TSTP Solution File: SYN075+1 by Metis---2.4

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : Metis---2.4
% Problem  : SYN075+1 : TPTP v8.1.0. Released v2.0.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : metis --show proof --show saturation %s

% Computer : n008.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 08:59:20 EDT 2022

% Result   : Theorem 0.18s 0.35s
% Output   : CNFRefutation 0.18s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :   25
%            Number of leaves      :   10
% Syntax   : Number of formulae    :   59 (   8 unt;   0 def)
%            Number of atoms       :  158 ( 101 equ)
%            Maximal formula atoms :   12 (   2 avg)
%            Number of connectives :  184 (  85   ~;  77   |;   6   &)
%                                         (  16 <=>;   0  =>;   0  <=;   0 <~>)
%            Maximal formula depth :    9 (   4 avg)
%            Maximal term depth    :    2 (   1 avg)
%            Number of predicates  :    4 (   1 usr;   1 prp; 0-2 aty)
%            Number of functors    :    5 (   5 usr;   2 con; 0-2 aty)
%            Number of variables   :   88 (   2 sgn  37   !;  15   ?)

% Comments : 
%------------------------------------------------------------------------------
fof(pel52_1,axiom,
    ? [Z,W] :
    ! [X,Y] :
      ( big_f(X,Y)
    <=> ( X = Z
        & Y = W ) ) ).

fof(pel52,conjecture,
    ? [W] :
    ! [Y] :
      ( ? [Z] :
        ! [X] :
          ( big_f(X,Y)
        <=> X = Z )
    <=> Y = W ) ).

fof(subgoal_0,plain,
    ? [W] :
    ! [Y] :
      ( ? [Z] :
        ! [X] :
          ( big_f(X,Y)
        <=> X = Z )
    <=> Y = W ),
    inference(strip,[],[pel52]) ).

fof(negate_0_0,plain,
    ~ ? [W] :
      ! [Y] :
        ( ? [Z] :
          ! [X] :
            ( big_f(X,Y)
          <=> X = Z )
      <=> Y = W ),
    inference(negate,[],[subgoal_0]) ).

fof(normalize_0_0,plain,
    ! [W] :
    ? [Y] :
      ( Y != W
    <=> ? [Z] :
        ! [X] :
          ( X != Z
        <=> ~ big_f(X,Y) ) ),
    inference(canonicalize,[],[negate_0_0]) ).

fof(normalize_0_1,plain,
    ! [W] :
    ? [Y] :
      ( Y != W
    <=> ? [Z] :
        ! [X] :
          ( X != Z
        <=> ~ big_f(X,Y) ) ),
    inference(specialize,[],[normalize_0_0]) ).

fof(normalize_0_2,plain,
    ! [W] :
      ( skolemFOFtoCNF_Y(W) != W
    <=> ? [Z] :
        ! [X] :
          ( X != Z
        <=> ~ big_f(X,skolemFOFtoCNF_Y(W)) ) ),
    inference(skolemize,[],[normalize_0_1]) ).

fof(normalize_0_3,plain,
    ! [W,X,Z] :
      ( ( X != skolemFOFtoCNF_Z_1(W)
        | skolemFOFtoCNF_Y(W) = W
        | big_f(X,skolemFOFtoCNF_Y(W)) )
      & ( skolemFOFtoCNF_X(W,Z) != Z
        | skolemFOFtoCNF_Y(W) != W
        | ~ big_f(skolemFOFtoCNF_X(W,Z),skolemFOFtoCNF_Y(W)) )
      & ( skolemFOFtoCNF_Y(W) != W
        | skolemFOFtoCNF_X(W,Z) = Z
        | big_f(skolemFOFtoCNF_X(W,Z),skolemFOFtoCNF_Y(W)) )
      & ( ~ big_f(X,skolemFOFtoCNF_Y(W))
        | X = skolemFOFtoCNF_Z_1(W)
        | skolemFOFtoCNF_Y(W) = W ) ),
    inference(clausify,[],[normalize_0_2]) ).

