TSTP Solution File: SET080-6 by Z3---4.8.9.0

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : Z3---4.8.9.0
% Problem  : SET080-6 : TPTP v8.1.0. Bugfixed v2.1.0.
% Transfm  : none
% Format   : tptp
% Command  : z3_tptp -proof -model -t:%d -file:%s

% Computer : n009.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 0.19s 0.41s
% Output   : Proof 0.19s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :   11
%            Number of leaves      :   36
% Syntax   : Number of formulae    :   73 (  24 unt;   8 typ;   0 def)
%            Number of atoms       :  212 (  13 equ)
%            Maximal formula atoms :   12 (   3 avg)
%            Number of connectives :  253 ( 118   ~; 107   |;   0   &)
%                                         (  28 <=>;   0  =>;   0  <=;   0 <~>)
%            Maximal formula depth :   10 (   4 avg)
%            Maximal term depth    :    2 (   1 avg)
%            Number of FOOLs       :   12 (  12 fml;   0 var)
%            Number of types       :    2 (   0 usr)
%            Number of type conns  :    8 (   5   >;   3   *;   0   +;   0  <<)
%            Number of predicates  :    9 (   7 usr;   1 prp; 0-3 aty)
%            Number of functors    :    5 (   5 usr;   3 con; 0-2 aty)
%            Number of variables   :  110 (  99   !;   0   ?; 110   :)

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

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

tff(omega_type,type,
    omega: $i ).

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

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

tff(unordered_pair_type,type,
    unordered_pair: ( $i * $i ) > $i ).

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

tff(inductive_type,type,
    inductive: $i > $o ).

tff(1,plain,
    ^ [X: $i] :
      refl(
        ( ( unordered_pair(X,X) = singleton(X) )
      <=> ( unordered_pair(X,X) = singleton(X) ) )),
    inference(bind,[status(th)],]) ).

tff(2,plain,
    ( ! [X: $i] : ( unordered_pair(X,X) = singleton(X) )
  <=> ! [X: $i] : ( unordered_pair(X,X) = singleton(X) ) ),
    inference(quant_intro,[status(thm)],[1]) ).

tff(3,plain,
    ( ! [X: $i] : ( unordered_pair(X,X) = singleton(X) )
  <=> ! [X: $i] : ( unordered_pair(X,X) = singleton(X) ) ),
    inference(rewrite,[status(thm)],]) ).

tff(4,axiom,
    ! [X: $i] : ( unordered_pair(X,X) = singleton(X) ),
    file('/export/starexec/sandbox2/benchmark/Axioms/SET004-0.ax',singleton_set) ).

tff(5,plain,
    ! [X: $i] : ( unordered_pair(X,X) = singleton(X) ),
    inference(modus_ponens,[status(thm)],[4,3]) ).

tff(6,plain,
    ! [X: $i] : ( unordered_pair(X,X) = singleton(X) ),
    inference(skolemize,[status(sab)],[5]) ).

tff(7,plain,
    ! [X: $i] : ( unordered_pair(X,X) = singleton(X) ),
    inference(modus_ponens,[status(thm)],[6,2]) ).

tff(8,plain,
    ( ~ ! [X: $i] : ( unordered_pair(X,X) = singleton(X) )
    | ( unordered_pair(null_class,null_class) = singleton(null_class) ) ),
    inference(quant_inst,[status(thm)],]) ).

tff(9,plain,
    unordered_pair(null_class,null_class) = singleton(null_class),
    inference(unit_resolution,[status(thm)],[8,7]) ).

tff(10,plain,
    ( member(null_class,unordered_pair(null_class,null_class))
  <=> member(null_class,singleton(null_class)) ),
    inference(monotonicity,[status(thm)],[9]) ).

tff(11,plain,
    ( member(null_class,singleton(null_class))
  <=> member(null_class,unordered_pair(null_class,null_class)) ),
    inference(symmetry,[status(thm)],[10]) ).

tff(12,plain,
    ( ~ member(null_class,singleton(null_class))
  <=> ~ member(null_class,unordered_pair(null_class,null_class)) ),
    inference(monotonicity,[status(thm)],[11]) ).

