TSTP Solution File: SET815+4 by Z3---4.8.9.0

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : Z3---4.8.9.0
% Problem  : SET815+4 : TPTP v8.1.0. Released v3.2.0.
% Transfm  : none
% Format   : tptp
% Command  : z3_tptp -proof -model -t:%d -file:%s

% Computer : n017.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 05:08:08 EDT 2022

% Result   : Theorem 0.20s 0.53s
% Output   : Proof 0.20s
% Verified : 
% SZS Type : -

% Comments : 
%------------------------------------------------------------------------------
%----WARNING: Could not form TPTP format derivation
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.12/0.12  % Problem  : SET815+4 : TPTP v8.1.0. Released v3.2.0.
% 0.12/0.13  % Command  : z3_tptp -proof -model -t:%d -file:%s
% 0.13/0.34  % Computer : n017.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 07:28:54 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.
% 0.20/0.53  % SZS status Theorem
% 0.20/0.53  % SZS output start Proof
% 0.20/0.53  tff(member_type, type, (
% 0.20/0.53     member: ( $i * $i ) > $o)).
% 0.20/0.53  tff(tptp_fun_A_13_type, type, (
% 0.20/0.53     tptp_fun_A_13: $i)).
% 0.20/0.53  tff(tptp_fun_Y_1_type, type, (
% 0.20/0.53     tptp_fun_Y_1: ( $i * $i ) > $i)).
% 0.20/0.53  tff(tptp_fun_X_0_type, type, (
% 0.20/0.53     tptp_fun_X_0: ( $i * $i ) > $i)).
% 0.20/0.53  tff(sum_type, type, (
% 0.20/0.53     sum: $i > $i)).
% 0.20/0.53  tff(suc_type, type, (
% 0.20/0.53     suc: $i > $i)).
% 0.20/0.53  tff(singleton_type, type, (
% 0.20/0.53     singleton: $i > $i)).
% 0.20/0.53  tff(union_type, type, (
% 0.20/0.53     union: ( $i * $i ) > $i)).
% 0.20/0.53  tff(subset_type, type, (
% 0.20/0.53     subset: ( $i * $i ) > $o)).
% 0.20/0.53  tff(equal_set_type, type, (
% 0.20/0.53     equal_set: ( $i * $i ) > $o)).
% 0.20/0.53  tff(on_type, type, (
% 0.20/0.53     on: $i)).
% 0.20/0.53  tff(strict_well_order_type, type, (
% 0.20/0.53     strict_well_order: ( $i * $i ) > $o)).
% 0.20/0.53  tff(member_predicate_type, type, (
% 0.20/0.53     member_predicate: $i)).
% 0.20/0.53  tff(set_type, type, (
% 0.20/0.53     set: $i > $o)).
% 0.20/0.53  tff(tptp_fun_X_3_type, type, (
% 0.20/0.53     tptp_fun_X_3: $i > $i)).
% 0.20/0.53  tff(1,plain,
% 0.20/0.53      (^[X: $i, A: $i, B: $i] : refl((member(X, union(A, B)) <=> (member(X, B) | member(X, A))) <=> (member(X, union(A, B)) <=> (member(X, B) | member(X, A))))),
% 0.20/0.53      inference(bind,[status(th)],[])).
% 0.20/0.53  tff(2,plain,
% 0.20/0.53      (![X: $i, A: $i, B: $i] : (member(X, union(A, B)) <=> (member(X, B) | member(X, A))) <=> ![X: $i, A: $i, B: $i] : (member(X, union(A, B)) <=> (member(X, B) | member(X, A)))),
% 0.20/0.53      inference(quant_intro,[status(thm)],[1])).
% 0.20/0.53  tff(3,plain,
% 0.20/0.53      (![X: $i, A: $i, B: $i] : (member(X, union(A, B)) <=> (member(X, B) | member(X, A))) <=> ![X: $i, A: $i, B: $i] : (member(X, union(A, B)) <=> (member(X, B) | member(X, A)))),
% 0.20/0.53      inference(rewrite,[status(thm)],[])).
% 0.20/0.53  tff(4,plain,
% 0.20/0.53      (^[X: $i, A: $i, B: $i] : rewrite((member(X, union(A, B)) <=> (member(X, A) | member(X, B))) <=> (member(X, union(A, B)) <=> (member(X, B) | member(X, A))))),
% 0.20/0.53      inference(bind,[status(th)],[])).
% 0.20/0.53  tff(5,plain,
% 0.20/0.53      (![X: $i, A: $i, B: $i] : (member(X, union(A, B)) <=> (member(X, A) | member(X, B))) <=> ![X: $i, A: $i, B: $i] : (member(X, union(A, B)) <=> (member(X, B) | member(X, A)))),
% 0.20/0.53      inference(quant_intro,[status(thm)],[4])).
% 0.20/0.53  tff(6,axiom,(![X: $i, A: $i, B: $i] : (member(X, union(A, B)) <=> (member(X, A) | member(X, B)))), file('/export/starexec/sandbox2/benchmark/Axioms/SET006+0.ax','union')).
% 0.20/0.53  tff(7,plain,
% 0.20/0.53      (![X: $i, A: $i, B: $i] : (member(X, union(A, B)) <=> (member(X, B) | member(X, A)))),
% 0.20/0.53      inference(modus_ponens,[status(thm)],[6, 5])).
% 0.20/0.53  tff(8,plain,
% 0.20/0.53      (![X: $i, A: $i, B: $i] : (member(X, union(A, B)) <=> (member(X, B) | member(X, A)))),
% 0.20/0.53      inference(modus_ponens,[status(thm)],[7, 3])).
% 0.20/0.53  tff(9,plain,(
% 0.20/0.53      ![X: $i, A: $i, B: $i] : (member(X, union(A, B)) <=> (member(X, B) | member(X, A)))),
% 0.20/0.53      inference(skolemize,[status(sab)],[8])).
% 0.20/0.53  tff(10,plain,
% 0.20/0.53      (![X: $i, A: $i, B: $i] : (member(X, union(A, B)) <=> (member(X, B) | member(X, A)))),
% 0.20/0.53      inference(modus_ponens,[status(thm)],[9, 2])).
% 0.20/0.53  tff(11,plain,
% 0.20/0.53      ((~![X: $i, A: $i, B: $i] : (member(X, union(A, B)) <=> (member(X, B) | member(X, A)))) | (member(tptp_fun_Y_1(suc(A!13), tptp_fun_X_0(A!13, sum(suc(A!13)))), union(A!13, singleton(A!13))) <=> (member(tptp_fun_Y_1(suc(A!13), tptp_fun_X_0(A!13, sum(suc(A!13)))), singleton(A!13)) | member(tptp_fun_Y_1(suc(A!13), tptp_fun_X_0(A!13, sum(suc(A!13)))), A!13)))),
% 0.20/0.53      inference(quant_inst,[status(thm)],[])).
% 0.20/0.53  tff(12,plain,
% 0.20/0.53      (member(tptp_fun_Y_1(suc(A!13), tptp_fun_X_0(A!13, sum(suc(A!13)))), union(A!13, singleton(A!13))) <=> (member(tptp_fun_Y_1(suc(A!13), tptp_fun_X_0(A!13, sum(suc(A!13)))), singleton(A!13)) | member(tptp_fun_Y_1(suc(A!13), tptp_fun_X_0(A!13, sum(suc(A!13)))), A!13))),
% 0.20/0.53      inference(unit_resolution,[status(thm)],[11, 10])).
% 0.20/0.53  tff(13,plain,
% 0.20/0.53      (^[A: $i, X: $i] : refl((member(X, suc(A)) <=> member(X, union(A, singleton(A)))) <=> (member(X, suc(A)) <=> member(X, union(A, singleton(A)))))),
% 0.20/0.53      inference(bind,[status(th)],[])).
% 0.20/0.53  tff(14,plain,
% 0.20/0.53      (![A: $i, X: $i] : (member(X, suc(A)) <=> member(X, union(A, singleton(A)))) <=> ![A: $i, X: $i] : (member(X, suc(A)) <=> member(X, union(A, singleton(A))))),
% 0.20/0.53      inference(quant_intro,[status(thm)],[13])).
% 0.20/0.53  tff(15,plain,
% 0.20/0.53      (![A: $i, X: $i] : (member(X, suc(A)) <=> member(X, union(A, singleton(A)))) <=> ![A: $i, X: $i] : (member(X, suc(A)) <=> member(X, union(A, singleton(A))))),
% 0.20/0.53      inference(rewrite,[status(thm)],[])).
% 0.20/0.53  tff(16,axiom,(![A: $i, X: $i] : (member(X, suc(A)) <=> member(X, union(A, singleton(A))))), file('/export/starexec/sandbox2/benchmark/Axioms/SET006+4.ax','successor')).
% 0.20/0.53  tff(17,plain,
% 0.20/0.53      (![A: $i, X: $i] : (member(X, suc(A)) <=> member(X, union(A, singleton(A))))),
% 0.20/0.53      inference(modus_ponens,[status(thm)],[16, 15])).
% 0.20/0.53  tff(18,plain,(
% 0.20/0.53      ![A: $i, X: $i] : (member(X, suc(A)) <=> member(X, union(A, singleton(A))))),
% 0.20/0.53      inference(skolemize,[status(sab)],[17])).
% 0.20/0.53  tff(19,plain,
% 0.20/0.53      (![A: $i, X: $i] : (member(X, suc(A)) <=> member(X, union(A, singleton(A))))),
% 0.20/0.53      inference(modus_ponens,[status(thm)],[18, 14])).
