TSTP Solution File: SET603+4 by Z3---4.8.9.0

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : Z3---4.8.9.0
% Problem  : SET603+4 : TPTP v8.1.0. Released v2.2.0.
% 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 05:07:15 EDT 2022

% Result   : Theorem 0.19s 0.41s
% Output   : Proof 0.19s
% Verified : 
% SZS Type : -

% Comments : 
%------------------------------------------------------------------------------
%----WARNING: Could not form TPTP format derivation
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.12/0.12  % Problem  : SET603+4 : TPTP v8.1.0. Released v2.2.0.
% 0.12/0.13  % Command  : z3_tptp -proof -model -t:%d -file:%s
% 0.12/0.34  % Computer : n022.cluster.edu
% 0.12/0.34  % Model    : x86_64 x86_64
% 0.12/0.34  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.12/0.34  % Memory   : 8042.1875MB
% 0.12/0.34  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.12/0.34  % CPULimit : 300
% 0.12/0.34  % WCLimit  : 300
% 0.12/0.34  % DateTime : Sat Sep  3 06:53:40 EDT 2022
% 0.12/0.34  % CPUTime  : 
% 0.12/0.35  Z3tptp [4.8.9.0] (c) 2006-20**. Microsoft Corp.
% 0.12/0.35  Usage: tptp [options] [-file:]file
% 0.12/0.35    -h, -?       prints this message.
% 0.12/0.35    -smt2        print SMT-LIB2 benchmark.
% 0.12/0.35    -m, -model   generate model.
% 0.12/0.35    -p, -proof   generate proof.
% 0.12/0.35    -c, -core    generate unsat core of named formulas.
% 0.12/0.35    -st, -statistics display statistics.
% 0.12/0.35    -t:timeout   set timeout (in second).
% 0.12/0.35    -smt2status  display status in smt2 format instead of SZS.
% 0.12/0.35    -check_status check the status produced by Z3 against annotation in benchmark.
% 0.12/0.35    -<param>:<value> configuration parameter and value.
% 0.12/0.35    -o:<output-file> file to place output in.
% 0.19/0.41  % SZS status Theorem
% 0.19/0.41  % SZS output start Proof
% 0.19/0.41  tff(member_type, type, (
% 0.19/0.41     member: ( $i * $i ) > $o)).
% 0.19/0.41  tff(empty_set_type, type, (
% 0.19/0.41     empty_set: $i)).
% 0.19/0.41  tff(tptp_fun_X_0_type, type, (
% 0.19/0.41     tptp_fun_X_0: ( $i * $i ) > $i)).
% 0.19/0.41  tff(tptp_fun_E_3_type, type, (
% 0.19/0.41     tptp_fun_E_3: $i)).
% 0.19/0.41  tff(difference_type, type, (
% 0.19/0.41     difference: ( $i * $i ) > $i)).
% 0.19/0.41  tff(subset_type, type, (
% 0.19/0.41     subset: ( $i * $i ) > $o)).
% 0.19/0.41  tff(equal_set_type, type, (
% 0.19/0.41     equal_set: ( $i * $i ) > $o)).
% 0.19/0.41  tff(1,plain,
% 0.19/0.41      (^[B: $i, A: $i, E: $i] : refl((member(B, difference(E, A)) <=> (~((~member(B, E)) | member(B, A)))) <=> (member(B, difference(E, A)) <=> (~((~member(B, E)) | member(B, A)))))),
% 0.19/0.41      inference(bind,[status(th)],[])).
% 0.19/0.41  tff(2,plain,
% 0.19/0.41      (![B: $i, A: $i, E: $i] : (member(B, difference(E, A)) <=> (~((~member(B, E)) | member(B, A)))) <=> ![B: $i, A: $i, E: $i] : (member(B, difference(E, A)) <=> (~((~member(B, E)) | member(B, A))))),
% 0.19/0.41      inference(quant_intro,[status(thm)],[1])).
% 0.19/0.41  tff(3,plain,
% 0.19/0.41      (^[B: $i, A: $i, E: $i] : rewrite((member(B, difference(E, A)) <=> (member(B, E) & (~member(B, A)))) <=> (member(B, difference(E, A)) <=> (~((~member(B, E)) | member(B, A)))))),
% 0.19/0.41      inference(bind,[status(th)],[])).
% 0.19/0.41  tff(4,plain,
% 0.19/0.41      (![B: $i, A: $i, E: $i] : (member(B, difference(E, A)) <=> (member(B, E) & (~member(B, A)))) <=> ![B: $i, A: $i, E: $i] : (member(B, difference(E, A)) <=> (~((~member(B, E)) | member(B, A))))),
% 0.19/0.41      inference(quant_intro,[status(thm)],[3])).
% 0.19/0.41  tff(5,plain,
% 0.19/0.41      (![B: $i, A: $i, E: $i] : (member(B, difference(E, A)) <=> (member(B, E) & (~member(B, A)))) <=> ![B: $i, A: $i, E: $i] : (member(B, difference(E, A)) <=> (member(B, E) & (~member(B, A))))),
% 0.19/0.41      inference(rewrite,[status(thm)],[])).
% 0.19/0.41  tff(6,axiom,(![B: $i, A: $i, E: $i] : (member(B, difference(E, A)) <=> (member(B, E) & (~member(B, A))))), file('/export/starexec/sandbox2/benchmark/Axioms/SET006+0.ax','difference')).
% 0.19/0.41  tff(7,plain,
% 0.19/0.41      (![B: $i, A: $i, E: $i] : (member(B, difference(E, A)) <=> (member(B, E) & (~member(B, A))))),
% 0.19/0.41      inference(modus_ponens,[status(thm)],[6, 5])).
% 0.19/0.41  tff(8,plain,(
% 0.19/0.41      ![B: $i, A: $i, E: $i] : (member(B, difference(E, A)) <=> (member(B, E) & (~member(B, A))))),
% 0.19/0.41      inference(skolemize,[status(sab)],[7])).
