TSTP Solution File: ARI123_1 by Z3---4.8.9.0

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : Z3---4.8.9.0
% Problem  : ARI123_1 : TPTP v8.1.0. Released v5.0.0.
% 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  6 17:00:43 EDT 2022

% Result   : Theorem 0.21s 0.39s
% Output   : Proof 0.21s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :   16
%            Number of leaves      :   16
% Syntax   : Number of formulae    :   47 (  12 unt;   0 typ;   0 def)
%            Number of atoms       :  255 ( 228 equ)
%            Maximal formula atoms :   16 (   5 avg)
%            Number of connectives :  351 ( 147   ~; 107   |;  72   &)
%                                         (  23 <=>;   2  =>;   0  <=;   0 <~>)
%            Maximal formula depth :   17 (   9 avg)
%            Maximal term depth    :    4 (   2 avg)
%            Number of FOOLs       :    4 (   4 fml;   0 var)
%            Number arithmetic     : 1245 (   0 atm; 524 fun; 490 num; 231 var)
%            Number of types       :    1 (   0 usr;   1 ari)
%            Number of type conns  :    0 (   0   >;   0   *;   0   +;   0  <<)
%            Number of predicates  :    6 (   2 usr;   2 prp; 0-2 aty)
%            Number of functors    :    4 (   0 usr;   2 con; 0-2 aty)
%            Number of variables   :  231 (  84   !; 133   ?; 231   :)

% Comments : 
%------------------------------------------------------------------------------
tff(1,plain,
    ( ( ~ ! [X: $int,Y: $int,Z: $int,Z1: $int,Z2: $int,Z3: $int,Z4: $int] :
            ~ ( ( $sum(Z2,$product(-1,Z4)) = 0 )
              | ( $sum(Z1,$product(-1,$product(X,Y))) != 0 )
              | ( $sum(Z2,$product(-1,$product(Z,Z1))) != 0 )
              | ( $sum(Z3,$product(-1,$product(Y,Z))) != 0 )
              | ( $sum(Z4,$product(-1,$product(X,Z3))) != 0 ) )
      | $false )
  <=> ~ ! [X: $int,Y: $int,Z: $int,Z1: $int,Z2: $int,Z3: $int,Z4: $int] :
          ~ ( ( $sum(Z2,$product(-1,Z4)) = 0 )
            | ( $sum(Z1,$product(-1,$product(X,Y))) != 0 )
            | ( $sum(Z2,$product(-1,$product(Z,Z1))) != 0 )
            | ( $sum(Z3,$product(-1,$product(Y,Z))) != 0 )
            | ( $sum(Z4,$product(-1,$product(X,Z3))) != 0 ) ) ),
    inference(rewrite,[status(thm)],]) ).

tff(2,plain,
    ( ~ $true
  <=> $false ),
    inference(rewrite,[status(thm)],]) ).

tff(3,plain,
    ( ( $true
      | $false
      | $false
      | $false
      | $false )
  <=> $true ),
    inference(rewrite,[status(thm)],]) ).

tff(4,plain,
    ( ( 0 = 0 )
  <=> $true ),
    inference(rewrite,[status(thm)],]) ).

tff(5,plain,
    $sum(0,0) = 0,
    inference(rewrite,[status(thm)],]) ).

tff(6,plain,
    $product(-1,0) = 0,
    inference(rewrite,[status(thm)],]) ).

tff(7,plain,
    $product(0,0) = 0,
    inference(rewrite,[status(thm)],]) ).

tff(8,plain,
    $product(-1,$product(0,0)) = $product(-1,0),
    inference(monotonicity,[status(thm)],[7]) ).

tff(9,plain,
    $product(-1,$product(0,0)) = 0,
    inference(transitivity,[status(thm)],[8,6]) ).

tff(10,plain,
    $sum(0,$product(-1,$product(0,0))) = $sum(0,0),
    inference(monotonicity,[status(thm)],[9]) ).

tff(11,plain,
    $sum(0,$product(-1,$product(0,0))) = 0,
    inference(transitivity,[status(thm)],[10,5]) ).

tff(12,plain,
    ( ( $sum(0,$product(-1,$product(0,0))) = 0 )
  <=> ( 0 = 0 ) ),
    inference(monotonicity,[status(thm)],[11]) ).

