TSTP Solution File: SET060+1 by Metis---2.4

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%------------------------------------------------------------------------------
% File     : Metis---2.4
% Problem  : SET060+1 : TPTP v8.1.0. Bugfixed v5.4.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : metis --show proof --show saturation %s

% Computer : n018.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 03:31:57 EDT 2022

% Result   : Theorem 44.19s 44.39s
% Output   : CNFRefutation 44.19s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :    9
%            Number of leaves      :    3
% Syntax   : Number of formulae    :   27 (  10 unt;   0 def)
%            Number of atoms       :   60 (   0 equ)
%            Maximal formula atoms :    7 (   2 avg)
%            Number of connectives :   69 (  36   ~;  21   |;   6   &)
%                                         (   6 <=>;   0  =>;   0  <=;   0 <~>)
%            Maximal formula depth :    9 (   4 avg)
%            Maximal term depth    :    3 (   1 avg)
%            Number of predicates  :    2 (   1 usr;   1 prp; 0-2 aty)
%            Number of functors    :    5 (   5 usr;   3 con; 0-2 aty)
%            Number of variables   :   44 (   2 sgn  34   !;   2   ?)

% Comments : 
%------------------------------------------------------------------------------
fof(intersection,axiom,
    ! [X,Y,Z] :
      ( member(Z,intersection(X,Y))
    <=> ( member(Z,X)
        & member(Z,Y) ) ) ).

fof(complement,axiom,
    ! [X,Z] :
      ( member(Z,complement(X))
    <=> ( member(Z,universal_class)
        & ~ member(Z,X) ) ) ).

fof(special_classes_lemma,conjecture,
    ! [X,Y] : ~ member(Y,intersection(complement(X),X)) ).

fof(subgoal_0,plain,
    ! [X,Y] : ~ member(Y,intersection(complement(X),X)),
    inference(strip,[],[special_classes_lemma]) ).

fof(negate_0_0,plain,
    ~ ! [X,Y] : ~ member(Y,intersection(complement(X),X)),
    inference(negate,[],[subgoal_0]) ).

fof(normalize_0_0,plain,
    ? [X,Y] : member(Y,intersection(complement(X),X)),
    inference(canonicalize,[],[negate_0_0]) ).

fof(normalize_0_1,plain,
    member(skolemFOFtoCNF_Y_1,intersection(complement(skolemFOFtoCNF_X_2),skolemFOFtoCNF_X_2)),
    inference(skolemize,[],[normalize_0_0]) ).

fof(normalize_0_2,plain,
    ! [X,Y,Z] :
      ( ~ member(Z,intersection(X,Y))
    <=> ( ~ member(Z,X)
        | ~ member(Z,Y) ) ),
    inference(canonicalize,[],[intersection]) ).

fof(normalize_0_3,plain,
    ! [X,Y,Z] :
      ( ~ member(Z,intersection(X,Y))
    <=> ( ~ member(Z,X)
        | ~ member(Z,Y) ) ),
    inference(specialize,[],[normalize_0_2]) ).

fof(normalize_0_4,plain,
    ! [X,Y,Z] :
      ( ( ~ member(Z,intersection(X,Y))
        | member(Z,X) )
      & ( ~ member(Z,intersection(X,Y))
        | member(Z,Y) )
      & ( ~ member(Z,X)
        | ~ member(Z,Y)
        | member(Z,intersection(X,Y)) ) ),
    inference(clausify,[],[normalize_0_3]) ).

fof(normalize_0_5,plain,
    ! [X,Y,Z] :
      ( ~ member(Z,intersection(X,Y))
      | member(Z,Y) ),
    inference(conjunct,[],[normalize_0_4]) ).

fof(normalize_0_6,plain,
    ! [X,Z] :
      ( ~ member(Z,complement(X))
    <=> ( ~ member(Z,universal_class)
        | member(Z,X) ) ),
    inference(canonicalize,[],[complement]) ).

fof(normalize_0_7,plain,
    ! [X,Z] :
      ( ~ member(Z,complement(X))
    <=> ( ~ member(Z,universal_class)
        | member(Z,X) ) ),
    inference(specialize,[],[normalize_0_6]) ).

fof(normalize_0_8,plain,
    ! [X,Z] :
      ( ( ~ member(Z,X)
        | ~ member(Z,complement(X)) )
      & ( ~ member(Z,complement(X))
        | member(Z,universal_class) )
      & ( ~ member(Z,universal_class)
        | member(Z,X)
        | member(Z,complement(X)) ) ),
    inference(clausify,[],[normalize_0_7]) ).

fof(normalize_0_9,plain,
    ! [X,Z] :
      ( ~ member(Z,X)
      | ~ member(Z,complement(X)) ),
    inference(conjunct,[],[normalize_0_8]) ).

