TSTP Solution File: SET162+3 by Drodi---3.5.1

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : Drodi---3.5.1
% Problem  : SET162+3 : TPTP v8.1.2. Released v2.2.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : drodi -learnfrom(drodi.lrn) -timeout(%d) %s

% Computer : n015.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 12:34:09 EDT 2023

% Result   : Theorem 0.13s 0.38s
% Output   : CNFRefutation 0.26s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :   14
%            Number of leaves      :    6
% Syntax   : Number of formulae    :   38 (  15 unt;   0 def)
%            Number of atoms       :   97 (  17 equ)
%            Maximal formula atoms :    6 (   2 avg)
%            Number of connectives :   96 (  37   ~;  39   |;  15   &)
%                                         (   4 <=>;   1  =>;   0  <=;   0 <~>)
%            Maximal formula depth :    8 (   5 avg)
%            Maximal term depth    :    3 (   1 avg)
%            Number of predicates  :    4 (   2 usr;   1 prp; 0-2 aty)
%            Number of functors    :    4 (   4 usr;   2 con; 0-2 aty)
%            Number of variables   :   84 (;  81   !;   3   ?)

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

fof(f2,axiom,
    ! [B] : ~ member(B,empty_set),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p') ).

fof(f3,axiom,
    ! [B,C] :
      ( B = C
    <=> ( subset(B,C)
        & subset(C,B) ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p') ).

fof(f4,axiom,
    ! [B,C] : union(B,C) = union(C,B),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p') ).

fof(f5,axiom,
    ! [B,C] :
      ( subset(B,C)
    <=> ! [D] :
          ( member(D,B)
         => member(D,C) ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p') ).

fof(f9,conjecture,
    ! [B] : union(B,empty_set) = B,
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p') ).

fof(f10,negated_conjecture,
    ~ ! [B] : union(B,empty_set) = B,
    inference(negated_conjecture,[status(cth)],[f9]) ).

fof(f11,plain,
    ! [B,C,D] :
      ( ( ~ member(D,union(B,C))
        | member(D,B)
        | member(D,C) )
      & ( member(D,union(B,C))
        | ( ~ member(D,B)
          & ~ member(D,C) ) ) ),
    inference(NNF_transformation,[status(esa)],[f1]) ).

fof(f12,plain,
    ( ! [B,C,D] :
        ( ~ member(D,union(B,C))
        | member(D,B)
        | member(D,C) )
    & ! [B,C,D] :
        ( member(D,union(B,C))
        | ( ~ member(D,B)
          & ~ member(D,C) ) ) ),
    inference(miniscoping,[status(esa)],[f11]) ).

fof(f13,plain,
    ! [X0,X1,X2] :
      ( ~ member(X0,union(X1,X2))
      | member(X0,X1)
      | member(X0,X2) ),
    inference(cnf_transformation,[status(esa)],[f12]) ).

fof(f15,plain,
    ! [X0,X1,X2] :
      ( member(X0,union(X1,X2))
      | ~ member(X0,X2) ),
    inference(cnf_transformation,[status(esa)],[f12]) ).

fof(f16,plain,
    ! [X0] : ~ member(X0,empty_set),
    inference(cnf_transformation,[status(esa)],[f2]) ).

fof(f17,plain,
    ! [B,C] :
      ( ( B != C
        | ( subset(B,C)
          & subset(C,B) ) )
      & ( B = C
        | ~ subset(B,C)
        | ~ subset(C,B) ) ),
    inference(NNF_transformation,[status(esa)],[f3]) ).

fof(f18,plain,
    ( ! [B,C] :
        ( B != C
        | ( subset(B,C)
          & subset(C,B) ) )
    & ! [B,C] :
        ( B = C
        | ~ subset(B,C)
        | ~ subset(C,B) ) ),
    inference(miniscoping,[status(esa)],[f17]) ).

fof(f21,plain,
    ! [X0,X1] :
      ( X0 = X1
      | ~ subset(X0,X1)
      | ~ subset(X1,X0) ),
    inference(cnf_transformation,[status(esa)],[f18]) ).

fof(f22,plain,
    ! [X0,X1] : union(X0,X1) = union(X1,X0),
    inference(cnf_transformation,[status(esa)],[f4]) ).

fof(f23,plain,
    ! [B,C] :
      ( subset(B,C)
    <=> ! [D] :
          ( ~ member(D,B)
          | member(D,C) ) ),
    inference(pre_NNF_transformation,[status(esa)],[f5]) ).

fof(f24,plain,
    ! [B,C] :
      ( ( ~ subset(B,C)
        | ! [D] :
            ( ~ member(D,B)
            | member(D,C) ) )
      & ( subset(B,C)
        | ? [D] :
            ( member(D,B)
            & ~ member(D,C) ) ) ),
    inference(NNF_transformation,[status(esa)],[f23]) ).

