TSTP Solution File: SEU154+2 by LEO-II---1.7.0

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : LEO-II---1.7.0
% Problem  : SEU154+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 : n024.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 12:07:15 EDT 2022

% Result   : Theorem 1.28s 1.51s
% Output   : CNFRefutation 1.59s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :   24
%            Number of leaves      :  104
% Syntax   : Number of formulae    :  986 ( 540 unt;  27 typ;   0 def)
%            Number of atoms       : 5910 (2363 equ;   0 cnn)
%            Maximal formula atoms :    6 (   6 avg)
%            Number of connectives : 12020 (2193   ~;1960   |; 134   &;7636   @)
%                                         (  46 <=>;  51  =>;   0  <=;   0 <~>)
%            Maximal formula depth :   11 (   3 avg)
%            Number of types       :    2 (   0 usr)
%            Number of type conns  :   44 (  44   >;   0   *;   0   +;   0  <<)
%            Number of symbols     :   30 (  27 usr;   7 con; 0-3 aty)
%            Number of variables   : 2655 (   0   ^2647   !;   8   ?;2655   :)

% Comments : 
%------------------------------------------------------------------------------
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_powerset,type,
    powerset: $i > $i ).

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

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

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

thf(tp_sK12_B,type,
    sK12_B: $i > $i ).

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

thf(tp_sK14_C,type,
    sK14_C: $i > $i > $i ).

thf(tp_sK15_C,type,
    sK15_C: $i > $i > $i ).

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

thf(tp_sK2_SY152,type,
    sK2_SY152: $i ).

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

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

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

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

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

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

thf(tp_sK9_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_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,
    empty @ empty_set,
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',fc1_xboole_0) ).

thf(19,axiom,
    $true,
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',dt_k4_xboole_0) ).

thf(20,axiom,
    $true,
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',dt_k3_xboole_0) ).

thf(21,axiom,
    $true,
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',dt_k2_xboole_0) ).

thf(22,axiom,
    $true,
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',dt_k2_tarski) ).

thf(23,axiom,
    $true,
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',dt_k1_zfmisc_1) ).

thf(24,axiom,
    $true,
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',dt_k1_xboole_0) ).

thf(25,axiom,
    $true,
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',dt_k1_tarski) ).

thf(26,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(27,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(28,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(29,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(30,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(31,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(32,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(33,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(34,axiom,
    ! [A: $i] :
      ( ( A = empty_set )
    <=> ! [B: $i] :
          ~ ( in @ B @ A ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',d1_xboole_0) ).

thf(35,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(36,axiom,
    ! [A: $i,B: $i] :
      ( ( A = B )
    <=> ( ( subset @ A @ B )
        & ( subset @ B @ A ) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',d10_xboole_0) ).

thf(37,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(38,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(39,axiom,
    ! [A: $i,B: $i] :
      ( ( unordered_pair @ A @ B )
      = ( unordered_pair @ B @ A ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',commutativity_k2_tarski) ).

thf(40,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(41,axiom,
    ! [A: $i,B: $i] :
      ( ( in @ A @ B )
     => ~ ( in @ B @ A ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',antisymmetry_r2_hidden) ).

thf(42,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(43,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(44,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(45,axiom,
    ! [A: $i,B: $i] :
      ( ( disjoint @ A @ B )
    <=> ( ( set_difference @ A @ B )
        = A ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t83_xboole_1) ).

thf(46,axiom,
    ! [A: $i,B: $i] : ( subset @ A @ ( set_union2 @ A @ B ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t7_xboole_1) ).

thf(47,axiom,
    ! [A: $i,B: $i] :
      ( ( subset @ ( singleton @ A ) @ ( singleton @ B ) )
     => ( A = B ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t6_zfmisc_1) ).

thf(48,axiom,
    ! [A: $i] :
      ( ( unordered_pair @ A @ A )
      = ( singleton @ A ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t69_enumset1) ).

thf(49,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(50,axiom,
    ! [A: $i,B: $i] :
      ~ ( ( subset @ A @ B )
        & ( proper_subset @ B @ A ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t60_xboole_1) ).

thf(51,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(52,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(53,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(54,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(55,axiom,
    ! [A: $i] :
      ( ( subset @ A @ empty_set )
     => ( A = empty_set ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t3_xboole_1) ).

thf(56,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(57,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(58,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(59,axiom,
    ! [A: $i,B: $i] : ( subset @ ( set_difference @ A @ B ) @ A ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t36_xboole_1) ).

thf(60,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(61,axiom,
    ! [A: $i] : ( subset @ empty_set @ A ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t2_xboole_1) ).

thf(62,axiom,
    ! [A: $i,B: $i] :
      ( ( subset @ A @ B )
     => ( ( set_intersection2 @ A @ B )
        = A ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t28_xboole_1) ).

thf(63,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(64,axiom,
    ( ( powerset @ empty_set )
    = ( singleton @ empty_set ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t1_zfmisc_1) ).

thf(65,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(66,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(67,axiom,
    ! [A: $i,B: $i] : ( subset @ ( set_intersection2 @ A @ B ) @ A ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t17_xboole_1) ).

thf(68,axiom,
    ! [A: $i,B: $i] :
      ( ( subset @ A @ B )
     => ( ( set_union2 @ A @ B )
        = B ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',t12_xboole_1) ).

thf(69,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(70,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(71,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(72,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(73,axiom,
    ! [A: $i,B: $i] :
      ( ( subset @ ( singleton @ A ) @ B )
    <=> ( in @ A @ B ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',l2_zfmisc_1) ).

thf(74,axiom,
    ! [A: $i,B: $i] :
      ~ ( ( disjoint @ ( singleton @ A ) @ B )
        & ( in @ A @ B ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',l25_zfmisc_1) ).

thf(75,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(76,axiom,
    ! [A: $i] :
      ( ( singleton @ A )
     != empty_set ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',l1_zfmisc_1) ).

thf(77,conjecture,
    ! [A: $i,B: $i] :
      ( ~ ( in @ A @ B )
     => ( disjoint @ ( singleton @ A ) @ B ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',l28_zfmisc_1) ).

thf(78,negated_conjecture,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( in @ A @ B )
         => ( disjoint @ ( singleton @ A ) @ B ) ) )
    = $false ),
    inference(negate_conjecture,[status(cth)],[77]) ).

thf(79,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( in @ A @ B )
         => ( disjoint @ ( singleton @ A ) @ B ) ) )
    = $false ),
    inference(unfold_def,[status(thm)],[78]) ).

thf(80,plain,
    ( ( ! [A: $i,B: $i] :
          ~ ( ( empty @ A )
            & ( A != B )
            & ( empty @ B ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[1]) ).

thf(81,plain,
    ( ( ! [A: $i,B: $i] :
          ~ ( ( in @ A @ B )
            & ( empty @ B ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[2]) ).

thf(82,plain,
    ( ( ! [A: $i] :
          ( ( empty @ A )
         => ( A = empty_set ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[3]) ).

thf(83,plain,
    ( ( ! [A: $i] :
          ( ( set_difference @ empty_set @ A )
          = empty_set ) )
    = $true ),
    inference(unfold_def,[status(thm)],[4]) ).

thf(84,plain,
    ( ( ! [A: $i] :
          ( ( set_difference @ A @ empty_set )
          = A ) )
    = $true ),
    inference(unfold_def,[status(thm)],[5]) ).

thf(85,plain,
    ( ( ! [A: $i,B: $i] :
          ( ! [C: $i] :
              ( ( in @ C @ A )
            <=> ( in @ C @ B ) )
         => ( A = B ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[6]) ).

thf(86,plain,
    ( ( ! [A: $i] :
          ( ( set_intersection2 @ A @ empty_set )
          = empty_set ) )
    = $true ),
    inference(unfold_def,[status(thm)],[7]) ).

thf(87,plain,
    ( ( ! [A: $i] :
          ( ( set_union2 @ A @ empty_set )
          = A ) )
    = $true ),
    inference(unfold_def,[status(thm)],[8]) ).

thf(88,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( disjoint @ A @ B )
         => ( disjoint @ B @ A ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[9]) ).

thf(89,plain,
    ( ( ! [A: $i,B: $i] : ( subset @ A @ A ) )
    = $true ),
    inference(unfold_def,[status(thm)],[10]) ).

thf(90,plain,
    ( ( ? [A: $i] :
          ~ ( empty @ A ) )
    = $true ),
    inference(unfold_def,[status(thm)],[11]) ).

thf(91,plain,
    ( ( ? [A: $i] : ( empty @ A ) )
    = $true ),
    inference(unfold_def,[status(thm)],[12]) ).

thf(92,plain,
    ( ( ! [A: $i,B: $i] :
          ~ ( proper_subset @ A @ A ) )
    = $true ),
    inference(unfold_def,[status(thm)],[13]) ).

thf(93,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( set_intersection2 @ A @ A )
          = A ) )
    = $true ),
    inference(unfold_def,[status(thm)],[14]) ).

thf(94,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( set_union2 @ A @ A )
          = A ) )
    = $true ),
    inference(unfold_def,[status(thm)],[15]) ).

thf(95,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( empty @ A )
         => ~ ( empty @ ( set_union2 @ B @ A ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[16]) ).

thf(96,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( empty @ A )
         => ~ ( empty @ ( set_union2 @ A @ B ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[17]) ).

thf(97,plain,
    ( ( empty @ empty_set )
    = $true ),
    inference(unfold_def,[status(thm)],[18]) ).

thf(98,plain,
    $true = $true,
    inference(unfold_def,[status(thm)],[19]) ).

thf(99,plain,
    $true = $true,
    inference(unfold_def,[status(thm)],[20]) ).

thf(100,plain,
    $true = $true,
    inference(unfold_def,[status(thm)],[21]) ).

thf(101,plain,
    $true = $true,
    inference(unfold_def,[status(thm)],[22]) ).

thf(102,plain,
    $true = $true,
    inference(unfold_def,[status(thm)],[23]) ).

thf(103,plain,
    $true = $true,
    inference(unfold_def,[status(thm)],[24]) ).

thf(104,plain,
    $true = $true,
    inference(unfold_def,[status(thm)],[25]) ).

thf(105,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( proper_subset @ A @ B )
        <=> ( ( subset @ A @ B )
            & ( A != B ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[26]) ).

thf(106,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( disjoint @ A @ B )
        <=> ( ( set_intersection2 @ A @ B )
            = empty_set ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[27]) ).

thf(107,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)],[28]) ).

thf(108,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)],[29]) ).

thf(109,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( subset @ A @ B )
        <=> ! [C: $i] :
              ( ( in @ C @ A )
             => ( in @ C @ B ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[30]) ).

thf(110,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)],[31]) ).

thf(111,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)],[32]) ).

thf(112,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( B
            = ( powerset @ A ) )
        <=> ! [C: $i] :
              ( ( in @ C @ B )
            <=> ( subset @ C @ A ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[33]) ).

thf(113,plain,
    ( ( ! [A: $i] :
          ( ( A = empty_set )
        <=> ! [B: $i] :
              ~ ( in @ B @ A ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[34]) ).

thf(114,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( B
            = ( singleton @ A ) )
        <=> ! [C: $i] :
              ( ( in @ C @ B )
            <=> ( C = A ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[35]) ).

thf(115,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( A = B )
        <=> ( ( subset @ A @ B )
            & ( subset @ B @ A ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[36]) ).

thf(116,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( set_intersection2 @ A @ B )
          = ( set_intersection2 @ B @ A ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[37]) ).

thf(117,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( set_union2 @ A @ B )
          = ( set_union2 @ B @ A ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[38]) ).

thf(118,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( unordered_pair @ A @ B )
          = ( unordered_pair @ B @ A ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[39]) ).

thf(119,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( proper_subset @ A @ B )
         => ~ ( proper_subset @ B @ A ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[40]) ).

thf(120,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( in @ A @ B )
         => ~ ( in @ B @ A ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[41]) ).

thf(121,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ( ( singleton @ A )
            = ( unordered_pair @ B @ C ) )
         => ( B = C ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[42]) ).

thf(122,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ( ( singleton @ A )
            = ( unordered_pair @ B @ C ) )
         => ( A = B ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[43]) ).

thf(123,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)],[44]) ).

thf(124,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( disjoint @ A @ B )
        <=> ( ( set_difference @ A @ B )
            = A ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[45]) ).

thf(125,plain,
    ( ( ! [A: $i,B: $i] : ( subset @ A @ ( set_union2 @ A @ B ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[46]) ).

thf(126,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( subset @ ( singleton @ A ) @ ( singleton @ B ) )
         => ( A = B ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[47]) ).

thf(127,plain,
    ( ( ! [A: $i] :
          ( ( unordered_pair @ A @ A )
          = ( singleton @ A ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[48]) ).

thf(128,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ( ( subset @ A @ B )
            & ( disjoint @ B @ C ) )
         => ( disjoint @ A @ C ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[49]) ).

thf(129,plain,
    ( ( ! [A: $i,B: $i] :
          ~ ( ( subset @ A @ B )
            & ( proper_subset @ B @ A ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[50]) ).

thf(130,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)],[51]) ).

thf(131,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( set_difference @ A @ ( set_difference @ A @ B ) )
          = ( set_intersection2 @ A @ B ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[52]) ).

thf(132,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( subset @ A @ B )
         => ( B
            = ( set_union2 @ A @ ( set_difference @ B @ A ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[53]) ).

thf(133,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( set_difference @ ( set_union2 @ A @ B ) @ B )
          = ( set_difference @ A @ B ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[54]) ).

thf(134,plain,
    ( ( ! [A: $i] :
          ( ( subset @ A @ empty_set )
         => ( A = empty_set ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[55]) ).

thf(135,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)],[56]) ).

thf(136,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( set_union2 @ A @ ( set_difference @ B @ A ) )
          = ( set_union2 @ A @ B ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[57]) ).

thf(137,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( ( set_difference @ A @ B )
            = empty_set )
        <=> ( subset @ A @ B ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[58]) ).

thf(138,plain,
    ( ( ! [A: $i,B: $i] : ( subset @ ( set_difference @ A @ B ) @ A ) )
    = $true ),
    inference(unfold_def,[status(thm)],[59]) ).

thf(139,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)],[60]) ).

thf(140,plain,
    ( ( ! [A: $i] : ( subset @ empty_set @ A ) )
    = $true ),
    inference(unfold_def,[status(thm)],[61]) ).

thf(141,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( subset @ A @ B )
         => ( ( set_intersection2 @ A @ B )
            = A ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[62]) ).

thf(142,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)],[63]) ).

thf(143,plain,
    ( ( ( powerset @ empty_set )
      = ( singleton @ empty_set ) )
    = $true ),
    inference(unfold_def,[status(thm)],[64]) ).

thf(144,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ( ( subset @ A @ B )
            & ( subset @ B @ C ) )
         => ( subset @ A @ C ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[65]) ).

thf(145,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)],[66]) ).

thf(146,plain,
    ( ( ! [A: $i,B: $i] : ( subset @ ( set_intersection2 @ A @ B ) @ A ) )
    = $true ),
    inference(unfold_def,[status(thm)],[67]) ).

thf(147,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( subset @ A @ B )
         => ( ( set_union2 @ A @ B )
            = B ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[68]) ).

thf(148,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)],[69]) ).

thf(149,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( subset @ A @ ( singleton @ B ) )
        <=> ( ( A = empty_set )
            | ( A
              = ( singleton @ B ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[70]) ).

thf(150,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)],[71]) ).

thf(151,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( ( set_difference @ A @ B )
            = empty_set )
        <=> ( subset @ A @ B ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[72]) ).

thf(152,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( subset @ ( singleton @ A ) @ B )
        <=> ( in @ A @ B ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[73]) ).

thf(153,plain,
    ( ( ! [A: $i,B: $i] :
          ~ ( ( disjoint @ ( singleton @ A ) @ B )
            & ( in @ A @ B ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[74]) ).

thf(154,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( in @ A @ B )
         => ( ( set_union2 @ ( singleton @ A ) @ B )
            = B ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[75]) ).

thf(155,plain,
    ( ( ! [A: $i] :
          ( ( singleton @ A )
         != empty_set ) )
    = $true ),
    inference(unfold_def,[status(thm)],[76]) ).

thf(156,plain,
    ( ( ! [SY152: $i] :
          ( ~ ( in @ sK1_A @ SY152 )
         => ( disjoint @ ( singleton @ sK1_A ) @ SY152 ) ) )
    = $false ),
    inference(extcnf_forall_neg,[status(esa)],[79]) ).

thf(157,plain,
    ( ( ~ ( in @ sK1_A @ sK2_SY152 )
     => ( disjoint @ ( singleton @ sK1_A ) @ sK2_SY152 ) )
    = $false ),
    inference(extcnf_forall_neg,[status(esa)],[156]) ).

thf(158,plain,
    ( ( ~ ( in @ sK1_A @ sK2_SY152 ) )
    = $true ),
    inference(standard_cnf,[status(thm)],[157]) ).

thf(159,plain,
    ( ( disjoint @ ( singleton @ sK1_A ) @ sK2_SY152 )
    = $false ),
    inference(standard_cnf,[status(thm)],[157]) ).

thf(160,plain,
    ( ( ~ ( disjoint @ ( singleton @ sK1_A ) @ sK2_SY152 ) )
    = $true ),
    inference(polarity_switch,[status(thm)],[159]) ).

thf(161,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( A = B )
          | ~ ( empty @ A )
          | ~ ( empty @ B ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[80]) ).

thf(162,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( empty @ B )
          | ~ ( in @ A @ B ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[81]) ).

thf(163,plain,
    ( ( ! [A: $i] :
          ( ~ ( empty @ A )
          | ( A = empty_set ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[82]) ).

thf(164,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( ( ~ ( in @ ( sK3_C @ B @ A ) @ A )
              | ~ ( in @ ( sK3_C @ B @ A ) @ B ) )
            & ( ( in @ ( sK3_C @ B @ A ) @ A )
              | ( in @ ( sK3_C @ B @ A ) @ B ) ) )
          | ( A = B ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[85]) ).

thf(165,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( disjoint @ A @ B )
          | ( disjoint @ B @ A ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[88]) ).

thf(166,plain,
    ( ( ! [A: $i] : ( subset @ A @ A ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[89]) ).

thf(167,plain,
    ( ( ~ ( empty @ sK4_A ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[90]) ).

thf(168,plain,
    ( ( empty @ sK5_A )
    = $true ),
    inference(extcnf_combined,[status(esa)],[91]) ).

thf(169,plain,
    ( ( ! [A: $i] :
          ~ ( proper_subset @ A @ A ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[92]) ).

thf(170,plain,
    ( ( ! [A: $i] :
          ( ( set_intersection2 @ A @ A )
          = A ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[93]) ).

thf(171,plain,
    ( ( ! [A: $i] :
          ( ( set_union2 @ A @ A )
          = A ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[94]) ).

thf(172,plain,
    ( ( ! [A: $i] :
          ( ( empty @ A )
          | ! [B: $i] :
              ~ ( empty @ ( set_union2 @ B @ A ) ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[95]) ).

thf(173,plain,
    ( ( ! [A: $i] :
          ( ( empty @ A )
          | ! [B: $i] :
              ~ ( empty @ ( set_union2 @ A @ B ) ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[96]) ).

thf(174,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)],[105]) ).

thf(175,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)],[106]) ).

thf(176,plain,
    ( ( ! [A: $i] :
          ( ! [B: $i,C: $i] :
              ( ( ( ~ ( in @ ( sK6_D @ C @ B @ A ) @ A )
                  | ( in @ ( sK6_D @ C @ B @ A ) @ B )
                  | ~ ( in @ ( sK6_D @ C @ B @ A ) @ C ) )
                & ( ( in @ ( sK6_D @ C @ B @ A ) @ A )
                  | ( in @ ( sK6_D @ C @ B @ A ) @ C ) )
                & ( ~ ( in @ ( sK6_D @ C @ B @ A ) @ B )
                  | ( in @ ( sK6_D @ C @ B @ A ) @ C ) ) )
              | ( C
                = ( set_difference @ A @ B ) ) )
          & ! [B: $i,C: $i] :
              ( ( C
               != ( set_difference @ A @ B ) )
              | ( ! [D: $i] :
                    ( ~ ( in @ D @ A )
                    | ( in @ D @ B )
                    | ( in @ D @ C ) )
                & ! [D: $i] :
                    ( ~ ( in @ D @ C )
                    | ( in @ D @ A ) )
                & ! [D: $i] :
                    ( ~ ( in @ D @ C )
                    | ~ ( in @ D @ B ) ) ) ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[107]) ).

thf(177,plain,
    ( ( ! [A: $i] :
          ( ! [B: $i,C: $i] :
              ( ( ( ~ ( in @ ( sK7_D @ C @ B @ A ) @ A )
                  | ~ ( in @ ( sK7_D @ C @ B @ A ) @ B )
                  | ~ ( in @ ( sK7_D @ C @ B @ A ) @ C ) )
                & ( ( in @ ( sK7_D @ C @ B @ A ) @ A )
                  | ( in @ ( sK7_D @ C @ B @ A ) @ C ) )
                & ( ( in @ ( sK7_D @ C @ B @ A ) @ B )
                  | ( in @ ( sK7_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)],[108]) ).

thf(178,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( ( in @ ( sK8_C @ B @ A ) @ A )
            & ~ ( in @ ( sK8_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)],[109]) ).

thf(179,plain,
    ( ( ! [A: $i] :
          ( ! [B: $i,C: $i] :
              ( ( ( ~ ( in @ ( sK9_D @ C @ B @ A ) @ C )
                  | ~ ( in @ ( sK9_D @ C @ B @ A ) @ A ) )
                & ( ~ ( in @ ( sK9_D @ C @ B @ A ) @ C )
                  | ~ ( in @ ( sK9_D @ C @ B @ A ) @ B ) )
                & ( ( in @ ( sK9_D @ C @ B @ A ) @ C )
                  | ( in @ ( sK9_D @ C @ B @ A ) @ A )
                  | ( in @ ( sK9_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)],[110]) ).

thf(180,plain,
    ( ( ! [A: $i] :
          ( ! [B: $i,C: $i] :
              ( ( ( ~ ( in @ ( sK10_D @ C @ B @ A ) @ C )
                  | ( ( sK10_D @ C @ B @ A )
                   != A ) )
                & ( ~ ( in @ ( sK10_D @ C @ B @ A ) @ C )
                  | ( ( sK10_D @ C @ B @ A )
                   != B ) )
                & ( ( in @ ( sK10_D @ C @ B @ A ) @ C )
                  | ( ( sK10_D @ C @ B @ A )
                    = A )
                  | ( ( sK10_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)],[111]) ).

thf(181,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( ( ~ ( in @ ( sK11_C @ B @ A ) @ B )
              | ~ ( subset @ ( sK11_C @ B @ A ) @ A ) )
            & ( ( in @ ( sK11_C @ B @ A ) @ B )
              | ( subset @ ( sK11_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)],[112]) ).

thf(182,plain,
    ( ( ! [A: $i] :
          ( ( in @ ( sK12_B @ A ) @ A )
          | ( A = empty_set ) )
      & ! [A: $i] :
          ( ( A != empty_set )
          | ! [B: $i] :
              ~ ( in @ B @ A ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[113]) ).

thf(183,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( ( ( ( sK13_C @ B @ A )
               != A )
              | ~ ( in @ ( sK13_C @ B @ A ) @ B ) )
            & ( ( ( sK13_C @ B @ A )
                = A )
              | ( in @ ( sK13_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)],[114]) ).

thf(184,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)],[115]) ).

thf(185,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( proper_subset @ A @ B )
          | ~ ( proper_subset @ B @ A ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[119]) ).

thf(186,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( in @ A @ B )
          | ~ ( in @ B @ A ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[120]) ).

thf(187,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ( ( singleton @ A )
           != ( unordered_pair @ B @ C ) )
          | ( B = C ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[121]) ).

thf(188,plain,
    ( ( ! [A: $i,B: $i] :
          ( ! [C: $i] :
              ( ( singleton @ A )
             != ( unordered_pair @ B @ C ) )
          | ( A = B ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[122]) ).

thf(189,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)],[123]) ).

thf(190,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)],[124]) ).

thf(191,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( subset @ ( singleton @ A ) @ ( singleton @ B ) )
          | ( A = B ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[126]) ).

thf(192,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ~ ( disjoint @ B @ C )
          | ~ ( subset @ A @ B )
          | ( disjoint @ A @ C ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[128]) ).

thf(193,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( proper_subset @ B @ A )
          | ~ ( subset @ A @ B ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[129]) ).

thf(194,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( disjoint @ A @ B )
          | ( in @ ( sK14_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)],[130]) ).

thf(195,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( subset @ A @ B )
          | ( B
            = ( set_union2 @ A @ ( set_difference @ B @ A ) ) ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[132]) ).

thf(196,plain,
    ( ( ! [A: $i] :
          ( ~ ( subset @ A @ empty_set )
          | ( A = empty_set ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[134]) ).

thf(197,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( disjoint @ A @ B )
          | ( ( in @ ( sK15_C @ B @ A ) @ A )
            & ( in @ ( sK15_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)],[135]) ).

thf(198,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)],[137]) ).

thf(199,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)],[139]) ).

thf(200,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( subset @ A @ B )
          | ( ( set_intersection2 @ A @ B )
            = A ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[141]) ).

thf(201,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)],[142]) ).

thf(202,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ~ ( subset @ A @ B )
          | ~ ( subset @ B @ C )
          | ( subset @ A @ C ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[144]) ).

thf(203,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)],[145]) ).

thf(204,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( subset @ A @ B )
          | ( ( set_union2 @ A @ B )
            = B ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[147]) ).

thf(205,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)],[148]) ).

thf(206,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)],[149]) ).

thf(207,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)],[150]) ).

thf(208,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)],[151]) ).

thf(209,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)],[152]) ).

thf(210,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( disjoint @ ( singleton @ A ) @ B )
          | ~ ( in @ A @ B ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[153]) ).

thf(211,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( in @ A @ B )
          | ( ( set_union2 @ ( singleton @ A ) @ B )
            = B ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[154]) ).

thf(212,plain,
    ( ( ! [A: $i] :
          ( ( singleton @ A )
         != empty_set ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[155]) ).

thf(213,plain,
    ( ( ! [A: $i] :
          ( ( singleton @ A )
         != empty_set ) )
    = $true ),
    inference(copy,[status(thm)],[212]) ).

thf(214,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( in @ A @ B )
          | ( ( set_union2 @ ( singleton @ A ) @ B )
            = B ) ) )
    = $true ),
    inference(copy,[status(thm)],[211]) ).

thf(215,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( disjoint @ ( singleton @ A ) @ B )
          | ~ ( in @ A @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[210]) ).

thf(216,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)],[209]) ).

thf(217,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)],[208]) ).

thf(218,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)],[207]) ).

thf(219,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)],[206]) ).

thf(220,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)],[205]) ).

thf(221,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( subset @ A @ B )
          | ( ( set_union2 @ A @ B )
            = B ) ) )
    = $true ),
    inference(copy,[status(thm)],[204]) ).

thf(222,plain,
    ( ( ! [A: $i,B: $i] : ( subset @ ( set_intersection2 @ A @ B ) @ A ) )
    = $true ),
    inference(copy,[status(thm)],[146]) ).

thf(223,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ~ ( subset @ A @ B )
          | ~ ( subset @ A @ C )
          | ( subset @ A @ ( set_intersection2 @ B @ C ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[203]) ).

thf(224,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ~ ( subset @ A @ B )
          | ~ ( subset @ B @ C )
          | ( subset @ A @ C ) ) )
    = $true ),
    inference(copy,[status(thm)],[202]) ).

thf(225,plain,
    ( ( ( powerset @ empty_set )
      = ( singleton @ empty_set ) )
    = $true ),
    inference(copy,[status(thm)],[143]) ).

thf(226,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( subset @ A @ B )
          | ! [C: $i] : ( subset @ ( set_intersection2 @ A @ C ) @ ( set_intersection2 @ B @ C ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[201]) ).

thf(227,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( subset @ A @ B )
          | ( ( set_intersection2 @ A @ B )
            = A ) ) )
    = $true ),
    inference(copy,[status(thm)],[200]) ).

thf(228,plain,
    ( ( ! [A: $i] : ( subset @ empty_set @ A ) )
    = $true ),
    inference(copy,[status(thm)],[140]) ).

thf(229,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( subset @ A @ B )
          | ! [C: $i] : ( subset @ ( set_difference @ A @ C ) @ ( set_difference @ B @ C ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[199]) ).

thf(230,plain,
    ( ( ! [A: $i,B: $i] : ( subset @ ( set_difference @ A @ B ) @ A ) )
    = $true ),
    inference(copy,[status(thm)],[138]) ).

thf(231,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( ( set_difference @ A @ B )
           != empty_set )
          | ( subset @ A @ B ) )
      & ! [A: $i,B: $i] :
          ( ~ ( subset @ A @ B )
          | ( ( set_difference @ A @ B )
            = empty_set ) ) )
    = $true ),
    inference(copy,[status(thm)],[198]) ).

thf(232,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( set_union2 @ A @ ( set_difference @ B @ A ) )
          = ( set_union2 @ A @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[136]) ).

thf(233,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( disjoint @ A @ B )
          | ( ( in @ ( sK15_C @ B @ A ) @ A )
            & ( in @ ( sK15_C @ B @ A ) @ B ) ) )
      & ! [A: $i,B: $i] :
          ( ! [C: $i] :
              ( ~ ( in @ C @ A )
              | ~ ( in @ C @ B ) )
          | ~ ( disjoint @ A @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[197]) ).

thf(234,plain,
    ( ( ! [A: $i] :
          ( ~ ( subset @ A @ empty_set )
          | ( A = empty_set ) ) )
    = $true ),
    inference(copy,[status(thm)],[196]) ).

thf(235,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( set_difference @ ( set_union2 @ A @ B ) @ B )
          = ( set_difference @ A @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[133]) ).

thf(236,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( subset @ A @ B )
          | ( B
            = ( set_union2 @ A @ ( set_difference @ B @ A ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[195]) ).

thf(237,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( set_difference @ A @ ( set_difference @ A @ B ) )
          = ( set_intersection2 @ A @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[131]) ).

thf(238,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( disjoint @ A @ B )
          | ( in @ ( sK14_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)],[194]) ).

thf(239,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( proper_subset @ B @ A )
          | ~ ( subset @ A @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[193]) ).

thf(240,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ~ ( disjoint @ B @ C )
          | ~ ( subset @ A @ B )
          | ( disjoint @ A @ C ) ) )
    = $true ),
    inference(copy,[status(thm)],[192]) ).

thf(241,plain,
    ( ( ! [A: $i] :
          ( ( unordered_pair @ A @ A )
          = ( singleton @ A ) ) )
    = $true ),
    inference(copy,[status(thm)],[127]) ).

thf(242,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( subset @ ( singleton @ A ) @ ( singleton @ B ) )
          | ( A = B ) ) )
    = $true ),
    inference(copy,[status(thm)],[191]) ).

thf(243,plain,
    ( ( ! [A: $i,B: $i] : ( subset @ A @ ( set_union2 @ A @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[125]) ).

thf(244,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)],[190]) ).

thf(245,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ~ ( subset @ A @ B )
          | ~ ( subset @ C @ B )
          | ( subset @ ( set_union2 @ A @ C ) @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[189]) ).

thf(246,plain,
    ( ( ! [A: $i,B: $i] :
          ( ! [C: $i] :
              ( ( singleton @ A )
             != ( unordered_pair @ B @ C ) )
          | ( A = B ) ) )
    = $true ),
    inference(copy,[status(thm)],[188]) ).

thf(247,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ( ( singleton @ A )
           != ( unordered_pair @ B @ C ) )
          | ( B = C ) ) )
    = $true ),
    inference(copy,[status(thm)],[187]) ).

thf(248,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( in @ A @ B )
          | ~ ( in @ B @ A ) ) )
    = $true ),
    inference(copy,[status(thm)],[186]) ).

thf(249,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( proper_subset @ A @ B )
          | ~ ( proper_subset @ B @ A ) ) )
    = $true ),
    inference(copy,[status(thm)],[185]) ).

thf(250,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( unordered_pair @ A @ B )
          = ( unordered_pair @ B @ A ) ) )
    = $true ),
    inference(copy,[status(thm)],[118]) ).

thf(251,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( set_union2 @ A @ B )
          = ( set_union2 @ B @ A ) ) )
    = $true ),
    inference(copy,[status(thm)],[117]) ).

thf(252,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( set_intersection2 @ A @ B )
          = ( set_intersection2 @ B @ A ) ) )
    = $true ),
    inference(copy,[status(thm)],[116]) ).

thf(253,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)],[184]) ).

thf(254,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( ( ( ( sK13_C @ B @ A )
               != A )
              | ~ ( in @ ( sK13_C @ B @ A ) @ B ) )
            & ( ( ( sK13_C @ B @ A )
                = A )
              | ( in @ ( sK13_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)],[183]) ).

thf(255,plain,
    ( ( ! [A: $i] :
          ( ( in @ ( sK12_B @ A ) @ A )
          | ( A = empty_set ) )
      & ! [A: $i] :
          ( ( A != empty_set )
          | ! [B: $i] :
              ~ ( in @ B @ A ) ) )
    = $true ),
    inference(copy,[status(thm)],[182]) ).

thf(256,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( ( ~ ( in @ ( sK11_C @ B @ A ) @ B )
              | ~ ( subset @ ( sK11_C @ B @ A ) @ A ) )
            & ( ( in @ ( sK11_C @ B @ A ) @ B )
              | ( subset @ ( sK11_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)],[181]) ).

thf(257,plain,
    ( ( ! [A: $i] :
          ( ! [B: $i,C: $i] :
              ( ( ( ~ ( in @ ( sK10_D @ C @ B @ A ) @ C )
                  | ( ( sK10_D @ C @ B @ A )
                   != A ) )
                & ( ~ ( in @ ( sK10_D @ C @ B @ A ) @ C )
                  | ( ( sK10_D @ C @ B @ A )
                   != B ) )
                & ( ( in @ ( sK10_D @ C @ B @ A ) @ C )
                  | ( ( sK10_D @ C @ B @ A )
                    = A )
                  | ( ( sK10_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)],[180]) ).

thf(258,plain,
    ( ( ! [A: $i] :
          ( ! [B: $i,C: $i] :
              ( ( ( ~ ( in @ ( sK9_D @ C @ B @ A ) @ C )
                  | ~ ( in @ ( sK9_D @ C @ B @ A ) @ A ) )
                & ( ~ ( in @ ( sK9_D @ C @ B @ A ) @ C )
                  | ~ ( in @ ( sK9_D @ C @ B @ A ) @ B ) )
                & ( ( in @ ( sK9_D @ C @ B @ A ) @ C )
                  | ( in @ ( sK9_D @ C @ B @ A ) @ A )
                  | ( in @ ( sK9_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)],[179]) ).

thf(259,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( ( in @ ( sK8_C @ B @ A ) @ A )
            & ~ ( in @ ( sK8_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)],[178]) ).

thf(260,plain,
    ( ( ! [A: $i] :
          ( ! [B: $i,C: $i] :
              ( ( ( ~ ( in @ ( sK7_D @ C @ B @ A ) @ A )
                  | ~ ( in @ ( sK7_D @ C @ B @ A ) @ B )
                  | ~ ( in @ ( sK7_D @ C @ B @ A ) @ C ) )
                & ( ( in @ ( sK7_D @ C @ B @ A ) @ A )
                  | ( in @ ( sK7_D @ C @ B @ A ) @ C ) )
                & ( ( in @ ( sK7_D @ C @ B @ A ) @ B )
                  | ( in @ ( sK7_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)],[177]) ).

