TSTP Solution File: SEU144+2 by LEO-II---1.7.0

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : LEO-II---1.7.0
% Problem  : SEU144+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 : n017.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 12:07:04 EDT 2022

% Result   : Theorem 33.81s 34.01s
% Output   : CNFRefutation 34.56s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :   24
%            Number of leaves      :   90
% Syntax   : Number of formulae    : 1469 ( 770 unt;  25 typ;   0 def)
%            Number of atoms       : 9462 (3729 equ;   0 cnn)
%            Maximal formula atoms :    6 (   6 avg)
%            Number of connectives : 19700 (3732   ~;3289   |; 158   &;12438   @)
%                                         (  43 <=>;  40  =>;   0  <=;   0 <~>)
%            Maximal formula depth :   11 (   3 avg)
%            Number of types       :    2 (   0 usr)
%            Number of type conns  :   41 (  41   >;   0   *;   0   +;   0  <<)
%            Number of symbols     :   28 (  25 usr;   7 con; 0-3 aty)
%            Number of variables   : 4090 (   0   ^4082   !;   8   ?;4090   :)

% 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_proper_subset,type,
    proper_subset: $i > $i > $o ).

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

thf(tp_sK11_B,type,
    sK11_B: $i > $i ).

thf(tp_sK12_C,type,
    sK12_C: $i > $i > $i ).

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

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

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

thf(tp_sK2_SY126,type,
    sK2_SY126: $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/sandbox2/benchmark/theBenchmark.p',t8_boole) ).

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

thf(18,axiom,
    empty @ empty_set,
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',fc1_xboole_0) ).

thf(19,axiom,
    $true,
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',dt_k4_xboole_0) ).

thf(20,axiom,
    $true,
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',dt_k3_xboole_0) ).

thf(21,axiom,
    $true,
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',dt_k2_xboole_0) ).

thf(22,axiom,
    $true,
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',dt_k2_tarski) ).

thf(23,axiom,
    $true,
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',dt_k1_xboole_0) ).

thf(24,axiom,
    $true,
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',dt_k1_tarski) ).

thf(25,axiom,
    ! [A: $i,B: $i] :
      ( ( proper_subset @ A @ B )
    <=> ( ( subset @ A @ B )
        & ( A != B ) ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',d8_xboole_0) ).

thf(26,axiom,
    ! [A: $i,B: $i] :
      ( ( disjoint @ A @ B )
    <=> ( ( set_intersection2 @ A @ B )
        = empty_set ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',d7_xboole_0) ).

thf(27,axiom,
    ! [A: $i,B: $i,C: $i] :
      ( ( C
        = ( set_difference @ A @ B ) )
    <=> ! [D: $i] :
          ( ( in @ D @ C )
        <=> ( ( in @ D @ A )
            & ~ ( in @ D @ B ) ) ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',d4_xboole_0) ).

thf(28,axiom,
    ! [A: $i,B: $i,C: $i] :
      ( ( C
        = ( set_intersection2 @ A @ B ) )
    <=> ! [D: $i] :
          ( ( in @ D @ C )
        <=> ( ( in @ D @ A )
            & ( in @ D @ B ) ) ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',d3_xboole_0) ).

thf(29,axiom,
    ! [A: $i,B: $i] :
      ( ( subset @ A @ B )
    <=> ! [C: $i] :
          ( ( in @ C @ A )
         => ( in @ C @ B ) ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',d3_tarski) ).

thf(30,axiom,
    ! [A: $i,B: $i,C: $i] :
      ( ( C
        = ( set_union2 @ A @ B ) )
    <=> ! [D: $i] :
          ( ( in @ D @ C )
        <=> ( ( in @ D @ A )
            | ( in @ D @ B ) ) ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',d2_xboole_0) ).

thf(31,axiom,
    ! [A: $i,B: $i,C: $i] :
      ( ( C
        = ( unordered_pair @ A @ B ) )
    <=> ! [D: $i] :
          ( ( in @ D @ C )
        <=> ( ( D = A )
            | ( D = B ) ) ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',d2_tarski) ).

thf(32,axiom,
    ! [A: $i] :
      ( ( A = empty_set )
    <=> ! [B: $i] :
          ~ ( in @ B @ A ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',d1_xboole_0) ).

thf(33,axiom,
    ! [A: $i,B: $i] :
      ( ( B
        = ( singleton @ A ) )
    <=> ! [C: $i] :
          ( ( in @ C @ B )
        <=> ( C = A ) ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',d1_tarski) ).

thf(34,axiom,
    ! [A: $i,B: $i] :
      ( ( A = B )
    <=> ( ( subset @ A @ B )
        & ( subset @ B @ A ) ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',d10_xboole_0) ).

thf(35,axiom,
    ! [A: $i,B: $i] :
      ( ( set_intersection2 @ A @ B )
      = ( set_intersection2 @ B @ A ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',commutativity_k3_xboole_0) ).

thf(36,axiom,
    ! [A: $i,B: $i] :
      ( ( set_union2 @ A @ B )
      = ( set_union2 @ B @ A ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',commutativity_k2_xboole_0) ).

thf(37,axiom,
    ! [A: $i,B: $i] :
      ( ( unordered_pair @ A @ B )
      = ( unordered_pair @ B @ A ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',commutativity_k2_tarski) ).

thf(38,axiom,
    ! [A: $i,B: $i] :
      ( ( proper_subset @ A @ B )
     => ~ ( proper_subset @ B @ A ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',antisymmetry_r2_xboole_0) ).

thf(39,axiom,
    ! [A: $i,B: $i] :
      ( ( in @ A @ B )
     => ~ ( in @ B @ A ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',antisymmetry_r2_hidden) ).

thf(40,axiom,
    ! [A: $i,B: $i,C: $i] :
      ( ( ( subset @ A @ B )
        & ( subset @ C @ B ) )
     => ( subset @ ( set_union2 @ A @ C ) @ B ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',t8_xboole_1) ).

thf(41,axiom,
    ! [A: $i,B: $i] :
      ( ( disjoint @ A @ B )
    <=> ( ( set_difference @ A @ B )
        = A ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',t83_xboole_1) ).

thf(42,axiom,
    ! [A: $i,B: $i] : ( subset @ A @ ( set_union2 @ A @ B ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',t7_xboole_1) ).

thf(43,axiom,
    ! [A: $i] :
      ( ( unordered_pair @ A @ A )
      = ( singleton @ A ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',t69_enumset1) ).

thf(44,axiom,
    ! [A: $i,B: $i,C: $i] :
      ( ( ( subset @ A @ B )
        & ( disjoint @ B @ C ) )
     => ( disjoint @ A @ C ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',t63_xboole_1) ).

thf(45,axiom,
    ! [A: $i,B: $i] :
      ~ ( ( subset @ A @ B )
        & ( proper_subset @ B @ A ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',t60_xboole_1) ).

thf(46,axiom,
    ! [A: $i,B: $i] :
      ( ~ ( ~ ( disjoint @ A @ B )
          & ! [C: $i] :
              ~ ( in @ C @ ( set_intersection2 @ A @ B ) ) )
      & ~ ( ? [C: $i] : ( in @ C @ ( set_intersection2 @ A @ B ) )
          & ( disjoint @ A @ B ) ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',t4_xboole_0) ).

thf(47,axiom,
    ! [A: $i,B: $i] :
      ( ( set_difference @ A @ ( set_difference @ A @ B ) )
      = ( set_intersection2 @ A @ B ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',t48_xboole_1) ).

thf(48,axiom,
    ! [A: $i,B: $i] :
      ( ( subset @ A @ B )
     => ( B
        = ( set_union2 @ A @ ( set_difference @ B @ A ) ) ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',t45_xboole_1) ).

thf(49,axiom,
    ! [A: $i,B: $i] :
      ( ( set_difference @ ( set_union2 @ A @ B ) @ B )
      = ( set_difference @ A @ B ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',t40_xboole_1) ).

thf(50,axiom,
    ! [A: $i] :
      ( ( subset @ A @ empty_set )
     => ( A = empty_set ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',t3_xboole_1) ).

thf(51,axiom,
    ! [A: $i,B: $i] :
      ( ~ ( ~ ( disjoint @ A @ B )
          & ! [C: $i] :
              ~ ( ( in @ C @ A )
                & ( in @ C @ B ) ) )
      & ~ ( ? [C: $i] :
              ( ( in @ C @ A )
              & ( in @ C @ B ) )
          & ( disjoint @ A @ B ) ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',t3_xboole_0) ).

thf(52,axiom,
    ! [A: $i,B: $i] :
      ( ( set_union2 @ A @ ( set_difference @ B @ A ) )
      = ( set_union2 @ A @ B ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',t39_xboole_1) ).

thf(53,axiom,
    ! [A: $i,B: $i] :
      ( ( ( set_difference @ A @ B )
        = empty_set )
    <=> ( subset @ A @ B ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',t37_xboole_1) ).

thf(54,axiom,
    ! [A: $i,B: $i] : ( subset @ ( set_difference @ A @ B ) @ A ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',t36_xboole_1) ).

thf(55,axiom,
    ! [A: $i,B: $i,C: $i] :
      ( ( subset @ A @ B )
     => ( subset @ ( set_difference @ A @ C ) @ ( set_difference @ B @ C ) ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',t33_xboole_1) ).

thf(56,axiom,
    ! [A: $i] : ( subset @ empty_set @ A ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',t2_xboole_1) ).

thf(57,axiom,
    ! [A: $i,B: $i] :
      ( ( subset @ A @ B )
     => ( ( set_intersection2 @ A @ B )
        = A ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',t28_xboole_1) ).

thf(58,axiom,
    ! [A: $i,B: $i,C: $i] :
      ( ( subset @ A @ B )
     => ( subset @ ( set_intersection2 @ A @ C ) @ ( set_intersection2 @ B @ C ) ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',t26_xboole_1) ).

thf(59,axiom,
    ! [A: $i,B: $i,C: $i] :
      ( ( ( subset @ A @ B )
        & ( subset @ B @ C ) )
     => ( subset @ A @ C ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',t1_xboole_1) ).

thf(60,axiom,
    ! [A: $i,B: $i,C: $i] :
      ( ( ( subset @ A @ B )
        & ( subset @ A @ C ) )
     => ( subset @ A @ ( set_intersection2 @ B @ C ) ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',t19_xboole_1) ).

thf(61,axiom,
    ! [A: $i,B: $i] : ( subset @ ( set_intersection2 @ A @ B ) @ A ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',t17_xboole_1) ).

thf(62,axiom,
    ! [A: $i,B: $i] :
      ( ( subset @ A @ B )
     => ( ( set_union2 @ A @ B )
        = B ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',t12_xboole_1) ).

thf(63,axiom,
    ! [A: $i,B: $i] :
      ( ( ( set_difference @ A @ B )
        = empty_set )
    <=> ( subset @ A @ B ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',l32_xboole_1) ).

thf(64,axiom,
    ! [A: $i] :
      ( ( singleton @ A )
     != empty_set ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',l1_zfmisc_1) ).

thf(65,conjecture,
    ! [A: $i,B: $i] :
      ( ( subset @ ( singleton @ A ) @ B )
    <=> ( in @ A @ B ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',l2_zfmisc_1) ).

thf(66,negated_conjecture,
    ( ( ! [A: $i,B: $i] :
          ( ( subset @ ( singleton @ A ) @ B )
        <=> ( in @ A @ B ) ) )
    = $false ),
    inference(negate_conjecture,[status(cth)],[65]) ).

thf(67,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( subset @ ( singleton @ A ) @ B )
        <=> ( in @ A @ B ) ) )
    = $false ),
    inference(unfold_def,[status(thm)],[66]) ).

thf(68,plain,
    ( ( ! [A: $i,B: $i] :
          ~ ( ( empty @ A )
            & ( A != B )
            & ( empty @ B ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[1]) ).

thf(69,plain,
    ( ( ! [A: $i,B: $i] :
          ~ ( ( in @ A @ B )
            & ( empty @ B ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[2]) ).

thf(70,plain,
    ( ( ! [A: $i] :
          ( ( empty @ A )
         => ( A = empty_set ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[3]) ).

thf(71,plain,
    ( ( ! [A: $i] :
          ( ( set_difference @ empty_set @ A )
          = empty_set ) )
    = $true ),
    inference(unfold_def,[status(thm)],[4]) ).

thf(72,plain,
    ( ( ! [A: $i] :
          ( ( set_difference @ A @ empty_set )
          = A ) )
    = $true ),
    inference(unfold_def,[status(thm)],[5]) ).

thf(73,plain,
    ( ( ! [A: $i,B: $i] :
          ( ! [C: $i] :
              ( ( in @ C @ A )
            <=> ( in @ C @ B ) )
         => ( A = B ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[6]) ).

thf(74,plain,
    ( ( ! [A: $i] :
          ( ( set_intersection2 @ A @ empty_set )
          = empty_set ) )
    = $true ),
    inference(unfold_def,[status(thm)],[7]) ).

thf(75,plain,
    ( ( ! [A: $i] :
          ( ( set_union2 @ A @ empty_set )
          = A ) )
    = $true ),
    inference(unfold_def,[status(thm)],[8]) ).

thf(76,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( disjoint @ A @ B )
         => ( disjoint @ B @ A ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[9]) ).

thf(77,plain,
    ( ( ! [A: $i,B: $i] : ( subset @ A @ A ) )
    = $true ),
    inference(unfold_def,[status(thm)],[10]) ).

thf(78,plain,
    ( ( ? [A: $i] :
          ~ ( empty @ A ) )
    = $true ),
    inference(unfold_def,[status(thm)],[11]) ).

thf(79,plain,
    ( ( ? [A: $i] : ( empty @ A ) )
    = $true ),
    inference(unfold_def,[status(thm)],[12]) ).

thf(80,plain,
    ( ( ! [A: $i,B: $i] :
          ~ ( proper_subset @ A @ A ) )
    = $true ),
    inference(unfold_def,[status(thm)],[13]) ).

thf(81,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( set_intersection2 @ A @ A )
          = A ) )
    = $true ),
    inference(unfold_def,[status(thm)],[14]) ).

thf(82,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( set_union2 @ A @ A )
          = A ) )
    = $true ),
    inference(unfold_def,[status(thm)],[15]) ).

thf(83,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( empty @ A )
         => ~ ( empty @ ( set_union2 @ B @ A ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[16]) ).

thf(84,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( empty @ A )
         => ~ ( empty @ ( set_union2 @ A @ B ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[17]) ).

thf(85,plain,
    ( ( empty @ empty_set )
    = $true ),
    inference(unfold_def,[status(thm)],[18]) ).

thf(86,plain,
    $true = $true,
    inference(unfold_def,[status(thm)],[19]) ).

thf(87,plain,
    $true = $true,
    inference(unfold_def,[status(thm)],[20]) ).

thf(88,plain,
    $true = $true,
    inference(unfold_def,[status(thm)],[21]) ).

thf(89,plain,
    $true = $true,
    inference(unfold_def,[status(thm)],[22]) ).

thf(90,plain,
    $true = $true,
    inference(unfold_def,[status(thm)],[23]) ).

thf(91,plain,
    $true = $true,
    inference(unfold_def,[status(thm)],[24]) ).

thf(92,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( proper_subset @ A @ B )
        <=> ( ( subset @ A @ B )
            & ( A != B ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[25]) ).

thf(93,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( disjoint @ A @ B )
        <=> ( ( set_intersection2 @ A @ B )
            = empty_set ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[26]) ).

thf(94,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)],[27]) ).

thf(95,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)],[28]) ).

thf(96,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( subset @ A @ B )
        <=> ! [C: $i] :
              ( ( in @ C @ A )
             => ( in @ C @ B ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[29]) ).

thf(97,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)],[30]) ).

thf(98,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)],[31]) ).

thf(99,plain,
    ( ( ! [A: $i] :
          ( ( A = empty_set )
        <=> ! [B: $i] :
              ~ ( in @ B @ A ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[32]) ).

thf(100,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( B
            = ( singleton @ A ) )
        <=> ! [C: $i] :
              ( ( in @ C @ B )
            <=> ( C = A ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[33]) ).

thf(101,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( A = B )
        <=> ( ( subset @ A @ B )
            & ( subset @ B @ A ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[34]) ).

thf(102,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( set_intersection2 @ A @ B )
          = ( set_intersection2 @ B @ A ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[35]) ).

thf(103,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( set_union2 @ A @ B )
          = ( set_union2 @ B @ A ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[36]) ).

thf(104,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( unordered_pair @ A @ B )
          = ( unordered_pair @ B @ A ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[37]) ).

thf(105,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( proper_subset @ A @ B )
         => ~ ( proper_subset @ B @ A ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[38]) ).

thf(106,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( in @ A @ B )
         => ~ ( in @ B @ A ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[39]) ).

thf(107,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)],[40]) ).

thf(108,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( disjoint @ A @ B )
        <=> ( ( set_difference @ A @ B )
            = A ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[41]) ).

thf(109,plain,
    ( ( ! [A: $i,B: $i] : ( subset @ A @ ( set_union2 @ A @ B ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[42]) ).

thf(110,plain,
    ( ( ! [A: $i] :
          ( ( unordered_pair @ A @ A )
          = ( singleton @ A ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[43]) ).

thf(111,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ( ( subset @ A @ B )
            & ( disjoint @ B @ C ) )
         => ( disjoint @ A @ C ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[44]) ).

thf(112,plain,
    ( ( ! [A: $i,B: $i] :
          ~ ( ( subset @ A @ B )
            & ( proper_subset @ B @ A ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[45]) ).

thf(113,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)],[46]) ).

thf(114,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( set_difference @ A @ ( set_difference @ A @ B ) )
          = ( set_intersection2 @ A @ B ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[47]) ).

thf(115,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( subset @ A @ B )
         => ( B
            = ( set_union2 @ A @ ( set_difference @ B @ A ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[48]) ).

thf(116,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( set_difference @ ( set_union2 @ A @ B ) @ B )
          = ( set_difference @ A @ B ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[49]) ).

thf(117,plain,
    ( ( ! [A: $i] :
          ( ( subset @ A @ empty_set )
         => ( A = empty_set ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[50]) ).

thf(118,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)],[51]) ).

thf(119,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( set_union2 @ A @ ( set_difference @ B @ A ) )
          = ( set_union2 @ A @ B ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[52]) ).

thf(120,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( ( set_difference @ A @ B )
            = empty_set )
        <=> ( subset @ A @ B ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[53]) ).

thf(121,plain,
    ( ( ! [A: $i,B: $i] : ( subset @ ( set_difference @ A @ B ) @ A ) )
    = $true ),
    inference(unfold_def,[status(thm)],[54]) ).

thf(122,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)],[55]) ).

thf(123,plain,
    ( ( ! [A: $i] : ( subset @ empty_set @ A ) )
    = $true ),
    inference(unfold_def,[status(thm)],[56]) ).

thf(124,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( subset @ A @ B )
         => ( ( set_intersection2 @ A @ B )
            = A ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[57]) ).

thf(125,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)],[58]) ).

thf(126,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ( ( subset @ A @ B )
            & ( subset @ B @ C ) )
         => ( subset @ A @ C ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[59]) ).

thf(127,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)],[60]) ).

thf(128,plain,
    ( ( ! [A: $i,B: $i] : ( subset @ ( set_intersection2 @ A @ B ) @ A ) )
    = $true ),
    inference(unfold_def,[status(thm)],[61]) ).

thf(129,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( subset @ A @ B )
         => ( ( set_union2 @ A @ B )
            = B ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[62]) ).

thf(130,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( ( set_difference @ A @ B )
            = empty_set )
        <=> ( subset @ A @ B ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[63]) ).

thf(131,plain,
    ( ( ! [A: $i] :
          ( ( singleton @ A )
         != empty_set ) )
    = $true ),
    inference(unfold_def,[status(thm)],[64]) ).

thf(132,plain,
    ( ( ! [SY126: $i] :
          ( ( subset @ ( singleton @ sK1_A ) @ SY126 )
        <=> ( in @ sK1_A @ SY126 ) ) )
    = $false ),
    inference(extcnf_forall_neg,[status(esa)],[67]) ).

thf(133,plain,
    ( ( ( subset @ ( singleton @ sK1_A ) @ sK2_SY126 )
    <=> ( in @ sK1_A @ sK2_SY126 ) )
    = $false ),
    inference(extcnf_forall_neg,[status(esa)],[132]) ).

thf(134,plain,
    ( ( ( subset @ ( singleton @ sK1_A ) @ sK2_SY126 )
     => ( in @ sK1_A @ sK2_SY126 ) )
    = $false ),
    inference(split_conjecture,[split_conjecture(split,[])],[133]) ).

thf(135,plain,
    ( ( ( in @ sK1_A @ sK2_SY126 )
     => ( subset @ ( singleton @ sK1_A ) @ sK2_SY126 ) )
    = $false ),
    inference(split_conjecture,[split_conjecture(split,[])],[133]) ).

thf(136,plain,
    ( ( ~ ( ( subset @ ( singleton @ sK1_A ) @ sK2_SY126 )
         => ( in @ sK1_A @ sK2_SY126 ) ) )
    = $true ),
    inference(polarity_switch,[status(thm)],[134]) ).

thf(137,plain,
    ( ( ~ ( ( in @ sK1_A @ sK2_SY126 )
         => ( subset @ ( singleton @ sK1_A ) @ sK2_SY126 ) ) )
    = $true ),
    inference(polarity_switch,[status(thm)],[135]) ).

thf(138,plain,
    ( ( ( subset @ ( singleton @ sK1_A ) @ sK2_SY126 )
      & ~ ( in @ sK1_A @ sK2_SY126 ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[136]) ).

thf(139,plain,
    ( ( ( in @ sK1_A @ sK2_SY126 )
      & ~ ( subset @ ( singleton @ sK1_A ) @ sK2_SY126 ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[137]) ).

thf(140,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( A = B )
          | ~ ( empty @ A )
          | ~ ( empty @ B ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[68]) ).

thf(141,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( empty @ B )
          | ~ ( in @ A @ B ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[69]) ).

thf(142,plain,
    ( ( ! [A: $i] :
          ( ~ ( empty @ A )
          | ( A = empty_set ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[70]) ).

thf(143,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)],[73]) ).

thf(144,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( disjoint @ A @ B )
          | ( disjoint @ B @ A ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[76]) ).

thf(145,plain,
    ( ( ! [A: $i] : ( subset @ A @ A ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[77]) ).

thf(146,plain,
    ( ( ~ ( empty @ sK4_A ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[78]) ).

thf(147,plain,
    ( ( empty @ sK5_A )
    = $true ),
    inference(extcnf_combined,[status(esa)],[79]) ).

thf(148,plain,
    ( ( ! [A: $i] :
          ~ ( proper_subset @ A @ A ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[80]) ).

thf(149,plain,
    ( ( ! [A: $i] :
          ( ( set_intersection2 @ A @ A )
          = A ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[81]) ).

thf(150,plain,
    ( ( ! [A: $i] :
          ( ( set_union2 @ A @ A )
          = A ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[82]) ).

thf(151,plain,
    ( ( ! [A: $i] :
          ( ( empty @ A )
          | ! [B: $i] :
              ~ ( empty @ ( set_union2 @ B @ A ) ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[83]) ).

thf(152,plain,
    ( ( ! [A: $i] :
          ( ( empty @ A )
          | ! [B: $i] :
              ~ ( empty @ ( set_union2 @ A @ B ) ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[84]) ).

thf(153,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)],[92]) ).

thf(154,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)],[93]) ).

thf(155,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)],[94]) ).

thf(156,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)],[95]) ).

thf(157,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)],[96]) ).

thf(158,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)],[97]) ).

thf(159,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)],[98]) ).

thf(160,plain,
    ( ( ! [A: $i] :
          ( ( in @ ( sK11_B @ A ) @ A )
          | ( A = empty_set ) )
      & ! [A: $i] :
          ( ( A != empty_set )
          | ! [B: $i] :
              ~ ( in @ B @ A ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[99]) ).

thf(161,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( ( ( ( sK12_C @ B @ A )
               != A )
              | ~ ( in @ ( sK12_C @ B @ A ) @ B ) )
            & ( ( ( sK12_C @ B @ A )
                = A )
              | ( in @ ( sK12_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)],[100]) ).

thf(162,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)],[101]) ).

thf(163,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( proper_subset @ A @ B )
          | ~ ( proper_subset @ B @ A ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[105]) ).

thf(164,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( in @ A @ B )
          | ~ ( in @ B @ A ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[106]) ).

thf(165,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)],[107]) ).

thf(166,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)],[108]) ).

thf(167,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ~ ( disjoint @ B @ C )
          | ~ ( subset @ A @ B )
          | ( disjoint @ A @ C ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[111]) ).

thf(168,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( proper_subset @ B @ A )
          | ~ ( subset @ A @ B ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[112]) ).

thf(169,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( disjoint @ A @ B )
          | ( in @ ( sK13_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)],[113]) ).

thf(170,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( subset @ A @ B )
          | ( B
            = ( set_union2 @ A @ ( set_difference @ B @ A ) ) ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[115]) ).

thf(171,plain,
    ( ( ! [A: $i] :
          ( ~ ( subset @ A @ empty_set )
          | ( A = empty_set ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[117]) ).

thf(172,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( disjoint @ A @ B )
          | ( ( in @ ( sK14_C @ B @ A ) @ A )
            & ( in @ ( sK14_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)],[118]) ).

thf(173,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)],[120]) ).

thf(174,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)],[122]) ).

thf(175,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( subset @ A @ B )
          | ( ( set_intersection2 @ A @ B )
            = A ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[124]) ).

thf(176,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)],[125]) ).

thf(177,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ~ ( subset @ A @ B )
          | ~ ( subset @ B @ C )
          | ( subset @ A @ C ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[126]) ).

thf(178,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)],[127]) ).

thf(179,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( subset @ A @ B )
          | ( ( set_union2 @ A @ B )
            = B ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[129]) ).

thf(180,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)],[130]) ).

thf(181,plain,
    ( ( ! [A: $i] :
          ( ( singleton @ A )
         != empty_set ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[131]) ).

thf(182,plain,
    ( ( ! [A: $i] :
          ( ( singleton @ A )
         != empty_set ) )
    = $true ),
    inference(copy,[status(thm)],[181]) ).

thf(183,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)],[180]) ).

thf(184,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( subset @ A @ B )
          | ( ( set_union2 @ A @ B )
            = B ) ) )
    = $true ),
    inference(copy,[status(thm)],[179]) ).

thf(185,plain,
    ( ( ! [A: $i,B: $i] : ( subset @ ( set_intersection2 @ A @ B ) @ A ) )
    = $true ),
    inference(copy,[status(thm)],[128]) ).

thf(186,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ~ ( subset @ A @ B )
          | ~ ( subset @ A @ C )
          | ( subset @ A @ ( set_intersection2 @ B @ C ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[178]) ).

thf(187,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ~ ( subset @ A @ B )
          | ~ ( subset @ B @ C )
          | ( subset @ A @ C ) ) )
    = $true ),
    inference(copy,[status(thm)],[177]) ).

thf(188,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( subset @ A @ B )
          | ! [C: $i] : ( subset @ ( set_intersection2 @ A @ C ) @ ( set_intersection2 @ B @ C ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[176]) ).

thf(189,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( subset @ A @ B )
          | ( ( set_intersection2 @ A @ B )
            = A ) ) )
    = $true ),
    inference(copy,[status(thm)],[175]) ).

thf(190,plain,
    ( ( ! [A: $i] : ( subset @ empty_set @ A ) )
    = $true ),
    inference(copy,[status(thm)],[123]) ).

thf(191,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( subset @ A @ B )
          | ! [C: $i] : ( subset @ ( set_difference @ A @ C ) @ ( set_difference @ B @ C ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[174]) ).

thf(192,plain,
    ( ( ! [A: $i,B: $i] : ( subset @ ( set_difference @ A @ B ) @ A ) )
    = $true ),
    inference(copy,[status(thm)],[121]) ).

thf(193,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)],[173]) ).

thf(194,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( set_union2 @ A @ ( set_difference @ B @ A ) )
          = ( set_union2 @ A @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[119]) ).

thf(195,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( disjoint @ A @ B )
          | ( ( in @ ( sK14_C @ B @ A ) @ A )
            & ( in @ ( sK14_C @ B @ A ) @ B ) ) )
      & ! [A: $i,B: $i] :
          ( ! [C: $i] :
              ( ~ ( in @ C @ A )
              | ~ ( in @ C @ B ) )
          | ~ ( disjoint @ A @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[172]) ).

thf(196,plain,
    ( ( ! [A: $i] :
          ( ~ ( subset @ A @ empty_set )
          | ( A = empty_set ) ) )
    = $true ),
    inference(copy,[status(thm)],[171]) ).

thf(197,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( set_difference @ ( set_union2 @ A @ B ) @ B )
          = ( set_difference @ A @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[116]) ).

thf(198,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( subset @ A @ B )
          | ( B
            = ( set_union2 @ A @ ( set_difference @ B @ A ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[170]) ).

thf(199,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( set_difference @ A @ ( set_difference @ A @ B ) )
          = ( set_intersection2 @ A @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[114]) ).

thf(200,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( disjoint @ A @ B )
          | ( in @ ( sK13_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)],[169]) ).

thf(201,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( proper_subset @ B @ A )
          | ~ ( subset @ A @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[168]) ).

thf(202,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ~ ( disjoint @ B @ C )
          | ~ ( subset @ A @ B )
          | ( disjoint @ A @ C ) ) )
    = $true ),
    inference(copy,[status(thm)],[167]) ).

thf(203,plain,
    ( ( ! [A: $i] :
          ( ( unordered_pair @ A @ A )
          = ( singleton @ A ) ) )
    = $true ),
    inference(copy,[status(thm)],[110]) ).

thf(204,plain,
    ( ( ! [A: $i,B: $i] : ( subset @ A @ ( set_union2 @ A @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[109]) ).

thf(205,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)],[166]) ).

thf(206,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ~ ( subset @ A @ B )
          | ~ ( subset @ C @ B )
          | ( subset @ ( set_union2 @ A @ C ) @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[165]) ).

thf(207,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( in @ A @ B )
          | ~ ( in @ B @ A ) ) )
    = $true ),
    inference(copy,[status(thm)],[164]) ).

thf(208,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( proper_subset @ A @ B )
          | ~ ( proper_subset @ B @ A ) ) )
    = $true ),
    inference(copy,[status(thm)],[163]) ).

thf(209,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( unordered_pair @ A @ B )
          = ( unordered_pair @ B @ A ) ) )
    = $true ),
    inference(copy,[status(thm)],[104]) ).

thf(210,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( set_union2 @ A @ B )
          = ( set_union2 @ B @ A ) ) )
    = $true ),
    inference(copy,[status(thm)],[103]) ).

thf(211,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( set_intersection2 @ A @ B )
          = ( set_intersection2 @ B @ A ) ) )
    = $true ),
    inference(copy,[status(thm)],[102]) ).

thf(212,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)],[162]) ).

thf(213,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( ( ( ( sK12_C @ B @ A )
               != A )
              | ~ ( in @ ( sK12_C @ B @ A ) @ B ) )
            & ( ( ( sK12_C @ B @ A )
                = A )
              | ( in @ ( sK12_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)],[161]) ).

thf(214,plain,
    ( ( ! [A: $i] :
          ( ( in @ ( sK11_B @ A ) @ A )
          | ( A = empty_set ) )
      & ! [A: $i] :
          ( ( A != empty_set )
          | ! [B: $i] :
              ~ ( in @ B @ A ) ) )
    = $true ),
    inference(copy,[status(thm)],[160]) ).

thf(215,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)],[159]) ).

thf(216,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)],[158]) ).

thf(217,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)],[157]) ).

thf(218,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)],[156]) ).

thf(219,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)],[155]) ).

thf(220,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)],[154]) ).

thf(221,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)],[153]) ).

thf(222,plain,
    $true = $true,
    inference(copy,[status(thm)],[91]) ).

thf(223,plain,
    $true = $true,
    inference(copy,[status(thm)],[90]) ).

thf(224,plain,
    $true = $true,
    inference(copy,[status(thm)],[89]) ).

thf(225,plain,
    $true = $true,
    inference(copy,[status(thm)],[88]) ).

thf(226,plain,
    $true = $true,
    inference(copy,[status(thm)],[87]) ).

thf(227,plain,
    $true = $true,
    inference(copy,[status(thm)],[86]) ).

thf(228,plain,
    ( ( empty @ empty_set )
    = $true ),
    inference(copy,[status(thm)],[85]) ).

thf(229,plain,
    ( ( ! [A: $i] :
          ( ( empty @ A )
          | ! [B: $i] :
              ~ ( empty @ ( set_union2 @ A @ B ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[152]) ).

thf(230,plain,
    ( ( ! [A: $i] :
          ( ( empty @ A )
          | ! [B: $i] :
              ~ ( empty @ ( set_union2 @ B @ A ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[151]) ).

thf(231,plain,
    ( ( ! [A: $i] :
          ( ( set_union2 @ A @ A )
          = A ) )
    = $true ),
    inference(copy,[status(thm)],[150]) ).

thf(232,plain,
    ( ( ! [A: $i] :
          ( ( set_intersection2 @ A @ A )
          = A ) )
    = $true ),
    inference(copy,[status(thm)],[149]) ).

thf(233,plain,
    ( ( ! [A: $i] :
          ~ ( proper_subset @ A @ A ) )
    = $true ),
    inference(copy,[status(thm)],[148]) ).

thf(234,plain,
    ( ( empty @ sK5_A )
    = $true ),
    inference(copy,[status(thm)],[147]) ).

thf(235,plain,
    ( ( ~ ( empty @ sK4_A ) )
    = $true ),
    inference(copy,[status(thm)],[146]) ).

thf(236,plain,
    ( ( ! [A: $i] : ( subset @ A @ A ) )
    = $true ),
    inference(copy,[status(thm)],[145]) ).

thf(237,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( disjoint @ A @ B )
          | ( disjoint @ B @ A ) ) )
    = $true ),
    inference(copy,[status(thm)],[144]) ).

thf(238,plain,
    ( ( ! [A: $i] :
          ( ( set_union2 @ A @ empty_set )
          = A ) )
    = $true ),
    inference(copy,[status(thm)],[75]) ).

thf(239,plain,
    ( ( ! [A: $i] :
          ( ( set_intersection2 @ A @ empty_set )
          = empty_set ) )
    = $true ),
    inference(copy,[status(thm)],[74]) ).

thf(240,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)],[143]) ).

thf(241,plain,
    ( ( ! [A: $i] :
          ( ( set_difference @ A @ empty_set )
          = A ) )
    = $true ),
    inference(copy,[status(thm)],[72]) ).

thf(242,plain,
    ( ( ! [A: $i] :
          ( ( set_difference @ empty_set @ A )
          = empty_set ) )
    = $true ),
    inference(copy,[status(thm)],[71]) ).

thf(243,plain,
    ( ( ! [A: $i] :
          ( ~ ( empty @ A )
          | ( A = empty_set ) ) )
    = $true ),
    inference(copy,[status(thm)],[142]) ).

thf(244,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( empty @ B )
          | ~ ( in @ A @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[141]) ).

thf(245,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( A = B )
          | ~ ( empty @ A )
          | ~ ( empty @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[140]) ).

thf(246,plain,
    ( ( ( subset @ ( singleton @ sK1_A ) @ sK2_SY126 )
      & ~ ( in @ sK1_A @ sK2_SY126 ) )
    = $true ),
    inference(copy,[status(thm)],[138]) ).

thf(247,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)],[218]) ).

thf(248,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)],[240]) ).

thf(249,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)],[193]) ).

thf(250,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)],[220]) ).

thf(251,plain,
    ( ( ~ ( ~ ! [SX0: $i] :
                ( ( in @ ( sK11_B @ SX0 ) @ SX0 )
                | ( SX0 = empty_set ) )
          | ~ ! [SX0: $i] :
                ( ( SX0 != empty_set )
                | ! [SX1: $i] :
                    ~ ( in @ SX1 @ SX0 ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[214]) ).

thf(252,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)],[217]) ).

thf(253,plain,
    ( ( ~ ( ~ ! [SX0: $i,SX1: $i] :
                ( ( disjoint @ SX0 @ SX1 )
                | ( in @ ( sK13_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)],[200]) ).

thf(254,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)],[215]) ).

thf(255,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)],[183]) ).

thf(256,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)],[212]) ).

thf(257,plain,
    ( ( ~ ( ~ ! [SX0: $i,SX1: $i] :
                ( ~ ( ~ ( ( ( sK12_C @ SX1 @ SX0 )
                         != SX0 )
                        | ~ ( in @ ( sK12_C @ SX1 @ SX0 ) @ SX1 ) )
                    | ~ ( ( ( sK12_C @ SX1 @ SX0 )
                          = SX0 )
                        | ( in @ ( sK12_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)],[213]) ).

thf(258,plain,
    ( ( ~ ( ~ ! [SX0: $i,SX1: $i] :
                ( ( disjoint @ SX0 @ SX1 )
                | ~ ( ~ ( in @ ( sK14_C @ SX1 @ SX0 ) @ SX0 )
                    | ~ ( in @ ( sK14_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)],[195]) ).

thf(259,plain,
    ( ( ~ ( ~ ( subset @ ( singleton @ sK1_A ) @ sK2_SY126 )
          | ~ ~ ( in @ sK1_A @ sK2_SY126 ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[246]) ).

thf(260,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)],[205]) ).

thf(261,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)],[216]) ).

thf(262,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)],[221]) ).

thf(263,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)],[219]) ).

thf(264,plain,
    ! [SV1: $i] :
      ( ( ( ( singleton @ SV1 )
         != empty_set ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[182]) ).

thf(265,plain,
    ! [SV2: $i] :
      ( ( ! [SY127: $i] :
            ( ~ ( subset @ SV2 @ SY127 )
            | ( ( set_union2 @ SV2 @ SY127 )
              = SY127 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[184]) ).

thf(266,plain,
    ! [SV3: $i] :
      ( ( ! [SY128: $i] : ( subset @ ( set_intersection2 @ SV3 @ SY128 ) @ SV3 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[185]) ).

thf(267,plain,
    ! [SV4: $i] :
      ( ( ! [SY129: $i,SY130: $i] :
            ( ~ ( subset @ SV4 @ SY129 )
            | ~ ( subset @ SV4 @ SY130 )
            | ( subset @ SV4 @ ( set_intersection2 @ SY129 @ SY130 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[186]) ).

thf(268,plain,
    ! [SV5: $i] :
      ( ( ! [SY131: $i,SY132: $i] :
            ( ~ ( subset @ SV5 @ SY131 )
            | ~ ( subset @ SY131 @ SY132 )
            | ( subset @ SV5 @ SY132 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[187]) ).

thf(269,plain,
    ! [SV6: $i] :
      ( ( ! [SY133: $i] :
            ( ~ ( subset @ SV6 @ SY133 )
            | ! [SY134: $i] : ( subset @ ( set_intersection2 @ SV6 @ SY134 ) @ ( set_intersection2 @ SY133 @ SY134 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[188]) ).

thf(270,plain,
    ! [SV7: $i] :
      ( ( ! [SY135: $i] :
            ( ~ ( subset @ SV7 @ SY135 )
            | ( ( set_intersection2 @ SV7 @ SY135 )
              = SV7 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[189]) ).

thf(271,plain,
    ! [SV8: $i] :
      ( ( subset @ empty_set @ SV8 )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[190]) ).

thf(272,plain,
    ! [SV9: $i] :
      ( ( ! [SY136: $i] :
            ( ~ ( subset @ SV9 @ SY136 )
            | ! [SY137: $i] : ( subset @ ( set_difference @ SV9 @ SY137 ) @ ( set_difference @ SY136 @ SY137 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[191]) ).

thf(273,plain,
    ! [SV10: $i] :
      ( ( ! [SY138: $i] : ( subset @ ( set_difference @ SV10 @ SY138 ) @ SV10 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[192]) ).

thf(274,plain,
    ! [SV11: $i] :
      ( ( ! [SY139: $i] :
            ( ( set_union2 @ SV11 @ ( set_difference @ SY139 @ SV11 ) )
            = ( set_union2 @ SV11 @ SY139 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[194]) ).

thf(275,plain,
    ! [SV12: $i] :
      ( ( ~ ( subset @ SV12 @ empty_set )
        | ( SV12 = empty_set ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[196]) ).

thf(276,plain,
    ! [SV13: $i] :
      ( ( ! [SY140: $i] :
            ( ( set_difference @ ( set_union2 @ SV13 @ SY140 ) @ SY140 )
            = ( set_difference @ SV13 @ SY140 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[197]) ).

thf(277,plain,
    ! [SV14: $i] :
      ( ( ! [SY141: $i] :
            ( ~ ( subset @ SV14 @ SY141 )
            | ( SY141
              = ( set_union2 @ SV14 @ ( set_difference @ SY141 @ SV14 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[198]) ).

thf(278,plain,
    ! [SV15: $i] :
      ( ( ! [SY142: $i] :
            ( ( set_difference @ SV15 @ ( set_difference @ SV15 @ SY142 ) )
            = ( set_intersection2 @ SV15 @ SY142 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[199]) ).

thf(279,plain,
    ! [SV16: $i] :
      ( ( ! [SY143: $i] :
            ( ~ ( proper_subset @ SY143 @ SV16 )
            | ~ ( subset @ SV16 @ SY143 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[201]) ).

thf(280,plain,
    ! [SV17: $i] :
      ( ( ! [SY144: $i,SY145: $i] :
            ( ~ ( disjoint @ SY144 @ SY145 )
            | ~ ( subset @ SV17 @ SY144 )
            | ( disjoint @ SV17 @ SY145 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[202]) ).

thf(281,plain,
    ! [SV18: $i] :
      ( ( ( unordered_pair @ SV18 @ SV18 )
        = ( singleton @ SV18 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[203]) ).

thf(282,plain,
    ! [SV19: $i] :
      ( ( ! [SY146: $i] : ( subset @ SV19 @ ( set_union2 @ SV19 @ SY146 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[204]) ).

thf(283,plain,
    ! [SV20: $i] :
      ( ( ! [SY147: $i,SY148: $i] :
            ( ~ ( subset @ SV20 @ SY147 )
            | ~ ( subset @ SY148 @ SY147 )
            | ( subset @ ( set_union2 @ SV20 @ SY148 ) @ SY147 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[206]) ).

thf(284,plain,
    ! [SV21: $i] :
      ( ( ! [SY149: $i] :
            ( ~ ( in @ SV21 @ SY149 )
            | ~ ( in @ SY149 @ SV21 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[207]) ).

thf(285,plain,
    ! [SV22: $i] :
      ( ( ! [SY150: $i] :
            ( ~ ( proper_subset @ SV22 @ SY150 )
            | ~ ( proper_subset @ SY150 @ SV22 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[208]) ).

thf(286,plain,
    ! [SV23: $i] :
      ( ( ! [SY151: $i] :
            ( ( unordered_pair @ SV23 @ SY151 )
            = ( unordered_pair @ SY151 @ SV23 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[209]) ).

thf(287,plain,
    ! [SV24: $i] :
      ( ( ! [SY152: $i] :
            ( ( set_union2 @ SV24 @ SY152 )
            = ( set_union2 @ SY152 @ SV24 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[210]) ).

thf(288,plain,
    ! [SV25: $i] :
      ( ( ! [SY153: $i] :
            ( ( set_intersection2 @ SV25 @ SY153 )
            = ( set_intersection2 @ SY153 @ SV25 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[211]) ).

thf(289,plain,
    ! [SV26: $i] :
      ( ( ( empty @ SV26 )
        | ! [SY154: $i] :
            ~ ( empty @ ( set_union2 @ SV26 @ SY154 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[229]) ).

thf(290,plain,
    ! [SV27: $i] :
      ( ( ( empty @ SV27 )
        | ! [SY155: $i] :
            ~ ( empty @ ( set_union2 @ SY155 @ SV27 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[230]) ).

thf(291,plain,
    ! [SV28: $i] :
      ( ( ( set_union2 @ SV28 @ SV28 )
        = SV28 )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[231]) ).

thf(292,plain,
    ! [SV29: $i] :
      ( ( ( set_intersection2 @ SV29 @ SV29 )
        = SV29 )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[232]) ).

thf(293,plain,
    ! [SV30: $i] :
      ( ( ~ ( proper_subset @ SV30 @ SV30 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[233]) ).

thf(294,plain,
    ( ( empty @ sK4_A )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[235]) ).

thf(295,plain,
    ! [SV31: $i] :
      ( ( subset @ SV31 @ SV31 )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[236]) ).

thf(296,plain,
    ! [SV32: $i] :
      ( ( ! [SY156: $i] :
            ( ~ ( disjoint @ SV32 @ SY156 )
            | ( disjoint @ SY156 @ SV32 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[237]) ).

thf(297,plain,
    ! [SV33: $i] :
      ( ( ( set_union2 @ SV33 @ empty_set )
        = SV33 )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[238]) ).

thf(298,plain,
    ! [SV34: $i] :
      ( ( ( set_intersection2 @ SV34 @ empty_set )
        = empty_set )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[239]) ).

thf(299,plain,
    ! [SV35: $i] :
      ( ( ( set_difference @ SV35 @ empty_set )
        = SV35 )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[241]) ).

thf(300,plain,
    ! [SV36: $i] :
      ( ( ( set_difference @ empty_set @ SV36 )
        = empty_set )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[242]) ).

thf(301,plain,
    ! [SV37: $i] :
      ( ( ~ ( empty @ SV37 )
        | ( SV37 = empty_set ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[243]) ).

thf(302,plain,
    ! [SV38: $i] :
      ( ( ! [SY157: $i] :
            ( ~ ( empty @ SY157 )
            | ~ ( in @ SV38 @ SY157 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[244]) ).

thf(303,plain,
    ! [SV39: $i] :
      ( ( ! [SY158: $i] :
            ( ( SV39 = SY158 )
            | ~ ( empty @ SV39 )
            | ~ ( empty @ SY158 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[245]) ).

thf(304,plain,
    ! [SV40: $i] :
      ( ( ~ ( ~ ! [SY159: $i,SY160: $i] :
                  ( ~ ( ~ ( ~ ( in @ ( sK7_D @ SY160 @ SY159 @ SV40 ) @ SV40 )
                          | ~ ( in @ ( sK7_D @ SY160 @ SY159 @ SV40 ) @ SY159 )
                          | ~ ( in @ ( sK7_D @ SY160 @ SY159 @ SV40 ) @ SY160 ) )
                      | ~ ~ ( ~ ( ( in @ ( sK7_D @ SY160 @ SY159 @ SV40 ) @ SV40 )
                                | ( in @ ( sK7_D @ SY160 @ SY159 @ SV40 ) @ SY160 ) )
                            | ~ ( ( in @ ( sK7_D @ SY160 @ SY159 @ SV40 ) @ SY159 )
                                | ( in @ ( sK7_D @ SY160 @ SY159 @ SV40 ) @ SY160 ) ) ) )
                  | ( SY160
                    = ( set_intersection2 @ SV40 @ SY159 ) ) )
            | ~ ! [SY161: $i,SY162: $i] :
                  ( ( SY162
                   != ( set_intersection2 @ SV40 @ SY161 ) )
                  | ~ ( ~ ! [SY163: $i] :
                            ( ~ ( in @ SY163 @ SV40 )
                            | ~ ( in @ SY163 @ SY161 )
                            | ( in @ SY163 @ SY162 ) )
                      | ~ ~ ( ~ ! [SY164: $i] :
                                  ( ~ ( in @ SY164 @ SY162 )
                                  | ( in @ SY164 @ SV40 ) )
                            | ~ ! [SX3: $i] :
                                  ( ~ ( in @ SX3 @ SY162 )
                                  | ( in @ SX3 @ SY161 ) ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[247]) ).

thf(305,plain,
    ! [SV41: $i] :
      ( ( ! [SY166: $i] :
            ( ~ ( ~ ( ~ ( in @ ( sK3_C @ SY166 @ SV41 ) @ SV41 )
                    | ~ ( in @ ( sK3_C @ SY166 @ SV41 ) @ SY166 ) )
                | ~ ( ( in @ ( sK3_C @ SY166 @ SV41 ) @ SV41 )
                    | ( in @ ( sK3_C @ SY166 @ SV41 ) @ SY166 ) ) )
            | ( SV41 = SY166 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[248]) ).

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 ) ) )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[249]) ).

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 ) ) )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[250]) ).

thf(308,plain,
    ( ( ~ ! [SX0: $i] :
            ( ( in @ ( sK11_B @ SX0 ) @ SX0 )
            | ( SX0 = empty_set ) )
      | ~ ! [SX0: $i] :
            ( ( SX0 != empty_set )
            | ! [SX1: $i] :
                ~ ( in @ SX1 @ SX0 ) ) )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[251]) ).

thf(309,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)],[252]) ).

thf(310,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( disjoint @ SX0 @ SX1 )
            | ( in @ ( sK13_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)],[253]) ).

thf(311,plain,
    ! [SV42: $i] :
      ( ( ~ ( ~ ! [SY167: $i,SY168: $i] :
                  ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK10_D @ SY168 @ SY167 @ SV42 ) @ SY168 )
                                | ( ( sK10_D @ SY168 @ SY167 @ SV42 )
                                 != SV42 ) )
                            | ~ ( ~ ( in @ ( sK10_D @ SY168 @ SY167 @ SV42 ) @ SY168 )
                                | ( ( sK10_D @ SY168 @ SY167 @ SV42 )
                                 != SY167 ) ) )
                      | ~ ( ( in @ ( sK10_D @ SY168 @ SY167 @ SV42 ) @ SY168 )
                          | ( ( sK10_D @ SY168 @ SY167 @ SV42 )
                            = SV42 )
                          | ( ( sK10_D @ SY168 @ SY167 @ SV42 )
                            = SY167 ) ) )
                  | ( SY168
                    = ( unordered_pair @ SV42 @ SY167 ) ) )
            | ~ ! [SY169: $i,SY170: $i] :
                  ( ( SY170
                   != ( unordered_pair @ SV42 @ SY169 ) )
                  | ~ ( ~ ! [SY171: $i] :
                            ( ~ ( in @ SY171 @ SY170 )
                            | ( SY171 = SV42 )
                            | ( SY171 = SY169 ) )
                      | ~ ~ ( ~ ! [SY172: $i] :
                                  ( ( SY172 != SV42 )
                                  | ( in @ SY172 @ SY170 ) )
                            | ~ ! [SX3: $i] :
                                  ( ( SX3 != SY169 )
                                  | ( in @ SX3 @ SY170 ) ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[254]) ).

thf(312,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)],[255]) ).

thf(313,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)],[256]) ).

thf(314,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( ~ ( ( ( sK12_C @ SX1 @ SX0 )
                     != SX0 )
                    | ~ ( in @ ( sK12_C @ SX1 @ SX0 ) @ SX1 ) )
                | ~ ( ( ( sK12_C @ SX1 @ SX0 )
                      = SX0 )
                    | ( in @ ( sK12_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)],[257]) ).

thf(315,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( disjoint @ SX0 @ SX1 )
            | ~ ( ~ ( in @ ( sK14_C @ SX1 @ SX0 ) @ SX0 )
                | ~ ( in @ ( sK14_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)],[258]) ).

thf(316,plain,
    ( ( ~ ( subset @ ( singleton @ sK1_A ) @ sK2_SY126 )
      | ~ ~ ( in @ sK1_A @ sK2_SY126 ) )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[259]) ).

thf(317,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)],[260]) ).

thf(318,plain,
    ! [SV43: $i] :
      ( ( ~ ( ~ ! [SY174: $i,SY175: $i] :
                  ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK9_D @ SY175 @ SY174 @ SV43 ) @ SY175 )
                                | ~ ( in @ ( sK9_D @ SY175 @ SY174 @ SV43 ) @ SV43 ) )
                            | ~ ( ~ ( in @ ( sK9_D @ SY175 @ SY174 @ SV43 ) @ SY175 )
                                | ~ ( in @ ( sK9_D @ SY175 @ SY174 @ SV43 ) @ SY174 ) ) )
                      | ~ ( ( in @ ( sK9_D @ SY175 @ SY174 @ SV43 ) @ SY175 )
                          | ( in @ ( sK9_D @ SY175 @ SY174 @ SV43 ) @ SV43 )
                          | ( in @ ( sK9_D @ SY175 @ SY174 @ SV43 ) @ SY174 ) ) )
                  | ( SY175
                    = ( set_union2 @ SV43 @ SY174 ) ) )
            | ~ ! [SY176: $i,SY177: $i] :
                  ( ( SY177
                   != ( set_union2 @ SV43 @ SY176 ) )
                  | ~ ( ~ ! [SY178: $i] :
                            ( ~ ( in @ SY178 @ SY177 )
                            | ( in @ SY178 @ SV43 )
                            | ( in @ SY178 @ SY176 ) )
                      | ~ ~ ( ~ ! [SY179: $i] :
                                  ( ~ ( in @ SY179 @ SV43 )
                                  | ( in @ SY179 @ SY177 ) )
                            | ~ ! [SX3: $i] :
                                  ( ~ ( in @ SX3 @ SY176 )
                                  | ( in @ SX3 @ SY177 ) ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[261]) ).

thf(319,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)],[262]) ).

thf(320,plain,
    ! [SV44: $i] :
      ( ( ~ ( ~ ! [SY181: $i,SY182: $i] :
                  ( ~ ( ~ ( ~ ( in @ ( sK6_D @ SY182 @ SY181 @ SV44 ) @ SV44 )
                          | ( in @ ( sK6_D @ SY182 @ SY181 @ SV44 ) @ SY181 )
                          | ~ ( in @ ( sK6_D @ SY182 @ SY181 @ SV44 ) @ SY182 ) )
                      | ~ ~ ( ~ ( ( in @ ( sK6_D @ SY182 @ SY181 @ SV44 ) @ SV44 )
                                | ( in @ ( sK6_D @ SY182 @ SY181 @ SV44 ) @ SY182 ) )
                            | ~ ( ~ ( in @ ( sK6_D @ SY182 @ SY181 @ SV44 ) @ SY181 )
                                | ( in @ ( sK6_D @ SY182 @ SY181 @ SV44 ) @ SY182 ) ) ) )
                  | ( SY182
                    = ( set_difference @ SV44 @ SY181 ) ) )
            | ~ ! [SY183: $i,SY184: $i] :
                  ( ( SY184
                   != ( set_difference @ SV44 @ SY183 ) )
                  | ~ ( ~ ! [SY185: $i] :
                            ( ~ ( in @ SY185 @ SV44 )
                            | ( in @ SY185 @ SY183 )
                            | ( in @ SY185 @ SY184 ) )
                      | ~ ~ ( ~ ! [SY186: $i] :
                                  ( ~ ( in @ SY186 @ SY184 )
                                  | ( in @ SY186 @ SV44 ) )
                            | ~ ! [SX3: $i] :
                                  ( ~ ( in @ SX3 @ SY184 )
                                  | ~ ( in @ SX3 @ SY183 ) ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[263]) ).

thf(321,plain,
    ! [SV1: $i] :
      ( ( ( singleton @ SV1 )
        = empty_set )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[264]) ).

thf(322,plain,
    ! [SV45: $i,SV2: $i] :
      ( ( ~ ( subset @ SV2 @ SV45 )
        | ( ( set_union2 @ SV2 @ SV45 )
          = SV45 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[265]) ).

thf(323,plain,
    ! [SV46: $i,SV3: $i] :
      ( ( subset @ ( set_intersection2 @ SV3 @ SV46 ) @ SV3 )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[266]) ).

thf(324,plain,
    ! [SV47: $i,SV4: $i] :
      ( ( ! [SY188: $i] :
            ( ~ ( subset @ SV4 @ SV47 )
            | ~ ( subset @ SV4 @ SY188 )
            | ( subset @ SV4 @ ( set_intersection2 @ SV47 @ SY188 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[267]) ).

thf(325,plain,
    ! [SV48: $i,SV5: $i] :
      ( ( ! [SY189: $i] :
            ( ~ ( subset @ SV5 @ SV48 )
            | ~ ( subset @ SV48 @ SY189 )
            | ( subset @ SV5 @ SY189 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[268]) ).

thf(326,plain,
    ! [SV49: $i,SV6: $i] :
      ( ( ~ ( subset @ SV6 @ SV49 )
        | ! [SY190: $i] : ( subset @ ( set_intersection2 @ SV6 @ SY190 ) @ ( set_intersection2 @ SV49 @ SY190 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[269]) ).

thf(327,plain,
    ! [SV50: $i,SV7: $i] :
      ( ( ~ ( subset @ SV7 @ SV50 )
        | ( ( set_intersection2 @ SV7 @ SV50 )
          = SV7 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[270]) ).

thf(328,plain,
    ! [SV51: $i,SV9: $i] :
      ( ( ~ ( subset @ SV9 @ SV51 )
        | ! [SY191: $i] : ( subset @ ( set_difference @ SV9 @ SY191 ) @ ( set_difference @ SV51 @ SY191 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[272]) ).

thf(329,plain,
    ! [SV52: $i,SV10: $i] :
      ( ( subset @ ( set_difference @ SV10 @ SV52 ) @ SV10 )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[273]) ).

thf(330,plain,
    ! [SV53: $i,SV11: $i] :
      ( ( ( set_union2 @ SV11 @ ( set_difference @ SV53 @ SV11 ) )
        = ( set_union2 @ SV11 @ SV53 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[274]) ).

thf(331,plain,
    ! [SV12: $i] :
      ( ( ( ~ ( subset @ SV12 @ empty_set ) )
        = $true )
      | ( ( SV12 = empty_set )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[275]) ).

thf(332,plain,
    ! [SV54: $i,SV13: $i] :
      ( ( ( set_difference @ ( set_union2 @ SV13 @ SV54 ) @ SV54 )
        = ( set_difference @ SV13 @ SV54 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[276]) ).

thf(333,plain,
    ! [SV55: $i,SV14: $i] :
      ( ( ~ ( subset @ SV14 @ SV55 )
        | ( SV55
          = ( set_union2 @ SV14 @ ( set_difference @ SV55 @ SV14 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[277]) ).

thf(334,plain,
    ! [SV56: $i,SV15: $i] :
      ( ( ( set_difference @ SV15 @ ( set_difference @ SV15 @ SV56 ) )
        = ( set_intersection2 @ SV15 @ SV56 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[278]) ).

