TSTP Solution File: SET015+4 by Drodi---3.6.0

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%------------------------------------------------------------------------------
% File     : Drodi---3.6.0
% Problem  : SET015+4 : TPTP v8.1.2. Released v2.2.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : drodi -learnfrom(drodi.lrn) -timeout(%d) %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  : 300s
% DateTime : Tue Apr 30 20:38:39 EDT 2024

% Result   : Theorem 0.14s 0.38s
% Output   : CNFRefutation 0.14s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :   10
%            Number of leaves      :   10
% Syntax   : Number of formulae    :   56 (   6 unt;   0 def)
%            Number of atoms       :  149 (   0 equ)
%            Maximal formula atoms :    6 (   2 avg)
%            Number of connectives :  149 (  56   ~;  67   |;  15   &)
%                                         (  10 <=>;   1  =>;   0  <=;   0 <~>)
%            Maximal formula depth :    8 (   4 avg)
%            Maximal term depth    :    3 (   1 avg)
%            Number of predicates  :   10 (   9 usr;   7 prp; 0-2 aty)
%            Number of functors    :    4 (   4 usr;   2 con; 0-2 aty)
%            Number of variables   :   71 (  67   !;   4   ?)

% Comments : 
%------------------------------------------------------------------------------
fof(f1,axiom,
    ! [A,B] :
      ( subset(A,B)
    <=> ! [X] :
          ( member(X,A)
         => member(X,B) ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p') ).

fof(f2,axiom,
    ! [A,B] :
      ( equal_set(A,B)
    <=> ( subset(A,B)
        & subset(B,A) ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p') ).

fof(f5,axiom,
    ! [X,A,B] :
      ( member(X,union(A,B))
    <=> ( member(X,A)
        | member(X,B) ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p') ).

fof(f12,conjecture,
    ! [A,B] : equal_set(union(A,B),union(B,A)),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p') ).

fof(f13,negated_conjecture,
    ~ ! [A,B] : equal_set(union(A,B),union(B,A)),
    inference(negated_conjecture,[status(cth)],[f12]) ).

fof(f14,plain,
    ! [A,B] :
      ( subset(A,B)
    <=> ! [X] :
          ( ~ member(X,A)
          | member(X,B) ) ),
    inference(pre_NNF_transformation,[status(esa)],[f1]) ).

fof(f15,plain,
    ! [A,B] :
      ( ( ~ subset(A,B)
        | ! [X] :
            ( ~ member(X,A)
            | member(X,B) ) )
      & ( subset(A,B)
        | ? [X] :
            ( member(X,A)
            & ~ member(X,B) ) ) ),
    inference(NNF_transformation,[status(esa)],[f14]) ).

fof(f16,plain,
    ( ! [A,B] :
        ( ~ subset(A,B)
        | ! [X] :
            ( ~ member(X,A)
            | member(X,B) ) )
    & ! [A,B] :
        ( subset(A,B)
        | ? [X] :
            ( member(X,A)
            & ~ member(X,B) ) ) ),
    inference(miniscoping,[status(esa)],[f15]) ).

fof(f17,plain,
    ( ! [A,B] :
        ( ~ subset(A,B)
        | ! [X] :
            ( ~ member(X,A)
            | member(X,B) ) )
    & ! [A,B] :
        ( subset(A,B)
        | ( member(sk0_0(B,A),A)
          & ~ member(sk0_0(B,A),B) ) ) ),
    inference(skolemization,[status(esa)],[f16]) ).

fof(f19,plain,
    ! [X0,X1] :
      ( subset(X0,X1)
      | member(sk0_0(X1,X0),X0) ),
    inference(cnf_transformation,[status(esa)],[f17]) ).

fof(f20,plain,
    ! [X0,X1] :
      ( subset(X0,X1)
      | ~ member(sk0_0(X1,X0),X1) ),
    inference(cnf_transformation,[status(esa)],[f17]) ).

fof(f21,plain,
    ! [A,B] :
      ( ( ~ equal_set(A,B)
        | ( subset(A,B)
          & subset(B,A) ) )
      & ( equal_set(A,B)
        | ~ subset(A,B)
        | ~ subset(B,A) ) ),
    inference(NNF_transformation,[status(esa)],[f2]) ).

fof(f22,plain,
    ( ! [A,B] :
        ( ~ equal_set(A,B)
        | ( subset(A,B)
          & subset(B,A) ) )
    & ! [A,B] :
        ( equal_set(A,B)
        | ~ subset(A,B)
        | ~ subset(B,A) ) ),
    inference(miniscoping,[status(esa)],[f21]) ).

fof(f25,plain,
    ! [X0,X1] :
      ( equal_set(X0,X1)
      | ~ subset(X0,X1)
      | ~ subset(X1,X0) ),
    inference(cnf_transformation,[status(esa)],[f22]) ).

fof(f35,plain,
    ! [X,A,B] :
      ( ( ~ member(X,union(A,B))
        | member(X,A)
        | member(X,B) )
      & ( member(X,union(A,B))
        | ( ~ member(X,A)
          & ~ member(X,B) ) ) ),
    inference(NNF_transformation,[status(esa)],[f5]) ).

