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Z3---4.15.1.UNS-Prf.s

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%------------------------------------------------------------------------------
% File     : Z3---4.15.1
% Problem  : GRP003-2 : TPTP v9.0.0. Released v1.0.0.
% Transfm  : none
% Format   : tptp
% Command  : run_E %s %d THM

% Computer : n003.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 : Sat Jun 21 05:06:48 AM UTC 2025

% Result   : Unsatisfiable 2.84s 3.04s
% Output   : Proof 2.84s
% Verified : 
% SZS Type : Refutation
%            Derivation depth      :    8
%            Number of leaves      :   50
% Syntax   : Number of formulae    :  115 (  37 unt;   0 typ;   0 def)
%            Number of atoms       :  685 (   0 equ)
%            Maximal formula atoms :   16 (   5 avg)
%            Number of connectives : 1047 ( 500   ~; 490   |;   0   &)
%                                         (  57 <=>;   0  =>;   0  <=;   0 <~>)
%            Maximal formula depth :   14 (   7 avg)
%            Maximal term depth    :    3 (   1 avg)
%            Number of FOOLs       :   23 (  23 fml;   0 var)
%            Number of types       :    2 (   0 usr)
%            Number of type conns  :    0 (   0   >;   0   *;   0   +;   0  <<)
%            Number of predicates  :    7 (   6 usr;   1 prp; 0-3 aty)
%            Number of functors    :    4 (   4 usr;   2 con; 0-2 aty)
%            Number of variables   :  536 ( 492   !;   0   ?; 536   :)

% Comments : 
%------------------------------------------------------------------------------
tff(product_type,type,
    product: ( $i * $i * $i ) > $o ).

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

tff(multiply_type,type,
    multiply: ( $i * $i ) > $i ).

tff(identity_type,type,
    identity: $i ).

tff(inverse_type,type,
    inverse: $i > $i ).

tff(equalish_type,type,
    equalish: ( $i * $i ) > $o ).

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

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

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

tff(4,axiom,
    ! [X: $i] : product(inverse(X),X,identity),
    file('/export/starexec/sandbox/benchmark/Axioms/GRP005-0.ax',left_inverse) ).

tff(5,plain,
    ! [X: $i] : product(inverse(X),X,identity),
    inference(modus_ponens,[status(thm)],[4,3]) ).

tff(6,plain,
    ! [X: $i] : product(inverse(X),X,identity),
    inference(skolemize,[status(sab)],[5]) ).

tff(7,plain,
    ! [X: $i] : product(inverse(X),X,identity),
    inference(modus_ponens,[status(thm)],[6,2]) ).

tff(8,plain,
    ( ~ ! [X: $i] : product(inverse(X),X,identity)
    | product(inverse(inverse(a)),inverse(a),identity) ),
    inference(quant_inst,[status(thm)],[]) ).

tff(9,plain,
    product(inverse(inverse(a)),inverse(a),identity),
    inference(unit_resolution,[status(thm)],[8,7]) ).

tff(10,plain,
    ^ [Y: $i,X: $i] :
      refl(( product(X,Y,multiply(X,Y))
      <=> product(X,Y,multiply(X,Y)) )),
    inference(bind,[status(th)],[]) ).

tff(11,plain,
    ( ! [Y: $i,X: $i] : product(X,Y,multiply(X,Y))
  <=> ! [Y: $i,X: $i] : product(X,Y,multiply(X,Y)) ),
    inference(quant_intro,[status(thm)],[10]) ).

tff(12,plain,
    ( ! [Y: $i,X: $i] : product(X,Y,multiply(X,Y))
  <=> ! [Y: $i,X: $i] : product(X,Y,multiply(X,Y)) ),
    inference(rewrite,[status(thm)],[]) ).

tff(13,axiom,
    ! [Y: $i,X: $i] : product(X,Y,multiply(X,Y)),
    file('/export/starexec/sandbox/benchmark/Axioms/GRP005-0.ax',total_function1) ).

tff(14,plain,
    ! [Y: $i,X: $i] : product(X,Y,multiply(X,Y)),
    inference(modus_ponens,[status(thm)],[13,12]) ).

tff(15,plain,
    ! [Y: $i,X: $i] : product(X,Y,multiply(X,Y)),
    inference(skolemize,[status(sab)],[14]) ).

tff(16,plain,
    ! [Y: $i,X: $i] : product(X,Y,multiply(X,Y)),
    inference(modus_ponens,[status(thm)],[15,11]) ).

tff(17,plain,
    ( ~ ! [Y: $i,X: $i] : product(X,Y,multiply(X,Y))
    | product(a,identity,multiply(a,identity)) ),
    inference(quant_inst,[status(thm)],[]) ).

tff(18,plain,
    product(a,identity,multiply(a,identity)),
    inference(unit_resolution,[status(thm)],[17,16]) ).

tff(19,plain,
    ( ~ ! [Y: $i,X: $i] : product(X,Y,multiply(X,Y))
    | product(identity,identity,multiply(identity,identity)) ),
    inference(quant_inst,[status(thm)],[]) ).

tff(20,plain,
    product(identity,identity,multiply(identity,identity)),
    inference(unit_resolution,[status(thm)],[19,16]) ).

tff(21,plain,
    ( ~ ! [X: $i] : product(inverse(X),X,identity)
    | product(inverse(a),a,identity) ),
    inference(quant_inst,[status(thm)],[]) ).

tff(22,plain,
    product(inverse(a),a,identity),
    inference(unit_resolution,[status(thm)],[21,7]) ).

tff(23,plain,
    ^ [W: $i,V: $i,Z: $i,Y: $i,U: $i,X: $i] :
      refl(( ( product(X,V,W)
          | ~ product(U,Z,W)
          | ~ product(Y,Z,V)
          | ~ product(X,Y,U) )
      <=> ( product(X,V,W)
          | ~ product(U,Z,W)
          | ~ product(Y,Z,V)
          | ~ product(X,Y,U) ) )),
    inference(bind,[status(th)],[]) ).

tff(24,plain,
    ( ! [W: $i,V: $i,Z: $i,Y: $i,U: $i,X: $i] :
        ( product(X,V,W)
        | ~ product(U,Z,W)
        | ~ product(Y,Z,V)
        | ~ product(X,Y,U) )
  <=> ! [W: $i,V: $i,Z: $i,Y: $i,U: $i,X: $i] :
        ( product(X,V,W)
        | ~ product(U,Z,W)
        | ~ product(Y,Z,V)
        | ~ product(X,Y,U) ) ),
    inference(quant_intro,[status(thm)],[23]) ).

