TSTP Solution File: SET978+1 by Metis---2.4

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%------------------------------------------------------------------------------
% File     : Metis---2.4
% Problem  : SET978+1 : TPTP v8.1.0. Released v3.2.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : metis --show proof --show saturation %s

% Computer : n016.cluster.edu
% Model    : x86_64 x86_64
% CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 2.10GHz
% Memory   : 8042.1875MB
% OS       : Linux 3.10.0-693.el7.x86_64
% CPULimit : 300s
% WCLimit  : 600s
% DateTime : Tue Jul 19 03:38:44 EDT 2022

% Result   : Theorem 0.22s 0.39s
% Output   : CNFRefutation 0.22s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :   10
%            Number of leaves      :    3
% Syntax   : Number of formulae    :   46 (  13 unt;   0 def)
%            Number of atoms       :   93 (  26 equ)
%            Maximal formula atoms :    4 (   2 avg)
%            Number of connectives :   90 (  43   ~;  25   |;  15   &)
%                                         (   0 <=>;   7  =>;   0  <=;   0 <~>)
%            Maximal formula depth :    9 (   4 avg)
%            Maximal term depth    :    3 (   1 avg)
%            Number of predicates  :    4 (   1 usr;   1 prp; 0-2 aty)
%            Number of functors    :   10 (  10 usr;   8 con; 0-2 aty)
%            Number of variables   :  106 (  12 sgn  66   !;  12   ?)

% Comments : 
%------------------------------------------------------------------------------
fof(t127_zfmisc_1,axiom,
    ! [A,B,C,D] :
      ( ( disjoint(A,B)
        | disjoint(C,D) )
     => disjoint(cartesian_product2(A,C),cartesian_product2(B,D)) ) ).

fof(t131_zfmisc_1,conjecture,
    ! [A,B,C,D] :
      ( A != B
     => ( disjoint(cartesian_product2(singleton(A),C),cartesian_product2(singleton(B),D))
        & disjoint(cartesian_product2(C,singleton(A)),cartesian_product2(D,singleton(B))) ) ) ).

fof(t17_zfmisc_1,axiom,
    ! [A,B] :
      ( A != B
     => disjoint(singleton(A),singleton(B)) ) ).

fof(subgoal_0,plain,
    ! [A,B,C,D] :
      ( A != B
     => disjoint(cartesian_product2(singleton(A),C),cartesian_product2(singleton(B),D)) ),
    inference(strip,[],[t131_zfmisc_1]) ).

fof(subgoal_1,plain,
    ! [A,B,C,D] :
      ( ( A != B
        & disjoint(cartesian_product2(singleton(A),C),cartesian_product2(singleton(B),D)) )
     => disjoint(cartesian_product2(C,singleton(A)),cartesian_product2(D,singleton(B))) ),
    inference(strip,[],[t131_zfmisc_1]) ).

fof(negate_0_0,plain,
    ~ ! [A,B,C,D] :
        ( A != B
       => disjoint(cartesian_product2(singleton(A),C),cartesian_product2(singleton(B),D)) ),
    inference(negate,[],[subgoal_0]) ).

fof(normalize_0_0,plain,
    ? [A,B] :
      ( A != B
      & ? [C,D] : ~ disjoint(cartesian_product2(singleton(A),C),cartesian_product2(singleton(B),D)) ),
    inference(canonicalize,[],[negate_0_0]) ).

fof(normalize_0_1,plain,
    ( skolemFOFtoCNF_A_2 != skolemFOFtoCNF_B
    & ? [C,D] : ~ disjoint(cartesian_product2(singleton(skolemFOFtoCNF_A_2),C),cartesian_product2(singleton(skolemFOFtoCNF_B),D)) ),
    inference(skolemize,[],[normalize_0_0]) ).

fof(normalize_0_2,plain,
    ? [C,D] : ~ disjoint(cartesian_product2(singleton(skolemFOFtoCNF_A_2),C),cartesian_product2(singleton(skolemFOFtoCNF_B),D)),
    inference(conjunct,[],[normalize_0_1]) ).

fof(normalize_0_3,plain,
    ~ disjoint(cartesian_product2(singleton(skolemFOFtoCNF_A_2),skolemFOFtoCNF_C),cartesian_product2(singleton(skolemFOFtoCNF_B),skolemFOFtoCNF_D)),
    inference(skolemize,[],[normalize_0_2]) ).