tff(13,plain,
    ( ( $sum(0,$product(-1,$product(0,0))) = 0 )
  <=> $true ),
    inference(transitivity,[status(thm)],[12,4]) ).

tff(14,plain,
    ( ( $sum(0,$product(-1,$product(0,0))) != 0 )
  <=> ~ $true ),
    inference(monotonicity,[status(thm)],[13]) ).

tff(15,plain,
    ( ( $sum(0,$product(-1,$product(0,0))) != 0 )
  <=> $false ),
    inference(transitivity,[status(thm)],[14,2]) ).

tff(16,plain,
    $sum(0,$product(-1,0)) = $sum(0,0),
    inference(monotonicity,[status(thm)],[6]) ).

tff(17,plain,
    $sum(0,$product(-1,0)) = 0,
    inference(transitivity,[status(thm)],[16,5]) ).

tff(18,plain,
    ( ( $sum(0,$product(-1,0)) = 0 )
  <=> ( 0 = 0 ) ),
    inference(monotonicity,[status(thm)],[17]) ).

tff(19,plain,
    ( ( $sum(0,$product(-1,0)) = 0 )
  <=> $true ),
    inference(transitivity,[status(thm)],[18,4]) ).

tff(20,plain,
    ( ( ( $sum(0,$product(-1,0)) = 0 )
      | ( $sum(0,$product(-1,$product(0,0))) != 0 )
      | ( $sum(0,$product(-1,$product(0,0))) != 0 )
      | ( $sum(0,$product(-1,$product(0,0))) != 0 )
      | ( $sum(0,$product(-1,$product(0,0))) != 0 ) )
  <=> ( $true
      | $false
      | $false
      | $false
      | $false ) ),
    inference(monotonicity,[status(thm)],[19,15,15,15,15]) ).

tff(21,plain,
    ( ( ( $sum(0,$product(-1,0)) = 0 )
      | ( $sum(0,$product(-1,$product(0,0))) != 0 )
      | ( $sum(0,$product(-1,$product(0,0))) != 0 )
      | ( $sum(0,$product(-1,$product(0,0))) != 0 )
      | ( $sum(0,$product(-1,$product(0,0))) != 0 ) )
  <=> $true ),
    inference(transitivity,[status(thm)],[20,3]) ).

tff(22,plain,
    ( ~ ( ( $sum(0,$product(-1,0)) = 0 )
        | ( $sum(0,$product(-1,$product(0,0))) != 0 )
        | ( $sum(0,$product(-1,$product(0,0))) != 0 )
        | ( $sum(0,$product(-1,$product(0,0))) != 0 )
        | ( $sum(0,$product(-1,$product(0,0))) != 0 ) )
  <=> ~ $true ),
    inference(monotonicity,[status(thm)],[21]) ).

tff(23,plain,
    ( ~ ( ( $sum(0,$product(-1,0)) = 0 )
        | ( $sum(0,$product(-1,$product(0,0))) != 0 )
        | ( $sum(0,$product(-1,$product(0,0))) != 0 )
        | ( $sum(0,$product(-1,$product(0,0))) != 0 )
        | ( $sum(0,$product(-1,$product(0,0))) != 0 ) )
  <=> $false ),
    inference(transitivity,[status(thm)],[22,2]) ).

tff(24,plain,
    ( ( ~ ! [X: $int,Y: $int,Z: $int,Z1: $int,Z2: $int,Z3: $int,Z4: $int] :
            ~ ( ( $sum(Z2,$product(-1,Z4)) = 0 )
              | ( $sum(Z1,$product(-1,$product(X,Y))) != 0 )
              | ( $sum(Z2,$product(-1,$product(Z,Z1))) != 0 )
              | ( $sum(Z3,$product(-1,$product(Y,Z))) != 0 )
              | ( $sum(Z4,$product(-1,$product(X,Z3))) != 0 ) )
      | ~ ( ( $sum(0,$product(-1,0)) = 0 )
          | ( $sum(0,$product(-1,$product(0,0))) != 0 )
          | ( $sum(0,$product(-1,$product(0,0))) != 0 )
          | ( $sum(0,$product(-1,$product(0,0))) != 0 )
          | ( $sum(0,$product(-1,$product(0,0))) != 0 ) ) )
  <=> ( ~ ! [X: $int,Y: $int,Z: $int,Z1: $int,Z2: $int,Z3: $int,Z4: $int] :
            ~ ( ( $sum(Z2,$product(-1,Z4)) = 0 )
              | ( $sum(Z1,$product(-1,$product(X,Y))) != 0 )
              | ( $sum(Z2,$product(-1,$product(Z,Z1))) != 0 )
              | ( $sum(Z3,$product(-1,$product(Y,Z))) != 0 )
              | ( $sum(Z4,$product(-1,$product(X,Z3))) != 0 ) )
      | $false ) ),
    inference(monotonicity,[status(thm)],[23]) ).