tff(25,plain,
    ( ! [W: $i,V: $i,Z: $i,Y: $i,U: $i,X: $i] :
        ( product(X,V,W)
        | ~ product(U,Z,W)
        | ~ product(Y,Z,V)
        | ~ product(X,Y,U) )
  <=> ! [W: $i,V: $i,Z: $i,Y: $i,U: $i,X: $i] :
        ( product(X,V,W)
        | ~ product(U,Z,W)
        | ~ product(Y,Z,V)
        | ~ product(X,Y,U) ) ),
    inference(rewrite,[status(thm)],[]) ).

tff(26,plain,
    ^ [W: $i,V: $i,Z: $i,Y: $i,U: $i,X: $i] :
      trans(monotonicity(rewrite(( ( ~ product(X,Y,U)
              | ~ product(Y,Z,V)
              | ~ product(U,Z,W) )
          <=> ( ~ product(U,Z,W)
              | ~ product(Y,Z,V)
              | ~ product(X,Y,U) ) )),
          ( ( ~ product(X,Y,U)
            | ~ product(Y,Z,V)
            | ~ product(U,Z,W)
            | product(X,V,W) )
        <=> ( ~ product(U,Z,W)
            | ~ product(Y,Z,V)
            | ~ product(X,Y,U)
            | product(X,V,W) ) )),
        rewrite(( ( ~ product(U,Z,W)
            | ~ product(Y,Z,V)
            | ~ product(X,Y,U)
            | product(X,V,W) )
        <=> ( product(X,V,W)
            | ~ product(U,Z,W)
            | ~ product(Y,Z,V)
            | ~ product(X,Y,U) ) )),
        ( ( ~ product(X,Y,U)
          | ~ product(Y,Z,V)
          | ~ product(U,Z,W)
          | product(X,V,W) )
      <=> ( product(X,V,W)
          | ~ product(U,Z,W)
          | ~ product(Y,Z,V)
          | ~ product(X,Y,U) ) )),
    inference(bind,[status(th)],[]) ).

tff(27,plain,
    ( ! [W: $i,V: $i,Z: $i,Y: $i,U: $i,X: $i] :
        ( ~ product(X,Y,U)
        | ~ product(Y,Z,V)
        | ~ product(U,Z,W)
        | product(X,V,W) )
  <=> ! [W: $i,V: $i,Z: $i,Y: $i,U: $i,X: $i] :
        ( product(X,V,W)
        | ~ product(U,Z,W)
        | ~ product(Y,Z,V)
        | ~ product(X,Y,U) ) ),
    inference(quant_intro,[status(thm)],[26]) ).

tff(28,axiom,
    ! [W: $i,V: $i,Z: $i,Y: $i,U: $i,X: $i] :
      ( ~ product(X,Y,U)
      | ~ product(Y,Z,V)
      | ~ product(U,Z,W)
      | product(X,V,W) ),
    file('/export/starexec/sandbox/benchmark/Axioms/GRP005-0.ax',associativity1) ).

tff(29,plain,
    ! [W: $i,V: $i,Z: $i,Y: $i,U: $i,X: $i] :
      ( product(X,V,W)
      | ~ product(U,Z,W)
      | ~ product(Y,Z,V)
      | ~ product(X,Y,U) ),
    inference(modus_ponens,[status(thm)],[28,27]) ).

tff(30,plain,
    ! [W: $i,V: $i,Z: $i,Y: $i,U: $i,X: $i] :
      ( product(X,V,W)
      | ~ product(U,Z,W)
      | ~ product(Y,Z,V)
      | ~ product(X,Y,U) ),
    inference(modus_ponens,[status(thm)],[29,25]) ).

tff(31,plain,
    ! [W: $i,V: $i,Z: $i,Y: $i,U: $i,X: $i] :
      ( product(X,V,W)
      | ~ product(U,Z,W)
      | ~ product(Y,Z,V)
      | ~ product(X,Y,U) ),
    inference(skolemize,[status(sab)],[30]) ).

tff(32,plain,
    ! [W: $i,V: $i,Z: $i,Y: $i,U: $i,X: $i] :
      ( product(X,V,W)
      | ~ product(U,Z,W)
      | ~ product(Y,Z,V)
      | ~ product(X,Y,U) ),
    inference(modus_ponens,[status(thm)],[31,24]) ).

tff(33,plain,
    ( ( ~ ! [W: $i,V: $i,Z: $i,Y: $i,U: $i,X: $i] :
            ( product(X,V,W)
            | ~ product(U,Z,W)
            | ~ product(Y,Z,V)
            | ~ product(X,Y,U) )
      | ~ product(identity,identity,multiply(identity,identity))
      | product(inverse(a),multiply(a,identity),multiply(identity,identity))
      | ~ product(inverse(a),a,identity)
      | ~ product(a,identity,multiply(a,identity)) )
  <=> ( ~ ! [W: $i,V: $i,Z: $i,Y: $i,U: $i,X: $i] :
            ( product(X,V,W)
            | ~ product(U,Z,W)
            | ~ product(Y,Z,V)
            | ~ product(X,Y,U) )
      | ~ product(identity,identity,multiply(identity,identity))
      | product(inverse(a),multiply(a,identity),multiply(identity,identity))
      | ~ product(inverse(a),a,identity)
      | ~ product(a,identity,multiply(a,identity)) ) ),
    inference(rewrite,[status(thm)],[]) ).

tff(34,plain,
    ( ( product(inverse(a),multiply(a,identity),multiply(identity,identity))
      | ~ product(identity,identity,multiply(identity,identity))
      | ~ product(a,identity,multiply(a,identity))
      | ~ product(inverse(a),a,identity) )
  <=> ( ~ product(identity,identity,multiply(identity,identity))
      | product(inverse(a),multiply(a,identity),multiply(identity,identity))
      | ~ product(inverse(a),a,identity)
      | ~ product(a,identity,multiply(a,identity)) ) ),
    inference(rewrite,[status(thm)],[]) ).

