TSTP Solution File: SET976+1 by Z3---4.8.9.0

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : Z3---4.8.9.0
% Problem  : SET976+1 : TPTP v8.1.0. Released v3.2.0.
% Transfm  : none
% Format   : tptp
% Command  : z3_tptp -proof -model -t:%d -file:%s

% Computer : n022.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 20 05:08:47 EDT 2022

% Result   : Theorem 0.20s 0.39s
% Output   : Proof 0.20s
% Verified : 
% SZS Type : -

% Comments : 
%------------------------------------------------------------------------------
%----WARNING: Could not form TPTP format derivation
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.04/0.12  % Problem  : SET976+1 : TPTP v8.1.0. Released v3.2.0.
% 0.04/0.13  % Command  : z3_tptp -proof -model -t:%d -file:%s
% 0.13/0.34  % Computer : n022.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 : Sat Sep  3 08:49:54 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.
% 0.20/0.39  % SZS status Theorem
% 0.20/0.39  % SZS output start Proof
% 0.20/0.39  tff(tptp_fun_D_3_type, type, (
% 0.20/0.39     tptp_fun_D_3: $i)).
% 0.20/0.39  tff(tptp_fun_B_5_type, type, (
% 0.20/0.39     tptp_fun_B_5: $i)).
% 0.20/0.39  tff(in_type, type, (
% 0.20/0.39     in: ( $i * $i ) > $o)).
% 0.20/0.39  tff(singleton_type, type, (
% 0.20/0.39     singleton: $i > $i)).
% 0.20/0.39  tff(tptp_fun_C_4_type, type, (
% 0.20/0.39     tptp_fun_C_4: $i)).
% 0.20/0.39  tff(tptp_fun_A_6_type, type, (
% 0.20/0.39     tptp_fun_A_6: $i)).
% 0.20/0.39  tff(cartesian_product2_type, type, (
% 0.20/0.39     cartesian_product2: ( $i * $i ) > $i)).
% 0.20/0.39  tff(ordered_pair_type, type, (
% 0.20/0.39     ordered_pair: ( $i * $i ) > $i)).
% 0.20/0.39  tff(tptp_fun_C_0_type, type, (
% 0.20/0.39     tptp_fun_C_0: ( $i * $i ) > $i)).
% 0.20/0.39  tff(1,assumption,(~((~in(A!6, C!4)) | (~(B!5 = D!3)))), introduced(assumption)).
% 0.20/0.39  tff(2,plain,
% 0.20/0.39      (((~in(A!6, C!4)) | (~(B!5 = D!3))) | (B!5 = D!3)),
% 0.20/0.39      inference(tautology,[status(thm)],[])).
% 0.20/0.39  tff(3,plain,
% 0.20/0.39      (B!5 = D!3),
% 0.20/0.39      inference(unit_resolution,[status(thm)],[2, 1])).
% 0.20/0.39  tff(4,plain,
% 0.20/0.39      (D!3 = B!5),
% 0.20/0.39      inference(symmetry,[status(thm)],[3])).
% 0.20/0.39  tff(5,plain,
% 0.20/0.39      (in(D!3, singleton(D!3)) <=> in(B!5, singleton(D!3))),
% 0.20/0.39      inference(monotonicity,[status(thm)],[4])).
% 0.20/0.39  tff(6,plain,
% 0.20/0.39      (in(B!5, singleton(D!3)) <=> in(D!3, singleton(D!3))),
% 0.20/0.39      inference(symmetry,[status(thm)],[5])).
% 0.20/0.39  tff(7,plain,
% 0.20/0.39      ((~in(B!5, singleton(D!3))) <=> (~in(D!3, singleton(D!3)))),
% 0.20/0.39      inference(monotonicity,[status(thm)],[6])).
% 0.20/0.39  tff(8,plain,
% 0.20/0.39      (((~in(A!6, C!4)) | (~(B!5 = D!3))) | in(A!6, C!4)),
% 0.20/0.39      inference(tautology,[status(thm)],[])).
% 0.20/0.39  tff(9,plain,
% 0.20/0.39      (in(A!6, C!4)),
% 0.20/0.39      inference(unit_resolution,[status(thm)],[8, 1])).
% 0.20/0.39  tff(10,plain,
% 0.20/0.39      (((~in(ordered_pair(A!6, B!5), cartesian_product2(C!4, singleton(D!3)))) <=> (~((~in(A!6, C!4)) | (~(B!5 = D!3))))) <=> (in(ordered_pair(A!6, B!5), cartesian_product2(C!4, singleton(D!3))) <=> ((~in(A!6, C!4)) | (~(B!5 = D!3))))),
% 0.20/0.39      inference(rewrite,[status(thm)],[])).
% 0.20/0.39  tff(11,plain,
% 0.20/0.39      ((in(A!6, C!4) & (B!5 = D!3)) <=> (~((~in(A!6, C!4)) | (~(B!5 = D!3))))),
% 0.20/0.39      inference(rewrite,[status(thm)],[])).
% 0.20/0.39  tff(12,plain,
% 0.20/0.39      (((~in(ordered_pair(A!6, B!5), cartesian_product2(C!4, singleton(D!3)))) <=> (in(A!6, C!4) & (B!5 = D!3))) <=> ((~in(ordered_pair(A!6, B!5), cartesian_product2(C!4, singleton(D!3)))) <=> (~((~in(A!6, C!4)) | (~(B!5 = D!3)))))),
% 0.20/0.39      inference(monotonicity,[status(thm)],[11])).
% 0.20/0.39  tff(13,plain,
% 0.20/0.39      (((~in(ordered_pair(A!6, B!5), cartesian_product2(C!4, singleton(D!3)))) <=> (in(A!6, C!4) & (B!5 = D!3))) <=> (in(ordered_pair(A!6, B!5), cartesian_product2(C!4, singleton(D!3))) <=> ((~in(A!6, C!4)) | (~(B!5 = D!3))))),
% 0.20/0.39      inference(transitivity,[status(thm)],[12, 10])).
% 0.20/0.39  tff(14,plain,
% 0.20/0.39      ((~(in(ordered_pair(A!6, B!5), cartesian_product2(C!4, singleton(D!3))) <=> (in(A!6, C!4) & (B!5 = D!3)))) <=> ((~in(ordered_pair(A!6, B!5), cartesian_product2(C!4, singleton(D!3)))) <=> (in(A!6, C!4) & (B!5 = D!3)))),
% 0.20/0.39      inference(rewrite,[status(thm)],[])).
% 0.20/0.39  tff(15,plain,
% 0.20/0.39      ((~![A: $i, B: $i, C: $i, D: $i] : (in(ordered_pair(A, B), cartesian_product2(C, singleton(D))) <=> (in(A, C) & (B = D)))) <=> (~![A: $i, B: $i, C: $i, D: $i] : (in(ordered_pair(A, B), cartesian_product2(C, singleton(D))) <=> (in(A, C) & (B = D))))),
% 0.20/0.39      inference(rewrite,[status(thm)],[])).
% 0.20/0.39  tff(16,axiom,(~![A: $i, B: $i, C: $i, D: $i] : (in(ordered_pair(A, B), cartesian_product2(C, singleton(D))) <=> (in(A, C) & (B = D)))), file('/export/starexec/sandbox/benchmark/theBenchmark.p','t129_zfmisc_1')).
% 0.20/0.39  tff(17,plain,
% 0.20/0.39      (~![A: $i, B: $i, C: $i, D: $i] : (in(ordered_pair(A, B), cartesian_product2(C, singleton(D))) <=> (in(A, C) & (B = D)))),
% 0.20/0.39      inference(modus_ponens,[status(thm)],[16, 15])).
