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LEO-II---2.3.1.THM-CRf.s

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%------------------------------------------------------------------------------
% File     : LEO-II---2.3.1
% Problem  : SEU660^2 : TPTP v9.3.1. Released v3.7.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : leo --cores 7 --timeout 300 --proofoutput 1 --foatp e --atp e=/export/starexec/sandbox2/solver/bin/eprover /export/starexec/sandbox2/benchmark/theBenchmark.p

% Computer : n014.cluster.edu
% Model    : x86_64 x86_64
% CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 2.10GHz
% Memory   : 8046.5625MB
% OS       : Linux 6.8.0-71-generic
% CPULimit : 300s
% WCLimit  : 300s
% DateTime : Wed Oct  7 10:46:04 AM UTC 2026

% Result   : Theorem 0.10s 0.18s
% Output   : CNFRefutation 0.10s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :   24
%            Number of leaves      :    3
% Syntax   : Number of formulae    :   52 (  31 unt;   0 typ;   2 def)
%            Number of atoms       :  281 ( 114 equ;   0 cnn)
%            Maximal formula atoms :    4 (   5 avg)
%            Number of connectives :  686 ( 141   ~;  61   |;   8   &; 456   @)
%                                         (   0 <=>;  20  =>;   0  <=;   0 <~>)
%            Maximal formula depth :   12 (   3 avg)
%            Number of types       :    2 (   0 usr)
%            Number of type conns  :    0 (   0   >;   0   *;   0   +;   0  <<)
%            Number of symbols     :   14 (  11 usr;   8 con; 0-3 aty)
%            Number of variables   :  188 (   0   ^; 180   !;   8   ?; 188   :)

% Comments : 
%------------------------------------------------------------------------------
thf(tp_cartprod,type,
    cartprod: $i > $i > $i ).

thf(tp_cartprodmempair1,type,
    cartprodmempair1: $o ).

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

thf(tp_kpair,type,
    kpair: $i > $i > $i ).

thf(tp_sK1_SX0,type,
    sK1_SX0: $i ).

thf(tp_sK2_SY29,type,
    sK2_SY29: $i ).

thf(tp_sK3_SY35,type,
    sK3_SY35: $i ).

thf(tp_sK4_SY37,type,
    sK4_SY37: $i ).

thf(tp_sK5_SY33,type,
    sK5_SY33: $i > $i > $i > $i ).

thf(tp_sK6_SY38,type,
    sK6_SY38: $i > $i > $i > $i ).

thf(tp_setukpairinjR,type,
    setukpairinjR: $o ).

thf(cartprodmempair1,definition,
    ( cartprodmempair1
    = ( ! [A: $i,B: $i,Xu: $i] :
          ( ( in @ Xu @ ( cartprod @ A @ B ) )
         => ? [Xx: $i] :
              ( ( in @ Xx @ A )
              & ? [Xy: $i] :
                  ( ( in @ Xy @ B )
                  & ( Xu
                    = ( kpair @ Xx @ Xy ) ) ) ) ) ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',cartprodmempair1) ).

thf(setukpairinjR,definition,
    ( setukpairinjR
    = ( ! [Xx: $i,Xy: $i,Xz: $i,Xu: $i] :
          ( ( ( kpair @ Xx @ Xy )
            = ( kpair @ Xz @ Xu ) )
         => ( Xy = Xu ) ) ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',setukpairinjR) ).

thf(1,conjecture,
    ( cartprodmempair1
   => ( setukpairinjR
     => ! [A: $i,B: $i,Xx: $i,Xy: $i] :
          ( ( in @ ( kpair @ Xx @ Xy ) @ ( cartprod @ A @ B ) )
         => ( in @ Xy @ B ) ) ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',cartprodpairmemER) ).

thf(2,negated_conjecture,
    ( ( cartprodmempair1
     => ( setukpairinjR
       => ! [A: $i,B: $i,Xx: $i,Xy: $i] :
            ( ( in @ ( kpair @ Xx @ Xy ) @ ( cartprod @ A @ B ) )
           => ( in @ Xy @ B ) ) ) )
    = $false ),
    inference(negate_conjecture,[status(cth)],[1]) ).

