TSTP Solution File: SEU154+1 by Drodi---3.5.1

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : Drodi---3.5.1
% Problem  : SEU154+1 : TPTP v8.1.2. Released v3.3.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : drodi -learnfrom(drodi.lrn) -timeout(%d) %s

% Computer : n010.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 12:36:01 EDT 2023

% Result   : Theorem 0.14s 0.38s
% Output   : CNFRefutation 0.14s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :   22
%            Number of leaves      :    7
% Syntax   : Number of formulae    :   60 (   8 unt;   0 def)
%            Number of atoms       :  214 (  50 equ)
%            Maximal formula atoms :   14 (   3 avg)
%            Number of connectives :  246 (  92   ~; 103   |;  40   &)
%                                         (   8 <=>;   3  =>;   0  <=;   0 <~>)
%            Maximal formula depth :   11 (   6 avg)
%            Maximal term depth    :    4 (   1 avg)
%            Number of predicates  :    5 (   3 usr;   1 prp; 0-2 aty)
%            Number of functors    :    8 (   8 usr;   3 con; 0-3 aty)
%            Number of variables   :  168 (; 160   !;   8   ?)

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

fof(f4,axiom,
    ! [A,B] :
      ( B = singleton(A)
    <=> ! [C] :
          ( in(C,B)
        <=> C = A ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p') ).

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

fof(f6,axiom,
    ! [A,B,C] :
      ( C = set_intersection2(A,B)
    <=> ! [D] :
          ( in(D,C)
        <=> ( in(D,A)
            & in(D,B) ) ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p') ).

fof(f7,axiom,
    ! [A,B] :
      ( disjoint(A,B)
    <=> set_intersection2(A,B) = empty_set ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p') ).

fof(f13,conjecture,
    ! [A,B] :
      ( ~ in(A,B)
     => disjoint(singleton(A),B) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p') ).

fof(f14,negated_conjecture,
    ~ ! [A,B] :
        ( ~ in(A,B)
       => disjoint(singleton(A),B) ),
    inference(negated_conjecture,[status(cth)],[f13]) ).

fof(f19,axiom,
    ! [A] : subset(empty_set,A),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p') ).

fof(f23,plain,
    ! [A,B] :
      ( ( A != B
        | ( subset(A,B)
          & subset(B,A) ) )
      & ( A = B
        | ~ subset(A,B)
        | ~ subset(B,A) ) ),
    inference(NNF_transformation,[status(esa)],[f3]) ).

fof(f24,plain,
    ( ! [A,B] :
        ( A != B
        | ( subset(A,B)
          & subset(B,A) ) )
    & ! [A,B] :
        ( A = B
        | ~ subset(A,B)
        | ~ subset(B,A) ) ),
    inference(miniscoping,[status(esa)],[f23]) ).

fof(f27,plain,
    ! [X0,X1] :
      ( X0 = X1
      | ~ subset(X0,X1)
      | ~ subset(X1,X0) ),
    inference(cnf_transformation,[status(esa)],[f24]) ).

fof(f28,plain,
    ! [A,B] :
      ( ( B != singleton(A)
        | ! [C] :
            ( ( ~ in(C,B)
              | C = A )
            & ( in(C,B)
              | C != A ) ) )
      & ( B = singleton(A)
        | ? [C] :
            ( ( ~ in(C,B)
              | C != A )
            & ( in(C,B)
              | C = A ) ) ) ),
    inference(NNF_transformation,[status(esa)],[f4]) ).

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

fof(f30,plain,
    ( ! [A,B] :
        ( B != singleton(A)
        | ( ! [C] :
              ( ~ in(C,B)
              | C = A )
          & ! [C] :
              ( in(C,B)
              | C != A ) ) )
    & ! [A,B] :
        ( B = singleton(A)
        | ( ( ~ in(sk0_0(B,A),B)
            | sk0_0(B,A) != A )
          & ( in(sk0_0(B,A),B)
            | sk0_0(B,A) = A ) ) ) ),
    inference(skolemization,[status(esa)],[f29]) ).

fof(f31,plain,
    ! [X0,X1,X2] :
      ( X0 != singleton(X1)
      | ~ in(X2,X0)
      | X2 = X1 ),
    inference(cnf_transformation,[status(esa)],[f30]) ).

fof(f32,plain,
    ! [X0,X1,X2] :
      ( X0 != singleton(X1)
      | in(X2,X0)
      | X2 != X1 ),
    inference(cnf_transformation,[status(esa)],[f30]) ).