thf(261,plain,
    ( ( ! [A: $i] :
          ( ! [B: $i,C: $i] :
              ( ( ( ~ ( in @ ( sK6_D @ C @ B @ A ) @ A )
                  | ( in @ ( sK6_D @ C @ B @ A ) @ B )
                  | ~ ( in @ ( sK6_D @ C @ B @ A ) @ C ) )
                & ( ( in @ ( sK6_D @ C @ B @ A ) @ A )
                  | ( in @ ( sK6_D @ C @ B @ A ) @ C ) )
                & ( ~ ( in @ ( sK6_D @ C @ B @ A ) @ B )
                  | ( in @ ( sK6_D @ C @ B @ A ) @ C ) ) )
              | ( C
                = ( set_difference @ A @ B ) ) )
          & ! [B: $i,C: $i] :
              ( ( C
               != ( set_difference @ A @ B ) )
              | ( ! [D: $i] :
                    ( ~ ( in @ D @ A )
                    | ( in @ D @ B )
                    | ( in @ D @ C ) )
                & ! [D: $i] :
                    ( ~ ( in @ D @ C )
                    | ( in @ D @ A ) )
                & ! [D: $i] :
                    ( ~ ( in @ D @ C )
                    | ~ ( in @ D @ B ) ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[176]) ).

thf(262,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)],[175]) ).

thf(263,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)],[174]) ).

thf(264,plain,
    $true = $true,
    inference(copy,[status(thm)],[104]) ).

thf(265,plain,
    $true = $true,
    inference(copy,[status(thm)],[103]) ).

thf(266,plain,
    $true = $true,
    inference(copy,[status(thm)],[102]) ).

thf(267,plain,
    $true = $true,
    inference(copy,[status(thm)],[101]) ).

thf(268,plain,
    $true = $true,
    inference(copy,[status(thm)],[100]) ).

thf(269,plain,
    $true = $true,
    inference(copy,[status(thm)],[99]) ).

thf(270,plain,
    $true = $true,
    inference(copy,[status(thm)],[98]) ).

thf(271,plain,
    ( ( empty @ empty_set )
    = $true ),
    inference(copy,[status(thm)],[97]) ).

thf(272,plain,
    ( ( ! [A: $i] :
          ( ( empty @ A )
          | ! [B: $i] :
              ~ ( empty @ ( set_union2 @ A @ B ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[173]) ).

thf(273,plain,
    ( ( ! [A: $i] :
          ( ( empty @ A )
          | ! [B: $i] :
              ~ ( empty @ ( set_union2 @ B @ A ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[172]) ).

thf(274,plain,
    ( ( ! [A: $i] :
          ( ( set_union2 @ A @ A )
          = A ) )
    = $true ),
    inference(copy,[status(thm)],[171]) ).

thf(275,plain,
    ( ( ! [A: $i] :
          ( ( set_intersection2 @ A @ A )
          = A ) )
    = $true ),
    inference(copy,[status(thm)],[170]) ).

thf(276,plain,
    ( ( ! [A: $i] :
          ~ ( proper_subset @ A @ A ) )
    = $true ),
    inference(copy,[status(thm)],[169]) ).

thf(277,plain,
    ( ( empty @ sK5_A )
    = $true ),
    inference(copy,[status(thm)],[168]) ).

thf(278,plain,
    ( ( ~ ( empty @ sK4_A ) )
    = $true ),
    inference(copy,[status(thm)],[167]) ).

thf(279,plain,
    ( ( ! [A: $i] : ( subset @ A @ A ) )
    = $true ),
    inference(copy,[status(thm)],[166]) ).

thf(280,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( disjoint @ A @ B )
          | ( disjoint @ B @ A ) ) )
    = $true ),
    inference(copy,[status(thm)],[165]) ).

thf(281,plain,
    ( ( ! [A: $i] :
          ( ( set_union2 @ A @ empty_set )
          = A ) )
    = $true ),
    inference(copy,[status(thm)],[87]) ).

thf(282,plain,
    ( ( ! [A: $i] :
          ( ( set_intersection2 @ A @ empty_set )
          = empty_set ) )
    = $true ),
    inference(copy,[status(thm)],[86]) ).

thf(283,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( ( ~ ( in @ ( sK3_C @ B @ A ) @ A )
              | ~ ( in @ ( sK3_C @ B @ A ) @ B ) )
            & ( ( in @ ( sK3_C @ B @ A ) @ A )
              | ( in @ ( sK3_C @ B @ A ) @ B ) ) )
          | ( A = B ) ) )
    = $true ),
    inference(copy,[status(thm)],[164]) ).

thf(284,plain,
    ( ( ! [A: $i] :
          ( ( set_difference @ A @ empty_set )
          = A ) )
    = $true ),
    inference(copy,[status(thm)],[84]) ).

thf(285,plain,
    ( ( ! [A: $i] :
          ( ( set_difference @ empty_set @ A )
          = empty_set ) )
    = $true ),
    inference(copy,[status(thm)],[83]) ).

thf(286,plain,
    ( ( ! [A: $i] :
          ( ~ ( empty @ A )
          | ( A = empty_set ) ) )
    = $true ),
    inference(copy,[status(thm)],[163]) ).

thf(287,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( empty @ B )
          | ~ ( in @ A @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[162]) ).

thf(288,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( A = B )
          | ~ ( empty @ A )
          | ~ ( empty @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[161]) ).

thf(289,plain,
    ( ( ~ ( in @ sK1_A @ sK2_SY152 ) )
    = $true ),
    inference(copy,[status(thm)],[158]) ).

thf(290,plain,
    ( ( ~ ( disjoint @ ( singleton @ sK1_A ) @ sK2_SY152 ) )
    = $true ),
    inference(copy,[status(thm)],[160]) ).

thf(291,plain,
    ( ( ~ ( ~ ! [SX0: $i,SX1: $i] :
                ( ( disjoint @ SX0 @ SX1 )
                | ( in @ ( sK14_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)],[238]) ).

thf(292,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)],[263]) ).

thf(293,plain,
    ( ( ! [SX0: $i] :
          ~ ( ~ ! [SX1: $i,SX2: $i] :
                  ( ~ ( ~ ( ~ ( in @ ( sK7_D @ SX2 @ SX1 @ SX0 ) @ SX0 )
                          | ~ ( in @ ( sK7_D @ SX2 @ SX1 @ SX0 ) @ SX1 )
                          | ~ ( in @ ( sK7_D @ SX2 @ SX1 @ SX0 ) @ SX2 ) )
                      | ~ ~ ( ~ ( ( in @ ( sK7_D @ SX2 @ SX1 @ SX0 ) @ SX0 )
                                | ( in @ ( sK7_D @ SX2 @ SX1 @ SX0 ) @ SX2 ) )
                            | ~ ( ( in @ ( sK7_D @ SX2 @ SX1 @ SX0 ) @ SX1 )
                                | ( in @ ( sK7_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)],[260]) ).

thf(294,plain,
    ( ( ~ ( ~ ! [SX0: $i] :
                ( ( in @ ( sK12_B @ SX0 ) @ SX0 )
                | ( SX0 = empty_set ) )
          | ~ ! [SX0: $i] :
                ( ( SX0 != empty_set )
                | ! [SX1: $i] :
                    ~ ( in @ SX1 @ SX0 ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[255]) ).

thf(295,plain,
    ( ( ~ ( ~ ! [SX0: $i,SX1: $i] :
                ( ~ ( ~ ( ( ( sK13_C @ SX1 @ SX0 )
                         != SX0 )
                        | ~ ( in @ ( sK13_C @ SX1 @ SX0 ) @ SX1 ) )
                    | ~ ( ( ( sK13_C @ SX1 @ SX0 )
                          = SX0 )
                        | ( in @ ( sK13_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)],[254]) ).

thf(296,plain,
    ( ( ~ ( ~ ! [SX0: $i,SX1: $i] :
                ( ( disjoint @ SX0 @ SX1 )
                | ~ ( ~ ( in @ ( sK15_C @ SX1 @ SX0 ) @ SX0 )
                    | ~ ( in @ ( sK15_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)],[233]) ).

thf(297,plain,
    ( ( ! [SX0: $i] :
          ~ ( ~ ! [SX1: $i,SX2: $i] :
                  ( ~ ( ~ ( ~ ( in @ ( sK6_D @ SX2 @ SX1 @ SX0 ) @ SX0 )
                          | ( in @ ( sK6_D @ SX2 @ SX1 @ SX0 ) @ SX1 )
                          | ~ ( in @ ( sK6_D @ SX2 @ SX1 @ SX0 ) @ SX2 ) )
                      | ~ ~ ( ~ ( ( in @ ( sK6_D @ SX2 @ SX1 @ SX0 ) @ SX0 )
                                | ( in @ ( sK6_D @ SX2 @ SX1 @ SX0 ) @ SX2 ) )
                            | ~ ( ~ ( in @ ( sK6_D @ SX2 @ SX1 @ SX0 ) @ SX1 )
                                | ( in @ ( sK6_D @ SX2 @ SX1 @ SX0 ) @ SX2 ) ) ) )
                  | ( SX2
                    = ( set_difference @ SX0 @ SX1 ) ) )
            | ~ ! [SX1: $i,SX2: $i] :
                  ( ( SX2
                   != ( set_difference @ SX0 @ SX1 ) )
                  | ~ ( ~ ! [SX3: $i] :
                            ( ~ ( in @ SX3 @ SX0 )
                            | ( in @ SX3 @ SX1 )
                            | ( in @ SX3 @ SX2 ) )
                      | ~ ~ ( ~ ! [SX3: $i] :
                                  ( ~ ( in @ SX3 @ SX2 )
                                  | ( in @ SX3 @ SX0 ) )
                            | ~ ! [SX3: $i] :
                                  ( ~ ( in @ SX3 @ SX2 )
                                  | ~ ( in @ SX3 @ SX1 ) ) ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[261]) ).

thf(298,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)],[244]) ).

thf(299,plain,
    ( ( ~ ( ~ ! [SX0: $i,SX1: $i] :
                ( ~ ( ~ ( in @ ( sK8_C @ SX1 @ SX0 ) @ SX0 )
                    | ~ ~ ( in @ ( sK8_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)],[259]) ).

thf(300,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)],[216]) ).

thf(301,plain,
    ( ( ! [SX0: $i] :
          ~ ( ~ ! [SX1: $i,SX2: $i] :
                  ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK9_D @ SX2 @ SX1 @ SX0 ) @ SX2 )
                                | ~ ( in @ ( sK9_D @ SX2 @ SX1 @ SX0 ) @ SX0 ) )
                            | ~ ( ~ ( in @ ( sK9_D @ SX2 @ SX1 @ SX0 ) @ SX2 )
                                | ~ ( in @ ( sK9_D @ SX2 @ SX1 @ SX0 ) @ SX1 ) ) )
                      | ~ ( ( in @ ( sK9_D @ SX2 @ SX1 @ SX0 ) @ SX2 )
                          | ( in @ ( sK9_D @ SX2 @ SX1 @ SX0 ) @ SX0 )
                          | ( in @ ( sK9_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)],[258]) ).

thf(302,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)],[253]) ).

thf(303,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( ~ ( ~ ( in @ ( sK3_C @ SX1 @ SX0 ) @ SX0 )
                  | ~ ( in @ ( sK3_C @ SX1 @ SX0 ) @ SX1 ) )
              | ~ ( ( in @ ( sK3_C @ SX1 @ SX0 ) @ SX0 )
                  | ( in @ ( sK3_C @ SX1 @ SX0 ) @ SX1 ) ) )
          | ( SX0 = SX1 ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[283]) ).

thf(304,plain,
    ( ( ~ ( ~ ! [SX0: $i,SX1: $i] :
                ( ~ ( ~ ( ~ ( in @ ( sK11_C @ SX1 @ SX0 ) @ SX1 )
                        | ~ ( subset @ ( sK11_C @ SX1 @ SX0 ) @ SX0 ) )
                    | ~ ( ( in @ ( sK11_C @ SX1 @ SX0 ) @ SX1 )
                        | ( subset @ ( sK11_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)],[256]) ).

thf(305,plain,
    ( ( ! [SX0: $i] :
          ~ ( ~ ! [SX1: $i,SX2: $i] :
                  ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK10_D @ SX2 @ SX1 @ SX0 ) @ SX2 )
                                | ( ( sK10_D @ SX2 @ SX1 @ SX0 )
                                 != SX0 ) )
                            | ~ ( ~ ( in @ ( sK10_D @ SX2 @ SX1 @ SX0 ) @ SX2 )
                                | ( ( sK10_D @ SX2 @ SX1 @ SX0 )
                                 != SX1 ) ) )
                      | ~ ( ( in @ ( sK10_D @ SX2 @ SX1 @ SX0 ) @ SX2 )
                          | ( ( sK10_D @ SX2 @ SX1 @ SX0 )
                            = SX0 )
                          | ( ( sK10_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)],[257]) ).

thf(306,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)],[217]) ).

thf(307,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)],[262]) ).

thf(308,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)],[231]) ).

thf(309,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)],[219]) ).

thf(310,plain,
    ! [SV1: $i] :
      ( ( ( ( singleton @ SV1 )
         != empty_set ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[213]) ).

thf(311,plain,
    ! [SV2: $i] :
      ( ( ! [SY153: $i] :
            ( ~ ( in @ SV2 @ SY153 )
            | ( ( set_union2 @ ( singleton @ SV2 ) @ SY153 )
              = SY153 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[214]) ).

thf(312,plain,
    ! [SV3: $i] :
      ( ( ! [SY154: $i] :
            ( ~ ( disjoint @ ( singleton @ SV3 ) @ SY154 )
            | ~ ( in @ SV3 @ SY154 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[215]) ).

thf(313,plain,
    ! [SV4: $i] :
      ( ( ! [SY155: $i] :
            ( ~ ( subset @ SV4 @ SY155 )
            | ! [SY156: $i] :
                ( ( in @ SY156 @ SV4 )
                | ( subset @ SV4 @ ( set_difference @ SY155 @ ( singleton @ SY156 ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[218]) ).

thf(314,plain,
    ! [SV5: $i] :
      ( ( ! [SY157: $i,SY158: $i,SY159: $i] :
            ( ( SV5 = SY159 )
            | ( SV5 = SY158 )
            | ( ( unordered_pair @ SV5 @ SY157 )
             != ( unordered_pair @ SY158 @ SY159 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[220]) ).

thf(315,plain,
    ! [SV6: $i] :
      ( ( ! [SY160: $i] :
            ( ~ ( subset @ SV6 @ SY160 )
            | ( ( set_union2 @ SV6 @ SY160 )
              = SY160 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[221]) ).

thf(316,plain,
    ! [SV7: $i] :
      ( ( ! [SY161: $i] : ( subset @ ( set_intersection2 @ SV7 @ SY161 ) @ SV7 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[222]) ).

thf(317,plain,
    ! [SV8: $i] :
      ( ( ! [SY162: $i,SY163: $i] :
            ( ~ ( subset @ SV8 @ SY162 )
            | ~ ( subset @ SV8 @ SY163 )
            | ( subset @ SV8 @ ( set_intersection2 @ SY162 @ SY163 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[223]) ).

thf(318,plain,
    ! [SV9: $i] :
      ( ( ! [SY164: $i,SY165: $i] :
            ( ~ ( subset @ SV9 @ SY164 )
            | ~ ( subset @ SY164 @ SY165 )
            | ( subset @ SV9 @ SY165 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[224]) ).

thf(319,plain,
    ! [SV10: $i] :
      ( ( ! [SY166: $i] :
            ( ~ ( subset @ SV10 @ SY166 )
            | ! [SY167: $i] : ( subset @ ( set_intersection2 @ SV10 @ SY167 ) @ ( set_intersection2 @ SY166 @ SY167 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[226]) ).

thf(320,plain,
    ! [SV11: $i] :
      ( ( ! [SY168: $i] :
            ( ~ ( subset @ SV11 @ SY168 )
            | ( ( set_intersection2 @ SV11 @ SY168 )
              = SV11 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[227]) ).

thf(321,plain,
    ! [SV12: $i] :
      ( ( subset @ empty_set @ SV12 )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[228]) ).

thf(322,plain,
    ! [SV13: $i] :
      ( ( ! [SY169: $i] :
            ( ~ ( subset @ SV13 @ SY169 )
            | ! [SY170: $i] : ( subset @ ( set_difference @ SV13 @ SY170 ) @ ( set_difference @ SY169 @ SY170 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[229]) ).

thf(323,plain,
    ! [SV14: $i] :
      ( ( ! [SY171: $i] : ( subset @ ( set_difference @ SV14 @ SY171 ) @ SV14 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[230]) ).

thf(324,plain,
    ! [SV15: $i] :
      ( ( ! [SY172: $i] :
            ( ( set_union2 @ SV15 @ ( set_difference @ SY172 @ SV15 ) )
            = ( set_union2 @ SV15 @ SY172 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[232]) ).

thf(325,plain,
    ! [SV16: $i] :
      ( ( ~ ( subset @ SV16 @ empty_set )
        | ( SV16 = empty_set ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[234]) ).

thf(326,plain,
    ! [SV17: $i] :
      ( ( ! [SY173: $i] :
            ( ( set_difference @ ( set_union2 @ SV17 @ SY173 ) @ SY173 )
            = ( set_difference @ SV17 @ SY173 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[235]) ).

thf(327,plain,
    ! [SV18: $i] :
      ( ( ! [SY174: $i] :
            ( ~ ( subset @ SV18 @ SY174 )
            | ( SY174
              = ( set_union2 @ SV18 @ ( set_difference @ SY174 @ SV18 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[236]) ).

thf(328,plain,
    ! [SV19: $i] :
      ( ( ! [SY175: $i] :
            ( ( set_difference @ SV19 @ ( set_difference @ SV19 @ SY175 ) )
            = ( set_intersection2 @ SV19 @ SY175 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[237]) ).

thf(329,plain,
    ! [SV20: $i] :
      ( ( ! [SY176: $i] :
            ( ~ ( proper_subset @ SY176 @ SV20 )
            | ~ ( subset @ SV20 @ SY176 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[239]) ).

thf(330,plain,
    ! [SV21: $i] :
      ( ( ! [SY177: $i,SY178: $i] :
            ( ~ ( disjoint @ SY177 @ SY178 )
            | ~ ( subset @ SV21 @ SY177 )
            | ( disjoint @ SV21 @ SY178 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[240]) ).

thf(331,plain,
    ! [SV22: $i] :
      ( ( ( unordered_pair @ SV22 @ SV22 )
        = ( singleton @ SV22 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[241]) ).

thf(332,plain,
    ! [SV23: $i] :
      ( ( ! [SY179: $i] :
            ( ~ ( subset @ ( singleton @ SV23 ) @ ( singleton @ SY179 ) )
            | ( SV23 = SY179 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[242]) ).

thf(333,plain,
    ! [SV24: $i] :
      ( ( ! [SY180: $i] : ( subset @ SV24 @ ( set_union2 @ SV24 @ SY180 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[243]) ).

thf(334,plain,
    ! [SV25: $i] :
      ( ( ! [SY181: $i,SY182: $i] :
            ( ~ ( subset @ SV25 @ SY181 )
            | ~ ( subset @ SY182 @ SY181 )
            | ( subset @ ( set_union2 @ SV25 @ SY182 ) @ SY181 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[245]) ).

thf(335,plain,
    ! [SV26: $i] :
      ( ( ! [SY183: $i] :
            ( ! [SY184: $i] :
                ( ( singleton @ SV26 )
               != ( unordered_pair @ SY183 @ SY184 ) )
            | ( SV26 = SY183 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[246]) ).

thf(336,plain,
    ! [SV27: $i] :
      ( ( ! [SY185: $i,SY186: $i] :
            ( ( ( singleton @ SV27 )
             != ( unordered_pair @ SY185 @ SY186 ) )
            | ( SY185 = SY186 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[247]) ).

thf(337,plain,
    ! [SV28: $i] :
      ( ( ! [SY187: $i] :
            ( ~ ( in @ SV28 @ SY187 )
            | ~ ( in @ SY187 @ SV28 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[248]) ).

thf(338,plain,
    ! [SV29: $i] :
      ( ( ! [SY188: $i] :
            ( ~ ( proper_subset @ SV29 @ SY188 )
            | ~ ( proper_subset @ SY188 @ SV29 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[249]) ).

thf(339,plain,
    ! [SV30: $i] :
      ( ( ! [SY189: $i] :
            ( ( unordered_pair @ SV30 @ SY189 )
            = ( unordered_pair @ SY189 @ SV30 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[250]) ).

thf(340,plain,
    ! [SV31: $i] :
      ( ( ! [SY190: $i] :
            ( ( set_union2 @ SV31 @ SY190 )
            = ( set_union2 @ SY190 @ SV31 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[251]) ).

thf(341,plain,
    ! [SV32: $i] :
      ( ( ! [SY191: $i] :
            ( ( set_intersection2 @ SV32 @ SY191 )
            = ( set_intersection2 @ SY191 @ SV32 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[252]) ).

thf(342,plain,
    ! [SV33: $i] :
      ( ( ( empty @ SV33 )
        | ! [SY192: $i] :
            ~ ( empty @ ( set_union2 @ SV33 @ SY192 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[272]) ).

thf(343,plain,
    ! [SV34: $i] :
      ( ( ( empty @ SV34 )
        | ! [SY193: $i] :
            ~ ( empty @ ( set_union2 @ SY193 @ SV34 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[273]) ).

thf(344,plain,
    ! [SV35: $i] :
      ( ( ( set_union2 @ SV35 @ SV35 )
        = SV35 )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[274]) ).

thf(345,plain,
    ! [SV36: $i] :
      ( ( ( set_intersection2 @ SV36 @ SV36 )
        = SV36 )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[275]) ).

thf(346,plain,
    ! [SV37: $i] :
      ( ( ~ ( proper_subset @ SV37 @ SV37 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[276]) ).

thf(347,plain,
    ( ( empty @ sK4_A )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[278]) ).

thf(348,plain,
    ! [SV38: $i] :
      ( ( subset @ SV38 @ SV38 )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[279]) ).

thf(349,plain,
    ! [SV39: $i] :
      ( ( ! [SY194: $i] :
            ( ~ ( disjoint @ SV39 @ SY194 )
            | ( disjoint @ SY194 @ SV39 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[280]) ).

thf(350,plain,
    ! [SV40: $i] :
      ( ( ( set_union2 @ SV40 @ empty_set )
        = SV40 )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[281]) ).

thf(351,plain,
    ! [SV41: $i] :
      ( ( ( set_intersection2 @ SV41 @ empty_set )
        = empty_set )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[282]) ).

thf(352,plain,
    ! [SV42: $i] :
      ( ( ( set_difference @ SV42 @ empty_set )
        = SV42 )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[284]) ).

thf(353,plain,
    ! [SV43: $i] :
      ( ( ( set_difference @ empty_set @ SV43 )
        = empty_set )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[285]) ).

thf(354,plain,
    ! [SV44: $i] :
      ( ( ~ ( empty @ SV44 )
        | ( SV44 = empty_set ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[286]) ).

thf(355,plain,
    ! [SV45: $i] :
      ( ( ! [SY195: $i] :
            ( ~ ( empty @ SY195 )
            | ~ ( in @ SV45 @ SY195 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[287]) ).

thf(356,plain,
    ! [SV46: $i] :
      ( ( ! [SY196: $i] :
            ( ( SV46 = SY196 )
            | ~ ( empty @ SV46 )
            | ~ ( empty @ SY196 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[288]) ).

thf(357,plain,
    ( ( in @ sK1_A @ sK2_SY152 )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[289]) ).

thf(358,plain,
    ( ( disjoint @ ( singleton @ sK1_A ) @ sK2_SY152 )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[290]) ).

thf(359,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( disjoint @ SX0 @ SX1 )
            | ( in @ ( sK14_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)],[291]) ).

thf(360,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)],[292]) ).

thf(361,plain,
    ! [SV47: $i] :
      ( ( ~ ( ~ ! [SY197: $i,SY198: $i] :
                  ( ~ ( ~ ( ~ ( in @ ( sK7_D @ SY198 @ SY197 @ SV47 ) @ SV47 )
                          | ~ ( in @ ( sK7_D @ SY198 @ SY197 @ SV47 ) @ SY197 )
                          | ~ ( in @ ( sK7_D @ SY198 @ SY197 @ SV47 ) @ SY198 ) )
                      | ~ ~ ( ~ ( ( in @ ( sK7_D @ SY198 @ SY197 @ SV47 ) @ SV47 )
                                | ( in @ ( sK7_D @ SY198 @ SY197 @ SV47 ) @ SY198 ) )
                            | ~ ( ( in @ ( sK7_D @ SY198 @ SY197 @ SV47 ) @ SY197 )
                                | ( in @ ( sK7_D @ SY198 @ SY197 @ SV47 ) @ SY198 ) ) ) )
                  | ( SY198
                    = ( set_intersection2 @ SV47 @ SY197 ) ) )
            | ~ ! [SY199: $i,SY200: $i] :
                  ( ( SY200
                   != ( set_intersection2 @ SV47 @ SY199 ) )
                  | ~ ( ~ ! [SY201: $i] :
                            ( ~ ( in @ SY201 @ SV47 )
                            | ~ ( in @ SY201 @ SY199 )
                            | ( in @ SY201 @ SY200 ) )
                      | ~ ~ ( ~ ! [SY202: $i] :
                                  ( ~ ( in @ SY202 @ SY200 )
                                  | ( in @ SY202 @ SV47 ) )
                            | ~ ! [SX3: $i] :
                                  ( ~ ( in @ SX3 @ SY200 )
                                  | ( in @ SX3 @ SY199 ) ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[293]) ).

thf(362,plain,
    ( ( ~ ! [SX0: $i] :
            ( ( in @ ( sK12_B @ SX0 ) @ SX0 )
            | ( SX0 = empty_set ) )
      | ~ ! [SX0: $i] :
            ( ( SX0 != empty_set )
            | ! [SX1: $i] :
                ~ ( in @ SX1 @ SX0 ) ) )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[294]) ).

thf(363,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( ~ ( ( ( sK13_C @ SX1 @ SX0 )
                     != SX0 )
                    | ~ ( in @ ( sK13_C @ SX1 @ SX0 ) @ SX1 ) )
                | ~ ( ( ( sK13_C @ SX1 @ SX0 )
                      = SX0 )
                    | ( in @ ( sK13_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)],[295]) ).

thf(364,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( disjoint @ SX0 @ SX1 )
            | ~ ( ~ ( in @ ( sK15_C @ SX1 @ SX0 ) @ SX0 )
                | ~ ( in @ ( sK15_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)],[296]) ).

thf(365,plain,
    ! [SV48: $i] :
      ( ( ~ ( ~ ! [SY204: $i,SY205: $i] :
                  ( ~ ( ~ ( ~ ( in @ ( sK6_D @ SY205 @ SY204 @ SV48 ) @ SV48 )
                          | ( in @ ( sK6_D @ SY205 @ SY204 @ SV48 ) @ SY204 )
                          | ~ ( in @ ( sK6_D @ SY205 @ SY204 @ SV48 ) @ SY205 ) )
                      | ~ ~ ( ~ ( ( in @ ( sK6_D @ SY205 @ SY204 @ SV48 ) @ SV48 )
                                | ( in @ ( sK6_D @ SY205 @ SY204 @ SV48 ) @ SY205 ) )
                            | ~ ( ~ ( in @ ( sK6_D @ SY205 @ SY204 @ SV48 ) @ SY204 )
                                | ( in @ ( sK6_D @ SY205 @ SY204 @ SV48 ) @ SY205 ) ) ) )
                  | ( SY205
                    = ( set_difference @ SV48 @ SY204 ) ) )
            | ~ ! [SY206: $i,SY207: $i] :
                  ( ( SY207
                   != ( set_difference @ SV48 @ SY206 ) )
                  | ~ ( ~ ! [SY208: $i] :
                            ( ~ ( in @ SY208 @ SV48 )
                            | ( in @ SY208 @ SY206 )
                            | ( in @ SY208 @ SY207 ) )
                      | ~ ~ ( ~ ! [SY209: $i] :
                                  ( ~ ( in @ SY209 @ SY207 )
                                  | ( in @ SY209 @ SV48 ) )
                            | ~ ! [SX3: $i] :
                                  ( ~ ( in @ SX3 @ SY207 )
                                  | ~ ( in @ SX3 @ SY206 ) ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[297]) ).

thf(366,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)],[298]) ).

thf(367,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( ~ ( in @ ( sK8_C @ SX1 @ SX0 ) @ SX0 )
                | ~ ~ ( in @ ( sK8_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)],[299]) ).

thf(368,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)],[300]) ).

thf(369,plain,
    ! [SV49: $i] :
      ( ( ~ ( ~ ! [SY211: $i,SY212: $i] :
                  ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK9_D @ SY212 @ SY211 @ SV49 ) @ SY212 )
                                | ~ ( in @ ( sK9_D @ SY212 @ SY211 @ SV49 ) @ SV49 ) )
                            | ~ ( ~ ( in @ ( sK9_D @ SY212 @ SY211 @ SV49 ) @ SY212 )
                                | ~ ( in @ ( sK9_D @ SY212 @ SY211 @ SV49 ) @ SY211 ) ) )
                      | ~ ( ( in @ ( sK9_D @ SY212 @ SY211 @ SV49 ) @ SY212 )
                          | ( in @ ( sK9_D @ SY212 @ SY211 @ SV49 ) @ SV49 )
                          | ( in @ ( sK9_D @ SY212 @ SY211 @ SV49 ) @ SY211 ) ) )
                  | ( SY212
                    = ( set_union2 @ SV49 @ SY211 ) ) )
            | ~ ! [SY213: $i,SY214: $i] :
                  ( ( SY214
                   != ( set_union2 @ SV49 @ SY213 ) )
                  | ~ ( ~ ! [SY215: $i] :
                            ( ~ ( in @ SY215 @ SY214 )
                            | ( in @ SY215 @ SV49 )
                            | ( in @ SY215 @ SY213 ) )
                      | ~ ~ ( ~ ! [SY216: $i] :
                                  ( ~ ( in @ SY216 @ SV49 )
                                  | ( in @ SY216 @ SY214 ) )
                            | ~ ! [SX3: $i] :
                                  ( ~ ( in @ SX3 @ SY213 )
                                  | ( in @ SX3 @ SY214 ) ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[301]) ).

thf(370,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)],[302]) ).

thf(371,plain,
    ! [SV50: $i] :
      ( ( ! [SY218: $i] :
            ( ~ ( ~ ( ~ ( in @ ( sK3_C @ SY218 @ SV50 ) @ SV50 )
                    | ~ ( in @ ( sK3_C @ SY218 @ SV50 ) @ SY218 ) )
                | ~ ( ( in @ ( sK3_C @ SY218 @ SV50 ) @ SV50 )
                    | ( in @ ( sK3_C @ SY218 @ SV50 ) @ SY218 ) ) )
            | ( SV50 = SY218 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[303]) ).

thf(372,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( ~ ( ~ ( in @ ( sK11_C @ SX1 @ SX0 ) @ SX1 )
                    | ~ ( subset @ ( sK11_C @ SX1 @ SX0 ) @ SX0 ) )
                | ~ ( ( in @ ( sK11_C @ SX1 @ SX0 ) @ SX1 )
                    | ( subset @ ( sK11_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)],[304]) ).

thf(373,plain,
    ! [SV51: $i] :
      ( ( ~ ( ~ ! [SY219: $i,SY220: $i] :
                  ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK10_D @ SY220 @ SY219 @ SV51 ) @ SY220 )
                                | ( ( sK10_D @ SY220 @ SY219 @ SV51 )
                                 != SV51 ) )
                            | ~ ( ~ ( in @ ( sK10_D @ SY220 @ SY219 @ SV51 ) @ SY220 )
                                | ( ( sK10_D @ SY220 @ SY219 @ SV51 )
                                 != SY219 ) ) )
                      | ~ ( ( in @ ( sK10_D @ SY220 @ SY219 @ SV51 ) @ SY220 )
                          | ( ( sK10_D @ SY220 @ SY219 @ SV51 )
                            = SV51 )
                          | ( ( sK10_D @ SY220 @ SY219 @ SV51 )
                            = SY219 ) ) )
                  | ( SY220
                    = ( unordered_pair @ SV51 @ SY219 ) ) )
            | ~ ! [SY221: $i,SY222: $i] :
                  ( ( SY222
                   != ( unordered_pair @ SV51 @ SY221 ) )
                  | ~ ( ~ ! [SY223: $i] :
                            ( ~ ( in @ SY223 @ SY222 )
                            | ( SY223 = SV51 )
                            | ( SY223 = SY221 ) )
                      | ~ ~ ( ~ ! [SY224: $i] :
                                  ( ( SY224 != SV51 )
                                  | ( in @ SY224 @ SY222 ) )
                            | ~ ! [SX3: $i] :
                                  ( ( SX3 != SY221 )
                                  | ( in @ SX3 @ SY222 ) ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[305]) ).

thf(374,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)],[306]) ).

thf(375,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)],[307]) ).

thf(376,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)],[308]) ).

thf(377,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)],[309]) ).

thf(378,plain,
    ! [SV1: $i] :
      ( ( ( singleton @ SV1 )
        = empty_set )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[310]) ).

thf(379,plain,
    ! [SV52: $i,SV2: $i] :
      ( ( ~ ( in @ SV2 @ SV52 )
        | ( ( set_union2 @ ( singleton @ SV2 ) @ SV52 )
          = SV52 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[311]) ).

thf(380,plain,
    ! [SV53: $i,SV3: $i] :
      ( ( ~ ( disjoint @ ( singleton @ SV3 ) @ SV53 )
        | ~ ( in @ SV3 @ SV53 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[312]) ).

thf(381,plain,
    ! [SV54: $i,SV4: $i] :
      ( ( ~ ( subset @ SV4 @ SV54 )
        | ! [SY226: $i] :
            ( ( in @ SY226 @ SV4 )
            | ( subset @ SV4 @ ( set_difference @ SV54 @ ( singleton @ SY226 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[313]) ).

thf(382,plain,
    ! [SV55: $i,SV5: $i] :
      ( ( ! [SY227: $i,SY228: $i] :
            ( ( SV5 = SY228 )
            | ( SV5 = SY227 )
            | ( ( unordered_pair @ SV5 @ SV55 )
             != ( unordered_pair @ SY227 @ SY228 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[314]) ).

thf(383,plain,
    ! [SV56: $i,SV6: $i] :
      ( ( ~ ( subset @ SV6 @ SV56 )
        | ( ( set_union2 @ SV6 @ SV56 )
          = SV56 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[315]) ).

thf(384,plain,
    ! [SV57: $i,SV7: $i] :
      ( ( subset @ ( set_intersection2 @ SV7 @ SV57 ) @ SV7 )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[316]) ).

thf(385,plain,
    ! [SV58: $i,SV8: $i] :
      ( ( ! [SY229: $i] :
            ( ~ ( subset @ SV8 @ SV58 )
            | ~ ( subset @ SV8 @ SY229 )
            | ( subset @ SV8 @ ( set_intersection2 @ SV58 @ SY229 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[317]) ).

thf(386,plain,
    ! [SV59: $i,SV9: $i] :
      ( ( ! [SY230: $i] :
            ( ~ ( subset @ SV9 @ SV59 )
            | ~ ( subset @ SV59 @ SY230 )
            | ( subset @ SV9 @ SY230 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[318]) ).

thf(387,plain,
    ! [SV60: $i,SV10: $i] :
      ( ( ~ ( subset @ SV10 @ SV60 )
        | ! [SY231: $i] : ( subset @ ( set_intersection2 @ SV10 @ SY231 ) @ ( set_intersection2 @ SV60 @ SY231 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[319]) ).

thf(388,plain,
    ! [SV61: $i,SV11: $i] :
      ( ( ~ ( subset @ SV11 @ SV61 )
        | ( ( set_intersection2 @ SV11 @ SV61 )
          = SV11 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[320]) ).

thf(389,plain,
    ! [SV62: $i,SV13: $i] :
      ( ( ~ ( subset @ SV13 @ SV62 )
        | ! [SY232: $i] : ( subset @ ( set_difference @ SV13 @ SY232 ) @ ( set_difference @ SV62 @ SY232 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[322]) ).

