TSTP Solution File: GRP125-1.003 by Z3---4.8.9.0

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : Z3---4.8.9.0
% Problem  : GRP125-1.003 : TPTP v8.1.0. Released v1.2.0.
% Transfm  : none
% Format   : tptp
% Command  : z3_tptp -proof -model -t:%d -file:%s

% Computer : n024.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 22:26:02 EDT 2022

% Result   : Unsatisfiable 0.20s 0.41s
% Output   : Proof 0.20s
% Verified : 
% SZS Type : -

% Comments : 
%------------------------------------------------------------------------------
%----WARNING: Could not form TPTP format derivation
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.11/0.12  % Problem  : GRP125-1.003 : TPTP v8.1.0. Released v1.2.0.
% 0.11/0.13  % Command  : z3_tptp -proof -model -t:%d -file:%s
% 0.13/0.34  % Computer : n024.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 14:59:04 EDT 2022
% 0.13/0.34  % 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.
% 0.20/0.41  % SZS status Unsatisfiable
% 0.20/0.41  % SZS output start Proof
% 0.20/0.41  tff(product_type, type, (
% 0.20/0.41     product: ( $i * $i * $i ) > $o)).
% 0.20/0.41  tff(e_1_type, type, (
% 0.20/0.41     e_1: $i)).
% 0.20/0.41  tff(e_3_type, type, (
% 0.20/0.41     e_3: $i)).
% 0.20/0.41  tff(e_2_type, type, (
% 0.20/0.41     e_2: $i)).
% 0.20/0.41  tff(equalish_type, type, (
% 0.20/0.41     equalish: ( $i * $i ) > $o)).
% 0.20/0.41  tff(group_element_type, type, (
% 0.20/0.41     group_element: $i > $o)).
% 0.20/0.41  tff(1,plain,
% 0.20/0.41      (^[X: $i] : refl(product(X, X, X) <=> product(X, X, X))),
% 0.20/0.41      inference(bind,[status(th)],[])).
% 0.20/0.41  tff(2,plain,
% 0.20/0.41      (![X: $i] : product(X, X, X) <=> ![X: $i] : product(X, X, X)),
% 0.20/0.41      inference(quant_intro,[status(thm)],[1])).
% 0.20/0.41  tff(3,plain,
% 0.20/0.41      (![X: $i] : product(X, X, X) <=> ![X: $i] : product(X, X, X)),
% 0.20/0.41      inference(rewrite,[status(thm)],[])).
% 0.20/0.41  tff(4,axiom,(![X: $i] : product(X, X, X)), file('/export/starexec/sandbox2/benchmark/theBenchmark.p','product_idempotence')).
% 0.20/0.41  tff(5,plain,
% 0.20/0.41      (![X: $i] : product(X, X, X)),
% 0.20/0.41      inference(modus_ponens,[status(thm)],[4, 3])).
% 0.20/0.41  tff(6,plain,(
% 0.20/0.41      ![X: $i] : product(X, X, X)),
% 0.20/0.41      inference(skolemize,[status(sab)],[5])).
% 0.20/0.41  tff(7,plain,
% 0.20/0.41      (![X: $i] : product(X, X, X)),
% 0.20/0.41      inference(modus_ponens,[status(thm)],[6, 2])).
% 0.20/0.41  tff(8,plain,
% 0.20/0.41      ((~![X: $i] : product(X, X, X)) | product(e_1, e_1, e_1)),
% 0.20/0.41      inference(quant_inst,[status(thm)],[])).
% 0.20/0.41  tff(9,plain,
% 0.20/0.41      (product(e_1, e_1, e_1)),
% 0.20/0.41      inference(unit_resolution,[status(thm)],[8, 7])).
% 0.20/0.41  tff(10,assumption,(product(e_1, e_3, e_1)), introduced(assumption)).
% 0.20/0.41  tff(11,plain,
% 0.20/0.41      (^[W: $i, Z: $i, Y: $i, X: $i] : refl((equalish(W, Z) | (~product(X, Z, Y)) | (~product(X, W, Y))) <=> (equalish(W, Z) | (~product(X, Z, Y)) | (~product(X, W, Y))))),
% 0.20/0.41      inference(bind,[status(th)],[])).
% 0.20/0.41  tff(12,plain,
% 0.20/0.41      (![W: $i, Z: $i, Y: $i, X: $i] : (equalish(W, Z) | (~product(X, Z, Y)) | (~product(X, W, Y))) <=> ![W: $i, Z: $i, Y: $i, X: $i] : (equalish(W, Z) | (~product(X, Z, Y)) | (~product(X, W, Y)))),
% 0.20/0.41      inference(quant_intro,[status(thm)],[11])).
% 0.20/0.41  tff(13,plain,
% 0.20/0.41      (![W: $i, Z: $i, Y: $i, X: $i] : (equalish(W, Z) | (~product(X, Z, Y)) | (~product(X, W, Y))) <=> ![W: $i, Z: $i, Y: $i, X: $i] : (equalish(W, Z) | (~product(X, Z, Y)) | (~product(X, W, Y)))),
% 0.20/0.41      inference(rewrite,[status(thm)],[])).
% 0.20/0.41  tff(14,plain,
% 0.20/0.41      (^[W: $i, Z: $i, Y: $i, X: $i] : trans(monotonicity(rewrite(((~product(X, W, Y)) | (~product(X, Z, Y))) <=> ((~product(X, Z, Y)) | (~product(X, W, Y)))), ((((~product(X, W, Y)) | (~product(X, Z, Y))) | equalish(W, Z)) <=> (((~product(X, Z, Y)) | (~product(X, W, Y))) | equalish(W, Z)))), rewrite((((~product(X, Z, Y)) | (~product(X, W, Y))) | equalish(W, Z)) <=> (equalish(W, Z) | (~product(X, Z, Y)) | (~product(X, W, Y)))), ((((~product(X, W, Y)) | (~product(X, Z, Y))) | equalish(W, Z)) <=> (equalish(W, Z) | (~product(X, Z, Y)) | (~product(X, W, Y)))))),
% 0.20/0.41      inference(bind,[status(th)],[])).
% 0.20/0.41  tff(15,plain,
% 0.20/0.41      (![W: $i, Z: $i, Y: $i, X: $i] : (((~product(X, W, Y)) | (~product(X, Z, Y))) | equalish(W, Z)) <=> ![W: $i, Z: $i, Y: $i, X: $i] : (equalish(W, Z) | (~product(X, Z, Y)) | (~product(X, W, Y)))),
% 0.20/0.41      inference(quant_intro,[status(thm)],[14])).
% 0.20/0.41  tff(16,axiom,(![W: $i, Z: $i, Y: $i, X: $i] : (((~product(X, W, Y)) | (~product(X, Z, Y))) | equalish(W, Z))), file('/export/starexec/sandbox2/benchmark/theBenchmark.p','product_right_cancellation')).
% 0.20/0.41  tff(17,plain,
% 0.20/0.41      (![W: $i, Z: $i, Y: $i, X: $i] : (equalish(W, Z) | (~product(X, Z, Y)) | (~product(X, W, Y)))),
% 0.20/0.41      inference(modus_ponens,[status(thm)],[16, 15])).
