TSTP Solution File: NUM009-1 by Z3---4.8.9.0

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : Z3---4.8.9.0
% Problem  : NUM009-1 : TPTP v8.1.0. Bugfixed v1.2.1.
% Transfm  : none
% Format   : tptp
% Command  : z3_tptp -proof -model -t:%d -file:%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 : Sun Sep 18 13:02:37 EDT 2022

% Result   : Unsatisfiable 0.20s 0.46s
% Output   : Proof 0.20s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :    7
%            Number of leaves      :   29
% Syntax   : Number of formulae    :   57 (  13 unt;   6 typ;   0 def)
%            Number of atoms       :  227 (   0 equ)
%            Maximal formula atoms :   12 (   4 avg)
%            Number of connectives :  270 ( 106   ~; 138   |;   0   &)
%                                         (  26 <=>;   0  =>;   0  <=;   0 <~>)
%            Maximal formula depth :    8 (   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  :    4 (   3   >;   1   *;   0   +;   0  <<)
%            Number of predicates  :    7 (   6 usr;   1 prp; 0-3 aty)
%            Number of functors    :    4 (   4 usr;   3 con; 0-1 aty)
%            Number of variables   :   72 (  64   !;   0   ?;  72   :)

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

tff(f44_type,type,
    f44: $i > $i ).

tff(empty_set_type,type,
    empty_set: $i ).

tff(natural_numbers_type,type,
    natural_numbers: $i ).

tff(little_set_type,type,
    little_set: $i > $o ).

tff(infinity_type,type,
    infinity: $i ).

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

tff(2,axiom,
    ~ member(empty_set,natural_numbers),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',prove_zero_is_a_natural) ).

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

tff(4,plain,
    ^ [Z: $i] :
      refl(
        ( ( ~ member(Z,f44(Z))
          | member(Z,natural_numbers) )
      <=> ( ~ member(Z,f44(Z))
          | member(Z,natural_numbers) ) )),
    inference(bind,[status(th)],]) ).

tff(5,plain,
    ( ! [Z: $i] :
        ( ~ member(Z,f44(Z))
        | member(Z,natural_numbers) )
  <=> ! [Z: $i] :
        ( ~ member(Z,f44(Z))
        | member(Z,natural_numbers) ) ),
    inference(quant_intro,[status(thm)],[4]) ).

tff(6,plain,
    ( ! [Z: $i] :
        ( ~ member(Z,f44(Z))
        | member(Z,natural_numbers) )
  <=> ! [Z: $i] :
        ( ~ member(Z,f44(Z))
        | member(Z,natural_numbers) ) ),
    inference(rewrite,[status(thm)],]) ).

tff(7,plain,
    ^ [Z: $i] :
      rewrite(
        ( ( member(Z,natural_numbers)
          | ~ member(Z,f44(Z)) )
      <=> ( ~ member(Z,f44(Z))
          | member(Z,natural_numbers) ) )),
    inference(bind,[status(th)],]) ).

tff(8,plain,
    ( ! [Z: $i] :
        ( member(Z,natural_numbers)
        | ~ member(Z,f44(Z)) )
  <=> ! [Z: $i] :
        ( ~ member(Z,f44(Z))
        | member(Z,natural_numbers) ) ),
    inference(quant_intro,[status(thm)],[7]) ).

tff(9,axiom,
    ! [Z: $i] :
      ( member(Z,natural_numbers)
      | ~ member(Z,f44(Z)) ),
    file('/export/starexec/sandbox2/benchmark/Axioms/NUM003-0.ax',natural_numbers6) ).

tff(10,plain,
    ! [Z: $i] :
      ( ~ member(Z,f44(Z))
      | member(Z,natural_numbers) ),
    inference(modus_ponens,[status(thm)],[9,8]) ).

tff(11,plain,
    ! [Z: $i] :
      ( ~ member(Z,f44(Z))
      | member(Z,natural_numbers) ),
    inference(modus_ponens,[status(thm)],[10,6]) ).

tff(12,plain,
    ! [Z: $i] :
      ( ~ member(Z,f44(Z))
      | member(Z,natural_numbers) ),
    inference(skolemize,[status(sab)],[11]) ).

tff(13,plain,
    ! [Z: $i] :
      ( ~ member(Z,f44(Z))
      | member(Z,natural_numbers) ),
    inference(modus_ponens,[status(thm)],[12,5]) ).