fof(normalize_0_4,plain,
    ! [W,Z] :
      ( skolemFOFtoCNF_X(W,Z) != Z
      | skolemFOFtoCNF_Y(W) != W
      | ~ big_f(skolemFOFtoCNF_X(W,Z),skolemFOFtoCNF_Y(W)) ),
    inference(conjunct,[],[normalize_0_3]) ).

fof(normalize_0_5,plain,
    ? [W,Z] :
    ! [X,Y] :
      ( ~ big_f(X,Y)
    <=> ( X != Z
        | Y != W ) ),
    inference(canonicalize,[],[pel52_1]) ).

fof(normalize_0_6,plain,
    ! [X,Y] :
      ( ~ big_f(X,Y)
    <=> ( X != skolemFOFtoCNF_Z
        | Y != skolemFOFtoCNF_W ) ),
    inference(skolemize,[],[normalize_0_5]) ).

fof(normalize_0_7,plain,
    ! [X,Y] :
      ( ~ big_f(X,Y)
    <=> ( X != skolemFOFtoCNF_Z
        | Y != skolemFOFtoCNF_W ) ),
    inference(specialize,[],[normalize_0_6]) ).

fof(normalize_0_8,plain,
    ! [X,Y] :
      ( ( ~ big_f(X,Y)
        | X = skolemFOFtoCNF_Z )
      & ( ~ big_f(X,Y)
        | Y = skolemFOFtoCNF_W )
      & ( X != skolemFOFtoCNF_Z
        | Y != skolemFOFtoCNF_W
        | big_f(X,Y) ) ),
    inference(clausify,[],[normalize_0_7]) ).

fof(normalize_0_9,plain,
    ! [X,Y] :
      ( ~ big_f(X,Y)
      | X = skolemFOFtoCNF_Z ),
    inference(conjunct,[],[normalize_0_8]) ).

fof(normalize_0_10,plain,
    ! [W,Z] :
      ( skolemFOFtoCNF_Y(W) != W
      | skolemFOFtoCNF_X(W,Z) = Z
      | big_f(skolemFOFtoCNF_X(W,Z),skolemFOFtoCNF_Y(W)) ),
    inference(conjunct,[],[normalize_0_3]) ).

fof(normalize_0_11,plain,
    ! [X,Y] :
      ( ~ big_f(X,Y)
      | Y = skolemFOFtoCNF_W ),
    inference(conjunct,[],[normalize_0_8]) ).

fof(normalize_0_12,plain,
    ! [W,X] :
      ( X != skolemFOFtoCNF_Z_1(W)
      | skolemFOFtoCNF_Y(W) = W
      | big_f(X,skolemFOFtoCNF_Y(W)) ),
    inference(conjunct,[],[normalize_0_3]) ).

fof(normalize_0_13,plain,
    ! [X,Y] :
      ( X != skolemFOFtoCNF_Z
      | Y != skolemFOFtoCNF_W
      | big_f(X,Y) ),
    inference(conjunct,[],[normalize_0_8]) ).

cnf(refute_0_0,plain,
    ( skolemFOFtoCNF_X(W,Z) != Z
    | skolemFOFtoCNF_Y(W) != W
    | ~ big_f(skolemFOFtoCNF_X(W,Z),skolemFOFtoCNF_Y(W)) ),
    inference(canonicalize,[],[normalize_0_4]) ).

cnf(refute_0_1,plain,
    ( skolemFOFtoCNF_X(W,Z) != Z
    | ~ big_f(Z,skolemFOFtoCNF_Y(W))
    | big_f(skolemFOFtoCNF_X(W,Z),skolemFOFtoCNF_Y(W)) ),
    introduced(tautology,[equality,[$cnf( ~ big_f(skolemFOFtoCNF_X(W,Z),skolemFOFtoCNF_Y(W)) ),[0],$fot(Z)]]) ).

cnf(refute_0_2,plain,
    ( skolemFOFtoCNF_Y(W) != W
    | ~ big_f(Z,W)
    | big_f(Z,skolemFOFtoCNF_Y(W)) ),
    introduced(tautology,[equality,[$cnf( ~ big_f(Z,skolemFOFtoCNF_Y(W)) ),[1],$fot(W)]]) ).