% 0.20/0.41  tff(18,plain,
% 0.20/0.41      (![W: $i, Z: $i, Y: $i, X: $i] : (equalish(W, Z) | (~product(X, Z, Y)) | (~product(X, W, Y)))),
% 0.20/0.41      inference(modus_ponens,[status(thm)],[17, 13])).
% 0.20/0.41  tff(19,plain,(
% 0.20/0.41      ![W: $i, Z: $i, Y: $i, X: $i] : (equalish(W, Z) | (~product(X, Z, Y)) | (~product(X, W, Y)))),
% 0.20/0.41      inference(skolemize,[status(sab)],[18])).
% 0.20/0.41  tff(20,plain,
% 0.20/0.41      (![W: $i, Z: $i, Y: $i, X: $i] : (equalish(W, Z) | (~product(X, Z, Y)) | (~product(X, W, Y)))),
% 0.20/0.41      inference(modus_ponens,[status(thm)],[19, 12])).
% 0.20/0.41  tff(21,plain,
% 0.20/0.41      ((~equalish(e_3, e_1)) <=> (~equalish(e_3, e_1))),
% 0.20/0.41      inference(rewrite,[status(thm)],[])).
% 0.20/0.41  tff(22,axiom,(~equalish(e_3, e_1)), file('/export/starexec/sandbox2/benchmark/theBenchmark.p','e_3_is_not_e_1')).
% 0.20/0.42  tff(23,plain,
% 0.20/0.42      (~equalish(e_3, e_1)),
% 0.20/0.42      inference(modus_ponens,[status(thm)],[22, 21])).
% 0.20/0.42  tff(24,plain,
% 0.20/0.42      (((~![W: $i, Z: $i, Y: $i, X: $i] : (equalish(W, Z) | (~product(X, Z, Y)) | (~product(X, W, Y)))) | (equalish(e_3, e_1) | (~product(e_1, e_1, e_1)) | (~product(e_1, e_3, e_1)))) <=> ((~![W: $i, Z: $i, Y: $i, X: $i] : (equalish(W, Z) | (~product(X, Z, Y)) | (~product(X, W, Y)))) | equalish(e_3, e_1) | (~product(e_1, e_1, e_1)) | (~product(e_1, e_3, e_1)))),
% 0.20/0.42      inference(rewrite,[status(thm)],[])).
% 0.20/0.42  tff(25,plain,
% 0.20/0.42      ((~![W: $i, Z: $i, Y: $i, X: $i] : (equalish(W, Z) | (~product(X, Z, Y)) | (~product(X, W, Y)))) | (equalish(e_3, e_1) | (~product(e_1, e_1, e_1)) | (~product(e_1, e_3, e_1)))),
% 0.20/0.42      inference(quant_inst,[status(thm)],[])).
% 0.20/0.42  tff(26,plain,
% 0.20/0.42      ((~![W: $i, Z: $i, Y: $i, X: $i] : (equalish(W, Z) | (~product(X, Z, Y)) | (~product(X, W, Y)))) | equalish(e_3, e_1) | (~product(e_1, e_1, e_1)) | (~product(e_1, e_3, e_1))),
% 0.20/0.42      inference(modus_ponens,[status(thm)],[25, 24])).
% 0.20/0.42  tff(27,plain,
% 0.20/0.42      ($false),
% 0.20/0.42      inference(unit_resolution,[status(thm)],[26, 23, 20, 9, 10])).
% 0.20/0.42  tff(28,plain,(~product(e_1, e_3, e_1)), inference(lemma,lemma(discharge,[]))).
% 0.20/0.42  tff(29,assumption,(product(e_1, e_3, e_3)), introduced(assumption)).
% 0.20/0.42  tff(30,plain,
% 0.20/0.42      ((~![X: $i] : product(X, X, X)) | product(e_3, e_3, e_3)),
% 0.20/0.42      inference(quant_inst,[status(thm)],[])).
% 0.20/0.42  tff(31,plain,
% 0.20/0.42      (product(e_3, e_3, e_3)),
% 0.20/0.42      inference(unit_resolution,[status(thm)],[30, 7])).
% 0.20/0.42  tff(32,plain,
% 0.20/0.42      (^[W: $i, Z: $i, Y: $i, X: $i] : refl((equalish(W, Z) | (~product(Z, Y, X)) | (~product(W, Y, X))) <=> (equalish(W, Z) | (~product(Z, Y, X)) | (~product(W, Y, X))))),
% 0.20/0.42      inference(bind,[status(th)],[])).
% 0.20/0.42  tff(33,plain,
% 0.20/0.42      (![W: $i, Z: $i, Y: $i, X: $i] : (equalish(W, Z) | (~product(Z, Y, X)) | (~product(W, Y, X))) <=> ![W: $i, Z: $i, Y: $i, X: $i] : (equalish(W, Z) | (~product(Z, Y, X)) | (~product(W, Y, X)))),
% 0.20/0.42      inference(quant_intro,[status(thm)],[32])).
% 0.20/0.42  tff(34,plain,
% 0.20/0.42      (![W: $i, Z: $i, Y: $i, X: $i] : (equalish(W, Z) | (~product(Z, Y, X)) | (~product(W, Y, X))) <=> ![W: $i, Z: $i, Y: $i, X: $i] : (equalish(W, Z) | (~product(Z, Y, X)) | (~product(W, Y, X)))),
% 0.20/0.42      inference(rewrite,[status(thm)],[])).
% 0.20/0.42  tff(35,plain,
% 0.20/0.42      (^[W: $i, Z: $i, Y: $i, X: $i] : trans(monotonicity(rewrite(((~product(W, Y, X)) | (~product(Z, Y, X))) <=> ((~product(Z, Y, X)) | (~product(W, Y, X)))), ((((~product(W, Y, X)) | (~product(Z, Y, X))) | equalish(W, Z)) <=> (((~product(Z, Y, X)) | (~product(W, Y, X))) | equalish(W, Z)))), rewrite((((~product(Z, Y, X)) | (~product(W, Y, X))) | equalish(W, Z)) <=> (equalish(W, Z) | (~product(Z, Y, X)) | (~product(W, Y, X)))), ((((~product(W, Y, X)) | (~product(Z, Y, X))) | equalish(W, Z)) <=> (equalish(W, Z) | (~product(Z, Y, X)) | (~product(W, Y, X)))))),
% 0.20/0.42      inference(bind,[status(th)],[])).
% 0.20/0.42  tff(36,plain,
% 0.20/0.42      (![W: $i, Z: $i, Y: $i, X: $i] : (((~product(W, Y, X)) | (~product(Z, Y, X))) | equalish(W, Z)) <=> ![W: $i, Z: $i, Y: $i, X: $i] : (equalish(W, Z) | (~product(Z, Y, X)) | (~product(W, Y, X)))),
% 0.20/0.42      inference(quant_intro,[status(thm)],[35])).
% 0.20/0.42  tff(37,axiom,(![W: $i, Z: $i, Y: $i, X: $i] : (((~product(W, Y, X)) | (~product(Z, Y, X))) | equalish(W, Z))), file('/export/starexec/sandbox2/benchmark/theBenchmark.p','product_left_cancellation')).
% 0.20/0.42  tff(38,plain,
% 0.20/0.42      (![W: $i, Z: $i, Y: $i, X: $i] : (equalish(W, Z) | (~product(Z, Y, X)) | (~product(W, Y, X)))),
% 0.20/0.42      inference(modus_ponens,[status(thm)],[37, 36])).
