TSTP Solution File: ARI672_1 by Z3---4.8.9.0

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : Z3---4.8.9.0
% Problem  : ARI672_1 : TPTP v8.1.0. Released v6.3.0.
% Transfm  : none
% Format   : tptp
% Command  : z3_tptp -proof -model -t:%d -file:%s

% Computer : n011.cluster.edu
% Model    : x86_64 x86_64
% CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 2.10GHz
% Memory   : 8042.1875MB
% OS       : Linux 3.10.0-693.el7.x86_64
% CPULimit : 300s
% WCLimit  : 300s
% DateTime : Tue Sep  6 17:02:32 EDT 2022

% Result   : Theorem 0.13s 0.39s
% Output   : Proof 0.13s
% Verified : 
% SZS Type : -

% Comments : 
%------------------------------------------------------------------------------
%----WARNING: Could not form TPTP format derivation
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.12/0.13  % Problem  : ARI672_1 : TPTP v8.1.0. Released v6.3.0.
% 0.12/0.13  % Command  : z3_tptp -proof -model -t:%d -file:%s
% 0.13/0.35  % Computer : n011.cluster.edu
% 0.13/0.35  % Model    : x86_64 x86_64
% 0.13/0.35  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.13/0.35  % Memory   : 8042.1875MB
% 0.13/0.35  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.13/0.35  % CPULimit : 300
% 0.13/0.35  % WCLimit  : 300
% 0.13/0.35  % DateTime : Tue Aug 30 01:28:10 EDT 2022
% 0.13/0.35  % CPUTime  : 
% 0.13/0.35  Z3tptp [4.8.9.0] (c) 2006-20**. Microsoft Corp.
% 0.13/0.35  Usage: tptp [options] [-file:]file
% 0.13/0.35    -h, -?       prints this message.
% 0.13/0.35    -smt2        print SMT-LIB2 benchmark.
% 0.13/0.35    -m, -model   generate model.
% 0.13/0.35    -p, -proof   generate proof.
% 0.13/0.35    -c, -core    generate unsat core of named formulas.
% 0.13/0.35    -st, -statistics display statistics.
% 0.13/0.35    -t:timeout   set timeout (in second).
% 0.13/0.35    -smt2status  display status in smt2 format instead of SZS.
% 0.13/0.35    -check_status check the status produced by Z3 against annotation in benchmark.
% 0.13/0.35    -<param>:<value> configuration parameter and value.
% 0.13/0.35    -o:<output-file> file to place output in.
% 0.13/0.39  % SZS status Theorem
% 0.13/0.39  % SZS output start Proof
% 0.13/0.39  tff(b_type, type, (
% 0.13/0.39     b: $int)).
% 0.13/0.39  tff(a_type, type, (
% 0.13/0.39     a: $int)).
% 0.13/0.39  tff(1,assumption,(~$greatereq(b, 1)), introduced(assumption)).
% 0.13/0.39  tff(2,assumption,(~$greatereq(a, 1)), introduced(assumption)).
% 0.13/0.39  tff(3,plain,
% 0.13/0.39      ((~(a = 1)) | $greatereq(a, 1)),
% 0.13/0.39      inference(theory_lemma,[status(thm)],[])).
% 0.13/0.39  tff(4,plain,
% 0.13/0.39      (~(a = 1)),
% 0.13/0.39      inference(unit_resolution,[status(thm)],[3, 2])).
% 0.13/0.39  tff(5,assumption,(~((~((a = -1) | (a = 1))) | (~(a = b)))), introduced(assumption)).
% 0.13/0.39  tff(6,plain,
% 0.13/0.39      (((~((a = -1) | (a = 1))) | (~(a = b))) | (a = b)),
% 0.13/0.39      inference(tautology,[status(thm)],[])).
% 0.13/0.39  tff(7,plain,
% 0.13/0.39      (a = b),
% 0.13/0.39      inference(unit_resolution,[status(thm)],[6, 5])).
% 0.13/0.39  tff(8,plain,
% 0.13/0.39      ((~(a = b)) | $lesseq($sum(a, $product(-1, b)), 0)),
% 0.13/0.39      inference(theory_lemma,[status(thm)],[])).
% 0.13/0.39  tff(9,plain,
% 0.13/0.39      ($lesseq($sum(a, $product(-1, b)), 0)),
% 0.13/0.39      inference(unit_resolution,[status(thm)],[8, 7])).
