TSTP Solution File: SET959+1 by Drodi---3.5.1

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : Drodi---3.5.1
% Problem  : SET959+1 : TPTP v8.1.2. Bugfixed v4.0.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : drodi -learnfrom(drodi.lrn) -timeout(%d) %s

% Computer : n004.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  : 300s
% DateTime : Wed May 31 12:35:37 EDT 2023

% Result   : Theorem 0.15s 0.33s
% Output   : CNFRefutation 0.15s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :   10
%            Number of leaves      :    9
% Syntax   : Number of formulae    :   57 (   3 unt;   0 def)
%            Number of atoms       :  179 (  45 equ)
%            Maximal formula atoms :    9 (   3 avg)
%            Number of connectives :  196 (  74   ~;  82   |;  25   &)
%                                         (  11 <=>;   3  =>;   0  <=;   1 <~>)
%            Maximal formula depth :   13 (   4 avg)
%            Maximal term depth    :    4 (   1 avg)
%            Number of predicates  :   10 (   8 usr;   8 prp; 0-2 aty)
%            Number of functors    :    8 (   8 usr;   2 con; 0-2 aty)
%            Number of variables   :   81 (;  61   !;  20   ?)

% Comments : 
%------------------------------------------------------------------------------
fof(f7,conjecture,
    ! [A,B] :
      ( ( ! [C] :
            ~ ( in(C,A)
              & ! [D,E] : C != ordered_pair(D,E) )
        & ! [C] :
            ~ ( in(C,B)
              & ! [D,E] : C != ordered_pair(D,E) )
        & ! [C,D] :
            ( in(ordered_pair(C,D),A)
          <=> in(ordered_pair(C,D),B) ) )
     => A = B ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p') ).

fof(f8,negated_conjecture,
    ~ ! [A,B] :
        ( ( ! [C] :
              ~ ( in(C,A)
                & ! [D,E] : C != ordered_pair(D,E) )
          & ! [C] :
              ~ ( in(C,B)
                & ! [D,E] : C != ordered_pair(D,E) )
          & ! [C,D] :
              ( in(ordered_pair(C,D),A)
            <=> in(ordered_pair(C,D),B) ) )
       => A = B ),
    inference(negated_conjecture,[status(cth)],[f7]) ).

fof(f9,axiom,
    ! [A,B] :
      ( ! [C] :
          ( in(C,A)
        <=> in(C,B) )
     => A = B ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p') ).

fof(f19,plain,
    ? [A,B] :
      ( ! [C] :
          ( ~ in(C,A)
          | ? [D,E] : C = ordered_pair(D,E) )
      & ! [C] :
          ( ~ in(C,B)
          | ? [D,E] : C = ordered_pair(D,E) )
      & ! [C,D] :
          ( in(ordered_pair(C,D),A)
        <=> in(ordered_pair(C,D),B) )
      & A != B ),
    inference(pre_NNF_transformation,[status(esa)],[f8]) ).

fof(f20,plain,
    ? [A,B] :
      ( ! [C] :
          ( ~ in(C,A)
          | ? [D,E] : C = ordered_pair(D,E) )
      & ! [C] :
          ( ~ in(C,B)
          | ? [D,E] : C = ordered_pair(D,E) )
      & ! [C,D] :
          ( ( ~ in(ordered_pair(C,D),A)
            | in(ordered_pair(C,D),B) )
          & ( in(ordered_pair(C,D),A)
            | ~ in(ordered_pair(C,D),B) ) )
      & A != B ),
    inference(NNF_transformation,[status(esa)],[f19]) ).

fof(f21,plain,
    ? [A,B] :
      ( ! [C] :
          ( ~ in(C,A)
          | ? [D,E] : C = ordered_pair(D,E) )
      & ! [C] :
          ( ~ in(C,B)
          | ? [D,E] : C = ordered_pair(D,E) )
      & ! [C,D] :
          ( ~ in(ordered_pair(C,D),A)
          | in(ordered_pair(C,D),B) )
      & ! [C,D] :
          ( in(ordered_pair(C,D),A)
          | ~ in(ordered_pair(C,D),B) )
      & A != B ),
    inference(miniscoping,[status(esa)],[f20]) ).

fof(f22,plain,
    ( ! [C] :
        ( ~ in(C,sk0_2)
        | C = ordered_pair(sk0_4(C),sk0_5(C)) )
    & ! [C] :
        ( ~ in(C,sk0_3)
        | C = ordered_pair(sk0_6(C),sk0_7(C)) )
    & ! [C,D] :
        ( ~ in(ordered_pair(C,D),sk0_2)
        | in(ordered_pair(C,D),sk0_3) )
    & ! [C,D] :
        ( in(ordered_pair(C,D),sk0_2)
        | ~ in(ordered_pair(C,D),sk0_3) )
    & sk0_2 != sk0_3 ),
    inference(skolemization,[status(esa)],[f21]) ).

