TSTP Solution File: SWV393+1 by Metis---2.4

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : Metis---2.4
% Problem  : SWV393+1 : TPTP v8.1.0. Released v3.3.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : metis --show proof --show saturation %s

% Computer : n019.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 : Wed Jul 20 20:31:28 EDT 2022

% Result   : Theorem 0.44s 0.62s
% Output   : CNFRefutation 0.44s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :   13
%            Number of leaves      :    6
% Syntax   : Number of formulae    :   38 (  16 unt;   0 def)
%            Number of atoms       :  116 (  45 equ)
%            Maximal formula atoms :   11 (   3 avg)
%            Number of connectives :  126 (  48   ~;  34   |;  26   &)
%                                         (   3 <=>;  15  =>;   0  <=;   0 <~>)
%            Maximal formula depth :   13 (   5 avg)
%            Maximal term depth    :    4 (   1 avg)
%            Number of predicates  :    5 (   2 usr;   1 prp; 0-3 aty)
%            Number of functors    :    8 (   8 usr;   5 con; 0-2 aty)
%            Number of variables   :   98 (   4 sgn  67   !;  18   ?)

% Comments : 
%------------------------------------------------------------------------------
fof(ax23,axiom,
    ! [U,V,W,X,Y] :
      ( pair_in_list(insert_slb(U,pair(V,X)),W,Y)
    <=> ( pair_in_list(U,W,Y)
        | ( V = W
          & X = Y ) ) ) ).

fof(ax24,axiom,
    ! [U,V,W] : remove_slb(insert_slb(U,pair(V,W)),V) = U ).

fof(l29_co,conjecture,
    ! [U] :
      ( ! [V,W] :
          ( pair_in_list(U,V,W)
         => ! [X] :
              ( contains_slb(U,X)
             => ( pair_in_list(remove_slb(U,X),V,W)
                | V = X ) ) )
     => ! [Y,Z,X1,X2] :
          ( pair_in_list(insert_slb(U,pair(X1,X2)),Y,Z)
         => ! [X1] :
              ( contains_slb(insert_slb(U,pair(X1,X2)),X1)
             => ( pair_in_list(remove_slb(insert_slb(U,pair(X1,X2)),X1),Y,Z)
                | Y = X1 ) ) ) ) ).

fof(subgoal_0,plain,
    ! [U] :
      ( ! [V,W] :
          ( pair_in_list(U,V,W)
         => ! [X] :
              ( contains_slb(U,X)
             => ( pair_in_list(remove_slb(U,X),V,W)
                | V = X ) ) )
     => ! [Y,Z,X1,X2] :
          ( pair_in_list(insert_slb(U,pair(X1,X2)),Y,Z)
         => ! [X1] :
              ( ( contains_slb(insert_slb(U,pair(X1,X2)),X1)
                & ~ pair_in_list(remove_slb(insert_slb(U,pair(X1,X2)),X1),Y,Z) )
             => Y = X1 ) ) ),
    inference(strip,[],[l29_co]) ).

fof(negate_0_0,plain,
    ~ ! [U] :
        ( ! [V,W] :
            ( pair_in_list(U,V,W)
           => ! [X] :
                ( contains_slb(U,X)
               => ( pair_in_list(remove_slb(U,X),V,W)
                  | V = X ) ) )
       => ! [Y,Z,X1,X2] :
            ( pair_in_list(insert_slb(U,pair(X1,X2)),Y,Z)
           => ! [X1] :
                ( ( contains_slb(insert_slb(U,pair(X1,X2)),X1)
                  & ~ pair_in_list(remove_slb(insert_slb(U,pair(X1,X2)),X1),Y,Z) )
               => Y = X1 ) ) ),
    inference(negate,[],[subgoal_0]) ).