thf(390,plain,
    ! [SV63: $i,SV14: $i] :
      ( ( subset @ ( set_difference @ SV14 @ SV63 ) @ SV14 )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[323]) ).

thf(391,plain,
    ! [SV64: $i,SV15: $i] :
      ( ( ( set_union2 @ SV15 @ ( set_difference @ SV64 @ SV15 ) )
        = ( set_union2 @ SV15 @ SV64 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[324]) ).

thf(392,plain,
    ! [SV16: $i] :
      ( ( ( ~ ( subset @ SV16 @ empty_set ) )
        = $true )
      | ( ( SV16 = empty_set )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[325]) ).

thf(393,plain,
    ! [SV65: $i,SV17: $i] :
      ( ( ( set_difference @ ( set_union2 @ SV17 @ SV65 ) @ SV65 )
        = ( set_difference @ SV17 @ SV65 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[326]) ).

thf(394,plain,
    ! [SV66: $i,SV18: $i] :
      ( ( ~ ( subset @ SV18 @ SV66 )
        | ( SV66
          = ( set_union2 @ SV18 @ ( set_difference @ SV66 @ SV18 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[327]) ).

thf(395,plain,
    ! [SV67: $i,SV19: $i] :
      ( ( ( set_difference @ SV19 @ ( set_difference @ SV19 @ SV67 ) )
        = ( set_intersection2 @ SV19 @ SV67 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[328]) ).

thf(396,plain,
    ! [SV20: $i,SV68: $i] :
      ( ( ~ ( proper_subset @ SV68 @ SV20 )
        | ~ ( subset @ SV20 @ SV68 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[329]) ).

thf(397,plain,
    ! [SV21: $i,SV69: $i] :
      ( ( ! [SY233: $i] :
            ( ~ ( disjoint @ SV69 @ SY233 )
            | ~ ( subset @ SV21 @ SV69 )
            | ( disjoint @ SV21 @ SY233 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[330]) ).

thf(398,plain,
    ! [SV70: $i,SV23: $i] :
      ( ( ~ ( subset @ ( singleton @ SV23 ) @ ( singleton @ SV70 ) )
        | ( SV23 = SV70 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[332]) ).

thf(399,plain,
    ! [SV71: $i,SV24: $i] :
      ( ( subset @ SV24 @ ( set_union2 @ SV24 @ SV71 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[333]) ).

thf(400,plain,
    ! [SV72: $i,SV25: $i] :
      ( ( ! [SY234: $i] :
            ( ~ ( subset @ SV25 @ SV72 )
            | ~ ( subset @ SY234 @ SV72 )
            | ( subset @ ( set_union2 @ SV25 @ SY234 ) @ SV72 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[334]) ).

thf(401,plain,
    ! [SV73: $i,SV26: $i] :
      ( ( ! [SY235: $i] :
            ( ( singleton @ SV26 )
           != ( unordered_pair @ SV73 @ SY235 ) )
        | ( SV26 = SV73 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[335]) ).

thf(402,plain,
    ! [SV74: $i,SV27: $i] :
      ( ( ! [SY236: $i] :
            ( ( ( singleton @ SV27 )
             != ( unordered_pair @ SV74 @ SY236 ) )
            | ( SV74 = SY236 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[336]) ).

thf(403,plain,
    ! [SV75: $i,SV28: $i] :
      ( ( ~ ( in @ SV28 @ SV75 )
        | ~ ( in @ SV75 @ SV28 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[337]) ).

thf(404,plain,
    ! [SV76: $i,SV29: $i] :
      ( ( ~ ( proper_subset @ SV29 @ SV76 )
        | ~ ( proper_subset @ SV76 @ SV29 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[338]) ).

thf(405,plain,
    ! [SV77: $i,SV30: $i] :
      ( ( ( unordered_pair @ SV30 @ SV77 )
        = ( unordered_pair @ SV77 @ SV30 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[339]) ).

thf(406,plain,
    ! [SV78: $i,SV31: $i] :
      ( ( ( set_union2 @ SV31 @ SV78 )
        = ( set_union2 @ SV78 @ SV31 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[340]) ).

thf(407,plain,
    ! [SV79: $i,SV32: $i] :
      ( ( ( set_intersection2 @ SV32 @ SV79 )
        = ( set_intersection2 @ SV79 @ SV32 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[341]) ).

thf(408,plain,
    ! [SV33: $i] :
      ( ( ( empty @ SV33 )
        = $true )
      | ( ( ! [SY192: $i] :
              ~ ( empty @ ( set_union2 @ SV33 @ SY192 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[342]) ).

thf(409,plain,
    ! [SV34: $i] :
      ( ( ( empty @ SV34 )
        = $true )
      | ( ( ! [SY193: $i] :
              ~ ( empty @ ( set_union2 @ SY193 @ SV34 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[343]) ).

thf(410,plain,
    ! [SV37: $i] :
      ( ( proper_subset @ SV37 @ SV37 )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[346]) ).

thf(411,plain,
    ! [SV80: $i,SV39: $i] :
      ( ( ~ ( disjoint @ SV39 @ SV80 )
        | ( disjoint @ SV80 @ SV39 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[349]) ).

thf(412,plain,
    ! [SV44: $i] :
      ( ( ( ~ ( empty @ SV44 ) )
        = $true )
      | ( ( SV44 = empty_set )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[354]) ).

thf(413,plain,
    ! [SV45: $i,SV81: $i] :
      ( ( ~ ( empty @ SV81 )
        | ~ ( in @ SV45 @ SV81 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[355]) ).

thf(414,plain,
    ! [SV82: $i,SV46: $i] :
      ( ( ( SV46 = SV82 )
        | ~ ( empty @ SV46 )
        | ~ ( empty @ SV82 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[356]) ).

thf(415,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( disjoint @ SX0 @ SX1 )
            | ( in @ ( sK14_C @ SX1 @ SX0 ) @ ( set_intersection2 @ SX0 @ SX1 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[359]) ).

thf(416,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ! [SX2: $i] :
                ~ ( in @ SX2 @ ( set_intersection2 @ SX0 @ SX1 ) )
            | ~ ( disjoint @ SX0 @ SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[359]) ).

thf(417,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( SX0 = SX1 )
            | ~ ( subset @ SX0 @ SX1 )
            | ( proper_subset @ SX0 @ SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[360]) ).

thf(418,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)],[360]) ).

thf(419,plain,
    ! [SV47: $i] :
      ( ( ~ ! [SY197: $i,SY198: $i] :
              ( ~ ( ~ ( ~ ( in @ ( sK7_D @ SY198 @ SY197 @ SV47 ) @ SV47 )
                      | ~ ( in @ ( sK7_D @ SY198 @ SY197 @ SV47 ) @ SY197 )
                      | ~ ( in @ ( sK7_D @ SY198 @ SY197 @ SV47 ) @ SY198 ) )
                  | ~ ~ ( ~ ( ( in @ ( sK7_D @ SY198 @ SY197 @ SV47 ) @ SV47 )
                            | ( in @ ( sK7_D @ SY198 @ SY197 @ SV47 ) @ SY198 ) )
                        | ~ ( ( in @ ( sK7_D @ SY198 @ SY197 @ SV47 ) @ SY197 )
                            | ( in @ ( sK7_D @ SY198 @ SY197 @ SV47 ) @ SY198 ) ) ) )
              | ( SY198
                = ( set_intersection2 @ SV47 @ SY197 ) ) )
        | ~ ! [SY199: $i,SY200: $i] :
              ( ( SY200
               != ( set_intersection2 @ SV47 @ SY199 ) )
              | ~ ( ~ ! [SY201: $i] :
                        ( ~ ( in @ SY201 @ SV47 )
                        | ~ ( in @ SY201 @ SY199 )
                        | ( in @ SY201 @ SY200 ) )
                  | ~ ~ ( ~ ! [SY202: $i] :
                              ( ~ ( in @ SY202 @ SY200 )
                              | ( in @ SY202 @ SV47 ) )
                        | ~ ! [SX3: $i] :
                              ( ~ ( in @ SX3 @ SY200 )
                              | ( in @ SX3 @ SY199 ) ) ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[361]) ).

thf(420,plain,
    ( ( ~ ! [SX0: $i] :
            ( ( in @ ( sK12_B @ SX0 ) @ SX0 )
            | ( SX0 = empty_set ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[362]) ).

thf(421,plain,
    ( ( ~ ! [SX0: $i] :
            ( ( SX0 != empty_set )
            | ! [SX1: $i] :
                ~ ( in @ SX1 @ SX0 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[362]) ).

thf(422,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( ~ ( ( ( sK13_C @ SX1 @ SX0 )
                     != SX0 )
                    | ~ ( in @ ( sK13_C @ SX1 @ SX0 ) @ SX1 ) )
                | ~ ( ( ( sK13_C @ SX1 @ SX0 )
                      = SX0 )
                    | ( in @ ( sK13_C @ SX1 @ SX0 ) @ SX1 ) ) )
            | ( SX1
              = ( singleton @ SX0 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[363]) ).

thf(423,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)],[363]) ).

thf(424,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( disjoint @ SX0 @ SX1 )
            | ~ ( ~ ( in @ ( sK15_C @ SX1 @ SX0 ) @ SX0 )
                | ~ ( in @ ( sK15_C @ SX1 @ SX0 ) @ SX1 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[364]) ).

thf(425,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ! [SX2: $i] :
                ( ~ ( in @ SX2 @ SX0 )
                | ~ ( in @ SX2 @ SX1 ) )
            | ~ ( disjoint @ SX0 @ SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[364]) ).

thf(426,plain,
    ! [SV48: $i] :
      ( ( ~ ! [SY204: $i,SY205: $i] :
              ( ~ ( ~ ( ~ ( in @ ( sK6_D @ SY205 @ SY204 @ SV48 ) @ SV48 )
                      | ( in @ ( sK6_D @ SY205 @ SY204 @ SV48 ) @ SY204 )
                      | ~ ( in @ ( sK6_D @ SY205 @ SY204 @ SV48 ) @ SY205 ) )
                  | ~ ~ ( ~ ( ( in @ ( sK6_D @ SY205 @ SY204 @ SV48 ) @ SV48 )
                            | ( in @ ( sK6_D @ SY205 @ SY204 @ SV48 ) @ SY205 ) )
                        | ~ ( ~ ( in @ ( sK6_D @ SY205 @ SY204 @ SV48 ) @ SY204 )
                            | ( in @ ( sK6_D @ SY205 @ SY204 @ SV48 ) @ SY205 ) ) ) )
              | ( SY205
                = ( set_difference @ SV48 @ SY204 ) ) )
        | ~ ! [SY206: $i,SY207: $i] :
              ( ( SY207
               != ( set_difference @ SV48 @ SY206 ) )
              | ~ ( ~ ! [SY208: $i] :
                        ( ~ ( in @ SY208 @ SV48 )
                        | ( in @ SY208 @ SY206 )
                        | ( in @ SY208 @ SY207 ) )
                  | ~ ~ ( ~ ! [SY209: $i] :
                              ( ~ ( in @ SY209 @ SY207 )
                              | ( in @ SY209 @ SV48 ) )
                        | ~ ! [SX3: $i] :
                              ( ~ ( in @ SX3 @ SY207 )
                              | ~ ( in @ SX3 @ SY206 ) ) ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[365]) ).

thf(427,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( ( set_difference @ SX0 @ SX1 )
             != SX0 )
            | ( disjoint @ SX0 @ SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[366]) ).

thf(428,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( disjoint @ SX0 @ SX1 )
            | ( ( set_difference @ SX0 @ SX1 )
              = SX0 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[366]) ).

thf(429,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( ~ ( in @ ( sK8_C @ SX1 @ SX0 ) @ SX0 )
                | ~ ~ ( in @ ( sK8_C @ SX1 @ SX0 ) @ SX1 ) )
            | ( subset @ SX0 @ SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[367]) ).

thf(430,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( subset @ SX0 @ SX1 )
            | ! [SX2: $i] :
                ( ~ ( in @ SX2 @ SX0 )
                | ( in @ SX2 @ SX1 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[367]) ).

thf(431,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( in @ SX0 @ SX1 )
            | ( subset @ ( singleton @ SX0 ) @ SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[368]) ).

thf(432,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( subset @ ( singleton @ SX0 ) @ SX1 )
            | ( in @ SX0 @ SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[368]) ).

thf(433,plain,
    ! [SV49: $i] :
      ( ( ~ ! [SY211: $i,SY212: $i] :
              ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK9_D @ SY212 @ SY211 @ SV49 ) @ SY212 )
                            | ~ ( in @ ( sK9_D @ SY212 @ SY211 @ SV49 ) @ SV49 ) )
                        | ~ ( ~ ( in @ ( sK9_D @ SY212 @ SY211 @ SV49 ) @ SY212 )
                            | ~ ( in @ ( sK9_D @ SY212 @ SY211 @ SV49 ) @ SY211 ) ) )
                  | ~ ( ( in @ ( sK9_D @ SY212 @ SY211 @ SV49 ) @ SY212 )
                      | ( in @ ( sK9_D @ SY212 @ SY211 @ SV49 ) @ SV49 )
                      | ( in @ ( sK9_D @ SY212 @ SY211 @ SV49 ) @ SY211 ) ) )
              | ( SY212
                = ( set_union2 @ SV49 @ SY211 ) ) )
        | ~ ! [SY213: $i,SY214: $i] :
              ( ( SY214
               != ( set_union2 @ SV49 @ SY213 ) )
              | ~ ( ~ ! [SY215: $i] :
                        ( ~ ( in @ SY215 @ SY214 )
                        | ( in @ SY215 @ SV49 )
                        | ( in @ SY215 @ SY213 ) )
                  | ~ ~ ( ~ ! [SY216: $i] :
                              ( ~ ( in @ SY216 @ SV49 )
                              | ( in @ SY216 @ SY214 ) )
                        | ~ ! [SX3: $i] :
                              ( ~ ( in @ SX3 @ SY213 )
                              | ( in @ SX3 @ SY214 ) ) ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[369]) ).

thf(434,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( subset @ SX0 @ SX1 )
            | ~ ( subset @ SX1 @ SX0 )
            | ( SX0 = SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[370]) ).

thf(435,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)],[370]) ).

thf(436,plain,
    ! [SV50: $i,SV83: $i] :
      ( ( ~ ( ~ ( ~ ( in @ ( sK3_C @ SV83 @ SV50 ) @ SV50 )
                | ~ ( in @ ( sK3_C @ SV83 @ SV50 ) @ SV83 ) )
            | ~ ( ( in @ ( sK3_C @ SV83 @ SV50 ) @ SV50 )
                | ( in @ ( sK3_C @ SV83 @ SV50 ) @ SV83 ) ) )
        | ( SV50 = SV83 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[371]) ).

thf(437,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( ~ ( ~ ( in @ ( sK11_C @ SX1 @ SX0 ) @ SX1 )
                    | ~ ( subset @ ( sK11_C @ SX1 @ SX0 ) @ SX0 ) )
                | ~ ( ( in @ ( sK11_C @ SX1 @ SX0 ) @ SX1 )
                    | ( subset @ ( sK11_C @ SX1 @ SX0 ) @ SX0 ) ) )
            | ( SX1
              = ( powerset @ SX0 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[372]) ).

thf(438,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)],[372]) ).

thf(439,plain,
    ! [SV51: $i] :
      ( ( ~ ! [SY219: $i,SY220: $i] :
              ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK10_D @ SY220 @ SY219 @ SV51 ) @ SY220 )
                            | ( ( sK10_D @ SY220 @ SY219 @ SV51 )
                             != SV51 ) )
                        | ~ ( ~ ( in @ ( sK10_D @ SY220 @ SY219 @ SV51 ) @ SY220 )
                            | ( ( sK10_D @ SY220 @ SY219 @ SV51 )
                             != SY219 ) ) )
                  | ~ ( ( in @ ( sK10_D @ SY220 @ SY219 @ SV51 ) @ SY220 )
                      | ( ( sK10_D @ SY220 @ SY219 @ SV51 )
                        = SV51 )
                      | ( ( sK10_D @ SY220 @ SY219 @ SV51 )
                        = SY219 ) ) )
              | ( SY220
                = ( unordered_pair @ SV51 @ SY219 ) ) )
        | ~ ! [SY221: $i,SY222: $i] :
              ( ( SY222
               != ( unordered_pair @ SV51 @ SY221 ) )
              | ~ ( ~ ! [SY223: $i] :
                        ( ~ ( in @ SY223 @ SY222 )
                        | ( SY223 = SV51 )
                        | ( SY223 = SY221 ) )
                  | ~ ~ ( ~ ! [SY224: $i] :
                              ( ( SY224 != SV51 )
                              | ( in @ SY224 @ SY222 ) )
                        | ~ ! [SX3: $i] :
                              ( ( SX3 != SY221 )
                              | ( in @ SX3 @ SY222 ) ) ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[373]) ).

thf(440,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( ( set_difference @ SX0 @ SX1 )
             != empty_set )
            | ( subset @ SX0 @ SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[374]) ).

thf(441,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( subset @ SX0 @ SX1 )
            | ( ( set_difference @ SX0 @ SX1 )
              = empty_set ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[374]) ).

thf(442,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( ( set_intersection2 @ SX0 @ SX1 )
             != empty_set )
            | ( disjoint @ SX0 @ SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[375]) ).

thf(443,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( disjoint @ SX0 @ SX1 )
            | ( ( set_intersection2 @ SX0 @ SX1 )
              = empty_set ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[375]) ).

thf(444,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( ( set_difference @ SX0 @ SX1 )
             != empty_set )
            | ( subset @ SX0 @ SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[376]) ).

thf(445,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( subset @ SX0 @ SX1 )
            | ( ( set_difference @ SX0 @ SX1 )
              = empty_set ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[376]) ).

thf(446,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( subset @ SX0 @ ( singleton @ SX1 ) )
            | ( SX0 = empty_set )
            | ( SX0
              = ( singleton @ SX1 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[377]) ).

thf(447,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)],[377]) ).

thf(448,plain,
    ! [SV52: $i,SV2: $i] :
      ( ( ( ~ ( in @ SV2 @ SV52 ) )
        = $true )
      | ( ( ( set_union2 @ ( singleton @ SV2 ) @ SV52 )
          = SV52 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[379]) ).

thf(449,plain,
    ! [SV53: $i,SV3: $i] :
      ( ( ( ~ ( disjoint @ ( singleton @ SV3 ) @ SV53 ) )
        = $true )
      | ( ( ~ ( in @ SV3 @ SV53 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[380]) ).

thf(450,plain,
    ! [SV54: $i,SV4: $i] :
      ( ( ( ~ ( subset @ SV4 @ SV54 ) )
        = $true )
      | ( ( ! [SY226: $i] :
              ( ( in @ SY226 @ SV4 )
              | ( subset @ SV4 @ ( set_difference @ SV54 @ ( singleton @ SY226 ) ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[381]) ).

thf(451,plain,
    ! [SV55: $i,SV84: $i,SV5: $i] :
      ( ( ! [SY237: $i] :
            ( ( SV5 = SY237 )
            | ( SV5 = SV84 )
            | ( ( unordered_pair @ SV5 @ SV55 )
             != ( unordered_pair @ SV84 @ SY237 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[382]) ).

thf(452,plain,
    ! [SV56: $i,SV6: $i] :
      ( ( ( ~ ( subset @ SV6 @ SV56 ) )
        = $true )
      | ( ( ( set_union2 @ SV6 @ SV56 )
          = SV56 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[383]) ).

thf(453,plain,
    ! [SV85: $i,SV58: $i,SV8: $i] :
      ( ( ~ ( subset @ SV8 @ SV58 )
        | ~ ( subset @ SV8 @ SV85 )
        | ( subset @ SV8 @ ( set_intersection2 @ SV58 @ SV85 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[385]) ).

thf(454,plain,
    ! [SV86: $i,SV59: $i,SV9: $i] :
      ( ( ~ ( subset @ SV9 @ SV59 )
        | ~ ( subset @ SV59 @ SV86 )
        | ( subset @ SV9 @ SV86 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[386]) ).

thf(455,plain,
    ! [SV60: $i,SV10: $i] :
      ( ( ( ~ ( subset @ SV10 @ SV60 ) )
        = $true )
      | ( ( ! [SY231: $i] : ( subset @ ( set_intersection2 @ SV10 @ SY231 ) @ ( set_intersection2 @ SV60 @ SY231 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[387]) ).

thf(456,plain,
    ! [SV61: $i,SV11: $i] :
      ( ( ( ~ ( subset @ SV11 @ SV61 ) )
        = $true )
      | ( ( ( set_intersection2 @ SV11 @ SV61 )
          = SV11 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[388]) ).

thf(457,plain,
    ! [SV62: $i,SV13: $i] :
      ( ( ( ~ ( subset @ SV13 @ SV62 ) )
        = $true )
      | ( ( ! [SY232: $i] : ( subset @ ( set_difference @ SV13 @ SY232 ) @ ( set_difference @ SV62 @ SY232 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[389]) ).

thf(458,plain,
    ! [SV16: $i] :
      ( ( ( subset @ SV16 @ empty_set )
        = $false )
      | ( ( SV16 = empty_set )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[392]) ).

thf(459,plain,
    ! [SV66: $i,SV18: $i] :
      ( ( ( ~ ( subset @ SV18 @ SV66 ) )
        = $true )
      | ( ( SV66
          = ( set_union2 @ SV18 @ ( set_difference @ SV66 @ SV18 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[394]) ).

thf(460,plain,
    ! [SV20: $i,SV68: $i] :
      ( ( ( ~ ( proper_subset @ SV68 @ SV20 ) )
        = $true )
      | ( ( ~ ( subset @ SV20 @ SV68 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[396]) ).

thf(461,plain,
    ! [SV21: $i,SV87: $i,SV69: $i] :
      ( ( ~ ( disjoint @ SV69 @ SV87 )
        | ~ ( subset @ SV21 @ SV69 )
        | ( disjoint @ SV21 @ SV87 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[397]) ).

thf(462,plain,
    ! [SV70: $i,SV23: $i] :
      ( ( ( ~ ( subset @ ( singleton @ SV23 ) @ ( singleton @ SV70 ) ) )
        = $true )
      | ( ( SV23 = SV70 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[398]) ).

thf(463,plain,
    ! [SV88: $i,SV72: $i,SV25: $i] :
      ( ( ~ ( subset @ SV25 @ SV72 )
        | ~ ( subset @ SV88 @ SV72 )
        | ( subset @ ( set_union2 @ SV25 @ SV88 ) @ SV72 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[400]) ).

thf(464,plain,
    ! [SV73: $i,SV26: $i] :
      ( ( ( ! [SY235: $i] :
              ( ( singleton @ SV26 )
             != ( unordered_pair @ SV73 @ SY235 ) ) )
        = $true )
      | ( ( SV26 = SV73 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[401]) ).

thf(465,plain,
    ! [SV89: $i,SV74: $i,SV27: $i] :
      ( ( ( ( singleton @ SV27 )
         != ( unordered_pair @ SV74 @ SV89 ) )
        | ( SV74 = SV89 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[402]) ).

thf(466,plain,
    ! [SV75: $i,SV28: $i] :
      ( ( ( ~ ( in @ SV28 @ SV75 ) )
        = $true )
      | ( ( ~ ( in @ SV75 @ SV28 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[403]) ).

thf(467,plain,
    ! [SV76: $i,SV29: $i] :
      ( ( ( ~ ( proper_subset @ SV29 @ SV76 ) )
        = $true )
      | ( ( ~ ( proper_subset @ SV76 @ SV29 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[404]) ).

thf(468,plain,
    ! [SV90: $i,SV33: $i] :
      ( ( ( ~ ( empty @ ( set_union2 @ SV33 @ SV90 ) ) )
        = $true )
      | ( ( empty @ SV33 )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[408]) ).

thf(469,plain,
    ! [SV34: $i,SV91: $i] :
      ( ( ( ~ ( empty @ ( set_union2 @ SV91 @ SV34 ) ) )
        = $true )
      | ( ( empty @ SV34 )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[409]) ).

thf(470,plain,
    ! [SV80: $i,SV39: $i] :
      ( ( ( ~ ( disjoint @ SV39 @ SV80 ) )
        = $true )
      | ( ( disjoint @ SV80 @ SV39 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[411]) ).

thf(471,plain,
    ! [SV44: $i] :
      ( ( ( empty @ SV44 )
        = $false )
      | ( ( SV44 = empty_set )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[412]) ).

thf(472,plain,
    ! [SV45: $i,SV81: $i] :
      ( ( ( ~ ( empty @ SV81 ) )
        = $true )
      | ( ( ~ ( in @ SV45 @ SV81 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[413]) ).

thf(473,plain,
    ! [SV82: $i,SV46: $i] :
      ( ( ( ( SV46 = SV82 )
          | ~ ( empty @ SV46 ) )
        = $true )
      | ( ( ~ ( empty @ SV82 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[414]) ).

thf(474,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ( disjoint @ SX0 @ SX1 )
          | ( in @ ( sK14_C @ SX1 @ SX0 ) @ ( set_intersection2 @ SX0 @ SX1 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[415]) ).

thf(475,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ! [SX2: $i] :
              ~ ( in @ SX2 @ ( set_intersection2 @ SX0 @ SX1 ) )
          | ~ ( disjoint @ SX0 @ SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[416]) ).

thf(476,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ( SX0 = SX1 )
          | ~ ( subset @ SX0 @ SX1 )
          | ( proper_subset @ SX0 @ SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[417]) ).

thf(477,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)],[418]) ).

thf(478,plain,
    ! [SV47: $i] :
      ( ( ~ ! [SY197: $i,SY198: $i] :
              ( ~ ( ~ ( ~ ( in @ ( sK7_D @ SY198 @ SY197 @ SV47 ) @ SV47 )
                      | ~ ( in @ ( sK7_D @ SY198 @ SY197 @ SV47 ) @ SY197 )
                      | ~ ( in @ ( sK7_D @ SY198 @ SY197 @ SV47 ) @ SY198 ) )
                  | ~ ~ ( ~ ( ( in @ ( sK7_D @ SY198 @ SY197 @ SV47 ) @ SV47 )
                            | ( in @ ( sK7_D @ SY198 @ SY197 @ SV47 ) @ SY198 ) )
                        | ~ ( ( in @ ( sK7_D @ SY198 @ SY197 @ SV47 ) @ SY197 )
                            | ( in @ ( sK7_D @ SY198 @ SY197 @ SV47 ) @ SY198 ) ) ) )
              | ( SY198
                = ( set_intersection2 @ SV47 @ SY197 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[419]) ).

thf(479,plain,
    ! [SV47: $i] :
      ( ( ~ ! [SY199: $i,SY200: $i] :
              ( ( SY200
               != ( set_intersection2 @ SV47 @ SY199 ) )
              | ~ ( ~ ! [SY201: $i] :
                        ( ~ ( in @ SY201 @ SV47 )
                        | ~ ( in @ SY201 @ SY199 )
                        | ( in @ SY201 @ SY200 ) )
                  | ~ ~ ( ~ ! [SY202: $i] :
                              ( ~ ( in @ SY202 @ SY200 )
                              | ( in @ SY202 @ SV47 ) )
                        | ~ ! [SX3: $i] :
                              ( ~ ( in @ SX3 @ SY200 )
                              | ( in @ SX3 @ SY199 ) ) ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[419]) ).

thf(480,plain,
    ( ( ! [SX0: $i] :
          ( ( in @ ( sK12_B @ SX0 ) @ SX0 )
          | ( SX0 = empty_set ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[420]) ).

thf(481,plain,
    ( ( ! [SX0: $i] :
          ( ( SX0 != empty_set )
          | ! [SX1: $i] :
              ~ ( in @ SX1 @ SX0 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[421]) ).

thf(482,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( ~ ( ( ( sK13_C @ SX1 @ SX0 )
                   != SX0 )
                  | ~ ( in @ ( sK13_C @ SX1 @ SX0 ) @ SX1 ) )
              | ~ ( ( ( sK13_C @ SX1 @ SX0 )
                    = SX0 )
                  | ( in @ ( sK13_C @ SX1 @ SX0 ) @ SX1 ) ) )
          | ( SX1
            = ( singleton @ SX0 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[422]) ).

thf(483,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)],[423]) ).

thf(484,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ( disjoint @ SX0 @ SX1 )
          | ~ ( ~ ( in @ ( sK15_C @ SX1 @ SX0 ) @ SX0 )
              | ~ ( in @ ( sK15_C @ SX1 @ SX0 ) @ SX1 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[424]) ).

thf(485,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ! [SX2: $i] :
              ( ~ ( in @ SX2 @ SX0 )
              | ~ ( in @ SX2 @ SX1 ) )
          | ~ ( disjoint @ SX0 @ SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[425]) ).

thf(486,plain,
    ! [SV48: $i] :
      ( ( ~ ! [SY204: $i,SY205: $i] :
              ( ~ ( ~ ( ~ ( in @ ( sK6_D @ SY205 @ SY204 @ SV48 ) @ SV48 )
                      | ( in @ ( sK6_D @ SY205 @ SY204 @ SV48 ) @ SY204 )
                      | ~ ( in @ ( sK6_D @ SY205 @ SY204 @ SV48 ) @ SY205 ) )
                  | ~ ~ ( ~ ( ( in @ ( sK6_D @ SY205 @ SY204 @ SV48 ) @ SV48 )
                            | ( in @ ( sK6_D @ SY205 @ SY204 @ SV48 ) @ SY205 ) )
                        | ~ ( ~ ( in @ ( sK6_D @ SY205 @ SY204 @ SV48 ) @ SY204 )
                            | ( in @ ( sK6_D @ SY205 @ SY204 @ SV48 ) @ SY205 ) ) ) )
              | ( SY205
                = ( set_difference @ SV48 @ SY204 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[426]) ).

thf(487,plain,
    ! [SV48: $i] :
      ( ( ~ ! [SY206: $i,SY207: $i] :
              ( ( SY207
               != ( set_difference @ SV48 @ SY206 ) )
              | ~ ( ~ ! [SY208: $i] :
                        ( ~ ( in @ SY208 @ SV48 )
                        | ( in @ SY208 @ SY206 )
                        | ( in @ SY208 @ SY207 ) )
                  | ~ ~ ( ~ ! [SY209: $i] :
                              ( ~ ( in @ SY209 @ SY207 )
                              | ( in @ SY209 @ SV48 ) )
                        | ~ ! [SX3: $i] :
                              ( ~ ( in @ SX3 @ SY207 )
                              | ~ ( in @ SX3 @ SY206 ) ) ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[426]) ).

thf(488,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ( ( set_difference @ SX0 @ SX1 )
           != SX0 )
          | ( disjoint @ SX0 @ SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[427]) ).

thf(489,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( disjoint @ SX0 @ SX1 )
          | ( ( set_difference @ SX0 @ SX1 )
            = SX0 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[428]) ).

thf(490,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( ~ ( in @ ( sK8_C @ SX1 @ SX0 ) @ SX0 )
              | ~ ~ ( in @ ( sK8_C @ SX1 @ SX0 ) @ SX1 ) )
          | ( subset @ SX0 @ SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[429]) ).

thf(491,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( subset @ SX0 @ SX1 )
          | ! [SX2: $i] :
              ( ~ ( in @ SX2 @ SX0 )
              | ( in @ SX2 @ SX1 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[430]) ).

thf(492,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( in @ SX0 @ SX1 )
          | ( subset @ ( singleton @ SX0 ) @ SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[431]) ).

thf(493,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( subset @ ( singleton @ SX0 ) @ SX1 )
          | ( in @ SX0 @ SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[432]) ).

thf(494,plain,
    ! [SV49: $i] :
      ( ( ~ ! [SY211: $i,SY212: $i] :
              ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK9_D @ SY212 @ SY211 @ SV49 ) @ SY212 )
                            | ~ ( in @ ( sK9_D @ SY212 @ SY211 @ SV49 ) @ SV49 ) )
                        | ~ ( ~ ( in @ ( sK9_D @ SY212 @ SY211 @ SV49 ) @ SY212 )
                            | ~ ( in @ ( sK9_D @ SY212 @ SY211 @ SV49 ) @ SY211 ) ) )
                  | ~ ( ( in @ ( sK9_D @ SY212 @ SY211 @ SV49 ) @ SY212 )
                      | ( in @ ( sK9_D @ SY212 @ SY211 @ SV49 ) @ SV49 )
                      | ( in @ ( sK9_D @ SY212 @ SY211 @ SV49 ) @ SY211 ) ) )
              | ( SY212
                = ( set_union2 @ SV49 @ SY211 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[433]) ).

thf(495,plain,
    ! [SV49: $i] :
      ( ( ~ ! [SY213: $i,SY214: $i] :
              ( ( SY214
               != ( set_union2 @ SV49 @ SY213 ) )
              | ~ ( ~ ! [SY215: $i] :
                        ( ~ ( in @ SY215 @ SY214 )
                        | ( in @ SY215 @ SV49 )
                        | ( in @ SY215 @ SY213 ) )
                  | ~ ~ ( ~ ! [SY216: $i] :
                              ( ~ ( in @ SY216 @ SV49 )
                              | ( in @ SY216 @ SY214 ) )
                        | ~ ! [SX3: $i] :
                              ( ~ ( in @ SX3 @ SY213 )
                              | ( in @ SX3 @ SY214 ) ) ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[433]) ).

thf(496,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( subset @ SX0 @ SX1 )
          | ~ ( subset @ SX1 @ SX0 )
          | ( SX0 = SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[434]) ).

thf(497,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)],[435]) ).

thf(498,plain,
    ! [SV50: $i,SV83: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ ( sK3_C @ SV83 @ SV50 ) @ SV50 )
                  | ~ ( in @ ( sK3_C @ SV83 @ SV50 ) @ SV83 ) )
              | ~ ( ( in @ ( sK3_C @ SV83 @ SV50 ) @ SV50 )
                  | ( in @ ( sK3_C @ SV83 @ SV50 ) @ SV83 ) ) ) )
        = $true )
      | ( ( SV50 = SV83 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[436]) ).

thf(499,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( ~ ( ~ ( in @ ( sK11_C @ SX1 @ SX0 ) @ SX1 )
                  | ~ ( subset @ ( sK11_C @ SX1 @ SX0 ) @ SX0 ) )
              | ~ ( ( in @ ( sK11_C @ SX1 @ SX0 ) @ SX1 )
                  | ( subset @ ( sK11_C @ SX1 @ SX0 ) @ SX0 ) ) )
          | ( SX1
            = ( powerset @ SX0 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[437]) ).

thf(500,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)],[438]) ).

thf(501,plain,
    ! [SV51: $i] :
      ( ( ~ ! [SY219: $i,SY220: $i] :
              ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK10_D @ SY220 @ SY219 @ SV51 ) @ SY220 )
                            | ( ( sK10_D @ SY220 @ SY219 @ SV51 )
                             != SV51 ) )
                        | ~ ( ~ ( in @ ( sK10_D @ SY220 @ SY219 @ SV51 ) @ SY220 )
                            | ( ( sK10_D @ SY220 @ SY219 @ SV51 )
                             != SY219 ) ) )
                  | ~ ( ( in @ ( sK10_D @ SY220 @ SY219 @ SV51 ) @ SY220 )
                      | ( ( sK10_D @ SY220 @ SY219 @ SV51 )
                        = SV51 )
                      | ( ( sK10_D @ SY220 @ SY219 @ SV51 )
                        = SY219 ) ) )
              | ( SY220
                = ( unordered_pair @ SV51 @ SY219 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[439]) ).

thf(502,plain,
    ! [SV51: $i] :
      ( ( ~ ! [SY221: $i,SY222: $i] :
              ( ( SY222
               != ( unordered_pair @ SV51 @ SY221 ) )
              | ~ ( ~ ! [SY223: $i] :
                        ( ~ ( in @ SY223 @ SY222 )
                        | ( SY223 = SV51 )
                        | ( SY223 = SY221 ) )
                  | ~ ~ ( ~ ! [SY224: $i] :
                              ( ( SY224 != SV51 )
                              | ( in @ SY224 @ SY222 ) )
                        | ~ ! [SX3: $i] :
                              ( ( SX3 != SY221 )
                              | ( in @ SX3 @ SY222 ) ) ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[439]) ).

