 @ SV321 ) @ SV321 )
        = $true )
      | ( ( in @ ( sK16_D @ SV460 @ SV446 @ SV321 ) @ SV460 )
        = $true )
      | ( ( SV460
          = ( cartesian_product2 @ SV321 @ SV446 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[2292]) ).

thf(2307,plain,
    ! [SV321: $i,SV446: $i,SV460: $i] :
      ( ( ( in @ ( sK18_SY207 @ SV460 @ SV446 @ SV321 ) @ SV446 )
        = $true )
      | ( ( in @ ( sK16_D @ SV460 @ SV446 @ SV321 ) @ SV460 )
        = $true )
      | ( ( SV460
          = ( cartesian_product2 @ SV321 @ SV446 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[2293]) ).

thf(2308,plain,
    ! [SV461: $i,SV505: $i,SV447: $i,SV518: $i,SV321: $i,SV509: $i] :
      ( ( ( ~ ( in @ SV509 @ SV321 ) )
        = $true )
      | ( ( ~ ( in @ SV518 @ SV447 ) )
        = $true )
      | ( ( ( SV505
           != ( ordered_pair @ SV509 @ SV518 ) ) )
        = $true )
      | ( ( in @ SV505 @ SV461 )
        = $true )
      | ( ( SV461
          = ( cartesian_product2 @ SV321 @ SV447 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[2294]) ).

thf(2309,plain,
    ! [SV321: $i,SV447: $i,SV461: $i,SV506: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK14_E @ SV506 @ SV461 @ SV447 @ SV321 ) @ SV321 )
              | ~ ( in @ ( sK15_SY202 @ SV506 @ SV461 @ SV447 @ SV321 ) @ SV447 ) ) )
        = $true )
      | ( ( in @ SV506 @ SV461 )
        = $false )
      | ( ( SV461
          = ( cartesian_product2 @ SV321 @ SV447 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[2295]) ).

thf(2310,plain,
    ! [SV321: $i,SV447: $i,SV461: $i,SV506: $i] :
      ( ( ( SV506
          = ( ordered_pair @ ( sK14_E @ SV506 @ SV461 @ SV447 @ SV321 ) @ ( sK15_SY202 @ SV506 @ SV461 @ SV447 @ SV321 ) ) )
        = $true )
      | ( ( in @ SV506 @ SV461 )
        = $false )
      | ( ( SV461
          = ( cartesian_product2 @ SV321 @ SV447 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[2296]) ).

thf(2311,plain,
    ! [SV320: $i,SV459: $i,SV433: $i,SV517: $i] :
      ( ( ( in @ SV517 @ SV433 )
        = $false )
      | ( ( in @ SV517 @ SV459 )
        = $false )
      | ( ( SV459
          = ( set_difference @ SV320 @ SV433 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2304]) ).

thf(2312,plain,
    ! [SV508: $i,SV504: $i,SV321: $i,SV446: $i,SV460: $i] :
      ( ( ( ( sK16_D @ SV460 @ SV446 @ SV321 )
          = ( ordered_pair @ SV504 @ SV508 ) )
        = $false )
      | ( ( in @ SV504 @ SV321 )
        = $false )
      | ( ( in @ SV508 @ SV446 )
        = $false )
      | ( ( ~ ( in @ ( sK16_D @ SV460 @ SV446 @ SV321 ) @ SV460 ) )
        = $true )
      | ( ( SV460
          = ( cartesian_product2 @ SV321 @ SV446 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2305]) ).

thf(2313,plain,
    ! [SV461: $i,SV505: $i,SV447: $i,SV518: $i,SV321: $i,SV509: $i] :
      ( ( ( in @ SV509 @ SV321 )
        = $false )
      | ( ( ~ ( in @ SV518 @ SV447 ) )
        = $true )
      | ( ( ( SV505
           != ( ordered_pair @ SV509 @ SV518 ) ) )
        = $true )
      | ( ( in @ SV505 @ SV461 )
        = $true )
      | ( ( SV461
          = ( cartesian_product2 @ SV321 @ SV447 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2308]) ).