fof(f35,plain,
    ! [A,B] :
      ( subset(A,B)
    <=> ! [C] :
          ( ~ in(C,A)
          | in(C,B) ) ),
    inference(pre_NNF_transformation,[status(esa)],[f5]) ).

fof(f36,plain,
    ! [A,B] :
      ( ( ~ subset(A,B)
        | ! [C] :
            ( ~ in(C,A)
            | in(C,B) ) )
      & ( subset(A,B)
        | ? [C] :
            ( in(C,A)
            & ~ in(C,B) ) ) ),
    inference(NNF_transformation,[status(esa)],[f35]) ).

fof(f37,plain,
    ( ! [A,B] :
        ( ~ subset(A,B)
        | ! [C] :
            ( ~ in(C,A)
            | in(C,B) ) )
    & ! [A,B] :
        ( subset(A,B)
        | ? [C] :
            ( in(C,A)
            & ~ in(C,B) ) ) ),
    inference(miniscoping,[status(esa)],[f36]) ).

fof(f38,plain,
    ( ! [A,B] :
        ( ~ subset(A,B)
        | ! [C] :
            ( ~ in(C,A)
            | in(C,B) ) )
    & ! [A,B] :
        ( subset(A,B)
        | ( in(sk0_1(B,A),A)
          & ~ in(sk0_1(B,A),B) ) ) ),
    inference(skolemization,[status(esa)],[f37]) ).

fof(f39,plain,
    ! [X0,X1,X2] :
      ( ~ subset(X0,X1)
      | ~ in(X2,X0)
      | in(X2,X1) ),
    inference(cnf_transformation,[status(esa)],[f38]) ).

fof(f40,plain,
    ! [X0,X1] :
      ( subset(X0,X1)
      | in(sk0_1(X1,X0),X0) ),
    inference(cnf_transformation,[status(esa)],[f38]) ).

fof(f41,plain,
    ! [X0,X1] :
      ( subset(X0,X1)
      | ~ in(sk0_1(X1,X0),X1) ),
    inference(cnf_transformation,[status(esa)],[f38]) ).

fof(f42,plain,
    ! [A,B,C] :
      ( ( C != set_intersection2(A,B)
        | ! [D] :
            ( ( ~ in(D,C)
              | ( in(D,A)
                & in(D,B) ) )
            & ( in(D,C)
              | ~ in(D,A)
              | ~ in(D,B) ) ) )
      & ( C = set_intersection2(A,B)
        | ? [D] :
            ( ( ~ in(D,C)
              | ~ in(D,A)
              | ~ in(D,B) )
            & ( in(D,C)
              | ( in(D,A)
                & in(D,B) ) ) ) ) ),
    inference(NNF_transformation,[status(esa)],[f6]) ).

fof(f43,plain,
    ( ! [A,B,C] :
        ( C != set_intersection2(A,B)
        | ( ! [D] :
              ( ~ in(D,C)
              | ( in(D,A)
                & in(D,B) ) )
          & ! [D] :
              ( in(D,C)
              | ~ in(D,A)
              | ~ in(D,B) ) ) )
    & ! [A,B,C] :
        ( C = set_intersection2(A,B)
        | ? [D] :
            ( ( ~ in(D,C)
              | ~ in(D,A)
              | ~ in(D,B) )
            & ( in(D,C)
              | ( in(D,A)
                & in(D,B) ) ) ) ) ),
    inference(miniscoping,[status(esa)],[f42]) ).

fof(f44,plain,
    ( ! [A,B,C] :
        ( C != set_intersection2(A,B)
        | ( ! [D] :
              ( ~ in(D,C)
              | ( in(D,A)
                & in(D,B) ) )
          & ! [D] :
              ( in(D,C)
              | ~ in(D,A)
              | ~ in(D,B) ) ) )
    & ! [A,B,C] :
        ( C = set_intersection2(A,B)
        | ( ( ~ in(sk0_2(C,B,A),C)
            | ~ in(sk0_2(C,B,A),A)
            | ~ in(sk0_2(C,B,A),B) )
          & ( in(sk0_2(C,B,A),C)
            | ( in(sk0_2(C,B,A),A)
              & in(sk0_2(C,B,A),B) ) ) ) ) ),
    inference(skolemization,[status(esa)],[f43]) ).