% 0.20/0.42  tff(39,plain,
% 0.20/0.42      (![W: $i, Z: $i, Y: $i, X: $i] : (equalish(W, Z) | (~product(Z, Y, X)) | (~product(W, Y, X)))),
% 0.20/0.42      inference(modus_ponens,[status(thm)],[38, 34])).
% 0.20/0.42  tff(40,plain,(
% 0.20/0.42      ![W: $i, Z: $i, Y: $i, X: $i] : (equalish(W, Z) | (~product(Z, Y, X)) | (~product(W, Y, X)))),
% 0.20/0.42      inference(skolemize,[status(sab)],[39])).
% 0.20/0.42  tff(41,plain,
% 0.20/0.42      (![W: $i, Z: $i, Y: $i, X: $i] : (equalish(W, Z) | (~product(Z, Y, X)) | (~product(W, Y, X)))),
% 0.20/0.42      inference(modus_ponens,[status(thm)],[40, 33])).
% 0.20/0.42  tff(42,plain,
% 0.20/0.42      ((~equalish(e_1, e_3)) <=> (~equalish(e_1, e_3))),
% 0.20/0.42      inference(rewrite,[status(thm)],[])).
% 0.20/0.42  tff(43,axiom,(~equalish(e_1, e_3)), file('/export/starexec/sandbox2/benchmark/theBenchmark.p','e_1_is_not_e_3')).
% 0.20/0.42  tff(44,plain,
% 0.20/0.42      (~equalish(e_1, e_3)),
% 0.20/0.42      inference(modus_ponens,[status(thm)],[43, 42])).
% 0.20/0.42  tff(45,plain,
% 0.20/0.42      (((~![W: $i, Z: $i, Y: $i, X: $i] : (equalish(W, Z) | (~product(Z, Y, X)) | (~product(W, Y, X)))) | (equalish(e_1, e_3) | (~product(e_3, e_3, e_3)) | (~product(e_1, e_3, e_3)))) <=> ((~![W: $i, Z: $i, Y: $i, X: $i] : (equalish(W, Z) | (~product(Z, Y, X)) | (~product(W, Y, X)))) | equalish(e_1, e_3) | (~product(e_3, e_3, e_3)) | (~product(e_1, e_3, e_3)))),
% 0.20/0.42      inference(rewrite,[status(thm)],[])).
% 0.20/0.42  tff(46,plain,
% 0.20/0.42      ((~![W: $i, Z: $i, Y: $i, X: $i] : (equalish(W, Z) | (~product(Z, Y, X)) | (~product(W, Y, X)))) | (equalish(e_1, e_3) | (~product(e_3, e_3, e_3)) | (~product(e_1, e_3, e_3)))),
% 0.20/0.42      inference(quant_inst,[status(thm)],[])).
% 0.20/0.42  tff(47,plain,
% 0.20/0.42      ((~![W: $i, Z: $i, Y: $i, X: $i] : (equalish(W, Z) | (~product(Z, Y, X)) | (~product(W, Y, X)))) | equalish(e_1, e_3) | (~product(e_3, e_3, e_3)) | (~product(e_1, e_3, e_3))),
% 0.20/0.42      inference(modus_ponens,[status(thm)],[46, 45])).
% 0.20/0.42  tff(48,plain,
% 0.20/0.42      ($false),
% 0.20/0.42      inference(unit_resolution,[status(thm)],[47, 44, 41, 31, 29])).
% 0.20/0.42  tff(49,plain,(~product(e_1, e_3, e_3)), inference(lemma,lemma(discharge,[]))).
% 0.20/0.42  tff(50,plain,
% 0.20/0.42      (^[Y: $i, X: $i] : refl((product(X, Y, e_3) | product(X, Y, e_2) | product(X, Y, e_1) | (~group_element(Y)) | (~group_element(X))) <=> (product(X, Y, e_3) | product(X, Y, e_2) | product(X, Y, e_1) | (~group_element(Y)) | (~group_element(X))))),
% 0.20/0.42      inference(bind,[status(th)],[])).
% 0.20/0.42  tff(51,plain,
% 0.20/0.42      (![Y: $i, X: $i] : (product(X, Y, e_3) | product(X, Y, e_2) | product(X, Y, e_1) | (~group_element(Y)) | (~group_element(X))) <=> ![Y: $i, X: $i] : (product(X, Y, e_3) | product(X, Y, e_2) | product(X, Y, e_1) | (~group_element(Y)) | (~group_element(X)))),
% 0.20/0.42      inference(quant_intro,[status(thm)],[50])).
% 0.20/0.42  tff(52,plain,
% 0.20/0.42      (![Y: $i, X: $i] : (product(X, Y, e_3) | product(X, Y, e_2) | product(X, Y, e_1) | (~group_element(Y)) | (~group_element(X))) <=> ![Y: $i, X: $i] : (product(X, Y, e_3) | product(X, Y, e_2) | product(X, Y, e_1) | (~group_element(Y)) | (~group_element(X)))),
% 0.20/0.42      inference(rewrite,[status(thm)],[])).
% 0.20/0.42  tff(53,plain,
% 0.20/0.42      (^[Y: $i, X: $i] : trans(monotonicity(trans(monotonicity(rewrite((((~group_element(X)) | (~group_element(Y))) | product(X, Y, e_1)) <=> (product(X, Y, e_1) | (~group_element(Y)) | (~group_element(X)))), (((((~group_element(X)) | (~group_element(Y))) | product(X, Y, e_1)) | product(X, Y, e_2)) <=> ((product(X, Y, e_1) | (~group_element(Y)) | (~group_element(X))) | product(X, Y, e_2)))), rewrite(((product(X, Y, e_1) | (~group_element(Y)) | (~group_element(X))) | product(X, Y, e_2)) <=> (product(X, Y, e_2) | product(X, Y, e_1) | (~group_element(Y)) | (~group_element(X)))), (((((~group_element(X)) | (~group_element(Y))) | product(X, Y, e_1)) | product(X, Y, e_2)) <=> (product(X, Y, e_2) | product(X, Y, e_1) | (~group_element(Y)) | (~group_element(X))))), ((((((~group_element(X)) | (~group_element(Y))) | product(X, Y, e_1)) | product(X, Y, e_2)) | product(X, Y, e_3)) <=> ((product(X, Y, e_2) | product(X, Y, e_1) | (~group_element(Y)) | (~group_element(X))) | product(X, Y, e_3)))), rewrite(((product(X, Y, e_2) | product(X, Y, e_1) | (~group_element(Y)) | (~group_element(X))) | product(X, Y, e_3)) <=> (product(X, Y, e_3) | product(X, Y, e_2) | product(X, Y, e_1) | (~group_element(Y)) | (~group_element(X)))), ((((((~group_element(X)) | (~group_element(Y))) | product(X, Y, e_1)) | product(X, Y, e_2)) | product(X, Y, e_3)) <=> (product(X, Y, e_3) | product(X, Y, e_2) | product(X, Y, e_1) | (~group_element(Y)) | (~group_element(X)))))),
% 0.20/0.42      inference(bind,[status(th)],[])).
