TSTP Solution File: SEU151+2 by LEO-II---1.7.0

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : LEO-II---1.7.0
% Problem  : SEU151+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 : n016.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 12:07:12 EDT 2022

% Result   : Theorem 225.50s 225.88s
% Output   : CNFRefutation 225.61s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :   24
%            Number of leaves      :   44
% Syntax   : Number of formulae    :  474 ( 190 unt;  25 typ;   0 def)
%            Number of atoms       : 3474 (1408 equ;   0 cnn)
%            Maximal formula atoms :    6 (   7 avg)
%            Number of connectives : 8151 (1583   ~;1357   |;  96   &;5075   @)
%                                         (  28 <=>;  12  =>;   0  <=;   0 <~>)
%            Maximal formula depth :   11 (   4 avg)
%            Number of types       :    2 (   0 usr)
%            Number of type conns  :   40 (  40   >;   0   *;   0   +;   0  <<)
%            Number of symbols     :   28 (  25 usr;   7 con; 0-3 aty)
%            Number of variables   : 1481 (   0   ^1479   !;   2   ?;1481   :)

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

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

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

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

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

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

thf(tp_sK10_B,type,
    sK10_B: $i > $i ).

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

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

thf(tp_sK13_D,type,
    sK13_D: $i > $i > $i > $i ).

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

thf(tp_sK2_SY822,type,
    sK2_SY822: $i ).

thf(tp_sK3_SY825,type,
    sK3_SY825: $i ).

thf(tp_sK4_SY827,type,
    sK4_SY827: $i ).

thf(tp_sK5_C,type,
    sK5_C: $i > $i > $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(2,axiom,
    ! [A: $i,B: $i] :
      ~ ( ( in @ A @ B )
        & ( empty @ B ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',t7_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(28,axiom,
    ! [A: $i,B: $i,C: $i] :
      ( ( C
        = ( set_difference @ A @ B ) )
    <=> ! [D: $i] :
          ( ( in @ D @ C )
        <=> ( ( in @ D @ A )
            & ~ ( in @ D @ B ) ) ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',d4_xboole_0) ).

thf(29,axiom,
    ! [A: $i,B: $i,C: $i] :
      ( ( C
        = ( set_intersection2 @ A @ B ) )
    <=> ! [D: $i] :
          ( ( in @ D @ C )
        <=> ( ( in @ D @ A )
            & ( in @ D @ B ) ) ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',d3_xboole_0) ).

thf(30,axiom,
    ! [A: $i,B: $i] :
      ( ( subset @ A @ B )
    <=> ! [C: $i] :
          ( ( in @ C @ A )
         => ( in @ C @ B ) ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',d3_tarski) ).

thf(31,axiom,
    ! [A: $i,B: $i,C: $i] :
      ( ( C
        = ( set_union2 @ A @ B ) )
    <=> ! [D: $i] :
          ( ( in @ D @ C )
        <=> ( ( in @ D @ A )
            | ( in @ D @ B ) ) ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',d2_xboole_0) ).

thf(32,axiom,
    ! [A: $i,B: $i,C: $i] :
      ( ( C
        = ( unordered_pair @ A @ B ) )
    <=> ! [D: $i] :
          ( ( in @ D @ C )
        <=> ( ( D = A )
            | ( D = B ) ) ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',d2_tarski) ).

thf(34,axiom,
    ! [A: $i] :
      ( ( A = empty_set )
    <=> ! [B: $i] :
          ~ ( in @ B @ A ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',d1_xboole_0) ).

thf(35,axiom,
    ! [A: $i,B: $i] :
      ( ( B
        = ( singleton @ A ) )
    <=> ! [C: $i] :
          ( ( in @ C @ B )
        <=> ( C = A ) ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',d1_tarski) ).

thf(39,axiom,
    ! [A: $i,B: $i] :
      ( ( unordered_pair @ A @ B )
      = ( unordered_pair @ B @ A ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',commutativity_k2_tarski) ).

thf(41,axiom,
    ! [A: $i,B: $i] :
      ( ( in @ A @ B )
     => ~ ( in @ B @ A ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',antisymmetry_r2_hidden) ).

thf(42,axiom,
    ! [A: $i,B: $i,C: $i] :
      ( ( ( singleton @ A )
        = ( unordered_pair @ B @ C ) )
     => ( B = C ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',t9_zfmisc_1) ).

thf(43,axiom,
    ! [A: $i,B: $i,C: $i] :
      ( ( ( singleton @ A )
        = ( unordered_pair @ B @ C ) )
     => ( A = B ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',t8_zfmisc_1) ).

thf(47,axiom,
    ! [A: $i,B: $i] :
      ( ( subset @ ( singleton @ A ) @ ( singleton @ B ) )
     => ( A = B ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',t6_zfmisc_1) ).

thf(48,axiom,
    ! [A: $i] :
      ( ( unordered_pair @ A @ A )
      = ( singleton @ A ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',t69_enumset1) ).

thf(56,axiom,
    ! [A: $i,B: $i] :
      ( ~ ( ~ ( 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(72,axiom,
    ! [A: $i,B: $i] :
      ( ( subset @ ( singleton @ A ) @ B )
    <=> ( in @ A @ B ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',l2_zfmisc_1) ).

thf(73,axiom,
    ! [A: $i] :
      ( ( singleton @ A )
     != empty_set ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',l1_zfmisc_1) ).

thf(74,conjecture,
    ! [A: $i,B: $i,C: $i,D: $i] :
      ~ ( ( ( unordered_pair @ A @ B )
          = ( unordered_pair @ C @ D ) )
        & ( A != C )
        & ( A != D ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',t10_zfmisc_1) ).

thf(75,negated_conjecture,
    ( ( ! [A: $i,B: $i,C: $i,D: $i] :
          ~ ( ( ( unordered_pair @ A @ B )
              = ( unordered_pair @ C @ D ) )
            & ( A != C )
            & ( A != D ) ) )
    = $false ),
    inference(negate_conjecture,[status(cth)],[74]) ).

thf(76,plain,
    ( ( ! [A: $i,B: $i,C: $i,D: $i] :
          ~ ( ( ( unordered_pair @ A @ B )
              = ( unordered_pair @ C @ D ) )
            & ( A != C )
            & ( A != D ) ) )
    = $false ),
    inference(unfold_def,[status(thm)],[75]) ).

thf(77,plain,
    ( ( ! [A: $i,B: $i] :
          ~ ( ( in @ A @ B )
            & ( empty @ B ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[2]) ).

thf(78,plain,
    ( ( ! [A: $i,B: $i] :
          ( ! [C: $i] :
              ( ( in @ C @ A )
            <=> ( in @ C @ B ) )
         => ( A = B ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[6]) ).

thf(79,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ( C
            = ( set_difference @ A @ B ) )
        <=> ! [D: $i] :
              ( ( in @ D @ C )
            <=> ( ( in @ D @ A )
                & ~ ( in @ D @ B ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[28]) ).

thf(80,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ( C
            = ( set_intersection2 @ A @ B ) )
        <=> ! [D: $i] :
              ( ( in @ D @ C )
            <=> ( ( in @ D @ A )
                & ( in @ D @ B ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[29]) ).

thf(81,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( subset @ A @ B )
        <=> ! [C: $i] :
              ( ( in @ C @ A )
             => ( in @ C @ B ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[30]) ).

thf(82,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ( C
            = ( set_union2 @ A @ B ) )
        <=> ! [D: $i] :
              ( ( in @ D @ C )
            <=> ( ( in @ D @ A )
                | ( in @ D @ B ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[31]) ).

thf(83,plain,
    ( ( ! [A: $i] :
          ( ( A = empty_set )
        <=> ! [B: $i] :
              ~ ( in @ B @ A ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[34]) ).

thf(84,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( B
            = ( singleton @ A ) )
        <=> ! [C: $i] :
              ( ( in @ C @ B )
            <=> ( C = A ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[35]) ).

thf(85,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( in @ A @ B )
         => ~ ( in @ B @ A ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[41]) ).

thf(86,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( subset @ ( singleton @ A ) @ ( singleton @ B ) )
         => ( A = B ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[47]) ).

thf(87,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( ~ ( disjoint @ A @ B )
              & ! [C: $i] :
                  ~ ( ( in @ C @ A )
                    & ( in @ C @ B ) ) )
          & ~ ( ? [C: $i] :
                  ( ( in @ C @ A )
                  & ( in @ C @ B ) )
              & ( disjoint @ A @ B ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[56]) ).

thf(88,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( subset @ ( singleton @ A ) @ B )
        <=> ( in @ A @ B ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[72]) ).

thf(89,plain,
    ( ( ! [A: $i] :
          ( ( singleton @ A )
         != empty_set ) )
    = $true ),
    inference(unfold_def,[status(thm)],[73]) ).

thf(90,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ( C
            = ( unordered_pair @ A @ B ) )
        <=> ! [D: $i] :
              ( ( in @ D @ C )
            <=> ( ( D = A )
                | ( D = B ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[32]) ).

thf(91,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( unordered_pair @ A @ B )
          = ( unordered_pair @ B @ A ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[39]) ).

thf(92,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ( ( singleton @ A )
            = ( unordered_pair @ B @ C ) )
         => ( B = C ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[42]) ).

thf(93,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ( ( singleton @ A )
            = ( unordered_pair @ B @ C ) )
         => ( A = B ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[43]) ).

thf(94,plain,
    ( ( ! [A: $i] :
          ( ( unordered_pair @ A @ A )
          = ( singleton @ A ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[48]) ).

thf(95,plain,
    ( ( ! [SY822: $i,SY823: $i,SY824: $i] :
          ~ ( ( ( unordered_pair @ sK1_A @ SY822 )
              = ( unordered_pair @ SY823 @ SY824 ) )
            & ( sK1_A != SY823 )
            & ( sK1_A != SY824 ) ) )
    = $false ),
    inference(extcnf_forall_neg,[status(esa)],[76]) ).

thf(96,plain,
    ( ( ! [SY825: $i,SY826: $i] :
          ~ ( ( ( unordered_pair @ sK1_A @ sK2_SY822 )
              = ( unordered_pair @ SY825 @ SY826 ) )
            & ( sK1_A != SY825 )
            & ( sK1_A != SY826 ) ) )
    = $false ),
    inference(extcnf_forall_neg,[status(esa)],[95]) ).

thf(97,plain,
    ( ( ! [SY827: $i] :
          ~ ( ( ( unordered_pair @ sK1_A @ sK2_SY822 )
              = ( unordered_pair @ sK3_SY825 @ SY827 ) )
            & ( sK1_A != sK3_SY825 )
            & ( sK1_A != SY827 ) ) )
    = $false ),
    inference(extcnf_forall_neg,[status(esa)],[96]) ).

thf(98,plain,
    ( ( ~ ( ( ( unordered_pair @ sK1_A @ sK2_SY822 )
            = ( unordered_pair @ sK3_SY825 @ sK4_SY827 ) )
          & ( sK1_A != sK3_SY825 )
          & ( sK1_A != sK4_SY827 ) ) )
    = $false ),
    inference(extcnf_forall_neg,[status(esa)],[97]) ).

thf(99,plain,
    ( ( ( ( unordered_pair @ sK1_A @ sK2_SY822 )
        = ( unordered_pair @ sK3_SY825 @ sK4_SY827 ) )
      & ( sK1_A != sK3_SY825 )
      & ( sK1_A != sK4_SY827 ) )
    = $true ),
    inference(polarity_switch,[status(thm)],[98]) ).

thf(100,plain,
    ( ( ( sK1_A != sK4_SY827 )
      & ( sK1_A != sK3_SY825 )
      & ( ( unordered_pair @ sK1_A @ sK2_SY822 )
        = ( unordered_pair @ sK3_SY825 @ sK4_SY827 ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[99]) ).

thf(101,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( empty @ B )
          | ~ ( in @ A @ B ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[77]) ).

thf(102,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( ( ~ ( in @ ( sK5_C @ B @ A ) @ A )
              | ~ ( in @ ( sK5_C @ B @ A ) @ B ) )
            & ( ( in @ ( sK5_C @ B @ A ) @ A )
              | ( in @ ( sK5_C @ B @ A ) @ B ) ) )
          | ( A = B ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[78]) ).

thf(103,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)],[79]) ).

thf(104,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)],[80]) ).

thf(105,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)],[81]) ).

thf(106,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)],[82]) ).

thf(107,plain,
    ( ( ! [A: $i] :
          ( ( in @ ( sK10_B @ A ) @ A )
          | ( A = empty_set ) )
      & ! [A: $i] :
          ( ( A != empty_set )
          | ! [B: $i] :
              ~ ( in @ B @ A ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[83]) ).

thf(108,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( ( ( ( sK11_C @ B @ A )
               != A )
              | ~ ( in @ ( sK11_C @ B @ A ) @ B ) )
            & ( ( ( sK11_C @ B @ A )
                = A )
              | ( in @ ( sK11_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)],[84]) ).

thf(109,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( in @ A @ B )
          | ~ ( in @ B @ A ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[85]) ).

thf(110,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( subset @ ( singleton @ A ) @ ( singleton @ B ) )
          | ( A = B ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[86]) ).

thf(111,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( disjoint @ A @ B )
          | ( ( in @ ( sK12_C @ B @ A ) @ A )
            & ( in @ ( sK12_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)],[87]) ).

thf(112,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( in @ A @ B )
          | ( subset @ ( singleton @ A ) @ B ) )
      & ! [A: $i,B: $i] :
          ( ~ ( subset @ ( singleton @ A ) @ B )
          | ( in @ A @ B ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[88]) ).

thf(113,plain,
    ( ( ! [A: $i] :
          ( ( singleton @ A )
         != empty_set ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[89]) ).

thf(114,plain,
    ( ( ! [A: $i] :
          ( ! [B: $i,C: $i] :
              ( ( ( ~ ( in @ ( sK13_D @ C @ B @ A ) @ C )
                  | ( ( sK13_D @ C @ B @ A )
                   != A ) )
                & ( ~ ( in @ ( sK13_D @ C @ B @ A ) @ C )
                  | ( ( sK13_D @ C @ B @ A )
                   != B ) )
                & ( ( in @ ( sK13_D @ C @ B @ A ) @ C )
                  | ( ( sK13_D @ C @ B @ A )
                    = A )
                  | ( ( sK13_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)],[90]) ).

thf(115,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ( ( singleton @ A )
           != ( unordered_pair @ B @ C ) )
          | ( B = C ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[92]) ).

thf(116,plain,
    ( ( ! [A: $i,B: $i] :
          ( ! [C: $i] :
              ( ( singleton @ A )
             != ( unordered_pair @ B @ C ) )
          | ( A = B ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[93]) ).

thf(117,plain,
    ( ( ! [A: $i] :
          ( ( unordered_pair @ A @ A )
          = ( singleton @ A ) ) )
    = $true ),
    inference(copy,[status(thm)],[94]) ).

thf(118,plain,
    ( ( ! [A: $i,B: $i] :
          ( ! [C: $i] :
              ( ( singleton @ A )
             != ( unordered_pair @ B @ C ) )
          | ( A = B ) ) )
    = $true ),
    inference(copy,[status(thm)],[116]) ).

thf(119,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ( ( singleton @ A )
           != ( unordered_pair @ B @ C ) )
          | ( B = C ) ) )
    = $true ),
    inference(copy,[status(thm)],[115]) ).

thf(120,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( unordered_pair @ A @ B )
          = ( unordered_pair @ B @ A ) ) )
    = $true ),
    inference(copy,[status(thm)],[91]) ).

thf(121,plain,
    ( ( ! [A: $i] :
          ( ! [B: $i,C: $i] :
              ( ( ( ~ ( in @ ( sK13_D @ C @ B @ A ) @ C )
                  | ( ( sK13_D @ C @ B @ A )
                   != A ) )
                & ( ~ ( in @ ( sK13_D @ C @ B @ A ) @ C )
                  | ( ( sK13_D @ C @ B @ A )
                   != B ) )
                & ( ( in @ ( sK13_D @ C @ B @ A ) @ C )
                  | ( ( sK13_D @ C @ B @ A )
                    = A )
                  | ( ( sK13_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)],[114]) ).

thf(122,plain,
    ( ( ! [A: $i] :
          ( ( singleton @ A )
         != empty_set ) )
    = $true ),
    inference(copy,[status(thm)],[113]) ).

thf(123,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( in @ A @ B )
          | ( subset @ ( singleton @ A ) @ B ) )
      & ! [A: $i,B: $i] :
          ( ~ ( subset @ ( singleton @ A ) @ B )
          | ( in @ A @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[112]) ).

thf(124,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( disjoint @ A @ B )
          | ( ( in @ ( sK12_C @ B @ A ) @ A )
            & ( in @ ( sK12_C @ B @ A ) @ B ) ) )
      & ! [A: $i,B: $i] :
          ( ! [C: $i] :
              ( ~ ( in @ C @ A )
              | ~ ( in @ C @ B ) )
          | ~ ( disjoint @ A @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[111]) ).

thf(125,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( subset @ ( singleton @ A ) @ ( singleton @ B ) )
          | ( A = B ) ) )
    = $true ),
    inference(copy,[status(thm)],[110]) ).

thf(126,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( in @ A @ B )
          | ~ ( in @ B @ A ) ) )
    = $true ),
    inference(copy,[status(thm)],[109]) ).

thf(127,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( ( ( ( sK11_C @ B @ A )
               != A )
              | ~ ( in @ ( sK11_C @ B @ A ) @ B ) )
            & ( ( ( sK11_C @ B @ A )
                = A )
              | ( in @ ( sK11_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)],[108]) ).

thf(128,plain,
    ( ( ! [A: $i] :
          ( ( in @ ( sK10_B @ A ) @ A )
          | ( A = empty_set ) )
      & ! [A: $i] :
          ( ( A != empty_set )
          | ! [B: $i] :
              ~ ( in @ B @ A ) ) )
    = $true ),
    inference(copy,[status(thm)],[107]) ).

thf(129,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)],[106]) ).

thf(130,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)],[105]) ).

thf(131,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)],[104]) ).

thf(132,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)],[103]) ).

thf(133,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( ( ~ ( in @ ( sK5_C @ B @ A ) @ A )
              | ~ ( in @ ( sK5_C @ B @ A ) @ B ) )
            & ( ( in @ ( sK5_C @ B @ A ) @ A )
              | ( in @ ( sK5_C @ B @ A ) @ B ) ) )
          | ( A = B ) ) )
    = $true ),
    inference(copy,[status(thm)],[102]) ).

thf(134,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( empty @ B )
          | ~ ( in @ A @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[101]) ).

thf(135,plain,
    ( ( ( sK1_A != sK4_SY827 )
      & ( sK1_A != sK3_SY825 )
      & ( ( unordered_pair @ sK1_A @ sK2_SY822 )
        = ( unordered_pair @ sK3_SY825 @ sK4_SY827 ) ) )
    = $true ),
    inference(copy,[status(thm)],[100]) ).

thf(136,plain,
    ( ( ~ ( ~ ! [SX0: $i,SX1: $i] :
                ( ~ ( in @ SX0 @ SX1 )
                | ( subset @ ( singleton @ SX0 ) @ SX1 ) )
          | ~ ! [SX0: $i,SX1: $i] :
                ( ~ ( subset @ ( singleton @ SX0 ) @ SX1 )
                | ( in @ SX0 @ SX1 ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[123]) ).

thf(137,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)],[132]) ).

thf(138,plain,
    ( ( ~ ( ~ ! [SX0: $i] :
                ( ( in @ ( sK10_B @ SX0 ) @ SX0 )
                | ( SX0 = empty_set ) )
          | ~ ! [SX0: $i] :
                ( ( SX0 != empty_set )
                | ! [SX1: $i] :
                    ~ ( in @ SX1 @ SX0 ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[128]) ).

thf(139,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( ~ ( ~ ( in @ ( sK5_C @ SX1 @ SX0 ) @ SX0 )
                  | ~ ( in @ ( sK5_C @ SX1 @ SX0 ) @ SX1 ) )
              | ~ ( ( in @ ( sK5_C @ SX1 @ SX0 ) @ SX0 )
                  | ( in @ ( sK5_C @ SX1 @ SX0 ) @ SX1 ) ) )
          | ( SX0 = SX1 ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[133]) ).

thf(140,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)],[130]) ).

thf(141,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)],[129]) ).

thf(142,plain,
    ( ( ~ ( ~ ! [SX0: $i,SX1: $i] :
                ( ~ ( ~ ( ( ( sK11_C @ SX1 @ SX0 )
                         != SX0 )
                        | ~ ( in @ ( sK11_C @ SX1 @ SX0 ) @ SX1 ) )
                    | ~ ( ( ( sK11_C @ SX1 @ SX0 )
                          = SX0 )
                        | ( in @ ( sK11_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)],[127]) ).

thf(143,plain,
    ( ( ~ ( ~ ( ( sK1_A != sK4_SY827 ) )
          | ~ ~ ( ~ ( ( sK1_A != sK3_SY825 ) )
                | ( ( unordered_pair @ sK1_A @ sK2_SY822 )
                 != ( unordered_pair @ sK3_SY825 @ sK4_SY827 ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[135]) ).

thf(144,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)],[131]) ).

thf(145,plain,
    ( ( ~ ( ~ ! [SX0: $i,SX1: $i] :
                ( ( disjoint @ SX0 @ SX1 )
                | ~ ( ~ ( in @ ( sK12_C @ SX1 @ SX0 ) @ SX0 )
                    | ~ ( in @ ( sK12_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)],[124]) ).

thf(146,plain,
    ( ( ! [SX0: $i] :
          ~ ( ~ ! [SX1: $i,SX2: $i] :
                  ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK13_D @ SX2 @ SX1 @ SX0 ) @ SX2 )
                                | ( ( sK13_D @ SX2 @ SX1 @ SX0 )
                                 != SX0 ) )
                            | ~ ( ~ ( in @ ( sK13_D @ SX2 @ SX1 @ SX0 ) @ SX2 )
                                | ( ( sK13_D @ SX2 @ SX1 @ SX0 )
                                 != SX1 ) ) )
                      | ~ ( ( in @ ( sK13_D @ SX2 @ SX1 @ SX0 ) @ SX2 )
                          | ( ( sK13_D @ SX2 @ SX1 @ SX0 )
                            = SX0 )
                          | ( ( sK13_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)],[121]) ).

thf(147,plain,
    ! [SV1: $i] :
      ( ( ( unordered_pair @ SV1 @ SV1 )
        = ( singleton @ SV1 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[117]) ).

thf(148,plain,
    ! [SV2: $i] :
      ( ( ! [SY828: $i] :
            ( ! [SY829: $i] :
                ( ( singleton @ SV2 )
               != ( unordered_pair @ SY828 @ SY829 ) )
            | ( SV2 = SY828 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[118]) ).

thf(149,plain,
    ! [SV3: $i] :
      ( ( ! [SY830: $i,SY831: $i] :
            ( ( ( singleton @ SV3 )
             != ( unordered_pair @ SY830 @ SY831 ) )
            | ( SY830 = SY831 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[119]) ).

thf(150,plain,
    ! [SV4: $i] :
      ( ( ! [SY832: $i] :
            ( ( unordered_pair @ SV4 @ SY832 )
            = ( unordered_pair @ SY832 @ SV4 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[120]) ).

thf(151,plain,
    ! [SV5: $i] :
      ( ( ( ( singleton @ SV5 )
         != empty_set ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[122]) ).

thf(152,plain,
    ! [SV6: $i] :
      ( ( ! [SY833: $i] :
            ( ~ ( subset @ ( singleton @ SV6 ) @ ( singleton @ SY833 ) )
            | ( SV6 = SY833 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[125]) ).

thf(153,plain,
    ! [SV7: $i] :
      ( ( ! [SY834: $i] :
            ( ~ ( in @ SV7 @ SY834 )
            | ~ ( in @ SY834 @ SV7 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[126]) ).

thf(154,plain,
    ! [SV8: $i] :
      ( ( ! [SY835: $i] :
            ( ~ ( empty @ SY835 )
            | ~ ( in @ SV8 @ SY835 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[134]) ).