thf(503,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ( ( set_difference @ SX0 @ SX1 )
           != empty_set )
          | ( subset @ SX0 @ SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[440]) ).

thf(504,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( subset @ SX0 @ SX1 )
          | ( ( set_difference @ SX0 @ SX1 )
            = empty_set ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[441]) ).

thf(505,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ( ( set_intersection2 @ SX0 @ SX1 )
           != empty_set )
          | ( disjoint @ SX0 @ SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[442]) ).

thf(506,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( disjoint @ SX0 @ SX1 )
          | ( ( set_intersection2 @ SX0 @ SX1 )
            = empty_set ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[443]) ).

thf(507,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ( ( set_difference @ SX0 @ SX1 )
           != empty_set )
          | ( subset @ SX0 @ SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[444]) ).

thf(508,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( subset @ SX0 @ SX1 )
          | ( ( set_difference @ SX0 @ SX1 )
            = empty_set ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[445]) ).

thf(509,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( subset @ SX0 @ ( singleton @ SX1 ) )
          | ( SX0 = empty_set )
          | ( SX0
            = ( singleton @ SX1 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[446]) ).

thf(510,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)],[447]) ).

thf(511,plain,
    ! [SV52: $i,SV2: $i] :
      ( ( ( in @ SV2 @ SV52 )
        = $false )
      | ( ( ( set_union2 @ ( singleton @ SV2 ) @ SV52 )
          = SV52 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[448]) ).

thf(512,plain,
    ! [SV53: $i,SV3: $i] :
      ( ( ( disjoint @ ( singleton @ SV3 ) @ SV53 )
        = $false )
      | ( ( ~ ( in @ SV3 @ SV53 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[449]) ).

thf(513,plain,
    ! [SV54: $i,SV4: $i] :
      ( ( ( subset @ SV4 @ SV54 )
        = $false )
      | ( ( ! [SY226: $i] :
              ( ( in @ SY226 @ SV4 )
              | ( subset @ SV4 @ ( set_difference @ SV54 @ ( singleton @ SY226 ) ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[450]) ).

thf(514,plain,
    ! [SV55: $i,SV84: $i,SV92: $i,SV5: $i] :
      ( ( ( SV5 = SV92 )
        | ( SV5 = SV84 )
        | ( ( unordered_pair @ SV5 @ SV55 )
         != ( unordered_pair @ SV84 @ SV92 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[451]) ).

thf(515,plain,
    ! [SV56: $i,SV6: $i] :
      ( ( ( subset @ SV6 @ SV56 )
        = $false )
      | ( ( ( set_union2 @ SV6 @ SV56 )
          = SV56 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[452]) ).

thf(516,plain,
    ! [SV85: $i,SV58: $i,SV8: $i] :
      ( ( ( ~ ( subset @ SV8 @ SV58 )
          | ~ ( subset @ SV8 @ SV85 ) )
        = $true )
      | ( ( subset @ SV8 @ ( set_intersection2 @ SV58 @ SV85 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[453]) ).

thf(517,plain,
    ! [SV86: $i,SV59: $i,SV9: $i] :
      ( ( ( ~ ( subset @ SV9 @ SV59 )
          | ~ ( subset @ SV59 @ SV86 ) )
        = $true )
      | ( ( subset @ SV9 @ SV86 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[454]) ).

thf(518,plain,
    ! [SV60: $i,SV10: $i] :
      ( ( ( subset @ SV10 @ SV60 )
        = $false )
      | ( ( ! [SY231: $i] : ( subset @ ( set_intersection2 @ SV10 @ SY231 ) @ ( set_intersection2 @ SV60 @ SY231 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[455]) ).

thf(519,plain,
    ! [SV61: $i,SV11: $i] :
      ( ( ( subset @ SV11 @ SV61 )
        = $false )
      | ( ( ( set_intersection2 @ SV11 @ SV61 )
          = SV11 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[456]) ).

thf(520,plain,
    ! [SV62: $i,SV13: $i] :
      ( ( ( subset @ SV13 @ SV62 )
        = $false )
      | ( ( ! [SY232: $i] : ( subset @ ( set_difference @ SV13 @ SY232 ) @ ( set_difference @ SV62 @ SY232 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[457]) ).

thf(521,plain,
    ! [SV66: $i,SV18: $i] :
      ( ( ( subset @ SV18 @ SV66 )
        = $false )
      | ( ( SV66
          = ( set_union2 @ SV18 @ ( set_difference @ SV66 @ SV18 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[459]) ).

thf(522,plain,
    ! [SV20: $i,SV68: $i] :
      ( ( ( proper_subset @ SV68 @ SV20 )
        = $false )
      | ( ( ~ ( subset @ SV20 @ SV68 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[460]) ).

thf(523,plain,
    ! [SV21: $i,SV87: $i,SV69: $i] :
      ( ( ( ~ ( disjoint @ SV69 @ SV87 )
          | ~ ( subset @ SV21 @ SV69 ) )
        = $true )
      | ( ( disjoint @ SV21 @ SV87 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[461]) ).

thf(524,plain,
    ! [SV70: $i,SV23: $i] :
      ( ( ( subset @ ( singleton @ SV23 ) @ ( singleton @ SV70 ) )
        = $false )
      | ( ( SV23 = SV70 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[462]) ).

thf(525,plain,
    ! [SV88: $i,SV72: $i,SV25: $i] :
      ( ( ( ~ ( subset @ SV25 @ SV72 )
          | ~ ( subset @ SV88 @ SV72 ) )
        = $true )
      | ( ( subset @ ( set_union2 @ SV25 @ SV88 ) @ SV72 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[463]) ).

thf(526,plain,
    ! [SV93: $i,SV73: $i,SV26: $i] :
      ( ( ( ( ( singleton @ SV26 )
           != ( unordered_pair @ SV73 @ SV93 ) ) )
        = $true )
      | ( ( SV26 = SV73 )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[464]) ).

thf(527,plain,
    ! [SV89: $i,SV74: $i,SV27: $i] :
      ( ( ( ( ( singleton @ SV27 )
           != ( unordered_pair @ SV74 @ SV89 ) ) )
        = $true )
      | ( ( SV74 = SV89 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[465]) ).

thf(528,plain,
    ! [SV75: $i,SV28: $i] :
      ( ( ( in @ SV28 @ SV75 )
        = $false )
      | ( ( ~ ( in @ SV75 @ SV28 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[466]) ).

thf(529,plain,
    ! [SV76: $i,SV29: $i] :
      ( ( ( proper_subset @ SV29 @ SV76 )
        = $false )
      | ( ( ~ ( proper_subset @ SV76 @ SV29 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[467]) ).

thf(530,plain,
    ! [SV90: $i,SV33: $i] :
      ( ( ( empty @ ( set_union2 @ SV33 @ SV90 ) )
        = $false )
      | ( ( empty @ SV33 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[468]) ).

thf(531,plain,
    ! [SV34: $i,SV91: $i] :
      ( ( ( empty @ ( set_union2 @ SV91 @ SV34 ) )
        = $false )
      | ( ( empty @ SV34 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[469]) ).

thf(532,plain,
    ! [SV80: $i,SV39: $i] :
      ( ( ( disjoint @ SV39 @ SV80 )
        = $false )
      | ( ( disjoint @ SV80 @ SV39 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[470]) ).

thf(533,plain,
    ! [SV45: $i,SV81: $i] :
      ( ( ( empty @ SV81 )
        = $false )
      | ( ( ~ ( in @ SV45 @ SV81 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[472]) ).

thf(534,plain,
    ! [SV82: $i,SV46: $i] :
      ( ( ( SV46 = SV82 )
        = $true )
      | ( ( ~ ( empty @ SV46 ) )
        = $true )
      | ( ( ~ ( empty @ SV82 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[473]) ).

thf(535,plain,
    ! [SV94: $i] :
      ( ( ! [SY238: $i] :
            ( ( disjoint @ SV94 @ SY238 )
            | ( in @ ( sK14_C @ SY238 @ SV94 ) @ ( set_intersection2 @ SV94 @ SY238 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[474]) ).

thf(536,plain,
    ! [SV95: $i] :
      ( ( ! [SY239: $i] :
            ( ! [SY240: $i] :
                ~ ( in @ SY240 @ ( set_intersection2 @ SV95 @ SY239 ) )
            | ~ ( disjoint @ SV95 @ SY239 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[475]) ).

thf(537,plain,
    ! [SV96: $i] :
      ( ( ! [SY241: $i] :
            ( ( SV96 = SY241 )
            | ~ ( subset @ SV96 @ SY241 )
            | ( proper_subset @ SV96 @ SY241 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[476]) ).

thf(538,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)],[477]) ).

thf(539,plain,
    ! [SV47: $i] :
      ( ( ! [SY197: $i,SY198: $i] :
            ( ~ ( ~ ( ~ ( in @ ( sK7_D @ SY198 @ SY197 @ SV47 ) @ SV47 )
                    | ~ ( in @ ( sK7_D @ SY198 @ SY197 @ SV47 ) @ SY197 )
                    | ~ ( in @ ( sK7_D @ SY198 @ SY197 @ SV47 ) @ SY198 ) )
                | ~ ~ ( ~ ( ( in @ ( sK7_D @ SY198 @ SY197 @ SV47 ) @ SV47 )
                          | ( in @ ( sK7_D @ SY198 @ SY197 @ SV47 ) @ SY198 ) )
                      | ~ ( ( in @ ( sK7_D @ SY198 @ SY197 @ SV47 ) @ SY197 )
                          | ( in @ ( sK7_D @ SY198 @ SY197 @ SV47 ) @ SY198 ) ) ) )
            | ( SY198
              = ( set_intersection2 @ SV47 @ SY197 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[478]) ).

thf(540,plain,
    ! [SV47: $i] :
      ( ( ! [SY199: $i,SY200: $i] :
            ( ( SY200
             != ( set_intersection2 @ SV47 @ SY199 ) )
            | ~ ( ~ ! [SY201: $i] :
                      ( ~ ( in @ SY201 @ SV47 )
                      | ~ ( in @ SY201 @ SY199 )
                      | ( in @ SY201 @ SY200 ) )
                | ~ ~ ( ~ ! [SY202: $i] :
                            ( ~ ( in @ SY202 @ SY200 )
                            | ( in @ SY202 @ SV47 ) )
                      | ~ ! [SX3: $i] :
                            ( ~ ( in @ SX3 @ SY200 )
                            | ( in @ SX3 @ SY199 ) ) ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[479]) ).

thf(541,plain,
    ! [SV97: $i] :
      ( ( ( in @ ( sK12_B @ SV97 ) @ SV97 )
        | ( SV97 = empty_set ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[480]) ).

thf(542,plain,
    ! [SV98: $i] :
      ( ( ( SV98 != empty_set )
        | ! [SY242: $i] :
            ~ ( in @ SY242 @ SV98 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[481]) ).

thf(543,plain,
    ! [SV99: $i] :
      ( ( ! [SY243: $i] :
            ( ~ ( ~ ( ( ( sK13_C @ SY243 @ SV99 )
                     != SV99 )
                    | ~ ( in @ ( sK13_C @ SY243 @ SV99 ) @ SY243 ) )
                | ~ ( ( ( sK13_C @ SY243 @ SV99 )
                      = SV99 )
                    | ( in @ ( sK13_C @ SY243 @ SV99 ) @ SY243 ) ) )
            | ( SY243
              = ( singleton @ SV99 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[482]) ).

thf(544,plain,
    ! [SV100: $i] :
      ( ( ! [SY244: $i] :
            ( ( SY244
             != ( singleton @ SV100 ) )
            | ~ ( ~ ! [SY245: $i] :
                      ( ( SY245 != SV100 )
                      | ( in @ SY245 @ SY244 ) )
                | ~ ! [SY246: $i] :
                      ( ~ ( in @ SY246 @ SY244 )
                      | ( SY246 = SV100 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[483]) ).

thf(545,plain,
    ! [SV101: $i] :
      ( ( ! [SY247: $i] :
            ( ( disjoint @ SV101 @ SY247 )
            | ~ ( ~ ( in @ ( sK15_C @ SY247 @ SV101 ) @ SV101 )
                | ~ ( in @ ( sK15_C @ SY247 @ SV101 ) @ SY247 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[484]) ).

thf(546,plain,
    ! [SV102: $i] :
      ( ( ! [SY248: $i] :
            ( ! [SY249: $i] :
                ( ~ ( in @ SY249 @ SV102 )
                | ~ ( in @ SY249 @ SY248 ) )
            | ~ ( disjoint @ SV102 @ SY248 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[485]) ).

thf(547,plain,
    ! [SV48: $i] :
      ( ( ! [SY204: $i,SY205: $i] :
            ( ~ ( ~ ( ~ ( in @ ( sK6_D @ SY205 @ SY204 @ SV48 ) @ SV48 )
                    | ( in @ ( sK6_D @ SY205 @ SY204 @ SV48 ) @ SY204 )
                    | ~ ( in @ ( sK6_D @ SY205 @ SY204 @ SV48 ) @ SY205 ) )
                | ~ ~ ( ~ ( ( in @ ( sK6_D @ SY205 @ SY204 @ SV48 ) @ SV48 )
                          | ( in @ ( sK6_D @ SY205 @ SY204 @ SV48 ) @ SY205 ) )
                      | ~ ( ~ ( in @ ( sK6_D @ SY205 @ SY204 @ SV48 ) @ SY204 )
                          | ( in @ ( sK6_D @ SY205 @ SY204 @ SV48 ) @ SY205 ) ) ) )
            | ( SY205
              = ( set_difference @ SV48 @ SY204 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[486]) ).

thf(548,plain,
    ! [SV48: $i] :
      ( ( ! [SY206: $i,SY207: $i] :
            ( ( SY207
             != ( set_difference @ SV48 @ SY206 ) )
            | ~ ( ~ ! [SY208: $i] :
                      ( ~ ( in @ SY208 @ SV48 )
                      | ( in @ SY208 @ SY206 )
                      | ( in @ SY208 @ SY207 ) )
                | ~ ~ ( ~ ! [SY209: $i] :
                            ( ~ ( in @ SY209 @ SY207 )
                            | ( in @ SY209 @ SV48 ) )
                      | ~ ! [SX3: $i] :
                            ( ~ ( in @ SX3 @ SY207 )
                            | ~ ( in @ SX3 @ SY206 ) ) ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[487]) ).

thf(549,plain,
    ! [SV103: $i] :
      ( ( ! [SY250: $i] :
            ( ( ( set_difference @ SV103 @ SY250 )
             != SV103 )
            | ( disjoint @ SV103 @ SY250 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[488]) ).

thf(550,plain,
    ! [SV104: $i] :
      ( ( ! [SY251: $i] :
            ( ~ ( disjoint @ SV104 @ SY251 )
            | ( ( set_difference @ SV104 @ SY251 )
              = SV104 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[489]) ).

thf(551,plain,
    ! [SV105: $i] :
      ( ( ! [SY252: $i] :
            ( ~ ( ~ ( in @ ( sK8_C @ SY252 @ SV105 ) @ SV105 )
                | ~ ~ ( in @ ( sK8_C @ SY252 @ SV105 ) @ SY252 ) )
            | ( subset @ SV105 @ SY252 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[490]) ).

thf(552,plain,
    ! [SV106: $i] :
      ( ( ! [SY253: $i] :
            ( ~ ( subset @ SV106 @ SY253 )
            | ! [SY254: $i] :
                ( ~ ( in @ SY254 @ SV106 )
                | ( in @ SY254 @ SY253 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[491]) ).

thf(553,plain,
    ! [SV107: $i] :
      ( ( ! [SY255: $i] :
            ( ~ ( in @ SV107 @ SY255 )
            | ( subset @ ( singleton @ SV107 ) @ SY255 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[492]) ).

thf(554,plain,
    ! [SV108: $i] :
      ( ( ! [SY256: $i] :
            ( ~ ( subset @ ( singleton @ SV108 ) @ SY256 )
            | ( in @ SV108 @ SY256 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[493]) ).

thf(555,plain,
    ! [SV49: $i] :
      ( ( ! [SY211: $i,SY212: $i] :
            ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK9_D @ SY212 @ SY211 @ SV49 ) @ SY212 )
                          | ~ ( in @ ( sK9_D @ SY212 @ SY211 @ SV49 ) @ SV49 ) )
                      | ~ ( ~ ( in @ ( sK9_D @ SY212 @ SY211 @ SV49 ) @ SY212 )
                          | ~ ( in @ ( sK9_D @ SY212 @ SY211 @ SV49 ) @ SY211 ) ) )
                | ~ ( ( in @ ( sK9_D @ SY212 @ SY211 @ SV49 ) @ SY212 )
                    | ( in @ ( sK9_D @ SY212 @ SY211 @ SV49 ) @ SV49 )
                    | ( in @ ( sK9_D @ SY212 @ SY211 @ SV49 ) @ SY211 ) ) )
            | ( SY212
              = ( set_union2 @ SV49 @ SY211 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[494]) ).

thf(556,plain,
    ! [SV49: $i] :
      ( ( ! [SY213: $i,SY214: $i] :
            ( ( SY214
             != ( set_union2 @ SV49 @ SY213 ) )
            | ~ ( ~ ! [SY215: $i] :
                      ( ~ ( in @ SY215 @ SY214 )
                      | ( in @ SY215 @ SV49 )
                      | ( in @ SY215 @ SY213 ) )
                | ~ ~ ( ~ ! [SY216: $i] :
                            ( ~ ( in @ SY216 @ SV49 )
                            | ( in @ SY216 @ SY214 ) )
                      | ~ ! [SX3: $i] :
                            ( ~ ( in @ SX3 @ SY213 )
                            | ( in @ SX3 @ SY214 ) ) ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[495]) ).

thf(557,plain,
    ! [SV109: $i] :
      ( ( ! [SY257: $i] :
            ( ~ ( subset @ SV109 @ SY257 )
            | ~ ( subset @ SY257 @ SV109 )
            | ( SV109 = SY257 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[496]) ).

thf(558,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)],[497]) ).

thf(559,plain,
    ! [SV50: $i,SV83: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK3_C @ SV83 @ SV50 ) @ SV50 )
              | ~ ( in @ ( sK3_C @ SV83 @ SV50 ) @ SV83 ) )
          | ~ ( ( in @ ( sK3_C @ SV83 @ SV50 ) @ SV50 )
              | ( in @ ( sK3_C @ SV83 @ SV50 ) @ SV83 ) ) )
        = $false )
      | ( ( SV50 = SV83 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[498]) ).

thf(560,plain,
    ! [SV110: $i] :
      ( ( ! [SY258: $i] :
            ( ~ ( ~ ( ~ ( in @ ( sK11_C @ SY258 @ SV110 ) @ SY258 )
                    | ~ ( subset @ ( sK11_C @ SY258 @ SV110 ) @ SV110 ) )
                | ~ ( ( in @ ( sK11_C @ SY258 @ SV110 ) @ SY258 )
                    | ( subset @ ( sK11_C @ SY258 @ SV110 ) @ SV110 ) ) )
            | ( SY258
              = ( powerset @ SV110 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[499]) ).

thf(561,plain,
    ! [SV111: $i] :
      ( ( ! [SY259: $i] :
            ( ( SY259
             != ( powerset @ SV111 ) )
            | ~ ( ~ ! [SY260: $i] :
                      ( ~ ( in @ SY260 @ SY259 )
                      | ( subset @ SY260 @ SV111 ) )
                | ~ ! [SY261: $i] :
                      ( ~ ( subset @ SY261 @ SV111 )
                      | ( in @ SY261 @ SY259 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[500]) ).

thf(562,plain,
    ! [SV51: $i] :
      ( ( ! [SY219: $i,SY220: $i] :
            ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK10_D @ SY220 @ SY219 @ SV51 ) @ SY220 )
                          | ( ( sK10_D @ SY220 @ SY219 @ SV51 )
                           != SV51 ) )
                      | ~ ( ~ ( in @ ( sK10_D @ SY220 @ SY219 @ SV51 ) @ SY220 )
                          | ( ( sK10_D @ SY220 @ SY219 @ SV51 )
                           != SY219 ) ) )
                | ~ ( ( in @ ( sK10_D @ SY220 @ SY219 @ SV51 ) @ SY220 )
                    | ( ( sK10_D @ SY220 @ SY219 @ SV51 )
                      = SV51 )
                    | ( ( sK10_D @ SY220 @ SY219 @ SV51 )
                      = SY219 ) ) )
            | ( SY220
              = ( unordered_pair @ SV51 @ SY219 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[501]) ).

thf(563,plain,
    ! [SV51: $i] :
      ( ( ! [SY221: $i,SY222: $i] :
            ( ( SY222
             != ( unordered_pair @ SV51 @ SY221 ) )
            | ~ ( ~ ! [SY223: $i] :
                      ( ~ ( in @ SY223 @ SY222 )
                      | ( SY223 = SV51 )
                      | ( SY223 = SY221 ) )
                | ~ ~ ( ~ ! [SY224: $i] :
                            ( ( SY224 != SV51 )
                            | ( in @ SY224 @ SY222 ) )
                      | ~ ! [SX3: $i] :
                            ( ( SX3 != SY221 )
                            | ( in @ SX3 @ SY222 ) ) ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[502]) ).

thf(564,plain,
    ! [SV112: $i] :
      ( ( ! [SY262: $i] :
            ( ( ( set_difference @ SV112 @ SY262 )
             != empty_set )
            | ( subset @ SV112 @ SY262 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[503]) ).

thf(565,plain,
    ! [SV113: $i] :
      ( ( ! [SY263: $i] :
            ( ~ ( subset @ SV113 @ SY263 )
            | ( ( set_difference @ SV113 @ SY263 )
              = empty_set ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[504]) ).

thf(566,plain,
    ! [SV114: $i] :
      ( ( ! [SY264: $i] :
            ( ( ( set_intersection2 @ SV114 @ SY264 )
             != empty_set )
            | ( disjoint @ SV114 @ SY264 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[505]) ).

thf(567,plain,
    ! [SV115: $i] :
      ( ( ! [SY265: $i] :
            ( ~ ( disjoint @ SV115 @ SY265 )
            | ( ( set_intersection2 @ SV115 @ SY265 )
              = empty_set ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[506]) ).

thf(568,plain,
    ! [SV116: $i] :
      ( ( ! [SY266: $i] :
            ( ( ( set_difference @ SV116 @ SY266 )
             != empty_set )
            | ( subset @ SV116 @ SY266 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[507]) ).

thf(569,plain,
    ! [SV117: $i] :
      ( ( ! [SY267: $i] :
            ( ~ ( subset @ SV117 @ SY267 )
            | ( ( set_difference @ SV117 @ SY267 )
              = empty_set ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[508]) ).

thf(570,plain,
    ! [SV118: $i] :
      ( ( ! [SY268: $i] :
            ( ~ ( subset @ SV118 @ ( singleton @ SY268 ) )
            | ( SV118 = empty_set )
            | ( SV118
              = ( singleton @ SY268 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[509]) ).

thf(571,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)],[510]) ).

thf(572,plain,
    ! [SV53: $i,SV3: $i] :
      ( ( ( in @ SV3 @ SV53 )
        = $false )
      | ( ( disjoint @ ( singleton @ SV3 ) @ SV53 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[512]) ).

thf(573,plain,
    ! [SV54: $i,SV4: $i,SV119: $i] :
      ( ( ( ( in @ SV119 @ SV4 )
          | ( subset @ SV4 @ ( set_difference @ SV54 @ ( singleton @ SV119 ) ) ) )
        = $true )
      | ( ( subset @ SV4 @ SV54 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[513]) ).

thf(574,plain,
    ! [SV55: $i,SV84: $i,SV92: $i,SV5: $i] :
      ( ( ( SV5 = SV92 )
        = $true )
      | ( ( ( SV5 = SV84 )
          | ( ( unordered_pair @ SV5 @ SV55 )
           != ( unordered_pair @ SV84 @ SV92 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[514]) ).

thf(575,plain,
    ! [SV85: $i,SV58: $i,SV8: $i] :
      ( ( ( ~ ( subset @ SV8 @ SV58 ) )
        = $true )
      | ( ( ~ ( subset @ SV8 @ SV85 ) )
        = $true )
      | ( ( subset @ SV8 @ ( set_intersection2 @ SV58 @ SV85 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[516]) ).

thf(576,plain,
    ! [SV86: $i,SV59: $i,SV9: $i] :
      ( ( ( ~ ( subset @ SV9 @ SV59 ) )
        = $true )
      | ( ( ~ ( subset @ SV59 @ SV86 ) )
        = $true )
      | ( ( subset @ SV9 @ SV86 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[517]) ).

thf(577,plain,
    ! [SV60: $i,SV120: $i,SV10: $i] :
      ( ( ( subset @ ( set_intersection2 @ SV10 @ SV120 ) @ ( set_intersection2 @ SV60 @ SV120 ) )
        = $true )
      | ( ( subset @ SV10 @ SV60 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[518]) ).

thf(578,plain,
    ! [SV62: $i,SV121: $i,SV13: $i] :
      ( ( ( subset @ ( set_difference @ SV13 @ SV121 ) @ ( set_difference @ SV62 @ SV121 ) )
        = $true )
      | ( ( subset @ SV13 @ SV62 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[520]) ).

thf(579,plain,
    ! [SV68: $i,SV20: $i] :
      ( ( ( subset @ SV20 @ SV68 )
        = $false )
      | ( ( proper_subset @ SV68 @ SV20 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[522]) ).

thf(580,plain,
    ! [SV21: $i,SV87: $i,SV69: $i] :
      ( ( ( ~ ( disjoint @ SV69 @ SV87 ) )
        = $true )
      | ( ( ~ ( subset @ SV21 @ SV69 ) )
        = $true )
      | ( ( disjoint @ SV21 @ SV87 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[523]) ).

thf(581,plain,
    ! [SV88: $i,SV72: $i,SV25: $i] :
      ( ( ( ~ ( subset @ SV25 @ SV72 ) )
        = $true )
      | ( ( ~ ( subset @ SV88 @ SV72 ) )
        = $true )
      | ( ( subset @ ( set_union2 @ SV25 @ SV88 ) @ SV72 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[525]) ).

thf(582,plain,
    ! [SV93: $i,SV73: $i,SV26: $i] :
      ( ( ( ( singleton @ SV26 )
          = ( unordered_pair @ SV73 @ SV93 ) )
        = $false )
      | ( ( SV26 = SV73 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[526]) ).

thf(583,plain,
    ! [SV89: $i,SV74: $i,SV27: $i] :
      ( ( ( ( singleton @ SV27 )
          = ( unordered_pair @ SV74 @ SV89 ) )
        = $false )
      | ( ( SV74 = SV89 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[527]) ).

thf(584,plain,
    ! [SV28: $i,SV75: $i] :
      ( ( ( in @ SV75 @ SV28 )
        = $false )
      | ( ( in @ SV28 @ SV75 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[528]) ).

thf(585,plain,
    ! [SV29: $i,SV76: $i] :
      ( ( ( proper_subset @ SV76 @ SV29 )
        = $false )
      | ( ( proper_subset @ SV29 @ SV76 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[529]) ).

thf(586,plain,
    ! [SV81: $i,SV45: $i] :
      ( ( ( in @ SV45 @ SV81 )
        = $false )
      | ( ( empty @ SV81 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[533]) ).

thf(587,plain,
    ! [SV82: $i,SV46: $i] :
      ( ( ( empty @ SV46 )
        = $false )
      | ( ( SV46 = SV82 )
        = $true )
      | ( ( ~ ( empty @ SV82 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[534]) ).

thf(588,plain,
    ! [SV122: $i,SV94: $i] :
      ( ( ( disjoint @ SV94 @ SV122 )
        | ( in @ ( sK14_C @ SV122 @ SV94 ) @ ( set_intersection2 @ SV94 @ SV122 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[535]) ).

thf(589,plain,
    ! [SV123: $i,SV95: $i] :
      ( ( ! [SY269: $i] :
            ~ ( in @ SY269 @ ( set_intersection2 @ SV95 @ SV123 ) )
        | ~ ( disjoint @ SV95 @ SV123 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[536]) ).

thf(590,plain,
    ! [SV124: $i,SV96: $i] :
      ( ( ( SV96 = SV124 )
        | ~ ( subset @ SV96 @ SV124 )
        | ( proper_subset @ SV96 @ SV124 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[537]) ).

thf(591,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( proper_subset @ SX0 @ SX1 )
            | ( SX0 != SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[538]) ).

thf(592,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( proper_subset @ SX0 @ SX1 )
            | ( subset @ SX0 @ SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[538]) ).

thf(593,plain,
    ! [SV47: $i,SV125: $i] :
      ( ( ! [SY270: $i] :
            ( ~ ( ~ ( ~ ( in @ ( sK7_D @ SY270 @ SV125 @ SV47 ) @ SV47 )
                    | ~ ( in @ ( sK7_D @ SY270 @ SV125 @ SV47 ) @ SV125 )
                    | ~ ( in @ ( sK7_D @ SY270 @ SV125 @ SV47 ) @ SY270 ) )
                | ~ ~ ( ~ ( ( in @ ( sK7_D @ SY270 @ SV125 @ SV47 ) @ SV47 )
                          | ( in @ ( sK7_D @ SY270 @ SV125 @ SV47 ) @ SY270 ) )
                      | ~ ( ( in @ ( sK7_D @ SY270 @ SV125 @ SV47 ) @ SV125 )
                          | ( in @ ( sK7_D @ SY270 @ SV125 @ SV47 ) @ SY270 ) ) ) )
            | ( SY270
              = ( set_intersection2 @ SV47 @ SV125 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[539]) ).

thf(594,plain,
    ! [SV126: $i,SV47: $i] :
      ( ( ! [SY271: $i] :
            ( ( SY271
             != ( set_intersection2 @ SV47 @ SV126 ) )
            | ~ ( ~ ! [SY272: $i] :
                      ( ~ ( in @ SY272 @ SV47 )
                      | ~ ( in @ SY272 @ SV126 )
                      | ( in @ SY272 @ SY271 ) )
                | ~ ~ ( ~ ! [SY202: $i] :
                            ( ~ ( in @ SY202 @ SY271 )
                            | ( in @ SY202 @ SV47 ) )
                      | ~ ! [SY274: $i] :
                            ( ~ ( in @ SY274 @ SY271 )
                            | ( in @ SY274 @ SV126 ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[540]) ).

thf(595,plain,
    ! [SV97: $i] :
      ( ( ( in @ ( sK12_B @ SV97 ) @ SV97 )
        = $true )
      | ( ( SV97 = empty_set )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[541]) ).

thf(596,plain,
    ! [SV98: $i] :
      ( ( ( ( SV98 != empty_set ) )
        = $true )
      | ( ( ! [SY242: $i] :
              ~ ( in @ SY242 @ SV98 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[542]) ).

thf(597,plain,
    ! [SV99: $i,SV127: $i] :
      ( ( ~ ( ~ ( ( ( sK13_C @ SV127 @ SV99 )
                 != SV99 )
                | ~ ( in @ ( sK13_C @ SV127 @ SV99 ) @ SV127 ) )
            | ~ ( ( ( sK13_C @ SV127 @ SV99 )
                  = SV99 )
                | ( in @ ( sK13_C @ SV127 @ SV99 ) @ SV127 ) ) )
        | ( SV127
          = ( singleton @ SV99 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[543]) ).

thf(598,plain,
    ! [SV100: $i,SV128: $i] :
      ( ( ( SV128
         != ( singleton @ SV100 ) )
        | ~ ( ~ ! [SY275: $i] :
                  ( ( SY275 != SV100 )
                  | ( in @ SY275 @ SV128 ) )
            | ~ ! [SY276: $i] :
                  ( ~ ( in @ SY276 @ SV128 )
                  | ( SY276 = SV100 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[544]) ).

thf(599,plain,
    ! [SV129: $i,SV101: $i] :
      ( ( ( disjoint @ SV101 @ SV129 )
        | ~ ( ~ ( in @ ( sK15_C @ SV129 @ SV101 ) @ SV101 )
            | ~ ( in @ ( sK15_C @ SV129 @ SV101 ) @ SV129 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[545]) ).

thf(600,plain,
    ! [SV130: $i,SV102: $i] :
      ( ( ! [SY277: $i] :
            ( ~ ( in @ SY277 @ SV102 )
            | ~ ( in @ SY277 @ SV130 ) )
        | ~ ( disjoint @ SV102 @ SV130 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[546]) ).

thf(601,plain,
    ! [SV48: $i,SV131: $i] :
      ( ( ! [SY278: $i] :
            ( ~ ( ~ ( ~ ( in @ ( sK6_D @ SY278 @ SV131 @ SV48 ) @ SV48 )
                    | ( in @ ( sK6_D @ SY278 @ SV131 @ SV48 ) @ SV131 )
                    | ~ ( in @ ( sK6_D @ SY278 @ SV131 @ SV48 ) @ SY278 ) )
                | ~ ~ ( ~ ( ( in @ ( sK6_D @ SY278 @ SV131 @ SV48 ) @ SV48 )
                          | ( in @ ( sK6_D @ SY278 @ SV131 @ SV48 ) @ SY278 ) )
                      | ~ ( ~ ( in @ ( sK6_D @ SY278 @ SV131 @ SV48 ) @ SV131 )
                          | ( in @ ( sK6_D @ SY278 @ SV131 @ SV48 ) @ SY278 ) ) ) )
            | ( SY278
              = ( set_difference @ SV48 @ SV131 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[547]) ).

thf(602,plain,
    ! [SV132: $i,SV48: $i] :
      ( ( ! [SY279: $i] :
            ( ( SY279
             != ( set_difference @ SV48 @ SV132 ) )
            | ~ ( ~ ! [SY280: $i] :
                      ( ~ ( in @ SY280 @ SV48 )
                      | ( in @ SY280 @ SV132 )
                      | ( in @ SY280 @ SY279 ) )
                | ~ ~ ( ~ ! [SY209: $i] :
                            ( ~ ( in @ SY209 @ SY279 )
                            | ( in @ SY209 @ SV48 ) )
                      | ~ ! [SY282: $i] :
                            ( ~ ( in @ SY282 @ SY279 )
                            | ~ ( in @ SY282 @ SV132 ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[548]) ).

thf(603,plain,
    ! [SV133: $i,SV103: $i] :
      ( ( ( ( set_difference @ SV103 @ SV133 )
         != SV103 )
        | ( disjoint @ SV103 @ SV133 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[549]) ).

thf(604,plain,
    ! [SV134: $i,SV104: $i] :
      ( ( ~ ( disjoint @ SV104 @ SV134 )
        | ( ( set_difference @ SV104 @ SV134 )
          = SV104 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[550]) ).

thf(605,plain,
    ! [SV105: $i,SV135: $i] :
      ( ( ~ ( ~ ( in @ ( sK8_C @ SV135 @ SV105 ) @ SV105 )
            | ~ ~ ( in @ ( sK8_C @ SV135 @ SV105 ) @ SV135 ) )
        | ( subset @ SV105 @ SV135 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[551]) ).

thf(606,plain,
    ! [SV136: $i,SV106: $i] :
      ( ( ~ ( subset @ SV106 @ SV136 )
        | ! [SY283: $i] :
            ( ~ ( in @ SY283 @ SV106 )
            | ( in @ SY283 @ SV136 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[552]) ).

thf(607,plain,
    ! [SV137: $i,SV107: $i] :
      ( ( ~ ( in @ SV107 @ SV137 )
        | ( subset @ ( singleton @ SV107 ) @ SV137 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[553]) ).

thf(608,plain,
    ! [SV138: $i,SV108: $i] :
      ( ( ~ ( subset @ ( singleton @ SV108 ) @ SV138 )
        | ( in @ SV108 @ SV138 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[554]) ).