% 0.20/0.42  tff(54,plain,
% 0.20/0.42      (![Y: $i, X: $i] : (((((~group_element(X)) | (~group_element(Y))) | product(X, Y, e_1)) | product(X, Y, e_2)) | product(X, Y, e_3)) <=> ![Y: $i, X: $i] : (product(X, Y, e_3) | product(X, Y, e_2) | product(X, Y, e_1) | (~group_element(Y)) | (~group_element(X)))),
% 0.20/0.42      inference(quant_intro,[status(thm)],[53])).
% 0.20/0.42  tff(55,axiom,(![Y: $i, X: $i] : (((((~group_element(X)) | (~group_element(Y))) | product(X, Y, e_1)) | product(X, Y, e_2)) | product(X, Y, e_3))), file('/export/starexec/sandbox2/benchmark/theBenchmark.p','product_total_function1')).
% 0.20/0.42  tff(56,plain,
% 0.20/0.42      (![Y: $i, X: $i] : (product(X, Y, e_3) | product(X, Y, e_2) | product(X, Y, e_1) | (~group_element(Y)) | (~group_element(X)))),
% 0.20/0.42      inference(modus_ponens,[status(thm)],[55, 54])).
% 0.20/0.42  tff(57,plain,
% 0.20/0.42      (![Y: $i, X: $i] : (product(X, Y, e_3) | product(X, Y, e_2) | product(X, Y, e_1) | (~group_element(Y)) | (~group_element(X)))),
% 0.20/0.42      inference(modus_ponens,[status(thm)],[56, 52])).
% 0.20/0.42  tff(58,plain,(
% 0.20/0.42      ![Y: $i, X: $i] : (product(X, Y, e_3) | product(X, Y, e_2) | product(X, Y, e_1) | (~group_element(Y)) | (~group_element(X)))),
% 0.20/0.42      inference(skolemize,[status(sab)],[57])).
% 0.20/0.42  tff(59,plain,
% 0.20/0.42      (![Y: $i, X: $i] : (product(X, Y, e_3) | product(X, Y, e_2) | product(X, Y, e_1) | (~group_element(Y)) | (~group_element(X)))),
% 0.20/0.42      inference(modus_ponens,[status(thm)],[58, 51])).
% 0.20/0.42  tff(60,plain,
% 0.20/0.42      (group_element(e_3) <=> group_element(e_3)),
% 0.20/0.42      inference(rewrite,[status(thm)],[])).
% 0.20/0.42  tff(61,axiom,(group_element(e_3)), file('/export/starexec/sandbox2/benchmark/theBenchmark.p','element_3')).
% 0.20/0.42  tff(62,plain,
% 0.20/0.42      (group_element(e_3)),
% 0.20/0.42      inference(modus_ponens,[status(thm)],[61, 60])).
% 0.20/0.42  tff(63,plain,
% 0.20/0.42      (group_element(e_1) <=> group_element(e_1)),
% 0.20/0.42      inference(rewrite,[status(thm)],[])).
% 0.20/0.42  tff(64,axiom,(group_element(e_1)), file('/export/starexec/sandbox2/benchmark/theBenchmark.p','element_1')).
% 0.20/0.42  tff(65,plain,
% 0.20/0.42      (group_element(e_1)),
% 0.20/0.42      inference(modus_ponens,[status(thm)],[64, 63])).
% 0.20/0.42  tff(66,plain,
% 0.20/0.42      (((~![Y: $i, X: $i] : (product(X, Y, e_3) | product(X, Y, e_2) | product(X, Y, e_1) | (~group_element(Y)) | (~group_element(X)))) | ((~group_element(e_3)) | (~group_element(e_1)) | product(e_1, e_3, e_3) | product(e_1, e_3, e_1) | product(e_1, e_3, e_2))) <=> ((~![Y: $i, X: $i] : (product(X, Y, e_3) | product(X, Y, e_2) | product(X, Y, e_1) | (~group_element(Y)) | (~group_element(X)))) | (~group_element(e_3)) | (~group_element(e_1)) | product(e_1, e_3, e_3) | product(e_1, e_3, e_1) | product(e_1, e_3, e_2))),
% 0.20/0.42      inference(rewrite,[status(thm)],[])).
% 0.20/0.42  tff(67,plain,
% 0.20/0.42      ((product(e_1, e_3, e_3) | product(e_1, e_3, e_2) | product(e_1, e_3, e_1) | (~group_element(e_3)) | (~group_element(e_1))) <=> ((~group_element(e_3)) | (~group_element(e_1)) | product(e_1, e_3, e_3) | product(e_1, e_3, e_1) | product(e_1, e_3, e_2))),
% 0.20/0.42      inference(rewrite,[status(thm)],[])).
% 0.20/0.42  tff(68,plain,
% 0.20/0.42      (((~![Y: $i, X: $i] : (product(X, Y, e_3) | product(X, Y, e_2) | product(X, Y, e_1) | (~group_element(Y)) | (~group_element(X)))) | (product(e_1, e_3, e_3) | product(e_1, e_3, e_2) | product(e_1, e_3, e_1) | (~group_element(e_3)) | (~group_element(e_1)))) <=> ((~![Y: $i, X: $i] : (product(X, Y, e_3) | product(X, Y, e_2) | product(X, Y, e_1) | (~group_element(Y)) | (~group_element(X)))) | ((~group_element(e_3)) | (~group_element(e_1)) | product(e_1, e_3, e_3) | product(e_1, e_3, e_1) | product(e_1, e_3, e_2)))),
% 0.20/0.42      inference(monotonicity,[status(thm)],[67])).
% 0.20/0.42  tff(69,plain,
% 0.20/0.42      (((~![Y: $i, X: $i] : (product(X, Y, e_3) | product(X, Y, e_2) | product(X, Y, e_1) | (~group_element(Y)) | (~group_element(X)))) | (product(e_1, e_3, e_3) | product(e_1, e_3, e_2) | product(e_1, e_3, e_1) | (~group_element(e_3)) | (~group_element(e_1)))) <=> ((~![Y: $i, X: $i] : (product(X, Y, e_3) | product(X, Y, e_2) | product(X, Y, e_1) | (~group_element(Y)) | (~group_element(X)))) | (~group_element(e_3)) | (~group_element(e_1)) | product(e_1, e_3, e_3) | product(e_1, e_3, e_1) | product(e_1, e_3, e_2))),
% 0.20/0.42      inference(transitivity,[status(thm)],[68, 66])).
% 0.20/0.42  tff(70,plain,
% 0.20/0.42      ((~![Y: $i, X: $i] : (product(X, Y, e_3) | product(X, Y, e_2) | product(X, Y, e_1) | (~group_element(Y)) | (~group_element(X)))) | (product(e_1, e_3, e_3) | product(e_1, e_3, e_2) | product(e_1, e_3, e_1) | (~group_element(e_3)) | (~group_element(e_1)))),
% 0.20/0.42      inference(quant_inst,[status(thm)],[])).
% 0.20/0.42  tff(71,plain,
% 0.20/0.42      ((~![Y: $i, X: $i] : (product(X, Y, e_3) | product(X, Y, e_2) | product(X, Y, e_1) | (~group_element(Y)) | (~group_element(X)))) | (~group_element(e_3)) | (~group_element(e_1)) | product(e_1, e_3, e_3) | product(e_1, e_3, e_1) | product(e_1, e_3, e_2)),
% 0.20/0.43      inference(modus_ponens,[status(thm)],[70, 69])).