cnf(refute_0_3,plain,
    ( skolemFOFtoCNF_X(W,Z) != Z
    | skolemFOFtoCNF_Y(W) != W
    | ~ big_f(Z,W)
    | big_f(skolemFOFtoCNF_X(W,Z),skolemFOFtoCNF_Y(W)) ),
    inference(resolve,[$cnf( big_f(Z,skolemFOFtoCNF_Y(W)) )],[refute_0_2,refute_0_1]) ).

cnf(refute_0_4,plain,
    ( skolemFOFtoCNF_X(W,Z) != Z
    | skolemFOFtoCNF_Y(W) != W
    | ~ big_f(Z,W) ),
    inference(resolve,[$cnf( big_f(skolemFOFtoCNF_X(W,Z),skolemFOFtoCNF_Y(W)) )],[refute_0_3,refute_0_0]) ).

cnf(refute_0_5,plain,
    ( skolemFOFtoCNF_X(skolemFOFtoCNF_W,skolemFOFtoCNF_Z) != skolemFOFtoCNF_Z
    | skolemFOFtoCNF_Y(skolemFOFtoCNF_W) != skolemFOFtoCNF_W
    | ~ big_f(skolemFOFtoCNF_Z,skolemFOFtoCNF_W) ),
    inference(subst,[],[refute_0_4:[bind(W,$fot(skolemFOFtoCNF_W)),bind(Z,$fot(skolemFOFtoCNF_Z))]]) ).

cnf(refute_0_6,plain,
    ( ~ big_f(X,Y)
    | X = skolemFOFtoCNF_Z ),
    inference(canonicalize,[],[normalize_0_9]) ).

cnf(refute_0_7,plain,
    ( ~ big_f(skolemFOFtoCNF_X(skolemFOFtoCNF_W,X_21),skolemFOFtoCNF_W)
    | skolemFOFtoCNF_X(skolemFOFtoCNF_W,X_21) = skolemFOFtoCNF_Z ),
    inference(subst,[],[refute_0_6:[bind(X,$fot(skolemFOFtoCNF_X(skolemFOFtoCNF_W,X_21))),bind(Y,$fot(skolemFOFtoCNF_W))]]) ).

cnf(refute_0_8,plain,
    ( skolemFOFtoCNF_Y(W) != W
    | skolemFOFtoCNF_X(W,Z) = Z
    | big_f(skolemFOFtoCNF_X(W,Z),skolemFOFtoCNF_Y(W)) ),
    inference(canonicalize,[],[normalize_0_10]) ).

cnf(refute_0_9,plain,
    ( skolemFOFtoCNF_Y(W) != W
    | ~ big_f(skolemFOFtoCNF_X(W,Z),skolemFOFtoCNF_Y(W))
    | big_f(skolemFOFtoCNF_X(W,Z),W) ),
    introduced(tautology,[equality,[$cnf( big_f(skolemFOFtoCNF_X(W,Z),skolemFOFtoCNF_Y(W)) ),[1],$fot(W)]]) ).

cnf(refute_0_10,plain,
    ( skolemFOFtoCNF_Y(W) != W
    | skolemFOFtoCNF_X(W,Z) = Z
    | big_f(skolemFOFtoCNF_X(W,Z),W) ),
    inference(resolve,[$cnf( big_f(skolemFOFtoCNF_X(W,Z),skolemFOFtoCNF_Y(W)) )],[refute_0_8,refute_0_9]) ).

cnf(refute_0_11,plain,
    ( skolemFOFtoCNF_Y(skolemFOFtoCNF_W) != skolemFOFtoCNF_W
    | skolemFOFtoCNF_X(skolemFOFtoCNF_W,X_20) = X_20
    | big_f(skolemFOFtoCNF_X(skolemFOFtoCNF_W,X_20),skolemFOFtoCNF_W) ),
    inference(subst,[],[refute_0_10:[bind(W,$fot(skolemFOFtoCNF_W)),bind(Z,$fot(X_20))]]) ).