% 0.19/0.41  tff(9,plain,
% 0.19/0.41      (![B: $i, A: $i, E: $i] : (member(B, difference(E, A)) <=> (~((~member(B, E)) | member(B, A))))),
% 0.19/0.41      inference(modus_ponens,[status(thm)],[8, 4])).
% 0.19/0.41  tff(10,plain,
% 0.19/0.41      (![B: $i, A: $i, E: $i] : (member(B, difference(E, A)) <=> (~((~member(B, E)) | member(B, A))))),
% 0.19/0.41      inference(modus_ponens,[status(thm)],[9, 2])).
% 0.19/0.41  tff(11,plain,
% 0.19/0.41      ((~![B: $i, A: $i, E: $i] : (member(B, difference(E, A)) <=> (~((~member(B, E)) | member(B, A))))) | (member(tptp_fun_X_0(difference(E!3, empty_set), E!3), difference(E!3, empty_set)) <=> (~((~member(tptp_fun_X_0(difference(E!3, empty_set), E!3), E!3)) | member(tptp_fun_X_0(difference(E!3, empty_set), E!3), empty_set))))),
% 0.19/0.41      inference(quant_inst,[status(thm)],[])).
% 0.19/0.41  tff(12,plain,
% 0.19/0.41      (member(tptp_fun_X_0(difference(E!3, empty_set), E!3), difference(E!3, empty_set)) <=> (~((~member(tptp_fun_X_0(difference(E!3, empty_set), E!3), E!3)) | member(tptp_fun_X_0(difference(E!3, empty_set), E!3), empty_set)))),
% 0.19/0.41      inference(unit_resolution,[status(thm)],[11, 10])).
% 0.19/0.41  tff(13,plain,
% 0.19/0.41      (^[A: $i, B: $i] : refl((~((~((~subset(A, B)) | ![X: $i] : ((~member(X, A)) | member(X, B)))) | (~(subset(A, B) | (~((~member(tptp_fun_X_0(B, A), A)) | member(tptp_fun_X_0(B, A), B))))))) <=> (~((~((~subset(A, B)) | ![X: $i] : ((~member(X, A)) | member(X, B)))) | (~(subset(A, B) | (~((~member(tptp_fun_X_0(B, A), A)) | member(tptp_fun_X_0(B, A), B))))))))),
% 0.19/0.41      inference(bind,[status(th)],[])).
% 0.19/0.41  tff(14,plain,
% 0.19/0.41      (![A: $i, B: $i] : (~((~((~subset(A, B)) | ![X: $i] : ((~member(X, A)) | member(X, B)))) | (~(subset(A, B) | (~((~member(tptp_fun_X_0(B, A), A)) | member(tptp_fun_X_0(B, A), B))))))) <=> ![A: $i, B: $i] : (~((~((~subset(A, B)) | ![X: $i] : ((~member(X, A)) | member(X, B)))) | (~(subset(A, B) | (~((~member(tptp_fun_X_0(B, A), A)) | member(tptp_fun_X_0(B, A), B)))))))),
% 0.19/0.41      inference(quant_intro,[status(thm)],[13])).
% 0.19/0.41  tff(15,plain,
% 0.19/0.41      (^[A: $i, B: $i] : rewrite((~((~((~subset(A, B)) | ![X: $i] : ((~member(X, A)) | member(X, B)))) | (~(subset(A, B) | (~((~member(tptp_fun_X_0(B, A), A)) | member(tptp_fun_X_0(B, A), B))))))) <=> (~((~((~subset(A, B)) | ![X: $i] : ((~member(X, A)) | member(X, B)))) | (~(subset(A, B) | (~((~member(tptp_fun_X_0(B, A), A)) | member(tptp_fun_X_0(B, A), B))))))))),
% 0.19/0.42      inference(bind,[status(th)],[])).
% 0.19/0.42  tff(16,plain,
% 0.19/0.42      (![A: $i, B: $i] : (~((~((~subset(A, B)) | ![X: $i] : ((~member(X, A)) | member(X, B)))) | (~(subset(A, B) | (~((~member(tptp_fun_X_0(B, A), A)) | member(tptp_fun_X_0(B, A), B))))))) <=> ![A: $i, B: $i] : (~((~((~subset(A, B)) | ![X: $i] : ((~member(X, A)) | member(X, B)))) | (~(subset(A, B) | (~((~member(tptp_fun_X_0(B, A), A)) | member(tptp_fun_X_0(B, A), B)))))))),
% 0.19/0.42      inference(quant_intro,[status(thm)],[15])).
% 0.19/0.42  tff(17,plain,
% 0.19/0.42      (![A: $i, B: $i] : (~((~((~subset(A, B)) | ![X: $i] : ((~member(X, A)) | member(X, B)))) | (~(subset(A, B) | (~((~member(tptp_fun_X_0(B, A), A)) | member(tptp_fun_X_0(B, A), B))))))) <=> ![A: $i, B: $i] : (~((~((~subset(A, B)) | ![X: $i] : ((~member(X, A)) | member(X, B)))) | (~(subset(A, B) | (~((~member(tptp_fun_X_0(B, A), A)) | member(tptp_fun_X_0(B, A), B)))))))),
% 0.19/0.42      inference(transitivity,[status(thm)],[16, 14])).
