TSTP Solution File: SET980+1 by LEO-II---1.7.0

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : LEO-II---1.7.0
% Problem  : SET980+1 : TPTP v8.1.0. Bugfixed v4.0.0.
% Transfm  : none
% Format   : tptp
% Command  : leo --timeout %d --proofoutput 1 --foatp e --atp e=./eprover %s

% Computer : n015.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 03:06:42 EDT 2022

% Result   : Theorem 1.37s 1.53s
% Output   : CNFRefutation 1.37s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :   20
%            Number of leaves      :   27
% Syntax   : Number of formulae    :  176 ( 117 unt;  15 typ;   0 def)
%            Number of atoms       :  825 ( 416 equ;   0 cnn)
%            Maximal formula atoms :    5 (   5 avg)
%            Number of connectives : 1431 ( 286   ~; 230   |;  27   &; 869   @)
%                                         (   8 <=>;  11  =>;   0  <=;   0 <~>)
%            Maximal formula depth :   10 (   3 avg)
%            Number of types       :    2 (   0 usr)
%            Number of type conns  :   13 (  13   >;   0   *;   0   +;   0  <<)
%            Number of symbols     :   18 (  15 usr;   9 con; 0-2 aty)
%            Number of variables   :  374 (   0   ^ 370   !;   4   ?; 374   :)

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

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

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

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

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

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

thf(tp_sK2_SY25,type,
    sK2_SY25: $i ).

thf(tp_sK3_SY28,type,
    sK3_SY28: $i ).

thf(tp_sK4_SY30,type,
    sK4_SY30: $i ).

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

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

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

thf(tp_sK8_B,type,
    sK8_B: $i > $i ).

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

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

thf(1,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(2,axiom,
    ! [A: $i,B: $i] :
      ( ( ( cartesian_product2 @ A @ B )
        = empty_set )
    <=> ( ( A = empty_set )
        | ( B = empty_set ) ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',t113_zfmisc_1) ).

thf(3,axiom,
    ? [A: $i] :
      ~ ( empty @ A ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',rc2_xboole_0) ).

thf(4,axiom,
    ? [A: $i] : ( empty @ A ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',rc1_xboole_0) ).

thf(5,axiom,
    ! [A: $i,B: $i,C: $i,D: $i] :
      ( ( in @ ( ordered_pair @ A @ B ) @ ( cartesian_product2 @ C @ D ) )
    <=> ( ( in @ A @ C )
        & ( in @ B @ D ) ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',l55_zfmisc_1) ).

thf(6,axiom,
    ! [A: $i,B: $i] :
      ~ ( empty @ ( ordered_pair @ A @ B ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',fc1_zfmisc_1) ).

thf(7,axiom,
    empty @ empty_set,
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',fc1_xboole_0) ).

thf(8,axiom,
    ! [A: $i,B: $i] :
      ( ( ordered_pair @ A @ B )
      = ( unordered_pair @ ( unordered_pair @ A @ B ) @ ( singleton @ A ) ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',d5_tarski) ).

thf(9,axiom,
    ! [A: $i] :
      ( ( A = empty_set )
    <=> ! [B: $i] :
          ~ ( in @ B @ A ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',d1_xboole_0) ).

thf(10,axiom,
    ! [A: $i,B: $i] :
      ( ( unordered_pair @ A @ B )
      = ( unordered_pair @ B @ A ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',commutativity_k2_tarski) ).

thf(11,axiom,
    ! [A: $i,B: $i] :
      ( ( in @ A @ B )
     => ~ ( in @ B @ A ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',antisymmetry_r2_hidden) ).

thf(12,conjecture,
    ! [A: $i,B: $i,C: $i,D: $i] :
      ( ( ( cartesian_product2 @ A @ B )
        = ( cartesian_product2 @ C @ D ) )
     => ( ( A = empty_set )
        | ( B = empty_set )
        | ( ( A = C )
          & ( B = D ) ) ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',t134_zfmisc_1) ).

thf(13,negated_conjecture,
    ( ( ! [A: $i,B: $i,C: $i,D: $i] :
          ( ( ( cartesian_product2 @ A @ B )
            = ( cartesian_product2 @ C @ D ) )
         => ( ( A = empty_set )
            | ( B = empty_set )
            | ( ( A = C )
              & ( B = D ) ) ) ) )
    = $false ),
    inference(negate_conjecture,[status(cth)],[12]) ).

thf(14,plain,
    ( ( ! [A: $i,B: $i,C: $i,D: $i] :
          ( ( ( cartesian_product2 @ A @ B )
            = ( cartesian_product2 @ C @ D ) )
         => ( ( A = empty_set )
            | ( B = empty_set )
            | ( ( A = C )
              & ( B = D ) ) ) ) )
    = $false ),
    inference(unfold_def,[status(thm)],[13]) ).

thf(15,plain,
    ( ( ! [A: $i,B: $i] :
          ( ! [C: $i] :
              ( ( in @ C @ A )
            <=> ( in @ C @ B ) )
         => ( A = B ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[1]) ).

thf(16,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( ( cartesian_product2 @ A @ B )
            = empty_set )
        <=> ( ( A = empty_set )
            | ( B = empty_set ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[2]) ).

thf(17,plain,
    ( ( ? [A: $i] :
          ~ ( empty @ A ) )
    = $true ),
    inference(unfold_def,[status(thm)],[3]) ).

thf(18,plain,
    ( ( ? [A: $i] : ( empty @ A ) )
    = $true ),
    inference(unfold_def,[status(thm)],[4]) ).

thf(19,plain,
    ( ( ! [A: $i,B: $i,C: $i,D: $i] :
          ( ( in @ ( ordered_pair @ A @ B ) @ ( cartesian_product2 @ C @ D ) )
        <=> ( ( in @ A @ C )
            & ( in @ B @ D ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[5]) ).

thf(20,plain,
    ( ( ! [A: $i,B: $i] :
          ~ ( empty @ ( ordered_pair @ A @ B ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[6]) ).

thf(21,plain,
    ( ( empty @ empty_set )
    = $true ),
    inference(unfold_def,[status(thm)],[7]) ).

thf(22,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( ordered_pair @ A @ B )
          = ( unordered_pair @ ( unordered_pair @ A @ B ) @ ( singleton @ A ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[8]) ).

thf(23,plain,
    ( ( ! [A: $i] :
          ( ( A = empty_set )
        <=> ! [B: $i] :
              ~ ( in @ B @ A ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[9]) ).

thf(24,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( unordered_pair @ A @ B )
          = ( unordered_pair @ B @ A ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[10]) ).

thf(25,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( in @ A @ B )
         => ~ ( in @ B @ A ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[11]) ).