% 0.13/0.39  tff(10,assumption,(~(a = 1)), introduced(assumption)).
% 0.13/0.39  tff(11,plain,
% 0.13/0.39      (((~((a = -1) | (a = 1))) | (~(a = b))) | ((a = -1) | (a = 1))),
% 0.13/0.39      inference(tautology,[status(thm)],[])).
% 0.13/0.39  tff(12,plain,
% 0.13/0.39      ((a = -1) | (a = 1)),
% 0.13/0.39      inference(unit_resolution,[status(thm)],[11, 5])).
% 0.13/0.39  tff(13,plain,
% 0.13/0.39      ((~((a = -1) | (a = 1))) | (a = -1) | (a = 1)),
% 0.13/0.39      inference(tautology,[status(thm)],[])).
% 0.13/0.39  tff(14,plain,
% 0.13/0.39      (a = -1),
% 0.13/0.39      inference(unit_resolution,[status(thm)],[13, 12, 10])).
% 0.13/0.39  tff(15,plain,
% 0.13/0.39      ((~(a = -1)) | $greatereq(a, -1)),
% 0.13/0.39      inference(theory_lemma,[status(thm)],[])).
% 0.13/0.39  tff(16,plain,
% 0.13/0.39      ($greatereq(a, -1)),
% 0.13/0.39      inference(unit_resolution,[status(thm)],[15, 14])).
% 0.13/0.39  tff(17,plain,
% 0.13/0.39      ((~(a = -1)) | $lesseq(a, -1)),
% 0.13/0.39      inference(theory_lemma,[status(thm)],[])).
% 0.13/0.39  tff(18,plain,
% 0.13/0.39      ($lesseq(a, -1)),
% 0.13/0.39      inference(unit_resolution,[status(thm)],[17, 14])).
% 0.13/0.39  tff(19,plain,
% 0.13/0.39      (((~($product(a, b) = 1)) <=> (~((~((a = -1) | (a = 1))) | (~(a = b))))) <=> (($product(a, b) = 1) <=> ((~((a = -1) | (a = 1))) | (~(a = b))))),
% 0.13/0.39      inference(rewrite,[status(thm)],[])).
% 0.13/0.39  tff(20,plain,
% 0.13/0.39      ((((a = -1) | (a = 1)) & (a = b)) <=> (~((~((a = -1) | (a = 1))) | (~(a = b))))),
% 0.13/0.40      inference(rewrite,[status(thm)],[])).
% 0.13/0.40  tff(21,plain,
% 0.13/0.40      (((~($product(a, b) = 1)) <=> (((a = -1) | (a = 1)) & (a = b))) <=> ((~($product(a, b) = 1)) <=> (~((~((a = -1) | (a = 1))) | (~(a = b)))))),
% 0.13/0.40      inference(monotonicity,[status(thm)],[20])).
% 0.13/0.40  tff(22,plain,
% 0.13/0.40      (((~($product(a, b) = 1)) <=> (((a = -1) | (a = 1)) & (a = b))) <=> (($product(a, b) = 1) <=> ((~((a = -1) | (a = 1))) | (~(a = b))))),
% 0.13/0.40      inference(transitivity,[status(thm)],[21, 19])).
% 0.13/0.40  tff(23,plain,
% 0.13/0.40      (((~($product(a, b) = 1)) <=> (((a = -1) | (a = 1)) & (a = b))) <=> ((~($product(a, b) = 1)) <=> (((a = -1) | (a = 1)) & (a = b)))),
% 0.13/0.40      inference(rewrite,[status(thm)],[])).
% 0.13/0.40  tff(24,plain,
% 0.13/0.40      ((~(($product(a, b) = 1) <=> (((a = -1) | (a = 1)) & (a = b)))) <=> ((~($product(a, b) = 1)) <=> (((a = -1) | (a = 1)) & (a = b)))),
% 0.13/0.40      inference(rewrite,[status(thm)],[])).
% 0.13/0.40  tff(25,axiom,(~(($product(a, b) = 1) <=> (((a = -1) | (a = 1)) & (a = b)))), file('/export/starexec/sandbox/benchmark/theBenchmark.p','conj')).
% 0.13/0.40  tff(26,plain,
% 0.13/0.40      ((~($product(a, b) = 1)) <=> (((a = -1) | (a = 1)) & (a = b))),
% 0.13/0.40      inference(modus_ponens,[status(thm)],[25, 24])).