fof(normalize_0_4,plain,
    ! [A,B] :
      ( A = B
      | disjoint(singleton(A),singleton(B)) ),
    inference(canonicalize,[],[t17_zfmisc_1]) ).

fof(normalize_0_5,plain,
    ! [A,B] :
      ( A = B
      | disjoint(singleton(A),singleton(B)) ),
    inference(specialize,[],[normalize_0_4]) ).

fof(normalize_0_6,plain,
    ! [A,B,C,D] :
      ( disjoint(cartesian_product2(A,C),cartesian_product2(B,D))
      | ( ~ disjoint(A,B)
        & ~ disjoint(C,D) ) ),
    inference(canonicalize,[],[t127_zfmisc_1]) ).

fof(normalize_0_7,plain,
    ! [A,B,C,D] :
      ( disjoint(cartesian_product2(A,C),cartesian_product2(B,D))
      | ( ~ disjoint(A,B)
        & ~ disjoint(C,D) ) ),
    inference(specialize,[],[normalize_0_6]) ).

fof(normalize_0_8,plain,
    ! [A,B,C,D] :
      ( ( ~ disjoint(A,B)
        | disjoint(cartesian_product2(A,C),cartesian_product2(B,D)) )
      & ( ~ disjoint(C,D)
        | disjoint(cartesian_product2(A,C),cartesian_product2(B,D)) ) ),
    inference(clausify,[],[normalize_0_7]) ).

fof(normalize_0_9,plain,
    ! [A,B,C,D] :
      ( ~ disjoint(A,B)
      | disjoint(cartesian_product2(A,C),cartesian_product2(B,D)) ),
    inference(conjunct,[],[normalize_0_8]) ).

fof(normalize_0_10,plain,
    skolemFOFtoCNF_A_2 != skolemFOFtoCNF_B,
    inference(conjunct,[],[normalize_0_1]) ).

cnf(refute_0_0,plain,
    ~ disjoint(cartesian_product2(singleton(skolemFOFtoCNF_A_2),skolemFOFtoCNF_C),cartesian_product2(singleton(skolemFOFtoCNF_B),skolemFOFtoCNF_D)),
    inference(canonicalize,[],[normalize_0_3]) ).

cnf(refute_0_1,plain,
    ( A = B
    | disjoint(singleton(A),singleton(B)) ),
    inference(canonicalize,[],[normalize_0_5]) ).

cnf(refute_0_2,plain,
    ( ~ disjoint(A,B)
    | disjoint(cartesian_product2(A,C),cartesian_product2(B,D)) ),
    inference(canonicalize,[],[normalize_0_9]) ).

cnf(refute_0_3,plain,
    ( ~ disjoint(singleton(A),singleton(B))
    | disjoint(cartesian_product2(singleton(A),X_6),cartesian_product2(singleton(B),X_7)) ),
    inference(subst,[],[refute_0_2:[bind(A,$fot(singleton(A))),bind(B,$fot(singleton(B))),bind(C,$fot(X_6)),bind(D,$fot(X_7))]]) ).

cnf(refute_0_4,plain,
    ( A = B
    | disjoint(cartesian_product2(singleton(A),X_6),cartesian_product2(singleton(B),X_7)) ),
    inference(resolve,[$cnf( disjoint(singleton(A),singleton(B)) )],[refute_0_1,refute_0_3]) ).

cnf(refute_0_5,plain,
    ( skolemFOFtoCNF_A_2 = skolemFOFtoCNF_B
    | disjoint(cartesian_product2(singleton(skolemFOFtoCNF_A_2),skolemFOFtoCNF_C),cartesian_product2(singleton(skolemFOFtoCNF_B),skolemFOFtoCNF_D)) ),
    inference(subst,[],[refute_0_4:[bind(A,$fot(skolemFOFtoCNF_A_2)),bind(B,$fot(skolemFOFtoCNF_B)),bind(X_6,$fot(skolemFOFtoCNF_C)),bind(X_7,$fot(skolemFOFtoCNF_D))]]) ).