thf(335,plain,
    ! [SV16: $i,SV57: $i] :
      ( ( ~ ( proper_subset @ SV57 @ SV16 )
        | ~ ( subset @ SV16 @ SV57 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[279]) ).

thf(336,plain,
    ! [SV17: $i,SV58: $i] :
      ( ( ! [SY192: $i] :
            ( ~ ( disjoint @ SV58 @ SY192 )
            | ~ ( subset @ SV17 @ SV58 )
            | ( disjoint @ SV17 @ SY192 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[280]) ).

thf(337,plain,
    ! [SV59: $i,SV19: $i] :
      ( ( subset @ SV19 @ ( set_union2 @ SV19 @ SV59 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[282]) ).

thf(338,plain,
    ! [SV60: $i,SV20: $i] :
      ( ( ! [SY193: $i] :
            ( ~ ( subset @ SV20 @ SV60 )
            | ~ ( subset @ SY193 @ SV60 )
            | ( subset @ ( set_union2 @ SV20 @ SY193 ) @ SV60 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[283]) ).

thf(339,plain,
    ! [SV61: $i,SV21: $i] :
      ( ( ~ ( in @ SV21 @ SV61 )
        | ~ ( in @ SV61 @ SV21 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[284]) ).

thf(340,plain,
    ! [SV62: $i,SV22: $i] :
      ( ( ~ ( proper_subset @ SV22 @ SV62 )
        | ~ ( proper_subset @ SV62 @ SV22 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[285]) ).

thf(341,plain,
    ! [SV63: $i,SV23: $i] :
      ( ( ( unordered_pair @ SV23 @ SV63 )
        = ( unordered_pair @ SV63 @ SV23 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[286]) ).

thf(342,plain,
    ! [SV64: $i,SV24: $i] :
      ( ( ( set_union2 @ SV24 @ SV64 )
        = ( set_union2 @ SV64 @ SV24 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[287]) ).

thf(343,plain,
    ! [SV65: $i,SV25: $i] :
      ( ( ( set_intersection2 @ SV25 @ SV65 )
        = ( set_intersection2 @ SV65 @ SV25 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[288]) ).

thf(344,plain,
    ! [SV26: $i] :
      ( ( ( empty @ SV26 )
        = $true )
      | ( ( ! [SY154: $i] :
              ~ ( empty @ ( set_union2 @ SV26 @ SY154 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[289]) ).

thf(345,plain,
    ! [SV27: $i] :
      ( ( ( empty @ SV27 )
        = $true )
      | ( ( ! [SY155: $i] :
              ~ ( empty @ ( set_union2 @ SY155 @ SV27 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[290]) ).

thf(346,plain,
    ! [SV30: $i] :
      ( ( proper_subset @ SV30 @ SV30 )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[293]) ).

thf(347,plain,
    ! [SV66: $i,SV32: $i] :
      ( ( ~ ( disjoint @ SV32 @ SV66 )
        | ( disjoint @ SV66 @ SV32 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[296]) ).

thf(348,plain,
    ! [SV37: $i] :
      ( ( ( ~ ( empty @ SV37 ) )
        = $true )
      | ( ( SV37 = empty_set )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[301]) ).

thf(349,plain,
    ! [SV38: $i,SV67: $i] :
      ( ( ~ ( empty @ SV67 )
        | ~ ( in @ SV38 @ SV67 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[302]) ).

thf(350,plain,
    ! [SV68: $i,SV39: $i] :
      ( ( ( SV39 = SV68 )
        | ~ ( empty @ SV39 )
        | ~ ( empty @ SV68 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[303]) ).

thf(351,plain,
    ! [SV40: $i] :
      ( ( ~ ! [SY159: $i,SY160: $i] :
              ( ~ ( ~ ( ~ ( in @ ( sK7_D @ SY160 @ SY159 @ SV40 ) @ SV40 )
                      | ~ ( in @ ( sK7_D @ SY160 @ SY159 @ SV40 ) @ SY159 )
                      | ~ ( in @ ( sK7_D @ SY160 @ SY159 @ SV40 ) @ SY160 ) )
                  | ~ ~ ( ~ ( ( in @ ( sK7_D @ SY160 @ SY159 @ SV40 ) @ SV40 )
                            | ( in @ ( sK7_D @ SY160 @ SY159 @ SV40 ) @ SY160 ) )
                        | ~ ( ( in @ ( sK7_D @ SY160 @ SY159 @ SV40 ) @ SY159 )
                            | ( in @ ( sK7_D @ SY160 @ SY159 @ SV40 ) @ SY160 ) ) ) )
              | ( SY160
                = ( set_intersection2 @ SV40 @ SY159 ) ) )
        | ~ ! [SY161: $i,SY162: $i] :
              ( ( SY162
               != ( set_intersection2 @ SV40 @ SY161 ) )
              | ~ ( ~ ! [SY163: $i] :
                        ( ~ ( in @ SY163 @ SV40 )
                        | ~ ( in @ SY163 @ SY161 )
                        | ( in @ SY163 @ SY162 ) )
                  | ~ ~ ( ~ ! [SY164: $i] :
                              ( ~ ( in @ SY164 @ SY162 )
                              | ( in @ SY164 @ SV40 ) )
                        | ~ ! [SX3: $i] :
                              ( ~ ( in @ SX3 @ SY162 )
                              | ( in @ SX3 @ SY161 ) ) ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[304]) ).

thf(352,plain,
    ! [SV41: $i,SV69: $i] :
      ( ( ~ ( ~ ( ~ ( in @ ( sK3_C @ SV69 @ SV41 ) @ SV41 )
                | ~ ( in @ ( sK3_C @ SV69 @ SV41 ) @ SV69 ) )
            | ~ ( ( in @ ( sK3_C @ SV69 @ SV41 ) @ SV41 )
                | ( in @ ( sK3_C @ SV69 @ SV41 ) @ SV69 ) ) )
        | ( SV41 = SV69 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[305]) ).

thf(353,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( ( set_difference @ SX0 @ SX1 )
             != empty_set )
            | ( subset @ SX0 @ SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[306]) ).

thf(354,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( subset @ SX0 @ SX1 )
            | ( ( set_difference @ SX0 @ SX1 )
              = empty_set ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[306]) ).

thf(355,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( ( set_intersection2 @ SX0 @ SX1 )
             != empty_set )
            | ( disjoint @ SX0 @ SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[307]) ).

thf(356,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( disjoint @ SX0 @ SX1 )
            | ( ( set_intersection2 @ SX0 @ SX1 )
              = empty_set ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[307]) ).

thf(357,plain,
    ( ( ~ ! [SX0: $i] :
            ( ( in @ ( sK11_B @ SX0 ) @ SX0 )
            | ( SX0 = empty_set ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[308]) ).

thf(358,plain,
    ( ( ~ ! [SX0: $i] :
            ( ( SX0 != empty_set )
            | ! [SX1: $i] :
                ~ ( in @ SX1 @ SX0 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[308]) ).

thf(359,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)],[309]) ).

thf(360,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( subset @ SX0 @ SX1 )
            | ! [SX2: $i] :
                ( ~ ( in @ SX2 @ SX0 )
                | ( in @ SX2 @ SX1 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[309]) ).

thf(361,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( disjoint @ SX0 @ SX1 )
            | ( in @ ( sK13_C @ SX1 @ SX0 ) @ ( set_intersection2 @ SX0 @ SX1 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[310]) ).

thf(362,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ! [SX2: $i] :
                ~ ( in @ SX2 @ ( set_intersection2 @ SX0 @ SX1 ) )
            | ~ ( disjoint @ SX0 @ SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[310]) ).

thf(363,plain,
    ! [SV42: $i] :
      ( ( ~ ! [SY167: $i,SY168: $i] :
              ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK10_D @ SY168 @ SY167 @ SV42 ) @ SY168 )
                            | ( ( sK10_D @ SY168 @ SY167 @ SV42 )
                             != SV42 ) )
                        | ~ ( ~ ( in @ ( sK10_D @ SY168 @ SY167 @ SV42 ) @ SY168 )
                            | ( ( sK10_D @ SY168 @ SY167 @ SV42 )
                             != SY167 ) ) )
                  | ~ ( ( in @ ( sK10_D @ SY168 @ SY167 @ SV42 ) @ SY168 )
                      | ( ( sK10_D @ SY168 @ SY167 @ SV42 )
                        = SV42 )
                      | ( ( sK10_D @ SY168 @ SY167 @ SV42 )
                        = SY167 ) ) )
              | ( SY168
                = ( unordered_pair @ SV42 @ SY167 ) ) )
        | ~ ! [SY169: $i,SY170: $i] :
              ( ( SY170
               != ( unordered_pair @ SV42 @ SY169 ) )
              | ~ ( ~ ! [SY171: $i] :
                        ( ~ ( in @ SY171 @ SY170 )
                        | ( SY171 = SV42 )
                        | ( SY171 = SY169 ) )
                  | ~ ~ ( ~ ! [SY172: $i] :
                              ( ( SY172 != SV42 )
                              | ( in @ SY172 @ SY170 ) )
                        | ~ ! [SX3: $i] :
                              ( ( SX3 != SY169 )
                              | ( in @ SX3 @ SY170 ) ) ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[311]) ).

thf(364,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( ( set_difference @ SX0 @ SX1 )
             != empty_set )
            | ( subset @ SX0 @ SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[312]) ).

thf(365,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( subset @ SX0 @ SX1 )
            | ( ( set_difference @ SX0 @ SX1 )
              = empty_set ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[312]) ).

thf(366,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( subset @ SX0 @ SX1 )
            | ~ ( subset @ SX1 @ SX0 )
            | ( SX0 = SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[313]) ).

thf(367,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)],[313]) ).

thf(368,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( ~ ( ( ( sK12_C @ SX1 @ SX0 )
                     != SX0 )
                    | ~ ( in @ ( sK12_C @ SX1 @ SX0 ) @ SX1 ) )
                | ~ ( ( ( sK12_C @ SX1 @ SX0 )
                      = SX0 )
                    | ( in @ ( sK12_C @ SX1 @ SX0 ) @ SX1 ) ) )
            | ( SX1
              = ( singleton @ SX0 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[314]) ).

thf(369,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)],[314]) ).

thf(370,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( disjoint @ SX0 @ SX1 )
            | ~ ( ~ ( in @ ( sK14_C @ SX1 @ SX0 ) @ SX0 )
                | ~ ( in @ ( sK14_C @ SX1 @ SX0 ) @ SX1 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[315]) ).

thf(371,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ! [SX2: $i] :
                ( ~ ( in @ SX2 @ SX0 )
                | ~ ( in @ SX2 @ SX1 ) )
            | ~ ( disjoint @ SX0 @ SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[315]) ).

thf(372,plain,
    ( ( ~ ( subset @ ( singleton @ sK1_A ) @ sK2_SY126 ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[316]) ).

thf(373,plain,
    ( ( ~ ~ ( in @ sK1_A @ sK2_SY126 ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[316]) ).

thf(374,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( ( set_difference @ SX0 @ SX1 )
             != SX0 )
            | ( disjoint @ SX0 @ SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[317]) ).

thf(375,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( disjoint @ SX0 @ SX1 )
            | ( ( set_difference @ SX0 @ SX1 )
              = SX0 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[317]) ).

thf(376,plain,
    ! [SV43: $i] :
      ( ( ~ ! [SY174: $i,SY175: $i] :
              ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK9_D @ SY175 @ SY174 @ SV43 ) @ SY175 )
                            | ~ ( in @ ( sK9_D @ SY175 @ SY174 @ SV43 ) @ SV43 ) )
                        | ~ ( ~ ( in @ ( sK9_D @ SY175 @ SY174 @ SV43 ) @ SY175 )
                            | ~ ( in @ ( sK9_D @ SY175 @ SY174 @ SV43 ) @ SY174 ) ) )
                  | ~ ( ( in @ ( sK9_D @ SY175 @ SY174 @ SV43 ) @ SY175 )
                      | ( in @ ( sK9_D @ SY175 @ SY174 @ SV43 ) @ SV43 )
                      | ( in @ ( sK9_D @ SY175 @ SY174 @ SV43 ) @ SY174 ) ) )
              | ( SY175
                = ( set_union2 @ SV43 @ SY174 ) ) )
        | ~ ! [SY176: $i,SY177: $i] :
              ( ( SY177
               != ( set_union2 @ SV43 @ SY176 ) )
              | ~ ( ~ ! [SY178: $i] :
                        ( ~ ( in @ SY178 @ SY177 )
                        | ( in @ SY178 @ SV43 )
                        | ( in @ SY178 @ SY176 ) )
                  | ~ ~ ( ~ ! [SY179: $i] :
                              ( ~ ( in @ SY179 @ SV43 )
                              | ( in @ SY179 @ SY177 ) )
                        | ~ ! [SX3: $i] :
                              ( ~ ( in @ SX3 @ SY176 )
                              | ( in @ SX3 @ SY177 ) ) ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[318]) ).

thf(377,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( SX0 = SX1 )
            | ~ ( subset @ SX0 @ SX1 )
            | ( proper_subset @ SX0 @ SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[319]) ).

thf(378,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)],[319]) ).

thf(379,plain,
    ! [SV44: $i] :
      ( ( ~ ! [SY181: $i,SY182: $i] :
              ( ~ ( ~ ( ~ ( in @ ( sK6_D @ SY182 @ SY181 @ SV44 ) @ SV44 )
                      | ( in @ ( sK6_D @ SY182 @ SY181 @ SV44 ) @ SY181 )
                      | ~ ( in @ ( sK6_D @ SY182 @ SY181 @ SV44 ) @ SY182 ) )
                  | ~ ~ ( ~ ( ( in @ ( sK6_D @ SY182 @ SY181 @ SV44 ) @ SV44 )
                            | ( in @ ( sK6_D @ SY182 @ SY181 @ SV44 ) @ SY182 ) )
                        | ~ ( ~ ( in @ ( sK6_D @ SY182 @ SY181 @ SV44 ) @ SY181 )
                            | ( in @ ( sK6_D @ SY182 @ SY181 @ SV44 ) @ SY182 ) ) ) )
              | ( SY182
                = ( set_difference @ SV44 @ SY181 ) ) )
        | ~ ! [SY183: $i,SY184: $i] :
              ( ( SY184
               != ( set_difference @ SV44 @ SY183 ) )
              | ~ ( ~ ! [SY185: $i] :
                        ( ~ ( in @ SY185 @ SV44 )
                        | ( in @ SY185 @ SY183 )
                        | ( in @ SY185 @ SY184 ) )
                  | ~ ~ ( ~ ! [SY186: $i] :
                              ( ~ ( in @ SY186 @ SY184 )
                              | ( in @ SY186 @ SV44 ) )
                        | ~ ! [SX3: $i] :
                              ( ~ ( in @ SX3 @ SY184 )
                              | ~ ( in @ SX3 @ SY183 ) ) ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[320]) ).

thf(380,plain,
    ! [SV45: $i,SV2: $i] :
      ( ( ( ~ ( subset @ SV2 @ SV45 ) )
        = $true )
      | ( ( ( set_union2 @ SV2 @ SV45 )
          = SV45 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[322]) ).

thf(381,plain,
    ! [SV70: $i,SV47: $i,SV4: $i] :
      ( ( ~ ( subset @ SV4 @ SV47 )
        | ~ ( subset @ SV4 @ SV70 )
        | ( subset @ SV4 @ ( set_intersection2 @ SV47 @ SV70 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[324]) ).

thf(382,plain,
    ! [SV71: $i,SV48: $i,SV5: $i] :
      ( ( ~ ( subset @ SV5 @ SV48 )
        | ~ ( subset @ SV48 @ SV71 )
        | ( subset @ SV5 @ SV71 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[325]) ).

thf(383,plain,
    ! [SV49: $i,SV6: $i] :
      ( ( ( ~ ( subset @ SV6 @ SV49 ) )
        = $true )
      | ( ( ! [SY190: $i] : ( subset @ ( set_intersection2 @ SV6 @ SY190 ) @ ( set_intersection2 @ SV49 @ SY190 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[326]) ).

thf(384,plain,
    ! [SV50: $i,SV7: $i] :
      ( ( ( ~ ( subset @ SV7 @ SV50 ) )
        = $true )
      | ( ( ( set_intersection2 @ SV7 @ SV50 )
          = SV7 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[327]) ).

thf(385,plain,
    ! [SV51: $i,SV9: $i] :
      ( ( ( ~ ( subset @ SV9 @ SV51 ) )
        = $true )
      | ( ( ! [SY191: $i] : ( subset @ ( set_difference @ SV9 @ SY191 ) @ ( set_difference @ SV51 @ SY191 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[328]) ).

thf(386,plain,
    ! [SV12: $i] :
      ( ( ( subset @ SV12 @ empty_set )
        = $false )
      | ( ( SV12 = empty_set )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[331]) ).

thf(387,plain,
    ! [SV55: $i,SV14: $i] :
      ( ( ( ~ ( subset @ SV14 @ SV55 ) )
        = $true )
      | ( ( SV55
          = ( set_union2 @ SV14 @ ( set_difference @ SV55 @ SV14 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[333]) ).

thf(388,plain,
    ! [SV16: $i,SV57: $i] :
      ( ( ( ~ ( proper_subset @ SV57 @ SV16 ) )
        = $true )
      | ( ( ~ ( subset @ SV16 @ SV57 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[335]) ).

thf(389,plain,
    ! [SV17: $i,SV72: $i,SV58: $i] :
      ( ( ~ ( disjoint @ SV58 @ SV72 )
        | ~ ( subset @ SV17 @ SV58 )
        | ( disjoint @ SV17 @ SV72 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[336]) ).

thf(390,plain,
    ! [SV73: $i,SV60: $i,SV20: $i] :
      ( ( ~ ( subset @ SV20 @ SV60 )
        | ~ ( subset @ SV73 @ SV60 )
        | ( subset @ ( set_union2 @ SV20 @ SV73 ) @ SV60 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[338]) ).

thf(391,plain,
    ! [SV61: $i,SV21: $i] :
      ( ( ( ~ ( in @ SV21 @ SV61 ) )
        = $true )
      | ( ( ~ ( in @ SV61 @ SV21 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[339]) ).

thf(392,plain,
    ! [SV62: $i,SV22: $i] :
      ( ( ( ~ ( proper_subset @ SV22 @ SV62 ) )
        = $true )
      | ( ( ~ ( proper_subset @ SV62 @ SV22 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[340]) ).

thf(393,plain,
    ! [SV74: $i,SV26: $i] :
      ( ( ( ~ ( empty @ ( set_union2 @ SV26 @ SV74 ) ) )
        = $true )
      | ( ( empty @ SV26 )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[344]) ).

thf(394,plain,
    ! [SV27: $i,SV75: $i] :
      ( ( ( ~ ( empty @ ( set_union2 @ SV75 @ SV27 ) ) )
        = $true )
      | ( ( empty @ SV27 )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[345]) ).

thf(395,plain,
    ! [SV66: $i,SV32: $i] :
      ( ( ( ~ ( disjoint @ SV32 @ SV66 ) )
        = $true )
      | ( ( disjoint @ SV66 @ SV32 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[347]) ).

thf(396,plain,
    ! [SV37: $i] :
      ( ( ( empty @ SV37 )
        = $false )
      | ( ( SV37 = empty_set )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[348]) ).

thf(397,plain,
    ! [SV38: $i,SV67: $i] :
      ( ( ( ~ ( empty @ SV67 ) )
        = $true )
      | ( ( ~ ( in @ SV38 @ SV67 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[349]) ).

thf(398,plain,
    ! [SV68: $i,SV39: $i] :
      ( ( ( ( SV39 = SV68 )
          | ~ ( empty @ SV39 ) )
        = $true )
      | ( ( ~ ( empty @ SV68 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[350]) ).

thf(399,plain,
    ! [SV40: $i] :
      ( ( ~ ! [SY159: $i,SY160: $i] :
              ( ~ ( ~ ( ~ ( in @ ( sK7_D @ SY160 @ SY159 @ SV40 ) @ SV40 )
                      | ~ ( in @ ( sK7_D @ SY160 @ SY159 @ SV40 ) @ SY159 )
                      | ~ ( in @ ( sK7_D @ SY160 @ SY159 @ SV40 ) @ SY160 ) )
                  | ~ ~ ( ~ ( ( in @ ( sK7_D @ SY160 @ SY159 @ SV40 ) @ SV40 )
                            | ( in @ ( sK7_D @ SY160 @ SY159 @ SV40 ) @ SY160 ) )
                        | ~ ( ( in @ ( sK7_D @ SY160 @ SY159 @ SV40 ) @ SY159 )
                            | ( in @ ( sK7_D @ SY160 @ SY159 @ SV40 ) @ SY160 ) ) ) )
              | ( SY160
                = ( set_intersection2 @ SV40 @ SY159 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[351]) ).

thf(400,plain,
    ! [SV40: $i] :
      ( ( ~ ! [SY161: $i,SY162: $i] :
              ( ( SY162
               != ( set_intersection2 @ SV40 @ SY161 ) )
              | ~ ( ~ ! [SY163: $i] :
                        ( ~ ( in @ SY163 @ SV40 )
                        | ~ ( in @ SY163 @ SY161 )
                        | ( in @ SY163 @ SY162 ) )
                  | ~ ~ ( ~ ! [SY164: $i] :
                              ( ~ ( in @ SY164 @ SY162 )
                              | ( in @ SY164 @ SV40 ) )
                        | ~ ! [SX3: $i] :
                              ( ~ ( in @ SX3 @ SY162 )
                              | ( in @ SX3 @ SY161 ) ) ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[351]) ).

thf(401,plain,
    ! [SV41: $i,SV69: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ ( sK3_C @ SV69 @ SV41 ) @ SV41 )
                  | ~ ( in @ ( sK3_C @ SV69 @ SV41 ) @ SV69 ) )
              | ~ ( ( in @ ( sK3_C @ SV69 @ SV41 ) @ SV41 )
                  | ( in @ ( sK3_C @ SV69 @ SV41 ) @ SV69 ) ) ) )
        = $true )
      | ( ( SV41 = SV69 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[352]) ).

thf(402,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ( ( set_difference @ SX0 @ SX1 )
           != empty_set )
          | ( subset @ SX0 @ SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[353]) ).

thf(403,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( subset @ SX0 @ SX1 )
          | ( ( set_difference @ SX0 @ SX1 )
            = empty_set ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[354]) ).

thf(404,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ( ( set_intersection2 @ SX0 @ SX1 )
           != empty_set )
          | ( disjoint @ SX0 @ SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[355]) ).

thf(405,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( disjoint @ SX0 @ SX1 )
          | ( ( set_intersection2 @ SX0 @ SX1 )
            = empty_set ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[356]) ).

thf(406,plain,
    ( ( ! [SX0: $i] :
          ( ( in @ ( sK11_B @ SX0 ) @ SX0 )
          | ( SX0 = empty_set ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[357]) ).

thf(407,plain,
    ( ( ! [SX0: $i] :
          ( ( SX0 != empty_set )
          | ! [SX1: $i] :
              ~ ( in @ SX1 @ SX0 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[358]) ).

thf(408,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)],[359]) ).

thf(409,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( subset @ SX0 @ SX1 )
          | ! [SX2: $i] :
              ( ~ ( in @ SX2 @ SX0 )
              | ( in @ SX2 @ SX1 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[360]) ).

thf(410,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ( disjoint @ SX0 @ SX1 )
          | ( in @ ( sK13_C @ SX1 @ SX0 ) @ ( set_intersection2 @ SX0 @ SX1 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[361]) ).

thf(411,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ! [SX2: $i] :
              ~ ( in @ SX2 @ ( set_intersection2 @ SX0 @ SX1 ) )
          | ~ ( disjoint @ SX0 @ SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[362]) ).

thf(412,plain,
    ! [SV42: $i] :
      ( ( ~ ! [SY167: $i,SY168: $i] :
              ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK10_D @ SY168 @ SY167 @ SV42 ) @ SY168 )
                            | ( ( sK10_D @ SY168 @ SY167 @ SV42 )
                             != SV42 ) )
                        | ~ ( ~ ( in @ ( sK10_D @ SY168 @ SY167 @ SV42 ) @ SY168 )
                            | ( ( sK10_D @ SY168 @ SY167 @ SV42 )
                             != SY167 ) ) )
                  | ~ ( ( in @ ( sK10_D @ SY168 @ SY167 @ SV42 ) @ SY168 )
                      | ( ( sK10_D @ SY168 @ SY167 @ SV42 )
                        = SV42 )
                      | ( ( sK10_D @ SY168 @ SY167 @ SV42 )
                        = SY167 ) ) )
              | ( SY168
                = ( unordered_pair @ SV42 @ SY167 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[363]) ).

thf(413,plain,
    ! [SV42: $i] :
      ( ( ~ ! [SY169: $i,SY170: $i] :
              ( ( SY170
               != ( unordered_pair @ SV42 @ SY169 ) )
              | ~ ( ~ ! [SY171: $i] :
                        ( ~ ( in @ SY171 @ SY170 )
                        | ( SY171 = SV42 )
                        | ( SY171 = SY169 ) )
                  | ~ ~ ( ~ ! [SY172: $i] :
                              ( ( SY172 != SV42 )
                              | ( in @ SY172 @ SY170 ) )
                        | ~ ! [SX3: $i] :
                              ( ( SX3 != SY169 )
                              | ( in @ SX3 @ SY170 ) ) ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[363]) ).

thf(414,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ( ( set_difference @ SX0 @ SX1 )
           != empty_set )
          | ( subset @ SX0 @ SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[364]) ).

thf(415,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( subset @ SX0 @ SX1 )
          | ( ( set_difference @ SX0 @ SX1 )
            = empty_set ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[365]) ).

thf(416,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( subset @ SX0 @ SX1 )
          | ~ ( subset @ SX1 @ SX0 )
          | ( SX0 = SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[366]) ).

thf(417,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)],[367]) ).

thf(418,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( ~ ( ( ( sK12_C @ SX1 @ SX0 )
                   != SX0 )
                  | ~ ( in @ ( sK12_C @ SX1 @ SX0 ) @ SX1 ) )
              | ~ ( ( ( sK12_C @ SX1 @ SX0 )
                    = SX0 )
                  | ( in @ ( sK12_C @ SX1 @ SX0 ) @ SX1 ) ) )
          | ( SX1
            = ( singleton @ SX0 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[368]) ).

thf(419,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)],[369]) ).

thf(420,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ( disjoint @ SX0 @ SX1 )
          | ~ ( ~ ( in @ ( sK14_C @ SX1 @ SX0 ) @ SX0 )
              | ~ ( in @ ( sK14_C @ SX1 @ SX0 ) @ SX1 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[370]) ).

thf(421,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ! [SX2: $i] :
              ( ~ ( in @ SX2 @ SX0 )
              | ~ ( in @ SX2 @ SX1 ) )
          | ~ ( disjoint @ SX0 @ SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[371]) ).

thf(422,plain,
    ( ( subset @ ( singleton @ sK1_A ) @ sK2_SY126 )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[372]) ).

thf(423,plain,
    ( ( ~ ( in @ sK1_A @ sK2_SY126 ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[373]) ).

thf(424,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ( ( set_difference @ SX0 @ SX1 )
           != SX0 )
          | ( disjoint @ SX0 @ SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[374]) ).

thf(425,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( disjoint @ SX0 @ SX1 )
          | ( ( set_difference @ SX0 @ SX1 )
            = SX0 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[375]) ).

thf(426,plain,
    ! [SV43: $i] :
      ( ( ~ ! [SY174: $i,SY175: $i] :
              ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK9_D @ SY175 @ SY174 @ SV43 ) @ SY175 )
                            | ~ ( in @ ( sK9_D @ SY175 @ SY174 @ SV43 ) @ SV43 ) )
                        | ~ ( ~ ( in @ ( sK9_D @ SY175 @ SY174 @ SV43 ) @ SY175 )
                            | ~ ( in @ ( sK9_D @ SY175 @ SY174 @ SV43 ) @ SY174 ) ) )
                  | ~ ( ( in @ ( sK9_D @ SY175 @ SY174 @ SV43 ) @ SY175 )
                      | ( in @ ( sK9_D @ SY175 @ SY174 @ SV43 ) @ SV43 )
                      | ( in @ ( sK9_D @ SY175 @ SY174 @ SV43 ) @ SY174 ) ) )
              | ( SY175
                = ( set_union2 @ SV43 @ SY174 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[376]) ).

thf(427,plain,
    ! [SV43: $i] :
      ( ( ~ ! [SY176: $i,SY177: $i] :
              ( ( SY177
               != ( set_union2 @ SV43 @ SY176 ) )
              | ~ ( ~ ! [SY178: $i] :
                        ( ~ ( in @ SY178 @ SY177 )
                        | ( in @ SY178 @ SV43 )
                        | ( in @ SY178 @ SY176 ) )
                  | ~ ~ ( ~ ! [SY179: $i] :
                              ( ~ ( in @ SY179 @ SV43 )
                              | ( in @ SY179 @ SY177 ) )
                        | ~ ! [SX3: $i] :
                              ( ~ ( in @ SX3 @ SY176 )
                              | ( in @ SX3 @ SY177 ) ) ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[376]) ).

thf(428,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ( SX0 = SX1 )
          | ~ ( subset @ SX0 @ SX1 )
          | ( proper_subset @ SX0 @ SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[377]) ).

thf(429,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)],[378]) ).

thf(430,plain,
    ! [SV44: $i] :
      ( ( ~ ! [SY181: $i,SY182: $i] :
              ( ~ ( ~ ( ~ ( in @ ( sK6_D @ SY182 @ SY181 @ SV44 ) @ SV44 )
                      | ( in @ ( sK6_D @ SY182 @ SY181 @ SV44 ) @ SY181 )
                      | ~ ( in @ ( sK6_D @ SY182 @ SY181 @ SV44 ) @ SY182 ) )
                  | ~ ~ ( ~ ( ( in @ ( sK6_D @ SY182 @ SY181 @ SV44 ) @ SV44 )
                            | ( in @ ( sK6_D @ SY182 @ SY181 @ SV44 ) @ SY182 ) )
                        | ~ ( ~ ( in @ ( sK6_D @ SY182 @ SY181 @ SV44 ) @ SY181 )
                            | ( in @ ( sK6_D @ SY182 @ SY181 @ SV44 ) @ SY182 ) ) ) )
              | ( SY182
                = ( set_difference @ SV44 @ SY181 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[379]) ).

thf(431,plain,
    ! [SV44: $i] :
      ( ( ~ ! [SY183: $i,SY184: $i] :
              ( ( SY184
               != ( set_difference @ SV44 @ SY183 ) )
              | ~ ( ~ ! [SY185: $i] :
                        ( ~ ( in @ SY185 @ SV44 )
                        | ( in @ SY185 @ SY183 )
                        | ( in @ SY185 @ SY184 ) )
                  | ~ ~ ( ~ ! [SY186: $i] :
                              ( ~ ( in @ SY186 @ SY184 )
                              | ( in @ SY186 @ SV44 ) )
                        | ~ ! [SX3: $i] :
                              ( ~ ( in @ SX3 @ SY184 )
                              | ~ ( in @ SX3 @ SY183 ) ) ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[379]) ).

thf(432,plain,
    ! [SV45: $i,SV2: $i] :
      ( ( ( subset @ SV2 @ SV45 )
        = $false )
      | ( ( ( set_union2 @ SV2 @ SV45 )
          = SV45 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[380]) ).

thf(433,plain,
    ! [SV70: $i,SV47: $i,SV4: $i] :
      ( ( ( ~ ( subset @ SV4 @ SV47 )
          | ~ ( subset @ SV4 @ SV70 ) )
        = $true )
      | ( ( subset @ SV4 @ ( set_intersection2 @ SV47 @ SV70 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[381]) ).

thf(434,plain,
    ! [SV71: $i,SV48: $i,SV5: $i] :
      ( ( ( ~ ( subset @ SV5 @ SV48 )
          | ~ ( subset @ SV48 @ SV71 ) )
        = $true )
      | ( ( subset @ SV5 @ SV71 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[382]) ).

thf(435,plain,
    ! [SV49: $i,SV6: $i] :
      ( ( ( subset @ SV6 @ SV49 )
        = $false )
      | ( ( ! [SY190: $i] : ( subset @ ( set_intersection2 @ SV6 @ SY190 ) @ ( set_intersection2 @ SV49 @ SY190 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[383]) ).

thf(436,plain,
    ! [SV50: $i,SV7: $i] :
      ( ( ( subset @ SV7 @ SV50 )
        = $false )
      | ( ( ( set_intersection2 @ SV7 @ SV50 )
          = SV7 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[384]) ).

thf(437,plain,
    ! [SV51: $i,SV9: $i] :
      ( ( ( subset @ SV9 @ SV51 )
        = $false )
      | ( ( ! [SY191: $i] : ( subset @ ( set_difference @ SV9 @ SY191 ) @ ( set_difference @ SV51 @ SY191 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[385]) ).

thf(438,plain,
    ! [SV55: $i,SV14: $i] :
      ( ( ( subset @ SV14 @ SV55 )
        = $false )
      | ( ( SV55
          = ( set_union2 @ SV14 @ ( set_difference @ SV55 @ SV14 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[387]) ).

thf(439,plain,
    ! [SV16: $i,SV57: $i] :
      ( ( ( proper_subset @ SV57 @ SV16 )
        = $false )
      | ( ( ~ ( subset @ SV16 @ SV57 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[388]) ).

thf(440,plain,
    ! [SV17: $i,SV72: $i,SV58: $i] :
      ( ( ( ~ ( disjoint @ SV58 @ SV72 )
          | ~ ( subset @ SV17 @ SV58 ) )
        = $true )
      | ( ( disjoint @ SV17 @ SV72 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[389]) ).

thf(441,plain,
    ! [SV73: $i,SV60: $i,SV20: $i] :
      ( ( ( ~ ( subset @ SV20 @ SV60 )
          | ~ ( subset @ SV73 @ SV60 ) )
        = $true )
      | ( ( subset @ ( set_union2 @ SV20 @ SV73 ) @ SV60 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[390]) ).

thf(442,plain,
    ! [SV61: $i,SV21: $i] :
      ( ( ( in @ SV21 @ SV61 )
        = $false )
      | ( ( ~ ( in @ SV61 @ SV21 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[391]) ).

thf(443,plain,
    ! [SV62: $i,SV22: $i] :
      ( ( ( proper_subset @ SV22 @ SV62 )
        = $false )
      | ( ( ~ ( proper_subset @ SV62 @ SV22 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[392]) ).

thf(444,plain,
    ! [SV74: $i,SV26: $i] :
      ( ( ( empty @ ( set_union2 @ SV26 @ SV74 ) )
        = $false )
      | ( ( empty @ SV26 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[393]) ).

thf(445,plain,
    ! [SV27: $i,SV75: $i] :
      ( ( ( empty @ ( set_union2 @ SV75 @ SV27 ) )
        = $false )
      | ( ( empty @ SV27 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[394]) ).

thf(446,plain,
    ! [SV66: $i,SV32: $i] :
      ( ( ( disjoint @ SV32 @ SV66 )
        = $false )
      | ( ( disjoint @ SV66 @ SV32 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[395]) ).

thf(447,plain,
    ! [SV38: $i,SV67: $i] :
      ( ( ( empty @ SV67 )
        = $false )
      | ( ( ~ ( in @ SV38 @ SV67 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[397]) ).

thf(448,plain,
    ! [SV68: $i,SV39: $i] :
      ( ( ( SV39 = SV68 )
        = $true )
      | ( ( ~ ( empty @ SV39 ) )
        = $true )
      | ( ( ~ ( empty @ SV68 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[398]) ).

thf(449,plain,
    ! [SV40: $i] :
      ( ( ! [SY159: $i,SY160: $i] :
            ( ~ ( ~ ( ~ ( in @ ( sK7_D @ SY160 @ SY159 @ SV40 ) @ SV40 )
                    | ~ ( in @ ( sK7_D @ SY160 @ SY159 @ SV40 ) @ SY159 )
                    | ~ ( in @ ( sK7_D @ SY160 @ SY159 @ SV40 ) @ SY160 ) )
                | ~ ~ ( ~ ( ( in @ ( sK7_D @ SY160 @ SY159 @ SV40 ) @ SV40 )
                          | ( in @ ( sK7_D @ SY160 @ SY159 @ SV40 ) @ SY160 ) )
                      | ~ ( ( in @ ( sK7_D @ SY160 @ SY159 @ SV40 ) @ SY159 )
                          | ( in @ ( sK7_D @ SY160 @ SY159 @ SV40 ) @ SY160 ) ) ) )
            | ( SY160
              = ( set_intersection2 @ SV40 @ SY159 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[399]) ).

thf(450,plain,
    ! [SV40: $i] :
      ( ( ! [SY161: $i,SY162: $i] :
            ( ( SY162
             != ( set_intersection2 @ SV40 @ SY161 ) )
            | ~ ( ~ ! [SY163: $i] :
                      ( ~ ( in @ SY163 @ SV40 )
                      | ~ ( in @ SY163 @ SY161 )
                      | ( in @ SY163 @ SY162 ) )
                | ~ ~ ( ~ ! [SY164: $i] :
                            ( ~ ( in @ SY164 @ SY162 )
                            | ( in @ SY164 @ SV40 ) )
                      | ~ ! [SX3: $i] :
                            ( ~ ( in @ SX3 @ SY162 )
                            | ( in @ SX3 @ SY161 ) ) ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[400]) ).

thf(451,plain,
    ! [SV41: $i,SV69: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK3_C @ SV69 @ SV41 ) @ SV41 )
              | ~ ( in @ ( sK3_C @ SV69 @ SV41 ) @ SV69 ) )
          | ~ ( ( in @ ( sK3_C @ SV69 @ SV41 ) @ SV41 )
              | ( in @ ( sK3_C @ SV69 @ SV41 ) @ SV69 ) ) )
        = $false )
      | ( ( SV41 = SV69 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[401]) ).

thf(452,plain,
    ! [SV76: $i] :
      ( ( ! [SY194: $i] :
            ( ( ( set_difference @ SV76 @ SY194 )
             != empty_set )
            | ( subset @ SV76 @ SY194 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[402]) ).

thf(453,plain,
    ! [SV77: $i] :
      ( ( ! [SY195: $i] :
            ( ~ ( subset @ SV77 @ SY195 )
            | ( ( set_difference @ SV77 @ SY195 )
              = empty_set ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[403]) ).

thf(454,plain,
    ! [SV78: $i] :
      ( ( ! [SY196: $i] :
            ( ( ( set_intersection2 @ SV78 @ SY196 )
             != empty_set )
            | ( disjoint @ SV78 @ SY196 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[404]) ).

thf(455,plain,
    ! [SV79: $i] :
      ( ( ! [SY197: $i] :
            ( ~ ( disjoint @ SV79 @ SY197 )
            | ( ( set_intersection2 @ SV79 @ SY197 )
              = empty_set ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[405]) ).

thf(456,plain,
    ! [SV80: $i] :
      ( ( ( in @ ( sK11_B @ SV80 ) @ SV80 )
        | ( SV80 = empty_set ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[406]) ).

thf(457,plain,
    ! [SV81: $i] :
      ( ( ( SV81 != empty_set )
        | ! [SY198: $i] :
            ~ ( in @ SY198 @ SV81 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[407]) ).

thf(458,plain,
    ! [SV82: $i] :
      ( ( ! [SY199: $i] :
            ( ~ ( ~ ( in @ ( sK8_C @ SY199 @ SV82 ) @ SV82 )
                | ~ ~ ( in @ ( sK8_C @ SY199 @ SV82 ) @ SY199 ) )
            | ( subset @ SV82 @ SY199 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[408]) ).

thf(459,plain,
    ! [SV83: $i] :
      ( ( ! [SY200: $i] :
            ( ~ ( subset @ SV83 @ SY200 )
            | ! [SY201: $i] :
                ( ~ ( in @ SY201 @ SV83 )
                | ( in @ SY201 @ SY200 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[409]) ).

thf(460,plain,
    ! [SV84: $i] :
      ( ( ! [SY202: $i] :
            ( ( disjoint @ SV84 @ SY202 )
            | ( in @ ( sK13_C @ SY202 @ SV84 ) @ ( set_intersection2 @ SV84 @ SY202 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[410]) ).

thf(461,plain,
    ! [SV85: $i] :
      ( ( ! [SY203: $i] :
            ( ! [SY204: $i] :
                ~ ( in @ SY204 @ ( set_intersection2 @ SV85 @ SY203 ) )
            | ~ ( disjoint @ SV85 @ SY203 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[411]) ).

thf(462,plain,
    ! [SV42: $i] :
      ( ( ! [SY167: $i,SY168: $i] :
            ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK10_D @ SY168 @ SY167 @ SV42 ) @ SY168 )
                          | ( ( sK10_D @ SY168 @ SY167 @ SV42 )
                           != SV42 ) )
                      | ~ ( ~ ( in @ ( sK10_D @ SY168 @ SY167 @ SV42 ) @ SY168 )
                          | ( ( sK10_D @ SY168 @ SY167 @ SV42 )
                           != SY167 ) ) )
                | ~ ( ( in @ ( sK10_D @ SY168 @ SY167 @ SV42 ) @ SY168 )
                    | ( ( sK10_D @ SY168 @ SY167 @ SV42 )
                      = SV42 )
                    | ( ( sK10_D @ SY168 @ SY167 @ SV42 )
                      = SY167 ) ) )
            | ( SY168
              = ( unordered_pair @ SV42 @ SY167 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[412]) ).

thf(463,plain,
    ! [SV42: $i] :
      ( ( ! [SY169: $i,SY170: $i] :
            ( ( SY170
             != ( unordered_pair @ SV42 @ SY169 ) )
            | ~ ( ~ ! [SY171: $i] :
                      ( ~ ( in @ SY171 @ SY170 )
                      | ( SY171 = SV42 )
                      | ( SY171 = SY169 ) )
                | ~ ~ ( ~ ! [SY172: $i] :
                            ( ( SY172 != SV42 )
                            | ( in @ SY172 @ SY170 ) )
                      | ~ ! [SX3: $i] :
                            ( ( SX3 != SY169 )
                            | ( in @ SX3 @ SY170 ) ) ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[413]) ).

thf(464,plain,
    ! [SV86: $i] :
      ( ( ! [SY205: $i] :
            ( ( ( set_difference @ SV86 @ SY205 )
             != empty_set )
            | ( subset @ SV86 @ SY205 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[414]) ).

thf(465,plain,
    ! [SV87: $i] :
      ( ( ! [SY206: $i] :
            ( ~ ( subset @ SV87 @ SY206 )
            | ( ( set_difference @ SV87 @ SY206 )
              = empty_set ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[415]) ).

thf(466,plain,
    ! [SV88: $i] :
      ( ( ! [SY207: $i] :
            ( ~ ( subset @ SV88 @ SY207 )
            | ~ ( subset @ SY207 @ SV88 )
            | ( SV88 = SY207 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[416]) ).

thf(467,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)],[417]) ).

thf(468,plain,
    ! [SV89: $i] :
      ( ( ! [SY208: $i] :
            ( ~ ( ~ ( ( ( sK12_C @ SY208 @ SV89 )
                     != SV89 )
                    | ~ ( in @ ( sK12_C @ SY208 @ SV89 ) @ SY208 ) )
                | ~ ( ( ( sK12_C @ SY208 @ SV89 )
                      = SV89 )
                    | ( in @ ( sK12_C @ SY208 @ SV89 ) @ SY208 ) ) )
            | ( SY208
              = ( singleton @ SV89 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[418]) ).

thf(469,plain,
    ! [SV90: $i] :
      ( ( ! [SY209: $i] :
            ( ( SY209
             != ( singleton @ SV90 ) )
            | ~ ( ~ ! [SY210: $i] :
                      ( ( SY210 != SV90 )
                      | ( in @ SY210 @ SY209 ) )
                | ~ ! [SY211: $i] :
                      ( ~ ( in @ SY211 @ SY209 )
                      | ( SY211 = SV90 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[419]) ).

thf(470,plain,
    ! [SV91: $i] :
      ( ( ! [SY212: $i] :
            ( ( disjoint @ SV91 @ SY212 )
            | ~ ( ~ ( in @ ( sK14_C @ SY212 @ SV91 ) @ SV91 )
                | ~ ( in @ ( sK14_C @ SY212 @ SV91 ) @ SY212 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[420]) ).

thf(471,plain,
    ! [SV92: $i] :
      ( ( ! [SY213: $i] :
            ( ! [SY214: $i] :
                ( ~ ( in @ SY214 @ SV92 )
                | ~ ( in @ SY214 @ SY213 ) )
            | ~ ( disjoint @ SV92 @ SY213 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[421]) ).

thf(472,plain,
    ( ( in @ sK1_A @ sK2_SY126 )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[423]) ).

thf(473,plain,
    ! [SV93: $i] :
      ( ( ! [SY215: $i] :
            ( ( ( set_difference @ SV93 @ SY215 )
             != SV93 )
            | ( disjoint @ SV93 @ SY215 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[424]) ).

thf(474,plain,
    ! [SV94: $i] :
      ( ( ! [SY216: $i] :
            ( ~ ( disjoint @ SV94 @ SY216 )
            | ( ( set_difference @ SV94 @ SY216 )
              = SV94 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[425]) ).

thf(475,plain,
    ! [SV43: $i] :
      ( ( ! [SY174: $i,SY175: $i] :
            ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK9_D @ SY175 @ SY174 @ SV43 ) @ SY175 )
                          | ~ ( in @ ( sK9_D @ SY175 @ SY174 @ SV43 ) @ SV43 ) )
                      | ~ ( ~ ( in @ ( sK9_D @ SY175 @ SY174 @ SV43 ) @ SY175 )
                          | ~ ( in @ ( sK9_D @ SY175 @ SY174 @ SV43 ) @ SY174 ) ) )
                | ~ ( ( in @ ( sK9_D @ SY175 @ SY174 @ SV43 ) @ SY175 )
                    | ( in @ ( sK9_D @ SY175 @ SY174 @ SV43 ) @ SV43 )
                    | ( in @ ( sK9_D @ SY175 @ SY174 @ SV43 ) @ SY174 ) ) )
            | ( SY175
              = ( set_union2 @ SV43 @ SY174 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[426]) ).

thf(476,plain,
    ! [SV43: $i] :
      ( ( ! [SY176: $i,SY177: $i] :
            ( ( SY177
             != ( set_union2 @ SV43 @ SY176 ) )
            | ~ ( ~ ! [SY178: $i] :
                      ( ~ ( in @ SY178 @ SY177 )
                      | ( in @ SY178 @ SV43 )
                      | ( in @ SY178 @ SY176 ) )
                | ~ ~ ( ~ ! [SY179: $i] :
                            ( ~ ( in @ SY179 @ SV43 )
                            | ( in @ SY179 @ SY177 ) )
                      | ~ ! [SX3: $i] :
                            ( ~ ( in @ SX3 @ SY176 )
                            | ( in @ SX3 @ SY177 ) ) ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[427]) ).

thf(477,plain,
    ! [SV95: $i] :
      ( ( ! [SY217: $i] :
            ( ( SV95 = SY217 )
            | ~ ( subset @ SV95 @ SY217 )
            | ( proper_subset @ SV95 @ SY217 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[428]) ).

thf(478,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)],[429]) ).

thf(479,plain,
    ! [SV44: $i] :
      ( ( ! [SY181: $i,SY182: $i] :
            ( ~ ( ~ ( ~ ( in @ ( sK6_D @ SY182 @ SY181 @ SV44 ) @ SV44 )
                    | ( in @ ( sK6_D @ SY182 @ SY181 @ SV44 ) @ SY181 )
                    | ~ ( in @ ( sK6_D @ SY182 @ SY181 @ SV44 ) @ SY182 ) )
                | ~ ~ ( ~ ( ( in @ ( sK6_D @ SY182 @ SY181 @ SV44 ) @ SV44 )
                          | ( in @ ( sK6_D @ SY182 @ SY181 @ SV44 ) @ SY182 ) )
                      | ~ ( ~ ( in @ ( sK6_D @ SY182 @ SY181 @ SV44 ) @ SY181 )
                          | ( in @ ( sK6_D @ SY182 @ SY181 @ SV44 ) @ SY182 ) ) ) )
            | ( SY182
              = ( set_difference @ SV44 @ SY181 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[430]) ).

thf(480,plain,
    ! [SV44: $i] :
      ( ( ! [SY183: $i,SY184: $i] :
            ( ( SY184
             != ( set_difference @ SV44 @ SY183 ) )
            | ~ ( ~ ! [SY185: $i] :
                      ( ~ ( in @ SY185 @ SV44 )
                      | ( in @ SY185 @ SY183 )
                      | ( in @ SY185 @ SY184 ) )
                | ~ ~ ( ~ ! [SY186: $i] :
                            ( ~ ( in @ SY186 @ SY184 )
                            | ( in @ SY186 @ SV44 ) )
                      | ~ ! [SX3: $i] :
                            ( ~ ( in @ SX3 @ SY184 )
                            | ~ ( in @ SX3 @ SY183 ) ) ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[431]) ).

thf(481,plain,
    ! [SV70: $i,SV47: $i,SV4: $i] :
      ( ( ( ~ ( subset @ SV4 @ SV47 ) )
        = $true )
      | ( ( ~ ( subset @ SV4 @ SV70 ) )
        = $true )
      | ( ( subset @ SV4 @ ( set_intersection2 @ SV47 @ SV70 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[433]) ).

thf(482,plain,
    ! [SV71: $i,SV48: $i,SV5: $i] :
      ( ( ( ~ ( subset @ SV5 @ SV48 ) )
        = $true )
      | ( ( ~ ( subset @ SV48 @ SV71 ) )
        = $true )
      | ( ( subset @ SV5 @ SV71 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[434]) ).

thf(483,plain,
    ! [SV49: $i,SV96: $i,SV6: $i] :
      ( ( ( subset @ ( set_intersection2 @ SV6 @ SV96 ) @ ( set_intersection2 @ SV49 @ SV96 ) )
        = $true )
      | ( ( subset @ SV6 @ SV49 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[435]) ).

thf(484,plain,
    ! [SV51: $i,SV97: $i,SV9: $i] :
      ( ( ( subset @ ( set_difference @ SV9 @ SV97 ) @ ( set_difference @ SV51 @ SV97 ) )
        = $true )
      | ( ( subset @ SV9 @ SV51 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[437]) ).

thf(485,plain,
    ! [SV57: $i,SV16: $i] :
      ( ( ( subset @ SV16 @ SV57 )
        = $false )
      | ( ( proper_subset @ SV57 @ SV16 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[439]) ).

thf(486,plain,
    ! [SV17: $i,SV72: $i,SV58: $i] :
      ( ( ( ~ ( disjoint @ SV58 @ SV72 ) )
        = $true )
      | ( ( ~ ( subset @ SV17 @ SV58 ) )
        = $true )
      | ( ( disjoint @ SV17 @ SV72 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[440]) ).

thf(487,plain,
    ! [SV73: $i,SV60: $i,SV20: $i] :
      ( ( ( ~ ( subset @ SV20 @ SV60 ) )
        = $true )
      | ( ( ~ ( subset @ SV73 @ SV60 ) )
        = $true )
      | ( ( subset @ ( set_union2 @ SV20 @ SV73 ) @ SV60 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[441]) ).

thf(488,plain,
    ! [SV21: $i,SV61: $i] :
      ( ( ( in @ SV61 @ SV21 )
        = $false )
      | ( ( in @ SV21 @ SV61 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[442]) ).

thf(489,plain,
    ! [SV22: $i,SV62: $i] :
      ( ( ( proper_subset @ SV62 @ SV22 )
        = $false )
      | ( ( proper_subset @ SV22 @ SV62 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[443]) ).

thf(490,plain,
    ! [SV67: $i,SV38: $i] :
      ( ( ( in @ SV38 @ SV67 )
        = $false )
      | ( ( empty @ SV67 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[447]) ).

thf(491,plain,
    ! [SV68: $i,SV39: $i] :
      ( ( ( empty @ SV39 )
        = $false )
      | ( ( SV39 = SV68 )
        = $true )
      | ( ( ~ ( empty @ SV68 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[448]) ).

thf(492,plain,
    ! [SV40: $i,SV98: $i] :
      ( ( ! [SY218: $i] :
            ( ~ ( ~ ( ~ ( in @ ( sK7_D @ SY218 @ SV98 @ SV40 ) @ SV40 )
                    | ~ ( in @ ( sK7_D @ SY218 @ SV98 @ SV40 ) @ SV98 )
                    | ~ ( in @ ( sK7_D @ SY218 @ SV98 @ SV40 ) @ SY218 ) )
                | ~ ~ ( ~ ( ( in @ ( sK7_D @ SY218 @ SV98 @ SV40 ) @ SV40 )
                          | ( in @ ( sK7_D @ SY218 @ SV98 @ SV40 ) @ SY218 ) )
                      | ~ ( ( in @ ( sK7_D @ SY218 @ SV98 @ SV40 ) @ SV98 )
                          | ( in @ ( sK7_D @ SY218 @ SV98 @ SV40 ) @ SY218 ) ) ) )
            | ( SY218
              = ( set_intersection2 @ SV40 @ SV98 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[449]) ).

thf(493,plain,
    ! [SV99: $i,SV40: $i] :
      ( ( ! [SY219: $i] :
            ( ( SY219
             != ( set_intersection2 @ SV40 @ SV99 ) )
            | ~ ( ~ ! [SY220: $i] :
                      ( ~ ( in @ SY220 @ SV40 )
                      | ~ ( in @ SY220 @ SV99 )
                      | ( in @ SY220 @ SY219 ) )
                | ~ ~ ( ~ ! [SY164: $i] :
                            ( ~ ( in @ SY164 @ SY219 )
                            | ( in @ SY164 @ SV40 ) )
                      | ~ ! [SY222: $i] :
                            ( ~ ( in @ SY222 @ SY219 )
                            | ( in @ SY222 @ SV99 ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[450]) ).

thf(494,plain,
    ! [SV41: $i,SV69: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK3_C @ SV69 @ SV41 ) @ SV41 )
              | ~ ( in @ ( sK3_C @ SV69 @ SV41 ) @ SV69 ) ) )
        = $false )
      | ( ( SV41 = SV69 )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[451]) ).

thf(495,plain,
    ! [SV41: $i,SV69: $i] :
      ( ( ( ~ ( ( in @ ( sK3_C @ SV69 @ SV41 ) @ SV41 )
              | ( in @ ( sK3_C @ SV69 @ SV41 ) @ SV69 ) ) )
        = $false )
      | ( ( SV41 = SV69 )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[451]) ).

thf(496,plain,
    ! [SV100: $i,SV76: $i] :
      ( ( ( ( set_difference @ SV76 @ SV100 )
         != empty_set )
        | ( subset @ SV76 @ SV100 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[452]) ).

thf(497,plain,
    ! [SV101: $i,SV77: $i] :
      ( ( ~ ( subset @ SV77 @ SV101 )
        | ( ( set_difference @ SV77 @ SV101 )
          = empty_set ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[453]) ).

thf(498,plain,
    ! [SV102: $i,SV78: $i] :
      ( ( ( ( set_intersection2 @ SV78 @ SV102 )
         != empty_set )
        | ( disjoint @ SV78 @ SV102 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[454]) ).

thf(499,plain,
    ! [SV103: $i,SV79: $i] :
      ( ( ~ ( disjoint @ SV79 @ SV103 )
        | ( ( set_intersection2 @ SV79 @ SV103 )
          = empty_set ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[455]) ).

thf(500,plain,
    ! [SV80: $i] :
      ( ( ( in @ ( sK11_B @ SV80 ) @ SV80 )
        = $true )
      | ( ( SV80 = empty_set )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[456]) ).

thf(501,plain,
    ! [SV81: $i] :
      ( ( ( ( SV81 != empty_set ) )
        = $true )
      | ( ( ! [SY198: $i] :
              ~ ( in @ SY198 @ SV81 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[457]) ).

thf(502,plain,
    ! [SV82: $i,SV104: $i] :
      ( ( ~ ( ~ ( in @ ( sK8_C @ SV104 @ SV82 ) @ SV82 )
            | ~ ~ ( in @ ( sK8_C @ SV104 @ SV82 ) @ SV104 ) )
        | ( subset @ SV82 @ SV104 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[458]) ).

thf(503,plain,
    ! [SV105: $i,SV83: $i] :
      ( ( ~ ( subset @ SV83 @ SV105 )
        | ! [SY223: $i] :
            ( ~ ( in @ SY223 @ SV83 )
            | ( in @ SY223 @ SV105 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[459]) ).

thf(504,plain,
    ! [SV106: $i,SV84: $i] :
      ( ( ( disjoint @ SV84 @ SV106 )
        | ( in @ ( sK13_C @ SV106 @ SV84 ) @ ( set_intersection2 @ SV84 @ SV106 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[460]) ).

thf(505,plain,
    ! [SV107: $i,SV85: $i] :
      ( ( ! [SY224: $i] :
            ~ ( in @ SY224 @ ( set_intersection2 @ SV85 @ SV107 ) )
        | ~ ( disjoint @ SV85 @ SV107 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[461]) ).

thf(506,plain,
    ! [SV42: $i,SV108: $i] :
      ( ( ! [SY225: $i] :
            ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK10_D @ SY225 @ SV108 @ SV42 ) @ SY225 )
                          | ( ( sK10_D @ SY225 @ SV108 @ SV42 )
                           != SV42 ) )
                      | ~ ( ~ ( in @ ( sK10_D @ SY225 @ SV108 @ SV42 ) @ SY225 )
                          | ( ( sK10_D @ SY225 @ SV108 @ SV42 )
                           != SV108 ) ) )
                | ~ ( ( in @ ( sK10_D @ SY225 @ SV108 @ SV42 ) @ SY225 )
                    | ( ( sK10_D @ SY225 @ SV108 @ SV42 )
                      = SV42 )
                    | ( ( sK10_D @ SY225 @ SV108 @ SV42 )
                      = SV108 ) ) )
            | ( SY225
              = ( unordered_pair @ SV42 @ SV108 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[462]) ).