thf(26,plain,
    ( ( ! [SY25: $i,SY26: $i,SY27: $i] :
          ( ( ( cartesian_product2 @ sK1_A @ SY25 )
            = ( cartesian_product2 @ SY26 @ SY27 ) )
         => ( ( sK1_A = empty_set )
            | ( SY25 = empty_set )
            | ( ( sK1_A = SY26 )
              & ( SY25 = SY27 ) ) ) ) )
    = $false ),
    inference(extcnf_forall_neg,[status(esa)],[14]) ).

thf(27,plain,
    ( ( ! [SY28: $i,SY29: $i] :
          ( ( ( cartesian_product2 @ sK1_A @ sK2_SY25 )
            = ( cartesian_product2 @ SY28 @ SY29 ) )
         => ( ( sK1_A = empty_set )
            | ( sK2_SY25 = empty_set )
            | ( ( sK1_A = SY28 )
              & ( sK2_SY25 = SY29 ) ) ) ) )
    = $false ),
    inference(extcnf_forall_neg,[status(esa)],[26]) ).

thf(28,plain,
    ( ( ! [SY30: $i] :
          ( ( ( cartesian_product2 @ sK1_A @ sK2_SY25 )
            = ( cartesian_product2 @ sK3_SY28 @ SY30 ) )
         => ( ( sK1_A = empty_set )
            | ( sK2_SY25 = empty_set )
            | ( ( sK1_A = sK3_SY28 )
              & ( sK2_SY25 = SY30 ) ) ) ) )
    = $false ),
    inference(extcnf_forall_neg,[status(esa)],[27]) ).

thf(29,plain,
    ( ( ( ( cartesian_product2 @ sK1_A @ sK2_SY25 )
        = ( cartesian_product2 @ sK3_SY28 @ sK4_SY30 ) )
     => ( ( sK1_A = empty_set )
        | ( sK2_SY25 = empty_set )
        | ( ( sK1_A = sK3_SY28 )
          & ( sK2_SY25 = sK4_SY30 ) ) ) )
    = $false ),
    inference(extcnf_forall_neg,[status(esa)],[28]) ).

thf(30,plain,
    ( ( ( cartesian_product2 @ sK1_A @ sK2_SY25 )
      = ( cartesian_product2 @ sK3_SY28 @ sK4_SY30 ) )
    = $true ),
    inference(standard_cnf,[status(thm)],[29]) ).

thf(31,plain,
    ( ( ( sK1_A = empty_set )
      | ( sK2_SY25 = empty_set )
      | ( ( sK1_A = sK3_SY28 )
        & ( sK2_SY25 = sK4_SY30 ) ) )
    = $false ),
    inference(standard_cnf,[status(thm)],[29]) ).

thf(32,plain,
    ( ( ~ ( ( sK1_A = empty_set )
          | ( sK2_SY25 = empty_set )
          | ( ( sK1_A = sK3_SY28 )
            & ( sK2_SY25 = sK4_SY30 ) ) ) )
    = $true ),
    inference(polarity_switch,[status(thm)],[31]) ).

thf(33,plain,
    ( ( ( ( sK1_A != sK3_SY28 )
        | ( sK2_SY25 != sK4_SY30 ) )
      & ( sK1_A != empty_set )
      & ( sK2_SY25 != empty_set ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[32]) ).

thf(34,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)],[15]) ).

thf(35,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( ( cartesian_product2 @ A @ B )
           != empty_set )
          | ( A = empty_set )
          | ( B = empty_set ) )
      & ! [A: $i] :
          ( ( A != empty_set )
          | ! [B: $i] :
              ( ( cartesian_product2 @ A @ B )
              = empty_set ) )
      & ! [A: $i,B: $i] :
          ( ( B != empty_set )
          | ( ( cartesian_product2 @ A @ B )
            = empty_set ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[16]) ).

thf(36,plain,
    ( ( ~ ( empty @ sK6_A ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[17]) ).

thf(37,plain,
    ( ( empty @ sK7_A )
    = $true ),
    inference(extcnf_combined,[status(esa)],[18]) ).

thf(38,plain,
    ( ( ! [A: $i,B: $i] :
          ( ! [C: $i,D: $i] :
              ( ~ ( in @ A @ C )
              | ~ ( in @ B @ D )
              | ( in @ ( ordered_pair @ A @ B ) @ ( cartesian_product2 @ C @ D ) ) )
          & ! [C: $i] :
              ( ! [D: $i] :
                  ~ ( in @ ( ordered_pair @ A @ B ) @ ( cartesian_product2 @ C @ D ) )
              | ( in @ A @ C ) )
          & ! [C: $i,D: $i] :
              ( ~ ( in @ ( ordered_pair @ A @ B ) @ ( cartesian_product2 @ C @ D ) )
              | ( in @ B @ D ) ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[19]) ).

thf(39,plain,
    ( ( ! [A: $i] :
          ( ( in @ ( sK8_B @ A ) @ A )
          | ( A = empty_set ) )
      & ! [A: $i] :
          ( ( A != empty_set )
          | ! [B: $i] :
              ~ ( in @ B @ A ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[23]) ).

thf(40,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( in @ A @ B )
          | ~ ( in @ B @ A ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[25]) ).

thf(41,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( in @ A @ B )
          | ~ ( in @ B @ A ) ) )
    = $true ),
    inference(copy,[status(thm)],[40]) ).

thf(42,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( unordered_pair @ A @ B )
          = ( unordered_pair @ B @ A ) ) )
    = $true ),
    inference(copy,[status(thm)],[24]) ).

thf(43,plain,
    ( ( ! [A: $i] :
          ( ( in @ ( sK8_B @ A ) @ A )
          | ( A = empty_set ) )
      & ! [A: $i] :
          ( ( A != empty_set )
          | ! [B: $i] :
              ~ ( in @ B @ A ) ) )
    = $true ),
    inference(copy,[status(thm)],[39]) ).

thf(44,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( ordered_pair @ A @ B )
          = ( unordered_pair @ ( unordered_pair @ A @ B ) @ ( singleton @ A ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[22]) ).

thf(45,plain,
    ( ( empty @ empty_set )
    = $true ),
    inference(copy,[status(thm)],[21]) ).

thf(46,plain,
    ( ( ! [A: $i,B: $i] :
          ~ ( empty @ ( ordered_pair @ A @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[20]) ).