thf(3,plain,
    ( ( ! [A: $i,B: $i,Xu: $i] :
          ( ( in @ Xu @ ( cartprod @ A @ B ) )
         => ? [Xx: $i] :
              ( ( in @ Xx @ A )
              & ? [Xy: $i] :
                  ( ( in @ Xy @ B )
                  & ( Xu
                    = ( kpair @ Xx @ Xy ) ) ) ) )
     => ( ! [Xx: $i,Xy: $i,Xz: $i,Xu: $i] :
            ( ( ( kpair @ Xx @ Xy )
              = ( kpair @ Xz @ Xu ) )
           => ( Xy = Xu ) )
       => ! [A: $i,B: $i,Xx: $i,Xy: $i] :
            ( ( in @ ( kpair @ Xx @ Xy ) @ ( cartprod @ A @ B ) )
           => ( in @ Xy @ B ) ) ) )
    = $false ),
    inference(unfold_def,[status(thm)],[2,cartprodmempair1,setukpairinjR]) ).

thf(4,plain,
    ( ( ! [A: $i,B: $i,Xu: $i] :
          ( ( in @ Xu @ ( cartprod @ A @ B ) )
         => ? [Xx: $i] :
              ( ( in @ Xx @ A )
              & ? [Xy: $i] :
                  ( ( in @ Xy @ B )
                  & ( Xu
                    = ( kpair @ Xx @ Xy ) ) ) ) ) )
    = $true ),
    inference(standard_cnf,[status(thm)],[3]) ).

thf(5,plain,
    ( ( ! [Xx: $i,Xy: $i,Xz: $i,Xu: $i] :
          ( ( ( kpair @ Xx @ Xy )
            = ( kpair @ Xz @ Xu ) )
         => ( Xy = Xu ) ) )
    = $true ),
    inference(standard_cnf,[status(thm)],[3]) ).

thf(6,plain,
    ( ( ! [A: $i,B: $i,Xx: $i,Xy: $i] :
          ( ( in @ ( kpair @ Xx @ Xy ) @ ( cartprod @ A @ B ) )
         => ( in @ Xy @ B ) ) )
    = $false ),
    inference(standard_cnf,[status(thm)],[3]) ).

thf(7,plain,
    ( ( ~ ! [A: $i,B: $i,Xx: $i,Xy: $i] :
            ( ( in @ ( kpair @ Xx @ Xy ) @ ( cartprod @ A @ B ) )
           => ( in @ Xy @ B ) ) )
    = $true ),
    inference(polarity_switch,[status(thm)],[6]) ).

thf(8,plain,
    ( ( ! [Xx: $i,Xy: $i,Xz: $i,Xu: $i] :
          ( ( ( kpair @ Xx @ Xy )
            = ( kpair @ Xz @ Xu ) )
         => ( Xy = Xu ) ) )
    = $true ),
    inference(copy,[status(thm)],[5]) ).

thf(9,plain,
    ( ( ! [A: $i,B: $i,Xu: $i] :
          ( ( in @ Xu @ ( cartprod @ A @ B ) )
         => ? [Xx: $i] :
              ( ( in @ Xx @ A )
              & ? [Xy: $i] :
                  ( ( in @ Xy @ B )
                  & ( Xu
                    = ( kpair @ Xx @ Xy ) ) ) ) ) )
    = $true ),
    inference(copy,[status(thm)],[4]) ).

thf(10,plain,
    ( ( ~ ! [A: $i,B: $i,Xx: $i,Xy: $i] :
            ( ( in @ ( kpair @ Xx @ Xy ) @ ( cartprod @ A @ B ) )
           => ( in @ Xy @ B ) ) )
    = $true ),
    inference(copy,[status(thm)],[7]) ).

thf(11,plain,
    ( ( ! [SX0: $i,SX1: $i,SX2: $i,SX3: $i] :
          ( ( ( kpair @ SX0 @ SX1 )
           != ( kpair @ SX2 @ SX3 ) )
          | ( SX1 = SX3 ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[8,cartprodmempair1,setukpairinjR]) ).