tff(13,plain,
    ( ~ member(null_class,singleton(null_class))
  <=> ~ member(null_class,singleton(null_class)) ),
    inference(rewrite,[status(thm)],]) ).

tff(14,axiom,
    ~ member(null_class,singleton(null_class)),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',prove_null_class_in_its_singleton_1) ).

tff(15,plain,
    ~ member(null_class,singleton(null_class)),
    inference(modus_ponens,[status(thm)],[14,13]) ).

tff(16,plain,
    ~ member(null_class,unordered_pair(null_class,null_class)),
    inference(modus_ponens,[status(thm)],[15,12]) ).

tff(17,plain,
    ^ [Y: $i,X: $i] :
      refl(
        ( ( ~ member(X,universal_class)
          | member(X,unordered_pair(X,Y)) )
      <=> ( ~ member(X,universal_class)
          | member(X,unordered_pair(X,Y)) ) )),
    inference(bind,[status(th)],]) ).

tff(18,plain,
    ( ! [Y: $i,X: $i] :
        ( ~ member(X,universal_class)
        | member(X,unordered_pair(X,Y)) )
  <=> ! [Y: $i,X: $i] :
        ( ~ member(X,universal_class)
        | member(X,unordered_pair(X,Y)) ) ),
    inference(quant_intro,[status(thm)],[17]) ).

tff(19,plain,
    ( ! [Y: $i,X: $i] :
        ( ~ member(X,universal_class)
        | member(X,unordered_pair(X,Y)) )
  <=> ! [Y: $i,X: $i] :
        ( ~ member(X,universal_class)
        | member(X,unordered_pair(X,Y)) ) ),
    inference(rewrite,[status(thm)],]) ).

tff(20,axiom,
    ! [Y: $i,X: $i] :
      ( ~ member(X,universal_class)
      | member(X,unordered_pair(X,Y)) ),
    file('/export/starexec/sandbox2/benchmark/Axioms/SET004-0.ax',unordered_pair2) ).

tff(21,plain,
    ! [Y: $i,X: $i] :
      ( ~ member(X,universal_class)
      | member(X,unordered_pair(X,Y)) ),
    inference(modus_ponens,[status(thm)],[20,19]) ).

tff(22,plain,
    ! [Y: $i,X: $i] :
      ( ~ member(X,universal_class)
      | member(X,unordered_pair(X,Y)) ),
    inference(skolemize,[status(sab)],[21]) ).

tff(23,plain,
    ! [Y: $i,X: $i] :
      ( ~ member(X,universal_class)
      | member(X,unordered_pair(X,Y)) ),
    inference(modus_ponens,[status(thm)],[22,18]) ).

tff(24,plain,
    ( ( ~ ! [Y: $i,X: $i] :
            ( ~ member(X,universal_class)
            | member(X,unordered_pair(X,Y)) )
      | ~ member(null_class,universal_class)
      | member(null_class,unordered_pair(null_class,null_class)) )
  <=> ( ~ ! [Y: $i,X: $i] :
            ( ~ member(X,universal_class)
            | member(X,unordered_pair(X,Y)) )
      | ~ member(null_class,universal_class)
      | member(null_class,unordered_pair(null_class,null_class)) ) ),
    inference(rewrite,[status(thm)],]) ).

tff(25,plain,
    ( ~ ! [Y: $i,X: $i] :
          ( ~ member(X,universal_class)
          | member(X,unordered_pair(X,Y)) )
    | ~ member(null_class,universal_class)
    | member(null_class,unordered_pair(null_class,null_class)) ),
    inference(quant_inst,[status(thm)],]) ).

tff(26,plain,
    ( ~ ! [Y: $i,X: $i] :
          ( ~ member(X,universal_class)
          | member(X,unordered_pair(X,Y)) )
    | ~ member(null_class,universal_class)
    | member(null_class,unordered_pair(null_class,null_class)) ),
    inference(modus_ponens,[status(thm)],[25,24]) ).