% 0.20/0.39  tff(18,plain,
% 0.20/0.39      (~![A: $i, B: $i, C: $i, D: $i] : (in(ordered_pair(A, B), cartesian_product2(C, singleton(D))) <=> (in(A, C) & (B = D)))),
% 0.20/0.39      inference(modus_ponens,[status(thm)],[17, 15])).
% 0.20/0.39  tff(19,plain,
% 0.20/0.39      (~![A: $i, B: $i, C: $i, D: $i] : (in(ordered_pair(A, B), cartesian_product2(C, singleton(D))) <=> (in(A, C) & (B = D)))),
% 0.20/0.39      inference(modus_ponens,[status(thm)],[18, 15])).
% 0.20/0.39  tff(20,plain,
% 0.20/0.39      (~![A: $i, B: $i, C: $i, D: $i] : (in(ordered_pair(A, B), cartesian_product2(C, singleton(D))) <=> (in(A, C) & (B = D)))),
% 0.20/0.39      inference(modus_ponens,[status(thm)],[19, 15])).
% 0.20/0.39  tff(21,plain,
% 0.20/0.40      (~![A: $i, B: $i, C: $i, D: $i] : (in(ordered_pair(A, B), cartesian_product2(C, singleton(D))) <=> (in(A, C) & (B = D)))),
% 0.20/0.40      inference(modus_ponens,[status(thm)],[20, 15])).
% 0.20/0.40  tff(22,plain,
% 0.20/0.40      (~![A: $i, B: $i, C: $i, D: $i] : (in(ordered_pair(A, B), cartesian_product2(C, singleton(D))) <=> (in(A, C) & (B = D)))),
% 0.20/0.40      inference(modus_ponens,[status(thm)],[21, 15])).
% 0.20/0.40  tff(23,plain,
% 0.20/0.40      (~![A: $i, B: $i, C: $i, D: $i] : (in(ordered_pair(A, B), cartesian_product2(C, singleton(D))) <=> (in(A, C) & (B = D)))),
% 0.20/0.40      inference(modus_ponens,[status(thm)],[22, 15])).
% 0.20/0.40  tff(24,plain,(
% 0.20/0.40      ~(in(ordered_pair(A!6, B!5), cartesian_product2(C!4, singleton(D!3))) <=> (in(A!6, C!4) & (B!5 = D!3)))),
% 0.20/0.40      inference(skolemize,[status(sab)],[23])).
% 0.20/0.40  tff(25,plain,
% 0.20/0.40      ((~in(ordered_pair(A!6, B!5), cartesian_product2(C!4, singleton(D!3)))) <=> (in(A!6, C!4) & (B!5 = D!3))),
% 0.20/0.40      inference(modus_ponens,[status(thm)],[24, 14])).
% 0.20/0.40  tff(26,plain,
% 0.20/0.40      (in(ordered_pair(A!6, B!5), cartesian_product2(C!4, singleton(D!3))) <=> ((~in(A!6, C!4)) | (~(B!5 = D!3)))),
% 0.20/0.40      inference(modus_ponens,[status(thm)],[25, 13])).
% 0.20/0.40  tff(27,plain,
% 0.20/0.40      ((~in(ordered_pair(A!6, B!5), cartesian_product2(C!4, singleton(D!3)))) | ((~in(A!6, C!4)) | (~(B!5 = D!3))) | (~(in(ordered_pair(A!6, B!5), cartesian_product2(C!4, singleton(D!3))) <=> ((~in(A!6, C!4)) | (~(B!5 = D!3)))))),
% 0.20/0.40      inference(tautology,[status(thm)],[])).
% 0.20/0.40  tff(28,plain,
% 0.20/0.40      ((~in(ordered_pair(A!6, B!5), cartesian_product2(C!4, singleton(D!3)))) | ((~in(A!6, C!4)) | (~(B!5 = D!3)))),
% 0.20/0.40      inference(unit_resolution,[status(thm)],[27, 26])).
% 0.20/0.40  tff(29,plain,
% 0.20/0.40      (~in(ordered_pair(A!6, B!5), cartesian_product2(C!4, singleton(D!3)))),
% 0.20/0.40      inference(unit_resolution,[status(thm)],[28, 1])).
% 0.20/0.40  tff(30,plain,
% 0.20/0.40      (^[A: $i, B: $i, C: $i, D: $i] : refl((in(ordered_pair(A, B), cartesian_product2(C, D)) <=> (~((~in(A, C)) | (~in(B, D))))) <=> (in(ordered_pair(A, B), cartesian_product2(C, D)) <=> (~((~in(A, C)) | (~in(B, D))))))),
% 0.20/0.40      inference(bind,[status(th)],[])).
% 0.20/0.40  tff(31,plain,
% 0.20/0.40      (![A: $i, B: $i, C: $i, D: $i] : (in(ordered_pair(A, B), cartesian_product2(C, D)) <=> (~((~in(A, C)) | (~in(B, D))))) <=> ![A: $i, B: $i, C: $i, D: $i] : (in(ordered_pair(A, B), cartesian_product2(C, D)) <=> (~((~in(A, C)) | (~in(B, D)))))),
% 0.20/0.40      inference(quant_intro,[status(thm)],[30])).
% 0.20/0.40  tff(32,plain,
% 0.20/0.40      (^[A: $i, B: $i, C: $i, D: $i] : rewrite((in(ordered_pair(A, B), cartesian_product2(C, D)) <=> (in(A, C) & in(B, D))) <=> (in(ordered_pair(A, B), cartesian_product2(C, D)) <=> (~((~in(A, C)) | (~in(B, D))))))),
% 0.20/0.40      inference(bind,[status(th)],[])).
% 0.20/0.40  tff(33,plain,
% 0.20/0.40      (![A: $i, B: $i, C: $i, D: $i] : (in(ordered_pair(A, B), cartesian_product2(C, D)) <=> (in(A, C) & in(B, D))) <=> ![A: $i, B: $i, C: $i, D: $i] : (in(ordered_pair(A, B), cartesian_product2(C, D)) <=> (~((~in(A, C)) | (~in(B, D)))))),
% 0.20/0.40      inference(quant_intro,[status(thm)],[32])).
% 0.20/0.40  tff(34,plain,
% 0.20/0.40      (![A: $i, B: $i, C: $i, D: $i] : (in(ordered_pair(A, B), cartesian_product2(C, D)) <=> (in(A, C) & in(B, D))) <=> ![A: $i, B: $i, C: $i, D: $i] : (in(ordered_pair(A, B), cartesian_product2(C, D)) <=> (in(A, C) & in(B, D)))),
% 0.20/0.40      inference(rewrite,[status(thm)],[])).
% 0.20/0.40  tff(35,axiom,(![A: $i, B: $i, C: $i, D: $i] : (in(ordered_pair(A, B), cartesian_product2(C, D)) <=> (in(A, C) & in(B, D)))), file('/export/starexec/sandbox/benchmark/theBenchmark.p','l55_zfmisc_1')).
% 0.20/0.40  tff(36,plain,
% 0.20/0.40      (![A: $i, B: $i, C: $i, D: $i] : (in(ordered_pair(A, B), cartesian_product2(C, D)) <=> (in(A, C) & in(B, D)))),
% 0.20/0.40      inference(modus_ponens,[status(thm)],[35, 34])).
% 0.20/0.40  tff(37,plain,(
% 0.20/0.40      ![A: $i, B: $i, C: $i, D: $i] : (in(ordered_pair(A, B), cartesian_product2(C, D)) <=> (in(A, C) & in(B, D)))),
% 0.20/0.40      inference(skolemize,[status(sab)],[36])).