tff(25,plain,
    ( ( ~ ! [X: $int,Y: $int,Z: $int,Z1: $int,Z2: $int,Z3: $int,Z4: $int] :
            ~ ( ( $sum(Z2,$product(-1,Z4)) = 0 )
              | ( $sum(Z1,$product(-1,$product(X,Y))) != 0 )
              | ( $sum(Z2,$product(-1,$product(Z,Z1))) != 0 )
              | ( $sum(Z3,$product(-1,$product(Y,Z))) != 0 )
              | ( $sum(Z4,$product(-1,$product(X,Z3))) != 0 ) )
      | ~ ( ( $sum(0,$product(-1,0)) = 0 )
          | ( $sum(0,$product(-1,$product(0,0))) != 0 )
          | ( $sum(0,$product(-1,$product(0,0))) != 0 )
          | ( $sum(0,$product(-1,$product(0,0))) != 0 )
          | ( $sum(0,$product(-1,$product(0,0))) != 0 ) ) )
  <=> ~ ! [X: $int,Y: $int,Z: $int,Z1: $int,Z2: $int,Z3: $int,Z4: $int] :
          ~ ( ( $sum(Z2,$product(-1,Z4)) = 0 )
            | ( $sum(Z1,$product(-1,$product(X,Y))) != 0 )
            | ( $sum(Z2,$product(-1,$product(Z,Z1))) != 0 )
            | ( $sum(Z3,$product(-1,$product(Y,Z))) != 0 )
            | ( $sum(Z4,$product(-1,$product(X,Z3))) != 0 ) ) ),
    inference(transitivity,[status(thm)],[24,1]) ).

tff(26,plain,
    ( ~ ! [X: $int,Y: $int,Z: $int,Z1: $int,Z2: $int,Z3: $int,Z4: $int] :
          ~ ( ( $sum(Z2,$product(-1,Z4)) = 0 )
            | ( $sum(Z1,$product(-1,$product(X,Y))) != 0 )
            | ( $sum(Z2,$product(-1,$product(Z,Z1))) != 0 )
            | ( $sum(Z3,$product(-1,$product(Y,Z))) != 0 )
            | ( $sum(Z4,$product(-1,$product(X,Z3))) != 0 ) )
    | ~ ( ( $sum(0,$product(-1,0)) = 0 )
        | ( $sum(0,$product(-1,$product(0,0))) != 0 )
        | ( $sum(0,$product(-1,$product(0,0))) != 0 )
        | ( $sum(0,$product(-1,$product(0,0))) != 0 )
        | ( $sum(0,$product(-1,$product(0,0))) != 0 ) ) ),
    inference(quant_inst,[status(thm)],]) ).

tff(27,plain,
    ~ ! [X: $int,Y: $int,Z: $int,Z1: $int,Z2: $int,Z3: $int,Z4: $int] :
        ~ ( ( $sum(Z2,$product(-1,Z4)) = 0 )
          | ( $sum(Z1,$product(-1,$product(X,Y))) != 0 )
          | ( $sum(Z2,$product(-1,$product(Z,Z1))) != 0 )
          | ( $sum(Z3,$product(-1,$product(Y,Z))) != 0 )
          | ( $sum(Z4,$product(-1,$product(X,Z3))) != 0 ) ),
    inference(modus_ponens,[status(thm)],[26,25]) ).