tff(27,plain,
    ( ~ member(null_class,universal_class)
    | member(null_class,unordered_pair(null_class,null_class)) ),
    inference(unit_resolution,[status(thm)],[26,23]) ).

tff(28,plain,
    ~ member(null_class,universal_class),
    inference(unit_resolution,[status(thm)],[27,16]) ).

tff(29,plain,
    ( inductive(omega)
  <=> inductive(omega) ),
    inference(rewrite,[status(thm)],]) ).

tff(30,axiom,
    inductive(omega),
    file('/export/starexec/sandbox2/benchmark/Axioms/SET004-0.ax',omega_is_inductive1) ).

tff(31,plain,
    inductive(omega),
    inference(modus_ponens,[status(thm)],[30,29]) ).

tff(32,plain,
    ^ [X: $i] :
      refl(
        ( ( ~ inductive(X)
          | member(null_class,X) )
      <=> ( ~ inductive(X)
          | member(null_class,X) ) )),
    inference(bind,[status(th)],]) ).

tff(33,plain,
    ( ! [X: $i] :
        ( ~ inductive(X)
        | member(null_class,X) )
  <=> ! [X: $i] :
        ( ~ inductive(X)
        | member(null_class,X) ) ),
    inference(quant_intro,[status(thm)],[32]) ).

tff(34,plain,
    ( ! [X: $i] :
        ( ~ inductive(X)
        | member(null_class,X) )
  <=> ! [X: $i] :
        ( ~ inductive(X)
        | member(null_class,X) ) ),
    inference(rewrite,[status(thm)],]) ).

tff(35,axiom,
    ! [X: $i] :
      ( ~ inductive(X)
      | member(null_class,X) ),
    file('/export/starexec/sandbox2/benchmark/Axioms/SET004-0.ax',inductive1) ).

tff(36,plain,
    ! [X: $i] :
      ( ~ inductive(X)
      | member(null_class,X) ),
    inference(modus_ponens,[status(thm)],[35,34]) ).

tff(37,plain,
    ! [X: $i] :
      ( ~ inductive(X)
      | member(null_class,X) ),
    inference(skolemize,[status(sab)],[36]) ).

tff(38,plain,
    ! [X: $i] :
      ( ~ inductive(X)
      | member(null_class,X) ),
    inference(modus_ponens,[status(thm)],[37,33]) ).

tff(39,plain,
    ( ( ~ ! [X: $i] :
            ( ~ inductive(X)
            | member(null_class,X) )
      | ~ inductive(omega)
      | member(null_class,omega) )
  <=> ( ~ ! [X: $i] :
            ( ~ inductive(X)
            | member(null_class,X) )
      | ~ inductive(omega)
      | member(null_class,omega) ) ),
    inference(rewrite,[status(thm)],]) ).

tff(40,plain,
    ( ~ ! [X: $i] :
          ( ~ inductive(X)
          | member(null_class,X) )
    | ~ inductive(omega)
    | member(null_class,omega) ),
    inference(quant_inst,[status(thm)],]) ).

tff(41,plain,
    ( ~ ! [X: $i] :
          ( ~ inductive(X)
          | member(null_class,X) )
    | ~ inductive(omega)
    | member(null_class,omega) ),
    inference(modus_ponens,[status(thm)],[40,39]) ).

tff(42,plain,
    member(null_class,omega),
    inference(unit_resolution,[status(thm)],[41,38,31]) ).

tff(43,plain,
    ^ [Y: $i,U: $i,X: $i] :
      refl(
        ( ( member(U,Y)
          | ~ member(U,X)
          | ~ subclass(X,Y) )
      <=> ( member(U,Y)
          | ~ member(U,X)
          | ~ subclass(X,Y) ) )),
    inference(bind,[status(th)],]) ).

tff(44,plain,
    ( ! [Y: $i,U: $i,X: $i] :
        ( member(U,Y)
        | ~ member(U,X)
        | ~ subclass(X,Y) )
  <=> ! [Y: $i,U: $i,X: $i] :
        ( member(U,Y)
        | ~ member(U,X)
        | ~ subclass(X,Y) ) ),
    inference(quant_intro,[status(thm)],[43]) ).