tff(35,plain,
    ( ( ~ ! [W: $i,V: $i,Z: $i,Y: $i,U: $i,X: $i] :
            ( product(X,V,W)
            | ~ product(U,Z,W)
            | ~ product(Y,Z,V)
            | ~ product(X,Y,U) )
      | product(inverse(a),multiply(a,identity),multiply(identity,identity))
      | ~ product(identity,identity,multiply(identity,identity))
      | ~ product(a,identity,multiply(a,identity))
      | ~ product(inverse(a),a,identity) )
  <=> ( ~ ! [W: $i,V: $i,Z: $i,Y: $i,U: $i,X: $i] :
            ( product(X,V,W)
            | ~ product(U,Z,W)
            | ~ product(Y,Z,V)
            | ~ product(X,Y,U) )
      | ~ product(identity,identity,multiply(identity,identity))
      | product(inverse(a),multiply(a,identity),multiply(identity,identity))
      | ~ product(inverse(a),a,identity)
      | ~ product(a,identity,multiply(a,identity)) ) ),
    inference(monotonicity,[status(thm)],[34]) ).

tff(36,plain,
    ( ( ~ ! [W: $i,V: $i,Z: $i,Y: $i,U: $i,X: $i] :
            ( product(X,V,W)
            | ~ product(U,Z,W)
            | ~ product(Y,Z,V)
            | ~ product(X,Y,U) )
      | product(inverse(a),multiply(a,identity),multiply(identity,identity))
      | ~ product(identity,identity,multiply(identity,identity))
      | ~ product(a,identity,multiply(a,identity))
      | ~ product(inverse(a),a,identity) )
  <=> ( ~ ! [W: $i,V: $i,Z: $i,Y: $i,U: $i,X: $i] :
            ( product(X,V,W)
            | ~ product(U,Z,W)
            | ~ product(Y,Z,V)
            | ~ product(X,Y,U) )
      | ~ product(identity,identity,multiply(identity,identity))
      | product(inverse(a),multiply(a,identity),multiply(identity,identity))
      | ~ product(inverse(a),a,identity)
      | ~ product(a,identity,multiply(a,identity)) ) ),
    inference(transitivity,[status(thm)],[35,33]) ).

tff(37,plain,
    ( ~ ! [W: $i,V: $i,Z: $i,Y: $i,U: $i,X: $i] :
          ( product(X,V,W)
          | ~ product(U,Z,W)
          | ~ product(Y,Z,V)
          | ~ product(X,Y,U) )
    | product(inverse(a),multiply(a,identity),multiply(identity,identity))
    | ~ product(identity,identity,multiply(identity,identity))
    | ~ product(a,identity,multiply(a,identity))
    | ~ product(inverse(a),a,identity) ),
    inference(quant_inst,[status(thm)],[]) ).

tff(38,plain,
    ( ~ ! [W: $i,V: $i,Z: $i,Y: $i,U: $i,X: $i] :
          ( product(X,V,W)
          | ~ product(U,Z,W)
          | ~ product(Y,Z,V)
          | ~ product(X,Y,U) )
    | ~ product(identity,identity,multiply(identity,identity))
    | product(inverse(a),multiply(a,identity),multiply(identity,identity))
    | ~ product(inverse(a),a,identity)
    | ~ product(a,identity,multiply(a,identity)) ),
    inference(modus_ponens,[status(thm)],[37,36]) ).

tff(39,plain,
    product(inverse(a),multiply(a,identity),multiply(identity,identity)),
    inference(unit_resolution,[status(thm)],[38,32,22,20,18]) ).

tff(40,plain,
    ^ [X: $i] :
      refl(( product(identity,X,X)
      <=> product(identity,X,X) )),
    inference(bind,[status(th)],[]) ).

tff(41,plain,
    ( ! [X: $i] : product(identity,X,X)
  <=> ! [X: $i] : product(identity,X,X) ),
    inference(quant_intro,[status(thm)],[40]) ).

tff(42,plain,
    ( ! [X: $i] : product(identity,X,X)
  <=> ! [X: $i] : product(identity,X,X) ),
    inference(rewrite,[status(thm)],[]) ).

tff(43,axiom,
    ! [X: $i] : product(identity,X,X),
    file('/export/starexec/sandbox/benchmark/Axioms/GRP005-0.ax',left_identity) ).

tff(44,plain,
    ! [X: $i] : product(identity,X,X),
    inference(modus_ponens,[status(thm)],[43,42]) ).

tff(45,plain,
    ! [X: $i] : product(identity,X,X),
    inference(skolemize,[status(sab)],[44]) ).

tff(46,plain,
    ! [X: $i] : product(identity,X,X),
    inference(modus_ponens,[status(thm)],[45,41]) ).

tff(47,plain,
    ( ~ ! [X: $i] : product(identity,X,X)
    | product(identity,a,a) ),
    inference(quant_inst,[status(thm)],[]) ).

tff(48,plain,
    product(identity,a,a),
    inference(unit_resolution,[status(thm)],[47,46]) ).

tff(49,plain,
    ( ~ product(a,identity,a)
  <=> ~ product(a,identity,a) ),
    inference(rewrite,[status(thm)],[]) ).

tff(50,axiom,
    ~ product(a,identity,a),
    file('/export/starexec/sandbox/benchmark/theBenchmark.p',prove_right_identity) ).

tff(51,plain,
    ~ product(a,identity,a),
    inference(modus_ponens,[status(thm)],[50,49]) ).

tff(52,plain,
    ^ [W: $i,V: $i,Z: $i,Y: $i,U: $i,X: $i] :
      refl(( ( product(U,Z,W)
          | ~ product(Y,Z,V)
          | ~ product(X,Y,U)
          | ~ product(X,V,W) )
      <=> ( product(U,Z,W)
          | ~ product(Y,Z,V)
          | ~ product(X,Y,U)
          | ~ product(X,V,W) ) )),
    inference(bind,[status(th)],[]) ).

tff(53,plain,
    ( ! [W: $i,V: $i,Z: $i,Y: $i,U: $i,X: $i] :
        ( product(U,Z,W)
        | ~ product(Y,Z,V)
        | ~ product(X,Y,U)
        | ~ product(X,V,W) )
  <=> ! [W: $i,V: $i,Z: $i,Y: $i,U: $i,X: $i] :
        ( product(U,Z,W)
        | ~ product(Y,Z,V)
        | ~ product(X,Y,U)
        | ~ product(X,V,W) ) ),
    inference(quant_intro,[status(thm)],[52]) ).

