TSTP Solution File: SET979+1 by LEO-II---1.7.0

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : LEO-II---1.7.0
% Problem  : SET979+1 : TPTP v8.1.0. Released v3.2.0.
% Transfm  : none
% Format   : tptp
% Command  : leo --timeout %d --proofoutput 1 --foatp e --atp e=./eprover %s

% Computer : n013.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 03:06:41 EDT 2022

% Result   : Theorem 0.19s 0.43s
% Output   : CNFRefutation 0.19s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :   12
%            Number of leaves      :   20
% Syntax   : Number of formulae    :  123 (  97 unt;  10 typ;   0 def)
%            Number of atoms       :  384 ( 203 equ;   0 cnn)
%            Maximal formula atoms :    2 (   3 avg)
%            Number of connectives :  960 (  55   ~;  28   |;  11   &; 862   @)
%                                         (   0 <=>;   4  =>;   0  <=;   0 <~>)
%            Maximal formula depth :    8 (   2 avg)
%            Number of types       :    2 (   0 usr)
%            Number of type conns  :    8 (   8   >;   0   *;   0   +;   0  <<)
%            Number of symbols     :   13 (  10 usr;   7 con; 0-2 aty)
%            Number of variables   :  224 (   0   ^ 220   !;   4   ?; 224   :)

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

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

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

thf(tp_sK2_SY20,type,
    sK2_SY20: $i ).

thf(tp_sK3_SY22,type,
    sK3_SY22: $i ).

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

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

thf(tp_set_union2,type,
    set_union2: $i > $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] :
      ( ( unordered_pair @ A @ B )
      = ( set_union2 @ ( singleton @ A ) @ ( singleton @ B ) ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',t41_enumset1) ).

thf(2,axiom,
    ! [A: $i,B: $i,C: $i] :
      ( ( ( cartesian_product2 @ ( set_union2 @ A @ B ) @ C )
        = ( set_union2 @ ( cartesian_product2 @ A @ C ) @ ( cartesian_product2 @ B @ C ) ) )
      & ( ( cartesian_product2 @ C @ ( set_union2 @ A @ B ) )
        = ( set_union2 @ ( cartesian_product2 @ C @ A ) @ ( cartesian_product2 @ C @ B ) ) ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',t120_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] :
      ( ( set_union2 @ A @ A )
      = A ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',idempotence_k2_xboole_0) ).

thf(6,axiom,
    ! [A: $i,B: $i] :
      ( ~ ( empty @ A )
     => ~ ( empty @ ( set_union2 @ B @ A ) ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',fc3_xboole_0) ).

thf(7,axiom,
    ! [A: $i,B: $i] :
      ( ~ ( empty @ A )
     => ~ ( empty @ ( set_union2 @ A @ B ) ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',fc2_xboole_0) ).

thf(8,axiom,
    ! [A: $i,B: $i] :
      ( ( set_union2 @ A @ B )
      = ( set_union2 @ B @ A ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',commutativity_k2_xboole_0) ).

thf(9,axiom,
    ! [A: $i,B: $i] :
      ( ( unordered_pair @ A @ B )
      = ( unordered_pair @ B @ A ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',commutativity_k2_tarski) ).

thf(10,conjecture,
    ! [A: $i,B: $i,C: $i] :
      ( ( ( cartesian_product2 @ ( unordered_pair @ A @ B ) @ C )
        = ( set_union2 @ ( cartesian_product2 @ ( singleton @ A ) @ C ) @ ( cartesian_product2 @ ( singleton @ B ) @ C ) ) )
      & ( ( cartesian_product2 @ C @ ( unordered_pair @ A @ B ) )
        = ( set_union2 @ ( cartesian_product2 @ C @ ( singleton @ A ) ) @ ( cartesian_product2 @ C @ ( singleton @ B ) ) ) ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',t132_zfmisc_1) ).

thf(11,negated_conjecture,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ( ( cartesian_product2 @ ( unordered_pair @ A @ B ) @ C )
            = ( set_union2 @ ( cartesian_product2 @ ( singleton @ A ) @ C ) @ ( cartesian_product2 @ ( singleton @ B ) @ C ) ) )
          & ( ( cartesian_product2 @ C @ ( unordered_pair @ A @ B ) )
            = ( set_union2 @ ( cartesian_product2 @ C @ ( singleton @ A ) ) @ ( cartesian_product2 @ C @ ( singleton @ B ) ) ) ) ) )
    = $false ),
    inference(negate_conjecture,[status(cth)],[10]) ).

thf(12,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ( ( cartesian_product2 @ ( unordered_pair @ A @ B ) @ C )
            = ( set_union2 @ ( cartesian_product2 @ ( singleton @ A ) @ C ) @ ( cartesian_product2 @ ( singleton @ B ) @ C ) ) )
          & ( ( cartesian_product2 @ C @ ( unordered_pair @ A @ B ) )
            = ( set_union2 @ ( cartesian_product2 @ C @ ( singleton @ A ) ) @ ( cartesian_product2 @ C @ ( singleton @ B ) ) ) ) ) )
    = $false ),
    inference(unfold_def,[status(thm)],[11]) ).