fof(normalize_0_0,plain,
    ? [U] :
      ( ? [X1,X2,Y,Z] :
          ( pair_in_list(insert_slb(U,pair(X1,X2)),Y,Z)
          & ? [X1] :
              ( Y != X1
              & ~ pair_in_list(remove_slb(insert_slb(U,pair(X1,X2)),X1),Y,Z)
              & contains_slb(insert_slb(U,pair(X1,X2)),X1) ) )
      & ! [V,W] :
          ( ~ pair_in_list(U,V,W)
          | ! [X] :
              ( ~ contains_slb(U,X)
              | V = X
              | pair_in_list(remove_slb(U,X),V,W) ) ) ),
    inference(canonicalize,[],[negate_0_0]) ).

fof(normalize_0_1,plain,
    ( ? [X1,X2,Y,Z] :
        ( pair_in_list(insert_slb(skolemFOFtoCNF_U,pair(X1,X2)),Y,Z)
        & ? [X1] :
            ( Y != X1
            & ~ pair_in_list(remove_slb(insert_slb(skolemFOFtoCNF_U,pair(X1,X2)),X1),Y,Z)
            & contains_slb(insert_slb(skolemFOFtoCNF_U,pair(X1,X2)),X1) ) )
    & ! [V,W] :
        ( ~ pair_in_list(skolemFOFtoCNF_U,V,W)
        | ! [X] :
            ( ~ contains_slb(skolemFOFtoCNF_U,X)
            | V = X
            | pair_in_list(remove_slb(skolemFOFtoCNF_U,X),V,W) ) ) ),
    inference(skolemize,[],[normalize_0_0]) ).

fof(normalize_0_2,plain,
    ? [X1,X2,Y,Z] :
      ( pair_in_list(insert_slb(skolemFOFtoCNF_U,pair(X1,X2)),Y,Z)
      & ? [X1] :
          ( Y != X1
          & ~ pair_in_list(remove_slb(insert_slb(skolemFOFtoCNF_U,pair(X1,X2)),X1),Y,Z)
          & contains_slb(insert_slb(skolemFOFtoCNF_U,pair(X1,X2)),X1) ) ),
    inference(conjunct,[],[normalize_0_1]) ).

fof(normalize_0_3,plain,
    ( pair_in_list(insert_slb(skolemFOFtoCNF_U,pair(skolemFOFtoCNF_X1,skolemFOFtoCNF_X2)),skolemFOFtoCNF_Y,skolemFOFtoCNF_Z)
    & ? [X1] :
        ( skolemFOFtoCNF_Y != skolemFOFtoCNF_X1
        & ~ pair_in_list(remove_slb(insert_slb(skolemFOFtoCNF_U,pair(skolemFOFtoCNF_X1,skolemFOFtoCNF_X2)),skolemFOFtoCNF_X1),skolemFOFtoCNF_Y,skolemFOFtoCNF_Z)
        & contains_slb(insert_slb(skolemFOFtoCNF_U,pair(skolemFOFtoCNF_X1,skolemFOFtoCNF_X2)),skolemFOFtoCNF_X1) ) ),
    inference(skolemize,[],[normalize_0_2]) ).

fof(normalize_0_4,plain,
    pair_in_list(insert_slb(skolemFOFtoCNF_U,pair(skolemFOFtoCNF_X1,skolemFOFtoCNF_X2)),skolemFOFtoCNF_Y,skolemFOFtoCNF_Z),
    inference(conjunct,[],[normalize_0_3]) ).

fof(normalize_0_5,plain,
    ! [U,V,W,X,Y] :
      ( ~ pair_in_list(insert_slb(U,pair(V,X)),W,Y)
    <=> ( ~ pair_in_list(U,W,Y)
        & ( V != W
          | X != Y ) ) ),
    inference(canonicalize,[],[ax23]) ).

fof(normalize_0_6,plain,
    ! [U,V,W,X,Y] :
      ( ~ pair_in_list(insert_slb(U,pair(V,X)),W,Y)
    <=> ( ~ pair_in_list(U,W,Y)
        & ( V != W
          | X != Y ) ) ),
    inference(specialize,[],[normalize_0_5]) ).