% 0.20/0.53  tff(20,plain,
% 0.20/0.53      ((~![A: $i, X: $i] : (member(X, suc(A)) <=> member(X, union(A, singleton(A))))) | (member(tptp_fun_Y_1(suc(A!13), tptp_fun_X_0(A!13, sum(suc(A!13)))), suc(A!13)) <=> member(tptp_fun_Y_1(suc(A!13), tptp_fun_X_0(A!13, sum(suc(A!13)))), union(A!13, singleton(A!13))))),
% 0.20/0.53      inference(quant_inst,[status(thm)],[])).
% 0.20/0.53  tff(21,plain,
% 0.20/0.53      (member(tptp_fun_Y_1(suc(A!13), tptp_fun_X_0(A!13, sum(suc(A!13)))), suc(A!13)) <=> member(tptp_fun_Y_1(suc(A!13), tptp_fun_X_0(A!13, sum(suc(A!13)))), union(A!13, singleton(A!13)))),
% 0.20/0.53      inference(unit_resolution,[status(thm)],[20, 19])).
% 0.20/0.53  tff(22,assumption,((~((~subset(A!13, sum(suc(A!13)))) | ![X: $i] : ((~member(X, A!13)) | member(X, sum(suc(A!13)))))) | (~(subset(A!13, sum(suc(A!13))) | (~((~member(tptp_fun_X_0(sum(suc(A!13)), A!13), A!13)) | member(tptp_fun_X_0(sum(suc(A!13)), A!13), sum(suc(A!13)))))))), introduced(assumption)).
% 0.20/0.53  tff(23,plain,
% 0.20/0.53      (^[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))))))))),
% 0.20/0.53      inference(bind,[status(th)],[])).
% 0.20/0.53  tff(24,plain,
% 0.20/0.53      (![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)))))))),
% 0.20/0.53      inference(quant_intro,[status(thm)],[23])).
% 0.20/0.53  tff(25,plain,
% 0.20/0.53      (^[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))))))))),
% 0.20/0.53      inference(bind,[status(th)],[])).
% 0.20/0.53  tff(26,plain,
% 0.20/0.53      (![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)))))))),
% 0.20/0.53      inference(quant_intro,[status(thm)],[25])).
% 0.20/0.53  tff(27,plain,
% 0.20/0.53      (![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)))))))),
% 0.20/0.53      inference(transitivity,[status(thm)],[26, 24])).
% 0.20/0.53  tff(28,plain,
% 0.20/0.53      (^[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)))))))))),
% 0.20/0.53      inference(bind,[status(th)],[])).
% 0.20/0.53  tff(29,plain,
% 0.20/0.53      (![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)))))))),
% 0.20/0.53      inference(quant_intro,[status(thm)],[28])).
% 0.20/0.53  tff(30,plain,
% 0.20/0.53      (![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)))),
% 0.20/0.53      inference(rewrite,[status(thm)],[])).
% 0.20/0.53  tff(31,plain,
% 0.20/0.53      (^[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))))),
% 0.20/0.53      inference(bind,[status(th)],[])).
% 0.20/0.53  tff(32,plain,
% 0.20/0.53      (![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)))),
% 0.20/0.53      inference(quant_intro,[status(thm)],[31])).
% 0.20/0.53  tff(33,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')).
% 0.20/0.53  tff(34,plain,
% 0.20/0.53      (![A: $i, B: $i] : (subset(A, B) <=> ![X: $i] : ((~member(X, A)) | member(X, B)))),
% 0.20/0.53      inference(modus_ponens,[status(thm)],[33, 32])).
% 0.20/0.53  tff(35,plain,
% 0.20/0.53      (![A: $i, B: $i] : (subset(A, B) <=> ![X: $i] : ((~member(X, A)) | member(X, B)))),
% 0.20/0.53      inference(modus_ponens,[status(thm)],[34, 30])).
% 0.20/0.53  tff(36,plain,(
% 0.20/0.53      ![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)))))),
% 0.20/0.53      inference(skolemize,[status(sab)],[35])).
% 0.20/0.53  tff(37,plain,
% 0.20/0.53      (![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)))))))),
% 0.20/0.53      inference(modus_ponens,[status(thm)],[36, 29])).
% 0.20/0.53  tff(38,plain,
% 0.20/0.53      (![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)))))))),
% 0.20/0.53      inference(modus_ponens,[status(thm)],[37, 27])).
% 0.20/0.53  tff(39,plain,
% 0.20/0.53      ((~![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(A!13, sum(suc(A!13)))) | ![X: $i] : ((~member(X, A!13)) | member(X, sum(suc(A!13)))))) | (~(subset(A!13, sum(suc(A!13))) | (~((~member(tptp_fun_X_0(sum(suc(A!13)), A!13), A!13)) | member(tptp_fun_X_0(sum(suc(A!13)), A!13), sum(suc(A!13)))))))))),
% 0.20/0.53      inference(quant_inst,[status(thm)],[])).
% 0.20/0.53  tff(40,plain,
% 0.20/0.53      ($false),
% 0.20/0.53      inference(unit_resolution,[status(thm)],[39, 38, 22])).
% 0.20/0.53  tff(41,plain,(~((~((~subset(A!13, sum(suc(A!13)))) | ![X: $i] : ((~member(X, A!13)) | member(X, sum(suc(A!13)))))) | (~(subset(A!13, sum(suc(A!13))) | (~((~member(tptp_fun_X_0(sum(suc(A!13)), A!13), A!13)) | member(tptp_fun_X_0(sum(suc(A!13)), A!13), sum(suc(A!13))))))))), inference(lemma,lemma(discharge,[]))).
% 0.20/0.53  tff(42,plain,
% 0.20/0.53      (((~((~subset(A!13, sum(suc(A!13)))) | ![X: $i] : ((~member(X, A!13)) | member(X, sum(suc(A!13)))))) | (~(subset(A!13, sum(suc(A!13))) | (~((~member(tptp_fun_X_0(sum(suc(A!13)), A!13), A!13)) | member(tptp_fun_X_0(sum(suc(A!13)), A!13), sum(suc(A!13)))))))) | (subset(A!13, sum(suc(A!13))) | (~((~member(tptp_fun_X_0(sum(suc(A!13)), A!13), A!13)) | member(tptp_fun_X_0(sum(suc(A!13)), A!13), sum(suc(A!13))))))),
% 0.20/0.53      inference(tautology,[status(thm)],[])).
% 0.20/0.53  tff(43,plain,
% 0.20/0.53      (subset(A!13, sum(suc(A!13))) | (~((~member(tptp_fun_X_0(sum(suc(A!13)), A!13), A!13)) | member(tptp_fun_X_0(sum(suc(A!13)), A!13), sum(suc(A!13)))))),
% 0.20/0.53      inference(unit_resolution,[status(thm)],[42, 41])).
% 0.20/0.53  tff(44,plain,
% 0.20/0.53      (^[X: $i, A: $i] : refl((~((~((~member(X, sum(A))) | (~((~member(tptp_fun_Y_1(A, X), A)) | (~member(X, tptp_fun_Y_1(A, X))))))) | (~(member(X, sum(A)) | ![Y: $i] : ((~member(Y, A)) | (~member(X, Y))))))) <=> (~((~((~member(X, sum(A))) | (~((~member(tptp_fun_Y_1(A, X), A)) | (~member(X, tptp_fun_Y_1(A, X))))))) | (~(member(X, sum(A)) | ![Y: $i] : ((~member(Y, A)) | (~member(X, Y))))))))),
% 0.20/0.53      inference(bind,[status(th)],[])).
% 0.20/0.53  tff(45,plain,
% 0.20/0.53      (![X: $i, A: $i] : (~((~((~member(X, sum(A))) | (~((~member(tptp_fun_Y_1(A, X), A)) | (~member(X, tptp_fun_Y_1(A, X))))))) | (~(member(X, sum(A)) | ![Y: $i] : ((~member(Y, A)) | (~member(X, Y))))))) <=> ![X: $i, A: $i] : (~((~((~member(X, sum(A))) | (~((~member(tptp_fun_Y_1(A, X), A)) | (~member(X, tptp_fun_Y_1(A, X))))))) | (~(member(X, sum(A)) | ![Y: $i] : ((~member(Y, A)) | (~member(X, Y)))))))),
% 0.20/0.53      inference(quant_intro,[status(thm)],[44])).
% 0.20/0.53  tff(46,plain,
% 0.20/0.53      (^[X: $i, A: $i] : rewrite((~((~((~member(X, sum(A))) | (~((~member(tptp_fun_Y_1(A, X), A)) | (~member(X, tptp_fun_Y_1(A, X))))))) | (~(member(X, sum(A)) | ![Y: $i] : ((~member(Y, A)) | (~member(X, Y))))))) <=> (~((~((~member(X, sum(A))) | (~((~member(tptp_fun_Y_1(A, X), A)) | (~member(X, tptp_fun_Y_1(A, X))))))) | (~(member(X, sum(A)) | ![Y: $i] : ((~member(Y, A)) | (~member(X, Y))))))))),
% 0.20/0.53      inference(bind,[status(th)],[])).
% 0.20/0.53  tff(47,plain,
% 0.20/0.53      (![X: $i, A: $i] : (~((~((~member(X, sum(A))) | (~((~member(tptp_fun_Y_1(A, X), A)) | (~member(X, tptp_fun_Y_1(A, X))))))) | (~(member(X, sum(A)) | ![Y: $i] : ((~member(Y, A)) | (~member(X, Y))))))) <=> ![X: $i, A: $i] : (~((~((~member(X, sum(A))) | (~((~member(tptp_fun_Y_1(A, X), A)) | (~member(X, tptp_fun_Y_1(A, X))))))) | (~(member(X, sum(A)) | ![Y: $i] : ((~member(Y, A)) | (~member(X, Y)))))))),
% 0.20/0.53      inference(quant_intro,[status(thm)],[46])).