thf(13,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( unordered_pair @ A @ B )
          = ( set_union2 @ ( singleton @ A ) @ ( singleton @ B ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[1]) ).

thf(14,plain,
    ( ( ! [A: $i,B: $i,C: $i] :
          ( ( ( cartesian_product2 @ ( set_union2 @ A @ B ) @ C )
            = ( set_union2 @ ( cartesian_product2 @ A @ C ) @ ( cartesian_product2 @ B @ C ) ) )
          & ( ( cartesian_product2 @ C @ ( set_union2 @ A @ B ) )
            = ( set_union2 @ ( cartesian_product2 @ C @ A ) @ ( cartesian_product2 @ C @ B ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[2]) ).

thf(15,plain,
    ( ( ? [A: $i] :
          ~ ( empty @ A ) )
    = $true ),
    inference(unfold_def,[status(thm)],[3]) ).

thf(16,plain,
    ( ( ? [A: $i] : ( empty @ A ) )
    = $true ),
    inference(unfold_def,[status(thm)],[4]) ).

thf(17,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( set_union2 @ A @ A )
          = A ) )
    = $true ),
    inference(unfold_def,[status(thm)],[5]) ).

thf(18,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( empty @ A )
         => ~ ( empty @ ( set_union2 @ B @ A ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[6]) ).

thf(19,plain,
    ( ( ! [A: $i,B: $i] :
          ( ~ ( empty @ A )
         => ~ ( empty @ ( set_union2 @ A @ B ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[7]) ).

thf(20,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( set_union2 @ A @ B )
          = ( set_union2 @ B @ A ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[8]) ).

thf(21,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( unordered_pair @ A @ B )
          = ( unordered_pair @ B @ A ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[9]) ).

thf(22,plain,
    ( ( ! [SY20: $i,SY21: $i] :
          ( ( ( cartesian_product2 @ ( unordered_pair @ sK1_A @ SY20 ) @ SY21 )
            = ( set_union2 @ ( cartesian_product2 @ ( singleton @ sK1_A ) @ SY21 ) @ ( cartesian_product2 @ ( singleton @ SY20 ) @ SY21 ) ) )
          & ( ( cartesian_product2 @ SY21 @ ( unordered_pair @ sK1_A @ SY20 ) )
            = ( set_union2 @ ( cartesian_product2 @ SY21 @ ( singleton @ sK1_A ) ) @ ( cartesian_product2 @ SY21 @ ( singleton @ SY20 ) ) ) ) ) )
    = $false ),
    inference(extcnf_forall_neg,[status(esa)],[12]) ).

thf(23,plain,
    ( ( ! [SY22: $i] :
          ( ( ( cartesian_product2 @ ( unordered_pair @ sK1_A @ sK2_SY20 ) @ SY22 )
            = ( set_union2 @ ( cartesian_product2 @ ( singleton @ sK1_A ) @ SY22 ) @ ( cartesian_product2 @ ( singleton @ sK2_SY20 ) @ SY22 ) ) )
          & ( ( cartesian_product2 @ SY22 @ ( unordered_pair @ sK1_A @ sK2_SY20 ) )
            = ( set_union2 @ ( cartesian_product2 @ SY22 @ ( singleton @ sK1_A ) ) @ ( cartesian_product2 @ SY22 @ ( singleton @ sK2_SY20 ) ) ) ) ) )
    = $false ),
    inference(extcnf_forall_neg,[status(esa)],[22]) ).

thf(24,plain,
    ( ( ( ( cartesian_product2 @ ( unordered_pair @ sK1_A @ sK2_SY20 ) @ sK3_SY22 )
        = ( set_union2 @ ( cartesian_product2 @ ( singleton @ sK1_A ) @ sK3_SY22 ) @ ( cartesian_product2 @ ( singleton @ sK2_SY20 ) @ sK3_SY22 ) ) )
      & ( ( cartesian_product2 @ sK3_SY22 @ ( unordered_pair @ sK1_A @ sK2_SY20 ) )
        = ( set_union2 @ ( cartesian_product2 @ sK3_SY22 @ ( singleton @ sK1_A ) ) @ ( cartesian_product2 @ sK3_SY22 @ ( singleton @ sK2_SY20 ) ) ) ) )
    = $false ),
    inference(extcnf_forall_neg,[status(esa)],[23]) ).

thf(25,plain,
    ( ( ( cartesian_product2 @ ( unordered_pair @ sK1_A @ sK2_SY20 ) @ sK3_SY22 )
      = ( set_union2 @ ( cartesian_product2 @ ( singleton @ sK1_A ) @ sK3_SY22 ) @ ( cartesian_product2 @ ( singleton @ sK2_SY20 ) @ sK3_SY22 ) ) )
    = $false ),
    inference(split_conjecture,[split_conjecture(split,[])],[24]) ).

