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Z3---4.15.1.UNS-Prf.s

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%------------------------------------------------------------------------------
% File     : Z3---4.15.1
% Problem  : GRP025-1 : TPTP v9.0.0. Bugfixed v1.2.1.
% Transfm  : none
% Format   : tptp
% Command  : run_E %s %d THM

% Computer : n006.cluster.edu
% Model    : x86_64 x86_64
% CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 2.10GHz
% Memory   : 8042.1875MB
% OS       : Linux 3.10.0-693.el7.x86_64
% CPULimit : 300s
% WCLimit  : 300s
% DateTime : Sat Jun 21 05:06:52 AM UTC 2025

% Result   : Unsatisfiable 0.18s 0.36s
% Output   : Proof 0.18s
% Verified : 
% SZS Type : -

% Comments : 
%------------------------------------------------------------------------------
%----WARNING: Could not form TPTP format derivation
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.11  % Problem    : GRP025-1 : TPTP v9.0.0. Bugfixed v1.2.1.
% 0.00/0.11  % Command    : run_E %s %d THM
% 0.10/0.31  % Computer : n006.cluster.edu
% 0.10/0.31  % Model    : x86_64 x86_64
% 0.10/0.31  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.10/0.31  % Memory   : 8042.1875MB
% 0.10/0.31  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.10/0.31  % CPULimit   : 300
% 0.10/0.31  % WCLimit    : 300
% 0.10/0.31  % DateTime   : Thu Jun 19 15:27:35 EDT 2025
% 0.10/0.32  % CPUTime    : 
% 0.18/0.36  % SZS status Unsatisfiable
% 0.18/0.36  % SZS output start Proof
% 0.18/0.36  tff(product_type, type, (
% 0.18/0.36     product: ( $i * $i * $i * $i ) > $o)).
% 0.18/0.36  tff(d_type, type, (
% 0.18/0.36     d: $i)).
% 0.18/0.36  tff(c_type, type, (
% 0.18/0.36     c: $i)).
% 0.18/0.36  tff(g2_type, type, (
% 0.18/0.36     g2: $i)).
% 0.18/0.36  tff(an_isomorphism_type, type, (
% 0.18/0.36     an_isomorphism: $i > $i)).
% 0.18/0.36  tff(d3_type, type, (
% 0.18/0.36     d3: $i)).
% 0.18/0.36  tff(d2_type, type, (
% 0.18/0.36     d2: $i)).
% 0.18/0.36  tff(d1_type, type, (
% 0.18/0.36     d1: $i)).
% 0.18/0.36  tff(b_type, type, (
% 0.18/0.36     b: $i)).
% 0.18/0.36  tff(a_type, type, (
% 0.18/0.36     a: $i)).
% 0.18/0.36  tff(g1_type, type, (
% 0.18/0.36     g1: $i)).
% 0.18/0.36  tff(group_member_type, type, (
% 0.18/0.36     group_member: ( $i * $i ) > $o)).
% 0.18/0.36  tff(1,assumption,(d2 = b), introduced(assumption)).
% 0.18/0.36  tff(2,plain,
% 0.18/0.36      (b = d2),
% 0.18/0.36      inference(symmetry,[status(thm)],[1])).
% 0.18/0.36  tff(3,assumption,(d1 = a), introduced(assumption)).
% 0.18/0.36  tff(4,assumption,(d2 = a), introduced(assumption)).
% 0.18/0.36  tff(5,plain,
% 0.18/0.36      (a = d2),
% 0.18/0.36      inference(symmetry,[status(thm)],[4])).
% 0.18/0.36  tff(6,plain,
% 0.18/0.36      (a = d1),
% 0.18/0.36      inference(symmetry,[status(thm)],[3])).
% 0.18/0.36  tff(7,plain,
% 0.18/0.36      (product(g1, a, a, d3) <=> product(g1, d1, d2, d3)),
% 0.18/0.36      inference(monotonicity,[status(thm)],[6, 5])).
% 0.18/0.36  tff(8,plain,
% 0.18/0.36      (product(g1, d1, d2, d3) <=> product(g1, a, a, d3)),
% 0.18/0.36      inference(symmetry,[status(thm)],[7])).
% 0.18/0.36  tff(9,plain,
% 0.18/0.36      (product(g1, d1, d2, d3) <=> product(g1, d1, d2, d3)),
% 0.18/0.36      inference(rewrite,[status(thm)],[])).
% 0.18/0.36  tff(10,axiom,(product(g1, d1, d2, d3)), file('/export/starexec/sandbox2/benchmark/theBenchmark.p','d1_times_d2_is_d3')).
% 0.18/0.36  tff(11,plain,
% 0.18/0.36      (product(g1, d1, d2, d3)),
% 0.18/0.36      inference(modus_ponens,[status(thm)],[10, 9])).
% 0.18/0.36  tff(12,plain,
% 0.18/0.36      (product(g1, a, a, d3)),
% 0.18/0.36      inference(modus_ponens,[status(thm)],[11, 8])).
% 0.18/0.36  tff(13,plain,
% 0.18/0.36      (product(g1, a, a, a) <=> product(g1, a, a, a)),
% 0.18/0.36      inference(rewrite,[status(thm)],[])).
% 0.18/0.36  tff(14,axiom,(product(g1, a, a, a)), file('/export/starexec/sandbox2/benchmark/theBenchmark.p','a_times_a_is_a')).
% 0.18/0.36  tff(15,plain,
% 0.18/0.36      (product(g1, a, a, a)),
% 0.18/0.36      inference(modus_ponens,[status(thm)],[14, 13])).
% 0.18/0.36  tff(16,plain,
% 0.18/0.36      (^[Xg: $i, W: $i, Z: $i, Y: $i, X: $i] : refl(((W = Z) | (~product(Xg, X, Y, W)) | (~product(Xg, X, Y, Z))) <=> ((W = Z) | (~product(Xg, X, Y, W)) | (~product(Xg, X, Y, Z))))),
% 0.18/0.36      inference(bind,[status(th)],[])).
% 0.18/0.36  tff(17,plain,
% 0.18/0.36      (![Xg: $i, W: $i, Z: $i, Y: $i, X: $i] : ((W = Z) | (~product(Xg, X, Y, W)) | (~product(Xg, X, Y, Z))) <=> ![Xg: $i, W: $i, Z: $i, Y: $i, X: $i] : ((W = Z) | (~product(Xg, X, Y, W)) | (~product(Xg, X, Y, Z)))),
% 0.18/0.36      inference(quant_intro,[status(thm)],[16])).