fof(f23,plain,
    ! [X0] :
      ( ~ in(X0,sk0_2)
      | X0 = ordered_pair(sk0_4(X0),sk0_5(X0)) ),
    inference(cnf_transformation,[status(esa)],[f22]) ).

fof(f24,plain,
    ! [X0] :
      ( ~ in(X0,sk0_3)
      | X0 = ordered_pair(sk0_6(X0),sk0_7(X0)) ),
    inference(cnf_transformation,[status(esa)],[f22]) ).

fof(f25,plain,
    ! [X0,X1] :
      ( ~ in(ordered_pair(X0,X1),sk0_2)
      | in(ordered_pair(X0,X1),sk0_3) ),
    inference(cnf_transformation,[status(esa)],[f22]) ).

fof(f26,plain,
    ! [X0,X1] :
      ( in(ordered_pair(X0,X1),sk0_2)
      | ~ in(ordered_pair(X0,X1),sk0_3) ),
    inference(cnf_transformation,[status(esa)],[f22]) ).

fof(f27,plain,
    sk0_2 != sk0_3,
    inference(cnf_transformation,[status(esa)],[f22]) ).

fof(f28,plain,
    ! [A,B] :
      ( ? [C] :
          ( in(C,A)
        <~> in(C,B) )
      | A = B ),
    inference(pre_NNF_transformation,[status(esa)],[f9]) ).

fof(f29,plain,
    ! [A,B] :
      ( ? [C] :
          ( ( in(C,A)
            | in(C,B) )
          & ( ~ in(C,A)
            | ~ in(C,B) ) )
      | A = B ),
    inference(NNF_transformation,[status(esa)],[f28]) ).

fof(f30,plain,
    ! [A,B] :
      ( ( ( in(sk0_8(B,A),A)
          | in(sk0_8(B,A),B) )
        & ( ~ in(sk0_8(B,A),A)
          | ~ in(sk0_8(B,A),B) ) )
      | A = B ),
    inference(skolemization,[status(esa)],[f29]) ).

fof(f31,plain,
    ! [X0,X1] :
      ( in(sk0_8(X0,X1),X1)
      | in(sk0_8(X0,X1),X0)
      | X1 = X0 ),
    inference(cnf_transformation,[status(esa)],[f30]) ).

fof(f32,plain,
    ! [X0,X1] :
      ( ~ in(sk0_8(X0,X1),X1)
      | ~ in(sk0_8(X0,X1),X0)
      | X1 = X0 ),
    inference(cnf_transformation,[status(esa)],[f30]) ).

fof(f52,plain,
    ! [X0] :
      ( in(sk0_8(X0,sk0_3),X0)
      | sk0_3 = X0
      | sk0_8(X0,sk0_3) = ordered_pair(sk0_6(sk0_8(X0,sk0_3)),sk0_7(sk0_8(X0,sk0_3))) ),
    inference(resolution,[status(thm)],[f31,f24]) ).

fof(f64,plain,
    ! [X0] :
      ( in(sk0_8(sk0_2,X0),X0)
      | X0 = sk0_2
      | sk0_8(sk0_2,X0) = ordered_pair(sk0_4(sk0_8(sk0_2,X0)),sk0_5(sk0_8(sk0_2,X0))) ),
    inference(resolution,[status(thm)],[f31,f23]) ).

fof(f68,plain,
    ( spl0_4
  <=> sk0_3 = sk0_2 ),
    introduced(split_symbol_definition) ).

fof(f69,plain,
    ( sk0_3 = sk0_2
    | ~ spl0_4 ),
    inference(component_clause,[status(thm)],[f68]) ).

fof(f71,plain,
    ( spl0_5
  <=> sk0_8(sk0_2,sk0_3) = ordered_pair(sk0_6(sk0_8(sk0_2,sk0_3)),sk0_7(sk0_8(sk0_2,sk0_3))) ),
    introduced(split_symbol_definition) ).

fof(f72,plain,
    ( sk0_8(sk0_2,sk0_3) = ordered_pair(sk0_6(sk0_8(sk0_2,sk0_3)),sk0_7(sk0_8(sk0_2,sk0_3)))
    | ~ spl0_5 ),
    inference(component_clause,[status(thm)],[f71]) ).