thf(507,plain,
    ! [SV109: $i,SV42: $i] :
      ( ( ! [SY226: $i] :
            ( ( SY226
             != ( unordered_pair @ SV42 @ SV109 ) )
            | ~ ( ~ ! [SY227: $i] :
                      ( ~ ( in @ SY227 @ SY226 )
                      | ( SY227 = SV42 )
                      | ( SY227 = SV109 ) )
                | ~ ~ ( ~ ! [SY172: $i] :
                            ( ( SY172 != SV42 )
                            | ( in @ SY172 @ SY226 ) )
                      | ~ ! [SY229: $i] :
                            ( ( SY229 != SV109 )
                            | ( in @ SY229 @ SY226 ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[463]) ).

thf(508,plain,
    ! [SV110: $i,SV86: $i] :
      ( ( ( ( set_difference @ SV86 @ SV110 )
         != empty_set )
        | ( subset @ SV86 @ SV110 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[464]) ).

thf(509,plain,
    ! [SV111: $i,SV87: $i] :
      ( ( ~ ( subset @ SV87 @ SV111 )
        | ( ( set_difference @ SV87 @ SV111 )
          = empty_set ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[465]) ).

thf(510,plain,
    ! [SV112: $i,SV88: $i] :
      ( ( ~ ( subset @ SV88 @ SV112 )
        | ~ ( subset @ SV112 @ SV88 )
        | ( SV88 = SV112 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[466]) ).

thf(511,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( SX0 != SX1 )
            | ( subset @ SX0 @ SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[467]) ).

thf(512,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( SX0 != SX1 )
            | ( subset @ SX1 @ SX0 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[467]) ).

thf(513,plain,
    ! [SV89: $i,SV113: $i] :
      ( ( ~ ( ~ ( ( ( sK12_C @ SV113 @ SV89 )
                 != SV89 )
                | ~ ( in @ ( sK12_C @ SV113 @ SV89 ) @ SV113 ) )
            | ~ ( ( ( sK12_C @ SV113 @ SV89 )
                  = SV89 )
                | ( in @ ( sK12_C @ SV113 @ SV89 ) @ SV113 ) ) )
        | ( SV113
          = ( singleton @ SV89 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[468]) ).

thf(514,plain,
    ! [SV90: $i,SV114: $i] :
      ( ( ( SV114
         != ( singleton @ SV90 ) )
        | ~ ( ~ ! [SY230: $i] :
                  ( ( SY230 != SV90 )
                  | ( in @ SY230 @ SV114 ) )
            | ~ ! [SY231: $i] :
                  ( ~ ( in @ SY231 @ SV114 )
                  | ( SY231 = SV90 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[469]) ).

thf(515,plain,
    ! [SV115: $i,SV91: $i] :
      ( ( ( disjoint @ SV91 @ SV115 )
        | ~ ( ~ ( in @ ( sK14_C @ SV115 @ SV91 ) @ SV91 )
            | ~ ( in @ ( sK14_C @ SV115 @ SV91 ) @ SV115 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[470]) ).

thf(516,plain,
    ! [SV116: $i,SV92: $i] :
      ( ( ! [SY232: $i] :
            ( ~ ( in @ SY232 @ SV92 )
            | ~ ( in @ SY232 @ SV116 ) )
        | ~ ( disjoint @ SV92 @ SV116 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[471]) ).

thf(517,plain,
    ! [SV117: $i,SV93: $i] :
      ( ( ( ( set_difference @ SV93 @ SV117 )
         != SV93 )
        | ( disjoint @ SV93 @ SV117 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[473]) ).

thf(518,plain,
    ! [SV118: $i,SV94: $i] :
      ( ( ~ ( disjoint @ SV94 @ SV118 )
        | ( ( set_difference @ SV94 @ SV118 )
          = SV94 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[474]) ).

thf(519,plain,
    ! [SV43: $i,SV119: $i] :
      ( ( ! [SY233: $i] :
            ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK9_D @ SY233 @ SV119 @ SV43 ) @ SY233 )
                          | ~ ( in @ ( sK9_D @ SY233 @ SV119 @ SV43 ) @ SV43 ) )
                      | ~ ( ~ ( in @ ( sK9_D @ SY233 @ SV119 @ SV43 ) @ SY233 )
                          | ~ ( in @ ( sK9_D @ SY233 @ SV119 @ SV43 ) @ SV119 ) ) )
                | ~ ( ( in @ ( sK9_D @ SY233 @ SV119 @ SV43 ) @ SY233 )
                    | ( in @ ( sK9_D @ SY233 @ SV119 @ SV43 ) @ SV43 )
                    | ( in @ ( sK9_D @ SY233 @ SV119 @ SV43 ) @ SV119 ) ) )
            | ( SY233
              = ( set_union2 @ SV43 @ SV119 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[475]) ).

thf(520,plain,
    ! [SV120: $i,SV43: $i] :
      ( ( ! [SY234: $i] :
            ( ( SY234
             != ( set_union2 @ SV43 @ SV120 ) )
            | ~ ( ~ ! [SY235: $i] :
                      ( ~ ( in @ SY235 @ SY234 )
                      | ( in @ SY235 @ SV43 )
                      | ( in @ SY235 @ SV120 ) )
                | ~ ~ ( ~ ! [SY179: $i] :
                            ( ~ ( in @ SY179 @ SV43 )
                            | ( in @ SY179 @ SY234 ) )
                      | ~ ! [SY237: $i] :
                            ( ~ ( in @ SY237 @ SV120 )
                            | ( in @ SY237 @ SY234 ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[476]) ).

thf(521,plain,
    ! [SV121: $i,SV95: $i] :
      ( ( ( SV95 = SV121 )
        | ~ ( subset @ SV95 @ SV121 )
        | ( proper_subset @ SV95 @ SV121 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[477]) ).

thf(522,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( proper_subset @ SX0 @ SX1 )
            | ( SX0 != SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[478]) ).

thf(523,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( proper_subset @ SX0 @ SX1 )
            | ( subset @ SX0 @ SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[478]) ).

thf(524,plain,
    ! [SV44: $i,SV122: $i] :
      ( ( ! [SY238: $i] :
            ( ~ ( ~ ( ~ ( in @ ( sK6_D @ SY238 @ SV122 @ SV44 ) @ SV44 )
                    | ( in @ ( sK6_D @ SY238 @ SV122 @ SV44 ) @ SV122 )
                    | ~ ( in @ ( sK6_D @ SY238 @ SV122 @ SV44 ) @ SY238 ) )
                | ~ ~ ( ~ ( ( in @ ( sK6_D @ SY238 @ SV122 @ SV44 ) @ SV44 )
                          | ( in @ ( sK6_D @ SY238 @ SV122 @ SV44 ) @ SY238 ) )
                      | ~ ( ~ ( in @ ( sK6_D @ SY238 @ SV122 @ SV44 ) @ SV122 )
                          | ( in @ ( sK6_D @ SY238 @ SV122 @ SV44 ) @ SY238 ) ) ) )
            | ( SY238
              = ( set_difference @ SV44 @ SV122 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[479]) ).

thf(525,plain,
    ! [SV123: $i,SV44: $i] :
      ( ( ! [SY239: $i] :
            ( ( SY239
             != ( set_difference @ SV44 @ SV123 ) )
            | ~ ( ~ ! [SY240: $i] :
                      ( ~ ( in @ SY240 @ SV44 )
                      | ( in @ SY240 @ SV123 )
                      | ( in @ SY240 @ SY239 ) )
                | ~ ~ ( ~ ! [SY186: $i] :
                            ( ~ ( in @ SY186 @ SY239 )
                            | ( in @ SY186 @ SV44 ) )
                      | ~ ! [SY242: $i] :
                            ( ~ ( in @ SY242 @ SY239 )
                            | ~ ( in @ SY242 @ SV123 ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[480]) ).

thf(526,plain,
    ! [SV70: $i,SV47: $i,SV4: $i] :
      ( ( ( subset @ SV4 @ SV47 )
        = $false )
      | ( ( ~ ( subset @ SV4 @ SV70 ) )
        = $true )
      | ( ( subset @ SV4 @ ( set_intersection2 @ SV47 @ SV70 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[481]) ).

thf(527,plain,
    ! [SV71: $i,SV48: $i,SV5: $i] :
      ( ( ( subset @ SV5 @ SV48 )
        = $false )
      | ( ( ~ ( subset @ SV48 @ SV71 ) )
        = $true )
      | ( ( subset @ SV5 @ SV71 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[482]) ).

thf(528,plain,
    ! [SV17: $i,SV72: $i,SV58: $i] :
      ( ( ( disjoint @ SV58 @ SV72 )
        = $false )
      | ( ( ~ ( subset @ SV17 @ SV58 ) )
        = $true )
      | ( ( disjoint @ SV17 @ SV72 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[486]) ).

thf(529,plain,
    ! [SV73: $i,SV60: $i,SV20: $i] :
      ( ( ( subset @ SV20 @ SV60 )
        = $false )
      | ( ( ~ ( subset @ SV73 @ SV60 ) )
        = $true )
      | ( ( subset @ ( set_union2 @ SV20 @ SV73 ) @ SV60 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[487]) ).

thf(530,plain,
    ! [SV39: $i,SV68: $i] :
      ( ( ( empty @ SV68 )
        = $false )
      | ( ( SV39 = SV68 )
        = $true )
      | ( ( empty @ SV39 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[491]) ).

thf(531,plain,
    ! [SV40: $i,SV98: $i,SV124: $i] :
      ( ( ~ ( ~ ( ~ ( in @ ( sK7_D @ SV124 @ SV98 @ SV40 ) @ SV40 )
                | ~ ( in @ ( sK7_D @ SV124 @ SV98 @ SV40 ) @ SV98 )
                | ~ ( in @ ( sK7_D @ SV124 @ SV98 @ SV40 ) @ SV124 ) )
            | ~ ~ ( ~ ( ( in @ ( sK7_D @ SV124 @ SV98 @ SV40 ) @ SV40 )
                      | ( in @ ( sK7_D @ SV124 @ SV98 @ SV40 ) @ SV124 ) )
                  | ~ ( ( in @ ( sK7_D @ SV124 @ SV98 @ SV40 ) @ SV98 )
                      | ( in @ ( sK7_D @ SV124 @ SV98 @ SV40 ) @ SV124 ) ) ) )
        | ( SV124
          = ( set_intersection2 @ SV40 @ SV98 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[492]) ).

thf(532,plain,
    ! [SV99: $i,SV40: $i,SV125: $i] :
      ( ( ( SV125
         != ( set_intersection2 @ SV40 @ SV99 ) )
        | ~ ( ~ ! [SY243: $i] :
                  ( ~ ( in @ SY243 @ SV40 )
                  | ~ ( in @ SY243 @ SV99 )
                  | ( in @ SY243 @ SV125 ) )
            | ~ ~ ( ~ ! [SY244: $i] :
                        ( ~ ( in @ SY244 @ SV125 )
                        | ( in @ SY244 @ SV40 ) )
                  | ~ ! [SY245: $i] :
                        ( ~ ( in @ SY245 @ SV125 )
                        | ( in @ SY245 @ SV99 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[493]) ).

thf(533,plain,
    ! [SV41: $i,SV69: $i] :
      ( ( ( ~ ( in @ ( sK3_C @ SV69 @ SV41 ) @ SV41 )
          | ~ ( in @ ( sK3_C @ SV69 @ SV41 ) @ SV69 ) )
        = $true )
      | ( ( SV41 = SV69 )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[494]) ).

thf(534,plain,
    ! [SV41: $i,SV69: $i] :
      ( ( ( ( in @ ( sK3_C @ SV69 @ SV41 ) @ SV41 )
          | ( in @ ( sK3_C @ SV69 @ SV41 ) @ SV69 ) )
        = $true )
      | ( ( SV41 = SV69 )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[495]) ).

thf(535,plain,
    ! [SV100: $i,SV76: $i] :
      ( ( ( ( ( set_difference @ SV76 @ SV100 )
           != empty_set ) )
        = $true )
      | ( ( subset @ SV76 @ SV100 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[496]) ).

thf(536,plain,
    ! [SV101: $i,SV77: $i] :
      ( ( ( ~ ( subset @ SV77 @ SV101 ) )
        = $true )
      | ( ( ( set_difference @ SV77 @ SV101 )
          = empty_set )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[497]) ).

thf(537,plain,
    ! [SV102: $i,SV78: $i] :
      ( ( ( ( ( set_intersection2 @ SV78 @ SV102 )
           != empty_set ) )
        = $true )
      | ( ( disjoint @ SV78 @ SV102 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[498]) ).

thf(538,plain,
    ! [SV103: $i,SV79: $i] :
      ( ( ( ~ ( disjoint @ SV79 @ SV103 ) )
        = $true )
      | ( ( ( set_intersection2 @ SV79 @ SV103 )
          = empty_set )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[499]) ).

thf(539,plain,
    ! [SV81: $i] :
      ( ( ( SV81 = empty_set )
        = $false )
      | ( ( ! [SY198: $i] :
              ~ ( in @ SY198 @ SV81 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[501]) ).

thf(540,plain,
    ! [SV82: $i,SV104: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK8_C @ SV104 @ SV82 ) @ SV82 )
              | ~ ~ ( in @ ( sK8_C @ SV104 @ SV82 ) @ SV104 ) ) )
        = $true )
      | ( ( subset @ SV82 @ SV104 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[502]) ).

thf(541,plain,
    ! [SV105: $i,SV83: $i] :
      ( ( ( ~ ( subset @ SV83 @ SV105 ) )
        = $true )
      | ( ( ! [SY223: $i] :
              ( ~ ( in @ SY223 @ SV83 )
              | ( in @ SY223 @ SV105 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[503]) ).

thf(542,plain,
    ! [SV106: $i,SV84: $i] :
      ( ( ( disjoint @ SV84 @ SV106 )
        = $true )
      | ( ( in @ ( sK13_C @ SV106 @ SV84 ) @ ( set_intersection2 @ SV84 @ SV106 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[504]) ).

thf(543,plain,
    ! [SV107: $i,SV85: $i] :
      ( ( ( ! [SY224: $i] :
              ~ ( in @ SY224 @ ( set_intersection2 @ SV85 @ SV107 ) ) )
        = $true )
      | ( ( ~ ( disjoint @ SV85 @ SV107 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[505]) ).

thf(544,plain,
    ! [SV42: $i,SV108: $i,SV126: $i] :
      ( ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK10_D @ SV126 @ SV108 @ SV42 ) @ SV126 )
                      | ( ( sK10_D @ SV126 @ SV108 @ SV42 )
                       != SV42 ) )
                  | ~ ( ~ ( in @ ( sK10_D @ SV126 @ SV108 @ SV42 ) @ SV126 )
                      | ( ( sK10_D @ SV126 @ SV108 @ SV42 )
                       != SV108 ) ) )
            | ~ ( ( in @ ( sK10_D @ SV126 @ SV108 @ SV42 ) @ SV126 )
                | ( ( sK10_D @ SV126 @ SV108 @ SV42 )
                  = SV42 )
                | ( ( sK10_D @ SV126 @ SV108 @ SV42 )
                  = SV108 ) ) )
        | ( SV126
          = ( unordered_pair @ SV42 @ SV108 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[506]) ).

thf(545,plain,
    ! [SV109: $i,SV42: $i,SV127: $i] :
      ( ( ( SV127
         != ( unordered_pair @ SV42 @ SV109 ) )
        | ~ ( ~ ! [SY246: $i] :
                  ( ~ ( in @ SY246 @ SV127 )
                  | ( SY246 = SV42 )
                  | ( SY246 = SV109 ) )
            | ~ ~ ( ~ ! [SY247: $i] :
                        ( ( SY247 != SV42 )
                        | ( in @ SY247 @ SV127 ) )
                  | ~ ! [SY248: $i] :
                        ( ( SY248 != SV109 )
                        | ( in @ SY248 @ SV127 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[507]) ).

thf(546,plain,
    ! [SV110: $i,SV86: $i] :
      ( ( ( ( ( set_difference @ SV86 @ SV110 )
           != empty_set ) )
        = $true )
      | ( ( subset @ SV86 @ SV110 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[508]) ).

thf(547,plain,
    ! [SV111: $i,SV87: $i] :
      ( ( ( ~ ( subset @ SV87 @ SV111 ) )
        = $true )
      | ( ( ( set_difference @ SV87 @ SV111 )
          = empty_set )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[509]) ).

thf(548,plain,
    ! [SV112: $i,SV88: $i] :
      ( ( ( ~ ( subset @ SV88 @ SV112 )
          | ~ ( subset @ SV112 @ SV88 ) )
        = $true )
      | ( ( SV88 = SV112 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[510]) ).

thf(549,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ( SX0 != SX1 )
          | ( subset @ SX0 @ SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[511]) ).

thf(550,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ( SX0 != SX1 )
          | ( subset @ SX1 @ SX0 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[512]) ).

thf(551,plain,
    ! [SV89: $i,SV113: $i] :
      ( ( ( ~ ( ~ ( ( ( sK12_C @ SV113 @ SV89 )
                   != SV89 )
                  | ~ ( in @ ( sK12_C @ SV113 @ SV89 ) @ SV113 ) )
              | ~ ( ( ( sK12_C @ SV113 @ SV89 )
                    = SV89 )
                  | ( in @ ( sK12_C @ SV113 @ SV89 ) @ SV113 ) ) ) )
        = $true )
      | ( ( SV113
          = ( singleton @ SV89 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[513]) ).

thf(552,plain,
    ! [SV90: $i,SV114: $i] :
      ( ( ( ( SV114
           != ( singleton @ SV90 ) ) )
        = $true )
      | ( ( ~ ( ~ ! [SY230: $i] :
                    ( ( SY230 != SV90 )
                    | ( in @ SY230 @ SV114 ) )
              | ~ ! [SY231: $i] :
                    ( ~ ( in @ SY231 @ SV114 )
                    | ( SY231 = SV90 ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[514]) ).

thf(553,plain,
    ! [SV115: $i,SV91: $i] :
      ( ( ( disjoint @ SV91 @ SV115 )
        = $true )
      | ( ( ~ ( ~ ( in @ ( sK14_C @ SV115 @ SV91 ) @ SV91 )
              | ~ ( in @ ( sK14_C @ SV115 @ SV91 ) @ SV115 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[515]) ).

thf(554,plain,
    ! [SV116: $i,SV92: $i] :
      ( ( ( ! [SY232: $i] :
              ( ~ ( in @ SY232 @ SV92 )
              | ~ ( in @ SY232 @ SV116 ) ) )
        = $true )
      | ( ( ~ ( disjoint @ SV92 @ SV116 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[516]) ).

thf(555,plain,
    ! [SV117: $i,SV93: $i] :
      ( ( ( ( ( set_difference @ SV93 @ SV117 )
           != SV93 ) )
        = $true )
      | ( ( disjoint @ SV93 @ SV117 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[517]) ).

thf(556,plain,
    ! [SV118: $i,SV94: $i] :
      ( ( ( ~ ( disjoint @ SV94 @ SV118 ) )
        = $true )
      | ( ( ( set_difference @ SV94 @ SV118 )
          = SV94 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[518]) ).

thf(557,plain,
    ! [SV43: $i,SV119: $i,SV128: $i] :
      ( ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK9_D @ SV128 @ SV119 @ SV43 ) @ SV128 )
                      | ~ ( in @ ( sK9_D @ SV128 @ SV119 @ SV43 ) @ SV43 ) )
                  | ~ ( ~ ( in @ ( sK9_D @ SV128 @ SV119 @ SV43 ) @ SV128 )
                      | ~ ( in @ ( sK9_D @ SV128 @ SV119 @ SV43 ) @ SV119 ) ) )
            | ~ ( ( in @ ( sK9_D @ SV128 @ SV119 @ SV43 ) @ SV128 )
                | ( in @ ( sK9_D @ SV128 @ SV119 @ SV43 ) @ SV43 )
                | ( in @ ( sK9_D @ SV128 @ SV119 @ SV43 ) @ SV119 ) ) )
        | ( SV128
          = ( set_union2 @ SV43 @ SV119 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[519]) ).

thf(558,plain,
    ! [SV120: $i,SV43: $i,SV129: $i] :
      ( ( ( SV129
         != ( set_union2 @ SV43 @ SV120 ) )
        | ~ ( ~ ! [SY249: $i] :
                  ( ~ ( in @ SY249 @ SV129 )
                  | ( in @ SY249 @ SV43 )
                  | ( in @ SY249 @ SV120 ) )
            | ~ ~ ( ~ ! [SY250: $i] :
                        ( ~ ( in @ SY250 @ SV43 )
                        | ( in @ SY250 @ SV129 ) )
                  | ~ ! [SY251: $i] :
                        ( ~ ( in @ SY251 @ SV120 )
                        | ( in @ SY251 @ SV129 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[520]) ).

thf(559,plain,
    ! [SV121: $i,SV95: $i] :
      ( ( ( ( SV95 = SV121 )
          | ~ ( subset @ SV95 @ SV121 ) )
        = $true )
      | ( ( proper_subset @ SV95 @ SV121 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[521]) ).

thf(560,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( proper_subset @ SX0 @ SX1 )
          | ( SX0 != SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[522]) ).

thf(561,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( proper_subset @ SX0 @ SX1 )
          | ( subset @ SX0 @ SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[523]) ).

thf(562,plain,
    ! [SV44: $i,SV122: $i,SV130: $i] :
      ( ( ~ ( ~ ( ~ ( in @ ( sK6_D @ SV130 @ SV122 @ SV44 ) @ SV44 )
                | ( in @ ( sK6_D @ SV130 @ SV122 @ SV44 ) @ SV122 )
                | ~ ( in @ ( sK6_D @ SV130 @ SV122 @ SV44 ) @ SV130 ) )
            | ~ ~ ( ~ ( ( in @ ( sK6_D @ SV130 @ SV122 @ SV44 ) @ SV44 )
                      | ( in @ ( sK6_D @ SV130 @ SV122 @ SV44 ) @ SV130 ) )
                  | ~ ( ~ ( in @ ( sK6_D @ SV130 @ SV122 @ SV44 ) @ SV122 )
                      | ( in @ ( sK6_D @ SV130 @ SV122 @ SV44 ) @ SV130 ) ) ) )
        | ( SV130
          = ( set_difference @ SV44 @ SV122 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[524]) ).

thf(563,plain,
    ! [SV123: $i,SV44: $i,SV131: $i] :
      ( ( ( SV131
         != ( set_difference @ SV44 @ SV123 ) )
        | ~ ( ~ ! [SY252: $i] :
                  ( ~ ( in @ SY252 @ SV44 )
                  | ( in @ SY252 @ SV123 )
                  | ( in @ SY252 @ SV131 ) )
            | ~ ~ ( ~ ! [SY253: $i] :
                        ( ~ ( in @ SY253 @ SV131 )
                        | ( in @ SY253 @ SV44 ) )
                  | ~ ! [SY254: $i] :
                        ( ~ ( in @ SY254 @ SV131 )
                        | ~ ( in @ SY254 @ SV123 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[525]) ).

thf(564,plain,
    ! [SV47: $i,SV70: $i,SV4: $i] :
      ( ( ( subset @ SV4 @ SV70 )
        = $false )
      | ( ( subset @ SV4 @ SV47 )
        = $false )
      | ( ( subset @ SV4 @ ( set_intersection2 @ SV47 @ SV70 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[526]) ).

thf(565,plain,
    ! [SV5: $i,SV71: $i,SV48: $i] :
      ( ( ( subset @ SV48 @ SV71 )
        = $false )
      | ( ( subset @ SV5 @ SV48 )
        = $false )
      | ( ( subset @ SV5 @ SV71 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[527]) ).

thf(566,plain,
    ! [SV72: $i,SV58: $i,SV17: $i] :
      ( ( ( subset @ SV17 @ SV58 )
        = $false )
      | ( ( disjoint @ SV58 @ SV72 )
        = $false )
      | ( ( disjoint @ SV17 @ SV72 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[528]) ).

thf(567,plain,
    ! [SV20: $i,SV60: $i,SV73: $i] :
      ( ( ( subset @ SV73 @ SV60 )
        = $false )
      | ( ( subset @ SV20 @ SV60 )
        = $false )
      | ( ( subset @ ( set_union2 @ SV20 @ SV73 ) @ SV60 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[529]) ).

thf(568,plain,
    ! [SV40: $i,SV98: $i,SV124: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ ( sK7_D @ SV124 @ SV98 @ SV40 ) @ SV40 )
                  | ~ ( in @ ( sK7_D @ SV124 @ SV98 @ SV40 ) @ SV98 )
                  | ~ ( in @ ( sK7_D @ SV124 @ SV98 @ SV40 ) @ SV124 ) )
              | ~ ~ ( ~ ( ( in @ ( sK7_D @ SV124 @ SV98 @ SV40 ) @ SV40 )
                        | ( in @ ( sK7_D @ SV124 @ SV98 @ SV40 ) @ SV124 ) )
                    | ~ ( ( in @ ( sK7_D @ SV124 @ SV98 @ SV40 ) @ SV98 )
                        | ( in @ ( sK7_D @ SV124 @ SV98 @ SV40 ) @ SV124 ) ) ) ) )
        = $true )
      | ( ( SV124
          = ( set_intersection2 @ SV40 @ SV98 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[531]) ).

thf(569,plain,
    ! [SV99: $i,SV40: $i,SV125: $i] :
      ( ( ( ( SV125
           != ( set_intersection2 @ SV40 @ SV99 ) ) )
        = $true )
      | ( ( ~ ( ~ ! [SY243: $i] :
                    ( ~ ( in @ SY243 @ SV40 )
                    | ~ ( in @ SY243 @ SV99 )
                    | ( in @ SY243 @ SV125 ) )
              | ~ ~ ( ~ ! [SY244: $i] :
                          ( ~ ( in @ SY244 @ SV125 )
                          | ( in @ SY244 @ SV40 ) )
                    | ~ ! [SY245: $i] :
                          ( ~ ( in @ SY245 @ SV125 )
                          | ( in @ SY245 @ SV99 ) ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[532]) ).

thf(570,plain,
    ! [SV41: $i,SV69: $i] :
      ( ( ( ~ ( in @ ( sK3_C @ SV69 @ SV41 ) @ SV41 ) )
        = $true )
      | ( ( ~ ( in @ ( sK3_C @ SV69 @ SV41 ) @ SV69 ) )
        = $true )
      | ( ( SV41 = SV69 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[533]) ).

thf(571,plain,
    ! [SV41: $i,SV69: $i] :
      ( ( ( in @ ( sK3_C @ SV69 @ SV41 ) @ SV41 )
        = $true )
      | ( ( in @ ( sK3_C @ SV69 @ SV41 ) @ SV69 )
        = $true )
      | ( ( SV41 = SV69 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[534]) ).

thf(572,plain,
    ! [SV100: $i,SV76: $i] :
      ( ( ( ( set_difference @ SV76 @ SV100 )
          = empty_set )
        = $false )
      | ( ( subset @ SV76 @ SV100 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[535]) ).

thf(573,plain,
    ! [SV101: $i,SV77: $i] :
      ( ( ( subset @ SV77 @ SV101 )
        = $false )
      | ( ( ( set_difference @ SV77 @ SV101 )
          = empty_set )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[536]) ).

thf(574,plain,
    ! [SV102: $i,SV78: $i] :
      ( ( ( ( set_intersection2 @ SV78 @ SV102 )
          = empty_set )
        = $false )
      | ( ( disjoint @ SV78 @ SV102 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[537]) ).

thf(575,plain,
    ! [SV103: $i,SV79: $i] :
      ( ( ( disjoint @ SV79 @ SV103 )
        = $false )
      | ( ( ( set_intersection2 @ SV79 @ SV103 )
          = empty_set )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[538]) ).

thf(576,plain,
    ! [SV81: $i,SV132: $i] :
      ( ( ( ~ ( in @ SV132 @ SV81 ) )
        = $true )
      | ( ( SV81 = empty_set )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[539]) ).

thf(577,plain,
    ! [SV82: $i,SV104: $i] :
      ( ( ( ~ ( in @ ( sK8_C @ SV104 @ SV82 ) @ SV82 )
          | ~ ~ ( in @ ( sK8_C @ SV104 @ SV82 ) @ SV104 ) )
        = $false )
      | ( ( subset @ SV82 @ SV104 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[540]) ).

thf(578,plain,
    ! [SV105: $i,SV83: $i] :
      ( ( ( subset @ SV83 @ SV105 )
        = $false )
      | ( ( ! [SY223: $i] :
              ( ~ ( in @ SY223 @ SV83 )
              | ( in @ SY223 @ SV105 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[541]) ).

thf(579,plain,
    ! [SV107: $i,SV85: $i,SV133: $i] :
      ( ( ( ~ ( in @ SV133 @ ( set_intersection2 @ SV85 @ SV107 ) ) )
        = $true )
      | ( ( ~ ( disjoint @ SV85 @ SV107 ) )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[543]) ).

thf(580,plain,
    ! [SV42: $i,SV108: $i,SV126: $i] :
      ( ( ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK10_D @ SV126 @ SV108 @ SV42 ) @ SV126 )
                        | ( ( sK10_D @ SV126 @ SV108 @ SV42 )
                         != SV42 ) )
                    | ~ ( ~ ( in @ ( sK10_D @ SV126 @ SV108 @ SV42 ) @ SV126 )
                        | ( ( sK10_D @ SV126 @ SV108 @ SV42 )
                         != SV108 ) ) )
              | ~ ( ( in @ ( sK10_D @ SV126 @ SV108 @ SV42 ) @ SV126 )
                  | ( ( sK10_D @ SV126 @ SV108 @ SV42 )
                    = SV42 )
                  | ( ( sK10_D @ SV126 @ SV108 @ SV42 )
                    = SV108 ) ) ) )
        = $true )
      | ( ( SV126
          = ( unordered_pair @ SV42 @ SV108 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[544]) ).

thf(581,plain,
    ! [SV109: $i,SV42: $i,SV127: $i] :
      ( ( ( ( SV127
           != ( unordered_pair @ SV42 @ SV109 ) ) )
        = $true )
      | ( ( ~ ( ~ ! [SY246: $i] :
                    ( ~ ( in @ SY246 @ SV127 )
                    | ( SY246 = SV42 )
                    | ( SY246 = SV109 ) )
              | ~ ~ ( ~ ! [SY247: $i] :
                          ( ( SY247 != SV42 )
                          | ( in @ SY247 @ SV127 ) )
                    | ~ ! [SY248: $i] :
                          ( ( SY248 != SV109 )
                          | ( in @ SY248 @ SV127 ) ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[545]) ).

thf(582,plain,
    ! [SV110: $i,SV86: $i] :
      ( ( ( ( set_difference @ SV86 @ SV110 )
          = empty_set )
        = $false )
      | ( ( subset @ SV86 @ SV110 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[546]) ).

thf(583,plain,
    ! [SV111: $i,SV87: $i] :
      ( ( ( subset @ SV87 @ SV111 )
        = $false )
      | ( ( ( set_difference @ SV87 @ SV111 )
          = empty_set )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[547]) ).

thf(584,plain,
    ! [SV112: $i,SV88: $i] :
      ( ( ( ~ ( subset @ SV88 @ SV112 ) )
        = $true )
      | ( ( ~ ( subset @ SV112 @ SV88 ) )
        = $true )
      | ( ( SV88 = SV112 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[548]) ).

thf(585,plain,
    ! [SV134: $i] :
      ( ( ! [SY255: $i] :
            ( ( SV134 != SY255 )
            | ( subset @ SV134 @ SY255 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[549]) ).

thf(586,plain,
    ! [SV135: $i] :
      ( ( ! [SY256: $i] :
            ( ( SV135 != SY256 )
            | ( subset @ SY256 @ SV135 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[550]) ).

thf(587,plain,
    ! [SV89: $i,SV113: $i] :
      ( ( ( ~ ( ( ( sK12_C @ SV113 @ SV89 )
               != SV89 )
              | ~ ( in @ ( sK12_C @ SV113 @ SV89 ) @ SV113 ) )
          | ~ ( ( ( sK12_C @ SV113 @ SV89 )
                = SV89 )
              | ( in @ ( sK12_C @ SV113 @ SV89 ) @ SV113 ) ) )
        = $false )
      | ( ( SV113
          = ( singleton @ SV89 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[551]) ).

thf(588,plain,
    ! [SV90: $i,SV114: $i] :
      ( ( ( SV114
          = ( singleton @ SV90 ) )
        = $false )
      | ( ( ~ ( ~ ! [SY230: $i] :
                    ( ( SY230 != SV90 )
                    | ( in @ SY230 @ SV114 ) )
              | ~ ! [SY231: $i] :
                    ( ~ ( in @ SY231 @ SV114 )
                    | ( SY231 = SV90 ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[552]) ).

thf(589,plain,
    ! [SV91: $i,SV115: $i] :
      ( ( ( ~ ( in @ ( sK14_C @ SV115 @ SV91 ) @ SV91 )
          | ~ ( in @ ( sK14_C @ SV115 @ SV91 ) @ SV115 ) )
        = $false )
      | ( ( disjoint @ SV91 @ SV115 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[553]) ).

thf(590,plain,
    ! [SV116: $i,SV92: $i,SV136: $i] :
      ( ( ( ~ ( in @ SV136 @ SV92 )
          | ~ ( in @ SV136 @ SV116 ) )
        = $true )
      | ( ( ~ ( disjoint @ SV92 @ SV116 ) )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[554]) ).

thf(591,plain,
    ! [SV117: $i,SV93: $i] :
      ( ( ( ( set_difference @ SV93 @ SV117 )
          = SV93 )
        = $false )
      | ( ( disjoint @ SV93 @ SV117 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[555]) ).

thf(592,plain,
    ! [SV118: $i,SV94: $i] :
      ( ( ( disjoint @ SV94 @ SV118 )
        = $false )
      | ( ( ( set_difference @ SV94 @ SV118 )
          = SV94 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[556]) ).

thf(593,plain,
    ! [SV43: $i,SV119: $i,SV128: $i] :
      ( ( ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK9_D @ SV128 @ SV119 @ SV43 ) @ SV128 )
                        | ~ ( in @ ( sK9_D @ SV128 @ SV119 @ SV43 ) @ SV43 ) )
                    | ~ ( ~ ( in @ ( sK9_D @ SV128 @ SV119 @ SV43 ) @ SV128 )
                        | ~ ( in @ ( sK9_D @ SV128 @ SV119 @ SV43 ) @ SV119 ) ) )
              | ~ ( ( in @ ( sK9_D @ SV128 @ SV119 @ SV43 ) @ SV128 )
                  | ( in @ ( sK9_D @ SV128 @ SV119 @ SV43 ) @ SV43 )
                  | ( in @ ( sK9_D @ SV128 @ SV119 @ SV43 ) @ SV119 ) ) ) )
        = $true )
      | ( ( SV128
          = ( set_union2 @ SV43 @ SV119 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[557]) ).

thf(594,plain,
    ! [SV120: $i,SV43: $i,SV129: $i] :
      ( ( ( ( SV129
           != ( set_union2 @ SV43 @ SV120 ) ) )
        = $true )
      | ( ( ~ ( ~ ! [SY249: $i] :
                    ( ~ ( in @ SY249 @ SV129 )
                    | ( in @ SY249 @ SV43 )
                    | ( in @ SY249 @ SV120 ) )
              | ~ ~ ( ~ ! [SY250: $i] :
                          ( ~ ( in @ SY250 @ SV43 )
                          | ( in @ SY250 @ SV129 ) )
                    | ~ ! [SY251: $i] :
                          ( ~ ( in @ SY251 @ SV120 )
                          | ( in @ SY251 @ SV129 ) ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[558]) ).

thf(595,plain,
    ! [SV121: $i,SV95: $i] :
      ( ( ( SV95 = SV121 )
        = $true )
      | ( ( ~ ( subset @ SV95 @ SV121 ) )
        = $true )
      | ( ( proper_subset @ SV95 @ SV121 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[559]) ).

thf(596,plain,
    ! [SV137: $i] :
      ( ( ! [SY257: $i] :
            ( ~ ( proper_subset @ SV137 @ SY257 )
            | ( SV137 != SY257 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[560]) ).

thf(597,plain,
    ! [SV138: $i] :
      ( ( ! [SY258: $i] :
            ( ~ ( proper_subset @ SV138 @ SY258 )
            | ( subset @ SV138 @ SY258 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[561]) ).

thf(598,plain,
    ! [SV44: $i,SV122: $i,SV130: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ ( sK6_D @ SV130 @ SV122 @ SV44 ) @ SV44 )
                  | ( in @ ( sK6_D @ SV130 @ SV122 @ SV44 ) @ SV122 )
                  | ~ ( in @ ( sK6_D @ SV130 @ SV122 @ SV44 ) @ SV130 ) )
              | ~ ~ ( ~ ( ( in @ ( sK6_D @ SV130 @ SV122 @ SV44 ) @ SV44 )
                        | ( in @ ( sK6_D @ SV130 @ SV122 @ SV44 ) @ SV130 ) )
                    | ~ ( ~ ( in @ ( sK6_D @ SV130 @ SV122 @ SV44 ) @ SV122 )
                        | ( in @ ( sK6_D @ SV130 @ SV122 @ SV44 ) @ SV130 ) ) ) ) )
        = $true )
      | ( ( SV130
          = ( set_difference @ SV44 @ SV122 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[562]) ).

thf(599,plain,
    ! [SV123: $i,SV44: $i,SV131: $i] :
      ( ( ( ( SV131
           != ( set_difference @ SV44 @ SV123 ) ) )
        = $true )
      | ( ( ~ ( ~ ! [SY252: $i] :
                    ( ~ ( in @ SY252 @ SV44 )
                    | ( in @ SY252 @ SV123 )
                    | ( in @ SY252 @ SV131 ) )
              | ~ ~ ( ~ ! [SY253: $i] :
                          ( ~ ( in @ SY253 @ SV131 )
                          | ( in @ SY253 @ SV44 ) )
                    | ~ ! [SY254: $i] :
                          ( ~ ( in @ SY254 @ SV131 )
                          | ~ ( in @ SY254 @ SV123 ) ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[563]) ).

thf(600,plain,
    ! [SV40: $i,SV98: $i,SV124: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK7_D @ SV124 @ SV98 @ SV40 ) @ SV40 )
              | ~ ( in @ ( sK7_D @ SV124 @ SV98 @ SV40 ) @ SV98 )
              | ~ ( in @ ( sK7_D @ SV124 @ SV98 @ SV40 ) @ SV124 ) )
          | ~ ~ ( ~ ( ( in @ ( sK7_D @ SV124 @ SV98 @ SV40 ) @ SV40 )
                    | ( in @ ( sK7_D @ SV124 @ SV98 @ SV40 ) @ SV124 ) )
                | ~ ( ( in @ ( sK7_D @ SV124 @ SV98 @ SV40 ) @ SV98 )
                    | ( in @ ( sK7_D @ SV124 @ SV98 @ SV40 ) @ SV124 ) ) ) )
        = $false )
      | ( ( SV124
          = ( set_intersection2 @ SV40 @ SV98 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[568]) ).

thf(601,plain,
    ! [SV99: $i,SV40: $i,SV125: $i] :
      ( ( ( SV125
          = ( set_intersection2 @ SV40 @ SV99 ) )
        = $false )
      | ( ( ~ ( ~ ! [SY243: $i] :
                    ( ~ ( in @ SY243 @ SV40 )
                    | ~ ( in @ SY243 @ SV99 )
                    | ( in @ SY243 @ SV125 ) )
              | ~ ~ ( ~ ! [SY244: $i] :
                          ( ~ ( in @ SY244 @ SV125 )
                          | ( in @ SY244 @ SV40 ) )
                    | ~ ! [SY245: $i] :
                          ( ~ ( in @ SY245 @ SV125 )
                          | ( in @ SY245 @ SV99 ) ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[569]) ).

thf(602,plain,
    ! [SV41: $i,SV69: $i] :
      ( ( ( in @ ( sK3_C @ SV69 @ SV41 ) @ SV41 )
        = $false )
      | ( ( ~ ( in @ ( sK3_C @ SV69 @ SV41 ) @ SV69 ) )
        = $true )
      | ( ( SV41 = SV69 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[570]) ).

thf(603,plain,
    ! [SV81: $i,SV132: $i] :
      ( ( ( in @ SV132 @ SV81 )
        = $false )
      | ( ( SV81 = empty_set )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[576]) ).

thf(604,plain,
    ! [SV82: $i,SV104: $i] :
      ( ( ( ~ ( in @ ( sK8_C @ SV104 @ SV82 ) @ SV82 ) )
        = $false )
      | ( ( subset @ SV82 @ SV104 )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[577]) ).

thf(605,plain,
    ! [SV82: $i,SV104: $i] :
      ( ( ( ~ ~ ( in @ ( sK8_C @ SV104 @ SV82 ) @ SV104 ) )
        = $false )
      | ( ( subset @ SV82 @ SV104 )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[577]) ).

thf(606,plain,
    ! [SV105: $i,SV83: $i,SV139: $i] :
      ( ( ( ~ ( in @ SV139 @ SV83 )
          | ( in @ SV139 @ SV105 ) )
        = $true )
      | ( ( subset @ SV83 @ SV105 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[578]) ).

thf(607,plain,
    ! [SV107: $i,SV85: $i,SV133: $i] :
      ( ( ( in @ SV133 @ ( set_intersection2 @ SV85 @ SV107 ) )
        = $false )
      | ( ( ~ ( disjoint @ SV85 @ SV107 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[579]) ).

thf(608,plain,
    ! [SV42: $i,SV108: $i,SV126: $i] :
      ( ( ( ~ ~ ( ~ ( ~ ( in @ ( sK10_D @ SV126 @ SV108 @ SV42 ) @ SV126 )
                    | ( ( sK10_D @ SV126 @ SV108 @ SV42 )
                     != SV42 ) )
                | ~ ( ~ ( in @ ( sK10_D @ SV126 @ SV108 @ SV42 ) @ SV126 )
                    | ( ( sK10_D @ SV126 @ SV108 @ SV42 )
                     != SV108 ) ) )
          | ~ ( ( in @ ( sK10_D @ SV126 @ SV108 @ SV42 ) @ SV126 )
              | ( ( sK10_D @ SV126 @ SV108 @ SV42 )
                = SV42 )
              | ( ( sK10_D @ SV126 @ SV108 @ SV42 )
                = SV108 ) ) )
        = $false )
      | ( ( SV126
          = ( unordered_pair @ SV42 @ SV108 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[580]) ).

thf(609,plain,
    ! [SV109: $i,SV42: $i,SV127: $i] :
      ( ( ( SV127
          = ( unordered_pair @ SV42 @ SV109 ) )
        = $false )
      | ( ( ~ ( ~ ! [SY246: $i] :
                    ( ~ ( in @ SY246 @ SV127 )
                    | ( SY246 = SV42 )
                    | ( SY246 = SV109 ) )
              | ~ ~ ( ~ ! [SY247: $i] :
                          ( ( SY247 != SV42 )
                          | ( in @ SY247 @ SV127 ) )
                    | ~ ! [SY248: $i] :
                          ( ( SY248 != SV109 )
                          | ( in @ SY248 @ SV127 ) ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[581]) ).

thf(610,plain,
    ! [SV112: $i,SV88: $i] :
      ( ( ( subset @ SV88 @ SV112 )
        = $false )
      | ( ( ~ ( subset @ SV112 @ SV88 ) )
        = $true )
      | ( ( SV88 = SV112 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[584]) ).

thf(611,plain,
    ! [SV140: $i,SV134: $i] :
      ( ( ( SV134 != SV140 )
        | ( subset @ SV134 @ SV140 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[585]) ).

thf(612,plain,
    ! [SV141: $i,SV135: $i] :
      ( ( ( SV135 != SV141 )
        | ( subset @ SV141 @ SV135 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[586]) ).

thf(613,plain,
    ! [SV89: $i,SV113: $i] :
      ( ( ( ~ ( ( ( sK12_C @ SV113 @ SV89 )
               != SV89 )
              | ~ ( in @ ( sK12_C @ SV113 @ SV89 ) @ SV113 ) ) )
        = $false )
      | ( ( SV113
          = ( singleton @ SV89 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[587]) ).

thf(614,plain,
    ! [SV89: $i,SV113: $i] :
      ( ( ( ~ ( ( ( sK12_C @ SV113 @ SV89 )
                = SV89 )
              | ( in @ ( sK12_C @ SV113 @ SV89 ) @ SV113 ) ) )
        = $false )
      | ( ( SV113
          = ( singleton @ SV89 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[587]) ).

thf(615,plain,
    ! [SV114: $i,SV90: $i] :
      ( ( ( ~ ! [SY230: $i] :
                ( ( SY230 != SV90 )
                | ( in @ SY230 @ SV114 ) )
          | ~ ! [SY231: $i] :
                ( ~ ( in @ SY231 @ SV114 )
                | ( SY231 = SV90 ) ) )
        = $false )
      | ( ( SV114
          = ( singleton @ SV90 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[588]) ).

thf(616,plain,
    ! [SV91: $i,SV115: $i] :
      ( ( ( ~ ( in @ ( sK14_C @ SV115 @ SV91 ) @ SV91 ) )
        = $false )
      | ( ( disjoint @ SV91 @ SV115 )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[589]) ).

thf(617,plain,
    ! [SV91: $i,SV115: $i] :
      ( ( ( ~ ( in @ ( sK14_C @ SV115 @ SV91 ) @ SV115 ) )
        = $false )
      | ( ( disjoint @ SV91 @ SV115 )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[589]) ).

thf(618,plain,
    ! [SV116: $i,SV92: $i,SV136: $i] :
      ( ( ( ~ ( in @ SV136 @ SV92 ) )
        = $true )
      | ( ( ~ ( in @ SV136 @ SV116 ) )
        = $true )
      | ( ( ~ ( disjoint @ SV92 @ SV116 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[590]) ).

thf(619,plain,
    ! [SV43: $i,SV119: $i,SV128: $i] :
      ( ( ( ~ ~ ( ~ ( ~ ( in @ ( sK9_D @ SV128 @ SV119 @ SV43 ) @ SV128 )
                    | ~ ( in @ ( sK9_D @ SV128 @ SV119 @ SV43 ) @ SV43 ) )
                | ~ ( ~ ( in @ ( sK9_D @ SV128 @ SV119 @ SV43 ) @ SV128 )
                    | ~ ( in @ ( sK9_D @ SV128 @ SV119 @ SV43 ) @ SV119 ) ) )
          | ~ ( ( in @ ( sK9_D @ SV128 @ SV119 @ SV43 ) @ SV128 )
              | ( in @ ( sK9_D @ SV128 @ SV119 @ SV43 ) @ SV43 )
              | ( in @ ( sK9_D @ SV128 @ SV119 @ SV43 ) @ SV119 ) ) )
        = $false )
      | ( ( SV128
          = ( set_union2 @ SV43 @ SV119 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[593]) ).

thf(620,plain,
    ! [SV120: $i,SV43: $i,SV129: $i] :
      ( ( ( SV129
          = ( set_union2 @ SV43 @ SV120 ) )
        = $false )
      | ( ( ~ ( ~ ! [SY249: $i] :
                    ( ~ ( in @ SY249 @ SV129 )
                    | ( in @ SY249 @ SV43 )
                    | ( in @ SY249 @ SV120 ) )
              | ~ ~ ( ~ ! [SY250: $i] :
                          ( ~ ( in @ SY250 @ SV43 )
                          | ( in @ SY250 @ SV129 ) )
                    | ~ ! [SY251: $i] :
                          ( ~ ( in @ SY251 @ SV120 )
                          | ( in @ SY251 @ SV129 ) ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[594]) ).

thf(621,plain,
    ! [SV121: $i,SV95: $i] :
      ( ( ( subset @ SV95 @ SV121 )
        = $false )
      | ( ( SV95 = SV121 )
        = $true )
      | ( ( proper_subset @ SV95 @ SV121 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[595]) ).

thf(622,plain,
    ! [SV142: $i,SV137: $i] :
      ( ( ~ ( proper_subset @ SV137 @ SV142 )
        | ( SV137 != SV142 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[596]) ).

thf(623,plain,
    ! [SV143: $i,SV138: $i] :
      ( ( ~ ( proper_subset @ SV138 @ SV143 )
        | ( subset @ SV138 @ SV143 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[597]) ).

thf(624,plain,
    ! [SV44: $i,SV122: $i,SV130: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK6_D @ SV130 @ SV122 @ SV44 ) @ SV44 )
              | ( in @ ( sK6_D @ SV130 @ SV122 @ SV44 ) @ SV122 )
              | ~ ( in @ ( sK6_D @ SV130 @ SV122 @ SV44 ) @ SV130 ) )
          | ~ ~ ( ~ ( ( in @ ( sK6_D @ SV130 @ SV122 @ SV44 ) @ SV44 )
                    | ( in @ ( sK6_D @ SV130 @ SV122 @ SV44 ) @ SV130 ) )
                | ~ ( ~ ( in @ ( sK6_D @ SV130 @ SV122 @ SV44 ) @ SV122 )
                    | ( in @ ( sK6_D @ SV130 @ SV122 @ SV44 ) @ SV130 ) ) ) )
        = $false )
      | ( ( SV130
          = ( set_difference @ SV44 @ SV122 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[598]) ).

thf(625,plain,
    ! [SV123: $i,SV44: $i,SV131: $i] :
      ( ( ( SV131
          = ( set_difference @ SV44 @ SV123 ) )
        = $false )
      | ( ( ~ ( ~ ! [SY252: $i] :
                    ( ~ ( in @ SY252 @ SV44 )
                    | ( in @ SY252 @ SV123 )
                    | ( in @ SY252 @ SV131 ) )
              | ~ ~ ( ~ ! [SY253: $i] :
                          ( ~ ( in @ SY253 @ SV131 )
                          | ( in @ SY253 @ SV44 ) )
                    | ~ ! [SY254: $i] :
                          ( ~ ( in @ SY254 @ SV131 )
                          | ~ ( in @ SY254 @ SV123 ) ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[599]) ).

thf(626,plain,
    ! [SV40: $i,SV98: $i,SV124: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK7_D @ SV124 @ SV98 @ SV40 ) @ SV40 )
              | ~ ( in @ ( sK7_D @ SV124 @ SV98 @ SV40 ) @ SV98 )
              | ~ ( in @ ( sK7_D @ SV124 @ SV98 @ SV40 ) @ SV124 ) ) )
        = $false )
      | ( ( SV124
          = ( set_intersection2 @ SV40 @ SV98 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[600]) ).

thf(627,plain,
    ! [SV40: $i,SV98: $i,SV124: $i] :
      ( ( ( ~ ~ ( ~ ( ( in @ ( sK7_D @ SV124 @ SV98 @ SV40 ) @ SV40 )
                    | ( in @ ( sK7_D @ SV124 @ SV98 @ SV40 ) @ SV124 ) )
                | ~ ( ( in @ ( sK7_D @ SV124 @ SV98 @ SV40 ) @ SV98 )
                    | ( in @ ( sK7_D @ SV124 @ SV98 @ SV40 ) @ SV124 ) ) ) )
        = $false )
      | ( ( SV124
          = ( set_intersection2 @ SV40 @ SV98 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[600]) ).

thf(628,plain,
    ! [SV125: $i,SV99: $i,SV40: $i] :
      ( ( ( ~ ! [SY243: $i] :
                ( ~ ( in @ SY243 @ SV40 )
                | ~ ( in @ SY243 @ SV99 )
                | ( in @ SY243 @ SV125 ) )
          | ~ ~ ( ~ ! [SY244: $i] :
                      ( ~ ( in @ SY244 @ SV125 )
                      | ( in @ SY244 @ SV40 ) )
                | ~ ! [SY245: $i] :
                      ( ~ ( in @ SY245 @ SV125 )
                      | ( in @ SY245 @ SV99 ) ) ) )
        = $false )
      | ( ( SV125
          = ( set_intersection2 @ SV40 @ SV99 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[601]) ).

thf(629,plain,
    ! [SV41: $i,SV69: $i] :
      ( ( ( in @ ( sK3_C @ SV69 @ SV41 ) @ SV69 )
        = $false )
      | ( ( in @ ( sK3_C @ SV69 @ SV41 ) @ SV41 )
        = $false )
      | ( ( SV41 = SV69 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[602]) ).

thf(630,plain,
    ! [SV82: $i,SV104: $i] :
      ( ( ( in @ ( sK8_C @ SV104 @ SV82 ) @ SV82 )
        = $true )
      | ( ( subset @ SV82 @ SV104 )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[604]) ).

thf(631,plain,
    ! [SV82: $i,SV104: $i] :
      ( ( ( ~ ( in @ ( sK8_C @ SV104 @ SV82 ) @ SV104 ) )
        = $true )
      | ( ( subset @ SV82 @ SV104 )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[605]) ).

thf(632,plain,
    ! [SV105: $i,SV83: $i,SV139: $i] :
      ( ( ( ~ ( in @ SV139 @ SV83 ) )
        = $true )
      | ( ( in @ SV139 @ SV105 )
        = $true )
      | ( ( subset @ SV83 @ SV105 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[606]) ).

thf(633,plain,
    ! [SV133: $i,SV107: $i,SV85: $i] :
      ( ( ( disjoint @ SV85 @ SV107 )
        = $false )
      | ( ( in @ SV133 @ ( set_intersection2 @ SV85 @ SV107 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[607]) ).

thf(634,plain,
    ! [SV42: $i,SV108: $i,SV126: $i] :
      ( ( ( ~ ~ ( ~ ( ~ ( in @ ( sK10_D @ SV126 @ SV108 @ SV42 ) @ SV126 )
                    | ( ( sK10_D @ SV126 @ SV108 @ SV42 )
                     != SV42 ) )
                | ~ ( ~ ( in @ ( sK10_D @ SV126 @ SV108 @ SV42 ) @ SV126 )
                    | ( ( sK10_D @ SV126 @ SV108 @ SV42 )
                     != SV108 ) ) ) )
        = $false )
      | ( ( SV126
          = ( unordered_pair @ SV42 @ SV108 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[608]) ).

thf(635,plain,
    ! [SV42: $i,SV108: $i,SV126: $i] :
      ( ( ( ~ ( ( in @ ( sK10_D @ SV126 @ SV108 @ SV42 ) @ SV126 )
              | ( ( sK10_D @ SV126 @ SV108 @ SV42 )
                = SV42 )
              | ( ( sK10_D @ SV126 @ SV108 @ SV42 )
                = SV108 ) ) )
        = $false )
      | ( ( SV126
          = ( unordered_pair @ SV42 @ SV108 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[608]) ).

thf(636,plain,
    ! [SV109: $i,SV42: $i,SV127: $i] :
      ( ( ( ~ ! [SY246: $i] :
                ( ~ ( in @ SY246 @ SV127 )
                | ( SY246 = SV42 )
                | ( SY246 = SV109 ) )
          | ~ ~ ( ~ ! [SY247: $i] :
                      ( ( SY247 != SV42 )
                      | ( in @ SY247 @ SV127 ) )
                | ~ ! [SY248: $i] :
                      ( ( SY248 != SV109 )
                      | ( in @ SY248 @ SV127 ) ) ) )
        = $false )
      | ( ( SV127
          = ( unordered_pair @ SV42 @ SV109 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[609]) ).

thf(637,plain,
    ! [SV88: $i,SV112: $i] :
      ( ( ( subset @ SV112 @ SV88 )
        = $false )
      | ( ( subset @ SV88 @ SV112 )
        = $false )
      | ( ( SV88 = SV112 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[610]) ).

thf(638,plain,
    ! [SV140: $i,SV134: $i] :
      ( ( ( ( SV134 != SV140 ) )
        = $true )
      | ( ( subset @ SV134 @ SV140 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[611]) ).

thf(639,plain,
    ! [SV141: $i,SV135: $i] :
      ( ( ( ( SV135 != SV141 ) )
        = $true )
      | ( ( subset @ SV141 @ SV135 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[612]) ).

thf(640,plain,
    ! [SV89: $i,SV113: $i] :
      ( ( ( ( ( sK12_C @ SV113 @ SV89 )
           != SV89 )
          | ~ ( in @ ( sK12_C @ SV113 @ SV89 ) @ SV113 ) )
        = $true )
      | ( ( SV113
          = ( singleton @ SV89 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[613]) ).

thf(641,plain,
    ! [SV89: $i,SV113: $i] :
      ( ( ( ( ( sK12_C @ SV113 @ SV89 )
            = SV89 )
          | ( in @ ( sK12_C @ SV113 @ SV89 ) @ SV113 ) )
        = $true )
      | ( ( SV113
          = ( singleton @ SV89 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[614]) ).

thf(642,plain,
    ! [SV114: $i,SV90: $i] :
      ( ( ( ~ ! [SY230: $i] :
                ( ( SY230 != SV90 )
                | ( in @ SY230 @ SV114 ) ) )
        = $false )
      | ( ( SV114
          = ( singleton @ SV90 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[615]) ).

thf(643,plain,
    ! [SV90: $i,SV114: $i] :
      ( ( ( ~ ! [SY231: $i] :
                ( ~ ( in @ SY231 @ SV114 )
                | ( SY231 = SV90 ) ) )
        = $false )
      | ( ( SV114
          = ( singleton @ SV90 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[615]) ).

thf(644,plain,
    ! [SV91: $i,SV115: $i] :
      ( ( ( in @ ( sK14_C @ SV115 @ SV91 ) @ SV91 )
        = $true )
      | ( ( disjoint @ SV91 @ SV115 )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[616]) ).

thf(645,plain,
    ! [SV91: $i,SV115: $i] :
      ( ( ( in @ ( sK14_C @ SV115 @ SV91 ) @ SV115 )
        = $true )
      | ( ( disjoint @ SV91 @ SV115 )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[617]) ).

thf(646,plain,
    ! [SV116: $i,SV92: $i,SV136: $i] :
      ( ( ( in @ SV136 @ SV92 )
        = $false )
      | ( ( ~ ( in @ SV136 @ SV116 ) )
        = $true )
      | ( ( ~ ( disjoint @ SV92 @ SV116 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[618]) ).