tff(54,plain,
    ( ! [W: $i,V: $i,Z: $i,Y: $i,U: $i,X: $i] :
        ( product(U,Z,W)
        | ~ product(Y,Z,V)
        | ~ product(X,Y,U)
        | ~ product(X,V,W) )
  <=> ! [W: $i,V: $i,Z: $i,Y: $i,U: $i,X: $i] :
        ( product(U,Z,W)
        | ~ product(Y,Z,V)
        | ~ product(X,Y,U)
        | ~ product(X,V,W) ) ),
    inference(rewrite,[status(thm)],[]) ).

tff(55,plain,
    ^ [W: $i,V: $i,Z: $i,Y: $i,U: $i,X: $i] :
      trans(monotonicity(rewrite(( ( ~ product(X,Y,U)
              | ~ product(Y,Z,V)
              | ~ product(X,V,W) )
          <=> ( ~ product(Y,Z,V)
              | ~ product(X,Y,U)
              | ~ product(X,V,W) ) )),
          ( ( ~ product(X,Y,U)
            | ~ product(Y,Z,V)
            | ~ product(X,V,W)
            | product(U,Z,W) )
        <=> ( ~ product(Y,Z,V)
            | ~ product(X,Y,U)
            | ~ product(X,V,W)
            | product(U,Z,W) ) )),
        rewrite(( ( ~ product(Y,Z,V)
            | ~ product(X,Y,U)
            | ~ product(X,V,W)
            | product(U,Z,W) )
        <=> ( product(U,Z,W)
            | ~ product(Y,Z,V)
            | ~ product(X,Y,U)
            | ~ product(X,V,W) ) )),
        ( ( ~ product(X,Y,U)
          | ~ product(Y,Z,V)
          | ~ product(X,V,W)
          | product(U,Z,W) )
      <=> ( product(U,Z,W)
          | ~ product(Y,Z,V)
          | ~ product(X,Y,U)
          | ~ product(X,V,W) ) )),
    inference(bind,[status(th)],[]) ).

tff(56,plain,
    ( ! [W: $i,V: $i,Z: $i,Y: $i,U: $i,X: $i] :
        ( ~ product(X,Y,U)
        | ~ product(Y,Z,V)
        | ~ product(X,V,W)
        | product(U,Z,W) )
  <=> ! [W: $i,V: $i,Z: $i,Y: $i,U: $i,X: $i] :
        ( product(U,Z,W)
        | ~ product(Y,Z,V)
        | ~ product(X,Y,U)
        | ~ product(X,V,W) ) ),
    inference(quant_intro,[status(thm)],[55]) ).

tff(57,axiom,
    ! [W: $i,V: $i,Z: $i,Y: $i,U: $i,X: $i] :
      ( ~ product(X,Y,U)
      | ~ product(Y,Z,V)
      | ~ product(X,V,W)
      | product(U,Z,W) ),
    file('/export/starexec/sandbox/benchmark/Axioms/GRP005-0.ax',associativity2) ).

tff(58,plain,
    ! [W: $i,V: $i,Z: $i,Y: $i,U: $i,X: $i] :
      ( product(U,Z,W)
      | ~ product(Y,Z,V)
      | ~ product(X,Y,U)
      | ~ product(X,V,W) ),
    inference(modus_ponens,[status(thm)],[57,56]) ).

tff(59,plain,
    ! [W: $i,V: $i,Z: $i,Y: $i,U: $i,X: $i] :
      ( product(U,Z,W)
      | ~ product(Y,Z,V)
      | ~ product(X,Y,U)
      | ~ product(X,V,W) ),
    inference(modus_ponens,[status(thm)],[58,54]) ).

tff(60,plain,
    ! [W: $i,V: $i,Z: $i,Y: $i,U: $i,X: $i] :
      ( product(U,Z,W)
      | ~ product(Y,Z,V)
      | ~ product(X,Y,U)
      | ~ product(X,V,W) ),
    inference(skolemize,[status(sab)],[59]) ).

tff(61,plain,
    ! [W: $i,V: $i,Z: $i,Y: $i,U: $i,X: $i] :
      ( product(U,Z,W)
      | ~ product(Y,Z,V)
      | ~ product(X,Y,U)
      | ~ product(X,V,W) ),
    inference(modus_ponens,[status(thm)],[60,53]) ).

tff(62,plain,
    ( ( ~ ! [W: $i,V: $i,Z: $i,Y: $i,U: $i,X: $i] :
            ( product(U,Z,W)
            | ~ product(Y,Z,V)
            | ~ product(X,Y,U)
            | ~ product(X,V,W) )
      | product(a,identity,a)
      | ~ product(identity,a,a)
      | ~ product(identity,multiply(a,identity),a)
      | ~ product(a,identity,multiply(a,identity)) )
  <=> ( ~ ! [W: $i,V: $i,Z: $i,Y: $i,U: $i,X: $i] :
            ( product(U,Z,W)
            | ~ product(Y,Z,V)
            | ~ product(X,Y,U)
            | ~ product(X,V,W) )
      | product(a,identity,a)
      | ~ product(identity,a,a)
      | ~ product(identity,multiply(a,identity),a)
      | ~ product(a,identity,multiply(a,identity)) ) ),
    inference(rewrite,[status(thm)],[]) ).

tff(63,plain,
    ( ( product(a,identity,a)
      | ~ product(a,identity,multiply(a,identity))
      | ~ product(identity,a,a)
      | ~ product(identity,multiply(a,identity),a) )
  <=> ( product(a,identity,a)
      | ~ product(identity,a,a)
      | ~ product(identity,multiply(a,identity),a)
      | ~ product(a,identity,multiply(a,identity)) ) ),
    inference(rewrite,[status(thm)],[]) ).

tff(64,plain,
    ( ( ~ ! [W: $i,V: $i,Z: $i,Y: $i,U: $i,X: $i] :
            ( product(U,Z,W)
            | ~ product(Y,Z,V)
            | ~ product(X,Y,U)
            | ~ product(X,V,W) )
      | product(a,identity,a)
      | ~ product(a,identity,multiply(a,identity))
      | ~ product(identity,a,a)
      | ~ product(identity,multiply(a,identity),a) )
  <=> ( ~ ! [W: $i,V: $i,Z: $i,Y: $i,U: $i,X: $i] :
            ( product(U,Z,W)
            | ~ product(Y,Z,V)
            | ~ product(X,Y,U)
            | ~ product(X,V,W) )
      | product(a,identity,a)
      | ~ product(identity,a,a)
      | ~ product(identity,multiply(a,identity),a)
      | ~ product(a,identity,multiply(a,identity)) ) ),
    inference(monotonicity,[status(thm)],[63]) ).