% 0.20/0.53  tff(48,plain,
% 0.20/0.53      (![X: $i, A: $i] : (~((~((~member(X, sum(A))) | (~((~member(tptp_fun_Y_1(A, X), A)) | (~member(X, tptp_fun_Y_1(A, X))))))) | (~(member(X, sum(A)) | ![Y: $i] : ((~member(Y, A)) | (~member(X, Y))))))) <=> ![X: $i, A: $i] : (~((~((~member(X, sum(A))) | (~((~member(tptp_fun_Y_1(A, X), A)) | (~member(X, tptp_fun_Y_1(A, X))))))) | (~(member(X, sum(A)) | ![Y: $i] : ((~member(Y, A)) | (~member(X, Y)))))))),
% 0.20/0.53      inference(transitivity,[status(thm)],[47, 45])).
% 0.20/0.53  tff(49,plain,
% 0.20/0.53      (^[X: $i, A: $i] : trans(monotonicity(rewrite(((~member(X, sum(A))) | (member(tptp_fun_Y_1(A, X), A) & member(X, tptp_fun_Y_1(A, X)))) <=> ((~member(X, sum(A))) | (~((~member(tptp_fun_Y_1(A, X), A)) | (~member(X, tptp_fun_Y_1(A, X))))))), rewrite((member(X, sum(A)) | ![Y: $i] : (~(member(Y, A) & member(X, Y)))) <=> (member(X, sum(A)) | ![Y: $i] : ((~member(Y, A)) | (~member(X, Y))))), ((((~member(X, sum(A))) | (member(tptp_fun_Y_1(A, X), A) & member(X, tptp_fun_Y_1(A, X)))) & (member(X, sum(A)) | ![Y: $i] : (~(member(Y, A) & member(X, Y))))) <=> (((~member(X, sum(A))) | (~((~member(tptp_fun_Y_1(A, X), A)) | (~member(X, tptp_fun_Y_1(A, X)))))) & (member(X, sum(A)) | ![Y: $i] : ((~member(Y, A)) | (~member(X, Y))))))), rewrite((((~member(X, sum(A))) | (~((~member(tptp_fun_Y_1(A, X), A)) | (~member(X, tptp_fun_Y_1(A, X)))))) & (member(X, sum(A)) | ![Y: $i] : ((~member(Y, A)) | (~member(X, Y))))) <=> (~((~((~member(X, sum(A))) | (~((~member(tptp_fun_Y_1(A, X), A)) | (~member(X, tptp_fun_Y_1(A, X))))))) | (~(member(X, sum(A)) | ![Y: $i] : ((~member(Y, A)) | (~member(X, Y)))))))), ((((~member(X, sum(A))) | (member(tptp_fun_Y_1(A, X), A) & member(X, tptp_fun_Y_1(A, X)))) & (member(X, sum(A)) | ![Y: $i] : (~(member(Y, A) & member(X, Y))))) <=> (~((~((~member(X, sum(A))) | (~((~member(tptp_fun_Y_1(A, X), A)) | (~member(X, tptp_fun_Y_1(A, X))))))) | (~(member(X, sum(A)) | ![Y: $i] : ((~member(Y, A)) | (~member(X, Y)))))))))),
% 0.20/0.53      inference(bind,[status(th)],[])).
% 0.20/0.53  tff(50,plain,
% 0.20/0.53      (![X: $i, A: $i] : (((~member(X, sum(A))) | (member(tptp_fun_Y_1(A, X), A) & member(X, tptp_fun_Y_1(A, X)))) & (member(X, sum(A)) | ![Y: $i] : (~(member(Y, A) & member(X, Y))))) <=> ![X: $i, A: $i] : (~((~((~member(X, sum(A))) | (~((~member(tptp_fun_Y_1(A, X), A)) | (~member(X, tptp_fun_Y_1(A, X))))))) | (~(member(X, sum(A)) | ![Y: $i] : ((~member(Y, A)) | (~member(X, Y)))))))),
% 0.20/0.53      inference(quant_intro,[status(thm)],[49])).
% 0.20/0.53  tff(51,plain,
% 0.20/0.53      (![X: $i, A: $i] : (member(X, sum(A)) <=> ?[Y: $i] : (member(Y, A) & member(X, Y))) <=> ![X: $i, A: $i] : (member(X, sum(A)) <=> ?[Y: $i] : (member(Y, A) & member(X, Y)))),
% 0.20/0.53      inference(rewrite,[status(thm)],[])).
% 0.20/0.53  tff(52,axiom,(![X: $i, A: $i] : (member(X, sum(A)) <=> ?[Y: $i] : (member(Y, A) & member(X, Y)))), file('/export/starexec/sandbox2/benchmark/Axioms/SET006+0.ax','sum')).
% 0.20/0.53  tff(53,plain,
% 0.20/0.53      (![X: $i, A: $i] : (member(X, sum(A)) <=> ?[Y: $i] : (member(Y, A) & member(X, Y)))),
% 0.20/0.53      inference(modus_ponens,[status(thm)],[52, 51])).
% 0.20/0.53  tff(54,plain,(
% 0.20/0.53      ![X: $i, A: $i] : (((~member(X, sum(A))) | (member(tptp_fun_Y_1(A, X), A) & member(X, tptp_fun_Y_1(A, X)))) & (member(X, sum(A)) | ![Y: $i] : (~(member(Y, A) & member(X, Y)))))),
% 0.20/0.53      inference(skolemize,[status(sab)],[53])).
% 0.20/0.53  tff(55,plain,
% 0.20/0.53      (![X: $i, A: $i] : (~((~((~member(X, sum(A))) | (~((~member(tptp_fun_Y_1(A, X), A)) | (~member(X, tptp_fun_Y_1(A, X))))))) | (~(member(X, sum(A)) | ![Y: $i] : ((~member(Y, A)) | (~member(X, Y)))))))),
% 0.20/0.53      inference(modus_ponens,[status(thm)],[54, 50])).
% 0.20/0.53  tff(56,plain,
% 0.20/0.53      (![X: $i, A: $i] : (~((~((~member(X, sum(A))) | (~((~member(tptp_fun_Y_1(A, X), A)) | (~member(X, tptp_fun_Y_1(A, X))))))) | (~(member(X, sum(A)) | ![Y: $i] : ((~member(Y, A)) | (~member(X, Y)))))))),
% 0.20/0.53      inference(modus_ponens,[status(thm)],[55, 48])).
% 0.20/0.53  tff(57,plain,
% 0.20/0.53      (((~![X: $i, A: $i] : (~((~((~member(X, sum(A))) | (~((~member(tptp_fun_Y_1(A, X), A)) | (~member(X, tptp_fun_Y_1(A, X))))))) | (~(member(X, sum(A)) | ![Y: $i] : ((~member(Y, A)) | (~member(X, Y)))))))) | (~((~((~member(tptp_fun_X_0(sum(suc(A!13)), A!13), sum(suc(A!13)))) | (~((~member(tptp_fun_X_0(sum(suc(A!13)), A!13), tptp_fun_Y_1(suc(A!13), tptp_fun_X_0(sum(suc(A!13)), A!13)))) | (~member(tptp_fun_Y_1(suc(A!13), tptp_fun_X_0(sum(suc(A!13)), A!13)), suc(A!13))))))) | (~(member(tptp_fun_X_0(sum(suc(A!13)), A!13), sum(suc(A!13))) | ![Y: $i] : ((~member(Y, suc(A!13))) | (~member(tptp_fun_X_0(sum(suc(A!13)), A!13), Y)))))))) <=> ((~![X: $i, A: $i] : (~((~((~member(X, sum(A))) | (~((~member(tptp_fun_Y_1(A, X), A)) | (~member(X, tptp_fun_Y_1(A, X))))))) | (~(member(X, sum(A)) | ![Y: $i] : ((~member(Y, A)) | (~member(X, Y)))))))) | (~((~((~member(tptp_fun_X_0(sum(suc(A!13)), A!13), sum(suc(A!13)))) | (~((~member(tptp_fun_X_0(sum(suc(A!13)), A!13), tptp_fun_Y_1(suc(A!13), tptp_fun_X_0(sum(suc(A!13)), A!13)))) | (~member(tptp_fun_Y_1(suc(A!13), tptp_fun_X_0(sum(suc(A!13)), A!13)), suc(A!13))))))) | (~(member(tptp_fun_X_0(sum(suc(A!13)), A!13), sum(suc(A!13))) | ![Y: $i] : ((~member(Y, suc(A!13))) | (~member(tptp_fun_X_0(sum(suc(A!13)), A!13), Y))))))))),
% 0.20/0.53      inference(rewrite,[status(thm)],[])).
% 0.20/0.53  tff(58,plain,
% 0.20/0.53      ((~((~((~member(tptp_fun_X_0(sum(suc(A!13)), A!13), sum(suc(A!13)))) | (~((~member(tptp_fun_Y_1(suc(A!13), tptp_fun_X_0(sum(suc(A!13)), A!13)), suc(A!13))) | (~member(tptp_fun_X_0(sum(suc(A!13)), A!13), tptp_fun_Y_1(suc(A!13), tptp_fun_X_0(sum(suc(A!13)), A!13)))))))) | (~(member(tptp_fun_X_0(sum(suc(A!13)), A!13), sum(suc(A!13))) | ![Y: $i] : ((~member(Y, suc(A!13))) | (~member(tptp_fun_X_0(sum(suc(A!13)), A!13), Y))))))) <=> (~((~((~member(tptp_fun_X_0(sum(suc(A!13)), A!13), sum(suc(A!13)))) | (~((~member(tptp_fun_X_0(sum(suc(A!13)), A!13), tptp_fun_Y_1(suc(A!13), tptp_fun_X_0(sum(suc(A!13)), A!13)))) | (~member(tptp_fun_Y_1(suc(A!13), tptp_fun_X_0(sum(suc(A!13)), A!13)), suc(A!13))))))) | (~(member(tptp_fun_X_0(sum(suc(A!13)), A!13), sum(suc(A!13))) | ![Y: $i] : ((~member(Y, suc(A!13))) | (~member(tptp_fun_X_0(sum(suc(A!13)), A!13), Y)))))))),
% 0.20/0.54      inference(rewrite,[status(thm)],[])).
