TSTP Solution File: SYN966+1 by Metis---2.4

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%------------------------------------------------------------------------------
% File     : Metis---2.4
% Problem  : SYN966+1 : TPTP v8.1.0. Released v3.1.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : metis --show proof --show saturation %s

% Computer : n010.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 : Thu Jul 21 09:12:30 EDT 2022

% Result   : Theorem 0.12s 0.35s
% Output   : CNFRefutation 0.12s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :   17
%            Number of leaves      :    1
% Syntax   : Number of formulae    :   39 (   8 unt;   0 def)
%            Number of atoms       :  109 (   0 equ)
%            Maximal formula atoms :   12 (   2 avg)
%            Number of connectives :  111 (  41   ~;  45   |;   7   &)
%                                         (  12 <=>;   6  =>;   0  <=;   0 <~>)
%            Maximal formula depth :   10 (   4 avg)
%            Maximal term depth    :    2 (   1 avg)
%            Number of predicates  :    3 (   2 usr;   1 prp; 0-2 aty)
%            Number of functors    :    3 (   3 usr;   2 con; 0-2 aty)
%            Number of variables   :   61 (   0 sgn  34   !;   7   ?)

% Comments : 
%------------------------------------------------------------------------------
fof(prove_this,conjecture,
    ( ! [X,Y] :
        ( eq(X,Y)
      <=> ! [Z] :
            ( a_member_of(Z,X)
          <=> a_member_of(Z,Y) ) )
   => ! [A,B] :
        ( eq(A,B)
       => eq(B,A) ) ) ).

fof(subgoal_0,plain,
    ( ! [X,Y] :
        ( eq(X,Y)
      <=> ! [Z] :
            ( a_member_of(Z,X)
          <=> a_member_of(Z,Y) ) )
   => ! [A,B] :
        ( eq(A,B)
       => eq(B,A) ) ),
    inference(strip,[],[prove_this]) ).

fof(negate_0_0,plain,
    ~ ( ! [X,Y] :
          ( eq(X,Y)
        <=> ! [Z] :
              ( a_member_of(Z,X)
            <=> a_member_of(Z,Y) ) )
     => ! [A,B] :
          ( eq(A,B)
         => eq(B,A) ) ),
    inference(negate,[],[subgoal_0]) ).

fof(normalize_0_0,plain,
    ( ? [A,B] :
        ( ~ eq(B,A)
        & eq(A,B) )
    & ! [X,Y] :
        ( ~ eq(X,Y)
      <=> ? [Z] :
            ( ~ a_member_of(Z,X)
          <=> a_member_of(Z,Y) ) ) ),
    inference(canonicalize,[],[negate_0_0]) ).

fof(normalize_0_1,plain,
    ! [X,Y] :
      ( ~ eq(X,Y)
    <=> ? [Z] :
          ( ~ a_member_of(Z,X)
        <=> a_member_of(Z,Y) ) ),
    inference(conjunct,[],[normalize_0_0]) ).

fof(normalize_0_2,plain,
    ! [X,Y] :
      ( ~ eq(X,Y)
    <=> ? [Z] :
          ( ~ a_member_of(Z,X)
        <=> a_member_of(Z,Y) ) ),
    inference(specialize,[],[normalize_0_1]) ).

fof(normalize_0_3,plain,
    ! [X,Y,Z] :
      ( ( ~ a_member_of(Z,X)
        | ~ eq(X,Y)
        | a_member_of(Z,Y) )
      & ( ~ a_member_of(Z,Y)
        | ~ eq(X,Y)
        | a_member_of(Z,X) )
      & ( ~ a_member_of(skolemFOFtoCNF_Z(X,Y),X)
        | ~ a_member_of(skolemFOFtoCNF_Z(X,Y),Y)
        | eq(X,Y) )
      & ( a_member_of(skolemFOFtoCNF_Z(X,Y),X)
        | a_member_of(skolemFOFtoCNF_Z(X,Y),Y)
        | eq(X,Y) ) ),
    inference(clausify,[],[normalize_0_2]) ).