thf(12,plain,
    ( ( ! [SX0: $i,SX1: $i,SX2: $i] :
          ( ~ ( in @ SX2 @ ( cartprod @ SX0 @ SX1 ) )
          | ~ ! [SX3: $i] :
                ~ ~ ( ~ ( in @ SX3 @ SX0 )
                    | ~ ~ ! [SX4: $i] :
                            ~ ~ ( ~ ( in @ SX4 @ SX1 )
                                | ( SX2
                                 != ( kpair @ SX3 @ SX4 ) ) ) ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[9,cartprodmempair1,setukpairinjR]) ).

thf(13,plain,
    ( ( ~ ! [SX0: $i,SX1: $i,SX2: $i,SX3: $i] :
            ( ~ ( in @ ( kpair @ SX2 @ SX3 ) @ ( cartprod @ SX0 @ SX1 ) )
            | ( in @ SX3 @ SX1 ) ) )
    = $true ),
    inference(unfold_def,[status(thm)],[10,cartprodmempair1,setukpairinjR]) ).

thf(14,plain,
    ! [SV1: $i] :
      ( ( ! [SY17: $i,SY18: $i,SY19: $i] :
            ( ( ( kpair @ SV1 @ SY17 )
             != ( kpair @ SY18 @ SY19 ) )
            | ( SY17 = SY19 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[11]) ).

thf(15,plain,
    ! [SV2: $i] :
      ( ( ! [SY20: $i,SY21: $i] :
            ( ~ ( in @ SY21 @ ( cartprod @ SV2 @ SY20 ) )
            | ~ ! [SY22: $i] :
                  ~ ~ ( ~ ( in @ SY22 @ SV2 )
                      | ~ ~ ! [SX4: $i] :
                              ~ ~ ( ~ ( in @ SX4 @ SY20 )
                                  | ( SY21
                                   != ( kpair @ SY22 @ SX4 ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[12]) ).

thf(16,plain,
    ( ( ! [SX0: $i,SX1: $i,SX2: $i,SX3: $i] :
          ( ~ ( in @ ( kpair @ SX2 @ SX3 ) @ ( cartprod @ SX0 @ SX1 ) )
          | ( in @ SX3 @ SX1 ) ) )
    = $false ),
    inference(extcnf_not_pos,[status(thm)],[13]) ).

thf(17,plain,
    ! [SV3: $i,SV1: $i] :
      ( ( ! [SY24: $i,SY25: $i] :
            ( ( ( kpair @ SV1 @ SV3 )
             != ( kpair @ SY24 @ SY25 ) )
            | ( SV3 = SY25 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[14]) ).

thf(18,plain,
    ! [SV4: $i,SV2: $i] :
      ( ( ! [SY26: $i] :
            ( ~ ( in @ SY26 @ ( cartprod @ SV2 @ SV4 ) )
            | ~ ! [SY27: $i] :
                  ~ ~ ( ~ ( in @ SY27 @ SV2 )
                      | ~ ~ ! [SY28: $i] :
                              ~ ~ ( ~ ( in @ SY28 @ SV4 )
                                  | ( SY26
                                   != ( kpair @ SY27 @ SY28 ) ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[15]) ).

thf(19,plain,
    ( ( ! [SY29: $i,SY30: $i,SY31: $i] :
          ( ~ ( in @ ( kpair @ SY30 @ SY31 ) @ ( cartprod @ sK1_SX0 @ SY29 ) )
          | ( in @ SY31 @ SY29 ) ) )
    = $false ),
    inference(extcnf_forall_neg,[status(esa)],[16]) ).

thf(20,plain,
    ! [SV5: $i,SV3: $i,SV1: $i] :
      ( ( ! [SY32: $i] :
            ( ( ( kpair @ SV1 @ SV3 )
             != ( kpair @ SV5 @ SY32 ) )
            | ( SV3 = SY32 ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[17]) ).

