TSTP Solution File: SET635+3 by Drodi---3.5.1

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : Drodi---3.5.1
% Problem  : SET635+3 : TPTP v8.1.2. Released v2.2.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : drodi -learnfrom(drodi.lrn) -timeout(%d) %s

% Computer : n011.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 12:34:53 EDT 2023

% Result   : Theorem 2.13s 0.69s
% Output   : CNFRefutation 2.13s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :   15
%            Number of leaves      :   11
% Syntax   : Number of formulae    :   62 (  35 unt;   0 def)
%            Number of atoms       :  128 (  38 equ)
%            Maximal formula atoms :    6 (   2 avg)
%            Number of connectives :  121 (  55   ~;  41   |;  19   &)
%                                         (   5 <=>;   1  =>;   0  <=;   0 <~>)
%            Maximal formula depth :    8 (   4 avg)
%            Maximal term depth    :    4 (   1 avg)
%            Number of predicates  :    5 (   3 usr;   1 prp; 0-2 aty)
%            Number of functors    :    9 (   9 usr;   4 con; 0-2 aty)
%            Number of variables   :  125 (; 118   !;   7   ?)

% Comments : 
%------------------------------------------------------------------------------
fof(f3,axiom,
    ! [B] : union(B,empty_set) = B,
    file('/export/starexec/sandbox/benchmark/theBenchmark.p') ).

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

fof(f5,axiom,
    ! [B,C,D] : intersection(B,difference(C,D)) = difference(intersection(B,C),D),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p') ).

fof(f7,axiom,
    ! [B,C,D] :
      ( member(D,difference(B,C))
    <=> ( member(D,B)
        & ~ member(D,C) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p') ).

fof(f8,axiom,
    ! [B,C] :
      ( B = C
    <=> ( subset(B,C)
        & subset(C,B) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p') ).

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

fof(f10,axiom,
    ! [B] : ~ member(B,empty_set),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p') ).

fof(f11,axiom,
    ! [B,C] : intersection(B,C) = intersection(C,B),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p') ).

fof(f12,axiom,
    ! [B,C] :
      ( subset(B,C)
    <=> ! [D] :
          ( member(D,B)
         => member(D,C) ) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p') ).

fof(f15,axiom,
    ! [B] :
      ( empty(B)
    <=> ! [C] : ~ member(C,B) ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p') ).

fof(f16,conjecture,
    ! [B,C,D] : intersection(B,difference(C,D)) = difference(intersection(B,C),intersection(B,D)),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p') ).

fof(f17,negated_conjecture,
    ~ ! [B,C,D] : intersection(B,difference(C,D)) = difference(intersection(B,C),intersection(B,D)),
    inference(negated_conjecture,[status(cth)],[f16]) ).

fof(f23,plain,
    ! [X0] : union(X0,empty_set) = X0,
    inference(cnf_transformation,[status(esa)],[f3]) ).

fof(f24,plain,
    ! [X0,X1,X2] : difference(X0,intersection(X1,X2)) = union(difference(X0,X1),difference(X0,X2)),
    inference(cnf_transformation,[status(esa)],[f4]) ).

fof(f25,plain,
    ! [X0,X1,X2] : intersection(X0,difference(X1,X2)) = difference(intersection(X0,X1),X2),
    inference(cnf_transformation,[status(esa)],[f5]) ).

fof(f31,plain,
    ! [B,C,D] :
      ( ( ~ member(D,difference(B,C))
        | ( member(D,B)
          & ~ member(D,C) ) )
      & ( member(D,difference(B,C))
        | ~ member(D,B)
        | member(D,C) ) ),
    inference(NNF_transformation,[status(esa)],[f7]) ).

fof(f32,plain,
    ( ! [B,C,D] :
        ( ~ member(D,difference(B,C))
        | ( member(D,B)
          & ~ member(D,C) ) )
    & ! [B,C,D] :
        ( member(D,difference(B,C))
        | ~ member(D,B)
        | member(D,C) ) ),
    inference(miniscoping,[status(esa)],[f31]) ).

fof(f33,plain,
    ! [X0,X1,X2] :
      ( ~ member(X0,difference(X1,X2))
      | member(X0,X1) ),
    inference(cnf_transformation,[status(esa)],[f32]) ).

fof(f34,plain,
    ! [X0,X1,X2] :
      ( ~ member(X0,difference(X1,X2))
      | ~ member(X0,X2) ),
    inference(cnf_transformation,[status(esa)],[f32]) ).

fof(f36,plain,
    ! [B,C] :
      ( ( B != C
        | ( subset(B,C)
          & subset(C,B) ) )
      & ( B = C
        | ~ subset(B,C)
        | ~ subset(C,B) ) ),
    inference(NNF_transformation,[status(esa)],[f8]) ).