fof(normalize_0_4,plain,
    ! [X,Y] :
      ( ~ a_member_of(skolemFOFtoCNF_Z(X,Y),X)
      | ~ a_member_of(skolemFOFtoCNF_Z(X,Y),Y)
      | eq(X,Y) ),
    inference(conjunct,[],[normalize_0_3]) ).

fof(normalize_0_5,plain,
    ? [A,B] :
      ( ~ eq(B,A)
      & eq(A,B) ),
    inference(conjunct,[],[normalize_0_0]) ).

fof(normalize_0_6,plain,
    ( ~ eq(skolemFOFtoCNF_B,skolemFOFtoCNF_A)
    & eq(skolemFOFtoCNF_A,skolemFOFtoCNF_B) ),
    inference(skolemize,[],[normalize_0_5]) ).

fof(normalize_0_7,plain,
    eq(skolemFOFtoCNF_A,skolemFOFtoCNF_B),
    inference(conjunct,[],[normalize_0_6]) ).

fof(normalize_0_8,plain,
    ! [X,Y,Z] :
      ( ~ a_member_of(Z,X)
      | ~ eq(X,Y)
      | a_member_of(Z,Y) ),
    inference(conjunct,[],[normalize_0_3]) ).

fof(normalize_0_9,plain,
    ! [X,Y] :
      ( a_member_of(skolemFOFtoCNF_Z(X,Y),X)
      | a_member_of(skolemFOFtoCNF_Z(X,Y),Y)
      | eq(X,Y) ),
    inference(conjunct,[],[normalize_0_3]) ).

fof(normalize_0_10,plain,
    ~ eq(skolemFOFtoCNF_B,skolemFOFtoCNF_A),
    inference(conjunct,[],[normalize_0_6]) ).

fof(normalize_0_11,plain,
    ! [X,Y,Z] :
      ( ~ a_member_of(Z,Y)
      | ~ eq(X,Y)
      | a_member_of(Z,X) ),
    inference(conjunct,[],[normalize_0_3]) ).

cnf(refute_0_0,plain,
    ( ~ a_member_of(skolemFOFtoCNF_Z(X,Y),X)
    | ~ a_member_of(skolemFOFtoCNF_Z(X,Y),Y)
    | eq(X,Y) ),
    inference(canonicalize,[],[normalize_0_4]) ).

cnf(refute_0_1,plain,
    ( ~ a_member_of(skolemFOFtoCNF_Z(skolemFOFtoCNF_B,skolemFOFtoCNF_A),skolemFOFtoCNF_A)
    | ~ a_member_of(skolemFOFtoCNF_Z(skolemFOFtoCNF_B,skolemFOFtoCNF_A),skolemFOFtoCNF_B)
    | eq(skolemFOFtoCNF_B,skolemFOFtoCNF_A) ),
    inference(subst,[],[refute_0_0:[bind(X,$fot(skolemFOFtoCNF_B)),bind(Y,$fot(skolemFOFtoCNF_A))]]) ).

cnf(refute_0_2,plain,
    eq(skolemFOFtoCNF_A,skolemFOFtoCNF_B),
    inference(canonicalize,[],[normalize_0_7]) ).

cnf(refute_0_3,plain,
    ( ~ a_member_of(Z,X)
    | ~ eq(X,Y)
    | a_member_of(Z,Y) ),
    inference(canonicalize,[],[normalize_0_8]) ).

cnf(refute_0_4,plain,
    ( ~ a_member_of(X_5,skolemFOFtoCNF_A)
    | ~ eq(skolemFOFtoCNF_A,skolemFOFtoCNF_B)
    | a_member_of(X_5,skolemFOFtoCNF_B) ),
    inference(subst,[],[refute_0_3:[bind(X,$fot(skolemFOFtoCNF_A)),bind(Y,$fot(skolemFOFtoCNF_B)),bind(Z,$fot(X_5))]]) ).

cnf(refute_0_5,plain,
    ( ~ a_member_of(X_5,skolemFOFtoCNF_A)
    | a_member_of(X_5,skolemFOFtoCNF_B) ),
    inference(resolve,[$cnf( eq(skolemFOFtoCNF_A,skolemFOFtoCNF_B) )],[refute_0_2,refute_0_4]) ).