tff(65,plain,
    ( ( ~ ! [W: $i,V: $i,Z: $i,Y: $i,U: $i,X: $i] :
            ( product(U,Z,W)
            | ~ product(Y,Z,V)
            | ~ product(X,Y,U)
            | ~ product(X,V,W) )
      | product(a,identity,a)
      | ~ product(a,identity,multiply(a,identity))
      | ~ product(identity,a,a)
      | ~ product(identity,multiply(a,identity),a) )
  <=> ( ~ ! [W: $i,V: $i,Z: $i,Y: $i,U: $i,X: $i] :
            ( product(U,Z,W)
            | ~ product(Y,Z,V)
            | ~ product(X,Y,U)
            | ~ product(X,V,W) )
      | product(a,identity,a)
      | ~ product(identity,a,a)
      | ~ product(identity,multiply(a,identity),a)
      | ~ product(a,identity,multiply(a,identity)) ) ),
    inference(transitivity,[status(thm)],[64,62]) ).

tff(66,plain,
    ( ~ ! [W: $i,V: $i,Z: $i,Y: $i,U: $i,X: $i] :
          ( product(U,Z,W)
          | ~ product(Y,Z,V)
          | ~ product(X,Y,U)
          | ~ product(X,V,W) )
    | product(a,identity,a)
    | ~ product(a,identity,multiply(a,identity))
    | ~ product(identity,a,a)
    | ~ product(identity,multiply(a,identity),a) ),
    inference(quant_inst,[status(thm)],[]) ).

tff(67,plain,
    ( ~ ! [W: $i,V: $i,Z: $i,Y: $i,U: $i,X: $i] :
          ( product(U,Z,W)
          | ~ product(Y,Z,V)
          | ~ product(X,Y,U)
          | ~ product(X,V,W) )
    | product(a,identity,a)
    | ~ product(identity,a,a)
    | ~ product(identity,multiply(a,identity),a)
    | ~ product(a,identity,multiply(a,identity)) ),
    inference(modus_ponens,[status(thm)],[66,65]) ).

tff(68,plain,
    ~ product(identity,multiply(a,identity),a),
    inference(unit_resolution,[status(thm)],[67,61,51,48,18]) ).

tff(69,plain,
    ( ( ~ ! [W: $i,V: $i,Z: $i,Y: $i,U: $i,X: $i] :
            ( product(U,Z,W)
            | ~ product(Y,Z,V)
            | ~ product(X,Y,U)
            | ~ product(X,V,W) )
      | product(identity,multiply(a,identity),a)
      | ~ product(inverse(a),multiply(a,identity),multiply(identity,identity))
      | ~ product(inverse(inverse(a)),inverse(a),identity)
      | ~ product(inverse(inverse(a)),multiply(identity,identity),a) )
  <=> ( ~ ! [W: $i,V: $i,Z: $i,Y: $i,U: $i,X: $i] :
            ( product(U,Z,W)
            | ~ product(Y,Z,V)
            | ~ product(X,Y,U)
            | ~ product(X,V,W) )
      | product(identity,multiply(a,identity),a)
      | ~ product(inverse(a),multiply(a,identity),multiply(identity,identity))
      | ~ product(inverse(inverse(a)),inverse(a),identity)
      | ~ product(inverse(inverse(a)),multiply(identity,identity),a) ) ),
    inference(rewrite,[status(thm)],[]) ).

tff(70,plain,
    ( ~ ! [W: $i,V: $i,Z: $i,Y: $i,U: $i,X: $i] :
          ( product(U,Z,W)
          | ~ product(Y,Z,V)
          | ~ product(X,Y,U)
          | ~ product(X,V,W) )
    | product(identity,multiply(a,identity),a)
    | ~ product(inverse(a),multiply(a,identity),multiply(identity,identity))
    | ~ product(inverse(inverse(a)),inverse(a),identity)
    | ~ product(inverse(inverse(a)),multiply(identity,identity),a) ),
    inference(quant_inst,[status(thm)],[]) ).

tff(71,plain,
    ( ~ ! [W: $i,V: $i,Z: $i,Y: $i,U: $i,X: $i] :
          ( product(U,Z,W)
          | ~ product(Y,Z,V)
          | ~ product(X,Y,U)
          | ~ product(X,V,W) )
    | product(identity,multiply(a,identity),a)
    | ~ product(inverse(a),multiply(a,identity),multiply(identity,identity))
    | ~ product(inverse(inverse(a)),inverse(a),identity)
    | ~ product(inverse(inverse(a)),multiply(identity,identity),a) ),
    inference(modus_ponens,[status(thm)],[70,69]) ).

tff(72,plain,
    ~ product(inverse(inverse(a)),multiply(identity,identity),a),
    inference(unit_resolution,[status(thm)],[71,61,68,39,9]) ).

tff(73,plain,
    ( ~ ! [X: $i] : product(identity,X,X)
    | product(identity,identity,identity) ),
    inference(quant_inst,[status(thm)],[]) ).

tff(74,plain,
    product(identity,identity,identity),
    inference(unit_resolution,[status(thm)],[73,46]) ).

tff(75,plain,
    ^ [W: $i,Z: $i,Y: $i,X: $i] :
      refl(( ( equalish(Z,W)
          | ~ product(X,Y,W)
          | ~ product(X,Y,Z) )
      <=> ( equalish(Z,W)
          | ~ product(X,Y,W)
          | ~ product(X,Y,Z) ) )),
    inference(bind,[status(th)],[]) ).

tff(76,plain,
    ( ! [W: $i,Z: $i,Y: $i,X: $i] :
        ( equalish(Z,W)
        | ~ product(X,Y,W)
        | ~ product(X,Y,Z) )
  <=> ! [W: $i,Z: $i,Y: $i,X: $i] :
        ( equalish(Z,W)
        | ~ product(X,Y,W)
        | ~ product(X,Y,Z) ) ),
    inference(quant_intro,[status(thm)],[75]) ).

tff(77,plain,
    ( ! [W: $i,Z: $i,Y: $i,X: $i] :
        ( equalish(Z,W)
        | ~ product(X,Y,W)
        | ~ product(X,Y,Z) )
  <=> ! [W: $i,Z: $i,Y: $i,X: $i] :
        ( equalish(Z,W)
        | ~ product(X,Y,W)
        | ~ product(X,Y,Z) ) ),
    inference(rewrite,[status(thm)],[]) ).