fof(f37,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)],[f36]) ).

fof(f40,plain,
    ! [X0,X1] :
      ( X0 = X1
      | ~ subset(X0,X1)
      | ~ subset(X1,X0) ),
    inference(cnf_transformation,[status(esa)],[f37]) ).

fof(f41,plain,
    ! [X0,X1] : union(X0,X1) = union(X1,X0),
    inference(cnf_transformation,[status(esa)],[f9]) ).

fof(f42,plain,
    ! [X0] : ~ member(X0,empty_set),
    inference(cnf_transformation,[status(esa)],[f10]) ).

fof(f43,plain,
    ! [X0,X1] : intersection(X0,X1) = intersection(X1,X0),
    inference(cnf_transformation,[status(esa)],[f11]) ).

fof(f44,plain,
    ! [B,C] :
      ( subset(B,C)
    <=> ! [D] :
          ( ~ member(D,B)
          | member(D,C) ) ),
    inference(pre_NNF_transformation,[status(esa)],[f12]) ).

fof(f45,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)],[f44]) ).

fof(f46,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)],[f45]) ).

fof(f47,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)],[f46]) ).

fof(f49,plain,
    ! [X0,X1] :
      ( subset(X0,X1)
      | member(sk0_0(X1,X0),X0) ),
    inference(cnf_transformation,[status(esa)],[f47]) ).

fof(f59,plain,
    ! [B] :
      ( ( ~ empty(B)
        | ! [C] : ~ member(C,B) )
      & ( empty(B)
        | ? [C] : member(C,B) ) ),
    inference(NNF_transformation,[status(esa)],[f15]) ).

fof(f60,plain,
    ( ! [B] :
        ( ~ empty(B)
        | ! [C] : ~ member(C,B) )
    & ! [B] :
        ( empty(B)
        | ? [C] : member(C,B) ) ),
    inference(miniscoping,[status(esa)],[f59]) ).

fof(f61,plain,
    ( ! [B] :
        ( ~ empty(B)
        | ! [C] : ~ member(C,B) )
    & ! [B] :
        ( empty(B)
        | member(sk0_2(B),B) ) ),
    inference(skolemization,[status(esa)],[f60]) ).

fof(f62,plain,
    ! [X0,X1] :
      ( ~ empty(X0)
      | ~ member(X1,X0) ),
    inference(cnf_transformation,[status(esa)],[f61]) ).

fof(f63,plain,
    ! [X0] :
      ( empty(X0)
      | member(sk0_2(X0),X0) ),
    inference(cnf_transformation,[status(esa)],[f61]) ).

fof(f64,plain,
    ? [B,C,D] : intersection(B,difference(C,D)) != difference(intersection(B,C),intersection(B,D)),
    inference(pre_NNF_transformation,[status(esa)],[f17]) ).

fof(f65,plain,
    intersection(sk0_3,difference(sk0_4,sk0_5)) != difference(intersection(sk0_3,sk0_4),intersection(sk0_3,sk0_5)),
    inference(skolemization,[status(esa)],[f64]) ).

fof(f66,plain,
    intersection(sk0_3,difference(sk0_4,sk0_5)) != difference(intersection(sk0_3,sk0_4),intersection(sk0_3,sk0_5)),
    inference(cnf_transformation,[status(esa)],[f65]) ).

fof(f73,plain,
    intersection(sk0_3,difference(sk0_4,sk0_5)) != intersection(sk0_3,difference(sk0_4,intersection(sk0_3,sk0_5))),
    inference(backward_demodulation,[status(thm)],[f25,f66]) ).

fof(f74,plain,
    intersection(difference(sk0_4,sk0_5),sk0_3) != intersection(sk0_3,difference(sk0_4,intersection(sk0_3,sk0_5))),
    inference(forward_demodulation,[status(thm)],[f43,f73]) ).

fof(f75,plain,
    intersection(difference(sk0_4,sk0_5),sk0_3) != intersection(difference(sk0_4,intersection(sk0_3,sk0_5)),sk0_3),
    inference(forward_demodulation,[status(thm)],[f43,f74]) ).

fof(f76,plain,
    ! [X0,X1,X2] : intersection(X0,difference(X1,X2)) = difference(intersection(X1,X0),X2),
    inference(paramodulation,[status(thm)],[f43,f25]) ).

fof(f77,plain,
    ! [X0,X1,X2] : intersection(X0,difference(X1,X2)) = intersection(X1,difference(X0,X2)),
    inference(forward_demodulation,[status(thm)],[f25,f76]) ).

fof(f82,plain,
    ! [X0,X1,X2] : intersection(difference(X0,X1),X2) = intersection(X0,difference(X2,X1)),
    inference(paramodulation,[status(thm)],[f43,f77]) ).