cnf(refute_0_12,plain,
    ( ~ big_f(X,Y)
    | Y = skolemFOFtoCNF_W ),
    inference(canonicalize,[],[normalize_0_11]) ).

cnf(refute_0_13,plain,
    ( ~ big_f(skolemFOFtoCNF_Z_1(X_4),skolemFOFtoCNF_Y(X_4))
    | skolemFOFtoCNF_Y(X_4) = skolemFOFtoCNF_W ),
    inference(subst,[],[refute_0_12:[bind(X,$fot(skolemFOFtoCNF_Z_1(X_4))),bind(Y,$fot(skolemFOFtoCNF_Y(X_4)))]]) ).

cnf(refute_0_14,plain,
    ( X != skolemFOFtoCNF_Z_1(W)
    | skolemFOFtoCNF_Y(W) = W
    | big_f(X,skolemFOFtoCNF_Y(W)) ),
    inference(canonicalize,[],[normalize_0_12]) ).

cnf(refute_0_15,plain,
    ( skolemFOFtoCNF_Z_1(W) != skolemFOFtoCNF_Z_1(W)
    | skolemFOFtoCNF_Y(W) = W
    | big_f(skolemFOFtoCNF_Z_1(W),skolemFOFtoCNF_Y(W)) ),
    inference(subst,[],[refute_0_14:[bind(X,$fot(skolemFOFtoCNF_Z_1(W)))]]) ).

cnf(refute_0_16,plain,
    skolemFOFtoCNF_Z_1(W) = skolemFOFtoCNF_Z_1(W),
    introduced(tautology,[refl,[$fot(skolemFOFtoCNF_Z_1(W))]]) ).

cnf(refute_0_17,plain,
    ( skolemFOFtoCNF_Y(W) = W
    | big_f(skolemFOFtoCNF_Z_1(W),skolemFOFtoCNF_Y(W)) ),
    inference(resolve,[$cnf( $equal(skolemFOFtoCNF_Z_1(W),skolemFOFtoCNF_Z_1(W)) )],[refute_0_16,refute_0_15]) ).

cnf(refute_0_18,plain,
    ( skolemFOFtoCNF_Y(X_4) = X_4
    | big_f(skolemFOFtoCNF_Z_1(X_4),skolemFOFtoCNF_Y(X_4)) ),
    inference(subst,[],[refute_0_17:[bind(W,$fot(X_4))]]) ).

cnf(refute_0_19,plain,
    ( skolemFOFtoCNF_Y(X_4) = X_4
    | skolemFOFtoCNF_Y(X_4) = skolemFOFtoCNF_W ),
    inference(resolve,[$cnf( big_f(skolemFOFtoCNF_Z_1(X_4),skolemFOFtoCNF_Y(X_4)) )],[refute_0_18,refute_0_13]) ).

cnf(refute_0_20,plain,
    skolemFOFtoCNF_Y(skolemFOFtoCNF_W) = skolemFOFtoCNF_W,
    inference(subst,[],[refute_0_19:[bind(X_4,$fot(skolemFOFtoCNF_W))]]) ).

cnf(refute_0_21,plain,
    ( skolemFOFtoCNF_W != skolemFOFtoCNF_W
    | skolemFOFtoCNF_Y(skolemFOFtoCNF_W) != skolemFOFtoCNF_W
    | skolemFOFtoCNF_Y(skolemFOFtoCNF_W) = skolemFOFtoCNF_W ),
    introduced(tautology,[equality,[$cnf( $equal(skolemFOFtoCNF_Y(skolemFOFtoCNF_W),skolemFOFtoCNF_W) ),[0,0],$fot(skolemFOFtoCNF_W)]]) ).

cnf(refute_0_22,plain,
    ( skolemFOFtoCNF_W != skolemFOFtoCNF_W
    | skolemFOFtoCNF_Y(skolemFOFtoCNF_W) = skolemFOFtoCNF_W ),
    inference(resolve,[$cnf( $equal(skolemFOFtoCNF_Y(skolemFOFtoCNF_W),skolemFOFtoCNF_W) )],[refute_0_20,refute_0_21]) ).