thf(47,plain,
    ( ( ! [A: $i,B: $i] :
          ( ! [C: $i,D: $i] :
              ( ~ ( in @ A @ C )
              | ~ ( in @ B @ D )
              | ( in @ ( ordered_pair @ A @ B ) @ ( cartesian_product2 @ C @ D ) ) )
          & ! [C: $i] :
              ( ! [D: $i] :
                  ~ ( in @ ( ordered_pair @ A @ B ) @ ( cartesian_product2 @ C @ D ) )
              | ( in @ A @ C ) )
          & ! [C: $i,D: $i] :
              ( ~ ( in @ ( ordered_pair @ A @ B ) @ ( cartesian_product2 @ C @ D ) )
              | ( in @ B @ D ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[38]) ).

thf(48,plain,
    ( ( empty @ sK7_A )
    = $true ),
    inference(copy,[status(thm)],[37]) ).

thf(49,plain,
    ( ( ~ ( empty @ sK6_A ) )
    = $true ),
    inference(copy,[status(thm)],[36]) ).

thf(50,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( ( cartesian_product2 @ A @ B )
           != empty_set )
          | ( A = empty_set )
          | ( B = empty_set ) )
      & ! [A: $i] :
          ( ( A != empty_set )
          | ! [B: $i] :
              ( ( cartesian_product2 @ A @ B )
              = empty_set ) )
      & ! [A: $i,B: $i] :
          ( ( B != empty_set )
          | ( ( cartesian_product2 @ A @ B )
            = empty_set ) ) )
    = $true ),
    inference(copy,[status(thm)],[35]) ).

thf(51,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)],[34]) ).

thf(52,plain,
    ( ( ( cartesian_product2 @ sK1_A @ sK2_SY25 )
      = ( cartesian_product2 @ sK3_SY28 @ sK4_SY30 ) )
    = $true ),
    inference(copy,[status(thm)],[30]) ).

thf(53,plain,
    ( ( ( ( sK1_A != sK3_SY28 )
        | ( sK2_SY25 != sK4_SY30 ) )
      & ( sK1_A != empty_set )
      & ( sK2_SY25 != empty_set ) )
    = $true ),
    inference(copy,[status(thm)],[33]) ).

thf(54,plain,
    ( ( ~ ( ~ ! [SX0: $i] :
                ( ( in @ ( sK8_B @ SX0 ) @ SX0 )
                | ( SX0 = empty_set ) )
          | ~ ! [SX0: $i] :
                ( ( SX0 != empty_set )
                | ! [SX1: $i] :
                    ~ ( in @ SX1 @ SX0 ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[43]) ).

thf(55,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)],[51]) ).

thf(56,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ~ ( ~ ! [SX2: $i,SX3: $i] :
                  ( ~ ( in @ SX0 @ SX2 )
                  | ~ ( in @ SX1 @ SX3 )
                  | ( in @ ( ordered_pair @ SX0 @ SX1 ) @ ( cartesian_product2 @ SX2 @ SX3 ) ) )
            | ~ ~ ( ~ ! [SX2: $i] :
                        ( ! [SX3: $i] :
                            ~ ( in @ ( ordered_pair @ SX0 @ SX1 ) @ ( cartesian_product2 @ SX2 @ SX3 ) )
                        | ( in @ SX0 @ SX2 ) )
                  | ~ ! [SX2: $i,SX3: $i] :
                        ( ~ ( in @ ( ordered_pair @ SX0 @ SX1 ) @ ( cartesian_product2 @ SX2 @ SX3 ) )
                        | ( in @ SX1 @ SX3 ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[47]) ).

thf(57,plain,
    ( ( ~ ( ~ ( ( sK1_A != sK3_SY28 )
              | ( sK2_SY25 != sK4_SY30 ) )
          | ~ ~ ( ~ ( ( sK1_A != empty_set ) )
                | ~ ( ( sK2_SY25 != empty_set ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[53]) ).

thf(58,plain,
    ( ( ~ ( ~ ! [SX0: $i,SX1: $i] :
                ( ( ( cartesian_product2 @ SX0 @ SX1 )
                 != empty_set )
                | ( SX0 = empty_set )
                | ( SX1 = empty_set ) )
          | ~ ~ ( ~ ! [SX0: $i] :
                      ( ( SX0 != empty_set )
                      | ! [SX1: $i] :
                          ( ( cartesian_product2 @ SX0 @ SX1 )
                          = empty_set ) )
                | ~ ! [SX0: $i,SX1: $i] :
                      ( ( SX1 != empty_set )
                      | ( ( cartesian_product2 @ SX0 @ SX1 )
                        = empty_set ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[50]) ).

thf(59,plain,
    ! [SV1: $i] :
      ( ( ! [SY31: $i] :
            ( ~ ( in @ SV1 @ SY31 )
            | ~ ( in @ SY31 @ SV1 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[41]) ).

thf(60,plain,
    ! [SV2: $i] :
      ( ( ! [SY32: $i] :
            ( ( unordered_pair @ SV2 @ SY32 )
            = ( unordered_pair @ SY32 @ SV2 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[42]) ).

thf(61,plain,
    ! [SV3: $i] :
      ( ( ! [SY33: $i] :
            ( ( ordered_pair @ SV3 @ SY33 )
            = ( unordered_pair @ ( unordered_pair @ SV3 @ SY33 ) @ ( singleton @ SV3 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[44]) ).

thf(62,plain,
    ! [SV4: $i] :
      ( ( ! [SY34: $i] :
            ~ ( empty @ ( ordered_pair @ SV4 @ SY34 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[46]) ).

thf(63,plain,
    ( ( empty @ sK6_A )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[49]) ).

thf(64,plain,
    ( ( ~ ! [SX0: $i] :
            ( ( in @ ( sK8_B @ SX0 ) @ SX0 )
            | ( SX0 = empty_set ) )
      | ~ ! [SX0: $i] :
            ( ( SX0 != empty_set )
            | ! [SX1: $i] :
                ~ ( in @ SX1 @ SX0 ) ) )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[54]) ).

thf(65,plain,
    ! [SV5: $i] :
      ( ( ! [SY35: $i] :
            ( ~ ( ~ ( ~ ( in @ ( sK5_C @ SY35 @ SV5 ) @ SV5 )
                    | ~ ( in @ ( sK5_C @ SY35 @ SV5 ) @ SY35 ) )
                | ~ ( ( in @ ( sK5_C @ SY35 @ SV5 ) @ SV5 )
                    | ( in @ ( sK5_C @ SY35 @ SV5 ) @ SY35 ) ) )
            | ( SV5 = SY35 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[55]) ).