% 0.19/0.42  tff(18,plain,
% 0.19/0.42      (^[A: $i, B: $i] : trans(monotonicity(rewrite(((~subset(A, B)) | ![X: $i] : ((~member(X, A)) | member(X, B))) <=> ((~subset(A, B)) | ![X: $i] : ((~member(X, A)) | member(X, B)))), rewrite((subset(A, B) | (~((~member(tptp_fun_X_0(B, A), A)) | member(tptp_fun_X_0(B, A), B)))) <=> (subset(A, B) | (~((~member(tptp_fun_X_0(B, A), A)) | member(tptp_fun_X_0(B, A), B))))), ((((~subset(A, B)) | ![X: $i] : ((~member(X, A)) | member(X, B))) & (subset(A, B) | (~((~member(tptp_fun_X_0(B, A), A)) | member(tptp_fun_X_0(B, A), B))))) <=> (((~subset(A, B)) | ![X: $i] : ((~member(X, A)) | member(X, B))) & (subset(A, B) | (~((~member(tptp_fun_X_0(B, A), A)) | member(tptp_fun_X_0(B, A), B))))))), rewrite((((~subset(A, B)) | ![X: $i] : ((~member(X, A)) | member(X, B))) & (subset(A, B) | (~((~member(tptp_fun_X_0(B, A), A)) | member(tptp_fun_X_0(B, A), B))))) <=> (~((~((~subset(A, B)) | ![X: $i] : ((~member(X, A)) | member(X, B)))) | (~(subset(A, B) | (~((~member(tptp_fun_X_0(B, A), A)) | member(tptp_fun_X_0(B, A), B)))))))), ((((~subset(A, B)) | ![X: $i] : ((~member(X, A)) | member(X, B))) & (subset(A, B) | (~((~member(tptp_fun_X_0(B, A), A)) | member(tptp_fun_X_0(B, A), B))))) <=> (~((~((~subset(A, B)) | ![X: $i] : ((~member(X, A)) | member(X, B)))) | (~(subset(A, B) | (~((~member(tptp_fun_X_0(B, A), A)) | member(tptp_fun_X_0(B, A), B)))))))))),
% 0.19/0.42      inference(bind,[status(th)],[])).
% 0.19/0.42  tff(19,plain,
% 0.19/0.42      (![A: $i, B: $i] : (((~subset(A, B)) | ![X: $i] : ((~member(X, A)) | member(X, B))) & (subset(A, B) | (~((~member(tptp_fun_X_0(B, A), A)) | member(tptp_fun_X_0(B, A), B))))) <=> ![A: $i, B: $i] : (~((~((~subset(A, B)) | ![X: $i] : ((~member(X, A)) | member(X, B)))) | (~(subset(A, B) | (~((~member(tptp_fun_X_0(B, A), A)) | member(tptp_fun_X_0(B, A), B)))))))),
% 0.19/0.42      inference(quant_intro,[status(thm)],[18])).
% 0.19/0.42  tff(20,plain,
% 0.19/0.42      (![A: $i, B: $i] : (subset(A, B) <=> ![X: $i] : ((~member(X, A)) | member(X, B))) <=> ![A: $i, B: $i] : (subset(A, B) <=> ![X: $i] : ((~member(X, A)) | member(X, B)))),
% 0.19/0.42      inference(rewrite,[status(thm)],[])).
% 0.19/0.42  tff(21,plain,
% 0.19/0.42      (^[A: $i, B: $i] : rewrite((subset(A, B) <=> ![X: $i] : (member(X, A) => member(X, B))) <=> (subset(A, B) <=> ![X: $i] : ((~member(X, A)) | member(X, B))))),
% 0.19/0.42      inference(bind,[status(th)],[])).
% 0.19/0.42  tff(22,plain,
% 0.19/0.42      (![A: $i, B: $i] : (subset(A, B) <=> ![X: $i] : (member(X, A) => member(X, B))) <=> ![A: $i, B: $i] : (subset(A, B) <=> ![X: $i] : ((~member(X, A)) | member(X, B)))),
% 0.19/0.42      inference(quant_intro,[status(thm)],[21])).
% 0.19/0.42  tff(23,axiom,(![A: $i, B: $i] : (subset(A, B) <=> ![X: $i] : (member(X, A) => member(X, B)))), file('/export/starexec/sandbox2/benchmark/Axioms/SET006+0.ax','subset')).
% 0.19/0.42  tff(24,plain,
% 0.19/0.42      (![A: $i, B: $i] : (subset(A, B) <=> ![X: $i] : ((~member(X, A)) | member(X, B)))),
% 0.19/0.42      inference(modus_ponens,[status(thm)],[23, 22])).
% 0.19/0.42  tff(25,plain,
% 0.19/0.42      (![A: $i, B: $i] : (subset(A, B) <=> ![X: $i] : ((~member(X, A)) | member(X, B)))),
% 0.19/0.42      inference(modus_ponens,[status(thm)],[24, 20])).
% 0.19/0.42  tff(26,plain,(
% 0.19/0.42      ![A: $i, B: $i] : (((~subset(A, B)) | ![X: $i] : ((~member(X, A)) | member(X, B))) & (subset(A, B) | (~((~member(tptp_fun_X_0(B, A), A)) | member(tptp_fun_X_0(B, A), B)))))),
% 0.19/0.42      inference(skolemize,[status(sab)],[25])).
% 0.19/0.42  tff(27,plain,
% 0.19/0.42      (![A: $i, B: $i] : (~((~((~subset(A, B)) | ![X: $i] : ((~member(X, A)) | member(X, B)))) | (~(subset(A, B) | (~((~member(tptp_fun_X_0(B, A), A)) | member(tptp_fun_X_0(B, A), B)))))))),
% 0.19/0.42      inference(modus_ponens,[status(thm)],[26, 19])).
% 0.19/0.42  tff(28,plain,
% 0.19/0.42      (![A: $i, B: $i] : (~((~((~subset(A, B)) | ![X: $i] : ((~member(X, A)) | member(X, B)))) | (~(subset(A, B) | (~((~member(tptp_fun_X_0(B, A), A)) | member(tptp_fun_X_0(B, A), B)))))))),
% 0.19/0.42      inference(modus_ponens,[status(thm)],[27, 17])).