% 0.18/0.36  tff(18,plain,
% 0.18/0.36      (![Xg: $i, W: $i, Z: $i, Y: $i, X: $i] : ((W = Z) | (~product(Xg, X, Y, W)) | (~product(Xg, X, Y, Z))) <=> ![Xg: $i, W: $i, Z: $i, Y: $i, X: $i] : ((W = Z) | (~product(Xg, X, Y, W)) | (~product(Xg, X, Y, Z)))),
% 0.18/0.36      inference(rewrite,[status(thm)],[])).
% 0.18/0.36  tff(19,plain,
% 0.18/0.36      (^[Xg: $i, W: $i, Z: $i, Y: $i, X: $i] : rewrite((((~product(Xg, X, Y, Z)) | (~product(Xg, X, Y, W))) | (W = Z)) <=> ((W = Z) | (~product(Xg, X, Y, W)) | (~product(Xg, X, Y, Z))))),
% 0.18/0.36      inference(bind,[status(th)],[])).
% 0.18/0.36  tff(20,plain,
% 0.18/0.36      (![Xg: $i, W: $i, Z: $i, Y: $i, X: $i] : (((~product(Xg, X, Y, Z)) | (~product(Xg, X, Y, W))) | (W = Z)) <=> ![Xg: $i, W: $i, Z: $i, Y: $i, X: $i] : ((W = Z) | (~product(Xg, X, Y, W)) | (~product(Xg, X, Y, Z)))),
% 0.18/0.36      inference(quant_intro,[status(thm)],[19])).
% 0.18/0.36  tff(21,axiom,(![Xg: $i, W: $i, Z: $i, Y: $i, X: $i] : (((~product(Xg, X, Y, Z)) | (~product(Xg, X, Y, W))) | (W = Z))), file('/export/starexec/sandbox2/benchmark/Axioms/GRP006-0.ax','total_function2')).
% 0.18/0.36  tff(22,plain,
% 0.18/0.36      (![Xg: $i, W: $i, Z: $i, Y: $i, X: $i] : ((W = Z) | (~product(Xg, X, Y, W)) | (~product(Xg, X, Y, Z)))),
% 0.18/0.36      inference(modus_ponens,[status(thm)],[21, 20])).
% 0.18/0.36  tff(23,plain,
% 0.18/0.36      (![Xg: $i, W: $i, Z: $i, Y: $i, X: $i] : ((W = Z) | (~product(Xg, X, Y, W)) | (~product(Xg, X, Y, Z)))),
% 0.18/0.36      inference(modus_ponens,[status(thm)],[22, 18])).
% 0.18/0.36  tff(24,plain,(
% 0.18/0.36      ![Xg: $i, W: $i, Z: $i, Y: $i, X: $i] : ((W = Z) | (~product(Xg, X, Y, W)) | (~product(Xg, X, Y, Z)))),
% 0.18/0.36      inference(skolemize,[status(sab)],[23])).
% 0.18/0.36  tff(25,plain,
% 0.18/0.36      (![Xg: $i, W: $i, Z: $i, Y: $i, X: $i] : ((W = Z) | (~product(Xg, X, Y, W)) | (~product(Xg, X, Y, Z)))),
% 0.18/0.36      inference(modus_ponens,[status(thm)],[24, 17])).
% 0.18/0.36  tff(26,plain,
% 0.18/0.36      (((~![Xg: $i, W: $i, Z: $i, Y: $i, X: $i] : ((W = Z) | (~product(Xg, X, Y, W)) | (~product(Xg, X, Y, Z)))) | ((a = d3) | (~product(g1, a, a, a)) | (~product(g1, a, a, d3)))) <=> ((~![Xg: $i, W: $i, Z: $i, Y: $i, X: $i] : ((W = Z) | (~product(Xg, X, Y, W)) | (~product(Xg, X, Y, Z)))) | (a = d3) | (~product(g1, a, a, a)) | (~product(g1, a, a, d3)))),
% 0.18/0.36      inference(rewrite,[status(thm)],[])).
% 0.18/0.36  tff(27,plain,
% 0.18/0.36      ((~![Xg: $i, W: $i, Z: $i, Y: $i, X: $i] : ((W = Z) | (~product(Xg, X, Y, W)) | (~product(Xg, X, Y, Z)))) | ((a = d3) | (~product(g1, a, a, a)) | (~product(g1, a, a, d3)))),
% 0.18/0.36      inference(quant_inst,[status(thm)],[])).
% 0.18/0.36  tff(28,plain,
% 0.18/0.36      ((~![Xg: $i, W: $i, Z: $i, Y: $i, X: $i] : ((W = Z) | (~product(Xg, X, Y, W)) | (~product(Xg, X, Y, Z)))) | (a = d3) | (~product(g1, a, a, a)) | (~product(g1, a, a, d3))),
% 0.18/0.36      inference(modus_ponens,[status(thm)],[27, 26])).
% 0.18/0.36  tff(29,plain,
% 0.18/0.36      ((a = d3) | (~product(g1, a, a, d3))),
% 0.18/0.36      inference(unit_resolution,[status(thm)],[28, 25, 15])).
% 0.18/0.36  tff(30,plain,
% 0.18/0.36      (a = d3),
% 0.18/0.36      inference(unit_resolution,[status(thm)],[29, 12])).
% 0.18/0.36  tff(31,plain,
% 0.18/0.36      (d3 = a),
% 0.18/0.36      inference(symmetry,[status(thm)],[30])).
% 0.18/0.36  tff(32,plain,
% 0.18/0.36      (an_isomorphism(d3) = an_isomorphism(a)),
% 0.18/0.36      inference(monotonicity,[status(thm)],[31])).
% 0.18/0.36  tff(33,plain,
% 0.18/0.36      (an_isomorphism(a) = an_isomorphism(d3)),
% 0.18/0.36      inference(symmetry,[status(thm)],[32])).
% 0.18/0.36  tff(34,plain,
% 0.18/0.36      ((an_isomorphism(a) = c) <=> (an_isomorphism(a) = c)),
% 0.18/0.36      inference(rewrite,[status(thm)],[])).
% 0.18/0.36  tff(35,axiom,(an_isomorphism(a) = c), file('/export/starexec/sandbox2/benchmark/theBenchmark.p','a_maps_to_c')).
% 0.18/0.36  tff(36,plain,
% 0.18/0.36      (an_isomorphism(a) = c),
% 0.18/0.36      inference(modus_ponens,[status(thm)],[35, 34])).