cnf(refute_0_6,plain,
    skolemFOFtoCNF_A_2 = skolemFOFtoCNF_B,
    inference(resolve,[$cnf( disjoint(cartesian_product2(singleton(skolemFOFtoCNF_A_2),skolemFOFtoCNF_C),cartesian_product2(singleton(skolemFOFtoCNF_B),skolemFOFtoCNF_D)) )],[refute_0_5,refute_0_0]) ).

cnf(refute_0_7,plain,
    skolemFOFtoCNF_A_2 != skolemFOFtoCNF_B,
    inference(canonicalize,[],[normalize_0_10]) ).

cnf(refute_0_8,plain,
    $false,
    inference(resolve,[$cnf( $equal(skolemFOFtoCNF_A_2,skolemFOFtoCNF_B) )],[refute_0_6,refute_0_7]) ).

fof(negate_1_0,plain,
    ~ ! [A,B,C,D] :
        ( ( A != B
          & disjoint(cartesian_product2(singleton(A),C),cartesian_product2(singleton(B),D)) )
       => disjoint(cartesian_product2(C,singleton(A)),cartesian_product2(D,singleton(B))) ),
    inference(negate,[],[subgoal_1]) ).

fof(normalize_1_0,plain,
    ? [A,B,C,D] :
      ( A != B
      & ~ disjoint(cartesian_product2(C,singleton(A)),cartesian_product2(D,singleton(B)))
      & disjoint(cartesian_product2(singleton(A),C),cartesian_product2(singleton(B),D)) ),
    inference(canonicalize,[],[negate_1_0]) ).

fof(normalize_1_1,plain,
    ( skolemFOFtoCNF_A_3 != skolemFOFtoCNF_B_1
    & ~ disjoint(cartesian_product2(skolemFOFtoCNF_C_1,singleton(skolemFOFtoCNF_A_3)),cartesian_product2(skolemFOFtoCNF_D_1,singleton(skolemFOFtoCNF_B_1)))
    & disjoint(cartesian_product2(singleton(skolemFOFtoCNF_A_3),skolemFOFtoCNF_C_1),cartesian_product2(singleton(skolemFOFtoCNF_B_1),skolemFOFtoCNF_D_1)) ),
    inference(skolemize,[],[normalize_1_0]) ).

fof(normalize_1_2,plain,
    ~ disjoint(cartesian_product2(skolemFOFtoCNF_C_1,singleton(skolemFOFtoCNF_A_3)),cartesian_product2(skolemFOFtoCNF_D_1,singleton(skolemFOFtoCNF_B_1))),
    inference(conjunct,[],[normalize_1_1]) ).

fof(normalize_1_3,plain,
    ! [A,B] :
      ( A = B
      | disjoint(singleton(A),singleton(B)) ),
    inference(canonicalize,[],[t17_zfmisc_1]) ).

fof(normalize_1_4,plain,
    ! [A,B] :
      ( A = B
      | disjoint(singleton(A),singleton(B)) ),
    inference(specialize,[],[normalize_1_3]) ).

fof(normalize_1_5,plain,
    ! [A,B,C,D] :
      ( disjoint(cartesian_product2(A,C),cartesian_product2(B,D))
      | ( ~ disjoint(A,B)
        & ~ disjoint(C,D) ) ),
    inference(canonicalize,[],[t127_zfmisc_1]) ).

fof(normalize_1_6,plain,
    ! [A,B,C,D] :
      ( disjoint(cartesian_product2(A,C),cartesian_product2(B,D))
      | ( ~ disjoint(A,B)
        & ~ disjoint(C,D) ) ),
    inference(specialize,[],[normalize_1_5]) ).

fof(normalize_1_7,plain,
    ! [A,B,C,D] :
      ( ( ~ disjoint(A,B)
        | disjoint(cartesian_product2(A,C),cartesian_product2(B,D)) )
      & ( ~ disjoint(C,D)
        | disjoint(cartesian_product2(A,C),cartesian_product2(B,D)) ) ),
    inference(clausify,[],[normalize_1_6]) ).

fof(normalize_1_8,plain,
    ! [A,B,C,D] :
      ( ~ disjoint(C,D)
      | disjoint(cartesian_product2(A,C),cartesian_product2(B,D)) ),
    inference(conjunct,[],[normalize_1_7]) ).