fof(f25,plain,
    ( ! [B,C] :
        ( ~ subset(B,C)
        | ! [D] :
            ( ~ member(D,B)
            | member(D,C) ) )
    & ! [B,C] :
        ( subset(B,C)
        | ? [D] :
            ( member(D,B)
            & ~ member(D,C) ) ) ),
    inference(miniscoping,[status(esa)],[f24]) ).

fof(f26,plain,
    ( ! [B,C] :
        ( ~ subset(B,C)
        | ! [D] :
            ( ~ member(D,B)
            | member(D,C) ) )
    & ! [B,C] :
        ( subset(B,C)
        | ( member(sk0_0(C,B),B)
          & ~ member(sk0_0(C,B),C) ) ) ),
    inference(skolemization,[status(esa)],[f25]) ).

fof(f28,plain,
    ! [X0,X1] :
      ( subset(X0,X1)
      | member(sk0_0(X1,X0),X0) ),
    inference(cnf_transformation,[status(esa)],[f26]) ).

fof(f29,plain,
    ! [X0,X1] :
      ( subset(X0,X1)
      | ~ member(sk0_0(X1,X0),X1) ),
    inference(cnf_transformation,[status(esa)],[f26]) ).

fof(f43,plain,
    ? [B] : union(B,empty_set) != B,
    inference(pre_NNF_transformation,[status(esa)],[f10]) ).

fof(f44,plain,
    union(sk0_3,empty_set) != sk0_3,
    inference(skolemization,[status(esa)],[f43]) ).

fof(f45,plain,
    union(sk0_3,empty_set) != sk0_3,
    inference(cnf_transformation,[status(esa)],[f44]) ).

fof(f64,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)],[f28,f13]) ).

fof(f75,plain,
    ! [X0,X1,X2] :
      ( subset(X0,union(X1,X2))
      | ~ member(sk0_0(union(X1,X2),X0),X2) ),
    inference(resolution,[status(thm)],[f29,f15]) ).

fof(f99,plain,
    ! [X0,X1] :
      ( subset(union(X0,X1),X1)
      | member(sk0_0(X1,union(X0,X1)),X0)
      | subset(union(X0,X1),X1) ),
    inference(resolution,[status(thm)],[f64,f29]) ).

fof(f100,plain,
    ! [X0,X1] :
      ( subset(union(X0,X1),X1)
      | member(sk0_0(X1,union(X0,X1)),X0) ),
    inference(duplicate_literals_removal,[status(esa)],[f99]) ).

fof(f108,plain,
    ! [X0,X1] :
      ( subset(X0,union(X1,X0))
      | subset(X0,union(X1,X0)) ),
    inference(resolution,[status(thm)],[f75,f28]) ).

fof(f109,plain,
    ! [X0,X1] : subset(X0,union(X1,X0)),
    inference(duplicate_literals_removal,[status(esa)],[f108]) ).

fof(f117,plain,
    ! [X0,X1] : subset(X0,union(X0,X1)),
    inference(paramodulation,[status(thm)],[f22,f109]) ).

fof(f121,plain,
    ! [X0,X1] :
      ( union(X0,X1) = X0
      | ~ subset(union(X0,X1),X0) ),
    inference(resolution,[status(thm)],[f117,f21]) ).

fof(f144,plain,
    ! [X0,X1] :
      ( union(X0,X1) = X0
      | ~ subset(union(X1,X0),X0) ),
    inference(paramodulation,[status(thm)],[f22,f121]) ).

fof(f447,plain,
    ! [X0] : subset(union(empty_set,X0),X0),
    inference(resolution,[status(thm)],[f100,f16]) ).

fof(f562,plain,
    ! [X0] : union(X0,empty_set) = X0,
    inference(resolution,[status(thm)],[f447,f144]) ).

fof(f574,plain,
    sk0_3 != sk0_3,
    inference(backward_demodulation,[status(thm)],[f562,f45]) ).

fof(f575,plain,
    $false,
    inference(trivial_equality_resolution,[status(esa)],[f574]) ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.07/0.12  % Problem  : SET162+3 : TPTP v8.1.2. Released v2.2.0.
% 0.07/0.13  % Command  : drodi -learnfrom(drodi.lrn) -timeout(%d) %s
% 0.13/0.34  % Computer : n015.cluster.edu
% 0.13/0.34  % Model    : x86_64 x86_64
% 0.13/0.34  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.13/0.34  % Memory   : 8042.1875MB
% 0.13/0.34  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.13/0.34  % CPULimit : 300
% 0.13/0.34  % WCLimit  : 300
% 0.13/0.34  % DateTime : Tue May 30 10:35:49 EDT 2023
% 0.13/0.34  % CPUTime  : 
% 0.13/0.35  % Drodi V3.5.1
% 0.13/0.38  % Refutation found
% 0.13/0.38  % SZS status Theorem for theBenchmark: Theorem is valid
% 0.13/0.38  % SZS output start CNFRefutation for theBenchmark
% See solution above
% 0.26/0.61  % Elapsed time: 0.043242 seconds
% 0.26/0.61  % CPU time: 0.054230 seconds
% 0.26/0.61  % Memory used: 5.682 MB
%------------------------------------------------------------------------------