% 0.18/0.36  tff(37,plain,
% 0.18/0.36      (c = an_isomorphism(a)),
% 0.18/0.36      inference(symmetry,[status(thm)],[36])).
% 0.18/0.36  tff(38,plain,
% 0.18/0.36      (c = an_isomorphism(d3)),
% 0.18/0.36      inference(transitivity,[status(thm)],[37, 33])).
% 0.18/0.36  tff(39,plain,
% 0.18/0.36      (an_isomorphism(d2) = an_isomorphism(a)),
% 0.18/0.36      inference(monotonicity,[status(thm)],[4])).
% 0.18/0.36  tff(40,plain,
% 0.18/0.36      (an_isomorphism(a) = an_isomorphism(d2)),
% 0.18/0.36      inference(symmetry,[status(thm)],[39])).
% 0.18/0.36  tff(41,plain,
% 0.18/0.36      (c = an_isomorphism(d2)),
% 0.18/0.36      inference(transitivity,[status(thm)],[37, 40])).
% 0.18/0.36  tff(42,plain,
% 0.18/0.36      (an_isomorphism(d1) = an_isomorphism(a)),
% 0.18/0.36      inference(monotonicity,[status(thm)],[3])).
% 0.18/0.36  tff(43,plain,
% 0.18/0.36      (an_isomorphism(a) = an_isomorphism(d1)),
% 0.18/0.36      inference(symmetry,[status(thm)],[42])).
% 0.18/0.36  tff(44,plain,
% 0.18/0.36      (c = an_isomorphism(d1)),
% 0.18/0.36      inference(transitivity,[status(thm)],[37, 43])).
% 0.18/0.36  tff(45,plain,
% 0.18/0.36      (product(g2, c, c, c) <=> product(g2, an_isomorphism(d1), an_isomorphism(d2), an_isomorphism(d3))),
% 0.18/0.36      inference(monotonicity,[status(thm)],[44, 41, 38])).
% 0.18/0.36  tff(46,plain,
% 0.18/0.36      (product(g2, an_isomorphism(d1), an_isomorphism(d2), an_isomorphism(d3)) <=> product(g2, c, c, c)),
% 0.18/0.36      inference(symmetry,[status(thm)],[45])).
% 0.18/0.36  tff(47,plain,
% 0.18/0.36      ((~product(g2, an_isomorphism(d1), an_isomorphism(d2), an_isomorphism(d3))) <=> (~product(g2, c, c, c))),
% 0.18/0.36      inference(monotonicity,[status(thm)],[46])).
% 0.18/0.36  tff(48,plain,
% 0.18/0.36      ((~product(g2, an_isomorphism(d1), an_isomorphism(d2), an_isomorphism(d3))) <=> (~product(g2, an_isomorphism(d1), an_isomorphism(d2), an_isomorphism(d3)))),
% 0.18/0.36      inference(rewrite,[status(thm)],[])).
% 0.18/0.36  tff(49,axiom,(~product(g2, an_isomorphism(d1), an_isomorphism(d2), an_isomorphism(d3))), file('/export/starexec/sandbox2/benchmark/theBenchmark.p','prove_product_holds_in_group2')).
% 0.18/0.36  tff(50,plain,
% 0.18/0.36      (~product(g2, an_isomorphism(d1), an_isomorphism(d2), an_isomorphism(d3))),
% 0.18/0.36      inference(modus_ponens,[status(thm)],[49, 48])).
% 0.18/0.36  tff(51,plain,
% 0.18/0.36      (~product(g2, c, c, c)),
% 0.18/0.36      inference(modus_ponens,[status(thm)],[50, 47])).
% 0.18/0.36  tff(52,plain,
% 0.18/0.36      (product(g2, c, c, c) <=> product(g2, c, c, c)),
% 0.18/0.36      inference(rewrite,[status(thm)],[])).
% 0.18/0.36  tff(53,axiom,(product(g2, c, c, c)), file('/export/starexec/sandbox2/benchmark/theBenchmark.p','c_times_c_is_c')).
% 0.18/0.36  tff(54,plain,
% 0.18/0.36      (product(g2, c, c, c)),
% 0.18/0.36      inference(modus_ponens,[status(thm)],[53, 52])).
% 0.18/0.36  tff(55,plain,
% 0.18/0.36      ($false),
% 0.18/0.36      inference(unit_resolution,[status(thm)],[54, 51])).
% 0.18/0.36  tff(56,plain,((~(d2 = a)) | (~(d1 = a))), inference(lemma,lemma(discharge,[]))).
% 0.18/0.37  tff(57,plain,
% 0.18/0.37      (~(d2 = a)),
% 0.18/0.37      inference(unit_resolution,[status(thm)],[56, 3])).
% 0.18/0.37  tff(58,plain,
% 0.18/0.37      (group_member(d2, g1) <=> group_member(d2, g1)),
% 0.18/0.37      inference(rewrite,[status(thm)],[])).
% 0.18/0.37  tff(59,axiom,(group_member(d2, g1)), file('/export/starexec/sandbox2/benchmark/theBenchmark.p','d2_member_of_group1')).
% 0.18/0.37  tff(60,plain,
% 0.18/0.37      (group_member(d2, g1)),
% 0.18/0.37      inference(modus_ponens,[status(thm)],[59, 58])).
% 0.18/0.37  tff(61,plain,
% 0.18/0.37      (^[X: $i] : refl(((X = b) | (X = a) | (~group_member(X, g1))) <=> ((X = b) | (X = a) | (~group_member(X, g1))))),
% 0.18/0.37      inference(bind,[status(th)],[])).
% 0.18/0.37  tff(62,plain,
% 0.18/0.37      (![X: $i] : ((X = b) | (X = a) | (~group_member(X, g1))) <=> ![X: $i] : ((X = b) | (X = a) | (~group_member(X, g1)))),
% 0.18/0.37      inference(quant_intro,[status(thm)],[61])).
% 0.18/0.37  tff(63,plain,
% 0.18/0.37      (![X: $i] : ((X = b) | (X = a) | (~group_member(X, g1))) <=> ![X: $i] : ((X = b) | (X = a) | (~group_member(X, g1)))),
% 0.18/0.37      inference(rewrite,[status(thm)],[])).
% 0.18/0.37  tff(64,plain,
% 0.18/0.37      (^[X: $i] : rewrite((((~group_member(X, g1)) | (X = a)) | (X = b)) <=> ((X = b) | (X = a) | (~group_member(X, g1))))),
% 0.18/0.37      inference(bind,[status(th)],[])).