% 0.20/0.54  tff(59,plain,
% 0.20/0.54      (((~![X: $i, A: $i] : (~((~((~member(X, sum(A))) | (~((~member(tptp_fun_Y_1(A, X), A)) | (~member(X, tptp_fun_Y_1(A, X))))))) | (~(member(X, sum(A)) | ![Y: $i] : ((~member(Y, A)) | (~member(X, Y)))))))) | (~((~((~member(tptp_fun_X_0(sum(suc(A!13)), A!13), sum(suc(A!13)))) | (~((~member(tptp_fun_Y_1(suc(A!13), tptp_fun_X_0(sum(suc(A!13)), A!13)), suc(A!13))) | (~member(tptp_fun_X_0(sum(suc(A!13)), A!13), tptp_fun_Y_1(suc(A!13), tptp_fun_X_0(sum(suc(A!13)), A!13)))))))) | (~(member(tptp_fun_X_0(sum(suc(A!13)), A!13), sum(suc(A!13))) | ![Y: $i] : ((~member(Y, suc(A!13))) | (~member(tptp_fun_X_0(sum(suc(A!13)), A!13), Y)))))))) <=> ((~![X: $i, A: $i] : (~((~((~member(X, sum(A))) | (~((~member(tptp_fun_Y_1(A, X), A)) | (~member(X, tptp_fun_Y_1(A, X))))))) | (~(member(X, sum(A)) | ![Y: $i] : ((~member(Y, A)) | (~member(X, Y)))))))) | (~((~((~member(tptp_fun_X_0(sum(suc(A!13)), A!13), sum(suc(A!13)))) | (~((~member(tptp_fun_X_0(sum(suc(A!13)), A!13), tptp_fun_Y_1(suc(A!13), tptp_fun_X_0(sum(suc(A!13)), A!13)))) | (~member(tptp_fun_Y_1(suc(A!13), tptp_fun_X_0(sum(suc(A!13)), A!13)), suc(A!13))))))) | (~(member(tptp_fun_X_0(sum(suc(A!13)), A!13), sum(suc(A!13))) | ![Y: $i] : ((~member(Y, suc(A!13))) | (~member(tptp_fun_X_0(sum(suc(A!13)), A!13), Y))))))))),
% 0.20/0.54      inference(monotonicity,[status(thm)],[58])).
% 0.20/0.54  tff(60,plain,
% 0.20/0.54      (((~![X: $i, A: $i] : (~((~((~member(X, sum(A))) | (~((~member(tptp_fun_Y_1(A, X), A)) | (~member(X, tptp_fun_Y_1(A, X))))))) | (~(member(X, sum(A)) | ![Y: $i] : ((~member(Y, A)) | (~member(X, Y)))))))) | (~((~((~member(tptp_fun_X_0(sum(suc(A!13)), A!13), sum(suc(A!13)))) | (~((~member(tptp_fun_Y_1(suc(A!13), tptp_fun_X_0(sum(suc(A!13)), A!13)), suc(A!13))) | (~member(tptp_fun_X_0(sum(suc(A!13)), A!13), tptp_fun_Y_1(suc(A!13), tptp_fun_X_0(sum(suc(A!13)), A!13)))))))) | (~(member(tptp_fun_X_0(sum(suc(A!13)), A!13), sum(suc(A!13))) | ![Y: $i] : ((~member(Y, suc(A!13))) | (~member(tptp_fun_X_0(sum(suc(A!13)), A!13), Y)))))))) <=> ((~![X: $i, A: $i] : (~((~((~member(X, sum(A))) | (~((~member(tptp_fun_Y_1(A, X), A)) | (~member(X, tptp_fun_Y_1(A, X))))))) | (~(member(X, sum(A)) | ![Y: $i] : ((~member(Y, A)) | (~member(X, Y)))))))) | (~((~((~member(tptp_fun_X_0(sum(suc(A!13)), A!13), sum(suc(A!13)))) | (~((~member(tptp_fun_X_0(sum(suc(A!13)), A!13), tptp_fun_Y_1(suc(A!13), tptp_fun_X_0(sum(suc(A!13)), A!13)))) | (~member(tptp_fun_Y_1(suc(A!13), tptp_fun_X_0(sum(suc(A!13)), A!13)), suc(A!13))))))) | (~(member(tptp_fun_X_0(sum(suc(A!13)), A!13), sum(suc(A!13))) | ![Y: $i] : ((~member(Y, suc(A!13))) | (~member(tptp_fun_X_0(sum(suc(A!13)), A!13), Y))))))))),
% 0.20/0.54      inference(transitivity,[status(thm)],[59, 57])).
% 0.20/0.54  tff(61,plain,
% 0.20/0.54      ((~![X: $i, A: $i] : (~((~((~member(X, sum(A))) | (~((~member(tptp_fun_Y_1(A, X), A)) | (~member(X, tptp_fun_Y_1(A, X))))))) | (~(member(X, sum(A)) | ![Y: $i] : ((~member(Y, A)) | (~member(X, Y)))))))) | (~((~((~member(tptp_fun_X_0(sum(suc(A!13)), A!13), sum(suc(A!13)))) | (~((~member(tptp_fun_Y_1(suc(A!13), tptp_fun_X_0(sum(suc(A!13)), A!13)), suc(A!13))) | (~member(tptp_fun_X_0(sum(suc(A!13)), A!13), tptp_fun_Y_1(suc(A!13), tptp_fun_X_0(sum(suc(A!13)), A!13)))))))) | (~(member(tptp_fun_X_0(sum(suc(A!13)), A!13), sum(suc(A!13))) | ![Y: $i] : ((~member(Y, suc(A!13))) | (~member(tptp_fun_X_0(sum(suc(A!13)), A!13), Y)))))))),
% 0.20/0.54      inference(quant_inst,[status(thm)],[])).
% 0.20/0.54  tff(62,plain,
% 0.20/0.54      ((~![X: $i, A: $i] : (~((~((~member(X, sum(A))) | (~((~member(tptp_fun_Y_1(A, X), A)) | (~member(X, tptp_fun_Y_1(A, X))))))) | (~(member(X, sum(A)) | ![Y: $i] : ((~member(Y, A)) | (~member(X, Y)))))))) | (~((~((~member(tptp_fun_X_0(sum(suc(A!13)), A!13), sum(suc(A!13)))) | (~((~member(tptp_fun_X_0(sum(suc(A!13)), A!13), tptp_fun_Y_1(suc(A!13), tptp_fun_X_0(sum(suc(A!13)), A!13)))) | (~member(tptp_fun_Y_1(suc(A!13), tptp_fun_X_0(sum(suc(A!13)), A!13)), suc(A!13))))))) | (~(member(tptp_fun_X_0(sum(suc(A!13)), A!13), sum(suc(A!13))) | ![Y: $i] : ((~member(Y, suc(A!13))) | (~member(tptp_fun_X_0(sum(suc(A!13)), A!13), Y)))))))),
% 0.20/0.54      inference(modus_ponens,[status(thm)],[61, 60])).
% 0.20/0.54  tff(63,plain,
% 0.20/0.54      (~((~((~member(tptp_fun_X_0(sum(suc(A!13)), A!13), sum(suc(A!13)))) | (~((~member(tptp_fun_X_0(sum(suc(A!13)), A!13), tptp_fun_Y_1(suc(A!13), tptp_fun_X_0(sum(suc(A!13)), A!13)))) | (~member(tptp_fun_Y_1(suc(A!13), tptp_fun_X_0(sum(suc(A!13)), A!13)), suc(A!13))))))) | (~(member(tptp_fun_X_0(sum(suc(A!13)), A!13), sum(suc(A!13))) | ![Y: $i] : ((~member(Y, suc(A!13))) | (~member(tptp_fun_X_0(sum(suc(A!13)), A!13), Y))))))),
% 0.20/0.54      inference(unit_resolution,[status(thm)],[62, 56])).
% 0.20/0.54  tff(64,plain,
% 0.20/0.54      (((~((~member(tptp_fun_X_0(sum(suc(A!13)), A!13), sum(suc(A!13)))) | (~((~member(tptp_fun_X_0(sum(suc(A!13)), A!13), tptp_fun_Y_1(suc(A!13), tptp_fun_X_0(sum(suc(A!13)), A!13)))) | (~member(tptp_fun_Y_1(suc(A!13), tptp_fun_X_0(sum(suc(A!13)), A!13)), suc(A!13))))))) | (~(member(tptp_fun_X_0(sum(suc(A!13)), A!13), sum(suc(A!13))) | ![Y: $i] : ((~member(Y, suc(A!13))) | (~member(tptp_fun_X_0(sum(suc(A!13)), A!13), Y)))))) | (member(tptp_fun_X_0(sum(suc(A!13)), A!13), sum(suc(A!13))) | ![Y: $i] : ((~member(Y, suc(A!13))) | (~member(tptp_fun_X_0(sum(suc(A!13)), A!13), Y))))),
% 0.20/0.54      inference(tautology,[status(thm)],[])).
% 0.20/0.54  tff(65,plain,
% 0.20/0.54      (member(tptp_fun_X_0(sum(suc(A!13)), A!13), sum(suc(A!13))) | ![Y: $i] : ((~member(Y, suc(A!13))) | (~member(tptp_fun_X_0(sum(suc(A!13)), A!13), Y)))),
% 0.20/0.54      inference(unit_resolution,[status(thm)],[64, 63])).