thf(647,plain,
    ! [SV43: $i,SV119: $i,SV128: $i] :
      ( ( ( ~ ~ ( ~ ( ~ ( in @ ( sK9_D @ SV128 @ SV119 @ SV43 ) @ SV128 )
                    | ~ ( in @ ( sK9_D @ SV128 @ SV119 @ SV43 ) @ SV43 ) )
                | ~ ( ~ ( in @ ( sK9_D @ SV128 @ SV119 @ SV43 ) @ SV128 )
                    | ~ ( in @ ( sK9_D @ SV128 @ SV119 @ SV43 ) @ SV119 ) ) ) )
        = $false )
      | ( ( SV128
          = ( set_union2 @ SV43 @ SV119 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[619]) ).

thf(648,plain,
    ! [SV43: $i,SV119: $i,SV128: $i] :
      ( ( ( ~ ( ( in @ ( sK9_D @ SV128 @ SV119 @ SV43 ) @ SV128 )
              | ( in @ ( sK9_D @ SV128 @ SV119 @ SV43 ) @ SV43 )
              | ( in @ ( sK9_D @ SV128 @ SV119 @ SV43 ) @ SV119 ) ) )
        = $false )
      | ( ( SV128
          = ( set_union2 @ SV43 @ SV119 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[619]) ).

thf(649,plain,
    ! [SV120: $i,SV43: $i,SV129: $i] :
      ( ( ( ~ ! [SY249: $i] :
                ( ~ ( in @ SY249 @ SV129 )
                | ( in @ SY249 @ SV43 )
                | ( in @ SY249 @ SV120 ) )
          | ~ ~ ( ~ ! [SY250: $i] :
                      ( ~ ( in @ SY250 @ SV43 )
                      | ( in @ SY250 @ SV129 ) )
                | ~ ! [SY251: $i] :
                      ( ~ ( in @ SY251 @ SV120 )
                      | ( in @ SY251 @ SV129 ) ) ) )
        = $false )
      | ( ( SV129
          = ( set_union2 @ SV43 @ SV120 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[620]) ).

thf(650,plain,
    ! [SV142: $i,SV137: $i] :
      ( ( ( ~ ( proper_subset @ SV137 @ SV142 ) )
        = $true )
      | ( ( ( SV137 != SV142 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[622]) ).

thf(651,plain,
    ! [SV143: $i,SV138: $i] :
      ( ( ( ~ ( proper_subset @ SV138 @ SV143 ) )
        = $true )
      | ( ( subset @ SV138 @ SV143 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[623]) ).

thf(652,plain,
    ! [SV44: $i,SV122: $i,SV130: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK6_D @ SV130 @ SV122 @ SV44 ) @ SV44 )
              | ( in @ ( sK6_D @ SV130 @ SV122 @ SV44 ) @ SV122 )
              | ~ ( in @ ( sK6_D @ SV130 @ SV122 @ SV44 ) @ SV130 ) ) )
        = $false )
      | ( ( SV130
          = ( set_difference @ SV44 @ SV122 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[624]) ).

thf(653,plain,
    ! [SV44: $i,SV122: $i,SV130: $i] :
      ( ( ( ~ ~ ( ~ ( ( in @ ( sK6_D @ SV130 @ SV122 @ SV44 ) @ SV44 )
                    | ( in @ ( sK6_D @ SV130 @ SV122 @ SV44 ) @ SV130 ) )
                | ~ ( ~ ( in @ ( sK6_D @ SV130 @ SV122 @ SV44 ) @ SV122 )
                    | ( in @ ( sK6_D @ SV130 @ SV122 @ SV44 ) @ SV130 ) ) ) )
        = $false )
      | ( ( SV130
          = ( set_difference @ SV44 @ SV122 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[624]) ).

thf(654,plain,
    ! [SV131: $i,SV123: $i,SV44: $i] :
      ( ( ( ~ ! [SY252: $i] :
                ( ~ ( in @ SY252 @ SV44 )
                | ( in @ SY252 @ SV123 )
                | ( in @ SY252 @ SV131 ) )
          | ~ ~ ( ~ ! [SY253: $i] :
                      ( ~ ( in @ SY253 @ SV131 )
                      | ( in @ SY253 @ SV44 ) )
                | ~ ! [SY254: $i] :
                      ( ~ ( in @ SY254 @ SV131 )
                      | ~ ( in @ SY254 @ SV123 ) ) ) )
        = $false )
      | ( ( SV131
          = ( set_difference @ SV44 @ SV123 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[625]) ).

thf(655,plain,
    ! [SV40: $i,SV98: $i,SV124: $i] :
      ( ( ( ~ ( in @ ( sK7_D @ SV124 @ SV98 @ SV40 ) @ SV40 )
          | ~ ( in @ ( sK7_D @ SV124 @ SV98 @ SV40 ) @ SV98 )
          | ~ ( in @ ( sK7_D @ SV124 @ SV98 @ SV40 ) @ SV124 ) )
        = $true )
      | ( ( SV124
          = ( set_intersection2 @ SV40 @ SV98 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[626]) ).

thf(656,plain,
    ! [SV40: $i,SV98: $i,SV124: $i] :
      ( ( ( ~ ( ~ ( ( in @ ( sK7_D @ SV124 @ SV98 @ SV40 ) @ SV40 )
                  | ( in @ ( sK7_D @ SV124 @ SV98 @ SV40 ) @ SV124 ) )
              | ~ ( ( in @ ( sK7_D @ SV124 @ SV98 @ SV40 ) @ SV98 )
                  | ( in @ ( sK7_D @ SV124 @ SV98 @ SV40 ) @ SV124 ) ) ) )
        = $true )
      | ( ( SV124
          = ( set_intersection2 @ SV40 @ SV98 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[627]) ).

thf(657,plain,
    ! [SV125: $i,SV99: $i,SV40: $i] :
      ( ( ( ~ ! [SY243: $i] :
                ( ~ ( in @ SY243 @ SV40 )
                | ~ ( in @ SY243 @ SV99 )
                | ( in @ SY243 @ SV125 ) ) )
        = $false )
      | ( ( SV125
          = ( set_intersection2 @ SV40 @ SV99 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[628]) ).

thf(658,plain,
    ! [SV99: $i,SV40: $i,SV125: $i] :
      ( ( ( ~ ~ ( ~ ! [SY244: $i] :
                      ( ~ ( in @ SY244 @ SV125 )
                      | ( in @ SY244 @ SV40 ) )
                | ~ ! [SY245: $i] :
                      ( ~ ( in @ SY245 @ SV125 )
                      | ( in @ SY245 @ SV99 ) ) ) )
        = $false )
      | ( ( SV125
          = ( set_intersection2 @ SV40 @ SV99 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[628]) ).

thf(659,plain,
    ! [SV82: $i,SV104: $i] :
      ( ( ( in @ ( sK8_C @ SV104 @ SV82 ) @ SV104 )
        = $false )
      | ( ( subset @ SV82 @ SV104 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[631]) ).

thf(660,plain,
    ! [SV105: $i,SV83: $i,SV139: $i] :
      ( ( ( in @ SV139 @ SV83 )
        = $false )
      | ( ( in @ SV139 @ SV105 )
        = $true )
      | ( ( subset @ SV83 @ SV105 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[632]) ).

thf(661,plain,
    ! [SV42: $i,SV108: $i,SV126: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ ( sK10_D @ SV126 @ SV108 @ SV42 ) @ SV126 )
                  | ( ( sK10_D @ SV126 @ SV108 @ SV42 )
                   != SV42 ) )
              | ~ ( ~ ( in @ ( sK10_D @ SV126 @ SV108 @ SV42 ) @ SV126 )
                  | ( ( sK10_D @ SV126 @ SV108 @ SV42 )
                   != SV108 ) ) ) )
        = $true )
      | ( ( SV126
          = ( unordered_pair @ SV42 @ SV108 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[634]) ).

thf(662,plain,
    ! [SV42: $i,SV108: $i,SV126: $i] :
      ( ( ( ( in @ ( sK10_D @ SV126 @ SV108 @ SV42 ) @ SV126 )
          | ( ( sK10_D @ SV126 @ SV108 @ SV42 )
            = SV42 )
          | ( ( sK10_D @ SV126 @ SV108 @ SV42 )
            = SV108 ) )
        = $true )
      | ( ( SV126
          = ( unordered_pair @ SV42 @ SV108 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[635]) ).

thf(663,plain,
    ! [SV109: $i,SV42: $i,SV127: $i] :
      ( ( ( ~ ! [SY246: $i] :
                ( ~ ( in @ SY246 @ SV127 )
                | ( SY246 = SV42 )
                | ( SY246 = SV109 ) ) )
        = $false )
      | ( ( SV127
          = ( unordered_pair @ SV42 @ SV109 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[636]) ).

thf(664,plain,
    ! [SV109: $i,SV127: $i,SV42: $i] :
      ( ( ( ~ ~ ( ~ ! [SY247: $i] :
                      ( ( SY247 != SV42 )
                      | ( in @ SY247 @ SV127 ) )
                | ~ ! [SY248: $i] :
                      ( ( SY248 != SV109 )
                      | ( in @ SY248 @ SV127 ) ) ) )
        = $false )
      | ( ( SV127
          = ( unordered_pair @ SV42 @ SV109 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[636]) ).

thf(665,plain,
    ! [SV140: $i,SV134: $i] :
      ( ( ( SV134 = SV140 )
        = $false )
      | ( ( subset @ SV134 @ SV140 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[638]) ).

thf(666,plain,
    ! [SV141: $i,SV135: $i] :
      ( ( ( SV135 = SV141 )
        = $false )
      | ( ( subset @ SV141 @ SV135 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[639]) ).

thf(667,plain,
    ! [SV89: $i,SV113: $i] :
      ( ( ( ( ( sK12_C @ SV113 @ SV89 )
           != SV89 ) )
        = $true )
      | ( ( ~ ( in @ ( sK12_C @ SV113 @ SV89 ) @ SV113 ) )
        = $true )
      | ( ( SV113
          = ( singleton @ SV89 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[640]) ).

thf(668,plain,
    ! [SV89: $i,SV113: $i] :
      ( ( ( ( sK12_C @ SV113 @ SV89 )
          = SV89 )
        = $true )
      | ( ( in @ ( sK12_C @ SV113 @ SV89 ) @ SV113 )
        = $true )
      | ( ( SV113
          = ( singleton @ SV89 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[641]) ).

thf(669,plain,
    ! [SV114: $i,SV90: $i] :
      ( ( ( ! [SY230: $i] :
              ( ( SY230 != SV90 )
              | ( in @ SY230 @ SV114 ) ) )
        = $true )
      | ( ( SV114
          = ( singleton @ SV90 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[642]) ).

thf(670,plain,
    ! [SV90: $i,SV114: $i] :
      ( ( ( ! [SY231: $i] :
              ( ~ ( in @ SY231 @ SV114 )
              | ( SY231 = SV90 ) ) )
        = $true )
      | ( ( SV114
          = ( singleton @ SV90 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[643]) ).

thf(671,plain,
    ! [SV92: $i,SV116: $i,SV136: $i] :
      ( ( ( in @ SV136 @ SV116 )
        = $false )
      | ( ( in @ SV136 @ SV92 )
        = $false )
      | ( ( ~ ( disjoint @ SV92 @ SV116 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[646]) ).

thf(672,plain,
    ! [SV43: $i,SV119: $i,SV128: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ ( sK9_D @ SV128 @ SV119 @ SV43 ) @ SV128 )
                  | ~ ( in @ ( sK9_D @ SV128 @ SV119 @ SV43 ) @ SV43 ) )
              | ~ ( ~ ( in @ ( sK9_D @ SV128 @ SV119 @ SV43 ) @ SV128 )
                  | ~ ( in @ ( sK9_D @ SV128 @ SV119 @ SV43 ) @ SV119 ) ) ) )
        = $true )
      | ( ( SV128
          = ( set_union2 @ SV43 @ SV119 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[647]) ).

thf(673,plain,
    ! [SV43: $i,SV119: $i,SV128: $i] :
      ( ( ( ( in @ ( sK9_D @ SV128 @ SV119 @ SV43 ) @ SV128 )
          | ( in @ ( sK9_D @ SV128 @ SV119 @ SV43 ) @ SV43 )
          | ( in @ ( sK9_D @ SV128 @ SV119 @ SV43 ) @ SV119 ) )
        = $true )
      | ( ( SV128
          = ( set_union2 @ SV43 @ SV119 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[648]) ).

thf(674,plain,
    ! [SV120: $i,SV43: $i,SV129: $i] :
      ( ( ( ~ ! [SY249: $i] :
                ( ~ ( in @ SY249 @ SV129 )
                | ( in @ SY249 @ SV43 )
                | ( in @ SY249 @ SV120 ) ) )
        = $false )
      | ( ( SV129
          = ( set_union2 @ SV43 @ SV120 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[649]) ).

thf(675,plain,
    ! [SV120: $i,SV129: $i,SV43: $i] :
      ( ( ( ~ ~ ( ~ ! [SY250: $i] :
                      ( ~ ( in @ SY250 @ SV43 )
                      | ( in @ SY250 @ SV129 ) )
                | ~ ! [SY251: $i] :
                      ( ~ ( in @ SY251 @ SV120 )
                      | ( in @ SY251 @ SV129 ) ) ) )
        = $false )
      | ( ( SV129
          = ( set_union2 @ SV43 @ SV120 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[649]) ).

thf(676,plain,
    ! [SV142: $i,SV137: $i] :
      ( ( ( proper_subset @ SV137 @ SV142 )
        = $false )
      | ( ( ( SV137 != SV142 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[650]) ).

thf(677,plain,
    ! [SV143: $i,SV138: $i] :
      ( ( ( proper_subset @ SV138 @ SV143 )
        = $false )
      | ( ( subset @ SV138 @ SV143 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[651]) ).

thf(678,plain,
    ! [SV44: $i,SV122: $i,SV130: $i] :
      ( ( ( ~ ( in @ ( sK6_D @ SV130 @ SV122 @ SV44 ) @ SV44 )
          | ( in @ ( sK6_D @ SV130 @ SV122 @ SV44 ) @ SV122 )
          | ~ ( in @ ( sK6_D @ SV130 @ SV122 @ SV44 ) @ SV130 ) )
        = $true )
      | ( ( SV130
          = ( set_difference @ SV44 @ SV122 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[652]) ).

thf(679,plain,
    ! [SV44: $i,SV122: $i,SV130: $i] :
      ( ( ( ~ ( ~ ( ( in @ ( sK6_D @ SV130 @ SV122 @ SV44 ) @ SV44 )
                  | ( in @ ( sK6_D @ SV130 @ SV122 @ SV44 ) @ SV130 ) )
              | ~ ( ~ ( in @ ( sK6_D @ SV130 @ SV122 @ SV44 ) @ SV122 )
                  | ( in @ ( sK6_D @ SV130 @ SV122 @ SV44 ) @ SV130 ) ) ) )
        = $true )
      | ( ( SV130
          = ( set_difference @ SV44 @ SV122 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[653]) ).

thf(680,plain,
    ! [SV131: $i,SV123: $i,SV44: $i] :
      ( ( ( ~ ! [SY252: $i] :
                ( ~ ( in @ SY252 @ SV44 )
                | ( in @ SY252 @ SV123 )
                | ( in @ SY252 @ SV131 ) ) )
        = $false )
      | ( ( SV131
          = ( set_difference @ SV44 @ SV123 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[654]) ).

thf(681,plain,
    ! [SV123: $i,SV44: $i,SV131: $i] :
      ( ( ( ~ ~ ( ~ ! [SY253: $i] :
                      ( ~ ( in @ SY253 @ SV131 )
                      | ( in @ SY253 @ SV44 ) )
                | ~ ! [SY254: $i] :
                      ( ~ ( in @ SY254 @ SV131 )
                      | ~ ( in @ SY254 @ SV123 ) ) ) )
        = $false )
      | ( ( SV131
          = ( set_difference @ SV44 @ SV123 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[654]) ).

thf(682,plain,
    ! [SV40: $i,SV98: $i,SV124: $i] :
      ( ( ( ~ ( in @ ( sK7_D @ SV124 @ SV98 @ SV40 ) @ SV40 )
          | ~ ( in @ ( sK7_D @ SV124 @ SV98 @ SV40 ) @ SV98 ) )
        = $true )
      | ( ( ~ ( in @ ( sK7_D @ SV124 @ SV98 @ SV40 ) @ SV124 ) )
        = $true )
      | ( ( SV124
          = ( set_intersection2 @ SV40 @ SV98 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[655]) ).

thf(683,plain,
    ! [SV40: $i,SV98: $i,SV124: $i] :
      ( ( ( ~ ( ( in @ ( sK7_D @ SV124 @ SV98 @ SV40 ) @ SV40 )
              | ( in @ ( sK7_D @ SV124 @ SV98 @ SV40 ) @ SV124 ) )
          | ~ ( ( in @ ( sK7_D @ SV124 @ SV98 @ SV40 ) @ SV98 )
              | ( in @ ( sK7_D @ SV124 @ SV98 @ SV40 ) @ SV124 ) ) )
        = $false )
      | ( ( SV124
          = ( set_intersection2 @ SV40 @ SV98 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[656]) ).

thf(684,plain,
    ! [SV125: $i,SV99: $i,SV40: $i] :
      ( ( ( ! [SY243: $i] :
              ( ~ ( in @ SY243 @ SV40 )
              | ~ ( in @ SY243 @ SV99 )
              | ( in @ SY243 @ SV125 ) ) )
        = $true )
      | ( ( SV125
          = ( set_intersection2 @ SV40 @ SV99 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[657]) ).

thf(685,plain,
    ! [SV99: $i,SV40: $i,SV125: $i] :
      ( ( ( ~ ( ~ ! [SY244: $i] :
                    ( ~ ( in @ SY244 @ SV125 )
                    | ( in @ SY244 @ SV40 ) )
              | ~ ! [SY245: $i] :
                    ( ~ ( in @ SY245 @ SV125 )
                    | ( in @ SY245 @ SV99 ) ) ) )
        = $true )
      | ( ( SV125
          = ( set_intersection2 @ SV40 @ SV99 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[658]) ).

thf(686,plain,
    ! [SV42: $i,SV108: $i,SV126: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK10_D @ SV126 @ SV108 @ SV42 ) @ SV126 )
              | ( ( sK10_D @ SV126 @ SV108 @ SV42 )
               != SV42 ) )
          | ~ ( ~ ( in @ ( sK10_D @ SV126 @ SV108 @ SV42 ) @ SV126 )
              | ( ( sK10_D @ SV126 @ SV108 @ SV42 )
               != SV108 ) ) )
        = $false )
      | ( ( SV126
          = ( unordered_pair @ SV42 @ SV108 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[661]) ).

thf(687,plain,
    ! [SV42: $i,SV108: $i,SV126: $i] :
      ( ( ( in @ ( sK10_D @ SV126 @ SV108 @ SV42 ) @ SV126 )
        = $true )
      | ( ( ( ( sK10_D @ SV126 @ SV108 @ SV42 )
            = SV42 )
          | ( ( sK10_D @ SV126 @ SV108 @ SV42 )
            = SV108 ) )
        = $true )
      | ( ( SV126
          = ( unordered_pair @ SV42 @ SV108 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[662]) ).

thf(688,plain,
    ! [SV109: $i,SV42: $i,SV127: $i] :
      ( ( ( ! [SY246: $i] :
              ( ~ ( in @ SY246 @ SV127 )
              | ( SY246 = SV42 )
              | ( SY246 = SV109 ) ) )
        = $true )
      | ( ( SV127
          = ( unordered_pair @ SV42 @ SV109 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[663]) ).

thf(689,plain,
    ! [SV109: $i,SV127: $i,SV42: $i] :
      ( ( ( ~ ( ~ ! [SY247: $i] :
                    ( ( SY247 != SV42 )
                    | ( in @ SY247 @ SV127 ) )
              | ~ ! [SY248: $i] :
                    ( ( SY248 != SV109 )
                    | ( in @ SY248 @ SV127 ) ) ) )
        = $true )
      | ( ( SV127
          = ( unordered_pair @ SV42 @ SV109 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[664]) ).

thf(690,plain,
    ! [SV89: $i,SV113: $i] :
      ( ( ( ( sK12_C @ SV113 @ SV89 )
          = SV89 )
        = $false )
      | ( ( ~ ( in @ ( sK12_C @ SV113 @ SV89 ) @ SV113 ) )
        = $true )
      | ( ( SV113
          = ( singleton @ SV89 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[667]) ).

thf(691,plain,
    ! [SV114: $i,SV90: $i,SV144: $i] :
      ( ( ( ( SV144 != SV90 )
          | ( in @ SV144 @ SV114 ) )
        = $true )
      | ( ( SV114
          = ( singleton @ SV90 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[669]) ).

thf(692,plain,
    ! [SV90: $i,SV114: $i,SV145: $i] :
      ( ( ( ~ ( in @ SV145 @ SV114 )
          | ( SV145 = SV90 ) )
        = $true )
      | ( ( SV114
          = ( singleton @ SV90 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[670]) ).

thf(693,plain,
    ! [SV136: $i,SV116: $i,SV92: $i] :
      ( ( ( disjoint @ SV92 @ SV116 )
        = $false )
      | ( ( in @ SV136 @ SV92 )
        = $false )
      | ( ( in @ SV136 @ SV116 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[671]) ).

thf(694,plain,
    ! [SV43: $i,SV119: $i,SV128: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK9_D @ SV128 @ SV119 @ SV43 ) @ SV128 )
              | ~ ( in @ ( sK9_D @ SV128 @ SV119 @ SV43 ) @ SV43 ) )
          | ~ ( ~ ( in @ ( sK9_D @ SV128 @ SV119 @ SV43 ) @ SV128 )
              | ~ ( in @ ( sK9_D @ SV128 @ SV119 @ SV43 ) @ SV119 ) ) )
        = $false )
      | ( ( SV128
          = ( set_union2 @ SV43 @ SV119 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[672]) ).

thf(695,plain,
    ! [SV43: $i,SV119: $i,SV128: $i] :
      ( ( ( in @ ( sK9_D @ SV128 @ SV119 @ SV43 ) @ SV128 )
        = $true )
      | ( ( ( in @ ( sK9_D @ SV128 @ SV119 @ SV43 ) @ SV43 )
          | ( in @ ( sK9_D @ SV128 @ SV119 @ SV43 ) @ SV119 ) )
        = $true )
      | ( ( SV128
          = ( set_union2 @ SV43 @ SV119 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[673]) ).

thf(696,plain,
    ! [SV120: $i,SV43: $i,SV129: $i] :
      ( ( ( ! [SY249: $i] :
              ( ~ ( in @ SY249 @ SV129 )
              | ( in @ SY249 @ SV43 )
              | ( in @ SY249 @ SV120 ) ) )
        = $true )
      | ( ( SV129
          = ( set_union2 @ SV43 @ SV120 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[674]) ).

thf(697,plain,
    ! [SV120: $i,SV129: $i,SV43: $i] :
      ( ( ( ~ ( ~ ! [SY250: $i] :
                    ( ~ ( in @ SY250 @ SV43 )
                    | ( in @ SY250 @ SV129 ) )
              | ~ ! [SY251: $i] :
                    ( ~ ( in @ SY251 @ SV120 )
                    | ( in @ SY251 @ SV129 ) ) ) )
        = $true )
      | ( ( SV129
          = ( set_union2 @ SV43 @ SV120 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[675]) ).

thf(698,plain,
    ! [SV142: $i,SV137: $i] :
      ( ( ( SV137 = SV142 )
        = $false )
      | ( ( proper_subset @ SV137 @ SV142 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[676]) ).

thf(699,plain,
    ! [SV44: $i,SV122: $i,SV130: $i] :
      ( ( ( ~ ( in @ ( sK6_D @ SV130 @ SV122 @ SV44 ) @ SV44 )
          | ( in @ ( sK6_D @ SV130 @ SV122 @ SV44 ) @ SV122 ) )
        = $true )
      | ( ( ~ ( in @ ( sK6_D @ SV130 @ SV122 @ SV44 ) @ SV130 ) )
        = $true )
      | ( ( SV130
          = ( set_difference @ SV44 @ SV122 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[678]) ).

thf(700,plain,
    ! [SV44: $i,SV122: $i,SV130: $i] :
      ( ( ( ~ ( ( in @ ( sK6_D @ SV130 @ SV122 @ SV44 ) @ SV44 )
              | ( in @ ( sK6_D @ SV130 @ SV122 @ SV44 ) @ SV130 ) )
          | ~ ( ~ ( in @ ( sK6_D @ SV130 @ SV122 @ SV44 ) @ SV122 )
              | ( in @ ( sK6_D @ SV130 @ SV122 @ SV44 ) @ SV130 ) ) )
        = $false )
      | ( ( SV130
          = ( set_difference @ SV44 @ SV122 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[679]) ).

thf(701,plain,
    ! [SV131: $i,SV123: $i,SV44: $i] :
      ( ( ( ! [SY252: $i] :
              ( ~ ( in @ SY252 @ SV44 )
              | ( in @ SY252 @ SV123 )
              | ( in @ SY252 @ SV131 ) ) )
        = $true )
      | ( ( SV131
          = ( set_difference @ SV44 @ SV123 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[680]) ).

thf(702,plain,
    ! [SV123: $i,SV44: $i,SV131: $i] :
      ( ( ( ~ ( ~ ! [SY253: $i] :
                    ( ~ ( in @ SY253 @ SV131 )
                    | ( in @ SY253 @ SV44 ) )
              | ~ ! [SY254: $i] :
                    ( ~ ( in @ SY254 @ SV131 )
                    | ~ ( in @ SY254 @ SV123 ) ) ) )
        = $true )
      | ( ( SV131
          = ( set_difference @ SV44 @ SV123 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[681]) ).

thf(703,plain,
    ! [SV40: $i,SV98: $i,SV124: $i] :
      ( ( ( ~ ( in @ ( sK7_D @ SV124 @ SV98 @ SV40 ) @ SV40 ) )
        = $true )
      | ( ( ~ ( in @ ( sK7_D @ SV124 @ SV98 @ SV40 ) @ SV98 ) )
        = $true )
      | ( ( ~ ( in @ ( sK7_D @ SV124 @ SV98 @ SV40 ) @ SV124 ) )
        = $true )
      | ( ( SV124
          = ( set_intersection2 @ SV40 @ SV98 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[682]) ).

thf(704,plain,
    ! [SV40: $i,SV98: $i,SV124: $i] :
      ( ( ( ~ ( ( in @ ( sK7_D @ SV124 @ SV98 @ SV40 ) @ SV40 )
              | ( in @ ( sK7_D @ SV124 @ SV98 @ SV40 ) @ SV124 ) ) )
        = $false )
      | ( ( SV124
          = ( set_intersection2 @ SV40 @ SV98 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[683]) ).

thf(705,plain,
    ! [SV40: $i,SV98: $i,SV124: $i] :
      ( ( ( ~ ( ( in @ ( sK7_D @ SV124 @ SV98 @ SV40 ) @ SV98 )
              | ( in @ ( sK7_D @ SV124 @ SV98 @ SV40 ) @ SV124 ) ) )
        = $false )
      | ( ( SV124
          = ( set_intersection2 @ SV40 @ SV98 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[683]) ).

thf(706,plain,
    ! [SV125: $i,SV99: $i,SV40: $i,SV146: $i] :
      ( ( ( ~ ( in @ SV146 @ SV40 )
          | ~ ( in @ SV146 @ SV99 )
          | ( in @ SV146 @ SV125 ) )
        = $true )
      | ( ( SV125
          = ( set_intersection2 @ SV40 @ SV99 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[684]) ).

thf(707,plain,
    ! [SV99: $i,SV40: $i,SV125: $i] :
      ( ( ( ~ ! [SY244: $i] :
                ( ~ ( in @ SY244 @ SV125 )
                | ( in @ SY244 @ SV40 ) )
          | ~ ! [SY245: $i] :
                ( ~ ( in @ SY245 @ SV125 )
                | ( in @ SY245 @ SV99 ) ) )
        = $false )
      | ( ( SV125
          = ( set_intersection2 @ SV40 @ SV99 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[685]) ).

thf(708,plain,
    ! [SV42: $i,SV108: $i,SV126: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK10_D @ SV126 @ SV108 @ SV42 ) @ SV126 )
              | ( ( sK10_D @ SV126 @ SV108 @ SV42 )
               != SV42 ) ) )
        = $false )
      | ( ( SV126
          = ( unordered_pair @ SV42 @ SV108 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[686]) ).

thf(709,plain,
    ! [SV42: $i,SV108: $i,SV126: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK10_D @ SV126 @ SV108 @ SV42 ) @ SV126 )
              | ( ( sK10_D @ SV126 @ SV108 @ SV42 )
               != SV108 ) ) )
        = $false )
      | ( ( SV126
          = ( unordered_pair @ SV42 @ SV108 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[686]) ).

thf(710,plain,
    ! [SV42: $i,SV108: $i,SV126: $i] :
      ( ( ( ( sK10_D @ SV126 @ SV108 @ SV42 )
          = SV42 )
        = $true )
      | ( ( ( sK10_D @ SV126 @ SV108 @ SV42 )
          = SV108 )
        = $true )
      | ( ( in @ ( sK10_D @ SV126 @ SV108 @ SV42 ) @ SV126 )
        = $true )
      | ( ( SV126
          = ( unordered_pair @ SV42 @ SV108 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[687]) ).

thf(711,plain,
    ! [SV109: $i,SV42: $i,SV127: $i,SV147: $i] :
      ( ( ( ~ ( in @ SV147 @ SV127 )
          | ( SV147 = SV42 )
          | ( SV147 = SV109 ) )
        = $true )
      | ( ( SV127
          = ( unordered_pair @ SV42 @ SV109 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[688]) ).

thf(712,plain,
    ! [SV109: $i,SV127: $i,SV42: $i] :
      ( ( ( ~ ! [SY247: $i] :
                ( ( SY247 != SV42 )
                | ( in @ SY247 @ SV127 ) )
          | ~ ! [SY248: $i] :
                ( ( SY248 != SV109 )
                | ( in @ SY248 @ SV127 ) ) )
        = $false )
      | ( ( SV127
          = ( unordered_pair @ SV42 @ SV109 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[689]) ).

thf(713,plain,
    ! [SV89: $i,SV113: $i] :
      ( ( ( in @ ( sK12_C @ SV113 @ SV89 ) @ SV113 )
        = $false )
      | ( ( ( sK12_C @ SV113 @ SV89 )
          = SV89 )
        = $false )
      | ( ( SV113
          = ( singleton @ SV89 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[690]) ).

thf(714,plain,
    ! [SV114: $i,SV90: $i,SV144: $i] :
      ( ( ( ( SV144 != SV90 ) )
        = $true )
      | ( ( in @ SV144 @ SV114 )
        = $true )
      | ( ( SV114
          = ( singleton @ SV90 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[691]) ).

thf(715,plain,
    ! [SV90: $i,SV114: $i,SV145: $i] :
      ( ( ( ~ ( in @ SV145 @ SV114 ) )
        = $true )
      | ( ( SV145 = SV90 )
        = $true )
      | ( ( SV114
          = ( singleton @ SV90 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[692]) ).

thf(716,plain,
    ! [SV43: $i,SV119: $i,SV128: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK9_D @ SV128 @ SV119 @ SV43 ) @ SV128 )
              | ~ ( in @ ( sK9_D @ SV128 @ SV119 @ SV43 ) @ SV43 ) ) )
        = $false )
      | ( ( SV128
          = ( set_union2 @ SV43 @ SV119 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[694]) ).

thf(717,plain,
    ! [SV43: $i,SV119: $i,SV128: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK9_D @ SV128 @ SV119 @ SV43 ) @ SV128 )
              | ~ ( in @ ( sK9_D @ SV128 @ SV119 @ SV43 ) @ SV119 ) ) )
        = $false )
      | ( ( SV128
          = ( set_union2 @ SV43 @ SV119 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[694]) ).

thf(718,plain,
    ! [SV43: $i,SV119: $i,SV128: $i] :
      ( ( ( in @ ( sK9_D @ SV128 @ SV119 @ SV43 ) @ SV43 )
        = $true )
      | ( ( in @ ( sK9_D @ SV128 @ SV119 @ SV43 ) @ SV119 )
        = $true )
      | ( ( in @ ( sK9_D @ SV128 @ SV119 @ SV43 ) @ SV128 )
        = $true )
      | ( ( SV128
          = ( set_union2 @ SV43 @ SV119 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[695]) ).

thf(719,plain,
    ! [SV120: $i,SV43: $i,SV129: $i,SV148: $i] :
      ( ( ( ~ ( in @ SV148 @ SV129 )
          | ( in @ SV148 @ SV43 )
          | ( in @ SV148 @ SV120 ) )
        = $true )
      | ( ( SV129
          = ( set_union2 @ SV43 @ SV120 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[696]) ).

thf(720,plain,
    ! [SV120: $i,SV129: $i,SV43: $i] :
      ( ( ( ~ ! [SY250: $i] :
                ( ~ ( in @ SY250 @ SV43 )
                | ( in @ SY250 @ SV129 ) )
          | ~ ! [SY251: $i] :
                ( ~ ( in @ SY251 @ SV120 )
                | ( in @ SY251 @ SV129 ) ) )
        = $false )
      | ( ( SV129
          = ( set_union2 @ SV43 @ SV120 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[697]) ).

thf(721,plain,
    ! [SV44: $i,SV122: $i,SV130: $i] :
      ( ( ( ~ ( in @ ( sK6_D @ SV130 @ SV122 @ SV44 ) @ SV44 ) )
        = $true )
      | ( ( in @ ( sK6_D @ SV130 @ SV122 @ SV44 ) @ SV122 )
        = $true )
      | ( ( ~ ( in @ ( sK6_D @ SV130 @ SV122 @ SV44 ) @ SV130 ) )
        = $true )
      | ( ( SV130
          = ( set_difference @ SV44 @ SV122 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[699]) ).

thf(722,plain,
    ! [SV44: $i,SV122: $i,SV130: $i] :
      ( ( ( ~ ( ( in @ ( sK6_D @ SV130 @ SV122 @ SV44 ) @ SV44 )
              | ( in @ ( sK6_D @ SV130 @ SV122 @ SV44 ) @ SV130 ) ) )
        = $false )
      | ( ( SV130
          = ( set_difference @ SV44 @ SV122 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[700]) ).

thf(723,plain,
    ! [SV44: $i,SV122: $i,SV130: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK6_D @ SV130 @ SV122 @ SV44 ) @ SV122 )
              | ( in @ ( sK6_D @ SV130 @ SV122 @ SV44 ) @ SV130 ) ) )
        = $false )
      | ( ( SV130
          = ( set_difference @ SV44 @ SV122 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[700]) ).

thf(724,plain,
    ! [SV131: $i,SV123: $i,SV44: $i,SV149: $i] :
      ( ( ( ~ ( in @ SV149 @ SV44 )
          | ( in @ SV149 @ SV123 )
          | ( in @ SV149 @ SV131 ) )
        = $true )
      | ( ( SV131
          = ( set_difference @ SV44 @ SV123 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[701]) ).

thf(725,plain,
    ! [SV123: $i,SV44: $i,SV131: $i] :
      ( ( ( ~ ! [SY253: $i] :
                ( ~ ( in @ SY253 @ SV131 )
                | ( in @ SY253 @ SV44 ) )
          | ~ ! [SY254: $i] :
                ( ~ ( in @ SY254 @ SV131 )
                | ~ ( in @ SY254 @ SV123 ) ) )
        = $false )
      | ( ( SV131
          = ( set_difference @ SV44 @ SV123 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[702]) ).

thf(726,plain,
    ! [SV40: $i,SV98: $i,SV124: $i] :
      ( ( ( in @ ( sK7_D @ SV124 @ SV98 @ SV40 ) @ SV40 )
        = $false )
      | ( ( ~ ( in @ ( sK7_D @ SV124 @ SV98 @ SV40 ) @ SV98 ) )
        = $true )
      | ( ( ~ ( in @ ( sK7_D @ SV124 @ SV98 @ SV40 ) @ SV124 ) )
        = $true )
      | ( ( SV124
          = ( set_intersection2 @ SV40 @ SV98 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[703]) ).

thf(727,plain,
    ! [SV40: $i,SV98: $i,SV124: $i] :
      ( ( ( ( in @ ( sK7_D @ SV124 @ SV98 @ SV40 ) @ SV40 )
          | ( in @ ( sK7_D @ SV124 @ SV98 @ SV40 ) @ SV124 ) )
        = $true )
      | ( ( SV124
          = ( set_intersection2 @ SV40 @ SV98 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[704]) ).

thf(728,plain,
    ! [SV40: $i,SV98: $i,SV124: $i] :
      ( ( ( ( in @ ( sK7_D @ SV124 @ SV98 @ SV40 ) @ SV98 )
          | ( in @ ( sK7_D @ SV124 @ SV98 @ SV40 ) @ SV124 ) )
        = $true )
      | ( ( SV124
          = ( set_intersection2 @ SV40 @ SV98 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[705]) ).

thf(729,plain,
    ! [SV125: $i,SV99: $i,SV40: $i,SV146: $i] :
      ( ( ( ~ ( in @ SV146 @ SV40 )
          | ~ ( in @ SV146 @ SV99 ) )
        = $true )
      | ( ( in @ SV146 @ SV125 )
        = $true )
      | ( ( SV125
          = ( set_intersection2 @ SV40 @ SV99 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[706]) ).

thf(730,plain,
    ! [SV99: $i,SV40: $i,SV125: $i] :
      ( ( ( ~ ! [SY244: $i] :
                ( ~ ( in @ SY244 @ SV125 )
                | ( in @ SY244 @ SV40 ) ) )
        = $false )
      | ( ( SV125
          = ( set_intersection2 @ SV40 @ SV99 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[707]) ).

thf(731,plain,
    ! [SV40: $i,SV99: $i,SV125: $i] :
      ( ( ( ~ ! [SY245: $i] :
                ( ~ ( in @ SY245 @ SV125 )
                | ( in @ SY245 @ SV99 ) ) )
        = $false )
      | ( ( SV125
          = ( set_intersection2 @ SV40 @ SV99 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[707]) ).

thf(732,plain,
    ! [SV42: $i,SV108: $i,SV126: $i] :
      ( ( ( ~ ( in @ ( sK10_D @ SV126 @ SV108 @ SV42 ) @ SV126 )
          | ( ( sK10_D @ SV126 @ SV108 @ SV42 )
           != SV42 ) )
        = $true )
      | ( ( SV126
          = ( unordered_pair @ SV42 @ SV108 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[708]) ).

thf(733,plain,
    ! [SV42: $i,SV108: $i,SV126: $i] :
      ( ( ( ~ ( in @ ( sK10_D @ SV126 @ SV108 @ SV42 ) @ SV126 )
          | ( ( sK10_D @ SV126 @ SV108 @ SV42 )
           != SV108 ) )
        = $true )
      | ( ( SV126
          = ( unordered_pair @ SV42 @ SV108 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[709]) ).

thf(734,plain,
    ! [SV109: $i,SV42: $i,SV127: $i,SV147: $i] :
      ( ( ( ~ ( in @ SV147 @ SV127 ) )
        = $true )
      | ( ( ( SV147 = SV42 )
          | ( SV147 = SV109 ) )
        = $true )
      | ( ( SV127
          = ( unordered_pair @ SV42 @ SV109 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[711]) ).

thf(735,plain,
    ! [SV109: $i,SV127: $i,SV42: $i] :
      ( ( ( ~ ! [SY247: $i] :
                ( ( SY247 != SV42 )
                | ( in @ SY247 @ SV127 ) ) )
        = $false )
      | ( ( SV127
          = ( unordered_pair @ SV42 @ SV109 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[712]) ).

thf(736,plain,
    ! [SV42: $i,SV127: $i,SV109: $i] :
      ( ( ( ~ ! [SY248: $i] :
                ( ( SY248 != SV109 )
                | ( in @ SY248 @ SV127 ) ) )
        = $false )
      | ( ( SV127
          = ( unordered_pair @ SV42 @ SV109 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[712]) ).

thf(737,plain,
    ! [SV114: $i,SV90: $i,SV144: $i] :
      ( ( ( SV144 = SV90 )
        = $false )
      | ( ( in @ SV144 @ SV114 )
        = $true )
      | ( ( SV114
          = ( singleton @ SV90 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[714]) ).

thf(738,plain,
    ! [SV90: $i,SV114: $i,SV145: $i] :
      ( ( ( in @ SV145 @ SV114 )
        = $false )
      | ( ( SV145 = SV90 )
        = $true )
      | ( ( SV114
          = ( singleton @ SV90 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[715]) ).

thf(739,plain,
    ! [SV43: $i,SV119: $i,SV128: $i] :
      ( ( ( ~ ( in @ ( sK9_D @ SV128 @ SV119 @ SV43 ) @ SV128 )
          | ~ ( in @ ( sK9_D @ SV128 @ SV119 @ SV43 ) @ SV43 ) )
        = $true )
      | ( ( SV128
          = ( set_union2 @ SV43 @ SV119 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[716]) ).

thf(740,plain,
    ! [SV43: $i,SV119: $i,SV128: $i] :
      ( ( ( ~ ( in @ ( sK9_D @ SV128 @ SV119 @ SV43 ) @ SV128 )
          | ~ ( in @ ( sK9_D @ SV128 @ SV119 @ SV43 ) @ SV119 ) )
        = $true )
      | ( ( SV128
          = ( set_union2 @ SV43 @ SV119 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[717]) ).

thf(741,plain,
    ! [SV120: $i,SV43: $i,SV129: $i,SV148: $i] :
      ( ( ( ~ ( in @ SV148 @ SV129 ) )
        = $true )
      | ( ( ( in @ SV148 @ SV43 )
          | ( in @ SV148 @ SV120 ) )
        = $true )
      | ( ( SV129
          = ( set_union2 @ SV43 @ SV120 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[719]) ).

thf(742,plain,
    ! [SV120: $i,SV129: $i,SV43: $i] :
      ( ( ( ~ ! [SY250: $i] :
                ( ~ ( in @ SY250 @ SV43 )
                | ( in @ SY250 @ SV129 ) ) )
        = $false )
      | ( ( SV129
          = ( set_union2 @ SV43 @ SV120 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[720]) ).

thf(743,plain,
    ! [SV43: $i,SV129: $i,SV120: $i] :
      ( ( ( ~ ! [SY251: $i] :
                ( ~ ( in @ SY251 @ SV120 )
                | ( in @ SY251 @ SV129 ) ) )
        = $false )
      | ( ( SV129
          = ( set_union2 @ SV43 @ SV120 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[720]) ).

thf(744,plain,
    ! [SV44: $i,SV122: $i,SV130: $i] :
      ( ( ( in @ ( sK6_D @ SV130 @ SV122 @ SV44 ) @ SV44 )
        = $false )
      | ( ( in @ ( sK6_D @ SV130 @ SV122 @ SV44 ) @ SV122 )
        = $true )
      | ( ( ~ ( in @ ( sK6_D @ SV130 @ SV122 @ SV44 ) @ SV130 ) )
        = $true )
      | ( ( SV130
          = ( set_difference @ SV44 @ SV122 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[721]) ).

thf(745,plain,
    ! [SV44: $i,SV122: $i,SV130: $i] :
      ( ( ( ( in @ ( sK6_D @ SV130 @ SV122 @ SV44 ) @ SV44 )
          | ( in @ ( sK6_D @ SV130 @ SV122 @ SV44 ) @ SV130 ) )
        = $true )
      | ( ( SV130
          = ( set_difference @ SV44 @ SV122 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[722]) ).

thf(746,plain,
    ! [SV44: $i,SV122: $i,SV130: $i] :
      ( ( ( ~ ( in @ ( sK6_D @ SV130 @ SV122 @ SV44 ) @ SV122 )
          | ( in @ ( sK6_D @ SV130 @ SV122 @ SV44 ) @ SV130 ) )
        = $true )
      | ( ( SV130
          = ( set_difference @ SV44 @ SV122 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[723]) ).

thf(747,plain,
    ! [SV131: $i,SV123: $i,SV44: $i,SV149: $i] :
      ( ( ( ~ ( in @ SV149 @ SV44 )
          | ( in @ SV149 @ SV123 ) )
        = $true )
      | ( ( in @ SV149 @ SV131 )
        = $true )
      | ( ( SV131
          = ( set_difference @ SV44 @ SV123 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[724]) ).

thf(748,plain,
    ! [SV123: $i,SV44: $i,SV131: $i] :
      ( ( ( ~ ! [SY253: $i] :
                ( ~ ( in @ SY253 @ SV131 )
                | ( in @ SY253 @ SV44 ) ) )
        = $false )
      | ( ( SV131
          = ( set_difference @ SV44 @ SV123 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[725]) ).

thf(749,plain,
    ! [SV44: $i,SV123: $i,SV131: $i] :
      ( ( ( ~ ! [SY254: $i] :
                ( ~ ( in @ SY254 @ SV131 )
                | ~ ( in @ SY254 @ SV123 ) ) )
        = $false )
      | ( ( SV131
          = ( set_difference @ SV44 @ SV123 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[725]) ).

thf(750,plain,
    ! [SV40: $i,SV98: $i,SV124: $i] :
      ( ( ( in @ ( sK7_D @ SV124 @ SV98 @ SV40 ) @ SV98 )
        = $false )
      | ( ( in @ ( sK7_D @ SV124 @ SV98 @ SV40 ) @ SV40 )
        = $false )
      | ( ( ~ ( in @ ( sK7_D @ SV124 @ SV98 @ SV40 ) @ SV124 ) )
        = $true )
      | ( ( SV124
          = ( set_intersection2 @ SV40 @ SV98 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[726]) ).

thf(751,plain,
    ! [SV40: $i,SV98: $i,SV124: $i] :
      ( ( ( in @ ( sK7_D @ SV124 @ SV98 @ SV40 ) @ SV40 )
        = $true )
      | ( ( in @ ( sK7_D @ SV124 @ SV98 @ SV40 ) @ SV124 )
        = $true )
      | ( ( SV124
          = ( set_intersection2 @ SV40 @ SV98 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[727]) ).

thf(752,plain,
    ! [SV40: $i,SV98: $i,SV124: $i] :
      ( ( ( in @ ( sK7_D @ SV124 @ SV98 @ SV40 ) @ SV98 )
        = $true )
      | ( ( in @ ( sK7_D @ SV124 @ SV98 @ SV40 ) @ SV124 )
        = $true )
      | ( ( SV124
          = ( set_intersection2 @ SV40 @ SV98 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[728]) ).

thf(753,plain,
    ! [SV125: $i,SV99: $i,SV40: $i,SV146: $i] :
      ( ( ( ~ ( in @ SV146 @ SV40 ) )
        = $true )
      | ( ( ~ ( in @ SV146 @ SV99 ) )
        = $true )
      | ( ( in @ SV146 @ SV125 )
        = $true )
      | ( ( SV125
          = ( set_intersection2 @ SV40 @ SV99 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[729]) ).

thf(754,plain,
    ! [SV99: $i,SV40: $i,SV125: $i] :
      ( ( ( ! [SY244: $i] :
              ( ~ ( in @ SY244 @ SV125 )
              | ( in @ SY244 @ SV40 ) ) )
        = $true )
      | ( ( SV125
          = ( set_intersection2 @ SV40 @ SV99 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[730]) ).

thf(755,plain,
    ! [SV40: $i,SV99: $i,SV125: $i] :
      ( ( ( ! [SY245: $i] :
              ( ~ ( in @ SY245 @ SV125 )
              | ( in @ SY245 @ SV99 ) ) )
        = $true )
      | ( ( SV125
          = ( set_intersection2 @ SV40 @ SV99 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[731]) ).

thf(756,plain,
    ! [SV42: $i,SV108: $i,SV126: $i] :
      ( ( ( ~ ( in @ ( sK10_D @ SV126 @ SV108 @ SV42 ) @ SV126 ) )
        = $true )
      | ( ( ( ( sK10_D @ SV126 @ SV108 @ SV42 )
           != SV42 ) )
        = $true )
      | ( ( SV126
          = ( unordered_pair @ SV42 @ SV108 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[732]) ).

thf(757,plain,
    ! [SV42: $i,SV108: $i,SV126: $i] :
      ( ( ( ~ ( in @ ( sK10_D @ SV126 @ SV108 @ SV42 ) @ SV126 ) )
        = $true )
      | ( ( ( ( sK10_D @ SV126 @ SV108 @ SV42 )
           != SV108 ) )
        = $true )
      | ( ( SV126
          = ( unordered_pair @ SV42 @ SV108 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[733]) ).

thf(758,plain,
    ! [SV109: $i,SV42: $i,SV127: $i,SV147: $i] :
      ( ( ( in @ SV147 @ SV127 )
        = $false )
      | ( ( ( SV147 = SV42 )
          | ( SV147 = SV109 ) )
        = $true )
      | ( ( SV127
          = ( unordered_pair @ SV42 @ SV109 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[734]) ).

thf(759,plain,
    ! [SV109: $i,SV127: $i,SV42: $i] :
      ( ( ( ! [SY247: $i] :
              ( ( SY247 != SV42 )
              | ( in @ SY247 @ SV127 ) ) )
        = $true )
      | ( ( SV127
          = ( unordered_pair @ SV42 @ SV109 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[735]) ).

thf(760,plain,
    ! [SV42: $i,SV127: $i,SV109: $i] :
      ( ( ( ! [SY248: $i] :
              ( ( SY248 != SV109 )
              | ( in @ SY248 @ SV127 ) ) )
        = $true )
      | ( ( SV127
          = ( unordered_pair @ SV42 @ SV109 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[736]) ).

thf(761,plain,
    ! [SV43: $i,SV119: $i,SV128: $i] :
      ( ( ( ~ ( in @ ( sK9_D @ SV128 @ SV119 @ SV43 ) @ SV128 ) )
        = $true )
      | ( ( ~ ( in @ ( sK9_D @ SV128 @ SV119 @ SV43 ) @ SV43 ) )
        = $true )
      | ( ( SV128
          = ( set_union2 @ SV43 @ SV119 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[739]) ).

thf(762,plain,
    ! [SV43: $i,SV119: $i,SV128: $i] :
      ( ( ( ~ ( in @ ( sK9_D @ SV128 @ SV119 @ SV43 ) @ SV128 ) )
        = $true )
      | ( ( ~ ( in @ ( sK9_D @ SV128 @ SV119 @ SV43 ) @ SV119 ) )
        = $true )
      | ( ( SV128
          = ( set_union2 @ SV43 @ SV119 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[740]) ).

thf(763,plain,
    ! [SV120: $i,SV43: $i,SV129: $i,SV148: $i] :
      ( ( ( in @ SV148 @ SV129 )
        = $false )
      | ( ( ( in @ SV148 @ SV43 )
          | ( in @ SV148 @ SV120 ) )
        = $true )
      | ( ( SV129
          = ( set_union2 @ SV43 @ SV120 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[741]) ).

thf(764,plain,
    ! [SV120: $i,SV129: $i,SV43: $i] :
      ( ( ( ! [SY250: $i] :
              ( ~ ( in @ SY250 @ SV43 )
              | ( in @ SY250 @ SV129 ) ) )
        = $true )
      | ( ( SV129
          = ( set_union2 @ SV43 @ SV120 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[742]) ).

thf(765,plain,
    ! [SV43: $i,SV129: $i,SV120: $i] :
      ( ( ( ! [SY251: $i] :
              ( ~ ( in @ SY251 @ SV120 )
              | ( in @ SY251 @ SV129 ) ) )
        = $true )
      | ( ( SV129
          = ( set_union2 @ SV43 @ SV120 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[743]) ).

thf(766,plain,
    ! [SV44: $i,SV122: $i,SV130: $i] :
      ( ( ( in @ ( sK6_D @ SV130 @ SV122 @ SV44 ) @ SV130 )
        = $false )
      | ( ( in @ ( sK6_D @ SV130 @ SV122 @ SV44 ) @ SV122 )
        = $true )
      | ( ( in @ ( sK6_D @ SV130 @ SV122 @ SV44 ) @ SV44 )
        = $false )
      | ( ( SV130
          = ( set_difference @ SV44 @ SV122 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[744]) ).

thf(767,plain,
    ! [SV44: $i,SV122: $i,SV130: $i] :
      ( ( ( in @ ( sK6_D @ SV130 @ SV122 @ SV44 ) @ SV44 )
        = $true )
      | ( ( in @ ( sK6_D @ SV130 @ SV122 @ SV44 ) @ SV130 )
        = $true )
      | ( ( SV130
          = ( set_difference @ SV44 @ SV122 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[745]) ).

thf(768,plain,
    ! [SV44: $i,SV122: $i,SV130: $i] :
      ( ( ( ~ ( in @ ( sK6_D @ SV130 @ SV122 @ SV44 ) @ SV122 ) )
        = $true )
      | ( ( in @ ( sK6_D @ SV130 @ SV122 @ SV44 ) @ SV130 )
        = $true )
      | ( ( SV130
          = ( set_difference @ SV44 @ SV122 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[746]) ).

thf(769,plain,
    ! [SV131: $i,SV123: $i,SV44: $i,SV149: $i] :
      ( ( ( ~ ( in @ SV149 @ SV44 ) )
        = $true )
      | ( ( in @ SV149 @ SV123 )
        = $true )
      | ( ( in @ SV149 @ SV131 )
        = $true )
      | ( ( SV131
          = ( set_difference @ SV44 @ SV123 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[747]) ).

thf(770,plain,
    ! [SV123: $i,SV44: $i,SV131: $i] :
      ( ( ( ! [SY253: $i] :
              ( ~ ( in @ SY253 @ SV131 )
              | ( in @ SY253 @ SV44 ) ) )
        = $true )
      | ( ( SV131
          = ( set_difference @ SV44 @ SV123 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[748]) ).

thf(771,plain,
    ! [SV44: $i,SV123: $i,SV131: $i] :
      ( ( ( ! [SY254: $i] :
              ( ~ ( in @ SY254 @ SV131 )
              | ~ ( in @ SY254 @ SV123 ) ) )
        = $true )
      | ( ( SV131
          = ( set_difference @ SV44 @ SV123 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[749]) ).

thf(772,plain,
    ! [SV40: $i,SV98: $i,SV124: $i] :
      ( ( ( in @ ( sK7_D @ SV124 @ SV98 @ SV40 ) @ SV124 )
        = $false )
      | ( ( in @ ( sK7_D @ SV124 @ SV98 @ SV40 ) @ SV40 )
        = $false )
      | ( ( in @ ( sK7_D @ SV124 @ SV98 @ SV40 ) @ SV98 )
        = $false )
      | ( ( SV124
          = ( set_intersection2 @ SV40 @ SV98 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[750]) ).

thf(773,plain,
    ! [SV125: $i,SV99: $i,SV40: $i,SV146: $i] :
      ( ( ( in @ SV146 @ SV40 )
        = $false )
      | ( ( ~ ( in @ SV146 @ SV99 ) )
        = $true )
      | ( ( in @ SV146 @ SV125 )
        = $true )
      | ( ( SV125
          = ( set_intersection2 @ SV40 @ SV99 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[753]) ).

thf(774,plain,
    ! [SV99: $i,SV40: $i,SV125: $i,SV150: $i] :
      ( ( ( ~ ( in @ SV150 @ SV125 )
          | ( in @ SV150 @ SV40 ) )
        = $true )
      | ( ( SV125
          = ( set_intersection2 @ SV40 @ SV99 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[754]) ).

thf(775,plain,
    ! [SV40: $i,SV99: $i,SV125: $i,SV151: $i] :
      ( ( ( ~ ( in @ SV151 @ SV125 )
          | ( in @ SV151 @ SV99 ) )
        = $true )
      | ( ( SV125
          = ( set_intersection2 @ SV40 @ SV99 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[755]) ).

thf(776,plain,
    ! [SV42: $i,SV108: $i,SV126: $i] :
      ( ( ( in @ ( sK10_D @ SV126 @ SV108 @ SV42 ) @ SV126 )
        = $false )
      | ( ( ( ( sK10_D @ SV126 @ SV108 @ SV42 )
           != SV42 ) )
        = $true )
      | ( ( SV126
          = ( unordered_pair @ SV42 @ SV108 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[756]) ).

thf(777,plain,
    ! [SV42: $i,SV108: $i,SV126: $i] :
      ( ( ( in @ ( sK10_D @ SV126 @ SV108 @ SV42 ) @ SV126 )
        = $false )
      | ( ( ( ( sK10_D @ SV126 @ SV108 @ SV42 )
           != SV108 ) )
        = $true )
      | ( ( SV126
          = ( unordered_pair @ SV42 @ SV108 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[757]) ).

thf(778,plain,
    ! [SV127: $i,SV109: $i,SV42: $i,SV147: $i] :
      ( ( ( SV147 = SV42 )
        = $true )
      | ( ( SV147 = SV109 )
        = $true )
      | ( ( in @ SV147 @ SV127 )
        = $false )
      | ( ( SV127
          = ( unordered_pair @ SV42 @ SV109 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[758]) ).

thf(779,plain,
    ! [SV109: $i,SV127: $i,SV42: $i,SV152: $i] :
      ( ( ( ( SV152 != SV42 )
          | ( in @ SV152 @ SV127 ) )
        = $true )
      | ( ( SV127
          = ( unordered_pair @ SV42 @ SV109 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[759]) ).

thf(780,plain,
    ! [SV42: $i,SV127: $i,SV109: $i,SV153: $i] :
      ( ( ( ( SV153 != SV109 )
          | ( in @ SV153 @ SV127 ) )
        = $true )
      | ( ( SV127
          = ( unordered_pair @ SV42 @ SV109 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[760]) ).

thf(781,plain,
    ! [SV43: $i,SV119: $i,SV128: $i] :
      ( ( ( in @ ( sK9_D @ SV128 @ SV119 @ SV43 ) @ SV128 )
        = $false )
      | ( ( ~ ( in @ ( sK9_D @ SV128 @ SV119 @ SV43 ) @ SV43 ) )
        = $true )
      | ( ( SV128
          = ( set_union2 @ SV43 @ SV119 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[761]) ).

thf(782,plain,
    ! [SV43: $i,SV119: $i,SV128: $i] :
      ( ( ( in @ ( sK9_D @ SV128 @ SV119 @ SV43 ) @ SV128 )
        = $false )
      | ( ( ~ ( in @ ( sK9_D @ SV128 @ SV119 @ SV43 ) @ SV119 ) )
        = $true )
      | ( ( SV128
          = ( set_union2 @ SV43 @ SV119 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[762]) ).

