TSTP Solution File: HEN005-4 by Z3---4.8.9.0

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : Z3---4.8.9.0
% Problem  : HEN005-4 : TPTP v8.1.0. Released v1.0.0.
% Transfm  : none
% Format   : tptp
% Command  : z3_tptp -proof -model -t:%d -file:%s

% Computer : n006.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 : Fri Sep 16 22:39:48 EDT 2022

% Result   : Unsatisfiable 0.20s 0.40s
% Output   : Proof 0.20s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :   11
%            Number of leaves      :   38
% Syntax   : Number of formulae    :   89 (  41 unt;   6 typ;   0 def)
%            Number of atoms       :  187 (  97 equ)
%            Maximal formula atoms :    8 (   2 avg)
%            Number of connectives :  180 (  81   ~;  72   |;   0   &)
%                                         (  27 <=>;   0  =>;   0  <=;   0 <~>)
%            Maximal formula depth :    8 (   3 avg)
%            Maximal term depth    :    3 (   1 avg)
%            Number of FOOLs       :    5 (   5 fml;   0 var)
%            Number of types       :    2 (   0 usr)
%            Number of type conns  :    4 (   2   >;   2   *;   0   +;   0  <<)
%            Number of predicates  :    4 (   2 usr;   1 prp; 0-2 aty)
%            Number of functors    :    5 (   5 usr;   4 con; 0-2 aty)
%            Number of variables   :  118 ( 109   !;   0   ?; 118   :)

% Comments : 
%------------------------------------------------------------------------------
tff(less_equal_type,type,
    less_equal: ( $i * $i ) > $o ).

tff(zero_type,type,
    zero: $i ).

tff(divide_type,type,
    divide: ( $i * $i ) > $i ).

tff(c_type,type,
    c: $i ).

tff(a_type,type,
    a: $i ).

tff(b_type,type,
    b: $i ).

tff(1,plain,
    ( less_equal(a,b)
  <=> less_equal(a,b) ),
    inference(rewrite,[status(thm)],]) ).

tff(2,axiom,
    less_equal(a,b),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',a_LE_b) ).

tff(3,plain,
    less_equal(a,b),
    inference(modus_ponens,[status(thm)],[2,1]) ).

tff(4,plain,
    ^ [Y: $i,X: $i] :
      refl(
        ( ( ~ less_equal(X,Y)
          | ( divide(X,Y) = zero ) )
      <=> ( ~ less_equal(X,Y)
          | ( divide(X,Y) = zero ) ) )),
    inference(bind,[status(th)],]) ).

tff(5,plain,
    ( ! [Y: $i,X: $i] :
        ( ~ less_equal(X,Y)
        | ( divide(X,Y) = zero ) )
  <=> ! [Y: $i,X: $i] :
        ( ~ less_equal(X,Y)
        | ( divide(X,Y) = zero ) ) ),
    inference(quant_intro,[status(thm)],[4]) ).

tff(6,plain,
    ( ! [Y: $i,X: $i] :
        ( ~ less_equal(X,Y)
        | ( divide(X,Y) = zero ) )
  <=> ! [Y: $i,X: $i] :
        ( ~ less_equal(X,Y)
        | ( divide(X,Y) = zero ) ) ),
    inference(rewrite,[status(thm)],]) ).

tff(7,axiom,
    ! [Y: $i,X: $i] :
      ( ~ less_equal(X,Y)
      | ( divide(X,Y) = zero ) ),
    file('/export/starexec/sandbox/benchmark/Axioms/HEN002-0.ax',quotient_less_equal1) ).

tff(8,plain,
    ! [Y: $i,X: $i] :
      ( ~ less_equal(X,Y)
      | ( divide(X,Y) = zero ) ),
    inference(modus_ponens,[status(thm)],[7,6]) ).

tff(9,plain,
    ! [Y: $i,X: $i] :
      ( ~ less_equal(X,Y)
      | ( divide(X,Y) = zero ) ),
    inference(skolemize,[status(sab)],[8]) ).

tff(10,plain,
    ! [Y: $i,X: $i] :
      ( ~ less_equal(X,Y)
      | ( divide(X,Y) = zero ) ),
    inference(modus_ponens,[status(thm)],[9,5]) ).

tff(11,plain,
    ( ( ~ ! [Y: $i,X: $i] :
            ( ~ less_equal(X,Y)
            | ( divide(X,Y) = zero ) )
      | ~ less_equal(a,b)
      | ( divide(a,b) = zero ) )
  <=> ( ~ ! [Y: $i,X: $i] :
            ( ~ less_equal(X,Y)
            | ( divide(X,Y) = zero ) )
      | ~ less_equal(a,b)
      | ( divide(a,b) = zero ) ) ),
    inference(rewrite,[status(thm)],]) ).