thf(155,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( in @ SX0 @ SX1 )
            | ( subset @ ( singleton @ SX0 ) @ SX1 ) )
      | ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( subset @ ( singleton @ SX0 ) @ SX1 )
            | ( in @ SX0 @ SX1 ) ) )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[136]) ).

thf(156,plain,
    ! [SV9: $i] :
      ( ( ~ ( ~ ! [SY836: $i,SY837: $i] :
                  ( ~ ( ~ ( ~ ( in @ ( sK6_D @ SY837 @ SY836 @ SV9 ) @ SV9 )
                          | ( in @ ( sK6_D @ SY837 @ SY836 @ SV9 ) @ SY836 )
                          | ~ ( in @ ( sK6_D @ SY837 @ SY836 @ SV9 ) @ SY837 ) )
                      | ~ ~ ( ~ ( ( in @ ( sK6_D @ SY837 @ SY836 @ SV9 ) @ SV9 )
                                | ( in @ ( sK6_D @ SY837 @ SY836 @ SV9 ) @ SY837 ) )
                            | ~ ( ~ ( in @ ( sK6_D @ SY837 @ SY836 @ SV9 ) @ SY836 )
                                | ( in @ ( sK6_D @ SY837 @ SY836 @ SV9 ) @ SY837 ) ) ) )
                  | ( SY837
                    = ( set_difference @ SV9 @ SY836 ) ) )
            | ~ ! [SY838: $i,SY839: $i] :
                  ( ( SY839
                   != ( set_difference @ SV9 @ SY838 ) )
                  | ~ ( ~ ! [SY840: $i] :
                            ( ~ ( in @ SY840 @ SV9 )
                            | ( in @ SY840 @ SY838 )
                            | ( in @ SY840 @ SY839 ) )
                      | ~ ~ ( ~ ! [SY841: $i] :
                                  ( ~ ( in @ SY841 @ SY839 )
                                  | ( in @ SY841 @ SV9 ) )
                            | ~ ! [SX3: $i] :
                                  ( ~ ( in @ SX3 @ SY839 )
                                  | ~ ( in @ SX3 @ SY838 ) ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[137]) ).

thf(157,plain,
    ( ( ~ ! [SX0: $i] :
            ( ( in @ ( sK10_B @ SX0 ) @ SX0 )
            | ( SX0 = empty_set ) )
      | ~ ! [SX0: $i] :
            ( ( SX0 != empty_set )
            | ! [SX1: $i] :
                ~ ( in @ SX1 @ SX0 ) ) )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[138]) ).

thf(158,plain,
    ! [SV10: $i] :
      ( ( ! [SY843: $i] :
            ( ~ ( ~ ( ~ ( in @ ( sK5_C @ SY843 @ SV10 ) @ SV10 )
                    | ~ ( in @ ( sK5_C @ SY843 @ SV10 ) @ SY843 ) )
                | ~ ( ( in @ ( sK5_C @ SY843 @ SV10 ) @ SV10 )
                    | ( in @ ( sK5_C @ SY843 @ SV10 ) @ SY843 ) ) )
            | ( SV10 = SY843 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[139]) ).

thf(159,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)],[140]) ).

thf(160,plain,
    ! [SV11: $i] :
      ( ( ~ ( ~ ! [SY844: $i,SY845: $i] :
                  ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK9_D @ SY845 @ SY844 @ SV11 ) @ SY845 )
                                | ~ ( in @ ( sK9_D @ SY845 @ SY844 @ SV11 ) @ SV11 ) )
                            | ~ ( ~ ( in @ ( sK9_D @ SY845 @ SY844 @ SV11 ) @ SY845 )
                                | ~ ( in @ ( sK9_D @ SY845 @ SY844 @ SV11 ) @ SY844 ) ) )
                      | ~ ( ( in @ ( sK9_D @ SY845 @ SY844 @ SV11 ) @ SY845 )
                          | ( in @ ( sK9_D @ SY845 @ SY844 @ SV11 ) @ SV11 )
                          | ( in @ ( sK9_D @ SY845 @ SY844 @ SV11 ) @ SY844 ) ) )
                  | ( SY845
                    = ( set_union2 @ SV11 @ SY844 ) ) )
            | ~ ! [SY846: $i,SY847: $i] :
                  ( ( SY847
                   != ( set_union2 @ SV11 @ SY846 ) )
                  | ~ ( ~ ! [SY848: $i] :
                            ( ~ ( in @ SY848 @ SY847 )
                            | ( in @ SY848 @ SV11 )
                            | ( in @ SY848 @ SY846 ) )
                      | ~ ~ ( ~ ! [SY849: $i] :
                                  ( ~ ( in @ SY849 @ SV11 )
                                  | ( in @ SY849 @ SY847 ) )
                            | ~ ! [SX3: $i] :
                                  ( ~ ( in @ SX3 @ SY846 )
                                  | ( in @ SX3 @ SY847 ) ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[141]) ).

thf(161,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( ~ ( ( ( sK11_C @ SX1 @ SX0 )
                     != SX0 )
                    | ~ ( in @ ( sK11_C @ SX1 @ SX0 ) @ SX1 ) )
                | ~ ( ( ( sK11_C @ SX1 @ SX0 )
                      = SX0 )
                    | ( in @ ( sK11_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)],[142]) ).

thf(162,plain,
    ( ( ~ ( ( sK1_A != sK4_SY827 ) )
      | ~ ~ ( ~ ( ( sK1_A != sK3_SY825 ) )
            | ( ( unordered_pair @ sK1_A @ sK2_SY822 )
             != ( unordered_pair @ sK3_SY825 @ sK4_SY827 ) ) ) )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[143]) ).

thf(163,plain,
    ! [SV12: $i] :
      ( ( ~ ( ~ ! [SY851: $i,SY852: $i] :
                  ( ~ ( ~ ( ~ ( in @ ( sK7_D @ SY852 @ SY851 @ SV12 ) @ SV12 )
                          | ~ ( in @ ( sK7_D @ SY852 @ SY851 @ SV12 ) @ SY851 )
                          | ~ ( in @ ( sK7_D @ SY852 @ SY851 @ SV12 ) @ SY852 ) )
                      | ~ ~ ( ~ ( ( in @ ( sK7_D @ SY852 @ SY851 @ SV12 ) @ SV12 )
                                | ( in @ ( sK7_D @ SY852 @ SY851 @ SV12 ) @ SY852 ) )
                            | ~ ( ( in @ ( sK7_D @ SY852 @ SY851 @ SV12 ) @ SY851 )
                                | ( in @ ( sK7_D @ SY852 @ SY851 @ SV12 ) @ SY852 ) ) ) )
                  | ( SY852
                    = ( set_intersection2 @ SV12 @ SY851 ) ) )
            | ~ ! [SY853: $i,SY854: $i] :
                  ( ( SY854
                   != ( set_intersection2 @ SV12 @ SY853 ) )
                  | ~ ( ~ ! [SY855: $i] :
                            ( ~ ( in @ SY855 @ SV12 )
                            | ~ ( in @ SY855 @ SY853 )
                            | ( in @ SY855 @ SY854 ) )
                      | ~ ~ ( ~ ! [SY856: $i] :
                                  ( ~ ( in @ SY856 @ SY854 )
                                  | ( in @ SY856 @ SV12 ) )
                            | ~ ! [SX3: $i] :
                                  ( ~ ( in @ SX3 @ SY854 )
                                  | ( in @ SX3 @ SY853 ) ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[144]) ).

thf(164,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( disjoint @ SX0 @ SX1 )
            | ~ ( ~ ( in @ ( sK12_C @ SX1 @ SX0 ) @ SX0 )
                | ~ ( in @ ( sK12_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)],[145]) ).

thf(165,plain,
    ! [SV13: $i] :
      ( ( ~ ( ~ ! [SY858: $i,SY859: $i] :
                  ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK13_D @ SY859 @ SY858 @ SV13 ) @ SY859 )
                                | ( ( sK13_D @ SY859 @ SY858 @ SV13 )
                                 != SV13 ) )
                            | ~ ( ~ ( in @ ( sK13_D @ SY859 @ SY858 @ SV13 ) @ SY859 )
                                | ( ( sK13_D @ SY859 @ SY858 @ SV13 )
                                 != SY858 ) ) )
                      | ~ ( ( in @ ( sK13_D @ SY859 @ SY858 @ SV13 ) @ SY859 )
                          | ( ( sK13_D @ SY859 @ SY858 @ SV13 )
                            = SV13 )
                          | ( ( sK13_D @ SY859 @ SY858 @ SV13 )
                            = SY858 ) ) )
                  | ( SY859
                    = ( unordered_pair @ SV13 @ SY858 ) ) )
            | ~ ! [SY860: $i,SY861: $i] :
                  ( ( SY861
                   != ( unordered_pair @ SV13 @ SY860 ) )
                  | ~ ( ~ ! [SY862: $i] :
                            ( ~ ( in @ SY862 @ SY861 )
                            | ( SY862 = SV13 )
                            | ( SY862 = SY860 ) )
                      | ~ ~ ( ~ ! [SY863: $i] :
                                  ( ( SY863 != SV13 )
                                  | ( in @ SY863 @ SY861 ) )
                            | ~ ! [SX3: $i] :
                                  ( ( SX3 != SY860 )
                                  | ( in @ SX3 @ SY861 ) ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[146]) ).

thf(166,plain,
    ! [SV14: $i,SV2: $i] :
      ( ( ! [SY865: $i] :
            ( ( singleton @ SV2 )
           != ( unordered_pair @ SV14 @ SY865 ) )
        | ( SV2 = SV14 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[148]) ).

thf(167,plain,
    ! [SV15: $i,SV3: $i] :
      ( ( ! [SY866: $i] :
            ( ( ( singleton @ SV3 )
             != ( unordered_pair @ SV15 @ SY866 ) )
            | ( SV15 = SY866 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[149]) ).

thf(168,plain,
    ! [SV16: $i,SV4: $i] :
      ( ( ( unordered_pair @ SV4 @ SV16 )
        = ( unordered_pair @ SV16 @ SV4 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[150]) ).

thf(169,plain,
    ! [SV5: $i] :
      ( ( ( singleton @ SV5 )
        = empty_set )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[151]) ).

thf(170,plain,
    ! [SV17: $i,SV6: $i] :
      ( ( ~ ( subset @ ( singleton @ SV6 ) @ ( singleton @ SV17 ) )
        | ( SV6 = SV17 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[152]) ).

thf(171,plain,
    ! [SV18: $i,SV7: $i] :
      ( ( ~ ( in @ SV7 @ SV18 )
        | ~ ( in @ SV18 @ SV7 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[153]) ).

thf(172,plain,
    ! [SV8: $i,SV19: $i] :
      ( ( ~ ( empty @ SV19 )
        | ~ ( in @ SV8 @ SV19 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[154]) ).

thf(173,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( in @ SX0 @ SX1 )
            | ( subset @ ( singleton @ SX0 ) @ SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[155]) ).

thf(174,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( subset @ ( singleton @ SX0 ) @ SX1 )
            | ( in @ SX0 @ SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[155]) ).

thf(175,plain,
    ! [SV9: $i] :
      ( ( ~ ! [SY836: $i,SY837: $i] :
              ( ~ ( ~ ( ~ ( in @ ( sK6_D @ SY837 @ SY836 @ SV9 ) @ SV9 )
                      | ( in @ ( sK6_D @ SY837 @ SY836 @ SV9 ) @ SY836 )
                      | ~ ( in @ ( sK6_D @ SY837 @ SY836 @ SV9 ) @ SY837 ) )
                  | ~ ~ ( ~ ( ( in @ ( sK6_D @ SY837 @ SY836 @ SV9 ) @ SV9 )
                            | ( in @ ( sK6_D @ SY837 @ SY836 @ SV9 ) @ SY837 ) )
                        | ~ ( ~ ( in @ ( sK6_D @ SY837 @ SY836 @ SV9 ) @ SY836 )
                            | ( in @ ( sK6_D @ SY837 @ SY836 @ SV9 ) @ SY837 ) ) ) )
              | ( SY837
                = ( set_difference @ SV9 @ SY836 ) ) )
        | ~ ! [SY838: $i,SY839: $i] :
              ( ( SY839
               != ( set_difference @ SV9 @ SY838 ) )
              | ~ ( ~ ! [SY840: $i] :
                        ( ~ ( in @ SY840 @ SV9 )
                        | ( in @ SY840 @ SY838 )
                        | ( in @ SY840 @ SY839 ) )
                  | ~ ~ ( ~ ! [SY841: $i] :
                              ( ~ ( in @ SY841 @ SY839 )
                              | ( in @ SY841 @ SV9 ) )
                        | ~ ! [SX3: $i] :
                              ( ~ ( in @ SX3 @ SY839 )
                              | ~ ( in @ SX3 @ SY838 ) ) ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[156]) ).

thf(176,plain,
    ( ( ~ ! [SX0: $i] :
            ( ( in @ ( sK10_B @ SX0 ) @ SX0 )
            | ( SX0 = empty_set ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[157]) ).

thf(177,plain,
    ( ( ~ ! [SX0: $i] :
            ( ( SX0 != empty_set )
            | ! [SX1: $i] :
                ~ ( in @ SX1 @ SX0 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[157]) ).

thf(178,plain,
    ! [SV10: $i,SV20: $i] :
      ( ( ~ ( ~ ( ~ ( in @ ( sK5_C @ SV20 @ SV10 ) @ SV10 )
                | ~ ( in @ ( sK5_C @ SV20 @ SV10 ) @ SV20 ) )
            | ~ ( ( in @ ( sK5_C @ SV20 @ SV10 ) @ SV10 )
                | ( in @ ( sK5_C @ SV20 @ SV10 ) @ SV20 ) ) )
        | ( SV10 = SV20 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[158]) ).

thf(179,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)],[159]) ).

thf(180,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( subset @ SX0 @ SX1 )
            | ! [SX2: $i] :
                ( ~ ( in @ SX2 @ SX0 )
                | ( in @ SX2 @ SX1 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[159]) ).

thf(181,plain,
    ! [SV11: $i] :
      ( ( ~ ! [SY844: $i,SY845: $i] :
              ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK9_D @ SY845 @ SY844 @ SV11 ) @ SY845 )
                            | ~ ( in @ ( sK9_D @ SY845 @ SY844 @ SV11 ) @ SV11 ) )
                        | ~ ( ~ ( in @ ( sK9_D @ SY845 @ SY844 @ SV11 ) @ SY845 )
                            | ~ ( in @ ( sK9_D @ SY845 @ SY844 @ SV11 ) @ SY844 ) ) )
                  | ~ ( ( in @ ( sK9_D @ SY845 @ SY844 @ SV11 ) @ SY845 )
                      | ( in @ ( sK9_D @ SY845 @ SY844 @ SV11 ) @ SV11 )
                      | ( in @ ( sK9_D @ SY845 @ SY844 @ SV11 ) @ SY844 ) ) )
              | ( SY845
                = ( set_union2 @ SV11 @ SY844 ) ) )
        | ~ ! [SY846: $i,SY847: $i] :
              ( ( SY847
               != ( set_union2 @ SV11 @ SY846 ) )
              | ~ ( ~ ! [SY848: $i] :
                        ( ~ ( in @ SY848 @ SY847 )
                        | ( in @ SY848 @ SV11 )
                        | ( in @ SY848 @ SY846 ) )
                  | ~ ~ ( ~ ! [SY849: $i] :
                              ( ~ ( in @ SY849 @ SV11 )
                              | ( in @ SY849 @ SY847 ) )
                        | ~ ! [SX3: $i] :
                              ( ~ ( in @ SX3 @ SY846 )
                              | ( in @ SX3 @ SY847 ) ) ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[160]) ).

thf(182,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ~ ( ~ ( ( ( sK11_C @ SX1 @ SX0 )
                     != SX0 )
                    | ~ ( in @ ( sK11_C @ SX1 @ SX0 ) @ SX1 ) )
                | ~ ( ( ( sK11_C @ SX1 @ SX0 )
                      = SX0 )
                    | ( in @ ( sK11_C @ SX1 @ SX0 ) @ SX1 ) ) )
            | ( SX1
              = ( singleton @ SX0 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[161]) ).

thf(183,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)],[161]) ).

thf(184,plain,
    ( ( ~ ( ( sK1_A != sK4_SY827 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[162]) ).

thf(185,plain,
    ( ( ~ ~ ( ~ ( ( sK1_A != sK3_SY825 ) )
            | ( ( unordered_pair @ sK1_A @ sK2_SY822 )
             != ( unordered_pair @ sK3_SY825 @ sK4_SY827 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[162]) ).

thf(186,plain,
    ! [SV12: $i] :
      ( ( ~ ! [SY851: $i,SY852: $i] :
              ( ~ ( ~ ( ~ ( in @ ( sK7_D @ SY852 @ SY851 @ SV12 ) @ SV12 )
                      | ~ ( in @ ( sK7_D @ SY852 @ SY851 @ SV12 ) @ SY851 )
                      | ~ ( in @ ( sK7_D @ SY852 @ SY851 @ SV12 ) @ SY852 ) )
                  | ~ ~ ( ~ ( ( in @ ( sK7_D @ SY852 @ SY851 @ SV12 ) @ SV12 )
                            | ( in @ ( sK7_D @ SY852 @ SY851 @ SV12 ) @ SY852 ) )
                        | ~ ( ( in @ ( sK7_D @ SY852 @ SY851 @ SV12 ) @ SY851 )
                            | ( in @ ( sK7_D @ SY852 @ SY851 @ SV12 ) @ SY852 ) ) ) )
              | ( SY852
                = ( set_intersection2 @ SV12 @ SY851 ) ) )
        | ~ ! [SY853: $i,SY854: $i] :
              ( ( SY854
               != ( set_intersection2 @ SV12 @ SY853 ) )
              | ~ ( ~ ! [SY855: $i] :
                        ( ~ ( in @ SY855 @ SV12 )
                        | ~ ( in @ SY855 @ SY853 )
                        | ( in @ SY855 @ SY854 ) )
                  | ~ ~ ( ~ ! [SY856: $i] :
                              ( ~ ( in @ SY856 @ SY854 )
                              | ( in @ SY856 @ SV12 ) )
                        | ~ ! [SX3: $i] :
                              ( ~ ( in @ SX3 @ SY854 )
                              | ( in @ SX3 @ SY853 ) ) ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[163]) ).

thf(187,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( disjoint @ SX0 @ SX1 )
            | ~ ( ~ ( in @ ( sK12_C @ SX1 @ SX0 ) @ SX0 )
                | ~ ( in @ ( sK12_C @ SX1 @ SX0 ) @ SX1 ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[164]) ).

thf(188,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ! [SX2: $i] :
                ( ~ ( in @ SX2 @ SX0 )
                | ~ ( in @ SX2 @ SX1 ) )
            | ~ ( disjoint @ SX0 @ SX1 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[164]) ).

thf(189,plain,
    ! [SV13: $i] :
      ( ( ~ ! [SY858: $i,SY859: $i] :
              ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK13_D @ SY859 @ SY858 @ SV13 ) @ SY859 )
                            | ( ( sK13_D @ SY859 @ SY858 @ SV13 )
                             != SV13 ) )
                        | ~ ( ~ ( in @ ( sK13_D @ SY859 @ SY858 @ SV13 ) @ SY859 )
                            | ( ( sK13_D @ SY859 @ SY858 @ SV13 )
                             != SY858 ) ) )
                  | ~ ( ( in @ ( sK13_D @ SY859 @ SY858 @ SV13 ) @ SY859 )
                      | ( ( sK13_D @ SY859 @ SY858 @ SV13 )
                        = SV13 )
                      | ( ( sK13_D @ SY859 @ SY858 @ SV13 )
                        = SY858 ) ) )
              | ( SY859
                = ( unordered_pair @ SV13 @ SY858 ) ) )
        | ~ ! [SY860: $i,SY861: $i] :
              ( ( SY861
               != ( unordered_pair @ SV13 @ SY860 ) )
              | ~ ( ~ ! [SY862: $i] :
                        ( ~ ( in @ SY862 @ SY861 )
                        | ( SY862 = SV13 )
                        | ( SY862 = SY860 ) )
                  | ~ ~ ( ~ ! [SY863: $i] :
                              ( ( SY863 != SV13 )
                              | ( in @ SY863 @ SY861 ) )
                        | ~ ! [SX3: $i] :
                              ( ( SX3 != SY860 )
                              | ( in @ SX3 @ SY861 ) ) ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[165]) ).

thf(190,plain,
    ! [SV14: $i,SV2: $i] :
      ( ( ( ! [SY865: $i] :
              ( ( singleton @ SV2 )
             != ( unordered_pair @ SV14 @ SY865 ) ) )
        = $true )
      | ( ( SV2 = SV14 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[166]) ).

thf(191,plain,
    ! [SV21: $i,SV15: $i,SV3: $i] :
      ( ( ( ( singleton @ SV3 )
         != ( unordered_pair @ SV15 @ SV21 ) )
        | ( SV15 = SV21 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[167]) ).

thf(192,plain,
    ! [SV17: $i,SV6: $i] :
      ( ( ( ~ ( subset @ ( singleton @ SV6 ) @ ( singleton @ SV17 ) ) )
        = $true )
      | ( ( SV6 = SV17 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[170]) ).

thf(193,plain,
    ! [SV18: $i,SV7: $i] :
      ( ( ( ~ ( in @ SV7 @ SV18 ) )
        = $true )
      | ( ( ~ ( in @ SV18 @ SV7 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[171]) ).

thf(194,plain,
    ! [SV8: $i,SV19: $i] :
      ( ( ( ~ ( empty @ SV19 ) )
        = $true )
      | ( ( ~ ( in @ SV8 @ SV19 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[172]) ).

thf(195,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( in @ SX0 @ SX1 )
          | ( subset @ ( singleton @ SX0 ) @ SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[173]) ).

thf(196,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( subset @ ( singleton @ SX0 ) @ SX1 )
          | ( in @ SX0 @ SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[174]) ).

thf(197,plain,
    ! [SV9: $i] :
      ( ( ~ ! [SY836: $i,SY837: $i] :
              ( ~ ( ~ ( ~ ( in @ ( sK6_D @ SY837 @ SY836 @ SV9 ) @ SV9 )
                      | ( in @ ( sK6_D @ SY837 @ SY836 @ SV9 ) @ SY836 )
                      | ~ ( in @ ( sK6_D @ SY837 @ SY836 @ SV9 ) @ SY837 ) )
                  | ~ ~ ( ~ ( ( in @ ( sK6_D @ SY837 @ SY836 @ SV9 ) @ SV9 )
                            | ( in @ ( sK6_D @ SY837 @ SY836 @ SV9 ) @ SY837 ) )
                        | ~ ( ~ ( in @ ( sK6_D @ SY837 @ SY836 @ SV9 ) @ SY836 )
                            | ( in @ ( sK6_D @ SY837 @ SY836 @ SV9 ) @ SY837 ) ) ) )
              | ( SY837
                = ( set_difference @ SV9 @ SY836 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[175]) ).

thf(198,plain,
    ! [SV9: $i] :
      ( ( ~ ! [SY838: $i,SY839: $i] :
              ( ( SY839
               != ( set_difference @ SV9 @ SY838 ) )
              | ~ ( ~ ! [SY840: $i] :
                        ( ~ ( in @ SY840 @ SV9 )
                        | ( in @ SY840 @ SY838 )
                        | ( in @ SY840 @ SY839 ) )
                  | ~ ~ ( ~ ! [SY841: $i] :
                              ( ~ ( in @ SY841 @ SY839 )
                              | ( in @ SY841 @ SV9 ) )
                        | ~ ! [SX3: $i] :
                              ( ~ ( in @ SX3 @ SY839 )
                              | ~ ( in @ SX3 @ SY838 ) ) ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[175]) ).