fof(f138,plain,
    ! [X0] : X0 = union(empty_set,X0),
    inference(paramodulation,[status(thm)],[f23,f41]) ).

fof(f147,plain,
    ! [X0,X1] :
      ( empty(difference(X0,X1))
      | ~ member(sk0_2(difference(X0,X1)),X1) ),
    inference(resolution,[status(thm)],[f63,f34]) ).

fof(f148,plain,
    ! [X0,X1] :
      ( empty(difference(X0,X1))
      | member(sk0_2(difference(X0,X1)),X0) ),
    inference(resolution,[status(thm)],[f63,f33]) ).

fof(f171,plain,
    intersection(difference(sk0_4,sk0_5),sk0_3) != intersection(sk0_3,difference(sk0_4,intersection(sk0_3,sk0_5))),
    inference(paramodulation,[status(thm)],[f43,f75]) ).

fof(f172,plain,
    intersection(difference(sk0_4,sk0_5),sk0_3) != intersection(difference(sk0_3,intersection(sk0_3,sk0_5)),sk0_4),
    inference(forward_demodulation,[status(thm)],[f82,f171]) ).

fof(f277,plain,
    ! [X0] :
      ( empty(difference(X0,X0))
      | empty(difference(X0,X0)) ),
    inference(resolution,[status(thm)],[f148,f147]) ).

fof(f278,plain,
    ! [X0] : empty(difference(X0,X0)),
    inference(duplicate_literals_removal,[status(esa)],[f277]) ).

fof(f398,plain,
    ! [X0] : subset(empty_set,X0),
    inference(resolution,[status(thm)],[f49,f42]) ).

fof(f408,plain,
    ! [X0,X1] :
      ( subset(X0,X1)
      | ~ empty(X0) ),
    inference(resolution,[status(thm)],[f49,f62]) ).

fof(f409,plain,
    ! [X0] :
      ( X0 = empty_set
      | ~ subset(X0,empty_set) ),
    inference(resolution,[status(thm)],[f398,f40]) ).

fof(f417,plain,
    ! [X0] :
      ( X0 = empty_set
      | ~ empty(X0) ),
    inference(resolution,[status(thm)],[f409,f408]) ).

fof(f426,plain,
    ! [X0] : difference(X0,X0) = empty_set,
    inference(resolution,[status(thm)],[f417,f278]) ).

fof(f471,plain,
    ! [X0,X1] : difference(X0,intersection(X0,X1)) = union(empty_set,difference(X0,X1)),
    inference(paramodulation,[status(thm)],[f426,f24]) ).

fof(f472,plain,
    ! [X0,X1] : difference(X0,intersection(X0,X1)) = difference(X0,X1),
    inference(forward_demodulation,[status(thm)],[f138,f471]) ).

fof(f1297,plain,
    intersection(difference(sk0_4,sk0_5),sk0_3) != intersection(difference(sk0_3,sk0_5),sk0_4),
    inference(backward_demodulation,[status(thm)],[f472,f172]) ).

fof(f2379,plain,
    intersection(sk0_3,difference(sk0_4,sk0_5)) != intersection(difference(sk0_3,sk0_5),sk0_4),
    inference(paramodulation,[status(thm)],[f43,f1297]) ).

fof(f2380,plain,
    intersection(difference(sk0_3,sk0_5),sk0_4) != intersection(difference(sk0_3,sk0_5),sk0_4),
    inference(forward_demodulation,[status(thm)],[f82,f2379]) ).

fof(f2381,plain,
    $false,
    inference(trivial_equality_resolution,[status(esa)],[f2380]) ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.05/0.11  % Problem  : SET635+3 : TPTP v8.1.2. Released v2.2.0.
% 0.05/0.11  % Command  : drodi -learnfrom(drodi.lrn) -timeout(%d) %s
% 0.11/0.32  % Computer : n011.cluster.edu
% 0.11/0.32  % Model    : x86_64 x86_64
% 0.11/0.32  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.11/0.32  % Memory   : 8042.1875MB
% 0.11/0.32  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.11/0.32  % CPULimit : 300
% 0.11/0.32  % WCLimit  : 300
% 0.11/0.32  % DateTime : Tue May 30 10:16:42 EDT 2023
% 0.11/0.32  % CPUTime  : 
% 0.11/0.33  % Drodi V3.5.1
% 2.13/0.69  % Refutation found
% 2.13/0.69  % SZS status Theorem for theBenchmark: Theorem is valid
% 2.13/0.69  % SZS output start CNFRefutation for theBenchmark
% See solution above
% 2.13/0.72  % Elapsed time: 0.389993 seconds
% 2.13/0.72  % CPU time: 2.282022 seconds
% 2.13/0.72  % Memory used: 82.989 MB
%------------------------------------------------------------------------------