% 0.18/0.37  tff(65,plain,
% 0.18/0.37      (![X: $i] : (((~group_member(X, g1)) | (X = a)) | (X = b)) <=> ![X: $i] : ((X = b) | (X = a) | (~group_member(X, g1)))),
% 0.18/0.37      inference(quant_intro,[status(thm)],[64])).
% 0.18/0.37  tff(66,axiom,(![X: $i] : (((~group_member(X, g1)) | (X = a)) | (X = b))), file('/export/starexec/sandbox2/benchmark/theBenchmark.p','a_and_b_only_members_of_group1')).
% 0.18/0.37  tff(67,plain,
% 0.18/0.37      (![X: $i] : ((X = b) | (X = a) | (~group_member(X, g1)))),
% 0.18/0.37      inference(modus_ponens,[status(thm)],[66, 65])).
% 0.18/0.37  tff(68,plain,
% 0.18/0.37      (![X: $i] : ((X = b) | (X = a) | (~group_member(X, g1)))),
% 0.18/0.37      inference(modus_ponens,[status(thm)],[67, 63])).
% 0.18/0.37  tff(69,plain,(
% 0.18/0.37      ![X: $i] : ((X = b) | (X = a) | (~group_member(X, g1)))),
% 0.18/0.37      inference(skolemize,[status(sab)],[68])).
% 0.18/0.37  tff(70,plain,
% 0.18/0.37      (![X: $i] : ((X = b) | (X = a) | (~group_member(X, g1)))),
% 0.18/0.37      inference(modus_ponens,[status(thm)],[69, 62])).
% 0.18/0.37  tff(71,plain,
% 0.18/0.37      (((~![X: $i] : ((X = b) | (X = a) | (~group_member(X, g1)))) | ((d2 = b) | (d2 = a) | (~group_member(d2, g1)))) <=> ((~![X: $i] : ((X = b) | (X = a) | (~group_member(X, g1)))) | (d2 = b) | (d2 = a) | (~group_member(d2, g1)))),
% 0.18/0.37      inference(rewrite,[status(thm)],[])).
% 0.18/0.37  tff(72,plain,
% 0.18/0.37      ((~![X: $i] : ((X = b) | (X = a) | (~group_member(X, g1)))) | ((d2 = b) | (d2 = a) | (~group_member(d2, g1)))),
% 0.18/0.37      inference(quant_inst,[status(thm)],[])).
% 0.18/0.37  tff(73,plain,
% 0.18/0.37      ((~![X: $i] : ((X = b) | (X = a) | (~group_member(X, g1)))) | (d2 = b) | (d2 = a) | (~group_member(d2, g1))),
% 0.18/0.37      inference(modus_ponens,[status(thm)],[72, 71])).
% 0.18/0.37  tff(74,plain,
% 0.18/0.37      ((d2 = b) | (d2 = a)),
% 0.18/0.37      inference(unit_resolution,[status(thm)],[73, 70, 60])).
% 0.18/0.37  tff(75,plain,
% 0.18/0.37      (d2 = b),
% 0.18/0.37      inference(unit_resolution,[status(thm)],[74, 57])).
% 0.18/0.37  tff(76,plain,
% 0.18/0.37      (b = d2),
% 0.18/0.37      inference(symmetry,[status(thm)],[75])).
% 0.18/0.37  tff(77,plain,
% 0.18/0.37      (product(g1, a, b, d3) <=> product(g1, d1, d2, d3)),
% 0.18/0.37      inference(monotonicity,[status(thm)],[6, 76])).
% 0.18/0.37  tff(78,plain,
% 0.18/0.37      (product(g1, d1, d2, d3) <=> product(g1, a, b, d3)),
% 0.18/0.37      inference(symmetry,[status(thm)],[77])).
% 0.18/0.37  tff(79,plain,
% 0.18/0.37      (product(g1, a, b, d3)),
% 0.18/0.37      inference(modus_ponens,[status(thm)],[11, 78])).
% 0.18/0.37  tff(80,plain,
% 0.18/0.37      (product(g1, a, b, b) <=> product(g1, a, b, b)),
% 0.18/0.37      inference(rewrite,[status(thm)],[])).
% 0.18/0.37  tff(81,axiom,(product(g1, a, b, b)), file('/export/starexec/sandbox2/benchmark/theBenchmark.p','a_times_b_is_b')).
% 0.18/0.37  tff(82,plain,
% 0.18/0.37      (product(g1, a, b, b)),
% 0.18/0.37      inference(modus_ponens,[status(thm)],[81, 80])).
% 0.18/0.37  tff(83,plain,
% 0.18/0.37      (((~![Xg: $i, W: $i, Z: $i, Y: $i, X: $i] : ((W = Z) | (~product(Xg, X, Y, W)) | (~product(Xg, X, Y, Z)))) | ((~product(g1, a, b, d3)) | (b = d3) | (~product(g1, a, b, b)))) <=> ((~![Xg: $i, W: $i, Z: $i, Y: $i, X: $i] : ((W = Z) | (~product(Xg, X, Y, W)) | (~product(Xg, X, Y, Z)))) | (~product(g1, a, b, d3)) | (b = d3) | (~product(g1, a, b, b)))),
% 0.18/0.37      inference(rewrite,[status(thm)],[])).
% 0.18/0.37  tff(84,plain,
% 0.18/0.37      (((b = d3) | (~product(g1, a, b, b)) | (~product(g1, a, b, d3))) <=> ((~product(g1, a, b, d3)) | (b = d3) | (~product(g1, a, b, b)))),
% 0.18/0.37      inference(rewrite,[status(thm)],[])).
% 0.18/0.37  tff(85,plain,
% 0.18/0.37      (((~![Xg: $i, W: $i, Z: $i, Y: $i, X: $i] : ((W = Z) | (~product(Xg, X, Y, W)) | (~product(Xg, X, Y, Z)))) | ((b = d3) | (~product(g1, a, b, b)) | (~product(g1, a, b, d3)))) <=> ((~![Xg: $i, W: $i, Z: $i, Y: $i, X: $i] : ((W = Z) | (~product(Xg, X, Y, W)) | (~product(Xg, X, Y, Z)))) | ((~product(g1, a, b, d3)) | (b = d3) | (~product(g1, a, b, b))))),
% 0.18/0.37      inference(monotonicity,[status(thm)],[84])).