thf(2314,plain,
    ! [SV321: $i,SV447: $i,SV461: $i,SV506: $i] :
      ( ( ( ~ ( in @ ( sK14_E @ SV506 @ SV461 @ SV447 @ SV321 ) @ SV321 )
          | ~ ( in @ ( sK15_SY202 @ SV506 @ SV461 @ SV447 @ SV321 ) @ SV447 ) )
        = $false )
      | ( ( in @ SV506 @ SV461 )
        = $false )
      | ( ( SV461
          = ( cartesian_product2 @ SV321 @ SV447 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2309]) ).

thf(2315,plain,
    ! [SV504: $i,SV508: $i,SV321: $i,SV446: $i,SV460: $i] :
      ( ( ( in @ ( sK16_D @ SV460 @ SV446 @ SV321 ) @ SV460 )
        = $false )
      | ( ( in @ SV508 @ SV446 )
        = $false )
      | ( ( in @ SV504 @ SV321 )
        = $false )
      | ( ( ( sK16_D @ SV460 @ SV446 @ SV321 )
          = ( ordered_pair @ SV504 @ SV508 ) )
        = $false )
      | ( ( SV460
          = ( cartesian_product2 @ SV321 @ SV446 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[2312]) ).

thf(2316,plain,
    ! [SV461: $i,SV505: $i,SV321: $i,SV509: $i,SV447: $i,SV518: $i] :
      ( ( ( in @ SV518 @ SV447 )
        = $false )
      | ( ( in @ SV509 @ SV321 )
        = $false )
      | ( ( ( SV505
           != ( ordered_pair @ SV509 @ SV518 ) ) )
        = $true )
      | ( ( in @ SV505 @ SV461 )
        = $true )
      | ( ( SV461
          = ( cartesian_product2 @ SV321 @ SV447 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2313]) ).

thf(2317,plain,
    ! [SV321: $i,SV447: $i,SV461: $i,SV506: $i] :
      ( ( ( ~ ( in @ ( sK14_E @ SV506 @ SV461 @ SV447 @ SV321 ) @ SV321 ) )
        = $false )
      | ( ( in @ SV506 @ SV461 )
        = $false )
      | ( ( SV461
          = ( cartesian_product2 @ SV321 @ SV447 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[2314]) ).

thf(2318,plain,
    ! [SV321: $i,SV447: $i,SV461: $i,SV506: $i] :
      ( ( ( ~ ( in @ ( sK15_SY202 @ SV506 @ SV461 @ SV447 @ SV321 ) @ SV447 ) )
        = $false )
      | ( ( in @ SV506 @ SV461 )
        = $false )
      | ( ( SV461
          = ( cartesian_product2 @ SV321 @ SV447 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[2314]) ).

thf(2319,plain,
    ! [SV461: $i,SV447: $i,SV321: $i,SV518: $i,SV509: $i,SV505: $i] :
      ( ( ( SV505
          = ( ordered_pair @ SV509 @ SV518 ) )
        = $false )
      | ( ( in @ SV509 @ SV321 )
        = $false )
      | ( ( in @ SV518 @ SV447 )
        = $false )
      | ( ( in @ SV505 @ SV461 )
        = $true )
      | ( ( SV461
          = ( cartesian_product2 @ SV321 @ SV447 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[2316]) ).

thf(2320,plain,
    ! [SV321: $i,SV447: $i,SV461: $i,SV506: $i] :
      ( ( ( in @ ( sK14_E @ SV506 @ SV461 @ SV447 @ SV321 ) @ SV321 )
        = $true )
      | ( ( in @ SV506 @ SV461 )
        = $false )
      | ( ( SV461
          = ( cartesian_product2 @ SV321 @ SV447 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[2317]) ).