% 0.20/0.43  tff(72,plain,
% 0.20/0.43      (product(e_1, e_3, e_3) | product(e_1, e_3, e_1) | product(e_1, e_3, e_2)),
% 0.20/0.43      inference(unit_resolution,[status(thm)],[71, 65, 62, 59])).
% 0.20/0.43  tff(73,plain,
% 0.20/0.43      (product(e_1, e_3, e_1) | product(e_1, e_3, e_2)),
% 0.20/0.43      inference(unit_resolution,[status(thm)],[72, 49])).
% 0.20/0.43  tff(74,plain,
% 0.20/0.43      (product(e_1, e_3, e_2)),
% 0.20/0.43      inference(unit_resolution,[status(thm)],[73, 28])).
% 0.20/0.43  tff(75,assumption,(product(e_1, e_3, e_2)), introduced(assumption)).
% 0.20/0.43  tff(76,assumption,(product(e_3, e_2, e_2)), introduced(assumption)).
% 0.20/0.43  tff(77,plain,
% 0.20/0.43      ((~![X: $i] : product(X, X, X)) | product(e_2, e_2, e_2)),
% 0.20/0.43      inference(quant_inst,[status(thm)],[])).
% 0.20/0.43  tff(78,plain,
% 0.20/0.43      (product(e_2, e_2, e_2)),
% 0.20/0.43      inference(unit_resolution,[status(thm)],[77, 7])).
% 0.20/0.43  tff(79,plain,
% 0.20/0.43      ((~equalish(e_3, e_2)) <=> (~equalish(e_3, e_2))),
% 0.20/0.43      inference(rewrite,[status(thm)],[])).
% 0.20/0.43  tff(80,axiom,(~equalish(e_3, e_2)), file('/export/starexec/sandbox2/benchmark/theBenchmark.p','e_3_is_not_e_2')).
% 0.20/0.43  tff(81,plain,
% 0.20/0.43      (~equalish(e_3, e_2)),
% 0.20/0.43      inference(modus_ponens,[status(thm)],[80, 79])).
% 0.20/0.43  tff(82,plain,
% 0.20/0.43      (((~![W: $i, Z: $i, Y: $i, X: $i] : (equalish(W, Z) | (~product(Z, Y, X)) | (~product(W, Y, X)))) | (equalish(e_3, e_2) | (~product(e_2, e_2, e_2)) | (~product(e_3, e_2, e_2)))) <=> ((~![W: $i, Z: $i, Y: $i, X: $i] : (equalish(W, Z) | (~product(Z, Y, X)) | (~product(W, Y, X)))) | equalish(e_3, e_2) | (~product(e_2, e_2, e_2)) | (~product(e_3, e_2, e_2)))),
% 0.20/0.43      inference(rewrite,[status(thm)],[])).
% 0.20/0.43  tff(83,plain,
% 0.20/0.43      ((~![W: $i, Z: $i, Y: $i, X: $i] : (equalish(W, Z) | (~product(Z, Y, X)) | (~product(W, Y, X)))) | (equalish(e_3, e_2) | (~product(e_2, e_2, e_2)) | (~product(e_3, e_2, e_2)))),
% 0.20/0.43      inference(quant_inst,[status(thm)],[])).
% 0.20/0.43  tff(84,plain,
% 0.20/0.43      ((~![W: $i, Z: $i, Y: $i, X: $i] : (equalish(W, Z) | (~product(Z, Y, X)) | (~product(W, Y, X)))) | equalish(e_3, e_2) | (~product(e_2, e_2, e_2)) | (~product(e_3, e_2, e_2))),
% 0.20/0.43      inference(modus_ponens,[status(thm)],[83, 82])).
% 0.20/0.43  tff(85,plain,
% 0.20/0.43      ($false),
% 0.20/0.43      inference(unit_resolution,[status(thm)],[84, 81, 41, 78, 76])).
% 0.20/0.43  tff(86,plain,(~product(e_3, e_2, e_2)), inference(lemma,lemma(discharge,[]))).
% 0.20/0.43  tff(87,plain,
% 0.20/0.43      (^[Y: $i, Z1: $i, X: $i, Z2: $i] : refl(((~product(Y, X, Z2)) | product(Z1, Z2, X) | (~product(X, Y, Z1))) <=> ((~product(Y, X, Z2)) | product(Z1, Z2, X) | (~product(X, Y, Z1))))),
% 0.20/0.43      inference(bind,[status(th)],[])).
% 0.20/0.43  tff(88,plain,
% 0.20/0.43      (![Y: $i, Z1: $i, X: $i, Z2: $i] : ((~product(Y, X, Z2)) | product(Z1, Z2, X) | (~product(X, Y, Z1))) <=> ![Y: $i, Z1: $i, X: $i, Z2: $i] : ((~product(Y, X, Z2)) | product(Z1, Z2, X) | (~product(X, Y, Z1)))),
% 0.20/0.43      inference(quant_intro,[status(thm)],[87])).
% 0.20/0.43  tff(89,plain,
% 0.20/0.43      (![Y: $i, Z1: $i, X: $i, Z2: $i] : ((~product(Y, X, Z2)) | product(Z1, Z2, X) | (~product(X, Y, Z1))) <=> ![Y: $i, Z1: $i, X: $i, Z2: $i] : ((~product(Y, X, Z2)) | product(Z1, Z2, X) | (~product(X, Y, Z1)))),
% 0.20/0.43      inference(rewrite,[status(thm)],[])).
% 0.20/0.43  tff(90,plain,
% 0.20/0.43      (^[Y: $i, Z1: $i, X: $i, Z2: $i] : rewrite((((~product(X, Y, Z1)) | (~product(Y, X, Z2))) | product(Z1, Z2, X)) <=> ((~product(Y, X, Z2)) | product(Z1, Z2, X) | (~product(X, Y, Z1))))),
% 0.20/0.43      inference(bind,[status(th)],[])).
% 0.20/0.43  tff(91,plain,
% 0.20/0.43      (![Y: $i, Z1: $i, X: $i, Z2: $i] : (((~product(X, Y, Z1)) | (~product(Y, X, Z2))) | product(Z1, Z2, X)) <=> ![Y: $i, Z1: $i, X: $i, Z2: $i] : ((~product(Y, X, Z2)) | product(Z1, Z2, X) | (~product(X, Y, Z1)))),
% 0.20/0.43      inference(quant_intro,[status(thm)],[90])).
% 0.20/0.43  tff(92,axiom,(![Y: $i, Z1: $i, X: $i, Z2: $i] : (((~product(X, Y, Z1)) | (~product(Y, X, Z2))) | product(Z1, Z2, X))), file('/export/starexec/sandbox2/benchmark/theBenchmark.p','qg3')).
% 0.20/0.43  tff(93,plain,
% 0.20/0.43      (![Y: $i, Z1: $i, X: $i, Z2: $i] : ((~product(Y, X, Z2)) | product(Z1, Z2, X) | (~product(X, Y, Z1)))),
% 0.20/0.43      inference(modus_ponens,[status(thm)],[92, 91])).
% 0.20/0.43  tff(94,plain,
% 0.20/0.43      (![Y: $i, Z1: $i, X: $i, Z2: $i] : ((~product(Y, X, Z2)) | product(Z1, Z2, X) | (~product(X, Y, Z1)))),
% 0.20/0.43      inference(modus_ponens,[status(thm)],[93, 89])).