fof(normalize_0_7,plain,
    ! [U,V,W,X,Y] :
      ( ( ~ pair_in_list(U,W,Y)
        | pair_in_list(insert_slb(U,pair(V,X)),W,Y) )
      & ( V != W
        | X != Y
        | pair_in_list(insert_slb(U,pair(V,X)),W,Y) )
      & ( ~ pair_in_list(insert_slb(U,pair(V,X)),W,Y)
        | V = W
        | pair_in_list(U,W,Y) )
      & ( ~ pair_in_list(insert_slb(U,pair(V,X)),W,Y)
        | X = Y
        | pair_in_list(U,W,Y) ) ),
    inference(clausify,[],[normalize_0_6]) ).

fof(normalize_0_8,plain,
    ! [U,V,W,X,Y] :
      ( ~ pair_in_list(insert_slb(U,pair(V,X)),W,Y)
      | V = W
      | pair_in_list(U,W,Y) ),
    inference(conjunct,[],[normalize_0_7]) ).

fof(normalize_0_9,plain,
    ? [X1] :
      ( skolemFOFtoCNF_Y != skolemFOFtoCNF_X1
      & ~ pair_in_list(remove_slb(insert_slb(skolemFOFtoCNF_U,pair(skolemFOFtoCNF_X1,skolemFOFtoCNF_X2)),skolemFOFtoCNF_X1),skolemFOFtoCNF_Y,skolemFOFtoCNF_Z)
      & contains_slb(insert_slb(skolemFOFtoCNF_U,pair(skolemFOFtoCNF_X1,skolemFOFtoCNF_X2)),skolemFOFtoCNF_X1) ),
    inference(conjunct,[],[normalize_0_3]) ).

fof(normalize_0_10,plain,
    ( skolemFOFtoCNF_Y != skolemFOFtoCNF_X1
    & ~ pair_in_list(remove_slb(insert_slb(skolemFOFtoCNF_U,pair(skolemFOFtoCNF_X1,skolemFOFtoCNF_X2)),skolemFOFtoCNF_X1),skolemFOFtoCNF_Y,skolemFOFtoCNF_Z)
    & contains_slb(insert_slb(skolemFOFtoCNF_U,pair(skolemFOFtoCNF_X1,skolemFOFtoCNF_X2)),skolemFOFtoCNF_X1) ),
    inference(skolemize,[],[normalize_0_9]) ).

fof(normalize_0_11,plain,
    skolemFOFtoCNF_Y != skolemFOFtoCNF_X1,
    inference(conjunct,[],[normalize_0_10]) ).

fof(normalize_0_12,plain,
    ~ pair_in_list(remove_slb(insert_slb(skolemFOFtoCNF_U,pair(skolemFOFtoCNF_X1,skolemFOFtoCNF_X2)),skolemFOFtoCNF_X1),skolemFOFtoCNF_Y,skolemFOFtoCNF_Z),
    inference(conjunct,[],[normalize_0_10]) ).

fof(normalize_0_13,plain,
    ! [U,V,W] : remove_slb(insert_slb(U,pair(V,W)),V) = U,
    inference(canonicalize,[],[ax24]) ).

fof(normalize_0_14,plain,
    ! [U,V,W] : remove_slb(insert_slb(U,pair(V,W)),V) = U,
    inference(specialize,[],[normalize_0_13]) ).

cnf(refute_0_0,plain,
    pair_in_list(insert_slb(skolemFOFtoCNF_U,pair(skolemFOFtoCNF_X1,skolemFOFtoCNF_X2)),skolemFOFtoCNF_Y,skolemFOFtoCNF_Z),
    inference(canonicalize,[],[normalize_0_4]) ).

cnf(refute_0_1,plain,
    ( ~ pair_in_list(insert_slb(U,pair(V,X)),W,Y)
    | V = W
    | pair_in_list(U,W,Y) ),
    inference(canonicalize,[],[normalize_0_8]) ).