tff(12,plain,
    ( ~ ! [Y: $i,X: $i] :
          ( ~ less_equal(X,Y)
          | ( divide(X,Y) = zero ) )
    | ~ less_equal(a,b)
    | ( divide(a,b) = zero ) ),
    inference(quant_inst,[status(thm)],]) ).

tff(13,plain,
    ( ~ ! [Y: $i,X: $i] :
          ( ~ less_equal(X,Y)
          | ( divide(X,Y) = zero ) )
    | ~ less_equal(a,b)
    | ( divide(a,b) = zero ) ),
    inference(modus_ponens,[status(thm)],[12,11]) ).

tff(14,plain,
    divide(a,b) = zero,
    inference(unit_resolution,[status(thm)],[13,10,3]) ).

tff(15,plain,
    divide(divide(a,b),c) = divide(zero,c),
    inference(monotonicity,[status(thm)],[14]) ).

tff(16,plain,
    divide(zero,c) = divide(divide(a,b),c),
    inference(symmetry,[status(thm)],[15]) ).

tff(17,plain,
    ^ [X: $i] :
      refl(
        ( ( divide(zero,X) = zero )
      <=> ( divide(zero,X) = zero ) )),
    inference(bind,[status(th)],]) ).

tff(18,plain,
    ( ! [X: $i] : ( divide(zero,X) = zero )
  <=> ! [X: $i] : ( divide(zero,X) = zero ) ),
    inference(quant_intro,[status(thm)],[17]) ).

tff(19,plain,
    ( ! [X: $i] : ( divide(zero,X) = zero )
  <=> ! [X: $i] : ( divide(zero,X) = zero ) ),
    inference(rewrite,[status(thm)],]) ).

tff(20,axiom,
    ! [X: $i] : ( divide(zero,X) = zero ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',zero_divide_anything_is_zero) ).

tff(21,plain,
    ! [X: $i] : ( divide(zero,X) = zero ),
    inference(modus_ponens,[status(thm)],[20,19]) ).

tff(22,plain,
    ! [X: $i] : ( divide(zero,X) = zero ),
    inference(skolemize,[status(sab)],[21]) ).

tff(23,plain,
    ! [X: $i] : ( divide(zero,X) = zero ),
    inference(modus_ponens,[status(thm)],[22,18]) ).

tff(24,plain,
    ( ~ ! [X: $i] : ( divide(zero,X) = zero )
    | ( divide(zero,c) = zero ) ),
    inference(quant_inst,[status(thm)],]) ).

tff(25,plain,
    divide(zero,c) = zero,
    inference(unit_resolution,[status(thm)],[24,23]) ).

tff(26,plain,
    zero = divide(zero,c),
    inference(symmetry,[status(thm)],[25]) ).

tff(27,plain,
    zero = divide(divide(a,b),c),
    inference(transitivity,[status(thm)],[26,16]) ).

tff(28,plain,
    ( less_equal(b,c)
  <=> less_equal(b,c) ),
    inference(rewrite,[status(thm)],]) ).

tff(29,axiom,
    less_equal(b,c),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',b_LE_c) ).

tff(30,plain,
    less_equal(b,c),
    inference(modus_ponens,[status(thm)],[29,28]) ).

tff(31,plain,
    ( ( ~ ! [Y: $i,X: $i] :
            ( ~ less_equal(X,Y)
            | ( divide(X,Y) = zero ) )
      | ~ less_equal(b,c)
      | ( divide(b,c) = zero ) )
  <=> ( ~ ! [Y: $i,X: $i] :
            ( ~ less_equal(X,Y)
            | ( divide(X,Y) = zero ) )
      | ~ less_equal(b,c)
      | ( divide(b,c) = zero ) ) ),
    inference(rewrite,[status(thm)],]) ).

tff(32,plain,
    ( ~ ! [Y: $i,X: $i] :
          ( ~ less_equal(X,Y)
          | ( divide(X,Y) = zero ) )
    | ~ less_equal(b,c)
    | ( divide(b,c) = zero ) ),
    inference(quant_inst,[status(thm)],]) ).

tff(33,plain,
    ( ~ ! [Y: $i,X: $i] :
          ( ~ less_equal(X,Y)
          | ( divide(X,Y) = zero ) )
    | ~ less_equal(b,c)
    | ( divide(b,c) = zero ) ),
    inference(modus_ponens,[status(thm)],[32,31]) ).