% 0.18/0.37  tff(86,plain,
% 0.18/0.37      (((~![Xg: $i, W: $i, Z: $i, Y: $i, X: $i] : ((W = Z) | (~product(Xg, X, Y, W)) | (~product(Xg, X, Y, Z)))) | ((b = d3) | (~product(g1, a, b, b)) | (~product(g1, a, b, d3)))) <=> ((~![Xg: $i, W: $i, Z: $i, Y: $i, X: $i] : ((W = Z) | (~product(Xg, X, Y, W)) | (~product(Xg, X, Y, Z)))) | (~product(g1, a, b, d3)) | (b = d3) | (~product(g1, a, b, b)))),
% 0.18/0.37      inference(transitivity,[status(thm)],[85, 83])).
% 0.18/0.37  tff(87,plain,
% 0.18/0.37      ((~![Xg: $i, W: $i, Z: $i, Y: $i, X: $i] : ((W = Z) | (~product(Xg, X, Y, W)) | (~product(Xg, X, Y, Z)))) | ((b = d3) | (~product(g1, a, b, b)) | (~product(g1, a, b, d3)))),
% 0.18/0.37      inference(quant_inst,[status(thm)],[])).
% 0.18/0.37  tff(88,plain,
% 0.18/0.37      ((~![Xg: $i, W: $i, Z: $i, Y: $i, X: $i] : ((W = Z) | (~product(Xg, X, Y, W)) | (~product(Xg, X, Y, Z)))) | (~product(g1, a, b, d3)) | (b = d3) | (~product(g1, a, b, b))),
% 0.18/0.37      inference(modus_ponens,[status(thm)],[87, 86])).
% 0.18/0.37  tff(89,plain,
% 0.18/0.37      ((~product(g1, a, b, d3)) | (b = d3)),
% 0.18/0.37      inference(unit_resolution,[status(thm)],[88, 25, 82])).
% 0.18/0.37  tff(90,plain,
% 0.18/0.37      (b = d3),
% 0.18/0.37      inference(unit_resolution,[status(thm)],[89, 79])).
% 0.18/0.37  tff(91,plain,
% 0.18/0.37      (d3 = b),
% 0.18/0.37      inference(symmetry,[status(thm)],[90])).
% 0.18/0.37  tff(92,plain,
% 0.18/0.37      (an_isomorphism(d3) = an_isomorphism(b)),
% 0.18/0.37      inference(monotonicity,[status(thm)],[91])).
% 0.18/0.37  tff(93,plain,
% 0.18/0.37      (an_isomorphism(b) = an_isomorphism(d3)),
% 0.18/0.37      inference(symmetry,[status(thm)],[92])).
% 0.18/0.37  tff(94,plain,
% 0.18/0.37      ((an_isomorphism(b) = d) <=> (an_isomorphism(b) = d)),
% 0.18/0.37      inference(rewrite,[status(thm)],[])).
% 0.18/0.37  tff(95,axiom,(an_isomorphism(b) = d), file('/export/starexec/sandbox2/benchmark/theBenchmark.p','b_maps_to_d')).
% 0.18/0.37  tff(96,plain,
% 0.18/0.37      (an_isomorphism(b) = d),
% 0.18/0.37      inference(modus_ponens,[status(thm)],[95, 94])).
% 0.18/0.37  tff(97,plain,
% 0.18/0.37      (d = an_isomorphism(b)),
% 0.18/0.37      inference(symmetry,[status(thm)],[96])).
% 0.18/0.37  tff(98,plain,
% 0.18/0.37      (d = an_isomorphism(d3)),
% 0.18/0.37      inference(transitivity,[status(thm)],[97, 93])).
% 0.18/0.37  tff(99,plain,
% 0.18/0.37      (an_isomorphism(d2) = an_isomorphism(b)),
% 0.18/0.37      inference(monotonicity,[status(thm)],[75])).
% 0.18/0.37  tff(100,plain,
% 0.18/0.37      (an_isomorphism(b) = an_isomorphism(d2)),
% 0.18/0.37      inference(symmetry,[status(thm)],[99])).
% 0.18/0.37  tff(101,plain,
% 0.18/0.37      (d = an_isomorphism(d2)),
% 0.18/0.37      inference(transitivity,[status(thm)],[97, 100])).
% 0.18/0.37  tff(102,plain,
% 0.18/0.37      (product(g2, c, d, d) <=> product(g2, an_isomorphism(d1), an_isomorphism(d2), an_isomorphism(d3))),
% 0.18/0.37      inference(monotonicity,[status(thm)],[44, 101, 98])).
% 0.18/0.37  tff(103,plain,
% 0.18/0.37      (product(g2, an_isomorphism(d1), an_isomorphism(d2), an_isomorphism(d3)) <=> product(g2, c, d, d)),
% 0.18/0.37      inference(symmetry,[status(thm)],[102])).
% 0.18/0.37  tff(104,plain,
% 0.18/0.37      ((~product(g2, an_isomorphism(d1), an_isomorphism(d2), an_isomorphism(d3))) <=> (~product(g2, c, d, d))),
% 0.18/0.37      inference(monotonicity,[status(thm)],[103])).
% 0.18/0.37  tff(105,plain,
% 0.18/0.37      (~product(g2, c, d, d)),
% 0.18/0.37      inference(modus_ponens,[status(thm)],[50, 104])).
% 0.18/0.37  tff(106,plain,
% 0.18/0.37      (product(g2, c, d, d) <=> product(g2, c, d, d)),
% 0.18/0.37      inference(rewrite,[status(thm)],[])).
% 0.18/0.37  tff(107,axiom,(product(g2, c, d, d)), file('/export/starexec/sandbox2/benchmark/theBenchmark.p','c_times_d_is_d')).
% 0.18/0.37  tff(108,plain,
% 0.18/0.37      (product(g2, c, d, d)),
% 0.18/0.37      inference(modus_ponens,[status(thm)],[107, 106])).
% 0.18/0.37  tff(109,plain,
% 0.18/0.37      ($false),
% 0.18/0.37      inference(unit_resolution,[status(thm)],[108, 105])).
% 0.18/0.37  tff(110,plain,(~(d1 = a)), inference(lemma,lemma(discharge,[]))).
% 0.18/0.37  tff(111,plain,
% 0.18/0.37      (group_member(d1, g1) <=> group_member(d1, g1)),
% 0.18/0.37      inference(rewrite,[status(thm)],[])).
% 0.18/0.37  tff(112,axiom,(group_member(d1, g1)), file('/export/starexec/sandbox2/benchmark/theBenchmark.p','d1_member_of_group1')).
% 0.18/0.37  tff(113,plain,
% 0.18/0.37      (group_member(d1, g1)),
% 0.18/0.37      inference(modus_ponens,[status(thm)],[112, 111])).