cnf(refute_0_2,plain,
    ( ~ pair_in_list(insert_slb(skolemFOFtoCNF_U,pair(skolemFOFtoCNF_X1,skolemFOFtoCNF_X2)),skolemFOFtoCNF_Y,skolemFOFtoCNF_Z)
    | skolemFOFtoCNF_X1 = skolemFOFtoCNF_Y
    | pair_in_list(skolemFOFtoCNF_U,skolemFOFtoCNF_Y,skolemFOFtoCNF_Z) ),
    inference(subst,[],[refute_0_1:[bind(U,$fot(skolemFOFtoCNF_U)),bind(V,$fot(skolemFOFtoCNF_X1)),bind(W,$fot(skolemFOFtoCNF_Y)),bind(X,$fot(skolemFOFtoCNF_X2)),bind(Y,$fot(skolemFOFtoCNF_Z))]]) ).

cnf(refute_0_3,plain,
    ( skolemFOFtoCNF_X1 = skolemFOFtoCNF_Y
    | pair_in_list(skolemFOFtoCNF_U,skolemFOFtoCNF_Y,skolemFOFtoCNF_Z) ),
    inference(resolve,[$cnf( pair_in_list(insert_slb(skolemFOFtoCNF_U,pair(skolemFOFtoCNF_X1,skolemFOFtoCNF_X2)),skolemFOFtoCNF_Y,skolemFOFtoCNF_Z) )],[refute_0_0,refute_0_2]) ).

cnf(refute_0_4,plain,
    skolemFOFtoCNF_Y != skolemFOFtoCNF_X1,
    inference(canonicalize,[],[normalize_0_11]) ).

cnf(refute_0_5,plain,
    X0 = X0,
    introduced(tautology,[refl,[$fot(X0)]]) ).

cnf(refute_0_6,plain,
    ( X0 != X0
    | X0 != Y0
    | Y0 = X0 ),
    introduced(tautology,[equality,[$cnf( $equal(X0,X0) ),[0],$fot(Y0)]]) ).

cnf(refute_0_7,plain,
    ( X0 != Y0
    | Y0 = X0 ),
    inference(resolve,[$cnf( $equal(X0,X0) )],[refute_0_5,refute_0_6]) ).

cnf(refute_0_8,plain,
    ( skolemFOFtoCNF_X1 != skolemFOFtoCNF_Y
    | skolemFOFtoCNF_Y = skolemFOFtoCNF_X1 ),
    inference(subst,[],[refute_0_7:[bind(X0,$fot(skolemFOFtoCNF_X1)),bind(Y0,$fot(skolemFOFtoCNF_Y))]]) ).

cnf(refute_0_9,plain,
    skolemFOFtoCNF_X1 != skolemFOFtoCNF_Y,
    inference(resolve,[$cnf( $equal(skolemFOFtoCNF_Y,skolemFOFtoCNF_X1) )],[refute_0_8,refute_0_4]) ).

cnf(refute_0_10,plain,
    pair_in_list(skolemFOFtoCNF_U,skolemFOFtoCNF_Y,skolemFOFtoCNF_Z),
    inference(resolve,[$cnf( $equal(skolemFOFtoCNF_X1,skolemFOFtoCNF_Y) )],[refute_0_3,refute_0_9]) ).

cnf(refute_0_11,plain,
    ~ pair_in_list(remove_slb(insert_slb(skolemFOFtoCNF_U,pair(skolemFOFtoCNF_X1,skolemFOFtoCNF_X2)),skolemFOFtoCNF_X1),skolemFOFtoCNF_Y,skolemFOFtoCNF_Z),
    inference(canonicalize,[],[normalize_0_12]) ).

cnf(refute_0_12,plain,
    remove_slb(insert_slb(U,pair(V,W)),V) = U,
    inference(canonicalize,[],[normalize_0_14]) ).