thf(609,plain,
    ! [SV49: $i,SV139: $i] :
      ( ( ! [SY284: $i] :
            ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK9_D @ SY284 @ SV139 @ SV49 ) @ SY284 )
                          | ~ ( in @ ( sK9_D @ SY284 @ SV139 @ SV49 ) @ SV49 ) )
                      | ~ ( ~ ( in @ ( sK9_D @ SY284 @ SV139 @ SV49 ) @ SY284 )
                          | ~ ( in @ ( sK9_D @ SY284 @ SV139 @ SV49 ) @ SV139 ) ) )
                | ~ ( ( in @ ( sK9_D @ SY284 @ SV139 @ SV49 ) @ SY284 )
                    | ( in @ ( sK9_D @ SY284 @ SV139 @ SV49 ) @ SV49 )
                    | ( in @ ( sK9_D @ SY284 @ SV139 @ SV49 ) @ SV139 ) ) )
            | ( SY284
              = ( set_union2 @ SV49 @ SV139 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[555]) ).

thf(610,plain,
    ! [SV140: $i,SV49: $i] :
      ( ( ! [SY285: $i] :
            ( ( SY285
             != ( set_union2 @ SV49 @ SV140 ) )
            | ~ ( ~ ! [SY286: $i] :
                      ( ~ ( in @ SY286 @ SY285 )
                      | ( in @ SY286 @ SV49 )
                      | ( in @ SY286 @ SV140 ) )
                | ~ ~ ( ~ ! [SY216: $i] :
                            ( ~ ( in @ SY216 @ SV49 )
                            | ( in @ SY216 @ SY285 ) )
                      | ~ ! [SY288: $i] :
                            ( ~ ( in @ SY288 @ SV140 )
                            | ( in @ SY288 @ SY285 ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[556]) ).

thf(611,plain,
    ! [SV141: $i,SV109: $i] :
      ( ( ~ ( subset @ SV109 @ SV141 )
        | ~ ( subset @ SV141 @ SV109 )
        | ( SV109 = SV141 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[557]) ).

thf(612,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( SX0 != SX1 )
            | ( subset @ SX0 @ SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[558]) ).

thf(613,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( SX0 != SX1 )
            | ( subset @ SX1 @ SX0 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[558]) ).

thf(614,plain,
    ! [SV50: $i,SV83: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK3_C @ SV83 @ SV50 ) @ SV50 )
              | ~ ( in @ ( sK3_C @ SV83 @ SV50 ) @ SV83 ) ) )
        = $false )
      | ( ( SV50 = SV83 )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[559]) ).

thf(615,plain,
    ! [SV50: $i,SV83: $i] :
      ( ( ( ~ ( ( in @ ( sK3_C @ SV83 @ SV50 ) @ SV50 )
              | ( in @ ( sK3_C @ SV83 @ SV50 ) @ SV83 ) ) )
        = $false )
      | ( ( SV50 = SV83 )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[559]) ).

thf(616,plain,
    ! [SV110: $i,SV142: $i] :
      ( ( ~ ( ~ ( ~ ( in @ ( sK11_C @ SV142 @ SV110 ) @ SV142 )
                | ~ ( subset @ ( sK11_C @ SV142 @ SV110 ) @ SV110 ) )
            | ~ ( ( in @ ( sK11_C @ SV142 @ SV110 ) @ SV142 )
                | ( subset @ ( sK11_C @ SV142 @ SV110 ) @ SV110 ) ) )
        | ( SV142
          = ( powerset @ SV110 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[560]) ).

thf(617,plain,
    ! [SV111: $i,SV143: $i] :
      ( ( ( SV143
         != ( powerset @ SV111 ) )
        | ~ ( ~ ! [SY289: $i] :
                  ( ~ ( in @ SY289 @ SV143 )
                  | ( subset @ SY289 @ SV111 ) )
            | ~ ! [SY290: $i] :
                  ( ~ ( subset @ SY290 @ SV111 )
                  | ( in @ SY290 @ SV143 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[561]) ).

thf(618,plain,
    ! [SV51: $i,SV144: $i] :
      ( ( ! [SY291: $i] :
            ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK10_D @ SY291 @ SV144 @ SV51 ) @ SY291 )
                          | ( ( sK10_D @ SY291 @ SV144 @ SV51 )
                           != SV51 ) )
                      | ~ ( ~ ( in @ ( sK10_D @ SY291 @ SV144 @ SV51 ) @ SY291 )
                          | ( ( sK10_D @ SY291 @ SV144 @ SV51 )
                           != SV144 ) ) )
                | ~ ( ( in @ ( sK10_D @ SY291 @ SV144 @ SV51 ) @ SY291 )
                    | ( ( sK10_D @ SY291 @ SV144 @ SV51 )
                      = SV51 )
                    | ( ( sK10_D @ SY291 @ SV144 @ SV51 )
                      = SV144 ) ) )
            | ( SY291
              = ( unordered_pair @ SV51 @ SV144 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[562]) ).

thf(619,plain,
    ! [SV145: $i,SV51: $i] :
      ( ( ! [SY292: $i] :
            ( ( SY292
             != ( unordered_pair @ SV51 @ SV145 ) )
            | ~ ( ~ ! [SY293: $i] :
                      ( ~ ( in @ SY293 @ SY292 )
                      | ( SY293 = SV51 )
                      | ( SY293 = SV145 ) )
                | ~ ~ ( ~ ! [SY224: $i] :
                            ( ( SY224 != SV51 )
                            | ( in @ SY224 @ SY292 ) )
                      | ~ ! [SY295: $i] :
                            ( ( SY295 != SV145 )
                            | ( in @ SY295 @ SY292 ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[563]) ).

thf(620,plain,
    ! [SV146: $i,SV112: $i] :
      ( ( ( ( set_difference @ SV112 @ SV146 )
         != empty_set )
        | ( subset @ SV112 @ SV146 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[564]) ).

thf(621,plain,
    ! [SV147: $i,SV113: $i] :
      ( ( ~ ( subset @ SV113 @ SV147 )
        | ( ( set_difference @ SV113 @ SV147 )
          = empty_set ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[565]) ).

thf(622,plain,
    ! [SV148: $i,SV114: $i] :
      ( ( ( ( set_intersection2 @ SV114 @ SV148 )
         != empty_set )
        | ( disjoint @ SV114 @ SV148 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[566]) ).

thf(623,plain,
    ! [SV149: $i,SV115: $i] :
      ( ( ~ ( disjoint @ SV115 @ SV149 )
        | ( ( set_intersection2 @ SV115 @ SV149 )
          = empty_set ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[567]) ).

thf(624,plain,
    ! [SV150: $i,SV116: $i] :
      ( ( ( ( set_difference @ SV116 @ SV150 )
         != empty_set )
        | ( subset @ SV116 @ SV150 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[568]) ).

thf(625,plain,
    ! [SV151: $i,SV117: $i] :
      ( ( ~ ( subset @ SV117 @ SV151 )
        | ( ( set_difference @ SV117 @ SV151 )
          = empty_set ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[569]) ).

thf(626,plain,
    ! [SV152: $i,SV118: $i] :
      ( ( ~ ( subset @ SV118 @ ( singleton @ SV152 ) )
        | ( SV118 = empty_set )
        | ( SV118
          = ( singleton @ SV152 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[570]) ).

thf(627,plain,
    ( ( ~ ! [SX0: $i] :
            ( ( SX0 != empty_set )
            | ! [SX1: $i] : ( subset @ SX0 @ ( singleton @ SX1 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[571]) ).

thf(628,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( SX0
             != ( singleton @ SX1 ) )
            | ( subset @ SX0 @ ( singleton @ SX1 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[571]) ).

thf(629,plain,
    ! [SV54: $i,SV4: $i,SV119: $i] :
      ( ( ( in @ SV119 @ SV4 )
        = $true )
      | ( ( subset @ SV4 @ ( set_difference @ SV54 @ ( singleton @ SV119 ) ) )
        = $true )
      | ( ( subset @ SV4 @ SV54 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[573]) ).

thf(630,plain,
    ! [SV92: $i,SV55: $i,SV84: $i,SV5: $i] :
      ( ( ( SV5 = SV84 )
        = $true )
      | ( ( ( ( unordered_pair @ SV5 @ SV55 )
           != ( unordered_pair @ SV84 @ SV92 ) ) )
        = $true )
      | ( ( SV5 = SV92 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[574]) ).

thf(631,plain,
    ! [SV85: $i,SV58: $i,SV8: $i] :
      ( ( ( subset @ SV8 @ SV58 )
        = $false )
      | ( ( ~ ( subset @ SV8 @ SV85 ) )
        = $true )
      | ( ( subset @ SV8 @ ( set_intersection2 @ SV58 @ SV85 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[575]) ).

thf(632,plain,
    ! [SV86: $i,SV59: $i,SV9: $i] :
      ( ( ( subset @ SV9 @ SV59 )
        = $false )
      | ( ( ~ ( subset @ SV59 @ SV86 ) )
        = $true )
      | ( ( subset @ SV9 @ SV86 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[576]) ).

thf(633,plain,
    ! [SV21: $i,SV87: $i,SV69: $i] :
      ( ( ( disjoint @ SV69 @ SV87 )
        = $false )
      | ( ( ~ ( subset @ SV21 @ SV69 ) )
        = $true )
      | ( ( disjoint @ SV21 @ SV87 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[580]) ).

thf(634,plain,
    ! [SV88: $i,SV72: $i,SV25: $i] :
      ( ( ( subset @ SV25 @ SV72 )
        = $false )
      | ( ( ~ ( subset @ SV88 @ SV72 ) )
        = $true )
      | ( ( subset @ ( set_union2 @ SV25 @ SV88 ) @ SV72 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[581]) ).

thf(635,plain,
    ! [SV46: $i,SV82: $i] :
      ( ( ( empty @ SV82 )
        = $false )
      | ( ( SV46 = SV82 )
        = $true )
      | ( ( empty @ SV46 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[587]) ).

thf(636,plain,
    ! [SV122: $i,SV94: $i] :
      ( ( ( disjoint @ SV94 @ SV122 )
        = $true )
      | ( ( in @ ( sK14_C @ SV122 @ SV94 ) @ ( set_intersection2 @ SV94 @ SV122 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[588]) ).

thf(637,plain,
    ! [SV123: $i,SV95: $i] :
      ( ( ( ! [SY269: $i] :
              ~ ( in @ SY269 @ ( set_intersection2 @ SV95 @ SV123 ) ) )
        = $true )
      | ( ( ~ ( disjoint @ SV95 @ SV123 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[589]) ).

thf(638,plain,
    ! [SV124: $i,SV96: $i] :
      ( ( ( ( SV96 = SV124 )
          | ~ ( subset @ SV96 @ SV124 ) )
        = $true )
      | ( ( proper_subset @ SV96 @ SV124 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[590]) ).

thf(639,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( proper_subset @ SX0 @ SX1 )
          | ( SX0 != SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[591]) ).

thf(640,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( proper_subset @ SX0 @ SX1 )
          | ( subset @ SX0 @ SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[592]) ).

thf(641,plain,
    ! [SV47: $i,SV125: $i,SV153: $i] :
      ( ( ~ ( ~ ( ~ ( in @ ( sK7_D @ SV153 @ SV125 @ SV47 ) @ SV47 )
                | ~ ( in @ ( sK7_D @ SV153 @ SV125 @ SV47 ) @ SV125 )
                | ~ ( in @ ( sK7_D @ SV153 @ SV125 @ SV47 ) @ SV153 ) )
            | ~ ~ ( ~ ( ( in @ ( sK7_D @ SV153 @ SV125 @ SV47 ) @ SV47 )
                      | ( in @ ( sK7_D @ SV153 @ SV125 @ SV47 ) @ SV153 ) )
                  | ~ ( ( in @ ( sK7_D @ SV153 @ SV125 @ SV47 ) @ SV125 )
                      | ( in @ ( sK7_D @ SV153 @ SV125 @ SV47 ) @ SV153 ) ) ) )
        | ( SV153
          = ( set_intersection2 @ SV47 @ SV125 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[593]) ).

thf(642,plain,
    ! [SV126: $i,SV47: $i,SV154: $i] :
      ( ( ( SV154
         != ( set_intersection2 @ SV47 @ SV126 ) )
        | ~ ( ~ ! [SY296: $i] :
                  ( ~ ( in @ SY296 @ SV47 )
                  | ~ ( in @ SY296 @ SV126 )
                  | ( in @ SY296 @ SV154 ) )
            | ~ ~ ( ~ ! [SY297: $i] :
                        ( ~ ( in @ SY297 @ SV154 )
                        | ( in @ SY297 @ SV47 ) )
                  | ~ ! [SY298: $i] :
                        ( ~ ( in @ SY298 @ SV154 )
                        | ( in @ SY298 @ SV126 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[594]) ).

thf(643,plain,
    ! [SV98: $i] :
      ( ( ( SV98 = empty_set )
        = $false )
      | ( ( ! [SY242: $i] :
              ~ ( in @ SY242 @ SV98 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[596]) ).

thf(644,plain,
    ! [SV99: $i,SV127: $i] :
      ( ( ( ~ ( ~ ( ( ( sK13_C @ SV127 @ SV99 )
                   != SV99 )
                  | ~ ( in @ ( sK13_C @ SV127 @ SV99 ) @ SV127 ) )
              | ~ ( ( ( sK13_C @ SV127 @ SV99 )
                    = SV99 )
                  | ( in @ ( sK13_C @ SV127 @ SV99 ) @ SV127 ) ) ) )
        = $true )
      | ( ( SV127
          = ( singleton @ SV99 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[597]) ).

thf(645,plain,
    ! [SV100: $i,SV128: $i] :
      ( ( ( ( SV128
           != ( singleton @ SV100 ) ) )
        = $true )
      | ( ( ~ ( ~ ! [SY275: $i] :
                    ( ( SY275 != SV100 )
                    | ( in @ SY275 @ SV128 ) )
              | ~ ! [SY276: $i] :
                    ( ~ ( in @ SY276 @ SV128 )
                    | ( SY276 = SV100 ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[598]) ).

thf(646,plain,
    ! [SV129: $i,SV101: $i] :
      ( ( ( disjoint @ SV101 @ SV129 )
        = $true )
      | ( ( ~ ( ~ ( in @ ( sK15_C @ SV129 @ SV101 ) @ SV101 )
              | ~ ( in @ ( sK15_C @ SV129 @ SV101 ) @ SV129 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[599]) ).

thf(647,plain,
    ! [SV130: $i,SV102: $i] :
      ( ( ( ! [SY277: $i] :
              ( ~ ( in @ SY277 @ SV102 )
              | ~ ( in @ SY277 @ SV130 ) ) )
        = $true )
      | ( ( ~ ( disjoint @ SV102 @ SV130 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[600]) ).

thf(648,plain,
    ! [SV48: $i,SV131: $i,SV155: $i] :
      ( ( ~ ( ~ ( ~ ( in @ ( sK6_D @ SV155 @ SV131 @ SV48 ) @ SV48 )
                | ( in @ ( sK6_D @ SV155 @ SV131 @ SV48 ) @ SV131 )
                | ~ ( in @ ( sK6_D @ SV155 @ SV131 @ SV48 ) @ SV155 ) )
            | ~ ~ ( ~ ( ( in @ ( sK6_D @ SV155 @ SV131 @ SV48 ) @ SV48 )
                      | ( in @ ( sK6_D @ SV155 @ SV131 @ SV48 ) @ SV155 ) )
                  | ~ ( ~ ( in @ ( sK6_D @ SV155 @ SV131 @ SV48 ) @ SV131 )
                      | ( in @ ( sK6_D @ SV155 @ SV131 @ SV48 ) @ SV155 ) ) ) )
        | ( SV155
          = ( set_difference @ SV48 @ SV131 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[601]) ).

thf(649,plain,
    ! [SV132: $i,SV48: $i,SV156: $i] :
      ( ( ( SV156
         != ( set_difference @ SV48 @ SV132 ) )
        | ~ ( ~ ! [SY299: $i] :
                  ( ~ ( in @ SY299 @ SV48 )
                  | ( in @ SY299 @ SV132 )
                  | ( in @ SY299 @ SV156 ) )
            | ~ ~ ( ~ ! [SY300: $i] :
                        ( ~ ( in @ SY300 @ SV156 )
                        | ( in @ SY300 @ SV48 ) )
                  | ~ ! [SY301: $i] :
                        ( ~ ( in @ SY301 @ SV156 )
                        | ~ ( in @ SY301 @ SV132 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[602]) ).

thf(650,plain,
    ! [SV133: $i,SV103: $i] :
      ( ( ( ( ( set_difference @ SV103 @ SV133 )
           != SV103 ) )
        = $true )
      | ( ( disjoint @ SV103 @ SV133 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[603]) ).

thf(651,plain,
    ! [SV134: $i,SV104: $i] :
      ( ( ( ~ ( disjoint @ SV104 @ SV134 ) )
        = $true )
      | ( ( ( set_difference @ SV104 @ SV134 )
          = SV104 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[604]) ).

thf(652,plain,
    ! [SV105: $i,SV135: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK8_C @ SV135 @ SV105 ) @ SV105 )
              | ~ ~ ( in @ ( sK8_C @ SV135 @ SV105 ) @ SV135 ) ) )
        = $true )
      | ( ( subset @ SV105 @ SV135 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[605]) ).

thf(653,plain,
    ! [SV136: $i,SV106: $i] :
      ( ( ( ~ ( subset @ SV106 @ SV136 ) )
        = $true )
      | ( ( ! [SY283: $i] :
              ( ~ ( in @ SY283 @ SV106 )
              | ( in @ SY283 @ SV136 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[606]) ).

thf(654,plain,
    ! [SV137: $i,SV107: $i] :
      ( ( ( ~ ( in @ SV107 @ SV137 ) )
        = $true )
      | ( ( subset @ ( singleton @ SV107 ) @ SV137 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[607]) ).

thf(655,plain,
    ! [SV138: $i,SV108: $i] :
      ( ( ( ~ ( subset @ ( singleton @ SV108 ) @ SV138 ) )
        = $true )
      | ( ( in @ SV108 @ SV138 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[608]) ).

thf(656,plain,
    ! [SV49: $i,SV139: $i,SV157: $i] :
      ( ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK9_D @ SV157 @ SV139 @ SV49 ) @ SV157 )
                      | ~ ( in @ ( sK9_D @ SV157 @ SV139 @ SV49 ) @ SV49 ) )
                  | ~ ( ~ ( in @ ( sK9_D @ SV157 @ SV139 @ SV49 ) @ SV157 )
                      | ~ ( in @ ( sK9_D @ SV157 @ SV139 @ SV49 ) @ SV139 ) ) )
            | ~ ( ( in @ ( sK9_D @ SV157 @ SV139 @ SV49 ) @ SV157 )
                | ( in @ ( sK9_D @ SV157 @ SV139 @ SV49 ) @ SV49 )
                | ( in @ ( sK9_D @ SV157 @ SV139 @ SV49 ) @ SV139 ) ) )
        | ( SV157
          = ( set_union2 @ SV49 @ SV139 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[609]) ).

thf(657,plain,
    ! [SV140: $i,SV49: $i,SV158: $i] :
      ( ( ( SV158
         != ( set_union2 @ SV49 @ SV140 ) )
        | ~ ( ~ ! [SY302: $i] :
                  ( ~ ( in @ SY302 @ SV158 )
                  | ( in @ SY302 @ SV49 )
                  | ( in @ SY302 @ SV140 ) )
            | ~ ~ ( ~ ! [SY303: $i] :
                        ( ~ ( in @ SY303 @ SV49 )
                        | ( in @ SY303 @ SV158 ) )
                  | ~ ! [SY304: $i] :
                        ( ~ ( in @ SY304 @ SV140 )
                        | ( in @ SY304 @ SV158 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[610]) ).

thf(658,plain,
    ! [SV141: $i,SV109: $i] :
      ( ( ( ~ ( subset @ SV109 @ SV141 )
          | ~ ( subset @ SV141 @ SV109 ) )
        = $true )
      | ( ( SV109 = SV141 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[611]) ).

thf(659,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ( SX0 != SX1 )
          | ( subset @ SX0 @ SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[612]) ).

thf(660,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ( SX0 != SX1 )
          | ( subset @ SX1 @ SX0 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[613]) ).

thf(661,plain,
    ! [SV50: $i,SV83: $i] :
      ( ( ( ~ ( in @ ( sK3_C @ SV83 @ SV50 ) @ SV50 )
          | ~ ( in @ ( sK3_C @ SV83 @ SV50 ) @ SV83 ) )
        = $true )
      | ( ( SV50 = SV83 )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[614]) ).

thf(662,plain,
    ! [SV50: $i,SV83: $i] :
      ( ( ( ( in @ ( sK3_C @ SV83 @ SV50 ) @ SV50 )
          | ( in @ ( sK3_C @ SV83 @ SV50 ) @ SV83 ) )
        = $true )
      | ( ( SV50 = SV83 )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[615]) ).

thf(663,plain,
    ! [SV110: $i,SV142: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ ( sK11_C @ SV142 @ SV110 ) @ SV142 )
                  | ~ ( subset @ ( sK11_C @ SV142 @ SV110 ) @ SV110 ) )
              | ~ ( ( in @ ( sK11_C @ SV142 @ SV110 ) @ SV142 )
                  | ( subset @ ( sK11_C @ SV142 @ SV110 ) @ SV110 ) ) ) )
        = $true )
      | ( ( SV142
          = ( powerset @ SV110 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[616]) ).

thf(664,plain,
    ! [SV111: $i,SV143: $i] :
      ( ( ( ( SV143
           != ( powerset @ SV111 ) ) )
        = $true )
      | ( ( ~ ( ~ ! [SY289: $i] :
                    ( ~ ( in @ SY289 @ SV143 )
                    | ( subset @ SY289 @ SV111 ) )
              | ~ ! [SY290: $i] :
                    ( ~ ( subset @ SY290 @ SV111 )
                    | ( in @ SY290 @ SV143 ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[617]) ).

thf(665,plain,
    ! [SV51: $i,SV144: $i,SV159: $i] :
      ( ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK10_D @ SV159 @ SV144 @ SV51 ) @ SV159 )
                      | ( ( sK10_D @ SV159 @ SV144 @ SV51 )
                       != SV51 ) )
                  | ~ ( ~ ( in @ ( sK10_D @ SV159 @ SV144 @ SV51 ) @ SV159 )
                      | ( ( sK10_D @ SV159 @ SV144 @ SV51 )
                       != SV144 ) ) )
            | ~ ( ( in @ ( sK10_D @ SV159 @ SV144 @ SV51 ) @ SV159 )
                | ( ( sK10_D @ SV159 @ SV144 @ SV51 )
                  = SV51 )
                | ( ( sK10_D @ SV159 @ SV144 @ SV51 )
                  = SV144 ) ) )
        | ( SV159
          = ( unordered_pair @ SV51 @ SV144 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[618]) ).

thf(666,plain,
    ! [SV145: $i,SV51: $i,SV160: $i] :
      ( ( ( SV160
         != ( unordered_pair @ SV51 @ SV145 ) )
        | ~ ( ~ ! [SY305: $i] :
                  ( ~ ( in @ SY305 @ SV160 )
                  | ( SY305 = SV51 )
                  | ( SY305 = SV145 ) )
            | ~ ~ ( ~ ! [SY306: $i] :
                        ( ( SY306 != SV51 )
                        | ( in @ SY306 @ SV160 ) )
                  | ~ ! [SY307: $i] :
                        ( ( SY307 != SV145 )
                        | ( in @ SY307 @ SV160 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[619]) ).

thf(667,plain,
    ! [SV146: $i,SV112: $i] :
      ( ( ( ( ( set_difference @ SV112 @ SV146 )
           != empty_set ) )
        = $true )
      | ( ( subset @ SV112 @ SV146 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[620]) ).

thf(668,plain,
    ! [SV147: $i,SV113: $i] :
      ( ( ( ~ ( subset @ SV113 @ SV147 ) )
        = $true )
      | ( ( ( set_difference @ SV113 @ SV147 )
          = empty_set )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[621]) ).

thf(669,plain,
    ! [SV148: $i,SV114: $i] :
      ( ( ( ( ( set_intersection2 @ SV114 @ SV148 )
           != empty_set ) )
        = $true )
      | ( ( disjoint @ SV114 @ SV148 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[622]) ).

thf(670,plain,
    ! [SV149: $i,SV115: $i] :
      ( ( ( ~ ( disjoint @ SV115 @ SV149 ) )
        = $true )
      | ( ( ( set_intersection2 @ SV115 @ SV149 )
          = empty_set )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[623]) ).

thf(671,plain,
    ! [SV150: $i,SV116: $i] :
      ( ( ( ( ( set_difference @ SV116 @ SV150 )
           != empty_set ) )
        = $true )
      | ( ( subset @ SV116 @ SV150 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[624]) ).

thf(672,plain,
    ! [SV151: $i,SV117: $i] :
      ( ( ( ~ ( subset @ SV117 @ SV151 ) )
        = $true )
      | ( ( ( set_difference @ SV117 @ SV151 )
          = empty_set )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[625]) ).

thf(673,plain,
    ! [SV152: $i,SV118: $i] :
      ( ( ( ~ ( subset @ SV118 @ ( singleton @ SV152 ) ) )
        = $true )
      | ( ( ( SV118 = empty_set )
          | ( SV118
            = ( singleton @ SV152 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[626]) ).

thf(674,plain,
    ( ( ! [SX0: $i] :
          ( ( SX0 != empty_set )
          | ! [SX1: $i] : ( subset @ SX0 @ ( singleton @ SX1 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[627]) ).

thf(675,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ( SX0
           != ( singleton @ SX1 ) )
          | ( subset @ SX0 @ ( singleton @ SX1 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[628]) ).

thf(676,plain,
    ! [SV92: $i,SV84: $i,SV55: $i,SV5: $i] :
      ( ( ( ( unordered_pair @ SV5 @ SV55 )
          = ( unordered_pair @ SV84 @ SV92 ) )
        = $false )
      | ( ( SV5 = SV84 )
        = $true )
      | ( ( SV5 = SV92 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[630]) ).

thf(677,plain,
    ! [SV58: $i,SV85: $i,SV8: $i] :
      ( ( ( subset @ SV8 @ SV85 )
        = $false )
      | ( ( subset @ SV8 @ SV58 )
        = $false )
      | ( ( subset @ SV8 @ ( set_intersection2 @ SV58 @ SV85 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[631]) ).

thf(678,plain,
    ! [SV9: $i,SV86: $i,SV59: $i] :
      ( ( ( subset @ SV59 @ SV86 )
        = $false )
      | ( ( subset @ SV9 @ SV59 )
        = $false )
      | ( ( subset @ SV9 @ SV86 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[632]) ).

thf(679,plain,
    ! [SV87: $i,SV69: $i,SV21: $i] :
      ( ( ( subset @ SV21 @ SV69 )
        = $false )
      | ( ( disjoint @ SV69 @ SV87 )
        = $false )
      | ( ( disjoint @ SV21 @ SV87 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[633]) ).

thf(680,plain,
    ! [SV25: $i,SV72: $i,SV88: $i] :
      ( ( ( subset @ SV88 @ SV72 )
        = $false )
      | ( ( subset @ SV25 @ SV72 )
        = $false )
      | ( ( subset @ ( set_union2 @ SV25 @ SV88 ) @ SV72 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[634]) ).

thf(681,plain,
    ! [SV123: $i,SV95: $i,SV161: $i] :
      ( ( ( ~ ( in @ SV161 @ ( set_intersection2 @ SV95 @ SV123 ) ) )
        = $true )
      | ( ( ~ ( disjoint @ SV95 @ SV123 ) )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[637]) ).

thf(682,plain,
    ! [SV124: $i,SV96: $i] :
      ( ( ( SV96 = SV124 )
        = $true )
      | ( ( ~ ( subset @ SV96 @ SV124 ) )
        = $true )
      | ( ( proper_subset @ SV96 @ SV124 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[638]) ).

thf(683,plain,
    ! [SV162: $i] :
      ( ( ! [SY308: $i] :
            ( ~ ( proper_subset @ SV162 @ SY308 )
            | ( SV162 != SY308 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[639]) ).

thf(684,plain,
    ! [SV163: $i] :
      ( ( ! [SY309: $i] :
            ( ~ ( proper_subset @ SV163 @ SY309 )
            | ( subset @ SV163 @ SY309 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[640]) ).

thf(685,plain,
    ! [SV47: $i,SV125: $i,SV153: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ ( sK7_D @ SV153 @ SV125 @ SV47 ) @ SV47 )
                  | ~ ( in @ ( sK7_D @ SV153 @ SV125 @ SV47 ) @ SV125 )
                  | ~ ( in @ ( sK7_D @ SV153 @ SV125 @ SV47 ) @ SV153 ) )
              | ~ ~ ( ~ ( ( in @ ( sK7_D @ SV153 @ SV125 @ SV47 ) @ SV47 )
                        | ( in @ ( sK7_D @ SV153 @ SV125 @ SV47 ) @ SV153 ) )
                    | ~ ( ( in @ ( sK7_D @ SV153 @ SV125 @ SV47 ) @ SV125 )
                        | ( in @ ( sK7_D @ SV153 @ SV125 @ SV47 ) @ SV153 ) ) ) ) )
        = $true )
      | ( ( SV153
          = ( set_intersection2 @ SV47 @ SV125 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[641]) ).

thf(686,plain,
    ! [SV126: $i,SV47: $i,SV154: $i] :
      ( ( ( ( SV154
           != ( set_intersection2 @ SV47 @ SV126 ) ) )
        = $true )
      | ( ( ~ ( ~ ! [SY296: $i] :
                    ( ~ ( in @ SY296 @ SV47 )
                    | ~ ( in @ SY296 @ SV126 )
                    | ( in @ SY296 @ SV154 ) )
              | ~ ~ ( ~ ! [SY297: $i] :
                          ( ~ ( in @ SY297 @ SV154 )
                          | ( in @ SY297 @ SV47 ) )
                    | ~ ! [SY298: $i] :
                          ( ~ ( in @ SY298 @ SV154 )
                          | ( in @ SY298 @ SV126 ) ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[642]) ).

thf(687,plain,
    ! [SV98: $i,SV164: $i] :
      ( ( ( ~ ( in @ SV164 @ SV98 ) )
        = $true )
      | ( ( SV98 = empty_set )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[643]) ).

thf(688,plain,
    ! [SV99: $i,SV127: $i] :
      ( ( ( ~ ( ( ( sK13_C @ SV127 @ SV99 )
               != SV99 )
              | ~ ( in @ ( sK13_C @ SV127 @ SV99 ) @ SV127 ) )
          | ~ ( ( ( sK13_C @ SV127 @ SV99 )
                = SV99 )
              | ( in @ ( sK13_C @ SV127 @ SV99 ) @ SV127 ) ) )
        = $false )
      | ( ( SV127
          = ( singleton @ SV99 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[644]) ).

thf(689,plain,
    ! [SV100: $i,SV128: $i] :
      ( ( ( SV128
          = ( singleton @ SV100 ) )
        = $false )
      | ( ( ~ ( ~ ! [SY275: $i] :
                    ( ( SY275 != SV100 )
                    | ( in @ SY275 @ SV128 ) )
              | ~ ! [SY276: $i] :
                    ( ~ ( in @ SY276 @ SV128 )
                    | ( SY276 = SV100 ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[645]) ).

thf(690,plain,
    ! [SV101: $i,SV129: $i] :
      ( ( ( ~ ( in @ ( sK15_C @ SV129 @ SV101 ) @ SV101 )
          | ~ ( in @ ( sK15_C @ SV129 @ SV101 ) @ SV129 ) )
        = $false )
      | ( ( disjoint @ SV101 @ SV129 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[646]) ).

thf(691,plain,
    ! [SV130: $i,SV102: $i,SV165: $i] :
      ( ( ( ~ ( in @ SV165 @ SV102 )
          | ~ ( in @ SV165 @ SV130 ) )
        = $true )
      | ( ( ~ ( disjoint @ SV102 @ SV130 ) )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[647]) ).

thf(692,plain,
    ! [SV48: $i,SV131: $i,SV155: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ ( sK6_D @ SV155 @ SV131 @ SV48 ) @ SV48 )
                  | ( in @ ( sK6_D @ SV155 @ SV131 @ SV48 ) @ SV131 )
                  | ~ ( in @ ( sK6_D @ SV155 @ SV131 @ SV48 ) @ SV155 ) )
              | ~ ~ ( ~ ( ( in @ ( sK6_D @ SV155 @ SV131 @ SV48 ) @ SV48 )
                        | ( in @ ( sK6_D @ SV155 @ SV131 @ SV48 ) @ SV155 ) )
                    | ~ ( ~ ( in @ ( sK6_D @ SV155 @ SV131 @ SV48 ) @ SV131 )
                        | ( in @ ( sK6_D @ SV155 @ SV131 @ SV48 ) @ SV155 ) ) ) ) )
        = $true )
      | ( ( SV155
          = ( set_difference @ SV48 @ SV131 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[648]) ).

thf(693,plain,
    ! [SV132: $i,SV48: $i,SV156: $i] :
      ( ( ( ( SV156
           != ( set_difference @ SV48 @ SV132 ) ) )
        = $true )
      | ( ( ~ ( ~ ! [SY299: $i] :
                    ( ~ ( in @ SY299 @ SV48 )
                    | ( in @ SY299 @ SV132 )
                    | ( in @ SY299 @ SV156 ) )
              | ~ ~ ( ~ ! [SY300: $i] :
                          ( ~ ( in @ SY300 @ SV156 )
                          | ( in @ SY300 @ SV48 ) )
                    | ~ ! [SY301: $i] :
                          ( ~ ( in @ SY301 @ SV156 )
                          | ~ ( in @ SY301 @ SV132 ) ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[649]) ).

thf(694,plain,
    ! [SV133: $i,SV103: $i] :
      ( ( ( ( set_difference @ SV103 @ SV133 )
          = SV103 )
        = $false )
      | ( ( disjoint @ SV103 @ SV133 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[650]) ).

thf(695,plain,
    ! [SV134: $i,SV104: $i] :
      ( ( ( disjoint @ SV104 @ SV134 )
        = $false )
      | ( ( ( set_difference @ SV104 @ SV134 )
          = SV104 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[651]) ).

thf(696,plain,
    ! [SV105: $i,SV135: $i] :
      ( ( ( ~ ( in @ ( sK8_C @ SV135 @ SV105 ) @ SV105 )
          | ~ ~ ( in @ ( sK8_C @ SV135 @ SV105 ) @ SV135 ) )
        = $false )
      | ( ( subset @ SV105 @ SV135 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[652]) ).

thf(697,plain,
    ! [SV136: $i,SV106: $i] :
      ( ( ( subset @ SV106 @ SV136 )
        = $false )
      | ( ( ! [SY283: $i] :
              ( ~ ( in @ SY283 @ SV106 )
              | ( in @ SY283 @ SV136 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[653]) ).

thf(698,plain,
    ! [SV137: $i,SV107: $i] :
      ( ( ( in @ SV107 @ SV137 )
        = $false )
      | ( ( subset @ ( singleton @ SV107 ) @ SV137 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[654]) ).

thf(699,plain,
    ! [SV138: $i,SV108: $i] :
      ( ( ( subset @ ( singleton @ SV108 ) @ SV138 )
        = $false )
      | ( ( in @ SV108 @ SV138 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[655]) ).

thf(700,plain,
    ! [SV49: $i,SV139: $i,SV157: $i] :
      ( ( ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK9_D @ SV157 @ SV139 @ SV49 ) @ SV157 )
                        | ~ ( in @ ( sK9_D @ SV157 @ SV139 @ SV49 ) @ SV49 ) )
                    | ~ ( ~ ( in @ ( sK9_D @ SV157 @ SV139 @ SV49 ) @ SV157 )
                        | ~ ( in @ ( sK9_D @ SV157 @ SV139 @ SV49 ) @ SV139 ) ) )
              | ~ ( ( in @ ( sK9_D @ SV157 @ SV139 @ SV49 ) @ SV157 )
                  | ( in @ ( sK9_D @ SV157 @ SV139 @ SV49 ) @ SV49 )
                  | ( in @ ( sK9_D @ SV157 @ SV139 @ SV49 ) @ SV139 ) ) ) )
        = $true )
      | ( ( SV157
          = ( set_union2 @ SV49 @ SV139 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[656]) ).