thf(21,plain,
    ! [SV4: $i,SV2: $i,SV6: $i] :
      ( ( ~ ( in @ SV6 @ ( cartprod @ SV2 @ SV4 ) )
        | ~ ! [SY33: $i] :
              ~ ~ ( ~ ( in @ SY33 @ SV2 )
                  | ~ ~ ! [SY34: $i] :
                          ~ ~ ( ~ ( in @ SY34 @ SV4 )
                              | ( SV6
                               != ( kpair @ SY33 @ SY34 ) ) ) ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[18]) ).

thf(22,plain,
    ( ( ! [SY35: $i,SY36: $i] :
          ( ~ ( in @ ( kpair @ SY35 @ SY36 ) @ ( cartprod @ sK1_SX0 @ sK2_SY29 ) )
          | ( in @ SY36 @ sK2_SY29 ) ) )
    = $false ),
    inference(extcnf_forall_neg,[status(esa)],[19]) ).

thf(23,plain,
    ! [SV7: $i,SV5: $i,SV3: $i,SV1: $i] :
      ( ( ( ( kpair @ SV1 @ SV3 )
         != ( kpair @ SV5 @ SV7 ) )
        | ( SV3 = SV7 ) )
      = $true ),
    inference(extcnf_forall_pos,[status(thm)],[20]) ).

thf(24,plain,
    ! [SV4: $i,SV2: $i,SV6: $i] :
      ( ( ( ~ ( in @ SV6 @ ( cartprod @ SV2 @ SV4 ) ) )
        = $true )
      | ( ( ~ ! [SY33: $i] :
                ~ ~ ( ~ ( in @ SY33 @ SV2 )
                    | ~ ~ ! [SY34: $i] :
                            ~ ~ ( ~ ( in @ SY34 @ SV4 )
                                | ( SV6
                                 != ( kpair @ SY33 @ SY34 ) ) ) ) )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[21]) ).

thf(25,plain,
    ( ( ! [SY37: $i] :
          ( ~ ( in @ ( kpair @ sK3_SY35 @ SY37 ) @ ( cartprod @ sK1_SX0 @ sK2_SY29 ) )
          | ( in @ SY37 @ sK2_SY29 ) ) )
    = $false ),
    inference(extcnf_forall_neg,[status(esa)],[22]) ).

thf(26,plain,
    ! [SV7: $i,SV5: $i,SV3: $i,SV1: $i] :
      ( ( ( ( kpair @ SV1 @ SV3 )
         != ( kpair @ SV5 @ SV7 ) )
        = $true )
      | ( ( SV3 = SV7 )
        = $true ) ),
    inference(extcnf_or_pos,[status(thm)],[23]) ).

thf(27,plain,
    ! [SV4: $i,SV2: $i,SV6: $i] :
      ( ( ( in @ SV6 @ ( cartprod @ SV2 @ SV4 ) )
        = $false )
      | ( ( ~ ! [SY33: $i] :
                ~ ~ ( ~ ( in @ SY33 @ SV2 )
                    | ~ ~ ! [SY34: $i] :
                            ~ ~ ( ~ ( in @ SY34 @ SV4 )
                                | ( SV6
                                 != ( kpair @ SY33 @ SY34 ) ) ) ) )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[24]) ).

thf(28,plain,
    ( ( ~ ( in @ ( kpair @ sK3_SY35 @ sK4_SY37 ) @ ( cartprod @ sK1_SX0 @ sK2_SY29 ) )
      | ( in @ sK4_SY37 @ sK2_SY29 ) )
    = $false ),
    inference(extcnf_forall_neg,[status(esa)],[25]) ).

thf(29,plain,
    ! [SV7: $i,SV5: $i,SV3: $i,SV1: $i] :
      ( ( ( ( kpair @ SV1 @ SV3 )
          = ( kpair @ SV5 @ SV7 ) )
        = $false )
      | ( ( SV3 = SV7 )
        = $true ) ),
    inference(extcnf_not_pos,[status(thm)],[26]) ).