% 0.20/0.40  tff(38,plain,
% 0.20/0.40      (![A: $i, B: $i, C: $i, D: $i] : (in(ordered_pair(A, B), cartesian_product2(C, D)) <=> (~((~in(A, C)) | (~in(B, D)))))),
% 0.20/0.40      inference(modus_ponens,[status(thm)],[37, 33])).
% 0.20/0.40  tff(39,plain,
% 0.20/0.40      (![A: $i, B: $i, C: $i, D: $i] : (in(ordered_pair(A, B), cartesian_product2(C, D)) <=> (~((~in(A, C)) | (~in(B, D)))))),
% 0.20/0.40      inference(modus_ponens,[status(thm)],[38, 31])).
% 0.20/0.40  tff(40,plain,
% 0.20/0.40      ((~![A: $i, B: $i, C: $i, D: $i] : (in(ordered_pair(A, B), cartesian_product2(C, D)) <=> (~((~in(A, C)) | (~in(B, D)))))) | (in(ordered_pair(A!6, B!5), cartesian_product2(C!4, singleton(D!3))) <=> (~((~in(A!6, C!4)) | (~in(B!5, singleton(D!3))))))),
% 0.20/0.40      inference(quant_inst,[status(thm)],[])).
% 0.20/0.40  tff(41,plain,
% 0.20/0.40      (in(ordered_pair(A!6, B!5), cartesian_product2(C!4, singleton(D!3))) <=> (~((~in(A!6, C!4)) | (~in(B!5, singleton(D!3)))))),
% 0.20/0.40      inference(unit_resolution,[status(thm)],[40, 39])).
% 0.20/0.40  tff(42,plain,
% 0.20/0.40      ((~(in(ordered_pair(A!6, B!5), cartesian_product2(C!4, singleton(D!3))) <=> (~((~in(A!6, C!4)) | (~in(B!5, singleton(D!3))))))) | in(ordered_pair(A!6, B!5), cartesian_product2(C!4, singleton(D!3))) | ((~in(A!6, C!4)) | (~in(B!5, singleton(D!3))))),
% 0.20/0.40      inference(tautology,[status(thm)],[])).
% 0.20/0.40  tff(43,plain,
% 0.20/0.40      (in(ordered_pair(A!6, B!5), cartesian_product2(C!4, singleton(D!3))) | ((~in(A!6, C!4)) | (~in(B!5, singleton(D!3))))),
% 0.20/0.40      inference(unit_resolution,[status(thm)],[42, 41])).
% 0.20/0.40  tff(44,plain,
% 0.20/0.40      ((~in(A!6, C!4)) | (~in(B!5, singleton(D!3)))),
% 0.20/0.40      inference(unit_resolution,[status(thm)],[43, 29])).
% 0.20/0.40  tff(45,plain,
% 0.20/0.40      ((~((~in(A!6, C!4)) | (~in(B!5, singleton(D!3))))) | (~in(A!6, C!4)) | (~in(B!5, singleton(D!3)))),
% 0.20/0.40      inference(tautology,[status(thm)],[])).
% 0.20/0.40  tff(46,plain,
% 0.20/0.40      (~in(B!5, singleton(D!3))),
% 0.20/0.40      inference(unit_resolution,[status(thm)],[45, 44, 9])).
% 0.20/0.40  tff(47,plain,
% 0.20/0.40      (~in(D!3, singleton(D!3))),
% 0.20/0.40      inference(modus_ponens,[status(thm)],[46, 7])).
% 0.20/0.40  tff(48,plain,
% 0.20/0.40      (^[A: $i, B: $i, C: $i] : refl((~((~((~(B = singleton(A))) | (in(C, B) <=> (C = A)))) | (~((B = singleton(A)) | ((~in(tptp_fun_C_0(B, A), B)) <=> (tptp_fun_C_0(B, A) = A)))))) <=> (~((~((~(B = singleton(A))) | (in(C, B) <=> (C = A)))) | (~((B = singleton(A)) | ((~in(tptp_fun_C_0(B, A), B)) <=> (tptp_fun_C_0(B, A) = A)))))))),
% 0.20/0.40      inference(bind,[status(th)],[])).
% 0.20/0.40  tff(49,plain,
% 0.20/0.40      (![A: $i, B: $i, C: $i] : (~((~((~(B = singleton(A))) | (in(C, B) <=> (C = A)))) | (~((B = singleton(A)) | ((~in(tptp_fun_C_0(B, A), B)) <=> (tptp_fun_C_0(B, A) = A)))))) <=> ![A: $i, B: $i, C: $i] : (~((~((~(B = singleton(A))) | (in(C, B) <=> (C = A)))) | (~((B = singleton(A)) | ((~in(tptp_fun_C_0(B, A), B)) <=> (tptp_fun_C_0(B, A) = A))))))),
% 0.20/0.40      inference(quant_intro,[status(thm)],[48])).
% 0.20/0.40  tff(50,plain,
% 0.20/0.40      (![A: $i, B: $i] : ![C: $i] : (~((~((~(B = singleton(A))) | (in(C, B) <=> (C = A)))) | (~((B = singleton(A)) | ((~in(tptp_fun_C_0(B, A), B)) <=> (tptp_fun_C_0(B, A) = A)))))) <=> ![A: $i, B: $i, C: $i] : (~((~((~(B = singleton(A))) | (in(C, B) <=> (C = A)))) | (~((B = singleton(A)) | ((~in(tptp_fun_C_0(B, A), B)) <=> (tptp_fun_C_0(B, A) = A))))))),
% 0.20/0.40      inference(pull_quant,[status(thm)],[])).
% 0.20/0.40  tff(51,plain,
% 0.20/0.40      (^[A: $i, B: $i] : trans(monotonicity(trans(monotonicity(trans(monotonicity(pull_quant(((~(B = singleton(A))) | ![C: $i] : (in(C, B) <=> (C = A))) <=> ![C: $i] : ((~(B = singleton(A))) | (in(C, B) <=> (C = A)))), ((~((~(B = singleton(A))) | ![C: $i] : (in(C, B) <=> (C = A)))) <=> (~![C: $i] : ((~(B = singleton(A))) | (in(C, B) <=> (C = A)))))), pull_quant((~![C: $i] : ((~(B = singleton(A))) | (in(C, B) <=> (C = A)))) <=> ?[C: $i] : (~((~(B = singleton(A))) | (in(C, B) <=> (C = A))))), ((~((~(B = singleton(A))) | ![C: $i] : (in(C, B) <=> (C = A)))) <=> ?[C: $i] : (~((~(B = singleton(A))) | (in(C, B) <=> (C = A)))))), (((~((~(B = singleton(A))) | ![C: $i] : (in(C, B) <=> (C = A)))) | (~((B = singleton(A)) | ((~in(tptp_fun_C_0(B, A), B)) <=> (tptp_fun_C_0(B, A) = A))))) <=> (?[C: $i] : (~((~(B = singleton(A))) | (in(C, B) <=> (C = A)))) | (~((B = singleton(A)) | ((~in(tptp_fun_C_0(B, A), B)) <=> (tptp_fun_C_0(B, A) = A))))))), pull_quant((?[C: $i] : (~((~(B = singleton(A))) | (in(C, B) <=> (C = A)))) | (~((B = singleton(A)) | ((~in(tptp_fun_C_0(B, A), B)) <=> (tptp_fun_C_0(B, A) = A))))) <=> ?[C: $i] : ((~((~(B = singleton(A))) | (in(C, B) <=> (C = A)))) | (~((B = singleton(A)) | ((~in(tptp_fun_C_0(B, A), B)) <=> (tptp_fun_C_0(B, A) = A)))))), (((~((~(B = singleton(A))) | ![C: $i] : (in(C, B) <=> (C = A)))) | (~((B = singleton(A)) | ((~in(tptp_fun_C_0(B, A), B)) <=> (tptp_fun_C_0(B, A) = A))))) <=> ?[C: $i] : ((~((~(B = singleton(A))) | (in(C, B) <=> (C = A)))) | (~((B = singleton(A)) | ((~in(tptp_fun_C_0(B, A), B)) <=> (tptp_fun_C_0(B, A) = A))))))), ((~((~((~(B = singleton(A))) | ![C: $i] : (in(C, B) <=> (C = A)))) | (~((B = singleton(A)) | ((~in(tptp_fun_C_0(B, A), B)) <=> (tptp_fun_C_0(B, A) = A)))))) <=> (~?[C: $i] : ((~((~(B = singleton(A))) | (in(C, B) <=> (C = A)))) | (~((B = singleton(A)) | ((~in(tptp_fun_C_0(B, A), B)) <=> (tptp_fun_C_0(B, A) = A)))))))), pull_quant((~?[C: $i] : ((~((~(B = singleton(A))) | (in(C, B) <=> (C = A)))) | (~((B = singleton(A)) | ((~in(tptp_fun_C_0(B, A), B)) <=> (tptp_fun_C_0(B, A) = A)))))) <=> ![C: $i] : (~((~((~(B = singleton(A))) | (in(C, B) <=> (C = A)))) | (~((B = singleton(A)) | ((~in(tptp_fun_C_0(B, A), B)) <=> (tptp_fun_C_0(B, A) = A))))))), ((~((~((~(B = singleton(A))) | ![C: $i] : (in(C, B) <=> (C = A)))) | (~((B = singleton(A)) | ((~in(tptp_fun_C_0(B, A), B)) <=> (tptp_fun_C_0(B, A) = A)))))) <=> ![C: $i] : (~((~((~(B = singleton(A))) | (in(C, B) <=> (C = A)))) | (~((B = singleton(A)) | ((~in(tptp_fun_C_0(B, A), B)) <=> (tptp_fun_C_0(B, A) = A))))))))),
% 0.20/0.40      inference(bind,[status(th)],[])).