cnf(refute_0_23,plain,
    ( skolemFOFtoCNF_W != skolemFOFtoCNF_W
    | skolemFOFtoCNF_X(skolemFOFtoCNF_W,X_20) = X_20
    | big_f(skolemFOFtoCNF_X(skolemFOFtoCNF_W,X_20),skolemFOFtoCNF_W) ),
    inference(resolve,[$cnf( $equal(skolemFOFtoCNF_Y(skolemFOFtoCNF_W),skolemFOFtoCNF_W) )],[refute_0_22,refute_0_11]) ).

cnf(refute_0_24,plain,
    skolemFOFtoCNF_W = skolemFOFtoCNF_W,
    introduced(tautology,[refl,[$fot(skolemFOFtoCNF_W)]]) ).

cnf(refute_0_25,plain,
    ( skolemFOFtoCNF_X(skolemFOFtoCNF_W,X_20) = X_20
    | big_f(skolemFOFtoCNF_X(skolemFOFtoCNF_W,X_20),skolemFOFtoCNF_W) ),
    inference(resolve,[$cnf( $equal(skolemFOFtoCNF_W,skolemFOFtoCNF_W) )],[refute_0_24,refute_0_23]) ).

cnf(refute_0_26,plain,
    ( skolemFOFtoCNF_X(skolemFOFtoCNF_W,X_21) = X_21
    | big_f(skolemFOFtoCNF_X(skolemFOFtoCNF_W,X_21),skolemFOFtoCNF_W) ),
    inference(subst,[],[refute_0_25:[bind(X_20,$fot(X_21))]]) ).

cnf(refute_0_27,plain,
    ( skolemFOFtoCNF_X(skolemFOFtoCNF_W,X_21) = X_21
    | skolemFOFtoCNF_X(skolemFOFtoCNF_W,X_21) = skolemFOFtoCNF_Z ),
    inference(resolve,[$cnf( big_f(skolemFOFtoCNF_X(skolemFOFtoCNF_W,X_21),skolemFOFtoCNF_W) )],[refute_0_26,refute_0_7]) ).

cnf(refute_0_28,plain,
    skolemFOFtoCNF_X(skolemFOFtoCNF_W,skolemFOFtoCNF_Z) = skolemFOFtoCNF_Z,
    inference(subst,[],[refute_0_27:[bind(X_21,$fot(skolemFOFtoCNF_Z))]]) ).

cnf(refute_0_29,plain,
    ( skolemFOFtoCNF_X(skolemFOFtoCNF_W,skolemFOFtoCNF_Z) != skolemFOFtoCNF_Z
    | skolemFOFtoCNF_Z != skolemFOFtoCNF_Z
    | skolemFOFtoCNF_X(skolemFOFtoCNF_W,skolemFOFtoCNF_Z) = skolemFOFtoCNF_Z ),
    introduced(tautology,[equality,[$cnf( ~ $equal(skolemFOFtoCNF_X(skolemFOFtoCNF_W,skolemFOFtoCNF_Z),skolemFOFtoCNF_Z) ),[0],$fot(skolemFOFtoCNF_Z)]]) ).

cnf(refute_0_30,plain,
    ( skolemFOFtoCNF_Z != skolemFOFtoCNF_Z
    | skolemFOFtoCNF_X(skolemFOFtoCNF_W,skolemFOFtoCNF_Z) = skolemFOFtoCNF_Z ),
    inference(resolve,[$cnf( $equal(skolemFOFtoCNF_X(skolemFOFtoCNF_W,skolemFOFtoCNF_Z),skolemFOFtoCNF_Z) )],[refute_0_28,refute_0_29]) ).