tff(78,plain,
    ^ [W: $i,Z: $i,Y: $i,X: $i] :
      rewrite(( ( ~ product(X,Y,Z)
          | ~ product(X,Y,W)
          | equalish(Z,W) )
      <=> ( equalish(Z,W)
          | ~ product(X,Y,W)
          | ~ product(X,Y,Z) ) )),
    inference(bind,[status(th)],[]) ).

tff(79,plain,
    ( ! [W: $i,Z: $i,Y: $i,X: $i] :
        ( ~ product(X,Y,Z)
        | ~ product(X,Y,W)
        | equalish(Z,W) )
  <=> ! [W: $i,Z: $i,Y: $i,X: $i] :
        ( equalish(Z,W)
        | ~ product(X,Y,W)
        | ~ product(X,Y,Z) ) ),
    inference(quant_intro,[status(thm)],[78]) ).

tff(80,axiom,
    ! [W: $i,Z: $i,Y: $i,X: $i] :
      ( ~ product(X,Y,Z)
      | ~ product(X,Y,W)
      | equalish(Z,W) ),
    file('/export/starexec/sandbox/benchmark/Axioms/GRP005-0.ax',total_function2) ).

tff(81,plain,
    ! [W: $i,Z: $i,Y: $i,X: $i] :
      ( equalish(Z,W)
      | ~ product(X,Y,W)
      | ~ product(X,Y,Z) ),
    inference(modus_ponens,[status(thm)],[80,79]) ).

tff(82,plain,
    ! [W: $i,Z: $i,Y: $i,X: $i] :
      ( equalish(Z,W)
      | ~ product(X,Y,W)
      | ~ product(X,Y,Z) ),
    inference(modus_ponens,[status(thm)],[81,77]) ).

tff(83,plain,
    ! [W: $i,Z: $i,Y: $i,X: $i] :
      ( equalish(Z,W)
      | ~ product(X,Y,W)
      | ~ product(X,Y,Z) ),
    inference(skolemize,[status(sab)],[82]) ).

tff(84,plain,
    ! [W: $i,Z: $i,Y: $i,X: $i] :
      ( equalish(Z,W)
      | ~ product(X,Y,W)
      | ~ product(X,Y,Z) ),
    inference(modus_ponens,[status(thm)],[83,76]) ).

tff(85,plain,
    ( ( ~ ! [W: $i,Z: $i,Y: $i,X: $i] :
            ( equalish(Z,W)
            | ~ product(X,Y,W)
            | ~ product(X,Y,Z) )
      | ~ product(identity,identity,identity)
      | equalish(identity,multiply(identity,identity))
      | ~ product(identity,identity,multiply(identity,identity)) )
  <=> ( ~ ! [W: $i,Z: $i,Y: $i,X: $i] :
            ( equalish(Z,W)
            | ~ product(X,Y,W)
            | ~ product(X,Y,Z) )
      | ~ product(identity,identity,identity)
      | equalish(identity,multiply(identity,identity))
      | ~ product(identity,identity,multiply(identity,identity)) ) ),
    inference(rewrite,[status(thm)],[]) ).

tff(86,plain,
    ( ( equalish(identity,multiply(identity,identity))
      | ~ product(identity,identity,multiply(identity,identity))
      | ~ product(identity,identity,identity) )
  <=> ( ~ product(identity,identity,identity)
      | equalish(identity,multiply(identity,identity))
      | ~ product(identity,identity,multiply(identity,identity)) ) ),
    inference(rewrite,[status(thm)],[]) ).

tff(87,plain,
    ( ( ~ ! [W: $i,Z: $i,Y: $i,X: $i] :
            ( equalish(Z,W)
            | ~ product(X,Y,W)
            | ~ product(X,Y,Z) )
      | equalish(identity,multiply(identity,identity))
      | ~ product(identity,identity,multiply(identity,identity))
      | ~ product(identity,identity,identity) )
  <=> ( ~ ! [W: $i,Z: $i,Y: $i,X: $i] :
            ( equalish(Z,W)
            | ~ product(X,Y,W)
            | ~ product(X,Y,Z) )
      | ~ product(identity,identity,identity)
      | equalish(identity,multiply(identity,identity))
      | ~ product(identity,identity,multiply(identity,identity)) ) ),
    inference(monotonicity,[status(thm)],[86]) ).

tff(88,plain,
    ( ( ~ ! [W: $i,Z: $i,Y: $i,X: $i] :
            ( equalish(Z,W)
            | ~ product(X,Y,W)
            | ~ product(X,Y,Z) )
      | equalish(identity,multiply(identity,identity))
      | ~ product(identity,identity,multiply(identity,identity))
      | ~ product(identity,identity,identity) )
  <=> ( ~ ! [W: $i,Z: $i,Y: $i,X: $i] :
            ( equalish(Z,W)
            | ~ product(X,Y,W)
            | ~ product(X,Y,Z) )
      | ~ product(identity,identity,identity)
      | equalish(identity,multiply(identity,identity))
      | ~ product(identity,identity,multiply(identity,identity)) ) ),
    inference(transitivity,[status(thm)],[87,85]) ).

tff(89,plain,
    ( ~ ! [W: $i,Z: $i,Y: $i,X: $i] :
          ( equalish(Z,W)
          | ~ product(X,Y,W)
          | ~ product(X,Y,Z) )
    | equalish(identity,multiply(identity,identity))
    | ~ product(identity,identity,multiply(identity,identity))
    | ~ product(identity,identity,identity) ),
    inference(quant_inst,[status(thm)],[]) ).

tff(90,plain,
    ( ~ ! [W: $i,Z: $i,Y: $i,X: $i] :
          ( equalish(Z,W)
          | ~ product(X,Y,W)
          | ~ product(X,Y,Z) )
    | ~ product(identity,identity,identity)
    | equalish(identity,multiply(identity,identity))
    | ~ product(identity,identity,multiply(identity,identity)) ),
    inference(modus_ponens,[status(thm)],[89,88]) ).

tff(91,plain,
    equalish(identity,multiply(identity,identity)),
    inference(unit_resolution,[status(thm)],[90,84,74,20]) ).

tff(92,plain,
    ^ [W: $i,Z: $i,Y: $i,X: $i] :
      refl(( ( ~ product(W,Z,X)
          | product(W,Z,Y)
          | ~ equalish(X,Y) )
      <=> ( ~ product(W,Z,X)
          | product(W,Z,Y)
          | ~ equalish(X,Y) ) )),
    inference(bind,[status(th)],[]) ).