thf(26,plain,
    ( ( ( cartesian_product2 @ sK3_SY22 @ ( unordered_pair @ sK1_A @ sK2_SY20 ) )
      = ( set_union2 @ ( cartesian_product2 @ sK3_SY22 @ ( singleton @ sK1_A ) ) @ ( cartesian_product2 @ sK3_SY22 @ ( singleton @ sK2_SY20 ) ) ) )
    = $false ),
    inference(split_conjecture,[split_conjecture(split,[])],[24]) ).

thf(27,plain,
    ( ( ( ( cartesian_product2 @ ( unordered_pair @ sK1_A @ sK2_SY20 ) @ sK3_SY22 )
       != ( set_union2 @ ( cartesian_product2 @ ( singleton @ sK1_A ) @ sK3_SY22 ) @ ( cartesian_product2 @ ( singleton @ sK2_SY20 ) @ sK3_SY22 ) ) ) )
    = $true ),
    inference(polarity_switch,[status(thm)],[25]) ).

thf(28,plain,
    ( ( ( ( cartesian_product2 @ sK3_SY22 @ ( unordered_pair @ sK1_A @ sK2_SY20 ) )
       != ( set_union2 @ ( cartesian_product2 @ sK3_SY22 @ ( singleton @ sK1_A ) ) @ ( cartesian_product2 @ sK3_SY22 @ ( singleton @ sK2_SY20 ) ) ) ) )
    = $true ),
    inference(polarity_switch,[status(thm)],[26]) ).

thf(29,plain,
    ( ( ! [A: $i] :
          ( ! [B: $i,C: $i] :
              ( ( cartesian_product2 @ ( set_union2 @ A @ B ) @ C )
              = ( set_union2 @ ( cartesian_product2 @ A @ C ) @ ( cartesian_product2 @ B @ C ) ) )
          & ! [B: $i,C: $i] :
              ( ( cartesian_product2 @ C @ ( set_union2 @ A @ B ) )
              = ( set_union2 @ ( cartesian_product2 @ C @ A ) @ ( cartesian_product2 @ C @ B ) ) ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[14]) ).

thf(30,plain,
    ( ( ~ ( empty @ sK4_A ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[15]) ).

thf(31,plain,
    ( ( empty @ sK5_A )
    = $true ),
    inference(extcnf_combined,[status(esa)],[16]) ).

thf(32,plain,
    ( ( ! [A: $i] :
          ( ( set_union2 @ A @ A )
          = A ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[17]) ).

thf(33,plain,
    ( ( ! [A: $i] :
          ( ( empty @ A )
          | ! [B: $i] :
              ~ ( empty @ ( set_union2 @ B @ A ) ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[18]) ).

thf(34,plain,
    ( ( ! [A: $i] :
          ( ( empty @ A )
          | ! [B: $i] :
              ~ ( empty @ ( set_union2 @ A @ B ) ) ) )
    = $true ),
    inference(extcnf_combined,[status(esa)],[19]) ).

thf(35,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( unordered_pair @ A @ B )
          = ( unordered_pair @ B @ A ) ) )
    = $true ),
    inference(copy,[status(thm)],[21]) ).

thf(36,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( set_union2 @ A @ B )
          = ( set_union2 @ B @ A ) ) )
    = $true ),
    inference(copy,[status(thm)],[20]) ).

thf(37,plain,
    ( ( ! [A: $i] :
          ( ( empty @ A )
          | ! [B: $i] :
              ~ ( empty @ ( set_union2 @ A @ B ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[34]) ).

thf(38,plain,
    ( ( ! [A: $i] :
          ( ( empty @ A )
          | ! [B: $i] :
              ~ ( empty @ ( set_union2 @ B @ A ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[33]) ).

thf(39,plain,
    ( ( ! [A: $i] :
          ( ( set_union2 @ A @ A )
          = A ) )
    = $true ),
    inference(copy,[status(thm)],[32]) ).

thf(40,plain,
    ( ( empty @ sK5_A )
    = $true ),
    inference(copy,[status(thm)],[31]) ).

thf(41,plain,
    ( ( ~ ( empty @ sK4_A ) )
    = $true ),
    inference(copy,[status(thm)],[30]) ).

thf(42,plain,
    ( ( ! [A: $i] :
          ( ! [B: $i,C: $i] :
              ( ( cartesian_product2 @ ( set_union2 @ A @ B ) @ C )
              = ( set_union2 @ ( cartesian_product2 @ A @ C ) @ ( cartesian_product2 @ B @ C ) ) )
          & ! [B: $i,C: $i] :
              ( ( cartesian_product2 @ C @ ( set_union2 @ A @ B ) )
              = ( set_union2 @ ( cartesian_product2 @ C @ A ) @ ( cartesian_product2 @ C @ B ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[29]) ).