% 0.20/0.43  tff(95,plain,(
% 0.20/0.43      ![Y: $i, Z1: $i, X: $i, Z2: $i] : ((~product(Y, X, Z2)) | product(Z1, Z2, X) | (~product(X, Y, Z1)))),
% 0.20/0.43      inference(skolemize,[status(sab)],[94])).
% 0.20/0.43  tff(96,plain,
% 0.20/0.43      (![Y: $i, Z1: $i, X: $i, Z2: $i] : ((~product(Y, X, Z2)) | product(Z1, Z2, X) | (~product(X, Y, Z1)))),
% 0.20/0.43      inference(modus_ponens,[status(thm)],[95, 88])).
% 0.20/0.43  tff(97,plain,
% 0.20/0.43      (((~![Y: $i, Z1: $i, X: $i, Z2: $i] : ((~product(Y, X, Z2)) | product(Z1, Z2, X) | (~product(X, Y, Z1)))) | ((~product(e_2, e_2, e_2)) | product(e_3, e_2, e_2) | (~product(e_2, e_2, e_3)))) <=> ((~![Y: $i, Z1: $i, X: $i, Z2: $i] : ((~product(Y, X, Z2)) | product(Z1, Z2, X) | (~product(X, Y, Z1)))) | (~product(e_2, e_2, e_2)) | product(e_3, e_2, e_2) | (~product(e_2, e_2, e_3)))),
% 0.20/0.43      inference(rewrite,[status(thm)],[])).
% 0.20/0.43  tff(98,plain,
% 0.20/0.43      ((~![Y: $i, Z1: $i, X: $i, Z2: $i] : ((~product(Y, X, Z2)) | product(Z1, Z2, X) | (~product(X, Y, Z1)))) | ((~product(e_2, e_2, e_2)) | product(e_3, e_2, e_2) | (~product(e_2, e_2, e_3)))),
% 0.20/0.43      inference(quant_inst,[status(thm)],[])).
% 0.20/0.43  tff(99,plain,
% 0.20/0.43      ((~![Y: $i, Z1: $i, X: $i, Z2: $i] : ((~product(Y, X, Z2)) | product(Z1, Z2, X) | (~product(X, Y, Z1)))) | (~product(e_2, e_2, e_2)) | product(e_3, e_2, e_2) | (~product(e_2, e_2, e_3))),
% 0.20/0.43      inference(modus_ponens,[status(thm)],[98, 97])).
% 0.20/0.43  tff(100,plain,
% 0.20/0.43      (~product(e_2, e_2, e_3)),
% 0.20/0.43      inference(unit_resolution,[status(thm)],[99, 96, 78, 86])).
% 0.20/0.43  tff(101,assumption,(product(e_3, e_1, e_2)), introduced(assumption)).
% 0.20/0.43  tff(102,plain,
% 0.20/0.43      (((~![Y: $i, Z1: $i, X: $i, Z2: $i] : ((~product(Y, X, Z2)) | product(Z1, Z2, X) | (~product(X, Y, Z1)))) | ((~product(e_3, e_1, e_2)) | (~product(e_1, e_3, e_2)) | product(e_2, e_2, e_3))) <=> ((~![Y: $i, Z1: $i, X: $i, Z2: $i] : ((~product(Y, X, Z2)) | product(Z1, Z2, X) | (~product(X, Y, Z1)))) | (~product(e_3, e_1, e_2)) | (~product(e_1, e_3, e_2)) | product(e_2, e_2, e_3))),
% 0.20/0.43      inference(rewrite,[status(thm)],[])).
% 0.20/0.43  tff(103,plain,
% 0.20/0.43      (((~product(e_1, e_3, e_2)) | product(e_2, e_2, e_3) | (~product(e_3, e_1, e_2))) <=> ((~product(e_3, e_1, e_2)) | (~product(e_1, e_3, e_2)) | product(e_2, e_2, e_3))),
% 0.20/0.43      inference(rewrite,[status(thm)],[])).
% 0.20/0.43  tff(104,plain,
% 0.20/0.43      (((~![Y: $i, Z1: $i, X: $i, Z2: $i] : ((~product(Y, X, Z2)) | product(Z1, Z2, X) | (~product(X, Y, Z1)))) | ((~product(e_1, e_3, e_2)) | product(e_2, e_2, e_3) | (~product(e_3, e_1, e_2)))) <=> ((~![Y: $i, Z1: $i, X: $i, Z2: $i] : ((~product(Y, X, Z2)) | product(Z1, Z2, X) | (~product(X, Y, Z1)))) | ((~product(e_3, e_1, e_2)) | (~product(e_1, e_3, e_2)) | product(e_2, e_2, e_3)))),
% 0.20/0.43      inference(monotonicity,[status(thm)],[103])).
% 0.20/0.43  tff(105,plain,
% 0.20/0.43      (((~![Y: $i, Z1: $i, X: $i, Z2: $i] : ((~product(Y, X, Z2)) | product(Z1, Z2, X) | (~product(X, Y, Z1)))) | ((~product(e_1, e_3, e_2)) | product(e_2, e_2, e_3) | (~product(e_3, e_1, e_2)))) <=> ((~![Y: $i, Z1: $i, X: $i, Z2: $i] : ((~product(Y, X, Z2)) | product(Z1, Z2, X) | (~product(X, Y, Z1)))) | (~product(e_3, e_1, e_2)) | (~product(e_1, e_3, e_2)) | product(e_2, e_2, e_3))),
% 0.20/0.43      inference(transitivity,[status(thm)],[104, 102])).
% 0.20/0.43  tff(106,plain,
% 0.20/0.43      ((~![Y: $i, Z1: $i, X: $i, Z2: $i] : ((~product(Y, X, Z2)) | product(Z1, Z2, X) | (~product(X, Y, Z1)))) | ((~product(e_1, e_3, e_2)) | product(e_2, e_2, e_3) | (~product(e_3, e_1, e_2)))),
% 0.20/0.43      inference(quant_inst,[status(thm)],[])).
% 0.20/0.43  tff(107,plain,
% 0.20/0.43      ((~![Y: $i, Z1: $i, X: $i, Z2: $i] : ((~product(Y, X, Z2)) | product(Z1, Z2, X) | (~product(X, Y, Z1)))) | (~product(e_3, e_1, e_2)) | (~product(e_1, e_3, e_2)) | product(e_2, e_2, e_3)),
% 0.20/0.43      inference(modus_ponens,[status(thm)],[106, 105])).
% 0.20/0.43  tff(108,plain,
% 0.20/0.43      ($false),
% 0.20/0.43      inference(unit_resolution,[status(thm)],[107, 96, 101, 100, 75])).
% 0.20/0.43  tff(109,plain,((~product(e_1, e_3, e_2)) | (~product(e_3, e_1, e_2))), inference(lemma,lemma(discharge,[]))).
% 0.20/0.43  tff(110,plain,
% 0.20/0.43      (~product(e_3, e_1, e_2)),
% 0.20/0.43      inference(unit_resolution,[status(thm)],[109, 74])).
% 0.20/0.43  tff(111,assumption,(product(e_3, e_2, e_3)), introduced(assumption)).
% 0.20/0.43  tff(112,plain,
% 0.20/0.43      ((~equalish(e_2, e_3)) <=> (~equalish(e_2, e_3))),
% 0.20/0.43      inference(rewrite,[status(thm)],[])).