cnf(refute_0_6,plain,
    ( ~ a_member_of(skolemFOFtoCNF_Z(X_13,skolemFOFtoCNF_A),skolemFOFtoCNF_A)
    | a_member_of(skolemFOFtoCNF_Z(X_13,skolemFOFtoCNF_A),skolemFOFtoCNF_B) ),
    inference(subst,[],[refute_0_5:[bind(X_5,$fot(skolemFOFtoCNF_Z(X_13,skolemFOFtoCNF_A)))]]) ).

cnf(refute_0_7,plain,
    ( a_member_of(skolemFOFtoCNF_Z(X,Y),X)
    | a_member_of(skolemFOFtoCNF_Z(X,Y),Y)
    | eq(X,Y) ),
    inference(canonicalize,[],[normalize_0_9]) ).

cnf(refute_0_8,plain,
    ( a_member_of(skolemFOFtoCNF_Z(X_13,skolemFOFtoCNF_A),X_13)
    | a_member_of(skolemFOFtoCNF_Z(X_13,skolemFOFtoCNF_A),skolemFOFtoCNF_A)
    | eq(X_13,skolemFOFtoCNF_A) ),
    inference(subst,[],[refute_0_7:[bind(X,$fot(X_13)),bind(Y,$fot(skolemFOFtoCNF_A))]]) ).

cnf(refute_0_9,plain,
    ( a_member_of(skolemFOFtoCNF_Z(X_13,skolemFOFtoCNF_A),X_13)
    | a_member_of(skolemFOFtoCNF_Z(X_13,skolemFOFtoCNF_A),skolemFOFtoCNF_B)
    | eq(X_13,skolemFOFtoCNF_A) ),
    inference(resolve,[$cnf( a_member_of(skolemFOFtoCNF_Z(X_13,skolemFOFtoCNF_A),skolemFOFtoCNF_A) )],[refute_0_8,refute_0_6]) ).

cnf(refute_0_10,plain,
    ( a_member_of(skolemFOFtoCNF_Z(skolemFOFtoCNF_B,skolemFOFtoCNF_A),skolemFOFtoCNF_B)
    | eq(skolemFOFtoCNF_B,skolemFOFtoCNF_A) ),
    inference(subst,[],[refute_0_9:[bind(X_13,$fot(skolemFOFtoCNF_B))]]) ).

cnf(refute_0_11,plain,
    ~ eq(skolemFOFtoCNF_B,skolemFOFtoCNF_A),
    inference(canonicalize,[],[normalize_0_10]) ).

cnf(refute_0_12,plain,
    a_member_of(skolemFOFtoCNF_Z(skolemFOFtoCNF_B,skolemFOFtoCNF_A),skolemFOFtoCNF_B),
    inference(resolve,[$cnf( eq(skolemFOFtoCNF_B,skolemFOFtoCNF_A) )],[refute_0_10,refute_0_11]) ).

cnf(refute_0_13,plain,
    ( ~ a_member_of(skolemFOFtoCNF_Z(skolemFOFtoCNF_B,skolemFOFtoCNF_A),skolemFOFtoCNF_A)
    | eq(skolemFOFtoCNF_B,skolemFOFtoCNF_A) ),
    inference(resolve,[$cnf( a_member_of(skolemFOFtoCNF_Z(skolemFOFtoCNF_B,skolemFOFtoCNF_A),skolemFOFtoCNF_B) )],[refute_0_12,refute_0_1]) ).

cnf(refute_0_14,plain,
    ( ~ a_member_of(Z,Y)
    | ~ eq(X,Y)
    | a_member_of(Z,X) ),
    inference(canonicalize,[],[normalize_0_11]) ).

cnf(refute_0_15,plain,
    ( ~ a_member_of(X_9,skolemFOFtoCNF_B)
    | ~ eq(skolemFOFtoCNF_A,skolemFOFtoCNF_B)
    | a_member_of(X_9,skolemFOFtoCNF_A) ),
    inference(subst,[],[refute_0_14:[bind(X,$fot(skolemFOFtoCNF_A)),bind(Y,$fot(skolemFOFtoCNF_B)),bind(Z,$fot(X_9))]]) ).