tff(28,plain,
    ^ [X: $int,Y: $int,Z: $int,Z1: $int,Z2: $int,Z3: $int,Z4: $int] :
      rewrite(
        ( ~ ( ~ ( ( $sum(Z1,$product(-1,$product(X,Y))) = 0 )
                & ( $sum(Z2,$product(-1,$product(Z,Z1))) = 0 )
                & ( $sum(Z3,$product(-1,$product(Y,Z))) = 0 )
                & ( $sum(Z4,$product(-1,$product(X,Z3))) = 0 ) )
            | ( $sum(Z2,$product(-1,Z4)) = 0 ) )
      <=> ~ ( ( $sum(Z2,$product(-1,Z4)) = 0 )
            | ( $sum(Z1,$product(-1,$product(X,Y))) != 0 )
            | ( $sum(Z2,$product(-1,$product(Z,Z1))) != 0 )
            | ( $sum(Z3,$product(-1,$product(Y,Z))) != 0 )
            | ( $sum(Z4,$product(-1,$product(X,Z3))) != 0 ) ) )),
    inference(bind,[status(th)],]) ).

tff(29,plain,
    ( ! [X: $int,Y: $int,Z: $int,Z1: $int,Z2: $int,Z3: $int,Z4: $int] :
        ~ ( ~ ( ( $sum(Z1,$product(-1,$product(X,Y))) = 0 )
              & ( $sum(Z2,$product(-1,$product(Z,Z1))) = 0 )
              & ( $sum(Z3,$product(-1,$product(Y,Z))) = 0 )
              & ( $sum(Z4,$product(-1,$product(X,Z3))) = 0 ) )
          | ( $sum(Z2,$product(-1,Z4)) = 0 ) )
  <=> ! [X: $int,Y: $int,Z: $int,Z1: $int,Z2: $int,Z3: $int,Z4: $int] :
        ~ ( ( $sum(Z2,$product(-1,Z4)) = 0 )
          | ( $sum(Z1,$product(-1,$product(X,Y))) != 0 )
          | ( $sum(Z2,$product(-1,$product(Z,Z1))) != 0 )
          | ( $sum(Z3,$product(-1,$product(Y,Z))) != 0 )
          | ( $sum(Z4,$product(-1,$product(X,Z3))) != 0 ) ) ),
    inference(quant_intro,[status(thm)],[28]) ).

tff(30,plain,
    ( ~ ? [X: $int,Y: $int,Z: $int,Z1: $int,Z2: $int,Z3: $int,Z4: $int] :
          ( ~ ( ( $sum(Z1,$product(-1,$product(X,Y))) = 0 )
              & ( $sum(Z2,$product(-1,$product(Z,Z1))) = 0 )
              & ( $sum(Z3,$product(-1,$product(Y,Z))) = 0 )
              & ( $sum(Z4,$product(-1,$product(X,Z3))) = 0 ) )
          | ( $sum(Z2,$product(-1,Z4)) = 0 ) )
  <=> ~ ? [X: $int,Y: $int,Z: $int,Z1: $int,Z2: $int,Z3: $int,Z4: $int] :
          ( ~ ( ( $sum(Z1,$product(-1,$product(X,Y))) = 0 )
              & ( $sum(Z2,$product(-1,$product(Z,Z1))) = 0 )
              & ( $sum(Z3,$product(-1,$product(Y,Z))) = 0 )
              & ( $sum(Z4,$product(-1,$product(X,Z3))) = 0 ) )
          | ( $sum(Z2,$product(-1,Z4)) = 0 ) ) ),
    inference(rewrite,[status(thm)],]) ).

tff(31,plain,
    ( ~ ? [X: $int,Y: $int,Z: $int,Z1: $int,Z2: $int,Z3: $int,Z4: $int] :
          ( ~ ( ( $sum($product(Y,X),$product(-1,Z1)) = 0 )
              & ( $sum($product(Z1,Z),$product(-1,Z2)) = 0 )
              & ( $sum($product(Z,Y),$product(-1,Z3)) = 0 )
              & ( $sum($product(Z3,X),$product(-1,Z4)) = 0 ) )
          | ( $sum(Z2,$product(-1,Z4)) = 0 ) )
  <=> ~ ? [X: $int,Y: $int,Z: $int,Z1: $int,Z2: $int,Z3: $int,Z4: $int] :
          ( ~ ( ( $sum(Z1,$product(-1,$product(X,Y))) = 0 )
              & ( $sum(Z2,$product(-1,$product(Z,Z1))) = 0 )
              & ( $sum(Z3,$product(-1,$product(Y,Z))) = 0 )
              & ( $sum(Z4,$product(-1,$product(X,Z3))) = 0 ) )
          | ( $sum(Z2,$product(-1,Z4)) = 0 ) ) ),
    inference(rewrite,[status(thm)],]) ).