thf(43,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( unordered_pair @ A @ B )
          = ( set_union2 @ ( singleton @ A ) @ ( singleton @ B ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[13]) ).

thf(44,plain,
    ( ( ( ( cartesian_product2 @ ( unordered_pair @ sK1_A @ sK2_SY20 ) @ sK3_SY22 )
       != ( set_union2 @ ( cartesian_product2 @ ( singleton @ sK1_A ) @ sK3_SY22 ) @ ( cartesian_product2 @ ( singleton @ sK2_SY20 ) @ sK3_SY22 ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[27]) ).

thf(45,plain,
    ( ( ! [SX0: $i] :
          ~ ( ~ ! [SX1: $i,SX2: $i] :
                  ( ( cartesian_product2 @ ( set_union2 @ SX0 @ SX1 ) @ SX2 )
                  = ( set_union2 @ ( cartesian_product2 @ SX0 @ SX2 ) @ ( cartesian_product2 @ SX1 @ SX2 ) ) )
            | ~ ! [SX1: $i,SX2: $i] :
                  ( ( cartesian_product2 @ SX2 @ ( set_union2 @ SX0 @ SX1 ) )
                  = ( set_union2 @ ( cartesian_product2 @ SX2 @ SX0 ) @ ( cartesian_product2 @ SX2 @ SX1 ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[42]) ).

thf(46,plain,
    ! [SV1: $i] :
      ( ( ! [SY23: $i] :
            ( ( unordered_pair @ SV1 @ SY23 )
            = ( unordered_pair @ SY23 @ SV1 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[35]) ).

thf(47,plain,
    ! [SV2: $i] :
      ( ( ! [SY24: $i] :
            ( ( set_union2 @ SV2 @ SY24 )
            = ( set_union2 @ SY24 @ SV2 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[36]) ).

thf(48,plain,
    ! [SV3: $i] :
      ( ( ( empty @ SV3 )
        | ! [SY25: $i] :
            ~ ( empty @ ( set_union2 @ SV3 @ SY25 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[37]) ).

thf(49,plain,
    ! [SV4: $i] :
      ( ( ( empty @ SV4 )
        | ! [SY26: $i] :
            ~ ( empty @ ( set_union2 @ SY26 @ SV4 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[38]) ).

thf(50,plain,
    ! [SV5: $i] :
      ( ( ( set_union2 @ SV5 @ SV5 )
        = SV5 )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[39]) ).

thf(51,plain,
    ( ( empty @ sK4_A )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[41]) ).

thf(52,plain,
    ! [SV6: $i] :
      ( ( ! [SY27: $i] :
            ( ( unordered_pair @ SV6 @ SY27 )
            = ( set_union2 @ ( singleton @ SV6 ) @ ( singleton @ SY27 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[43]) ).

thf(53,plain,
    ( ( ( cartesian_product2 @ ( unordered_pair @ sK1_A @ sK2_SY20 ) @ sK3_SY22 )
      = ( set_union2 @ ( cartesian_product2 @ ( singleton @ sK1_A ) @ sK3_SY22 ) @ ( cartesian_product2 @ ( singleton @ sK2_SY20 ) @ sK3_SY22 ) ) )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[44]) ).

thf(54,plain,
    ! [SV7: $i] :
      ( ( ~ ( ~ ! [SY28: $i,SY29: $i] :
                  ( ( cartesian_product2 @ ( set_union2 @ SV7 @ SY28 ) @ SY29 )
                  = ( set_union2 @ ( cartesian_product2 @ SV7 @ SY29 ) @ ( cartesian_product2 @ SY28 @ SY29 ) ) )
            | ~ ! [SY30: $i,SY31: $i] :
                  ( ( cartesian_product2 @ SY31 @ ( set_union2 @ SV7 @ SY30 ) )
                  = ( set_union2 @ ( cartesian_product2 @ SY31 @ SV7 ) @ ( cartesian_product2 @ SY31 @ SY30 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[45]) ).

thf(55,plain,
    ! [SV8: $i,SV1: $i] :
      ( ( ( unordered_pair @ SV1 @ SV8 )
        = ( unordered_pair @ SV8 @ SV1 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[46]) ).

thf(56,plain,
    ! [SV9: $i,SV2: $i] :
      ( ( ( set_union2 @ SV2 @ SV9 )
        = ( set_union2 @ SV9 @ SV2 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[47]) ).

thf(57,plain,
    ! [SV3: $i] :
      ( ( ( empty @ SV3 )
        = $true )
      | ( ( ! [SY25: $i] :
              ~ ( empty @ ( set_union2 @ SV3 @ SY25 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[48]) ).

thf(58,plain,
    ! [SV4: $i] :
      ( ( ( empty @ SV4 )
        = $true )
      | ( ( ! [SY26: $i] :
              ~ ( empty @ ( set_union2 @ SY26 @ SV4 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[49]) ).