tff(45,plain,
    ( ! [Y: $i,U: $i,X: $i] :
        ( member(U,Y)
        | ~ member(U,X)
        | ~ subclass(X,Y) )
  <=> ! [Y: $i,U: $i,X: $i] :
        ( member(U,Y)
        | ~ member(U,X)
        | ~ subclass(X,Y) ) ),
    inference(rewrite,[status(thm)],]) ).

tff(46,plain,
    ^ [Y: $i,U: $i,X: $i] :
      trans(
        monotonicity(
          rewrite(
            ( ( ~ subclass(X,Y)
              | ~ member(U,X) )
          <=> ( ~ member(U,X)
              | ~ subclass(X,Y) ) )),
          ( ( ~ subclass(X,Y)
            | ~ member(U,X)
            | member(U,Y) )
        <=> ( ~ member(U,X)
            | ~ subclass(X,Y)
            | member(U,Y) ) )),
        rewrite(
          ( ( ~ member(U,X)
            | ~ subclass(X,Y)
            | member(U,Y) )
        <=> ( member(U,Y)
            | ~ member(U,X)
            | ~ subclass(X,Y) ) )),
        ( ( ~ subclass(X,Y)
          | ~ member(U,X)
          | member(U,Y) )
      <=> ( member(U,Y)
          | ~ member(U,X)
          | ~ subclass(X,Y) ) )),
    inference(bind,[status(th)],]) ).

tff(47,plain,
    ( ! [Y: $i,U: $i,X: $i] :
        ( ~ subclass(X,Y)
        | ~ member(U,X)
        | member(U,Y) )
  <=> ! [Y: $i,U: $i,X: $i] :
        ( member(U,Y)
        | ~ member(U,X)
        | ~ subclass(X,Y) ) ),
    inference(quant_intro,[status(thm)],[46]) ).

tff(48,axiom,
    ! [Y: $i,U: $i,X: $i] :
      ( ~ subclass(X,Y)
      | ~ member(U,X)
      | member(U,Y) ),
    file('/export/starexec/sandbox2/benchmark/Axioms/SET004-0.ax',subclass_members) ).

tff(49,plain,
    ! [Y: $i,U: $i,X: $i] :
      ( member(U,Y)
      | ~ member(U,X)
      | ~ subclass(X,Y) ),
    inference(modus_ponens,[status(thm)],[48,47]) ).

tff(50,plain,
    ! [Y: $i,U: $i,X: $i] :
      ( member(U,Y)
      | ~ member(U,X)
      | ~ subclass(X,Y) ),
    inference(modus_ponens,[status(thm)],[49,45]) ).

tff(51,plain,
    ! [Y: $i,U: $i,X: $i] :
      ( member(U,Y)
      | ~ member(U,X)
      | ~ subclass(X,Y) ),
    inference(skolemize,[status(sab)],[50]) ).

tff(52,plain,
    ! [Y: $i,U: $i,X: $i] :
      ( member(U,Y)
      | ~ member(U,X)
      | ~ subclass(X,Y) ),
    inference(modus_ponens,[status(thm)],[51,44]) ).

tff(53,plain,
    ( ( ~ ! [Y: $i,U: $i,X: $i] :
            ( member(U,Y)
            | ~ member(U,X)
            | ~ subclass(X,Y) )
      | member(null_class,universal_class)
      | ~ member(null_class,omega)
      | ~ subclass(omega,universal_class) )
  <=> ( ~ ! [Y: $i,U: $i,X: $i] :
            ( member(U,Y)
            | ~ member(U,X)
            | ~ subclass(X,Y) )
      | member(null_class,universal_class)
      | ~ member(null_class,omega)
      | ~ subclass(omega,universal_class) ) ),
    inference(rewrite,[status(thm)],]) ).