% 0.20/0.40  tff(52,plain,
% 0.20/0.40      (![A: $i, B: $i] : (~((~((~(B = singleton(A))) | ![C: $i] : (in(C, B) <=> (C = A)))) | (~((B = singleton(A)) | ((~in(tptp_fun_C_0(B, A), B)) <=> (tptp_fun_C_0(B, A) = A)))))) <=> ![A: $i, B: $i] : ![C: $i] : (~((~((~(B = singleton(A))) | (in(C, B) <=> (C = A)))) | (~((B = singleton(A)) | ((~in(tptp_fun_C_0(B, A), B)) <=> (tptp_fun_C_0(B, A) = A))))))),
% 0.20/0.40      inference(quant_intro,[status(thm)],[51])).
% 0.20/0.40  tff(53,plain,
% 0.20/0.40      (![A: $i, B: $i] : (~((~((~(B = singleton(A))) | ![C: $i] : (in(C, B) <=> (C = A)))) | (~((B = singleton(A)) | ((~in(tptp_fun_C_0(B, A), B)) <=> (tptp_fun_C_0(B, A) = A)))))) <=> ![A: $i, B: $i, C: $i] : (~((~((~(B = singleton(A))) | (in(C, B) <=> (C = A)))) | (~((B = singleton(A)) | ((~in(tptp_fun_C_0(B, A), B)) <=> (tptp_fun_C_0(B, A) = A))))))),
% 0.20/0.40      inference(transitivity,[status(thm)],[52, 50])).
% 0.20/0.40  tff(54,plain,
% 0.20/0.40      (![A: $i, B: $i] : (~((~((~(B = singleton(A))) | ![C: $i] : (in(C, B) <=> (C = A)))) | (~((B = singleton(A)) | ((~in(tptp_fun_C_0(B, A), B)) <=> (tptp_fun_C_0(B, A) = A)))))) <=> ![A: $i, B: $i, C: $i] : (~((~((~(B = singleton(A))) | (in(C, B) <=> (C = A)))) | (~((B = singleton(A)) | ((~in(tptp_fun_C_0(B, A), B)) <=> (tptp_fun_C_0(B, A) = A))))))),
% 0.20/0.40      inference(transitivity,[status(thm)],[53, 49])).
% 0.20/0.40  tff(55,plain,
% 0.20/0.40      (^[A: $i, B: $i] : rewrite((~((~((~(B = singleton(A))) | ![C: $i] : (in(C, B) <=> (C = A)))) | (~((B = singleton(A)) | ((~in(tptp_fun_C_0(B, A), B)) <=> (tptp_fun_C_0(B, A) = A)))))) <=> (~((~((~(B = singleton(A))) | ![C: $i] : (in(C, B) <=> (C = A)))) | (~((B = singleton(A)) | ((~in(tptp_fun_C_0(B, A), B)) <=> (tptp_fun_C_0(B, A) = A)))))))),
% 0.20/0.40      inference(bind,[status(th)],[])).
% 0.20/0.40  tff(56,plain,
% 0.20/0.40      (![A: $i, B: $i] : (~((~((~(B = singleton(A))) | ![C: $i] : (in(C, B) <=> (C = A)))) | (~((B = singleton(A)) | ((~in(tptp_fun_C_0(B, A), B)) <=> (tptp_fun_C_0(B, A) = A)))))) <=> ![A: $i, B: $i] : (~((~((~(B = singleton(A))) | ![C: $i] : (in(C, B) <=> (C = A)))) | (~((B = singleton(A)) | ((~in(tptp_fun_C_0(B, A), B)) <=> (tptp_fun_C_0(B, A) = A))))))),
% 0.20/0.40      inference(quant_intro,[status(thm)],[55])).
% 0.20/0.40  tff(57,plain,
% 0.20/0.40      (![A: $i, B: $i] : (~((~((~(B = singleton(A))) | ![C: $i] : (in(C, B) <=> (C = A)))) | (~((B = singleton(A)) | ((~in(tptp_fun_C_0(B, A), B)) <=> (tptp_fun_C_0(B, A) = A)))))) <=> ![A: $i, B: $i, C: $i] : (~((~((~(B = singleton(A))) | (in(C, B) <=> (C = A)))) | (~((B = singleton(A)) | ((~in(tptp_fun_C_0(B, A), B)) <=> (tptp_fun_C_0(B, A) = A))))))),
% 0.20/0.40      inference(transitivity,[status(thm)],[56, 54])).
% 0.20/0.40  tff(58,plain,
% 0.20/0.40      (^[A: $i, B: $i] : trans(monotonicity(rewrite(((~(B = singleton(A))) | ![C: $i] : (in(C, B) <=> (C = A))) <=> ((~(B = singleton(A))) | ![C: $i] : (in(C, B) <=> (C = A)))), ((((~(B = singleton(A))) | ![C: $i] : (in(C, B) <=> (C = A))) & ((B = singleton(A)) | ((~in(tptp_fun_C_0(B, A), B)) <=> (tptp_fun_C_0(B, A) = A)))) <=> (((~(B = singleton(A))) | ![C: $i] : (in(C, B) <=> (C = A))) & ((B = singleton(A)) | ((~in(tptp_fun_C_0(B, A), B)) <=> (tptp_fun_C_0(B, A) = A)))))), rewrite((((~(B = singleton(A))) | ![C: $i] : (in(C, B) <=> (C = A))) & ((B = singleton(A)) | ((~in(tptp_fun_C_0(B, A), B)) <=> (tptp_fun_C_0(B, A) = A)))) <=> (~((~((~(B = singleton(A))) | ![C: $i] : (in(C, B) <=> (C = A)))) | (~((B = singleton(A)) | ((~in(tptp_fun_C_0(B, A), B)) <=> (tptp_fun_C_0(B, A) = A))))))), ((((~(B = singleton(A))) | ![C: $i] : (in(C, B) <=> (C = A))) & ((B = singleton(A)) | ((~in(tptp_fun_C_0(B, A), B)) <=> (tptp_fun_C_0(B, A) = A)))) <=> (~((~((~(B = singleton(A))) | ![C: $i] : (in(C, B) <=> (C = A)))) | (~((B = singleton(A)) | ((~in(tptp_fun_C_0(B, A), B)) <=> (tptp_fun_C_0(B, A) = A))))))))),
% 0.20/0.40      inference(bind,[status(th)],[])).