thf(66,plain,
    ! [SV6: $i] :
      ( ( ! [SY36: $i] :
            ~ ( ~ ! [SY37: $i,SY38: $i] :
                    ( ~ ( in @ SV6 @ SY37 )
                    | ~ ( in @ SY36 @ SY38 )
                    | ( in @ ( ordered_pair @ SV6 @ SY36 ) @ ( cartesian_product2 @ SY37 @ SY38 ) ) )
              | ~ ~ ( ~ ! [SY39: $i] :
                          ( ! [SY40: $i] :
                              ~ ( in @ ( ordered_pair @ SV6 @ SY36 ) @ ( cartesian_product2 @ SY39 @ SY40 ) )
                          | ( in @ SV6 @ SY39 ) )
                    | ~ ! [SY41: $i,SY42: $i] :
                          ( ~ ( in @ ( ordered_pair @ SV6 @ SY36 ) @ ( cartesian_product2 @ SY41 @ SY42 ) )
                          | ( in @ SY36 @ SY42 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[56]) ).

thf(67,plain,
    ( ( ~ ( ( sK1_A != sK3_SY28 )
          | ( sK2_SY25 != sK4_SY30 ) )
      | ~ ~ ( ~ ( ( sK1_A != empty_set ) )
            | ~ ( ( sK2_SY25 != empty_set ) ) ) )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[57]) ).

thf(68,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( ( cartesian_product2 @ SX0 @ SX1 )
             != empty_set )
            | ( SX0 = empty_set )
            | ( SX1 = empty_set ) )
      | ~ ~ ( ~ ! [SX0: $i] :
                  ( ( SX0 != empty_set )
                  | ! [SX1: $i] :
                      ( ( cartesian_product2 @ SX0 @ SX1 )
                      = empty_set ) )
            | ~ ! [SX0: $i,SX1: $i] :
                  ( ( SX1 != empty_set )
                  | ( ( cartesian_product2 @ SX0 @ SX1 )
                    = empty_set ) ) ) )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[58]) ).

thf(69,plain,
    ! [SV7: $i,SV1: $i] :
      ( ( ~ ( in @ SV1 @ SV7 )
        | ~ ( in @ SV7 @ SV1 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[59]) ).

thf(70,plain,
    ! [SV8: $i,SV2: $i] :
      ( ( ( unordered_pair @ SV2 @ SV8 )
        = ( unordered_pair @ SV8 @ SV2 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[60]) ).

thf(71,plain,
    ! [SV9: $i,SV3: $i] :
      ( ( ( ordered_pair @ SV3 @ SV9 )
        = ( unordered_pair @ ( unordered_pair @ SV3 @ SV9 ) @ ( singleton @ SV3 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[61]) ).

thf(72,plain,
    ! [SV10: $i,SV4: $i] :
      ( ( ~ ( empty @ ( ordered_pair @ SV4 @ SV10 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[62]) ).

thf(73,plain,
    ( ( ~ ! [SX0: $i] :
            ( ( in @ ( sK8_B @ SX0 ) @ SX0 )
            | ( SX0 = empty_set ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[64]) ).

thf(74,plain,
    ( ( ~ ! [SX0: $i] :
            ( ( SX0 != empty_set )
            | ! [SX1: $i] :
                ~ ( in @ SX1 @ SX0 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[64]) ).

thf(75,plain,
    ! [SV5: $i,SV11: $i] :
      ( ( ~ ( ~ ( ~ ( in @ ( sK5_C @ SV11 @ SV5 ) @ SV5 )
                | ~ ( in @ ( sK5_C @ SV11 @ SV5 ) @ SV11 ) )
            | ~ ( ( in @ ( sK5_C @ SV11 @ SV5 ) @ SV5 )
                | ( in @ ( sK5_C @ SV11 @ SV5 ) @ SV11 ) ) )
        | ( SV5 = SV11 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[65]) ).

thf(76,plain,
    ! [SV12: $i,SV6: $i] :
      ( ( ~ ( ~ ! [SY43: $i,SY44: $i] :
                  ( ~ ( in @ SV6 @ SY43 )
                  | ~ ( in @ SV12 @ SY44 )
                  | ( in @ ( ordered_pair @ SV6 @ SV12 ) @ ( cartesian_product2 @ SY43 @ SY44 ) ) )
            | ~ ~ ( ~ ! [SY45: $i] :
                        ( ! [SY46: $i] :
                            ~ ( in @ ( ordered_pair @ SV6 @ SV12 ) @ ( cartesian_product2 @ SY45 @ SY46 ) )
                        | ( in @ SV6 @ SY45 ) )
                  | ~ ! [SY47: $i,SY48: $i] :
                        ( ~ ( in @ ( ordered_pair @ SV6 @ SV12 ) @ ( cartesian_product2 @ SY47 @ SY48 ) )
                        | ( in @ SV12 @ SY48 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[66]) ).

thf(77,plain,
    ( ( ~ ( ( sK1_A != sK3_SY28 )
          | ( sK2_SY25 != sK4_SY30 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[67]) ).

thf(78,plain,
    ( ( ~ ~ ( ~ ( ( sK1_A != empty_set ) )
            | ~ ( ( sK2_SY25 != empty_set ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[67]) ).

thf(79,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( ( cartesian_product2 @ SX0 @ SX1 )
             != empty_set )
            | ( SX0 = empty_set )
            | ( SX1 = empty_set ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[68]) ).

thf(80,plain,
    ( ( ~ ~ ( ~ ! [SX0: $i] :
                  ( ( SX0 != empty_set )
                  | ! [SX1: $i] :
                      ( ( cartesian_product2 @ SX0 @ SX1 )
                      = empty_set ) )
            | ~ ! [SX0: $i,SX1: $i] :
                  ( ( SX1 != empty_set )
                  | ( ( cartesian_product2 @ SX0 @ SX1 )
                    = empty_set ) ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[68]) ).

thf(81,plain,
    ! [SV7: $i,SV1: $i] :
      ( ( ( ~ ( in @ SV1 @ SV7 ) )
        = $true )
      | ( ( ~ ( in @ SV7 @ SV1 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[69]) ).

thf(82,plain,
    ! [SV10: $i,SV4: $i] :
      ( ( empty @ ( ordered_pair @ SV4 @ SV10 ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[72]) ).

thf(83,plain,
    ( ( ! [SX0: $i] :
          ( ( in @ ( sK8_B @ SX0 ) @ SX0 )
          | ( SX0 = empty_set ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[73]) ).

thf(84,plain,
    ( ( ! [SX0: $i] :
          ( ( SX0 != empty_set )
          | ! [SX1: $i] :
              ~ ( in @ SX1 @ SX0 ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[74]) ).