% 0.18/0.37  tff(114,plain,
% 0.18/0.37      (((~![X: $i] : ((X = b) | (X = a) | (~group_member(X, g1)))) | ((d1 = b) | (d1 = a) | (~group_member(d1, g1)))) <=> ((~![X: $i] : ((X = b) | (X = a) | (~group_member(X, g1)))) | (d1 = b) | (d1 = a) | (~group_member(d1, g1)))),
% 0.18/0.37      inference(rewrite,[status(thm)],[])).
% 0.18/0.37  tff(115,plain,
% 0.18/0.37      ((~![X: $i] : ((X = b) | (X = a) | (~group_member(X, g1)))) | ((d1 = b) | (d1 = a) | (~group_member(d1, g1)))),
% 0.18/0.37      inference(quant_inst,[status(thm)],[])).
% 0.18/0.37  tff(116,plain,
% 0.18/0.37      ((~![X: $i] : ((X = b) | (X = a) | (~group_member(X, g1)))) | (d1 = b) | (d1 = a) | (~group_member(d1, g1))),
% 0.18/0.37      inference(modus_ponens,[status(thm)],[115, 114])).
% 0.18/0.37  tff(117,plain,
% 0.18/0.37      ((d1 = b) | (d1 = a)),
% 0.18/0.37      inference(unit_resolution,[status(thm)],[116, 70, 113])).
% 0.18/0.37  tff(118,plain,
% 0.18/0.37      (d1 = b),
% 0.18/0.37      inference(unit_resolution,[status(thm)],[117, 110])).
% 0.18/0.37  tff(119,plain,
% 0.18/0.37      (b = d1),
% 0.18/0.37      inference(symmetry,[status(thm)],[118])).
% 0.18/0.37  tff(120,plain,
% 0.18/0.37      (product(g1, b, b, d3) <=> product(g1, d1, d2, d3)),
% 0.18/0.37      inference(monotonicity,[status(thm)],[119, 2])).
% 0.18/0.37  tff(121,plain,
% 0.18/0.37      (product(g1, d1, d2, d3) <=> product(g1, b, b, d3)),
% 0.18/0.37      inference(symmetry,[status(thm)],[120])).
% 0.18/0.37  tff(122,plain,
% 0.18/0.37      (product(g1, b, b, d3)),
% 0.18/0.37      inference(modus_ponens,[status(thm)],[11, 121])).
% 0.18/0.37  tff(123,plain,
% 0.18/0.37      (product(g1, b, b, a) <=> product(g1, b, b, a)),
% 0.18/0.37      inference(rewrite,[status(thm)],[])).
% 0.18/0.37  tff(124,axiom,(product(g1, b, b, a)), file('/export/starexec/sandbox2/benchmark/theBenchmark.p','b_times_b_is_a')).
% 0.18/0.37  tff(125,plain,
% 0.18/0.37      (product(g1, b, b, a)),
% 0.18/0.37      inference(modus_ponens,[status(thm)],[124, 123])).
% 0.18/0.37  tff(126,plain,
% 0.18/0.37      (((~![Xg: $i, W: $i, Z: $i, Y: $i, X: $i] : ((W = Z) | (~product(Xg, X, Y, W)) | (~product(Xg, X, Y, Z)))) | ((a = d3) | (~product(g1, b, b, d3)) | (~product(g1, b, b, a)))) <=> ((~![Xg: $i, W: $i, Z: $i, Y: $i, X: $i] : ((W = Z) | (~product(Xg, X, Y, W)) | (~product(Xg, X, Y, Z)))) | (a = d3) | (~product(g1, b, b, d3)) | (~product(g1, b, b, a)))),
% 0.18/0.37      inference(rewrite,[status(thm)],[])).
% 0.18/0.37  tff(127,plain,
% 0.18/0.37      (((a = d3) | (~product(g1, b, b, a)) | (~product(g1, b, b, d3))) <=> ((a = d3) | (~product(g1, b, b, d3)) | (~product(g1, b, b, a)))),
% 0.18/0.37      inference(rewrite,[status(thm)],[])).
% 0.18/0.37  tff(128,plain,
% 0.18/0.37      (((~![Xg: $i, W: $i, Z: $i, Y: $i, X: $i] : ((W = Z) | (~product(Xg, X, Y, W)) | (~product(Xg, X, Y, Z)))) | ((a = d3) | (~product(g1, b, b, a)) | (~product(g1, b, b, d3)))) <=> ((~![Xg: $i, W: $i, Z: $i, Y: $i, X: $i] : ((W = Z) | (~product(Xg, X, Y, W)) | (~product(Xg, X, Y, Z)))) | ((a = d3) | (~product(g1, b, b, d3)) | (~product(g1, b, b, a))))),
% 0.18/0.37      inference(monotonicity,[status(thm)],[127])).
% 0.18/0.37  tff(129,plain,
% 0.18/0.37      (((~![Xg: $i, W: $i, Z: $i, Y: $i, X: $i] : ((W = Z) | (~product(Xg, X, Y, W)) | (~product(Xg, X, Y, Z)))) | ((a = d3) | (~product(g1, b, b, a)) | (~product(g1, b, b, d3)))) <=> ((~![Xg: $i, W: $i, Z: $i, Y: $i, X: $i] : ((W = Z) | (~product(Xg, X, Y, W)) | (~product(Xg, X, Y, Z)))) | (a = d3) | (~product(g1, b, b, d3)) | (~product(g1, b, b, a)))),
% 0.18/0.37      inference(transitivity,[status(thm)],[128, 126])).
% 0.18/0.37  tff(130,plain,
% 0.18/0.37      ((~![Xg: $i, W: $i, Z: $i, Y: $i, X: $i] : ((W = Z) | (~product(Xg, X, Y, W)) | (~product(Xg, X, Y, Z)))) | ((a = d3) | (~product(g1, b, b, a)) | (~product(g1, b, b, d3)))),
% 0.18/0.37      inference(quant_inst,[status(thm)],[])).
% 0.18/0.37  tff(131,plain,
% 0.18/0.37      ((~![Xg: $i, W: $i, Z: $i, Y: $i, X: $i] : ((W = Z) | (~product(Xg, X, Y, W)) | (~product(Xg, X, Y, Z)))) | (a = d3) | (~product(g1, b, b, d3)) | (~product(g1, b, b, a))),
% 0.18/0.37      inference(modus_ponens,[status(thm)],[130, 129])).
% 0.18/0.37  tff(132,plain,
% 0.18/0.37      ((a = d3) | (~product(g1, b, b, d3))),
% 0.18/0.37      inference(unit_resolution,[status(thm)],[131, 25, 125])).