tff(32,plain,
    ( ~ ? [X: $int,Y: $int,Z: $int,Z1: $int,Z2: $int,Z3: $int,Z4: $int] :
          ( ~ ( ( $product(Y,X) = Z1 )
              & ( $product(Z1,Z) = Z2 )
              & ( $product(Z,Y) = Z3 )
              & ( $product(Z3,X) = Z4 ) )
          | ( Z2 = Z4 ) )
  <=> ~ ? [X: $int,Y: $int,Z: $int,Z1: $int,Z2: $int,Z3: $int,Z4: $int] :
          ( ~ ( ( $sum($product(Y,X),$product(-1,Z1)) = 0 )
              & ( $sum($product(Z1,Z),$product(-1,Z2)) = 0 )
              & ( $sum($product(Z,Y),$product(-1,Z3)) = 0 )
              & ( $sum($product(Z3,X),$product(-1,Z4)) = 0 ) )
          | ( $sum(Z2,$product(-1,Z4)) = 0 ) ) ),
    inference(rewrite,[status(thm)],]) ).

tff(33,plain,
    ( ~ ? [X: $int,Y: $int,Z: $int,Z1: $int,Z2: $int,Z3: $int,Z4: $int] :
          ( ~ ( ( $product(Y,X) = Z1 )
              & ( $product(Z1,Z) = Z2 )
              & ( $product(Z,Y) = Z3 )
              & ( $product(Z3,X) = Z4 ) )
          | ( Z2 = Z4 ) )
  <=> ~ ? [X: $int,Y: $int,Z: $int,Z1: $int,Z2: $int,Z3: $int,Z4: $int] :
          ( ~ ( ( $product(Y,X) = Z1 )
              & ( $product(Z1,Z) = Z2 )
              & ( $product(Z,Y) = Z3 )
              & ( $product(Z3,X) = Z4 ) )
          | ( Z2 = Z4 ) ) ),
    inference(rewrite,[status(thm)],]) ).

tff(34,plain,
    ( ~ ? [X: $int,Y: $int,Z: $int,Z1: $int,Z2: $int,Z3: $int,Z4: $int] :
          ( ( ( $product(X,Y) = Z1 )
            & ( $product(Z1,Z) = Z2 )
            & ( $product(Y,Z) = Z3 )
            & ( $product(X,Z3) = Z4 ) )
         => ( Z2 = Z4 ) )
  <=> ~ ? [X: $int,Y: $int,Z: $int,Z1: $int,Z2: $int,Z3: $int,Z4: $int] :
          ( ~ ( ( $product(Y,X) = Z1 )
              & ( $product(Z1,Z) = Z2 )
              & ( $product(Z,Y) = Z3 )
              & ( $product(Z3,X) = Z4 ) )
          | ( Z2 = Z4 ) ) ),
    inference(rewrite,[status(thm)],]) ).

tff(35,axiom,
    ~ ? [X: $int,Y: $int,Z: $int,Z1: $int,Z2: $int,Z3: $int,Z4: $int] :
        ( ( ( $product(X,Y) = Z1 )
          & ( $product(Z1,Z) = Z2 )
          & ( $product(Y,Z) = Z3 )
          & ( $product(X,Z3) = Z4 ) )
       => ( Z2 = Z4 ) ),
    file('/export/starexec/sandbox2/benchmark/theBenchmark.p',associative_product_exists) ).