cnf(refute_0_13,plain,
    remove_slb(insert_slb(skolemFOFtoCNF_U,pair(skolemFOFtoCNF_X1,skolemFOFtoCNF_X2)),skolemFOFtoCNF_X1) = skolemFOFtoCNF_U,
    inference(subst,[],[refute_0_12:[bind(U,$fot(skolemFOFtoCNF_U)),bind(V,$fot(skolemFOFtoCNF_X1)),bind(W,$fot(skolemFOFtoCNF_X2))]]) ).

cnf(refute_0_14,plain,
    ( remove_slb(insert_slb(skolemFOFtoCNF_U,pair(skolemFOFtoCNF_X1,skolemFOFtoCNF_X2)),skolemFOFtoCNF_X1) != skolemFOFtoCNF_U
    | ~ pair_in_list(skolemFOFtoCNF_U,skolemFOFtoCNF_Y,skolemFOFtoCNF_Z)
    | pair_in_list(remove_slb(insert_slb(skolemFOFtoCNF_U,pair(skolemFOFtoCNF_X1,skolemFOFtoCNF_X2)),skolemFOFtoCNF_X1),skolemFOFtoCNF_Y,skolemFOFtoCNF_Z) ),
    introduced(tautology,[equality,[$cnf( ~ pair_in_list(remove_slb(insert_slb(skolemFOFtoCNF_U,pair(skolemFOFtoCNF_X1,skolemFOFtoCNF_X2)),skolemFOFtoCNF_X1),skolemFOFtoCNF_Y,skolemFOFtoCNF_Z) ),[0],$fot(skolemFOFtoCNF_U)]]) ).

cnf(refute_0_15,plain,
    ( ~ pair_in_list(skolemFOFtoCNF_U,skolemFOFtoCNF_Y,skolemFOFtoCNF_Z)
    | pair_in_list(remove_slb(insert_slb(skolemFOFtoCNF_U,pair(skolemFOFtoCNF_X1,skolemFOFtoCNF_X2)),skolemFOFtoCNF_X1),skolemFOFtoCNF_Y,skolemFOFtoCNF_Z) ),
    inference(resolve,[$cnf( $equal(remove_slb(insert_slb(skolemFOFtoCNF_U,pair(skolemFOFtoCNF_X1,skolemFOFtoCNF_X2)),skolemFOFtoCNF_X1),skolemFOFtoCNF_U) )],[refute_0_13,refute_0_14]) ).

cnf(refute_0_16,plain,
    ~ pair_in_list(skolemFOFtoCNF_U,skolemFOFtoCNF_Y,skolemFOFtoCNF_Z),
    inference(resolve,[$cnf( pair_in_list(remove_slb(insert_slb(skolemFOFtoCNF_U,pair(skolemFOFtoCNF_X1,skolemFOFtoCNF_X2)),skolemFOFtoCNF_X1),skolemFOFtoCNF_Y,skolemFOFtoCNF_Z) )],[refute_0_15,refute_0_11]) ).

cnf(refute_0_17,plain,
    $false,
    inference(resolve,[$cnf( pair_in_list(skolemFOFtoCNF_U,skolemFOFtoCNF_Y,skolemFOFtoCNF_Z) )],[refute_0_10,refute_0_16]) ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.10/0.12  % Problem  : SWV393+1 : TPTP v8.1.0. Released v3.3.0.
% 0.10/0.12  % Command  : metis --show proof --show saturation %s
% 0.12/0.33  % Computer : n019.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 Jun 14 22:23:24 EDT 2022
% 0.12/0.33  % CPUTime  : 
% 0.12/0.34  %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% 0.44/0.62  % SZS status Theorem for /export/starexec/sandbox/benchmark/theBenchmark.p
% 0.44/0.62  
% 0.44/0.62  % SZS output start CNFRefutation for /export/starexec/sandbox/benchmark/theBenchmark.p
% See solution above
% 0.44/0.62  
%------------------------------------------------------------------------------