cnf(refute_0_16,plain,
    ( ~ a_member_of(X_9,skolemFOFtoCNF_B)
    | a_member_of(X_9,skolemFOFtoCNF_A) ),
    inference(resolve,[$cnf( eq(skolemFOFtoCNF_A,skolemFOFtoCNF_B) )],[refute_0_2,refute_0_15]) ).

cnf(refute_0_17,plain,
    ( ~ a_member_of(skolemFOFtoCNF_Z(skolemFOFtoCNF_B,X_14),skolemFOFtoCNF_B)
    | a_member_of(skolemFOFtoCNF_Z(skolemFOFtoCNF_B,X_14),skolemFOFtoCNF_A) ),
    inference(subst,[],[refute_0_16:[bind(X_9,$fot(skolemFOFtoCNF_Z(skolemFOFtoCNF_B,X_14)))]]) ).

cnf(refute_0_18,plain,
    ( a_member_of(skolemFOFtoCNF_Z(skolemFOFtoCNF_B,X_14),X_14)
    | a_member_of(skolemFOFtoCNF_Z(skolemFOFtoCNF_B,X_14),skolemFOFtoCNF_B)
    | eq(skolemFOFtoCNF_B,X_14) ),
    inference(subst,[],[refute_0_7:[bind(X,$fot(skolemFOFtoCNF_B)),bind(Y,$fot(X_14))]]) ).

cnf(refute_0_19,plain,
    ( a_member_of(skolemFOFtoCNF_Z(skolemFOFtoCNF_B,X_14),X_14)
    | a_member_of(skolemFOFtoCNF_Z(skolemFOFtoCNF_B,X_14),skolemFOFtoCNF_A)
    | eq(skolemFOFtoCNF_B,X_14) ),
    inference(resolve,[$cnf( a_member_of(skolemFOFtoCNF_Z(skolemFOFtoCNF_B,X_14),skolemFOFtoCNF_B) )],[refute_0_18,refute_0_17]) ).

cnf(refute_0_20,plain,
    ( a_member_of(skolemFOFtoCNF_Z(skolemFOFtoCNF_B,skolemFOFtoCNF_A),skolemFOFtoCNF_A)
    | eq(skolemFOFtoCNF_B,skolemFOFtoCNF_A) ),
    inference(subst,[],[refute_0_19:[bind(X_14,$fot(skolemFOFtoCNF_A))]]) ).

cnf(refute_0_21,plain,
    a_member_of(skolemFOFtoCNF_Z(skolemFOFtoCNF_B,skolemFOFtoCNF_A),skolemFOFtoCNF_A),
    inference(resolve,[$cnf( eq(skolemFOFtoCNF_B,skolemFOFtoCNF_A) )],[refute_0_20,refute_0_11]) ).

cnf(refute_0_22,plain,
    eq(skolemFOFtoCNF_B,skolemFOFtoCNF_A),
    inference(resolve,[$cnf( a_member_of(skolemFOFtoCNF_Z(skolemFOFtoCNF_B,skolemFOFtoCNF_A),skolemFOFtoCNF_A) )],[refute_0_21,refute_0_13]) ).

cnf(refute_0_23,plain,
    $false,
    inference(resolve,[$cnf( eq(skolemFOFtoCNF_B,skolemFOFtoCNF_A) )],[refute_0_22,refute_0_11]) ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.12/0.12  % Problem  : SYN966+1 : TPTP v8.1.0. Released v3.1.0.
% 0.12/0.13  % Command  : metis --show proof --show saturation %s
% 0.12/0.34  % Computer : n010.cluster.edu
% 0.12/0.34  % Model    : x86_64 x86_64
% 0.12/0.34  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.12/0.34  % Memory   : 8042.1875MB
% 0.12/0.34  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.12/0.34  % CPULimit : 300
% 0.12/0.34  % WCLimit  : 600
% 0.12/0.34  % DateTime : Mon Jul 11 19:36:30 EDT 2022
% 0.12/0.34  % CPUTime  : 
% 0.12/0.35  %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% 0.12/0.35  % SZS status Theorem for /export/starexec/sandbox/benchmark/theBenchmark.p
% 0.12/0.35  
% 0.12/0.35  % SZS output start CNFRefutation for /export/starexec/sandbox/benchmark/theBenchmark.p
% See solution above
% 0.12/0.36  
%------------------------------------------------------------------------------