thf(783,plain,
    ! [SV129: $i,SV120: $i,SV43: $i,SV148: $i] :
      ( ( ( in @ SV148 @ SV43 )
        = $true )
      | ( ( in @ SV148 @ SV120 )
        = $true )
      | ( ( in @ SV148 @ SV129 )
        = $false )
      | ( ( SV129
          = ( set_union2 @ SV43 @ SV120 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[763]) ).

thf(784,plain,
    ! [SV120: $i,SV129: $i,SV43: $i,SV154: $i] :
      ( ( ( ~ ( in @ SV154 @ SV43 )
          | ( in @ SV154 @ SV129 ) )
        = $true )
      | ( ( SV129
          = ( set_union2 @ SV43 @ SV120 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[764]) ).

thf(785,plain,
    ! [SV43: $i,SV129: $i,SV120: $i,SV155: $i] :
      ( ( ( ~ ( in @ SV155 @ SV120 )
          | ( in @ SV155 @ SV129 ) )
        = $true )
      | ( ( SV129
          = ( set_union2 @ SV43 @ SV120 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[765]) ).

thf(786,plain,
    ! [SV44: $i,SV122: $i,SV130: $i] :
      ( ( ( in @ ( sK6_D @ SV130 @ SV122 @ SV44 ) @ SV122 )
        = $false )
      | ( ( in @ ( sK6_D @ SV130 @ SV122 @ SV44 ) @ SV130 )
        = $true )
      | ( ( SV130
          = ( set_difference @ SV44 @ SV122 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[768]) ).

thf(787,plain,
    ! [SV131: $i,SV123: $i,SV44: $i,SV149: $i] :
      ( ( ( in @ SV149 @ SV44 )
        = $false )
      | ( ( in @ SV149 @ SV123 )
        = $true )
      | ( ( in @ SV149 @ SV131 )
        = $true )
      | ( ( SV131
          = ( set_difference @ SV44 @ SV123 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[769]) ).

thf(788,plain,
    ! [SV123: $i,SV44: $i,SV131: $i,SV156: $i] :
      ( ( ( ~ ( in @ SV156 @ SV131 )
          | ( in @ SV156 @ SV44 ) )
        = $true )
      | ( ( SV131
          = ( set_difference @ SV44 @ SV123 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[770]) ).

thf(789,plain,
    ! [SV44: $i,SV123: $i,SV131: $i,SV157: $i] :
      ( ( ( ~ ( in @ SV157 @ SV131 )
          | ~ ( in @ SV157 @ SV123 ) )
        = $true )
      | ( ( SV131
          = ( set_difference @ SV44 @ SV123 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[771]) ).

thf(790,plain,
    ! [SV125: $i,SV40: $i,SV99: $i,SV146: $i] :
      ( ( ( in @ SV146 @ SV99 )
        = $false )
      | ( ( in @ SV146 @ SV40 )
        = $false )
      | ( ( in @ SV146 @ SV125 )
        = $true )
      | ( ( SV125
          = ( set_intersection2 @ SV40 @ SV99 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[773]) ).

thf(791,plain,
    ! [SV99: $i,SV40: $i,SV125: $i,SV150: $i] :
      ( ( ( ~ ( in @ SV150 @ SV125 ) )
        = $true )
      | ( ( in @ SV150 @ SV40 )
        = $true )
      | ( ( SV125
          = ( set_intersection2 @ SV40 @ SV99 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[774]) ).

thf(792,plain,
    ! [SV40: $i,SV99: $i,SV125: $i,SV151: $i] :
      ( ( ( ~ ( in @ SV151 @ SV125 ) )
        = $true )
      | ( ( in @ SV151 @ SV99 )
        = $true )
      | ( ( SV125
          = ( set_intersection2 @ SV40 @ SV99 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[775]) ).

thf(793,plain,
    ! [SV42: $i,SV108: $i,SV126: $i] :
      ( ( ( ( sK10_D @ SV126 @ SV108 @ SV42 )
          = SV42 )
        = $false )
      | ( ( in @ ( sK10_D @ SV126 @ SV108 @ SV42 ) @ SV126 )
        = $false )
      | ( ( SV126
          = ( unordered_pair @ SV42 @ SV108 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[776]) ).

thf(794,plain,
    ! [SV42: $i,SV108: $i,SV126: $i] :
      ( ( ( ( sK10_D @ SV126 @ SV108 @ SV42 )
          = SV108 )
        = $false )
      | ( ( in @ ( sK10_D @ SV126 @ SV108 @ SV42 ) @ SV126 )
        = $false )
      | ( ( SV126
          = ( unordered_pair @ SV42 @ SV108 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[777]) ).

thf(795,plain,
    ! [SV109: $i,SV127: $i,SV42: $i,SV152: $i] :
      ( ( ( ( SV152 != SV42 ) )
        = $true )
      | ( ( in @ SV152 @ SV127 )
        = $true )
      | ( ( SV127
          = ( unordered_pair @ SV42 @ SV109 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[779]) ).

thf(796,plain,
    ! [SV42: $i,SV127: $i,SV109: $i,SV153: $i] :
      ( ( ( ( SV153 != SV109 ) )
        = $true )
      | ( ( in @ SV153 @ SV127 )
        = $true )
      | ( ( SV127
          = ( unordered_pair @ SV42 @ SV109 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[780]) ).

thf(797,plain,
    ! [SV43: $i,SV119: $i,SV128: $i] :
      ( ( ( in @ ( sK9_D @ SV128 @ SV119 @ SV43 ) @ SV43 )
        = $false )
      | ( ( in @ ( sK9_D @ SV128 @ SV119 @ SV43 ) @ SV128 )
        = $false )
      | ( ( SV128
          = ( set_union2 @ SV43 @ SV119 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[781]) ).

thf(798,plain,
    ! [SV43: $i,SV119: $i,SV128: $i] :
      ( ( ( in @ ( sK9_D @ SV128 @ SV119 @ SV43 ) @ SV119 )
        = $false )
      | ( ( in @ ( sK9_D @ SV128 @ SV119 @ SV43 ) @ SV128 )
        = $false )
      | ( ( SV128
          = ( set_union2 @ SV43 @ SV119 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[782]) ).

thf(799,plain,
    ! [SV120: $i,SV129: $i,SV43: $i,SV154: $i] :
      ( ( ( ~ ( in @ SV154 @ SV43 ) )
        = $true )
      | ( ( in @ SV154 @ SV129 )
        = $true )
      | ( ( SV129
          = ( set_union2 @ SV43 @ SV120 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[784]) ).

thf(800,plain,
    ! [SV43: $i,SV129: $i,SV120: $i,SV155: $i] :
      ( ( ( ~ ( in @ SV155 @ SV120 ) )
        = $true )
      | ( ( in @ SV155 @ SV129 )
        = $true )
      | ( ( SV129
          = ( set_union2 @ SV43 @ SV120 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[785]) ).

thf(801,plain,
    ! [SV123: $i,SV44: $i,SV131: $i,SV156: $i] :
      ( ( ( ~ ( in @ SV156 @ SV131 ) )
        = $true )
      | ( ( in @ SV156 @ SV44 )
        = $true )
      | ( ( SV131
          = ( set_difference @ SV44 @ SV123 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[788]) ).

thf(802,plain,
    ! [SV44: $i,SV123: $i,SV131: $i,SV157: $i] :
      ( ( ( ~ ( in @ SV157 @ SV131 ) )
        = $true )
      | ( ( ~ ( in @ SV157 @ SV123 ) )
        = $true )
      | ( ( SV131
          = ( set_difference @ SV44 @ SV123 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[789]) ).

thf(803,plain,
    ! [SV99: $i,SV40: $i,SV125: $i,SV150: $i] :
      ( ( ( in @ SV150 @ SV125 )
        = $false )
      | ( ( in @ SV150 @ SV40 )
        = $true )
      | ( ( SV125
          = ( set_intersection2 @ SV40 @ SV99 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[791]) ).

thf(804,plain,
    ! [SV40: $i,SV99: $i,SV125: $i,SV151: $i] :
      ( ( ( in @ SV151 @ SV125 )
        = $false )
      | ( ( in @ SV151 @ SV99 )
        = $true )
      | ( ( SV125
          = ( set_intersection2 @ SV40 @ SV99 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[792]) ).

thf(805,plain,
    ! [SV109: $i,SV127: $i,SV42: $i,SV152: $i] :
      ( ( ( SV152 = SV42 )
        = $false )
      | ( ( in @ SV152 @ SV127 )
        = $true )
      | ( ( SV127
          = ( unordered_pair @ SV42 @ SV109 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[795]) ).

thf(806,plain,
    ! [SV42: $i,SV127: $i,SV109: $i,SV153: $i] :
      ( ( ( SV153 = SV109 )
        = $false )
      | ( ( in @ SV153 @ SV127 )
        = $true )
      | ( ( SV127
          = ( unordered_pair @ SV42 @ SV109 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[796]) ).

thf(807,plain,
    ! [SV120: $i,SV129: $i,SV43: $i,SV154: $i] :
      ( ( ( in @ SV154 @ SV43 )
        = $false )
      | ( ( in @ SV154 @ SV129 )
        = $true )
      | ( ( SV129
          = ( set_union2 @ SV43 @ SV120 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[799]) ).

thf(808,plain,
    ! [SV43: $i,SV129: $i,SV120: $i,SV155: $i] :
      ( ( ( in @ SV155 @ SV120 )
        = $false )
      | ( ( in @ SV155 @ SV129 )
        = $true )
      | ( ( SV129
          = ( set_union2 @ SV43 @ SV120 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[800]) ).

thf(809,plain,
    ! [SV123: $i,SV44: $i,SV131: $i,SV156: $i] :
      ( ( ( in @ SV156 @ SV131 )
        = $false )
      | ( ( in @ SV156 @ SV44 )
        = $true )
      | ( ( SV131
          = ( set_difference @ SV44 @ SV123 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[801]) ).

thf(810,plain,
    ! [SV44: $i,SV123: $i,SV131: $i,SV157: $i] :
      ( ( ( in @ SV157 @ SV131 )
        = $false )
      | ( ( ~ ( in @ SV157 @ SV123 ) )
        = $true )
      | ( ( SV131
          = ( set_difference @ SV44 @ SV123 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[802]) ).

thf(811,plain,
    ! [SV44: $i,SV131: $i,SV123: $i,SV157: $i] :
      ( ( ( in @ SV157 @ SV123 )
        = $false )
      | ( ( in @ SV157 @ SV131 )
        = $false )
      | ( ( SV131
          = ( set_difference @ SV44 @ SV123 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[810]) ).

thf(812,plain,
    $false = $true,
    inference(fo_atp_e,[status(thm)],[222,811,809,808,807,806,805,804,803,798,797,794,793,790,787,786,783,778,772,767,766,752,751,738,737,718,713,710,698,693,677,668,666,665,660,659,645,644,637,633,630,629,621,603,592,591,583,582,575,574,573,572,571,567,566,565,564,542,530,500,490,489,488,485,484,483,472,446,445,444,438,436,432,422,396,386,346,343,342,341,337,334,332,330,329,323,321,300,299,298,297,295,294,292,291,281,271,234,228,227,226,225,224,223]) ).

thf(813,plain,
    ( ( ! [A: $i] :
          ( ( singleton @ A )
         != empty_set ) )
    = $true ),
    inference(copy,[status(thm)],[181]) ).

thf(814,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)],[180]) ).

thf(815,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( subset @ A @ B )
          | ( ( set_union2 @ A @ B )
            = B ) ) )
    = $true ),
    inference(copy,[status(thm)],[179]) ).

thf(816,plain,
    ( ( ! [A: $i,B: $i] : ( subset @ ( set_intersection2 @ A @ B ) @ A ) )
    = $true ),
    inference(copy,[status(thm)],[128]) ).

thf(817,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ~ ( subset @ A @ B )
          | ~ ( subset @ A @ C )
          | ( subset @ A @ ( set_intersection2 @ B @ C ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[178]) ).

thf(818,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ~ ( subset @ A @ B )
          | ~ ( subset @ B @ C )
          | ( subset @ A @ C ) ) )
    = $true ),
    inference(copy,[status(thm)],[177]) ).

thf(819,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( subset @ A @ B )
          | ! [C: $i] : ( subset @ ( set_intersection2 @ A @ C ) @ ( set_intersection2 @ B @ C ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[176]) ).

thf(820,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( subset @ A @ B )
          | ( ( set_intersection2 @ A @ B )
            = A ) ) )
    = $true ),
    inference(copy,[status(thm)],[175]) ).

thf(821,plain,
    ( ( ! [A: $i] : ( subset @ empty_set @ A ) )
    = $true ),
    inference(copy,[status(thm)],[123]) ).

thf(822,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( subset @ A @ B )
          | ! [C: $i] : ( subset @ ( set_difference @ A @ C ) @ ( set_difference @ B @ C ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[174]) ).

thf(823,plain,
    ( ( ! [A: $i,B: $i] : ( subset @ ( set_difference @ A @ B ) @ A ) )
    = $true ),
    inference(copy,[status(thm)],[121]) ).

thf(824,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)],[173]) ).

thf(825,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( set_union2 @ A @ ( set_difference @ B @ A ) )
          = ( set_union2 @ A @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[119]) ).

thf(826,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( disjoint @ A @ B )
          | ( ( in @ ( sK14_C @ B @ A ) @ A )
            & ( in @ ( sK14_C @ B @ A ) @ B ) ) )
      & ! [A: $i,B: $i] :
          ( ! [C: $i] :
              ( ~ ( in @ C @ A )
              | ~ ( in @ C @ B ) )
          | ~ ( disjoint @ A @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[172]) ).

thf(827,plain,
    ( ( ! [A: $i] :
          ( ~ ( subset @ A @ empty_set )
          | ( A = empty_set ) ) )
    = $true ),
    inference(copy,[status(thm)],[171]) ).

thf(828,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( set_difference @ ( set_union2 @ A @ B ) @ B )
          = ( set_difference @ A @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[116]) ).

thf(829,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( subset @ A @ B )
          | ( B
            = ( set_union2 @ A @ ( set_difference @ B @ A ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[170]) ).

thf(830,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( set_difference @ A @ ( set_difference @ A @ B ) )
          = ( set_intersection2 @ A @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[114]) ).

thf(831,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( disjoint @ A @ B )
          | ( in @ ( sK13_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)],[169]) ).

thf(832,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( proper_subset @ B @ A )
          | ~ ( subset @ A @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[168]) ).

thf(833,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ~ ( disjoint @ B @ C )
          | ~ ( subset @ A @ B )
          | ( disjoint @ A @ C ) ) )
    = $true ),
    inference(copy,[status(thm)],[167]) ).

thf(834,plain,
    ( ( ! [A: $i] :
          ( ( unordered_pair @ A @ A )
          = ( singleton @ A ) ) )
    = $true ),
    inference(copy,[status(thm)],[110]) ).

thf(835,plain,
    ( ( ! [A: $i,B: $i] : ( subset @ A @ ( set_union2 @ A @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[109]) ).

thf(836,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)],[166]) ).

thf(837,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ~ ( subset @ A @ B )
          | ~ ( subset @ C @ B )
          | ( subset @ ( set_union2 @ A @ C ) @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[165]) ).

thf(838,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( in @ A @ B )
          | ~ ( in @ B @ A ) ) )
    = $true ),
    inference(copy,[status(thm)],[164]) ).

thf(839,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( proper_subset @ A @ B )
          | ~ ( proper_subset @ B @ A ) ) )
    = $true ),
    inference(copy,[status(thm)],[163]) ).

thf(840,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( unordered_pair @ A @ B )
          = ( unordered_pair @ B @ A ) ) )
    = $true ),
    inference(copy,[status(thm)],[104]) ).

thf(841,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( set_union2 @ A @ B )
          = ( set_union2 @ B @ A ) ) )
    = $true ),
    inference(copy,[status(thm)],[103]) ).

thf(842,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( set_intersection2 @ A @ B )
          = ( set_intersection2 @ B @ A ) ) )
    = $true ),
    inference(copy,[status(thm)],[102]) ).

thf(843,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)],[162]) ).

thf(844,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( ( ( ( sK12_C @ B @ A )
               != A )
              | ~ ( in @ ( sK12_C @ B @ A ) @ B ) )
            & ( ( ( sK12_C @ B @ A )
                = A )
              | ( in @ ( sK12_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)],[161]) ).

thf(845,plain,
    ( ( ! [A: $i] :
          ( ( in @ ( sK11_B @ A ) @ A )
          | ( A = empty_set ) )
      & ! [A: $i] :
          ( ( A != empty_set )
          | ! [B: $i] :
              ~ ( in @ B @ A ) ) )
    = $true ),
    inference(copy,[status(thm)],[160]) ).

thf(846,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)],[159]) ).

thf(847,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)],[158]) ).

thf(848,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)],[157]) ).

thf(849,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)],[156]) ).

thf(850,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)],[155]) ).

thf(851,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)],[154]) ).

thf(852,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)],[153]) ).

thf(853,plain,
    $true = $true,
    inference(copy,[status(thm)],[91]) ).

thf(854,plain,
    $true = $true,
    inference(copy,[status(thm)],[90]) ).

thf(855,plain,
    $true = $true,
    inference(copy,[status(thm)],[89]) ).

thf(856,plain,
    $true = $true,
    inference(copy,[status(thm)],[88]) ).

thf(857,plain,
    $true = $true,
    inference(copy,[status(thm)],[87]) ).

thf(858,plain,
    $true = $true,
    inference(copy,[status(thm)],[86]) ).

thf(859,plain,
    ( ( empty @ empty_set )
    = $true ),
    inference(copy,[status(thm)],[85]) ).

thf(860,plain,
    ( ( ! [A: $i] :
          ( ( empty @ A )
          | ! [B: $i] :
              ~ ( empty @ ( set_union2 @ A @ B ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[152]) ).

thf(861,plain,
    ( ( ! [A: $i] :
          ( ( empty @ A )
          | ! [B: $i] :
              ~ ( empty @ ( set_union2 @ B @ A ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[151]) ).

thf(862,plain,
    ( ( ! [A: $i] :
          ( ( set_union2 @ A @ A )
          = A ) )
    = $true ),
    inference(copy,[status(thm)],[150]) ).

thf(863,plain,
    ( ( ! [A: $i] :
          ( ( set_intersection2 @ A @ A )
          = A ) )
    = $true ),
    inference(copy,[status(thm)],[149]) ).

thf(864,plain,
    ( ( ! [A: $i] :
          ~ ( proper_subset @ A @ A ) )
    = $true ),
    inference(copy,[status(thm)],[148]) ).

thf(865,plain,
    ( ( empty @ sK5_A )
    = $true ),
    inference(copy,[status(thm)],[147]) ).

thf(866,plain,
    ( ( ~ ( empty @ sK4_A ) )
    = $true ),
    inference(copy,[status(thm)],[146]) ).

thf(867,plain,
    ( ( ! [A: $i] : ( subset @ A @ A ) )
    = $true ),
    inference(copy,[status(thm)],[145]) ).

thf(868,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( disjoint @ A @ B )
          | ( disjoint @ B @ A ) ) )
    = $true ),
    inference(copy,[status(thm)],[144]) ).

thf(869,plain,
    ( ( ! [A: $i] :
          ( ( set_union2 @ A @ empty_set )
          = A ) )
    = $true ),
    inference(copy,[status(thm)],[75]) ).

thf(870,plain,
    ( ( ! [A: $i] :
          ( ( set_intersection2 @ A @ empty_set )
          = empty_set ) )
    = $true ),
    inference(copy,[status(thm)],[74]) ).

thf(871,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)],[143]) ).

thf(872,plain,
    ( ( ! [A: $i] :
          ( ( set_difference @ A @ empty_set )
          = A ) )
    = $true ),
    inference(copy,[status(thm)],[72]) ).

thf(873,plain,
    ( ( ! [A: $i] :
          ( ( set_difference @ empty_set @ A )
          = empty_set ) )
    = $true ),
    inference(copy,[status(thm)],[71]) ).

thf(874,plain,
    ( ( ! [A: $i] :
          ( ~ ( empty @ A )
          | ( A = empty_set ) ) )
    = $true ),
    inference(copy,[status(thm)],[142]) ).

thf(875,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( empty @ B )
          | ~ ( in @ A @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[141]) ).

thf(876,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( A = B )
          | ~ ( empty @ A )
          | ~ ( empty @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[140]) ).

thf(877,plain,
    ( ( ( in @ sK1_A @ sK2_SY126 )
      & ~ ( subset @ ( singleton @ sK1_A ) @ sK2_SY126 ) )
    = $true ),
    inference(copy,[status(thm)],[139]) ).

thf(878,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)],[836]) ).

thf(879,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)],[847]) ).

thf(880,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)],[848]) ).

thf(881,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)],[850]) ).

thf(882,plain,
    ( ( ~ ( ~ ! [SX0: $i,SX1: $i] :
                ( ( disjoint @ SX0 @ SX1 )
                | ( in @ ( sK13_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)],[831]) ).

thf(883,plain,
    ( ( ~ ( ~ ! [SX0: $i] :
                ( ( in @ ( sK11_B @ SX0 ) @ SX0 )
                | ( SX0 = empty_set ) )
          | ~ ! [SX0: $i] :
                ( ( SX0 != empty_set )
                | ! [SX1: $i] :
                    ~ ( in @ SX1 @ SX0 ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[845]) ).

thf(884,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)],[871]) ).

thf(885,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)],[852]) ).

thf(886,plain,
    ( ( ~ ( ~ ! [SX0: $i,SX1: $i] :
                ( ~ ( ~ ( ( ( sK12_C @ SX1 @ SX0 )
                         != SX0 )
                        | ~ ( in @ ( sK12_C @ SX1 @ SX0 ) @ SX1 ) )
                    | ~ ( ( ( sK12_C @ SX1 @ SX0 )
                          = SX0 )
                        | ( in @ ( sK12_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)],[844]) ).

thf(887,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)],[849]) ).

thf(888,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)],[843]) ).

thf(889,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)],[814]) ).

thf(890,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)],[851]) ).

thf(891,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)],[824]) ).

thf(892,plain,
    ( ( ~ ( ~ ( in @ sK1_A @ sK2_SY126 )
          | ~ ~ ( subset @ ( singleton @ sK1_A ) @ sK2_SY126 ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[877]) ).

thf(893,plain,
    ( ( ~ ( ~ ! [SX0: $i,SX1: $i] :
                ( ( disjoint @ SX0 @ SX1 )
                | ~ ( ~ ( in @ ( sK14_C @ SX1 @ SX0 ) @ SX0 )
                    | ~ ( in @ ( sK14_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)],[826]) ).

thf(894,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)],[846]) ).

thf(895,plain,
    ! [SV158: $i] :
      ( ( ( ( singleton @ SV158 )
         != empty_set ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[813]) ).

thf(896,plain,
    ! [SV159: $i] :
      ( ( ! [SY259: $i] :
            ( ~ ( subset @ SV159 @ SY259 )
            | ( ( set_union2 @ SV159 @ SY259 )
              = SY259 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[815]) ).

thf(897,plain,
    ! [SV160: $i] :
      ( ( ! [SY260: $i] : ( subset @ ( set_intersection2 @ SV160 @ SY260 ) @ SV160 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[816]) ).

thf(898,plain,
    ! [SV161: $i] :
      ( ( ! [SY261: $i,SY262: $i] :
            ( ~ ( subset @ SV161 @ SY261 )
            | ~ ( subset @ SV161 @ SY262 )
            | ( subset @ SV161 @ ( set_intersection2 @ SY261 @ SY262 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[817]) ).

thf(899,plain,
    ! [SV162: $i] :
      ( ( ! [SY263: $i,SY264: $i] :
            ( ~ ( subset @ SV162 @ SY263 )
            | ~ ( subset @ SY263 @ SY264 )
            | ( subset @ SV162 @ SY264 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[818]) ).

thf(900,plain,
    ! [SV163: $i] :
      ( ( ! [SY265: $i] :
            ( ~ ( subset @ SV163 @ SY265 )
            | ! [SY266: $i] : ( subset @ ( set_intersection2 @ SV163 @ SY266 ) @ ( set_intersection2 @ SY265 @ SY266 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[819]) ).

thf(901,plain,
    ! [SV164: $i] :
      ( ( ! [SY267: $i] :
            ( ~ ( subset @ SV164 @ SY267 )
            | ( ( set_intersection2 @ SV164 @ SY267 )
              = SV164 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[820]) ).

thf(902,plain,
    ! [SV165: $i] :
      ( ( subset @ empty_set @ SV165 )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[821]) ).

thf(903,plain,
    ! [SV166: $i] :
      ( ( ! [SY268: $i] :
            ( ~ ( subset @ SV166 @ SY268 )
            | ! [SY269: $i] : ( subset @ ( set_difference @ SV166 @ SY269 ) @ ( set_difference @ SY268 @ SY269 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[822]) ).

thf(904,plain,
    ! [SV167: $i] :
      ( ( ! [SY270: $i] : ( subset @ ( set_difference @ SV167 @ SY270 ) @ SV167 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[823]) ).

thf(905,plain,
    ! [SV168: $i] :
      ( ( ! [SY271: $i] :
            ( ( set_union2 @ SV168 @ ( set_difference @ SY271 @ SV168 ) )
            = ( set_union2 @ SV168 @ SY271 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[825]) ).

thf(906,plain,
    ! [SV169: $i] :
      ( ( ~ ( subset @ SV169 @ empty_set )
        | ( SV169 = empty_set ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[827]) ).

thf(907,plain,
    ! [SV170: $i] :
      ( ( ! [SY272: $i] :
            ( ( set_difference @ ( set_union2 @ SV170 @ SY272 ) @ SY272 )
            = ( set_difference @ SV170 @ SY272 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[828]) ).

thf(908,plain,
    ! [SV171: $i] :
      ( ( ! [SY273: $i] :
            ( ~ ( subset @ SV171 @ SY273 )
            | ( SY273
              = ( set_union2 @ SV171 @ ( set_difference @ SY273 @ SV171 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[829]) ).

thf(909,plain,
    ! [SV172: $i] :
      ( ( ! [SY274: $i] :
            ( ( set_difference @ SV172 @ ( set_difference @ SV172 @ SY274 ) )
            = ( set_intersection2 @ SV172 @ SY274 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[830]) ).

thf(910,plain,
    ! [SV173: $i] :
      ( ( ! [SY275: $i] :
            ( ~ ( proper_subset @ SY275 @ SV173 )
            | ~ ( subset @ SV173 @ SY275 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[832]) ).

thf(911,plain,
    ! [SV174: $i] :
      ( ( ! [SY276: $i,SY277: $i] :
            ( ~ ( disjoint @ SY276 @ SY277 )
            | ~ ( subset @ SV174 @ SY276 )
            | ( disjoint @ SV174 @ SY277 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[833]) ).

thf(912,plain,
    ! [SV175: $i] :
      ( ( ( unordered_pair @ SV175 @ SV175 )
        = ( singleton @ SV175 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[834]) ).

thf(913,plain,
    ! [SV176: $i] :
      ( ( ! [SY278: $i] : ( subset @ SV176 @ ( set_union2 @ SV176 @ SY278 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[835]) ).

thf(914,plain,
    ! [SV177: $i] :
      ( ( ! [SY279: $i,SY280: $i] :
            ( ~ ( subset @ SV177 @ SY279 )
            | ~ ( subset @ SY280 @ SY279 )
            | ( subset @ ( set_union2 @ SV177 @ SY280 ) @ SY279 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[837]) ).

thf(915,plain,
    ! [SV178: $i] :
      ( ( ! [SY281: $i] :
            ( ~ ( in @ SV178 @ SY281 )
            | ~ ( in @ SY281 @ SV178 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[838]) ).

thf(916,plain,
    ! [SV179: $i] :
      ( ( ! [SY282: $i] :
            ( ~ ( proper_subset @ SV179 @ SY282 )
            | ~ ( proper_subset @ SY282 @ SV179 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[839]) ).

thf(917,plain,
    ! [SV180: $i] :
      ( ( ! [SY283: $i] :
            ( ( unordered_pair @ SV180 @ SY283 )
            = ( unordered_pair @ SY283 @ SV180 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[840]) ).

thf(918,plain,
    ! [SV181: $i] :
      ( ( ! [SY284: $i] :
            ( ( set_union2 @ SV181 @ SY284 )
            = ( set_union2 @ SY284 @ SV181 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[841]) ).

thf(919,plain,
    ! [SV182: $i] :
      ( ( ! [SY285: $i] :
            ( ( set_intersection2 @ SV182 @ SY285 )
            = ( set_intersection2 @ SY285 @ SV182 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[842]) ).

thf(920,plain,
    ! [SV183: $i] :
      ( ( ( empty @ SV183 )
        | ! [SY286: $i] :
            ~ ( empty @ ( set_union2 @ SV183 @ SY286 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[860]) ).

thf(921,plain,
    ! [SV184: $i] :
      ( ( ( empty @ SV184 )
        | ! [SY287: $i] :
            ~ ( empty @ ( set_union2 @ SY287 @ SV184 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[861]) ).

thf(922,plain,
    ! [SV185: $i] :
      ( ( ( set_union2 @ SV185 @ SV185 )
        = SV185 )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[862]) ).

thf(923,plain,
    ! [SV186: $i] :
      ( ( ( set_intersection2 @ SV186 @ SV186 )
        = SV186 )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[863]) ).

thf(924,plain,
    ! [SV187: $i] :
      ( ( ~ ( proper_subset @ SV187 @ SV187 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[864]) ).

thf(925,plain,
    ( ( empty @ sK4_A )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[866]) ).

thf(926,plain,
    ! [SV188: $i] :
      ( ( subset @ SV188 @ SV188 )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[867]) ).

thf(927,plain,
    ! [SV189: $i] :
      ( ( ! [SY288: $i] :
            ( ~ ( disjoint @ SV189 @ SY288 )
            | ( disjoint @ SY288 @ SV189 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[868]) ).

thf(928,plain,
    ! [SV190: $i] :
      ( ( ( set_union2 @ SV190 @ empty_set )
        = SV190 )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[869]) ).

thf(929,plain,
    ! [SV191: $i] :
      ( ( ( set_intersection2 @ SV191 @ empty_set )
        = empty_set )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[870]) ).

thf(930,plain,
    ! [SV192: $i] :
      ( ( ( set_difference @ SV192 @ empty_set )
        = SV192 )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[872]) ).

thf(931,plain,
    ! [SV193: $i] :
      ( ( ( set_difference @ empty_set @ SV193 )
        = empty_set )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[873]) ).

thf(932,plain,
    ! [SV194: $i] :
      ( ( ~ ( empty @ SV194 )
        | ( SV194 = empty_set ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[874]) ).

thf(933,plain,
    ! [SV195: $i] :
      ( ( ! [SY289: $i] :
            ( ~ ( empty @ SY289 )
            | ~ ( in @ SV195 @ SY289 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[875]) ).

thf(934,plain,
    ! [SV196: $i] :
      ( ( ! [SY290: $i] :
            ( ( SV196 = SY290 )
            | ~ ( empty @ SV196 )
            | ~ ( empty @ SY290 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[876]) ).

thf(935,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)],[878]) ).

thf(936,plain,
    ! [SV197: $i] :
      ( ( ~ ( ~ ! [SY291: $i,SY292: $i] :
                  ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK9_D @ SY292 @ SY291 @ SV197 ) @ SY292 )
                                | ~ ( in @ ( sK9_D @ SY292 @ SY291 @ SV197 ) @ SV197 ) )
                            | ~ ( ~ ( in @ ( sK9_D @ SY292 @ SY291 @ SV197 ) @ SY292 )
                                | ~ ( in @ ( sK9_D @ SY292 @ SY291 @ SV197 ) @ SY291 ) ) )
                      | ~ ( ( in @ ( sK9_D @ SY292 @ SY291 @ SV197 ) @ SY292 )
                          | ( in @ ( sK9_D @ SY292 @ SY291 @ SV197 ) @ SV197 )
                          | ( in @ ( sK9_D @ SY292 @ SY291 @ SV197 ) @ SY291 ) ) )
                  | ( SY292
                    = ( set_union2 @ SV197 @ SY291 ) ) )
            | ~ ! [SY293: $i,SY294: $i] :
                  ( ( SY294
                   != ( set_union2 @ SV197 @ SY293 ) )
                  | ~ ( ~ ! [SY295: $i] :
                            ( ~ ( in @ SY295 @ SY294 )
                            | ( in @ SY295 @ SV197 )
                            | ( in @ SY295 @ SY293 ) )
                      | ~ ~ ( ~ ! [SY296: $i] :
                                  ( ~ ( in @ SY296 @ SV197 )
                                  | ( in @ SY296 @ SY294 ) )
                            | ~ ! [SX3: $i] :
                                  ( ~ ( in @ SX3 @ SY293 )
                                  | ( in @ SX3 @ SY294 ) ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[879]) ).

thf(937,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)],[880]) ).

thf(938,plain,
    ! [SV198: $i] :
      ( ( ~ ( ~ ! [SY298: $i,SY299: $i] :
                  ( ~ ( ~ ( ~ ( in @ ( sK6_D @ SY299 @ SY298 @ SV198 ) @ SV198 )
                          | ( in @ ( sK6_D @ SY299 @ SY298 @ SV198 ) @ SY298 )
                          | ~ ( in @ ( sK6_D @ SY299 @ SY298 @ SV198 ) @ SY299 ) )
                      | ~ ~ ( ~ ( ( in @ ( sK6_D @ SY299 @ SY298 @ SV198 ) @ SV198 )
                                | ( in @ ( sK6_D @ SY299 @ SY298 @ SV198 ) @ SY299 ) )
                            | ~ ( ~ ( in @ ( sK6_D @ SY299 @ SY298 @ SV198 ) @ SY298 )
                                | ( in @ ( sK6_D @ SY299 @ SY298 @ SV198 ) @ SY299 ) ) ) )
                  | ( SY299
                    = ( set_difference @ SV198 @ SY298 ) ) )
            | ~ ! [SY300: $i,SY301: $i] :
                  ( ( SY301
                   != ( set_difference @ SV198 @ SY300 ) )
                  | ~ ( ~ ! [SY302: $i] :
                            ( ~ ( in @ SY302 @ SV198 )
                            | ( in @ SY302 @ SY300 )
                            | ( in @ SY302 @ SY301 ) )
                      | ~ ~ ( ~ ! [SY303: $i] :
                                  ( ~ ( in @ SY303 @ SY301 )
                                  | ( in @ SY303 @ SV198 ) )
                            | ~ ! [SX3: $i] :
                                  ( ~ ( in @ SX3 @ SY301 )
                                  | ~ ( in @ SX3 @ SY300 ) ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[881]) ).

thf(939,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( disjoint @ SX0 @ SX1 )
            | ( in @ ( sK13_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)],[882]) ).

thf(940,plain,
    ( ( ~ ! [SX0: $i] :
            ( ( in @ ( sK11_B @ SX0 ) @ SX0 )
            | ( SX0 = empty_set ) )
      | ~ ! [SX0: $i] :
            ( ( SX0 != empty_set )
            | ! [SX1: $i] :
                ~ ( in @ SX1 @ SX0 ) ) )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[883]) ).

thf(941,plain,
    ! [SV199: $i] :
      ( ( ! [SY305: $i] :
            ( ~ ( ~ ( ~ ( in @ ( sK3_C @ SY305 @ SV199 ) @ SV199 )
                    | ~ ( in @ ( sK3_C @ SY305 @ SV199 ) @ SY305 ) )
                | ~ ( ( in @ ( sK3_C @ SY305 @ SV199 ) @ SV199 )
                    | ( in @ ( sK3_C @ SY305 @ SV199 ) @ SY305 ) ) )
            | ( SV199 = SY305 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[884]) ).

thf(942,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)],[885]) ).

thf(943,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( ~ ( ( ( sK12_C @ SX1 @ SX0 )
                     != SX0 )
                    | ~ ( in @ ( sK12_C @ SX1 @ SX0 ) @ SX1 ) )
                | ~ ( ( ( sK12_C @ SX1 @ SX0 )
                      = SX0 )
                    | ( in @ ( sK12_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)],[886]) ).

thf(944,plain,
    ! [SV200: $i] :
      ( ( ~ ( ~ ! [SY306: $i,SY307: $i] :
                  ( ~ ( ~ ( ~ ( in @ ( sK7_D @ SY307 @ SY306 @ SV200 ) @ SV200 )
                          | ~ ( in @ ( sK7_D @ SY307 @ SY306 @ SV200 ) @ SY306 )
                          | ~ ( in @ ( sK7_D @ SY307 @ SY306 @ SV200 ) @ SY307 ) )
                      | ~ ~ ( ~ ( ( in @ ( sK7_D @ SY307 @ SY306 @ SV200 ) @ SV200 )
                                | ( in @ ( sK7_D @ SY307 @ SY306 @ SV200 ) @ SY307 ) )
                            | ~ ( ( in @ ( sK7_D @ SY307 @ SY306 @ SV200 ) @ SY306 )
                                | ( in @ ( sK7_D @ SY307 @ SY306 @ SV200 ) @ SY307 ) ) ) )
                  | ( SY307
                    = ( set_intersection2 @ SV200 @ SY306 ) ) )
            | ~ ! [SY308: $i,SY309: $i] :
                  ( ( SY309
                   != ( set_intersection2 @ SV200 @ SY308 ) )
                  | ~ ( ~ ! [SY310: $i] :
                            ( ~ ( in @ SY310 @ SV200 )
                            | ~ ( in @ SY310 @ SY308 )
                            | ( in @ SY310 @ SY309 ) )
                      | ~ ~ ( ~ ! [SY311: $i] :
                                  ( ~ ( in @ SY311 @ SY309 )
                                  | ( in @ SY311 @ SV200 ) )
                            | ~ ! [SX3: $i] :
                                  ( ~ ( in @ SX3 @ SY309 )
                                  | ( in @ SX3 @ SY308 ) ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[887]) ).

thf(945,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)],[888]) ).

thf(946,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)],[889]) ).

thf(947,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)],[890]) ).

thf(948,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)],[891]) ).

thf(949,plain,
    ( ( ~ ( in @ sK1_A @ sK2_SY126 )
      | ~ ~ ( subset @ ( singleton @ sK1_A ) @ sK2_SY126 ) )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[892]) ).

thf(950,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( disjoint @ SX0 @ SX1 )
            | ~ ( ~ ( in @ ( sK14_C @ SX1 @ SX0 ) @ SX0 )
                | ~ ( in @ ( sK14_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)],[893]) ).

thf(951,plain,
    ! [SV201: $i] :
      ( ( ~ ( ~ ! [SY313: $i,SY314: $i] :
                  ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK10_D @ SY314 @ SY313 @ SV201 ) @ SY314 )
                                | ( ( sK10_D @ SY314 @ SY313 @ SV201 )
                                 != SV201 ) )
                            | ~ ( ~ ( in @ ( sK10_D @ SY314 @ SY313 @ SV201 ) @ SY314 )
                                | ( ( sK10_D @ SY314 @ SY313 @ SV201 )
                                 != SY313 ) ) )
                      | ~ ( ( in @ ( sK10_D @ SY314 @ SY313 @ SV201 ) @ SY314 )
                          | ( ( sK10_D @ SY314 @ SY313 @ SV201 )
                            = SV201 )
                          | ( ( sK10_D @ SY314 @ SY313 @ SV201 )
                            = SY313 ) ) )
                  | ( SY314
                    = ( unordered_pair @ SV201 @ SY313 ) ) )
            | ~ ! [SY315: $i,SY316: $i] :
                  ( ( SY316
                   != ( unordered_pair @ SV201 @ SY315 ) )
                  | ~ ( ~ ! [SY317: $i] :
                            ( ~ ( in @ SY317 @ SY316 )
                            | ( SY317 = SV201 )
                            | ( SY317 = SY315 ) )
                      | ~ ~ ( ~ ! [SY318: $i] :
                                  ( ( SY318 != SV201 )
                                  | ( in @ SY318 @ SY316 ) )
                            | ~ ! [SX3: $i] :
                                  ( ( SX3 != SY315 )
                                  | ( in @ SX3 @ SY316 ) ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[894]) ).

thf(952,plain,
    ! [SV158: $i] :
      ( ( ( singleton @ SV158 )
        = empty_set )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[895]) ).

thf(953,plain,
    ! [SV202: $i,SV159: $i] :
      ( ( ~ ( subset @ SV159 @ SV202 )
        | ( ( set_union2 @ SV159 @ SV202 )
          = SV202 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[896]) ).

thf(954,plain,
    ! [SV203: $i,SV160: $i] :
      ( ( subset @ ( set_intersection2 @ SV160 @ SV203 ) @ SV160 )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[897]) ).

thf(955,plain,
    ! [SV204: $i,SV161: $i] :
      ( ( ! [SY320: $i] :
            ( ~ ( subset @ SV161 @ SV204 )
            | ~ ( subset @ SV161 @ SY320 )
            | ( subset @ SV161 @ ( set_intersection2 @ SV204 @ SY320 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[898]) ).

thf(956,plain,
    ! [SV205: $i,SV162: $i] :
      ( ( ! [SY321: $i] :
            ( ~ ( subset @ SV162 @ SV205 )
            | ~ ( subset @ SV205 @ SY321 )
            | ( subset @ SV162 @ SY321 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[899]) ).

thf(957,plain,
    ! [SV206: $i,SV163: $i] :
      ( ( ~ ( subset @ SV163 @ SV206 )
        | ! [SY322: $i] : ( subset @ ( set_intersection2 @ SV163 @ SY322 ) @ ( set_intersection2 @ SV206 @ SY322 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[900]) ).

thf(958,plain,
    ! [SV207: $i,SV164: $i] :
      ( ( ~ ( subset @ SV164 @ SV207 )
        | ( ( set_intersection2 @ SV164 @ SV207 )
          = SV164 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[901]) ).

thf(959,plain,
    ! [SV208: $i,SV166: $i] :
      ( ( ~ ( subset @ SV166 @ SV208 )
        | ! [SY323: $i] : ( subset @ ( set_difference @ SV166 @ SY323 ) @ ( set_difference @ SV208 @ SY323 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[903]) ).

thf(960,plain,
    ! [SV209: $i,SV167: $i] :
      ( ( subset @ ( set_difference @ SV167 @ SV209 ) @ SV167 )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[904]) ).

thf(961,plain,
    ! [SV210: $i,SV168: $i] :
      ( ( ( set_union2 @ SV168 @ ( set_difference @ SV210 @ SV168 ) )
        = ( set_union2 @ SV168 @ SV210 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[905]) ).

thf(962,plain,
    ! [SV169: $i] :
      ( ( ( ~ ( subset @ SV169 @ empty_set ) )
        = $true )
      | ( ( SV169 = empty_set )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[906]) ).

thf(963,plain,
    ! [SV211: $i,SV170: $i] :
      ( ( ( set_difference @ ( set_union2 @ SV170 @ SV211 ) @ SV211 )
        = ( set_difference @ SV170 @ SV211 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[907]) ).

thf(964,plain,
    ! [SV212: $i,SV171: $i] :
      ( ( ~ ( subset @ SV171 @ SV212 )
        | ( SV212
          = ( set_union2 @ SV171 @ ( set_difference @ SV212 @ SV171 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[908]) ).

thf(965,plain,
    ! [SV213: $i,SV172: $i] :
      ( ( ( set_difference @ SV172 @ ( set_difference @ SV172 @ SV213 ) )
        = ( set_intersection2 @ SV172 @ SV213 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[909]) ).

thf(966,plain,
    ! [SV173: $i,SV214: $i] :
      ( ( ~ ( proper_subset @ SV214 @ SV173 )
        | ~ ( subset @ SV173 @ SV214 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[910]) ).

thf(967,plain,
    ! [SV174: $i,SV215: $i] :
      ( ( ! [SY324: $i] :
            ( ~ ( disjoint @ SV215 @ SY324 )
            | ~ ( subset @ SV174 @ SV215 )
            | ( disjoint @ SV174 @ SY324 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[911]) ).

thf(968,plain,
    ! [SV216: $i,SV176: $i] :
      ( ( subset @ SV176 @ ( set_union2 @ SV176 @ SV216 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[913]) ).

thf(969,plain,
    ! [SV217: $i,SV177: $i] :
      ( ( ! [SY325: $i] :
            ( ~ ( subset @ SV177 @ SV217 )
            | ~ ( subset @ SY325 @ SV217 )
            | ( subset @ ( set_union2 @ SV177 @ SY325 ) @ SV217 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[914]) ).

thf(970,plain,
    ! [SV218: $i,SV178: $i] :
      ( ( ~ ( in @ SV178 @ SV218 )
        | ~ ( in @ SV218 @ SV178 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[915]) ).

thf(971,plain,
    ! [SV219: $i,SV179: $i] :
      ( ( ~ ( proper_subset @ SV179 @ SV219 )
        | ~ ( proper_subset @ SV219 @ SV179 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[916]) ).

thf(972,plain,
    ! [SV220: $i,SV180: $i] :
      ( ( ( unordered_pair @ SV180 @ SV220 )
        = ( unordered_pair @ SV220 @ SV180 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[917]) ).

thf(973,plain,
    ! [SV221: $i,SV181: $i] :
      ( ( ( set_union2 @ SV181 @ SV221 )
        = ( set_union2 @ SV221 @ SV181 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[918]) ).

thf(974,plain,
    ! [SV222: $i,SV182: $i] :
      ( ( ( set_intersection2 @ SV182 @ SV222 )
        = ( set_intersection2 @ SV222 @ SV182 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[919]) ).

thf(975,plain,
    ! [SV183: $i] :
      ( ( ( empty @ SV183 )
        = $true )
      | ( ( ! [SY286: $i] :
              ~ ( empty @ ( set_union2 @ SV183 @ SY286 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[920]) ).

thf(976,plain,
    ! [SV184: $i] :
      ( ( ( empty @ SV184 )
        = $true )
      | ( ( ! [SY287: $i] :
              ~ ( empty @ ( set_union2 @ SY287 @ SV184 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[921]) ).

thf(977,plain,
    ! [SV187: $i] :
      ( ( proper_subset @ SV187 @ SV187 )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[924]) ).

thf(978,plain,
    ! [SV223: $i,SV189: $i] :
      ( ( ~ ( disjoint @ SV189 @ SV223 )
        | ( disjoint @ SV223 @ SV189 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[927]) ).

thf(979,plain,
    ! [SV194: $i] :
      ( ( ( ~ ( empty @ SV194 ) )
        = $true )
      | ( ( SV194 = empty_set )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[932]) ).

thf(980,plain,
    ! [SV195: $i,SV224: $i] :
      ( ( ~ ( empty @ SV224 )
        | ~ ( in @ SV195 @ SV224 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[933]) ).

thf(981,plain,
    ! [SV225: $i,SV196: $i] :
      ( ( ( SV196 = SV225 )
        | ~ ( empty @ SV196 )
        | ~ ( empty @ SV225 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[934]) ).

thf(982,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( ( set_difference @ SX0 @ SX1 )
             != SX0 )
            | ( disjoint @ SX0 @ SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[935]) ).

thf(983,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( disjoint @ SX0 @ SX1 )
            | ( ( set_difference @ SX0 @ SX1 )
              = SX0 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[935]) ).

thf(984,plain,
    ! [SV197: $i] :
      ( ( ~ ! [SY291: $i,SY292: $i] :
              ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK9_D @ SY292 @ SY291 @ SV197 ) @ SY292 )
                            | ~ ( in @ ( sK9_D @ SY292 @ SY291 @ SV197 ) @ SV197 ) )
                        | ~ ( ~ ( in @ ( sK9_D @ SY292 @ SY291 @ SV197 ) @ SY292 )
                            | ~ ( in @ ( sK9_D @ SY292 @ SY291 @ SV197 ) @ SY291 ) ) )
                  | ~ ( ( in @ ( sK9_D @ SY292 @ SY291 @ SV197 ) @ SY292 )
                      | ( in @ ( sK9_D @ SY292 @ SY291 @ SV197 ) @ SV197 )
                      | ( in @ ( sK9_D @ SY292 @ SY291 @ SV197 ) @ SY291 ) ) )
              | ( SY292
                = ( set_union2 @ SV197 @ SY291 ) ) )
        | ~ ! [SY293: $i,SY294: $i] :
              ( ( SY294
               != ( set_union2 @ SV197 @ SY293 ) )
              | ~ ( ~ ! [SY295: $i] :
                        ( ~ ( in @ SY295 @ SY294 )
                        | ( in @ SY295 @ SV197 )
                        | ( in @ SY295 @ SY293 ) )
                  | ~ ~ ( ~ ! [SY296: $i] :
                              ( ~ ( in @ SY296 @ SV197 )
                              | ( in @ SY296 @ SY294 ) )
                        | ~ ! [SX3: $i] :
                              ( ~ ( in @ SX3 @ SY293 )
                              | ( in @ SX3 @ SY294 ) ) ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[936]) ).

thf(985,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)],[937]) ).

thf(986,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( subset @ SX0 @ SX1 )
            | ! [SX2: $i] :
                ( ~ ( in @ SX2 @ SX0 )
                | ( in @ SX2 @ SX1 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[937]) ).

thf(987,plain,
    ! [SV198: $i] :
      ( ( ~ ! [SY298: $i,SY299: $i] :
              ( ~ ( ~ ( ~ ( in @ ( sK6_D @ SY299 @ SY298 @ SV198 ) @ SV198 )
                      | ( in @ ( sK6_D @ SY299 @ SY298 @ SV198 ) @ SY298 )
                      | ~ ( in @ ( sK6_D @ SY299 @ SY298 @ SV198 ) @ SY299 ) )
                  | ~ ~ ( ~ ( ( in @ ( sK6_D @ SY299 @ SY298 @ SV198 ) @ SV198 )
                            | ( in @ ( sK6_D @ SY299 @ SY298 @ SV198 ) @ SY299 ) )
                        | ~ ( ~ ( in @ ( sK6_D @ SY299 @ SY298 @ SV198 ) @ SY298 )
                            | ( in @ ( sK6_D @ SY299 @ SY298 @ SV198 ) @ SY299 ) ) ) )
              | ( SY299
                = ( set_difference @ SV198 @ SY298 ) ) )
        | ~ ! [SY300: $i,SY301: $i] :
              ( ( SY301
               != ( set_difference @ SV198 @ SY300 ) )
              | ~ ( ~ ! [SY302: $i] :
                        ( ~ ( in @ SY302 @ SV198 )
                        | ( in @ SY302 @ SY300 )
                        | ( in @ SY302 @ SY301 ) )
                  | ~ ~ ( ~ ! [SY303: $i] :
                              ( ~ ( in @ SY303 @ SY301 )
                              | ( in @ SY303 @ SV198 ) )
                        | ~ ! [SX3: $i] :
                              ( ~ ( in @ SX3 @ SY301 )
                              | ~ ( in @ SX3 @ SY300 ) ) ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[938]) ).

thf(988,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( disjoint @ SX0 @ SX1 )
            | ( in @ ( sK13_C @ SX1 @ SX0 ) @ ( set_intersection2 @ SX0 @ SX1 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[939]) ).

thf(989,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ! [SX2: $i] :
                ~ ( in @ SX2 @ ( set_intersection2 @ SX0 @ SX1 ) )
            | ~ ( disjoint @ SX0 @ SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[939]) ).

thf(990,plain,
    ( ( ~ ! [SX0: $i] :
            ( ( in @ ( sK11_B @ SX0 ) @ SX0 )
            | ( SX0 = empty_set ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[940]) ).

thf(991,plain,
    ( ( ~ ! [SX0: $i] :
            ( ( SX0 != empty_set )
            | ! [SX1: $i] :
                ~ ( in @ SX1 @ SX0 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[940]) ).

thf(992,plain,
    ! [SV199: $i,SV226: $i] :
      ( ( ~ ( ~ ( ~ ( in @ ( sK3_C @ SV226 @ SV199 ) @ SV199 )
                | ~ ( in @ ( sK3_C @ SV226 @ SV199 ) @ SV226 ) )
            | ~ ( ( in @ ( sK3_C @ SV226 @ SV199 ) @ SV199 )
                | ( in @ ( sK3_C @ SV226 @ SV199 ) @ SV226 ) ) )
        | ( SV199 = SV226 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[941]) ).

thf(993,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( SX0 = SX1 )
            | ~ ( subset @ SX0 @ SX1 )
            | ( proper_subset @ SX0 @ SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[942]) ).

thf(994,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)],[942]) ).

thf(995,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( ~ ( ( ( sK12_C @ SX1 @ SX0 )
                     != SX0 )
                    | ~ ( in @ ( sK12_C @ SX1 @ SX0 ) @ SX1 ) )
                | ~ ( ( ( sK12_C @ SX1 @ SX0 )
                      = SX0 )
                    | ( in @ ( sK12_C @ SX1 @ SX0 ) @ SX1 ) ) )
            | ( SX1
              = ( singleton @ SX0 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[943]) ).

thf(996,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)],[943]) ).

thf(997,plain,
    ! [SV200: $i] :
      ( ( ~ ! [SY306: $i,SY307: $i] :
              ( ~ ( ~ ( ~ ( in @ ( sK7_D @ SY307 @ SY306 @ SV200 ) @ SV200 )
                      | ~ ( in @ ( sK7_D @ SY307 @ SY306 @ SV200 ) @ SY306 )
                      | ~ ( in @ ( sK7_D @ SY307 @ SY306 @ SV200 ) @ SY307 ) )
                  | ~ ~ ( ~ ( ( in @ ( sK7_D @ SY307 @ SY306 @ SV200 ) @ SV200 )
                            | ( in @ ( sK7_D @ SY307 @ SY306 @ SV200 ) @ SY307 ) )
                        | ~ ( ( in @ ( sK7_D @ SY307 @ SY306 @ SV200 ) @ SY306 )
                            | ( in @ ( sK7_D @ SY307 @ SY306 @ SV200 ) @ SY307 ) ) ) )
              | ( SY307
                = ( set_intersection2 @ SV200 @ SY306 ) ) )
        | ~ ! [SY308: $i,SY309: $i] :
              ( ( SY309
               != ( set_intersection2 @ SV200 @ SY308 ) )
              | ~ ( ~ ! [SY310: $i] :
                        ( ~ ( in @ SY310 @ SV200 )
                        | ~ ( in @ SY310 @ SY308 )
                        | ( in @ SY310 @ SY309 ) )
                  | ~ ~ ( ~ ! [SY311: $i] :
                              ( ~ ( in @ SY311 @ SY309 )
                              | ( in @ SY311 @ SV200 ) )
                        | ~ ! [SX3: $i] :
                              ( ~ ( in @ SX3 @ SY309 )
                              | ( in @ SX3 @ SY308 ) ) ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[944]) ).

thf(998,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( subset @ SX0 @ SX1 )
            | ~ ( subset @ SX1 @ SX0 )
            | ( SX0 = SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[945]) ).

thf(999,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)],[945]) ).

thf(1000,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( ( set_difference @ SX0 @ SX1 )
             != empty_set )
            | ( subset @ SX0 @ SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[946]) ).

thf(1001,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( subset @ SX0 @ SX1 )
            | ( ( set_difference @ SX0 @ SX1 )
              = empty_set ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[946]) ).

thf(1002,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( ( set_intersection2 @ SX0 @ SX1 )
             != empty_set )
            | ( disjoint @ SX0 @ SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[947]) ).

thf(1003,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( disjoint @ SX0 @ SX1 )
            | ( ( set_intersection2 @ SX0 @ SX1 )
              = empty_set ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[947]) ).

thf(1004,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( ( set_difference @ SX0 @ SX1 )
             != empty_set )
            | ( subset @ SX0 @ SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[948]) ).

thf(1005,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( subset @ SX0 @ SX1 )
            | ( ( set_difference @ SX0 @ SX1 )
              = empty_set ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[948]) ).

thf(1006,plain,
    ( ( ~ ( in @ sK1_A @ sK2_SY126 ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[949]) ).

thf(1007,plain,
    ( ( ~ ~ ( subset @ ( singleton @ sK1_A ) @ sK2_SY126 ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[949]) ).

thf(1008,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( disjoint @ SX0 @ SX1 )
            | ~ ( ~ ( in @ ( sK14_C @ SX1 @ SX0 ) @ SX0 )
                | ~ ( in @ ( sK14_C @ SX1 @ SX0 ) @ SX1 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[950]) ).

thf(1009,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ! [SX2: $i] :
                ( ~ ( in @ SX2 @ SX0 )
                | ~ ( in @ SX2 @ SX1 ) )
            | ~ ( disjoint @ SX0 @ SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[950]) ).

thf(1010,plain,
    ! [SV201: $i] :
      ( ( ~ ! [SY313: $i,SY314: $i] :
              ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK10_D @ SY314 @ SY313 @ SV201 ) @ SY314 )
                            | ( ( sK10_D @ SY314 @ SY313 @ SV201 )
                             != SV201 ) )
                        | ~ ( ~ ( in @ ( sK10_D @ SY314 @ SY313 @ SV201 ) @ SY314 )
                            | ( ( sK10_D @ SY314 @ SY313 @ SV201 )
                             != SY313 ) ) )
                  | ~ ( ( in @ ( sK10_D @ SY314 @ SY313 @ SV201 ) @ SY314 )
                      | ( ( sK10_D @ SY314 @ SY313 @ SV201 )
                        = SV201 )
                      | ( ( sK10_D @ SY314 @ SY313 @ SV201 )
                        = SY313 ) ) )
              | ( SY314
                = ( unordered_pair @ SV201 @ SY313 ) ) )
        | ~ ! [SY315: $i,SY316: $i] :
              ( ( SY316
               != ( unordered_pair @ SV201 @ SY315 ) )
              | ~ ( ~ ! [SY317: $i] :
                        ( ~ ( in @ SY317 @ SY316 )
                        | ( SY317 = SV201 )
                        | ( SY317 = SY315 ) )
                  | ~ ~ ( ~ ! [SY318: $i] :
                              ( ( SY318 != SV201 )
                              | ( in @ SY318 @ SY316 ) )
                        | ~ ! [SX3: $i] :
                              ( ( SX3 != SY315 )
                              | ( in @ SX3 @ SY316 ) ) ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[951]) ).