% 0.19/0.42  tff(29,plain,
% 0.19/0.42      ((~![A: $i, B: $i] : (~((~((~subset(A, B)) | ![X: $i] : ((~member(X, A)) | member(X, B)))) | (~(subset(A, B) | (~((~member(tptp_fun_X_0(B, A), A)) | member(tptp_fun_X_0(B, A), B)))))))) | (~((~((~subset(E!3, difference(E!3, empty_set))) | ![X: $i] : ((~member(X, E!3)) | member(X, difference(E!3, empty_set))))) | (~(subset(E!3, difference(E!3, empty_set)) | (~((~member(tptp_fun_X_0(difference(E!3, empty_set), E!3), E!3)) | member(tptp_fun_X_0(difference(E!3, empty_set), E!3), difference(E!3, empty_set))))))))),
% 0.19/0.42      inference(quant_inst,[status(thm)],[])).
% 0.19/0.42  tff(30,plain,
% 0.19/0.42      (~((~((~subset(E!3, difference(E!3, empty_set))) | ![X: $i] : ((~member(X, E!3)) | member(X, difference(E!3, empty_set))))) | (~(subset(E!3, difference(E!3, empty_set)) | (~((~member(tptp_fun_X_0(difference(E!3, empty_set), E!3), E!3)) | member(tptp_fun_X_0(difference(E!3, empty_set), E!3), difference(E!3, empty_set)))))))),
% 0.19/0.42      inference(unit_resolution,[status(thm)],[29, 28])).
% 0.19/0.42  tff(31,plain,
% 0.19/0.42      (((~((~subset(E!3, difference(E!3, empty_set))) | ![X: $i] : ((~member(X, E!3)) | member(X, difference(E!3, empty_set))))) | (~(subset(E!3, difference(E!3, empty_set)) | (~((~member(tptp_fun_X_0(difference(E!3, empty_set), E!3), E!3)) | member(tptp_fun_X_0(difference(E!3, empty_set), E!3), difference(E!3, empty_set))))))) | (subset(E!3, difference(E!3, empty_set)) | (~((~member(tptp_fun_X_0(difference(E!3, empty_set), E!3), E!3)) | member(tptp_fun_X_0(difference(E!3, empty_set), E!3), difference(E!3, empty_set)))))),
% 0.19/0.42      inference(tautology,[status(thm)],[])).
% 0.19/0.42  tff(32,plain,
% 0.19/0.42      (subset(E!3, difference(E!3, empty_set)) | (~((~member(tptp_fun_X_0(difference(E!3, empty_set), E!3), E!3)) | member(tptp_fun_X_0(difference(E!3, empty_set), E!3), difference(E!3, empty_set))))),
% 0.19/0.42      inference(unit_resolution,[status(thm)],[31, 30])).
% 0.19/0.42  tff(33,assumption,((~((~subset(difference(E!3, empty_set), E!3)) | ![X: $i] : ((~member(X, difference(E!3, empty_set))) | member(X, E!3)))) | (~(subset(difference(E!3, empty_set), E!3) | (~((~member(tptp_fun_X_0(E!3, difference(E!3, empty_set)), difference(E!3, empty_set))) | member(tptp_fun_X_0(E!3, difference(E!3, empty_set)), E!3)))))), introduced(assumption)).
% 0.19/0.42  tff(34,plain,
% 0.19/0.42      ((~![A: $i, B: $i] : (~((~((~subset(A, B)) | ![X: $i] : ((~member(X, A)) | member(X, B)))) | (~(subset(A, B) | (~((~member(tptp_fun_X_0(B, A), A)) | member(tptp_fun_X_0(B, A), B)))))))) | (~((~((~subset(difference(E!3, empty_set), E!3)) | ![X: $i] : ((~member(X, difference(E!3, empty_set))) | member(X, E!3)))) | (~(subset(difference(E!3, empty_set), E!3) | (~((~member(tptp_fun_X_0(E!3, difference(E!3, empty_set)), difference(E!3, empty_set))) | member(tptp_fun_X_0(E!3, difference(E!3, empty_set)), E!3)))))))),
% 0.19/0.42      inference(quant_inst,[status(thm)],[])).
% 0.19/0.42  tff(35,plain,
% 0.19/0.42      ($false),
% 0.19/0.42      inference(unit_resolution,[status(thm)],[34, 28, 33])).
% 0.19/0.42  tff(36,plain,(~((~((~subset(difference(E!3, empty_set), E!3)) | ![X: $i] : ((~member(X, difference(E!3, empty_set))) | member(X, E!3)))) | (~(subset(difference(E!3, empty_set), E!3) | (~((~member(tptp_fun_X_0(E!3, difference(E!3, empty_set)), difference(E!3, empty_set))) | member(tptp_fun_X_0(E!3, difference(E!3, empty_set)), E!3))))))), inference(lemma,lemma(discharge,[]))).
% 0.19/0.42  tff(37,plain,
% 0.19/0.42      (((~((~subset(difference(E!3, empty_set), E!3)) | ![X: $i] : ((~member(X, difference(E!3, empty_set))) | member(X, E!3)))) | (~(subset(difference(E!3, empty_set), E!3) | (~((~member(tptp_fun_X_0(E!3, difference(E!3, empty_set)), difference(E!3, empty_set))) | member(tptp_fun_X_0(E!3, difference(E!3, empty_set)), E!3)))))) | (subset(difference(E!3, empty_set), E!3) | (~((~member(tptp_fun_X_0(E!3, difference(E!3, empty_set)), difference(E!3, empty_set))) | member(tptp_fun_X_0(E!3, difference(E!3, empty_set)), E!3))))),
% 0.19/0.42      inference(tautology,[status(thm)],[])).
% 0.19/0.42  tff(38,plain,
% 0.19/0.42      (subset(difference(E!3, empty_set), E!3) | (~((~member(tptp_fun_X_0(E!3, difference(E!3, empty_set)), difference(E!3, empty_set))) | member(tptp_fun_X_0(E!3, difference(E!3, empty_set)), E!3)))),
% 0.19/0.42      inference(unit_resolution,[status(thm)],[37, 36])).
% 0.19/0.42  tff(39,assumption,(~((~member(tptp_fun_X_0(E!3, difference(E!3, empty_set)), difference(E!3, empty_set))) | member(tptp_fun_X_0(E!3, difference(E!3, empty_set)), E!3))), introduced(assumption)).