% 0.13/0.40  tff(27,plain,
% 0.13/0.40      ((~($product(a, b) = 1)) <=> (((a = -1) | (a = 1)) & (a = b))),
% 0.13/0.40      inference(modus_ponens,[status(thm)],[26, 23])).
% 0.13/0.40  tff(28,plain,
% 0.13/0.40      (($product(a, b) = 1) <=> ((~((a = -1) | (a = 1))) | (~(a = b)))),
% 0.13/0.40      inference(modus_ponens,[status(thm)],[27, 22])).
% 0.13/0.40  tff(29,plain,
% 0.13/0.40      ((~($product(a, b) = 1)) | ((~((a = -1) | (a = 1))) | (~(a = b))) | (~(($product(a, b) = 1) <=> ((~((a = -1) | (a = 1))) | (~(a = b)))))),
% 0.13/0.40      inference(tautology,[status(thm)],[])).
% 0.13/0.40  tff(30,plain,
% 0.13/0.40      ((~($product(a, b) = 1)) | ((~((a = -1) | (a = 1))) | (~(a = b)))),
% 0.13/0.40      inference(unit_resolution,[status(thm)],[29, 28])).
% 0.13/0.40  tff(31,plain,
% 0.13/0.40      (~($product(a, b) = 1)),
% 0.13/0.40      inference(unit_resolution,[status(thm)],[30, 5])).
% 0.13/0.40  tff(32,plain,
% 0.13/0.40      ((~(a = b)) | $greatereq($sum(a, $product(-1, b)), 0)),
% 0.13/0.40      inference(theory_lemma,[status(thm)],[])).
% 0.13/0.40  tff(33,plain,
% 0.13/0.40      ($greatereq($sum(a, $product(-1, b)), 0)),
% 0.13/0.40      inference(unit_resolution,[status(thm)],[32, 7])).
% 0.13/0.40  tff(34,assumption,($greatereq($sum(a, $product(-1, b)), 0)), introduced(assumption)).
% 0.13/0.40  tff(35,assumption,($greatereq(b, 0)), introduced(assumption)).
% 0.13/0.40  tff(36,assumption,($lesseq(a, -1)), introduced(assumption)).
% 0.13/0.40  tff(37,plain,
% 0.13/0.40      ($false),
% 0.13/0.40      inference(theory_lemma,[status(thm)],[36, 35, 34])).
% 0.13/0.40  tff(38,plain,((~$greatereq(b, 0)) | (~$lesseq(a, -1)) | (~$greatereq($sum(a, $product(-1, b)), 0))), inference(lemma,lemma(discharge,[]))).
% 0.13/0.40  tff(39,plain,
% 0.13/0.40      (~$greatereq(b, 0)),
% 0.13/0.40      inference(unit_resolution,[status(thm)],[38, 18, 33])).
% 0.13/0.40  tff(40,assumption,(~$greatereq(b, 0)), introduced(assumption)).
% 0.13/0.40  tff(41,assumption,(~$greatereq($product(a, b), 1)), introduced(assumption)).
% 0.13/0.40  tff(42,plain,
% 0.13/0.40      ($greatereq(b, 0) | $greatereq($product(a, b), 1) | (~$lesseq(a, -1))),
% 0.13/0.40      inference(theory_lemma,[status(thm)],[])).
% 0.13/0.40  tff(43,plain,
% 0.13/0.40      ($false),
% 0.13/0.40      inference(unit_resolution,[status(thm)],[42, 41, 36, 40])).
% 0.13/0.40  tff(44,plain,($greatereq($product(a, b), 1) | (~$lesseq(a, -1)) | $greatereq(b, 0)), inference(lemma,lemma(discharge,[]))).
% 0.13/0.40  tff(45,plain,
% 0.13/0.40      ($greatereq($product(a, b), 1)),
% 0.13/0.40      inference(unit_resolution,[status(thm)],[44, 18, 39])).
% 0.13/0.40  tff(46,plain,
% 0.13/0.40      (($product(a, b) = 1) | (~$lesseq($product(a, b), 1)) | (~$greatereq($product(a, b), 1))),
% 0.13/0.40      inference(theory_lemma,[status(thm)],[])).
% 0.13/0.40  tff(47,plain,
% 0.13/0.40      (~$lesseq($product(a, b), 1)),
% 0.13/0.40      inference(unit_resolution,[status(thm)],[46, 45, 31])).