thf(59,plain,
    ! [SV10: $i,SV6: $i] :
      ( ( ( unordered_pair @ SV6 @ SV10 )
        = ( set_union2 @ ( singleton @ SV6 ) @ ( singleton @ SV10 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[52]) ).

thf(60,plain,
    ! [SV7: $i] :
      ( ( ~ ! [SY28: $i,SY29: $i] :
              ( ( cartesian_product2 @ ( set_union2 @ SV7 @ SY28 ) @ SY29 )
              = ( set_union2 @ ( cartesian_product2 @ SV7 @ SY29 ) @ ( cartesian_product2 @ SY28 @ SY29 ) ) )
        | ~ ! [SY30: $i,SY31: $i] :
              ( ( cartesian_product2 @ SY31 @ ( set_union2 @ SV7 @ SY30 ) )
              = ( set_union2 @ ( cartesian_product2 @ SY31 @ SV7 ) @ ( cartesian_product2 @ SY31 @ SY30 ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[54]) ).

thf(61,plain,
    ! [SV11: $i,SV3: $i] :
      ( ( ( ~ ( empty @ ( set_union2 @ SV3 @ SV11 ) ) )
        = $true )
      | ( ( empty @ SV3 )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[57]) ).

thf(62,plain,
    ! [SV4: $i,SV12: $i] :
      ( ( ( ~ ( empty @ ( set_union2 @ SV12 @ SV4 ) ) )
        = $true )
      | ( ( empty @ SV4 )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[58]) ).

thf(63,plain,
    ! [SV7: $i] :
      ( ( ~ ! [SY28: $i,SY29: $i] :
              ( ( cartesian_product2 @ ( set_union2 @ SV7 @ SY28 ) @ SY29 )
              = ( set_union2 @ ( cartesian_product2 @ SV7 @ SY29 ) @ ( cartesian_product2 @ SY28 @ SY29 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[60]) ).

thf(64,plain,
    ! [SV7: $i] :
      ( ( ~ ! [SY30: $i,SY31: $i] :
              ( ( cartesian_product2 @ SY31 @ ( set_union2 @ SV7 @ SY30 ) )
              = ( set_union2 @ ( cartesian_product2 @ SY31 @ SV7 ) @ ( cartesian_product2 @ SY31 @ SY30 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[60]) ).

thf(65,plain,
    ! [SV11: $i,SV3: $i] :
      ( ( ( empty @ ( set_union2 @ SV3 @ SV11 ) )
        = $false )
      | ( ( empty @ SV3 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[61]) ).

thf(66,plain,
    ! [SV4: $i,SV12: $i] :
      ( ( ( empty @ ( set_union2 @ SV12 @ SV4 ) )
        = $false )
      | ( ( empty @ SV4 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[62]) ).

thf(67,plain,
    ! [SV7: $i] :
      ( ( ! [SY28: $i,SY29: $i] :
            ( ( cartesian_product2 @ ( set_union2 @ SV7 @ SY28 ) @ SY29 )
            = ( set_union2 @ ( cartesian_product2 @ SV7 @ SY29 ) @ ( cartesian_product2 @ SY28 @ SY29 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[63]) ).

thf(68,plain,
    ! [SV7: $i] :
      ( ( ! [SY30: $i,SY31: $i] :
            ( ( cartesian_product2 @ SY31 @ ( set_union2 @ SV7 @ SY30 ) )
            = ( set_union2 @ ( cartesian_product2 @ SY31 @ SV7 ) @ ( cartesian_product2 @ SY31 @ SY30 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[64]) ).

thf(69,plain,
    ! [SV13: $i,SV7: $i] :
      ( ( ! [SY32: $i] :
            ( ( cartesian_product2 @ ( set_union2 @ SV7 @ SV13 ) @ SY32 )
            = ( set_union2 @ ( cartesian_product2 @ SV7 @ SY32 ) @ ( cartesian_product2 @ SV13 @ SY32 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[67]) ).

thf(70,plain,
    ! [SV14: $i,SV7: $i] :
      ( ( ! [SY33: $i] :
            ( ( cartesian_product2 @ SY33 @ ( set_union2 @ SV7 @ SV14 ) )
            = ( set_union2 @ ( cartesian_product2 @ SY33 @ SV7 ) @ ( cartesian_product2 @ SY33 @ SV14 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[68]) ).

thf(71,plain,
    ! [SV15: $i,SV13: $i,SV7: $i] :
      ( ( ( cartesian_product2 @ ( set_union2 @ SV7 @ SV13 ) @ SV15 )
        = ( set_union2 @ ( cartesian_product2 @ SV7 @ SV15 ) @ ( cartesian_product2 @ SV13 @ SV15 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[69]) ).

thf(72,plain,
    ! [SV14: $i,SV7: $i,SV16: $i] :
      ( ( ( cartesian_product2 @ SV16 @ ( set_union2 @ SV7 @ SV14 ) )
        = ( set_union2 @ ( cartesian_product2 @ SV16 @ SV7 ) @ ( cartesian_product2 @ SV16 @ SV14 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[70]) ).