thf(199,plain,
    ( ( ! [SX0: $i] :
          ( ( in @ ( sK10_B @ SX0 ) @ SX0 )
          | ( SX0 = empty_set ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[176]) ).

thf(200,plain,
    ( ( ! [SX0: $i] :
          ( ( SX0 != empty_set )
          | ! [SX1: $i] :
              ~ ( in @ SX1 @ SX0 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[177]) ).

thf(201,plain,
    ! [SV10: $i,SV20: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ ( sK5_C @ SV20 @ SV10 ) @ SV10 )
                  | ~ ( in @ ( sK5_C @ SV20 @ SV10 ) @ SV20 ) )
              | ~ ( ( in @ ( sK5_C @ SV20 @ SV10 ) @ SV10 )
                  | ( in @ ( sK5_C @ SV20 @ SV10 ) @ SV20 ) ) ) )
        = $true )
      | ( ( SV10 = SV20 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[178]) ).

thf(202,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)],[179]) ).

thf(203,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( subset @ SX0 @ SX1 )
          | ! [SX2: $i] :
              ( ~ ( in @ SX2 @ SX0 )
              | ( in @ SX2 @ SX1 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[180]) ).

thf(204,plain,
    ! [SV11: $i] :
      ( ( ~ ! [SY844: $i,SY845: $i] :
              ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK9_D @ SY845 @ SY844 @ SV11 ) @ SY845 )
                            | ~ ( in @ ( sK9_D @ SY845 @ SY844 @ SV11 ) @ SV11 ) )
                        | ~ ( ~ ( in @ ( sK9_D @ SY845 @ SY844 @ SV11 ) @ SY845 )
                            | ~ ( in @ ( sK9_D @ SY845 @ SY844 @ SV11 ) @ SY844 ) ) )
                  | ~ ( ( in @ ( sK9_D @ SY845 @ SY844 @ SV11 ) @ SY845 )
                      | ( in @ ( sK9_D @ SY845 @ SY844 @ SV11 ) @ SV11 )
                      | ( in @ ( sK9_D @ SY845 @ SY844 @ SV11 ) @ SY844 ) ) )
              | ( SY845
                = ( set_union2 @ SV11 @ SY844 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[181]) ).

thf(205,plain,
    ! [SV11: $i] :
      ( ( ~ ! [SY846: $i,SY847: $i] :
              ( ( SY847
               != ( set_union2 @ SV11 @ SY846 ) )
              | ~ ( ~ ! [SY848: $i] :
                        ( ~ ( in @ SY848 @ SY847 )
                        | ( in @ SY848 @ SV11 )
                        | ( in @ SY848 @ SY846 ) )
                  | ~ ~ ( ~ ! [SY849: $i] :
                              ( ~ ( in @ SY849 @ SV11 )
                              | ( in @ SY849 @ SY847 ) )
                        | ~ ! [SX3: $i] :
                              ( ~ ( in @ SX3 @ SY846 )
                              | ( in @ SX3 @ SY847 ) ) ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[181]) ).

thf(206,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ~ ( ~ ( ( ( sK11_C @ SX1 @ SX0 )
                   != SX0 )
                  | ~ ( in @ ( sK11_C @ SX1 @ SX0 ) @ SX1 ) )
              | ~ ( ( ( sK11_C @ SX1 @ SX0 )
                    = SX0 )
                  | ( in @ ( sK11_C @ SX1 @ SX0 ) @ SX1 ) ) )
          | ( SX1
            = ( singleton @ SX0 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[182]) ).

thf(207,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)],[183]) ).

thf(208,plain,
    ( ( ( sK1_A != sK4_SY827 ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[184]) ).

thf(209,plain,
    ( ( ~ ( ~ ( ( sK1_A != sK3_SY825 ) )
          | ( ( unordered_pair @ sK1_A @ sK2_SY822 )
           != ( unordered_pair @ sK3_SY825 @ sK4_SY827 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[185]) ).

thf(210,plain,
    ! [SV12: $i] :
      ( ( ~ ! [SY851: $i,SY852: $i] :
              ( ~ ( ~ ( ~ ( in @ ( sK7_D @ SY852 @ SY851 @ SV12 ) @ SV12 )
                      | ~ ( in @ ( sK7_D @ SY852 @ SY851 @ SV12 ) @ SY851 )
                      | ~ ( in @ ( sK7_D @ SY852 @ SY851 @ SV12 ) @ SY852 ) )
                  | ~ ~ ( ~ ( ( in @ ( sK7_D @ SY852 @ SY851 @ SV12 ) @ SV12 )
                            | ( in @ ( sK7_D @ SY852 @ SY851 @ SV12 ) @ SY852 ) )
                        | ~ ( ( in @ ( sK7_D @ SY852 @ SY851 @ SV12 ) @ SY851 )
                            | ( in @ ( sK7_D @ SY852 @ SY851 @ SV12 ) @ SY852 ) ) ) )
              | ( SY852
                = ( set_intersection2 @ SV12 @ SY851 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[186]) ).

thf(211,plain,
    ! [SV12: $i] :
      ( ( ~ ! [SY853: $i,SY854: $i] :
              ( ( SY854
               != ( set_intersection2 @ SV12 @ SY853 ) )
              | ~ ( ~ ! [SY855: $i] :
                        ( ~ ( in @ SY855 @ SV12 )
                        | ~ ( in @ SY855 @ SY853 )
                        | ( in @ SY855 @ SY854 ) )
                  | ~ ~ ( ~ ! [SY856: $i] :
                              ( ~ ( in @ SY856 @ SY854 )
                              | ( in @ SY856 @ SV12 ) )
                        | ~ ! [SX3: $i] :
                              ( ~ ( in @ SX3 @ SY854 )
                              | ( in @ SX3 @ SY853 ) ) ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[186]) ).

thf(212,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ( disjoint @ SX0 @ SX1 )
          | ~ ( ~ ( in @ ( sK12_C @ SX1 @ SX0 ) @ SX0 )
              | ~ ( in @ ( sK12_C @ SX1 @ SX0 ) @ SX1 ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[187]) ).

thf(213,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ! [SX2: $i] :
              ( ~ ( in @ SX2 @ SX0 )
              | ~ ( in @ SX2 @ SX1 ) )
          | ~ ( disjoint @ SX0 @ SX1 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[188]) ).

thf(214,plain,
    ! [SV13: $i] :
      ( ( ~ ! [SY858: $i,SY859: $i] :
              ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK13_D @ SY859 @ SY858 @ SV13 ) @ SY859 )
                            | ( ( sK13_D @ SY859 @ SY858 @ SV13 )
                             != SV13 ) )
                        | ~ ( ~ ( in @ ( sK13_D @ SY859 @ SY858 @ SV13 ) @ SY859 )
                            | ( ( sK13_D @ SY859 @ SY858 @ SV13 )
                             != SY858 ) ) )
                  | ~ ( ( in @ ( sK13_D @ SY859 @ SY858 @ SV13 ) @ SY859 )
                      | ( ( sK13_D @ SY859 @ SY858 @ SV13 )
                        = SV13 )
                      | ( ( sK13_D @ SY859 @ SY858 @ SV13 )
                        = SY858 ) ) )
              | ( SY859
                = ( unordered_pair @ SV13 @ SY858 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[189]) ).

thf(215,plain,
    ! [SV13: $i] :
      ( ( ~ ! [SY860: $i,SY861: $i] :
              ( ( SY861
               != ( unordered_pair @ SV13 @ SY860 ) )
              | ~ ( ~ ! [SY862: $i] :
                        ( ~ ( in @ SY862 @ SY861 )
                        | ( SY862 = SV13 )
                        | ( SY862 = SY860 ) )
                  | ~ ~ ( ~ ! [SY863: $i] :
                              ( ( SY863 != SV13 )
                              | ( in @ SY863 @ SY861 ) )
                        | ~ ! [SX3: $i] :
                              ( ( SX3 != SY860 )
                              | ( in @ SX3 @ SY861 ) ) ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[189]) ).

thf(216,plain,
    ! [SV22: $i,SV14: $i,SV2: $i] :
      ( ( ( ( ( singleton @ SV2 )
           != ( unordered_pair @ SV14 @ SV22 ) ) )
        = $true )
      | ( ( SV2 = SV14 )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[190]) ).

thf(217,plain,
    ! [SV21: $i,SV15: $i,SV3: $i] :
      ( ( ( ( ( singleton @ SV3 )
           != ( unordered_pair @ SV15 @ SV21 ) ) )
        = $true )
      | ( ( SV15 = SV21 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[191]) ).

thf(218,plain,
    ! [SV17: $i,SV6: $i] :
      ( ( ( subset @ ( singleton @ SV6 ) @ ( singleton @ SV17 ) )
        = $false )
      | ( ( SV6 = SV17 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[192]) ).

thf(219,plain,
    ! [SV18: $i,SV7: $i] :
      ( ( ( in @ SV7 @ SV18 )
        = $false )
      | ( ( ~ ( in @ SV18 @ SV7 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[193]) ).

thf(220,plain,
    ! [SV8: $i,SV19: $i] :
      ( ( ( empty @ SV19 )
        = $false )
      | ( ( ~ ( in @ SV8 @ SV19 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[194]) ).

thf(221,plain,
    ! [SV23: $i] :
      ( ( ! [SY867: $i] :
            ( ~ ( in @ SV23 @ SY867 )
            | ( subset @ ( singleton @ SV23 ) @ SY867 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[195]) ).

thf(222,plain,
    ! [SV24: $i] :
      ( ( ! [SY868: $i] :
            ( ~ ( subset @ ( singleton @ SV24 ) @ SY868 )
            | ( in @ SV24 @ SY868 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[196]) ).

thf(223,plain,
    ! [SV9: $i] :
      ( ( ! [SY836: $i,SY837: $i] :
            ( ~ ( ~ ( ~ ( in @ ( sK6_D @ SY837 @ SY836 @ SV9 ) @ SV9 )
                    | ( in @ ( sK6_D @ SY837 @ SY836 @ SV9 ) @ SY836 )
                    | ~ ( in @ ( sK6_D @ SY837 @ SY836 @ SV9 ) @ SY837 ) )
                | ~ ~ ( ~ ( ( in @ ( sK6_D @ SY837 @ SY836 @ SV9 ) @ SV9 )
                          | ( in @ ( sK6_D @ SY837 @ SY836 @ SV9 ) @ SY837 ) )
                      | ~ ( ~ ( in @ ( sK6_D @ SY837 @ SY836 @ SV9 ) @ SY836 )
                          | ( in @ ( sK6_D @ SY837 @ SY836 @ SV9 ) @ SY837 ) ) ) )
            | ( SY837
              = ( set_difference @ SV9 @ SY836 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[197]) ).

thf(224,plain,
    ! [SV9: $i] :
      ( ( ! [SY838: $i,SY839: $i] :
            ( ( SY839
             != ( set_difference @ SV9 @ SY838 ) )
            | ~ ( ~ ! [SY840: $i] :
                      ( ~ ( in @ SY840 @ SV9 )
                      | ( in @ SY840 @ SY838 )
                      | ( in @ SY840 @ SY839 ) )
                | ~ ~ ( ~ ! [SY841: $i] :
                            ( ~ ( in @ SY841 @ SY839 )
                            | ( in @ SY841 @ SV9 ) )
                      | ~ ! [SX3: $i] :
                            ( ~ ( in @ SX3 @ SY839 )
                            | ~ ( in @ SX3 @ SY838 ) ) ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[198]) ).

thf(225,plain,
    ! [SV25: $i] :
      ( ( ( in @ ( sK10_B @ SV25 ) @ SV25 )
        | ( SV25 = empty_set ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[199]) ).

thf(226,plain,
    ! [SV26: $i] :
      ( ( ( SV26 != empty_set )
        | ! [SY869: $i] :
            ~ ( in @ SY869 @ SV26 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[200]) ).

thf(227,plain,
    ! [SV10: $i,SV20: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK5_C @ SV20 @ SV10 ) @ SV10 )
              | ~ ( in @ ( sK5_C @ SV20 @ SV10 ) @ SV20 ) )
          | ~ ( ( in @ ( sK5_C @ SV20 @ SV10 ) @ SV10 )
              | ( in @ ( sK5_C @ SV20 @ SV10 ) @ SV20 ) ) )
        = $false )
      | ( ( SV10 = SV20 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[201]) ).

thf(228,plain,
    ! [SV27: $i] :
      ( ( ! [SY870: $i] :
            ( ~ ( ~ ( in @ ( sK8_C @ SY870 @ SV27 ) @ SV27 )
                | ~ ~ ( in @ ( sK8_C @ SY870 @ SV27 ) @ SY870 ) )
            | ( subset @ SV27 @ SY870 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[202]) ).

thf(229,plain,
    ! [SV28: $i] :
      ( ( ! [SY871: $i] :
            ( ~ ( subset @ SV28 @ SY871 )
            | ! [SY872: $i] :
                ( ~ ( in @ SY872 @ SV28 )
                | ( in @ SY872 @ SY871 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[203]) ).

thf(230,plain,
    ! [SV11: $i] :
      ( ( ! [SY844: $i,SY845: $i] :
            ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK9_D @ SY845 @ SY844 @ SV11 ) @ SY845 )
                          | ~ ( in @ ( sK9_D @ SY845 @ SY844 @ SV11 ) @ SV11 ) )
                      | ~ ( ~ ( in @ ( sK9_D @ SY845 @ SY844 @ SV11 ) @ SY845 )
                          | ~ ( in @ ( sK9_D @ SY845 @ SY844 @ SV11 ) @ SY844 ) ) )
                | ~ ( ( in @ ( sK9_D @ SY845 @ SY844 @ SV11 ) @ SY845 )
                    | ( in @ ( sK9_D @ SY845 @ SY844 @ SV11 ) @ SV11 )
                    | ( in @ ( sK9_D @ SY845 @ SY844 @ SV11 ) @ SY844 ) ) )
            | ( SY845
              = ( set_union2 @ SV11 @ SY844 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[204]) ).

thf(231,plain,
    ! [SV11: $i] :
      ( ( ! [SY846: $i,SY847: $i] :
            ( ( SY847
             != ( set_union2 @ SV11 @ SY846 ) )
            | ~ ( ~ ! [SY848: $i] :
                      ( ~ ( in @ SY848 @ SY847 )
                      | ( in @ SY848 @ SV11 )
                      | ( in @ SY848 @ SY846 ) )
                | ~ ~ ( ~ ! [SY849: $i] :
                            ( ~ ( in @ SY849 @ SV11 )
                            | ( in @ SY849 @ SY847 ) )
                      | ~ ! [SX3: $i] :
                            ( ~ ( in @ SX3 @ SY846 )
                            | ( in @ SX3 @ SY847 ) ) ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[205]) ).

thf(232,plain,
    ! [SV29: $i] :
      ( ( ! [SY873: $i] :
            ( ~ ( ~ ( ( ( sK11_C @ SY873 @ SV29 )
                     != SV29 )
                    | ~ ( in @ ( sK11_C @ SY873 @ SV29 ) @ SY873 ) )
                | ~ ( ( ( sK11_C @ SY873 @ SV29 )
                      = SV29 )
                    | ( in @ ( sK11_C @ SY873 @ SV29 ) @ SY873 ) ) )
            | ( SY873
              = ( singleton @ SV29 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[206]) ).

thf(233,plain,
    ! [SV30: $i] :
      ( ( ! [SY874: $i] :
            ( ( SY874
             != ( singleton @ SV30 ) )
            | ~ ( ~ ! [SY875: $i] :
                      ( ( SY875 != SV30 )
                      | ( in @ SY875 @ SY874 ) )
                | ~ ! [SY876: $i] :
                      ( ~ ( in @ SY876 @ SY874 )
                      | ( SY876 = SV30 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[207]) ).

thf(234,plain,
    ( ( sK1_A = sK4_SY827 )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[208]) ).

thf(235,plain,
    ( ( ~ ( ( sK1_A != sK3_SY825 ) )
      | ( ( unordered_pair @ sK1_A @ sK2_SY822 )
       != ( unordered_pair @ sK3_SY825 @ sK4_SY827 ) ) )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[209]) ).

thf(236,plain,
    ! [SV12: $i] :
      ( ( ! [SY851: $i,SY852: $i] :
            ( ~ ( ~ ( ~ ( in @ ( sK7_D @ SY852 @ SY851 @ SV12 ) @ SV12 )
                    | ~ ( in @ ( sK7_D @ SY852 @ SY851 @ SV12 ) @ SY851 )
                    | ~ ( in @ ( sK7_D @ SY852 @ SY851 @ SV12 ) @ SY852 ) )
                | ~ ~ ( ~ ( ( in @ ( sK7_D @ SY852 @ SY851 @ SV12 ) @ SV12 )
                          | ( in @ ( sK7_D @ SY852 @ SY851 @ SV12 ) @ SY852 ) )
                      | ~ ( ( in @ ( sK7_D @ SY852 @ SY851 @ SV12 ) @ SY851 )
                          | ( in @ ( sK7_D @ SY852 @ SY851 @ SV12 ) @ SY852 ) ) ) )
            | ( SY852
              = ( set_intersection2 @ SV12 @ SY851 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[210]) ).

thf(237,plain,
    ! [SV12: $i] :
      ( ( ! [SY853: $i,SY854: $i] :
            ( ( SY854
             != ( set_intersection2 @ SV12 @ SY853 ) )
            | ~ ( ~ ! [SY855: $i] :
                      ( ~ ( in @ SY855 @ SV12 )
                      | ~ ( in @ SY855 @ SY853 )
                      | ( in @ SY855 @ SY854 ) )
                | ~ ~ ( ~ ! [SY856: $i] :
                            ( ~ ( in @ SY856 @ SY854 )
                            | ( in @ SY856 @ SV12 ) )
                      | ~ ! [SX3: $i] :
                            ( ~ ( in @ SX3 @ SY854 )
                            | ( in @ SX3 @ SY853 ) ) ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[211]) ).

thf(238,plain,
    ! [SV31: $i] :
      ( ( ! [SY877: $i] :
            ( ( disjoint @ SV31 @ SY877 )
            | ~ ( ~ ( in @ ( sK12_C @ SY877 @ SV31 ) @ SV31 )
                | ~ ( in @ ( sK12_C @ SY877 @ SV31 ) @ SY877 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[212]) ).

thf(239,plain,
    ! [SV32: $i] :
      ( ( ! [SY878: $i] :
            ( ! [SY879: $i] :
                ( ~ ( in @ SY879 @ SV32 )
                | ~ ( in @ SY879 @ SY878 ) )
            | ~ ( disjoint @ SV32 @ SY878 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[213]) ).

thf(240,plain,
    ! [SV13: $i] :
      ( ( ! [SY858: $i,SY859: $i] :
            ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK13_D @ SY859 @ SY858 @ SV13 ) @ SY859 )
                          | ( ( sK13_D @ SY859 @ SY858 @ SV13 )
                           != SV13 ) )
                      | ~ ( ~ ( in @ ( sK13_D @ SY859 @ SY858 @ SV13 ) @ SY859 )
                          | ( ( sK13_D @ SY859 @ SY858 @ SV13 )
                           != SY858 ) ) )
                | ~ ( ( in @ ( sK13_D @ SY859 @ SY858 @ SV13 ) @ SY859 )
                    | ( ( sK13_D @ SY859 @ SY858 @ SV13 )
                      = SV13 )
                    | ( ( sK13_D @ SY859 @ SY858 @ SV13 )
                      = SY858 ) ) )
            | ( SY859
              = ( unordered_pair @ SV13 @ SY858 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[214]) ).

thf(241,plain,
    ! [SV13: $i] :
      ( ( ! [SY860: $i,SY861: $i] :
            ( ( SY861
             != ( unordered_pair @ SV13 @ SY860 ) )
            | ~ ( ~ ! [SY862: $i] :
                      ( ~ ( in @ SY862 @ SY861 )
                      | ( SY862 = SV13 )
                      | ( SY862 = SY860 ) )
                | ~ ~ ( ~ ! [SY863: $i] :
                            ( ( SY863 != SV13 )
                            | ( in @ SY863 @ SY861 ) )
                      | ~ ! [SX3: $i] :
                            ( ( SX3 != SY860 )
                            | ( in @ SX3 @ SY861 ) ) ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[215]) ).

thf(242,plain,
    ! [SV22: $i,SV14: $i,SV2: $i] :
      ( ( ( ( singleton @ SV2 )
          = ( unordered_pair @ SV14 @ SV22 ) )
        = $false )
      | ( ( SV2 = SV14 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[216]) ).

thf(243,plain,
    ! [SV21: $i,SV15: $i,SV3: $i] :
      ( ( ( ( singleton @ SV3 )
          = ( unordered_pair @ SV15 @ SV21 ) )
        = $false )
      | ( ( SV15 = SV21 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[217]) ).

thf(244,plain,
    ! [SV7: $i,SV18: $i] :
      ( ( ( in @ SV18 @ SV7 )
        = $false )
      | ( ( in @ SV7 @ SV18 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[219]) ).

thf(245,plain,
    ! [SV19: $i,SV8: $i] :
      ( ( ( in @ SV8 @ SV19 )
        = $false )
      | ( ( empty @ SV19 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[220]) ).

thf(246,plain,
    ! [SV33: $i,SV23: $i] :
      ( ( ~ ( in @ SV23 @ SV33 )
        | ( subset @ ( singleton @ SV23 ) @ SV33 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[221]) ).

thf(247,plain,
    ! [SV34: $i,SV24: $i] :
      ( ( ~ ( subset @ ( singleton @ SV24 ) @ SV34 )
        | ( in @ SV24 @ SV34 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[222]) ).

thf(248,plain,
    ! [SV9: $i,SV35: $i] :
      ( ( ! [SY880: $i] :
            ( ~ ( ~ ( ~ ( in @ ( sK6_D @ SY880 @ SV35 @ SV9 ) @ SV9 )
                    | ( in @ ( sK6_D @ SY880 @ SV35 @ SV9 ) @ SV35 )
                    | ~ ( in @ ( sK6_D @ SY880 @ SV35 @ SV9 ) @ SY880 ) )
                | ~ ~ ( ~ ( ( in @ ( sK6_D @ SY880 @ SV35 @ SV9 ) @ SV9 )
                          | ( in @ ( sK6_D @ SY880 @ SV35 @ SV9 ) @ SY880 ) )
                      | ~ ( ~ ( in @ ( sK6_D @ SY880 @ SV35 @ SV9 ) @ SV35 )
                          | ( in @ ( sK6_D @ SY880 @ SV35 @ SV9 ) @ SY880 ) ) ) )
            | ( SY880
              = ( set_difference @ SV9 @ SV35 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[223]) ).

thf(249,plain,
    ! [SV36: $i,SV9: $i] :
      ( ( ! [SY881: $i] :
            ( ( SY881
             != ( set_difference @ SV9 @ SV36 ) )
            | ~ ( ~ ! [SY882: $i] :
                      ( ~ ( in @ SY882 @ SV9 )
                      | ( in @ SY882 @ SV36 )
                      | ( in @ SY882 @ SY881 ) )
                | ~ ~ ( ~ ! [SY841: $i] :
                            ( ~ ( in @ SY841 @ SY881 )
                            | ( in @ SY841 @ SV9 ) )
                      | ~ ! [SY884: $i] :
                            ( ~ ( in @ SY884 @ SY881 )
                            | ~ ( in @ SY884 @ SV36 ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[224]) ).

thf(250,plain,
    ! [SV25: $i] :
      ( ( ( in @ ( sK10_B @ SV25 ) @ SV25 )
        = $true )
      | ( ( SV25 = empty_set )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[225]) ).

thf(251,plain,
    ! [SV26: $i] :
      ( ( ( ( SV26 != empty_set ) )
        = $true )
      | ( ( ! [SY869: $i] :
              ~ ( in @ SY869 @ SV26 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[226]) ).

thf(252,plain,
    ! [SV10: $i,SV20: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK5_C @ SV20 @ SV10 ) @ SV10 )
              | ~ ( in @ ( sK5_C @ SV20 @ SV10 ) @ SV20 ) ) )
        = $false )
      | ( ( SV10 = SV20 )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[227]) ).

