TSTP Solution File: SET080-7 by Z3---4.8.9.0

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : Z3---4.8.9.0
% Problem  : SET080-7 : 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 05:05:27 EDT 2022

% Result   : Unsatisfiable 0.14s 0.38s
% Output   : Proof 0.14s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :    4
%            Number of leaves      :   13
% Syntax   : Number of formulae    :   21 (   6 unt;   4 typ;   0 def)
%            Number of atoms       :   46 (   0 equ)
%            Maximal formula atoms :    8 (   2 avg)
%            Number of connectives :   54 (  26   ~;  22   |;   0   &)
%                                         (   6 <=>;   0  =>;   0  <=;   0 <~>)
%            Maximal formula depth :    7 (   3 avg)
%            Maximal term depth    :    2 (   1 avg)
%            Number of FOOLs       :    1 (   1 fml;   0 var)
%            Number of types       :    2 (   0 usr)
%            Number of type conns  :    3 (   2   >;   1   *;   0   +;   0  <<)
%            Number of predicates  :    3 (   2 usr;   1 prp; 0-2 aty)
%            Number of functors    :    3 (   3 usr;   2 con; 0-1 aty)
%            Number of variables   :   13 (  12   !;   0   ?;  13   :)

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

tff(singleton_type,type,
    singleton: $i > $i ).

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

tff(universal_class_type,type,
    universal_class: $i ).

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

tff(2,axiom,
    ~ member(null_class,singleton(null_class)),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',prove_null_class_in_its_singleton_1) ).

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

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

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

tff(6,plain,
    ( ! [X: $i] :
        ( ~ member(X,universal_class)
        | member(X,singleton(X)) )
  <=> ! [X: $i] :
        ( ~ member(X,universal_class)
        | member(X,singleton(X)) ) ),
    inference(rewrite,[status(thm)],]) ).

tff(7,axiom,
    ! [X: $i] :
      ( ~ member(X,universal_class)
      | member(X,singleton(X)) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',set_in_its_singleton) ).

tff(8,plain,
    ! [X: $i] :
      ( ~ member(X,universal_class)
      | member(X,singleton(X)) ),
    inference(modus_ponens,[status(thm)],[7,6]) ).

tff(9,plain,
    ! [X: $i] :
      ( ~ member(X,universal_class)
      | member(X,singleton(X)) ),
    inference(skolemize,[status(sab)],[8]) ).

tff(10,plain,
    ! [X: $i] :
      ( ~ member(X,universal_class)
      | member(X,singleton(X)) ),
    inference(modus_ponens,[status(thm)],[9,5]) ).

tff(11,plain,
    ( member(null_class,universal_class)
  <=> member(null_class,universal_class) ),
    inference(rewrite,[status(thm)],]) ).

tff(12,axiom,
    member(null_class,universal_class),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',null_class_is_a_set) ).

tff(13,plain,
    member(null_class,universal_class),
    inference(modus_ponens,[status(thm)],[12,11]) ).

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

tff(15,plain,
    ( ~ ! [X: $i] :
          ( ~ member(X,universal_class)
          | member(X,singleton(X)) )
    | ~ member(null_class,universal_class)
    | member(null_class,singleton(null_class)) ),
    inference(quant_inst,[status(thm)],]) ).

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

tff(17,plain,
    $false,
    inference(unit_resolution,[status(thm)],[16,13,10,3]) ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.06/0.09  % Problem  : SET080-7 : TPTP v8.1.0. Bugfixed v2.1.0.
% 0.06/0.10  % Command  : z3_tptp -proof -model -t:%d -file:%s
% 0.09/0.29  % Computer : n027.cluster.edu
% 0.09/0.29  % Model    : x86_64 x86_64
% 0.09/0.29  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.09/0.29  % Memory   : 8042.1875MB
% 0.09/0.29  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.09/0.29  % CPULimit : 300
% 0.09/0.29  % WCLimit  : 300
% 0.09/0.29  % DateTime : Sat Sep  3 02:22:20 EDT 2022
% 0.09/0.29  % CPUTime  : 
% 0.09/0.30  Z3tptp [4.8.9.0] (c) 2006-20**. Microsoft Corp.
% 0.09/0.30  Usage: tptp [options] [-file:]file
% 0.09/0.30    -h, -?       prints this message.
% 0.09/0.30    -smt2        print SMT-LIB2 benchmark.
% 0.09/0.30    -m, -model   generate model.
% 0.09/0.30    -p, -proof   generate proof.
% 0.09/0.30    -c, -core    generate unsat core of named formulas.
% 0.09/0.30    -st, -statistics display statistics.
% 0.09/0.30    -t:timeout   set timeout (in second).
% 0.09/0.30    -smt2status  display status in smt2 format instead of SZS.
% 0.09/0.30    -check_status check the status produced by Z3 against annotation in benchmark.
% 0.09/0.30    -<param>:<value> configuration parameter and value.
% 0.09/0.30    -o:<output-file> file to place output in.
% 0.14/0.38  % SZS status Unsatisfiable
% 0.14/0.38  % SZS output start Proof
% See solution above
%------------------------------------------------------------------------------