% 0.20/0.40  tff(59,plain,
% 0.20/0.40      (![A: $i, B: $i] : (((~(B = singleton(A))) | ![C: $i] : (in(C, B) <=> (C = A))) & ((B = singleton(A)) | ((~in(tptp_fun_C_0(B, A), B)) <=> (tptp_fun_C_0(B, A) = A)))) <=> ![A: $i, B: $i] : (~((~((~(B = singleton(A))) | ![C: $i] : (in(C, B) <=> (C = A)))) | (~((B = singleton(A)) | ((~in(tptp_fun_C_0(B, A), B)) <=> (tptp_fun_C_0(B, A) = A))))))),
% 0.20/0.40      inference(quant_intro,[status(thm)],[58])).
% 0.20/0.40  tff(60,plain,
% 0.20/0.40      (^[A: $i, B: $i] : rewrite((((~(B = singleton(A))) | ![C: $i] : (in(C, B) <=> (C = A))) & ((B = singleton(A)) | (~(in(tptp_fun_C_0(B, A), B) <=> (tptp_fun_C_0(B, A) = A))))) <=> (((~(B = singleton(A))) | ![C: $i] : (in(C, B) <=> (C = A))) & ((B = singleton(A)) | ((~in(tptp_fun_C_0(B, A), B)) <=> (tptp_fun_C_0(B, A) = A)))))),
% 0.20/0.40      inference(bind,[status(th)],[])).
% 0.20/0.40  tff(61,plain,
% 0.20/0.40      (![A: $i, B: $i] : (((~(B = singleton(A))) | ![C: $i] : (in(C, B) <=> (C = A))) & ((B = singleton(A)) | (~(in(tptp_fun_C_0(B, A), B) <=> (tptp_fun_C_0(B, A) = A))))) <=> ![A: $i, B: $i] : (((~(B = singleton(A))) | ![C: $i] : (in(C, B) <=> (C = A))) & ((B = singleton(A)) | ((~in(tptp_fun_C_0(B, A), B)) <=> (tptp_fun_C_0(B, A) = A))))),
% 0.20/0.40      inference(quant_intro,[status(thm)],[60])).
% 0.20/0.40  tff(62,plain,
% 0.20/0.40      (![A: $i, B: $i] : ((B = singleton(A)) <=> ![C: $i] : (in(C, B) <=> (C = A))) <=> ![A: $i, B: $i] : ((B = singleton(A)) <=> ![C: $i] : (in(C, B) <=> (C = A)))),
% 0.20/0.40      inference(rewrite,[status(thm)],[])).
% 0.20/0.40  tff(63,axiom,(![A: $i, B: $i] : ((B = singleton(A)) <=> ![C: $i] : (in(C, B) <=> (C = A)))), file('/export/starexec/sandbox/benchmark/theBenchmark.p','d1_tarski')).
% 0.20/0.40  tff(64,plain,
% 0.20/0.40      (![A: $i, B: $i] : ((B = singleton(A)) <=> ![C: $i] : (in(C, B) <=> (C = A)))),
% 0.20/0.40      inference(modus_ponens,[status(thm)],[63, 62])).
% 0.20/0.40  tff(65,plain,(
% 0.20/0.40      ![A: $i, B: $i] : (((~(B = singleton(A))) | ![C: $i] : (in(C, B) <=> (C = A))) & ((B = singleton(A)) | (~(in(tptp_fun_C_0(B, A), B) <=> (tptp_fun_C_0(B, A) = A)))))),
% 0.20/0.40      inference(skolemize,[status(sab)],[64])).
% 0.20/0.40  tff(66,plain,
% 0.20/0.40      (![A: $i, B: $i] : (((~(B = singleton(A))) | ![C: $i] : (in(C, B) <=> (C = A))) & ((B = singleton(A)) | ((~in(tptp_fun_C_0(B, A), B)) <=> (tptp_fun_C_0(B, A) = A))))),
% 0.20/0.40      inference(modus_ponens,[status(thm)],[65, 61])).
% 0.20/0.40  tff(67,plain,
% 0.20/0.40      (![A: $i, B: $i] : (~((~((~(B = singleton(A))) | ![C: $i] : (in(C, B) <=> (C = A)))) | (~((B = singleton(A)) | ((~in(tptp_fun_C_0(B, A), B)) <=> (tptp_fun_C_0(B, A) = A))))))),
% 0.20/0.40      inference(modus_ponens,[status(thm)],[66, 59])).
% 0.20/0.40  tff(68,plain,
% 0.20/0.40      (![A: $i, B: $i, C: $i] : (~((~((~(B = singleton(A))) | (in(C, B) <=> (C = A)))) | (~((B = singleton(A)) | ((~in(tptp_fun_C_0(B, A), B)) <=> (tptp_fun_C_0(B, A) = A))))))),
% 0.20/0.40      inference(modus_ponens,[status(thm)],[67, 57])).
% 0.20/0.40  tff(69,plain,
% 0.20/0.40      (((~![A: $i, B: $i, C: $i] : (~((~((~(B = singleton(A))) | (in(C, B) <=> (C = A)))) | (~((B = singleton(A)) | ((~in(tptp_fun_C_0(B, A), B)) <=> (tptp_fun_C_0(B, A) = A))))))) | in(D!3, singleton(D!3))) <=> ((~![A: $i, B: $i, C: $i] : (~((~((~(B = singleton(A))) | (in(C, B) <=> (C = A)))) | (~((B = singleton(A)) | ((~in(tptp_fun_C_0(B, A), B)) <=> (tptp_fun_C_0(B, A) = A))))))) | in(D!3, singleton(D!3)))),
% 0.20/0.40      inference(rewrite,[status(thm)],[])).
% 0.20/0.40  tff(70,plain,
% 0.20/0.40      ((~(~in(D!3, singleton(D!3)))) <=> in(D!3, singleton(D!3))),
% 0.20/0.40      inference(rewrite,[status(thm)],[])).
% 0.20/0.40  tff(71,plain,
% 0.20/0.40      (((~in(D!3, singleton(D!3))) | $false) <=> (~in(D!3, singleton(D!3)))),
% 0.20/0.41      inference(rewrite,[status(thm)],[])).
% 0.20/0.41  tff(72,plain,
% 0.20/0.41      ((~$true) <=> $false),
% 0.20/0.41      inference(rewrite,[status(thm)],[])).
% 0.20/0.41  tff(73,plain,
% 0.20/0.41      (($true | ((~in(tptp_fun_C_0(singleton(D!3), D!3), singleton(D!3))) <=> (tptp_fun_C_0(singleton(D!3), D!3) = D!3))) <=> $true),
% 0.20/0.41      inference(rewrite,[status(thm)],[])).
% 0.20/0.41  tff(74,plain,
% 0.20/0.41      ((singleton(D!3) = singleton(D!3)) <=> $true),
% 0.20/0.41      inference(rewrite,[status(thm)],[])).