tff(14,plain,
    ( ( ~ ! [Z: $i] :
            ( ~ member(Z,f44(Z))
            | member(Z,natural_numbers) )
      | ~ member(empty_set,f44(empty_set))
      | member(empty_set,natural_numbers) )
  <=> ( ~ ! [Z: $i] :
            ( ~ member(Z,f44(Z))
            | member(Z,natural_numbers) )
      | ~ member(empty_set,f44(empty_set))
      | member(empty_set,natural_numbers) ) ),
    inference(rewrite,[status(thm)],]) ).

tff(15,plain,
    ( ~ ! [Z: $i] :
          ( ~ member(Z,f44(Z))
          | member(Z,natural_numbers) )
    | ~ member(empty_set,f44(empty_set))
    | member(empty_set,natural_numbers) ),
    inference(quant_inst,[status(thm)],]) ).

tff(16,plain,
    ( ~ ! [Z: $i] :
          ( ~ member(Z,f44(Z))
          | member(Z,natural_numbers) )
    | ~ member(empty_set,f44(empty_set))
    | member(empty_set,natural_numbers) ),
    inference(modus_ponens,[status(thm)],[15,14]) ).

tff(17,plain,
    ~ member(empty_set,f44(empty_set)),
    inference(unit_resolution,[status(thm)],[16,13,3]) ).

tff(18,plain,
    ( member(empty_set,infinity)
  <=> member(empty_set,infinity) ),
    inference(rewrite,[status(thm)],]) ).

tff(19,axiom,
    member(empty_set,infinity),
    file('/export/starexec/sandbox2/benchmark/Axioms/SET003-0.ax',infinity2) ).

tff(20,plain,
    member(empty_set,infinity),
    inference(modus_ponens,[status(thm)],[19,18]) ).

tff(21,plain,
    ^ [Y: $i,X: $i] :
      refl(
        ( ( little_set(X)
          | ~ member(X,Y) )
      <=> ( little_set(X)
          | ~ member(X,Y) ) )),
    inference(bind,[status(th)],]) ).

tff(22,plain,
    ( ! [Y: $i,X: $i] :
        ( little_set(X)
        | ~ member(X,Y) )
  <=> ! [Y: $i,X: $i] :
        ( little_set(X)
        | ~ member(X,Y) ) ),
    inference(quant_intro,[status(thm)],[21]) ).

tff(23,plain,
    ( ! [Y: $i,X: $i] :
        ( little_set(X)
        | ~ member(X,Y) )
  <=> ! [Y: $i,X: $i] :
        ( little_set(X)
        | ~ member(X,Y) ) ),
    inference(rewrite,[status(thm)],]) ).

tff(24,plain,
    ^ [Y: $i,X: $i] :
      rewrite(
        ( ( ~ member(X,Y)
          | little_set(X) )
      <=> ( little_set(X)
          | ~ member(X,Y) ) )),
    inference(bind,[status(th)],]) ).

tff(25,plain,
    ( ! [Y: $i,X: $i] :
        ( ~ member(X,Y)
        | little_set(X) )
  <=> ! [Y: $i,X: $i] :
        ( little_set(X)
        | ~ member(X,Y) ) ),
    inference(quant_intro,[status(thm)],[24]) ).

tff(26,axiom,
    ! [Y: $i,X: $i] :
      ( ~ member(X,Y)
      | little_set(X) ),
    file('/export/starexec/sandbox2/benchmark/Axioms/SET003-0.ax',a2) ).

tff(27,plain,
    ! [Y: $i,X: $i] :
      ( little_set(X)
      | ~ member(X,Y) ),
    inference(modus_ponens,[status(thm)],[26,25]) ).

tff(28,plain,
    ! [Y: $i,X: $i] :
      ( little_set(X)
      | ~ member(X,Y) ),
    inference(modus_ponens,[status(thm)],[27,23]) ).

tff(29,plain,
    ! [Y: $i,X: $i] :
      ( little_set(X)
      | ~ member(X,Y) ),
    inference(skolemize,[status(sab)],[28]) ).

tff(30,plain,
    ! [Y: $i,X: $i] :
      ( little_set(X)
      | ~ member(X,Y) ),
    inference(modus_ponens,[status(thm)],[29,22]) ).

tff(31,plain,
    ( ( ~ ! [Y: $i,X: $i] :
            ( little_set(X)
            | ~ member(X,Y) )
      | little_set(empty_set)
      | ~ member(empty_set,infinity) )
  <=> ( ~ ! [Y: $i,X: $i] :
            ( little_set(X)
            | ~ member(X,Y) )
      | little_set(empty_set)
      | ~ member(empty_set,infinity) ) ),
    inference(rewrite,[status(thm)],]) ).