% 0.18/0.37  tff(133,plain,
% 0.18/0.37      (a = d3),
% 0.18/0.37      inference(unit_resolution,[status(thm)],[132, 122])).
% 0.18/0.37  tff(134,plain,
% 0.18/0.37      (d3 = a),
% 0.18/0.37      inference(symmetry,[status(thm)],[133])).
% 0.18/0.37  tff(135,plain,
% 0.18/0.37      (an_isomorphism(d3) = an_isomorphism(a)),
% 0.18/0.37      inference(monotonicity,[status(thm)],[134])).
% 0.18/0.37  tff(136,plain,
% 0.18/0.37      (an_isomorphism(a) = an_isomorphism(d3)),
% 0.18/0.37      inference(symmetry,[status(thm)],[135])).
% 0.18/0.37  tff(137,plain,
% 0.18/0.37      (c = an_isomorphism(d3)),
% 0.18/0.38      inference(transitivity,[status(thm)],[37, 136])).
% 0.18/0.38  tff(138,plain,
% 0.18/0.38      (an_isomorphism(d2) = an_isomorphism(b)),
% 0.18/0.38      inference(monotonicity,[status(thm)],[1])).
% 0.18/0.38  tff(139,plain,
% 0.18/0.38      (an_isomorphism(b) = an_isomorphism(d2)),
% 0.18/0.38      inference(symmetry,[status(thm)],[138])).
% 0.18/0.38  tff(140,plain,
% 0.18/0.38      (d = an_isomorphism(d2)),
% 0.18/0.38      inference(transitivity,[status(thm)],[97, 139])).
% 0.18/0.38  tff(141,plain,
% 0.18/0.38      (an_isomorphism(d1) = an_isomorphism(b)),
% 0.18/0.38      inference(monotonicity,[status(thm)],[118])).
% 0.18/0.38  tff(142,plain,
% 0.18/0.38      (an_isomorphism(b) = an_isomorphism(d1)),
% 0.18/0.38      inference(symmetry,[status(thm)],[141])).
% 0.18/0.38  tff(143,plain,
% 0.18/0.38      (d = an_isomorphism(d1)),
% 0.18/0.38      inference(transitivity,[status(thm)],[97, 142])).
% 0.18/0.38  tff(144,plain,
% 0.18/0.38      (product(g2, d, d, c) <=> product(g2, an_isomorphism(d1), an_isomorphism(d2), an_isomorphism(d3))),
% 0.18/0.38      inference(monotonicity,[status(thm)],[143, 140, 137])).
% 0.18/0.38  tff(145,plain,
% 0.18/0.38      (product(g2, an_isomorphism(d1), an_isomorphism(d2), an_isomorphism(d3)) <=> product(g2, d, d, c)),
% 0.18/0.38      inference(symmetry,[status(thm)],[144])).
% 0.18/0.38  tff(146,plain,
% 0.18/0.38      ((~product(g2, an_isomorphism(d1), an_isomorphism(d2), an_isomorphism(d3))) <=> (~product(g2, d, d, c))),
% 0.18/0.38      inference(monotonicity,[status(thm)],[145])).
% 0.18/0.38  tff(147,plain,
% 0.18/0.38      (~product(g2, d, d, c)),
% 0.18/0.38      inference(modus_ponens,[status(thm)],[50, 146])).
% 0.18/0.38  tff(148,plain,
% 0.18/0.38      (product(g2, d, d, c) <=> product(g2, d, d, c)),
% 0.18/0.38      inference(rewrite,[status(thm)],[])).
% 0.18/0.38  tff(149,axiom,(product(g2, d, d, c)), file('/export/starexec/sandbox2/benchmark/theBenchmark.p','d_times_d_is_c')).
% 0.18/0.38  tff(150,plain,
% 0.18/0.38      (product(g2, d, d, c)),
% 0.18/0.38      inference(modus_ponens,[status(thm)],[149, 148])).
% 0.18/0.38  tff(151,plain,
% 0.18/0.38      ($false),
% 0.18/0.38      inference(unit_resolution,[status(thm)],[150, 147])).
% 0.18/0.38  tff(152,plain,(~(d2 = b)), inference(lemma,lemma(discharge,[]))).
% 0.18/0.38  tff(153,plain,
% 0.18/0.38      (d2 = a),
% 0.18/0.38      inference(unit_resolution,[status(thm)],[74, 152])).
% 0.18/0.38  tff(154,plain,
% 0.18/0.38      (a = d2),
% 0.18/0.38      inference(symmetry,[status(thm)],[153])).
% 0.18/0.38  tff(155,plain,
% 0.18/0.38      (product(g1, b, a, d3) <=> product(g1, d1, d2, d3)),
% 0.18/0.38      inference(monotonicity,[status(thm)],[119, 154])).
% 0.18/0.38  tff(156,plain,
% 0.18/0.38      (product(g1, d1, d2, d3) <=> product(g1, b, a, d3)),
% 0.18/0.38      inference(symmetry,[status(thm)],[155])).
% 0.18/0.38  tff(157,plain,
% 0.18/0.38      (product(g1, b, a, d3)),
% 0.18/0.38      inference(modus_ponens,[status(thm)],[11, 156])).
% 0.18/0.38  tff(158,plain,
% 0.18/0.38      (product(g1, b, a, b) <=> product(g1, b, a, b)),
% 0.18/0.38      inference(rewrite,[status(thm)],[])).
% 0.18/0.38  tff(159,axiom,(product(g1, b, a, b)), file('/export/starexec/sandbox2/benchmark/theBenchmark.p','b_times_a_is_b')).
% 0.18/0.38  tff(160,plain,
% 0.18/0.38      (product(g1, b, a, b)),
% 0.18/0.38      inference(modus_ponens,[status(thm)],[159, 158])).
% 0.18/0.38  tff(161,plain,
% 0.18/0.38      (((~![Xg: $i, W: $i, Z: $i, Y: $i, X: $i] : ((W = Z) | (~product(Xg, X, Y, W)) | (~product(Xg, X, Y, Z)))) | ((b = d3) | (~product(g1, b, a, d3)) | (~product(g1, b, a, b)))) <=> ((~![Xg: $i, W: $i, Z: $i, Y: $i, X: $i] : ((W = Z) | (~product(Xg, X, Y, W)) | (~product(Xg, X, Y, Z)))) | (b = d3) | (~product(g1, b, a, d3)) | (~product(g1, b, a, b)))),
% 0.18/0.38      inference(rewrite,[status(thm)],[])).