tff(36,plain,
    ~ ? [X: $int,Y: $int,Z: $int,Z1: $int,Z2: $int,Z3: $int,Z4: $int] :
        ( ~ ( ( $product(Y,X) = Z1 )
            & ( $product(Z1,Z) = Z2 )
            & ( $product(Z,Y) = Z3 )
            & ( $product(Z3,X) = Z4 ) )
        | ( Z2 = Z4 ) ),
    inference(modus_ponens,[status(thm)],[35,34]) ).

tff(37,plain,
    ~ ? [X: $int,Y: $int,Z: $int,Z1: $int,Z2: $int,Z3: $int,Z4: $int] :
        ( ~ ( ( $product(Y,X) = Z1 )
            & ( $product(Z1,Z) = Z2 )
            & ( $product(Z,Y) = Z3 )
            & ( $product(Z3,X) = Z4 ) )
        | ( Z2 = Z4 ) ),
    inference(modus_ponens,[status(thm)],[36,33]) ).

tff(38,plain,
    ~ ? [X: $int,Y: $int,Z: $int,Z1: $int,Z2: $int,Z3: $int,Z4: $int] :
        ( ~ ( ( $product(Y,X) = Z1 )
            & ( $product(Z1,Z) = Z2 )
            & ( $product(Z,Y) = Z3 )
            & ( $product(Z3,X) = Z4 ) )
        | ( Z2 = Z4 ) ),
    inference(modus_ponens,[status(thm)],[37,33]) ).

tff(39,plain,
    ~ ? [X: $int,Y: $int,Z: $int,Z1: $int,Z2: $int,Z3: $int,Z4: $int] :
        ( ~ ( ( $product(Y,X) = Z1 )
            & ( $product(Z1,Z) = Z2 )
            & ( $product(Z,Y) = Z3 )
            & ( $product(Z3,X) = Z4 ) )
        | ( Z2 = Z4 ) ),
    inference(modus_ponens,[status(thm)],[38,33]) ).

tff(40,plain,
    ~ ? [X: $int,Y: $int,Z: $int,Z1: $int,Z2: $int,Z3: $int,Z4: $int] :
        ( ~ ( ( $sum($product(Y,X),$product(-1,Z1)) = 0 )
            & ( $sum($product(Z1,Z),$product(-1,Z2)) = 0 )
            & ( $sum($product(Z,Y),$product(-1,Z3)) = 0 )
            & ( $sum($product(Z3,X),$product(-1,Z4)) = 0 ) )
        | ( $sum(Z2,$product(-1,Z4)) = 0 ) ),
    inference(modus_ponens,[status(thm)],[39,32]) ).

tff(41,plain,
    ~ ? [X: $int,Y: $int,Z: $int,Z1: $int,Z2: $int,Z3: $int,Z4: $int] :
        ( ~ ( ( $sum(Z1,$product(-1,$product(X,Y))) = 0 )
            & ( $sum(Z2,$product(-1,$product(Z,Z1))) = 0 )
            & ( $sum(Z3,$product(-1,$product(Y,Z))) = 0 )
            & ( $sum(Z4,$product(-1,$product(X,Z3))) = 0 ) )
        | ( $sum(Z2,$product(-1,Z4)) = 0 ) ),
    inference(modus_ponens,[status(thm)],[40,31]) ).

tff(42,plain,
    ~ ? [X: $int,Y: $int,Z: $int,Z1: $int,Z2: $int,Z3: $int,Z4: $int] :
        ( ~ ( ( $sum(Z1,$product(-1,$product(X,Y))) = 0 )
            & ( $sum(Z2,$product(-1,$product(Z,Z1))) = 0 )
            & ( $sum(Z3,$product(-1,$product(Y,Z))) = 0 )
            & ( $sum(Z4,$product(-1,$product(X,Z3))) = 0 ) )
        | ( $sum(Z2,$product(-1,Z4)) = 0 ) ),
    inference(modus_ponens,[status(thm)],[41,30]) ).

tff(43,plain,
    ~ ? [X: $int,Y: $int,Z: $int,Z1: $int,Z2: $int,Z3: $int,Z4: $int] :
        ( ~ ( ( $sum(Z1,$product(-1,$product(X,Y))) = 0 )
            & ( $sum(Z2,$product(-1,$product(Z,Z1))) = 0 )
            & ( $sum(Z3,$product(-1,$product(Y,Z))) = 0 )
            & ( $sum(Z4,$product(-1,$product(X,Z3))) = 0 ) )
        | ( $sum(Z2,$product(-1,Z4)) = 0 ) ),
    inference(modus_ponens,[status(thm)],[42,30]) ).