tff(93,plain,
    ( ! [W: $i,Z: $i,Y: $i,X: $i] :
        ( ~ product(W,Z,X)
        | product(W,Z,Y)
        | ~ equalish(X,Y) )
  <=> ! [W: $i,Z: $i,Y: $i,X: $i] :
        ( ~ product(W,Z,X)
        | product(W,Z,Y)
        | ~ equalish(X,Y) ) ),
    inference(quant_intro,[status(thm)],[92]) ).

tff(94,plain,
    ( ! [W: $i,Z: $i,Y: $i,X: $i] :
        ( ~ product(W,Z,X)
        | product(W,Z,Y)
        | ~ equalish(X,Y) )
  <=> ! [W: $i,Z: $i,Y: $i,X: $i] :
        ( ~ product(W,Z,X)
        | product(W,Z,Y)
        | ~ equalish(X,Y) ) ),
    inference(rewrite,[status(thm)],[]) ).

tff(95,plain,
    ^ [W: $i,Z: $i,Y: $i,X: $i] :
      rewrite(( ( ~ equalish(X,Y)
          | ~ product(W,Z,X)
          | product(W,Z,Y) )
      <=> ( ~ product(W,Z,X)
          | product(W,Z,Y)
          | ~ equalish(X,Y) ) )),
    inference(bind,[status(th)],[]) ).

tff(96,plain,
    ( ! [W: $i,Z: $i,Y: $i,X: $i] :
        ( ~ equalish(X,Y)
        | ~ product(W,Z,X)
        | product(W,Z,Y) )
  <=> ! [W: $i,Z: $i,Y: $i,X: $i] :
        ( ~ product(W,Z,X)
        | product(W,Z,Y)
        | ~ equalish(X,Y) ) ),
    inference(quant_intro,[status(thm)],[95]) ).

tff(97,axiom,
    ! [W: $i,Z: $i,Y: $i,X: $i] :
      ( ~ equalish(X,Y)
      | ~ product(W,Z,X)
      | product(W,Z,Y) ),
    file('/export/starexec/sandbox/benchmark/Axioms/GRP005-0.ax',product_substitution3) ).

tff(98,plain,
    ! [W: $i,Z: $i,Y: $i,X: $i] :
      ( ~ product(W,Z,X)
      | product(W,Z,Y)
      | ~ equalish(X,Y) ),
    inference(modus_ponens,[status(thm)],[97,96]) ).

tff(99,plain,
    ! [W: $i,Z: $i,Y: $i,X: $i] :
      ( ~ product(W,Z,X)
      | product(W,Z,Y)
      | ~ equalish(X,Y) ),
    inference(modus_ponens,[status(thm)],[98,94]) ).

tff(100,plain,
    ! [W: $i,Z: $i,Y: $i,X: $i] :
      ( ~ product(W,Z,X)
      | product(W,Z,Y)
      | ~ equalish(X,Y) ),
    inference(skolemize,[status(sab)],[99]) ).

tff(101,plain,
    ! [W: $i,Z: $i,Y: $i,X: $i] :
      ( ~ product(W,Z,X)
      | product(W,Z,Y)
      | ~ equalish(X,Y) ),
    inference(modus_ponens,[status(thm)],[100,93]) ).

tff(102,plain,
    ( ( ~ ! [W: $i,Z: $i,Y: $i,X: $i] :
            ( ~ product(W,Z,X)
            | product(W,Z,Y)
            | ~ equalish(X,Y) )
      | product(inverse(a),a,multiply(identity,identity))
      | ~ equalish(identity,multiply(identity,identity))
      | ~ product(inverse(a),a,identity) )
  <=> ( ~ ! [W: $i,Z: $i,Y: $i,X: $i] :
            ( ~ product(W,Z,X)
            | product(W,Z,Y)
            | ~ equalish(X,Y) )
      | product(inverse(a),a,multiply(identity,identity))
      | ~ equalish(identity,multiply(identity,identity))
      | ~ product(inverse(a),a,identity) ) ),
    inference(rewrite,[status(thm)],[]) ).

tff(103,plain,
    ( ( ~ product(inverse(a),a,identity)
      | product(inverse(a),a,multiply(identity,identity))
      | ~ equalish(identity,multiply(identity,identity)) )
  <=> ( product(inverse(a),a,multiply(identity,identity))
      | ~ equalish(identity,multiply(identity,identity))
      | ~ product(inverse(a),a,identity) ) ),
    inference(rewrite,[status(thm)],[]) ).

tff(104,plain,
    ( ( ~ ! [W: $i,Z: $i,Y: $i,X: $i] :
            ( ~ product(W,Z,X)
            | product(W,Z,Y)
            | ~ equalish(X,Y) )
      | ~ product(inverse(a),a,identity)
      | product(inverse(a),a,multiply(identity,identity))
      | ~ equalish(identity,multiply(identity,identity)) )
  <=> ( ~ ! [W: $i,Z: $i,Y: $i,X: $i] :
            ( ~ product(W,Z,X)
            | product(W,Z,Y)
            | ~ equalish(X,Y) )
      | product(inverse(a),a,multiply(identity,identity))
      | ~ equalish(identity,multiply(identity,identity))
      | ~ product(inverse(a),a,identity) ) ),
    inference(monotonicity,[status(thm)],[103]) ).

tff(105,plain,
    ( ( ~ ! [W: $i,Z: $i,Y: $i,X: $i] :
            ( ~ product(W,Z,X)
            | product(W,Z,Y)
            | ~ equalish(X,Y) )
      | ~ product(inverse(a),a,identity)
      | product(inverse(a),a,multiply(identity,identity))
      | ~ equalish(identity,multiply(identity,identity)) )
  <=> ( ~ ! [W: $i,Z: $i,Y: $i,X: $i] :
            ( ~ product(W,Z,X)
            | product(W,Z,Y)
            | ~ equalish(X,Y) )
      | product(inverse(a),a,multiply(identity,identity))
      | ~ equalish(identity,multiply(identity,identity))
      | ~ product(inverse(a),a,identity) ) ),
    inference(transitivity,[status(thm)],[104,102]) ).

tff(106,plain,
    ( ~ ! [W: $i,Z: $i,Y: $i,X: $i] :
          ( ~ product(W,Z,X)
          | product(W,Z,Y)
          | ~ equalish(X,Y) )
    | ~ product(inverse(a),a,identity)
    | product(inverse(a),a,multiply(identity,identity))
    | ~ equalish(identity,multiply(identity,identity)) ),
    inference(quant_inst,[status(thm)],[]) ).