fof(normalize_0_10,plain,
    ! [X,Y,Z] :
      ( ~ member(Z,intersection(X,Y))
      | member(Z,X) ),
    inference(conjunct,[],[normalize_0_4]) ).

cnf(refute_0_0,plain,
    member(skolemFOFtoCNF_Y_1,intersection(complement(skolemFOFtoCNF_X_2),skolemFOFtoCNF_X_2)),
    inference(canonicalize,[],[normalize_0_1]) ).

cnf(refute_0_1,plain,
    ( ~ member(Z,intersection(X,Y))
    | member(Z,Y) ),
    inference(canonicalize,[],[normalize_0_5]) ).

cnf(refute_0_2,plain,
    ( ~ member(skolemFOFtoCNF_Y_1,intersection(complement(skolemFOFtoCNF_X_2),skolemFOFtoCNF_X_2))
    | member(skolemFOFtoCNF_Y_1,skolemFOFtoCNF_X_2) ),
    inference(subst,[],[refute_0_1:[bind(X,$fot(complement(skolemFOFtoCNF_X_2))),bind(Y,$fot(skolemFOFtoCNF_X_2)),bind(Z,$fot(skolemFOFtoCNF_Y_1))]]) ).

cnf(refute_0_3,plain,
    member(skolemFOFtoCNF_Y_1,skolemFOFtoCNF_X_2),
    inference(resolve,[$cnf( member(skolemFOFtoCNF_Y_1,intersection(complement(skolemFOFtoCNF_X_2),skolemFOFtoCNF_X_2)) )],[refute_0_0,refute_0_2]) ).

cnf(refute_0_4,plain,
    ( ~ member(Z,X)
    | ~ member(Z,complement(X)) ),
    inference(canonicalize,[],[normalize_0_9]) ).

cnf(refute_0_5,plain,
    ( ~ member(skolemFOFtoCNF_Y_1,complement(skolemFOFtoCNF_X_2))
    | ~ member(skolemFOFtoCNF_Y_1,skolemFOFtoCNF_X_2) ),
    inference(subst,[],[refute_0_4:[bind(X,$fot(skolemFOFtoCNF_X_2)),bind(Z,$fot(skolemFOFtoCNF_Y_1))]]) ).

cnf(refute_0_6,plain,
    ( ~ member(Z,intersection(X,Y))
    | member(Z,X) ),
    inference(canonicalize,[],[normalize_0_10]) ).

cnf(refute_0_7,plain,
    ( ~ member(skolemFOFtoCNF_Y_1,intersection(complement(skolemFOFtoCNF_X_2),skolemFOFtoCNF_X_2))
    | member(skolemFOFtoCNF_Y_1,complement(skolemFOFtoCNF_X_2)) ),
    inference(subst,[],[refute_0_6:[bind(X,$fot(complement(skolemFOFtoCNF_X_2))),bind(Y,$fot(skolemFOFtoCNF_X_2)),bind(Z,$fot(skolemFOFtoCNF_Y_1))]]) ).

cnf(refute_0_8,plain,
    member(skolemFOFtoCNF_Y_1,complement(skolemFOFtoCNF_X_2)),
    inference(resolve,[$cnf( member(skolemFOFtoCNF_Y_1,intersection(complement(skolemFOFtoCNF_X_2),skolemFOFtoCNF_X_2)) )],[refute_0_0,refute_0_7]) ).

cnf(refute_0_9,plain,
    ~ member(skolemFOFtoCNF_Y_1,skolemFOFtoCNF_X_2),
    inference(resolve,[$cnf( member(skolemFOFtoCNF_Y_1,complement(skolemFOFtoCNF_X_2)) )],[refute_0_8,refute_0_5]) ).

cnf(refute_0_10,plain,
    $false,
    inference(resolve,[$cnf( member(skolemFOFtoCNF_Y_1,skolemFOFtoCNF_X_2) )],[refute_0_3,refute_0_9]) ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.03/0.11  % Problem  : SET060+1 : TPTP v8.1.0. Bugfixed v5.4.0.
% 0.03/0.12  % Command  : metis --show proof --show saturation %s
% 0.11/0.33  % Computer : n018.cluster.edu
% 0.11/0.33  % Model    : x86_64 x86_64
% 0.11/0.33  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.11/0.33  % Memory   : 8042.1875MB
% 0.11/0.33  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.11/0.33  % CPULimit : 300
% 0.11/0.33  % WCLimit  : 600
% 0.11/0.33  % DateTime : Sat Jul  9 16:04:26 EDT 2022
% 0.11/0.33  % CPUTime  : 
% 0.11/0.33  %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% 44.19/44.39  % SZS status Theorem for /export/starexec/sandbox/benchmark/theBenchmark.p
% 44.19/44.39  
% 44.19/44.39  % SZS output start CNFRefutation for /export/starexec/sandbox/benchmark/theBenchmark.p
% See solution above
% 44.19/44.40  
%------------------------------------------------------------------------------