% 0.20/0.54  tff(66,assumption,(~((~member(tptp_fun_X_0(sum(suc(A!13)), A!13), A!13)) | member(tptp_fun_X_0(sum(suc(A!13)), A!13), sum(suc(A!13))))), introduced(assumption)).
% 0.20/0.54  tff(67,plain,
% 0.20/0.54      (((~member(tptp_fun_X_0(sum(suc(A!13)), A!13), A!13)) | member(tptp_fun_X_0(sum(suc(A!13)), A!13), sum(suc(A!13)))) | (~member(tptp_fun_X_0(sum(suc(A!13)), A!13), sum(suc(A!13))))),
% 0.20/0.54      inference(tautology,[status(thm)],[])).
% 0.20/0.54  tff(68,plain,
% 0.20/0.54      (~member(tptp_fun_X_0(sum(suc(A!13)), A!13), sum(suc(A!13)))),
% 0.20/0.54      inference(unit_resolution,[status(thm)],[67, 66])).
% 0.20/0.54  tff(69,plain,
% 0.20/0.54      ((~(member(tptp_fun_X_0(sum(suc(A!13)), A!13), sum(suc(A!13))) | ![Y: $i] : ((~member(Y, suc(A!13))) | (~member(tptp_fun_X_0(sum(suc(A!13)), A!13), Y))))) | member(tptp_fun_X_0(sum(suc(A!13)), A!13), sum(suc(A!13))) | ![Y: $i] : ((~member(Y, suc(A!13))) | (~member(tptp_fun_X_0(sum(suc(A!13)), A!13), Y)))),
% 0.20/0.54      inference(tautology,[status(thm)],[])).
% 0.20/0.54  tff(70,plain,
% 0.20/0.54      ((~(member(tptp_fun_X_0(sum(suc(A!13)), A!13), sum(suc(A!13))) | ![Y: $i] : ((~member(Y, suc(A!13))) | (~member(tptp_fun_X_0(sum(suc(A!13)), A!13), Y))))) | ![Y: $i] : ((~member(Y, suc(A!13))) | (~member(tptp_fun_X_0(sum(suc(A!13)), A!13), Y)))),
% 0.20/0.54      inference(unit_resolution,[status(thm)],[69, 68])).
% 0.20/0.54  tff(71,plain,
% 0.20/0.54      (![Y: $i] : ((~member(Y, suc(A!13))) | (~member(tptp_fun_X_0(sum(suc(A!13)), A!13), Y)))),
% 0.20/0.54      inference(unit_resolution,[status(thm)],[70, 65])).
% 0.20/0.54  tff(72,plain,
% 0.20/0.54      (((~member(tptp_fun_X_0(sum(suc(A!13)), A!13), A!13)) | member(tptp_fun_X_0(sum(suc(A!13)), A!13), sum(suc(A!13)))) | member(tptp_fun_X_0(sum(suc(A!13)), A!13), A!13)),
% 0.20/0.54      inference(tautology,[status(thm)],[])).
% 0.20/0.54  tff(73,plain,
% 0.20/0.54      (member(tptp_fun_X_0(sum(suc(A!13)), A!13), A!13)),
% 0.20/0.54      inference(unit_resolution,[status(thm)],[72, 66])).
% 0.20/0.54  tff(74,assumption,(~(member(A!13, suc(A!13)) <=> member(A!13, union(A!13, singleton(A!13))))), introduced(assumption)).
% 0.20/0.54  tff(75,plain,
% 0.20/0.54      ((~![A: $i, X: $i] : (member(X, suc(A)) <=> member(X, union(A, singleton(A))))) | (member(A!13, suc(A!13)) <=> member(A!13, union(A!13, singleton(A!13))))),
% 0.20/0.54      inference(quant_inst,[status(thm)],[])).
% 0.20/0.54  tff(76,plain,
% 0.20/0.54      ($false),
% 0.20/0.54      inference(unit_resolution,[status(thm)],[75, 19, 74])).
% 0.20/0.54  tff(77,plain,(member(A!13, suc(A!13)) <=> member(A!13, union(A!13, singleton(A!13)))), inference(lemma,lemma(discharge,[]))).
% 0.20/0.54  tff(78,assumption,(~(member(A!13, union(A!13, singleton(A!13))) <=> (member(A!13, A!13) | member(A!13, singleton(A!13))))), introduced(assumption)).
% 0.20/0.54  tff(79,plain,
% 0.20/0.54      (((~![X: $i, A: $i, B: $i] : (member(X, union(A, B)) <=> (member(X, B) | member(X, A)))) | (member(A!13, union(A!13, singleton(A!13))) <=> (member(A!13, A!13) | member(A!13, singleton(A!13))))) <=> ((~![X: $i, A: $i, B: $i] : (member(X, union(A, B)) <=> (member(X, B) | member(X, A)))) | (member(A!13, union(A!13, singleton(A!13))) <=> (member(A!13, A!13) | member(A!13, singleton(A!13)))))),
% 0.20/0.54      inference(rewrite,[status(thm)],[])).
% 0.20/0.54  tff(80,plain,
% 0.20/0.54      ((member(A!13, union(A!13, singleton(A!13))) <=> (member(A!13, singleton(A!13)) | member(A!13, A!13))) <=> (member(A!13, union(A!13, singleton(A!13))) <=> (member(A!13, A!13) | member(A!13, singleton(A!13))))),
% 0.20/0.54      inference(rewrite,[status(thm)],[])).
% 0.20/0.54  tff(81,plain,
% 0.20/0.54      (((~![X: $i, A: $i, B: $i] : (member(X, union(A, B)) <=> (member(X, B) | member(X, A)))) | (member(A!13, union(A!13, singleton(A!13))) <=> (member(A!13, singleton(A!13)) | member(A!13, A!13)))) <=> ((~![X: $i, A: $i, B: $i] : (member(X, union(A, B)) <=> (member(X, B) | member(X, A)))) | (member(A!13, union(A!13, singleton(A!13))) <=> (member(A!13, A!13) | member(A!13, singleton(A!13)))))),
% 0.20/0.54      inference(monotonicity,[status(thm)],[80])).
% 0.20/0.54  tff(82,plain,
% 0.20/0.54      (((~![X: $i, A: $i, B: $i] : (member(X, union(A, B)) <=> (member(X, B) | member(X, A)))) | (member(A!13, union(A!13, singleton(A!13))) <=> (member(A!13, singleton(A!13)) | member(A!13, A!13)))) <=> ((~![X: $i, A: $i, B: $i] : (member(X, union(A, B)) <=> (member(X, B) | member(X, A)))) | (member(A!13, union(A!13, singleton(A!13))) <=> (member(A!13, A!13) | member(A!13, singleton(A!13)))))),
% 0.20/0.54      inference(transitivity,[status(thm)],[81, 79])).
% 0.20/0.54  tff(83,plain,
% 0.20/0.54      ((~![X: $i, A: $i, B: $i] : (member(X, union(A, B)) <=> (member(X, B) | member(X, A)))) | (member(A!13, union(A!13, singleton(A!13))) <=> (member(A!13, singleton(A!13)) | member(A!13, A!13)))),
% 0.20/0.54      inference(quant_inst,[status(thm)],[])).
% 0.20/0.54  tff(84,plain,
% 0.20/0.54      ((~![X: $i, A: $i, B: $i] : (member(X, union(A, B)) <=> (member(X, B) | member(X, A)))) | (member(A!13, union(A!13, singleton(A!13))) <=> (member(A!13, A!13) | member(A!13, singleton(A!13))))),
% 0.20/0.54      inference(modus_ponens,[status(thm)],[83, 82])).
% 0.20/0.54  tff(85,plain,
% 0.20/0.54      ($false),
% 0.20/0.54      inference(unit_resolution,[status(thm)],[84, 10, 78])).
% 0.20/0.54  tff(86,plain,(member(A!13, union(A!13, singleton(A!13))) <=> (member(A!13, A!13) | member(A!13, singleton(A!13)))), inference(lemma,lemma(discharge,[]))).
% 0.20/0.54  tff(87,assumption,(~member(A!13, singleton(A!13))), introduced(assumption)).
% 0.20/0.54  tff(88,plain,
% 0.20/0.54      (^[X: $i, A: $i] : refl((member(X, singleton(A)) <=> (X = A)) <=> (member(X, singleton(A)) <=> (X = A)))),
% 0.20/0.54      inference(bind,[status(th)],[])).
% 0.20/0.54  tff(89,plain,
% 0.20/0.54      (![X: $i, A: $i] : (member(X, singleton(A)) <=> (X = A)) <=> ![X: $i, A: $i] : (member(X, singleton(A)) <=> (X = A))),
% 0.20/0.54      inference(quant_intro,[status(thm)],[88])).
% 0.20/0.54  tff(90,plain,
% 0.20/0.54      (![X: $i, A: $i] : (member(X, singleton(A)) <=> (X = A)) <=> ![X: $i, A: $i] : (member(X, singleton(A)) <=> (X = A))),
% 0.20/0.54      inference(rewrite,[status(thm)],[])).
% 0.20/0.54  tff(91,axiom,(![X: $i, A: $i] : (member(X, singleton(A)) <=> (X = A))), file('/export/starexec/sandbox2/benchmark/Axioms/SET006+0.ax','singleton')).
% 0.20/0.54  tff(92,plain,
% 0.20/0.54      (![X: $i, A: $i] : (member(X, singleton(A)) <=> (X = A))),
% 0.20/0.54      inference(modus_ponens,[status(thm)],[91, 90])).