thf(85,plain,
    ! [SV5: $i,SV11: $i] :
      ( ( ( ~ ( ~ ( ~ ( in @ ( sK5_C @ SV11 @ SV5 ) @ SV5 )
                  | ~ ( in @ ( sK5_C @ SV11 @ SV5 ) @ SV11 ) )
              | ~ ( ( in @ ( sK5_C @ SV11 @ SV5 ) @ SV5 )
                  | ( in @ ( sK5_C @ SV11 @ SV5 ) @ SV11 ) ) ) )
        = $true )
      | ( ( SV5 = SV11 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[75]) ).

thf(86,plain,
    ! [SV12: $i,SV6: $i] :
      ( ( ~ ! [SY43: $i,SY44: $i] :
              ( ~ ( in @ SV6 @ SY43 )
              | ~ ( in @ SV12 @ SY44 )
              | ( in @ ( ordered_pair @ SV6 @ SV12 ) @ ( cartesian_product2 @ SY43 @ SY44 ) ) )
        | ~ ~ ( ~ ! [SY45: $i] :
                    ( ! [SY46: $i] :
                        ~ ( in @ ( ordered_pair @ SV6 @ SV12 ) @ ( cartesian_product2 @ SY45 @ SY46 ) )
                    | ( in @ SV6 @ SY45 ) )
              | ~ ! [SY47: $i,SY48: $i] :
                    ( ~ ( in @ ( ordered_pair @ SV6 @ SV12 ) @ ( cartesian_product2 @ SY47 @ SY48 ) )
                    | ( in @ SV12 @ SY48 ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[76]) ).

thf(87,plain,
    ( ( ( sK1_A != sK3_SY28 )
      | ( sK2_SY25 != sK4_SY30 ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[77]) ).

thf(88,plain,
    ( ( ~ ( ~ ( ( sK1_A != empty_set ) )
          | ~ ( ( sK2_SY25 != empty_set ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[78]) ).

thf(89,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ( ( cartesian_product2 @ SX0 @ SX1 )
           != empty_set )
          | ( SX0 = empty_set )
          | ( SX1 = empty_set ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[79]) ).

thf(90,plain,
    ( ( ~ ( ~ ! [SX0: $i] :
                ( ( SX0 != empty_set )
                | ! [SX1: $i] :
                    ( ( cartesian_product2 @ SX0 @ SX1 )
                    = empty_set ) )
          | ~ ! [SX0: $i,SX1: $i] :
                ( ( SX1 != empty_set )
                | ( ( cartesian_product2 @ SX0 @ SX1 )
                  = empty_set ) ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[80]) ).

thf(91,plain,
    ! [SV7: $i,SV1: $i] :
      ( ( ( in @ SV1 @ SV7 )
        = $false )
      | ( ( ~ ( in @ SV7 @ SV1 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[81]) ).

thf(92,plain,
    ! [SV13: $i] :
      ( ( ( in @ ( sK8_B @ SV13 ) @ SV13 )
        | ( SV13 = empty_set ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[83]) ).

thf(93,plain,
    ! [SV14: $i] :
      ( ( ( SV14 != empty_set )
        | ! [SY49: $i] :
            ~ ( in @ SY49 @ SV14 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[84]) ).

thf(94,plain,
    ! [SV5: $i,SV11: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK5_C @ SV11 @ SV5 ) @ SV5 )
              | ~ ( in @ ( sK5_C @ SV11 @ SV5 ) @ SV11 ) )
          | ~ ( ( in @ ( sK5_C @ SV11 @ SV5 ) @ SV5 )
              | ( in @ ( sK5_C @ SV11 @ SV5 ) @ SV11 ) ) )
        = $false )
      | ( ( SV5 = SV11 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[85]) ).

thf(95,plain,
    ! [SV12: $i,SV6: $i] :
      ( ( ~ ! [SY43: $i,SY44: $i] :
              ( ~ ( in @ SV6 @ SY43 )
              | ~ ( in @ SV12 @ SY44 )
              | ( in @ ( ordered_pair @ SV6 @ SV12 ) @ ( cartesian_product2 @ SY43 @ SY44 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[86]) ).

thf(96,plain,
    ! [SV12: $i,SV6: $i] :
      ( ( ~ ~ ( ~ ! [SY45: $i] :
                    ( ! [SY46: $i] :
                        ~ ( in @ ( ordered_pair @ SV6 @ SV12 ) @ ( cartesian_product2 @ SY45 @ SY46 ) )
                    | ( in @ SV6 @ SY45 ) )
              | ~ ! [SY47: $i,SY48: $i] :
                    ( ~ ( in @ ( ordered_pair @ SV6 @ SV12 ) @ ( cartesian_product2 @ SY47 @ SY48 ) )
                    | ( in @ SV12 @ SY48 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[86]) ).

thf(97,plain,
    ( ( ( ( sK1_A != sK3_SY28 ) )
      = $true )
    | ( ( ( sK2_SY25 != sK4_SY30 ) )
      = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[87]) ).

thf(98,plain,
    ( ( ~ ( ( sK1_A != empty_set ) )
      | ~ ( ( sK2_SY25 != empty_set ) ) )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[88]) ).

thf(99,plain,
    ! [SV15: $i] :
      ( ( ! [SY50: $i] :
            ( ( ( cartesian_product2 @ SV15 @ SY50 )
             != empty_set )
            | ( SV15 = empty_set )
            | ( SY50 = empty_set ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[89]) ).

thf(100,plain,
    ( ( ~ ! [SX0: $i] :
            ( ( SX0 != empty_set )
            | ! [SX1: $i] :
                ( ( cartesian_product2 @ SX0 @ SX1 )
                = empty_set ) )
      | ~ ! [SX0: $i,SX1: $i] :
            ( ( SX1 != empty_set )
            | ( ( cartesian_product2 @ SX0 @ SX1 )
              = empty_set ) ) )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[90]) ).

thf(101,plain,
    ! [SV1: $i,SV7: $i] :
      ( ( ( in @ SV7 @ SV1 )
        = $false )
      | ( ( in @ SV1 @ SV7 )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[91]) ).

thf(102,plain,
    ! [SV13: $i] :
      ( ( ( in @ ( sK8_B @ SV13 ) @ SV13 )
        = $true )
      | ( ( SV13 = empty_set )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[92]) ).

thf(103,plain,
    ! [SV14: $i] :
      ( ( ( ( SV14 != empty_set ) )
        = $true )
      | ( ( ! [SY49: $i] :
              ~ ( in @ SY49 @ SV14 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[93]) ).

thf(104,plain,
    ! [SV5: $i,SV11: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK5_C @ SV11 @ SV5 ) @ SV5 )
              | ~ ( in @ ( sK5_C @ SV11 @ SV5 ) @ SV11 ) ) )
        = $false )
      | ( ( SV5 = SV11 )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[94]) ).