thf(1011,plain,
    ! [SV202: $i,SV159: $i] :
      ( ( ( ~ ( subset @ SV159 @ SV202 ) )
        = $true )
      | ( ( ( set_union2 @ SV159 @ SV202 )
          = SV202 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[953]) ).

thf(1012,plain,
    ! [SV227: $i,SV204: $i,SV161: $i] :
      ( ( ~ ( subset @ SV161 @ SV204 )
        | ~ ( subset @ SV161 @ SV227 )
        | ( subset @ SV161 @ ( set_intersection2 @ SV204 @ SV227 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[955]) ).

thf(1013,plain,
    ! [SV228: $i,SV205: $i,SV162: $i] :
      ( ( ~ ( subset @ SV162 @ SV205 )
        | ~ ( subset @ SV205 @ SV228 )
        | ( subset @ SV162 @ SV228 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[956]) ).

thf(1014,plain,
    ! [SV206: $i,SV163: $i] :
      ( ( ( ~ ( subset @ SV163 @ SV206 ) )
        = $true )
      | ( ( ! [SY322: $i] : ( subset @ ( set_intersection2 @ SV163 @ SY322 ) @ ( set_intersection2 @ SV206 @ SY322 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[957]) ).

thf(1015,plain,
    ! [SV207: $i,SV164: $i] :
      ( ( ( ~ ( subset @ SV164 @ SV207 ) )
        = $true )
      | ( ( ( set_intersection2 @ SV164 @ SV207 )
          = SV164 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[958]) ).

thf(1016,plain,
    ! [SV208: $i,SV166: $i] :
      ( ( ( ~ ( subset @ SV166 @ SV208 ) )
        = $true )
      | ( ( ! [SY323: $i] : ( subset @ ( set_difference @ SV166 @ SY323 ) @ ( set_difference @ SV208 @ SY323 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[959]) ).

thf(1017,plain,
    ! [SV169: $i] :
      ( ( ( subset @ SV169 @ empty_set )
        = $false )
      | ( ( SV169 = empty_set )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[962]) ).

thf(1018,plain,
    ! [SV212: $i,SV171: $i] :
      ( ( ( ~ ( subset @ SV171 @ SV212 ) )
        = $true )
      | ( ( SV212
          = ( set_union2 @ SV171 @ ( set_difference @ SV212 @ SV171 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[964]) ).

thf(1019,plain,
    ! [SV173: $i,SV214: $i] :
      ( ( ( ~ ( proper_subset @ SV214 @ SV173 ) )
        = $true )
      | ( ( ~ ( subset @ SV173 @ SV214 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[966]) ).

thf(1020,plain,
    ! [SV174: $i,SV229: $i,SV215: $i] :
      ( ( ~ ( disjoint @ SV215 @ SV229 )
        | ~ ( subset @ SV174 @ SV215 )
        | ( disjoint @ SV174 @ SV229 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[967]) ).

thf(1021,plain,
    ! [SV230: $i,SV217: $i,SV177: $i] :
      ( ( ~ ( subset @ SV177 @ SV217 )
        | ~ ( subset @ SV230 @ SV217 )
        | ( subset @ ( set_union2 @ SV177 @ SV230 ) @ SV217 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[969]) ).

thf(1022,plain,
    ! [SV218: $i,SV178: $i] :
      ( ( ( ~ ( in @ SV178 @ SV218 ) )
        = $true )
      | ( ( ~ ( in @ SV218 @ SV178 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[970]) ).

thf(1023,plain,
    ! [SV219: $i,SV179: $i] :
      ( ( ( ~ ( proper_subset @ SV179 @ SV219 ) )
        = $true )
      | ( ( ~ ( proper_subset @ SV219 @ SV179 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[971]) ).

thf(1024,plain,
    ! [SV231: $i,SV183: $i] :
      ( ( ( ~ ( empty @ ( set_union2 @ SV183 @ SV231 ) ) )
        = $true )
      | ( ( empty @ SV183 )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[975]) ).

thf(1025,plain,
    ! [SV184: $i,SV232: $i] :
      ( ( ( ~ ( empty @ ( set_union2 @ SV232 @ SV184 ) ) )
        = $true )
      | ( ( empty @ SV184 )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[976]) ).

thf(1026,plain,
    ! [SV223: $i,SV189: $i] :
      ( ( ( ~ ( disjoint @ SV189 @ SV223 ) )
        = $true )
      | ( ( disjoint @ SV223 @ SV189 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[978]) ).

thf(1027,plain,
    ! [SV194: $i] :
      ( ( ( empty @ SV194 )
        = $false )
      | ( ( SV194 = empty_set )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[979]) ).

thf(1028,plain,
    ! [SV195: $i,SV224: $i] :
      ( ( ( ~ ( empty @ SV224 ) )
        = $true )
      | ( ( ~ ( in @ SV195 @ SV224 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[980]) ).

thf(1029,plain,
    ! [SV225: $i,SV196: $i] :
      ( ( ( ( SV196 = SV225 )
          | ~ ( empty @ SV196 ) )
        = $true )
      | ( ( ~ ( empty @ SV225 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[981]) ).

thf(1030,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ( ( set_difference @ SX0 @ SX1 )
           != SX0 )
          | ( disjoint @ SX0 @ SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[982]) ).

thf(1031,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( disjoint @ SX0 @ SX1 )
          | ( ( set_difference @ SX0 @ SX1 )
            = SX0 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[983]) ).

thf(1032,plain,
    ! [SV197: $i] :
      ( ( ~ ! [SY291: $i,SY292: $i] :
              ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK9_D @ SY292 @ SY291 @ SV197 ) @ SY292 )
                            | ~ ( in @ ( sK9_D @ SY292 @ SY291 @ SV197 ) @ SV197 ) )
                        | ~ ( ~ ( in @ ( sK9_D @ SY292 @ SY291 @ SV197 ) @ SY292 )
                            | ~ ( in @ ( sK9_D @ SY292 @ SY291 @ SV197 ) @ SY291 ) ) )
                  | ~ ( ( in @ ( sK9_D @ SY292 @ SY291 @ SV197 ) @ SY292 )
                      | ( in @ ( sK9_D @ SY292 @ SY291 @ SV197 ) @ SV197 )
                      | ( in @ ( sK9_D @ SY292 @ SY291 @ SV197 ) @ SY291 ) ) )
              | ( SY292
                = ( set_union2 @ SV197 @ SY291 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[984]) ).

thf(1033,plain,
    ! [SV197: $i] :
      ( ( ~ ! [SY293: $i,SY294: $i] :
              ( ( SY294
               != ( set_union2 @ SV197 @ SY293 ) )
              | ~ ( ~ ! [SY295: $i] :
                        ( ~ ( in @ SY295 @ SY294 )
                        | ( in @ SY295 @ SV197 )
                        | ( in @ SY295 @ SY293 ) )
                  | ~ ~ ( ~ ! [SY296: $i] :
                              ( ~ ( in @ SY296 @ SV197 )
                              | ( in @ SY296 @ SY294 ) )
                        | ~ ! [SX3: $i] :
                              ( ~ ( in @ SX3 @ SY293 )
                              | ( in @ SX3 @ SY294 ) ) ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[984]) ).

thf(1034,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)],[985]) ).

thf(1035,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( subset @ SX0 @ SX1 )
          | ! [SX2: $i] :
              ( ~ ( in @ SX2 @ SX0 )
              | ( in @ SX2 @ SX1 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[986]) ).

thf(1036,plain,
    ! [SV198: $i] :
      ( ( ~ ! [SY298: $i,SY299: $i] :
              ( ~ ( ~ ( ~ ( in @ ( sK6_D @ SY299 @ SY298 @ SV198 ) @ SV198 )
                      | ( in @ ( sK6_D @ SY299 @ SY298 @ SV198 ) @ SY298 )
                      | ~ ( in @ ( sK6_D @ SY299 @ SY298 @ SV198 ) @ SY299 ) )
                  | ~ ~ ( ~ ( ( in @ ( sK6_D @ SY299 @ SY298 @ SV198 ) @ SV198 )
                            | ( in @ ( sK6_D @ SY299 @ SY298 @ SV198 ) @ SY299 ) )
                        | ~ ( ~ ( in @ ( sK6_D @ SY299 @ SY298 @ SV198 ) @ SY298 )
                            | ( in @ ( sK6_D @ SY299 @ SY298 @ SV198 ) @ SY299 ) ) ) )
              | ( SY299
                = ( set_difference @ SV198 @ SY298 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[987]) ).

thf(1037,plain,
    ! [SV198: $i] :
      ( ( ~ ! [SY300: $i,SY301: $i] :
              ( ( SY301
               != ( set_difference @ SV198 @ SY300 ) )
              | ~ ( ~ ! [SY302: $i] :
                        ( ~ ( in @ SY302 @ SV198 )
                        | ( in @ SY302 @ SY300 )
                        | ( in @ SY302 @ SY301 ) )
                  | ~ ~ ( ~ ! [SY303: $i] :
                              ( ~ ( in @ SY303 @ SY301 )
                              | ( in @ SY303 @ SV198 ) )
                        | ~ ! [SX3: $i] :
                              ( ~ ( in @ SX3 @ SY301 )
                              | ~ ( in @ SX3 @ SY300 ) ) ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[987]) ).

thf(1038,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ( disjoint @ SX0 @ SX1 )
          | ( in @ ( sK13_C @ SX1 @ SX0 ) @ ( set_intersection2 @ SX0 @ SX1 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[988]) ).

thf(1039,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ! [SX2: $i] :
              ~ ( in @ SX2 @ ( set_intersection2 @ SX0 @ SX1 ) )
          | ~ ( disjoint @ SX0 @ SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[989]) ).

thf(1040,plain,
    ( ( ! [SX0: $i] :
          ( ( in @ ( sK11_B @ SX0 ) @ SX0 )
          | ( SX0 = empty_set ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[990]) ).

thf(1041,plain,
    ( ( ! [SX0: $i] :
          ( ( SX0 != empty_set )
          | ! [SX1: $i] :
              ~ ( in @ SX1 @ SX0 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[991]) ).

thf(1042,plain,
    ! [SV199: $i,SV226: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ ( sK3_C @ SV226 @ SV199 ) @ SV199 )
                  | ~ ( in @ ( sK3_C @ SV226 @ SV199 ) @ SV226 ) )
              | ~ ( ( in @ ( sK3_C @ SV226 @ SV199 ) @ SV199 )
                  | ( in @ ( sK3_C @ SV226 @ SV199 ) @ SV226 ) ) ) )
        = $true )
      | ( ( SV199 = SV226 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[992]) ).

thf(1043,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ( SX0 = SX1 )
          | ~ ( subset @ SX0 @ SX1 )
          | ( proper_subset @ SX0 @ SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[993]) ).

thf(1044,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)],[994]) ).

thf(1045,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( ~ ( ( ( sK12_C @ SX1 @ SX0 )
                   != SX0 )
                  | ~ ( in @ ( sK12_C @ SX1 @ SX0 ) @ SX1 ) )
              | ~ ( ( ( sK12_C @ SX1 @ SX0 )
                    = SX0 )
                  | ( in @ ( sK12_C @ SX1 @ SX0 ) @ SX1 ) ) )
          | ( SX1
            = ( singleton @ SX0 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[995]) ).

thf(1046,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)],[996]) ).

thf(1047,plain,
    ! [SV200: $i] :
      ( ( ~ ! [SY306: $i,SY307: $i] :
              ( ~ ( ~ ( ~ ( in @ ( sK7_D @ SY307 @ SY306 @ SV200 ) @ SV200 )
                      | ~ ( in @ ( sK7_D @ SY307 @ SY306 @ SV200 ) @ SY306 )
                      | ~ ( in @ ( sK7_D @ SY307 @ SY306 @ SV200 ) @ SY307 ) )
                  | ~ ~ ( ~ ( ( in @ ( sK7_D @ SY307 @ SY306 @ SV200 ) @ SV200 )
                            | ( in @ ( sK7_D @ SY307 @ SY306 @ SV200 ) @ SY307 ) )
                        | ~ ( ( in @ ( sK7_D @ SY307 @ SY306 @ SV200 ) @ SY306 )
                            | ( in @ ( sK7_D @ SY307 @ SY306 @ SV200 ) @ SY307 ) ) ) )
              | ( SY307
                = ( set_intersection2 @ SV200 @ SY306 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[997]) ).

thf(1048,plain,
    ! [SV200: $i] :
      ( ( ~ ! [SY308: $i,SY309: $i] :
              ( ( SY309
               != ( set_intersection2 @ SV200 @ SY308 ) )
              | ~ ( ~ ! [SY310: $i] :
                        ( ~ ( in @ SY310 @ SV200 )
                        | ~ ( in @ SY310 @ SY308 )
                        | ( in @ SY310 @ SY309 ) )
                  | ~ ~ ( ~ ! [SY311: $i] :
                              ( ~ ( in @ SY311 @ SY309 )
                              | ( in @ SY311 @ SV200 ) )
                        | ~ ! [SX3: $i] :
                              ( ~ ( in @ SX3 @ SY309 )
                              | ( in @ SX3 @ SY308 ) ) ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[997]) ).

thf(1049,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( subset @ SX0 @ SX1 )
          | ~ ( subset @ SX1 @ SX0 )
          | ( SX0 = SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[998]) ).

thf(1050,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)],[999]) ).

thf(1051,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ( ( set_difference @ SX0 @ SX1 )
           != empty_set )
          | ( subset @ SX0 @ SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[1000]) ).

thf(1052,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( subset @ SX0 @ SX1 )
          | ( ( set_difference @ SX0 @ SX1 )
            = empty_set ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[1001]) ).

thf(1053,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ( ( set_intersection2 @ SX0 @ SX1 )
           != empty_set )
          | ( disjoint @ SX0 @ SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[1002]) ).

thf(1054,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( disjoint @ SX0 @ SX1 )
          | ( ( set_intersection2 @ SX0 @ SX1 )
            = empty_set ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[1003]) ).

thf(1055,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ( ( set_difference @ SX0 @ SX1 )
           != empty_set )
          | ( subset @ SX0 @ SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[1004]) ).

thf(1056,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( subset @ SX0 @ SX1 )
          | ( ( set_difference @ SX0 @ SX1 )
            = empty_set ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[1005]) ).

thf(1057,plain,
    ( ( in @ sK1_A @ sK2_SY126 )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[1006]) ).

thf(1058,plain,
    ( ( ~ ( subset @ ( singleton @ sK1_A ) @ sK2_SY126 ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[1007]) ).

thf(1059,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ( disjoint @ SX0 @ SX1 )
          | ~ ( ~ ( in @ ( sK14_C @ SX1 @ SX0 ) @ SX0 )
              | ~ ( in @ ( sK14_C @ SX1 @ SX0 ) @ SX1 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[1008]) ).

thf(1060,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ! [SX2: $i] :
              ( ~ ( in @ SX2 @ SX0 )
              | ~ ( in @ SX2 @ SX1 ) )
          | ~ ( disjoint @ SX0 @ SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[1009]) ).

thf(1061,plain,
    ! [SV201: $i] :
      ( ( ~ ! [SY313: $i,SY314: $i] :
              ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK10_D @ SY314 @ SY313 @ SV201 ) @ SY314 )
                            | ( ( sK10_D @ SY314 @ SY313 @ SV201 )
                             != SV201 ) )
                        | ~ ( ~ ( in @ ( sK10_D @ SY314 @ SY313 @ SV201 ) @ SY314 )
                            | ( ( sK10_D @ SY314 @ SY313 @ SV201 )
                             != SY313 ) ) )
                  | ~ ( ( in @ ( sK10_D @ SY314 @ SY313 @ SV201 ) @ SY314 )
                      | ( ( sK10_D @ SY314 @ SY313 @ SV201 )
                        = SV201 )
                      | ( ( sK10_D @ SY314 @ SY313 @ SV201 )
                        = SY313 ) ) )
              | ( SY314
                = ( unordered_pair @ SV201 @ SY313 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[1010]) ).

thf(1062,plain,
    ! [SV201: $i] :
      ( ( ~ ! [SY315: $i,SY316: $i] :
              ( ( SY316
               != ( unordered_pair @ SV201 @ SY315 ) )
              | ~ ( ~ ! [SY317: $i] :
                        ( ~ ( in @ SY317 @ SY316 )
                        | ( SY317 = SV201 )
                        | ( SY317 = SY315 ) )
                  | ~ ~ ( ~ ! [SY318: $i] :
                              ( ( SY318 != SV201 )
                              | ( in @ SY318 @ SY316 ) )
                        | ~ ! [SX3: $i] :
                              ( ( SX3 != SY315 )
                              | ( in @ SX3 @ SY316 ) ) ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[1010]) ).

thf(1063,plain,
    ! [SV202: $i,SV159: $i] :
      ( ( ( subset @ SV159 @ SV202 )
        = $false )
      | ( ( ( set_union2 @ SV159 @ SV202 )
          = SV202 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1011]) ).

thf(1064,plain,
    ! [SV227: $i,SV204: $i,SV161: $i] :
      ( ( ( ~ ( subset @ SV161 @ SV204 )
          | ~ ( subset @ SV161 @ SV227 ) )
        = $true )
      | ( ( subset @ SV161 @ ( set_intersection2 @ SV204 @ SV227 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1012]) ).

thf(1065,plain,
    ! [SV228: $i,SV205: $i,SV162: $i] :
      ( ( ( ~ ( subset @ SV162 @ SV205 )
          | ~ ( subset @ SV205 @ SV228 ) )
        = $true )
      | ( ( subset @ SV162 @ SV228 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1013]) ).

thf(1066,plain,
    ! [SV206: $i,SV163: $i] :
      ( ( ( subset @ SV163 @ SV206 )
        = $false )
      | ( ( ! [SY322: $i] : ( subset @ ( set_intersection2 @ SV163 @ SY322 ) @ ( set_intersection2 @ SV206 @ SY322 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1014]) ).

thf(1067,plain,
    ! [SV207: $i,SV164: $i] :
      ( ( ( subset @ SV164 @ SV207 )
        = $false )
      | ( ( ( set_intersection2 @ SV164 @ SV207 )
          = SV164 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1015]) ).

thf(1068,plain,
    ! [SV208: $i,SV166: $i] :
      ( ( ( subset @ SV166 @ SV208 )
        = $false )
      | ( ( ! [SY323: $i] : ( subset @ ( set_difference @ SV166 @ SY323 ) @ ( set_difference @ SV208 @ SY323 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1016]) ).

thf(1069,plain,
    ! [SV212: $i,SV171: $i] :
      ( ( ( subset @ SV171 @ SV212 )
        = $false )
      | ( ( SV212
          = ( set_union2 @ SV171 @ ( set_difference @ SV212 @ SV171 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1018]) ).

thf(1070,plain,
    ! [SV173: $i,SV214: $i] :
      ( ( ( proper_subset @ SV214 @ SV173 )
        = $false )
      | ( ( ~ ( subset @ SV173 @ SV214 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1019]) ).

thf(1071,plain,
    ! [SV174: $i,SV229: $i,SV215: $i] :
      ( ( ( ~ ( disjoint @ SV215 @ SV229 )
          | ~ ( subset @ SV174 @ SV215 ) )
        = $true )
      | ( ( disjoint @ SV174 @ SV229 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1020]) ).

thf(1072,plain,
    ! [SV230: $i,SV217: $i,SV177: $i] :
      ( ( ( ~ ( subset @ SV177 @ SV217 )
          | ~ ( subset @ SV230 @ SV217 ) )
        = $true )
      | ( ( subset @ ( set_union2 @ SV177 @ SV230 ) @ SV217 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1021]) ).

thf(1073,plain,
    ! [SV218: $i,SV178: $i] :
      ( ( ( in @ SV178 @ SV218 )
        = $false )
      | ( ( ~ ( in @ SV218 @ SV178 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1022]) ).

thf(1074,plain,
    ! [SV219: $i,SV179: $i] :
      ( ( ( proper_subset @ SV179 @ SV219 )
        = $false )
      | ( ( ~ ( proper_subset @ SV219 @ SV179 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1023]) ).

thf(1075,plain,
    ! [SV231: $i,SV183: $i] :
      ( ( ( empty @ ( set_union2 @ SV183 @ SV231 ) )
        = $false )
      | ( ( empty @ SV183 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1024]) ).

thf(1076,plain,
    ! [SV184: $i,SV232: $i] :
      ( ( ( empty @ ( set_union2 @ SV232 @ SV184 ) )
        = $false )
      | ( ( empty @ SV184 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1025]) ).

thf(1077,plain,
    ! [SV223: $i,SV189: $i] :
      ( ( ( disjoint @ SV189 @ SV223 )
        = $false )
      | ( ( disjoint @ SV223 @ SV189 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1026]) ).

thf(1078,plain,
    ! [SV195: $i,SV224: $i] :
      ( ( ( empty @ SV224 )
        = $false )
      | ( ( ~ ( in @ SV195 @ SV224 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1028]) ).

thf(1079,plain,
    ! [SV225: $i,SV196: $i] :
      ( ( ( SV196 = SV225 )
        = $true )
      | ( ( ~ ( empty @ SV196 ) )
        = $true )
      | ( ( ~ ( empty @ SV225 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1029]) ).

thf(1080,plain,
    ! [SV233: $i] :
      ( ( ! [SY326: $i] :
            ( ( ( set_difference @ SV233 @ SY326 )
             != SV233 )
            | ( disjoint @ SV233 @ SY326 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1030]) ).

thf(1081,plain,
    ! [SV234: $i] :
      ( ( ! [SY327: $i] :
            ( ~ ( disjoint @ SV234 @ SY327 )
            | ( ( set_difference @ SV234 @ SY327 )
              = SV234 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1031]) ).

thf(1082,plain,
    ! [SV197: $i] :
      ( ( ! [SY291: $i,SY292: $i] :
            ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK9_D @ SY292 @ SY291 @ SV197 ) @ SY292 )
                          | ~ ( in @ ( sK9_D @ SY292 @ SY291 @ SV197 ) @ SV197 ) )
                      | ~ ( ~ ( in @ ( sK9_D @ SY292 @ SY291 @ SV197 ) @ SY292 )
                          | ~ ( in @ ( sK9_D @ SY292 @ SY291 @ SV197 ) @ SY291 ) ) )
                | ~ ( ( in @ ( sK9_D @ SY292 @ SY291 @ SV197 ) @ SY292 )
                    | ( in @ ( sK9_D @ SY292 @ SY291 @ SV197 ) @ SV197 )
                    | ( in @ ( sK9_D @ SY292 @ SY291 @ SV197 ) @ SY291 ) ) )
            | ( SY292
              = ( set_union2 @ SV197 @ SY291 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[1032]) ).

thf(1083,plain,
    ! [SV197: $i] :
      ( ( ! [SY293: $i,SY294: $i] :
            ( ( SY294
             != ( set_union2 @ SV197 @ SY293 ) )
            | ~ ( ~ ! [SY295: $i] :
                      ( ~ ( in @ SY295 @ SY294 )
                      | ( in @ SY295 @ SV197 )
                      | ( in @ SY295 @ SY293 ) )
                | ~ ~ ( ~ ! [SY296: $i] :
                            ( ~ ( in @ SY296 @ SV197 )
                            | ( in @ SY296 @ SY294 ) )
                      | ~ ! [SX3: $i] :
                            ( ~ ( in @ SX3 @ SY293 )
                            | ( in @ SX3 @ SY294 ) ) ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[1033]) ).

thf(1084,plain,
    ! [SV235: $i] :
      ( ( ! [SY328: $i] :
            ( ~ ( ~ ( in @ ( sK8_C @ SY328 @ SV235 ) @ SV235 )
                | ~ ~ ( in @ ( sK8_C @ SY328 @ SV235 ) @ SY328 ) )
            | ( subset @ SV235 @ SY328 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1034]) ).

thf(1085,plain,
    ! [SV236: $i] :
      ( ( ! [SY329: $i] :
            ( ~ ( subset @ SV236 @ SY329 )
            | ! [SY330: $i] :
                ( ~ ( in @ SY330 @ SV236 )
                | ( in @ SY330 @ SY329 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1035]) ).

thf(1086,plain,
    ! [SV198: $i] :
      ( ( ! [SY298: $i,SY299: $i] :
            ( ~ ( ~ ( ~ ( in @ ( sK6_D @ SY299 @ SY298 @ SV198 ) @ SV198 )
                    | ( in @ ( sK6_D @ SY299 @ SY298 @ SV198 ) @ SY298 )
                    | ~ ( in @ ( sK6_D @ SY299 @ SY298 @ SV198 ) @ SY299 ) )
                | ~ ~ ( ~ ( ( in @ ( sK6_D @ SY299 @ SY298 @ SV198 ) @ SV198 )
                          | ( in @ ( sK6_D @ SY299 @ SY298 @ SV198 ) @ SY299 ) )
                      | ~ ( ~ ( in @ ( sK6_D @ SY299 @ SY298 @ SV198 ) @ SY298 )
                          | ( in @ ( sK6_D @ SY299 @ SY298 @ SV198 ) @ SY299 ) ) ) )
            | ( SY299
              = ( set_difference @ SV198 @ SY298 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[1036]) ).

thf(1087,plain,
    ! [SV198: $i] :
      ( ( ! [SY300: $i,SY301: $i] :
            ( ( SY301
             != ( set_difference @ SV198 @ SY300 ) )
            | ~ ( ~ ! [SY302: $i] :
                      ( ~ ( in @ SY302 @ SV198 )
                      | ( in @ SY302 @ SY300 )
                      | ( in @ SY302 @ SY301 ) )
                | ~ ~ ( ~ ! [SY303: $i] :
                            ( ~ ( in @ SY303 @ SY301 )
                            | ( in @ SY303 @ SV198 ) )
                      | ~ ! [SX3: $i] :
                            ( ~ ( in @ SX3 @ SY301 )
                            | ~ ( in @ SX3 @ SY300 ) ) ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[1037]) ).

thf(1088,plain,
    ! [SV237: $i] :
      ( ( ! [SY331: $i] :
            ( ( disjoint @ SV237 @ SY331 )
            | ( in @ ( sK13_C @ SY331 @ SV237 ) @ ( set_intersection2 @ SV237 @ SY331 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1038]) ).

thf(1089,plain,
    ! [SV238: $i] :
      ( ( ! [SY332: $i] :
            ( ! [SY333: $i] :
                ~ ( in @ SY333 @ ( set_intersection2 @ SV238 @ SY332 ) )
            | ~ ( disjoint @ SV238 @ SY332 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1039]) ).

thf(1090,plain,
    ! [SV239: $i] :
      ( ( ( in @ ( sK11_B @ SV239 ) @ SV239 )
        | ( SV239 = empty_set ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1040]) ).

thf(1091,plain,
    ! [SV240: $i] :
      ( ( ( SV240 != empty_set )
        | ! [SY334: $i] :
            ~ ( in @ SY334 @ SV240 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1041]) ).

thf(1092,plain,
    ! [SV199: $i,SV226: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK3_C @ SV226 @ SV199 ) @ SV199 )
              | ~ ( in @ ( sK3_C @ SV226 @ SV199 ) @ SV226 ) )
          | ~ ( ( in @ ( sK3_C @ SV226 @ SV199 ) @ SV199 )
              | ( in @ ( sK3_C @ SV226 @ SV199 ) @ SV226 ) ) )
        = $false )
      | ( ( SV199 = SV226 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1042]) ).

thf(1093,plain,
    ! [SV241: $i] :
      ( ( ! [SY335: $i] :
            ( ( SV241 = SY335 )
            | ~ ( subset @ SV241 @ SY335 )
            | ( proper_subset @ SV241 @ SY335 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1043]) ).

thf(1094,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)],[1044]) ).

thf(1095,plain,
    ! [SV242: $i] :
      ( ( ! [SY336: $i] :
            ( ~ ( ~ ( ( ( sK12_C @ SY336 @ SV242 )
                     != SV242 )
                    | ~ ( in @ ( sK12_C @ SY336 @ SV242 ) @ SY336 ) )
                | ~ ( ( ( sK12_C @ SY336 @ SV242 )
                      = SV242 )
                    | ( in @ ( sK12_C @ SY336 @ SV242 ) @ SY336 ) ) )
            | ( SY336
              = ( singleton @ SV242 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1045]) ).

thf(1096,plain,
    ! [SV243: $i] :
      ( ( ! [SY337: $i] :
            ( ( SY337
             != ( singleton @ SV243 ) )
            | ~ ( ~ ! [SY338: $i] :
                      ( ( SY338 != SV243 )
                      | ( in @ SY338 @ SY337 ) )
                | ~ ! [SY339: $i] :
                      ( ~ ( in @ SY339 @ SY337 )
                      | ( SY339 = SV243 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1046]) ).

thf(1097,plain,
    ! [SV200: $i] :
      ( ( ! [SY306: $i,SY307: $i] :
            ( ~ ( ~ ( ~ ( in @ ( sK7_D @ SY307 @ SY306 @ SV200 ) @ SV200 )
                    | ~ ( in @ ( sK7_D @ SY307 @ SY306 @ SV200 ) @ SY306 )
                    | ~ ( in @ ( sK7_D @ SY307 @ SY306 @ SV200 ) @ SY307 ) )
                | ~ ~ ( ~ ( ( in @ ( sK7_D @ SY307 @ SY306 @ SV200 ) @ SV200 )
                          | ( in @ ( sK7_D @ SY307 @ SY306 @ SV200 ) @ SY307 ) )
                      | ~ ( ( in @ ( sK7_D @ SY307 @ SY306 @ SV200 ) @ SY306 )
                          | ( in @ ( sK7_D @ SY307 @ SY306 @ SV200 ) @ SY307 ) ) ) )
            | ( SY307
              = ( set_intersection2 @ SV200 @ SY306 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[1047]) ).

thf(1098,plain,
    ! [SV200: $i] :
      ( ( ! [SY308: $i,SY309: $i] :
            ( ( SY309
             != ( set_intersection2 @ SV200 @ SY308 ) )
            | ~ ( ~ ! [SY310: $i] :
                      ( ~ ( in @ SY310 @ SV200 )
                      | ~ ( in @ SY310 @ SY308 )
                      | ( in @ SY310 @ SY309 ) )
                | ~ ~ ( ~ ! [SY311: $i] :
                            ( ~ ( in @ SY311 @ SY309 )
                            | ( in @ SY311 @ SV200 ) )
                      | ~ ! [SX3: $i] :
                            ( ~ ( in @ SX3 @ SY309 )
                            | ( in @ SX3 @ SY308 ) ) ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[1048]) ).

thf(1099,plain,
    ! [SV244: $i] :
      ( ( ! [SY340: $i] :
            ( ~ ( subset @ SV244 @ SY340 )
            | ~ ( subset @ SY340 @ SV244 )
            | ( SV244 = SY340 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1049]) ).

thf(1100,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)],[1050]) ).

thf(1101,plain,
    ! [SV245: $i] :
      ( ( ! [SY341: $i] :
            ( ( ( set_difference @ SV245 @ SY341 )
             != empty_set )
            | ( subset @ SV245 @ SY341 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1051]) ).

thf(1102,plain,
    ! [SV246: $i] :
      ( ( ! [SY342: $i] :
            ( ~ ( subset @ SV246 @ SY342 )
            | ( ( set_difference @ SV246 @ SY342 )
              = empty_set ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1052]) ).

thf(1103,plain,
    ! [SV247: $i] :
      ( ( ! [SY343: $i] :
            ( ( ( set_intersection2 @ SV247 @ SY343 )
             != empty_set )
            | ( disjoint @ SV247 @ SY343 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1053]) ).

thf(1104,plain,
    ! [SV248: $i] :
      ( ( ! [SY344: $i] :
            ( ~ ( disjoint @ SV248 @ SY344 )
            | ( ( set_intersection2 @ SV248 @ SY344 )
              = empty_set ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1054]) ).

thf(1105,plain,
    ! [SV249: $i] :
      ( ( ! [SY345: $i] :
            ( ( ( set_difference @ SV249 @ SY345 )
             != empty_set )
            | ( subset @ SV249 @ SY345 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1055]) ).

thf(1106,plain,
    ! [SV250: $i] :
      ( ( ! [SY346: $i] :
            ( ~ ( subset @ SV250 @ SY346 )
            | ( ( set_difference @ SV250 @ SY346 )
              = empty_set ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1056]) ).

thf(1107,plain,
    ( ( subset @ ( singleton @ sK1_A ) @ sK2_SY126 )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[1058]) ).

thf(1108,plain,
    ! [SV251: $i] :
      ( ( ! [SY347: $i] :
            ( ( disjoint @ SV251 @ SY347 )
            | ~ ( ~ ( in @ ( sK14_C @ SY347 @ SV251 ) @ SV251 )
                | ~ ( in @ ( sK14_C @ SY347 @ SV251 ) @ SY347 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1059]) ).

thf(1109,plain,
    ! [SV252: $i] :
      ( ( ! [SY348: $i] :
            ( ! [SY349: $i] :
                ( ~ ( in @ SY349 @ SV252 )
                | ~ ( in @ SY349 @ SY348 ) )
            | ~ ( disjoint @ SV252 @ SY348 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1060]) ).

thf(1110,plain,
    ! [SV201: $i] :
      ( ( ! [SY313: $i,SY314: $i] :
            ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK10_D @ SY314 @ SY313 @ SV201 ) @ SY314 )
                          | ( ( sK10_D @ SY314 @ SY313 @ SV201 )
                           != SV201 ) )
                      | ~ ( ~ ( in @ ( sK10_D @ SY314 @ SY313 @ SV201 ) @ SY314 )
                          | ( ( sK10_D @ SY314 @ SY313 @ SV201 )
                           != SY313 ) ) )
                | ~ ( ( in @ ( sK10_D @ SY314 @ SY313 @ SV201 ) @ SY314 )
                    | ( ( sK10_D @ SY314 @ SY313 @ SV201 )
                      = SV201 )
                    | ( ( sK10_D @ SY314 @ SY313 @ SV201 )
                      = SY313 ) ) )
            | ( SY314
              = ( unordered_pair @ SV201 @ SY313 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[1061]) ).

thf(1111,plain,
    ! [SV201: $i] :
      ( ( ! [SY315: $i,SY316: $i] :
            ( ( SY316
             != ( unordered_pair @ SV201 @ SY315 ) )
            | ~ ( ~ ! [SY317: $i] :
                      ( ~ ( in @ SY317 @ SY316 )
                      | ( SY317 = SV201 )
                      | ( SY317 = SY315 ) )
                | ~ ~ ( ~ ! [SY318: $i] :
                            ( ( SY318 != SV201 )
                            | ( in @ SY318 @ SY316 ) )
                      | ~ ! [SX3: $i] :
                            ( ( SX3 != SY315 )
                            | ( in @ SX3 @ SY316 ) ) ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[1062]) ).

thf(1112,plain,
    ! [SV227: $i,SV204: $i,SV161: $i] :
      ( ( ( ~ ( subset @ SV161 @ SV204 ) )
        = $true )
      | ( ( ~ ( subset @ SV161 @ SV227 ) )
        = $true )
      | ( ( subset @ SV161 @ ( set_intersection2 @ SV204 @ SV227 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1064]) ).

thf(1113,plain,
    ! [SV228: $i,SV205: $i,SV162: $i] :
      ( ( ( ~ ( subset @ SV162 @ SV205 ) )
        = $true )
      | ( ( ~ ( subset @ SV205 @ SV228 ) )
        = $true )
      | ( ( subset @ SV162 @ SV228 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1065]) ).

thf(1114,plain,
    ! [SV206: $i,SV253: $i,SV163: $i] :
      ( ( ( subset @ ( set_intersection2 @ SV163 @ SV253 ) @ ( set_intersection2 @ SV206 @ SV253 ) )
        = $true )
      | ( ( subset @ SV163 @ SV206 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1066]) ).

thf(1115,plain,
    ! [SV208: $i,SV254: $i,SV166: $i] :
      ( ( ( subset @ ( set_difference @ SV166 @ SV254 ) @ ( set_difference @ SV208 @ SV254 ) )
        = $true )
      | ( ( subset @ SV166 @ SV208 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1068]) ).

thf(1116,plain,
    ! [SV214: $i,SV173: $i] :
      ( ( ( subset @ SV173 @ SV214 )
        = $false )
      | ( ( proper_subset @ SV214 @ SV173 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1070]) ).

thf(1117,plain,
    ! [SV174: $i,SV229: $i,SV215: $i] :
      ( ( ( ~ ( disjoint @ SV215 @ SV229 ) )
        = $true )
      | ( ( ~ ( subset @ SV174 @ SV215 ) )
        = $true )
      | ( ( disjoint @ SV174 @ SV229 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1071]) ).

thf(1118,plain,
    ! [SV230: $i,SV217: $i,SV177: $i] :
      ( ( ( ~ ( subset @ SV177 @ SV217 ) )
        = $true )
      | ( ( ~ ( subset @ SV230 @ SV217 ) )
        = $true )
      | ( ( subset @ ( set_union2 @ SV177 @ SV230 ) @ SV217 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1072]) ).

thf(1119,plain,
    ! [SV178: $i,SV218: $i] :
      ( ( ( in @ SV218 @ SV178 )
        = $false )
      | ( ( in @ SV178 @ SV218 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1073]) ).

thf(1120,plain,
    ! [SV179: $i,SV219: $i] :
      ( ( ( proper_subset @ SV219 @ SV179 )
        = $false )
      | ( ( proper_subset @ SV179 @ SV219 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1074]) ).

thf(1121,plain,
    ! [SV224: $i,SV195: $i] :
      ( ( ( in @ SV195 @ SV224 )
        = $false )
      | ( ( empty @ SV224 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1078]) ).

thf(1122,plain,
    ! [SV225: $i,SV196: $i] :
      ( ( ( empty @ SV196 )
        = $false )
      | ( ( SV196 = SV225 )
        = $true )
      | ( ( ~ ( empty @ SV225 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1079]) ).

thf(1123,plain,
    ! [SV255: $i,SV233: $i] :
      ( ( ( ( set_difference @ SV233 @ SV255 )
         != SV233 )
        | ( disjoint @ SV233 @ SV255 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1080]) ).

thf(1124,plain,
    ! [SV256: $i,SV234: $i] :
      ( ( ~ ( disjoint @ SV234 @ SV256 )
        | ( ( set_difference @ SV234 @ SV256 )
          = SV234 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1081]) ).

thf(1125,plain,
    ! [SV197: $i,SV257: $i] :
      ( ( ! [SY350: $i] :
            ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK9_D @ SY350 @ SV257 @ SV197 ) @ SY350 )
                          | ~ ( in @ ( sK9_D @ SY350 @ SV257 @ SV197 ) @ SV197 ) )
                      | ~ ( ~ ( in @ ( sK9_D @ SY350 @ SV257 @ SV197 ) @ SY350 )
                          | ~ ( in @ ( sK9_D @ SY350 @ SV257 @ SV197 ) @ SV257 ) ) )
                | ~ ( ( in @ ( sK9_D @ SY350 @ SV257 @ SV197 ) @ SY350 )
                    | ( in @ ( sK9_D @ SY350 @ SV257 @ SV197 ) @ SV197 )
                    | ( in @ ( sK9_D @ SY350 @ SV257 @ SV197 ) @ SV257 ) ) )
            | ( SY350
              = ( set_union2 @ SV197 @ SV257 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1082]) ).

thf(1126,plain,
    ! [SV258: $i,SV197: $i] :
      ( ( ! [SY351: $i] :
            ( ( SY351
             != ( set_union2 @ SV197 @ SV258 ) )
            | ~ ( ~ ! [SY352: $i] :
                      ( ~ ( in @ SY352 @ SY351 )
                      | ( in @ SY352 @ SV197 )
                      | ( in @ SY352 @ SV258 ) )
                | ~ ~ ( ~ ! [SY296: $i] :
                            ( ~ ( in @ SY296 @ SV197 )
                            | ( in @ SY296 @ SY351 ) )
                      | ~ ! [SY354: $i] :
                            ( ~ ( in @ SY354 @ SV258 )
                            | ( in @ SY354 @ SY351 ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1083]) ).

thf(1127,plain,
    ! [SV235: $i,SV259: $i] :
      ( ( ~ ( ~ ( in @ ( sK8_C @ SV259 @ SV235 ) @ SV235 )
            | ~ ~ ( in @ ( sK8_C @ SV259 @ SV235 ) @ SV259 ) )
        | ( subset @ SV235 @ SV259 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1084]) ).

thf(1128,plain,
    ! [SV260: $i,SV236: $i] :
      ( ( ~ ( subset @ SV236 @ SV260 )
        | ! [SY355: $i] :
            ( ~ ( in @ SY355 @ SV236 )
            | ( in @ SY355 @ SV260 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1085]) ).

thf(1129,plain,
    ! [SV198: $i,SV261: $i] :
      ( ( ! [SY356: $i] :
            ( ~ ( ~ ( ~ ( in @ ( sK6_D @ SY356 @ SV261 @ SV198 ) @ SV198 )
                    | ( in @ ( sK6_D @ SY356 @ SV261 @ SV198 ) @ SV261 )
                    | ~ ( in @ ( sK6_D @ SY356 @ SV261 @ SV198 ) @ SY356 ) )
                | ~ ~ ( ~ ( ( in @ ( sK6_D @ SY356 @ SV261 @ SV198 ) @ SV198 )
                          | ( in @ ( sK6_D @ SY356 @ SV261 @ SV198 ) @ SY356 ) )
                      | ~ ( ~ ( in @ ( sK6_D @ SY356 @ SV261 @ SV198 ) @ SV261 )
                          | ( in @ ( sK6_D @ SY356 @ SV261 @ SV198 ) @ SY356 ) ) ) )
            | ( SY356
              = ( set_difference @ SV198 @ SV261 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1086]) ).

thf(1130,plain,
    ! [SV262: $i,SV198: $i] :
      ( ( ! [SY357: $i] :
            ( ( SY357
             != ( set_difference @ SV198 @ SV262 ) )
            | ~ ( ~ ! [SY358: $i] :
                      ( ~ ( in @ SY358 @ SV198 )
                      | ( in @ SY358 @ SV262 )
                      | ( in @ SY358 @ SY357 ) )
                | ~ ~ ( ~ ! [SY303: $i] :
                            ( ~ ( in @ SY303 @ SY357 )
                            | ( in @ SY303 @ SV198 ) )
                      | ~ ! [SY360: $i] :
                            ( ~ ( in @ SY360 @ SY357 )
                            | ~ ( in @ SY360 @ SV262 ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1087]) ).

thf(1131,plain,
    ! [SV263: $i,SV237: $i] :
      ( ( ( disjoint @ SV237 @ SV263 )
        | ( in @ ( sK13_C @ SV263 @ SV237 ) @ ( set_intersection2 @ SV237 @ SV263 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1088]) ).

thf(1132,plain,
    ! [SV264: $i,SV238: $i] :
      ( ( ! [SY361: $i] :
            ~ ( in @ SY361 @ ( set_intersection2 @ SV238 @ SV264 ) )
        | ~ ( disjoint @ SV238 @ SV264 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1089]) ).

thf(1133,plain,
    ! [SV239: $i] :
      ( ( ( in @ ( sK11_B @ SV239 ) @ SV239 )
        = $true )
      | ( ( SV239 = empty_set )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1090]) ).

thf(1134,plain,
    ! [SV240: $i] :
      ( ( ( ( SV240 != empty_set ) )
        = $true )
      | ( ( ! [SY334: $i] :
              ~ ( in @ SY334 @ SV240 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1091]) ).

thf(1135,plain,
    ! [SV199: $i,SV226: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK3_C @ SV226 @ SV199 ) @ SV199 )
              | ~ ( in @ ( sK3_C @ SV226 @ SV199 ) @ SV226 ) ) )
        = $false )
      | ( ( SV199 = SV226 )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1092]) ).

thf(1136,plain,
    ! [SV199: $i,SV226: $i] :
      ( ( ( ~ ( ( in @ ( sK3_C @ SV226 @ SV199 ) @ SV199 )
              | ( in @ ( sK3_C @ SV226 @ SV199 ) @ SV226 ) ) )
        = $false )
      | ( ( SV199 = SV226 )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1092]) ).

thf(1137,plain,
    ! [SV265: $i,SV241: $i] :
      ( ( ( SV241 = SV265 )
        | ~ ( subset @ SV241 @ SV265 )
        | ( proper_subset @ SV241 @ SV265 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1093]) ).

thf(1138,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( proper_subset @ SX0 @ SX1 )
            | ( SX0 != SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[1094]) ).

thf(1139,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( proper_subset @ SX0 @ SX1 )
            | ( subset @ SX0 @ SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[1094]) ).

thf(1140,plain,
    ! [SV242: $i,SV266: $i] :
      ( ( ~ ( ~ ( ( ( sK12_C @ SV266 @ SV242 )
                 != SV242 )
                | ~ ( in @ ( sK12_C @ SV266 @ SV242 ) @ SV266 ) )
            | ~ ( ( ( sK12_C @ SV266 @ SV242 )
                  = SV242 )
                | ( in @ ( sK12_C @ SV266 @ SV242 ) @ SV266 ) ) )
        | ( SV266
          = ( singleton @ SV242 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1095]) ).

thf(1141,plain,
    ! [SV243: $i,SV267: $i] :
      ( ( ( SV267
         != ( singleton @ SV243 ) )
        | ~ ( ~ ! [SY362: $i] :
                  ( ( SY362 != SV243 )
                  | ( in @ SY362 @ SV267 ) )
            | ~ ! [SY363: $i] :
                  ( ~ ( in @ SY363 @ SV267 )
                  | ( SY363 = SV243 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1096]) ).

thf(1142,plain,
    ! [SV200: $i,SV268: $i] :
      ( ( ! [SY364: $i] :
            ( ~ ( ~ ( ~ ( in @ ( sK7_D @ SY364 @ SV268 @ SV200 ) @ SV200 )
                    | ~ ( in @ ( sK7_D @ SY364 @ SV268 @ SV200 ) @ SV268 )
                    | ~ ( in @ ( sK7_D @ SY364 @ SV268 @ SV200 ) @ SY364 ) )
                | ~ ~ ( ~ ( ( in @ ( sK7_D @ SY364 @ SV268 @ SV200 ) @ SV200 )
                          | ( in @ ( sK7_D @ SY364 @ SV268 @ SV200 ) @ SY364 ) )
                      | ~ ( ( in @ ( sK7_D @ SY364 @ SV268 @ SV200 ) @ SV268 )
                          | ( in @ ( sK7_D @ SY364 @ SV268 @ SV200 ) @ SY364 ) ) ) )
            | ( SY364
              = ( set_intersection2 @ SV200 @ SV268 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1097]) ).

thf(1143,plain,
    ! [SV269: $i,SV200: $i] :
      ( ( ! [SY365: $i] :
            ( ( SY365
             != ( set_intersection2 @ SV200 @ SV269 ) )
            | ~ ( ~ ! [SY366: $i] :
                      ( ~ ( in @ SY366 @ SV200 )
                      | ~ ( in @ SY366 @ SV269 )
                      | ( in @ SY366 @ SY365 ) )
                | ~ ~ ( ~ ! [SY311: $i] :
                            ( ~ ( in @ SY311 @ SY365 )
                            | ( in @ SY311 @ SV200 ) )
                      | ~ ! [SY368: $i] :
                            ( ~ ( in @ SY368 @ SY365 )
                            | ( in @ SY368 @ SV269 ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1098]) ).

thf(1144,plain,
    ! [SV270: $i,SV244: $i] :
      ( ( ~ ( subset @ SV244 @ SV270 )
        | ~ ( subset @ SV270 @ SV244 )
        | ( SV244 = SV270 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1099]) ).

thf(1145,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( SX0 != SX1 )
            | ( subset @ SX0 @ SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[1100]) ).

thf(1146,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( SX0 != SX1 )
            | ( subset @ SX1 @ SX0 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[1100]) ).

thf(1147,plain,
    ! [SV271: $i,SV245: $i] :
      ( ( ( ( set_difference @ SV245 @ SV271 )
         != empty_set )
        | ( subset @ SV245 @ SV271 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1101]) ).

thf(1148,plain,
    ! [SV272: $i,SV246: $i] :
      ( ( ~ ( subset @ SV246 @ SV272 )
        | ( ( set_difference @ SV246 @ SV272 )
          = empty_set ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1102]) ).

thf(1149,plain,
    ! [SV273: $i,SV247: $i] :
      ( ( ( ( set_intersection2 @ SV247 @ SV273 )
         != empty_set )
        | ( disjoint @ SV247 @ SV273 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1103]) ).

thf(1150,plain,
    ! [SV274: $i,SV248: $i] :
      ( ( ~ ( disjoint @ SV248 @ SV274 )
        | ( ( set_intersection2 @ SV248 @ SV274 )
          = empty_set ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1104]) ).

thf(1151,plain,
    ! [SV275: $i,SV249: $i] :
      ( ( ( ( set_difference @ SV249 @ SV275 )
         != empty_set )
        | ( subset @ SV249 @ SV275 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1105]) ).

thf(1152,plain,
    ! [SV276: $i,SV250: $i] :
      ( ( ~ ( subset @ SV250 @ SV276 )
        | ( ( set_difference @ SV250 @ SV276 )
          = empty_set ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1106]) ).

thf(1153,plain,
    ! [SV277: $i,SV251: $i] :
      ( ( ( disjoint @ SV251 @ SV277 )
        | ~ ( ~ ( in @ ( sK14_C @ SV277 @ SV251 ) @ SV251 )
            | ~ ( in @ ( sK14_C @ SV277 @ SV251 ) @ SV277 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1108]) ).

thf(1154,plain,
    ! [SV278: $i,SV252: $i] :
      ( ( ! [SY369: $i] :
            ( ~ ( in @ SY369 @ SV252 )
            | ~ ( in @ SY369 @ SV278 ) )
        | ~ ( disjoint @ SV252 @ SV278 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1109]) ).

thf(1155,plain,
    ! [SV201: $i,SV279: $i] :
      ( ( ! [SY370: $i] :
            ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK10_D @ SY370 @ SV279 @ SV201 ) @ SY370 )
                          | ( ( sK10_D @ SY370 @ SV279 @ SV201 )
                           != SV201 ) )
                      | ~ ( ~ ( in @ ( sK10_D @ SY370 @ SV279 @ SV201 ) @ SY370 )
                          | ( ( sK10_D @ SY370 @ SV279 @ SV201 )
                           != SV279 ) ) )
                | ~ ( ( in @ ( sK10_D @ SY370 @ SV279 @ SV201 ) @ SY370 )
                    | ( ( sK10_D @ SY370 @ SV279 @ SV201 )
                      = SV201 )
                    | ( ( sK10_D @ SY370 @ SV279 @ SV201 )
                      = SV279 ) ) )
            | ( SY370
              = ( unordered_pair @ SV201 @ SV279 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1110]) ).

thf(1156,plain,
    ! [SV280: $i,SV201: $i] :
      ( ( ! [SY371: $i] :
            ( ( SY371
             != ( unordered_pair @ SV201 @ SV280 ) )
            | ~ ( ~ ! [SY372: $i] :
                      ( ~ ( in @ SY372 @ SY371 )
                      | ( SY372 = SV201 )
                      | ( SY372 = SV280 ) )
                | ~ ~ ( ~ ! [SY318: $i] :
                            ( ( SY318 != SV201 )
                            | ( in @ SY318 @ SY371 ) )
                      | ~ ! [SY374: $i] :
                            ( ( SY374 != SV280 )
                            | ( in @ SY374 @ SY371 ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1111]) ).

thf(1157,plain,
    ! [SV227: $i,SV204: $i,SV161: $i] :
      ( ( ( subset @ SV161 @ SV204 )
        = $false )
      | ( ( ~ ( subset @ SV161 @ SV227 ) )
        = $true )
      | ( ( subset @ SV161 @ ( set_intersection2 @ SV204 @ SV227 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1112]) ).

thf(1158,plain,
    ! [SV228: $i,SV205: $i,SV162: $i] :
      ( ( ( subset @ SV162 @ SV205 )
        = $false )
      | ( ( ~ ( subset @ SV205 @ SV228 ) )
        = $true )
      | ( ( subset @ SV162 @ SV228 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1113]) ).

thf(1159,plain,
    ! [SV174: $i,SV229: $i,SV215: $i] :
      ( ( ( disjoint @ SV215 @ SV229 )
        = $false )
      | ( ( ~ ( subset @ SV174 @ SV215 ) )
        = $true )
      | ( ( disjoint @ SV174 @ SV229 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1117]) ).

thf(1160,plain,
    ! [SV230: $i,SV217: $i,SV177: $i] :
      ( ( ( subset @ SV177 @ SV217 )
        = $false )
      | ( ( ~ ( subset @ SV230 @ SV217 ) )
        = $true )
      | ( ( subset @ ( set_union2 @ SV177 @ SV230 ) @ SV217 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1118]) ).

thf(1161,plain,
    ! [SV196: $i,SV225: $i] :
      ( ( ( empty @ SV225 )
        = $false )
      | ( ( SV196 = SV225 )
        = $true )
      | ( ( empty @ SV196 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1122]) ).

thf(1162,plain,
    ! [SV255: $i,SV233: $i] :
      ( ( ( ( ( set_difference @ SV233 @ SV255 )
           != SV233 ) )
        = $true )
      | ( ( disjoint @ SV233 @ SV255 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1123]) ).

thf(1163,plain,
    ! [SV256: $i,SV234: $i] :
      ( ( ( ~ ( disjoint @ SV234 @ SV256 ) )
        = $true )
      | ( ( ( set_difference @ SV234 @ SV256 )
          = SV234 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1124]) ).

thf(1164,plain,
    ! [SV197: $i,SV257: $i,SV281: $i] :
      ( ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK9_D @ SV281 @ SV257 @ SV197 ) @ SV281 )
                      | ~ ( in @ ( sK9_D @ SV281 @ SV257 @ SV197 ) @ SV197 ) )
                  | ~ ( ~ ( in @ ( sK9_D @ SV281 @ SV257 @ SV197 ) @ SV281 )
                      | ~ ( in @ ( sK9_D @ SV281 @ SV257 @ SV197 ) @ SV257 ) ) )
            | ~ ( ( in @ ( sK9_D @ SV281 @ SV257 @ SV197 ) @ SV281 )
                | ( in @ ( sK9_D @ SV281 @ SV257 @ SV197 ) @ SV197 )
                | ( in @ ( sK9_D @ SV281 @ SV257 @ SV197 ) @ SV257 ) ) )
        | ( SV281
          = ( set_union2 @ SV197 @ SV257 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1125]) ).

thf(1165,plain,
    ! [SV258: $i,SV197: $i,SV282: $i] :
      ( ( ( SV282
         != ( set_union2 @ SV197 @ SV258 ) )
        | ~ ( ~ ! [SY375: $i] :
                  ( ~ ( in @ SY375 @ SV282 )
                  | ( in @ SY375 @ SV197 )
                  | ( in @ SY375 @ SV258 ) )
            | ~ ~ ( ~ ! [SY376: $i] :
                        ( ~ ( in @ SY376 @ SV197 )
                        | ( in @ SY376 @ SV282 ) )
                  | ~ ! [SY377: $i] :
                        ( ~ ( in @ SY377 @ SV258 )
                        | ( in @ SY377 @ SV282 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1126]) ).

thf(1166,plain,
    ! [SV235: $i,SV259: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK8_C @ SV259 @ SV235 ) @ SV235 )
              | ~ ~ ( in @ ( sK8_C @ SV259 @ SV235 ) @ SV259 ) ) )
        = $true )
      | ( ( subset @ SV235 @ SV259 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1127]) ).

thf(1167,plain,
    ! [SV260: $i,SV236: $i] :
      ( ( ( ~ ( subset @ SV236 @ SV260 ) )
        = $true )
      | ( ( ! [SY355: $i] :
              ( ~ ( in @ SY355 @ SV236 )
              | ( in @ SY355 @ SV260 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1128]) ).

thf(1168,plain,
    ! [SV198: $i,SV261: $i,SV283: $i] :
      ( ( ~ ( ~ ( ~ ( in @ ( sK6_D @ SV283 @ SV261 @ SV198 ) @ SV198 )
                | ( in @ ( sK6_D @ SV283 @ SV261 @ SV198 ) @ SV261 )
                | ~ ( in @ ( sK6_D @ SV283 @ SV261 @ SV198 ) @ SV283 ) )
            | ~ ~ ( ~ ( ( in @ ( sK6_D @ SV283 @ SV261 @ SV198 ) @ SV198 )
                      | ( in @ ( sK6_D @ SV283 @ SV261 @ SV198 ) @ SV283 ) )
                  | ~ ( ~ ( in @ ( sK6_D @ SV283 @ SV261 @ SV198 ) @ SV261 )
                      | ( in @ ( sK6_D @ SV283 @ SV261 @ SV198 ) @ SV283 ) ) ) )
        | ( SV283
          = ( set_difference @ SV198 @ SV261 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1129]) ).

thf(1169,plain,
    ! [SV262: $i,SV198: $i,SV284: $i] :
      ( ( ( SV284
         != ( set_difference @ SV198 @ SV262 ) )
        | ~ ( ~ ! [SY378: $i] :
                  ( ~ ( in @ SY378 @ SV198 )
                  | ( in @ SY378 @ SV262 )
                  | ( in @ SY378 @ SV284 ) )
            | ~ ~ ( ~ ! [SY379: $i] :
                        ( ~ ( in @ SY379 @ SV284 )
                        | ( in @ SY379 @ SV198 ) )
                  | ~ ! [SY380: $i] :
                        ( ~ ( in @ SY380 @ SV284 )
                        | ~ ( in @ SY380 @ SV262 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1130]) ).

thf(1170,plain,
    ! [SV263: $i,SV237: $i] :
      ( ( ( disjoint @ SV237 @ SV263 )
        = $true )
      | ( ( in @ ( sK13_C @ SV263 @ SV237 ) @ ( set_intersection2 @ SV237 @ SV263 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1131]) ).

thf(1171,plain,
    ! [SV264: $i,SV238: $i] :
      ( ( ( ! [SY361: $i] :
              ~ ( in @ SY361 @ ( set_intersection2 @ SV238 @ SV264 ) ) )
        = $true )
      | ( ( ~ ( disjoint @ SV238 @ SV264 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1132]) ).