% 0.20/0.43  tff(113,axiom,(~equalish(e_2, e_3)), file('/export/starexec/sandbox2/benchmark/theBenchmark.p','e_2_is_not_e_3')).
% 0.20/0.43  tff(114,plain,
% 0.20/0.43      (~equalish(e_2, e_3)),
% 0.20/0.43      inference(modus_ponens,[status(thm)],[113, 112])).
% 0.20/0.43  tff(115,plain,
% 0.20/0.43      (((~![W: $i, Z: $i, Y: $i, X: $i] : (equalish(W, Z) | (~product(X, Z, Y)) | (~product(X, W, Y)))) | (equalish(e_2, e_3) | (~product(e_3, e_2, e_3)) | (~product(e_3, e_3, e_3)))) <=> ((~![W: $i, Z: $i, Y: $i, X: $i] : (equalish(W, Z) | (~product(X, Z, Y)) | (~product(X, W, Y)))) | equalish(e_2, e_3) | (~product(e_3, e_2, e_3)) | (~product(e_3, e_3, e_3)))),
% 0.20/0.43      inference(rewrite,[status(thm)],[])).
% 0.20/0.43  tff(116,plain,
% 0.20/0.43      ((equalish(e_2, e_3) | (~product(e_3, e_3, e_3)) | (~product(e_3, e_2, e_3))) <=> (equalish(e_2, e_3) | (~product(e_3, e_2, e_3)) | (~product(e_3, e_3, e_3)))),
% 0.20/0.43      inference(rewrite,[status(thm)],[])).
% 0.20/0.43  tff(117,plain,
% 0.20/0.43      (((~![W: $i, Z: $i, Y: $i, X: $i] : (equalish(W, Z) | (~product(X, Z, Y)) | (~product(X, W, Y)))) | (equalish(e_2, e_3) | (~product(e_3, e_3, e_3)) | (~product(e_3, e_2, e_3)))) <=> ((~![W: $i, Z: $i, Y: $i, X: $i] : (equalish(W, Z) | (~product(X, Z, Y)) | (~product(X, W, Y)))) | (equalish(e_2, e_3) | (~product(e_3, e_2, e_3)) | (~product(e_3, e_3, e_3))))),
% 0.20/0.43      inference(monotonicity,[status(thm)],[116])).
% 0.20/0.43  tff(118,plain,
% 0.20/0.43      (((~![W: $i, Z: $i, Y: $i, X: $i] : (equalish(W, Z) | (~product(X, Z, Y)) | (~product(X, W, Y)))) | (equalish(e_2, e_3) | (~product(e_3, e_3, e_3)) | (~product(e_3, e_2, e_3)))) <=> ((~![W: $i, Z: $i, Y: $i, X: $i] : (equalish(W, Z) | (~product(X, Z, Y)) | (~product(X, W, Y)))) | equalish(e_2, e_3) | (~product(e_3, e_2, e_3)) | (~product(e_3, e_3, e_3)))),
% 0.20/0.43      inference(transitivity,[status(thm)],[117, 115])).
% 0.20/0.43  tff(119,plain,
% 0.20/0.43      ((~![W: $i, Z: $i, Y: $i, X: $i] : (equalish(W, Z) | (~product(X, Z, Y)) | (~product(X, W, Y)))) | (equalish(e_2, e_3) | (~product(e_3, e_3, e_3)) | (~product(e_3, e_2, e_3)))),
% 0.20/0.43      inference(quant_inst,[status(thm)],[])).
% 0.20/0.43  tff(120,plain,
% 0.20/0.43      ((~![W: $i, Z: $i, Y: $i, X: $i] : (equalish(W, Z) | (~product(X, Z, Y)) | (~product(X, W, Y)))) | equalish(e_2, e_3) | (~product(e_3, e_2, e_3)) | (~product(e_3, e_3, e_3))),
% 0.20/0.43      inference(modus_ponens,[status(thm)],[119, 118])).
% 0.20/0.43  tff(121,plain,
% 0.20/0.43      ($false),
% 0.20/0.43      inference(unit_resolution,[status(thm)],[120, 114, 20, 111, 31])).
% 0.20/0.43  tff(122,plain,(~product(e_3, e_2, e_3)), inference(lemma,lemma(discharge,[]))).
% 0.20/0.43  tff(123,plain,
% 0.20/0.43      (((~![Y: $i, Z1: $i, X: $i, Z2: $i] : ((~product(Y, X, Z2)) | product(Z1, Z2, X) | (~product(X, Y, Z1)))) | (product(e_3, e_2, e_3) | (~product(e_1, e_3, e_2)) | (~product(e_3, e_1, e_3)))) <=> ((~![Y: $i, Z1: $i, X: $i, Z2: $i] : ((~product(Y, X, Z2)) | product(Z1, Z2, X) | (~product(X, Y, Z1)))) | product(e_3, e_2, e_3) | (~product(e_1, e_3, e_2)) | (~product(e_3, e_1, e_3)))),
% 0.20/0.43      inference(rewrite,[status(thm)],[])).
% 0.20/0.43  tff(124,plain,
% 0.20/0.43      (((~product(e_1, e_3, e_2)) | product(e_3, e_2, e_3) | (~product(e_3, e_1, e_3))) <=> (product(e_3, e_2, e_3) | (~product(e_1, e_3, e_2)) | (~product(e_3, e_1, e_3)))),
% 0.20/0.43      inference(rewrite,[status(thm)],[])).
% 0.20/0.43  tff(125,plain,
% 0.20/0.43      (((~![Y: $i, Z1: $i, X: $i, Z2: $i] : ((~product(Y, X, Z2)) | product(Z1, Z2, X) | (~product(X, Y, Z1)))) | ((~product(e_1, e_3, e_2)) | product(e_3, e_2, e_3) | (~product(e_3, e_1, e_3)))) <=> ((~![Y: $i, Z1: $i, X: $i, Z2: $i] : ((~product(Y, X, Z2)) | product(Z1, Z2, X) | (~product(X, Y, Z1)))) | (product(e_3, e_2, e_3) | (~product(e_1, e_3, e_2)) | (~product(e_3, e_1, e_3))))),
% 0.20/0.43      inference(monotonicity,[status(thm)],[124])).
% 0.20/0.43  tff(126,plain,
% 0.20/0.43      (((~![Y: $i, Z1: $i, X: $i, Z2: $i] : ((~product(Y, X, Z2)) | product(Z1, Z2, X) | (~product(X, Y, Z1)))) | ((~product(e_1, e_3, e_2)) | product(e_3, e_2, e_3) | (~product(e_3, e_1, e_3)))) <=> ((~![Y: $i, Z1: $i, X: $i, Z2: $i] : ((~product(Y, X, Z2)) | product(Z1, Z2, X) | (~product(X, Y, Z1)))) | product(e_3, e_2, e_3) | (~product(e_1, e_3, e_2)) | (~product(e_3, e_1, e_3)))),
% 0.20/0.43      inference(transitivity,[status(thm)],[125, 123])).
% 0.20/0.43  tff(127,plain,
% 0.20/0.43      ((~![Y: $i, Z1: $i, X: $i, Z2: $i] : ((~product(Y, X, Z2)) | product(Z1, Z2, X) | (~product(X, Y, Z1)))) | ((~product(e_1, e_3, e_2)) | product(e_3, e_2, e_3) | (~product(e_3, e_1, e_3)))),
% 0.20/0.44      inference(quant_inst,[status(thm)],[])).