tff(54,plain,
    ( ~ ! [Y: $i,U: $i,X: $i] :
          ( member(U,Y)
          | ~ member(U,X)
          | ~ subclass(X,Y) )
    | member(null_class,universal_class)
    | ~ member(null_class,omega)
    | ~ subclass(omega,universal_class) ),
    inference(quant_inst,[status(thm)],]) ).

tff(55,plain,
    ( ~ ! [Y: $i,U: $i,X: $i] :
          ( member(U,Y)
          | ~ member(U,X)
          | ~ subclass(X,Y) )
    | member(null_class,universal_class)
    | ~ member(null_class,omega)
    | ~ subclass(omega,universal_class) ),
    inference(modus_ponens,[status(thm)],[54,53]) ).

tff(56,plain,
    ~ subclass(omega,universal_class),
    inference(unit_resolution,[status(thm)],[55,52,42,28]) ).

tff(57,plain,
    ^ [X: $i] :
      refl(
        ( subclass(X,universal_class)
      <=> subclass(X,universal_class) )),
    inference(bind,[status(th)],]) ).

tff(58,plain,
    ( ! [X: $i] : subclass(X,universal_class)
  <=> ! [X: $i] : subclass(X,universal_class) ),
    inference(quant_intro,[status(thm)],[57]) ).

tff(59,plain,
    ( ! [X: $i] : subclass(X,universal_class)
  <=> ! [X: $i] : subclass(X,universal_class) ),
    inference(rewrite,[status(thm)],]) ).

tff(60,axiom,
    ! [X: $i] : subclass(X,universal_class),
    file('/export/starexec/sandbox2/benchmark/Axioms/SET004-0.ax',class_elements_are_sets) ).

tff(61,plain,
    ! [X: $i] : subclass(X,universal_class),
    inference(modus_ponens,[status(thm)],[60,59]) ).

tff(62,plain,
    ! [X: $i] : subclass(X,universal_class),
    inference(skolemize,[status(sab)],[61]) ).

tff(63,plain,
    ! [X: $i] : subclass(X,universal_class),
    inference(modus_ponens,[status(thm)],[62,58]) ).

tff(64,plain,
    ( ~ ! [X: $i] : subclass(X,universal_class)
    | subclass(omega,universal_class) ),
    inference(quant_inst,[status(thm)],]) ).

tff(65,plain,
    $false,
    inference(unit_resolution,[status(thm)],[64,63,56]) ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.06/0.11  % Problem  : SET080-6 : TPTP v8.1.0. Bugfixed v2.1.0.
% 0.06/0.12  % Command  : z3_tptp -proof -model -t:%d -file:%s
% 0.12/0.33  % Computer : n009.cluster.edu
% 0.12/0.33  % Model    : x86_64 x86_64
% 0.12/0.33  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.12/0.33  % Memory   : 8042.1875MB
% 0.12/0.33  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.12/0.33  % CPULimit : 300
% 0.12/0.33  % WCLimit  : 300
% 0.12/0.33  % DateTime : Sat Sep  3 02:04:20 EDT 2022
% 0.12/0.33  % CPUTime  : 
% 0.12/0.33  Z3tptp [4.8.9.0] (c) 2006-20**. Microsoft Corp.
% 0.12/0.33  Usage: tptp [options] [-file:]file
% 0.12/0.33    -h, -?       prints this message.
% 0.12/0.33    -smt2        print SMT-LIB2 benchmark.
% 0.12/0.33    -m, -model   generate model.
% 0.12/0.33    -p, -proof   generate proof.
% 0.12/0.33    -c, -core    generate unsat core of named formulas.
% 0.12/0.33    -st, -statistics display statistics.
% 0.12/0.33    -t:timeout   set timeout (in second).
% 0.12/0.33    -smt2status  display status in smt2 format instead of SZS.
% 0.12/0.33    -check_status check the status produced by Z3 against annotation in benchmark.
% 0.12/0.33    -<param>:<value> configuration parameter and value.
% 0.12/0.33    -o:<output-file> file to place output in.
% 0.19/0.41  % SZS status Unsatisfiable
% 0.19/0.41  % SZS output start Proof
% See solution above
%------------------------------------------------------------------------------