fof(normalize_1_9,plain,
    skolemFOFtoCNF_A_3 != skolemFOFtoCNF_B_1,
    inference(conjunct,[],[normalize_1_1]) ).

cnf(refute_1_0,plain,
    ~ disjoint(cartesian_product2(skolemFOFtoCNF_C_1,singleton(skolemFOFtoCNF_A_3)),cartesian_product2(skolemFOFtoCNF_D_1,singleton(skolemFOFtoCNF_B_1))),
    inference(canonicalize,[],[normalize_1_2]) ).

cnf(refute_1_1,plain,
    ( A = B
    | disjoint(singleton(A),singleton(B)) ),
    inference(canonicalize,[],[normalize_1_4]) ).

cnf(refute_1_2,plain,
    ( ~ disjoint(C,D)
    | disjoint(cartesian_product2(A,C),cartesian_product2(B,D)) ),
    inference(canonicalize,[],[normalize_1_8]) ).

cnf(refute_1_3,plain,
    ( ~ disjoint(singleton(A),singleton(B))
    | disjoint(cartesian_product2(X_32,singleton(A)),cartesian_product2(X_33,singleton(B))) ),
    inference(subst,[],[refute_1_2:[bind(A,$fot(X_32)),bind(B,$fot(X_33)),bind(C,$fot(singleton(A))),bind(D,$fot(singleton(B)))]]) ).

cnf(refute_1_4,plain,
    ( A = B
    | disjoint(cartesian_product2(X_32,singleton(A)),cartesian_product2(X_33,singleton(B))) ),
    inference(resolve,[$cnf( disjoint(singleton(A),singleton(B)) )],[refute_1_1,refute_1_3]) ).

cnf(refute_1_5,plain,
    ( skolemFOFtoCNF_A_3 = skolemFOFtoCNF_B_1
    | disjoint(cartesian_product2(skolemFOFtoCNF_C_1,singleton(skolemFOFtoCNF_A_3)),cartesian_product2(skolemFOFtoCNF_D_1,singleton(skolemFOFtoCNF_B_1))) ),
    inference(subst,[],[refute_1_4:[bind(A,$fot(skolemFOFtoCNF_A_3)),bind(B,$fot(skolemFOFtoCNF_B_1)),bind(X_32,$fot(skolemFOFtoCNF_C_1)),bind(X_33,$fot(skolemFOFtoCNF_D_1))]]) ).

cnf(refute_1_6,plain,
    skolemFOFtoCNF_A_3 = skolemFOFtoCNF_B_1,
    inference(resolve,[$cnf( disjoint(cartesian_product2(skolemFOFtoCNF_C_1,singleton(skolemFOFtoCNF_A_3)),cartesian_product2(skolemFOFtoCNF_D_1,singleton(skolemFOFtoCNF_B_1))) )],[refute_1_5,refute_1_0]) ).

cnf(refute_1_7,plain,
    skolemFOFtoCNF_A_3 != skolemFOFtoCNF_B_1,
    inference(canonicalize,[],[normalize_1_9]) ).

cnf(refute_1_8,plain,
    $false,
    inference(resolve,[$cnf( $equal(skolemFOFtoCNF_A_3,skolemFOFtoCNF_B_1) )],[refute_1_6,refute_1_7]) ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.04/0.13  % Problem  : SET978+1 : TPTP v8.1.0. Released v3.2.0.
% 0.04/0.14  % Command  : metis --show proof --show saturation %s
% 0.15/0.35  % Computer : n016.cluster.edu
% 0.15/0.35  % Model    : x86_64 x86_64
% 0.15/0.35  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.15/0.35  % Memory   : 8042.1875MB
% 0.15/0.35  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.15/0.36  % CPULimit : 300
% 0.15/0.36  % WCLimit  : 600
% 0.15/0.36  % DateTime : Sat Jul  9 16:22:25 EDT 2022
% 0.15/0.36  % CPUTime  : 
% 0.15/0.36  %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% 0.22/0.39  % SZS status Theorem for /export/starexec/sandbox/benchmark/theBenchmark.p
% 0.22/0.39  
% 0.22/0.39  % SZS output start CNFRefutation for /export/starexec/sandbox/benchmark/theBenchmark.p
% See solution above
% 0.22/0.39  
%------------------------------------------------------------------------------