thf(30,plain,
    ! [SV6: $i,SV4: $i,SV2: $i] :
      ( ( ( ! [SY33: $i] :
              ~ ~ ( ~ ( in @ SY33 @ SV2 )
                  | ~ ~ ! [SY34: $i] :
                          ~ ~ ( ~ ( in @ SY34 @ SV4 )
                              | ( SV6
                               != ( kpair @ SY33 @ SY34 ) ) ) ) )
        = $false )
      | ( ( in @ SV6 @ ( cartprod @ SV2 @ SV4 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[27]) ).

thf(31,plain,
    ( ( ~ ( in @ ( kpair @ sK3_SY35 @ sK4_SY37 ) @ ( cartprod @ sK1_SX0 @ sK2_SY29 ) ) )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[28]) ).

thf(32,plain,
    ( ( in @ sK4_SY37 @ sK2_SY29 )
    = $false ),
    inference(extcnf_or_neg,[status(thm)],[28]) ).

thf(33,plain,
    ! [SV2: $i,SV4: $i,SV6: $i] :
      ( ( ( ~ ~ ( ~ ( in @ ( sK5_SY33 @ SV6 @ SV4 @ SV2 ) @ SV2 )
                | ~ ~ ! [SY38: $i] :
                        ~ ~ ( ~ ( in @ SY38 @ SV4 )
                            | ( SV6
                             != ( kpair @ ( sK5_SY33 @ SV6 @ SV4 @ SV2 ) @ SY38 ) ) ) ) )
        = $false )
      | ( ( in @ SV6 @ ( cartprod @ SV2 @ SV4 ) )
        = $false ) ),
    inference(extcnf_forall_neg,[status(esa)],[30]) ).

thf(34,plain,
    ( ( in @ ( kpair @ sK3_SY35 @ sK4_SY37 ) @ ( cartprod @ sK1_SX0 @ sK2_SY29 ) )
    = $true ),
    inference(extcnf_not_neg,[status(thm)],[31]) ).

thf(35,plain,
    ! [SV2: $i,SV4: $i,SV6: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK5_SY33 @ SV6 @ SV4 @ SV2 ) @ SV2 )
              | ~ ~ ! [SY38: $i] :
                      ~ ~ ( ~ ( in @ SY38 @ SV4 )
                          | ( SV6
                           != ( kpair @ ( sK5_SY33 @ SV6 @ SV4 @ SV2 ) @ SY38 ) ) ) ) )
        = $true )
      | ( ( in @ SV6 @ ( cartprod @ SV2 @ SV4 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[33]) ).

thf(36,plain,
    ! [SV2: $i,SV4: $i,SV6: $i] :
      ( ( ( ~ ( in @ ( sK5_SY33 @ SV6 @ SV4 @ SV2 ) @ SV2 )
          | ~ ~ ! [SY38: $i] :
                  ~ ~ ( ~ ( in @ SY38 @ SV4 )
                      | ( SV6
                       != ( kpair @ ( sK5_SY33 @ SV6 @ SV4 @ SV2 ) @ SY38 ) ) ) )
        = $false )
      | ( ( in @ SV6 @ ( cartprod @ SV2 @ SV4 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[35]) ).

thf(37,plain,
    ! [SV2: $i,SV4: $i,SV6: $i] :
      ( ( ( ~ ( in @ ( sK5_SY33 @ SV6 @ SV4 @ SV2 ) @ SV2 ) )
        = $false )
      | ( ( in @ SV6 @ ( cartprod @ SV2 @ SV4 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[36]) ).

thf(38,plain,
    ! [SV2: $i,SV6: $i,SV4: $i] :
      ( ( ( ~ ~ ! [SY38: $i] :
                  ~ ~ ( ~ ( in @ SY38 @ SV4 )
                      | ( SV6
                       != ( kpair @ ( sK5_SY33 @ SV6 @ SV4 @ SV2 ) @ SY38 ) ) ) )
        = $false )
      | ( ( in @ SV6 @ ( cartprod @ SV2 @ SV4 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[36]) ).