tff(44,plain,
    ^ [X: $int,Y: $int,Z: $int,Z1: $int,Z2: $int,Z3: $int,Z4: $int] :
      refl(
        $oeq(
          ~ ( ~ ( ( $sum(Z1,$product(-1,$product(X,Y))) = 0 )
                & ( $sum(Z2,$product(-1,$product(Z,Z1))) = 0 )
                & ( $sum(Z3,$product(-1,$product(Y,Z))) = 0 )
                & ( $sum(Z4,$product(-1,$product(X,Z3))) = 0 ) )
            | ( $sum(Z2,$product(-1,Z4)) = 0 ) ),
          ~ ( ~ ( ( $sum(Z1,$product(-1,$product(X,Y))) = 0 )
                & ( $sum(Z2,$product(-1,$product(Z,Z1))) = 0 )
                & ( $sum(Z3,$product(-1,$product(Y,Z))) = 0 )
                & ( $sum(Z4,$product(-1,$product(X,Z3))) = 0 ) )
            | ( $sum(Z2,$product(-1,Z4)) = 0 ) ))),
    inference(bind,[status(th)],]) ).

tff(45,plain,
    ! [X: $int,Y: $int,Z: $int,Z1: $int,Z2: $int,Z3: $int,Z4: $int] :
      ~ ( ~ ( ( $sum(Z1,$product(-1,$product(X,Y))) = 0 )
            & ( $sum(Z2,$product(-1,$product(Z,Z1))) = 0 )
            & ( $sum(Z3,$product(-1,$product(Y,Z))) = 0 )
            & ( $sum(Z4,$product(-1,$product(X,Z3))) = 0 ) )
        | ( $sum(Z2,$product(-1,Z4)) = 0 ) ),
    inference(nnf-neg,[status(sab)],[43,44]) ).

tff(46,plain,
    ! [X: $int,Y: $int,Z: $int,Z1: $int,Z2: $int,Z3: $int,Z4: $int] :
      ~ ( ( $sum(Z2,$product(-1,Z4)) = 0 )
        | ( $sum(Z1,$product(-1,$product(X,Y))) != 0 )
        | ( $sum(Z2,$product(-1,$product(Z,Z1))) != 0 )
        | ( $sum(Z3,$product(-1,$product(Y,Z))) != 0 )
        | ( $sum(Z4,$product(-1,$product(X,Z3))) != 0 ) ),
    inference(modus_ponens,[status(thm)],[45,29]) ).

tff(47,plain,
    $false,
    inference(unit_resolution,[status(thm)],[46,27]) ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.03/0.12  % Problem  : ARI123_1 : TPTP v8.1.0. Released v5.0.0.
% 0.03/0.13  % Command  : z3_tptp -proof -model -t:%d -file:%s
% 0.13/0.34  % Computer : n027.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 : Mon Aug 29 22:23:15 EDT 2022
% 0.13/0.34  % CPUTime  : 
% 0.13/0.34  Z3tptp [4.8.9.0] (c) 2006-20**. Microsoft Corp.
% 0.13/0.34  Usage: tptp [options] [-file:]file
% 0.13/0.34    -h, -?       prints this message.
% 0.13/0.34    -smt2        print SMT-LIB2 benchmark.
% 0.13/0.34    -m, -model   generate model.
% 0.13/0.34    -p, -proof   generate proof.
% 0.13/0.34    -c, -core    generate unsat core of named formulas.
% 0.13/0.34    -st, -statistics display statistics.
% 0.13/0.34    -t:timeout   set timeout (in second).
% 0.13/0.34    -smt2status  display status in smt2 format instead of SZS.
% 0.13/0.34    -check_status check the status produced by Z3 against annotation in benchmark.
% 0.13/0.34    -<param>:<value> configuration parameter and value.
% 0.13/0.34    -o:<output-file> file to place output in.
% 0.21/0.39  % SZS status Theorem
% 0.21/0.39  % SZS output start Proof
% See solution above
%------------------------------------------------------------------------------