thf(701,plain,
    ! [SV140: $i,SV49: $i,SV158: $i] :
      ( ( ( ( SV158
           != ( set_union2 @ SV49 @ SV140 ) ) )
        = $true )
      | ( ( ~ ( ~ ! [SY302: $i] :
                    ( ~ ( in @ SY302 @ SV158 )
                    | ( in @ SY302 @ SV49 )
                    | ( in @ SY302 @ SV140 ) )
              | ~ ~ ( ~ ! [SY303: $i] :
                          ( ~ ( in @ SY303 @ SV49 )
                          | ( in @ SY303 @ SV158 ) )
                    | ~ ! [SY304: $i] :
                          ( ~ ( in @ SY304 @ SV140 )
                          | ( in @ SY304 @ SV158 ) ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[657]) ).

thf(702,plain,
    ! [SV141: $i,SV109: $i] :
      ( ( ( ~ ( subset @ SV109 @ SV141 ) )
        = $true )
      | ( ( ~ ( subset @ SV141 @ SV109 ) )
        = $true )
      | ( ( SV109 = SV141 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[658]) ).

thf(703,plain,
    ! [SV166: $i] :
      ( ( ! [SY310: $i] :
            ( ( SV166 != SY310 )
            | ( subset @ SV166 @ SY310 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[659]) ).

thf(704,plain,
    ! [SV167: $i] :
      ( ( ! [SY311: $i] :
            ( ( SV167 != SY311 )
            | ( subset @ SY311 @ SV167 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[660]) ).

thf(705,plain,
    ! [SV50: $i,SV83: $i] :
      ( ( ( ~ ( in @ ( sK3_C @ SV83 @ SV50 ) @ SV50 ) )
        = $true )
      | ( ( ~ ( in @ ( sK3_C @ SV83 @ SV50 ) @ SV83 ) )
        = $true )
      | ( ( SV50 = SV83 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[661]) ).

thf(706,plain,
    ! [SV50: $i,SV83: $i] :
      ( ( ( in @ ( sK3_C @ SV83 @ SV50 ) @ SV50 )
        = $true )
      | ( ( in @ ( sK3_C @ SV83 @ SV50 ) @ SV83 )
        = $true )
      | ( ( SV50 = SV83 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[662]) ).

thf(707,plain,
    ! [SV110: $i,SV142: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK11_C @ SV142 @ SV110 ) @ SV142 )
              | ~ ( subset @ ( sK11_C @ SV142 @ SV110 ) @ SV110 ) )
          | ~ ( ( in @ ( sK11_C @ SV142 @ SV110 ) @ SV142 )
              | ( subset @ ( sK11_C @ SV142 @ SV110 ) @ SV110 ) ) )
        = $false )
      | ( ( SV142
          = ( powerset @ SV110 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[663]) ).

thf(708,plain,
    ! [SV111: $i,SV143: $i] :
      ( ( ( SV143
          = ( powerset @ SV111 ) )
        = $false )
      | ( ( ~ ( ~ ! [SY289: $i] :
                    ( ~ ( in @ SY289 @ SV143 )
                    | ( subset @ SY289 @ SV111 ) )
              | ~ ! [SY290: $i] :
                    ( ~ ( subset @ SY290 @ SV111 )
                    | ( in @ SY290 @ SV143 ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[664]) ).

thf(709,plain,
    ! [SV51: $i,SV144: $i,SV159: $i] :
      ( ( ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK10_D @ SV159 @ SV144 @ SV51 ) @ SV159 )
                        | ( ( sK10_D @ SV159 @ SV144 @ SV51 )
                         != SV51 ) )
                    | ~ ( ~ ( in @ ( sK10_D @ SV159 @ SV144 @ SV51 ) @ SV159 )
                        | ( ( sK10_D @ SV159 @ SV144 @ SV51 )
                         != SV144 ) ) )
              | ~ ( ( in @ ( sK10_D @ SV159 @ SV144 @ SV51 ) @ SV159 )
                  | ( ( sK10_D @ SV159 @ SV144 @ SV51 )
                    = SV51 )
                  | ( ( sK10_D @ SV159 @ SV144 @ SV51 )
                    = SV144 ) ) ) )
        = $true )
      | ( ( SV159
          = ( unordered_pair @ SV51 @ SV144 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[665]) ).

thf(710,plain,
    ! [SV145: $i,SV51: $i,SV160: $i] :
      ( ( ( ( SV160
           != ( unordered_pair @ SV51 @ SV145 ) ) )
        = $true )
      | ( ( ~ ( ~ ! [SY305: $i] :
                    ( ~ ( in @ SY305 @ SV160 )
                    | ( SY305 = SV51 )
                    | ( SY305 = SV145 ) )
              | ~ ~ ( ~ ! [SY306: $i] :
                          ( ( SY306 != SV51 )
                          | ( in @ SY306 @ SV160 ) )
                    | ~ ! [SY307: $i] :
                          ( ( SY307 != SV145 )
                          | ( in @ SY307 @ SV160 ) ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[666]) ).

thf(711,plain,
    ! [SV146: $i,SV112: $i] :
      ( ( ( ( set_difference @ SV112 @ SV146 )
          = empty_set )
        = $false )
      | ( ( subset @ SV112 @ SV146 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[667]) ).

thf(712,plain,
    ! [SV147: $i,SV113: $i] :
      ( ( ( subset @ SV113 @ SV147 )
        = $false )
      | ( ( ( set_difference @ SV113 @ SV147 )
          = empty_set )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[668]) ).

thf(713,plain,
    ! [SV148: $i,SV114: $i] :
      ( ( ( ( set_intersection2 @ SV114 @ SV148 )
          = empty_set )
        = $false )
      | ( ( disjoint @ SV114 @ SV148 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[669]) ).

thf(714,plain,
    ! [SV149: $i,SV115: $i] :
      ( ( ( disjoint @ SV115 @ SV149 )
        = $false )
      | ( ( ( set_intersection2 @ SV115 @ SV149 )
          = empty_set )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[670]) ).

thf(715,plain,
    ! [SV150: $i,SV116: $i] :
      ( ( ( ( set_difference @ SV116 @ SV150 )
          = empty_set )
        = $false )
      | ( ( subset @ SV116 @ SV150 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[671]) ).

thf(716,plain,
    ! [SV151: $i,SV117: $i] :
      ( ( ( subset @ SV117 @ SV151 )
        = $false )
      | ( ( ( set_difference @ SV117 @ SV151 )
          = empty_set )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[672]) ).

thf(717,plain,
    ! [SV152: $i,SV118: $i] :
      ( ( ( subset @ SV118 @ ( singleton @ SV152 ) )
        = $false )
      | ( ( ( SV118 = empty_set )
          | ( SV118
            = ( singleton @ SV152 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[673]) ).

thf(718,plain,
    ! [SV168: $i] :
      ( ( ( SV168 != empty_set )
        | ! [SY312: $i] : ( subset @ SV168 @ ( singleton @ SY312 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[674]) ).

thf(719,plain,
    ! [SV169: $i] :
      ( ( ! [SY313: $i] :
            ( ( SV169
             != ( singleton @ SY313 ) )
            | ( subset @ SV169 @ ( singleton @ SY313 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[675]) ).

thf(720,plain,
    ! [SV123: $i,SV95: $i,SV161: $i] :
      ( ( ( in @ SV161 @ ( set_intersection2 @ SV95 @ SV123 ) )
        = $false )
      | ( ( ~ ( disjoint @ SV95 @ SV123 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[681]) ).

thf(721,plain,
    ! [SV124: $i,SV96: $i] :
      ( ( ( subset @ SV96 @ SV124 )
        = $false )
      | ( ( SV96 = SV124 )
        = $true )
      | ( ( proper_subset @ SV96 @ SV124 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[682]) ).

thf(722,plain,
    ! [SV170: $i,SV162: $i] :
      ( ( ~ ( proper_subset @ SV162 @ SV170 )
        | ( SV162 != SV170 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[683]) ).

thf(723,plain,
    ! [SV171: $i,SV163: $i] :
      ( ( ~ ( proper_subset @ SV163 @ SV171 )
        | ( subset @ SV163 @ SV171 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[684]) ).

thf(724,plain,
    ! [SV47: $i,SV125: $i,SV153: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK7_D @ SV153 @ SV125 @ SV47 ) @ SV47 )
              | ~ ( in @ ( sK7_D @ SV153 @ SV125 @ SV47 ) @ SV125 )
              | ~ ( in @ ( sK7_D @ SV153 @ SV125 @ SV47 ) @ SV153 ) )
          | ~ ~ ( ~ ( ( in @ ( sK7_D @ SV153 @ SV125 @ SV47 ) @ SV47 )
                    | ( in @ ( sK7_D @ SV153 @ SV125 @ SV47 ) @ SV153 ) )
                | ~ ( ( in @ ( sK7_D @ SV153 @ SV125 @ SV47 ) @ SV125 )
                    | ( in @ ( sK7_D @ SV153 @ SV125 @ SV47 ) @ SV153 ) ) ) )
        = $false )
      | ( ( SV153
          = ( set_intersection2 @ SV47 @ SV125 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[685]) ).

thf(725,plain,
    ! [SV126: $i,SV47: $i,SV154: $i] :
      ( ( ( SV154
          = ( set_intersection2 @ SV47 @ SV126 ) )
        = $false )
      | ( ( ~ ( ~ ! [SY296: $i] :
                    ( ~ ( in @ SY296 @ SV47 )
                    | ~ ( in @ SY296 @ SV126 )
                    | ( in @ SY296 @ SV154 ) )
              | ~ ~ ( ~ ! [SY297: $i] :
                          ( ~ ( in @ SY297 @ SV154 )
                          | ( in @ SY297 @ SV47 ) )
                    | ~ ! [SY298: $i] :
                          ( ~ ( in @ SY298 @ SV154 )
                          | ( in @ SY298 @ SV126 ) ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[686]) ).

thf(726,plain,
    ! [SV98: $i,SV164: $i] :
      ( ( ( in @ SV164 @ SV98 )
        = $false )
      | ( ( SV98 = empty_set )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[687]) ).

thf(727,plain,
    ! [SV99: $i,SV127: $i] :
      ( ( ( ~ ( ( ( sK13_C @ SV127 @ SV99 )
               != SV99 )
              | ~ ( in @ ( sK13_C @ SV127 @ SV99 ) @ SV127 ) ) )
        = $false )
      | ( ( SV127
          = ( singleton @ SV99 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[688]) ).

thf(728,plain,
    ! [SV99: $i,SV127: $i] :
      ( ( ( ~ ( ( ( sK13_C @ SV127 @ SV99 )
                = SV99 )
              | ( in @ ( sK13_C @ SV127 @ SV99 ) @ SV127 ) ) )
        = $false )
      | ( ( SV127
          = ( singleton @ SV99 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[688]) ).

thf(729,plain,
    ! [SV128: $i,SV100: $i] :
      ( ( ( ~ ! [SY275: $i] :
                ( ( SY275 != SV100 )
                | ( in @ SY275 @ SV128 ) )
          | ~ ! [SY276: $i] :
                ( ~ ( in @ SY276 @ SV128 )
                | ( SY276 = SV100 ) ) )
        = $false )
      | ( ( SV128
          = ( singleton @ SV100 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[689]) ).

thf(730,plain,
    ! [SV101: $i,SV129: $i] :
      ( ( ( ~ ( in @ ( sK15_C @ SV129 @ SV101 ) @ SV101 ) )
        = $false )
      | ( ( disjoint @ SV101 @ SV129 )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[690]) ).

thf(731,plain,
    ! [SV101: $i,SV129: $i] :
      ( ( ( ~ ( in @ ( sK15_C @ SV129 @ SV101 ) @ SV129 ) )
        = $false )
      | ( ( disjoint @ SV101 @ SV129 )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[690]) ).

thf(732,plain,
    ! [SV130: $i,SV102: $i,SV165: $i] :
      ( ( ( ~ ( in @ SV165 @ SV102 ) )
        = $true )
      | ( ( ~ ( in @ SV165 @ SV130 ) )
        = $true )
      | ( ( ~ ( disjoint @ SV102 @ SV130 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[691]) ).

thf(733,plain,
    ! [SV48: $i,SV131: $i,SV155: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK6_D @ SV155 @ SV131 @ SV48 ) @ SV48 )
              | ( in @ ( sK6_D @ SV155 @ SV131 @ SV48 ) @ SV131 )
              | ~ ( in @ ( sK6_D @ SV155 @ SV131 @ SV48 ) @ SV155 ) )
          | ~ ~ ( ~ ( ( in @ ( sK6_D @ SV155 @ SV131 @ SV48 ) @ SV48 )
                    | ( in @ ( sK6_D @ SV155 @ SV131 @ SV48 ) @ SV155 ) )
                | ~ ( ~ ( in @ ( sK6_D @ SV155 @ SV131 @ SV48 ) @ SV131 )
                    | ( in @ ( sK6_D @ SV155 @ SV131 @ SV48 ) @ SV155 ) ) ) )
        = $false )
      | ( ( SV155
          = ( set_difference @ SV48 @ SV131 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[692]) ).

thf(734,plain,
    ! [SV132: $i,SV48: $i,SV156: $i] :
      ( ( ( SV156
          = ( set_difference @ SV48 @ SV132 ) )
        = $false )
      | ( ( ~ ( ~ ! [SY299: $i] :
                    ( ~ ( in @ SY299 @ SV48 )
                    | ( in @ SY299 @ SV132 )
                    | ( in @ SY299 @ SV156 ) )
              | ~ ~ ( ~ ! [SY300: $i] :
                          ( ~ ( in @ SY300 @ SV156 )
                          | ( in @ SY300 @ SV48 ) )
                    | ~ ! [SY301: $i] :
                          ( ~ ( in @ SY301 @ SV156 )
                          | ~ ( in @ SY301 @ SV132 ) ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[693]) ).

thf(735,plain,
    ! [SV105: $i,SV135: $i] :
      ( ( ( ~ ( in @ ( sK8_C @ SV135 @ SV105 ) @ SV105 ) )
        = $false )
      | ( ( subset @ SV105 @ SV135 )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[696]) ).

thf(736,plain,
    ! [SV105: $i,SV135: $i] :
      ( ( ( ~ ~ ( in @ ( sK8_C @ SV135 @ SV105 ) @ SV135 ) )
        = $false )
      | ( ( subset @ SV105 @ SV135 )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[696]) ).

thf(737,plain,
    ! [SV136: $i,SV106: $i,SV172: $i] :
      ( ( ( ~ ( in @ SV172 @ SV106 )
          | ( in @ SV172 @ SV136 ) )
        = $true )
      | ( ( subset @ SV106 @ SV136 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[697]) ).

thf(738,plain,
    ! [SV49: $i,SV139: $i,SV157: $i] :
      ( ( ( ~ ~ ( ~ ( ~ ( in @ ( sK9_D @ SV157 @ SV139 @ SV49 ) @ SV157 )
                    | ~ ( in @ ( sK9_D @ SV157 @ SV139 @ SV49 ) @ SV49 ) )
                | ~ ( ~ ( in @ ( sK9_D @ SV157 @ SV139 @ SV49 ) @ SV157 )
                    | ~ ( in @ ( sK9_D @ SV157 @ SV139 @ SV49 ) @ SV139 ) ) )
          | ~ ( ( in @ ( sK9_D @ SV157 @ SV139 @ SV49 ) @ SV157 )
              | ( in @ ( sK9_D @ SV157 @ SV139 @ SV49 ) @ SV49 )
              | ( in @ ( sK9_D @ SV157 @ SV139 @ SV49 ) @ SV139 ) ) )
        = $false )
      | ( ( SV157
          = ( set_union2 @ SV49 @ SV139 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[700]) ).

thf(739,plain,
    ! [SV140: $i,SV49: $i,SV158: $i] :
      ( ( ( SV158
          = ( set_union2 @ SV49 @ SV140 ) )
        = $false )
      | ( ( ~ ( ~ ! [SY302: $i] :
                    ( ~ ( in @ SY302 @ SV158 )
                    | ( in @ SY302 @ SV49 )
                    | ( in @ SY302 @ SV140 ) )
              | ~ ~ ( ~ ! [SY303: $i] :
                          ( ~ ( in @ SY303 @ SV49 )
                          | ( in @ SY303 @ SV158 ) )
                    | ~ ! [SY304: $i] :
                          ( ~ ( in @ SY304 @ SV140 )
                          | ( in @ SY304 @ SV158 ) ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[701]) ).

thf(740,plain,
    ! [SV141: $i,SV109: $i] :
      ( ( ( subset @ SV109 @ SV141 )
        = $false )
      | ( ( ~ ( subset @ SV141 @ SV109 ) )
        = $true )
      | ( ( SV109 = SV141 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[702]) ).

thf(741,plain,
    ! [SV173: $i,SV166: $i] :
      ( ( ( SV166 != SV173 )
        | ( subset @ SV166 @ SV173 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[703]) ).

thf(742,plain,
    ! [SV174: $i,SV167: $i] :
      ( ( ( SV167 != SV174 )
        | ( subset @ SV174 @ SV167 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[704]) ).

thf(743,plain,
    ! [SV50: $i,SV83: $i] :
      ( ( ( in @ ( sK3_C @ SV83 @ SV50 ) @ SV50 )
        = $false )
      | ( ( ~ ( in @ ( sK3_C @ SV83 @ SV50 ) @ SV83 ) )
        = $true )
      | ( ( SV50 = SV83 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[705]) ).

thf(744,plain,
    ! [SV110: $i,SV142: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK11_C @ SV142 @ SV110 ) @ SV142 )
              | ~ ( subset @ ( sK11_C @ SV142 @ SV110 ) @ SV110 ) ) )
        = $false )
      | ( ( SV142
          = ( powerset @ SV110 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[707]) ).

thf(745,plain,
    ! [SV110: $i,SV142: $i] :
      ( ( ( ~ ( ( in @ ( sK11_C @ SV142 @ SV110 ) @ SV142 )
              | ( subset @ ( sK11_C @ SV142 @ SV110 ) @ SV110 ) ) )
        = $false )
      | ( ( SV142
          = ( powerset @ SV110 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[707]) ).

thf(746,plain,
    ! [SV111: $i,SV143: $i] :
      ( ( ( ~ ! [SY289: $i] :
                ( ~ ( in @ SY289 @ SV143 )
                | ( subset @ SY289 @ SV111 ) )
          | ~ ! [SY290: $i] :
                ( ~ ( subset @ SY290 @ SV111 )
                | ( in @ SY290 @ SV143 ) ) )
        = $false )
      | ( ( SV143
          = ( powerset @ SV111 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[708]) ).

thf(747,plain,
    ! [SV51: $i,SV144: $i,SV159: $i] :
      ( ( ( ~ ~ ( ~ ( ~ ( in @ ( sK10_D @ SV159 @ SV144 @ SV51 ) @ SV159 )
                    | ( ( sK10_D @ SV159 @ SV144 @ SV51 )
                     != SV51 ) )
                | ~ ( ~ ( in @ ( sK10_D @ SV159 @ SV144 @ SV51 ) @ SV159 )
                    | ( ( sK10_D @ SV159 @ SV144 @ SV51 )
                     != SV144 ) ) )
          | ~ ( ( in @ ( sK10_D @ SV159 @ SV144 @ SV51 ) @ SV159 )
              | ( ( sK10_D @ SV159 @ SV144 @ SV51 )
                = SV51 )
              | ( ( sK10_D @ SV159 @ SV144 @ SV51 )
                = SV144 ) ) )
        = $false )
      | ( ( SV159
          = ( unordered_pair @ SV51 @ SV144 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[709]) ).

thf(748,plain,
    ! [SV145: $i,SV51: $i,SV160: $i] :
      ( ( ( SV160
          = ( unordered_pair @ SV51 @ SV145 ) )
        = $false )
      | ( ( ~ ( ~ ! [SY305: $i] :
                    ( ~ ( in @ SY305 @ SV160 )
                    | ( SY305 = SV51 )
                    | ( SY305 = SV145 ) )
              | ~ ~ ( ~ ! [SY306: $i] :
                          ( ( SY306 != SV51 )
                          | ( in @ SY306 @ SV160 ) )
                    | ~ ! [SY307: $i] :
                          ( ( SY307 != SV145 )
                          | ( in @ SY307 @ SV160 ) ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[710]) ).

thf(749,plain,
    ! [SV152: $i,SV118: $i] :
      ( ( ( SV118 = empty_set )
        = $true )
      | ( ( SV118
          = ( singleton @ SV152 ) )
        = $true )
      | ( ( subset @ SV118 @ ( singleton @ SV152 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[717]) ).

thf(750,plain,
    ! [SV168: $i] :
      ( ( ( ( SV168 != empty_set ) )
        = $true )
      | ( ( ! [SY312: $i] : ( subset @ SV168 @ ( singleton @ SY312 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[718]) ).

thf(751,plain,
    ! [SV175: $i,SV169: $i] :
      ( ( ( SV169
         != ( singleton @ SV175 ) )
        | ( subset @ SV169 @ ( singleton @ SV175 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[719]) ).

thf(752,plain,
    ! [SV161: $i,SV123: $i,SV95: $i] :
      ( ( ( disjoint @ SV95 @ SV123 )
        = $false )
      | ( ( in @ SV161 @ ( set_intersection2 @ SV95 @ SV123 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[720]) ).

thf(753,plain,
    ! [SV170: $i,SV162: $i] :
      ( ( ( ~ ( proper_subset @ SV162 @ SV170 ) )
        = $true )
      | ( ( ( SV162 != SV170 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[722]) ).

thf(754,plain,
    ! [SV171: $i,SV163: $i] :
      ( ( ( ~ ( proper_subset @ SV163 @ SV171 ) )
        = $true )
      | ( ( subset @ SV163 @ SV171 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[723]) ).

thf(755,plain,
    ! [SV47: $i,SV125: $i,SV153: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK7_D @ SV153 @ SV125 @ SV47 ) @ SV47 )
              | ~ ( in @ ( sK7_D @ SV153 @ SV125 @ SV47 ) @ SV125 )
              | ~ ( in @ ( sK7_D @ SV153 @ SV125 @ SV47 ) @ SV153 ) ) )
        = $false )
      | ( ( SV153
          = ( set_intersection2 @ SV47 @ SV125 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[724]) ).

thf(756,plain,
    ! [SV47: $i,SV125: $i,SV153: $i] :
      ( ( ( ~ ~ ( ~ ( ( in @ ( sK7_D @ SV153 @ SV125 @ SV47 ) @ SV47 )
                    | ( in @ ( sK7_D @ SV153 @ SV125 @ SV47 ) @ SV153 ) )
                | ~ ( ( in @ ( sK7_D @ SV153 @ SV125 @ SV47 ) @ SV125 )
                    | ( in @ ( sK7_D @ SV153 @ SV125 @ SV47 ) @ SV153 ) ) ) )
        = $false )
      | ( ( SV153
          = ( set_intersection2 @ SV47 @ SV125 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[724]) ).

thf(757,plain,
    ! [SV154: $i,SV126: $i,SV47: $i] :
      ( ( ( ~ ! [SY296: $i] :
                ( ~ ( in @ SY296 @ SV47 )
                | ~ ( in @ SY296 @ SV126 )
                | ( in @ SY296 @ SV154 ) )
          | ~ ~ ( ~ ! [SY297: $i] :
                      ( ~ ( in @ SY297 @ SV154 )
                      | ( in @ SY297 @ SV47 ) )
                | ~ ! [SY298: $i] :
                      ( ~ ( in @ SY298 @ SV154 )
                      | ( in @ SY298 @ SV126 ) ) ) )
        = $false )
      | ( ( SV154
          = ( set_intersection2 @ SV47 @ SV126 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[725]) ).

thf(758,plain,
    ! [SV99: $i,SV127: $i] :
      ( ( ( ( ( sK13_C @ SV127 @ SV99 )
           != SV99 )
          | ~ ( in @ ( sK13_C @ SV127 @ SV99 ) @ SV127 ) )
        = $true )
      | ( ( SV127
          = ( singleton @ SV99 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[727]) ).

thf(759,plain,
    ! [SV99: $i,SV127: $i] :
      ( ( ( ( ( sK13_C @ SV127 @ SV99 )
            = SV99 )
          | ( in @ ( sK13_C @ SV127 @ SV99 ) @ SV127 ) )
        = $true )
      | ( ( SV127
          = ( singleton @ SV99 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[728]) ).

thf(760,plain,
    ! [SV128: $i,SV100: $i] :
      ( ( ( ~ ! [SY275: $i] :
                ( ( SY275 != SV100 )
                | ( in @ SY275 @ SV128 ) ) )
        = $false )
      | ( ( SV128
          = ( singleton @ SV100 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[729]) ).

thf(761,plain,
    ! [SV100: $i,SV128: $i] :
      ( ( ( ~ ! [SY276: $i] :
                ( ~ ( in @ SY276 @ SV128 )
                | ( SY276 = SV100 ) ) )
        = $false )
      | ( ( SV128
          = ( singleton @ SV100 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[729]) ).

thf(762,plain,
    ! [SV101: $i,SV129: $i] :
      ( ( ( in @ ( sK15_C @ SV129 @ SV101 ) @ SV101 )
        = $true )
      | ( ( disjoint @ SV101 @ SV129 )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[730]) ).

thf(763,plain,
    ! [SV101: $i,SV129: $i] :
      ( ( ( in @ ( sK15_C @ SV129 @ SV101 ) @ SV129 )
        = $true )
      | ( ( disjoint @ SV101 @ SV129 )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[731]) ).

thf(764,plain,
    ! [SV130: $i,SV102: $i,SV165: $i] :
      ( ( ( in @ SV165 @ SV102 )
        = $false )
      | ( ( ~ ( in @ SV165 @ SV130 ) )
        = $true )
      | ( ( ~ ( disjoint @ SV102 @ SV130 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[732]) ).

thf(765,plain,
    ! [SV48: $i,SV131: $i,SV155: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK6_D @ SV155 @ SV131 @ SV48 ) @ SV48 )
              | ( in @ ( sK6_D @ SV155 @ SV131 @ SV48 ) @ SV131 )
              | ~ ( in @ ( sK6_D @ SV155 @ SV131 @ SV48 ) @ SV155 ) ) )
        = $false )
      | ( ( SV155
          = ( set_difference @ SV48 @ SV131 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[733]) ).

thf(766,plain,
    ! [SV48: $i,SV131: $i,SV155: $i] :
      ( ( ( ~ ~ ( ~ ( ( in @ ( sK6_D @ SV155 @ SV131 @ SV48 ) @ SV48 )
                    | ( in @ ( sK6_D @ SV155 @ SV131 @ SV48 ) @ SV155 ) )
                | ~ ( ~ ( in @ ( sK6_D @ SV155 @ SV131 @ SV48 ) @ SV131 )
                    | ( in @ ( sK6_D @ SV155 @ SV131 @ SV48 ) @ SV155 ) ) ) )
        = $false )
      | ( ( SV155
          = ( set_difference @ SV48 @ SV131 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[733]) ).

thf(767,plain,
    ! [SV156: $i,SV132: $i,SV48: $i] :
      ( ( ( ~ ! [SY299: $i] :
                ( ~ ( in @ SY299 @ SV48 )
                | ( in @ SY299 @ SV132 )
                | ( in @ SY299 @ SV156 ) )
          | ~ ~ ( ~ ! [SY300: $i] :
                      ( ~ ( in @ SY300 @ SV156 )
                      | ( in @ SY300 @ SV48 ) )
                | ~ ! [SY301: $i] :
                      ( ~ ( in @ SY301 @ SV156 )
                      | ~ ( in @ SY301 @ SV132 ) ) ) )
        = $false )
      | ( ( SV156
          = ( set_difference @ SV48 @ SV132 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[734]) ).

thf(768,plain,
    ! [SV105: $i,SV135: $i] :
      ( ( ( in @ ( sK8_C @ SV135 @ SV105 ) @ SV105 )
        = $true )
      | ( ( subset @ SV105 @ SV135 )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[735]) ).

thf(769,plain,
    ! [SV105: $i,SV135: $i] :
      ( ( ( ~ ( in @ ( sK8_C @ SV135 @ SV105 ) @ SV135 ) )
        = $true )
      | ( ( subset @ SV105 @ SV135 )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[736]) ).

thf(770,plain,
    ! [SV136: $i,SV106: $i,SV172: $i] :
      ( ( ( ~ ( in @ SV172 @ SV106 ) )
        = $true )
      | ( ( in @ SV172 @ SV136 )
        = $true )
      | ( ( subset @ SV106 @ SV136 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[737]) ).

thf(771,plain,
    ! [SV49: $i,SV139: $i,SV157: $i] :
      ( ( ( ~ ~ ( ~ ( ~ ( in @ ( sK9_D @ SV157 @ SV139 @ SV49 ) @ SV157 )
                    | ~ ( in @ ( sK9_D @ SV157 @ SV139 @ SV49 ) @ SV49 ) )
                | ~ ( ~ ( in @ ( sK9_D @ SV157 @ SV139 @ SV49 ) @ SV157 )
                    | ~ ( in @ ( sK9_D @ SV157 @ SV139 @ SV49 ) @ SV139 ) ) ) )
        = $false )
      | ( ( SV157
          = ( set_union2 @ SV49 @ SV139 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[738]) ).

thf(772,plain,
    ! [SV49: $i,SV139: $i,SV157: $i] :
      ( ( ( ~ ( ( in @ ( sK9_D @ SV157 @ SV139 @ SV49 ) @ SV157 )
              | ( in @ ( sK9_D @ SV157 @ SV139 @ SV49 ) @ SV49 )
              | ( in @ ( sK9_D @ SV157 @ SV139 @ SV49 ) @ SV139 ) ) )
        = $false )
      | ( ( SV157
          = ( set_union2 @ SV49 @ SV139 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[738]) ).

thf(773,plain,
    ! [SV140: $i,SV49: $i,SV158: $i] :
      ( ( ( ~ ! [SY302: $i] :
                ( ~ ( in @ SY302 @ SV158 )
                | ( in @ SY302 @ SV49 )
                | ( in @ SY302 @ SV140 ) )
          | ~ ~ ( ~ ! [SY303: $i] :
                      ( ~ ( in @ SY303 @ SV49 )
                      | ( in @ SY303 @ SV158 ) )
                | ~ ! [SY304: $i] :
                      ( ~ ( in @ SY304 @ SV140 )
                      | ( in @ SY304 @ SV158 ) ) ) )
        = $false )
      | ( ( SV158
          = ( set_union2 @ SV49 @ SV140 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[739]) ).

thf(774,plain,
    ! [SV109: $i,SV141: $i] :
      ( ( ( subset @ SV141 @ SV109 )
        = $false )
      | ( ( subset @ SV109 @ SV141 )
        = $false )
      | ( ( SV109 = SV141 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[740]) ).

thf(775,plain,
    ! [SV173: $i,SV166: $i] :
      ( ( ( ( SV166 != SV173 ) )
        = $true )
      | ( ( subset @ SV166 @ SV173 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[741]) ).

thf(776,plain,
    ! [SV174: $i,SV167: $i] :
      ( ( ( ( SV167 != SV174 ) )
        = $true )
      | ( ( subset @ SV174 @ SV167 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[742]) ).

thf(777,plain,
    ! [SV50: $i,SV83: $i] :
      ( ( ( in @ ( sK3_C @ SV83 @ SV50 ) @ SV83 )
        = $false )
      | ( ( in @ ( sK3_C @ SV83 @ SV50 ) @ SV50 )
        = $false )
      | ( ( SV50 = SV83 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[743]) ).

thf(778,plain,
    ! [SV110: $i,SV142: $i] :
      ( ( ( ~ ( in @ ( sK11_C @ SV142 @ SV110 ) @ SV142 )
          | ~ ( subset @ ( sK11_C @ SV142 @ SV110 ) @ SV110 ) )
        = $true )
      | ( ( SV142
          = ( powerset @ SV110 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[744]) ).

thf(779,plain,
    ! [SV110: $i,SV142: $i] :
      ( ( ( ( in @ ( sK11_C @ SV142 @ SV110 ) @ SV142 )
          | ( subset @ ( sK11_C @ SV142 @ SV110 ) @ SV110 ) )
        = $true )
      | ( ( SV142
          = ( powerset @ SV110 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[745]) ).

thf(780,plain,
    ! [SV111: $i,SV143: $i] :
      ( ( ( ~ ! [SY289: $i] :
                ( ~ ( in @ SY289 @ SV143 )
                | ( subset @ SY289 @ SV111 ) ) )
        = $false )
      | ( ( SV143
          = ( powerset @ SV111 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[746]) ).

thf(781,plain,
    ! [SV143: $i,SV111: $i] :
      ( ( ( ~ ! [SY290: $i] :
                ( ~ ( subset @ SY290 @ SV111 )
                | ( in @ SY290 @ SV143 ) ) )
        = $false )
      | ( ( SV143
          = ( powerset @ SV111 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[746]) ).

thf(782,plain,
    ! [SV51: $i,SV144: $i,SV159: $i] :
      ( ( ( ~ ~ ( ~ ( ~ ( in @ ( sK10_D @ SV159 @ SV144 @ SV51 ) @ SV159 )
                    | ( ( sK10_D @ SV159 @ SV144 @ SV51 )
                     != SV51 ) )
                | ~ ( ~ ( in @ ( sK10_D @ SV159 @ SV144 @ SV51 ) @ SV159 )
                    | ( ( sK10_D @ SV159 @ SV144 @ SV51 )
                     != SV144 ) ) ) )
        = $false )
      | ( ( SV159
          = ( unordered_pair @ SV51 @ SV144 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[747]) ).

thf(783,plain,
    ! [SV51: $i,SV144: $i,SV159: $i] :
      ( ( ( ~ ( ( in @ ( sK10_D @ SV159 @ SV144 @ SV51 ) @ SV159 )
              | ( ( sK10_D @ SV159 @ SV144 @ SV51 )
                = SV51 )
              | ( ( sK10_D @ SV159 @ SV144 @ SV51 )
                = SV144 ) ) )
        = $false )
      | ( ( SV159
          = ( unordered_pair @ SV51 @ SV144 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[747]) ).

thf(784,plain,
    ! [SV145: $i,SV51: $i,SV160: $i] :
      ( ( ( ~ ! [SY305: $i] :
                ( ~ ( in @ SY305 @ SV160 )
                | ( SY305 = SV51 )
                | ( SY305 = SV145 ) )
          | ~ ~ ( ~ ! [SY306: $i] :
                      ( ( SY306 != SV51 )
                      | ( in @ SY306 @ SV160 ) )
                | ~ ! [SY307: $i] :
                      ( ( SY307 != SV145 )
                      | ( in @ SY307 @ SV160 ) ) ) )
        = $false )
      | ( ( SV160
          = ( unordered_pair @ SV51 @ SV145 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[748]) ).

thf(785,plain,
    ! [SV168: $i] :
      ( ( ( SV168 = empty_set )
        = $false )
      | ( ( ! [SY312: $i] : ( subset @ SV168 @ ( singleton @ SY312 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[750]) ).

thf(786,plain,
    ! [SV175: $i,SV169: $i] :
      ( ( ( ( SV169
           != ( singleton @ SV175 ) ) )
        = $true )
      | ( ( subset @ SV169 @ ( singleton @ SV175 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[751]) ).

thf(787,plain,
    ! [SV170: $i,SV162: $i] :
      ( ( ( proper_subset @ SV162 @ SV170 )
        = $false )
      | ( ( ( SV162 != SV170 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[753]) ).