thf(253,plain,
    ! [SV10: $i,SV20: $i] :
      ( ( ( ~ ( ( in @ ( sK5_C @ SV20 @ SV10 ) @ SV10 )
              | ( in @ ( sK5_C @ SV20 @ SV10 ) @ SV20 ) ) )
        = $false )
      | ( ( SV10 = SV20 )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[227]) ).

thf(254,plain,
    ! [SV27: $i,SV37: $i] :
      ( ( ~ ( ~ ( in @ ( sK8_C @ SV37 @ SV27 ) @ SV27 )
            | ~ ~ ( in @ ( sK8_C @ SV37 @ SV27 ) @ SV37 ) )
        | ( subset @ SV27 @ SV37 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[228]) ).

thf(255,plain,
    ! [SV38: $i,SV28: $i] :
      ( ( ~ ( subset @ SV28 @ SV38 )
        | ! [SY885: $i] :
            ( ~ ( in @ SY885 @ SV28 )
            | ( in @ SY885 @ SV38 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[229]) ).

thf(256,plain,
    ! [SV11: $i,SV39: $i] :
      ( ( ! [SY886: $i] :
            ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK9_D @ SY886 @ SV39 @ SV11 ) @ SY886 )
                          | ~ ( in @ ( sK9_D @ SY886 @ SV39 @ SV11 ) @ SV11 ) )
                      | ~ ( ~ ( in @ ( sK9_D @ SY886 @ SV39 @ SV11 ) @ SY886 )
                          | ~ ( in @ ( sK9_D @ SY886 @ SV39 @ SV11 ) @ SV39 ) ) )
                | ~ ( ( in @ ( sK9_D @ SY886 @ SV39 @ SV11 ) @ SY886 )
                    | ( in @ ( sK9_D @ SY886 @ SV39 @ SV11 ) @ SV11 )
                    | ( in @ ( sK9_D @ SY886 @ SV39 @ SV11 ) @ SV39 ) ) )
            | ( SY886
              = ( set_union2 @ SV11 @ SV39 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[230]) ).

thf(257,plain,
    ! [SV40: $i,SV11: $i] :
      ( ( ! [SY887: $i] :
            ( ( SY887
             != ( set_union2 @ SV11 @ SV40 ) )
            | ~ ( ~ ! [SY888: $i] :
                      ( ~ ( in @ SY888 @ SY887 )
                      | ( in @ SY888 @ SV11 )
                      | ( in @ SY888 @ SV40 ) )
                | ~ ~ ( ~ ! [SY849: $i] :
                            ( ~ ( in @ SY849 @ SV11 )
                            | ( in @ SY849 @ SY887 ) )
                      | ~ ! [SY890: $i] :
                            ( ~ ( in @ SY890 @ SV40 )
                            | ( in @ SY890 @ SY887 ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[231]) ).

thf(258,plain,
    ! [SV29: $i,SV41: $i] :
      ( ( ~ ( ~ ( ( ( sK11_C @ SV41 @ SV29 )
                 != SV29 )
                | ~ ( in @ ( sK11_C @ SV41 @ SV29 ) @ SV41 ) )
            | ~ ( ( ( sK11_C @ SV41 @ SV29 )
                  = SV29 )
                | ( in @ ( sK11_C @ SV41 @ SV29 ) @ SV41 ) ) )
        | ( SV41
          = ( singleton @ SV29 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[232]) ).

thf(259,plain,
    ! [SV30: $i,SV42: $i] :
      ( ( ( SV42
         != ( singleton @ SV30 ) )
        | ~ ( ~ ! [SY891: $i] :
                  ( ( SY891 != SV30 )
                  | ( in @ SY891 @ SV42 ) )
            | ~ ! [SY892: $i] :
                  ( ~ ( in @ SY892 @ SV42 )
                  | ( SY892 = SV30 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[233]) ).

thf(260,plain,
    ( ( ~ ( ( sK1_A != sK3_SY825 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[235]) ).

thf(261,plain,
    ( ( ( ( unordered_pair @ sK1_A @ sK2_SY822 )
       != ( unordered_pair @ sK3_SY825 @ sK4_SY827 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[235]) ).

thf(262,plain,
    ! [SV12: $i,SV43: $i] :
      ( ( ! [SY893: $i] :
            ( ~ ( ~ ( ~ ( in @ ( sK7_D @ SY893 @ SV43 @ SV12 ) @ SV12 )
                    | ~ ( in @ ( sK7_D @ SY893 @ SV43 @ SV12 ) @ SV43 )
                    | ~ ( in @ ( sK7_D @ SY893 @ SV43 @ SV12 ) @ SY893 ) )
                | ~ ~ ( ~ ( ( in @ ( sK7_D @ SY893 @ SV43 @ SV12 ) @ SV12 )
                          | ( in @ ( sK7_D @ SY893 @ SV43 @ SV12 ) @ SY893 ) )
                      | ~ ( ( in @ ( sK7_D @ SY893 @ SV43 @ SV12 ) @ SV43 )
                          | ( in @ ( sK7_D @ SY893 @ SV43 @ SV12 ) @ SY893 ) ) ) )
            | ( SY893
              = ( set_intersection2 @ SV12 @ SV43 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[236]) ).

thf(263,plain,
    ! [SV44: $i,SV12: $i] :
      ( ( ! [SY894: $i] :
            ( ( SY894
             != ( set_intersection2 @ SV12 @ SV44 ) )
            | ~ ( ~ ! [SY895: $i] :
                      ( ~ ( in @ SY895 @ SV12 )
                      | ~ ( in @ SY895 @ SV44 )
                      | ( in @ SY895 @ SY894 ) )
                | ~ ~ ( ~ ! [SY856: $i] :
                            ( ~ ( in @ SY856 @ SY894 )
                            | ( in @ SY856 @ SV12 ) )
                      | ~ ! [SY897: $i] :
                            ( ~ ( in @ SY897 @ SY894 )
                            | ( in @ SY897 @ SV44 ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[237]) ).

thf(264,plain,
    ! [SV45: $i,SV31: $i] :
      ( ( ( disjoint @ SV31 @ SV45 )
        | ~ ( ~ ( in @ ( sK12_C @ SV45 @ SV31 ) @ SV31 )
            | ~ ( in @ ( sK12_C @ SV45 @ SV31 ) @ SV45 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[238]) ).

thf(265,plain,
    ! [SV46: $i,SV32: $i] :
      ( ( ! [SY898: $i] :
            ( ~ ( in @ SY898 @ SV32 )
            | ~ ( in @ SY898 @ SV46 ) )
        | ~ ( disjoint @ SV32 @ SV46 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[239]) ).

thf(266,plain,
    ! [SV13: $i,SV47: $i] :
      ( ( ! [SY899: $i] :
            ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK13_D @ SY899 @ SV47 @ SV13 ) @ SY899 )
                          | ( ( sK13_D @ SY899 @ SV47 @ SV13 )
                           != SV13 ) )
                      | ~ ( ~ ( in @ ( sK13_D @ SY899 @ SV47 @ SV13 ) @ SY899 )
                          | ( ( sK13_D @ SY899 @ SV47 @ SV13 )
                           != SV47 ) ) )
                | ~ ( ( in @ ( sK13_D @ SY899 @ SV47 @ SV13 ) @ SY899 )
                    | ( ( sK13_D @ SY899 @ SV47 @ SV13 )
                      = SV13 )
                    | ( ( sK13_D @ SY899 @ SV47 @ SV13 )
                      = SV47 ) ) )
            | ( SY899
              = ( unordered_pair @ SV13 @ SV47 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[240]) ).

thf(267,plain,
    ! [SV48: $i,SV13: $i] :
      ( ( ! [SY900: $i] :
            ( ( SY900
             != ( unordered_pair @ SV13 @ SV48 ) )
            | ~ ( ~ ! [SY901: $i] :
                      ( ~ ( in @ SY901 @ SY900 )
                      | ( SY901 = SV13 )
                      | ( SY901 = SV48 ) )
                | ~ ~ ( ~ ! [SY863: $i] :
                            ( ( SY863 != SV13 )
                            | ( in @ SY863 @ SY900 ) )
                      | ~ ! [SY903: $i] :
                            ( ( SY903 != SV48 )
                            | ( in @ SY903 @ SY900 ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[241]) ).

thf(268,plain,
    ! [SV33: $i,SV23: $i] :
      ( ( ( ~ ( in @ SV23 @ SV33 ) )
        = $true )
      | ( ( subset @ ( singleton @ SV23 ) @ SV33 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[246]) ).

thf(269,plain,
    ! [SV34: $i,SV24: $i] :
      ( ( ( ~ ( subset @ ( singleton @ SV24 ) @ SV34 ) )
        = $true )
      | ( ( in @ SV24 @ SV34 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[247]) ).

thf(270,plain,
    ! [SV9: $i,SV35: $i,SV49: $i] :
      ( ( ~ ( ~ ( ~ ( in @ ( sK6_D @ SV49 @ SV35 @ SV9 ) @ SV9 )
                | ( in @ ( sK6_D @ SV49 @ SV35 @ SV9 ) @ SV35 )
                | ~ ( in @ ( sK6_D @ SV49 @ SV35 @ SV9 ) @ SV49 ) )
            | ~ ~ ( ~ ( ( in @ ( sK6_D @ SV49 @ SV35 @ SV9 ) @ SV9 )
                      | ( in @ ( sK6_D @ SV49 @ SV35 @ SV9 ) @ SV49 ) )
                  | ~ ( ~ ( in @ ( sK6_D @ SV49 @ SV35 @ SV9 ) @ SV35 )
                      | ( in @ ( sK6_D @ SV49 @ SV35 @ SV9 ) @ SV49 ) ) ) )
        | ( SV49
          = ( set_difference @ SV9 @ SV35 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[248]) ).

thf(271,plain,
    ! [SV36: $i,SV9: $i,SV50: $i] :
      ( ( ( SV50
         != ( set_difference @ SV9 @ SV36 ) )
        | ~ ( ~ ! [SY904: $i] :
                  ( ~ ( in @ SY904 @ SV9 )
                  | ( in @ SY904 @ SV36 )
                  | ( in @ SY904 @ SV50 ) )
            | ~ ~ ( ~ ! [SY905: $i] :
                        ( ~ ( in @ SY905 @ SV50 )
                        | ( in @ SY905 @ SV9 ) )
                  | ~ ! [SY906: $i] :
                        ( ~ ( in @ SY906 @ SV50 )
                        | ~ ( in @ SY906 @ SV36 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[249]) ).

thf(272,plain,
    ! [SV26: $i] :
      ( ( ( SV26 = empty_set )
        = $false )
      | ( ( ! [SY869: $i] :
              ~ ( in @ SY869 @ SV26 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[251]) ).

thf(273,plain,
    ! [SV10: $i,SV20: $i] :
      ( ( ( ~ ( in @ ( sK5_C @ SV20 @ SV10 ) @ SV10 )
          | ~ ( in @ ( sK5_C @ SV20 @ SV10 ) @ SV20 ) )
        = $true )
      | ( ( SV10 = SV20 )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[252]) ).

thf(274,plain,
    ! [SV10: $i,SV20: $i] :
      ( ( ( ( in @ ( sK5_C @ SV20 @ SV10 ) @ SV10 )
          | ( in @ ( sK5_C @ SV20 @ SV10 ) @ SV20 ) )
        = $true )
      | ( ( SV10 = SV20 )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[253]) ).

thf(275,plain,
    ! [SV27: $i,SV37: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK8_C @ SV37 @ SV27 ) @ SV27 )
              | ~ ~ ( in @ ( sK8_C @ SV37 @ SV27 ) @ SV37 ) ) )
        = $true )
      | ( ( subset @ SV27 @ SV37 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[254]) ).

thf(276,plain,
    ! [SV38: $i,SV28: $i] :
      ( ( ( ~ ( subset @ SV28 @ SV38 ) )
        = $true )
      | ( ( ! [SY885: $i] :
              ( ~ ( in @ SY885 @ SV28 )
              | ( in @ SY885 @ SV38 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[255]) ).

thf(277,plain,
    ! [SV11: $i,SV39: $i,SV51: $i] :
      ( ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK9_D @ SV51 @ SV39 @ SV11 ) @ SV51 )
                      | ~ ( in @ ( sK9_D @ SV51 @ SV39 @ SV11 ) @ SV11 ) )
                  | ~ ( ~ ( in @ ( sK9_D @ SV51 @ SV39 @ SV11 ) @ SV51 )
                      | ~ ( in @ ( sK9_D @ SV51 @ SV39 @ SV11 ) @ SV39 ) ) )
            | ~ ( ( in @ ( sK9_D @ SV51 @ SV39 @ SV11 ) @ SV51 )
                | ( in @ ( sK9_D @ SV51 @ SV39 @ SV11 ) @ SV11 )
                | ( in @ ( sK9_D @ SV51 @ SV39 @ SV11 ) @ SV39 ) ) )
        | ( SV51
          = ( set_union2 @ SV11 @ SV39 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[256]) ).

thf(278,plain,
    ! [SV40: $i,SV11: $i,SV52: $i] :
      ( ( ( SV52
         != ( set_union2 @ SV11 @ SV40 ) )
        | ~ ( ~ ! [SY907: $i] :
                  ( ~ ( in @ SY907 @ SV52 )
                  | ( in @ SY907 @ SV11 )
                  | ( in @ SY907 @ SV40 ) )
            | ~ ~ ( ~ ! [SY908: $i] :
                        ( ~ ( in @ SY908 @ SV11 )
                        | ( in @ SY908 @ SV52 ) )
                  | ~ ! [SY909: $i] :
                        ( ~ ( in @ SY909 @ SV40 )
                        | ( in @ SY909 @ SV52 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[257]) ).

thf(279,plain,
    ! [SV29: $i,SV41: $i] :
      ( ( ( ~ ( ~ ( ( ( sK11_C @ SV41 @ SV29 )
                   != SV29 )
                  | ~ ( in @ ( sK11_C @ SV41 @ SV29 ) @ SV41 ) )
              | ~ ( ( ( sK11_C @ SV41 @ SV29 )
                    = SV29 )
                  | ( in @ ( sK11_C @ SV41 @ SV29 ) @ SV41 ) ) ) )
        = $true )
      | ( ( SV41
          = ( singleton @ SV29 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[258]) ).

thf(280,plain,
    ! [SV30: $i,SV42: $i] :
      ( ( ( ( SV42
           != ( singleton @ SV30 ) ) )
        = $true )
      | ( ( ~ ( ~ ! [SY891: $i] :
                    ( ( SY891 != SV30 )
                    | ( in @ SY891 @ SV42 ) )
              | ~ ! [SY892: $i] :
                    ( ~ ( in @ SY892 @ SV42 )
                    | ( SY892 = SV30 ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[259]) ).

thf(281,plain,
    ( ( ( sK1_A != sK3_SY825 ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[260]) ).

thf(282,plain,
    ( ( ( unordered_pair @ sK1_A @ sK2_SY822 )
      = ( unordered_pair @ sK3_SY825 @ sK4_SY827 ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[261]) ).

thf(283,plain,
    ! [SV12: $i,SV43: $i,SV53: $i] :
      ( ( ~ ( ~ ( ~ ( in @ ( sK7_D @ SV53 @ SV43 @ SV12 ) @ SV12 )
                | ~ ( in @ ( sK7_D @ SV53 @ SV43 @ SV12 ) @ SV43 )
                | ~ ( in @ ( sK7_D @ SV53 @ SV43 @ SV12 ) @ SV53 ) )
            | ~ ~ ( ~ ( ( in @ ( sK7_D @ SV53 @ SV43 @ SV12 ) @ SV12 )
                      | ( in @ ( sK7_D @ SV53 @ SV43 @ SV12 ) @ SV53 ) )
                  | ~ ( ( in @ ( sK7_D @ SV53 @ SV43 @ SV12 ) @ SV43 )
                      | ( in @ ( sK7_D @ SV53 @ SV43 @ SV12 ) @ SV53 ) ) ) )
        | ( SV53
          = ( set_intersection2 @ SV12 @ SV43 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[262]) ).

thf(284,plain,
    ! [SV44: $i,SV12: $i,SV54: $i] :
      ( ( ( SV54
         != ( set_intersection2 @ SV12 @ SV44 ) )
        | ~ ( ~ ! [SY910: $i] :
                  ( ~ ( in @ SY910 @ SV12 )
                  | ~ ( in @ SY910 @ SV44 )
                  | ( in @ SY910 @ SV54 ) )
            | ~ ~ ( ~ ! [SY911: $i] :
                        ( ~ ( in @ SY911 @ SV54 )
                        | ( in @ SY911 @ SV12 ) )
                  | ~ ! [SY912: $i] :
                        ( ~ ( in @ SY912 @ SV54 )
                        | ( in @ SY912 @ SV44 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[263]) ).

thf(285,plain,
    ! [SV45: $i,SV31: $i] :
      ( ( ( disjoint @ SV31 @ SV45 )
        = $true )
      | ( ( ~ ( ~ ( in @ ( sK12_C @ SV45 @ SV31 ) @ SV31 )
              | ~ ( in @ ( sK12_C @ SV45 @ SV31 ) @ SV45 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[264]) ).

thf(286,plain,
    ! [SV46: $i,SV32: $i] :
      ( ( ( ! [SY898: $i] :
              ( ~ ( in @ SY898 @ SV32 )
              | ~ ( in @ SY898 @ SV46 ) ) )
        = $true )
      | ( ( ~ ( disjoint @ SV32 @ SV46 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[265]) ).

thf(287,plain,
    ! [SV13: $i,SV47: $i,SV55: $i] :
      ( ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK13_D @ SV55 @ SV47 @ SV13 ) @ SV55 )
                      | ( ( sK13_D @ SV55 @ SV47 @ SV13 )
                       != SV13 ) )
                  | ~ ( ~ ( in @ ( sK13_D @ SV55 @ SV47 @ SV13 ) @ SV55 )
                      | ( ( sK13_D @ SV55 @ SV47 @ SV13 )
                       != SV47 ) ) )
            | ~ ( ( in @ ( sK13_D @ SV55 @ SV47 @ SV13 ) @ SV55 )
                | ( ( sK13_D @ SV55 @ SV47 @ SV13 )
                  = SV13 )
                | ( ( sK13_D @ SV55 @ SV47 @ SV13 )
                  = SV47 ) ) )
        | ( SV55
          = ( unordered_pair @ SV13 @ SV47 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[266]) ).

thf(288,plain,
    ! [SV48: $i,SV13: $i,SV56: $i] :
      ( ( ( SV56
         != ( unordered_pair @ SV13 @ SV48 ) )
        | ~ ( ~ ! [SY913: $i] :
                  ( ~ ( in @ SY913 @ SV56 )
                  | ( SY913 = SV13 )
                  | ( SY913 = SV48 ) )
            | ~ ~ ( ~ ! [SY914: $i] :
                        ( ( SY914 != SV13 )
                        | ( in @ SY914 @ SV56 ) )
                  | ~ ! [SY915: $i] :
                        ( ( SY915 != SV48 )
                        | ( in @ SY915 @ SV56 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[267]) ).

thf(289,plain,
    ! [SV33: $i,SV23: $i] :
      ( ( ( in @ SV23 @ SV33 )
        = $false )
      | ( ( subset @ ( singleton @ SV23 ) @ SV33 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[268]) ).

thf(290,plain,
    ! [SV34: $i,SV24: $i] :
      ( ( ( subset @ ( singleton @ SV24 ) @ SV34 )
        = $false )
      | ( ( in @ SV24 @ SV34 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[269]) ).

thf(291,plain,
    ! [SV9: $i,SV35: $i,SV49: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ ( sK6_D @ SV49 @ SV35 @ SV9 ) @ SV9 )
                  | ( in @ ( sK6_D @ SV49 @ SV35 @ SV9 ) @ SV35 )
                  | ~ ( in @ ( sK6_D @ SV49 @ SV35 @ SV9 ) @ SV49 ) )
              | ~ ~ ( ~ ( ( in @ ( sK6_D @ SV49 @ SV35 @ SV9 ) @ SV9 )
                        | ( in @ ( sK6_D @ SV49 @ SV35 @ SV9 ) @ SV49 ) )
                    | ~ ( ~ ( in @ ( sK6_D @ SV49 @ SV35 @ SV9 ) @ SV35 )
                        | ( in @ ( sK6_D @ SV49 @ SV35 @ SV9 ) @ SV49 ) ) ) ) )
        = $true )
      | ( ( SV49
          = ( set_difference @ SV9 @ SV35 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[270]) ).

thf(292,plain,
    ! [SV36: $i,SV9: $i,SV50: $i] :
      ( ( ( ( SV50
           != ( set_difference @ SV9 @ SV36 ) ) )
        = $true )
      | ( ( ~ ( ~ ! [SY904: $i] :
                    ( ~ ( in @ SY904 @ SV9 )
                    | ( in @ SY904 @ SV36 )
                    | ( in @ SY904 @ SV50 ) )
              | ~ ~ ( ~ ! [SY905: $i] :
                          ( ~ ( in @ SY905 @ SV50 )
                          | ( in @ SY905 @ SV9 ) )
                    | ~ ! [SY906: $i] :
                          ( ~ ( in @ SY906 @ SV50 )
                          | ~ ( in @ SY906 @ SV36 ) ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[271]) ).

thf(293,plain,
    ! [SV26: $i,SV57: $i] :
      ( ( ( ~ ( in @ SV57 @ SV26 ) )
        = $true )
      | ( ( SV26 = empty_set )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[272]) ).

thf(294,plain,
    ! [SV10: $i,SV20: $i] :
      ( ( ( ~ ( in @ ( sK5_C @ SV20 @ SV10 ) @ SV10 ) )
        = $true )
      | ( ( ~ ( in @ ( sK5_C @ SV20 @ SV10 ) @ SV20 ) )
        = $true )
      | ( ( SV10 = SV20 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[273]) ).

thf(295,plain,
    ! [SV10: $i,SV20: $i] :
      ( ( ( in @ ( sK5_C @ SV20 @ SV10 ) @ SV10 )
        = $true )
      | ( ( in @ ( sK5_C @ SV20 @ SV10 ) @ SV20 )
        = $true )
      | ( ( SV10 = SV20 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[274]) ).

thf(296,plain,
    ! [SV27: $i,SV37: $i] :
      ( ( ( ~ ( in @ ( sK8_C @ SV37 @ SV27 ) @ SV27 )
          | ~ ~ ( in @ ( sK8_C @ SV37 @ SV27 ) @ SV37 ) )
        = $false )
      | ( ( subset @ SV27 @ SV37 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[275]) ).

thf(297,plain,
    ! [SV38: $i,SV28: $i] :
      ( ( ( subset @ SV28 @ SV38 )
        = $false )
      | ( ( ! [SY885: $i] :
              ( ~ ( in @ SY885 @ SV28 )
              | ( in @ SY885 @ SV38 ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[276]) ).

thf(298,plain,
    ! [SV11: $i,SV39: $i,SV51: $i] :
      ( ( ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK9_D @ SV51 @ SV39 @ SV11 ) @ SV51 )
                        | ~ ( in @ ( sK9_D @ SV51 @ SV39 @ SV11 ) @ SV11 ) )
                    | ~ ( ~ ( in @ ( sK9_D @ SV51 @ SV39 @ SV11 ) @ SV51 )
                        | ~ ( in @ ( sK9_D @ SV51 @ SV39 @ SV11 ) @ SV39 ) ) )
              | ~ ( ( in @ ( sK9_D @ SV51 @ SV39 @ SV11 ) @ SV51 )
                  | ( in @ ( sK9_D @ SV51 @ SV39 @ SV11 ) @ SV11 )
                  | ( in @ ( sK9_D @ SV51 @ SV39 @ SV11 ) @ SV39 ) ) ) )
        = $true )
      | ( ( SV51
          = ( set_union2 @ SV11 @ SV39 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[277]) ).