% 0.13/0.40  tff(48,plain,
% 0.13/0.40      ($lesseq(b, -2) | $lesseq($product(a, b), 1) | (~$lesseq(a, -1)) | (~$greatereq(a, -1))),
% 0.13/0.40      inference(theory_lemma,[status(thm)],[])).
% 0.13/0.40  tff(49,plain,
% 0.13/0.40      ($lesseq(b, -2)),
% 0.13/0.40      inference(unit_resolution,[status(thm)],[48, 47, 18, 16])).
% 0.13/0.40  tff(50,plain,
% 0.13/0.40      ($false),
% 0.13/0.40      inference(theory_lemma,[status(thm)],[16, 49, 9])).
% 0.13/0.40  tff(51,plain,(((~((a = -1) | (a = 1))) | (~(a = b))) | (a = 1)), inference(lemma,lemma(discharge,[]))).
% 0.13/0.40  tff(52,plain,
% 0.13/0.40      ((~((a = -1) | (a = 1))) | (~(a = b))),
% 0.13/0.40      inference(unit_resolution,[status(thm)],[51, 4])).
% 0.13/0.40  tff(53,plain,
% 0.13/0.40      (($product(a, b) = 1) | (~((~((a = -1) | (a = 1))) | (~(a = b)))) | (~(($product(a, b) = 1) <=> ((~((a = -1) | (a = 1))) | (~(a = b)))))),
% 0.13/0.40      inference(tautology,[status(thm)],[])).
% 0.13/0.40  tff(54,plain,
% 0.13/0.40      (($product(a, b) = 1) | (~((~((a = -1) | (a = 1))) | (~(a = b))))),
% 0.13/0.40      inference(unit_resolution,[status(thm)],[53, 28])).
% 0.13/0.40  tff(55,plain,
% 0.13/0.40      ($product(a, b) = 1),
% 0.13/0.40      inference(unit_resolution,[status(thm)],[54, 52])).
% 0.13/0.40  tff(56,plain,
% 0.13/0.40      ((~($product(a, b) = 1)) | $lesseq($product(a, b), 1)),
% 0.13/0.40      inference(theory_lemma,[status(thm)],[])).
% 0.13/0.40  tff(57,plain,
% 0.13/0.40      ($lesseq($product(a, b), 1)),
% 0.13/0.40      inference(unit_resolution,[status(thm)],[56, 55])).
% 0.13/0.40  tff(58,plain,
% 0.13/0.40      ((~($product(a, b) = 1)) | $greatereq($product(a, b), 1)),
% 0.13/0.40      inference(theory_lemma,[status(thm)],[])).
% 0.13/0.40  tff(59,plain,
% 0.13/0.40      ($greatereq($product(a, b), 1)),
% 0.13/0.40      inference(unit_resolution,[status(thm)],[58, 55])).
% 0.13/0.40  tff(60,assumption,($lesseq($product(a, b), 1)), introduced(assumption)).
% 0.13/0.40  tff(61,assumption,(~$greatereq(a, -1)), introduced(assumption)).
% 0.13/0.40  tff(62,plain,
% 0.13/0.40      ($greatereq(b, 0) | (~$lesseq($product(a, b), 1)) | $greatereq(a, -1)),
% 0.13/0.40      inference(theory_lemma,[status(thm)],[])).
% 0.13/0.40  tff(63,plain,
% 0.13/0.40      ($false),
% 0.13/0.40      inference(unit_resolution,[status(thm)],[62, 60, 61, 40])).
% 0.13/0.40  tff(64,plain,($greatereq(b, 0) | (~$lesseq($product(a, b), 1)) | $greatereq(a, -1)), inference(lemma,lemma(discharge,[]))).
% 0.13/0.40  tff(65,plain,
% 0.13/0.40      ($greatereq(b, 0)),
% 0.13/0.40      inference(unit_resolution,[status(thm)],[64, 61, 60])).
% 0.13/0.40  tff(66,assumption,($greatereq($product(a, b), 1)), introduced(assumption)).
% 0.13/0.40  tff(67,plain,
% 0.13/0.40      ((~$greatereq(b, 0)) | (~$greatereq($product(a, b), 1)) | $greatereq(a, -1)),
% 0.13/0.40      inference(theory_lemma,[status(thm)],[])).