thf(788,plain,
    ! [SV171: $i,SV163: $i] :
      ( ( ( proper_subset @ SV163 @ SV171 )
        = $false )
      | ( ( subset @ SV163 @ SV171 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[754]) ).

thf(789,plain,
    ! [SV47: $i,SV125: $i,SV153: $i] :
      ( ( ( ~ ( in @ ( sK7_D @ SV153 @ SV125 @ SV47 ) @ SV47 )
          | ~ ( in @ ( sK7_D @ SV153 @ SV125 @ SV47 ) @ SV125 )
          | ~ ( in @ ( sK7_D @ SV153 @ SV125 @ SV47 ) @ SV153 ) )
        = $true )
      | ( ( SV153
          = ( set_intersection2 @ SV47 @ SV125 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[755]) ).

thf(790,plain,
    ! [SV47: $i,SV125: $i,SV153: $i] :
      ( ( ( ~ ( ~ ( ( in @ ( sK7_D @ SV153 @ SV125 @ SV47 ) @ SV47 )
                  | ( in @ ( sK7_D @ SV153 @ SV125 @ SV47 ) @ SV153 ) )
              | ~ ( ( in @ ( sK7_D @ SV153 @ SV125 @ SV47 ) @ SV125 )
                  | ( in @ ( sK7_D @ SV153 @ SV125 @ SV47 ) @ SV153 ) ) ) )
        = $true )
      | ( ( SV153
          = ( set_intersection2 @ SV47 @ SV125 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[756]) ).

thf(791,plain,
    ! [SV154: $i,SV126: $i,SV47: $i] :
      ( ( ( ~ ! [SY296: $i] :
                ( ~ ( in @ SY296 @ SV47 )
                | ~ ( in @ SY296 @ SV126 )
                | ( in @ SY296 @ SV154 ) ) )
        = $false )
      | ( ( SV154
          = ( set_intersection2 @ SV47 @ SV126 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[757]) ).

thf(792,plain,
    ! [SV126: $i,SV47: $i,SV154: $i] :
      ( ( ( ~ ~ ( ~ ! [SY297: $i] :
                      ( ~ ( in @ SY297 @ SV154 )
                      | ( in @ SY297 @ SV47 ) )
                | ~ ! [SY298: $i] :
                      ( ~ ( in @ SY298 @ SV154 )
                      | ( in @ SY298 @ SV126 ) ) ) )
        = $false )
      | ( ( SV154
          = ( set_intersection2 @ SV47 @ SV126 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[757]) ).

thf(793,plain,
    ! [SV99: $i,SV127: $i] :
      ( ( ( ( ( sK13_C @ SV127 @ SV99 )
           != SV99 ) )
        = $true )
      | ( ( ~ ( in @ ( sK13_C @ SV127 @ SV99 ) @ SV127 ) )
        = $true )
      | ( ( SV127
          = ( singleton @ SV99 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[758]) ).

thf(794,plain,
    ! [SV99: $i,SV127: $i] :
      ( ( ( ( sK13_C @ SV127 @ SV99 )
          = SV99 )
        = $true )
      | ( ( in @ ( sK13_C @ SV127 @ SV99 ) @ SV127 )
        = $true )
      | ( ( SV127
          = ( singleton @ SV99 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[759]) ).

thf(795,plain,
    ! [SV128: $i,SV100: $i] :
      ( ( ( ! [SY275: $i] :
              ( ( SY275 != SV100 )
              | ( in @ SY275 @ SV128 ) ) )
        = $true )
      | ( ( SV128
          = ( singleton @ SV100 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[760]) ).

thf(796,plain,
    ! [SV100: $i,SV128: $i] :
      ( ( ( ! [SY276: $i] :
              ( ~ ( in @ SY276 @ SV128 )
              | ( SY276 = SV100 ) ) )
        = $true )
      | ( ( SV128
          = ( singleton @ SV100 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[761]) ).

thf(797,plain,
    ! [SV102: $i,SV130: $i,SV165: $i] :
      ( ( ( in @ SV165 @ SV130 )
        = $false )
      | ( ( in @ SV165 @ SV102 )
        = $false )
      | ( ( ~ ( disjoint @ SV102 @ SV130 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[764]) ).

thf(798,plain,
    ! [SV48: $i,SV131: $i,SV155: $i] :
      ( ( ( ~ ( in @ ( sK6_D @ SV155 @ SV131 @ SV48 ) @ SV48 )
          | ( in @ ( sK6_D @ SV155 @ SV131 @ SV48 ) @ SV131 )
          | ~ ( in @ ( sK6_D @ SV155 @ SV131 @ SV48 ) @ SV155 ) )
        = $true )
      | ( ( SV155
          = ( set_difference @ SV48 @ SV131 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[765]) ).

thf(799,plain,
    ! [SV48: $i,SV131: $i,SV155: $i] :
      ( ( ( ~ ( ~ ( ( in @ ( sK6_D @ SV155 @ SV131 @ SV48 ) @ SV48 )
                  | ( in @ ( sK6_D @ SV155 @ SV131 @ SV48 ) @ SV155 ) )
              | ~ ( ~ ( in @ ( sK6_D @ SV155 @ SV131 @ SV48 ) @ SV131 )
                  | ( in @ ( sK6_D @ SV155 @ SV131 @ SV48 ) @ SV155 ) ) ) )
        = $true )
      | ( ( SV155
          = ( set_difference @ SV48 @ SV131 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[766]) ).

thf(800,plain,
    ! [SV156: $i,SV132: $i,SV48: $i] :
      ( ( ( ~ ! [SY299: $i] :
                ( ~ ( in @ SY299 @ SV48 )
                | ( in @ SY299 @ SV132 )
                | ( in @ SY299 @ SV156 ) ) )
        = $false )
      | ( ( SV156
          = ( set_difference @ SV48 @ SV132 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[767]) ).

thf(801,plain,
    ! [SV132: $i,SV48: $i,SV156: $i] :
      ( ( ( ~ ~ ( ~ ! [SY300: $i] :
                      ( ~ ( in @ SY300 @ SV156 )
                      | ( in @ SY300 @ SV48 ) )
                | ~ ! [SY301: $i] :
                      ( ~ ( in @ SY301 @ SV156 )
                      | ~ ( in @ SY301 @ SV132 ) ) ) )
        = $false )
      | ( ( SV156
          = ( set_difference @ SV48 @ SV132 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[767]) ).

thf(802,plain,
    ! [SV105: $i,SV135: $i] :
      ( ( ( in @ ( sK8_C @ SV135 @ SV105 ) @ SV135 )
        = $false )
      | ( ( subset @ SV105 @ SV135 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[769]) ).

thf(803,plain,
    ! [SV136: $i,SV106: $i,SV172: $i] :
      ( ( ( in @ SV172 @ SV106 )
        = $false )
      | ( ( in @ SV172 @ SV136 )
        = $true )
      | ( ( subset @ SV106 @ SV136 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[770]) ).

thf(804,plain,
    ! [SV49: $i,SV139: $i,SV157: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ ( sK9_D @ SV157 @ SV139 @ SV49 ) @ SV157 )
                  | ~ ( in @ ( sK9_D @ SV157 @ SV139 @ SV49 ) @ SV49 ) )
              | ~ ( ~ ( in @ ( sK9_D @ SV157 @ SV139 @ SV49 ) @ SV157 )
                  | ~ ( in @ ( sK9_D @ SV157 @ SV139 @ SV49 ) @ SV139 ) ) ) )
        = $true )
      | ( ( SV157
          = ( set_union2 @ SV49 @ SV139 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[771]) ).

thf(805,plain,
    ! [SV49: $i,SV139: $i,SV157: $i] :
      ( ( ( ( in @ ( sK9_D @ SV157 @ SV139 @ SV49 ) @ SV157 )
          | ( in @ ( sK9_D @ SV157 @ SV139 @ SV49 ) @ SV49 )
          | ( in @ ( sK9_D @ SV157 @ SV139 @ SV49 ) @ SV139 ) )
        = $true )
      | ( ( SV157
          = ( set_union2 @ SV49 @ SV139 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[772]) ).

thf(806,plain,
    ! [SV140: $i,SV49: $i,SV158: $i] :
      ( ( ( ~ ! [SY302: $i] :
                ( ~ ( in @ SY302 @ SV158 )
                | ( in @ SY302 @ SV49 )
                | ( in @ SY302 @ SV140 ) ) )
        = $false )
      | ( ( SV158
          = ( set_union2 @ SV49 @ SV140 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[773]) ).

thf(807,plain,
    ! [SV140: $i,SV158: $i,SV49: $i] :
      ( ( ( ~ ~ ( ~ ! [SY303: $i] :
                      ( ~ ( in @ SY303 @ SV49 )
                      | ( in @ SY303 @ SV158 ) )
                | ~ ! [SY304: $i] :
                      ( ~ ( in @ SY304 @ SV140 )
                      | ( in @ SY304 @ SV158 ) ) ) )
        = $false )
      | ( ( SV158
          = ( set_union2 @ SV49 @ SV140 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[773]) ).

thf(808,plain,
    ! [SV173: $i,SV166: $i] :
      ( ( ( SV166 = SV173 )
        = $false )
      | ( ( subset @ SV166 @ SV173 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[775]) ).

thf(809,plain,
    ! [SV174: $i,SV167: $i] :
      ( ( ( SV167 = SV174 )
        = $false )
      | ( ( subset @ SV174 @ SV167 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[776]) ).

thf(810,plain,
    ! [SV110: $i,SV142: $i] :
      ( ( ( ~ ( in @ ( sK11_C @ SV142 @ SV110 ) @ SV142 ) )
        = $true )
      | ( ( ~ ( subset @ ( sK11_C @ SV142 @ SV110 ) @ SV110 ) )
        = $true )
      | ( ( SV142
          = ( powerset @ SV110 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[778]) ).

thf(811,plain,
    ! [SV110: $i,SV142: $i] :
      ( ( ( in @ ( sK11_C @ SV142 @ SV110 ) @ SV142 )
        = $true )
      | ( ( subset @ ( sK11_C @ SV142 @ SV110 ) @ SV110 )
        = $true )
      | ( ( SV142
          = ( powerset @ SV110 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[779]) ).

thf(812,plain,
    ! [SV111: $i,SV143: $i] :
      ( ( ( ! [SY289: $i] :
              ( ~ ( in @ SY289 @ SV143 )
              | ( subset @ SY289 @ SV111 ) ) )
        = $true )
      | ( ( SV143
          = ( powerset @ SV111 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[780]) ).

thf(813,plain,
    ! [SV143: $i,SV111: $i] :
      ( ( ( ! [SY290: $i] :
              ( ~ ( subset @ SY290 @ SV111 )
              | ( in @ SY290 @ SV143 ) ) )
        = $true )
      | ( ( SV143
          = ( powerset @ SV111 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[781]) ).

thf(814,plain,
    ! [SV51: $i,SV144: $i,SV159: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ ( sK10_D @ SV159 @ SV144 @ SV51 ) @ SV159 )
                  | ( ( sK10_D @ SV159 @ SV144 @ SV51 )
                   != SV51 ) )
              | ~ ( ~ ( in @ ( sK10_D @ SV159 @ SV144 @ SV51 ) @ SV159 )
                  | ( ( sK10_D @ SV159 @ SV144 @ SV51 )
                   != SV144 ) ) ) )
        = $true )
      | ( ( SV159
          = ( unordered_pair @ SV51 @ SV144 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[782]) ).

thf(815,plain,
    ! [SV51: $i,SV144: $i,SV159: $i] :
      ( ( ( ( in @ ( sK10_D @ SV159 @ SV144 @ SV51 ) @ SV159 )
          | ( ( sK10_D @ SV159 @ SV144 @ SV51 )
            = SV51 )
          | ( ( sK10_D @ SV159 @ SV144 @ SV51 )
            = SV144 ) )
        = $true )
      | ( ( SV159
          = ( unordered_pair @ SV51 @ SV144 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[783]) ).

thf(816,plain,
    ! [SV145: $i,SV51: $i,SV160: $i] :
      ( ( ( ~ ! [SY305: $i] :
                ( ~ ( in @ SY305 @ SV160 )
                | ( SY305 = SV51 )
                | ( SY305 = SV145 ) ) )
        = $false )
      | ( ( SV160
          = ( unordered_pair @ SV51 @ SV145 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[784]) ).

thf(817,plain,
    ! [SV145: $i,SV160: $i,SV51: $i] :
      ( ( ( ~ ~ ( ~ ! [SY306: $i] :
                      ( ( SY306 != SV51 )
                      | ( in @ SY306 @ SV160 ) )
                | ~ ! [SY307: $i] :
                      ( ( SY307 != SV145 )
                      | ( in @ SY307 @ SV160 ) ) ) )
        = $false )
      | ( ( SV160
          = ( unordered_pair @ SV51 @ SV145 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[784]) ).

thf(818,plain,
    ! [SV176: $i,SV168: $i] :
      ( ( ( subset @ SV168 @ ( singleton @ SV176 ) )
        = $true )
      | ( ( SV168 = empty_set )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[785]) ).

thf(819,plain,
    ! [SV175: $i,SV169: $i] :
      ( ( ( SV169
          = ( singleton @ SV175 ) )
        = $false )
      | ( ( subset @ SV169 @ ( singleton @ SV175 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[786]) ).

thf(820,plain,
    ! [SV170: $i,SV162: $i] :
      ( ( ( SV162 = SV170 )
        = $false )
      | ( ( proper_subset @ SV162 @ SV170 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[787]) ).

thf(821,plain,
    ! [SV47: $i,SV125: $i,SV153: $i] :
      ( ( ( ~ ( in @ ( sK7_D @ SV153 @ SV125 @ SV47 ) @ SV47 )
          | ~ ( in @ ( sK7_D @ SV153 @ SV125 @ SV47 ) @ SV125 ) )
        = $true )
      | ( ( ~ ( in @ ( sK7_D @ SV153 @ SV125 @ SV47 ) @ SV153 ) )
        = $true )
      | ( ( SV153
          = ( set_intersection2 @ SV47 @ SV125 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[789]) ).

thf(822,plain,
    ! [SV47: $i,SV125: $i,SV153: $i] :
      ( ( ( ~ ( ( in @ ( sK7_D @ SV153 @ SV125 @ SV47 ) @ SV47 )
              | ( in @ ( sK7_D @ SV153 @ SV125 @ SV47 ) @ SV153 ) )
          | ~ ( ( in @ ( sK7_D @ SV153 @ SV125 @ SV47 ) @ SV125 )
              | ( in @ ( sK7_D @ SV153 @ SV125 @ SV47 ) @ SV153 ) ) )
        = $false )
      | ( ( SV153
          = ( set_intersection2 @ SV47 @ SV125 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[790]) ).

thf(823,plain,
    ! [SV154: $i,SV126: $i,SV47: $i] :
      ( ( ( ! [SY296: $i] :
              ( ~ ( in @ SY296 @ SV47 )
              | ~ ( in @ SY296 @ SV126 )
              | ( in @ SY296 @ SV154 ) ) )
        = $true )
      | ( ( SV154
          = ( set_intersection2 @ SV47 @ SV126 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[791]) ).

thf(824,plain,
    ! [SV126: $i,SV47: $i,SV154: $i] :
      ( ( ( ~ ( ~ ! [SY297: $i] :
                    ( ~ ( in @ SY297 @ SV154 )
                    | ( in @ SY297 @ SV47 ) )
              | ~ ! [SY298: $i] :
                    ( ~ ( in @ SY298 @ SV154 )
                    | ( in @ SY298 @ SV126 ) ) ) )
        = $true )
      | ( ( SV154
          = ( set_intersection2 @ SV47 @ SV126 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[792]) ).

thf(825,plain,
    ! [SV99: $i,SV127: $i] :
      ( ( ( ( sK13_C @ SV127 @ SV99 )
          = SV99 )
        = $false )
      | ( ( ~ ( in @ ( sK13_C @ SV127 @ SV99 ) @ SV127 ) )
        = $true )
      | ( ( SV127
          = ( singleton @ SV99 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[793]) ).

thf(826,plain,
    ! [SV128: $i,SV100: $i,SV177: $i] :
      ( ( ( ( SV177 != SV100 )
          | ( in @ SV177 @ SV128 ) )
        = $true )
      | ( ( SV128
          = ( singleton @ SV100 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[795]) ).

thf(827,plain,
    ! [SV100: $i,SV128: $i,SV178: $i] :
      ( ( ( ~ ( in @ SV178 @ SV128 )
          | ( SV178 = SV100 ) )
        = $true )
      | ( ( SV128
          = ( singleton @ SV100 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[796]) ).

thf(828,plain,
    ! [SV165: $i,SV130: $i,SV102: $i] :
      ( ( ( disjoint @ SV102 @ SV130 )
        = $false )
      | ( ( in @ SV165 @ SV102 )
        = $false )
      | ( ( in @ SV165 @ SV130 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[797]) ).

thf(829,plain,
    ! [SV48: $i,SV131: $i,SV155: $i] :
      ( ( ( ~ ( in @ ( sK6_D @ SV155 @ SV131 @ SV48 ) @ SV48 )
          | ( in @ ( sK6_D @ SV155 @ SV131 @ SV48 ) @ SV131 ) )
        = $true )
      | ( ( ~ ( in @ ( sK6_D @ SV155 @ SV131 @ SV48 ) @ SV155 ) )
        = $true )
      | ( ( SV155
          = ( set_difference @ SV48 @ SV131 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[798]) ).

thf(830,plain,
    ! [SV48: $i,SV131: $i,SV155: $i] :
      ( ( ( ~ ( ( in @ ( sK6_D @ SV155 @ SV131 @ SV48 ) @ SV48 )
              | ( in @ ( sK6_D @ SV155 @ SV131 @ SV48 ) @ SV155 ) )
          | ~ ( ~ ( in @ ( sK6_D @ SV155 @ SV131 @ SV48 ) @ SV131 )
              | ( in @ ( sK6_D @ SV155 @ SV131 @ SV48 ) @ SV155 ) ) )
        = $false )
      | ( ( SV155
          = ( set_difference @ SV48 @ SV131 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[799]) ).

thf(831,plain,
    ! [SV156: $i,SV132: $i,SV48: $i] :
      ( ( ( ! [SY299: $i] :
              ( ~ ( in @ SY299 @ SV48 )
              | ( in @ SY299 @ SV132 )
              | ( in @ SY299 @ SV156 ) ) )
        = $true )
      | ( ( SV156
          = ( set_difference @ SV48 @ SV132 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[800]) ).

thf(832,plain,
    ! [SV132: $i,SV48: $i,SV156: $i] :
      ( ( ( ~ ( ~ ! [SY300: $i] :
                    ( ~ ( in @ SY300 @ SV156 )
                    | ( in @ SY300 @ SV48 ) )
              | ~ ! [SY301: $i] :
                    ( ~ ( in @ SY301 @ SV156 )
                    | ~ ( in @ SY301 @ SV132 ) ) ) )
        = $true )
      | ( ( SV156
          = ( set_difference @ SV48 @ SV132 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[801]) ).

thf(833,plain,
    ! [SV49: $i,SV139: $i,SV157: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK9_D @ SV157 @ SV139 @ SV49 ) @ SV157 )
              | ~ ( in @ ( sK9_D @ SV157 @ SV139 @ SV49 ) @ SV49 ) )
          | ~ ( ~ ( in @ ( sK9_D @ SV157 @ SV139 @ SV49 ) @ SV157 )
              | ~ ( in @ ( sK9_D @ SV157 @ SV139 @ SV49 ) @ SV139 ) ) )
        = $false )
      | ( ( SV157
          = ( set_union2 @ SV49 @ SV139 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[804]) ).

thf(834,plain,
    ! [SV49: $i,SV139: $i,SV157: $i] :
      ( ( ( in @ ( sK9_D @ SV157 @ SV139 @ SV49 ) @ SV157 )
        = $true )
      | ( ( ( in @ ( sK9_D @ SV157 @ SV139 @ SV49 ) @ SV49 )
          | ( in @ ( sK9_D @ SV157 @ SV139 @ SV49 ) @ SV139 ) )
        = $true )
      | ( ( SV157
          = ( set_union2 @ SV49 @ SV139 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[805]) ).

thf(835,plain,
    ! [SV140: $i,SV49: $i,SV158: $i] :
      ( ( ( ! [SY302: $i] :
              ( ~ ( in @ SY302 @ SV158 )
              | ( in @ SY302 @ SV49 )
              | ( in @ SY302 @ SV140 ) ) )
        = $true )
      | ( ( SV158
          = ( set_union2 @ SV49 @ SV140 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[806]) ).

thf(836,plain,
    ! [SV140: $i,SV158: $i,SV49: $i] :
      ( ( ( ~ ( ~ ! [SY303: $i] :
                    ( ~ ( in @ SY303 @ SV49 )
                    | ( in @ SY303 @ SV158 ) )
              | ~ ! [SY304: $i] :
                    ( ~ ( in @ SY304 @ SV140 )
                    | ( in @ SY304 @ SV158 ) ) ) )
        = $true )
      | ( ( SV158
          = ( set_union2 @ SV49 @ SV140 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[807]) ).

thf(837,plain,
    ! [SV110: $i,SV142: $i] :
      ( ( ( in @ ( sK11_C @ SV142 @ SV110 ) @ SV142 )
        = $false )
      | ( ( ~ ( subset @ ( sK11_C @ SV142 @ SV110 ) @ SV110 ) )
        = $true )
      | ( ( SV142
          = ( powerset @ SV110 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[810]) ).

thf(838,plain,
    ! [SV111: $i,SV143: $i,SV179: $i] :
      ( ( ( ~ ( in @ SV179 @ SV143 )
          | ( subset @ SV179 @ SV111 ) )
        = $true )
      | ( ( SV143
          = ( powerset @ SV111 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[812]) ).

thf(839,plain,
    ! [SV143: $i,SV111: $i,SV180: $i] :
      ( ( ( ~ ( subset @ SV180 @ SV111 )
          | ( in @ SV180 @ SV143 ) )
        = $true )
      | ( ( SV143
          = ( powerset @ SV111 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[813]) ).

thf(840,plain,
    ! [SV51: $i,SV144: $i,SV159: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK10_D @ SV159 @ SV144 @ SV51 ) @ SV159 )
              | ( ( sK10_D @ SV159 @ SV144 @ SV51 )
               != SV51 ) )
          | ~ ( ~ ( in @ ( sK10_D @ SV159 @ SV144 @ SV51 ) @ SV159 )
              | ( ( sK10_D @ SV159 @ SV144 @ SV51 )
               != SV144 ) ) )
        = $false )
      | ( ( SV159
          = ( unordered_pair @ SV51 @ SV144 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[814]) ).

thf(841,plain,
    ! [SV51: $i,SV144: $i,SV159: $i] :
      ( ( ( in @ ( sK10_D @ SV159 @ SV144 @ SV51 ) @ SV159 )
        = $true )
      | ( ( ( ( sK10_D @ SV159 @ SV144 @ SV51 )
            = SV51 )
          | ( ( sK10_D @ SV159 @ SV144 @ SV51 )
            = SV144 ) )
        = $true )
      | ( ( SV159
          = ( unordered_pair @ SV51 @ SV144 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[815]) ).

thf(842,plain,
    ! [SV145: $i,SV51: $i,SV160: $i] :
      ( ( ( ! [SY305: $i] :
              ( ~ ( in @ SY305 @ SV160 )
              | ( SY305 = SV51 )
              | ( SY305 = SV145 ) ) )
        = $true )
      | ( ( SV160
          = ( unordered_pair @ SV51 @ SV145 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[816]) ).

thf(843,plain,
    ! [SV145: $i,SV160: $i,SV51: $i] :
      ( ( ( ~ ( ~ ! [SY306: $i] :
                    ( ( SY306 != SV51 )
                    | ( in @ SY306 @ SV160 ) )
              | ~ ! [SY307: $i] :
                    ( ( SY307 != SV145 )
                    | ( in @ SY307 @ SV160 ) ) ) )
        = $true )
      | ( ( SV160
          = ( unordered_pair @ SV51 @ SV145 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[817]) ).

thf(844,plain,
    ! [SV47: $i,SV125: $i,SV153: $i] :
      ( ( ( ~ ( in @ ( sK7_D @ SV153 @ SV125 @ SV47 ) @ SV47 ) )
        = $true )
      | ( ( ~ ( in @ ( sK7_D @ SV153 @ SV125 @ SV47 ) @ SV125 ) )
        = $true )
      | ( ( ~ ( in @ ( sK7_D @ SV153 @ SV125 @ SV47 ) @ SV153 ) )
        = $true )
      | ( ( SV153
          = ( set_intersection2 @ SV47 @ SV125 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[821]) ).

thf(845,plain,
    ! [SV47: $i,SV125: $i,SV153: $i] :
      ( ( ( ~ ( ( in @ ( sK7_D @ SV153 @ SV125 @ SV47 ) @ SV47 )
              | ( in @ ( sK7_D @ SV153 @ SV125 @ SV47 ) @ SV153 ) ) )
        = $false )
      | ( ( SV153
          = ( set_intersection2 @ SV47 @ SV125 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[822]) ).

thf(846,plain,
    ! [SV47: $i,SV125: $i,SV153: $i] :
      ( ( ( ~ ( ( in @ ( sK7_D @ SV153 @ SV125 @ SV47 ) @ SV125 )
              | ( in @ ( sK7_D @ SV153 @ SV125 @ SV47 ) @ SV153 ) ) )
        = $false )
      | ( ( SV153
          = ( set_intersection2 @ SV47 @ SV125 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[822]) ).

thf(847,plain,
    ! [SV154: $i,SV126: $i,SV47: $i,SV181: $i] :
      ( ( ( ~ ( in @ SV181 @ SV47 )
          | ~ ( in @ SV181 @ SV126 )
          | ( in @ SV181 @ SV154 ) )
        = $true )
      | ( ( SV154
          = ( set_intersection2 @ SV47 @ SV126 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[823]) ).

thf(848,plain,
    ! [SV126: $i,SV47: $i,SV154: $i] :
      ( ( ( ~ ! [SY297: $i] :
                ( ~ ( in @ SY297 @ SV154 )
                | ( in @ SY297 @ SV47 ) )
          | ~ ! [SY298: $i] :
                ( ~ ( in @ SY298 @ SV154 )
                | ( in @ SY298 @ SV126 ) ) )
        = $false )
      | ( ( SV154
          = ( set_intersection2 @ SV47 @ SV126 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[824]) ).

thf(849,plain,
    ! [SV99: $i,SV127: $i] :
      ( ( ( in @ ( sK13_C @ SV127 @ SV99 ) @ SV127 )
        = $false )
      | ( ( ( sK13_C @ SV127 @ SV99 )
          = SV99 )
        = $false )
      | ( ( SV127
          = ( singleton @ SV99 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[825]) ).

thf(850,plain,
    ! [SV128: $i,SV100: $i,SV177: $i] :
      ( ( ( ( SV177 != SV100 ) )
        = $true )
      | ( ( in @ SV177 @ SV128 )
        = $true )
      | ( ( SV128
          = ( singleton @ SV100 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[826]) ).

thf(851,plain,
    ! [SV100: $i,SV128: $i,SV178: $i] :
      ( ( ( ~ ( in @ SV178 @ SV128 ) )
        = $true )
      | ( ( SV178 = SV100 )
        = $true )
      | ( ( SV128
          = ( singleton @ SV100 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[827]) ).

thf(852,plain,
    ! [SV48: $i,SV131: $i,SV155: $i] :
      ( ( ( ~ ( in @ ( sK6_D @ SV155 @ SV131 @ SV48 ) @ SV48 ) )
        = $true )
      | ( ( in @ ( sK6_D @ SV155 @ SV131 @ SV48 ) @ SV131 )
        = $true )
      | ( ( ~ ( in @ ( sK6_D @ SV155 @ SV131 @ SV48 ) @ SV155 ) )
        = $true )
      | ( ( SV155
          = ( set_difference @ SV48 @ SV131 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[829]) ).

thf(853,plain,
    ! [SV48: $i,SV131: $i,SV155: $i] :
      ( ( ( ~ ( ( in @ ( sK6_D @ SV155 @ SV131 @ SV48 ) @ SV48 )
              | ( in @ ( sK6_D @ SV155 @ SV131 @ SV48 ) @ SV155 ) ) )
        = $false )
      | ( ( SV155
          = ( set_difference @ SV48 @ SV131 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[830]) ).

thf(854,plain,
    ! [SV48: $i,SV131: $i,SV155: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK6_D @ SV155 @ SV131 @ SV48 ) @ SV131 )
              | ( in @ ( sK6_D @ SV155 @ SV131 @ SV48 ) @ SV155 ) ) )
        = $false )
      | ( ( SV155
          = ( set_difference @ SV48 @ SV131 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[830]) ).

thf(855,plain,
    ! [SV156: $i,SV132: $i,SV48: $i,SV182: $i] :
      ( ( ( ~ ( in @ SV182 @ SV48 )
          | ( in @ SV182 @ SV132 )
          | ( in @ SV182 @ SV156 ) )
        = $true )
      | ( ( SV156
          = ( set_difference @ SV48 @ SV132 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[831]) ).

thf(856,plain,
    ! [SV132: $i,SV48: $i,SV156: $i] :
      ( ( ( ~ ! [SY300: $i] :
                ( ~ ( in @ SY300 @ SV156 )
                | ( in @ SY300 @ SV48 ) )
          | ~ ! [SY301: $i] :
                ( ~ ( in @ SY301 @ SV156 )
                | ~ ( in @ SY301 @ SV132 ) ) )
        = $false )
      | ( ( SV156
          = ( set_difference @ SV48 @ SV132 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[832]) ).

thf(857,plain,
    ! [SV49: $i,SV139: $i,SV157: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK9_D @ SV157 @ SV139 @ SV49 ) @ SV157 )
              | ~ ( in @ ( sK9_D @ SV157 @ SV139 @ SV49 ) @ SV49 ) ) )
        = $false )
      | ( ( SV157
          = ( set_union2 @ SV49 @ SV139 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[833]) ).

thf(858,plain,
    ! [SV49: $i,SV139: $i,SV157: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK9_D @ SV157 @ SV139 @ SV49 ) @ SV157 )
              | ~ ( in @ ( sK9_D @ SV157 @ SV139 @ SV49 ) @ SV139 ) ) )
        = $false )
      | ( ( SV157
          = ( set_union2 @ SV49 @ SV139 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[833]) ).

thf(859,plain,
    ! [SV49: $i,SV139: $i,SV157: $i] :
      ( ( ( in @ ( sK9_D @ SV157 @ SV139 @ SV49 ) @ SV49 )
        = $true )
      | ( ( in @ ( sK9_D @ SV157 @ SV139 @ SV49 ) @ SV139 )
        = $true )
      | ( ( in @ ( sK9_D @ SV157 @ SV139 @ SV49 ) @ SV157 )
        = $true )
      | ( ( SV157
          = ( set_union2 @ SV49 @ SV139 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[834]) ).

thf(860,plain,
    ! [SV140: $i,SV49: $i,SV158: $i,SV183: $i] :
      ( ( ( ~ ( in @ SV183 @ SV158 )
          | ( in @ SV183 @ SV49 )
          | ( in @ SV183 @ SV140 ) )
        = $true )
      | ( ( SV158
          = ( set_union2 @ SV49 @ SV140 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[835]) ).

thf(861,plain,
    ! [SV140: $i,SV158: $i,SV49: $i] :
      ( ( ( ~ ! [SY303: $i] :
                ( ~ ( in @ SY303 @ SV49 )
                | ( in @ SY303 @ SV158 ) )
          | ~ ! [SY304: $i] :
                ( ~ ( in @ SY304 @ SV140 )
                | ( in @ SY304 @ SV158 ) ) )
        = $false )
      | ( ( SV158
          = ( set_union2 @ SV49 @ SV140 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[836]) ).

thf(862,plain,
    ! [SV110: $i,SV142: $i] :
      ( ( ( subset @ ( sK11_C @ SV142 @ SV110 ) @ SV110 )
        = $false )
      | ( ( in @ ( sK11_C @ SV142 @ SV110 ) @ SV142 )
        = $false )
      | ( ( SV142
          = ( powerset @ SV110 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[837]) ).

thf(863,plain,
    ! [SV111: $i,SV143: $i,SV179: $i] :
      ( ( ( ~ ( in @ SV179 @ SV143 ) )
        = $true )
      | ( ( subset @ SV179 @ SV111 )
        = $true )
      | ( ( SV143
          = ( powerset @ SV111 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[838]) ).

thf(864,plain,
    ! [SV143: $i,SV111: $i,SV180: $i] :
      ( ( ( ~ ( subset @ SV180 @ SV111 ) )
        = $true )
      | ( ( in @ SV180 @ SV143 )
        = $true )
      | ( ( SV143
          = ( powerset @ SV111 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[839]) ).

thf(865,plain,
    ! [SV51: $i,SV144: $i,SV159: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK10_D @ SV159 @ SV144 @ SV51 ) @ SV159 )
              | ( ( sK10_D @ SV159 @ SV144 @ SV51 )
               != SV51 ) ) )
        = $false )
      | ( ( SV159
          = ( unordered_pair @ SV51 @ SV144 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[840]) ).

thf(866,plain,
    ! [SV51: $i,SV144: $i,SV159: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK10_D @ SV159 @ SV144 @ SV51 ) @ SV159 )
              | ( ( sK10_D @ SV159 @ SV144 @ SV51 )
               != SV144 ) ) )
        = $false )
      | ( ( SV159
          = ( unordered_pair @ SV51 @ SV144 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[840]) ).

thf(867,plain,
    ! [SV51: $i,SV144: $i,SV159: $i] :
      ( ( ( ( sK10_D @ SV159 @ SV144 @ SV51 )
          = SV51 )
        = $true )
      | ( ( ( sK10_D @ SV159 @ SV144 @ SV51 )
          = SV144 )
        = $true )
      | ( ( in @ ( sK10_D @ SV159 @ SV144 @ SV51 ) @ SV159 )
        = $true )
      | ( ( SV159
          = ( unordered_pair @ SV51 @ SV144 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[841]) ).

thf(868,plain,
    ! [SV145: $i,SV51: $i,SV160: $i,SV184: $i] :
      ( ( ( ~ ( in @ SV184 @ SV160 )
          | ( SV184 = SV51 )
          | ( SV184 = SV145 ) )
        = $true )
      | ( ( SV160
          = ( unordered_pair @ SV51 @ SV145 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[842]) ).

thf(869,plain,
    ! [SV145: $i,SV160: $i,SV51: $i] :
      ( ( ( ~ ! [SY306: $i] :
                ( ( SY306 != SV51 )
                | ( in @ SY306 @ SV160 ) )
          | ~ ! [SY307: $i] :
                ( ( SY307 != SV145 )
                | ( in @ SY307 @ SV160 ) ) )
        = $false )
      | ( ( SV160
          = ( unordered_pair @ SV51 @ SV145 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[843]) ).

thf(870,plain,
    ! [SV47: $i,SV125: $i,SV153: $i] :
      ( ( ( in @ ( sK7_D @ SV153 @ SV125 @ SV47 ) @ SV47 )
        = $false )
      | ( ( ~ ( in @ ( sK7_D @ SV153 @ SV125 @ SV47 ) @ SV125 ) )
        = $true )
      | ( ( ~ ( in @ ( sK7_D @ SV153 @ SV125 @ SV47 ) @ SV153 ) )
        = $true )
      | ( ( SV153
          = ( set_intersection2 @ SV47 @ SV125 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[844]) ).

thf(871,plain,
    ! [SV47: $i,SV125: $i,SV153: $i] :
      ( ( ( ( in @ ( sK7_D @ SV153 @ SV125 @ SV47 ) @ SV47 )
          | ( in @ ( sK7_D @ SV153 @ SV125 @ SV47 ) @ SV153 ) )
        = $true )
      | ( ( SV153
          = ( set_intersection2 @ SV47 @ SV125 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[845]) ).