thf(299,plain,
    ! [SV40: $i,SV11: $i,SV52: $i] :
      ( ( ( ( SV52
           != ( set_union2 @ SV11 @ SV40 ) ) )
        = $true )
      | ( ( ~ ( ~ ! [SY907: $i] :
                    ( ~ ( in @ SY907 @ SV52 )
                    | ( in @ SY907 @ SV11 )
                    | ( in @ SY907 @ SV40 ) )
              | ~ ~ ( ~ ! [SY908: $i] :
                          ( ~ ( in @ SY908 @ SV11 )
                          | ( in @ SY908 @ SV52 ) )
                    | ~ ! [SY909: $i] :
                          ( ~ ( in @ SY909 @ SV40 )
                          | ( in @ SY909 @ SV52 ) ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[278]) ).

thf(300,plain,
    ! [SV29: $i,SV41: $i] :
      ( ( ( ~ ( ( ( sK11_C @ SV41 @ SV29 )
               != SV29 )
              | ~ ( in @ ( sK11_C @ SV41 @ SV29 ) @ SV41 ) )
          | ~ ( ( ( sK11_C @ SV41 @ SV29 )
                = SV29 )
              | ( in @ ( sK11_C @ SV41 @ SV29 ) @ SV41 ) ) )
        = $false )
      | ( ( SV41
          = ( singleton @ SV29 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[279]) ).

thf(301,plain,
    ! [SV30: $i,SV42: $i] :
      ( ( ( SV42
          = ( singleton @ SV30 ) )
        = $false )
      | ( ( ~ ( ~ ! [SY891: $i] :
                    ( ( SY891 != SV30 )
                    | ( in @ SY891 @ SV42 ) )
              | ~ ! [SY892: $i] :
                    ( ~ ( in @ SY892 @ SV42 )
                    | ( SY892 = SV30 ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[280]) ).

thf(302,plain,
    ( ( sK1_A = sK3_SY825 )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[281]) ).

thf(303,plain,
    ! [SV12: $i,SV43: $i,SV53: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ ( sK7_D @ SV53 @ SV43 @ SV12 ) @ SV12 )
                  | ~ ( in @ ( sK7_D @ SV53 @ SV43 @ SV12 ) @ SV43 )
                  | ~ ( in @ ( sK7_D @ SV53 @ SV43 @ SV12 ) @ SV53 ) )
              | ~ ~ ( ~ ( ( in @ ( sK7_D @ SV53 @ SV43 @ SV12 ) @ SV12 )
                        | ( in @ ( sK7_D @ SV53 @ SV43 @ SV12 ) @ SV53 ) )
                    | ~ ( ( in @ ( sK7_D @ SV53 @ SV43 @ SV12 ) @ SV43 )
                        | ( in @ ( sK7_D @ SV53 @ SV43 @ SV12 ) @ SV53 ) ) ) ) )
        = $true )
      | ( ( SV53
          = ( set_intersection2 @ SV12 @ SV43 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[283]) ).

thf(304,plain,
    ! [SV44: $i,SV12: $i,SV54: $i] :
      ( ( ( ( SV54
           != ( set_intersection2 @ SV12 @ SV44 ) ) )
        = $true )
      | ( ( ~ ( ~ ! [SY910: $i] :
                    ( ~ ( in @ SY910 @ SV12 )
                    | ~ ( in @ SY910 @ SV44 )
                    | ( in @ SY910 @ SV54 ) )
              | ~ ~ ( ~ ! [SY911: $i] :
                          ( ~ ( in @ SY911 @ SV54 )
                          | ( in @ SY911 @ SV12 ) )
                    | ~ ! [SY912: $i] :
                          ( ~ ( in @ SY912 @ SV54 )
                          | ( in @ SY912 @ SV44 ) ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[284]) ).

thf(305,plain,
    ! [SV31: $i,SV45: $i] :
      ( ( ( ~ ( in @ ( sK12_C @ SV45 @ SV31 ) @ SV31 )
          | ~ ( in @ ( sK12_C @ SV45 @ SV31 ) @ SV45 ) )
        = $false )
      | ( ( disjoint @ SV31 @ SV45 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[285]) ).

thf(306,plain,
    ! [SV46: $i,SV32: $i,SV58: $i] :
      ( ( ( ~ ( in @ SV58 @ SV32 )
          | ~ ( in @ SV58 @ SV46 ) )
        = $true )
      | ( ( ~ ( disjoint @ SV32 @ SV46 ) )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[286]) ).

thf(307,plain,
    ! [SV13: $i,SV47: $i,SV55: $i] :
      ( ( ( ~ ( ~ ~ ( ~ ( ~ ( in @ ( sK13_D @ SV55 @ SV47 @ SV13 ) @ SV55 )
                        | ( ( sK13_D @ SV55 @ SV47 @ SV13 )
                         != SV13 ) )
                    | ~ ( ~ ( in @ ( sK13_D @ SV55 @ SV47 @ SV13 ) @ SV55 )
                        | ( ( sK13_D @ SV55 @ SV47 @ SV13 )
                         != SV47 ) ) )
              | ~ ( ( in @ ( sK13_D @ SV55 @ SV47 @ SV13 ) @ SV55 )
                  | ( ( sK13_D @ SV55 @ SV47 @ SV13 )
                    = SV13 )
                  | ( ( sK13_D @ SV55 @ SV47 @ SV13 )
                    = SV47 ) ) ) )
        = $true )
      | ( ( SV55
          = ( unordered_pair @ SV13 @ SV47 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[287]) ).

thf(308,plain,
    ! [SV48: $i,SV13: $i,SV56: $i] :
      ( ( ( ( SV56
           != ( unordered_pair @ SV13 @ SV48 ) ) )
        = $true )
      | ( ( ~ ( ~ ! [SY913: $i] :
                    ( ~ ( in @ SY913 @ SV56 )
                    | ( SY913 = SV13 )
                    | ( SY913 = SV48 ) )
              | ~ ~ ( ~ ! [SY914: $i] :
                          ( ( SY914 != SV13 )
                          | ( in @ SY914 @ SV56 ) )
                    | ~ ! [SY915: $i] :
                          ( ( SY915 != SV48 )
                          | ( in @ SY915 @ SV56 ) ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[288]) ).

thf(309,plain,
    ! [SV9: $i,SV35: $i,SV49: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK6_D @ SV49 @ SV35 @ SV9 ) @ SV9 )
              | ( in @ ( sK6_D @ SV49 @ SV35 @ SV9 ) @ SV35 )
              | ~ ( in @ ( sK6_D @ SV49 @ SV35 @ SV9 ) @ SV49 ) )
          | ~ ~ ( ~ ( ( in @ ( sK6_D @ SV49 @ SV35 @ SV9 ) @ SV9 )
                    | ( in @ ( sK6_D @ SV49 @ SV35 @ SV9 ) @ SV49 ) )
                | ~ ( ~ ( in @ ( sK6_D @ SV49 @ SV35 @ SV9 ) @ SV35 )
                    | ( in @ ( sK6_D @ SV49 @ SV35 @ SV9 ) @ SV49 ) ) ) )
        = $false )
      | ( ( SV49
          = ( set_difference @ SV9 @ SV35 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[291]) ).

thf(310,plain,
    ! [SV36: $i,SV9: $i,SV50: $i] :
      ( ( ( SV50
          = ( set_difference @ SV9 @ SV36 ) )
        = $false )
      | ( ( ~ ( ~ ! [SY904: $i] :
                    ( ~ ( in @ SY904 @ SV9 )
                    | ( in @ SY904 @ SV36 )
                    | ( in @ SY904 @ SV50 ) )
              | ~ ~ ( ~ ! [SY905: $i] :
                          ( ~ ( in @ SY905 @ SV50 )
                          | ( in @ SY905 @ SV9 ) )
                    | ~ ! [SY906: $i] :
                          ( ~ ( in @ SY906 @ SV50 )
                          | ~ ( in @ SY906 @ SV36 ) ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[292]) ).

thf(311,plain,
    ! [SV26: $i,SV57: $i] :
      ( ( ( in @ SV57 @ SV26 )
        = $false )
      | ( ( SV26 = empty_set )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[293]) ).

thf(312,plain,
    ! [SV10: $i,SV20: $i] :
      ( ( ( in @ ( sK5_C @ SV20 @ SV10 ) @ SV10 )
        = $false )
      | ( ( ~ ( in @ ( sK5_C @ SV20 @ SV10 ) @ SV20 ) )
        = $true )
      | ( ( SV10 = SV20 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[294]) ).

thf(313,plain,
    ! [SV27: $i,SV37: $i] :
      ( ( ( ~ ( in @ ( sK8_C @ SV37 @ SV27 ) @ SV27 ) )
        = $false )
      | ( ( subset @ SV27 @ SV37 )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[296]) ).

thf(314,plain,
    ! [SV27: $i,SV37: $i] :
      ( ( ( ~ ~ ( in @ ( sK8_C @ SV37 @ SV27 ) @ SV37 ) )
        = $false )
      | ( ( subset @ SV27 @ SV37 )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[296]) ).

thf(315,plain,
    ! [SV38: $i,SV28: $i,SV59: $i] :
      ( ( ( ~ ( in @ SV59 @ SV28 )
          | ( in @ SV59 @ SV38 ) )
        = $true )
      | ( ( subset @ SV28 @ SV38 )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[297]) ).

thf(316,plain,
    ! [SV11: $i,SV39: $i,SV51: $i] :
      ( ( ( ~ ~ ( ~ ( ~ ( in @ ( sK9_D @ SV51 @ SV39 @ SV11 ) @ SV51 )
                    | ~ ( in @ ( sK9_D @ SV51 @ SV39 @ SV11 ) @ SV11 ) )
                | ~ ( ~ ( in @ ( sK9_D @ SV51 @ SV39 @ SV11 ) @ SV51 )
                    | ~ ( in @ ( sK9_D @ SV51 @ SV39 @ SV11 ) @ SV39 ) ) )
          | ~ ( ( in @ ( sK9_D @ SV51 @ SV39 @ SV11 ) @ SV51 )
              | ( in @ ( sK9_D @ SV51 @ SV39 @ SV11 ) @ SV11 )
              | ( in @ ( sK9_D @ SV51 @ SV39 @ SV11 ) @ SV39 ) ) )
        = $false )
      | ( ( SV51
          = ( set_union2 @ SV11 @ SV39 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[298]) ).

thf(317,plain,
    ! [SV40: $i,SV11: $i,SV52: $i] :
      ( ( ( SV52
          = ( set_union2 @ SV11 @ SV40 ) )
        = $false )
      | ( ( ~ ( ~ ! [SY907: $i] :
                    ( ~ ( in @ SY907 @ SV52 )
                    | ( in @ SY907 @ SV11 )
                    | ( in @ SY907 @ SV40 ) )
              | ~ ~ ( ~ ! [SY908: $i] :
                          ( ~ ( in @ SY908 @ SV11 )
                          | ( in @ SY908 @ SV52 ) )
                    | ~ ! [SY909: $i] :
                          ( ~ ( in @ SY909 @ SV40 )
                          | ( in @ SY909 @ SV52 ) ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[299]) ).

thf(318,plain,
    ! [SV29: $i,SV41: $i] :
      ( ( ( ~ ( ( ( sK11_C @ SV41 @ SV29 )
               != SV29 )
              | ~ ( in @ ( sK11_C @ SV41 @ SV29 ) @ SV41 ) ) )
        = $false )
      | ( ( SV41
          = ( singleton @ SV29 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[300]) ).

thf(319,plain,
    ! [SV29: $i,SV41: $i] :
      ( ( ( ~ ( ( ( sK11_C @ SV41 @ SV29 )
                = SV29 )
              | ( in @ ( sK11_C @ SV41 @ SV29 ) @ SV41 ) ) )
        = $false )
      | ( ( SV41
          = ( singleton @ SV29 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[300]) ).

thf(320,plain,
    ! [SV42: $i,SV30: $i] :
      ( ( ( ~ ! [SY891: $i] :
                ( ( SY891 != SV30 )
                | ( in @ SY891 @ SV42 ) )
          | ~ ! [SY892: $i] :
                ( ~ ( in @ SY892 @ SV42 )
                | ( SY892 = SV30 ) ) )
        = $false )
      | ( ( SV42
          = ( singleton @ SV30 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[301]) ).

thf(321,plain,
    ! [SV12: $i,SV43: $i,SV53: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK7_D @ SV53 @ SV43 @ SV12 ) @ SV12 )
              | ~ ( in @ ( sK7_D @ SV53 @ SV43 @ SV12 ) @ SV43 )
              | ~ ( in @ ( sK7_D @ SV53 @ SV43 @ SV12 ) @ SV53 ) )
          | ~ ~ ( ~ ( ( in @ ( sK7_D @ SV53 @ SV43 @ SV12 ) @ SV12 )
                    | ( in @ ( sK7_D @ SV53 @ SV43 @ SV12 ) @ SV53 ) )
                | ~ ( ( in @ ( sK7_D @ SV53 @ SV43 @ SV12 ) @ SV43 )
                    | ( in @ ( sK7_D @ SV53 @ SV43 @ SV12 ) @ SV53 ) ) ) )
        = $false )
      | ( ( SV53
          = ( set_intersection2 @ SV12 @ SV43 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[303]) ).

thf(322,plain,
    ! [SV44: $i,SV12: $i,SV54: $i] :
      ( ( ( SV54
          = ( set_intersection2 @ SV12 @ SV44 ) )
        = $false )
      | ( ( ~ ( ~ ! [SY910: $i] :
                    ( ~ ( in @ SY910 @ SV12 )
                    | ~ ( in @ SY910 @ SV44 )
                    | ( in @ SY910 @ SV54 ) )
              | ~ ~ ( ~ ! [SY911: $i] :
                          ( ~ ( in @ SY911 @ SV54 )
                          | ( in @ SY911 @ SV12 ) )
                    | ~ ! [SY912: $i] :
                          ( ~ ( in @ SY912 @ SV54 )
                          | ( in @ SY912 @ SV44 ) ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[304]) ).

thf(323,plain,
    ! [SV31: $i,SV45: $i] :
      ( ( ( ~ ( in @ ( sK12_C @ SV45 @ SV31 ) @ SV31 ) )
        = $false )
      | ( ( disjoint @ SV31 @ SV45 )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[305]) ).

thf(324,plain,
    ! [SV31: $i,SV45: $i] :
      ( ( ( ~ ( in @ ( sK12_C @ SV45 @ SV31 ) @ SV45 ) )
        = $false )
      | ( ( disjoint @ SV31 @ SV45 )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[305]) ).

thf(325,plain,
    ! [SV46: $i,SV32: $i,SV58: $i] :
      ( ( ( ~ ( in @ SV58 @ SV32 ) )
        = $true )
      | ( ( ~ ( in @ SV58 @ SV46 ) )
        = $true )
      | ( ( ~ ( disjoint @ SV32 @ SV46 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[306]) ).

thf(326,plain,
    ! [SV13: $i,SV47: $i,SV55: $i] :
      ( ( ( ~ ~ ( ~ ( ~ ( in @ ( sK13_D @ SV55 @ SV47 @ SV13 ) @ SV55 )
                    | ( ( sK13_D @ SV55 @ SV47 @ SV13 )
                     != SV13 ) )
                | ~ ( ~ ( in @ ( sK13_D @ SV55 @ SV47 @ SV13 ) @ SV55 )
                    | ( ( sK13_D @ SV55 @ SV47 @ SV13 )
                     != SV47 ) ) )
          | ~ ( ( in @ ( sK13_D @ SV55 @ SV47 @ SV13 ) @ SV55 )
              | ( ( sK13_D @ SV55 @ SV47 @ SV13 )
                = SV13 )
              | ( ( sK13_D @ SV55 @ SV47 @ SV13 )
                = SV47 ) ) )
        = $false )
      | ( ( SV55
          = ( unordered_pair @ SV13 @ SV47 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[307]) ).

thf(327,plain,
    ! [SV48: $i,SV13: $i,SV56: $i] :
      ( ( ( SV56
          = ( unordered_pair @ SV13 @ SV48 ) )
        = $false )
      | ( ( ~ ( ~ ! [SY913: $i] :
                    ( ~ ( in @ SY913 @ SV56 )
                    | ( SY913 = SV13 )
                    | ( SY913 = SV48 ) )
              | ~ ~ ( ~ ! [SY914: $i] :
                          ( ( SY914 != SV13 )
                          | ( in @ SY914 @ SV56 ) )
                    | ~ ! [SY915: $i] :
                          ( ( SY915 != SV48 )
                          | ( in @ SY915 @ SV56 ) ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[308]) ).

thf(328,plain,
    ! [SV9: $i,SV35: $i,SV49: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK6_D @ SV49 @ SV35 @ SV9 ) @ SV9 )
              | ( in @ ( sK6_D @ SV49 @ SV35 @ SV9 ) @ SV35 )
              | ~ ( in @ ( sK6_D @ SV49 @ SV35 @ SV9 ) @ SV49 ) ) )
        = $false )
      | ( ( SV49
          = ( set_difference @ SV9 @ SV35 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[309]) ).

thf(329,plain,
    ! [SV9: $i,SV35: $i,SV49: $i] :
      ( ( ( ~ ~ ( ~ ( ( in @ ( sK6_D @ SV49 @ SV35 @ SV9 ) @ SV9 )
                    | ( in @ ( sK6_D @ SV49 @ SV35 @ SV9 ) @ SV49 ) )
                | ~ ( ~ ( in @ ( sK6_D @ SV49 @ SV35 @ SV9 ) @ SV35 )
                    | ( in @ ( sK6_D @ SV49 @ SV35 @ SV9 ) @ SV49 ) ) ) )
        = $false )
      | ( ( SV49
          = ( set_difference @ SV9 @ SV35 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[309]) ).

thf(330,plain,
    ! [SV50: $i,SV36: $i,SV9: $i] :
      ( ( ( ~ ! [SY904: $i] :
                ( ~ ( in @ SY904 @ SV9 )
                | ( in @ SY904 @ SV36 )
                | ( in @ SY904 @ SV50 ) )
          | ~ ~ ( ~ ! [SY905: $i] :
                      ( ~ ( in @ SY905 @ SV50 )
                      | ( in @ SY905 @ SV9 ) )
                | ~ ! [SY906: $i] :
                      ( ~ ( in @ SY906 @ SV50 )
                      | ~ ( in @ SY906 @ SV36 ) ) ) )
        = $false )
      | ( ( SV50
          = ( set_difference @ SV9 @ SV36 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[310]) ).

thf(331,plain,
    ! [SV10: $i,SV20: $i] :
      ( ( ( in @ ( sK5_C @ SV20 @ SV10 ) @ SV20 )
        = $false )
      | ( ( in @ ( sK5_C @ SV20 @ SV10 ) @ SV10 )
        = $false )
      | ( ( SV10 = SV20 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[312]) ).

thf(332,plain,
    ! [SV27: $i,SV37: $i] :
      ( ( ( in @ ( sK8_C @ SV37 @ SV27 ) @ SV27 )
        = $true )
      | ( ( subset @ SV27 @ SV37 )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[313]) ).

thf(333,plain,
    ! [SV27: $i,SV37: $i] :
      ( ( ( ~ ( in @ ( sK8_C @ SV37 @ SV27 ) @ SV37 ) )
        = $true )
      | ( ( subset @ SV27 @ SV37 )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[314]) ).

thf(334,plain,
    ! [SV38: $i,SV28: $i,SV59: $i] :
      ( ( ( ~ ( in @ SV59 @ SV28 ) )
        = $true )
      | ( ( in @ SV59 @ SV38 )
        = $true )
      | ( ( subset @ SV28 @ SV38 )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[315]) ).

thf(335,plain,
    ! [SV11: $i,SV39: $i,SV51: $i] :
      ( ( ( ~ ~ ( ~ ( ~ ( in @ ( sK9_D @ SV51 @ SV39 @ SV11 ) @ SV51 )
                    | ~ ( in @ ( sK9_D @ SV51 @ SV39 @ SV11 ) @ SV11 ) )
                | ~ ( ~ ( in @ ( sK9_D @ SV51 @ SV39 @ SV11 ) @ SV51 )
                    | ~ ( in @ ( sK9_D @ SV51 @ SV39 @ SV11 ) @ SV39 ) ) ) )
        = $false )
      | ( ( SV51
          = ( set_union2 @ SV11 @ SV39 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[316]) ).

thf(336,plain,
    ! [SV11: $i,SV39: $i,SV51: $i] :
      ( ( ( ~ ( ( in @ ( sK9_D @ SV51 @ SV39 @ SV11 ) @ SV51 )
              | ( in @ ( sK9_D @ SV51 @ SV39 @ SV11 ) @ SV11 )
              | ( in @ ( sK9_D @ SV51 @ SV39 @ SV11 ) @ SV39 ) ) )
        = $false )
      | ( ( SV51
          = ( set_union2 @ SV11 @ SV39 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[316]) ).

thf(337,plain,
    ! [SV40: $i,SV11: $i,SV52: $i] :
      ( ( ( ~ ! [SY907: $i] :
                ( ~ ( in @ SY907 @ SV52 )
                | ( in @ SY907 @ SV11 )
                | ( in @ SY907 @ SV40 ) )
          | ~ ~ ( ~ ! [SY908: $i] :
                      ( ~ ( in @ SY908 @ SV11 )
                      | ( in @ SY908 @ SV52 ) )
                | ~ ! [SY909: $i] :
                      ( ~ ( in @ SY909 @ SV40 )
                      | ( in @ SY909 @ SV52 ) ) ) )
        = $false )
      | ( ( SV52
          = ( set_union2 @ SV11 @ SV40 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[317]) ).

thf(338,plain,
    ! [SV29: $i,SV41: $i] :
      ( ( ( ( ( sK11_C @ SV41 @ SV29 )
           != SV29 )
          | ~ ( in @ ( sK11_C @ SV41 @ SV29 ) @ SV41 ) )
        = $true )
      | ( ( SV41
          = ( singleton @ SV29 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[318]) ).

thf(339,plain,
    ! [SV29: $i,SV41: $i] :
      ( ( ( ( ( sK11_C @ SV41 @ SV29 )
            = SV29 )
          | ( in @ ( sK11_C @ SV41 @ SV29 ) @ SV41 ) )
        = $true )
      | ( ( SV41
          = ( singleton @ SV29 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[319]) ).

thf(340,plain,
    ! [SV42: $i,SV30: $i] :
      ( ( ( ~ ! [SY891: $i] :
                ( ( SY891 != SV30 )
                | ( in @ SY891 @ SV42 ) ) )
        = $false )
      | ( ( SV42
          = ( singleton @ SV30 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[320]) ).

thf(341,plain,
    ! [SV30: $i,SV42: $i] :
      ( ( ( ~ ! [SY892: $i] :
                ( ~ ( in @ SY892 @ SV42 )
                | ( SY892 = SV30 ) ) )
        = $false )
      | ( ( SV42
          = ( singleton @ SV30 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[320]) ).

thf(342,plain,
    ! [SV12: $i,SV43: $i,SV53: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK7_D @ SV53 @ SV43 @ SV12 ) @ SV12 )
              | ~ ( in @ ( sK7_D @ SV53 @ SV43 @ SV12 ) @ SV43 )
              | ~ ( in @ ( sK7_D @ SV53 @ SV43 @ SV12 ) @ SV53 ) ) )
        = $false )
      | ( ( SV53
          = ( set_intersection2 @ SV12 @ SV43 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[321]) ).

thf(343,plain,
    ! [SV12: $i,SV43: $i,SV53: $i] :
      ( ( ( ~ ~ ( ~ ( ( in @ ( sK7_D @ SV53 @ SV43 @ SV12 ) @ SV12 )
                    | ( in @ ( sK7_D @ SV53 @ SV43 @ SV12 ) @ SV53 ) )
                | ~ ( ( in @ ( sK7_D @ SV53 @ SV43 @ SV12 ) @ SV43 )
                    | ( in @ ( sK7_D @ SV53 @ SV43 @ SV12 ) @ SV53 ) ) ) )
        = $false )
      | ( ( SV53
          = ( set_intersection2 @ SV12 @ SV43 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[321]) ).