% 0.20/0.54  tff(93,plain,(
% 0.20/0.54      ![X: $i, A: $i] : (member(X, singleton(A)) <=> (X = A))),
% 0.20/0.54      inference(skolemize,[status(sab)],[92])).
% 0.20/0.54  tff(94,plain,
% 0.20/0.54      (![X: $i, A: $i] : (member(X, singleton(A)) <=> (X = A))),
% 0.20/0.54      inference(modus_ponens,[status(thm)],[93, 89])).
% 0.20/0.54  tff(95,plain,
% 0.20/0.54      (((~![X: $i, A: $i] : (member(X, singleton(A)) <=> (X = A))) | member(A!13, singleton(A!13))) <=> ((~![X: $i, A: $i] : (member(X, singleton(A)) <=> (X = A))) | member(A!13, singleton(A!13)))),
% 0.20/0.54      inference(rewrite,[status(thm)],[])).
% 0.20/0.54  tff(96,plain,
% 0.20/0.54      ((member(A!13, singleton(A!13)) <=> $true) <=> member(A!13, singleton(A!13))),
% 0.20/0.54      inference(rewrite,[status(thm)],[])).
% 0.20/0.54  tff(97,plain,
% 0.20/0.54      ((A!13 = A!13) <=> $true),
% 0.20/0.54      inference(rewrite,[status(thm)],[])).
% 0.20/0.54  tff(98,plain,
% 0.20/0.54      ((member(A!13, singleton(A!13)) <=> (A!13 = A!13)) <=> (member(A!13, singleton(A!13)) <=> $true)),
% 0.20/0.54      inference(monotonicity,[status(thm)],[97])).
% 0.20/0.54  tff(99,plain,
% 0.20/0.54      ((member(A!13, singleton(A!13)) <=> (A!13 = A!13)) <=> member(A!13, singleton(A!13))),
% 0.20/0.54      inference(transitivity,[status(thm)],[98, 96])).
% 0.20/0.54  tff(100,plain,
% 0.20/0.54      (((~![X: $i, A: $i] : (member(X, singleton(A)) <=> (X = A))) | (member(A!13, singleton(A!13)) <=> (A!13 = A!13))) <=> ((~![X: $i, A: $i] : (member(X, singleton(A)) <=> (X = A))) | member(A!13, singleton(A!13)))),
% 0.20/0.54      inference(monotonicity,[status(thm)],[99])).
% 0.20/0.54  tff(101,plain,
% 0.20/0.54      (((~![X: $i, A: $i] : (member(X, singleton(A)) <=> (X = A))) | (member(A!13, singleton(A!13)) <=> (A!13 = A!13))) <=> ((~![X: $i, A: $i] : (member(X, singleton(A)) <=> (X = A))) | member(A!13, singleton(A!13)))),
% 0.20/0.54      inference(transitivity,[status(thm)],[100, 95])).
% 0.20/0.54  tff(102,plain,
% 0.20/0.54      ((~![X: $i, A: $i] : (member(X, singleton(A)) <=> (X = A))) | (member(A!13, singleton(A!13)) <=> (A!13 = A!13))),
% 0.20/0.54      inference(quant_inst,[status(thm)],[])).
% 0.20/0.54  tff(103,plain,
% 0.20/0.54      ((~![X: $i, A: $i] : (member(X, singleton(A)) <=> (X = A))) | member(A!13, singleton(A!13))),
% 0.20/0.54      inference(modus_ponens,[status(thm)],[102, 101])).
% 0.20/0.54  tff(104,plain,
% 0.20/0.54      ($false),
% 0.20/0.54      inference(unit_resolution,[status(thm)],[103, 94, 87])).
% 0.20/0.54  tff(105,plain,(member(A!13, singleton(A!13))), inference(lemma,lemma(discharge,[]))).
% 0.20/0.54  tff(106,plain,
% 0.20/0.54      ((member(A!13, A!13) | member(A!13, singleton(A!13))) | (~member(A!13, singleton(A!13)))),
% 0.20/0.54      inference(tautology,[status(thm)],[])).
% 0.20/0.54  tff(107,plain,
% 0.20/0.54      (member(A!13, A!13) | member(A!13, singleton(A!13))),
% 0.20/0.54      inference(unit_resolution,[status(thm)],[106, 105])).
% 0.20/0.54  tff(108,plain,
% 0.20/0.54      ((~(member(A!13, union(A!13, singleton(A!13))) <=> (member(A!13, A!13) | member(A!13, singleton(A!13))))) | member(A!13, union(A!13, singleton(A!13))) | (~(member(A!13, A!13) | member(A!13, singleton(A!13))))),
% 0.20/0.54      inference(tautology,[status(thm)],[])).
% 0.20/0.54  tff(109,plain,
% 0.20/0.54      ((~(member(A!13, union(A!13, singleton(A!13))) <=> (member(A!13, A!13) | member(A!13, singleton(A!13))))) | member(A!13, union(A!13, singleton(A!13)))),
% 0.20/0.54      inference(unit_resolution,[status(thm)],[108, 107])).
% 0.20/0.54  tff(110,plain,
% 0.20/0.54      (member(A!13, union(A!13, singleton(A!13)))),
% 0.20/0.54      inference(unit_resolution,[status(thm)],[109, 86])).
% 0.20/0.54  tff(111,plain,
% 0.20/0.54      ((~(member(A!13, suc(A!13)) <=> member(A!13, union(A!13, singleton(A!13))))) | member(A!13, suc(A!13)) | (~member(A!13, union(A!13, singleton(A!13))))),
% 0.20/0.54      inference(tautology,[status(thm)],[])).
% 0.20/0.54  tff(112,plain,
% 0.20/0.54      ((~(member(A!13, suc(A!13)) <=> member(A!13, union(A!13, singleton(A!13))))) | member(A!13, suc(A!13))),
% 0.20/0.54      inference(unit_resolution,[status(thm)],[111, 110])).
% 0.20/0.54  tff(113,plain,
% 0.20/0.54      (member(A!13, suc(A!13))),
% 0.20/0.54      inference(unit_resolution,[status(thm)],[112, 77])).
% 0.20/0.54  tff(114,plain,
% 0.20/0.54      (((~![Y: $i] : ((~member(Y, suc(A!13))) | (~member(tptp_fun_X_0(sum(suc(A!13)), A!13), Y)))) | ((~member(A!13, suc(A!13))) | (~member(tptp_fun_X_0(sum(suc(A!13)), A!13), A!13)))) <=> ((~![Y: $i] : ((~member(Y, suc(A!13))) | (~member(tptp_fun_X_0(sum(suc(A!13)), A!13), Y)))) | (~member(A!13, suc(A!13))) | (~member(tptp_fun_X_0(sum(suc(A!13)), A!13), A!13)))),
% 0.20/0.54      inference(rewrite,[status(thm)],[])).
% 0.20/0.54  tff(115,plain,
% 0.20/0.54      ((~![Y: $i] : ((~member(Y, suc(A!13))) | (~member(tptp_fun_X_0(sum(suc(A!13)), A!13), Y)))) | ((~member(A!13, suc(A!13))) | (~member(tptp_fun_X_0(sum(suc(A!13)), A!13), A!13)))),
% 0.20/0.54      inference(quant_inst,[status(thm)],[])).
% 0.20/0.54  tff(116,plain,
% 0.20/0.54      ((~![Y: $i] : ((~member(Y, suc(A!13))) | (~member(tptp_fun_X_0(sum(suc(A!13)), A!13), Y)))) | (~member(A!13, suc(A!13))) | (~member(tptp_fun_X_0(sum(suc(A!13)), A!13), A!13))),
% 0.20/0.54      inference(modus_ponens,[status(thm)],[115, 114])).
% 0.20/0.54  tff(117,plain,
% 0.20/0.54      ($false),
% 0.20/0.54      inference(unit_resolution,[status(thm)],[116, 113, 73, 71])).
% 0.20/0.54  tff(118,plain,((~member(tptp_fun_X_0(sum(suc(A!13)), A!13), A!13)) | member(tptp_fun_X_0(sum(suc(A!13)), A!13), sum(suc(A!13)))), inference(lemma,lemma(discharge,[]))).
% 0.20/0.54  tff(119,plain,
% 0.20/0.54      ((~(subset(A!13, sum(suc(A!13))) | (~((~member(tptp_fun_X_0(sum(suc(A!13)), A!13), A!13)) | member(tptp_fun_X_0(sum(suc(A!13)), A!13), sum(suc(A!13))))))) | subset(A!13, sum(suc(A!13))) | (~((~member(tptp_fun_X_0(sum(suc(A!13)), A!13), A!13)) | member(tptp_fun_X_0(sum(suc(A!13)), A!13), sum(suc(A!13)))))),
% 0.20/0.54      inference(tautology,[status(thm)],[])).
% 0.20/0.54  tff(120,plain,
% 0.20/0.54      ((~(subset(A!13, sum(suc(A!13))) | (~((~member(tptp_fun_X_0(sum(suc(A!13)), A!13), A!13)) | member(tptp_fun_X_0(sum(suc(A!13)), A!13), sum(suc(A!13))))))) | subset(A!13, sum(suc(A!13)))),
% 0.20/0.54      inference(unit_resolution,[status(thm)],[119, 118])).
% 0.20/0.54  tff(121,plain,
% 0.20/0.54      (subset(A!13, sum(suc(A!13)))),
% 0.20/0.54      inference(unit_resolution,[status(thm)],[120, 43])).
% 0.20/0.54  tff(122,plain,
% 0.20/0.54      (^[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))))))),
% 0.20/0.54      inference(bind,[status(th)],[])).
% 0.20/0.54  tff(123,plain,
% 0.20/0.54      (![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)))))),
% 0.20/0.54      inference(quant_intro,[status(thm)],[122])).