tff(34,plain,
    divide(b,c) = zero,
    inference(unit_resolution,[status(thm)],[33,10,30]) ).

tff(35,plain,
    divide(divide(a,c),divide(b,c)) = divide(divide(a,c),zero),
    inference(monotonicity,[status(thm)],[34]) ).

tff(36,plain,
    divide(divide(a,c),zero) = divide(divide(a,c),divide(b,c)),
    inference(symmetry,[status(thm)],[35]) ).

tff(37,plain,
    ^ [X: $i] :
      refl(
        ( ( divide(X,zero) = X )
      <=> ( divide(X,zero) = X ) )),
    inference(bind,[status(th)],]) ).

tff(38,plain,
    ( ! [X: $i] : ( divide(X,zero) = X )
  <=> ! [X: $i] : ( divide(X,zero) = X ) ),
    inference(quant_intro,[status(thm)],[37]) ).

tff(39,plain,
    ( ! [X: $i] : ( divide(X,zero) = X )
  <=> ! [X: $i] : ( divide(X,zero) = X ) ),
    inference(rewrite,[status(thm)],]) ).

tff(40,axiom,
    ! [X: $i] : ( divide(X,zero) = X ),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',x_divide_zero_is_x) ).

tff(41,plain,
    ! [X: $i] : ( divide(X,zero) = X ),
    inference(modus_ponens,[status(thm)],[40,39]) ).

tff(42,plain,
    ! [X: $i] : ( divide(X,zero) = X ),
    inference(skolemize,[status(sab)],[41]) ).

tff(43,plain,
    ! [X: $i] : ( divide(X,zero) = X ),
    inference(modus_ponens,[status(thm)],[42,38]) ).

tff(44,plain,
    ( ~ ! [X: $i] : ( divide(X,zero) = X )
    | ( divide(divide(a,c),zero) = divide(a,c) ) ),
    inference(quant_inst,[status(thm)],]) ).

tff(45,plain,
    divide(divide(a,c),zero) = divide(a,c),
    inference(unit_resolution,[status(thm)],[44,43]) ).

tff(46,plain,
    divide(a,c) = divide(divide(a,c),zero),
    inference(symmetry,[status(thm)],[45]) ).

tff(47,plain,
    divide(a,c) = divide(divide(a,c),divide(b,c)),
    inference(transitivity,[status(thm)],[46,36]) ).

tff(48,plain,
    ( less_equal(divide(a,c),zero)
  <=> less_equal(divide(divide(a,c),divide(b,c)),divide(divide(a,b),c)) ),
    inference(monotonicity,[status(thm)],[47,27]) ).

tff(49,plain,
    ( less_equal(divide(divide(a,c),divide(b,c)),divide(divide(a,b),c))
  <=> less_equal(divide(a,c),zero) ),
    inference(symmetry,[status(thm)],[48]) ).

tff(50,plain,
    ^ [Z: $i,Y: $i,X: $i] :
      refl(
        ( less_equal(divide(divide(X,Z),divide(Y,Z)),divide(divide(X,Y),Z))
      <=> less_equal(divide(divide(X,Z),divide(Y,Z)),divide(divide(X,Y),Z)) )),
    inference(bind,[status(th)],]) ).

tff(51,plain,
    ( ! [Z: $i,Y: $i,X: $i] : less_equal(divide(divide(X,Z),divide(Y,Z)),divide(divide(X,Y),Z))
  <=> ! [Z: $i,Y: $i,X: $i] : less_equal(divide(divide(X,Z),divide(Y,Z)),divide(divide(X,Y),Z)) ),
    inference(quant_intro,[status(thm)],[50]) ).

tff(52,plain,
    ( ! [Z: $i,Y: $i,X: $i] : less_equal(divide(divide(X,Z),divide(Y,Z)),divide(divide(X,Y),Z))
  <=> ! [Z: $i,Y: $i,X: $i] : less_equal(divide(divide(X,Z),divide(Y,Z)),divide(divide(X,Y),Z)) ),
    inference(rewrite,[status(thm)],]) ).

tff(53,axiom,
    ! [Z: $i,Y: $i,X: $i] : less_equal(divide(divide(X,Z),divide(Y,Z)),divide(divide(X,Y),Z)),
    file('/export/starexec/sandbox/benchmark/Axioms/HEN002-0.ax',quotient_property) ).