fof(f74,plain,
    ( spl0_6
  <=> sk0_8(sk0_2,sk0_3) = ordered_pair(sk0_4(sk0_8(sk0_2,sk0_3)),sk0_5(sk0_8(sk0_2,sk0_3))) ),
    introduced(split_symbol_definition) ).

fof(f75,plain,
    ( sk0_8(sk0_2,sk0_3) = ordered_pair(sk0_4(sk0_8(sk0_2,sk0_3)),sk0_5(sk0_8(sk0_2,sk0_3)))
    | ~ spl0_6 ),
    inference(component_clause,[status(thm)],[f74]) ).

fof(f77,plain,
    ( sk0_3 = sk0_2
    | sk0_8(sk0_2,sk0_3) = ordered_pair(sk0_6(sk0_8(sk0_2,sk0_3)),sk0_7(sk0_8(sk0_2,sk0_3)))
    | sk0_8(sk0_2,sk0_3) = ordered_pair(sk0_4(sk0_8(sk0_2,sk0_3)),sk0_5(sk0_8(sk0_2,sk0_3))) ),
    inference(resolution,[status(thm)],[f52,f23]) ).

fof(f78,plain,
    ( spl0_4
    | spl0_5
    | spl0_6 ),
    inference(split_clause,[status(thm)],[f77,f68,f71,f74]) ).

fof(f91,plain,
    ( $false
    | ~ spl0_4 ),
    inference(forward_subsumption_resolution,[status(thm)],[f69,f27]) ).

fof(f92,plain,
    ~ spl0_4,
    inference(contradiction_clause,[status(thm)],[f91]) ).

fof(f312,plain,
    ( spl0_11
  <=> in(ordered_pair(sk0_6(sk0_8(sk0_2,sk0_3)),sk0_7(sk0_8(sk0_2,sk0_3))),sk0_2) ),
    introduced(split_symbol_definition) ).

fof(f313,plain,
    ( in(ordered_pair(sk0_6(sk0_8(sk0_2,sk0_3)),sk0_7(sk0_8(sk0_2,sk0_3))),sk0_2)
    | ~ spl0_11 ),
    inference(component_clause,[status(thm)],[f312]) ).

fof(f315,plain,
    ( spl0_12
  <=> in(sk0_8(sk0_2,sk0_3),sk0_3) ),
    introduced(split_symbol_definition) ).

fof(f316,plain,
    ( in(sk0_8(sk0_2,sk0_3),sk0_3)
    | ~ spl0_12 ),
    inference(component_clause,[status(thm)],[f315]) ).

fof(f317,plain,
    ( ~ in(sk0_8(sk0_2,sk0_3),sk0_3)
    | spl0_12 ),
    inference(component_clause,[status(thm)],[f315]) ).

fof(f318,plain,
    ( in(ordered_pair(sk0_6(sk0_8(sk0_2,sk0_3)),sk0_7(sk0_8(sk0_2,sk0_3))),sk0_2)
    | ~ in(sk0_8(sk0_2,sk0_3),sk0_3)
    | ~ spl0_5 ),
    inference(paramodulation,[status(thm)],[f72,f26]) ).

fof(f319,plain,
    ( spl0_11
    | ~ spl0_12
    | ~ spl0_5 ),
    inference(split_clause,[status(thm)],[f318,f312,f315,f71]) ).

fof(f320,plain,
    ( spl0_13
  <=> in(sk0_8(sk0_2,sk0_3),sk0_2) ),
    introduced(split_symbol_definition) ).

fof(f322,plain,
    ( ~ in(sk0_8(sk0_2,sk0_3),sk0_2)
    | spl0_13 ),
    inference(component_clause,[status(thm)],[f320]) ).

fof(f328,plain,
    ( sk0_3 = sk0_2
    | sk0_8(sk0_2,sk0_3) = ordered_pair(sk0_4(sk0_8(sk0_2,sk0_3)),sk0_5(sk0_8(sk0_2,sk0_3)))
    | spl0_12 ),
    inference(resolution,[status(thm)],[f317,f64]) ).

fof(f329,plain,
    ( spl0_4
    | spl0_6
    | spl0_12 ),
    inference(split_clause,[status(thm)],[f328,f68,f74,f315]) ).

fof(f330,plain,
    ( in(sk0_8(sk0_2,sk0_3),sk0_2)
    | sk0_3 = sk0_2
    | spl0_12 ),
    inference(resolution,[status(thm)],[f317,f31]) ).

fof(f331,plain,
    ( spl0_13
    | spl0_4
    | spl0_12 ),
    inference(split_clause,[status(thm)],[f330,f320,f68,f315]) ).