thf(105,plain,
    ! [SV5: $i,SV11: $i] :
      ( ( ( ~ ( ( in @ ( sK5_C @ SV11 @ SV5 ) @ SV5 )
              | ( in @ ( sK5_C @ SV11 @ SV5 ) @ SV11 ) ) )
        = $false )
      | ( ( SV5 = SV11 )
        = $true ) ),
    inference(extcnf_or_neg,[status(thm)],[94]) ).

thf(106,plain,
    ! [SV12: $i,SV6: $i] :
      ( ( ! [SY43: $i,SY44: $i] :
            ( ~ ( in @ SV6 @ SY43 )
            | ~ ( in @ SV12 @ SY44 )
            | ( in @ ( ordered_pair @ SV6 @ SV12 ) @ ( cartesian_product2 @ SY43 @ SY44 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[95]) ).

thf(107,plain,
    ! [SV12: $i,SV6: $i] :
      ( ( ~ ( ~ ! [SY45: $i] :
                  ( ! [SY46: $i] :
                      ~ ( in @ ( ordered_pair @ SV6 @ SV12 ) @ ( cartesian_product2 @ SY45 @ SY46 ) )
                  | ( in @ SV6 @ SY45 ) )
            | ~ ! [SY47: $i,SY48: $i] :
                  ( ~ ( in @ ( ordered_pair @ SV6 @ SV12 ) @ ( cartesian_product2 @ SY47 @ SY48 ) )
                  | ( in @ SV12 @ SY48 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[96]) ).

thf(108,plain,
    ( ( ( sK1_A = sK3_SY28 )
      = $false )
    | ( ( ( sK2_SY25 != sK4_SY30 ) )
      = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[97]) ).

thf(109,plain,
    ( ( ~ ( ( sK1_A != empty_set ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[98]) ).

thf(110,plain,
    ( ( ~ ( ( sK2_SY25 != empty_set ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[98]) ).

thf(111,plain,
    ! [SV16: $i,SV15: $i] :
      ( ( ( ( cartesian_product2 @ SV15 @ SV16 )
         != empty_set )
        | ( SV15 = empty_set )
        | ( SV16 = empty_set ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[99]) ).

thf(112,plain,
    ( ( ~ ! [SX0: $i] :
            ( ( SX0 != empty_set )
            | ! [SX1: $i] :
                ( ( cartesian_product2 @ SX0 @ SX1 )
                = empty_set ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[100]) ).

thf(113,plain,
    ( ( ~ ! [SX0: $i,SX1: $i] :
            ( ( SX1 != empty_set )
            | ( ( cartesian_product2 @ SX0 @ SX1 )
              = empty_set ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[100]) ).

thf(114,plain,
    ! [SV14: $i] :
      ( ( ( SV14 = empty_set )
        = $false )
      | ( ( ! [SY49: $i] :
              ~ ( in @ SY49 @ SV14 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[103]) ).

thf(115,plain,
    ! [SV5: $i,SV11: $i] :
      ( ( ( ~ ( in @ ( sK5_C @ SV11 @ SV5 ) @ SV5 )
          | ~ ( in @ ( sK5_C @ SV11 @ SV5 ) @ SV11 ) )
        = $true )
      | ( ( SV5 = SV11 )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[104]) ).

thf(116,plain,
    ! [SV5: $i,SV11: $i] :
      ( ( ( ( in @ ( sK5_C @ SV11 @ SV5 ) @ SV5 )
          | ( in @ ( sK5_C @ SV11 @ SV5 ) @ SV11 ) )
        = $true )
      | ( ( SV5 = SV11 )
        = $true ) ),
    inference(extcnf_not_neg,[status(thm)],[105]) ).

thf(117,plain,
    ! [SV12: $i,SV17: $i,SV6: $i] :
      ( ( ! [SY51: $i] :
            ( ~ ( in @ SV6 @ SV17 )
            | ~ ( in @ SV12 @ SY51 )
            | ( in @ ( ordered_pair @ SV6 @ SV12 ) @ ( cartesian_product2 @ SV17 @ SY51 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[106]) ).

thf(118,plain,
    ! [SV12: $i,SV6: $i] :
      ( ( ~ ! [SY45: $i] :
              ( ! [SY46: $i] :
                  ~ ( in @ ( ordered_pair @ SV6 @ SV12 ) @ ( cartesian_product2 @ SY45 @ SY46 ) )
              | ( in @ SV6 @ SY45 ) )
        | ~ ! [SY47: $i,SY48: $i] :
              ( ~ ( in @ ( ordered_pair @ SV6 @ SV12 ) @ ( cartesian_product2 @ SY47 @ SY48 ) )
              | ( in @ SV12 @ SY48 ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[107]) ).

thf(119,plain,
    ( ( ( sK2_SY25 = sK4_SY30 )
      = $false )
    | ( ( sK1_A = sK3_SY28 )
      = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[108]) ).

thf(120,plain,
    ( ( ( sK1_A != empty_set ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[109]) ).

thf(121,plain,
    ( ( ( sK2_SY25 != empty_set ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[110]) ).

thf(122,plain,
    ! [SV16: $i,SV15: $i] :
      ( ( ( ( ( cartesian_product2 @ SV15 @ SV16 )
           != empty_set ) )
        = $true )
      | ( ( ( SV15 = empty_set )
          | ( SV16 = empty_set ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[111]) ).

thf(123,plain,
    ( ( ! [SX0: $i] :
          ( ( SX0 != empty_set )
          | ! [SX1: $i] :
              ( ( cartesian_product2 @ SX0 @ SX1 )
              = empty_set ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[112]) ).

thf(124,plain,
    ( ( ! [SX0: $i,SX1: $i] :
          ( ( SX1 != empty_set )
          | ( ( cartesian_product2 @ SX0 @ SX1 )
            = empty_set ) ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[113]) ).

thf(125,plain,
    ! [SV14: $i,SV18: $i] :
      ( ( ( ~ ( in @ SV18 @ SV14 ) )
        = $true )
      | ( ( SV14 = empty_set )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[114]) ).

thf(126,plain,
    ! [SV5: $i,SV11: $i] :
      ( ( ( ~ ( in @ ( sK5_C @ SV11 @ SV5 ) @ SV5 ) )
        = $true )
      | ( ( ~ ( in @ ( sK5_C @ SV11 @ SV5 ) @ SV11 ) )
        = $true )
      | ( ( SV5 = SV11 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[115]) ).

thf(127,plain,
    ! [SV5: $i,SV11: $i] :
      ( ( ( in @ ( sK5_C @ SV11 @ SV5 ) @ SV5 )
        = $true )
      | ( ( in @ ( sK5_C @ SV11 @ SV5 ) @ SV11 )
        = $true )
      | ( ( SV5 = SV11 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[116]) ).