fof(f36,plain,
    ( ! [X,A,B] :
        ( ~ member(X,union(A,B))
        | member(X,A)
        | member(X,B) )
    & ! [X,A,B] :
        ( member(X,union(A,B))
        | ( ~ member(X,A)
          & ~ member(X,B) ) ) ),
    inference(miniscoping,[status(esa)],[f35]) ).

fof(f37,plain,
    ! [X0,X1,X2] :
      ( ~ member(X0,union(X1,X2))
      | member(X0,X1)
      | member(X0,X2) ),
    inference(cnf_transformation,[status(esa)],[f36]) ).

fof(f38,plain,
    ! [X0,X1,X2] :
      ( member(X0,union(X1,X2))
      | ~ member(X0,X1) ),
    inference(cnf_transformation,[status(esa)],[f36]) ).

fof(f39,plain,
    ! [X0,X1,X2] :
      ( member(X0,union(X1,X2))
      | ~ member(X0,X2) ),
    inference(cnf_transformation,[status(esa)],[f36]) ).

fof(f68,plain,
    ? [A,B] : ~ equal_set(union(A,B),union(B,A)),
    inference(pre_NNF_transformation,[status(esa)],[f13]) ).

fof(f69,plain,
    ~ equal_set(union(sk0_3,sk0_4),union(sk0_4,sk0_3)),
    inference(skolemization,[status(esa)],[f68]) ).

fof(f70,plain,
    ~ equal_set(union(sk0_3,sk0_4),union(sk0_4,sk0_3)),
    inference(cnf_transformation,[status(esa)],[f69]) ).

fof(f74,plain,
    ( spl0_0
  <=> subset(union(sk0_3,sk0_4),union(sk0_4,sk0_3)) ),
    introduced(split_symbol_definition) ).

fof(f76,plain,
    ( ~ subset(union(sk0_3,sk0_4),union(sk0_4,sk0_3))
    | spl0_0 ),
    inference(component_clause,[status(thm)],[f74]) ).

fof(f77,plain,
    ( spl0_1
  <=> subset(union(sk0_4,sk0_3),union(sk0_3,sk0_4)) ),
    introduced(split_symbol_definition) ).

fof(f79,plain,
    ( ~ subset(union(sk0_4,sk0_3),union(sk0_3,sk0_4))
    | spl0_1 ),
    inference(component_clause,[status(thm)],[f77]) ).

fof(f80,plain,
    ( ~ subset(union(sk0_3,sk0_4),union(sk0_4,sk0_3))
    | ~ subset(union(sk0_4,sk0_3),union(sk0_3,sk0_4)) ),
    inference(resolution,[status(thm)],[f25,f70]) ).

fof(f81,plain,
    ( ~ spl0_0
    | ~ spl0_1 ),
    inference(split_clause,[status(thm)],[f80,f74,f77]) ).

fof(f83,plain,
    ! [X0,X1,X2] :
      ( subset(union(X0,X1),X2)
      | member(sk0_0(X2,union(X0,X1)),X0)
      | member(sk0_0(X2,union(X0,X1)),X1) ),
    inference(resolution,[status(thm)],[f19,f37]) ).

fof(f84,plain,
    ( spl0_2
  <=> member(sk0_0(union(sk0_4,sk0_3),union(sk0_3,sk0_4)),sk0_3) ),
    introduced(split_symbol_definition) ).

fof(f85,plain,
    ( member(sk0_0(union(sk0_4,sk0_3),union(sk0_3,sk0_4)),sk0_3)
    | ~ spl0_2 ),
    inference(component_clause,[status(thm)],[f84]) ).

fof(f87,plain,
    ( spl0_3
  <=> member(sk0_0(union(sk0_4,sk0_3),union(sk0_3,sk0_4)),sk0_4) ),
    introduced(split_symbol_definition) ).

fof(f88,plain,
    ( member(sk0_0(union(sk0_4,sk0_3),union(sk0_3,sk0_4)),sk0_4)
    | ~ spl0_3 ),
    inference(component_clause,[status(thm)],[f87]) ).

fof(f90,plain,
    ( member(sk0_0(union(sk0_4,sk0_3),union(sk0_3,sk0_4)),sk0_3)
    | member(sk0_0(union(sk0_4,sk0_3),union(sk0_3,sk0_4)),sk0_4)
    | spl0_0 ),
    inference(resolution,[status(thm)],[f83,f76]) ).

fof(f91,plain,
    ( spl0_2
    | spl0_3
    | spl0_0 ),
    inference(split_clause,[status(thm)],[f90,f84,f87,f74]) ).

fof(f92,plain,
    ( spl0_4
  <=> member(sk0_0(union(sk0_3,sk0_4),union(sk0_4,sk0_3)),sk0_4) ),
    introduced(split_symbol_definition) ).

fof(f93,plain,
    ( member(sk0_0(union(sk0_3,sk0_4),union(sk0_4,sk0_3)),sk0_4)
    | ~ spl0_4 ),
    inference(component_clause,[status(thm)],[f92]) ).