fof(f45,plain,
    ! [X0,X1,X2,X3] :
      ( X0 != set_intersection2(X1,X2)
      | ~ in(X3,X0)
      | in(X3,X1) ),
    inference(cnf_transformation,[status(esa)],[f44]) ).

fof(f46,plain,
    ! [X0,X1,X2,X3] :
      ( X0 != set_intersection2(X1,X2)
      | ~ in(X3,X0)
      | in(X3,X2) ),
    inference(cnf_transformation,[status(esa)],[f44]) ).

fof(f51,plain,
    ! [A,B] :
      ( ( ~ disjoint(A,B)
        | set_intersection2(A,B) = empty_set )
      & ( disjoint(A,B)
        | set_intersection2(A,B) != empty_set ) ),
    inference(NNF_transformation,[status(esa)],[f7]) ).

fof(f52,plain,
    ( ! [A,B] :
        ( ~ disjoint(A,B)
        | set_intersection2(A,B) = empty_set )
    & ! [A,B] :
        ( disjoint(A,B)
        | set_intersection2(A,B) != empty_set ) ),
    inference(miniscoping,[status(esa)],[f51]) ).

fof(f54,plain,
    ! [X0,X1] :
      ( disjoint(X0,X1)
      | set_intersection2(X0,X1) != empty_set ),
    inference(cnf_transformation,[status(esa)],[f52]) ).

fof(f58,plain,
    ? [A,B] :
      ( ~ in(A,B)
      & ~ disjoint(singleton(A),B) ),
    inference(pre_NNF_transformation,[status(esa)],[f14]) ).

fof(f59,plain,
    ( ~ in(sk0_3,sk0_4)
    & ~ disjoint(singleton(sk0_3),sk0_4) ),
    inference(skolemization,[status(esa)],[f58]) ).

fof(f60,plain,
    ~ in(sk0_3,sk0_4),
    inference(cnf_transformation,[status(esa)],[f59]) ).

fof(f61,plain,
    ~ disjoint(singleton(sk0_3),sk0_4),
    inference(cnf_transformation,[status(esa)],[f59]) ).

fof(f70,plain,
    ! [X0] : subset(empty_set,X0),
    inference(cnf_transformation,[status(esa)],[f19]) ).

fof(f73,plain,
    ! [X0,X1] :
      ( ~ in(X0,singleton(X1))
      | X0 = X1 ),
    inference(destructive_equality_resolution,[status(esa)],[f31]) ).

fof(f74,plain,
    ! [X0] : in(X0,singleton(X0)),
    inference(destructive_equality_resolution,[status(esa)],[f32]) ).

fof(f75,plain,
    ! [X0,X1,X2] :
      ( ~ in(X0,set_intersection2(X1,X2))
      | in(X0,X1) ),
    inference(destructive_equality_resolution,[status(esa)],[f45]) ).

fof(f76,plain,
    ! [X0,X1,X2] :
      ( ~ in(X0,set_intersection2(X1,X2))
      | in(X0,X2) ),
    inference(destructive_equality_resolution,[status(esa)],[f46]) ).

fof(f79,plain,
    ! [X0] :
      ( X0 = empty_set
      | ~ subset(X0,empty_set) ),
    inference(resolution,[status(thm)],[f27,f70]) ).

fof(f99,plain,
    ! [X0,X1] :
      ( subset(singleton(X0),X1)
      | sk0_1(X1,singleton(X0)) = X0 ),
    inference(resolution,[status(thm)],[f40,f73]) ).

fof(f103,plain,
    ! [X0,X1,X2] :
      ( in(sk0_1(X0,set_intersection2(X1,X2)),X1)
      | subset(set_intersection2(X1,X2),X0) ),
    inference(resolution,[status(thm)],[f75,f40]) ).

fof(f121,plain,
    ! [X0,X1] :
      ( subset(singleton(X0),X1)
      | ~ in(X0,X1)
      | subset(singleton(X0),X1) ),
    inference(paramodulation,[status(thm)],[f99,f41]) ).

fof(f122,plain,
    ! [X0,X1] :
      ( subset(singleton(X0),X1)
      | ~ in(X0,X1) ),
    inference(duplicate_literals_removal,[status(esa)],[f121]) ).

fof(f126,plain,
    ! [X0,X1,X2] :
      ( ~ in(X0,X1)
      | ~ in(X2,singleton(X0))
      | in(X2,X1) ),
    inference(resolution,[status(thm)],[f122,f39]) ).