thf(128,plain,
    ! [SV19: $i,SV12: $i,SV17: $i,SV6: $i] :
      ( ( ~ ( in @ SV6 @ SV17 )
        | ~ ( in @ SV12 @ SV19 )
        | ( in @ ( ordered_pair @ SV6 @ SV12 ) @ ( cartesian_product2 @ SV17 @ SV19 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[117]) ).

thf(129,plain,
    ! [SV12: $i,SV6: $i] :
      ( ( ~ ! [SY45: $i] :
              ( ! [SY46: $i] :
                  ~ ( in @ ( ordered_pair @ SV6 @ SV12 ) @ ( cartesian_product2 @ SY45 @ SY46 ) )
              | ( in @ SV6 @ SY45 ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[118]) ).

thf(130,plain,
    ! [SV12: $i,SV6: $i] :
      ( ( ~ ! [SY47: $i,SY48: $i] :
              ( ~ ( in @ ( ordered_pair @ SV6 @ SV12 ) @ ( cartesian_product2 @ SY47 @ SY48 ) )
              | ( in @ SV12 @ SY48 ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[118]) ).

thf(131,plain,
    ( ( sK1_A = empty_set )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[120]) ).

thf(132,plain,
    ( ( sK2_SY25 = empty_set )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[121]) ).

thf(133,plain,
    ! [SV16: $i,SV15: $i] :
      ( ( ( ( cartesian_product2 @ SV15 @ SV16 )
          = empty_set )
        = $false )
      | ( ( ( SV15 = empty_set )
          | ( SV16 = empty_set ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[122]) ).

thf(134,plain,
    ! [SV20: $i] :
      ( ( ( SV20 != empty_set )
        | ! [SY52: $i] :
            ( ( cartesian_product2 @ SV20 @ SY52 )
            = empty_set ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[123]) ).

thf(135,plain,
    ! [SV21: $i] :
      ( ( ! [SY53: $i] :
            ( ( SY53 != empty_set )
            | ( ( cartesian_product2 @ SV21 @ SY53 )
              = empty_set ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[124]) ).

thf(136,plain,
    ! [SV14: $i,SV18: $i] :
      ( ( ( in @ SV18 @ SV14 )
        = $false )
      | ( ( SV14 = empty_set )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[125]) ).

thf(137,plain,
    ! [SV5: $i,SV11: $i] :
      ( ( ( in @ ( sK5_C @ SV11 @ SV5 ) @ SV5 )
        = $false )
      | ( ( ~ ( in @ ( sK5_C @ SV11 @ SV5 ) @ SV11 ) )
        = $true )
      | ( ( SV5 = SV11 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[126]) ).

thf(138,plain,
    ! [SV19: $i,SV12: $i,SV17: $i,SV6: $i] :
      ( ( ( ~ ( in @ SV6 @ SV17 )
          | ~ ( in @ SV12 @ SV19 ) )
        = $true )
      | ( ( in @ ( ordered_pair @ SV6 @ SV12 ) @ ( cartesian_product2 @ SV17 @ SV19 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[128]) ).

thf(139,plain,
    ! [SV12: $i,SV6: $i] :
      ( ( ! [SY45: $i] :
            ( ! [SY46: $i] :
                ~ ( in @ ( ordered_pair @ SV6 @ SV12 ) @ ( cartesian_product2 @ SY45 @ SY46 ) )
            | ( in @ SV6 @ SY45 ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[129]) ).

thf(140,plain,
    ! [SV12: $i,SV6: $i] :
      ( ( ! [SY47: $i,SY48: $i] :
            ( ~ ( in @ ( ordered_pair @ SV6 @ SV12 ) @ ( cartesian_product2 @ SY47 @ SY48 ) )
            | ( in @ SV12 @ SY48 ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[130]) ).

thf(141,plain,
    ! [SV16: $i,SV15: $i] :
      ( ( ( SV15 = empty_set )
        = $true )
      | ( ( SV16 = empty_set )
        = $true )
      | ( ( ( cartesian_product2 @ SV15 @ SV16 )
          = empty_set )
        = $false ) ),
    inference(extcnf_or_pos,[status(thm)],[133]) ).

thf(142,plain,
    ! [SV20: $i] :
      ( ( ( ( SV20 != empty_set ) )
        = $true )
      | ( ( ! [SY52: $i] :
              ( ( cartesian_product2 @ SV20 @ SY52 )
              = empty_set ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[134]) ).

thf(143,plain,
    ! [SV21: $i,SV22: $i] :
      ( ( ( SV22 != empty_set )
        | ( ( cartesian_product2 @ SV21 @ SV22 )
          = empty_set ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[135]) ).

thf(144,plain,
    ! [SV5: $i,SV11: $i] :
      ( ( ( in @ ( sK5_C @ SV11 @ SV5 ) @ SV11 )
        = $false )
      | ( ( in @ ( sK5_C @ SV11 @ SV5 ) @ SV5 )
        = $false )
      | ( ( SV5 = SV11 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[137]) ).

thf(145,plain,
    ! [SV19: $i,SV12: $i,SV17: $i,SV6: $i] :
      ( ( ( ~ ( in @ SV6 @ SV17 ) )
        = $true )
      | ( ( ~ ( in @ SV12 @ SV19 ) )
        = $true )
      | ( ( in @ ( ordered_pair @ SV6 @ SV12 ) @ ( cartesian_product2 @ SV17 @ SV19 ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[138]) ).

thf(146,plain,
    ! [SV23: $i,SV12: $i,SV6: $i] :
      ( ( ! [SY54: $i] :
            ~ ( in @ ( ordered_pair @ SV6 @ SV12 ) @ ( cartesian_product2 @ SV23 @ SY54 ) )
        | ( in @ SV6 @ SV23 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[139]) ).

thf(147,plain,
    ! [SV24: $i,SV12: $i,SV6: $i] :
      ( ( ! [SY55: $i] :
            ( ~ ( in @ ( ordered_pair @ SV6 @ SV12 ) @ ( cartesian_product2 @ SV24 @ SY55 ) )
            | ( in @ SV12 @ SY55 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[140]) ).

thf(148,plain,
    ! [SV20: $i] :
      ( ( ( SV20 = empty_set )
        = $false )
      | ( ( ! [SY52: $i] :
              ( ( cartesian_product2 @ SV20 @ SY52 )
              = empty_set ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[142]) ).

thf(149,plain,
    ! [SV21: $i,SV22: $i] :
      ( ( ( ( SV22 != empty_set ) )
        = $true )
      | ( ( ( cartesian_product2 @ SV21 @ SV22 )
          = empty_set )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[143]) ).