thf(39,plain,
    ! [SV2: $i,SV4: $i,SV6: $i] :
      ( ( ( in @ ( sK5_SY33 @ SV6 @ SV4 @ SV2 ) @ SV2 )
        = $true )
      | ( ( in @ SV6 @ ( cartprod @ SV2 @ SV4 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[37]) ).

thf(40,plain,
    ! [SV2: $i,SV6: $i,SV4: $i] :
      ( ( ( ~ ! [SY38: $i] :
                ~ ~ ( ~ ( in @ SY38 @ SV4 )
                    | ( SV6
                     != ( kpair @ ( sK5_SY33 @ SV6 @ SV4 @ SV2 ) @ SY38 ) ) ) )
        = $true )
      | ( ( in @ SV6 @ ( cartprod @ SV2 @ SV4 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[38]) ).

thf(41,plain,
    ! [SV2: $i,SV6: $i,SV4: $i] :
      ( ( ( ! [SY38: $i] :
              ~ ~ ( ~ ( in @ SY38 @ SV4 )
                  | ( SV6
                   != ( kpair @ ( sK5_SY33 @ SV6 @ SV4 @ SV2 ) @ SY38 ) ) ) )
        = $false )
      | ( ( in @ SV6 @ ( cartprod @ SV2 @ SV4 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[40]) ).

thf(42,plain,
    ! [SV4: $i,SV6: $i,SV2: $i] :
      ( ( ( ~ ~ ( ~ ( in @ ( sK6_SY38 @ SV2 @ SV6 @ SV4 ) @ SV4 )
                | ( SV6
                 != ( kpair @ ( sK5_SY33 @ SV6 @ SV4 @ SV2 ) @ ( sK6_SY38 @ SV2 @ SV6 @ SV4 ) ) ) ) )
        = $false )
      | ( ( in @ SV6 @ ( cartprod @ SV2 @ SV4 ) )
        = $false ) ),
    inference(extcnf_forall_neg,[status(esa)],[41]) ).

thf(43,plain,
    ! [SV4: $i,SV6: $i,SV2: $i] :
      ( ( ( ~ ( ~ ( in @ ( sK6_SY38 @ SV2 @ SV6 @ SV4 ) @ SV4 )
              | ( SV6
               != ( kpair @ ( sK5_SY33 @ SV6 @ SV4 @ SV2 ) @ ( sK6_SY38 @ SV2 @ SV6 @ SV4 ) ) ) ) )
        = $true )
      | ( ( in @ SV6 @ ( cartprod @ SV2 @ SV4 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[42]) ).

thf(44,plain,
    ! [SV4: $i,SV6: $i,SV2: $i] :
      ( ( ( ~ ( in @ ( sK6_SY38 @ SV2 @ SV6 @ SV4 ) @ SV4 )
          | ( SV6
           != ( kpair @ ( sK5_SY33 @ SV6 @ SV4 @ SV2 ) @ ( sK6_SY38 @ SV2 @ SV6 @ SV4 ) ) ) )
        = $false )
      | ( ( in @ SV6 @ ( cartprod @ SV2 @ SV4 ) )
        = $false ) ),
    inference(extcnf_not_pos,[status(thm)],[43]) ).

thf(45,plain,
    ! [SV4: $i,SV6: $i,SV2: $i] :
      ( ( ( ~ ( in @ ( sK6_SY38 @ SV2 @ SV6 @ SV4 ) @ SV4 ) )
        = $false )
      | ( ( in @ SV6 @ ( cartprod @ SV2 @ SV4 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[44]) ).

thf(46,plain,
    ! [SV2: $i,SV4: $i,SV6: $i] :
      ( ( ( SV6
         != ( kpair @ ( sK5_SY33 @ SV6 @ SV4 @ SV2 ) @ ( sK6_SY38 @ SV2 @ SV6 @ SV4 ) ) )
        = $false )
      | ( ( in @ SV6 @ ( cartprod @ SV2 @ SV4 ) )
        = $false ) ),
    inference(extcnf_or_neg,[status(thm)],[44]) ).