% 0.20/0.41  tff(75,plain,
% 0.20/0.41      (((singleton(D!3) = singleton(D!3)) | ((~in(tptp_fun_C_0(singleton(D!3), D!3), singleton(D!3))) <=> (tptp_fun_C_0(singleton(D!3), D!3) = D!3))) <=> ($true | ((~in(tptp_fun_C_0(singleton(D!3), D!3), singleton(D!3))) <=> (tptp_fun_C_0(singleton(D!3), D!3) = D!3)))),
% 0.20/0.41      inference(monotonicity,[status(thm)],[74])).
% 0.20/0.41  tff(76,plain,
% 0.20/0.41      (((singleton(D!3) = singleton(D!3)) | ((~in(tptp_fun_C_0(singleton(D!3), D!3), singleton(D!3))) <=> (tptp_fun_C_0(singleton(D!3), D!3) = D!3))) <=> $true),
% 0.20/0.41      inference(transitivity,[status(thm)],[75, 73])).
% 0.20/0.41  tff(77,plain,
% 0.20/0.41      ((~((singleton(D!3) = singleton(D!3)) | ((~in(tptp_fun_C_0(singleton(D!3), D!3), singleton(D!3))) <=> (tptp_fun_C_0(singleton(D!3), D!3) = D!3)))) <=> (~$true)),
% 0.20/0.41      inference(monotonicity,[status(thm)],[76])).
% 0.20/0.41  tff(78,plain,
% 0.20/0.41      ((~((singleton(D!3) = singleton(D!3)) | ((~in(tptp_fun_C_0(singleton(D!3), D!3), singleton(D!3))) <=> (tptp_fun_C_0(singleton(D!3), D!3) = D!3)))) <=> $false),
% 0.20/0.41      inference(transitivity,[status(thm)],[77, 72])).
% 0.20/0.41  tff(79,plain,
% 0.20/0.41      ((~((~(singleton(D!3) = singleton(D!3))) | (in(D!3, singleton(D!3)) <=> (D!3 = D!3)))) <=> (~in(D!3, singleton(D!3)))),
% 0.20/0.41      inference(rewrite,[status(thm)],[])).
% 0.20/0.41  tff(80,plain,
% 0.20/0.41      (((~((~(singleton(D!3) = singleton(D!3))) | (in(D!3, singleton(D!3)) <=> (D!3 = D!3)))) | (~((singleton(D!3) = singleton(D!3)) | ((~in(tptp_fun_C_0(singleton(D!3), D!3), singleton(D!3))) <=> (tptp_fun_C_0(singleton(D!3), D!3) = D!3))))) <=> ((~in(D!3, singleton(D!3))) | $false)),
% 0.20/0.41      inference(monotonicity,[status(thm)],[79, 78])).
% 0.20/0.41  tff(81,plain,
% 0.20/0.41      (((~((~(singleton(D!3) = singleton(D!3))) | (in(D!3, singleton(D!3)) <=> (D!3 = D!3)))) | (~((singleton(D!3) = singleton(D!3)) | ((~in(tptp_fun_C_0(singleton(D!3), D!3), singleton(D!3))) <=> (tptp_fun_C_0(singleton(D!3), D!3) = D!3))))) <=> (~in(D!3, singleton(D!3)))),
% 0.20/0.41      inference(transitivity,[status(thm)],[80, 71])).
% 0.20/0.41  tff(82,plain,
% 0.20/0.41      ((~((~((~(singleton(D!3) = singleton(D!3))) | (in(D!3, singleton(D!3)) <=> (D!3 = D!3)))) | (~((singleton(D!3) = singleton(D!3)) | ((~in(tptp_fun_C_0(singleton(D!3), D!3), singleton(D!3))) <=> (tptp_fun_C_0(singleton(D!3), D!3) = D!3)))))) <=> (~(~in(D!3, singleton(D!3))))),
% 0.20/0.41      inference(monotonicity,[status(thm)],[81])).
% 0.20/0.41  tff(83,plain,
% 0.20/0.41      ((~((~((~(singleton(D!3) = singleton(D!3))) | (in(D!3, singleton(D!3)) <=> (D!3 = D!3)))) | (~((singleton(D!3) = singleton(D!3)) | ((~in(tptp_fun_C_0(singleton(D!3), D!3), singleton(D!3))) <=> (tptp_fun_C_0(singleton(D!3), D!3) = D!3)))))) <=> in(D!3, singleton(D!3))),
% 0.20/0.41      inference(transitivity,[status(thm)],[82, 70])).
% 0.20/0.41  tff(84,plain,
% 0.20/0.41      (((~![A: $i, B: $i, C: $i] : (~((~((~(B = singleton(A))) | (in(C, B) <=> (C = A)))) | (~((B = singleton(A)) | ((~in(tptp_fun_C_0(B, A), B)) <=> (tptp_fun_C_0(B, A) = A))))))) | (~((~((~(singleton(D!3) = singleton(D!3))) | (in(D!3, singleton(D!3)) <=> (D!3 = D!3)))) | (~((singleton(D!3) = singleton(D!3)) | ((~in(tptp_fun_C_0(singleton(D!3), D!3), singleton(D!3))) <=> (tptp_fun_C_0(singleton(D!3), D!3) = D!3))))))) <=> ((~![A: $i, B: $i, C: $i] : (~((~((~(B = singleton(A))) | (in(C, B) <=> (C = A)))) | (~((B = singleton(A)) | ((~in(tptp_fun_C_0(B, A), B)) <=> (tptp_fun_C_0(B, A) = A))))))) | in(D!3, singleton(D!3)))),
% 0.20/0.41      inference(monotonicity,[status(thm)],[83])).
% 0.20/0.41  tff(85,plain,
% 0.20/0.41      (((~![A: $i, B: $i, C: $i] : (~((~((~(B = singleton(A))) | (in(C, B) <=> (C = A)))) | (~((B = singleton(A)) | ((~in(tptp_fun_C_0(B, A), B)) <=> (tptp_fun_C_0(B, A) = A))))))) | (~((~((~(singleton(D!3) = singleton(D!3))) | (in(D!3, singleton(D!3)) <=> (D!3 = D!3)))) | (~((singleton(D!3) = singleton(D!3)) | ((~in(tptp_fun_C_0(singleton(D!3), D!3), singleton(D!3))) <=> (tptp_fun_C_0(singleton(D!3), D!3) = D!3))))))) <=> ((~![A: $i, B: $i, C: $i] : (~((~((~(B = singleton(A))) | (in(C, B) <=> (C = A)))) | (~((B = singleton(A)) | ((~in(tptp_fun_C_0(B, A), B)) <=> (tptp_fun_C_0(B, A) = A))))))) | in(D!3, singleton(D!3)))),
% 0.20/0.41      inference(transitivity,[status(thm)],[84, 69])).
% 0.20/0.41  tff(86,plain,
% 0.20/0.41      ((~![A: $i, B: $i, C: $i] : (~((~((~(B = singleton(A))) | (in(C, B) <=> (C = A)))) | (~((B = singleton(A)) | ((~in(tptp_fun_C_0(B, A), B)) <=> (tptp_fun_C_0(B, A) = A))))))) | (~((~((~(singleton(D!3) = singleton(D!3))) | (in(D!3, singleton(D!3)) <=> (D!3 = D!3)))) | (~((singleton(D!3) = singleton(D!3)) | ((~in(tptp_fun_C_0(singleton(D!3), D!3), singleton(D!3))) <=> (tptp_fun_C_0(singleton(D!3), D!3) = D!3))))))),
% 0.20/0.41      inference(quant_inst,[status(thm)],[])).
% 0.20/0.41  tff(87,plain,
% 0.20/0.41      ((~![A: $i, B: $i, C: $i] : (~((~((~(B = singleton(A))) | (in(C, B) <=> (C = A)))) | (~((B = singleton(A)) | ((~in(tptp_fun_C_0(B, A), B)) <=> (tptp_fun_C_0(B, A) = A))))))) | in(D!3, singleton(D!3))),
% 0.20/0.41      inference(modus_ponens,[status(thm)],[86, 85])).
