TSTP Solution File: SET062-7 by Z3---4.8.9.0

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : Z3---4.8.9.0
% Problem  : SET062-7 : TPTP v8.1.0. Bugfixed v2.1.0.
% Transfm  : none
% Format   : tptp
% Command  : z3_tptp -proof -model -t:%d -file:%s

% Computer : n027.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 Sep 20 05:05:16 EDT 2022

% Result   : Unsatisfiable 0.17s 0.39s
% Output   : Proof 0.17s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :    7
%            Number of leaves      :   17
% Syntax   : Number of formulae    :   31 (  11 unt;   5 typ;   0 def)
%            Number of atoms       :   67 (   0 equ)
%            Maximal formula atoms :    8 (   2 avg)
%            Number of connectives :   59 (  21   ~;  28   |;   0   &)
%                                         (  10 <=>;   0  =>;   0  <=;   0 <~>)
%            Maximal formula depth :    7 (   4 avg)
%            Maximal term depth    :    2 (   1 avg)
%            Number of FOOLs       :    3 (   3 fml;   0 var)
%            Number of types       :    2 (   0 usr)
%            Number of type conns  :    6 (   3   >;   3   *;   0   +;   0  <<)
%            Number of predicates  :    5 (   4 usr;   1 prp; 0-2 aty)
%            Number of functors    :    3 (   3 usr;   2 con; 0-2 aty)
%            Number of variables   :   44 (  39   !;   0   ?;  44   :)

% Comments : 
%------------------------------------------------------------------------------
tff(member_type,type,
    member: ( $i * $i ) > $o ).

tff(null_class_type,type,
    null_class: $i ).

tff(not_subclass_element_type,type,
    not_subclass_element: ( $i * $i ) > $i ).

tff(x_type,type,
    x: $i ).

tff(subclass_type,type,
    subclass: ( $i * $i ) > $o ).

tff(1,plain,
    ( ~ subclass(null_class,x)
  <=> ~ subclass(null_class,x) ),
    inference(rewrite,[status(thm)],]) ).

tff(2,axiom,
    ~ subclass(null_class,x),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',prove_null_class_is_subclass_1) ).

tff(3,plain,
    ~ subclass(null_class,x),
    inference(modus_ponens,[status(thm)],[2,1]) ).

tff(4,plain,
    ^ [Y: $i,X: $i] :
      refl(
        ( ( subclass(X,Y)
          | member(not_subclass_element(X,Y),X) )
      <=> ( subclass(X,Y)
          | member(not_subclass_element(X,Y),X) ) )),
    inference(bind,[status(th)],]) ).

tff(5,plain,
    ( ! [Y: $i,X: $i] :
        ( subclass(X,Y)
        | member(not_subclass_element(X,Y),X) )
  <=> ! [Y: $i,X: $i] :
        ( subclass(X,Y)
        | member(not_subclass_element(X,Y),X) ) ),
    inference(quant_intro,[status(thm)],[4]) ).

tff(6,plain,
    ( ! [Y: $i,X: $i] :
        ( subclass(X,Y)
        | member(not_subclass_element(X,Y),X) )
  <=> ! [Y: $i,X: $i] :
        ( subclass(X,Y)
        | member(not_subclass_element(X,Y),X) ) ),
    inference(rewrite,[status(thm)],]) ).

tff(7,plain,
    ^ [Y: $i,X: $i] :
      rewrite(
        ( ( member(not_subclass_element(X,Y),X)
          | subclass(X,Y) )
      <=> ( subclass(X,Y)
          | member(not_subclass_element(X,Y),X) ) )),
    inference(bind,[status(th)],]) ).

tff(8,plain,
    ( ! [Y: $i,X: $i] :
        ( member(not_subclass_element(X,Y),X)
        | subclass(X,Y) )
  <=> ! [Y: $i,X: $i] :
        ( subclass(X,Y)
        | member(not_subclass_element(X,Y),X) ) ),
    inference(quant_intro,[status(thm)],[7]) ).

tff(9,axiom,
    ! [Y: $i,X: $i] :
      ( member(not_subclass_element(X,Y),X)
      | subclass(X,Y) ),
    file('/export/starexec/sandbox2/benchmark/Axioms/SET004-0.ax',not_subclass_members1) ).

tff(10,plain,
    ! [Y: $i,X: $i] :
      ( subclass(X,Y)
      | member(not_subclass_element(X,Y),X) ),
    inference(modus_ponens,[status(thm)],[9,8]) ).

tff(11,plain,
    ! [Y: $i,X: $i] :
      ( subclass(X,Y)
      | member(not_subclass_element(X,Y),X) ),
    inference(modus_ponens,[status(thm)],[10,6]) ).