% 0.13/0.40  tff(68,plain,
% 0.13/0.40      ($false),
% 0.13/0.40      inference(unit_resolution,[status(thm)],[67, 66, 61, 65])).
% 0.13/0.40  tff(69,plain,($greatereq(a, -1) | (~$greatereq($product(a, b), 1)) | (~$lesseq($product(a, b), 1))), inference(lemma,lemma(discharge,[]))).
% 0.13/0.40  tff(70,plain,
% 0.13/0.40      ($greatereq(a, -1)),
% 0.13/0.40      inference(unit_resolution,[status(thm)],[69, 59, 57])).
% 0.13/0.40  tff(71,assumption,(~$lesseq(a, -1)), introduced(assumption)).
% 0.13/0.40  tff(72,plain,
% 0.13/0.40      ((~$greatereq($product(a, b), 1)) | $greatereq(a, 1) | $lesseq(a, -1)),
% 0.13/0.40      inference(theory_lemma,[status(thm)],[])).
% 0.13/0.40  tff(73,plain,
% 0.13/0.40      ($false),
% 0.13/0.40      inference(unit_resolution,[status(thm)],[72, 59, 71, 2])).
% 0.13/0.40  tff(74,plain,($lesseq(a, -1) | $greatereq(a, 1)), inference(lemma,lemma(discharge,[]))).
% 0.13/0.40  tff(75,plain,
% 0.13/0.40      ($lesseq(a, -1)),
% 0.13/0.40      inference(unit_resolution,[status(thm)],[74, 2])).
% 0.13/0.40  tff(76,plain,
% 0.13/0.40      ((a = -1) | (~$lesseq(a, -1)) | (~$greatereq(a, -1))),
% 0.13/0.40      inference(theory_lemma,[status(thm)],[])).
% 0.13/0.40  tff(77,plain,
% 0.13/0.40      (a = -1),
% 0.13/0.40      inference(unit_resolution,[status(thm)],[76, 70, 75])).
% 0.13/0.40  tff(78,plain,
% 0.13/0.40      (((a = -1) | (a = 1)) | (~(a = -1))),
% 0.13/0.40      inference(tautology,[status(thm)],[])).
% 0.13/0.40  tff(79,plain,
% 0.13/0.40      ((a = -1) | (a = 1)),
% 0.13/0.40      inference(unit_resolution,[status(thm)],[78, 77])).
% 0.13/0.40  tff(80,plain,
% 0.13/0.40      ((~((~((a = -1) | (a = 1))) | (~(a = b)))) | (~((a = -1) | (a = 1))) | (~(a = b))),
% 0.13/0.40      inference(tautology,[status(thm)],[])).
% 0.13/0.40  tff(81,plain,
% 0.13/0.40      (~(a = b)),
% 0.13/0.40      inference(unit_resolution,[status(thm)],[80, 79, 52])).
% 0.13/0.40  tff(82,assumption,(~$lesseq($sum(a, $product(-1, b)), 0)), introduced(assumption)).
% 0.13/0.40  tff(83,plain,
% 0.13/0.40      ($greatereq(b, -1) | (~$lesseq($product(a, b), 1)) | (~$lesseq(a, -1))),
% 0.13/0.40      inference(theory_lemma,[status(thm)],[])).
% 0.13/0.40  tff(84,plain,
% 0.13/0.40      ($greatereq(b, -1)),
% 0.13/0.40      inference(unit_resolution,[status(thm)],[83, 60, 36])).
% 0.13/0.40  tff(85,plain,
% 0.13/0.40      ($false),
% 0.13/0.40      inference(theory_lemma,[status(thm)],[36, 84, 82])).
% 0.13/0.40  tff(86,plain,($lesseq($sum(a, $product(-1, b)), 0) | (~$lesseq(a, -1)) | (~$lesseq($product(a, b), 1))), inference(lemma,lemma(discharge,[]))).
% 0.13/0.40  tff(87,plain,
% 0.13/0.40      ($lesseq($sum(a, $product(-1, b)), 0)),
% 0.13/0.40      inference(unit_resolution,[status(thm)],[86, 75, 57])).
% 0.13/0.40  tff(88,plain,
% 0.13/0.40      ((a = b) | (~$lesseq($sum(a, $product(-1, b)), 0)) | (~$greatereq($sum(a, $product(-1, b)), 0))),
% 0.13/0.40      inference(theory_lemma,[status(thm)],[])).