% 0.19/0.42  tff(40,plain,
% 0.19/0.42      (((~member(tptp_fun_X_0(E!3, difference(E!3, empty_set)), difference(E!3, empty_set))) | member(tptp_fun_X_0(E!3, difference(E!3, empty_set)), E!3)) | (~member(tptp_fun_X_0(E!3, difference(E!3, empty_set)), E!3))),
% 0.19/0.42      inference(tautology,[status(thm)],[])).
% 0.19/0.42  tff(41,plain,
% 0.19/0.42      (~member(tptp_fun_X_0(E!3, difference(E!3, empty_set)), E!3)),
% 0.19/0.42      inference(unit_resolution,[status(thm)],[40, 39])).
% 0.19/0.42  tff(42,plain,
% 0.19/0.42      (((~member(tptp_fun_X_0(E!3, difference(E!3, empty_set)), difference(E!3, empty_set))) | member(tptp_fun_X_0(E!3, difference(E!3, empty_set)), E!3)) | member(tptp_fun_X_0(E!3, difference(E!3, empty_set)), difference(E!3, empty_set))),
% 0.19/0.42      inference(tautology,[status(thm)],[])).
% 0.19/0.42  tff(43,plain,
% 0.19/0.42      (member(tptp_fun_X_0(E!3, difference(E!3, empty_set)), difference(E!3, empty_set))),
% 0.19/0.42      inference(unit_resolution,[status(thm)],[42, 39])).
% 0.19/0.42  tff(44,assumption,(~(member(tptp_fun_X_0(E!3, difference(E!3, empty_set)), difference(E!3, empty_set)) <=> (~((~member(tptp_fun_X_0(E!3, difference(E!3, empty_set)), E!3)) | member(tptp_fun_X_0(E!3, difference(E!3, empty_set)), empty_set))))), introduced(assumption)).
% 0.19/0.42  tff(45,plain,
% 0.19/0.42      ((~![B: $i, A: $i, E: $i] : (member(B, difference(E, A)) <=> (~((~member(B, E)) | member(B, A))))) | (member(tptp_fun_X_0(E!3, difference(E!3, empty_set)), difference(E!3, empty_set)) <=> (~((~member(tptp_fun_X_0(E!3, difference(E!3, empty_set)), E!3)) | member(tptp_fun_X_0(E!3, difference(E!3, empty_set)), empty_set))))),
% 0.19/0.42      inference(quant_inst,[status(thm)],[])).
% 0.19/0.42  tff(46,plain,
% 0.19/0.42      ($false),
% 0.19/0.42      inference(unit_resolution,[status(thm)],[45, 10, 44])).
% 0.19/0.42  tff(47,plain,(member(tptp_fun_X_0(E!3, difference(E!3, empty_set)), difference(E!3, empty_set)) <=> (~((~member(tptp_fun_X_0(E!3, difference(E!3, empty_set)), E!3)) | member(tptp_fun_X_0(E!3, difference(E!3, empty_set)), empty_set)))), inference(lemma,lemma(discharge,[]))).
% 0.19/0.42  tff(48,plain,
% 0.19/0.42      ((~(member(tptp_fun_X_0(E!3, difference(E!3, empty_set)), difference(E!3, empty_set)) <=> (~((~member(tptp_fun_X_0(E!3, difference(E!3, empty_set)), E!3)) | member(tptp_fun_X_0(E!3, difference(E!3, empty_set)), empty_set))))) | (~member(tptp_fun_X_0(E!3, difference(E!3, empty_set)), difference(E!3, empty_set))) | (~((~member(tptp_fun_X_0(E!3, difference(E!3, empty_set)), E!3)) | member(tptp_fun_X_0(E!3, difference(E!3, empty_set)), empty_set)))),
% 0.19/0.42      inference(tautology,[status(thm)],[])).
% 0.19/0.42  tff(49,plain,
% 0.19/0.42      ((~member(tptp_fun_X_0(E!3, difference(E!3, empty_set)), difference(E!3, empty_set))) | (~((~member(tptp_fun_X_0(E!3, difference(E!3, empty_set)), E!3)) | member(tptp_fun_X_0(E!3, difference(E!3, empty_set)), empty_set)))),
% 0.19/0.42      inference(unit_resolution,[status(thm)],[48, 47])).
% 0.19/0.42  tff(50,plain,
% 0.19/0.42      (~((~member(tptp_fun_X_0(E!3, difference(E!3, empty_set)), E!3)) | member(tptp_fun_X_0(E!3, difference(E!3, empty_set)), empty_set))),
% 0.19/0.42      inference(unit_resolution,[status(thm)],[49, 43])).
% 0.19/0.42  tff(51,plain,
% 0.19/0.42      (((~member(tptp_fun_X_0(E!3, difference(E!3, empty_set)), E!3)) | member(tptp_fun_X_0(E!3, difference(E!3, empty_set)), empty_set)) | member(tptp_fun_X_0(E!3, difference(E!3, empty_set)), E!3)),
% 0.19/0.43      inference(tautology,[status(thm)],[])).
% 0.19/0.43  tff(52,plain,
% 0.19/0.43      ($false),
% 0.19/0.43      inference(unit_resolution,[status(thm)],[51, 50, 41])).
% 0.19/0.43  tff(53,plain,((~member(tptp_fun_X_0(E!3, difference(E!3, empty_set)), difference(E!3, empty_set))) | member(tptp_fun_X_0(E!3, difference(E!3, empty_set)), E!3)), inference(lemma,lemma(discharge,[]))).