tff(32,plain,
    ( ~ ! [Y: $i,X: $i] :
          ( little_set(X)
          | ~ member(X,Y) )
    | little_set(empty_set)
    | ~ member(empty_set,infinity) ),
    inference(quant_inst,[status(thm)],]) ).

tff(33,plain,
    ( ~ ! [Y: $i,X: $i] :
          ( little_set(X)
          | ~ member(X,Y) )
    | little_set(empty_set)
    | ~ member(empty_set,infinity) ),
    inference(modus_ponens,[status(thm)],[32,31]) ).

tff(34,plain,
    little_set(empty_set),
    inference(unit_resolution,[status(thm)],[33,30,20]) ).

tff(35,plain,
    ^ [Z: $i] :
      refl(
        ( ( ~ little_set(Z)
          | member(empty_set,f44(Z))
          | member(Z,natural_numbers) )
      <=> ( ~ little_set(Z)
          | member(empty_set,f44(Z))
          | member(Z,natural_numbers) ) )),
    inference(bind,[status(th)],]) ).

tff(36,plain,
    ( ! [Z: $i] :
        ( ~ little_set(Z)
        | member(empty_set,f44(Z))
        | member(Z,natural_numbers) )
  <=> ! [Z: $i] :
        ( ~ little_set(Z)
        | member(empty_set,f44(Z))
        | member(Z,natural_numbers) ) ),
    inference(quant_intro,[status(thm)],[35]) ).

tff(37,plain,
    ( ! [Z: $i] :
        ( ~ little_set(Z)
        | member(empty_set,f44(Z))
        | member(Z,natural_numbers) )
  <=> ! [Z: $i] :
        ( ~ little_set(Z)
        | member(empty_set,f44(Z))
        | member(Z,natural_numbers) ) ),
    inference(rewrite,[status(thm)],]) ).

tff(38,plain,
    ^ [Z: $i] :
      trans(
        monotonicity(
          rewrite(
            ( ( member(Z,natural_numbers)
              | ~ little_set(Z) )
          <=> ( ~ little_set(Z)
              | member(Z,natural_numbers) ) )),
          ( ( member(Z,natural_numbers)
            | ~ little_set(Z)
            | member(empty_set,f44(Z)) )
        <=> ( ~ little_set(Z)
            | member(Z,natural_numbers)
            | member(empty_set,f44(Z)) ) )),
        rewrite(
          ( ( ~ little_set(Z)
            | member(Z,natural_numbers)
            | member(empty_set,f44(Z)) )
        <=> ( ~ little_set(Z)
            | member(empty_set,f44(Z))
            | member(Z,natural_numbers) ) )),
        ( ( member(Z,natural_numbers)
          | ~ little_set(Z)
          | member(empty_set,f44(Z)) )
      <=> ( ~ little_set(Z)
          | member(empty_set,f44(Z))
          | member(Z,natural_numbers) ) )),
    inference(bind,[status(th)],]) ).

tff(39,plain,
    ( ! [Z: $i] :
        ( member(Z,natural_numbers)
        | ~ little_set(Z)
        | member(empty_set,f44(Z)) )
  <=> ! [Z: $i] :
        ( ~ little_set(Z)
        | member(empty_set,f44(Z))
        | member(Z,natural_numbers) ) ),
    inference(quant_intro,[status(thm)],[38]) ).

tff(40,axiom,
    ! [Z: $i] :
      ( member(Z,natural_numbers)
      | ~ little_set(Z)
      | member(empty_set,f44(Z)) ),
    file('/export/starexec/sandbox2/benchmark/Axioms/NUM003-0.ax',natural_numbers4) ).

tff(41,plain,
    ! [Z: $i] :
      ( ~ little_set(Z)
      | member(empty_set,f44(Z))
      | member(Z,natural_numbers) ),
    inference(modus_ponens,[status(thm)],[40,39]) ).

tff(42,plain,
    ! [Z: $i] :
      ( ~ little_set(Z)
      | member(empty_set,f44(Z))
      | member(Z,natural_numbers) ),
    inference(modus_ponens,[status(thm)],[41,37]) ).

tff(43,plain,
    ! [Z: $i] :
      ( ~ little_set(Z)
      | member(empty_set,f44(Z))
      | member(Z,natural_numbers) ),
    inference(skolemize,[status(sab)],[42]) ).

tff(44,plain,
    ! [Z: $i] :
      ( ~ little_set(Z)
      | member(empty_set,f44(Z))
      | member(Z,natural_numbers) ),
    inference(modus_ponens,[status(thm)],[43,36]) ).