tff(54,plain,
    ! [Z: $i,Y: $i,X: $i] : less_equal(divide(divide(X,Z),divide(Y,Z)),divide(divide(X,Y),Z)),
    inference(modus_ponens,[status(thm)],[53,52]) ).

tff(55,plain,
    ! [Z: $i,Y: $i,X: $i] : less_equal(divide(divide(X,Z),divide(Y,Z)),divide(divide(X,Y),Z)),
    inference(skolemize,[status(sab)],[54]) ).

tff(56,plain,
    ! [Z: $i,Y: $i,X: $i] : less_equal(divide(divide(X,Z),divide(Y,Z)),divide(divide(X,Y),Z)),
    inference(modus_ponens,[status(thm)],[55,51]) ).

tff(57,plain,
    ( ~ ! [Z: $i,Y: $i,X: $i] : less_equal(divide(divide(X,Z),divide(Y,Z)),divide(divide(X,Y),Z))
    | less_equal(divide(divide(a,c),divide(b,c)),divide(divide(a,b),c)) ),
    inference(quant_inst,[status(thm)],]) ).

tff(58,plain,
    less_equal(divide(divide(a,c),divide(b,c)),divide(divide(a,b),c)),
    inference(unit_resolution,[status(thm)],[57,56]) ).

tff(59,plain,
    less_equal(divide(a,c),zero),
    inference(modus_ponens,[status(thm)],[58,49]) ).

tff(60,plain,
    ( ( divide(divide(a,c),zero) = zero )
  <=> ( divide(a,c) = zero ) ),
    inference(monotonicity,[status(thm)],[45]) ).

tff(61,plain,
    ( ( divide(a,c) = zero )
  <=> ( divide(divide(a,c),zero) = zero ) ),
    inference(symmetry,[status(thm)],[60]) ).

tff(62,plain,
    ( ( divide(a,c) != zero )
  <=> ( divide(divide(a,c),zero) != zero ) ),
    inference(monotonicity,[status(thm)],[61]) ).

tff(63,plain,
    ( ~ less_equal(a,c)
  <=> ~ less_equal(a,c) ),
    inference(rewrite,[status(thm)],]) ).

tff(64,axiom,
    ~ less_equal(a,c),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',prove_a_LE_c) ).

tff(65,plain,
    ~ less_equal(a,c),
    inference(modus_ponens,[status(thm)],[64,63]) ).

tff(66,plain,
    ^ [Y: $i,X: $i] :
      refl(
        ( ( ( divide(X,Y) != zero )
          | less_equal(X,Y) )
      <=> ( ( divide(X,Y) != zero )
          | less_equal(X,Y) ) )),
    inference(bind,[status(th)],]) ).

tff(67,plain,
    ( ! [Y: $i,X: $i] :
        ( ( divide(X,Y) != zero )
        | less_equal(X,Y) )
  <=> ! [Y: $i,X: $i] :
        ( ( divide(X,Y) != zero )
        | less_equal(X,Y) ) ),
    inference(quant_intro,[status(thm)],[66]) ).

tff(68,plain,
    ( ! [Y: $i,X: $i] :
        ( ( divide(X,Y) != zero )
        | less_equal(X,Y) )
  <=> ! [Y: $i,X: $i] :
        ( ( divide(X,Y) != zero )
        | less_equal(X,Y) ) ),
    inference(rewrite,[status(thm)],]) ).

tff(69,axiom,
    ! [Y: $i,X: $i] :
      ( ( divide(X,Y) != zero )
      | less_equal(X,Y) ),
    file('/export/starexec/sandbox/benchmark/Axioms/HEN002-0.ax',quotient_less_equal2) ).

tff(70,plain,
    ! [Y: $i,X: $i] :
      ( ( divide(X,Y) != zero )
      | less_equal(X,Y) ),
    inference(modus_ponens,[status(thm)],[69,68]) ).

tff(71,plain,
    ! [Y: $i,X: $i] :
      ( ( divide(X,Y) != zero )
      | less_equal(X,Y) ),
    inference(skolemize,[status(sab)],[70]) ).

tff(72,plain,
    ! [Y: $i,X: $i] :
      ( ( divide(X,Y) != zero )
      | less_equal(X,Y) ),
    inference(modus_ponens,[status(thm)],[71,67]) ).

tff(73,plain,
    ( ( ~ ! [Y: $i,X: $i] :
            ( ( divide(X,Y) != zero )
            | less_equal(X,Y) )
      | ( divide(a,c) != zero )
      | less_equal(a,c) )
  <=> ( ~ ! [Y: $i,X: $i] :
            ( ( divide(X,Y) != zero )
            | less_equal(X,Y) )
      | ( divide(a,c) != zero )
      | less_equal(a,c) ) ),
    inference(rewrite,[status(thm)],]) ).