thf(344,plain,
    ! [SV54: $i,SV44: $i,SV12: $i] :
      ( ( ( ~ ! [SY910: $i] :
                ( ~ ( in @ SY910 @ SV12 )
                | ~ ( in @ SY910 @ SV44 )
                | ( in @ SY910 @ SV54 ) )
          | ~ ~ ( ~ ! [SY911: $i] :
                      ( ~ ( in @ SY911 @ SV54 )
                      | ( in @ SY911 @ SV12 ) )
                | ~ ! [SY912: $i] :
                      ( ~ ( in @ SY912 @ SV54 )
                      | ( in @ SY912 @ SV44 ) ) ) )
        = $false )
      | ( ( SV54
          = ( set_intersection2 @ SV12 @ SV44 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[322]) ).

thf(345,plain,
    ! [SV31: $i,SV45: $i] :
      ( ( ( in @ ( sK12_C @ SV45 @ SV31 ) @ SV31 )
        = $true )
      | ( ( disjoint @ SV31 @ SV45 )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[323]) ).

thf(346,plain,
    ! [SV31: $i,SV45: $i] :
      ( ( ( in @ ( sK12_C @ SV45 @ SV31 ) @ SV45 )
        = $true )
      | ( ( disjoint @ SV31 @ SV45 )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[324]) ).

thf(347,plain,
    ! [SV46: $i,SV32: $i,SV58: $i] :
      ( ( ( in @ SV58 @ SV32 )
        = $false )
      | ( ( ~ ( in @ SV58 @ SV46 ) )
        = $true )
      | ( ( ~ ( disjoint @ SV32 @ SV46 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[325]) ).

thf(348,plain,
    ! [SV13: $i,SV47: $i,SV55: $i] :
      ( ( ( ~ ~ ( ~ ( ~ ( in @ ( sK13_D @ SV55 @ SV47 @ SV13 ) @ SV55 )
                    | ( ( sK13_D @ SV55 @ SV47 @ SV13 )
                     != SV13 ) )
                | ~ ( ~ ( in @ ( sK13_D @ SV55 @ SV47 @ SV13 ) @ SV55 )
                    | ( ( sK13_D @ SV55 @ SV47 @ SV13 )
                     != SV47 ) ) ) )
        = $false )
      | ( ( SV55
          = ( unordered_pair @ SV13 @ SV47 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[326]) ).

thf(349,plain,
    ! [SV13: $i,SV47: $i,SV55: $i] :
      ( ( ( ~ ( ( in @ ( sK13_D @ SV55 @ SV47 @ SV13 ) @ SV55 )
              | ( ( sK13_D @ SV55 @ SV47 @ SV13 )
                = SV13 )
              | ( ( sK13_D @ SV55 @ SV47 @ SV13 )
                = SV47 ) ) )
        = $false )
      | ( ( SV55
          = ( unordered_pair @ SV13 @ SV47 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[326]) ).

thf(350,plain,
    ! [SV48: $i,SV13: $i,SV56: $i] :
      ( ( ( ~ ! [SY913: $i] :
                ( ~ ( in @ SY913 @ SV56 )
                | ( SY913 = SV13 )
                | ( SY913 = SV48 ) )
          | ~ ~ ( ~ ! [SY914: $i] :
                      ( ( SY914 != SV13 )
                      | ( in @ SY914 @ SV56 ) )
                | ~ ! [SY915: $i] :
                      ( ( SY915 != SV48 )
                      | ( in @ SY915 @ SV56 ) ) ) )
        = $false )
      | ( ( SV56
          = ( unordered_pair @ SV13 @ SV48 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[327]) ).

thf(351,plain,
    ! [SV9: $i,SV35: $i,SV49: $i] :
      ( ( ( ~ ( in @ ( sK6_D @ SV49 @ SV35 @ SV9 ) @ SV9 )
          | ( in @ ( sK6_D @ SV49 @ SV35 @ SV9 ) @ SV35 )
          | ~ ( in @ ( sK6_D @ SV49 @ SV35 @ SV9 ) @ SV49 ) )
        = $true )
      | ( ( SV49
          = ( set_difference @ SV9 @ SV35 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[328]) ).

thf(352,plain,
    ! [SV9: $i,SV35: $i,SV49: $i] :
      ( ( ( ~ ( ~ ( ( in @ ( sK6_D @ SV49 @ SV35 @ SV9 ) @ SV9 )
                  | ( in @ ( sK6_D @ SV49 @ SV35 @ SV9 ) @ SV49 ) )
              | ~ ( ~ ( in @ ( sK6_D @ SV49 @ SV35 @ SV9 ) @ SV35 )
                  | ( in @ ( sK6_D @ SV49 @ SV35 @ SV9 ) @ SV49 ) ) ) )
        = $true )
      | ( ( SV49
          = ( set_difference @ SV9 @ SV35 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[329]) ).

thf(353,plain,
    ! [SV50: $i,SV36: $i,SV9: $i] :
      ( ( ( ~ ! [SY904: $i] :
                ( ~ ( in @ SY904 @ SV9 )
                | ( in @ SY904 @ SV36 )
                | ( in @ SY904 @ SV50 ) ) )
        = $false )
      | ( ( SV50
          = ( set_difference @ SV9 @ SV36 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[330]) ).

thf(354,plain,
    ! [SV36: $i,SV9: $i,SV50: $i] :
      ( ( ( ~ ~ ( ~ ! [SY905: $i] :
                      ( ~ ( in @ SY905 @ SV50 )
                      | ( in @ SY905 @ SV9 ) )
                | ~ ! [SY906: $i] :
                      ( ~ ( in @ SY906 @ SV50 )
                      | ~ ( in @ SY906 @ SV36 ) ) ) )
        = $false )
      | ( ( SV50
          = ( set_difference @ SV9 @ SV36 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[330]) ).

thf(355,plain,
    ! [SV27: $i,SV37: $i] :
      ( ( ( in @ ( sK8_C @ SV37 @ SV27 ) @ SV37 )
        = $false )
      | ( ( subset @ SV27 @ SV37 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[333]) ).

thf(356,plain,
    ! [SV38: $i,SV28: $i,SV59: $i] :
      ( ( ( in @ SV59 @ SV28 )
        = $false )
      | ( ( in @ SV59 @ SV38 )
        = $true )
      | ( ( subset @ SV28 @ SV38 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[334]) ).

thf(357,plain,
    ! [SV11: $i,SV39: $i,SV51: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ ( sK9_D @ SV51 @ SV39 @ SV11 ) @ SV51 )
                  | ~ ( in @ ( sK9_D @ SV51 @ SV39 @ SV11 ) @ SV11 ) )
              | ~ ( ~ ( in @ ( sK9_D @ SV51 @ SV39 @ SV11 ) @ SV51 )
                  | ~ ( in @ ( sK9_D @ SV51 @ SV39 @ SV11 ) @ SV39 ) ) ) )
        = $true )
      | ( ( SV51
          = ( set_union2 @ SV11 @ SV39 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[335]) ).

thf(358,plain,
    ! [SV11: $i,SV39: $i,SV51: $i] :
      ( ( ( ( in @ ( sK9_D @ SV51 @ SV39 @ SV11 ) @ SV51 )
          | ( in @ ( sK9_D @ SV51 @ SV39 @ SV11 ) @ SV11 )
          | ( in @ ( sK9_D @ SV51 @ SV39 @ SV11 ) @ SV39 ) )
        = $true )
      | ( ( SV51
          = ( set_union2 @ SV11 @ SV39 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[336]) ).

thf(359,plain,
    ! [SV40: $i,SV11: $i,SV52: $i] :
      ( ( ( ~ ! [SY907: $i] :
                ( ~ ( in @ SY907 @ SV52 )
                | ( in @ SY907 @ SV11 )
                | ( in @ SY907 @ SV40 ) ) )
        = $false )
      | ( ( SV52
          = ( set_union2 @ SV11 @ SV40 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[337]) ).

thf(360,plain,
    ! [SV40: $i,SV52: $i,SV11: $i] :
      ( ( ( ~ ~ ( ~ ! [SY908: $i] :
                      ( ~ ( in @ SY908 @ SV11 )
                      | ( in @ SY908 @ SV52 ) )
                | ~ ! [SY909: $i] :
                      ( ~ ( in @ SY909 @ SV40 )
                      | ( in @ SY909 @ SV52 ) ) ) )
        = $false )
      | ( ( SV52
          = ( set_union2 @ SV11 @ SV40 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[337]) ).

thf(361,plain,
    ! [SV29: $i,SV41: $i] :
      ( ( ( ( ( sK11_C @ SV41 @ SV29 )
           != SV29 ) )
        = $true )
      | ( ( ~ ( in @ ( sK11_C @ SV41 @ SV29 ) @ SV41 ) )
        = $true )
      | ( ( SV41
          = ( singleton @ SV29 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[338]) ).

thf(362,plain,
    ! [SV29: $i,SV41: $i] :
      ( ( ( ( sK11_C @ SV41 @ SV29 )
          = SV29 )
        = $true )
      | ( ( in @ ( sK11_C @ SV41 @ SV29 ) @ SV41 )
        = $true )
      | ( ( SV41
          = ( singleton @ SV29 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[339]) ).

thf(363,plain,
    ! [SV42: $i,SV30: $i] :
      ( ( ( ! [SY891: $i] :
              ( ( SY891 != SV30 )
              | ( in @ SY891 @ SV42 ) ) )
        = $true )
      | ( ( SV42
          = ( singleton @ SV30 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[340]) ).

thf(364,plain,
    ! [SV30: $i,SV42: $i] :
      ( ( ( ! [SY892: $i] :
              ( ~ ( in @ SY892 @ SV42 )
              | ( SY892 = SV30 ) ) )
        = $true )
      | ( ( SV42
          = ( singleton @ SV30 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[341]) ).

thf(365,plain,
    ! [SV12: $i,SV43: $i,SV53: $i] :
      ( ( ( ~ ( in @ ( sK7_D @ SV53 @ SV43 @ SV12 ) @ SV12 )
          | ~ ( in @ ( sK7_D @ SV53 @ SV43 @ SV12 ) @ SV43 )
          | ~ ( in @ ( sK7_D @ SV53 @ SV43 @ SV12 ) @ SV53 ) )
        = $true )
      | ( ( SV53
          = ( set_intersection2 @ SV12 @ SV43 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[342]) ).

thf(366,plain,
    ! [SV12: $i,SV43: $i,SV53: $i] :
      ( ( ( ~ ( ~ ( ( in @ ( sK7_D @ SV53 @ SV43 @ SV12 ) @ SV12 )
                  | ( in @ ( sK7_D @ SV53 @ SV43 @ SV12 ) @ SV53 ) )
              | ~ ( ( in @ ( sK7_D @ SV53 @ SV43 @ SV12 ) @ SV43 )
                  | ( in @ ( sK7_D @ SV53 @ SV43 @ SV12 ) @ SV53 ) ) ) )
        = $true )
      | ( ( SV53
          = ( set_intersection2 @ SV12 @ SV43 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[343]) ).

thf(367,plain,
    ! [SV54: $i,SV44: $i,SV12: $i] :
      ( ( ( ~ ! [SY910: $i] :
                ( ~ ( in @ SY910 @ SV12 )
                | ~ ( in @ SY910 @ SV44 )
                | ( in @ SY910 @ SV54 ) ) )
        = $false )
      | ( ( SV54
          = ( set_intersection2 @ SV12 @ SV44 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[344]) ).

thf(368,plain,
    ! [SV44: $i,SV12: $i,SV54: $i] :
      ( ( ( ~ ~ ( ~ ! [SY911: $i] :
                      ( ~ ( in @ SY911 @ SV54 )
                      | ( in @ SY911 @ SV12 ) )
                | ~ ! [SY912: $i] :
                      ( ~ ( in @ SY912 @ SV54 )
                      | ( in @ SY912 @ SV44 ) ) ) )
        = $false )
      | ( ( SV54
          = ( set_intersection2 @ SV12 @ SV44 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[344]) ).

thf(369,plain,
    ! [SV32: $i,SV46: $i,SV58: $i] :
      ( ( ( in @ SV58 @ SV46 )
        = $false )
      | ( ( in @ SV58 @ SV32 )
        = $false )
      | ( ( ~ ( disjoint @ SV32 @ SV46 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[347]) ).

thf(370,plain,
    ! [SV13: $i,SV47: $i,SV55: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ ( sK13_D @ SV55 @ SV47 @ SV13 ) @ SV55 )
                  | ( ( sK13_D @ SV55 @ SV47 @ SV13 )
                   != SV13 ) )
              | ~ ( ~ ( in @ ( sK13_D @ SV55 @ SV47 @ SV13 ) @ SV55 )
                  | ( ( sK13_D @ SV55 @ SV47 @ SV13 )
                   != SV47 ) ) ) )
        = $true )
      | ( ( SV55
          = ( unordered_pair @ SV13 @ SV47 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[348]) ).

thf(371,plain,
    ! [SV13: $i,SV47: $i,SV55: $i] :
      ( ( ( ( in @ ( sK13_D @ SV55 @ SV47 @ SV13 ) @ SV55 )
          | ( ( sK13_D @ SV55 @ SV47 @ SV13 )
            = SV13 )
          | ( ( sK13_D @ SV55 @ SV47 @ SV13 )
            = SV47 ) )
        = $true )
      | ( ( SV55
          = ( unordered_pair @ SV13 @ SV47 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[349]) ).

thf(372,plain,
    ! [SV48: $i,SV13: $i,SV56: $i] :
      ( ( ( ~ ! [SY913: $i] :
                ( ~ ( in @ SY913 @ SV56 )
                | ( SY913 = SV13 )
                | ( SY913 = SV48 ) ) )
        = $false )
      | ( ( SV56
          = ( unordered_pair @ SV13 @ SV48 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[350]) ).

thf(373,plain,
    ! [SV48: $i,SV56: $i,SV13: $i] :
      ( ( ( ~ ~ ( ~ ! [SY914: $i] :
                      ( ( SY914 != SV13 )
                      | ( in @ SY914 @ SV56 ) )
                | ~ ! [SY915: $i] :
                      ( ( SY915 != SV48 )
                      | ( in @ SY915 @ SV56 ) ) ) )
        = $false )
      | ( ( SV56
          = ( unordered_pair @ SV13 @ SV48 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[350]) ).

thf(374,plain,
    ! [SV9: $i,SV35: $i,SV49: $i] :
      ( ( ( ~ ( in @ ( sK6_D @ SV49 @ SV35 @ SV9 ) @ SV9 )
          | ( in @ ( sK6_D @ SV49 @ SV35 @ SV9 ) @ SV35 ) )
        = $true )
      | ( ( ~ ( in @ ( sK6_D @ SV49 @ SV35 @ SV9 ) @ SV49 ) )
        = $true )
      | ( ( SV49
          = ( set_difference @ SV9 @ SV35 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[351]) ).

thf(375,plain,
    ! [SV9: $i,SV35: $i,SV49: $i] :
      ( ( ( ~ ( ( in @ ( sK6_D @ SV49 @ SV35 @ SV9 ) @ SV9 )
              | ( in @ ( sK6_D @ SV49 @ SV35 @ SV9 ) @ SV49 ) )
          | ~ ( ~ ( in @ ( sK6_D @ SV49 @ SV35 @ SV9 ) @ SV35 )
              | ( in @ ( sK6_D @ SV49 @ SV35 @ SV9 ) @ SV49 ) ) )
        = $false )
      | ( ( SV49
          = ( set_difference @ SV9 @ SV35 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[352]) ).

thf(376,plain,
    ! [SV50: $i,SV36: $i,SV9: $i] :
      ( ( ( ! [SY904: $i] :
              ( ~ ( in @ SY904 @ SV9 )
              | ( in @ SY904 @ SV36 )
              | ( in @ SY904 @ SV50 ) ) )
        = $true )
      | ( ( SV50
          = ( set_difference @ SV9 @ SV36 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[353]) ).

thf(377,plain,
    ! [SV36: $i,SV9: $i,SV50: $i] :
      ( ( ( ~ ( ~ ! [SY905: $i] :
                    ( ~ ( in @ SY905 @ SV50 )
                    | ( in @ SY905 @ SV9 ) )
              | ~ ! [SY906: $i] :
                    ( ~ ( in @ SY906 @ SV50 )
                    | ~ ( in @ SY906 @ SV36 ) ) ) )
        = $true )
      | ( ( SV50
          = ( set_difference @ SV9 @ SV36 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[354]) ).

thf(378,plain,
    ! [SV11: $i,SV39: $i,SV51: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK9_D @ SV51 @ SV39 @ SV11 ) @ SV51 )
              | ~ ( in @ ( sK9_D @ SV51 @ SV39 @ SV11 ) @ SV11 ) )
          | ~ ( ~ ( in @ ( sK9_D @ SV51 @ SV39 @ SV11 ) @ SV51 )
              | ~ ( in @ ( sK9_D @ SV51 @ SV39 @ SV11 ) @ SV39 ) ) )
        = $false )
      | ( ( SV51
          = ( set_union2 @ SV11 @ SV39 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[357]) ).

thf(379,plain,
    ! [SV11: $i,SV39: $i,SV51: $i] :
      ( ( ( in @ ( sK9_D @ SV51 @ SV39 @ SV11 ) @ SV51 )
        = $true )
      | ( ( ( in @ ( sK9_D @ SV51 @ SV39 @ SV11 ) @ SV11 )
          | ( in @ ( sK9_D @ SV51 @ SV39 @ SV11 ) @ SV39 ) )
        = $true )
      | ( ( SV51
          = ( set_union2 @ SV11 @ SV39 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[358]) ).

thf(380,plain,
    ! [SV40: $i,SV11: $i,SV52: $i] :
      ( ( ( ! [SY907: $i] :
              ( ~ ( in @ SY907 @ SV52 )
              | ( in @ SY907 @ SV11 )
              | ( in @ SY907 @ SV40 ) ) )
        = $true )
      | ( ( SV52
          = ( set_union2 @ SV11 @ SV40 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[359]) ).

thf(381,plain,
    ! [SV40: $i,SV52: $i,SV11: $i] :
      ( ( ( ~ ( ~ ! [SY908: $i] :
                    ( ~ ( in @ SY908 @ SV11 )
                    | ( in @ SY908 @ SV52 ) )
              | ~ ! [SY909: $i] :
                    ( ~ ( in @ SY909 @ SV40 )
                    | ( in @ SY909 @ SV52 ) ) ) )
        = $true )
      | ( ( SV52
          = ( set_union2 @ SV11 @ SV40 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[360]) ).

thf(382,plain,
    ! [SV29: $i,SV41: $i] :
      ( ( ( ( sK11_C @ SV41 @ SV29 )
          = SV29 )
        = $false )
      | ( ( ~ ( in @ ( sK11_C @ SV41 @ SV29 ) @ SV41 ) )
        = $true )
      | ( ( SV41
          = ( singleton @ SV29 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[361]) ).

thf(383,plain,
    ! [SV42: $i,SV30: $i,SV60: $i] :
      ( ( ( ( SV60 != SV30 )
          | ( in @ SV60 @ SV42 ) )
        = $true )
      | ( ( SV42
          = ( singleton @ SV30 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[363]) ).

thf(384,plain,
    ! [SV30: $i,SV42: $i,SV61: $i] :
      ( ( ( ~ ( in @ SV61 @ SV42 )
          | ( SV61 = SV30 ) )
        = $true )
      | ( ( SV42
          = ( singleton @ SV30 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[364]) ).

thf(385,plain,
    ! [SV12: $i,SV43: $i,SV53: $i] :
      ( ( ( ~ ( in @ ( sK7_D @ SV53 @ SV43 @ SV12 ) @ SV12 )
          | ~ ( in @ ( sK7_D @ SV53 @ SV43 @ SV12 ) @ SV43 ) )
        = $true )
      | ( ( ~ ( in @ ( sK7_D @ SV53 @ SV43 @ SV12 ) @ SV53 ) )
        = $true )
      | ( ( SV53
          = ( set_intersection2 @ SV12 @ SV43 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[365]) ).

thf(386,plain,
    ! [SV12: $i,SV43: $i,SV53: $i] :
      ( ( ( ~ ( ( in @ ( sK7_D @ SV53 @ SV43 @ SV12 ) @ SV12 )
              | ( in @ ( sK7_D @ SV53 @ SV43 @ SV12 ) @ SV53 ) )
          | ~ ( ( in @ ( sK7_D @ SV53 @ SV43 @ SV12 ) @ SV43 )
              | ( in @ ( sK7_D @ SV53 @ SV43 @ SV12 ) @ SV53 ) ) )
        = $false )
      | ( ( SV53
          = ( set_intersection2 @ SV12 @ SV43 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[366]) ).

thf(387,plain,
    ! [SV54: $i,SV44: $i,SV12: $i] :
      ( ( ( ! [SY910: $i] :
              ( ~ ( in @ SY910 @ SV12 )
              | ~ ( in @ SY910 @ SV44 )
              | ( in @ SY910 @ SV54 ) ) )
        = $true )
      | ( ( SV54
          = ( set_intersection2 @ SV12 @ SV44 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[367]) ).

thf(388,plain,
    ! [SV44: $i,SV12: $i,SV54: $i] :
      ( ( ( ~ ( ~ ! [SY911: $i] :
                    ( ~ ( in @ SY911 @ SV54 )
                    | ( in @ SY911 @ SV12 ) )
              | ~ ! [SY912: $i] :
                    ( ~ ( in @ SY912 @ SV54 )
                    | ( in @ SY912 @ SV44 ) ) ) )
        = $true )
      | ( ( SV54
          = ( set_intersection2 @ SV12 @ SV44 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[368]) ).

thf(389,plain,
    ! [SV58: $i,SV46: $i,SV32: $i] :
      ( ( ( disjoint @ SV32 @ SV46 )
        = $false )
      | ( ( in @ SV58 @ SV32 )
        = $false )
      | ( ( in @ SV58 @ SV46 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[369]) ).

thf(390,plain,
    ! [SV13: $i,SV47: $i,SV55: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK13_D @ SV55 @ SV47 @ SV13 ) @ SV55 )
              | ( ( sK13_D @ SV55 @ SV47 @ SV13 )
               != SV13 ) )
          | ~ ( ~ ( in @ ( sK13_D @ SV55 @ SV47 @ SV13 ) @ SV55 )
              | ( ( sK13_D @ SV55 @ SV47 @ SV13 )
               != SV47 ) ) )
        = $false )
      | ( ( SV55
          = ( unordered_pair @ SV13 @ SV47 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[370]) ).

thf(391,plain,
    ! [SV13: $i,SV47: $i,SV55: $i] :
      ( ( ( in @ ( sK13_D @ SV55 @ SV47 @ SV13 ) @ SV55 )
        = $true )
      | ( ( ( ( sK13_D @ SV55 @ SV47 @ SV13 )
            = SV13 )
          | ( ( sK13_D @ SV55 @ SV47 @ SV13 )
            = SV47 ) )
        = $true )
      | ( ( SV55
          = ( unordered_pair @ SV13 @ SV47 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[371]) ).

thf(392,plain,
    ! [SV48: $i,SV13: $i,SV56: $i] :
      ( ( ( ! [SY913: $i] :
              ( ~ ( in @ SY913 @ SV56 )
              | ( SY913 = SV13 )
              | ( SY913 = SV48 ) ) )
        = $true )
      | ( ( SV56
          = ( unordered_pair @ SV13 @ SV48 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[372]) ).

thf(393,plain,
    ! [SV48: $i,SV56: $i,SV13: $i] :
      ( ( ( ~ ( ~ ! [SY914: $i] :
                    ( ( SY914 != SV13 )
                    | ( in @ SY914 @ SV56 ) )
              | ~ ! [SY915: $i] :
                    ( ( SY915 != SV48 )
                    | ( in @ SY915 @ SV56 ) ) ) )
        = $true )
      | ( ( SV56
          = ( unordered_pair @ SV13 @ SV48 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[373]) ).