thf(47,plain,
    ! [SV4: $i,SV6: $i,SV2: $i] :
      ( ( ( in @ ( sK6_SY38 @ SV2 @ SV6 @ SV4 ) @ SV4 )
        = $true )
      | ( ( in @ SV6 @ ( cartprod @ SV2 @ SV4 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[45]) ).

thf(48,plain,
    ! [SV2: $i,SV4: $i,SV6: $i] :
      ( ( ( SV6
          = ( kpair @ ( sK5_SY33 @ SV6 @ SV4 @ SV2 ) @ ( sK6_SY38 @ SV2 @ SV6 @ SV4 ) ) )
        = $true )
      | ( ( in @ SV6 @ ( cartprod @ SV2 @ SV4 ) )
        = $false ) ),
    inference(extcnf_not_neg,[status(thm)],[46]) ).

thf(49,plain,
    $false = $true,
    inference(fo_atp_e,[status(thm)],[29,48,47,39,34,32]) ).

thf(50,plain,
    $false,
    inference(solved_all_splits,[solved_all_splits(join,[])],[49]) ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.02  % Problem  : SEU660^2 : TPTP v9.3.1. Released v3.7.0.
% 0.00/0.03  % Command  : leo --cores 7 --timeout 300 --proofoutput 1 --foatp e --atp e=/export/starexec/sandbox2/solver/bin/eprover /export/starexec/sandbox2/benchmark/theBenchmark.p
% 0.10/0.15  % Computer : n014.cluster.edu
% 0.10/0.15  % Model    : x86_64 x86_64
% 0.10/0.15  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.10/0.15  % Memory   : 8046.5625MB
% 0.10/0.15  % OS       : Linux 6.8.0-71-generic
% 0.10/0.15  % CPULimit : 300
% 0.10/0.15  % WCLimit  : 300
% 0.10/0.15  % DateTime : Tue Oct  6 15:30:41 UTC 2026
% 0.10/0.15  % CPUTime  : 
% 0.10/0.15  Running leo --cores 7 --timeout 300 --proofoutput 1 --foatp e --atp e=/export/starexec/sandbox2/solver/bin/eprover /export/starexec/sandbox2/benchmark/theBenchmark.p
% 0.10/0.18  
% 0.10/0.18   No.of.Axioms: 0
% 0.10/0.18  
% 0.10/0.18   Length.of.Defs: 469
% 0.10/0.18  
% 0.10/0.18   Contains.Choice.Funs: false
% 0.10/0.18  .
% 0.10/0.18  
% 0.10/0.18  ********************************
% 0.10/0.18  *   All subproblems solved!    *
% 0.10/0.18  ********************************
% 0.10/0.18  % SZS status Theorem for /export/starexec/sandbox2/benchmark/theBenchmark.p : (rf:0,axioms:2,ps:3,u:6,ude:true,rLeibEQ:true,rAndEQ:true,use_choice:true,use_extuni:true,use_extcnf_combined:false,expand_extuni:false,foatp:e,atp_timeout:25,atp_calls_frequency:5,ordering:none,proof_output:1,protocol_output:false,clause_count:49,loop_count:0,foatp_calls:1,translation:fof_full)
% 0.10/0.18  
% 0.10/0.18  %**** Beginning of derivation protocol ****
% 0.10/0.18  % SZS output start CNFRefutation
% See solution above
% 0.10/0.18  
% 0.10/0.18  %**** End of derivation protocol ****
% 0.10/0.18  %**** no. of clauses in derivation: 50 ****
% 0.10/0.18  %**** clause counter: 49 ****
% 0.10/0.18  
% 0.10/0.18  % SZS status Theorem for /export/starexec/sandbox2/benchmark/theBenchmark.p : (rf:0,axioms:2,ps:3,u:6,ude:true,rLeibEQ:true,rAndEQ:true,use_choice:true,use_extuni:true,use_extcnf_combined:false,expand_extuni:false,foatp:e,atp_timeout:25,atp_calls_frequency:5,ordering:none,proof_output:1,protocol_output:false,clause_count:49,loop_count:0,foatp_calls:1,translation:fof_full)
%------------------------------------------------------------------------------