thf(872,plain,
    ! [SV47: $i,SV125: $i,SV153: $i] :
      ( ( ( ( in @ ( sK7_D @ SV153 @ SV125 @ SV47 ) @ SV125 )
          | ( in @ ( sK7_D @ SV153 @ SV125 @ SV47 ) @ SV153 ) )
        = $true )
      | ( ( SV153
          = ( set_intersection2 @ SV47 @ SV125 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[846]) ).

thf(873,plain,
    ! [SV154: $i,SV126: $i,SV47: $i,SV181: $i] :
      ( ( ( ~ ( in @ SV181 @ SV47 )
          | ~ ( in @ SV181 @ SV126 ) )
        = $true )
      | ( ( in @ SV181 @ SV154 )
        = $true )
      | ( ( SV154
          = ( set_intersection2 @ SV47 @ SV126 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[847]) ).

thf(874,plain,
    ! [SV126: $i,SV47: $i,SV154: $i] :
      ( ( ( ~ ! [SY297: $i] :
                ( ~ ( in @ SY297 @ SV154 )
                | ( in @ SY297 @ SV47 ) ) )
        = $false )
      | ( ( SV154
          = ( set_intersection2 @ SV47 @ SV126 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[848]) ).

thf(875,plain,
    ! [SV47: $i,SV126: $i,SV154: $i] :
      ( ( ( ~ ! [SY298: $i] :
                ( ~ ( in @ SY298 @ SV154 )
                | ( in @ SY298 @ SV126 ) ) )
        = $false )
      | ( ( SV154
          = ( set_intersection2 @ SV47 @ SV126 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[848]) ).

thf(876,plain,
    ! [SV128: $i,SV100: $i,SV177: $i] :
      ( ( ( SV177 = SV100 )
        = $false )
      | ( ( in @ SV177 @ SV128 )
        = $true )
      | ( ( SV128
          = ( singleton @ SV100 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[850]) ).

thf(877,plain,
    ! [SV100: $i,SV128: $i,SV178: $i] :
      ( ( ( in @ SV178 @ SV128 )
        = $false )
      | ( ( SV178 = SV100 )
        = $true )
      | ( ( SV128
          = ( singleton @ SV100 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[851]) ).

thf(878,plain,
    ! [SV48: $i,SV131: $i,SV155: $i] :
      ( ( ( in @ ( sK6_D @ SV155 @ SV131 @ SV48 ) @ SV48 )
        = $false )
      | ( ( in @ ( sK6_D @ SV155 @ SV131 @ SV48 ) @ SV131 )
        = $true )
      | ( ( ~ ( in @ ( sK6_D @ SV155 @ SV131 @ SV48 ) @ SV155 ) )
        = $true )
      | ( ( SV155
          = ( set_difference @ SV48 @ SV131 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[852]) ).

thf(879,plain,
    ! [SV48: $i,SV131: $i,SV155: $i] :
      ( ( ( ( in @ ( sK6_D @ SV155 @ SV131 @ SV48 ) @ SV48 )
          | ( in @ ( sK6_D @ SV155 @ SV131 @ SV48 ) @ SV155 ) )
        = $true )
      | ( ( SV155
          = ( set_difference @ SV48 @ SV131 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[853]) ).

thf(880,plain,
    ! [SV48: $i,SV131: $i,SV155: $i] :
      ( ( ( ~ ( in @ ( sK6_D @ SV155 @ SV131 @ SV48 ) @ SV131 )
          | ( in @ ( sK6_D @ SV155 @ SV131 @ SV48 ) @ SV155 ) )
        = $true )
      | ( ( SV155
          = ( set_difference @ SV48 @ SV131 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[854]) ).

thf(881,plain,
    ! [SV156: $i,SV132: $i,SV48: $i,SV182: $i] :
      ( ( ( ~ ( in @ SV182 @ SV48 )
          | ( in @ SV182 @ SV132 ) )
        = $true )
      | ( ( in @ SV182 @ SV156 )
        = $true )
      | ( ( SV156
          = ( set_difference @ SV48 @ SV132 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[855]) ).

thf(882,plain,
    ! [SV132: $i,SV48: $i,SV156: $i] :
      ( ( ( ~ ! [SY300: $i] :
                ( ~ ( in @ SY300 @ SV156 )
                | ( in @ SY300 @ SV48 ) ) )
        = $false )
      | ( ( SV156
          = ( set_difference @ SV48 @ SV132 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[856]) ).

thf(883,plain,
    ! [SV48: $i,SV132: $i,SV156: $i] :
      ( ( ( ~ ! [SY301: $i] :
                ( ~ ( in @ SY301 @ SV156 )
                | ~ ( in @ SY301 @ SV132 ) ) )
        = $false )
      | ( ( SV156
          = ( set_difference @ SV48 @ SV132 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[856]) ).

thf(884,plain,
    ! [SV49: $i,SV139: $i,SV157: $i] :
      ( ( ( ~ ( in @ ( sK9_D @ SV157 @ SV139 @ SV49 ) @ SV157 )
          | ~ ( in @ ( sK9_D @ SV157 @ SV139 @ SV49 ) @ SV49 ) )
        = $true )
      | ( ( SV157
          = ( set_union2 @ SV49 @ SV139 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[857]) ).

thf(885,plain,
    ! [SV49: $i,SV139: $i,SV157: $i] :
      ( ( ( ~ ( in @ ( sK9_D @ SV157 @ SV139 @ SV49 ) @ SV157 )
          | ~ ( in @ ( sK9_D @ SV157 @ SV139 @ SV49 ) @ SV139 ) )
        = $true )
      | ( ( SV157
          = ( set_union2 @ SV49 @ SV139 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[858]) ).

thf(886,plain,
    ! [SV140: $i,SV49: $i,SV158: $i,SV183: $i] :
      ( ( ( ~ ( in @ SV183 @ SV158 ) )
        = $true )
      | ( ( ( in @ SV183 @ SV49 )
          | ( in @ SV183 @ SV140 ) )
        = $true )
      | ( ( SV158
          = ( set_union2 @ SV49 @ SV140 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[860]) ).

thf(887,plain,
    ! [SV140: $i,SV158: $i,SV49: $i] :
      ( ( ( ~ ! [SY303: $i] :
                ( ~ ( in @ SY303 @ SV49 )
                | ( in @ SY303 @ SV158 ) ) )
        = $false )
      | ( ( SV158
          = ( set_union2 @ SV49 @ SV140 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[861]) ).

thf(888,plain,
    ! [SV49: $i,SV158: $i,SV140: $i] :
      ( ( ( ~ ! [SY304: $i] :
                ( ~ ( in @ SY304 @ SV140 )
                | ( in @ SY304 @ SV158 ) ) )
        = $false )
      | ( ( SV158
          = ( set_union2 @ SV49 @ SV140 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[861]) ).

thf(889,plain,
    ! [SV111: $i,SV143: $i,SV179: $i] :
      ( ( ( in @ SV179 @ SV143 )
        = $false )
      | ( ( subset @ SV179 @ SV111 )
        = $true )
      | ( ( SV143
          = ( powerset @ SV111 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[863]) ).

thf(890,plain,
    ! [SV143: $i,SV111: $i,SV180: $i] :
      ( ( ( subset @ SV180 @ SV111 )
        = $false )
      | ( ( in @ SV180 @ SV143 )
        = $true )
      | ( ( SV143
          = ( powerset @ SV111 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[864]) ).

thf(891,plain,
    ! [SV51: $i,SV144: $i,SV159: $i] :
      ( ( ( ~ ( in @ ( sK10_D @ SV159 @ SV144 @ SV51 ) @ SV159 )
          | ( ( sK10_D @ SV159 @ SV144 @ SV51 )
           != SV51 ) )
        = $true )
      | ( ( SV159
          = ( unordered_pair @ SV51 @ SV144 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[865]) ).

thf(892,plain,
    ! [SV51: $i,SV144: $i,SV159: $i] :
      ( ( ( ~ ( in @ ( sK10_D @ SV159 @ SV144 @ SV51 ) @ SV159 )
          | ( ( sK10_D @ SV159 @ SV144 @ SV51 )
           != SV144 ) )
        = $true )
      | ( ( SV159
          = ( unordered_pair @ SV51 @ SV144 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[866]) ).

thf(893,plain,
    ! [SV145: $i,SV51: $i,SV160: $i,SV184: $i] :
      ( ( ( ~ ( in @ SV184 @ SV160 ) )
        = $true )
      | ( ( ( SV184 = SV51 )
          | ( SV184 = SV145 ) )
        = $true )
      | ( ( SV160
          = ( unordered_pair @ SV51 @ SV145 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[868]) ).

thf(894,plain,
    ! [SV145: $i,SV160: $i,SV51: $i] :
      ( ( ( ~ ! [SY306: $i] :
                ( ( SY306 != SV51 )
                | ( in @ SY306 @ SV160 ) ) )
        = $false )
      | ( ( SV160
          = ( unordered_pair @ SV51 @ SV145 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[869]) ).

thf(895,plain,
    ! [SV51: $i,SV160: $i,SV145: $i] :
      ( ( ( ~ ! [SY307: $i] :
                ( ( SY307 != SV145 )
                | ( in @ SY307 @ SV160 ) ) )
        = $false )
      | ( ( SV160
          = ( unordered_pair @ SV51 @ SV145 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[869]) ).

thf(896,plain,
    ! [SV47: $i,SV125: $i,SV153: $i] :
      ( ( ( in @ ( sK7_D @ SV153 @ SV125 @ SV47 ) @ SV125 )
        = $false )
      | ( ( in @ ( sK7_D @ SV153 @ SV125 @ SV47 ) @ SV47 )
        = $false )
      | ( ( ~ ( in @ ( sK7_D @ SV153 @ SV125 @ SV47 ) @ SV153 ) )
        = $true )
      | ( ( SV153
          = ( set_intersection2 @ SV47 @ SV125 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[870]) ).

thf(897,plain,
    ! [SV47: $i,SV125: $i,SV153: $i] :
      ( ( ( in @ ( sK7_D @ SV153 @ SV125 @ SV47 ) @ SV47 )
        = $true )
      | ( ( in @ ( sK7_D @ SV153 @ SV125 @ SV47 ) @ SV153 )
        = $true )
      | ( ( SV153
          = ( set_intersection2 @ SV47 @ SV125 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[871]) ).

thf(898,plain,
    ! [SV47: $i,SV125: $i,SV153: $i] :
      ( ( ( in @ ( sK7_D @ SV153 @ SV125 @ SV47 ) @ SV125 )
        = $true )
      | ( ( in @ ( sK7_D @ SV153 @ SV125 @ SV47 ) @ SV153 )
        = $true )
      | ( ( SV153
          = ( set_intersection2 @ SV47 @ SV125 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[872]) ).

thf(899,plain,
    ! [SV154: $i,SV126: $i,SV47: $i,SV181: $i] :
      ( ( ( ~ ( in @ SV181 @ SV47 ) )
        = $true )
      | ( ( ~ ( in @ SV181 @ SV126 ) )
        = $true )
      | ( ( in @ SV181 @ SV154 )
        = $true )
      | ( ( SV154
          = ( set_intersection2 @ SV47 @ SV126 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[873]) ).

thf(900,plain,
    ! [SV126: $i,SV47: $i,SV154: $i] :
      ( ( ( ! [SY297: $i] :
              ( ~ ( in @ SY297 @ SV154 )
              | ( in @ SY297 @ SV47 ) ) )
        = $true )
      | ( ( SV154
          = ( set_intersection2 @ SV47 @ SV126 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[874]) ).

thf(901,plain,
    ! [SV47: $i,SV126: $i,SV154: $i] :
      ( ( ( ! [SY298: $i] :
              ( ~ ( in @ SY298 @ SV154 )
              | ( in @ SY298 @ SV126 ) ) )
        = $true )
      | ( ( SV154
          = ( set_intersection2 @ SV47 @ SV126 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[875]) ).

thf(902,plain,
    ! [SV48: $i,SV131: $i,SV155: $i] :
      ( ( ( in @ ( sK6_D @ SV155 @ SV131 @ SV48 ) @ SV155 )
        = $false )
      | ( ( in @ ( sK6_D @ SV155 @ SV131 @ SV48 ) @ SV131 )
        = $true )
      | ( ( in @ ( sK6_D @ SV155 @ SV131 @ SV48 ) @ SV48 )
        = $false )
      | ( ( SV155
          = ( set_difference @ SV48 @ SV131 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[878]) ).

thf(903,plain,
    ! [SV48: $i,SV131: $i,SV155: $i] :
      ( ( ( in @ ( sK6_D @ SV155 @ SV131 @ SV48 ) @ SV48 )
        = $true )
      | ( ( in @ ( sK6_D @ SV155 @ SV131 @ SV48 ) @ SV155 )
        = $true )
      | ( ( SV155
          = ( set_difference @ SV48 @ SV131 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[879]) ).

thf(904,plain,
    ! [SV48: $i,SV131: $i,SV155: $i] :
      ( ( ( ~ ( in @ ( sK6_D @ SV155 @ SV131 @ SV48 ) @ SV131 ) )
        = $true )
      | ( ( in @ ( sK6_D @ SV155 @ SV131 @ SV48 ) @ SV155 )
        = $true )
      | ( ( SV155
          = ( set_difference @ SV48 @ SV131 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[880]) ).

thf(905,plain,
    ! [SV156: $i,SV132: $i,SV48: $i,SV182: $i] :
      ( ( ( ~ ( in @ SV182 @ SV48 ) )
        = $true )
      | ( ( in @ SV182 @ SV132 )
        = $true )
      | ( ( in @ SV182 @ SV156 )
        = $true )
      | ( ( SV156
          = ( set_difference @ SV48 @ SV132 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[881]) ).

thf(906,plain,
    ! [SV132: $i,SV48: $i,SV156: $i] :
      ( ( ( ! [SY300: $i] :
              ( ~ ( in @ SY300 @ SV156 )
              | ( in @ SY300 @ SV48 ) ) )
        = $true )
      | ( ( SV156
          = ( set_difference @ SV48 @ SV132 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[882]) ).

thf(907,plain,
    ! [SV48: $i,SV132: $i,SV156: $i] :
      ( ( ( ! [SY301: $i] :
              ( ~ ( in @ SY301 @ SV156 )
              | ~ ( in @ SY301 @ SV132 ) ) )
        = $true )
      | ( ( SV156
          = ( set_difference @ SV48 @ SV132 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[883]) ).

thf(908,plain,
    ! [SV49: $i,SV139: $i,SV157: $i] :
      ( ( ( ~ ( in @ ( sK9_D @ SV157 @ SV139 @ SV49 ) @ SV157 ) )
        = $true )
      | ( ( ~ ( in @ ( sK9_D @ SV157 @ SV139 @ SV49 ) @ SV49 ) )
        = $true )
      | ( ( SV157
          = ( set_union2 @ SV49 @ SV139 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[884]) ).

thf(909,plain,
    ! [SV49: $i,SV139: $i,SV157: $i] :
      ( ( ( ~ ( in @ ( sK9_D @ SV157 @ SV139 @ SV49 ) @ SV157 ) )
        = $true )
      | ( ( ~ ( in @ ( sK9_D @ SV157 @ SV139 @ SV49 ) @ SV139 ) )
        = $true )
      | ( ( SV157
          = ( set_union2 @ SV49 @ SV139 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[885]) ).

thf(910,plain,
    ! [SV140: $i,SV49: $i,SV158: $i,SV183: $i] :
      ( ( ( in @ SV183 @ SV158 )
        = $false )
      | ( ( ( in @ SV183 @ SV49 )
          | ( in @ SV183 @ SV140 ) )
        = $true )
      | ( ( SV158
          = ( set_union2 @ SV49 @ SV140 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[886]) ).

thf(911,plain,
    ! [SV140: $i,SV158: $i,SV49: $i] :
      ( ( ( ! [SY303: $i] :
              ( ~ ( in @ SY303 @ SV49 )
              | ( in @ SY303 @ SV158 ) ) )
        = $true )
      | ( ( SV158
          = ( set_union2 @ SV49 @ SV140 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[887]) ).

thf(912,plain,
    ! [SV49: $i,SV158: $i,SV140: $i] :
      ( ( ( ! [SY304: $i] :
              ( ~ ( in @ SY304 @ SV140 )
              | ( in @ SY304 @ SV158 ) ) )
        = $true )
      | ( ( SV158
          = ( set_union2 @ SV49 @ SV140 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[888]) ).

thf(913,plain,
    ! [SV51: $i,SV144: $i,SV159: $i] :
      ( ( ( ~ ( in @ ( sK10_D @ SV159 @ SV144 @ SV51 ) @ SV159 ) )
        = $true )
      | ( ( ( ( sK10_D @ SV159 @ SV144 @ SV51 )
           != SV51 ) )
        = $true )
      | ( ( SV159
          = ( unordered_pair @ SV51 @ SV144 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[891]) ).

thf(914,plain,
    ! [SV51: $i,SV144: $i,SV159: $i] :
      ( ( ( ~ ( in @ ( sK10_D @ SV159 @ SV144 @ SV51 ) @ SV159 ) )
        = $true )
      | ( ( ( ( sK10_D @ SV159 @ SV144 @ SV51 )
           != SV144 ) )
        = $true )
      | ( ( SV159
          = ( unordered_pair @ SV51 @ SV144 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[892]) ).

thf(915,plain,
    ! [SV145: $i,SV51: $i,SV160: $i,SV184: $i] :
      ( ( ( in @ SV184 @ SV160 )
        = $false )
      | ( ( ( SV184 = SV51 )
          | ( SV184 = SV145 ) )
        = $true )
      | ( ( SV160
          = ( unordered_pair @ SV51 @ SV145 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[893]) ).

thf(916,plain,
    ! [SV145: $i,SV160: $i,SV51: $i] :
      ( ( ( ! [SY306: $i] :
              ( ( SY306 != SV51 )
              | ( in @ SY306 @ SV160 ) ) )
        = $true )
      | ( ( SV160
          = ( unordered_pair @ SV51 @ SV145 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[894]) ).

thf(917,plain,
    ! [SV51: $i,SV160: $i,SV145: $i] :
      ( ( ( ! [SY307: $i] :
              ( ( SY307 != SV145 )
              | ( in @ SY307 @ SV160 ) ) )
        = $true )
      | ( ( SV160
          = ( unordered_pair @ SV51 @ SV145 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[895]) ).

thf(918,plain,
    ! [SV47: $i,SV125: $i,SV153: $i] :
      ( ( ( in @ ( sK7_D @ SV153 @ SV125 @ SV47 ) @ SV153 )
        = $false )
      | ( ( in @ ( sK7_D @ SV153 @ SV125 @ SV47 ) @ SV47 )
        = $false )
      | ( ( in @ ( sK7_D @ SV153 @ SV125 @ SV47 ) @ SV125 )
        = $false )
      | ( ( SV153
          = ( set_intersection2 @ SV47 @ SV125 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[896]) ).

thf(919,plain,
    ! [SV154: $i,SV126: $i,SV47: $i,SV181: $i] :
      ( ( ( in @ SV181 @ SV47 )
        = $false )
      | ( ( ~ ( in @ SV181 @ SV126 ) )
        = $true )
      | ( ( in @ SV181 @ SV154 )
        = $true )
      | ( ( SV154
          = ( set_intersection2 @ SV47 @ SV126 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[899]) ).

thf(920,plain,
    ! [SV126: $i,SV47: $i,SV154: $i,SV185: $i] :
      ( ( ( ~ ( in @ SV185 @ SV154 )
          | ( in @ SV185 @ SV47 ) )
        = $true )
      | ( ( SV154
          = ( set_intersection2 @ SV47 @ SV126 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[900]) ).

thf(921,plain,
    ! [SV47: $i,SV126: $i,SV154: $i,SV186: $i] :
      ( ( ( ~ ( in @ SV186 @ SV154 )
          | ( in @ SV186 @ SV126 ) )
        = $true )
      | ( ( SV154
          = ( set_intersection2 @ SV47 @ SV126 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[901]) ).

thf(922,plain,
    ! [SV48: $i,SV131: $i,SV155: $i] :
      ( ( ( in @ ( sK6_D @ SV155 @ SV131 @ SV48 ) @ SV131 )
        = $false )
      | ( ( in @ ( sK6_D @ SV155 @ SV131 @ SV48 ) @ SV155 )
        = $true )
      | ( ( SV155
          = ( set_difference @ SV48 @ SV131 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[904]) ).

thf(923,plain,
    ! [SV156: $i,SV132: $i,SV48: $i,SV182: $i] :
      ( ( ( in @ SV182 @ SV48 )
        = $false )
      | ( ( in @ SV182 @ SV132 )
        = $true )
      | ( ( in @ SV182 @ SV156 )
        = $true )
      | ( ( SV156
          = ( set_difference @ SV48 @ SV132 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[905]) ).

thf(924,plain,
    ! [SV132: $i,SV48: $i,SV156: $i,SV187: $i] :
      ( ( ( ~ ( in @ SV187 @ SV156 )
          | ( in @ SV187 @ SV48 ) )
        = $true )
      | ( ( SV156
          = ( set_difference @ SV48 @ SV132 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[906]) ).

thf(925,plain,
    ! [SV48: $i,SV132: $i,SV156: $i,SV188: $i] :
      ( ( ( ~ ( in @ SV188 @ SV156 )
          | ~ ( in @ SV188 @ SV132 ) )
        = $true )
      | ( ( SV156
          = ( set_difference @ SV48 @ SV132 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[907]) ).

thf(926,plain,
    ! [SV49: $i,SV139: $i,SV157: $i] :
      ( ( ( in @ ( sK9_D @ SV157 @ SV139 @ SV49 ) @ SV157 )
        = $false )
      | ( ( ~ ( in @ ( sK9_D @ SV157 @ SV139 @ SV49 ) @ SV49 ) )
        = $true )
      | ( ( SV157
          = ( set_union2 @ SV49 @ SV139 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[908]) ).

thf(927,plain,
    ! [SV49: $i,SV139: $i,SV157: $i] :
      ( ( ( in @ ( sK9_D @ SV157 @ SV139 @ SV49 ) @ SV157 )
        = $false )
      | ( ( ~ ( in @ ( sK9_D @ SV157 @ SV139 @ SV49 ) @ SV139 ) )
        = $true )
      | ( ( SV157
          = ( set_union2 @ SV49 @ SV139 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[909]) ).

thf(928,plain,
    ! [SV158: $i,SV140: $i,SV49: $i,SV183: $i] :
      ( ( ( in @ SV183 @ SV49 )
        = $true )
      | ( ( in @ SV183 @ SV140 )
        = $true )
      | ( ( in @ SV183 @ SV158 )
        = $false )
      | ( ( SV158
          = ( set_union2 @ SV49 @ SV140 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[910]) ).

thf(929,plain,
    ! [SV140: $i,SV158: $i,SV49: $i,SV189: $i] :
      ( ( ( ~ ( in @ SV189 @ SV49 )
          | ( in @ SV189 @ SV158 ) )
        = $true )
      | ( ( SV158
          = ( set_union2 @ SV49 @ SV140 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[911]) ).

thf(930,plain,
    ! [SV49: $i,SV158: $i,SV140: $i,SV190: $i] :
      ( ( ( ~ ( in @ SV190 @ SV140 )
          | ( in @ SV190 @ SV158 ) )
        = $true )
      | ( ( SV158
          = ( set_union2 @ SV49 @ SV140 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[912]) ).

thf(931,plain,
    ! [SV51: $i,SV144: $i,SV159: $i] :
      ( ( ( in @ ( sK10_D @ SV159 @ SV144 @ SV51 ) @ SV159 )
        = $false )
      | ( ( ( ( sK10_D @ SV159 @ SV144 @ SV51 )
           != SV51 ) )
        = $true )
      | ( ( SV159
          = ( unordered_pair @ SV51 @ SV144 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[913]) ).

thf(932,plain,
    ! [SV51: $i,SV144: $i,SV159: $i] :
      ( ( ( in @ ( sK10_D @ SV159 @ SV144 @ SV51 ) @ SV159 )
        = $false )
      | ( ( ( ( sK10_D @ SV159 @ SV144 @ SV51 )
           != SV144 ) )
        = $true )
      | ( ( SV159
          = ( unordered_pair @ SV51 @ SV144 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[914]) ).

thf(933,plain,
    ! [SV160: $i,SV145: $i,SV51: $i,SV184: $i] :
      ( ( ( SV184 = SV51 )
        = $true )
      | ( ( SV184 = SV145 )
        = $true )
      | ( ( in @ SV184 @ SV160 )
        = $false )
      | ( ( SV160
          = ( unordered_pair @ SV51 @ SV145 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[915]) ).

thf(934,plain,
    ! [SV145: $i,SV160: $i,SV51: $i,SV191: $i] :
      ( ( ( ( SV191 != SV51 )
          | ( in @ SV191 @ SV160 ) )
        = $true )
      | ( ( SV160
          = ( unordered_pair @ SV51 @ SV145 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[916]) ).

thf(935,plain,
    ! [SV51: $i,SV160: $i,SV145: $i,SV192: $i] :
      ( ( ( ( SV192 != SV145 )
          | ( in @ SV192 @ SV160 ) )
        = $true )
      | ( ( SV160
          = ( unordered_pair @ SV51 @ SV145 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[917]) ).

thf(936,plain,
    ! [SV154: $i,SV47: $i,SV126: $i,SV181: $i] :
      ( ( ( in @ SV181 @ SV126 )
        = $false )
      | ( ( in @ SV181 @ SV47 )
        = $false )
      | ( ( in @ SV181 @ SV154 )
        = $true )
      | ( ( SV154
          = ( set_intersection2 @ SV47 @ SV126 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[919]) ).

thf(937,plain,
    ! [SV126: $i,SV47: $i,SV154: $i,SV185: $i] :
      ( ( ( ~ ( in @ SV185 @ SV154 ) )
        = $true )
      | ( ( in @ SV185 @ SV47 )
        = $true )
      | ( ( SV154
          = ( set_intersection2 @ SV47 @ SV126 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[920]) ).

thf(938,plain,
    ! [SV47: $i,SV126: $i,SV154: $i,SV186: $i] :
      ( ( ( ~ ( in @ SV186 @ SV154 ) )
        = $true )
      | ( ( in @ SV186 @ SV126 )
        = $true )
      | ( ( SV154
          = ( set_intersection2 @ SV47 @ SV126 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[921]) ).

thf(939,plain,
    ! [SV132: $i,SV48: $i,SV156: $i,SV187: $i] :
      ( ( ( ~ ( in @ SV187 @ SV156 ) )
        = $true )
      | ( ( in @ SV187 @ SV48 )
        = $true )
      | ( ( SV156
          = ( set_difference @ SV48 @ SV132 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[924]) ).

thf(940,plain,
    ! [SV48: $i,SV132: $i,SV156: $i,SV188: $i] :
      ( ( ( ~ ( in @ SV188 @ SV156 ) )
        = $true )
      | ( ( ~ ( in @ SV188 @ SV132 ) )
        = $true )
      | ( ( SV156
          = ( set_difference @ SV48 @ SV132 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[925]) ).

thf(941,plain,
    ! [SV49: $i,SV139: $i,SV157: $i] :
      ( ( ( in @ ( sK9_D @ SV157 @ SV139 @ SV49 ) @ SV49 )
        = $false )
      | ( ( in @ ( sK9_D @ SV157 @ SV139 @ SV49 ) @ SV157 )
        = $false )
      | ( ( SV157
          = ( set_union2 @ SV49 @ SV139 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[926]) ).

thf(942,plain,
    ! [SV49: $i,SV139: $i,SV157: $i] :
      ( ( ( in @ ( sK9_D @ SV157 @ SV139 @ SV49 ) @ SV139 )
        = $false )
      | ( ( in @ ( sK9_D @ SV157 @ SV139 @ SV49 ) @ SV157 )
        = $false )
      | ( ( SV157
          = ( set_union2 @ SV49 @ SV139 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[927]) ).

thf(943,plain,
    ! [SV140: $i,SV158: $i,SV49: $i,SV189: $i] :
      ( ( ( ~ ( in @ SV189 @ SV49 ) )
        = $true )
      | ( ( in @ SV189 @ SV158 )
        = $true )
      | ( ( SV158
          = ( set_union2 @ SV49 @ SV140 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[929]) ).

thf(944,plain,
    ! [SV49: $i,SV158: $i,SV140: $i,SV190: $i] :
      ( ( ( ~ ( in @ SV190 @ SV140 ) )
        = $true )
      | ( ( in @ SV190 @ SV158 )
        = $true )
      | ( ( SV158
          = ( set_union2 @ SV49 @ SV140 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[930]) ).

thf(945,plain,
    ! [SV51: $i,SV144: $i,SV159: $i] :
      ( ( ( ( sK10_D @ SV159 @ SV144 @ SV51 )
          = SV51 )
        = $false )
      | ( ( in @ ( sK10_D @ SV159 @ SV144 @ SV51 ) @ SV159 )
        = $false )
      | ( ( SV159
          = ( unordered_pair @ SV51 @ SV144 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[931]) ).

thf(946,plain,
    ! [SV51: $i,SV144: $i,SV159: $i] :
      ( ( ( ( sK10_D @ SV159 @ SV144 @ SV51 )
          = SV144 )
        = $false )
      | ( ( in @ ( sK10_D @ SV159 @ SV144 @ SV51 ) @ SV159 )
        = $false )
      | ( ( SV159
          = ( unordered_pair @ SV51 @ SV144 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[932]) ).

thf(947,plain,
    ! [SV145: $i,SV160: $i,SV51: $i,SV191: $i] :
      ( ( ( ( SV191 != SV51 ) )
        = $true )
      | ( ( in @ SV191 @ SV160 )
        = $true )
      | ( ( SV160
          = ( unordered_pair @ SV51 @ SV145 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[934]) ).

thf(948,plain,
    ! [SV51: $i,SV160: $i,SV145: $i,SV192: $i] :
      ( ( ( ( SV192 != SV145 ) )
        = $true )
      | ( ( in @ SV192 @ SV160 )
        = $true )
      | ( ( SV160
          = ( unordered_pair @ SV51 @ SV145 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[935]) ).

thf(949,plain,
    ! [SV126: $i,SV47: $i,SV154: $i,SV185: $i] :
      ( ( ( in @ SV185 @ SV154 )
        = $false )
      | ( ( in @ SV185 @ SV47 )
        = $true )
      | ( ( SV154
          = ( set_intersection2 @ SV47 @ SV126 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[937]) ).

thf(950,plain,
    ! [SV47: $i,SV126: $i,SV154: $i,SV186: $i] :
      ( ( ( in @ SV186 @ SV154 )
        = $false )
      | ( ( in @ SV186 @ SV126 )
        = $true )
      | ( ( SV154
          = ( set_intersection2 @ SV47 @ SV126 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[938]) ).

thf(951,plain,
    ! [SV132: $i,SV48: $i,SV156: $i,SV187: $i] :
      ( ( ( in @ SV187 @ SV156 )
        = $false )
      | ( ( in @ SV187 @ SV48 )
        = $true )
      | ( ( SV156
          = ( set_difference @ SV48 @ SV132 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[939]) ).

thf(952,plain,
    ! [SV48: $i,SV132: $i,SV156: $i,SV188: $i] :
      ( ( ( in @ SV188 @ SV156 )
        = $false )
      | ( ( ~ ( in @ SV188 @ SV132 ) )
        = $true )
      | ( ( SV156
          = ( set_difference @ SV48 @ SV132 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[940]) ).

thf(953,plain,
    ! [SV140: $i,SV158: $i,SV49: $i,SV189: $i] :
      ( ( ( in @ SV189 @ SV49 )
        = $false )
      | ( ( in @ SV189 @ SV158 )
        = $true )
      | ( ( SV158
          = ( set_union2 @ SV49 @ SV140 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[943]) ).

thf(954,plain,
    ! [SV49: $i,SV158: $i,SV140: $i,SV190: $i] :
      ( ( ( in @ SV190 @ SV140 )
        = $false )
      | ( ( in @ SV190 @ SV158 )
        = $true )
      | ( ( SV158
          = ( set_union2 @ SV49 @ SV140 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[944]) ).

thf(955,plain,
    ! [SV145: $i,SV160: $i,SV51: $i,SV191: $i] :
      ( ( ( SV191 = SV51 )
        = $false )
      | ( ( in @ SV191 @ SV160 )
        = $true )
      | ( ( SV160
          = ( unordered_pair @ SV51 @ SV145 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[947]) ).

thf(956,plain,
    ! [SV51: $i,SV160: $i,SV145: $i,SV192: $i] :
      ( ( ( SV192 = SV145 )
        = $false )
      | ( ( in @ SV192 @ SV160 )
        = $true )
      | ( ( SV160
          = ( unordered_pair @ SV51 @ SV145 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[948]) ).

thf(957,plain,
    ! [SV48: $i,SV156: $i,SV132: $i,SV188: $i] :
      ( ( ( in @ SV188 @ SV132 )
        = $false )
      | ( ( in @ SV188 @ SV156 )
        = $false )
      | ( ( SV156
          = ( set_difference @ SV48 @ SV132 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[952]) ).

thf(958,plain,
    $false = $true,
    inference(fo_atp_e,[status(thm)],[225,957,956,955,954,953,951,950,949,946,945,942,941,936,933,928,923,922,918,903,902,898,897,890,889,877,876,867,862,859,849,828,820,819,818,811,809,808,803,802,794,788,777,774,768,763,762,752,749,726,721,716,715,714,713,712,711,706,699,698,695,694,680,679,678,677,676,636,635,629,595,586,585,584,583,582,579,578,577,572,532,531,530,524,521,519,515,511,471,458,410,407,406,405,399,395,393,391,390,384,378,358,357,353,352,351,350,348,347,345,344,331,321,277,271,270,269,268,267,266,265,264]) ).

thf(959,plain,
    $false,
    inference(solved_all_splits,[solved_all_splits(join,[])],[958]) ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.07/0.11  % Problem  : SEU154+2 : TPTP v8.1.0. Released v3.3.0.
% 0.07/0.12  % Command  : leo --timeout %d --proofoutput 1 --foatp e --atp e=./eprover %s
% 0.12/0.33  % Computer : n024.cluster.edu
% 0.12/0.33  % Model    : x86_64 x86_64
% 0.12/0.33  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.12/0.33  % Memory   : 8042.1875MB
% 0.12/0.33  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.12/0.33  % CPULimit : 300
% 0.12/0.33  % WCLimit  : 600
% 0.12/0.33  % DateTime : Mon Jun 20 03:31:17 EDT 2022
% 0.12/0.33  % CPUTime  : 
% 0.12/0.36  .
% 0.12/0.37  
% 0.12/0.37   No.of.Axioms: 76
% 0.12/0.37  
% 0.12/0.37   Length.of.Defs: 0
% 0.12/0.37  
% 0.12/0.37   Contains.Choice.Funs: false
% 0.18/0.38  ..
% 0.18/0.41  (rf:0,axioms:76,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:78,loop_count:0,foatp_calls:0,translation:fof_full)...............................................................
% 1.28/1.51  
% 1.28/1.51  ********************************
% 1.28/1.51  *   All subproblems solved!    *
% 1.28/1.51  ********************************
% 1.28/1.51  % SZS status Theorem for /export/starexec/sandbox/benchmark/theBenchmark.p : (rf:0,axioms:77,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:958,loop_count:0,foatp_calls:1,translation:fof_full)
% 1.59/1.79  
% 1.59/1.79  %**** Beginning of derivation protocol ****
% 1.59/1.79  % SZS output start CNFRefutation
% See solution above
% 1.59/1.79  
% 1.59/1.79  %**** End of derivation protocol ****
% 1.59/1.79  %**** no. of clauses in derivation: 959 ****
% 1.59/1.79  %**** clause counter: 958 ****
% 1.59/1.79  
% 1.59/1.79  % SZS status Theorem for /export/starexec/sandbox/benchmark/theBenchmark.p : (rf:0,axioms:77,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:958,loop_count:0,foatp_calls:1,translation:fof_full)
%------------------------------------------------------------------------------