thf(73,plain,
    $false = $true,
    inference(fo_atp_e,[status(thm)],[40,72,71,66,65,59,56,55,53,51,50]) ).

thf(74,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( unordered_pair @ A @ B )
          = ( unordered_pair @ B @ A ) ) )
    = $true ),
    inference(copy,[status(thm)],[21]) ).

thf(75,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( set_union2 @ A @ B )
          = ( set_union2 @ B @ A ) ) )
    = $true ),
    inference(copy,[status(thm)],[20]) ).

thf(76,plain,
    ( ( ! [A: $i] :
          ( ( empty @ A )
          | ! [B: $i] :
              ~ ( empty @ ( set_union2 @ A @ B ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[34]) ).

thf(77,plain,
    ( ( ! [A: $i] :
          ( ( empty @ A )
          | ! [B: $i] :
              ~ ( empty @ ( set_union2 @ B @ A ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[33]) ).

thf(78,plain,
    ( ( ! [A: $i] :
          ( ( set_union2 @ A @ A )
          = A ) )
    = $true ),
    inference(copy,[status(thm)],[32]) ).

thf(79,plain,
    ( ( empty @ sK5_A )
    = $true ),
    inference(copy,[status(thm)],[31]) ).

thf(80,plain,
    ( ( ~ ( empty @ sK4_A ) )
    = $true ),
    inference(copy,[status(thm)],[30]) ).

thf(81,plain,
    ( ( ! [A: $i] :
          ( ! [B: $i,C: $i] :
              ( ( cartesian_product2 @ ( set_union2 @ A @ B ) @ C )
              = ( set_union2 @ ( cartesian_product2 @ A @ C ) @ ( cartesian_product2 @ B @ C ) ) )
          & ! [B: $i,C: $i] :
              ( ( cartesian_product2 @ C @ ( set_union2 @ A @ B ) )
              = ( set_union2 @ ( cartesian_product2 @ C @ A ) @ ( cartesian_product2 @ C @ B ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[29]) ).

thf(82,plain,
    ( ( ! [A: $i,B: $i] :
          ( ( unordered_pair @ A @ B )
          = ( set_union2 @ ( singleton @ A ) @ ( singleton @ B ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[13]) ).

thf(83,plain,
    ( ( ( ( cartesian_product2 @ sK3_SY22 @ ( unordered_pair @ sK1_A @ sK2_SY20 ) )
       != ( set_union2 @ ( cartesian_product2 @ sK3_SY22 @ ( singleton @ sK1_A ) ) @ ( cartesian_product2 @ sK3_SY22 @ ( singleton @ sK2_SY20 ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[28]) ).

thf(84,plain,
    ( ( ! [SX0: $i] :
          ~ ( ~ ! [SX1: $i,SX2: $i] :
                  ( ( cartesian_product2 @ ( set_union2 @ SX0 @ SX1 ) @ SX2 )
                  = ( set_union2 @ ( cartesian_product2 @ SX0 @ SX2 ) @ ( cartesian_product2 @ SX1 @ SX2 ) ) )
            | ~ ! [SX1: $i,SX2: $i] :
                  ( ( cartesian_product2 @ SX2 @ ( set_union2 @ SX0 @ SX1 ) )
                  = ( set_union2 @ ( cartesian_product2 @ SX2 @ SX0 ) @ ( cartesian_product2 @ SX2 @ SX1 ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[81]) ).

thf(85,plain,
    ! [SV17: $i] :
      ( ( ! [SY34: $i] :
            ( ( unordered_pair @ SV17 @ SY34 )
            = ( unordered_pair @ SY34 @ SV17 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[74]) ).

thf(86,plain,
    ! [SV18: $i] :
      ( ( ! [SY35: $i] :
            ( ( set_union2 @ SV18 @ SY35 )
            = ( set_union2 @ SY35 @ SV18 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[75]) ).

thf(87,plain,
    ! [SV19: $i] :
      ( ( ( empty @ SV19 )
        | ! [SY36: $i] :
            ~ ( empty @ ( set_union2 @ SV19 @ SY36 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[76]) ).

thf(88,plain,
    ! [SV20: $i] :
      ( ( ( empty @ SV20 )
        | ! [SY37: $i] :
            ~ ( empty @ ( set_union2 @ SY37 @ SV20 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[77]) ).

thf(89,plain,
    ! [SV21: $i] :
      ( ( ( set_union2 @ SV21 @ SV21 )
        = SV21 )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[78]) ).

thf(90,plain,
    ( ( empty @ sK4_A )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[80]) ).

thf(91,plain,
    ! [SV22: $i] :
      ( ( ! [SY38: $i] :
            ( ( unordered_pair @ SV22 @ SY38 )
            = ( set_union2 @ ( singleton @ SV22 ) @ ( singleton @ SY38 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[82]) ).