% 0.20/0.54  tff(124,plain,
% 0.20/0.54      (^[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))))))),
% 0.20/0.54      inference(bind,[status(th)],[])).
% 0.20/0.54  tff(125,plain,
% 0.20/0.54      (![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)))))),
% 0.20/0.54      inference(quant_intro,[status(thm)],[124])).
% 0.20/0.54  tff(126,plain,
% 0.20/0.54      (![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)))),
% 0.20/0.54      inference(rewrite,[status(thm)],[])).
% 0.20/0.54  tff(127,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')).
% 0.20/0.54  tff(128,plain,
% 0.20/0.54      (![A: $i, B: $i] : (equal_set(A, B) <=> (subset(A, B) & subset(B, A)))),
% 0.20/0.54      inference(modus_ponens,[status(thm)],[127, 126])).
% 0.20/0.54  tff(129,plain,(
% 0.20/0.54      ![A: $i, B: $i] : (equal_set(A, B) <=> (subset(A, B) & subset(B, A)))),
% 0.20/0.54      inference(skolemize,[status(sab)],[128])).
% 0.20/0.54  tff(130,plain,
% 0.20/0.54      (![A: $i, B: $i] : (equal_set(A, B) <=> (~((~subset(A, B)) | (~subset(B, A)))))),
% 0.20/0.54      inference(modus_ponens,[status(thm)],[129, 125])).
% 0.20/0.54  tff(131,plain,
% 0.20/0.54      (![A: $i, B: $i] : (equal_set(A, B) <=> (~((~subset(A, B)) | (~subset(B, A)))))),
% 0.20/0.54      inference(modus_ponens,[status(thm)],[130, 123])).
% 0.20/0.54  tff(132,plain,
% 0.20/0.54      ((~![A: $i, B: $i] : (equal_set(A, B) <=> (~((~subset(A, B)) | (~subset(B, A)))))) | (equal_set(sum(suc(A!13)), A!13) <=> (~((~subset(sum(suc(A!13)), A!13)) | (~subset(A!13, sum(suc(A!13)))))))),
% 0.20/0.54      inference(quant_inst,[status(thm)],[])).
% 0.20/0.54  tff(133,plain,
% 0.20/0.54      (equal_set(sum(suc(A!13)), A!13) <=> (~((~subset(sum(suc(A!13)), A!13)) | (~subset(A!13, sum(suc(A!13))))))),
% 0.20/0.54      inference(unit_resolution,[status(thm)],[132, 131])).
% 0.20/0.54  tff(134,plain,
% 0.20/0.54      ((~![A: $i] : ((~member(A, on)) | equal_set(sum(suc(A)), A))) <=> (~![A: $i] : ((~member(A, on)) | equal_set(sum(suc(A)), A)))),
% 0.20/0.54      inference(rewrite,[status(thm)],[])).
% 0.20/0.54  tff(135,plain,
% 0.20/0.54      ((~![A: $i] : (member(A, on) => equal_set(sum(suc(A)), A))) <=> (~![A: $i] : ((~member(A, on)) | equal_set(sum(suc(A)), A)))),
% 0.20/0.54      inference(rewrite,[status(thm)],[])).
% 0.20/0.54  tff(136,axiom,(~![A: $i] : (member(A, on) => equal_set(sum(suc(A)), A))), file('/export/starexec/sandbox2/benchmark/theBenchmark.p','thV15')).
% 0.20/0.54  tff(137,plain,
% 0.20/0.54      (~![A: $i] : ((~member(A, on)) | equal_set(sum(suc(A)), A))),
% 0.20/0.54      inference(modus_ponens,[status(thm)],[136, 135])).
% 0.20/0.54  tff(138,plain,
% 0.20/0.54      (~![A: $i] : ((~member(A, on)) | equal_set(sum(suc(A)), A))),
% 0.20/0.54      inference(modus_ponens,[status(thm)],[137, 134])).
% 0.20/0.54  tff(139,plain,
% 0.20/0.54      (~![A: $i] : ((~member(A, on)) | equal_set(sum(suc(A)), A))),
% 0.20/0.54      inference(modus_ponens,[status(thm)],[138, 134])).
% 0.20/0.54  tff(140,plain,
% 0.20/0.54      (~![A: $i] : ((~member(A, on)) | equal_set(sum(suc(A)), A))),
% 0.20/0.54      inference(modus_ponens,[status(thm)],[139, 134])).
% 0.20/0.54  tff(141,plain,
% 0.20/0.54      (~![A: $i] : ((~member(A, on)) | equal_set(sum(suc(A)), A))),
% 0.20/0.54      inference(modus_ponens,[status(thm)],[140, 134])).
% 0.20/0.54  tff(142,plain,
% 0.20/0.54      (~![A: $i] : ((~member(A, on)) | equal_set(sum(suc(A)), A))),
% 0.20/0.54      inference(modus_ponens,[status(thm)],[141, 134])).
% 0.20/0.54  tff(143,plain,
% 0.20/0.54      (~![A: $i] : ((~member(A, on)) | equal_set(sum(suc(A)), A))),
% 0.20/0.54      inference(modus_ponens,[status(thm)],[142, 134])).
% 0.20/0.54  tff(144,plain,(
% 0.20/0.54      ~((~member(A!13, on)) | equal_set(sum(suc(A!13)), A!13))),
% 0.20/0.54      inference(skolemize,[status(sab)],[143])).
% 0.20/0.54  tff(145,plain,
% 0.20/0.54      (~equal_set(sum(suc(A!13)), A!13)),
% 0.20/0.54      inference(or_elim,[status(thm)],[144])).
% 0.20/0.54  tff(146,plain,
% 0.20/0.54      ((~(equal_set(sum(suc(A!13)), A!13) <=> (~((~subset(sum(suc(A!13)), A!13)) | (~subset(A!13, sum(suc(A!13)))))))) | equal_set(sum(suc(A!13)), A!13) | ((~subset(sum(suc(A!13)), A!13)) | (~subset(A!13, sum(suc(A!13)))))),
% 0.20/0.54      inference(tautology,[status(thm)],[])).
% 0.20/0.55  tff(147,plain,
% 0.20/0.55      ((~(equal_set(sum(suc(A!13)), A!13) <=> (~((~subset(sum(suc(A!13)), A!13)) | (~subset(A!13, sum(suc(A!13)))))))) | ((~subset(sum(suc(A!13)), A!13)) | (~subset(A!13, sum(suc(A!13)))))),
% 0.20/0.55      inference(unit_resolution,[status(thm)],[146, 145])).
% 0.20/0.55  tff(148,plain,
% 0.20/0.55      ((~subset(sum(suc(A!13)), A!13)) | (~subset(A!13, sum(suc(A!13))))),
% 0.20/0.55      inference(unit_resolution,[status(thm)],[147, 133])).
% 0.20/0.55  tff(149,plain,
% 0.20/0.55      ((~((~subset(sum(suc(A!13)), A!13)) | (~subset(A!13, sum(suc(A!13)))))) | (~subset(sum(suc(A!13)), A!13)) | (~subset(A!13, sum(suc(A!13))))),
% 0.20/0.55      inference(tautology,[status(thm)],[])).
% 0.20/0.55  tff(150,plain,
% 0.20/0.55      ((~subset(sum(suc(A!13)), A!13)) | (~subset(A!13, sum(suc(A!13))))),
% 0.20/0.55      inference(unit_resolution,[status(thm)],[149, 148])).
% 0.20/0.55  tff(151,plain,
% 0.20/0.55      (~subset(sum(suc(A!13)), A!13)),
% 0.20/0.55      inference(unit_resolution,[status(thm)],[150, 121])).
% 0.20/0.55  tff(152,assumption,((~((~subset(sum(suc(A!13)), A!13)) | ![X: $i] : ((~member(X, sum(suc(A!13)))) | member(X, A!13)))) | (~(subset(sum(suc(A!13)), A!13) | (~((~member(tptp_fun_X_0(A!13, sum(suc(A!13))), sum(suc(A!13)))) | member(tptp_fun_X_0(A!13, sum(suc(A!13))), A!13)))))), introduced(assumption)).
% 0.20/0.55  tff(153,plain,
% 0.20/0.55      ((~![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(sum(suc(A!13)), A!13)) | ![X: $i] : ((~member(X, sum(suc(A!13)))) | member(X, A!13)))) | (~(subset(sum(suc(A!13)), A!13) | (~((~member(tptp_fun_X_0(A!13, sum(suc(A!13))), sum(suc(A!13)))) | member(tptp_fun_X_0(A!13, sum(suc(A!13))), A!13)))))))),
% 0.20/0.55      inference(quant_inst,[status(thm)],[])).
% 0.20/0.55  tff(154,plain,
% 0.20/0.55      ($false),
% 0.20/0.55      inference(unit_resolution,[status(thm)],[153, 38, 152])).
% 0.20/0.55  tff(155,plain,(~((~((~subset(sum(suc(A!13)), A!13)) | ![X: $i] : ((~member(X, sum(suc(A!13)))) | member(X, A!13)))) | (~(subset(sum(suc(A!13)), A!13) | (~((~member(tptp_fun_X_0(A!13, sum(suc(A!13))), sum(suc(A!13)))) | member(tptp_fun_X_0(A!13, sum(suc(A!13))), A!13))))))), inference(lemma,lemma(discharge,[]))).