thf(394,plain,
    ! [SV9: $i,SV35: $i,SV49: $i] :
      ( ( ( ~ ( in @ ( sK6_D @ SV49 @ SV35 @ SV9 ) @ SV9 ) )
        = $true )
      | ( ( in @ ( sK6_D @ SV49 @ SV35 @ SV9 ) @ SV35 )
        = $true )
      | ( ( ~ ( in @ ( sK6_D @ SV49 @ SV35 @ SV9 ) @ SV49 ) )
        = $true )
      | ( ( SV49
          = ( set_difference @ SV9 @ SV35 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[374]) ).

thf(395,plain,
    ! [SV9: $i,SV35: $i,SV49: $i] :
      ( ( ( ~ ( ( in @ ( sK6_D @ SV49 @ SV35 @ SV9 ) @ SV9 )
              | ( in @ ( sK6_D @ SV49 @ SV35 @ SV9 ) @ SV49 ) ) )
        = $false )
      | ( ( SV49
          = ( set_difference @ SV9 @ SV35 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[375]) ).

thf(396,plain,
    ! [SV9: $i,SV35: $i,SV49: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK6_D @ SV49 @ SV35 @ SV9 ) @ SV35 )
              | ( in @ ( sK6_D @ SV49 @ SV35 @ SV9 ) @ SV49 ) ) )
        = $false )
      | ( ( SV49
          = ( set_difference @ SV9 @ SV35 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[375]) ).

thf(397,plain,
    ! [SV50: $i,SV36: $i,SV9: $i,SV62: $i] :
      ( ( ( ~ ( in @ SV62 @ SV9 )
          | ( in @ SV62 @ SV36 )
          | ( in @ SV62 @ SV50 ) )
        = $true )
      | ( ( SV50
          = ( set_difference @ SV9 @ SV36 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[376]) ).

thf(398,plain,
    ! [SV36: $i,SV9: $i,SV50: $i] :
      ( ( ( ~ ! [SY905: $i] :
                ( ~ ( in @ SY905 @ SV50 )
                | ( in @ SY905 @ SV9 ) )
          | ~ ! [SY906: $i] :
                ( ~ ( in @ SY906 @ SV50 )
                | ~ ( in @ SY906 @ SV36 ) ) )
        = $false )
      | ( ( SV50
          = ( set_difference @ SV9 @ SV36 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[377]) ).

thf(399,plain,
    ! [SV11: $i,SV39: $i,SV51: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK9_D @ SV51 @ SV39 @ SV11 ) @ SV51 )
              | ~ ( in @ ( sK9_D @ SV51 @ SV39 @ SV11 ) @ SV11 ) ) )
        = $false )
      | ( ( SV51
          = ( set_union2 @ SV11 @ SV39 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[378]) ).

thf(400,plain,
    ! [SV11: $i,SV39: $i,SV51: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK9_D @ SV51 @ SV39 @ SV11 ) @ SV51 )
              | ~ ( in @ ( sK9_D @ SV51 @ SV39 @ SV11 ) @ SV39 ) ) )
        = $false )
      | ( ( SV51
          = ( set_union2 @ SV11 @ SV39 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[378]) ).

thf(401,plain,
    ! [SV11: $i,SV39: $i,SV51: $i] :
      ( ( ( in @ ( sK9_D @ SV51 @ SV39 @ SV11 ) @ SV11 )
        = $true )
      | ( ( in @ ( sK9_D @ SV51 @ SV39 @ SV11 ) @ SV39 )
        = $true )
      | ( ( in @ ( sK9_D @ SV51 @ SV39 @ SV11 ) @ SV51 )
        = $true )
      | ( ( SV51
          = ( set_union2 @ SV11 @ SV39 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[379]) ).

thf(402,plain,
    ! [SV40: $i,SV11: $i,SV52: $i,SV63: $i] :
      ( ( ( ~ ( in @ SV63 @ SV52 )
          | ( in @ SV63 @ SV11 )
          | ( in @ SV63 @ SV40 ) )
        = $true )
      | ( ( SV52
          = ( set_union2 @ SV11 @ SV40 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[380]) ).

thf(403,plain,
    ! [SV40: $i,SV52: $i,SV11: $i] :
      ( ( ( ~ ! [SY908: $i] :
                ( ~ ( in @ SY908 @ SV11 )
                | ( in @ SY908 @ SV52 ) )
          | ~ ! [SY909: $i] :
                ( ~ ( in @ SY909 @ SV40 )
                | ( in @ SY909 @ SV52 ) ) )
        = $false )
      | ( ( SV52
          = ( set_union2 @ SV11 @ SV40 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[381]) ).

thf(404,plain,
    ! [SV29: $i,SV41: $i] :
      ( ( ( in @ ( sK11_C @ SV41 @ SV29 ) @ SV41 )
        = $false )
      | ( ( ( sK11_C @ SV41 @ SV29 )
          = SV29 )
        = $false )
      | ( ( SV41
          = ( singleton @ SV29 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[382]) ).

thf(405,plain,
    ! [SV42: $i,SV30: $i,SV60: $i] :
      ( ( ( ( SV60 != SV30 ) )
        = $true )
      | ( ( in @ SV60 @ SV42 )
        = $true )
      | ( ( SV42
          = ( singleton @ SV30 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[383]) ).

thf(406,plain,
    ! [SV30: $i,SV42: $i,SV61: $i] :
      ( ( ( ~ ( in @ SV61 @ SV42 ) )
        = $true )
      | ( ( SV61 = SV30 )
        = $true )
      | ( ( SV42
          = ( singleton @ SV30 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[384]) ).

thf(407,plain,
    ! [SV12: $i,SV43: $i,SV53: $i] :
      ( ( ( ~ ( in @ ( sK7_D @ SV53 @ SV43 @ SV12 ) @ SV12 ) )
        = $true )
      | ( ( ~ ( in @ ( sK7_D @ SV53 @ SV43 @ SV12 ) @ SV43 ) )
        = $true )
      | ( ( ~ ( in @ ( sK7_D @ SV53 @ SV43 @ SV12 ) @ SV53 ) )
        = $true )
      | ( ( SV53
          = ( set_intersection2 @ SV12 @ SV43 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[385]) ).

thf(408,plain,
    ! [SV12: $i,SV43: $i,SV53: $i] :
      ( ( ( ~ ( ( in @ ( sK7_D @ SV53 @ SV43 @ SV12 ) @ SV12 )
              | ( in @ ( sK7_D @ SV53 @ SV43 @ SV12 ) @ SV53 ) ) )
        = $false )
      | ( ( SV53
          = ( set_intersection2 @ SV12 @ SV43 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[386]) ).

thf(409,plain,
    ! [SV12: $i,SV43: $i,SV53: $i] :
      ( ( ( ~ ( ( in @ ( sK7_D @ SV53 @ SV43 @ SV12 ) @ SV43 )
              | ( in @ ( sK7_D @ SV53 @ SV43 @ SV12 ) @ SV53 ) ) )
        = $false )
      | ( ( SV53
          = ( set_intersection2 @ SV12 @ SV43 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[386]) ).

thf(410,plain,
    ! [SV54: $i,SV44: $i,SV12: $i,SV64: $i] :
      ( ( ( ~ ( in @ SV64 @ SV12 )
          | ~ ( in @ SV64 @ SV44 )
          | ( in @ SV64 @ SV54 ) )
        = $true )
      | ( ( SV54
          = ( set_intersection2 @ SV12 @ SV44 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[387]) ).

thf(411,plain,
    ! [SV44: $i,SV12: $i,SV54: $i] :
      ( ( ( ~ ! [SY911: $i] :
                ( ~ ( in @ SY911 @ SV54 )
                | ( in @ SY911 @ SV12 ) )
          | ~ ! [SY912: $i] :
                ( ~ ( in @ SY912 @ SV54 )
                | ( in @ SY912 @ SV44 ) ) )
        = $false )
      | ( ( SV54
          = ( set_intersection2 @ SV12 @ SV44 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[388]) ).

thf(412,plain,
    ! [SV13: $i,SV47: $i,SV55: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK13_D @ SV55 @ SV47 @ SV13 ) @ SV55 )
              | ( ( sK13_D @ SV55 @ SV47 @ SV13 )
               != SV13 ) ) )
        = $false )
      | ( ( SV55
          = ( unordered_pair @ SV13 @ SV47 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[390]) ).

thf(413,plain,
    ! [SV13: $i,SV47: $i,SV55: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK13_D @ SV55 @ SV47 @ SV13 ) @ SV55 )
              | ( ( sK13_D @ SV55 @ SV47 @ SV13 )
               != SV47 ) ) )
        = $false )
      | ( ( SV55
          = ( unordered_pair @ SV13 @ SV47 ) )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[390]) ).

thf(414,plain,
    ! [SV13: $i,SV47: $i,SV55: $i] :
      ( ( ( ( sK13_D @ SV55 @ SV47 @ SV13 )
          = SV13 )
        = $true )
      | ( ( ( sK13_D @ SV55 @ SV47 @ SV13 )
          = SV47 )
        = $true )
      | ( ( in @ ( sK13_D @ SV55 @ SV47 @ SV13 ) @ SV55 )
        = $true )
      | ( ( SV55
          = ( unordered_pair @ SV13 @ SV47 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[391]) ).

thf(415,plain,
    ! [SV48: $i,SV13: $i,SV56: $i,SV65: $i] :
      ( ( ( ~ ( in @ SV65 @ SV56 )
          | ( SV65 = SV13 )
          | ( SV65 = SV48 ) )
        = $true )
      | ( ( SV56
          = ( unordered_pair @ SV13 @ SV48 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[392]) ).

thf(416,plain,
    ! [SV48: $i,SV56: $i,SV13: $i] :
      ( ( ( ~ ! [SY914: $i] :
                ( ( SY914 != SV13 )
                | ( in @ SY914 @ SV56 ) )
          | ~ ! [SY915: $i] :
                ( ( SY915 != SV48 )
                | ( in @ SY915 @ SV56 ) ) )
        = $false )
      | ( ( SV56
          = ( unordered_pair @ SV13 @ SV48 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[393]) ).

thf(417,plain,
    ! [SV9: $i,SV35: $i,SV49: $i] :
      ( ( ( in @ ( sK6_D @ SV49 @ SV35 @ SV9 ) @ SV9 )
        = $false )
      | ( ( in @ ( sK6_D @ SV49 @ SV35 @ SV9 ) @ SV35 )
        = $true )
      | ( ( ~ ( in @ ( sK6_D @ SV49 @ SV35 @ SV9 ) @ SV49 ) )
        = $true )
      | ( ( SV49
          = ( set_difference @ SV9 @ SV35 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[394]) ).

thf(418,plain,
    ! [SV9: $i,SV35: $i,SV49: $i] :
      ( ( ( ( in @ ( sK6_D @ SV49 @ SV35 @ SV9 ) @ SV9 )
          | ( in @ ( sK6_D @ SV49 @ SV35 @ SV9 ) @ SV49 ) )
        = $true )
      | ( ( SV49
          = ( set_difference @ SV9 @ SV35 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[395]) ).

thf(419,plain,
    ! [SV9: $i,SV35: $i,SV49: $i] :
      ( ( ( ~ ( in @ ( sK6_D @ SV49 @ SV35 @ SV9 ) @ SV35 )
          | ( in @ ( sK6_D @ SV49 @ SV35 @ SV9 ) @ SV49 ) )
        = $true )
      | ( ( SV49
          = ( set_difference @ SV9 @ SV35 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[396]) ).

thf(420,plain,
    ! [SV50: $i,SV36: $i,SV9: $i,SV62: $i] :
      ( ( ( ~ ( in @ SV62 @ SV9 )
          | ( in @ SV62 @ SV36 ) )
        = $true )
      | ( ( in @ SV62 @ SV50 )
        = $true )
      | ( ( SV50
          = ( set_difference @ SV9 @ SV36 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[397]) ).

thf(421,plain,
    ! [SV36: $i,SV9: $i,SV50: $i] :
      ( ( ( ~ ! [SY905: $i] :
                ( ~ ( in @ SY905 @ SV50 )
                | ( in @ SY905 @ SV9 ) ) )
        = $false )
      | ( ( SV50
          = ( set_difference @ SV9 @ SV36 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[398]) ).

thf(422,plain,
    ! [SV9: $i,SV36: $i,SV50: $i] :
      ( ( ( ~ ! [SY906: $i] :
                ( ~ ( in @ SY906 @ SV50 )
                | ~ ( in @ SY906 @ SV36 ) ) )
        = $false )
      | ( ( SV50
          = ( set_difference @ SV9 @ SV36 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[398]) ).

thf(423,plain,
    ! [SV11: $i,SV39: $i,SV51: $i] :
      ( ( ( ~ ( in @ ( sK9_D @ SV51 @ SV39 @ SV11 ) @ SV51 )
          | ~ ( in @ ( sK9_D @ SV51 @ SV39 @ SV11 ) @ SV11 ) )
        = $true )
      | ( ( SV51
          = ( set_union2 @ SV11 @ SV39 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[399]) ).

thf(424,plain,
    ! [SV11: $i,SV39: $i,SV51: $i] :
      ( ( ( ~ ( in @ ( sK9_D @ SV51 @ SV39 @ SV11 ) @ SV51 )
          | ~ ( in @ ( sK9_D @ SV51 @ SV39 @ SV11 ) @ SV39 ) )
        = $true )
      | ( ( SV51
          = ( set_union2 @ SV11 @ SV39 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[400]) ).

thf(425,plain,
    ! [SV40: $i,SV11: $i,SV52: $i,SV63: $i] :
      ( ( ( ~ ( in @ SV63 @ SV52 ) )
        = $true )
      | ( ( ( in @ SV63 @ SV11 )
          | ( in @ SV63 @ SV40 ) )
        = $true )
      | ( ( SV52
          = ( set_union2 @ SV11 @ SV40 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[402]) ).

thf(426,plain,
    ! [SV40: $i,SV52: $i,SV11: $i] :
      ( ( ( ~ ! [SY908: $i] :
                ( ~ ( in @ SY908 @ SV11 )
                | ( in @ SY908 @ SV52 ) ) )
        = $false )
      | ( ( SV52
          = ( set_union2 @ SV11 @ SV40 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[403]) ).

thf(427,plain,
    ! [SV11: $i,SV52: $i,SV40: $i] :
      ( ( ( ~ ! [SY909: $i] :
                ( ~ ( in @ SY909 @ SV40 )
                | ( in @ SY909 @ SV52 ) ) )
        = $false )
      | ( ( SV52
          = ( set_union2 @ SV11 @ SV40 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[403]) ).

thf(428,plain,
    ! [SV42: $i,SV30: $i,SV60: $i] :
      ( ( ( SV60 = SV30 )
        = $false )
      | ( ( in @ SV60 @ SV42 )
        = $true )
      | ( ( SV42
          = ( singleton @ SV30 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[405]) ).

thf(429,plain,
    ! [SV30: $i,SV42: $i,SV61: $i] :
      ( ( ( in @ SV61 @ SV42 )
        = $false )
      | ( ( SV61 = SV30 )
        = $true )
      | ( ( SV42
          = ( singleton @ SV30 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[406]) ).

thf(430,plain,
    ! [SV12: $i,SV43: $i,SV53: $i] :
      ( ( ( in @ ( sK7_D @ SV53 @ SV43 @ SV12 ) @ SV12 )
        = $false )
      | ( ( ~ ( in @ ( sK7_D @ SV53 @ SV43 @ SV12 ) @ SV43 ) )
        = $true )
      | ( ( ~ ( in @ ( sK7_D @ SV53 @ SV43 @ SV12 ) @ SV53 ) )
        = $true )
      | ( ( SV53
          = ( set_intersection2 @ SV12 @ SV43 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[407]) ).

thf(431,plain,
    ! [SV12: $i,SV43: $i,SV53: $i] :
      ( ( ( ( in @ ( sK7_D @ SV53 @ SV43 @ SV12 ) @ SV12 )
          | ( in @ ( sK7_D @ SV53 @ SV43 @ SV12 ) @ SV53 ) )
        = $true )
      | ( ( SV53
          = ( set_intersection2 @ SV12 @ SV43 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[408]) ).

thf(432,plain,
    ! [SV12: $i,SV43: $i,SV53: $i] :
      ( ( ( ( in @ ( sK7_D @ SV53 @ SV43 @ SV12 ) @ SV43 )
          | ( in @ ( sK7_D @ SV53 @ SV43 @ SV12 ) @ SV53 ) )
        = $true )
      | ( ( SV53
          = ( set_intersection2 @ SV12 @ SV43 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[409]) ).

thf(433,plain,
    ! [SV54: $i,SV44: $i,SV12: $i,SV64: $i] :
      ( ( ( ~ ( in @ SV64 @ SV12 )
          | ~ ( in @ SV64 @ SV44 ) )
        = $true )
      | ( ( in @ SV64 @ SV54 )
        = $true )
      | ( ( SV54
          = ( set_intersection2 @ SV12 @ SV44 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[410]) ).

thf(434,plain,
    ! [SV44: $i,SV12: $i,SV54: $i] :
      ( ( ( ~ ! [SY911: $i] :
                ( ~ ( in @ SY911 @ SV54 )
                | ( in @ SY911 @ SV12 ) ) )
        = $false )
      | ( ( SV54
          = ( set_intersection2 @ SV12 @ SV44 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[411]) ).

thf(435,plain,
    ! [SV12: $i,SV44: $i,SV54: $i] :
      ( ( ( ~ ! [SY912: $i] :
                ( ~ ( in @ SY912 @ SV54 )
                | ( in @ SY912 @ SV44 ) ) )
        = $false )
      | ( ( SV54
          = ( set_intersection2 @ SV12 @ SV44 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[411]) ).

thf(436,plain,
    ! [SV13: $i,SV47: $i,SV55: $i] :
      ( ( ( ~ ( in @ ( sK13_D @ SV55 @ SV47 @ SV13 ) @ SV55 )
          | ( ( sK13_D @ SV55 @ SV47 @ SV13 )
           != SV13 ) )
        = $true )
      | ( ( SV55
          = ( unordered_pair @ SV13 @ SV47 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[412]) ).

thf(437,plain,
    ! [SV13: $i,SV47: $i,SV55: $i] :
      ( ( ( ~ ( in @ ( sK13_D @ SV55 @ SV47 @ SV13 ) @ SV55 )
          | ( ( sK13_D @ SV55 @ SV47 @ SV13 )
           != SV47 ) )
        = $true )
      | ( ( SV55
          = ( unordered_pair @ SV13 @ SV47 ) )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[413]) ).

thf(438,plain,
    ! [SV48: $i,SV13: $i,SV56: $i,SV65: $i] :
      ( ( ( ~ ( in @ SV65 @ SV56 ) )
        = $true )
      | ( ( ( SV65 = SV13 )
          | ( SV65 = SV48 ) )
        = $true )
      | ( ( SV56
          = ( unordered_pair @ SV13 @ SV48 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[415]) ).

thf(439,plain,
    ! [SV48: $i,SV56: $i,SV13: $i] :
      ( ( ( ~ ! [SY914: $i] :
                ( ( SY914 != SV13 )
                | ( in @ SY914 @ SV56 ) ) )
        = $false )
      | ( ( SV56
          = ( unordered_pair @ SV13 @ SV48 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[416]) ).

thf(440,plain,
    ! [SV13: $i,SV56: $i,SV48: $i] :
      ( ( ( ~ ! [SY915: $i] :
                ( ( SY915 != SV48 )
                | ( in @ SY915 @ SV56 ) ) )
        = $false )
      | ( ( SV56
          = ( unordered_pair @ SV13 @ SV48 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[416]) ).

thf(441,plain,
    ! [SV9: $i,SV35: $i,SV49: $i] :
      ( ( ( in @ ( sK6_D @ SV49 @ SV35 @ SV9 ) @ SV49 )
        = $false )
      | ( ( in @ ( sK6_D @ SV49 @ SV35 @ SV9 ) @ SV35 )
        = $true )
      | ( ( in @ ( sK6_D @ SV49 @ SV35 @ SV9 ) @ SV9 )
        = $false )
      | ( ( SV49
          = ( set_difference @ SV9 @ SV35 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[417]) ).

thf(442,plain,
    ! [SV9: $i,SV35: $i,SV49: $i] :
      ( ( ( in @ ( sK6_D @ SV49 @ SV35 @ SV9 ) @ SV9 )
        = $true )
      | ( ( in @ ( sK6_D @ SV49 @ SV35 @ SV9 ) @ SV49 )
        = $true )
      | ( ( SV49
          = ( set_difference @ SV9 @ SV35 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[418]) ).

thf(443,plain,
    ! [SV9: $i,SV35: $i,SV49: $i] :
      ( ( ( ~ ( in @ ( sK6_D @ SV49 @ SV35 @ SV9 ) @ SV35 ) )
        = $true )
      | ( ( in @ ( sK6_D @ SV49 @ SV35 @ SV9 ) @ SV49 )
        = $true )
      | ( ( SV49
          = ( set_difference @ SV9 @ SV35 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[419]) ).

thf(444,plain,
    ! [SV50: $i,SV36: $i,SV9: $i,SV62: $i] :
      ( ( ( ~ ( in @ SV62 @ SV9 ) )
        = $true )
      | ( ( in @ SV62 @ SV36 )
        = $true )
      | ( ( in @ SV62 @ SV50 )
        = $true )
      | ( ( SV50
          = ( set_difference @ SV9 @ SV36 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[420]) ).

thf(445,plain,
    ! [SV36: $i,SV9: $i,SV50: $i] :
      ( ( ( ! [SY905: $i] :
              ( ~ ( in @ SY905 @ SV50 )
              | ( in @ SY905 @ SV9 ) ) )
        = $true )
      | ( ( SV50
          = ( set_difference @ SV9 @ SV36 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[421]) ).

thf(446,plain,
    ! [SV9: $i,SV36: $i,SV50: $i] :
      ( ( ( ! [SY906: $i] :
              ( ~ ( in @ SY906 @ SV50 )
              | ~ ( in @ SY906 @ SV36 ) ) )
        = $true )
      | ( ( SV50
          = ( set_difference @ SV9 @ SV36 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[422]) ).

thf(447,plain,
    ! [SV11: $i,SV39: $i,SV51: $i] :
      ( ( ( ~ ( in @ ( sK9_D @ SV51 @ SV39 @ SV11 ) @ SV51 ) )
        = $true )
      | ( ( ~ ( in @ ( sK9_D @ SV51 @ SV39 @ SV11 ) @ SV11 ) )
        = $true )
      | ( ( SV51
          = ( set_union2 @ SV11 @ SV39 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[423]) ).

thf(448,plain,
    ! [SV11: $i,SV39: $i,SV51: $i] :
      ( ( ( ~ ( in @ ( sK9_D @ SV51 @ SV39 @ SV11 ) @ SV51 ) )
        = $true )
      | ( ( ~ ( in @ ( sK9_D @ SV51 @ SV39 @ SV11 ) @ SV39 ) )
        = $true )
      | ( ( SV51
          = ( set_union2 @ SV11 @ SV39 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[424]) ).

thf(449,plain,
    ! [SV40: $i,SV11: $i,SV52: $i,SV63: $i] :
      ( ( ( in @ SV63 @ SV52 )
        = $false )
      | ( ( ( in @ SV63 @ SV11 )
          | ( in @ SV63 @ SV40 ) )
        = $true )
      | ( ( SV52
          = ( set_union2 @ SV11 @ SV40 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[425]) ).

thf(450,plain,
    ! [SV40: $i,SV52: $i,SV11: $i] :
      ( ( ( ! [SY908: $i] :
              ( ~ ( in @ SY908 @ SV11 )
              | ( in @ SY908 @ SV52 ) ) )
        = $true )
      | ( ( SV52
          = ( set_union2 @ SV11 @ SV40 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[426]) ).