tff(12,plain,
    ! [Y: $i,X: $i] :
      ( subclass(X,Y)
      | member(not_subclass_element(X,Y),X) ),
    inference(skolemize,[status(sab)],[11]) ).

tff(13,plain,
    ! [Y: $i,X: $i] :
      ( subclass(X,Y)
      | member(not_subclass_element(X,Y),X) ),
    inference(modus_ponens,[status(thm)],[12,5]) ).

tff(14,plain,
    ( ( ~ ! [Y: $i,X: $i] :
            ( subclass(X,Y)
            | member(not_subclass_element(X,Y),X) )
      | subclass(null_class,x)
      | member(not_subclass_element(null_class,x),null_class) )
  <=> ( ~ ! [Y: $i,X: $i] :
            ( subclass(X,Y)
            | member(not_subclass_element(X,Y),X) )
      | subclass(null_class,x)
      | member(not_subclass_element(null_class,x),null_class) ) ),
    inference(rewrite,[status(thm)],]) ).

tff(15,plain,
    ( ~ ! [Y: $i,X: $i] :
          ( subclass(X,Y)
          | member(not_subclass_element(X,Y),X) )
    | subclass(null_class,x)
    | member(not_subclass_element(null_class,x),null_class) ),
    inference(quant_inst,[status(thm)],]) ).

tff(16,plain,
    ( ~ ! [Y: $i,X: $i] :
          ( subclass(X,Y)
          | member(not_subclass_element(X,Y),X) )
    | subclass(null_class,x)
    | member(not_subclass_element(null_class,x),null_class) ),
    inference(modus_ponens,[status(thm)],[15,14]) ).

tff(17,plain,
    member(not_subclass_element(null_class,x),null_class),
    inference(unit_resolution,[status(thm)],[16,13,3]) ).

tff(18,plain,
    ^ [Z: $i] :
      refl(
        ( ~ member(Z,null_class)
      <=> ~ member(Z,null_class) )),
    inference(bind,[status(th)],]) ).

tff(19,plain,
    ( ! [Z: $i] : ~ member(Z,null_class)
  <=> ! [Z: $i] : ~ member(Z,null_class) ),
    inference(quant_intro,[status(thm)],[18]) ).

tff(20,plain,
    ( ! [Z: $i] : ~ member(Z,null_class)
  <=> ! [Z: $i] : ~ member(Z,null_class) ),
    inference(rewrite,[status(thm)],]) ).

tff(21,axiom,
    ! [Z: $i] : ~ member(Z,null_class),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',existence_of_null_class) ).

tff(22,plain,
    ! [Z: $i] : ~ member(Z,null_class),
    inference(modus_ponens,[status(thm)],[21,20]) ).

tff(23,plain,
    ! [Z: $i] : ~ member(Z,null_class),
    inference(skolemize,[status(sab)],[22]) ).

tff(24,plain,
    ! [Z: $i] : ~ member(Z,null_class),
    inference(modus_ponens,[status(thm)],[23,19]) ).

tff(25,plain,
    ( ~ ! [Z: $i] : ~ member(Z,null_class)
    | ~ member(not_subclass_element(null_class,x),null_class) ),
    inference(quant_inst,[status(thm)],]) ).

tff(26,plain,
    $false,
    inference(unit_resolution,[status(thm)],[25,24,17]) ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.06/0.11  % Problem  : SET062-7 : TPTP v8.1.0. Bugfixed v2.1.0.
% 0.06/0.11  % Command  : z3_tptp -proof -model -t:%d -file:%s
% 0.11/0.32  % Computer : n027.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 : Sat Sep  3 02:08:35 EDT 2022
% 0.11/0.32  % CPUTime  : 
% 0.11/0.32  Z3tptp [4.8.9.0] (c) 2006-20**. Microsoft Corp.
% 0.11/0.32  Usage: tptp [options] [-file:]file
% 0.11/0.32    -h, -?       prints this message.
% 0.11/0.32    -smt2        print SMT-LIB2 benchmark.
% 0.11/0.32    -m, -model   generate model.
% 0.11/0.32    -p, -proof   generate proof.
% 0.11/0.32    -c, -core    generate unsat core of named formulas.
% 0.11/0.32    -st, -statistics display statistics.
% 0.11/0.32    -t:timeout   set timeout (in second).
% 0.11/0.32    -smt2status  display status in smt2 format instead of SZS.
% 0.11/0.32    -check_status check the status produced by Z3 against annotation in benchmark.
% 0.11/0.32    -<param>:<value> configuration parameter and value.
% 0.11/0.32    -o:<output-file> file to place output in.
% 0.17/0.39  % SZS status Unsatisfiable
% 0.17/0.39  % SZS output start Proof
% See solution above
%------------------------------------------------------------------------------