% 0.20/0.41  tff(88,plain,
% 0.20/0.41      (in(D!3, singleton(D!3))),
% 0.20/0.41      inference(unit_resolution,[status(thm)],[87, 68])).
% 0.20/0.41  tff(89,plain,
% 0.20/0.41      ($false),
% 0.20/0.41      inference(unit_resolution,[status(thm)],[88, 47])).
% 0.20/0.41  tff(90,plain,((~in(A!6, C!4)) | (~(B!5 = D!3))), inference(lemma,lemma(discharge,[]))).
% 0.20/0.41  tff(91,plain,
% 0.20/0.41      (in(ordered_pair(A!6, B!5), cartesian_product2(C!4, singleton(D!3))) | (~((~in(A!6, C!4)) | (~(B!5 = D!3)))) | (~(in(ordered_pair(A!6, B!5), cartesian_product2(C!4, singleton(D!3))) <=> ((~in(A!6, C!4)) | (~(B!5 = D!3)))))),
% 0.20/0.41      inference(tautology,[status(thm)],[])).
% 0.20/0.41  tff(92,plain,
% 0.20/0.41      (in(ordered_pair(A!6, B!5), cartesian_product2(C!4, singleton(D!3))) | (~((~in(A!6, C!4)) | (~(B!5 = D!3))))),
% 0.20/0.41      inference(unit_resolution,[status(thm)],[91, 26])).
% 0.20/0.41  tff(93,plain,
% 0.20/0.41      (in(ordered_pair(A!6, B!5), cartesian_product2(C!4, singleton(D!3)))),
% 0.20/0.41      inference(unit_resolution,[status(thm)],[92, 90])).
% 0.20/0.41  tff(94,plain,
% 0.20/0.41      ((~(in(ordered_pair(A!6, B!5), cartesian_product2(C!4, singleton(D!3))) <=> (~((~in(A!6, C!4)) | (~in(B!5, singleton(D!3))))))) | (~in(ordered_pair(A!6, B!5), cartesian_product2(C!4, singleton(D!3)))) | (~((~in(A!6, C!4)) | (~in(B!5, singleton(D!3)))))),
% 0.20/0.41      inference(tautology,[status(thm)],[])).
% 0.20/0.41  tff(95,plain,
% 0.20/0.41      ((~in(ordered_pair(A!6, B!5), cartesian_product2(C!4, singleton(D!3)))) | (~((~in(A!6, C!4)) | (~in(B!5, singleton(D!3)))))),
% 0.20/0.41      inference(unit_resolution,[status(thm)],[94, 41])).
% 0.20/0.41  tff(96,plain,
% 0.20/0.41      (~((~in(A!6, C!4)) | (~in(B!5, singleton(D!3))))),
% 0.20/0.41      inference(unit_resolution,[status(thm)],[95, 93])).
% 0.20/0.41  tff(97,plain,
% 0.20/0.41      (((~in(A!6, C!4)) | (~in(B!5, singleton(D!3)))) | in(B!5, singleton(D!3))),
% 0.20/0.41      inference(tautology,[status(thm)],[])).
% 0.20/0.41  tff(98,plain,
% 0.20/0.41      (in(B!5, singleton(D!3))),
% 0.20/0.41      inference(unit_resolution,[status(thm)],[97, 96])).
% 0.20/0.41  tff(99,plain,
% 0.20/0.41      (((~in(A!6, C!4)) | (~in(B!5, singleton(D!3)))) | in(A!6, C!4)),
% 0.20/0.41      inference(tautology,[status(thm)],[])).
% 0.20/0.41  tff(100,plain,
% 0.20/0.41      (in(A!6, C!4)),
% 0.20/0.41      inference(unit_resolution,[status(thm)],[99, 96])).
% 0.20/0.41  tff(101,plain,
% 0.20/0.41      ((~((~in(A!6, C!4)) | (~(B!5 = D!3)))) | (~in(A!6, C!4)) | (~(B!5 = D!3))),
% 0.20/0.41      inference(tautology,[status(thm)],[])).
% 0.20/0.41  tff(102,plain,
% 0.20/0.41      (~(B!5 = D!3)),
% 0.20/0.41      inference(unit_resolution,[status(thm)],[101, 100, 90])).
% 0.20/0.41  tff(103,plain,
% 0.20/0.41      ((~(in(B!5, singleton(D!3)) <=> (B!5 = D!3))) | (~in(B!5, singleton(D!3))) | (B!5 = D!3)),
% 0.20/0.41      inference(tautology,[status(thm)],[])).
% 0.20/0.41  tff(104,plain,
% 0.20/0.41      (~(in(B!5, singleton(D!3)) <=> (B!5 = D!3))),
% 0.20/0.41      inference(unit_resolution,[status(thm)],[103, 102, 98])).
% 0.20/0.41  tff(105,plain,
% 0.20/0.41      (((~![A: $i, B: $i, C: $i] : (~((~((~(B = singleton(A))) | (in(C, B) <=> (C = A)))) | (~((B = singleton(A)) | ((~in(tptp_fun_C_0(B, A), B)) <=> (tptp_fun_C_0(B, A) = A))))))) | (in(B!5, singleton(D!3)) <=> (B!5 = D!3))) <=> ((~![A: $i, B: $i, C: $i] : (~((~((~(B = singleton(A))) | (in(C, B) <=> (C = A)))) | (~((B = singleton(A)) | ((~in(tptp_fun_C_0(B, A), B)) <=> (tptp_fun_C_0(B, A) = A))))))) | (in(B!5, singleton(D!3)) <=> (B!5 = D!3)))),
% 0.20/0.41      inference(rewrite,[status(thm)],[])).
% 0.20/0.41  tff(106,plain,
% 0.20/0.41      ((~((~in(B!5, singleton(D!3))) <=> (B!5 = D!3))) <=> (in(B!5, singleton(D!3)) <=> (B!5 = D!3))),
% 0.20/0.41      inference(rewrite,[status(thm)],[])).
% 0.20/0.41  tff(107,plain,
% 0.20/0.41      ((((~in(B!5, singleton(D!3))) <=> (B!5 = D!3)) | $false) <=> ((~in(B!5, singleton(D!3))) <=> (B!5 = D!3))),
% 0.20/0.41      inference(rewrite,[status(thm)],[])).
% 0.20/0.41  tff(108,plain,
% 0.20/0.41      ((~(in(B!5, singleton(D!3)) <=> (B!5 = D!3))) <=> ((~in(B!5, singleton(D!3))) <=> (B!5 = D!3))),
% 0.20/0.41      inference(rewrite,[status(thm)],[])).
% 0.20/0.41  tff(109,plain,
% 0.20/0.41      (($false | (in(B!5, singleton(D!3)) <=> (B!5 = D!3))) <=> (in(B!5, singleton(D!3)) <=> (B!5 = D!3))),
% 0.20/0.41      inference(rewrite,[status(thm)],[])).
% 0.20/0.41  tff(110,plain,
% 0.20/0.41      ((~(singleton(D!3) = singleton(D!3))) <=> (~$true)),
% 0.20/0.41      inference(monotonicity,[status(thm)],[74])).
% 0.20/0.41  tff(111,plain,
% 0.20/0.41      ((~(singleton(D!3) = singleton(D!3))) <=> $false),
% 0.20/0.41      inference(transitivity,[status(thm)],[110, 72])).
% 0.20/0.41  tff(112,plain,
% 0.20/0.41      (((~(singleton(D!3) = singleton(D!3))) | (in(B!5, singleton(D!3)) <=> (B!5 = D!3))) <=> ($false | (in(B!5, singleton(D!3)) <=> (B!5 = D!3)))),
% 0.20/0.41      inference(monotonicity,[status(thm)],[111])).