cnf(refute_0_31,plain,
    ( skolemFOFtoCNF_Y(skolemFOFtoCNF_W) != skolemFOFtoCNF_W
    | skolemFOFtoCNF_Z != skolemFOFtoCNF_Z
    | ~ big_f(skolemFOFtoCNF_Z,skolemFOFtoCNF_W) ),
    inference(resolve,[$cnf( $equal(skolemFOFtoCNF_X(skolemFOFtoCNF_W,skolemFOFtoCNF_Z),skolemFOFtoCNF_Z) )],[refute_0_30,refute_0_5]) ).

cnf(refute_0_32,plain,
    skolemFOFtoCNF_Z = skolemFOFtoCNF_Z,
    introduced(tautology,[refl,[$fot(skolemFOFtoCNF_Z)]]) ).

cnf(refute_0_33,plain,
    ( skolemFOFtoCNF_Y(skolemFOFtoCNF_W) != skolemFOFtoCNF_W
    | ~ big_f(skolemFOFtoCNF_Z,skolemFOFtoCNF_W) ),
    inference(resolve,[$cnf( $equal(skolemFOFtoCNF_Z,skolemFOFtoCNF_Z) )],[refute_0_32,refute_0_31]) ).

cnf(refute_0_34,plain,
    ( skolemFOFtoCNF_W != skolemFOFtoCNF_W
    | ~ big_f(skolemFOFtoCNF_Z,skolemFOFtoCNF_W) ),
    inference(resolve,[$cnf( $equal(skolemFOFtoCNF_Y(skolemFOFtoCNF_W),skolemFOFtoCNF_W) )],[refute_0_22,refute_0_33]) ).

cnf(refute_0_35,plain,
    ~ big_f(skolemFOFtoCNF_Z,skolemFOFtoCNF_W),
    inference(resolve,[$cnf( $equal(skolemFOFtoCNF_W,skolemFOFtoCNF_W) )],[refute_0_24,refute_0_34]) ).

cnf(refute_0_36,plain,
    ( X != skolemFOFtoCNF_Z
    | Y != skolemFOFtoCNF_W
    | big_f(X,Y) ),
    inference(canonicalize,[],[normalize_0_13]) ).

cnf(refute_0_37,plain,
    ( skolemFOFtoCNF_W != skolemFOFtoCNF_W
    | skolemFOFtoCNF_Z != skolemFOFtoCNF_Z
    | big_f(skolemFOFtoCNF_Z,skolemFOFtoCNF_W) ),
    inference(subst,[],[refute_0_36:[bind(X,$fot(skolemFOFtoCNF_Z)),bind(Y,$fot(skolemFOFtoCNF_W))]]) ).

cnf(refute_0_38,plain,
    ( skolemFOFtoCNF_Z != skolemFOFtoCNF_Z
    | big_f(skolemFOFtoCNF_Z,skolemFOFtoCNF_W) ),
    inference(resolve,[$cnf( $equal(skolemFOFtoCNF_W,skolemFOFtoCNF_W) )],[refute_0_24,refute_0_37]) ).

cnf(refute_0_39,plain,
    big_f(skolemFOFtoCNF_Z,skolemFOFtoCNF_W),
    inference(resolve,[$cnf( $equal(skolemFOFtoCNF_Z,skolemFOFtoCNF_Z) )],[refute_0_32,refute_0_38]) ).

cnf(refute_0_40,plain,
    $false,
    inference(resolve,[$cnf( big_f(skolemFOFtoCNF_Z,skolemFOFtoCNF_W) )],[refute_0_39,refute_0_35]) ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.12  % Problem  : SYN075+1 : TPTP v8.1.0. Released v2.0.0.
% 0.12/0.13  % Command  : metis --show proof --show saturation %s
% 0.12/0.33  % Computer : n008.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 : Tue Jul 12 05:37:08 EDT 2022
% 0.18/0.34  % CPUTime  : 
% 0.18/0.34  %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% 0.18/0.35  % SZS status Theorem for /export/starexec/sandbox2/benchmark/theBenchmark.p
% 0.18/0.35  
% 0.18/0.35  % SZS output start CNFRefutation for /export/starexec/sandbox2/benchmark/theBenchmark.p
% See solution above
% 0.18/0.35  
%------------------------------------------------------------------------------