thf(92,plain,
    ( ( ( cartesian_product2 @ sK3_SY22 @ ( unordered_pair @ sK1_A @ sK2_SY20 ) )
      = ( set_union2 @ ( cartesian_product2 @ sK3_SY22 @ ( singleton @ sK1_A ) ) @ ( cartesian_product2 @ sK3_SY22 @ ( singleton @ sK2_SY20 ) ) ) )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[83]) ).

thf(93,plain,
    ! [SV23: $i] :
      ( ( ~ ( ~ ! [SY39: $i,SY40: $i] :
                  ( ( cartesian_product2 @ ( set_union2 @ SV23 @ SY39 ) @ SY40 )
                  = ( set_union2 @ ( cartesian_product2 @ SV23 @ SY40 ) @ ( cartesian_product2 @ SY39 @ SY40 ) ) )
            | ~ ! [SY41: $i,SY42: $i] :
                  ( ( cartesian_product2 @ SY42 @ ( set_union2 @ SV23 @ SY41 ) )
                  = ( set_union2 @ ( cartesian_product2 @ SY42 @ SV23 ) @ ( cartesian_product2 @ SY42 @ SY41 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[84]) ).

thf(94,plain,
    ! [SV24: $i,SV17: $i] :
      ( ( ( unordered_pair @ SV17 @ SV24 )
        = ( unordered_pair @ SV24 @ SV17 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[85]) ).

thf(95,plain,
    ! [SV25: $i,SV18: $i] :
      ( ( ( set_union2 @ SV18 @ SV25 )
        = ( set_union2 @ SV25 @ SV18 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[86]) ).

thf(96,plain,
    ! [SV19: $i] :
      ( ( ( empty @ SV19 )
        = $true )
      | ( ( ! [SY36: $i] :
              ~ ( empty @ ( set_union2 @ SV19 @ SY36 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[87]) ).

thf(97,plain,
    ! [SV20: $i] :
      ( ( ( empty @ SV20 )
        = $true )
      | ( ( ! [SY37: $i] :
              ~ ( empty @ ( set_union2 @ SY37 @ SV20 ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[88]) ).

thf(98,plain,
    ! [SV26: $i,SV22: $i] :
      ( ( ( unordered_pair @ SV22 @ SV26 )
        = ( set_union2 @ ( singleton @ SV22 ) @ ( singleton @ SV26 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[91]) ).

thf(99,plain,
    ! [SV23: $i] :
      ( ( ~ ! [SY39: $i,SY40: $i] :
              ( ( cartesian_product2 @ ( set_union2 @ SV23 @ SY39 ) @ SY40 )
              = ( set_union2 @ ( cartesian_product2 @ SV23 @ SY40 ) @ ( cartesian_product2 @ SY39 @ SY40 ) ) )
        | ~ ! [SY41: $i,SY42: $i] :
              ( ( cartesian_product2 @ SY42 @ ( set_union2 @ SV23 @ SY41 ) )
              = ( set_union2 @ ( cartesian_product2 @ SY42 @ SV23 ) @ ( cartesian_product2 @ SY42 @ SY41 ) ) ) )
      = $false ),
    inference(extcnf_not_pos,[status(thm)],[93]) ).

thf(100,plain,
    ! [SV27: $i,SV19: $i] :
      ( ( ( ~ ( empty @ ( set_union2 @ SV19 @ SV27 ) ) )
        = $true )
      | ( ( empty @ SV19 )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[96]) ).

thf(101,plain,
    ! [SV20: $i,SV28: $i] :
      ( ( ( ~ ( empty @ ( set_union2 @ SV28 @ SV20 ) ) )
        = $true )
      | ( ( empty @ SV20 )
        = $true ) ),
    inference(extcnf_forall_pos,[status(thm)],[97]) ).

thf(102,plain,
    ! [SV23: $i] :
      ( ( ~ ! [SY39: $i,SY40: $i] :
              ( ( cartesian_product2 @ ( set_union2 @ SV23 @ SY39 ) @ SY40 )
              = ( set_union2 @ ( cartesian_product2 @ SV23 @ SY40 ) @ ( cartesian_product2 @ SY39 @ SY40 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[99]) ).

thf(103,plain,
    ! [SV23: $i] :
      ( ( ~ ! [SY41: $i,SY42: $i] :
              ( ( cartesian_product2 @ SY42 @ ( set_union2 @ SV23 @ SY41 ) )
              = ( set_union2 @ ( cartesian_product2 @ SY42 @ SV23 ) @ ( cartesian_product2 @ SY42 @ SY41 ) ) ) )
      = $false ),
    inference(extcnf_or_neg,[status(thm)],[99]) ).

thf(104,plain,
    ! [SV27: $i,SV19: $i] :
      ( ( ( empty @ ( set_union2 @ SV19 @ SV27 ) )
        = $false )
      | ( ( empty @ SV19 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[100]) ).

thf(105,plain,
    ! [SV20: $i,SV28: $i] :
      ( ( ( empty @ ( set_union2 @ SV28 @ SV20 ) )
        = $false )
      | ( ( empty @ SV20 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[101]) ).