% 0.19/0.43  tff(54,plain,
% 0.19/0.43      ((~(subset(difference(E!3, empty_set), E!3) | (~((~member(tptp_fun_X_0(E!3, difference(E!3, empty_set)), difference(E!3, empty_set))) | member(tptp_fun_X_0(E!3, difference(E!3, empty_set)), E!3))))) | subset(difference(E!3, empty_set), E!3) | (~((~member(tptp_fun_X_0(E!3, difference(E!3, empty_set)), difference(E!3, empty_set))) | member(tptp_fun_X_0(E!3, difference(E!3, empty_set)), E!3)))),
% 0.19/0.43      inference(tautology,[status(thm)],[])).
% 0.19/0.43  tff(55,plain,
% 0.19/0.43      ((~(subset(difference(E!3, empty_set), E!3) | (~((~member(tptp_fun_X_0(E!3, difference(E!3, empty_set)), difference(E!3, empty_set))) | member(tptp_fun_X_0(E!3, difference(E!3, empty_set)), E!3))))) | subset(difference(E!3, empty_set), E!3)),
% 0.19/0.43      inference(unit_resolution,[status(thm)],[54, 53])).
% 0.19/0.43  tff(56,plain,
% 0.19/0.43      (subset(difference(E!3, empty_set), E!3)),
% 0.19/0.43      inference(unit_resolution,[status(thm)],[55, 38])).
% 0.19/0.43  tff(57,plain,
% 0.19/0.43      (^[A: $i, B: $i] : refl((equal_set(A, B) <=> (~((~subset(A, B)) | (~subset(B, A))))) <=> (equal_set(A, B) <=> (~((~subset(A, B)) | (~subset(B, A))))))),
% 0.19/0.43      inference(bind,[status(th)],[])).
% 0.19/0.43  tff(58,plain,
% 0.19/0.43      (![A: $i, B: $i] : (equal_set(A, B) <=> (~((~subset(A, B)) | (~subset(B, A))))) <=> ![A: $i, B: $i] : (equal_set(A, B) <=> (~((~subset(A, B)) | (~subset(B, A)))))),
% 0.19/0.43      inference(quant_intro,[status(thm)],[57])).
% 0.19/0.43  tff(59,plain,
% 0.19/0.43      (^[A: $i, B: $i] : rewrite((equal_set(A, B) <=> (subset(A, B) & subset(B, A))) <=> (equal_set(A, B) <=> (~((~subset(A, B)) | (~subset(B, A))))))),
% 0.19/0.43      inference(bind,[status(th)],[])).
% 0.19/0.43  tff(60,plain,
% 0.19/0.43      (![A: $i, B: $i] : (equal_set(A, B) <=> (subset(A, B) & subset(B, A))) <=> ![A: $i, B: $i] : (equal_set(A, B) <=> (~((~subset(A, B)) | (~subset(B, A)))))),
% 0.19/0.43      inference(quant_intro,[status(thm)],[59])).
% 0.19/0.43  tff(61,plain,
% 0.19/0.43      (![A: $i, B: $i] : (equal_set(A, B) <=> (subset(A, B) & subset(B, A))) <=> ![A: $i, B: $i] : (equal_set(A, B) <=> (subset(A, B) & subset(B, A)))),
% 0.19/0.43      inference(rewrite,[status(thm)],[])).
% 0.19/0.43  tff(62,axiom,(![A: $i, B: $i] : (equal_set(A, B) <=> (subset(A, B) & subset(B, A)))), file('/export/starexec/sandbox2/benchmark/Axioms/SET006+0.ax','equal_set')).
% 0.19/0.43  tff(63,plain,
% 0.19/0.43      (![A: $i, B: $i] : (equal_set(A, B) <=> (subset(A, B) & subset(B, A)))),
% 0.19/0.43      inference(modus_ponens,[status(thm)],[62, 61])).
% 0.19/0.43  tff(64,plain,(
% 0.19/0.43      ![A: $i, B: $i] : (equal_set(A, B) <=> (subset(A, B) & subset(B, A)))),
% 0.19/0.43      inference(skolemize,[status(sab)],[63])).
% 0.19/0.43  tff(65,plain,
% 0.19/0.43      (![A: $i, B: $i] : (equal_set(A, B) <=> (~((~subset(A, B)) | (~subset(B, A)))))),
% 0.19/0.43      inference(modus_ponens,[status(thm)],[64, 60])).
% 0.19/0.43  tff(66,plain,
% 0.19/0.43      (![A: $i, B: $i] : (equal_set(A, B) <=> (~((~subset(A, B)) | (~subset(B, A)))))),
% 0.19/0.43      inference(modus_ponens,[status(thm)],[65, 58])).
% 0.19/0.43  tff(67,plain,
% 0.19/0.43      ((~![A: $i, B: $i] : (equal_set(A, B) <=> (~((~subset(A, B)) | (~subset(B, A)))))) | (equal_set(difference(E!3, empty_set), E!3) <=> (~((~subset(difference(E!3, empty_set), E!3)) | (~subset(E!3, difference(E!3, empty_set))))))),
% 0.19/0.43      inference(quant_inst,[status(thm)],[])).
% 0.19/0.43  tff(68,plain,
% 0.19/0.43      (equal_set(difference(E!3, empty_set), E!3) <=> (~((~subset(difference(E!3, empty_set), E!3)) | (~subset(E!3, difference(E!3, empty_set)))))),
% 0.19/0.43      inference(unit_resolution,[status(thm)],[67, 66])).
% 0.19/0.43  tff(69,plain,
% 0.19/0.43      ((~![E: $i] : equal_set(difference(E, empty_set), E)) <=> (~![E: $i] : equal_set(difference(E, empty_set), E))),
% 0.19/0.43      inference(rewrite,[status(thm)],[])).
% 0.19/0.43  tff(70,axiom,(~![E: $i] : equal_set(difference(E, empty_set), E)), file('/export/starexec/sandbox2/benchmark/theBenchmark.p','thI30')).
% 0.19/0.43  tff(71,plain,
% 0.19/0.43      (~![E: $i] : equal_set(difference(E, empty_set), E)),
% 0.19/0.43      inference(modus_ponens,[status(thm)],[70, 69])).