fof(f95,plain,
    ( spl0_5
  <=> member(sk0_0(union(sk0_3,sk0_4),union(sk0_4,sk0_3)),sk0_3) ),
    introduced(split_symbol_definition) ).

fof(f96,plain,
    ( member(sk0_0(union(sk0_3,sk0_4),union(sk0_4,sk0_3)),sk0_3)
    | ~ spl0_5 ),
    inference(component_clause,[status(thm)],[f95]) ).

fof(f98,plain,
    ( member(sk0_0(union(sk0_3,sk0_4),union(sk0_4,sk0_3)),sk0_4)
    | member(sk0_0(union(sk0_3,sk0_4),union(sk0_4,sk0_3)),sk0_3)
    | spl0_1 ),
    inference(resolution,[status(thm)],[f79,f83]) ).

fof(f99,plain,
    ( spl0_4
    | spl0_5
    | spl0_1 ),
    inference(split_clause,[status(thm)],[f98,f92,f95,f77]) ).

fof(f104,plain,
    ! [X0,X1,X2] :
      ( subset(X0,union(X1,X2))
      | ~ member(sk0_0(union(X1,X2),X0),X2) ),
    inference(resolution,[status(thm)],[f20,f39]) ).

fof(f105,plain,
    ! [X0,X1,X2] :
      ( subset(X0,union(X1,X2))
      | ~ member(sk0_0(union(X1,X2),X0),X1) ),
    inference(resolution,[status(thm)],[f20,f38]) ).

fof(f106,plain,
    ( ~ member(sk0_0(union(sk0_4,sk0_3),union(sk0_3,sk0_4)),sk0_3)
    | spl0_0 ),
    inference(resolution,[status(thm)],[f104,f76]) ).

fof(f107,plain,
    ( $false
    | ~ spl0_2
    | spl0_0 ),
    inference(forward_subsumption_resolution,[status(thm)],[f106,f85]) ).

fof(f108,plain,
    ( ~ spl0_2
    | spl0_0 ),
    inference(contradiction_clause,[status(thm)],[f107]) ).

fof(f111,plain,
    ( ~ member(sk0_0(union(sk0_3,sk0_4),union(sk0_4,sk0_3)),sk0_4)
    | spl0_1 ),
    inference(resolution,[status(thm)],[f79,f104]) ).

fof(f112,plain,
    ( $false
    | ~ spl0_4
    | spl0_1 ),
    inference(forward_subsumption_resolution,[status(thm)],[f111,f93]) ).

fof(f113,plain,
    ( ~ spl0_4
    | spl0_1 ),
    inference(contradiction_clause,[status(thm)],[f112]) ).

fof(f117,plain,
    ( ~ member(sk0_0(union(sk0_4,sk0_3),union(sk0_3,sk0_4)),sk0_4)
    | spl0_0 ),
    inference(resolution,[status(thm)],[f105,f76]) ).

fof(f118,plain,
    ( $false
    | ~ spl0_3
    | spl0_0 ),
    inference(forward_subsumption_resolution,[status(thm)],[f117,f88]) ).

fof(f119,plain,
    ( ~ spl0_3
    | spl0_0 ),
    inference(contradiction_clause,[status(thm)],[f118]) ).

fof(f122,plain,
    ( ~ member(sk0_0(union(sk0_3,sk0_4),union(sk0_4,sk0_3)),sk0_3)
    | spl0_1 ),
    inference(resolution,[status(thm)],[f79,f105]) ).

fof(f123,plain,
    ( $false
    | ~ spl0_5
    | spl0_1 ),
    inference(forward_subsumption_resolution,[status(thm)],[f122,f96]) ).

fof(f124,plain,
    ( ~ spl0_5
    | spl0_1 ),
    inference(contradiction_clause,[status(thm)],[f123]) ).

fof(f125,plain,
    $false,
    inference(sat_refutation,[status(thm)],[f81,f91,f99,f108,f113,f119,f124]) ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.07/0.12  % Problem  : SET015+4 : TPTP v8.1.2. Released v2.2.0.
% 0.07/0.13  % Command  : drodi -learnfrom(drodi.lrn) -timeout(%d) %s
% 0.14/0.34  % Computer : n019.cluster.edu
% 0.14/0.34  % Model    : x86_64 x86_64
% 0.14/0.34  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.14/0.34  % Memory   : 8042.1875MB
% 0.14/0.34  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.14/0.34  % CPULimit : 300
% 0.14/0.34  % WCLimit  : 300
% 0.14/0.34  % DateTime : Mon Apr 29 21:36:44 EDT 2024
% 0.14/0.34  % CPUTime  : 
% 0.14/0.35  % Drodi V3.6.0
% 0.14/0.38  % Refutation found
% 0.14/0.38  % SZS status Theorem for theBenchmark: Theorem is valid
% 0.14/0.38  % SZS output start CNFRefutation for theBenchmark
% See solution above
% 0.14/0.39  % Elapsed time: 0.045684 seconds
% 0.14/0.39  % CPU time: 0.250935 seconds
% 0.14/0.39  % Total memory used: 41.157 MB
% 0.14/0.39  % Net memory used: 40.994 MB
%------------------------------------------------------------------------------