thf(106,plain,
    ! [SV23: $i] :
      ( ( ! [SY39: $i,SY40: $i] :
            ( ( cartesian_product2 @ ( set_union2 @ SV23 @ SY39 ) @ SY40 )
            = ( set_union2 @ ( cartesian_product2 @ SV23 @ SY40 ) @ ( cartesian_product2 @ SY39 @ SY40 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[102]) ).

thf(107,plain,
    ! [SV23: $i] :
      ( ( ! [SY41: $i,SY42: $i] :
            ( ( cartesian_product2 @ SY42 @ ( set_union2 @ SV23 @ SY41 ) )
            = ( set_union2 @ ( cartesian_product2 @ SY42 @ SV23 ) @ ( cartesian_product2 @ SY42 @ SY41 ) ) ) )
      = $true ),
    inference(extcnf_not_neg,[status(thm)],[103]) ).

thf(108,plain,
    ! [SV29: $i,SV23: $i] :
      ( ( ! [SY43: $i] :
            ( ( cartesian_product2 @ ( set_union2 @ SV23 @ SV29 ) @ SY43 )
            = ( set_union2 @ ( cartesian_product2 @ SV23 @ SY43 ) @ ( cartesian_product2 @ SV29 @ SY43 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[106]) ).

thf(109,plain,
    ! [SV30: $i,SV23: $i] :
      ( ( ! [SY44: $i] :
            ( ( cartesian_product2 @ SY44 @ ( set_union2 @ SV23 @ SV30 ) )
            = ( set_union2 @ ( cartesian_product2 @ SY44 @ SV23 ) @ ( cartesian_product2 @ SY44 @ SV30 ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[107]) ).

thf(110,plain,
    ! [SV31: $i,SV29: $i,SV23: $i] :
      ( ( ( cartesian_product2 @ ( set_union2 @ SV23 @ SV29 ) @ SV31 )
        = ( set_union2 @ ( cartesian_product2 @ SV23 @ SV31 ) @ ( cartesian_product2 @ SV29 @ SV31 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[108]) ).

thf(111,plain,
    ! [SV30: $i,SV23: $i,SV32: $i] :
      ( ( ( cartesian_product2 @ SV32 @ ( set_union2 @ SV23 @ SV30 ) )
        = ( set_union2 @ ( cartesian_product2 @ SV32 @ SV23 ) @ ( cartesian_product2 @ SV32 @ SV30 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[109]) ).

thf(112,plain,
    $false = $true,
    inference(fo_atp_e,[status(thm)],[79,111,110,105,104,98,95,94,92,90,89]) ).

thf(113,plain,
    $false,
    inference(solved_all_splits,[solved_all_splits(join,[])],[112,73]) ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.11/0.11  % Problem  : SET979+1 : TPTP v8.1.0. Released v3.2.0.
% 0.11/0.12  % Command  : leo --timeout %d --proofoutput 1 --foatp e --atp e=./eprover %s
% 0.12/0.33  % Computer : n013.cluster.edu
% 0.12/0.33  % Model    : x86_64 x86_64
% 0.12/0.33  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.12/0.33  % Memory   : 8042.1875MB
% 0.12/0.33  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.12/0.33  % CPULimit : 300
% 0.12/0.33  % WCLimit  : 600
% 0.12/0.33  % DateTime : Sat Jul  9 21:04:14 EDT 2022
% 0.12/0.33  % CPUTime  : 
% 0.12/0.34  
% 0.12/0.34   No.of.Axioms: 9
% 0.12/0.34  
% 0.12/0.34   Length.of.Defs: 0
% 0.12/0.34  
% 0.12/0.34   Contains.Choice.Funs: false
% 0.12/0.35  (rf:0,axioms:9,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:11,loop_count:0,foatp_calls:0,translation:fof_full)......
% 0.19/0.43  
% 0.19/0.43  ********************************
% 0.19/0.43  *   All subproblems solved!    *
% 0.19/0.43  ********************************
% 0.19/0.43  % SZS status Theorem for /export/starexec/sandbox2/benchmark/theBenchmark.p : (rf:0,axioms:9,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:112,loop_count:0,foatp_calls:1,translation:fof_full)
% 0.19/0.43  
% 0.19/0.43  %**** Beginning of derivation protocol ****
% 0.19/0.43  % SZS output start CNFRefutation
% See solution above
% 0.19/0.43  
% 0.19/0.43  %**** End of derivation protocol ****
% 0.19/0.43  %**** no. of clauses in derivation: 113 ****
% 0.19/0.43  %**** clause counter: 112 ****
% 0.19/0.43  
% 0.19/0.43  % SZS status Theorem for /export/starexec/sandbox2/benchmark/theBenchmark.p : (rf:0,axioms:9,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:112,loop_count:0,foatp_calls:1,translation:fof_full)
%------------------------------------------------------------------------------