% 0.13/0.40  tff(89,plain,
% 0.13/0.40      (~$greatereq($sum(a, $product(-1, b)), 0)),
% 0.13/0.40      inference(unit_resolution,[status(thm)],[88, 87, 81])).
% 0.13/0.40  tff(90,assumption,(~$greatereq($sum(a, $product(-1, b)), 0)), introduced(assumption)).
% 0.13/0.40  tff(91,plain,
% 0.13/0.40      ($lesseq(b, -1) | $greatereq(b, 0)),
% 0.13/0.40      inference(theory_lemma,[status(thm)],[])).
% 0.13/0.40  tff(92,plain,
% 0.13/0.40      ($lesseq(b, -1)),
% 0.13/0.40      inference(unit_resolution,[status(thm)],[91, 40])).
% 0.13/0.40  tff(93,assumption,($greatereq(a, -1)), introduced(assumption)).
% 0.13/0.40  tff(94,plain,
% 0.13/0.40      ($false),
% 0.13/0.40      inference(theory_lemma,[status(thm)],[93, 92, 90])).
% 0.13/0.40  tff(95,plain,($greatereq($sum(a, $product(-1, b)), 0) | (~$greatereq(a, -1)) | $greatereq(b, 0)), inference(lemma,lemma(discharge,[]))).
% 0.13/0.40  tff(96,plain,
% 0.13/0.40      ($greatereq(b, 0)),
% 0.13/0.40      inference(unit_resolution,[status(thm)],[95, 89, 70])).
% 0.13/0.40  tff(97,plain,
% 0.13/0.40      ((~$lesseq(b, -1)) | (~$greatereq(b, 0))),
% 0.13/0.40      inference(theory_lemma,[status(thm)],[])).
% 0.13/0.40  tff(98,plain,
% 0.13/0.40      (~$lesseq(b, -1)),
% 0.13/0.40      inference(unit_resolution,[status(thm)],[97, 96])).
% 0.13/0.40  tff(99,plain,
% 0.13/0.40      ($lesseq(b, -1) | (~$greatereq($product(a, b), 1)) | (~$lesseq(a, -1)) | (~$greatereq(a, -1))),
% 0.13/0.40      inference(theory_lemma,[status(thm)],[])).
% 0.13/0.40  tff(100,plain,
% 0.13/0.40      ($false),
% 0.13/0.40      inference(unit_resolution,[status(thm)],[99, 59, 75, 70, 98])).
% 0.13/0.40  tff(101,plain,($greatereq(a, 1)), inference(lemma,lemma(discharge,[]))).
% 0.13/0.40  tff(102,assumption,(~$lesseq(a, 1)), introduced(assumption)).
% 0.13/0.40  tff(103,assumption,($lesseq(b, 0)), introduced(assumption)).
% 0.13/0.40  tff(104,plain,
% 0.13/0.40      (~($product(a, b) = 1)),
% 0.13/0.40      inference(unit_resolution,[status(thm)],[58, 41])).
% 0.13/0.40  tff(105,plain,
% 0.13/0.40      (~((~((a = -1) | (a = 1))) | (~(a = b)))),
% 0.13/0.40      inference(unit_resolution,[status(thm)],[54, 104])).
% 0.13/0.40  tff(106,plain,
% 0.13/0.40      (a = b),
% 0.13/0.40      inference(unit_resolution,[status(thm)],[6, 105])).
% 0.13/0.40  tff(107,plain,
% 0.13/0.40      ($lesseq($sum(a, $product(-1, b)), 0)),
% 0.13/0.40      inference(unit_resolution,[status(thm)],[8, 106])).
% 0.13/0.40  tff(108,plain,
% 0.13/0.40      (a = 1),
% 0.13/0.40      inference(unit_resolution,[status(thm)],[51, 105])).
% 0.13/0.40  tff(109,plain,
% 0.13/0.40      ((~(a = 1)) | $lesseq(a, 1)),
% 0.13/0.40      inference(theory_lemma,[status(thm)],[])).
% 0.13/0.40  tff(110,plain,
% 0.13/0.40      ($lesseq(a, 1)),
% 0.13/0.40      inference(unit_resolution,[status(thm)],[109, 108])).
% 0.13/0.40  tff(111,plain,
% 0.13/0.40      ($lesseq(b, 0) | (~$lesseq(a, 1)) | (~$greatereq(a, 1)) | $greatereq($product(a, b), 1)),
% 0.13/0.40      inference(theory_lemma,[status(thm)],[])).