% 0.20/0.41  tff(113,plain,
% 0.20/0.41      (((~(singleton(D!3) = singleton(D!3))) | (in(B!5, singleton(D!3)) <=> (B!5 = D!3))) <=> (in(B!5, singleton(D!3)) <=> (B!5 = D!3))),
% 0.20/0.41      inference(transitivity,[status(thm)],[112, 109])).
% 0.20/0.41  tff(114,plain,
% 0.20/0.41      ((~((~(singleton(D!3) = singleton(D!3))) | (in(B!5, singleton(D!3)) <=> (B!5 = D!3)))) <=> (~(in(B!5, singleton(D!3)) <=> (B!5 = D!3)))),
% 0.20/0.41      inference(monotonicity,[status(thm)],[113])).
% 0.20/0.41  tff(115,plain,
% 0.20/0.41      ((~((~(singleton(D!3) = singleton(D!3))) | (in(B!5, singleton(D!3)) <=> (B!5 = D!3)))) <=> ((~in(B!5, singleton(D!3))) <=> (B!5 = D!3))),
% 0.20/0.41      inference(transitivity,[status(thm)],[114, 108])).
% 0.20/0.41  tff(116,plain,
% 0.20/0.41      (((~((~(singleton(D!3) = singleton(D!3))) | (in(B!5, singleton(D!3)) <=> (B!5 = D!3)))) | (~((singleton(D!3) = singleton(D!3)) | ((~in(tptp_fun_C_0(singleton(D!3), D!3), singleton(D!3))) <=> (tptp_fun_C_0(singleton(D!3), D!3) = D!3))))) <=> (((~in(B!5, singleton(D!3))) <=> (B!5 = D!3)) | $false)),
% 0.20/0.41      inference(monotonicity,[status(thm)],[115, 78])).
% 0.20/0.41  tff(117,plain,
% 0.20/0.41      (((~((~(singleton(D!3) = singleton(D!3))) | (in(B!5, singleton(D!3)) <=> (B!5 = D!3)))) | (~((singleton(D!3) = singleton(D!3)) | ((~in(tptp_fun_C_0(singleton(D!3), D!3), singleton(D!3))) <=> (tptp_fun_C_0(singleton(D!3), D!3) = D!3))))) <=> ((~in(B!5, singleton(D!3))) <=> (B!5 = D!3))),
% 0.20/0.41      inference(transitivity,[status(thm)],[116, 107])).
% 0.20/0.41  tff(118,plain,
% 0.20/0.41      ((~((~((~(singleton(D!3) = singleton(D!3))) | (in(B!5, singleton(D!3)) <=> (B!5 = D!3)))) | (~((singleton(D!3) = singleton(D!3)) | ((~in(tptp_fun_C_0(singleton(D!3), D!3), singleton(D!3))) <=> (tptp_fun_C_0(singleton(D!3), D!3) = D!3)))))) <=> (~((~in(B!5, singleton(D!3))) <=> (B!5 = D!3)))),
% 0.20/0.41      inference(monotonicity,[status(thm)],[117])).
% 0.20/0.41  tff(119,plain,
% 0.20/0.41      ((~((~((~(singleton(D!3) = singleton(D!3))) | (in(B!5, singleton(D!3)) <=> (B!5 = D!3)))) | (~((singleton(D!3) = singleton(D!3)) | ((~in(tptp_fun_C_0(singleton(D!3), D!3), singleton(D!3))) <=> (tptp_fun_C_0(singleton(D!3), D!3) = D!3)))))) <=> (in(B!5, singleton(D!3)) <=> (B!5 = D!3))),
% 0.20/0.41      inference(transitivity,[status(thm)],[118, 106])).
% 0.20/0.41  tff(120,plain,
% 0.20/0.41      (((~![A: $i, B: $i, C: $i] : (~((~((~(B = singleton(A))) | (in(C, B) <=> (C = A)))) | (~((B = singleton(A)) | ((~in(tptp_fun_C_0(B, A), B)) <=> (tptp_fun_C_0(B, A) = A))))))) | (~((~((~(singleton(D!3) = singleton(D!3))) | (in(B!5, singleton(D!3)) <=> (B!5 = D!3)))) | (~((singleton(D!3) = singleton(D!3)) | ((~in(tptp_fun_C_0(singleton(D!3), D!3), singleton(D!3))) <=> (tptp_fun_C_0(singleton(D!3), D!3) = D!3))))))) <=> ((~![A: $i, B: $i, C: $i] : (~((~((~(B = singleton(A))) | (in(C, B) <=> (C = A)))) | (~((B = singleton(A)) | ((~in(tptp_fun_C_0(B, A), B)) <=> (tptp_fun_C_0(B, A) = A))))))) | (in(B!5, singleton(D!3)) <=> (B!5 = D!3)))),
% 0.20/0.41      inference(monotonicity,[status(thm)],[119])).
% 0.20/0.41  tff(121,plain,
% 0.20/0.41      (((~![A: $i, B: $i, C: $i] : (~((~((~(B = singleton(A))) | (in(C, B) <=> (C = A)))) | (~((B = singleton(A)) | ((~in(tptp_fun_C_0(B, A), B)) <=> (tptp_fun_C_0(B, A) = A))))))) | (~((~((~(singleton(D!3) = singleton(D!3))) | (in(B!5, singleton(D!3)) <=> (B!5 = D!3)))) | (~((singleton(D!3) = singleton(D!3)) | ((~in(tptp_fun_C_0(singleton(D!3), D!3), singleton(D!3))) <=> (tptp_fun_C_0(singleton(D!3), D!3) = D!3))))))) <=> ((~![A: $i, B: $i, C: $i] : (~((~((~(B = singleton(A))) | (in(C, B) <=> (C = A)))) | (~((B = singleton(A)) | ((~in(tptp_fun_C_0(B, A), B)) <=> (tptp_fun_C_0(B, A) = A))))))) | (in(B!5, singleton(D!3)) <=> (B!5 = D!3)))),
% 0.20/0.42      inference(transitivity,[status(thm)],[120, 105])).
% 0.20/0.42  tff(122,plain,
% 0.20/0.42      ((~![A: $i, B: $i, C: $i] : (~((~((~(B = singleton(A))) | (in(C, B) <=> (C = A)))) | (~((B = singleton(A)) | ((~in(tptp_fun_C_0(B, A), B)) <=> (tptp_fun_C_0(B, A) = A))))))) | (~((~((~(singleton(D!3) = singleton(D!3))) | (in(B!5, singleton(D!3)) <=> (B!5 = D!3)))) | (~((singleton(D!3) = singleton(D!3)) | ((~in(tptp_fun_C_0(singleton(D!3), D!3), singleton(D!3))) <=> (tptp_fun_C_0(singleton(D!3), D!3) = D!3))))))),
% 0.20/0.42      inference(quant_inst,[status(thm)],[])).
% 0.20/0.42  tff(123,plain,
% 0.20/0.42      ((~![A: $i, B: $i, C: $i] : (~((~((~(B = singleton(A))) | (in(C, B) <=> (C = A)))) | (~((B = singleton(A)) | ((~in(tptp_fun_C_0(B, A), B)) <=> (tptp_fun_C_0(B, A) = A))))))) | (in(B!5, singleton(D!3)) <=> (B!5 = D!3))),
% 0.20/0.42      inference(modus_ponens,[status(thm)],[122, 121])).
% 0.20/0.42  tff(124,plain,
% 0.20/0.42      ($false),
% 0.20/0.42      inference(unit_resolution,[status(thm)],[123, 68, 104])).
% 0.20/0.42  % SZS output end Proof
%------------------------------------------------------------------------------