fof(f332,plain,
    ( in(sk0_8(sk0_2,sk0_3),sk0_2)
    | ~ spl0_5
    | ~ spl0_11 ),
    inference(forward_demodulation,[status(thm)],[f72,f313]) ).

fof(f340,plain,
    ( $false
    | ~ spl0_5
    | ~ spl0_11
    | spl0_13 ),
    inference(forward_subsumption_resolution,[status(thm)],[f322,f332]) ).

fof(f341,plain,
    ( ~ spl0_5
    | ~ spl0_11
    | spl0_13 ),
    inference(contradiction_clause,[status(thm)],[f340]) ).

fof(f366,plain,
    ( ~ in(sk0_8(sk0_2,sk0_3),sk0_2)
    | sk0_3 = sk0_2
    | ~ spl0_12 ),
    inference(resolution,[status(thm)],[f316,f32]) ).

fof(f367,plain,
    ( ~ spl0_13
    | spl0_4
    | ~ spl0_12 ),
    inference(split_clause,[status(thm)],[f366,f320,f68,f315]) ).

fof(f368,plain,
    ( sk0_8(sk0_2,sk0_3) = ordered_pair(sk0_6(sk0_8(sk0_2,sk0_3)),sk0_7(sk0_8(sk0_2,sk0_3)))
    | ~ spl0_12 ),
    inference(resolution,[status(thm)],[f316,f24]) ).

fof(f369,plain,
    ( spl0_5
    | ~ spl0_12 ),
    inference(split_clause,[status(thm)],[f368,f71,f315]) ).

fof(f469,plain,
    ( spl0_26
  <=> in(ordered_pair(sk0_4(sk0_8(sk0_2,sk0_3)),sk0_5(sk0_8(sk0_2,sk0_3))),sk0_3) ),
    introduced(split_symbol_definition) ).

fof(f470,plain,
    ( in(ordered_pair(sk0_4(sk0_8(sk0_2,sk0_3)),sk0_5(sk0_8(sk0_2,sk0_3))),sk0_3)
    | ~ spl0_26 ),
    inference(component_clause,[status(thm)],[f469]) ).

fof(f472,plain,
    ( ~ in(sk0_8(sk0_2,sk0_3),sk0_2)
    | in(ordered_pair(sk0_4(sk0_8(sk0_2,sk0_3)),sk0_5(sk0_8(sk0_2,sk0_3))),sk0_3)
    | ~ spl0_6 ),
    inference(paramodulation,[status(thm)],[f75,f25]) ).

fof(f473,plain,
    ( ~ spl0_13
    | spl0_26
    | ~ spl0_6 ),
    inference(split_clause,[status(thm)],[f472,f320,f469,f74]) ).

fof(f474,plain,
    ( in(sk0_8(sk0_2,sk0_3),sk0_3)
    | ~ spl0_6
    | ~ spl0_26 ),
    inference(forward_demodulation,[status(thm)],[f75,f470]) ).

fof(f475,plain,
    ( $false
    | spl0_12
    | ~ spl0_6
    | ~ spl0_26 ),
    inference(forward_subsumption_resolution,[status(thm)],[f474,f317]) ).

fof(f476,plain,
    ( spl0_12
    | ~ spl0_6
    | ~ spl0_26 ),
    inference(contradiction_clause,[status(thm)],[f475]) ).

fof(f477,plain,
    $false,
    inference(sat_refutation,[status(thm)],[f78,f92,f319,f329,f331,f341,f367,f369,f473,f476]) ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.05/0.10  % Problem  : SET959+1 : TPTP v8.1.2. Bugfixed v4.0.0.
% 0.05/0.11  % Command  : drodi -learnfrom(drodi.lrn) -timeout(%d) %s
% 0.10/0.31  % Computer : n004.cluster.edu
% 0.10/0.31  % Model    : x86_64 x86_64
% 0.10/0.31  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.10/0.31  % Memory   : 8042.1875MB
% 0.10/0.31  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.10/0.31  % CPULimit : 300
% 0.10/0.31  % WCLimit  : 300
% 0.10/0.31  % DateTime : Tue May 30 10:12:22 EDT 2023
% 0.15/0.32  % CPUTime  : 
% 0.15/0.32  % Drodi V3.5.1
% 0.15/0.33  % Refutation found
% 0.15/0.33  % SZS status Theorem for theBenchmark: Theorem is valid
% 0.15/0.33  % SZS output start CNFRefutation for theBenchmark
% See solution above
% 0.17/0.57  % Elapsed time: 0.040218 seconds
% 0.17/0.57  % CPU time: 0.023186 seconds
% 0.17/0.57  % Memory used: 3.968 MB
%------------------------------------------------------------------------------