thf(451,plain,
    ! [SV11: $i,SV52: $i,SV40: $i] :
      ( ( ( ! [SY909: $i] :
              ( ~ ( in @ SY909 @ SV40 )
              | ( in @ SY909 @ SV52 ) ) )
        = $true )
      | ( ( SV52
          = ( set_union2 @ SV11 @ SV40 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[427]) ).

thf(452,plain,
    ! [SV12: $i,SV43: $i,SV53: $i] :
      ( ( ( in @ ( sK7_D @ SV53 @ SV43 @ SV12 ) @ SV43 )
        = $false )
      | ( ( in @ ( sK7_D @ SV53 @ SV43 @ SV12 ) @ SV12 )
        = $false )
      | ( ( ~ ( in @ ( sK7_D @ SV53 @ SV43 @ SV12 ) @ SV53 ) )
        = $true )
      | ( ( SV53
          = ( set_intersection2 @ SV12 @ SV43 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[430]) ).

thf(453,plain,
    ! [SV12: $i,SV43: $i,SV53: $i] :
      ( ( ( in @ ( sK7_D @ SV53 @ SV43 @ SV12 ) @ SV12 )
        = $true )
      | ( ( in @ ( sK7_D @ SV53 @ SV43 @ SV12 ) @ SV53 )
        = $true )
      | ( ( SV53
          = ( set_intersection2 @ SV12 @ SV43 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[431]) ).

thf(454,plain,
    ! [SV12: $i,SV43: $i,SV53: $i] :
      ( ( ( in @ ( sK7_D @ SV53 @ SV43 @ SV12 ) @ SV43 )
        = $true )
      | ( ( in @ ( sK7_D @ SV53 @ SV43 @ SV12 ) @ SV53 )
        = $true )
      | ( ( SV53
          = ( set_intersection2 @ SV12 @ SV43 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[432]) ).

thf(455,plain,
    ! [SV54: $i,SV44: $i,SV12: $i,SV64: $i] :
      ( ( ( ~ ( in @ SV64 @ SV12 ) )
        = $true )
      | ( ( ~ ( in @ SV64 @ SV44 ) )
        = $true )
      | ( ( in @ SV64 @ SV54 )
        = $true )
      | ( ( SV54
          = ( set_intersection2 @ SV12 @ SV44 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[433]) ).

thf(456,plain,
    ! [SV44: $i,SV12: $i,SV54: $i] :
      ( ( ( ! [SY911: $i] :
              ( ~ ( in @ SY911 @ SV54 )
              | ( in @ SY911 @ SV12 ) ) )
        = $true )
      | ( ( SV54
          = ( set_intersection2 @ SV12 @ SV44 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[434]) ).

thf(457,plain,
    ! [SV12: $i,SV44: $i,SV54: $i] :
      ( ( ( ! [SY912: $i] :
              ( ~ ( in @ SY912 @ SV54 )
              | ( in @ SY912 @ SV44 ) ) )
        = $true )
      | ( ( SV54
          = ( set_intersection2 @ SV12 @ SV44 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[435]) ).

thf(458,plain,
    ! [SV13: $i,SV47: $i,SV55: $i] :
      ( ( ( ~ ( in @ ( sK13_D @ SV55 @ SV47 @ SV13 ) @ SV55 ) )
        = $true )
      | ( ( ( ( sK13_D @ SV55 @ SV47 @ SV13 )
           != SV13 ) )
        = $true )
      | ( ( SV55
          = ( unordered_pair @ SV13 @ SV47 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[436]) ).

thf(459,plain,
    ! [SV13: $i,SV47: $i,SV55: $i] :
      ( ( ( ~ ( in @ ( sK13_D @ SV55 @ SV47 @ SV13 ) @ SV55 ) )
        = $true )
      | ( ( ( ( sK13_D @ SV55 @ SV47 @ SV13 )
           != SV47 ) )
        = $true )
      | ( ( SV55
          = ( unordered_pair @ SV13 @ SV47 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[437]) ).

thf(460,plain,
    ! [SV48: $i,SV13: $i,SV56: $i,SV65: $i] :
      ( ( ( in @ SV65 @ SV56 )
        = $false )
      | ( ( ( SV65 = SV13 )
          | ( SV65 = SV48 ) )
        = $true )
      | ( ( SV56
          = ( unordered_pair @ SV13 @ SV48 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[438]) ).

thf(461,plain,
    ! [SV48: $i,SV56: $i,SV13: $i] :
      ( ( ( ! [SY914: $i] :
              ( ( SY914 != SV13 )
              | ( in @ SY914 @ SV56 ) ) )
        = $true )
      | ( ( SV56
          = ( unordered_pair @ SV13 @ SV48 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[439]) ).

thf(462,plain,
    ! [SV13: $i,SV56: $i,SV48: $i] :
      ( ( ( ! [SY915: $i] :
              ( ( SY915 != SV48 )
              | ( in @ SY915 @ SV56 ) ) )
        = $true )
      | ( ( SV56
          = ( unordered_pair @ SV13 @ SV48 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[440]) ).

thf(463,plain,
    ! [SV9: $i,SV35: $i,SV49: $i] :
      ( ( ( in @ ( sK6_D @ SV49 @ SV35 @ SV9 ) @ SV35 )
        = $false )
      | ( ( in @ ( sK6_D @ SV49 @ SV35 @ SV9 ) @ SV49 )
        = $true )
      | ( ( SV49
          = ( set_difference @ SV9 @ SV35 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[443]) ).

thf(464,plain,
    ! [SV50: $i,SV36: $i,SV9: $i,SV62: $i] :
      ( ( ( in @ SV62 @ SV9 )
        = $false )
      | ( ( in @ SV62 @ SV36 )
        = $true )
      | ( ( in @ SV62 @ SV50 )
        = $true )
      | ( ( SV50
          = ( set_difference @ SV9 @ SV36 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[444]) ).

thf(465,plain,
    ! [SV36: $i,SV9: $i,SV50: $i,SV66: $i] :
      ( ( ( ~ ( in @ SV66 @ SV50 )
          | ( in @ SV66 @ SV9 ) )
        = $true )
      | ( ( SV50
          = ( set_difference @ SV9 @ SV36 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[445]) ).

thf(466,plain,
    ! [SV9: $i,SV36: $i,SV50: $i,SV67: $i] :
      ( ( ( ~ ( in @ SV67 @ SV50 )
          | ~ ( in @ SV67 @ SV36 ) )
        = $true )
      | ( ( SV50
          = ( set_difference @ SV9 @ SV36 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[446]) ).

thf(467,plain,
    ! [SV11: $i,SV39: $i,SV51: $i] :
      ( ( ( in @ ( sK9_D @ SV51 @ SV39 @ SV11 ) @ SV51 )
        = $false )
      | ( ( ~ ( in @ ( sK9_D @ SV51 @ SV39 @ SV11 ) @ SV11 ) )
        = $true )
      | ( ( SV51
          = ( set_union2 @ SV11 @ SV39 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[447]) ).

thf(468,plain,
    ! [SV11: $i,SV39: $i,SV51: $i] :
      ( ( ( in @ ( sK9_D @ SV51 @ SV39 @ SV11 ) @ SV51 )
        = $false )
      | ( ( ~ ( in @ ( sK9_D @ SV51 @ SV39 @ SV11 ) @ SV39 ) )
        = $true )
      | ( ( SV51
          = ( set_union2 @ SV11 @ SV39 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[448]) ).

thf(469,plain,
    ! [SV52: $i,SV40: $i,SV11: $i,SV63: $i] :
      ( ( ( in @ SV63 @ SV11 )
        = $true )
      | ( ( in @ SV63 @ SV40 )
        = $true )
      | ( ( in @ SV63 @ SV52 )
        = $false )
      | ( ( SV52
          = ( set_union2 @ SV11 @ SV40 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[449]) ).

thf(470,plain,
    ! [SV40: $i,SV52: $i,SV11: $i,SV68: $i] :
      ( ( ( ~ ( in @ SV68 @ SV11 )
          | ( in @ SV68 @ SV52 ) )
        = $true )
      | ( ( SV52
          = ( set_union2 @ SV11 @ SV40 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[450]) ).

thf(471,plain,
    ! [SV11: $i,SV52: $i,SV40: $i,SV69: $i] :
      ( ( ( ~ ( in @ SV69 @ SV40 )
          | ( in @ SV69 @ SV52 ) )
        = $true )
      | ( ( SV52
          = ( set_union2 @ SV11 @ SV40 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[451]) ).

thf(472,plain,
    ! [SV12: $i,SV43: $i,SV53: $i] :
      ( ( ( in @ ( sK7_D @ SV53 @ SV43 @ SV12 ) @ SV53 )
        = $false )
      | ( ( in @ ( sK7_D @ SV53 @ SV43 @ SV12 ) @ SV12 )
        = $false )
      | ( ( in @ ( sK7_D @ SV53 @ SV43 @ SV12 ) @ SV43 )
        = $false )
      | ( ( SV53
          = ( set_intersection2 @ SV12 @ SV43 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[452]) ).

thf(473,plain,
    ! [SV54: $i,SV44: $i,SV12: $i,SV64: $i] :
      ( ( ( in @ SV64 @ SV12 )
        = $false )
      | ( ( ~ ( in @ SV64 @ SV44 ) )
        = $true )
      | ( ( in @ SV64 @ SV54 )
        = $true )
      | ( ( SV54
          = ( set_intersection2 @ SV12 @ SV44 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[455]) ).

thf(474,plain,
    ! [SV44: $i,SV12: $i,SV54: $i,SV70: $i] :
      ( ( ( ~ ( in @ SV70 @ SV54 )
          | ( in @ SV70 @ SV12 ) )
        = $true )
      | ( ( SV54
          = ( set_intersection2 @ SV12 @ SV44 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[456]) ).

thf(475,plain,
    ! [SV12: $i,SV44: $i,SV54: $i,SV71: $i] :
      ( ( ( ~ ( in @ SV71 @ SV54 )
          | ( in @ SV71 @ SV44 ) )
        = $true )
      | ( ( SV54
          = ( set_intersection2 @ SV12 @ SV44 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[457]) ).

thf(476,plain,
    ! [SV13: $i,SV47: $i,SV55: $i] :
      ( ( ( in @ ( sK13_D @ SV55 @ SV47 @ SV13 ) @ SV55 )
        = $false )
      | ( ( ( ( sK13_D @ SV55 @ SV47 @ SV13 )
           != SV13 ) )
        = $true )
      | ( ( SV55
          = ( unordered_pair @ SV13 @ SV47 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[458]) ).

thf(477,plain,
    ! [SV13: $i,SV47: $i,SV55: $i] :
      ( ( ( in @ ( sK13_D @ SV55 @ SV47 @ SV13 ) @ SV55 )
        = $false )
      | ( ( ( ( sK13_D @ SV55 @ SV47 @ SV13 )
           != SV47 ) )
        = $true )
      | ( ( SV55
          = ( unordered_pair @ SV13 @ SV47 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[459]) ).

thf(478,plain,
    ! [SV56: $i,SV48: $i,SV13: $i,SV65: $i] :
      ( ( ( SV65 = SV13 )
        = $true )
      | ( ( SV65 = SV48 )
        = $true )
      | ( ( in @ SV65 @ SV56 )
        = $false )
      | ( ( SV56
          = ( unordered_pair @ SV13 @ SV48 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[460]) ).

thf(479,plain,
    ! [SV48: $i,SV56: $i,SV13: $i,SV72: $i] :
      ( ( ( ( SV72 != SV13 )
          | ( in @ SV72 @ SV56 ) )
        = $true )
      | ( ( SV56
          = ( unordered_pair @ SV13 @ SV48 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[461]) ).

thf(480,plain,
    ! [SV13: $i,SV56: $i,SV48: $i,SV73: $i] :
      ( ( ( ( SV73 != SV48 )
          | ( in @ SV73 @ SV56 ) )
        = $true )
      | ( ( SV56
          = ( unordered_pair @ SV13 @ SV48 ) )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[462]) ).

thf(481,plain,
    ! [SV36: $i,SV9: $i,SV50: $i,SV66: $i] :
      ( ( ( ~ ( in @ SV66 @ SV50 ) )
        = $true )
      | ( ( in @ SV66 @ SV9 )
        = $true )
      | ( ( SV50
          = ( set_difference @ SV9 @ SV36 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[465]) ).

thf(482,plain,
    ! [SV9: $i,SV36: $i,SV50: $i,SV67: $i] :
      ( ( ( ~ ( in @ SV67 @ SV50 ) )
        = $true )
      | ( ( ~ ( in @ SV67 @ SV36 ) )
        = $true )
      | ( ( SV50
          = ( set_difference @ SV9 @ SV36 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[466]) ).

thf(483,plain,
    ! [SV11: $i,SV39: $i,SV51: $i] :
      ( ( ( in @ ( sK9_D @ SV51 @ SV39 @ SV11 ) @ SV11 )
        = $false )
      | ( ( in @ ( sK9_D @ SV51 @ SV39 @ SV11 ) @ SV51 )
        = $false )
      | ( ( SV51
          = ( set_union2 @ SV11 @ SV39 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[467]) ).

thf(484,plain,
    ! [SV11: $i,SV39: $i,SV51: $i] :
      ( ( ( in @ ( sK9_D @ SV51 @ SV39 @ SV11 ) @ SV39 )
        = $false )
      | ( ( in @ ( sK9_D @ SV51 @ SV39 @ SV11 ) @ SV51 )
        = $false )
      | ( ( SV51
          = ( set_union2 @ SV11 @ SV39 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[468]) ).

thf(485,plain,
    ! [SV40: $i,SV52: $i,SV11: $i,SV68: $i] :
      ( ( ( ~ ( in @ SV68 @ SV11 ) )
        = $true )
      | ( ( in @ SV68 @ SV52 )
        = $true )
      | ( ( SV52
          = ( set_union2 @ SV11 @ SV40 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[470]) ).

thf(486,plain,
    ! [SV11: $i,SV52: $i,SV40: $i,SV69: $i] :
      ( ( ( ~ ( in @ SV69 @ SV40 ) )
        = $true )
      | ( ( in @ SV69 @ SV52 )
        = $true )
      | ( ( SV52
          = ( set_union2 @ SV11 @ SV40 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[471]) ).

thf(487,plain,
    ! [SV54: $i,SV12: $i,SV44: $i,SV64: $i] :
      ( ( ( in @ SV64 @ SV44 )
        = $false )
      | ( ( in @ SV64 @ SV12 )
        = $false )
      | ( ( in @ SV64 @ SV54 )
        = $true )
      | ( ( SV54
          = ( set_intersection2 @ SV12 @ SV44 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[473]) ).

thf(488,plain,
    ! [SV44: $i,SV12: $i,SV54: $i,SV70: $i] :
      ( ( ( ~ ( in @ SV70 @ SV54 ) )
        = $true )
      | ( ( in @ SV70 @ SV12 )
        = $true )
      | ( ( SV54
          = ( set_intersection2 @ SV12 @ SV44 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[474]) ).

thf(489,plain,
    ! [SV12: $i,SV44: $i,SV54: $i,SV71: $i] :
      ( ( ( ~ ( in @ SV71 @ SV54 ) )
        = $true )
      | ( ( in @ SV71 @ SV44 )
        = $true )
      | ( ( SV54
          = ( set_intersection2 @ SV12 @ SV44 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[475]) ).

thf(490,plain,
    ! [SV13: $i,SV47: $i,SV55: $i] :
      ( ( ( ( sK13_D @ SV55 @ SV47 @ SV13 )
          = SV13 )
        = $false )
      | ( ( in @ ( sK13_D @ SV55 @ SV47 @ SV13 ) @ SV55 )
        = $false )
      | ( ( SV55
          = ( unordered_pair @ SV13 @ SV47 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[476]) ).

thf(491,plain,
    ! [SV13: $i,SV47: $i,SV55: $i] :
      ( ( ( ( sK13_D @ SV55 @ SV47 @ SV13 )
          = SV47 )
        = $false )
      | ( ( in @ ( sK13_D @ SV55 @ SV47 @ SV13 ) @ SV55 )
        = $false )
      | ( ( SV55
          = ( unordered_pair @ SV13 @ SV47 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[477]) ).

thf(492,plain,
    ! [SV48: $i,SV56: $i,SV13: $i,SV72: $i] :
      ( ( ( ( SV72 != SV13 ) )
        = $true )
      | ( ( in @ SV72 @ SV56 )
        = $true )
      | ( ( SV56
          = ( unordered_pair @ SV13 @ SV48 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[479]) ).

thf(493,plain,
    ! [SV13: $i,SV56: $i,SV48: $i,SV73: $i] :
      ( ( ( ( SV73 != SV48 ) )
        = $true )
      | ( ( in @ SV73 @ SV56 )
        = $true )
      | ( ( SV56
          = ( unordered_pair @ SV13 @ SV48 ) )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[480]) ).

thf(494,plain,
    ! [SV36: $i,SV9: $i,SV50: $i,SV66: $i] :
      ( ( ( in @ SV66 @ SV50 )
        = $false )
      | ( ( in @ SV66 @ SV9 )
        = $true )
      | ( ( SV50
          = ( set_difference @ SV9 @ SV36 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[481]) ).

thf(495,plain,
    ! [SV9: $i,SV36: $i,SV50: $i,SV67: $i] :
      ( ( ( in @ SV67 @ SV50 )
        = $false )
      | ( ( ~ ( in @ SV67 @ SV36 ) )
        = $true )
      | ( ( SV50
          = ( set_difference @ SV9 @ SV36 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[482]) ).

thf(496,plain,
    ! [SV40: $i,SV52: $i,SV11: $i,SV68: $i] :
      ( ( ( in @ SV68 @ SV11 )
        = $false )
      | ( ( in @ SV68 @ SV52 )
        = $true )
      | ( ( SV52
          = ( set_union2 @ SV11 @ SV40 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[485]) ).

thf(497,plain,
    ! [SV11: $i,SV52: $i,SV40: $i,SV69: $i] :
      ( ( ( in @ SV69 @ SV40 )
        = $false )
      | ( ( in @ SV69 @ SV52 )
        = $true )
      | ( ( SV52
          = ( set_union2 @ SV11 @ SV40 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[486]) ).

thf(498,plain,
    ! [SV44: $i,SV12: $i,SV54: $i,SV70: $i] :
      ( ( ( in @ SV70 @ SV54 )
        = $false )
      | ( ( in @ SV70 @ SV12 )
        = $true )
      | ( ( SV54
          = ( set_intersection2 @ SV12 @ SV44 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[488]) ).

thf(499,plain,
    ! [SV12: $i,SV44: $i,SV54: $i,SV71: $i] :
      ( ( ( in @ SV71 @ SV54 )
        = $false )
      | ( ( in @ SV71 @ SV44 )
        = $true )
      | ( ( SV54
          = ( set_intersection2 @ SV12 @ SV44 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[489]) ).

thf(500,plain,
    ! [SV48: $i,SV56: $i,SV13: $i,SV72: $i] :
      ( ( ( SV72 = SV13 )
        = $false )
      | ( ( in @ SV72 @ SV56 )
        = $true )
      | ( ( SV56
          = ( unordered_pair @ SV13 @ SV48 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[492]) ).

thf(501,plain,
    ! [SV13: $i,SV56: $i,SV48: $i,SV73: $i] :
      ( ( ( SV73 = SV48 )
        = $false )
      | ( ( in @ SV73 @ SV56 )
        = $true )
      | ( ( SV56
          = ( unordered_pair @ SV13 @ SV48 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[493]) ).

thf(502,plain,
    ! [SV9: $i,SV50: $i,SV36: $i,SV67: $i] :
      ( ( ( in @ SV67 @ SV36 )
        = $false )
      | ( ( in @ SV67 @ SV50 )
        = $false )
      | ( ( SV50
          = ( set_difference @ SV9 @ SV36 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[495]) ).

thf(503,plain,
    $false = $true,
    inference(fo_atp_e,[status(thm)],[147,502,501,500,499,498,497,496,494,491,490,487,484,483,478,472,469,464,463,454,453,442,441,429,428,414,404,401,389,362,356,355,346,345,332,331,311,302,295,290,289,282,250,245,244,243,242,234,218,169,168]) ).

thf(504,plain,
    $false,
    inference(solved_all_splits,[solved_all_splits(join,[])],[503]) ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.04/0.13  % Problem  : SEU151+2 : TPTP v8.1.0. Released v3.3.0.
% 0.04/0.14  % Command  : leo --timeout %d --proofoutput 1 --foatp e --atp e=./eprover %s
% 0.14/0.36  % Computer : n016.cluster.edu
% 0.14/0.36  % Model    : x86_64 x86_64
% 0.14/0.36  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.14/0.36  % Memory   : 8042.1875MB
% 0.14/0.36  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.14/0.36  % CPULimit : 300
% 0.14/0.36  % WCLimit  : 600
% 0.14/0.36  % DateTime : Sun Jun 19 15:01:09 EDT 2022
% 0.14/0.36  % CPUTime  : 
% 0.21/0.38  .
% 0.21/0.40  
% 0.21/0.40   No.of.Axioms: 73
% 0.21/0.40  
% 0.21/0.40   Length.of.Defs: 0
% 0.21/0.40  
% 0.21/0.40   Contains.Choice.Funs: false
% 0.21/0.41  ..
% 0.21/0.44  (rf:0,axioms:73,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:75,loop_count:0,foatp_calls:0,translation:fof_full)..............................................................eprover: CPU time limit exceeded, terminating
% 74.60/74.79  .........
% 75.13/75.32  (rf:0,axioms:73,ps:2,u:1,ude:false,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:75,loop_count:0,foatp_calls:0,translation:fof_full)...........................................................eprover: CPU time limit exceeded, terminating
% 149.36/149.63  .........
% 150.06/150.32  (rf:0,axioms:73,ps:3,u:8,ude:true,rLeibEQ:true,rAndEQ:true,use_choice:true,use_extuni:false,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:75,loop_count:0,foatp_calls:0,translation:fof_full).............................................................eprover: CPU time limit exceeded, terminating
% 224.35/224.71  ...........
% 224.89/225.29  (rf:2,axioms:18,ps:1,u:3,ude:true,rLeibEQ:false,rAndEQ:false,use_choice:false,use_extuni:false,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:75,loop_count:0,foatp_calls:0,translation:fof_full)..................................
% 225.50/225.88  
% 225.50/225.88  ********************************
% 225.50/225.88  *   All subproblems solved!    *
% 225.50/225.88  ********************************
% 225.50/225.88  % SZS status Theorem for /export/starexec/sandbox2/benchmark/theBenchmark.p : (rf:2,axioms:18,ps:1,u:3,ude:true,rLeibEQ:false,rAndEQ:false,use_choice:false,use_extuni:false,use_extcnf_combined:true,expand_extuni:false,foatp:e,atp_timeout:74,atp_calls_frequency:10,ordering:none,proof_output:1,protocol_output:false,clause_count:503,loop_count:0,foatp_calls:1,translation:fof_full)
% 225.61/225.99  
% 225.61/225.99  %**** Beginning of derivation protocol ****
% 225.61/225.99  % SZS output start CNFRefutation
% See solution above
% 225.61/226.00  
% 225.61/226.00  %**** End of derivation protocol ****
% 225.61/226.00  %**** no. of clauses in derivation: 449 ****
% 225.61/226.00  %**** clause counter: 503 ****
% 225.61/226.00  
% 225.61/226.00  % SZS status Theorem for /export/starexec/sandbox2/benchmark/theBenchmark.p : (rf:2,axioms:18,ps:1,u:3,ude:true,rLeibEQ:false,rAndEQ:false,use_choice:false,use_extuni:false,use_extcnf_combined:true,expand_extuni:false,foatp:e,atp_timeout:74,atp_calls_frequency:10,ordering:none,proof_output:1,protocol_output:false,clause_count:503,loop_count:0,foatp_calls:1,translation:fof_full)
%------------------------------------------------------------------------------