% 0.18/0.38  tff(162,plain,
% 0.18/0.38      (((b = d3) | (~product(g1, b, a, b)) | (~product(g1, b, a, d3))) <=> ((b = d3) | (~product(g1, b, a, d3)) | (~product(g1, b, a, b)))),
% 0.18/0.38      inference(rewrite,[status(thm)],[])).
% 0.18/0.38  tff(163,plain,
% 0.18/0.38      (((~![Xg: $i, W: $i, Z: $i, Y: $i, X: $i] : ((W = Z) | (~product(Xg, X, Y, W)) | (~product(Xg, X, Y, Z)))) | ((b = d3) | (~product(g1, b, a, b)) | (~product(g1, b, a, d3)))) <=> ((~![Xg: $i, W: $i, Z: $i, Y: $i, X: $i] : ((W = Z) | (~product(Xg, X, Y, W)) | (~product(Xg, X, Y, Z)))) | ((b = d3) | (~product(g1, b, a, d3)) | (~product(g1, b, a, b))))),
% 0.18/0.38      inference(monotonicity,[status(thm)],[162])).
% 0.18/0.38  tff(164,plain,
% 0.18/0.38      (((~![Xg: $i, W: $i, Z: $i, Y: $i, X: $i] : ((W = Z) | (~product(Xg, X, Y, W)) | (~product(Xg, X, Y, Z)))) | ((b = d3) | (~product(g1, b, a, b)) | (~product(g1, b, a, d3)))) <=> ((~![Xg: $i, W: $i, Z: $i, Y: $i, X: $i] : ((W = Z) | (~product(Xg, X, Y, W)) | (~product(Xg, X, Y, Z)))) | (b = d3) | (~product(g1, b, a, d3)) | (~product(g1, b, a, b)))),
% 0.18/0.38      inference(transitivity,[status(thm)],[163, 161])).
% 0.18/0.38  tff(165,plain,
% 0.18/0.38      ((~![Xg: $i, W: $i, Z: $i, Y: $i, X: $i] : ((W = Z) | (~product(Xg, X, Y, W)) | (~product(Xg, X, Y, Z)))) | ((b = d3) | (~product(g1, b, a, b)) | (~product(g1, b, a, d3)))),
% 0.18/0.38      inference(quant_inst,[status(thm)],[])).
% 0.18/0.38  tff(166,plain,
% 0.18/0.38      ((~![Xg: $i, W: $i, Z: $i, Y: $i, X: $i] : ((W = Z) | (~product(Xg, X, Y, W)) | (~product(Xg, X, Y, Z)))) | (b = d3) | (~product(g1, b, a, d3)) | (~product(g1, b, a, b))),
% 0.18/0.38      inference(modus_ponens,[status(thm)],[165, 164])).
% 0.18/0.38  tff(167,plain,
% 0.18/0.38      ((b = d3) | (~product(g1, b, a, d3))),
% 0.18/0.38      inference(unit_resolution,[status(thm)],[166, 25, 160])).
% 0.18/0.38  tff(168,plain,
% 0.18/0.38      (b = d3),
% 0.18/0.38      inference(unit_resolution,[status(thm)],[167, 157])).
% 0.18/0.38  tff(169,plain,
% 0.18/0.38      (d3 = b),
% 0.18/0.38      inference(symmetry,[status(thm)],[168])).
% 0.18/0.38  tff(170,plain,
% 0.18/0.38      (an_isomorphism(d3) = an_isomorphism(b)),
% 0.18/0.38      inference(monotonicity,[status(thm)],[169])).
% 0.18/0.38  tff(171,plain,
% 0.18/0.38      (an_isomorphism(b) = an_isomorphism(d3)),
% 0.18/0.38      inference(symmetry,[status(thm)],[170])).
% 0.18/0.38  tff(172,plain,
% 0.18/0.38      (d = an_isomorphism(d3)),
% 0.18/0.38      inference(transitivity,[status(thm)],[97, 171])).
% 0.18/0.38  tff(173,plain,
% 0.18/0.38      (an_isomorphism(d2) = an_isomorphism(a)),
% 0.18/0.38      inference(monotonicity,[status(thm)],[153])).
% 0.18/0.38  tff(174,plain,
% 0.18/0.38      (an_isomorphism(a) = an_isomorphism(d2)),
% 0.18/0.38      inference(symmetry,[status(thm)],[173])).
% 0.18/0.38  tff(175,plain,
% 0.18/0.38      (c = an_isomorphism(d2)),
% 0.18/0.38      inference(transitivity,[status(thm)],[37, 174])).
% 0.18/0.38  tff(176,plain,
% 0.18/0.38      (product(g2, d, c, d) <=> product(g2, an_isomorphism(d1), an_isomorphism(d2), an_isomorphism(d3))),
% 0.18/0.38      inference(monotonicity,[status(thm)],[143, 175, 172])).
% 0.18/0.38  tff(177,plain,
% 0.18/0.38      (product(g2, an_isomorphism(d1), an_isomorphism(d2), an_isomorphism(d3)) <=> product(g2, d, c, d)),
% 0.18/0.38      inference(symmetry,[status(thm)],[176])).
% 0.18/0.38  tff(178,plain,
% 0.18/0.38      ((~product(g2, an_isomorphism(d1), an_isomorphism(d2), an_isomorphism(d3))) <=> (~product(g2, d, c, d))),
% 0.18/0.38      inference(monotonicity,[status(thm)],[177])).
% 0.18/0.38  tff(179,plain,
% 0.18/0.38      (~product(g2, d, c, d)),
% 0.18/0.38      inference(modus_ponens,[status(thm)],[50, 178])).
% 0.18/0.38  tff(180,plain,
% 0.18/0.38      (product(g2, d, c, d) <=> product(g2, d, c, d)),
% 0.18/0.38      inference(rewrite,[status(thm)],[])).
% 0.18/0.38  tff(181,axiom,(product(g2, d, c, d)), file('/export/starexec/sandbox2/benchmark/theBenchmark.p','d_times_c_is_d')).
% 0.18/0.38  tff(182,plain,
% 0.18/0.38      (product(g2, d, c, d)),
% 0.18/0.38      inference(modus_ponens,[status(thm)],[181, 180])).
% 0.18/0.38  tff(183,plain,
% 0.18/0.38      ($false),
% 0.18/0.38      inference(unit_resolution,[status(thm)],[182, 179])).
% 0.18/0.38  % SZS output end Proof
% 0.18/0.38  % E exiting
%------------------------------------------------------------------------------