% 0.13/0.40  tff(112,plain,
% 0.13/0.40      ($lesseq(b, 0)),
% 0.13/0.40      inference(unit_resolution,[status(thm)],[111, 41, 110, 101])).
% 0.13/0.40  tff(113,plain,
% 0.13/0.40      ($false),
% 0.13/0.40      inference(theory_lemma,[status(thm)],[101, 112, 107])).
% 0.13/0.40  tff(114,plain,($greatereq($product(a, b), 1)), inference(lemma,lemma(discharge,[]))).
% 0.13/0.40  tff(115,plain,
% 0.13/0.40      ($lesseq(a, 1) | (~$greatereq($product(a, b), 1)) | (~$lesseq(b, 0))),
% 0.13/0.40      inference(theory_lemma,[status(thm)],[])).
% 0.13/0.40  tff(116,plain,
% 0.13/0.40      ($false),
% 0.13/0.40      inference(unit_resolution,[status(thm)],[115, 114, 102, 103])).
% 0.13/0.40  tff(117,plain,((~$lesseq(b, 0)) | $lesseq(a, 1)), inference(lemma,lemma(discharge,[]))).
% 0.13/0.40  tff(118,plain,
% 0.13/0.40      (~$lesseq(b, 0)),
% 0.13/0.40      inference(unit_resolution,[status(thm)],[117, 102])).
% 0.13/0.40  tff(119,assumption,(~$lesseq($product(a, b), 1)), introduced(assumption)).
% 0.13/0.40  tff(120,plain,
% 0.13/0.40      (~($product(a, b) = 1)),
% 0.13/0.40      inference(unit_resolution,[status(thm)],[56, 119])).
% 0.13/0.40  tff(121,plain,
% 0.13/0.40      (~((~((a = -1) | (a = 1))) | (~(a = b)))),
% 0.13/0.40      inference(unit_resolution,[status(thm)],[54, 120])).
% 0.13/0.40  tff(122,plain,
% 0.13/0.40      (a = b),
% 0.13/0.40      inference(unit_resolution,[status(thm)],[6, 121])).
% 0.13/0.40  tff(123,plain,
% 0.13/0.40      ($greatereq($sum(a, $product(-1, b)), 0)),
% 0.13/0.40      inference(unit_resolution,[status(thm)],[32, 122])).
% 0.13/0.40  tff(124,plain,
% 0.13/0.40      (a = 1),
% 0.13/0.40      inference(unit_resolution,[status(thm)],[51, 121])).
% 0.13/0.40  tff(125,plain,
% 0.13/0.40      ($lesseq(a, 1)),
% 0.13/0.40      inference(unit_resolution,[status(thm)],[109, 124])).
% 0.13/0.40  tff(126,plain,
% 0.13/0.40      ($greatereq(b, 2) | (~$lesseq(a, 1)) | $lesseq($product(a, b), 1) | (~$greatereq(a, 1))),
% 0.13/0.40      inference(theory_lemma,[status(thm)],[])).
% 0.13/0.40  tff(127,plain,
% 0.13/0.40      ($greatereq(b, 2)),
% 0.13/0.40      inference(unit_resolution,[status(thm)],[126, 119, 125, 101])).
% 0.13/0.40  tff(128,plain,
% 0.13/0.40      ($false),
% 0.13/0.40      inference(theory_lemma,[status(thm)],[125, 127, 123])).
% 0.13/0.40  tff(129,plain,($lesseq($product(a, b), 1)), inference(lemma,lemma(discharge,[]))).
% 0.13/0.40  tff(130,plain,
% 0.13/0.40      ((~$lesseq($product(a, b), 1)) | $lesseq(a, 1) | $lesseq(b, 0)),
% 0.13/0.40      inference(theory_lemma,[status(thm)],[])).
% 0.13/0.40  tff(131,plain,
% 0.13/0.40      ($false),
% 0.13/0.40      inference(unit_resolution,[status(thm)],[130, 129, 102, 118])).
% 0.13/0.40  tff(132,plain,($lesseq(a, 1)), inference(lemma,lemma(discharge,[]))).