% 0.19/0.43  tff(72,plain,
% 0.19/0.43      (~![E: $i] : equal_set(difference(E, empty_set), E)),
% 0.19/0.43      inference(modus_ponens,[status(thm)],[71, 69])).
% 0.19/0.43  tff(73,plain,
% 0.19/0.43      (~![E: $i] : equal_set(difference(E, empty_set), E)),
% 0.19/0.43      inference(modus_ponens,[status(thm)],[72, 69])).
% 0.19/0.43  tff(74,plain,
% 0.19/0.43      (~![E: $i] : equal_set(difference(E, empty_set), E)),
% 0.19/0.43      inference(modus_ponens,[status(thm)],[73, 69])).
% 0.19/0.43  tff(75,plain,
% 0.19/0.43      (~![E: $i] : equal_set(difference(E, empty_set), E)),
% 0.19/0.43      inference(modus_ponens,[status(thm)],[74, 69])).
% 0.19/0.43  tff(76,plain,
% 0.19/0.43      (~![E: $i] : equal_set(difference(E, empty_set), E)),
% 0.19/0.43      inference(modus_ponens,[status(thm)],[75, 69])).
% 0.19/0.43  tff(77,plain,
% 0.19/0.43      (~![E: $i] : equal_set(difference(E, empty_set), E)),
% 0.19/0.43      inference(modus_ponens,[status(thm)],[76, 69])).
% 0.19/0.43  tff(78,plain,(
% 0.19/0.43      ~equal_set(difference(E!3, empty_set), E!3)),
% 0.19/0.43      inference(skolemize,[status(sab)],[77])).
% 0.19/0.43  tff(79,plain,
% 0.19/0.43      ((~(equal_set(difference(E!3, empty_set), E!3) <=> (~((~subset(difference(E!3, empty_set), E!3)) | (~subset(E!3, difference(E!3, empty_set))))))) | equal_set(difference(E!3, empty_set), E!3) | ((~subset(difference(E!3, empty_set), E!3)) | (~subset(E!3, difference(E!3, empty_set))))),
% 0.19/0.43      inference(tautology,[status(thm)],[])).
% 0.19/0.43  tff(80,plain,
% 0.19/0.43      ((~(equal_set(difference(E!3, empty_set), E!3) <=> (~((~subset(difference(E!3, empty_set), E!3)) | (~subset(E!3, difference(E!3, empty_set))))))) | ((~subset(difference(E!3, empty_set), E!3)) | (~subset(E!3, difference(E!3, empty_set))))),
% 0.19/0.43      inference(unit_resolution,[status(thm)],[79, 78])).
% 0.19/0.43  tff(81,plain,
% 0.19/0.43      ((~subset(difference(E!3, empty_set), E!3)) | (~subset(E!3, difference(E!3, empty_set)))),
% 0.19/0.43      inference(unit_resolution,[status(thm)],[80, 68])).
% 0.19/0.43  tff(82,plain,
% 0.19/0.43      ((~((~subset(difference(E!3, empty_set), E!3)) | (~subset(E!3, difference(E!3, empty_set))))) | (~subset(difference(E!3, empty_set), E!3)) | (~subset(E!3, difference(E!3, empty_set)))),
% 0.19/0.43      inference(tautology,[status(thm)],[])).
% 0.19/0.43  tff(83,plain,
% 0.19/0.43      ((~subset(difference(E!3, empty_set), E!3)) | (~subset(E!3, difference(E!3, empty_set)))),
% 0.19/0.43      inference(unit_resolution,[status(thm)],[82, 81])).
% 0.19/0.43  tff(84,plain,
% 0.19/0.43      (~subset(E!3, difference(E!3, empty_set))),
% 0.19/0.43      inference(unit_resolution,[status(thm)],[83, 56])).
% 0.19/0.43  tff(85,plain,
% 0.19/0.43      ((~(subset(E!3, difference(E!3, empty_set)) | (~((~member(tptp_fun_X_0(difference(E!3, empty_set), E!3), E!3)) | member(tptp_fun_X_0(difference(E!3, empty_set), E!3), difference(E!3, empty_set)))))) | subset(E!3, difference(E!3, empty_set)) | (~((~member(tptp_fun_X_0(difference(E!3, empty_set), E!3), E!3)) | member(tptp_fun_X_0(difference(E!3, empty_set), E!3), difference(E!3, empty_set))))),
% 0.19/0.43      inference(tautology,[status(thm)],[])).
% 0.19/0.43  tff(86,plain,
% 0.19/0.43      ((~(subset(E!3, difference(E!3, empty_set)) | (~((~member(tptp_fun_X_0(difference(E!3, empty_set), E!3), E!3)) | member(tptp_fun_X_0(difference(E!3, empty_set), E!3), difference(E!3, empty_set)))))) | (~((~member(tptp_fun_X_0(difference(E!3, empty_set), E!3), E!3)) | member(tptp_fun_X_0(difference(E!3, empty_set), E!3), difference(E!3, empty_set))))),
% 0.19/0.43      inference(unit_resolution,[status(thm)],[85, 84])).
% 0.19/0.43  tff(87,plain,
% 0.19/0.43      (~((~member(tptp_fun_X_0(difference(E!3, empty_set), E!3), E!3)) | member(tptp_fun_X_0(difference(E!3, empty_set), E!3), difference(E!3, empty_set)))),
% 0.19/0.43      inference(unit_resolution,[status(thm)],[86, 32])).
% 0.19/0.43  tff(88,plain,
% 0.19/0.43      (((~member(tptp_fun_X_0(difference(E!3, empty_set), E!3), E!3)) | member(tptp_fun_X_0(difference(E!3, empty_set), E!3), difference(E!3, empty_set))) | (~member(tptp_fun_X_0(difference(E!3, empty_set), E!3), difference(E!3, empty_set)))),
% 0.19/0.43      inference(tautology,[status(thm)],[])).