tff(107,plain,
    ( ~ ! [W: $i,Z: $i,Y: $i,X: $i] :
          ( ~ product(W,Z,X)
          | product(W,Z,Y)
          | ~ equalish(X,Y) )
    | product(inverse(a),a,multiply(identity,identity))
    | ~ equalish(identity,multiply(identity,identity))
    | ~ product(inverse(a),a,identity) ),
    inference(modus_ponens,[status(thm)],[106,105]) ).

tff(108,plain,
    product(inverse(a),a,multiply(identity,identity)),
    inference(unit_resolution,[status(thm)],[107,101,22,91]) ).

tff(109,plain,
    ( ( ~ ! [W: $i,V: $i,Z: $i,Y: $i,U: $i,X: $i] :
            ( product(X,V,W)
            | ~ product(U,Z,W)
            | ~ product(Y,Z,V)
            | ~ product(X,Y,U) )
      | ~ product(identity,a,a)
      | ~ product(inverse(inverse(a)),inverse(a),identity)
      | product(inverse(inverse(a)),multiply(identity,identity),a)
      | ~ product(inverse(a),a,multiply(identity,identity)) )
  <=> ( ~ ! [W: $i,V: $i,Z: $i,Y: $i,U: $i,X: $i] :
            ( product(X,V,W)
            | ~ product(U,Z,W)
            | ~ product(Y,Z,V)
            | ~ product(X,Y,U) )
      | ~ product(identity,a,a)
      | ~ product(inverse(inverse(a)),inverse(a),identity)
      | product(inverse(inverse(a)),multiply(identity,identity),a)
      | ~ product(inverse(a),a,multiply(identity,identity)) ) ),
    inference(rewrite,[status(thm)],[]) ).

tff(110,plain,
    ( ( product(inverse(inverse(a)),multiply(identity,identity),a)
      | ~ product(identity,a,a)
      | ~ product(inverse(a),a,multiply(identity,identity))
      | ~ product(inverse(inverse(a)),inverse(a),identity) )
  <=> ( ~ product(identity,a,a)
      | ~ product(inverse(inverse(a)),inverse(a),identity)
      | product(inverse(inverse(a)),multiply(identity,identity),a)
      | ~ product(inverse(a),a,multiply(identity,identity)) ) ),
    inference(rewrite,[status(thm)],[]) ).

tff(111,plain,
    ( ( ~ ! [W: $i,V: $i,Z: $i,Y: $i,U: $i,X: $i] :
            ( product(X,V,W)
            | ~ product(U,Z,W)
            | ~ product(Y,Z,V)
            | ~ product(X,Y,U) )
      | product(inverse(inverse(a)),multiply(identity,identity),a)
      | ~ product(identity,a,a)
      | ~ product(inverse(a),a,multiply(identity,identity))
      | ~ product(inverse(inverse(a)),inverse(a),identity) )
  <=> ( ~ ! [W: $i,V: $i,Z: $i,Y: $i,U: $i,X: $i] :
            ( product(X,V,W)
            | ~ product(U,Z,W)
            | ~ product(Y,Z,V)
            | ~ product(X,Y,U) )
      | ~ product(identity,a,a)
      | ~ product(inverse(inverse(a)),inverse(a),identity)
      | product(inverse(inverse(a)),multiply(identity,identity),a)
      | ~ product(inverse(a),a,multiply(identity,identity)) ) ),
    inference(monotonicity,[status(thm)],[110]) ).

tff(112,plain,
    ( ( ~ ! [W: $i,V: $i,Z: $i,Y: $i,U: $i,X: $i] :
            ( product(X,V,W)
            | ~ product(U,Z,W)
            | ~ product(Y,Z,V)
            | ~ product(X,Y,U) )
      | product(inverse(inverse(a)),multiply(identity,identity),a)
      | ~ product(identity,a,a)
      | ~ product(inverse(a),a,multiply(identity,identity))
      | ~ product(inverse(inverse(a)),inverse(a),identity) )
  <=> ( ~ ! [W: $i,V: $i,Z: $i,Y: $i,U: $i,X: $i] :
            ( product(X,V,W)
            | ~ product(U,Z,W)
            | ~ product(Y,Z,V)
            | ~ product(X,Y,U) )
      | ~ product(identity,a,a)
      | ~ product(inverse(inverse(a)),inverse(a),identity)
      | product(inverse(inverse(a)),multiply(identity,identity),a)
      | ~ product(inverse(a),a,multiply(identity,identity)) ) ),
    inference(transitivity,[status(thm)],[111,109]) ).

tff(113,plain,
    ( ~ ! [W: $i,V: $i,Z: $i,Y: $i,U: $i,X: $i] :
          ( product(X,V,W)
          | ~ product(U,Z,W)
          | ~ product(Y,Z,V)
          | ~ product(X,Y,U) )
    | product(inverse(inverse(a)),multiply(identity,identity),a)
    | ~ product(identity,a,a)
    | ~ product(inverse(a),a,multiply(identity,identity))
    | ~ product(inverse(inverse(a)),inverse(a),identity) ),
    inference(quant_inst,[status(thm)],[]) ).

tff(114,plain,
    ( ~ ! [W: $i,V: $i,Z: $i,Y: $i,U: $i,X: $i] :
          ( product(X,V,W)
          | ~ product(U,Z,W)
          | ~ product(Y,Z,V)
          | ~ product(X,Y,U) )
    | ~ product(identity,a,a)
    | ~ product(inverse(inverse(a)),inverse(a),identity)
    | product(inverse(inverse(a)),multiply(identity,identity),a)
    | ~ product(inverse(a),a,multiply(identity,identity)) ),
    inference(modus_ponens,[status(thm)],[113,112]) ).

tff(115,plain,
    $false,
    inference(unit_resolution,[status(thm)],[114,32,48,108,9,72]) ).

%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.07/0.12  % Problem    : GRP003-2 : TPTP v9.0.0. Released v1.0.0.
% 0.07/0.12  % Command    : run_E %s %d THM
% 0.12/0.33  % Computer : n003.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   : Thu Jun 19 15:27:54 EDT 2025
% 0.12/0.33  % CPUTime    : 
% 2.84/3.04  % SZS status Unsatisfiable
% 2.84/3.04  % SZS output start Proof
% See solution above
% 2.84/3.06  % E exiting
%------------------------------------------------------------------------------