% 0.13/0.40  tff(133,plain,
% 0.13/0.40      ($greatereq(b, 1) | (~$lesseq(a, 1)) | (~$greatereq($product(a, b), 1)) | (~$greatereq(a, 1))),
% 0.13/0.40      inference(theory_lemma,[status(thm)],[])).
% 0.13/0.40  tff(134,plain,
% 0.13/0.40      ($false),
% 0.13/0.40      inference(unit_resolution,[status(thm)],[133, 114, 132, 101, 1])).
% 0.13/0.40  tff(135,plain,($greatereq(b, 1)), inference(lemma,lemma(discharge,[]))).
% 0.13/0.40  tff(136,plain,
% 0.13/0.40      ($lesseq(b, 1) | (~$lesseq($product(a, b), 1)) | (~$greatereq(a, 1))),
% 0.13/0.40      inference(theory_lemma,[status(thm)],[])).
% 0.13/0.40  tff(137,plain,
% 0.13/0.40      ($lesseq(b, 1)),
% 0.13/0.40      inference(unit_resolution,[status(thm)],[136, 129, 101])).
% 0.13/0.40  tff(138,plain,
% 0.13/0.40      ($false),
% 0.13/0.40      inference(theory_lemma,[status(thm)],[101, 137, 90])).
% 0.13/0.40  tff(139,plain,($greatereq($sum(a, $product(-1, b)), 0)), inference(lemma,lemma(discharge,[]))).
% 0.13/0.40  tff(140,plain,
% 0.13/0.40      ($product(a, b) = 1),
% 0.13/0.40      inference(unit_resolution,[status(thm)],[46, 114, 129])).
% 0.13/0.40  tff(141,plain,
% 0.13/0.40      ((~((a = -1) | (a = 1))) | (~(a = b))),
% 0.13/0.40      inference(unit_resolution,[status(thm)],[30, 140])).
% 0.13/0.40  tff(142,plain,
% 0.13/0.40      ((a = 1) | (~$lesseq(a, 1)) | (~$greatereq(a, 1))),
% 0.13/0.40      inference(theory_lemma,[status(thm)],[])).
% 0.13/0.40  tff(143,plain,
% 0.13/0.40      ((a = 1) | (~$lesseq(a, 1))),
% 0.13/0.40      inference(unit_resolution,[status(thm)],[142, 101])).
% 0.13/0.40  tff(144,plain,
% 0.13/0.40      (a = 1),
% 0.13/0.40      inference(unit_resolution,[status(thm)],[143, 132])).
% 0.13/0.40  tff(145,plain,
% 0.13/0.40      (((a = -1) | (a = 1)) | (~(a = 1))),
% 0.13/0.40      inference(tautology,[status(thm)],[])).
% 0.13/0.40  tff(146,plain,
% 0.13/0.40      ((a = -1) | (a = 1)),
% 0.13/0.40      inference(unit_resolution,[status(thm)],[145, 144])).
% 0.13/0.40  tff(147,plain,
% 0.13/0.40      (~(a = b)),
% 0.13/0.40      inference(unit_resolution,[status(thm)],[80, 146, 141])).
% 0.13/0.40  tff(148,plain,
% 0.13/0.40      (~$lesseq($sum(a, $product(-1, b)), 0)),
% 0.13/0.40      inference(unit_resolution,[status(thm)],[88, 147, 139])).
% 0.13/0.40  tff(149,plain,
% 0.13/0.40      ((~$lesseq(a, 1)) | $lesseq($sum(a, $product(-1, b)), 0) | $lesseq(b, 0)),
% 0.13/0.40      inference(theory_lemma,[status(thm)],[])).
% 0.13/0.40  tff(150,plain,
% 0.13/0.40      ($lesseq(b, 0)),
% 0.13/0.40      inference(unit_resolution,[status(thm)],[149, 148, 132])).
% 0.13/0.40  tff(151,plain,
% 0.13/0.40      ((~$greatereq(b, 1)) | (~$lesseq(b, 0))),
% 0.13/0.40      inference(theory_lemma,[status(thm)],[])).
% 0.13/0.40  tff(152,plain,
% 0.13/0.40      (~$greatereq(b, 1)),
% 0.13/0.40      inference(unit_resolution,[status(thm)],[151, 150])).
% 0.13/0.40  tff(153,plain,
% 0.13/0.40      ($false),
% 0.13/0.40      inference(unit_resolution,[status(thm)],[152, 135])).
% 0.13/0.40  % SZS output end Proof
%------------------------------------------------------------------------------