% 0.19/0.43  tff(89,plain,
% 0.19/0.43      (~member(tptp_fun_X_0(difference(E!3, empty_set), E!3), difference(E!3, empty_set))),
% 0.19/0.43      inference(unit_resolution,[status(thm)],[88, 87])).
% 0.19/0.43  tff(90,plain,
% 0.19/0.43      ((~(member(tptp_fun_X_0(difference(E!3, empty_set), E!3), difference(E!3, empty_set)) <=> (~((~member(tptp_fun_X_0(difference(E!3, empty_set), E!3), E!3)) | member(tptp_fun_X_0(difference(E!3, empty_set), E!3), empty_set))))) | member(tptp_fun_X_0(difference(E!3, empty_set), E!3), difference(E!3, empty_set)) | ((~member(tptp_fun_X_0(difference(E!3, empty_set), E!3), E!3)) | member(tptp_fun_X_0(difference(E!3, empty_set), E!3), empty_set))),
% 0.19/0.44      inference(tautology,[status(thm)],[])).
% 0.19/0.44  tff(91,plain,
% 0.19/0.44      ((~(member(tptp_fun_X_0(difference(E!3, empty_set), E!3), difference(E!3, empty_set)) <=> (~((~member(tptp_fun_X_0(difference(E!3, empty_set), E!3), E!3)) | member(tptp_fun_X_0(difference(E!3, empty_set), E!3), empty_set))))) | ((~member(tptp_fun_X_0(difference(E!3, empty_set), E!3), E!3)) | member(tptp_fun_X_0(difference(E!3, empty_set), E!3), empty_set))),
% 0.19/0.44      inference(unit_resolution,[status(thm)],[90, 89])).
% 0.19/0.44  tff(92,plain,
% 0.19/0.44      ((~member(tptp_fun_X_0(difference(E!3, empty_set), E!3), E!3)) | member(tptp_fun_X_0(difference(E!3, empty_set), E!3), empty_set)),
% 0.19/0.44      inference(unit_resolution,[status(thm)],[91, 12])).
% 0.19/0.44  tff(93,plain,
% 0.19/0.44      (((~member(tptp_fun_X_0(difference(E!3, empty_set), E!3), E!3)) | member(tptp_fun_X_0(difference(E!3, empty_set), E!3), difference(E!3, empty_set))) | member(tptp_fun_X_0(difference(E!3, empty_set), E!3), E!3)),
% 0.19/0.44      inference(tautology,[status(thm)],[])).
% 0.19/0.44  tff(94,plain,
% 0.19/0.44      (member(tptp_fun_X_0(difference(E!3, empty_set), E!3), E!3)),
% 0.19/0.44      inference(unit_resolution,[status(thm)],[93, 87])).
% 0.19/0.44  tff(95,plain,
% 0.19/0.44      ((~((~member(tptp_fun_X_0(difference(E!3, empty_set), E!3), E!3)) | member(tptp_fun_X_0(difference(E!3, empty_set), E!3), empty_set))) | (~member(tptp_fun_X_0(difference(E!3, empty_set), E!3), E!3)) | member(tptp_fun_X_0(difference(E!3, empty_set), E!3), empty_set)),
% 0.19/0.44      inference(tautology,[status(thm)],[])).
% 0.19/0.44  tff(96,plain,
% 0.19/0.44      ((~((~member(tptp_fun_X_0(difference(E!3, empty_set), E!3), E!3)) | member(tptp_fun_X_0(difference(E!3, empty_set), E!3), empty_set))) | member(tptp_fun_X_0(difference(E!3, empty_set), E!3), empty_set)),
% 0.19/0.44      inference(unit_resolution,[status(thm)],[95, 94])).
% 0.19/0.44  tff(97,plain,
% 0.19/0.44      (member(tptp_fun_X_0(difference(E!3, empty_set), E!3), empty_set)),
% 0.19/0.44      inference(unit_resolution,[status(thm)],[96, 92])).
% 0.19/0.44  tff(98,plain,
% 0.19/0.44      (^[X: $i] : refl((~member(X, empty_set)) <=> (~member(X, empty_set)))),
% 0.19/0.44      inference(bind,[status(th)],[])).
% 0.19/0.44  tff(99,plain,
% 0.19/0.44      (![X: $i] : (~member(X, empty_set)) <=> ![X: $i] : (~member(X, empty_set))),
% 0.19/0.44      inference(quant_intro,[status(thm)],[98])).
% 0.19/0.44  tff(100,plain,
% 0.19/0.44      (![X: $i] : (~member(X, empty_set)) <=> ![X: $i] : (~member(X, empty_set))),
% 0.19/0.44      inference(rewrite,[status(thm)],[])).
% 0.19/0.44  tff(101,axiom,(![X: $i] : (~member(X, empty_set))), file('/export/starexec/sandbox2/benchmark/Axioms/SET006+0.ax','empty_set')).
% 0.19/0.44  tff(102,plain,
% 0.19/0.44      (![X: $i] : (~member(X, empty_set))),
% 0.19/0.44      inference(modus_ponens,[status(thm)],[101, 100])).
% 0.19/0.44  tff(103,plain,(
% 0.19/0.44      ![X: $i] : (~member(X, empty_set))),
% 0.19/0.44      inference(skolemize,[status(sab)],[102])).
% 0.19/0.44  tff(104,plain,
% 0.19/0.44      (![X: $i] : (~member(X, empty_set))),
% 0.19/0.44      inference(modus_ponens,[status(thm)],[103, 99])).
% 0.19/0.44  tff(105,plain,
% 0.19/0.44      ((~![X: $i] : (~member(X, empty_set))) | (~member(tptp_fun_X_0(difference(E!3, empty_set), E!3), empty_set))),
% 0.19/0.44      inference(quant_inst,[status(thm)],[])).
% 0.19/0.44  tff(106,plain,
% 0.19/0.44      ($false),
% 0.19/0.44      inference(unit_resolution,[status(thm)],[105, 104, 97])).
% 0.19/0.44  % SZS output end Proof
%------------------------------------------------------------------------------