tff(45,plain,
    ( ( ~ ! [Z: $i] :
            ( ~ little_set(Z)
            | member(empty_set,f44(Z))
            | member(Z,natural_numbers) )
      | member(empty_set,natural_numbers)
      | member(empty_set,f44(empty_set))
      | ~ little_set(empty_set) )
  <=> ( ~ ! [Z: $i] :
            ( ~ little_set(Z)
            | member(empty_set,f44(Z))
            | member(Z,natural_numbers) )
      | member(empty_set,natural_numbers)
      | member(empty_set,f44(empty_set))
      | ~ little_set(empty_set) ) ),
    inference(rewrite,[status(thm)],]) ).

tff(46,plain,
    ( ( ~ little_set(empty_set)
      | member(empty_set,f44(empty_set))
      | member(empty_set,natural_numbers) )
  <=> ( member(empty_set,natural_numbers)
      | member(empty_set,f44(empty_set))
      | ~ little_set(empty_set) ) ),
    inference(rewrite,[status(thm)],]) ).

tff(47,plain,
    ( ( ~ ! [Z: $i] :
            ( ~ little_set(Z)
            | member(empty_set,f44(Z))
            | member(Z,natural_numbers) )
      | ~ little_set(empty_set)
      | member(empty_set,f44(empty_set))
      | member(empty_set,natural_numbers) )
  <=> ( ~ ! [Z: $i] :
            ( ~ little_set(Z)
            | member(empty_set,f44(Z))
            | member(Z,natural_numbers) )
      | member(empty_set,natural_numbers)
      | member(empty_set,f44(empty_set))
      | ~ little_set(empty_set) ) ),
    inference(monotonicity,[status(thm)],[46]) ).

tff(48,plain,
    ( ( ~ ! [Z: $i] :
            ( ~ little_set(Z)
            | member(empty_set,f44(Z))
            | member(Z,natural_numbers) )
      | ~ little_set(empty_set)
      | member(empty_set,f44(empty_set))
      | member(empty_set,natural_numbers) )
  <=> ( ~ ! [Z: $i] :
            ( ~ little_set(Z)
            | member(empty_set,f44(Z))
            | member(Z,natural_numbers) )
      | member(empty_set,natural_numbers)
      | member(empty_set,f44(empty_set))
      | ~ little_set(empty_set) ) ),
    inference(transitivity,[status(thm)],[47,45]) ).

tff(49,plain,
    ( ~ ! [Z: $i] :
          ( ~ little_set(Z)
          | member(empty_set,f44(Z))
          | member(Z,natural_numbers) )
    | ~ little_set(empty_set)
    | member(empty_set,f44(empty_set))
    | member(empty_set,natural_numbers) ),
    inference(quant_inst,[status(thm)],]) ).

tff(50,plain,
    ( ~ ! [Z: $i] :
          ( ~ little_set(Z)
          | member(empty_set,f44(Z))
          | member(Z,natural_numbers) )
    | member(empty_set,natural_numbers)
    | member(empty_set,f44(empty_set))
    | ~ little_set(empty_set) ),
    inference(modus_ponens,[status(thm)],[49,48]) ).

tff(51,plain,
    $false,
    inference(unit_resolution,[status(thm)],[50,44,3,34,17]) ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.11/0.11  % Problem  : NUM009-1 : TPTP v8.1.0. Bugfixed v1.2.1.
% 0.11/0.12  % Command  : z3_tptp -proof -model -t:%d -file:%s
% 0.12/0.33  % Computer : n010.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 : Fri Sep  2 06:16:28 EDT 2022
% 0.12/0.33  % CPUTime  : 
% 0.12/0.34  Z3tptp [4.8.9.0] (c) 2006-20**. Microsoft Corp.
% 0.12/0.34  Usage: tptp [options] [-file:]file
% 0.12/0.34    -h, -?       prints this message.
% 0.12/0.34    -smt2        print SMT-LIB2 benchmark.
% 0.12/0.34    -m, -model   generate model.
% 0.12/0.34    -p, -proof   generate proof.
% 0.12/0.34    -c, -core    generate unsat core of named formulas.
% 0.12/0.34    -st, -statistics display statistics.
% 0.12/0.34    -t:timeout   set timeout (in second).
% 0.12/0.34    -smt2status  display status in smt2 format instead of SZS.
% 0.12/0.34    -check_status check the status produced by Z3 against annotation in benchmark.
% 0.12/0.34    -<param>:<value> configuration parameter and value.
% 0.12/0.34    -o:<output-file> file to place output in.
% 0.20/0.46  % SZS status Unsatisfiable
% 0.20/0.46  % SZS output start Proof
% See solution above
%------------------------------------------------------------------------------