thf(1172,plain,
    ! [SV240: $i] :
      ( ( ( SV240 = empty_set )
        = $false )
      | ( ( ! [SY334: $i] :
              ~ ( in @ SY334 @ SV240 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1134]) ).

thf(1173,plain,
    ! [SV199: $i,SV226: $i] :
      ( ( ( ~ ( in @ ( sK3_C @ SV226 @ SV199 ) @ SV199 )
          | ~ ( in @ ( sK3_C @ SV226 @ SV199 ) @ SV226 ) )
        = $true )
      | ( ( SV199 = SV226 )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1135]) ).

thf(1174,plain,
    ! [SV199: $i,SV226: $i] :
      ( ( ( ( in @ ( sK3_C @ SV226 @ SV199 ) @ SV199 )
          | ( in @ ( sK3_C @ SV226 @ SV199 ) @ SV226 ) )
        = $true )
      | ( ( SV199 = SV226 )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1136]) ).

thf(1175,plain,
    ! [SV265: $i,SV241: $i] :
      ( ( ( ( SV241 = SV265 )
          | ~ ( subset @ SV241 @ SV265 ) )
        = $true )
      | ( ( proper_subset @ SV241 @ SV265 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1137]) ).

thf(1176,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( proper_subset @ SX0 @ SX1 )
          | ( SX0 != SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[1138]) ).

thf(1177,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( proper_subset @ SX0 @ SX1 )
          | ( subset @ SX0 @ SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[1139]) ).

thf(1178,plain,
    ! [SV242: $i,SV266: $i] :
      ( ( ( ~ ( ~ ( ( ( sK12_C @ SV266 @ SV242 )
                   != SV242 )
                  | ~ ( in @ ( sK12_C @ SV266 @ SV242 ) @ SV266 ) )
              | ~ ( ( ( sK12_C @ SV266 @ SV242 )
                    = SV242 )
                  | ( in @ ( sK12_C @ SV266 @ SV242 ) @ SV266 ) ) ) )
        = $true )
      | ( ( SV266
          = ( singleton @ SV242 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1140]) ).

thf(1179,plain,
    ! [SV243: $i,SV267: $i] :
      ( ( ( ( SV267
           != ( singleton @ SV243 ) ) )
        = $true )
      | ( ( ~ ( ~ ! [SY362: $i] :
                    ( ( SY362 != SV243 )
                    | ( in @ SY362 @ SV267 ) )
              | ~ ! [SY363: $i] :
                    ( ~ ( in @ SY363 @ SV267 )
                    | ( SY363 = SV243 ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1141]) ).

thf(1180,plain,
    ! [SV200: $i,SV268: $i,SV285: $i] :
      ( ( ~ ( ~ ( ~ ( in @ ( sK7_D @ SV285 @ SV268 @ SV200 ) @ SV200 )
                | ~ ( in @ ( sK7_D @ SV285 @ SV268 @ SV200 ) @ SV268 )
                | ~ ( in @ ( sK7_D @ SV285 @ SV268 @ SV200 ) @ SV285 ) )
            | ~ ~ ( ~ ( ( in @ ( sK7_D @ SV285 @ SV268 @ SV200 ) @ SV200 )
                      | ( in @ ( sK7_D @ SV285 @ SV268 @ SV200 ) @ SV285 ) )
                  | ~ ( ( in @ ( sK7_D @ SV285 @ SV268 @ SV200 ) @ SV268 )
                      | ( in @ ( sK7_D @ SV285 @ SV268 @ SV200 ) @ SV285 ) ) ) )
        | ( SV285
          = ( set_intersection2 @ SV200 @ SV268 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1142]) ).

thf(1181,plain,
    ! [SV269: $i,SV200: $i,SV286: $i] :
      ( ( ( SV286
         != ( set_intersection2 @ SV200 @ SV269 ) )
        | ~ ( ~ ! [SY381: $i] :
                  ( ~ ( in @ SY381 @ SV200 )
                  | ~ ( in @ SY381 @ SV269 )
                  | ( in @ SY381 @ SV286 ) )
            | ~ ~ ( ~ ! [SY382: $i] :
                        ( ~ ( in @ SY382 @ SV286 )
                        | ( in @ SY382 @ SV200 ) )
                  | ~ ! [SY383: $i] :
                        ( ~ ( in @ SY383 @ SV286 )
                        | ( in @ SY383 @ SV269 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1143]) ).

thf(1182,plain,
    ! [SV270: $i,SV244: $i] :
      ( ( ( ~ ( subset @ SV244 @ SV270 )
          | ~ ( subset @ SV270 @ SV244 ) )
        = $true )
      | ( ( SV244 = SV270 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1144]) ).

thf(1183,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ( SX0 != SX1 )
          | ( subset @ SX0 @ SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[1145]) ).

thf(1184,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ( SX0 != SX1 )
          | ( subset @ SX1 @ SX0 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[1146]) ).

thf(1185,plain,
    ! [SV271: $i,SV245: $i] :
      ( ( ( ( ( set_difference @ SV245 @ SV271 )
           != empty_set ) )
        = $true )
      | ( ( subset @ SV245 @ SV271 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1147]) ).

thf(1186,plain,
    ! [SV272: $i,SV246: $i] :
      ( ( ( ~ ( subset @ SV246 @ SV272 ) )
        = $true )
      | ( ( ( set_difference @ SV246 @ SV272 )
          = empty_set )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1148]) ).

thf(1187,plain,
    ! [SV273: $i,SV247: $i] :
      ( ( ( ( ( set_intersection2 @ SV247 @ SV273 )
           != empty_set ) )
        = $true )
      | ( ( disjoint @ SV247 @ SV273 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1149]) ).

thf(1188,plain,
    ! [SV274: $i,SV248: $i] :
      ( ( ( ~ ( disjoint @ SV248 @ SV274 ) )
        = $true )
      | ( ( ( set_intersection2 @ SV248 @ SV274 )
          = empty_set )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1150]) ).

thf(1189,plain,
    ! [SV275: $i,SV249: $i] :
      ( ( ( ( ( set_difference @ SV249 @ SV275 )
           != empty_set ) )
        = $true )
      | ( ( subset @ SV249 @ SV275 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1151]) ).

thf(1190,plain,
    ! [SV276: $i,SV250: $i] :
      ( ( ( ~ ( subset @ SV250 @ SV276 ) )
        = $true )
      | ( ( ( set_difference @ SV250 @ SV276 )
          = empty_set )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1152]) ).

thf(1191,plain,
    ! [SV277: $i,SV251: $i] :
      ( ( ( disjoint @ SV251 @ SV277 )
        = $true )
      | ( ( ~ ( ~ ( in @ ( sK14_C @ SV277 @ SV251 ) @ SV251 )
              | ~ ( in @ ( sK14_C @ SV277 @ SV251 ) @ SV277 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1153]) ).

thf(1192,plain,
    ! [SV278: $i,SV252: $i] :
      ( ( ( ! [SY369: $i] :
              ( ~ ( in @ SY369 @ SV252 )
              | ~ ( in @ SY369 @ SV278 ) ) )
        = $true )
      | ( ( ~ ( disjoint @ SV252 @ SV278 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1154]) ).

thf(1193,plain,
    ! [SV201: $i,SV279: $i,SV287: $i] :
      ( ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK10_D @ SV287 @ SV279 @ SV201 ) @ SV287 )
                      | ( ( sK10_D @ SV287 @ SV279 @ SV201 )
                       != SV201 ) )
                  | ~ ( ~ ( in @ ( sK10_D @ SV287 @ SV279 @ SV201 ) @ SV287 )
                      | ( ( sK10_D @ SV287 @ SV279 @ SV201 )
                       != SV279 ) ) )
            | ~ ( ( in @ ( sK10_D @ SV287 @ SV279 @ SV201 ) @ SV287 )
                | ( ( sK10_D @ SV287 @ SV279 @ SV201 )
                  = SV201 )
                | ( ( sK10_D @ SV287 @ SV279 @ SV201 )
                  = SV279 ) ) )
        | ( SV287
          = ( unordered_pair @ SV201 @ SV279 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1155]) ).

thf(1194,plain,
    ! [SV280: $i,SV201: $i,SV288: $i] :
      ( ( ( SV288
         != ( unordered_pair @ SV201 @ SV280 ) )
        | ~ ( ~ ! [SY384: $i] :
                  ( ~ ( in @ SY384 @ SV288 )
                  | ( SY384 = SV201 )
                  | ( SY384 = SV280 ) )
            | ~ ~ ( ~ ! [SY385: $i] :
                        ( ( SY385 != SV201 )
                        | ( in @ SY385 @ SV288 ) )
                  | ~ ! [SY386: $i] :
                        ( ( SY386 != SV280 )
                        | ( in @ SY386 @ SV288 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1156]) ).

thf(1195,plain,
    ! [SV204: $i,SV227: $i,SV161: $i] :
      ( ( ( subset @ SV161 @ SV227 )
        = $false )
      | ( ( subset @ SV161 @ SV204 )
        = $false )
      | ( ( subset @ SV161 @ ( set_intersection2 @ SV204 @ SV227 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1157]) ).

thf(1196,plain,
    ! [SV162: $i,SV228: $i,SV205: $i] :
      ( ( ( subset @ SV205 @ SV228 )
        = $false )
      | ( ( subset @ SV162 @ SV205 )
        = $false )
      | ( ( subset @ SV162 @ SV228 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1158]) ).

thf(1197,plain,
    ! [SV229: $i,SV215: $i,SV174: $i] :
      ( ( ( subset @ SV174 @ SV215 )
        = $false )
      | ( ( disjoint @ SV215 @ SV229 )
        = $false )
      | ( ( disjoint @ SV174 @ SV229 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1159]) ).

thf(1198,plain,
    ! [SV177: $i,SV217: $i,SV230: $i] :
      ( ( ( subset @ SV230 @ SV217 )
        = $false )
      | ( ( subset @ SV177 @ SV217 )
        = $false )
      | ( ( subset @ ( set_union2 @ SV177 @ SV230 ) @ SV217 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1160]) ).

thf(1199,plain,
    ! [SV255: $i,SV233: $i] :
      ( ( ( ( set_difference @ SV233 @ SV255 )
          = SV233 )
        = $false )
      | ( ( disjoint @ SV233 @ SV255 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1162]) ).

thf(1200,plain,
    ! [SV256: $i,SV234: $i] :
      ( ( ( disjoint @ SV234 @ SV256 )
        = $false )
      | ( ( ( set_difference @ SV234 @ SV256 )
          = SV234 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1163]) ).

thf(1201,plain,
    ! [SV197: $i,SV257: $i,SV281: $i] :
      ( ( ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK9_D @ SV281 @ SV257 @ SV197 ) @ SV281 )
                        | ~ ( in @ ( sK9_D @ SV281 @ SV257 @ SV197 ) @ SV197 ) )
                    | ~ ( ~ ( in @ ( sK9_D @ SV281 @ SV257 @ SV197 ) @ SV281 )
                        | ~ ( in @ ( sK9_D @ SV281 @ SV257 @ SV197 ) @ SV257 ) ) )
              | ~ ( ( in @ ( sK9_D @ SV281 @ SV257 @ SV197 ) @ SV281 )
                  | ( in @ ( sK9_D @ SV281 @ SV257 @ SV197 ) @ SV197 )
                  | ( in @ ( sK9_D @ SV281 @ SV257 @ SV197 ) @ SV257 ) ) ) )
        = $true )
      | ( ( SV281
          = ( set_union2 @ SV197 @ SV257 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1164]) ).

thf(1202,plain,
    ! [SV258: $i,SV197: $i,SV282: $i] :
      ( ( ( ( SV282
           != ( set_union2 @ SV197 @ SV258 ) ) )
        = $true )
      | ( ( ~ ( ~ ! [SY375: $i] :
                    ( ~ ( in @ SY375 @ SV282 )
                    | ( in @ SY375 @ SV197 )
                    | ( in @ SY375 @ SV258 ) )
              | ~ ~ ( ~ ! [SY376: $i] :
                          ( ~ ( in @ SY376 @ SV197 )
                          | ( in @ SY376 @ SV282 ) )
                    | ~ ! [SY377: $i] :
                          ( ~ ( in @ SY377 @ SV258 )
                          | ( in @ SY377 @ SV282 ) ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1165]) ).

thf(1203,plain,
    ! [SV235: $i,SV259: $i] :
      ( ( ( ~ ( in @ ( sK8_C @ SV259 @ SV235 ) @ SV235 )
          | ~ ~ ( in @ ( sK8_C @ SV259 @ SV235 ) @ SV259 ) )
        = $false )
      | ( ( subset @ SV235 @ SV259 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1166]) ).

thf(1204,plain,
    ! [SV260: $i,SV236: $i] :
      ( ( ( subset @ SV236 @ SV260 )
        = $false )
      | ( ( ! [SY355: $i] :
              ( ~ ( in @ SY355 @ SV236 )
              | ( in @ SY355 @ SV260 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1167]) ).

thf(1205,plain,
    ! [SV198: $i,SV261: $i,SV283: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ ( sK6_D @ SV283 @ SV261 @ SV198 ) @ SV198 )
                  | ( in @ ( sK6_D @ SV283 @ SV261 @ SV198 ) @ SV261 )
                  | ~ ( in @ ( sK6_D @ SV283 @ SV261 @ SV198 ) @ SV283 ) )
              | ~ ~ ( ~ ( ( in @ ( sK6_D @ SV283 @ SV261 @ SV198 ) @ SV198 )
                        | ( in @ ( sK6_D @ SV283 @ SV261 @ SV198 ) @ SV283 ) )
                    | ~ ( ~ ( in @ ( sK6_D @ SV283 @ SV261 @ SV198 ) @ SV261 )
                        | ( in @ ( sK6_D @ SV283 @ SV261 @ SV198 ) @ SV283 ) ) ) ) )
        = $true )
      | ( ( SV283
          = ( set_difference @ SV198 @ SV261 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1168]) ).

thf(1206,plain,
    ! [SV262: $i,SV198: $i,SV284: $i] :
      ( ( ( ( SV284
           != ( set_difference @ SV198 @ SV262 ) ) )
        = $true )
      | ( ( ~ ( ~ ! [SY378: $i] :
                    ( ~ ( in @ SY378 @ SV198 )
                    | ( in @ SY378 @ SV262 )
                    | ( in @ SY378 @ SV284 ) )
              | ~ ~ ( ~ ! [SY379: $i] :
                          ( ~ ( in @ SY379 @ SV284 )
                          | ( in @ SY379 @ SV198 ) )
                    | ~ ! [SY380: $i] :
                          ( ~ ( in @ SY380 @ SV284 )
                          | ~ ( in @ SY380 @ SV262 ) ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1169]) ).

thf(1207,plain,
    ! [SV264: $i,SV238: $i,SV289: $i] :
      ( ( ( ~ ( in @ SV289 @ ( set_intersection2 @ SV238 @ SV264 ) ) )
        = $true )
      | ( ( ~ ( disjoint @ SV238 @ SV264 ) )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[1171]) ).

thf(1208,plain,
    ! [SV240: $i,SV290: $i] :
      ( ( ( ~ ( in @ SV290 @ SV240 ) )
        = $true )
      | ( ( SV240 = empty_set )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1172]) ).

thf(1209,plain,
    ! [SV199: $i,SV226: $i] :
      ( ( ( ~ ( in @ ( sK3_C @ SV226 @ SV199 ) @ SV199 ) )
        = $true )
      | ( ( ~ ( in @ ( sK3_C @ SV226 @ SV199 ) @ SV226 ) )
        = $true )
      | ( ( SV199 = SV226 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1173]) ).

thf(1210,plain,
    ! [SV199: $i,SV226: $i] :
      ( ( ( in @ ( sK3_C @ SV226 @ SV199 ) @ SV199 )
        = $true )
      | ( ( in @ ( sK3_C @ SV226 @ SV199 ) @ SV226 )
        = $true )
      | ( ( SV199 = SV226 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1174]) ).

thf(1211,plain,
    ! [SV265: $i,SV241: $i] :
      ( ( ( SV241 = SV265 )
        = $true )
      | ( ( ~ ( subset @ SV241 @ SV265 ) )
        = $true )
      | ( ( proper_subset @ SV241 @ SV265 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1175]) ).

thf(1212,plain,
    ! [SV291: $i] :
      ( ( ! [SY387: $i] :
            ( ~ ( proper_subset @ SV291 @ SY387 )
            | ( SV291 != SY387 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1176]) ).

thf(1213,plain,
    ! [SV292: $i] :
      ( ( ! [SY388: $i] :
            ( ~ ( proper_subset @ SV292 @ SY388 )
            | ( subset @ SV292 @ SY388 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1177]) ).

thf(1214,plain,
    ! [SV242: $i,SV266: $i] :
      ( ( ( ~ ( ( ( sK12_C @ SV266 @ SV242 )
               != SV242 )
              | ~ ( in @ ( sK12_C @ SV266 @ SV242 ) @ SV266 ) )
          | ~ ( ( ( sK12_C @ SV266 @ SV242 )
                = SV242 )
              | ( in @ ( sK12_C @ SV266 @ SV242 ) @ SV266 ) ) )
        = $false )
      | ( ( SV266
          = ( singleton @ SV242 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1178]) ).

thf(1215,plain,
    ! [SV243: $i,SV267: $i] :
      ( ( ( SV267
          = ( singleton @ SV243 ) )
        = $false )
      | ( ( ~ ( ~ ! [SY362: $i] :
                    ( ( SY362 != SV243 )
                    | ( in @ SY362 @ SV267 ) )
              | ~ ! [SY363: $i] :
                    ( ~ ( in @ SY363 @ SV267 )
                    | ( SY363 = SV243 ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1179]) ).

thf(1216,plain,
    ! [SV200: $i,SV268: $i,SV285: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ ( sK7_D @ SV285 @ SV268 @ SV200 ) @ SV200 )
                  | ~ ( in @ ( sK7_D @ SV285 @ SV268 @ SV200 ) @ SV268 )
                  | ~ ( in @ ( sK7_D @ SV285 @ SV268 @ SV200 ) @ SV285 ) )
              | ~ ~ ( ~ ( ( in @ ( sK7_D @ SV285 @ SV268 @ SV200 ) @ SV200 )
                        | ( in @ ( sK7_D @ SV285 @ SV268 @ SV200 ) @ SV285 ) )
                    | ~ ( ( in @ ( sK7_D @ SV285 @ SV268 @ SV200 ) @ SV268 )
                        | ( in @ ( sK7_D @ SV285 @ SV268 @ SV200 ) @ SV285 ) ) ) ) )
        = $true )
      | ( ( SV285
          = ( set_intersection2 @ SV200 @ SV268 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1180]) ).

thf(1217,plain,
    ! [SV269: $i,SV200: $i,SV286: $i] :
      ( ( ( ( SV286
           != ( set_intersection2 @ SV200 @ SV269 ) ) )
        = $true )
      | ( ( ~ ( ~ ! [SY381: $i] :
                    ( ~ ( in @ SY381 @ SV200 )
                    | ~ ( in @ SY381 @ SV269 )
                    | ( in @ SY381 @ SV286 ) )
              | ~ ~ ( ~ ! [SY382: $i] :
                          ( ~ ( in @ SY382 @ SV286 )
                          | ( in @ SY382 @ SV200 ) )
                    | ~ ! [SY383: $i] :
                          ( ~ ( in @ SY383 @ SV286 )
                          | ( in @ SY383 @ SV269 ) ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1181]) ).

thf(1218,plain,
    ! [SV270: $i,SV244: $i] :
      ( ( ( ~ ( subset @ SV244 @ SV270 ) )
        = $true )
      | ( ( ~ ( subset @ SV270 @ SV244 ) )
        = $true )
      | ( ( SV244 = SV270 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1182]) ).

thf(1219,plain,
    ! [SV293: $i] :
      ( ( ! [SY389: $i] :
            ( ( SV293 != SY389 )
            | ( subset @ SV293 @ SY389 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1183]) ).

thf(1220,plain,
    ! [SV294: $i] :
      ( ( ! [SY390: $i] :
            ( ( SV294 != SY390 )
            | ( subset @ SY390 @ SV294 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1184]) ).

thf(1221,plain,
    ! [SV271: $i,SV245: $i] :
      ( ( ( ( set_difference @ SV245 @ SV271 )
          = empty_set )
        = $false )
      | ( ( subset @ SV245 @ SV271 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1185]) ).

thf(1222,plain,
    ! [SV272: $i,SV246: $i] :
      ( ( ( subset @ SV246 @ SV272 )
        = $false )
      | ( ( ( set_difference @ SV246 @ SV272 )
          = empty_set )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1186]) ).

thf(1223,plain,
    ! [SV273: $i,SV247: $i] :
      ( ( ( ( set_intersection2 @ SV247 @ SV273 )
          = empty_set )
        = $false )
      | ( ( disjoint @ SV247 @ SV273 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1187]) ).

thf(1224,plain,
    ! [SV274: $i,SV248: $i] :
      ( ( ( disjoint @ SV248 @ SV274 )
        = $false )
      | ( ( ( set_intersection2 @ SV248 @ SV274 )
          = empty_set )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1188]) ).

thf(1225,plain,
    ! [SV275: $i,SV249: $i] :
      ( ( ( ( set_difference @ SV249 @ SV275 )
          = empty_set )
        = $false )
      | ( ( subset @ SV249 @ SV275 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1189]) ).

thf(1226,plain,
    ! [SV276: $i,SV250: $i] :
      ( ( ( subset @ SV250 @ SV276 )
        = $false )
      | ( ( ( set_difference @ SV250 @ SV276 )
          = empty_set )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1190]) ).

thf(1227,plain,
    ! [SV251: $i,SV277: $i] :
      ( ( ( ~ ( in @ ( sK14_C @ SV277 @ SV251 ) @ SV251 )
          | ~ ( in @ ( sK14_C @ SV277 @ SV251 ) @ SV277 ) )
        = $false )
      | ( ( disjoint @ SV251 @ SV277 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1191]) ).

thf(1228,plain,
    ! [SV278: $i,SV252: $i,SV295: $i] :
      ( ( ( ~ ( in @ SV295 @ SV252 )
          | ~ ( in @ SV295 @ SV278 ) )
        = $true )
      | ( ( ~ ( disjoint @ SV252 @ SV278 ) )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[1192]) ).

thf(1229,plain,
    ! [SV201: $i,SV279: $i,SV287: $i] :
      ( ( ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK10_D @ SV287 @ SV279 @ SV201 ) @ SV287 )
                        | ( ( sK10_D @ SV287 @ SV279 @ SV201 )
                         != SV201 ) )
                    | ~ ( ~ ( in @ ( sK10_D @ SV287 @ SV279 @ SV201 ) @ SV287 )
                        | ( ( sK10_D @ SV287 @ SV279 @ SV201 )
                         != SV279 ) ) )
              | ~ ( ( in @ ( sK10_D @ SV287 @ SV279 @ SV201 ) @ SV287 )
                  | ( ( sK10_D @ SV287 @ SV279 @ SV201 )
                    = SV201 )
                  | ( ( sK10_D @ SV287 @ SV279 @ SV201 )
                    = SV279 ) ) ) )
        = $true )
      | ( ( SV287
          = ( unordered_pair @ SV201 @ SV279 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1193]) ).

thf(1230,plain,
    ! [SV280: $i,SV201: $i,SV288: $i] :
      ( ( ( ( SV288
           != ( unordered_pair @ SV201 @ SV280 ) ) )
        = $true )
      | ( ( ~ ( ~ ! [SY384: $i] :
                    ( ~ ( in @ SY384 @ SV288 )
                    | ( SY384 = SV201 )
                    | ( SY384 = SV280 ) )
              | ~ ~ ( ~ ! [SY385: $i] :
                          ( ( SY385 != SV201 )
                          | ( in @ SY385 @ SV288 ) )
                    | ~ ! [SY386: $i] :
                          ( ( SY386 != SV280 )
                          | ( in @ SY386 @ SV288 ) ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1194]) ).

thf(1231,plain,
    ! [SV197: $i,SV257: $i,SV281: $i] :
      ( ( ( ~ ~ ( ~ ( ~ ( in @ ( sK9_D @ SV281 @ SV257 @ SV197 ) @ SV281 )
                    | ~ ( in @ ( sK9_D @ SV281 @ SV257 @ SV197 ) @ SV197 ) )
                | ~ ( ~ ( in @ ( sK9_D @ SV281 @ SV257 @ SV197 ) @ SV281 )
                    | ~ ( in @ ( sK9_D @ SV281 @ SV257 @ SV197 ) @ SV257 ) ) )
          | ~ ( ( in @ ( sK9_D @ SV281 @ SV257 @ SV197 ) @ SV281 )
              | ( in @ ( sK9_D @ SV281 @ SV257 @ SV197 ) @ SV197 )
              | ( in @ ( sK9_D @ SV281 @ SV257 @ SV197 ) @ SV257 ) ) )
        = $false )
      | ( ( SV281
          = ( set_union2 @ SV197 @ SV257 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1201]) ).

thf(1232,plain,
    ! [SV258: $i,SV197: $i,SV282: $i] :
      ( ( ( SV282
          = ( set_union2 @ SV197 @ SV258 ) )
        = $false )
      | ( ( ~ ( ~ ! [SY375: $i] :
                    ( ~ ( in @ SY375 @ SV282 )
                    | ( in @ SY375 @ SV197 )
                    | ( in @ SY375 @ SV258 ) )
              | ~ ~ ( ~ ! [SY376: $i] :
                          ( ~ ( in @ SY376 @ SV197 )
                          | ( in @ SY376 @ SV282 ) )
                    | ~ ! [SY377: $i] :
                          ( ~ ( in @ SY377 @ SV258 )
                          | ( in @ SY377 @ SV282 ) ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1202]) ).

thf(1233,plain,
    ! [SV235: $i,SV259: $i] :
      ( ( ( ~ ( in @ ( sK8_C @ SV259 @ SV235 ) @ SV235 ) )
        = $false )
      | ( ( subset @ SV235 @ SV259 )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1203]) ).

thf(1234,plain,
    ! [SV235: $i,SV259: $i] :
      ( ( ( ~ ~ ( in @ ( sK8_C @ SV259 @ SV235 ) @ SV259 ) )
        = $false )
      | ( ( subset @ SV235 @ SV259 )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1203]) ).

thf(1235,plain,
    ! [SV260: $i,SV236: $i,SV296: $i] :
      ( ( ( ~ ( in @ SV296 @ SV236 )
          | ( in @ SV296 @ SV260 ) )
        = $true )
      | ( ( subset @ SV236 @ SV260 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1204]) ).

thf(1236,plain,
    ! [SV198: $i,SV261: $i,SV283: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK6_D @ SV283 @ SV261 @ SV198 ) @ SV198 )
              | ( in @ ( sK6_D @ SV283 @ SV261 @ SV198 ) @ SV261 )
              | ~ ( in @ ( sK6_D @ SV283 @ SV261 @ SV198 ) @ SV283 ) )
          | ~ ~ ( ~ ( ( in @ ( sK6_D @ SV283 @ SV261 @ SV198 ) @ SV198 )
                    | ( in @ ( sK6_D @ SV283 @ SV261 @ SV198 ) @ SV283 ) )
                | ~ ( ~ ( in @ ( sK6_D @ SV283 @ SV261 @ SV198 ) @ SV261 )
                    | ( in @ ( sK6_D @ SV283 @ SV261 @ SV198 ) @ SV283 ) ) ) )
        = $false )
      | ( ( SV283
          = ( set_difference @ SV198 @ SV261 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1205]) ).

thf(1237,plain,
    ! [SV262: $i,SV198: $i,SV284: $i] :
      ( ( ( SV284
          = ( set_difference @ SV198 @ SV262 ) )
        = $false )
      | ( ( ~ ( ~ ! [SY378: $i] :
                    ( ~ ( in @ SY378 @ SV198 )
                    | ( in @ SY378 @ SV262 )
                    | ( in @ SY378 @ SV284 ) )
              | ~ ~ ( ~ ! [SY379: $i] :
                          ( ~ ( in @ SY379 @ SV284 )
                          | ( in @ SY379 @ SV198 ) )
                    | ~ ! [SY380: $i] :
                          ( ~ ( in @ SY380 @ SV284 )
                          | ~ ( in @ SY380 @ SV262 ) ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1206]) ).

thf(1238,plain,
    ! [SV264: $i,SV238: $i,SV289: $i] :
      ( ( ( in @ SV289 @ ( set_intersection2 @ SV238 @ SV264 ) )
        = $false )
      | ( ( ~ ( disjoint @ SV238 @ SV264 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1207]) ).

thf(1239,plain,
    ! [SV240: $i,SV290: $i] :
      ( ( ( in @ SV290 @ SV240 )
        = $false )
      | ( ( SV240 = empty_set )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1208]) ).

thf(1240,plain,
    ! [SV199: $i,SV226: $i] :
      ( ( ( in @ ( sK3_C @ SV226 @ SV199 ) @ SV199 )
        = $false )
      | ( ( ~ ( in @ ( sK3_C @ SV226 @ SV199 ) @ SV226 ) )
        = $true )
      | ( ( SV199 = SV226 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1209]) ).

thf(1241,plain,
    ! [SV265: $i,SV241: $i] :
      ( ( ( subset @ SV241 @ SV265 )
        = $false )
      | ( ( SV241 = SV265 )
        = $true )
      | ( ( proper_subset @ SV241 @ SV265 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1211]) ).

thf(1242,plain,
    ! [SV297: $i,SV291: $i] :
      ( ( ~ ( proper_subset @ SV291 @ SV297 )
        | ( SV291 != SV297 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1212]) ).

thf(1243,plain,
    ! [SV298: $i,SV292: $i] :
      ( ( ~ ( proper_subset @ SV292 @ SV298 )
        | ( subset @ SV292 @ SV298 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1213]) ).

thf(1244,plain,
    ! [SV242: $i,SV266: $i] :
      ( ( ( ~ ( ( ( sK12_C @ SV266 @ SV242 )
               != SV242 )
              | ~ ( in @ ( sK12_C @ SV266 @ SV242 ) @ SV266 ) ) )
        = $false )
      | ( ( SV266
          = ( singleton @ SV242 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1214]) ).

thf(1245,plain,
    ! [SV242: $i,SV266: $i] :
      ( ( ( ~ ( ( ( sK12_C @ SV266 @ SV242 )
                = SV242 )
              | ( in @ ( sK12_C @ SV266 @ SV242 ) @ SV266 ) ) )
        = $false )
      | ( ( SV266
          = ( singleton @ SV242 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1214]) ).

thf(1246,plain,
    ! [SV267: $i,SV243: $i] :
      ( ( ( ~ ! [SY362: $i] :
                ( ( SY362 != SV243 )
                | ( in @ SY362 @ SV267 ) )
          | ~ ! [SY363: $i] :
                ( ~ ( in @ SY363 @ SV267 )
                | ( SY363 = SV243 ) ) )
        = $false )
      | ( ( SV267
          = ( singleton @ SV243 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1215]) ).

thf(1247,plain,
    ! [SV200: $i,SV268: $i,SV285: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK7_D @ SV285 @ SV268 @ SV200 ) @ SV200 )
              | ~ ( in @ ( sK7_D @ SV285 @ SV268 @ SV200 ) @ SV268 )
              | ~ ( in @ ( sK7_D @ SV285 @ SV268 @ SV200 ) @ SV285 ) )
          | ~ ~ ( ~ ( ( in @ ( sK7_D @ SV285 @ SV268 @ SV200 ) @ SV200 )
                    | ( in @ ( sK7_D @ SV285 @ SV268 @ SV200 ) @ SV285 ) )
                | ~ ( ( in @ ( sK7_D @ SV285 @ SV268 @ SV200 ) @ SV268 )
                    | ( in @ ( sK7_D @ SV285 @ SV268 @ SV200 ) @ SV285 ) ) ) )
        = $false )
      | ( ( SV285
          = ( set_intersection2 @ SV200 @ SV268 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1216]) ).

thf(1248,plain,
    ! [SV269: $i,SV200: $i,SV286: $i] :
      ( ( ( SV286
          = ( set_intersection2 @ SV200 @ SV269 ) )
        = $false )
      | ( ( ~ ( ~ ! [SY381: $i] :
                    ( ~ ( in @ SY381 @ SV200 )
                    | ~ ( in @ SY381 @ SV269 )
                    | ( in @ SY381 @ SV286 ) )
              | ~ ~ ( ~ ! [SY382: $i] :
                          ( ~ ( in @ SY382 @ SV286 )
                          | ( in @ SY382 @ SV200 ) )
                    | ~ ! [SY383: $i] :
                          ( ~ ( in @ SY383 @ SV286 )
                          | ( in @ SY383 @ SV269 ) ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1217]) ).

thf(1249,plain,
    ! [SV270: $i,SV244: $i] :
      ( ( ( subset @ SV244 @ SV270 )
        = $false )
      | ( ( ~ ( subset @ SV270 @ SV244 ) )
        = $true )
      | ( ( SV244 = SV270 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1218]) ).

thf(1250,plain,
    ! [SV299: $i,SV293: $i] :
      ( ( ( SV293 != SV299 )
        | ( subset @ SV293 @ SV299 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1219]) ).

thf(1251,plain,
    ! [SV300: $i,SV294: $i] :
      ( ( ( SV294 != SV300 )
        | ( subset @ SV300 @ SV294 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[1220]) ).

thf(1252,plain,
    ! [SV251: $i,SV277: $i] :
      ( ( ( ~ ( in @ ( sK14_C @ SV277 @ SV251 ) @ SV251 ) )
        = $false )
      | ( ( disjoint @ SV251 @ SV277 )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1227]) ).

thf(1253,plain,
    ! [SV251: $i,SV277: $i] :
      ( ( ( ~ ( in @ ( sK14_C @ SV277 @ SV251 ) @ SV277 ) )
        = $false )
      | ( ( disjoint @ SV251 @ SV277 )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1227]) ).

thf(1254,plain,
    ! [SV278: $i,SV252: $i,SV295: $i] :
      ( ( ( ~ ( in @ SV295 @ SV252 ) )
        = $true )
      | ( ( ~ ( in @ SV295 @ SV278 ) )
        = $true )
      | ( ( ~ ( disjoint @ SV252 @ SV278 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1228]) ).

thf(1255,plain,
    ! [SV201: $i,SV279: $i,SV287: $i] :
      ( ( ( ~ ~ ( ~ ( ~ ( in @ ( sK10_D @ SV287 @ SV279 @ SV201 ) @ SV287 )
                    | ( ( sK10_D @ SV287 @ SV279 @ SV201 )
                     != SV201 ) )
                | ~ ( ~ ( in @ ( sK10_D @ SV287 @ SV279 @ SV201 ) @ SV287 )
                    | ( ( sK10_D @ SV287 @ SV279 @ SV201 )
                     != SV279 ) ) )
          | ~ ( ( in @ ( sK10_D @ SV287 @ SV279 @ SV201 ) @ SV287 )
              | ( ( sK10_D @ SV287 @ SV279 @ SV201 )
                = SV201 )
              | ( ( sK10_D @ SV287 @ SV279 @ SV201 )
                = SV279 ) ) )
        = $false )
      | ( ( SV287
          = ( unordered_pair @ SV201 @ SV279 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1229]) ).

thf(1256,plain,
    ! [SV280: $i,SV201: $i,SV288: $i] :
      ( ( ( SV288
          = ( unordered_pair @ SV201 @ SV280 ) )
        = $false )
      | ( ( ~ ( ~ ! [SY384: $i] :
                    ( ~ ( in @ SY384 @ SV288 )
                    | ( SY384 = SV201 )
                    | ( SY384 = SV280 ) )
              | ~ ~ ( ~ ! [SY385: $i] :
                          ( ( SY385 != SV201 )
                          | ( in @ SY385 @ SV288 ) )
                    | ~ ! [SY386: $i] :
                          ( ( SY386 != SV280 )
                          | ( in @ SY386 @ SV288 ) ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1230]) ).

thf(1257,plain,
    ! [SV197: $i,SV257: $i,SV281: $i] :
      ( ( ( ~ ~ ( ~ ( ~ ( in @ ( sK9_D @ SV281 @ SV257 @ SV197 ) @ SV281 )
                    | ~ ( in @ ( sK9_D @ SV281 @ SV257 @ SV197 ) @ SV197 ) )
                | ~ ( ~ ( in @ ( sK9_D @ SV281 @ SV257 @ SV197 ) @ SV281 )
                    | ~ ( in @ ( sK9_D @ SV281 @ SV257 @ SV197 ) @ SV257 ) ) ) )
        = $false )
      | ( ( SV281
          = ( set_union2 @ SV197 @ SV257 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1231]) ).

thf(1258,plain,
    ! [SV197: $i,SV257: $i,SV281: $i] :
      ( ( ( ~ ( ( in @ ( sK9_D @ SV281 @ SV257 @ SV197 ) @ SV281 )
              | ( in @ ( sK9_D @ SV281 @ SV257 @ SV197 ) @ SV197 )
              | ( in @ ( sK9_D @ SV281 @ SV257 @ SV197 ) @ SV257 ) ) )
        = $false )
      | ( ( SV281
          = ( set_union2 @ SV197 @ SV257 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1231]) ).

thf(1259,plain,
    ! [SV258: $i,SV197: $i,SV282: $i] :
      ( ( ( ~ ! [SY375: $i] :
                ( ~ ( in @ SY375 @ SV282 )
                | ( in @ SY375 @ SV197 )
                | ( in @ SY375 @ SV258 ) )
          | ~ ~ ( ~ ! [SY376: $i] :
                      ( ~ ( in @ SY376 @ SV197 )
                      | ( in @ SY376 @ SV282 ) )
                | ~ ! [SY377: $i] :
                      ( ~ ( in @ SY377 @ SV258 )
                      | ( in @ SY377 @ SV282 ) ) ) )
        = $false )
      | ( ( SV282
          = ( set_union2 @ SV197 @ SV258 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1232]) ).

thf(1260,plain,
    ! [SV235: $i,SV259: $i] :
      ( ( ( in @ ( sK8_C @ SV259 @ SV235 ) @ SV235 )
        = $true )
      | ( ( subset @ SV235 @ SV259 )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1233]) ).

thf(1261,plain,
    ! [SV235: $i,SV259: $i] :
      ( ( ( ~ ( in @ ( sK8_C @ SV259 @ SV235 ) @ SV259 ) )
        = $true )
      | ( ( subset @ SV235 @ SV259 )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1234]) ).

thf(1262,plain,
    ! [SV260: $i,SV236: $i,SV296: $i] :
      ( ( ( ~ ( in @ SV296 @ SV236 ) )
        = $true )
      | ( ( in @ SV296 @ SV260 )
        = $true )
      | ( ( subset @ SV236 @ SV260 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1235]) ).

thf(1263,plain,
    ! [SV198: $i,SV261: $i,SV283: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK6_D @ SV283 @ SV261 @ SV198 ) @ SV198 )
              | ( in @ ( sK6_D @ SV283 @ SV261 @ SV198 ) @ SV261 )
              | ~ ( in @ ( sK6_D @ SV283 @ SV261 @ SV198 ) @ SV283 ) ) )
        = $false )
      | ( ( SV283
          = ( set_difference @ SV198 @ SV261 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1236]) ).

thf(1264,plain,
    ! [SV198: $i,SV261: $i,SV283: $i] :
      ( ( ( ~ ~ ( ~ ( ( in @ ( sK6_D @ SV283 @ SV261 @ SV198 ) @ SV198 )
                    | ( in @ ( sK6_D @ SV283 @ SV261 @ SV198 ) @ SV283 ) )
                | ~ ( ~ ( in @ ( sK6_D @ SV283 @ SV261 @ SV198 ) @ SV261 )
                    | ( in @ ( sK6_D @ SV283 @ SV261 @ SV198 ) @ SV283 ) ) ) )
        = $false )
      | ( ( SV283
          = ( set_difference @ SV198 @ SV261 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1236]) ).

thf(1265,plain,
    ! [SV284: $i,SV262: $i,SV198: $i] :
      ( ( ( ~ ! [SY378: $i] :
                ( ~ ( in @ SY378 @ SV198 )
                | ( in @ SY378 @ SV262 )
                | ( in @ SY378 @ SV284 ) )
          | ~ ~ ( ~ ! [SY379: $i] :
                      ( ~ ( in @ SY379 @ SV284 )
                      | ( in @ SY379 @ SV198 ) )
                | ~ ! [SY380: $i] :
                      ( ~ ( in @ SY380 @ SV284 )
                      | ~ ( in @ SY380 @ SV262 ) ) ) )
        = $false )
      | ( ( SV284
          = ( set_difference @ SV198 @ SV262 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1237]) ).

thf(1266,plain,
    ! [SV289: $i,SV264: $i,SV238: $i] :
      ( ( ( disjoint @ SV238 @ SV264 )
        = $false )
      | ( ( in @ SV289 @ ( set_intersection2 @ SV238 @ SV264 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1238]) ).

thf(1267,plain,
    ! [SV199: $i,SV226: $i] :
      ( ( ( in @ ( sK3_C @ SV226 @ SV199 ) @ SV226 )
        = $false )
      | ( ( in @ ( sK3_C @ SV226 @ SV199 ) @ SV199 )
        = $false )
      | ( ( SV199 = SV226 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1240]) ).

thf(1268,plain,
    ! [SV297: $i,SV291: $i] :
      ( ( ( ~ ( proper_subset @ SV291 @ SV297 ) )
        = $true )
      | ( ( ( SV291 != SV297 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1242]) ).

thf(1269,plain,
    ! [SV298: $i,SV292: $i] :
      ( ( ( ~ ( proper_subset @ SV292 @ SV298 ) )
        = $true )
      | ( ( subset @ SV292 @ SV298 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1243]) ).

thf(1270,plain,
    ! [SV242: $i,SV266: $i] :
      ( ( ( ( ( sK12_C @ SV266 @ SV242 )
           != SV242 )
          | ~ ( in @ ( sK12_C @ SV266 @ SV242 ) @ SV266 ) )
        = $true )
      | ( ( SV266
          = ( singleton @ SV242 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1244]) ).

thf(1271,plain,
    ! [SV242: $i,SV266: $i] :
      ( ( ( ( ( sK12_C @ SV266 @ SV242 )
            = SV242 )
          | ( in @ ( sK12_C @ SV266 @ SV242 ) @ SV266 ) )
        = $true )
      | ( ( SV266
          = ( singleton @ SV242 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1245]) ).

thf(1272,plain,
    ! [SV267: $i,SV243: $i] :
      ( ( ( ~ ! [SY362: $i] :
                ( ( SY362 != SV243 )
                | ( in @ SY362 @ SV267 ) ) )
        = $false )
      | ( ( SV267
          = ( singleton @ SV243 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1246]) ).

thf(1273,plain,
    ! [SV243: $i,SV267: $i] :
      ( ( ( ~ ! [SY363: $i] :
                ( ~ ( in @ SY363 @ SV267 )
                | ( SY363 = SV243 ) ) )
        = $false )
      | ( ( SV267
          = ( singleton @ SV243 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1246]) ).

thf(1274,plain,
    ! [SV200: $i,SV268: $i,SV285: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK7_D @ SV285 @ SV268 @ SV200 ) @ SV200 )
              | ~ ( in @ ( sK7_D @ SV285 @ SV268 @ SV200 ) @ SV268 )
              | ~ ( in @ ( sK7_D @ SV285 @ SV268 @ SV200 ) @ SV285 ) ) )
        = $false )
      | ( ( SV285
          = ( set_intersection2 @ SV200 @ SV268 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1247]) ).

thf(1275,plain,
    ! [SV200: $i,SV268: $i,SV285: $i] :
      ( ( ( ~ ~ ( ~ ( ( in @ ( sK7_D @ SV285 @ SV268 @ SV200 ) @ SV200 )
                    | ( in @ ( sK7_D @ SV285 @ SV268 @ SV200 ) @ SV285 ) )
                | ~ ( ( in @ ( sK7_D @ SV285 @ SV268 @ SV200 ) @ SV268 )
                    | ( in @ ( sK7_D @ SV285 @ SV268 @ SV200 ) @ SV285 ) ) ) )
        = $false )
      | ( ( SV285
          = ( set_intersection2 @ SV200 @ SV268 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1247]) ).

thf(1276,plain,
    ! [SV286: $i,SV269: $i,SV200: $i] :
      ( ( ( ~ ! [SY381: $i] :
                ( ~ ( in @ SY381 @ SV200 )
                | ~ ( in @ SY381 @ SV269 )
                | ( in @ SY381 @ SV286 ) )
          | ~ ~ ( ~ ! [SY382: $i] :
                      ( ~ ( in @ SY382 @ SV286 )
                      | ( in @ SY382 @ SV200 ) )
                | ~ ! [SY383: $i] :
                      ( ~ ( in @ SY383 @ SV286 )
                      | ( in @ SY383 @ SV269 ) ) ) )
        = $false )
      | ( ( SV286
          = ( set_intersection2 @ SV200 @ SV269 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1248]) ).

thf(1277,plain,
    ! [SV244: $i,SV270: $i] :
      ( ( ( subset @ SV270 @ SV244 )
        = $false )
      | ( ( subset @ SV244 @ SV270 )
        = $false )
      | ( ( SV244 = SV270 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1249]) ).

thf(1278,plain,
    ! [SV299: $i,SV293: $i] :
      ( ( ( ( SV293 != SV299 ) )
        = $true )
      | ( ( subset @ SV293 @ SV299 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1250]) ).

thf(1279,plain,
    ! [SV300: $i,SV294: $i] :
      ( ( ( ( SV294 != SV300 ) )
        = $true )
      | ( ( subset @ SV300 @ SV294 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1251]) ).

thf(1280,plain,
    ! [SV251: $i,SV277: $i] :
      ( ( ( in @ ( sK14_C @ SV277 @ SV251 ) @ SV251 )
        = $true )
      | ( ( disjoint @ SV251 @ SV277 )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1252]) ).

thf(1281,plain,
    ! [SV251: $i,SV277: $i] :
      ( ( ( in @ ( sK14_C @ SV277 @ SV251 ) @ SV277 )
        = $true )
      | ( ( disjoint @ SV251 @ SV277 )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1253]) ).

thf(1282,plain,
    ! [SV278: $i,SV252: $i,SV295: $i] :
      ( ( ( in @ SV295 @ SV252 )
        = $false )
      | ( ( ~ ( in @ SV295 @ SV278 ) )
        = $true )
      | ( ( ~ ( disjoint @ SV252 @ SV278 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1254]) ).

thf(1283,plain,
    ! [SV201: $i,SV279: $i,SV287: $i] :
      ( ( ( ~ ~ ( ~ ( ~ ( in @ ( sK10_D @ SV287 @ SV279 @ SV201 ) @ SV287 )
                    | ( ( sK10_D @ SV287 @ SV279 @ SV201 )
                     != SV201 ) )
                | ~ ( ~ ( in @ ( sK10_D @ SV287 @ SV279 @ SV201 ) @ SV287 )
                    | ( ( sK10_D @ SV287 @ SV279 @ SV201 )
                     != SV279 ) ) ) )
        = $false )
      | ( ( SV287
          = ( unordered_pair @ SV201 @ SV279 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1255]) ).

thf(1284,plain,
    ! [SV201: $i,SV279: $i,SV287: $i] :
      ( ( ( ~ ( ( in @ ( sK10_D @ SV287 @ SV279 @ SV201 ) @ SV287 )
              | ( ( sK10_D @ SV287 @ SV279 @ SV201 )
                = SV201 )
              | ( ( sK10_D @ SV287 @ SV279 @ SV201 )
                = SV279 ) ) )
        = $false )
      | ( ( SV287
          = ( unordered_pair @ SV201 @ SV279 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1255]) ).

thf(1285,plain,
    ! [SV280: $i,SV201: $i,SV288: $i] :
      ( ( ( ~ ! [SY384: $i] :
                ( ~ ( in @ SY384 @ SV288 )
                | ( SY384 = SV201 )
                | ( SY384 = SV280 ) )
          | ~ ~ ( ~ ! [SY385: $i] :
                      ( ( SY385 != SV201 )
                      | ( in @ SY385 @ SV288 ) )
                | ~ ! [SY386: $i] :
                      ( ( SY386 != SV280 )
                      | ( in @ SY386 @ SV288 ) ) ) )
        = $false )
      | ( ( SV288
          = ( unordered_pair @ SV201 @ SV280 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1256]) ).

thf(1286,plain,
    ! [SV197: $i,SV257: $i,SV281: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ ( sK9_D @ SV281 @ SV257 @ SV197 ) @ SV281 )
                  | ~ ( in @ ( sK9_D @ SV281 @ SV257 @ SV197 ) @ SV197 ) )
              | ~ ( ~ ( in @ ( sK9_D @ SV281 @ SV257 @ SV197 ) @ SV281 )
                  | ~ ( in @ ( sK9_D @ SV281 @ SV257 @ SV197 ) @ SV257 ) ) ) )
        = $true )
      | ( ( SV281
          = ( set_union2 @ SV197 @ SV257 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1257]) ).

thf(1287,plain,
    ! [SV197: $i,SV257: $i,SV281: $i] :
      ( ( ( ( in @ ( sK9_D @ SV281 @ SV257 @ SV197 ) @ SV281 )
          | ( in @ ( sK9_D @ SV281 @ SV257 @ SV197 ) @ SV197 )
          | ( in @ ( sK9_D @ SV281 @ SV257 @ SV197 ) @ SV257 ) )
        = $true )
      | ( ( SV281
          = ( set_union2 @ SV197 @ SV257 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1258]) ).

thf(1288,plain,
    ! [SV258: $i,SV197: $i,SV282: $i] :
      ( ( ( ~ ! [SY375: $i] :
                ( ~ ( in @ SY375 @ SV282 )
                | ( in @ SY375 @ SV197 )
                | ( in @ SY375 @ SV258 ) ) )
        = $false )
      | ( ( SV282
          = ( set_union2 @ SV197 @ SV258 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1259]) ).

thf(1289,plain,
    ! [SV258: $i,SV282: $i,SV197: $i] :
      ( ( ( ~ ~ ( ~ ! [SY376: $i] :
                      ( ~ ( in @ SY376 @ SV197 )
                      | ( in @ SY376 @ SV282 ) )
                | ~ ! [SY377: $i] :
                      ( ~ ( in @ SY377 @ SV258 )
                      | ( in @ SY377 @ SV282 ) ) ) )
        = $false )
      | ( ( SV282
          = ( set_union2 @ SV197 @ SV258 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1259]) ).

thf(1290,plain,
    ! [SV235: $i,SV259: $i] :
      ( ( ( in @ ( sK8_C @ SV259 @ SV235 ) @ SV259 )
        = $false )
      | ( ( subset @ SV235 @ SV259 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1261]) ).

thf(1291,plain,
    ! [SV260: $i,SV236: $i,SV296: $i] :
      ( ( ( in @ SV296 @ SV236 )
        = $false )
      | ( ( in @ SV296 @ SV260 )
        = $true )
      | ( ( subset @ SV236 @ SV260 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1262]) ).

thf(1292,plain,
    ! [SV198: $i,SV261: $i,SV283: $i] :
      ( ( ( ~ ( in @ ( sK6_D @ SV283 @ SV261 @ SV198 ) @ SV198 )
          | ( in @ ( sK6_D @ SV283 @ SV261 @ SV198 ) @ SV261 )
          | ~ ( in @ ( sK6_D @ SV283 @ SV261 @ SV198 ) @ SV283 ) )
        = $true )
      | ( ( SV283
          = ( set_difference @ SV198 @ SV261 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1263]) ).

thf(1293,plain,
    ! [SV198: $i,SV261: $i,SV283: $i] :
      ( ( ( ~ ( ~ ( ( in @ ( sK6_D @ SV283 @ SV261 @ SV198 ) @ SV198 )
                  | ( in @ ( sK6_D @ SV283 @ SV261 @ SV198 ) @ SV283 ) )
              | ~ ( ~ ( in @ ( sK6_D @ SV283 @ SV261 @ SV198 ) @ SV261 )
                  | ( in @ ( sK6_D @ SV283 @ SV261 @ SV198 ) @ SV283 ) ) ) )
        = $true )
      | ( ( SV283
          = ( set_difference @ SV198 @ SV261 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1264]) ).

thf(1294,plain,
    ! [SV284: $i,SV262: $i,SV198: $i] :
      ( ( ( ~ ! [SY378: $i] :
                ( ~ ( in @ SY378 @ SV198 )
                | ( in @ SY378 @ SV262 )
                | ( in @ SY378 @ SV284 ) ) )
        = $false )
      | ( ( SV284
          = ( set_difference @ SV198 @ SV262 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1265]) ).

thf(1295,plain,
    ! [SV262: $i,SV198: $i,SV284: $i] :
      ( ( ( ~ ~ ( ~ ! [SY379: $i] :
                      ( ~ ( in @ SY379 @ SV284 )
                      | ( in @ SY379 @ SV198 ) )
                | ~ ! [SY380: $i] :
                      ( ~ ( in @ SY380 @ SV284 )
                      | ~ ( in @ SY380 @ SV262 ) ) ) )
        = $false )
      | ( ( SV284
          = ( set_difference @ SV198 @ SV262 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1265]) ).

thf(1296,plain,
    ! [SV297: $i,SV291: $i] :
      ( ( ( proper_subset @ SV291 @ SV297 )
        = $false )
      | ( ( ( SV291 != SV297 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1268]) ).

thf(1297,plain,
    ! [SV298: $i,SV292: $i] :
      ( ( ( proper_subset @ SV292 @ SV298 )
        = $false )
      | ( ( subset @ SV292 @ SV298 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1269]) ).

thf(1298,plain,
    ! [SV242: $i,SV266: $i] :
      ( ( ( ( ( sK12_C @ SV266 @ SV242 )
           != SV242 ) )
        = $true )
      | ( ( ~ ( in @ ( sK12_C @ SV266 @ SV242 ) @ SV266 ) )
        = $true )
      | ( ( SV266
          = ( singleton @ SV242 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1270]) ).

thf(1299,plain,
    ! [SV242: $i,SV266: $i] :
      ( ( ( ( sK12_C @ SV266 @ SV242 )
          = SV242 )
        = $true )
      | ( ( in @ ( sK12_C @ SV266 @ SV242 ) @ SV266 )
        = $true )
      | ( ( SV266
          = ( singleton @ SV242 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1271]) ).

thf(1300,plain,
    ! [SV267: $i,SV243: $i] :
      ( ( ( ! [SY362: $i] :
              ( ( SY362 != SV243 )
              | ( in @ SY362 @ SV267 ) ) )
        = $true )
      | ( ( SV267
          = ( singleton @ SV243 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1272]) ).

thf(1301,plain,
    ! [SV243: $i,SV267: $i] :
      ( ( ( ! [SY363: $i] :
              ( ~ ( in @ SY363 @ SV267 )
              | ( SY363 = SV243 ) ) )
        = $true )
      | ( ( SV267
          = ( singleton @ SV243 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1273]) ).

thf(1302,plain,
    ! [SV200: $i,SV268: $i,SV285: $i] :
      ( ( ( ~ ( in @ ( sK7_D @ SV285 @ SV268 @ SV200 ) @ SV200 )
          | ~ ( in @ ( sK7_D @ SV285 @ SV268 @ SV200 ) @ SV268 )
          | ~ ( in @ ( sK7_D @ SV285 @ SV268 @ SV200 ) @ SV285 ) )
        = $true )
      | ( ( SV285
          = ( set_intersection2 @ SV200 @ SV268 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1274]) ).

thf(1303,plain,
    ! [SV200: $i,SV268: $i,SV285: $i] :
      ( ( ( ~ ( ~ ( ( in @ ( sK7_D @ SV285 @ SV268 @ SV200 ) @ SV200 )
                  | ( in @ ( sK7_D @ SV285 @ SV268 @ SV200 ) @ SV285 ) )
              | ~ ( ( in @ ( sK7_D @ SV285 @ SV268 @ SV200 ) @ SV268 )
                  | ( in @ ( sK7_D @ SV285 @ SV268 @ SV200 ) @ SV285 ) ) ) )
        = $true )
      | ( ( SV285
          = ( set_intersection2 @ SV200 @ SV268 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1275]) ).

thf(1304,plain,
    ! [SV286: $i,SV269: $i,SV200: $i] :
      ( ( ( ~ ! [SY381: $i] :
                ( ~ ( in @ SY381 @ SV200 )
                | ~ ( in @ SY381 @ SV269 )
                | ( in @ SY381 @ SV286 ) ) )
        = $false )
      | ( ( SV286
          = ( set_intersection2 @ SV200 @ SV269 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1276]) ).

thf(1305,plain,
    ! [SV269: $i,SV200: $i,SV286: $i] :
      ( ( ( ~ ~ ( ~ ! [SY382: $i] :
                      ( ~ ( in @ SY382 @ SV286 )
                      | ( in @ SY382 @ SV200 ) )
                | ~ ! [SY383: $i] :
                      ( ~ ( in @ SY383 @ SV286 )
                      | ( in @ SY383 @ SV269 ) ) ) )
        = $false )
      | ( ( SV286
          = ( set_intersection2 @ SV200 @ SV269 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1276]) ).

thf(1306,plain,
    ! [SV299: $i,SV293: $i] :
      ( ( ( SV293 = SV299 )
        = $false )
      | ( ( subset @ SV293 @ SV299 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1278]) ).

thf(1307,plain,
    ! [SV300: $i,SV294: $i] :
      ( ( ( SV294 = SV300 )
        = $false )
      | ( ( subset @ SV300 @ SV294 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1279]) ).

thf(1308,plain,
    ! [SV252: $i,SV278: $i,SV295: $i] :
      ( ( ( in @ SV295 @ SV278 )
        = $false )
      | ( ( in @ SV295 @ SV252 )
        = $false )
      | ( ( ~ ( disjoint @ SV252 @ SV278 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1282]) ).

thf(1309,plain,
    ! [SV201: $i,SV279: $i,SV287: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ ( sK10_D @ SV287 @ SV279 @ SV201 ) @ SV287 )
                  | ( ( sK10_D @ SV287 @ SV279 @ SV201 )
                   != SV201 ) )
              | ~ ( ~ ( in @ ( sK10_D @ SV287 @ SV279 @ SV201 ) @ SV287 )
                  | ( ( sK10_D @ SV287 @ SV279 @ SV201 )
                   != SV279 ) ) ) )
        = $true )
      | ( ( SV287
          = ( unordered_pair @ SV201 @ SV279 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1283]) ).