tff(74,plain,
    ( ~ ! [Y: $i,X: $i] :
          ( ( divide(X,Y) != zero )
          | less_equal(X,Y) )
    | ( divide(a,c) != zero )
    | less_equal(a,c) ),
    inference(quant_inst,[status(thm)],]) ).

tff(75,plain,
    ( ~ ! [Y: $i,X: $i] :
          ( ( divide(X,Y) != zero )
          | less_equal(X,Y) )
    | ( divide(a,c) != zero )
    | less_equal(a,c) ),
    inference(modus_ponens,[status(thm)],[74,73]) ).

tff(76,plain,
    divide(a,c) != zero,
    inference(unit_resolution,[status(thm)],[75,72,65]) ).

tff(77,plain,
    divide(divide(a,c),zero) != zero,
    inference(modus_ponens,[status(thm)],[76,62]) ).

tff(78,plain,
    ( ( ~ ! [Y: $i,X: $i] :
            ( ~ less_equal(X,Y)
            | ( divide(X,Y) = zero ) )
      | ~ less_equal(divide(a,c),zero)
      | ( divide(divide(a,c),zero) = zero ) )
  <=> ( ~ ! [Y: $i,X: $i] :
            ( ~ less_equal(X,Y)
            | ( divide(X,Y) = zero ) )
      | ~ less_equal(divide(a,c),zero)
      | ( divide(divide(a,c),zero) = zero ) ) ),
    inference(rewrite,[status(thm)],]) ).

tff(79,plain,
    ( ~ ! [Y: $i,X: $i] :
          ( ~ less_equal(X,Y)
          | ( divide(X,Y) = zero ) )
    | ~ less_equal(divide(a,c),zero)
    | ( divide(divide(a,c),zero) = zero ) ),
    inference(quant_inst,[status(thm)],]) ).

tff(80,plain,
    ( ~ ! [Y: $i,X: $i] :
          ( ~ less_equal(X,Y)
          | ( divide(X,Y) = zero ) )
    | ~ less_equal(divide(a,c),zero)
    | ( divide(divide(a,c),zero) = zero ) ),
    inference(modus_ponens,[status(thm)],[79,78]) ).

tff(81,plain,
    ( ~ less_equal(divide(a,c),zero)
    | ( divide(divide(a,c),zero) = zero ) ),
    inference(unit_resolution,[status(thm)],[80,10]) ).

tff(82,plain,
    ~ less_equal(divide(a,c),zero),
    inference(unit_resolution,[status(thm)],[81,77]) ).

tff(83,plain,
    $false,
    inference(unit_resolution,[status(thm)],[82,59]) ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.03/0.12  % Problem  : HEN005-4 : TPTP v8.1.0. Released v1.0.0.
% 0.03/0.13  % Command  : z3_tptp -proof -model -t:%d -file:%s
% 0.13/0.34  % Computer : n006.cluster.edu
% 0.13/0.34  % Model    : x86_64 x86_64
% 0.13/0.34  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.13/0.34  % Memory   : 8042.1875MB
% 0.13/0.34  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.13/0.34  % CPULimit : 300
% 0.13/0.34  % WCLimit  : 300
% 0.13/0.34  % DateTime : Wed Aug 31 21:41:09 EDT 2022
% 0.13/0.35  % CPUTime  : 
% 0.13/0.35  Z3tptp [4.8.9.0] (c) 2006-20**. Microsoft Corp.
% 0.13/0.35  Usage: tptp [options] [-file:]file
% 0.13/0.35    -h, -?       prints this message.
% 0.13/0.35    -smt2        print SMT-LIB2 benchmark.
% 0.13/0.35    -m, -model   generate model.
% 0.13/0.35    -p, -proof   generate proof.
% 0.13/0.35    -c, -core    generate unsat core of named formulas.
% 0.13/0.35    -st, -statistics display statistics.
% 0.13/0.35    -t:timeout   set timeout (in second).
% 0.13/0.35    -smt2status  display status in smt2 format instead of SZS.
% 0.13/0.35    -check_status check the status produced by Z3 against annotation in benchmark.
% 0.13/0.35    -<param>:<value> configuration parameter and value.
% 0.13/0.35    -o:<output-file> file to place output in.
% 0.20/0.40  % SZS status Unsatisfiable
% 0.20/0.40  % SZS output start Proof
% See solution above
%------------------------------------------------------------------------------