thf(150,plain,
    ! [SV19: $i,SV12: $i,SV17: $i,SV6: $i] :
      ( ( ( in @ SV6 @ SV17 )
        = $false )
      | ( ( ~ ( in @ SV12 @ SV19 ) )
        = $true )
      | ( ( in @ ( ordered_pair @ SV6 @ SV12 ) @ ( cartesian_product2 @ SV17 @ SV19 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[145]) ).

thf(151,plain,
    ! [SV23: $i,SV12: $i,SV6: $i] :
      ( ( ( ! [SY54: $i] :
              ~ ( in @ ( ordered_pair @ SV6 @ SV12 ) @ ( cartesian_product2 @ SV23 @ SY54 ) ) )
        = $true )
      | ( ( in @ SV6 @ SV23 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[146]) ).

thf(152,plain,
    ! [SV25: $i,SV24: $i,SV12: $i,SV6: $i] :
      ( ( ~ ( in @ ( ordered_pair @ SV6 @ SV12 ) @ ( cartesian_product2 @ SV24 @ SV25 ) )
        | ( in @ SV12 @ SV25 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[147]) ).

thf(153,plain,
    ! [SV26: $i,SV20: $i] :
      ( ( ( ( cartesian_product2 @ SV20 @ SV26 )
          = empty_set )
        = $true )
      | ( ( SV20 = empty_set )
        = $false ) ),
    inference(extcnf_forall_pos,[status(thm)],[148]) ).

thf(154,plain,
    ! [SV21: $i,SV22: $i] :
      ( ( ( SV22 = empty_set )
        = $false )
      | ( ( ( cartesian_product2 @ SV21 @ SV22 )
          = empty_set )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[149]) ).

thf(155,plain,
    ! [SV17: $i,SV6: $i,SV19: $i,SV12: $i] :
      ( ( ( in @ SV12 @ SV19 )
        = $false )
      | ( ( in @ SV6 @ SV17 )
        = $false )
      | ( ( in @ ( ordered_pair @ SV6 @ SV12 ) @ ( cartesian_product2 @ SV17 @ SV19 ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[150]) ).

thf(156,plain,
    ! [SV27: $i,SV23: $i,SV12: $i,SV6: $i] :
      ( ( ( ~ ( in @ ( ordered_pair @ SV6 @ SV12 ) @ ( cartesian_product2 @ SV23 @ SV27 ) ) )
        = $true )
      | ( ( in @ SV6 @ SV23 )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[151]) ).

thf(157,plain,
    ! [SV25: $i,SV24: $i,SV12: $i,SV6: $i] :
      ( ( ( ~ ( in @ ( ordered_pair @ SV6 @ SV12 ) @ ( cartesian_product2 @ SV24 @ SV25 ) ) )
        = $true )
      | ( ( in @ SV12 @ SV25 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[152]) ).

thf(158,plain,
    ! [SV27: $i,SV23: $i,SV12: $i,SV6: $i] :
      ( ( ( in @ ( ordered_pair @ SV6 @ SV12 ) @ ( cartesian_product2 @ SV23 @ SV27 ) )
        = $false )
      | ( ( in @ SV6 @ SV23 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[156]) ).

thf(159,plain,
    ! [SV25: $i,SV24: $i,SV12: $i,SV6: $i] :
      ( ( ( in @ ( ordered_pair @ SV6 @ SV12 ) @ ( cartesian_product2 @ SV24 @ SV25 ) )
        = $false )
      | ( ( in @ SV12 @ SV25 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[157]) ).

thf(160,plain,
    $false = $true,
    inference(fo_atp_e,[status(thm)],[45,159,158,155,154,153,144,141,136,132,131,127,119,102,101,82,71,70,63,52,48]) ).

thf(161,plain,
    $false,
    inference(solved_all_splits,[solved_all_splits(join,[])],[160]) ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.06/0.12  % Problem  : SET980+1 : TPTP v8.1.0. Bugfixed v4.0.0.
% 0.06/0.13  % Command  : leo --timeout %d --proofoutput 1 --foatp e --atp e=./eprover %s
% 0.13/0.34  % Computer : n015.cluster.edu
% 0.13/0.34  % Model    : x86_64 x86_64
% 0.13/0.34  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.13/0.34  % Memory   : 8042.1875MB
% 0.13/0.34  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.13/0.34  % CPULimit : 300
% 0.13/0.34  % WCLimit  : 600
% 0.13/0.34  % DateTime : Sun Jul 10 20:16:23 EDT 2022
% 0.13/0.34  % CPUTime  : 
% 0.13/0.35  
% 0.13/0.35   No.of.Axioms: 11
% 0.13/0.35  
% 0.13/0.35   Length.of.Defs: 0
% 0.13/0.35  
% 0.13/0.35   Contains.Choice.Funs: false
% 0.13/0.36  (rf:0,axioms:11,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:13,loop_count:0,foatp_calls:0,translation:fof_full)..........
% 1.37/1.53  
% 1.37/1.53  ********************************
% 1.37/1.53  *   All subproblems solved!    *
% 1.37/1.53  ********************************
% 1.37/1.53  % SZS status Theorem for /export/starexec/sandbox2/benchmark/theBenchmark.p : (rf:0,axioms:12,ps:3,u:6,ude:true,rLeibEQ:true,rAndEQ:true,use_choice:true,use_extuni:true,use_extcnf_combined:true,expand_extuni:false,foatp:e,atp_timeout:74,atp_calls_frequency:10,ordering:none,proof_output:1,protocol_output:false,clause_count:160,loop_count:0,foatp_calls:1,translation:fof_full)
% 1.37/1.54  
% 1.37/1.54  %**** Beginning of derivation protocol ****
% 1.37/1.54  % SZS output start CNFRefutation
% See solution above
% 1.37/1.54  
% 1.37/1.54  %**** End of derivation protocol ****
% 1.37/1.54  %**** no. of clauses in derivation: 161 ****
% 1.37/1.54  %**** clause counter: 160 ****
% 1.37/1.54  
% 1.37/1.54  % SZS status Theorem for /export/starexec/sandbox2/benchmark/theBenchmark.p : (rf:0,axioms:12,ps:3,u:6,ude:true,rLeibEQ:true,rAndEQ:true,use_choice:true,use_extuni:true,use_extcnf_combined:true,expand_extuni:false,foatp:e,atp_timeout:74,atp_calls_frequency:10,ordering:none,proof_output:1,protocol_output:false,clause_count:160,loop_count:0,foatp_calls:1,translation:fof_full)
%------------------------------------------------------------------------------