% 0.20/0.44  tff(128,plain,
% 0.20/0.44      ((~![Y: $i, Z1: $i, X: $i, Z2: $i] : ((~product(Y, X, Z2)) | product(Z1, Z2, X) | (~product(X, Y, Z1)))) | product(e_3, e_2, e_3) | (~product(e_1, e_3, e_2)) | (~product(e_3, e_1, e_3))),
% 0.20/0.44      inference(modus_ponens,[status(thm)],[127, 126])).
% 0.20/0.44  tff(129,plain,
% 0.20/0.44      (~product(e_3, e_1, e_3)),
% 0.20/0.44      inference(unit_resolution,[status(thm)],[128, 96, 122, 74])).
% 0.20/0.44  tff(130,plain,
% 0.20/0.44      (((~![Y: $i, X: $i] : (product(X, Y, e_3) | product(X, Y, e_2) | product(X, Y, e_1) | (~group_element(Y)) | (~group_element(X)))) | (product(e_3, e_1, e_3) | (~group_element(e_3)) | product(e_3, e_1, e_2) | product(e_3, e_1, e_1) | (~group_element(e_1)))) <=> ((~![Y: $i, X: $i] : (product(X, Y, e_3) | product(X, Y, e_2) | product(X, Y, e_1) | (~group_element(Y)) | (~group_element(X)))) | product(e_3, e_1, e_3) | (~group_element(e_3)) | product(e_3, e_1, e_2) | product(e_3, e_1, e_1) | (~group_element(e_1)))),
% 0.20/0.44      inference(rewrite,[status(thm)],[])).
% 0.20/0.44  tff(131,plain,
% 0.20/0.44      ((product(e_3, e_1, e_3) | product(e_3, e_1, e_2) | product(e_3, e_1, e_1) | (~group_element(e_1)) | (~group_element(e_3))) <=> (product(e_3, e_1, e_3) | (~group_element(e_3)) | product(e_3, e_1, e_2) | product(e_3, e_1, e_1) | (~group_element(e_1)))),
% 0.20/0.44      inference(rewrite,[status(thm)],[])).
% 0.20/0.44  tff(132,plain,
% 0.20/0.44      (((~![Y: $i, X: $i] : (product(X, Y, e_3) | product(X, Y, e_2) | product(X, Y, e_1) | (~group_element(Y)) | (~group_element(X)))) | (product(e_3, e_1, e_3) | product(e_3, e_1, e_2) | product(e_3, e_1, e_1) | (~group_element(e_1)) | (~group_element(e_3)))) <=> ((~![Y: $i, X: $i] : (product(X, Y, e_3) | product(X, Y, e_2) | product(X, Y, e_1) | (~group_element(Y)) | (~group_element(X)))) | (product(e_3, e_1, e_3) | (~group_element(e_3)) | product(e_3, e_1, e_2) | product(e_3, e_1, e_1) | (~group_element(e_1))))),
% 0.20/0.44      inference(monotonicity,[status(thm)],[131])).
% 0.20/0.44  tff(133,plain,
% 0.20/0.44      (((~![Y: $i, X: $i] : (product(X, Y, e_3) | product(X, Y, e_2) | product(X, Y, e_1) | (~group_element(Y)) | (~group_element(X)))) | (product(e_3, e_1, e_3) | product(e_3, e_1, e_2) | product(e_3, e_1, e_1) | (~group_element(e_1)) | (~group_element(e_3)))) <=> ((~![Y: $i, X: $i] : (product(X, Y, e_3) | product(X, Y, e_2) | product(X, Y, e_1) | (~group_element(Y)) | (~group_element(X)))) | product(e_3, e_1, e_3) | (~group_element(e_3)) | product(e_3, e_1, e_2) | product(e_3, e_1, e_1) | (~group_element(e_1)))),
% 0.20/0.44      inference(transitivity,[status(thm)],[132, 130])).
% 0.20/0.44  tff(134,plain,
% 0.20/0.44      ((~![Y: $i, X: $i] : (product(X, Y, e_3) | product(X, Y, e_2) | product(X, Y, e_1) | (~group_element(Y)) | (~group_element(X)))) | (product(e_3, e_1, e_3) | product(e_3, e_1, e_2) | product(e_3, e_1, e_1) | (~group_element(e_1)) | (~group_element(e_3)))),
% 0.20/0.44      inference(quant_inst,[status(thm)],[])).
% 0.20/0.44  tff(135,plain,
% 0.20/0.44      ((~![Y: $i, X: $i] : (product(X, Y, e_3) | product(X, Y, e_2) | product(X, Y, e_1) | (~group_element(Y)) | (~group_element(X)))) | product(e_3, e_1, e_3) | (~group_element(e_3)) | product(e_3, e_1, e_2) | product(e_3, e_1, e_1) | (~group_element(e_1))),
% 0.20/0.44      inference(modus_ponens,[status(thm)],[134, 133])).
% 0.20/0.44  tff(136,plain,
% 0.20/0.44      (product(e_3, e_1, e_3) | product(e_3, e_1, e_2) | product(e_3, e_1, e_1)),
% 0.20/0.44      inference(unit_resolution,[status(thm)],[135, 65, 62, 59])).
% 0.20/0.44  tff(137,plain,
% 0.20/0.44      (product(e_3, e_1, e_1)),
% 0.20/0.44      inference(unit_resolution,[status(thm)],[136, 129, 110])).
% 0.20/0.44  tff(138,plain,
% 0.20/0.44      (((~![W: $i, Z: $i, Y: $i, X: $i] : (equalish(W, Z) | (~product(Z, Y, X)) | (~product(W, Y, X)))) | (equalish(e_3, e_1) | (~product(e_1, e_1, e_1)) | (~product(e_3, e_1, e_1)))) <=> ((~![W: $i, Z: $i, Y: $i, X: $i] : (equalish(W, Z) | (~product(Z, Y, X)) | (~product(W, Y, X)))) | equalish(e_3, e_1) | (~product(e_1, e_1, e_1)) | (~product(e_3, e_1, e_1)))),
% 0.20/0.44      inference(rewrite,[status(thm)],[])).
% 0.20/0.44  tff(139,plain,
% 0.20/0.44      ((~![W: $i, Z: $i, Y: $i, X: $i] : (equalish(W, Z) | (~product(Z, Y, X)) | (~product(W, Y, X)))) | (equalish(e_3, e_1) | (~product(e_1, e_1, e_1)) | (~product(e_3, e_1, e_1)))),
% 0.20/0.44      inference(quant_inst,[status(thm)],[])).
% 0.20/0.44  tff(140,plain,
% 0.20/0.44      ((~![W: $i, Z: $i, Y: $i, X: $i] : (equalish(W, Z) | (~product(Z, Y, X)) | (~product(W, Y, X)))) | equalish(e_3, e_1) | (~product(e_1, e_1, e_1)) | (~product(e_3, e_1, e_1))),
% 0.20/0.44      inference(modus_ponens,[status(thm)],[139, 138])).
% 0.20/0.44  tff(141,plain,
% 0.20/0.44      ($false),
% 0.20/0.44      inference(unit_resolution,[status(thm)],[140, 23, 41, 137, 9])).
% 0.20/0.44  % SZS output end Proof
%------------------------------------------------------------------------------