thf(2321,plain,
    ! [SV321: $i,SV447: $i,SV461: $i,SV506: $i] :
      ( ( ( in @ ( sK15_SY202 @ SV506 @ SV461 @ SV447 @ SV321 ) @ SV447 )
        = $true )
      | ( ( in @ SV506 @ SV461 )
        = $false )
      | ( ( SV461
          = ( cartesian_product2 @ SV321 @ SV447 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[2318]) ).

thf(2322,plain,
    $false = $true,
    inference(fo_atp_e,[status(thm)],[1308,2321,2320,2319,2315,2311,2310,2307,2306,2303,2302,2301,2300,2299,2298,2297,2286,2285,2282,2281,2278,2277,2276,2275,2268,2267,2264,2259,2253,2249,2246,2239,2238,2224,2223,2197,2196,2189,2188,2185,2184,2171,2166,2161,2155,2154,2151,2141,2132,2131,2117,2116,2103,2102,2101,2100,2089,2088,2087,2080,2071,2067,2065,2064,2055,2054,2049,2037,2033,2032,2031,2012,2000,1997,1993,1969,1962,1954,1953,1952,1951,1943,1942,1926,1925,1924,1918,1917,1910,1909,1901,1900,1899,1898,1897,1881,1876,1875,1840,1836,1830,1806,1768,1767,1766,1765,1764,1761,1760,1759,1754,1735,1696,1695,1694,1690,1687,1684,1683,1681,1677,1675,1672,1616,1612,1600,1590,1536,1532,1531,1530,1529,1522,1518,1515,1513,1512,1506,1498,1466,1465,1464,1463,1461,1460,1458,1457,1446,1440,1429,1375,1368,1367,1366,1365,1364,1363,1362,1361,1360,1359,1358]) ).

thf(2323,plain,
    $false,
    inference(solved_all_splits,[solved_all_splits(join,[])],[2322,1292]) ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.07/0.13  % Problem  : SEU165+2 : TPTP v8.1.0. Released v3.3.0.
% 0.07/0.14  % Command  : leo --timeout %d --proofoutput 1 --foatp e --atp e=./eprover %s
% 0.15/0.35  % Computer : n005.cluster.edu
% 0.15/0.35  % Model    : x86_64 x86_64
% 0.15/0.35  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.15/0.35  % Memory   : 8042.1875MB
% 0.15/0.35  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.15/0.35  % CPULimit : 300
% 0.15/0.35  % WCLimit  : 600
% 0.15/0.35  % DateTime : Sun Jun 19 21:35:08 EDT 2022
% 0.15/0.35  % CPUTime  : 
% 0.15/0.39  ..
% 0.21/0.41  
% 0.21/0.41   No.of.Axioms: 94
% 0.21/0.41  
% 0.21/0.41   Length.of.Defs: 0
% 0.21/0.41  
% 0.21/0.41   Contains.Choice.Funs: false
% 0.21/0.45  ..
% 0.21/0.47  (rf:0,axioms:94,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:96,loop_count:0,foatp_calls:0,translation:fof_full)....................................................................................................................................................
% 1.19/1.61  
% 1.19/1.61  ********************************
% 1.19/1.61  *   All subproblems solved!    *
% 1.19/1.61  ********************************
% 1.19/1.61  % SZS status Theorem for /export/starexec/sandbox/benchmark/theBenchmark.p : (rf:0,axioms:94,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:2322,loop_count:0,foatp_calls:1,translation:fof_full)
% 3.23/3.42  
% 3.23/3.42  %**** Beginning of derivation protocol ****
% 3.23/3.42  % SZS output start CNFRefutation
% See solution above
% 3.23/3.43  
% 3.23/3.43  %**** End of derivation protocol ****
% 3.23/3.43  %**** no. of clauses in derivation: 2323 ****
% 3.23/3.43  %**** clause counter: 2322 ****
% 3.23/3.43  
% 3.23/3.43  % SZS status Theorem for /export/starexec/sandbox/benchmark/theBenchmark.p : (rf:0,axioms:94,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:2322,loop_count:0,foatp_calls:1,translation:fof_full)
%------------------------------------------------------------------------------