thf(1310,plain,
    ! [SV201: $i,SV279: $i,SV287: $i] :
      ( ( ( ( in @ ( sK10_D @ SV287 @ SV279 @ SV201 ) @ SV287 )
          | ( ( sK10_D @ SV287 @ SV279 @ SV201 )
            = SV201 )
          | ( ( sK10_D @ SV287 @ SV279 @ SV201 )
            = SV279 ) )
        = $true )
      | ( ( SV287
          = ( unordered_pair @ SV201 @ SV279 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1284]) ).

thf(1311,plain,
    ! [SV280: $i,SV201: $i,SV288: $i] :
      ( ( ( ~ ! [SY384: $i] :
                ( ~ ( in @ SY384 @ SV288 )
                | ( SY384 = SV201 )
                | ( SY384 = SV280 ) ) )
        = $false )
      | ( ( SV288
          = ( unordered_pair @ SV201 @ SV280 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1285]) ).

thf(1312,plain,
    ! [SV280: $i,SV288: $i,SV201: $i] :
      ( ( ( ~ ~ ( ~ ! [SY385: $i] :
                      ( ( SY385 != SV201 )
                      | ( in @ SY385 @ SV288 ) )
                | ~ ! [SY386: $i] :
                      ( ( SY386 != SV280 )
                      | ( in @ SY386 @ SV288 ) ) ) )
        = $false )
      | ( ( SV288
          = ( unordered_pair @ SV201 @ SV280 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1285]) ).

thf(1313,plain,
    ! [SV197: $i,SV257: $i,SV281: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK9_D @ SV281 @ SV257 @ SV197 ) @ SV281 )
              | ~ ( in @ ( sK9_D @ SV281 @ SV257 @ SV197 ) @ SV197 ) )
          | ~ ( ~ ( in @ ( sK9_D @ SV281 @ SV257 @ SV197 ) @ SV281 )
              | ~ ( in @ ( sK9_D @ SV281 @ SV257 @ SV197 ) @ SV257 ) ) )
        = $false )
      | ( ( SV281
          = ( set_union2 @ SV197 @ SV257 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1286]) ).

thf(1314,plain,
    ! [SV197: $i,SV257: $i,SV281: $i] :
      ( ( ( in @ ( sK9_D @ SV281 @ SV257 @ SV197 ) @ SV281 )
        = $true )
      | ( ( ( in @ ( sK9_D @ SV281 @ SV257 @ SV197 ) @ SV197 )
          | ( in @ ( sK9_D @ SV281 @ SV257 @ SV197 ) @ SV257 ) )
        = $true )
      | ( ( SV281
          = ( set_union2 @ SV197 @ SV257 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1287]) ).

thf(1315,plain,
    ! [SV258: $i,SV197: $i,SV282: $i] :
      ( ( ( ! [SY375: $i] :
              ( ~ ( in @ SY375 @ SV282 )
              | ( in @ SY375 @ SV197 )
              | ( in @ SY375 @ SV258 ) ) )
        = $true )
      | ( ( SV282
          = ( set_union2 @ SV197 @ SV258 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1288]) ).

thf(1316,plain,
    ! [SV258: $i,SV282: $i,SV197: $i] :
      ( ( ( ~ ( ~ ! [SY376: $i] :
                    ( ~ ( in @ SY376 @ SV197 )
                    | ( in @ SY376 @ SV282 ) )
              | ~ ! [SY377: $i] :
                    ( ~ ( in @ SY377 @ SV258 )
                    | ( in @ SY377 @ SV282 ) ) ) )
        = $true )
      | ( ( SV282
          = ( set_union2 @ SV197 @ SV258 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1289]) ).

thf(1317,plain,
    ! [SV198: $i,SV261: $i,SV283: $i] :
      ( ( ( ~ ( in @ ( sK6_D @ SV283 @ SV261 @ SV198 ) @ SV198 )
          | ( in @ ( sK6_D @ SV283 @ SV261 @ SV198 ) @ SV261 ) )
        = $true )
      | ( ( ~ ( in @ ( sK6_D @ SV283 @ SV261 @ SV198 ) @ SV283 ) )
        = $true )
      | ( ( SV283
          = ( set_difference @ SV198 @ SV261 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1292]) ).

thf(1318,plain,
    ! [SV198: $i,SV261: $i,SV283: $i] :
      ( ( ( ~ ( ( in @ ( sK6_D @ SV283 @ SV261 @ SV198 ) @ SV198 )
              | ( in @ ( sK6_D @ SV283 @ SV261 @ SV198 ) @ SV283 ) )
          | ~ ( ~ ( in @ ( sK6_D @ SV283 @ SV261 @ SV198 ) @ SV261 )
              | ( in @ ( sK6_D @ SV283 @ SV261 @ SV198 ) @ SV283 ) ) )
        = $false )
      | ( ( SV283
          = ( set_difference @ SV198 @ SV261 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1293]) ).

thf(1319,plain,
    ! [SV284: $i,SV262: $i,SV198: $i] :
      ( ( ( ! [SY378: $i] :
              ( ~ ( in @ SY378 @ SV198 )
              | ( in @ SY378 @ SV262 )
              | ( in @ SY378 @ SV284 ) ) )
        = $true )
      | ( ( SV284
          = ( set_difference @ SV198 @ SV262 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1294]) ).

thf(1320,plain,
    ! [SV262: $i,SV198: $i,SV284: $i] :
      ( ( ( ~ ( ~ ! [SY379: $i] :
                    ( ~ ( in @ SY379 @ SV284 )
                    | ( in @ SY379 @ SV198 ) )
              | ~ ! [SY380: $i] :
                    ( ~ ( in @ SY380 @ SV284 )
                    | ~ ( in @ SY380 @ SV262 ) ) ) )
        = $true )
      | ( ( SV284
          = ( set_difference @ SV198 @ SV262 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1295]) ).

thf(1321,plain,
    ! [SV297: $i,SV291: $i] :
      ( ( ( SV291 = SV297 )
        = $false )
      | ( ( proper_subset @ SV291 @ SV297 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1296]) ).

thf(1322,plain,
    ! [SV242: $i,SV266: $i] :
      ( ( ( ( sK12_C @ SV266 @ SV242 )
          = SV242 )
        = $false )
      | ( ( ~ ( in @ ( sK12_C @ SV266 @ SV242 ) @ SV266 ) )
        = $true )
      | ( ( SV266
          = ( singleton @ SV242 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1298]) ).

thf(1323,plain,
    ! [SV267: $i,SV243: $i,SV301: $i] :
      ( ( ( ( SV301 != SV243 )
          | ( in @ SV301 @ SV267 ) )
        = $true )
      | ( ( SV267
          = ( singleton @ SV243 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1300]) ).

thf(1324,plain,
    ! [SV243: $i,SV267: $i,SV302: $i] :
      ( ( ( ~ ( in @ SV302 @ SV267 )
          | ( SV302 = SV243 ) )
        = $true )
      | ( ( SV267
          = ( singleton @ SV243 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1301]) ).

thf(1325,plain,
    ! [SV200: $i,SV268: $i,SV285: $i] :
      ( ( ( ~ ( in @ ( sK7_D @ SV285 @ SV268 @ SV200 ) @ SV200 )
          | ~ ( in @ ( sK7_D @ SV285 @ SV268 @ SV200 ) @ SV268 ) )
        = $true )
      | ( ( ~ ( in @ ( sK7_D @ SV285 @ SV268 @ SV200 ) @ SV285 ) )
        = $true )
      | ( ( SV285
          = ( set_intersection2 @ SV200 @ SV268 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1302]) ).

thf(1326,plain,
    ! [SV200: $i,SV268: $i,SV285: $i] :
      ( ( ( ~ ( ( in @ ( sK7_D @ SV285 @ SV268 @ SV200 ) @ SV200 )
              | ( in @ ( sK7_D @ SV285 @ SV268 @ SV200 ) @ SV285 ) )
          | ~ ( ( in @ ( sK7_D @ SV285 @ SV268 @ SV200 ) @ SV268 )
              | ( in @ ( sK7_D @ SV285 @ SV268 @ SV200 ) @ SV285 ) ) )
        = $false )
      | ( ( SV285
          = ( set_intersection2 @ SV200 @ SV268 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1303]) ).

thf(1327,plain,
    ! [SV286: $i,SV269: $i,SV200: $i] :
      ( ( ( ! [SY381: $i] :
              ( ~ ( in @ SY381 @ SV200 )
              | ~ ( in @ SY381 @ SV269 )
              | ( in @ SY381 @ SV286 ) ) )
        = $true )
      | ( ( SV286
          = ( set_intersection2 @ SV200 @ SV269 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1304]) ).

thf(1328,plain,
    ! [SV269: $i,SV200: $i,SV286: $i] :
      ( ( ( ~ ( ~ ! [SY382: $i] :
                    ( ~ ( in @ SY382 @ SV286 )
                    | ( in @ SY382 @ SV200 ) )
              | ~ ! [SY383: $i] :
                    ( ~ ( in @ SY383 @ SV286 )
                    | ( in @ SY383 @ SV269 ) ) ) )
        = $true )
      | ( ( SV286
          = ( set_intersection2 @ SV200 @ SV269 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1305]) ).

thf(1329,plain,
    ! [SV295: $i,SV278: $i,SV252: $i] :
      ( ( ( disjoint @ SV252 @ SV278 )
        = $false )
      | ( ( in @ SV295 @ SV252 )
        = $false )
      | ( ( in @ SV295 @ SV278 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1308]) ).

thf(1330,plain,
    ! [SV201: $i,SV279: $i,SV287: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK10_D @ SV287 @ SV279 @ SV201 ) @ SV287 )
              | ( ( sK10_D @ SV287 @ SV279 @ SV201 )
               != SV201 ) )
          | ~ ( ~ ( in @ ( sK10_D @ SV287 @ SV279 @ SV201 ) @ SV287 )
              | ( ( sK10_D @ SV287 @ SV279 @ SV201 )
               != SV279 ) ) )
        = $false )
      | ( ( SV287
          = ( unordered_pair @ SV201 @ SV279 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1309]) ).

thf(1331,plain,
    ! [SV201: $i,SV279: $i,SV287: $i] :
      ( ( ( in @ ( sK10_D @ SV287 @ SV279 @ SV201 ) @ SV287 )
        = $true )
      | ( ( ( ( sK10_D @ SV287 @ SV279 @ SV201 )
            = SV201 )
          | ( ( sK10_D @ SV287 @ SV279 @ SV201 )
            = SV279 ) )
        = $true )
      | ( ( SV287
          = ( unordered_pair @ SV201 @ SV279 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1310]) ).

thf(1332,plain,
    ! [SV280: $i,SV201: $i,SV288: $i] :
      ( ( ( ! [SY384: $i] :
              ( ~ ( in @ SY384 @ SV288 )
              | ( SY384 = SV201 )
              | ( SY384 = SV280 ) ) )
        = $true )
      | ( ( SV288
          = ( unordered_pair @ SV201 @ SV280 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1311]) ).

thf(1333,plain,
    ! [SV280: $i,SV288: $i,SV201: $i] :
      ( ( ( ~ ( ~ ! [SY385: $i] :
                    ( ( SY385 != SV201 )
                    | ( in @ SY385 @ SV288 ) )
              | ~ ! [SY386: $i] :
                    ( ( SY386 != SV280 )
                    | ( in @ SY386 @ SV288 ) ) ) )
        = $true )
      | ( ( SV288
          = ( unordered_pair @ SV201 @ SV280 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1312]) ).

thf(1334,plain,
    ! [SV197: $i,SV257: $i,SV281: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK9_D @ SV281 @ SV257 @ SV197 ) @ SV281 )
              | ~ ( in @ ( sK9_D @ SV281 @ SV257 @ SV197 ) @ SV197 ) ) )
        = $false )
      | ( ( SV281
          = ( set_union2 @ SV197 @ SV257 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1313]) ).

thf(1335,plain,
    ! [SV197: $i,SV257: $i,SV281: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK9_D @ SV281 @ SV257 @ SV197 ) @ SV281 )
              | ~ ( in @ ( sK9_D @ SV281 @ SV257 @ SV197 ) @ SV257 ) ) )
        = $false )
      | ( ( SV281
          = ( set_union2 @ SV197 @ SV257 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1313]) ).

thf(1336,plain,
    ! [SV197: $i,SV257: $i,SV281: $i] :
      ( ( ( in @ ( sK9_D @ SV281 @ SV257 @ SV197 ) @ SV197 )
        = $true )
      | ( ( in @ ( sK9_D @ SV281 @ SV257 @ SV197 ) @ SV257 )
        = $true )
      | ( ( in @ ( sK9_D @ SV281 @ SV257 @ SV197 ) @ SV281 )
        = $true )
      | ( ( SV281
          = ( set_union2 @ SV197 @ SV257 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1314]) ).

thf(1337,plain,
    ! [SV258: $i,SV197: $i,SV282: $i,SV303: $i] :
      ( ( ( ~ ( in @ SV303 @ SV282 )
          | ( in @ SV303 @ SV197 )
          | ( in @ SV303 @ SV258 ) )
        = $true )
      | ( ( SV282
          = ( set_union2 @ SV197 @ SV258 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1315]) ).

thf(1338,plain,
    ! [SV258: $i,SV282: $i,SV197: $i] :
      ( ( ( ~ ! [SY376: $i] :
                ( ~ ( in @ SY376 @ SV197 )
                | ( in @ SY376 @ SV282 ) )
          | ~ ! [SY377: $i] :
                ( ~ ( in @ SY377 @ SV258 )
                | ( in @ SY377 @ SV282 ) ) )
        = $false )
      | ( ( SV282
          = ( set_union2 @ SV197 @ SV258 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1316]) ).

thf(1339,plain,
    ! [SV198: $i,SV261: $i,SV283: $i] :
      ( ( ( ~ ( in @ ( sK6_D @ SV283 @ SV261 @ SV198 ) @ SV198 ) )
        = $true )
      | ( ( in @ ( sK6_D @ SV283 @ SV261 @ SV198 ) @ SV261 )
        = $true )
      | ( ( ~ ( in @ ( sK6_D @ SV283 @ SV261 @ SV198 ) @ SV283 ) )
        = $true )
      | ( ( SV283
          = ( set_difference @ SV198 @ SV261 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1317]) ).

thf(1340,plain,
    ! [SV198: $i,SV261: $i,SV283: $i] :
      ( ( ( ~ ( ( in @ ( sK6_D @ SV283 @ SV261 @ SV198 ) @ SV198 )
              | ( in @ ( sK6_D @ SV283 @ SV261 @ SV198 ) @ SV283 ) ) )
        = $false )
      | ( ( SV283
          = ( set_difference @ SV198 @ SV261 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1318]) ).

thf(1341,plain,
    ! [SV198: $i,SV261: $i,SV283: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK6_D @ SV283 @ SV261 @ SV198 ) @ SV261 )
              | ( in @ ( sK6_D @ SV283 @ SV261 @ SV198 ) @ SV283 ) ) )
        = $false )
      | ( ( SV283
          = ( set_difference @ SV198 @ SV261 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1318]) ).

thf(1342,plain,
    ! [SV284: $i,SV262: $i,SV198: $i,SV304: $i] :
      ( ( ( ~ ( in @ SV304 @ SV198 )
          | ( in @ SV304 @ SV262 )
          | ( in @ SV304 @ SV284 ) )
        = $true )
      | ( ( SV284
          = ( set_difference @ SV198 @ SV262 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1319]) ).

thf(1343,plain,
    ! [SV262: $i,SV198: $i,SV284: $i] :
      ( ( ( ~ ! [SY379: $i] :
                ( ~ ( in @ SY379 @ SV284 )
                | ( in @ SY379 @ SV198 ) )
          | ~ ! [SY380: $i] :
                ( ~ ( in @ SY380 @ SV284 )
                | ~ ( in @ SY380 @ SV262 ) ) )
        = $false )
      | ( ( SV284
          = ( set_difference @ SV198 @ SV262 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1320]) ).

thf(1344,plain,
    ! [SV242: $i,SV266: $i] :
      ( ( ( in @ ( sK12_C @ SV266 @ SV242 ) @ SV266 )
        = $false )
      | ( ( ( sK12_C @ SV266 @ SV242 )
          = SV242 )
        = $false )
      | ( ( SV266
          = ( singleton @ SV242 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1322]) ).

thf(1345,plain,
    ! [SV267: $i,SV243: $i,SV301: $i] :
      ( ( ( ( SV301 != SV243 ) )
        = $true )
      | ( ( in @ SV301 @ SV267 )
        = $true )
      | ( ( SV267
          = ( singleton @ SV243 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1323]) ).

thf(1346,plain,
    ! [SV243: $i,SV267: $i,SV302: $i] :
      ( ( ( ~ ( in @ SV302 @ SV267 ) )
        = $true )
      | ( ( SV302 = SV243 )
        = $true )
      | ( ( SV267
          = ( singleton @ SV243 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1324]) ).

thf(1347,plain,
    ! [SV200: $i,SV268: $i,SV285: $i] :
      ( ( ( ~ ( in @ ( sK7_D @ SV285 @ SV268 @ SV200 ) @ SV200 ) )
        = $true )
      | ( ( ~ ( in @ ( sK7_D @ SV285 @ SV268 @ SV200 ) @ SV268 ) )
        = $true )
      | ( ( ~ ( in @ ( sK7_D @ SV285 @ SV268 @ SV200 ) @ SV285 ) )
        = $true )
      | ( ( SV285
          = ( set_intersection2 @ SV200 @ SV268 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1325]) ).

thf(1348,plain,
    ! [SV200: $i,SV268: $i,SV285: $i] :
      ( ( ( ~ ( ( in @ ( sK7_D @ SV285 @ SV268 @ SV200 ) @ SV200 )
              | ( in @ ( sK7_D @ SV285 @ SV268 @ SV200 ) @ SV285 ) ) )
        = $false )
      | ( ( SV285
          = ( set_intersection2 @ SV200 @ SV268 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1326]) ).

thf(1349,plain,
    ! [SV200: $i,SV268: $i,SV285: $i] :
      ( ( ( ~ ( ( in @ ( sK7_D @ SV285 @ SV268 @ SV200 ) @ SV268 )
              | ( in @ ( sK7_D @ SV285 @ SV268 @ SV200 ) @ SV285 ) ) )
        = $false )
      | ( ( SV285
          = ( set_intersection2 @ SV200 @ SV268 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1326]) ).

thf(1350,plain,
    ! [SV286: $i,SV269: $i,SV200: $i,SV305: $i] :
      ( ( ( ~ ( in @ SV305 @ SV200 )
          | ~ ( in @ SV305 @ SV269 )
          | ( in @ SV305 @ SV286 ) )
        = $true )
      | ( ( SV286
          = ( set_intersection2 @ SV200 @ SV269 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1327]) ).

thf(1351,plain,
    ! [SV269: $i,SV200: $i,SV286: $i] :
      ( ( ( ~ ! [SY382: $i] :
                ( ~ ( in @ SY382 @ SV286 )
                | ( in @ SY382 @ SV200 ) )
          | ~ ! [SY383: $i] :
                ( ~ ( in @ SY383 @ SV286 )
                | ( in @ SY383 @ SV269 ) ) )
        = $false )
      | ( ( SV286
          = ( set_intersection2 @ SV200 @ SV269 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1328]) ).

thf(1352,plain,
    ! [SV201: $i,SV279: $i,SV287: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK10_D @ SV287 @ SV279 @ SV201 ) @ SV287 )
              | ( ( sK10_D @ SV287 @ SV279 @ SV201 )
               != SV201 ) ) )
        = $false )
      | ( ( SV287
          = ( unordered_pair @ SV201 @ SV279 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1330]) ).

thf(1353,plain,
    ! [SV201: $i,SV279: $i,SV287: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK10_D @ SV287 @ SV279 @ SV201 ) @ SV287 )
              | ( ( sK10_D @ SV287 @ SV279 @ SV201 )
               != SV279 ) ) )
        = $false )
      | ( ( SV287
          = ( unordered_pair @ SV201 @ SV279 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[1330]) ).

thf(1354,plain,
    ! [SV201: $i,SV279: $i,SV287: $i] :
      ( ( ( ( sK10_D @ SV287 @ SV279 @ SV201 )
          = SV201 )
        = $true )
      | ( ( ( sK10_D @ SV287 @ SV279 @ SV201 )
          = SV279 )
        = $true )
      | ( ( in @ ( sK10_D @ SV287 @ SV279 @ SV201 ) @ SV287 )
        = $true )
      | ( ( SV287
          = ( unordered_pair @ SV201 @ SV279 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1331]) ).

thf(1355,plain,
    ! [SV280: $i,SV201: $i,SV288: $i,SV306: $i] :
      ( ( ( ~ ( in @ SV306 @ SV288 )
          | ( SV306 = SV201 )
          | ( SV306 = SV280 ) )
        = $true )
      | ( ( SV288
          = ( unordered_pair @ SV201 @ SV280 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1332]) ).

thf(1356,plain,
    ! [SV280: $i,SV288: $i,SV201: $i] :
      ( ( ( ~ ! [SY385: $i] :
                ( ( SY385 != SV201 )
                | ( in @ SY385 @ SV288 ) )
          | ~ ! [SY386: $i] :
                ( ( SY386 != SV280 )
                | ( in @ SY386 @ SV288 ) ) )
        = $false )
      | ( ( SV288
          = ( unordered_pair @ SV201 @ SV280 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1333]) ).

thf(1357,plain,
    ! [SV197: $i,SV257: $i,SV281: $i] :
      ( ( ( ~ ( in @ ( sK9_D @ SV281 @ SV257 @ SV197 ) @ SV281 )
          | ~ ( in @ ( sK9_D @ SV281 @ SV257 @ SV197 ) @ SV197 ) )
        = $true )
      | ( ( SV281
          = ( set_union2 @ SV197 @ SV257 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1334]) ).

thf(1358,plain,
    ! [SV197: $i,SV257: $i,SV281: $i] :
      ( ( ( ~ ( in @ ( sK9_D @ SV281 @ SV257 @ SV197 ) @ SV281 )
          | ~ ( in @ ( sK9_D @ SV281 @ SV257 @ SV197 ) @ SV257 ) )
        = $true )
      | ( ( SV281
          = ( set_union2 @ SV197 @ SV257 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1335]) ).

thf(1359,plain,
    ! [SV258: $i,SV197: $i,SV282: $i,SV303: $i] :
      ( ( ( ~ ( in @ SV303 @ SV282 ) )
        = $true )
      | ( ( ( in @ SV303 @ SV197 )
          | ( in @ SV303 @ SV258 ) )
        = $true )
      | ( ( SV282
          = ( set_union2 @ SV197 @ SV258 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1337]) ).

thf(1360,plain,
    ! [SV258: $i,SV282: $i,SV197: $i] :
      ( ( ( ~ ! [SY376: $i] :
                ( ~ ( in @ SY376 @ SV197 )
                | ( in @ SY376 @ SV282 ) ) )
        = $false )
      | ( ( SV282
          = ( set_union2 @ SV197 @ SV258 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1338]) ).

thf(1361,plain,
    ! [SV197: $i,SV282: $i,SV258: $i] :
      ( ( ( ~ ! [SY377: $i] :
                ( ~ ( in @ SY377 @ SV258 )
                | ( in @ SY377 @ SV282 ) ) )
        = $false )
      | ( ( SV282
          = ( set_union2 @ SV197 @ SV258 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1338]) ).

thf(1362,plain,
    ! [SV198: $i,SV261: $i,SV283: $i] :
      ( ( ( in @ ( sK6_D @ SV283 @ SV261 @ SV198 ) @ SV198 )
        = $false )
      | ( ( in @ ( sK6_D @ SV283 @ SV261 @ SV198 ) @ SV261 )
        = $true )
      | ( ( ~ ( in @ ( sK6_D @ SV283 @ SV261 @ SV198 ) @ SV283 ) )
        = $true )
      | ( ( SV283
          = ( set_difference @ SV198 @ SV261 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1339]) ).

thf(1363,plain,
    ! [SV198: $i,SV261: $i,SV283: $i] :
      ( ( ( ( in @ ( sK6_D @ SV283 @ SV261 @ SV198 ) @ SV198 )
          | ( in @ ( sK6_D @ SV283 @ SV261 @ SV198 ) @ SV283 ) )
        = $true )
      | ( ( SV283
          = ( set_difference @ SV198 @ SV261 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1340]) ).

thf(1364,plain,
    ! [SV198: $i,SV261: $i,SV283: $i] :
      ( ( ( ~ ( in @ ( sK6_D @ SV283 @ SV261 @ SV198 ) @ SV261 )
          | ( in @ ( sK6_D @ SV283 @ SV261 @ SV198 ) @ SV283 ) )
        = $true )
      | ( ( SV283
          = ( set_difference @ SV198 @ SV261 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1341]) ).

thf(1365,plain,
    ! [SV284: $i,SV262: $i,SV198: $i,SV304: $i] :
      ( ( ( ~ ( in @ SV304 @ SV198 )
          | ( in @ SV304 @ SV262 ) )
        = $true )
      | ( ( in @ SV304 @ SV284 )
        = $true )
      | ( ( SV284
          = ( set_difference @ SV198 @ SV262 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1342]) ).

thf(1366,plain,
    ! [SV262: $i,SV198: $i,SV284: $i] :
      ( ( ( ~ ! [SY379: $i] :
                ( ~ ( in @ SY379 @ SV284 )
                | ( in @ SY379 @ SV198 ) ) )
        = $false )
      | ( ( SV284
          = ( set_difference @ SV198 @ SV262 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1343]) ).

thf(1367,plain,
    ! [SV198: $i,SV262: $i,SV284: $i] :
      ( ( ( ~ ! [SY380: $i] :
                ( ~ ( in @ SY380 @ SV284 )
                | ~ ( in @ SY380 @ SV262 ) ) )
        = $false )
      | ( ( SV284
          = ( set_difference @ SV198 @ SV262 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1343]) ).

thf(1368,plain,
    ! [SV267: $i,SV243: $i,SV301: $i] :
      ( ( ( SV301 = SV243 )
        = $false )
      | ( ( in @ SV301 @ SV267 )
        = $true )
      | ( ( SV267
          = ( singleton @ SV243 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1345]) ).

thf(1369,plain,
    ! [SV243: $i,SV267: $i,SV302: $i] :
      ( ( ( in @ SV302 @ SV267 )
        = $false )
      | ( ( SV302 = SV243 )
        = $true )
      | ( ( SV267
          = ( singleton @ SV243 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1346]) ).

thf(1370,plain,
    ! [SV200: $i,SV268: $i,SV285: $i] :
      ( ( ( in @ ( sK7_D @ SV285 @ SV268 @ SV200 ) @ SV200 )
        = $false )
      | ( ( ~ ( in @ ( sK7_D @ SV285 @ SV268 @ SV200 ) @ SV268 ) )
        = $true )
      | ( ( ~ ( in @ ( sK7_D @ SV285 @ SV268 @ SV200 ) @ SV285 ) )
        = $true )
      | ( ( SV285
          = ( set_intersection2 @ SV200 @ SV268 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1347]) ).

thf(1371,plain,
    ! [SV200: $i,SV268: $i,SV285: $i] :
      ( ( ( ( in @ ( sK7_D @ SV285 @ SV268 @ SV200 ) @ SV200 )
          | ( in @ ( sK7_D @ SV285 @ SV268 @ SV200 ) @ SV285 ) )
        = $true )
      | ( ( SV285
          = ( set_intersection2 @ SV200 @ SV268 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1348]) ).

thf(1372,plain,
    ! [SV200: $i,SV268: $i,SV285: $i] :
      ( ( ( ( in @ ( sK7_D @ SV285 @ SV268 @ SV200 ) @ SV268 )
          | ( in @ ( sK7_D @ SV285 @ SV268 @ SV200 ) @ SV285 ) )
        = $true )
      | ( ( SV285
          = ( set_intersection2 @ SV200 @ SV268 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1349]) ).

thf(1373,plain,
    ! [SV286: $i,SV269: $i,SV200: $i,SV305: $i] :
      ( ( ( ~ ( in @ SV305 @ SV200 )
          | ~ ( in @ SV305 @ SV269 ) )
        = $true )
      | ( ( in @ SV305 @ SV286 )
        = $true )
      | ( ( SV286
          = ( set_intersection2 @ SV200 @ SV269 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1350]) ).

thf(1374,plain,
    ! [SV269: $i,SV200: $i,SV286: $i] :
      ( ( ( ~ ! [SY382: $i] :
                ( ~ ( in @ SY382 @ SV286 )
                | ( in @ SY382 @ SV200 ) ) )
        = $false )
      | ( ( SV286
          = ( set_intersection2 @ SV200 @ SV269 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1351]) ).

thf(1375,plain,
    ! [SV200: $i,SV269: $i,SV286: $i] :
      ( ( ( ~ ! [SY383: $i] :
                ( ~ ( in @ SY383 @ SV286 )
                | ( in @ SY383 @ SV269 ) ) )
        = $false )
      | ( ( SV286
          = ( set_intersection2 @ SV200 @ SV269 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1351]) ).

thf(1376,plain,
    ! [SV201: $i,SV279: $i,SV287: $i] :
      ( ( ( ~ ( in @ ( sK10_D @ SV287 @ SV279 @ SV201 ) @ SV287 )
          | ( ( sK10_D @ SV287 @ SV279 @ SV201 )
           != SV201 ) )
        = $true )
      | ( ( SV287
          = ( unordered_pair @ SV201 @ SV279 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1352]) ).

thf(1377,plain,
    ! [SV201: $i,SV279: $i,SV287: $i] :
      ( ( ( ~ ( in @ ( sK10_D @ SV287 @ SV279 @ SV201 ) @ SV287 )
          | ( ( sK10_D @ SV287 @ SV279 @ SV201 )
           != SV279 ) )
        = $true )
      | ( ( SV287
          = ( unordered_pair @ SV201 @ SV279 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[1353]) ).

thf(1378,plain,
    ! [SV280: $i,SV201: $i,SV288: $i,SV306: $i] :
      ( ( ( ~ ( in @ SV306 @ SV288 ) )
        = $true )
      | ( ( ( SV306 = SV201 )
          | ( SV306 = SV280 ) )
        = $true )
      | ( ( SV288
          = ( unordered_pair @ SV201 @ SV280 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1355]) ).

thf(1379,plain,
    ! [SV280: $i,SV288: $i,SV201: $i] :
      ( ( ( ~ ! [SY385: $i] :
                ( ( SY385 != SV201 )
                | ( in @ SY385 @ SV288 ) ) )
        = $false )
      | ( ( SV288
          = ( unordered_pair @ SV201 @ SV280 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1356]) ).

thf(1380,plain,
    ! [SV201: $i,SV288: $i,SV280: $i] :
      ( ( ( ~ ! [SY386: $i] :
                ( ( SY386 != SV280 )
                | ( in @ SY386 @ SV288 ) ) )
        = $false )
      | ( ( SV288
          = ( unordered_pair @ SV201 @ SV280 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[1356]) ).

thf(1381,plain,
    ! [SV197: $i,SV257: $i,SV281: $i] :
      ( ( ( ~ ( in @ ( sK9_D @ SV281 @ SV257 @ SV197 ) @ SV281 ) )
        = $true )
      | ( ( ~ ( in @ ( sK9_D @ SV281 @ SV257 @ SV197 ) @ SV197 ) )
        = $true )
      | ( ( SV281
          = ( set_union2 @ SV197 @ SV257 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1357]) ).

thf(1382,plain,
    ! [SV197: $i,SV257: $i,SV281: $i] :
      ( ( ( ~ ( in @ ( sK9_D @ SV281 @ SV257 @ SV197 ) @ SV281 ) )
        = $true )
      | ( ( ~ ( in @ ( sK9_D @ SV281 @ SV257 @ SV197 ) @ SV257 ) )
        = $true )
      | ( ( SV281
          = ( set_union2 @ SV197 @ SV257 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1358]) ).

thf(1383,plain,
    ! [SV258: $i,SV197: $i,SV282: $i,SV303: $i] :
      ( ( ( in @ SV303 @ SV282 )
        = $false )
      | ( ( ( in @ SV303 @ SV197 )
          | ( in @ SV303 @ SV258 ) )
        = $true )
      | ( ( SV282
          = ( set_union2 @ SV197 @ SV258 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1359]) ).

thf(1384,plain,
    ! [SV258: $i,SV282: $i,SV197: $i] :
      ( ( ( ! [SY376: $i] :
              ( ~ ( in @ SY376 @ SV197 )
              | ( in @ SY376 @ SV282 ) ) )
        = $true )
      | ( ( SV282
          = ( set_union2 @ SV197 @ SV258 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1360]) ).

thf(1385,plain,
    ! [SV197: $i,SV282: $i,SV258: $i] :
      ( ( ( ! [SY377: $i] :
              ( ~ ( in @ SY377 @ SV258 )
              | ( in @ SY377 @ SV282 ) ) )
        = $true )
      | ( ( SV282
          = ( set_union2 @ SV197 @ SV258 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1361]) ).

thf(1386,plain,
    ! [SV198: $i,SV261: $i,SV283: $i] :
      ( ( ( in @ ( sK6_D @ SV283 @ SV261 @ SV198 ) @ SV283 )
        = $false )
      | ( ( in @ ( sK6_D @ SV283 @ SV261 @ SV198 ) @ SV261 )
        = $true )
      | ( ( in @ ( sK6_D @ SV283 @ SV261 @ SV198 ) @ SV198 )
        = $false )
      | ( ( SV283
          = ( set_difference @ SV198 @ SV261 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1362]) ).

thf(1387,plain,
    ! [SV198: $i,SV261: $i,SV283: $i] :
      ( ( ( in @ ( sK6_D @ SV283 @ SV261 @ SV198 ) @ SV198 )
        = $true )
      | ( ( in @ ( sK6_D @ SV283 @ SV261 @ SV198 ) @ SV283 )
        = $true )
      | ( ( SV283
          = ( set_difference @ SV198 @ SV261 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1363]) ).

thf(1388,plain,
    ! [SV198: $i,SV261: $i,SV283: $i] :
      ( ( ( ~ ( in @ ( sK6_D @ SV283 @ SV261 @ SV198 ) @ SV261 ) )
        = $true )
      | ( ( in @ ( sK6_D @ SV283 @ SV261 @ SV198 ) @ SV283 )
        = $true )
      | ( ( SV283
          = ( set_difference @ SV198 @ SV261 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1364]) ).

thf(1389,plain,
    ! [SV284: $i,SV262: $i,SV198: $i,SV304: $i] :
      ( ( ( ~ ( in @ SV304 @ SV198 ) )
        = $true )
      | ( ( in @ SV304 @ SV262 )
        = $true )
      | ( ( in @ SV304 @ SV284 )
        = $true )
      | ( ( SV284
          = ( set_difference @ SV198 @ SV262 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1365]) ).

thf(1390,plain,
    ! [SV262: $i,SV198: $i,SV284: $i] :
      ( ( ( ! [SY379: $i] :
              ( ~ ( in @ SY379 @ SV284 )
              | ( in @ SY379 @ SV198 ) ) )
        = $true )
      | ( ( SV284
          = ( set_difference @ SV198 @ SV262 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1366]) ).

thf(1391,plain,
    ! [SV198: $i,SV262: $i,SV284: $i] :
      ( ( ( ! [SY380: $i] :
              ( ~ ( in @ SY380 @ SV284 )
              | ~ ( in @ SY380 @ SV262 ) ) )
        = $true )
      | ( ( SV284
          = ( set_difference @ SV198 @ SV262 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1367]) ).

thf(1392,plain,
    ! [SV200: $i,SV268: $i,SV285: $i] :
      ( ( ( in @ ( sK7_D @ SV285 @ SV268 @ SV200 ) @ SV268 )
        = $false )
      | ( ( in @ ( sK7_D @ SV285 @ SV268 @ SV200 ) @ SV200 )
        = $false )
      | ( ( ~ ( in @ ( sK7_D @ SV285 @ SV268 @ SV200 ) @ SV285 ) )
        = $true )
      | ( ( SV285
          = ( set_intersection2 @ SV200 @ SV268 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1370]) ).

thf(1393,plain,
    ! [SV200: $i,SV268: $i,SV285: $i] :
      ( ( ( in @ ( sK7_D @ SV285 @ SV268 @ SV200 ) @ SV200 )
        = $true )
      | ( ( in @ ( sK7_D @ SV285 @ SV268 @ SV200 ) @ SV285 )
        = $true )
      | ( ( SV285
          = ( set_intersection2 @ SV200 @ SV268 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1371]) ).

thf(1394,plain,
    ! [SV200: $i,SV268: $i,SV285: $i] :
      ( ( ( in @ ( sK7_D @ SV285 @ SV268 @ SV200 ) @ SV268 )
        = $true )
      | ( ( in @ ( sK7_D @ SV285 @ SV268 @ SV200 ) @ SV285 )
        = $true )
      | ( ( SV285
          = ( set_intersection2 @ SV200 @ SV268 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1372]) ).

thf(1395,plain,
    ! [SV286: $i,SV269: $i,SV200: $i,SV305: $i] :
      ( ( ( ~ ( in @ SV305 @ SV200 ) )
        = $true )
      | ( ( ~ ( in @ SV305 @ SV269 ) )
        = $true )
      | ( ( in @ SV305 @ SV286 )
        = $true )
      | ( ( SV286
          = ( set_intersection2 @ SV200 @ SV269 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1373]) ).

thf(1396,plain,
    ! [SV269: $i,SV200: $i,SV286: $i] :
      ( ( ( ! [SY382: $i] :
              ( ~ ( in @ SY382 @ SV286 )
              | ( in @ SY382 @ SV200 ) ) )
        = $true )
      | ( ( SV286
          = ( set_intersection2 @ SV200 @ SV269 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1374]) ).

thf(1397,plain,
    ! [SV200: $i,SV269: $i,SV286: $i] :
      ( ( ( ! [SY383: $i] :
              ( ~ ( in @ SY383 @ SV286 )
              | ( in @ SY383 @ SV269 ) ) )
        = $true )
      | ( ( SV286
          = ( set_intersection2 @ SV200 @ SV269 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1375]) ).

thf(1398,plain,
    ! [SV201: $i,SV279: $i,SV287: $i] :
      ( ( ( ~ ( in @ ( sK10_D @ SV287 @ SV279 @ SV201 ) @ SV287 ) )
        = $true )
      | ( ( ( ( sK10_D @ SV287 @ SV279 @ SV201 )
           != SV201 ) )
        = $true )
      | ( ( SV287
          = ( unordered_pair @ SV201 @ SV279 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1376]) ).

thf(1399,plain,
    ! [SV201: $i,SV279: $i,SV287: $i] :
      ( ( ( ~ ( in @ ( sK10_D @ SV287 @ SV279 @ SV201 ) @ SV287 ) )
        = $true )
      | ( ( ( ( sK10_D @ SV287 @ SV279 @ SV201 )
           != SV279 ) )
        = $true )
      | ( ( SV287
          = ( unordered_pair @ SV201 @ SV279 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[1377]) ).

thf(1400,plain,
    ! [SV280: $i,SV201: $i,SV288: $i,SV306: $i] :
      ( ( ( in @ SV306 @ SV288 )
        = $false )
      | ( ( ( SV306 = SV201 )
          | ( SV306 = SV280 ) )
        = $true )
      | ( ( SV288
          = ( unordered_pair @ SV201 @ SV280 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1378]) ).

thf(1401,plain,
    ! [SV280: $i,SV288: $i,SV201: $i] :
      ( ( ( ! [SY385: $i] :
              ( ( SY385 != SV201 )
              | ( in @ SY385 @ SV288 ) ) )
        = $true )
      | ( ( SV288
          = ( unordered_pair @ SV201 @ SV280 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1379]) ).

thf(1402,plain,
    ! [SV201: $i,SV288: $i,SV280: $i] :
      ( ( ( ! [SY386: $i] :
              ( ( SY386 != SV280 )
              | ( in @ SY386 @ SV288 ) ) )
        = $true )
      | ( ( SV288
          = ( unordered_pair @ SV201 @ SV280 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[1380]) ).

thf(1403,plain,
    ! [SV197: $i,SV257: $i,SV281: $i] :
      ( ( ( in @ ( sK9_D @ SV281 @ SV257 @ SV197 ) @ SV281 )
        = $false )
      | ( ( ~ ( in @ ( sK9_D @ SV281 @ SV257 @ SV197 ) @ SV197 ) )
        = $true )
      | ( ( SV281
          = ( set_union2 @ SV197 @ SV257 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1381]) ).

thf(1404,plain,
    ! [SV197: $i,SV257: $i,SV281: $i] :
      ( ( ( in @ ( sK9_D @ SV281 @ SV257 @ SV197 ) @ SV281 )
        = $false )
      | ( ( ~ ( in @ ( sK9_D @ SV281 @ SV257 @ SV197 ) @ SV257 ) )
        = $true )
      | ( ( SV281
          = ( set_union2 @ SV197 @ SV257 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1382]) ).

thf(1405,plain,
    ! [SV282: $i,SV258: $i,SV197: $i,SV303: $i] :
      ( ( ( in @ SV303 @ SV197 )
        = $true )
      | ( ( in @ SV303 @ SV258 )
        = $true )
      | ( ( in @ SV303 @ SV282 )
        = $false )
      | ( ( SV282
          = ( set_union2 @ SV197 @ SV258 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1383]) ).

thf(1406,plain,
    ! [SV258: $i,SV282: $i,SV197: $i,SV307: $i] :
      ( ( ( ~ ( in @ SV307 @ SV197 )
          | ( in @ SV307 @ SV282 ) )
        = $true )
      | ( ( SV282
          = ( set_union2 @ SV197 @ SV258 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1384]) ).

thf(1407,plain,
    ! [SV197: $i,SV282: $i,SV258: $i,SV308: $i] :
      ( ( ( ~ ( in @ SV308 @ SV258 )
          | ( in @ SV308 @ SV282 ) )
        = $true )
      | ( ( SV282
          = ( set_union2 @ SV197 @ SV258 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1385]) ).

thf(1408,plain,
    ! [SV198: $i,SV261: $i,SV283: $i] :
      ( ( ( in @ ( sK6_D @ SV283 @ SV261 @ SV198 ) @ SV261 )
        = $false )
      | ( ( in @ ( sK6_D @ SV283 @ SV261 @ SV198 ) @ SV283 )
        = $true )
      | ( ( SV283
          = ( set_difference @ SV198 @ SV261 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1388]) ).

thf(1409,plain,
    ! [SV284: $i,SV262: $i,SV198: $i,SV304: $i] :
      ( ( ( in @ SV304 @ SV198 )
        = $false )
      | ( ( in @ SV304 @ SV262 )
        = $true )
      | ( ( in @ SV304 @ SV284 )
        = $true )
      | ( ( SV284
          = ( set_difference @ SV198 @ SV262 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1389]) ).

thf(1410,plain,
    ! [SV262: $i,SV198: $i,SV284: $i,SV309: $i] :
      ( ( ( ~ ( in @ SV309 @ SV284 )
          | ( in @ SV309 @ SV198 ) )
        = $true )
      | ( ( SV284
          = ( set_difference @ SV198 @ SV262 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1390]) ).

thf(1411,plain,
    ! [SV198: $i,SV262: $i,SV284: $i,SV310: $i] :
      ( ( ( ~ ( in @ SV310 @ SV284 )
          | ~ ( in @ SV310 @ SV262 ) )
        = $true )
      | ( ( SV284
          = ( set_difference @ SV198 @ SV262 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1391]) ).

thf(1412,plain,
    ! [SV200: $i,SV268: $i,SV285: $i] :
      ( ( ( in @ ( sK7_D @ SV285 @ SV268 @ SV200 ) @ SV285 )
        = $false )
      | ( ( in @ ( sK7_D @ SV285 @ SV268 @ SV200 ) @ SV200 )
        = $false )
      | ( ( in @ ( sK7_D @ SV285 @ SV268 @ SV200 ) @ SV268 )
        = $false )
      | ( ( SV285
          = ( set_intersection2 @ SV200 @ SV268 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1392]) ).

thf(1413,plain,
    ! [SV286: $i,SV269: $i,SV200: $i,SV305: $i] :
      ( ( ( in @ SV305 @ SV200 )
        = $false )
      | ( ( ~ ( in @ SV305 @ SV269 ) )
        = $true )
      | ( ( in @ SV305 @ SV286 )
        = $true )
      | ( ( SV286
          = ( set_intersection2 @ SV200 @ SV269 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1395]) ).

thf(1414,plain,
    ! [SV269: $i,SV200: $i,SV286: $i,SV311: $i] :
      ( ( ( ~ ( in @ SV311 @ SV286 )
          | ( in @ SV311 @ SV200 ) )
        = $true )
      | ( ( SV286
          = ( set_intersection2 @ SV200 @ SV269 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1396]) ).

thf(1415,plain,
    ! [SV200: $i,SV269: $i,SV286: $i,SV312: $i] :
      ( ( ( ~ ( in @ SV312 @ SV286 )
          | ( in @ SV312 @ SV269 ) )
        = $true )
      | ( ( SV286
          = ( set_intersection2 @ SV200 @ SV269 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1397]) ).

thf(1416,plain,
    ! [SV201: $i,SV279: $i,SV287: $i] :
      ( ( ( in @ ( sK10_D @ SV287 @ SV279 @ SV201 ) @ SV287 )
        = $false )
      | ( ( ( ( sK10_D @ SV287 @ SV279 @ SV201 )
           != SV201 ) )
        = $true )
      | ( ( SV287
          = ( unordered_pair @ SV201 @ SV279 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1398]) ).

thf(1417,plain,
    ! [SV201: $i,SV279: $i,SV287: $i] :
      ( ( ( in @ ( sK10_D @ SV287 @ SV279 @ SV201 ) @ SV287 )
        = $false )
      | ( ( ( ( sK10_D @ SV287 @ SV279 @ SV201 )
           != SV279 ) )
        = $true )
      | ( ( SV287
          = ( unordered_pair @ SV201 @ SV279 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1399]) ).

thf(1418,plain,
    ! [SV288: $i,SV280: $i,SV201: $i,SV306: $i] :
      ( ( ( SV306 = SV201 )
        = $true )
      | ( ( SV306 = SV280 )
        = $true )
      | ( ( in @ SV306 @ SV288 )
        = $false )
      | ( ( SV288
          = ( unordered_pair @ SV201 @ SV280 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1400]) ).

thf(1419,plain,
    ! [SV280: $i,SV288: $i,SV201: $i,SV313: $i] :
      ( ( ( ( SV313 != SV201 )
          | ( in @ SV313 @ SV288 ) )
        = $true )
      | ( ( SV288
          = ( unordered_pair @ SV201 @ SV280 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1401]) ).

thf(1420,plain,
    ! [SV201: $i,SV288: $i,SV280: $i,SV314: $i] :
      ( ( ( ( SV314 != SV280 )
          | ( in @ SV314 @ SV288 ) )
        = $true )
      | ( ( SV288
          = ( unordered_pair @ SV201 @ SV280 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[1402]) ).

thf(1421,plain,
    ! [SV197: $i,SV257: $i,SV281: $i] :
      ( ( ( in @ ( sK9_D @ SV281 @ SV257 @ SV197 ) @ SV197 )
        = $false )
      | ( ( in @ ( sK9_D @ SV281 @ SV257 @ SV197 ) @ SV281 )
        = $false )
      | ( ( SV281
          = ( set_union2 @ SV197 @ SV257 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1403]) ).

thf(1422,plain,
    ! [SV197: $i,SV257: $i,SV281: $i] :
      ( ( ( in @ ( sK9_D @ SV281 @ SV257 @ SV197 ) @ SV257 )
        = $false )
      | ( ( in @ ( sK9_D @ SV281 @ SV257 @ SV197 ) @ SV281 )
        = $false )
      | ( ( SV281
          = ( set_union2 @ SV197 @ SV257 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1404]) ).

thf(1423,plain,
    ! [SV258: $i,SV282: $i,SV197: $i,SV307: $i] :
      ( ( ( ~ ( in @ SV307 @ SV197 ) )
        = $true )
      | ( ( in @ SV307 @ SV282 )
        = $true )
      | ( ( SV282
          = ( set_union2 @ SV197 @ SV258 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1406]) ).

thf(1424,plain,
    ! [SV197: $i,SV282: $i,SV258: $i,SV308: $i] :
      ( ( ( ~ ( in @ SV308 @ SV258 ) )
        = $true )
      | ( ( in @ SV308 @ SV282 )
        = $true )
      | ( ( SV282
          = ( set_union2 @ SV197 @ SV258 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1407]) ).

thf(1425,plain,
    ! [SV262: $i,SV198: $i,SV284: $i,SV309: $i] :
      ( ( ( ~ ( in @ SV309 @ SV284 ) )
        = $true )
      | ( ( in @ SV309 @ SV198 )
        = $true )
      | ( ( SV284
          = ( set_difference @ SV198 @ SV262 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1410]) ).

thf(1426,plain,
    ! [SV198: $i,SV262: $i,SV284: $i,SV310: $i] :
      ( ( ( ~ ( in @ SV310 @ SV284 ) )
        = $true )
      | ( ( ~ ( in @ SV310 @ SV262 ) )
        = $true )
      | ( ( SV284
          = ( set_difference @ SV198 @ SV262 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1411]) ).

thf(1427,plain,
    ! [SV286: $i,SV200: $i,SV269: $i,SV305: $i] :
      ( ( ( in @ SV305 @ SV269 )
        = $false )
      | ( ( in @ SV305 @ SV200 )
        = $false )
      | ( ( in @ SV305 @ SV286 )
        = $true )
      | ( ( SV286
          = ( set_intersection2 @ SV200 @ SV269 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1413]) ).

thf(1428,plain,
    ! [SV269: $i,SV200: $i,SV286: $i,SV311: $i] :
      ( ( ( ~ ( in @ SV311 @ SV286 ) )
        = $true )
      | ( ( in @ SV311 @ SV200 )
        = $true )
      | ( ( SV286
          = ( set_intersection2 @ SV200 @ SV269 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1414]) ).

thf(1429,plain,
    ! [SV200: $i,SV269: $i,SV286: $i,SV312: $i] :
      ( ( ( ~ ( in @ SV312 @ SV286 ) )
        = $true )
      | ( ( in @ SV312 @ SV269 )
        = $true )
      | ( ( SV286
          = ( set_intersection2 @ SV200 @ SV269 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1415]) ).

thf(1430,plain,
    ! [SV201: $i,SV279: $i,SV287: $i] :
      ( ( ( ( sK10_D @ SV287 @ SV279 @ SV201 )
          = SV201 )
        = $false )
      | ( ( in @ ( sK10_D @ SV287 @ SV279 @ SV201 ) @ SV287 )
        = $false )
      | ( ( SV287
          = ( unordered_pair @ SV201 @ SV279 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1416]) ).

thf(1431,plain,
    ! [SV201: $i,SV279: $i,SV287: $i] :
      ( ( ( ( sK10_D @ SV287 @ SV279 @ SV201 )
          = SV279 )
        = $false )
      | ( ( in @ ( sK10_D @ SV287 @ SV279 @ SV201 ) @ SV287 )
        = $false )
      | ( ( SV287
          = ( unordered_pair @ SV201 @ SV279 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[1417]) ).

thf(1432,plain,
    ! [SV280: $i,SV288: $i,SV201: $i,SV313: $i] :
      ( ( ( ( SV313 != SV201 ) )
        = $true )
      | ( ( in @ SV313 @ SV288 )
        = $true )
      | ( ( SV288
          = ( unordered_pair @ SV201 @ SV280 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1419]) ).

thf(1433,plain,
    ! [SV201: $i,SV288: $i,SV280: $i,SV314: $i] :
      ( ( ( ( SV314 != SV280 ) )
        = $true )
      | ( ( in @ SV314 @ SV288 )
        = $true )
      | ( ( SV288
          = ( unordered_pair @ SV201 @ SV280 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[1420]) ).

thf(1434,plain,
    ! [SV258: $i,SV282: $i,SV197: $i,SV307: $i] :
      ( ( ( in @ SV307 @ SV197 )
        = $false )
      | ( ( in @ SV307 @ SV282 )
        = $true )
      | ( ( SV282
          = ( set_union2 @ SV197 @ SV258 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1423]) ).

thf(1435,plain,
    ! [SV197: $i,SV282: $i,SV258: $i,SV308: $i] :
      ( ( ( in @ SV308 @ SV258 )
        = $false )
      | ( ( in @ SV308 @ SV282 )
        = $true )
      | ( ( SV282
          = ( set_union2 @ SV197 @ SV258 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1424]) ).

thf(1436,plain,
    ! [SV262: $i,SV198: $i,SV284: $i,SV309: $i] :
      ( ( ( in @ SV309 @ SV284 )
        = $false )
      | ( ( in @ SV309 @ SV198 )
        = $true )
      | ( ( SV284
          = ( set_difference @ SV198 @ SV262 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1425]) ).

thf(1437,plain,
    ! [SV198: $i,SV262: $i,SV284: $i,SV310: $i] :
      ( ( ( in @ SV310 @ SV284 )
        = $false )
      | ( ( ~ ( in @ SV310 @ SV262 ) )
        = $true )
      | ( ( SV284
          = ( set_difference @ SV198 @ SV262 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1426]) ).

thf(1438,plain,
    ! [SV269: $i,SV200: $i,SV286: $i,SV311: $i] :
      ( ( ( in @ SV311 @ SV286 )
        = $false )
      | ( ( in @ SV311 @ SV200 )
        = $true )
      | ( ( SV286
          = ( set_intersection2 @ SV200 @ SV269 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1428]) ).

thf(1439,plain,
    ! [SV200: $i,SV269: $i,SV286: $i,SV312: $i] :
      ( ( ( in @ SV312 @ SV286 )
        = $false )
      | ( ( in @ SV312 @ SV269 )
        = $true )
      | ( ( SV286
          = ( set_intersection2 @ SV200 @ SV269 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1429]) ).

thf(1440,plain,
    ! [SV280: $i,SV288: $i,SV201: $i,SV313: $i] :
      ( ( ( SV313 = SV201 )
        = $false )
      | ( ( in @ SV313 @ SV288 )
        = $true )
      | ( ( SV288
          = ( unordered_pair @ SV201 @ SV280 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1432]) ).

thf(1441,plain,
    ! [SV201: $i,SV288: $i,SV280: $i,SV314: $i] :
      ( ( ( SV314 = SV280 )
        = $false )
      | ( ( in @ SV314 @ SV288 )
        = $true )
      | ( ( SV288
          = ( unordered_pair @ SV201 @ SV280 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1433]) ).

thf(1442,plain,
    ! [SV198: $i,SV284: $i,SV262: $i,SV310: $i] :
      ( ( ( in @ SV310 @ SV262 )
        = $false )
      | ( ( in @ SV310 @ SV284 )
        = $false )
      | ( ( SV284
          = ( set_difference @ SV198 @ SV262 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[1437]) ).

thf(1443,plain,
    $false = $true,
    inference(fo_atp_e,[status(thm)],[853,1442,1441,1440,1439,1438,1436,1435,1434,1431,1430,1427,1422,1421,1418,1412,1409,1408,1405,1394,1393,1387,1386,1369,1368,1354,1344,1336,1329,1321,1307,1306,1299,1297,1291,1290,1281,1280,1277,1267,1266,1260,1241,1239,1226,1225,1224,1223,1222,1221,1210,1200,1199,1198,1197,1196,1195,1170,1161,1133,1121,1120,1119,1116,1115,1114,1107,1077,1076,1075,1069,1067,1063,1057,1027,1017,977,974,973,972,968,965,963,961,960,954,952,931,930,929,928,926,925,923,922,912,902,865,859,858,857,856,855,854]) ).

thf(1444,plain,
    $false,
    inference(solved_all_splits,[solved_all_splits(join,[])],[1443,812]) ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.07/0.11  % Problem  : SEU144+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
% 0.12/0.31  % Computer : n017.cluster.edu
% 0.12/0.31  % Model    : x86_64 x86_64
% 0.12/0.31  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.12/0.31  % Memory   : 8042.1875MB
% 0.12/0.31  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.12/0.31  % CPULimit : 300
% 0.12/0.31  % WCLimit  : 600
% 0.12/0.31  % DateTime : Sun Jun 19 16:29:43 EDT 2022
% 0.12/0.31  % CPUTime  : 
% 0.12/0.34  .
% 0.12/0.35  
% 0.12/0.35   No.of.Axioms: 64
% 0.12/0.35  
% 0.12/0.35   Length.of.Defs: 0
% 0.12/0.35  
% 0.12/0.35   Contains.Choice.Funs: false
% 0.12/0.36  ..
% 0.12/0.38  (rf:0,axioms:64,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:66,loop_count:0,foatp_calls:0,translation:fof_full)......................................................................................
% 33.81/34.01  
% 33.81/34.01  ********************************
% 33.81/34.01  *   All subproblems solved!    *
% 33.81/34.01  ********************************
% 33.81/34.01  % SZS status Theorem for /export/starexec/sandbox2/benchmark/theBenchmark.p : (rf:0,axioms:64,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:73,atp_calls_frequency:10,ordering:none,proof_output:1,protocol_output:false,clause_count:1443,loop_count:0,foatp_calls:1,translation:fof_full)
% 34.51/34.72  
% 34.51/34.72  %**** Beginning of derivation protocol ****
% 34.51/34.72  % SZS output start CNFRefutation
% See solution above
% 34.56/34.73  
% 34.56/34.73  %**** End of derivation protocol ****
% 34.56/34.73  %**** no. of clauses in derivation: 1444 ****
% 34.56/34.73  %**** clause counter: 1443 ****
% 34.56/34.73  
% 34.56/34.73  % SZS status Theorem for /export/starexec/sandbox2/benchmark/theBenchmark.p : (rf:0,axioms:64,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:73,atp_calls_frequency:10,ordering:none,proof_output:1,protocol_output:false,clause_count:1443,loop_count:0,foatp_calls:1,translation:fof_full)
%------------------------------------------------------------------------------