fof(f131,plain,
    ! [X0,X1,X2] :
      ( ~ in(X0,X1)
      | in(sk0_1(X2,singleton(X0)),X1)
      | subset(singleton(X0),X2) ),
    inference(resolution,[status(thm)],[f126,f40]) ).

fof(f168,plain,
    ! [X0,X1,X2,X3] :
      ( ~ in(X0,set_intersection2(X1,X2))
      | subset(singleton(X0),X3)
      | in(sk0_1(X3,singleton(X0)),X2) ),
    inference(resolution,[status(thm)],[f131,f76]) ).

fof(f282,plain,
    ! [X0,X1,X2] :
      ( ~ in(X0,set_intersection2(X1,X2))
      | subset(singleton(X0),X2)
      | subset(singleton(X0),X2) ),
    inference(resolution,[status(thm)],[f168,f41]) ).

fof(f283,plain,
    ! [X0,X1,X2] :
      ( ~ in(X0,set_intersection2(X1,X2))
      | subset(singleton(X0),X2) ),
    inference(duplicate_literals_removal,[status(esa)],[f282]) ).

fof(f302,plain,
    ! [X0,X1,X2] :
      ( subset(singleton(sk0_1(X0,set_intersection2(X1,X2))),X2)
      | subset(set_intersection2(X1,X2),X0) ),
    inference(resolution,[status(thm)],[f283,f40]) ).

fof(f508,plain,
    ! [X0,X1,X2] :
      ( subset(set_intersection2(singleton(X0),X1),X2)
      | sk0_1(X2,set_intersection2(singleton(X0),X1)) = X0 ),
    inference(resolution,[status(thm)],[f103,f73]) ).

fof(f953,plain,
    ! [X0,X1,X2] :
      ( subset(singleton(X0),X1)
      | subset(set_intersection2(singleton(X0),X1),X2)
      | subset(set_intersection2(singleton(X0),X1),X2) ),
    inference(paramodulation,[status(thm)],[f508,f302]) ).

fof(f954,plain,
    ! [X0,X1,X2] :
      ( subset(singleton(X0),X1)
      | subset(set_intersection2(singleton(X0),X1),X2) ),
    inference(duplicate_literals_removal,[status(esa)],[f953]) ).

fof(f1065,plain,
    ! [X0,X1] :
      ( subset(singleton(X0),X1)
      | set_intersection2(singleton(X0),X1) = empty_set ),
    inference(resolution,[status(thm)],[f954,f79]) ).

fof(f1078,plain,
    ! [X0,X1] :
      ( subset(singleton(X0),X1)
      | disjoint(singleton(X0),X1) ),
    inference(resolution,[status(thm)],[f1065,f54]) ).

fof(f1179,plain,
    subset(singleton(sk0_3),sk0_4),
    inference(resolution,[status(thm)],[f1078,f61]) ).

fof(f1275,plain,
    ! [X0] :
      ( ~ in(X0,singleton(sk0_3))
      | in(X0,sk0_4) ),
    inference(resolution,[status(thm)],[f1179,f39]) ).

fof(f1336,plain,
    in(sk0_3,sk0_4),
    inference(resolution,[status(thm)],[f1275,f74]) ).

fof(f1337,plain,
    $false,
    inference(forward_subsumption_resolution,[status(thm)],[f1336,f60]) ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.05/0.09  % Problem  : SEU154+1 : TPTP v8.1.2. Released v3.3.0.
% 0.05/0.10  % Command  : drodi -learnfrom(drodi.lrn) -timeout(%d) %s
% 0.09/0.30  % Computer : n010.cluster.edu
% 0.09/0.30  % Model    : x86_64 x86_64
% 0.09/0.30  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.09/0.30  % Memory   : 8042.1875MB
% 0.09/0.30  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.09/0.30  % CPULimit : 300
% 0.09/0.30  % WCLimit  : 300
% 0.09/0.30  % DateTime : Tue May 30 09:01:37 EDT 2023
% 0.09/0.30  % CPUTime  : 
% 0.09/0.30  % Drodi V3.5.1
% 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
% 0.14/0.40  % Elapsed time: 0.095307 seconds
% 0.14/0.40  % CPU time: 0.428375 seconds
% 0.14/0.40  % Memory used: 51.537 MB
%------------------------------------------------------------------------------