% 0.20/0.55  tff(156,plain,
% 0.20/0.55      (((~((~subset(sum(suc(A!13)), A!13)) | ![X: $i] : ((~member(X, sum(suc(A!13)))) | member(X, A!13)))) | (~(subset(sum(suc(A!13)), A!13) | (~((~member(tptp_fun_X_0(A!13, sum(suc(A!13))), sum(suc(A!13)))) | member(tptp_fun_X_0(A!13, sum(suc(A!13))), A!13)))))) | (subset(sum(suc(A!13)), A!13) | (~((~member(tptp_fun_X_0(A!13, sum(suc(A!13))), sum(suc(A!13)))) | member(tptp_fun_X_0(A!13, sum(suc(A!13))), A!13))))),
% 0.20/0.55      inference(tautology,[status(thm)],[])).
% 0.20/0.55  tff(157,plain,
% 0.20/0.55      (subset(sum(suc(A!13)), A!13) | (~((~member(tptp_fun_X_0(A!13, sum(suc(A!13))), sum(suc(A!13)))) | member(tptp_fun_X_0(A!13, sum(suc(A!13))), A!13)))),
% 0.20/0.55      inference(unit_resolution,[status(thm)],[156, 155])).
% 0.20/0.55  tff(158,plain,
% 0.20/0.55      ((~(subset(sum(suc(A!13)), A!13) | (~((~member(tptp_fun_X_0(A!13, sum(suc(A!13))), sum(suc(A!13)))) | member(tptp_fun_X_0(A!13, sum(suc(A!13))), A!13))))) | subset(sum(suc(A!13)), A!13) | (~((~member(tptp_fun_X_0(A!13, sum(suc(A!13))), sum(suc(A!13)))) | member(tptp_fun_X_0(A!13, sum(suc(A!13))), A!13)))),
% 0.20/0.55      inference(tautology,[status(thm)],[])).
% 0.20/0.55  tff(159,plain,
% 0.20/0.55      (subset(sum(suc(A!13)), A!13) | (~((~member(tptp_fun_X_0(A!13, sum(suc(A!13))), sum(suc(A!13)))) | member(tptp_fun_X_0(A!13, sum(suc(A!13))), A!13)))),
% 0.20/0.55      inference(unit_resolution,[status(thm)],[158, 157])).
% 0.20/0.55  tff(160,plain,
% 0.20/0.55      (~((~member(tptp_fun_X_0(A!13, sum(suc(A!13))), sum(suc(A!13)))) | member(tptp_fun_X_0(A!13, sum(suc(A!13))), A!13))),
% 0.20/0.55      inference(unit_resolution,[status(thm)],[159, 151])).
% 0.20/0.55  tff(161,plain,
% 0.20/0.55      (((~member(tptp_fun_X_0(A!13, sum(suc(A!13))), sum(suc(A!13)))) | member(tptp_fun_X_0(A!13, sum(suc(A!13))), A!13)) | member(tptp_fun_X_0(A!13, sum(suc(A!13))), sum(suc(A!13)))),
% 0.20/0.55      inference(tautology,[status(thm)],[])).
% 0.20/0.55  tff(162,plain,
% 0.20/0.55      (member(tptp_fun_X_0(A!13, sum(suc(A!13))), sum(suc(A!13)))),
% 0.20/0.55      inference(unit_resolution,[status(thm)],[161, 160])).
% 0.20/0.55  tff(163,assumption,((~((~member(tptp_fun_X_0(A!13, sum(suc(A!13))), sum(suc(A!13)))) | (~((~member(tptp_fun_Y_1(suc(A!13), tptp_fun_X_0(A!13, sum(suc(A!13)))), suc(A!13))) | (~member(tptp_fun_X_0(A!13, sum(suc(A!13))), tptp_fun_Y_1(suc(A!13), tptp_fun_X_0(A!13, sum(suc(A!13)))))))))) | (~(member(tptp_fun_X_0(A!13, sum(suc(A!13))), sum(suc(A!13))) | ![Y: $i] : ((~member(Y, suc(A!13))) | (~member(tptp_fun_X_0(A!13, sum(suc(A!13))), Y)))))), introduced(assumption)).
% 0.20/0.55  tff(164,plain,
% 0.20/0.55      ((~![X: $i, A: $i] : (~((~((~member(X, sum(A))) | (~((~member(tptp_fun_Y_1(A, X), A)) | (~member(X, tptp_fun_Y_1(A, X))))))) | (~(member(X, sum(A)) | ![Y: $i] : ((~member(Y, A)) | (~member(X, Y)))))))) | (~((~((~member(tptp_fun_X_0(A!13, sum(suc(A!13))), sum(suc(A!13)))) | (~((~member(tptp_fun_Y_1(suc(A!13), tptp_fun_X_0(A!13, sum(suc(A!13)))), suc(A!13))) | (~member(tptp_fun_X_0(A!13, sum(suc(A!13))), tptp_fun_Y_1(suc(A!13), tptp_fun_X_0(A!13, sum(suc(A!13)))))))))) | (~(member(tptp_fun_X_0(A!13, sum(suc(A!13))), sum(suc(A!13))) | ![Y: $i] : ((~member(Y, suc(A!13))) | (~member(tptp_fun_X_0(A!13, sum(suc(A!13))), Y)))))))),
% 0.20/0.55      inference(quant_inst,[status(thm)],[])).
% 0.20/0.55  tff(165,plain,
% 0.20/0.55      ($false),
% 0.20/0.55      inference(unit_resolution,[status(thm)],[164, 56, 163])).
% 0.20/0.55  tff(166,plain,(~((~((~member(tptp_fun_X_0(A!13, sum(suc(A!13))), sum(suc(A!13)))) | (~((~member(tptp_fun_Y_1(suc(A!13), tptp_fun_X_0(A!13, sum(suc(A!13)))), suc(A!13))) | (~member(tptp_fun_X_0(A!13, sum(suc(A!13))), tptp_fun_Y_1(suc(A!13), tptp_fun_X_0(A!13, sum(suc(A!13)))))))))) | (~(member(tptp_fun_X_0(A!13, sum(suc(A!13))), sum(suc(A!13))) | ![Y: $i] : ((~member(Y, suc(A!13))) | (~member(tptp_fun_X_0(A!13, sum(suc(A!13))), Y))))))), inference(lemma,lemma(discharge,[]))).
% 0.20/0.55  tff(167,plain,
% 0.20/0.55      (((~((~member(tptp_fun_X_0(A!13, sum(suc(A!13))), sum(suc(A!13)))) | (~((~member(tptp_fun_Y_1(suc(A!13), tptp_fun_X_0(A!13, sum(suc(A!13)))), suc(A!13))) | (~member(tptp_fun_X_0(A!13, sum(suc(A!13))), tptp_fun_Y_1(suc(A!13), tptp_fun_X_0(A!13, sum(suc(A!13)))))))))) | (~(member(tptp_fun_X_0(A!13, sum(suc(A!13))), sum(suc(A!13))) | ![Y: $i] : ((~member(Y, suc(A!13))) | (~member(tptp_fun_X_0(A!13, sum(suc(A!13))), Y)))))) | ((~member(tptp_fun_X_0(A!13, sum(suc(A!13))), sum(suc(A!13)))) | (~((~member(tptp_fun_Y_1(suc(A!13), tptp_fun_X_0(A!13, sum(suc(A!13)))), suc(A!13))) | (~member(tptp_fun_X_0(A!13, sum(suc(A!13))), tptp_fun_Y_1(suc(A!13), tptp_fun_X_0(A!13, sum(suc(A!13)))))))))),
% 0.20/0.55      inference(tautology,[status(thm)],[])).
% 0.20/0.55  tff(168,plain,
% 0.20/0.55      ((~member(tptp_fun_X_0(A!13, sum(suc(A!13))), sum(suc(A!13)))) | (~((~member(tptp_fun_Y_1(suc(A!13), tptp_fun_X_0(A!13, sum(suc(A!13)))), suc(A!13))) | (~member(tptp_fun_X_0(A!13, sum(suc(A!13))), tptp_fun_Y_1(suc(A!13), tptp_fun_X_0(A!13, sum(suc(A!13))))))))),
% 0.20/0.55      inference(unit_resolution,[status(thm)],[167, 166])).
% 0.20/0.55  tff(169,plain,
% 0.20/0.55      ((~((~member(tptp_fun_X_0(A!13, sum(suc(A!13))), sum(suc(A!13)))) | (~((~member(tptp_fun_Y_1(suc(A!13), tptp_fun_X_0(A!13, sum(suc(A!13)))), suc(A!13))) | (~member(tptp_fun_X_0(A!13, sum(suc(A!13))), tptp_fun_Y_1(suc(A!13), tptp_fun_X_0(A!13, sum(suc(A!13)))))))))) | (~member(tptp_fun_X_0(A!13, sum(suc(A!13))), sum(suc(A!13)))) | (~((~member(tptp_fun_Y_1(suc(A!13), tptp_fun_X_0(A!13, sum(suc(A!13)))), suc(A!13))) | (~member(tptp_fun_X_0(A!13, sum(suc(A!13))), tptp_fun_Y_1(suc(A!13), tptp_fun_X_0(A!13, sum(suc(A!13))))))))),
% 0.20/0.55      inference(tautology,[status(thm)],[])).
% 0.20/0.55  tff(170,plain,
% 0.20/0.55      ((~member(tptp_fun_X_0(A!13, sum(suc(A!13))), sum(suc(A!13)))) | (~((~member(tptp_fun_Y_1(suc(A!13), tptp_fun_X_0(A!13, sum(suc(A!13)))), suc(A!13))) | (~member(tptp_fun_X_0(A!13, sum(suc(A!13))), tptp_fun_Y_1(suc(A!13), tptp_fun_X_0(A!13, sum(suc(A!13))))))))),
% 0.20/0.55      inference(unit_resolution,[status(thm)],[169, 168])).
% 0.20/0.55  tff(171,plain,
% 0.20/0.55      (~((~member(tptp_fun_Y_1(suc(A!13), tptp_fun_X_0(A!13, sum(suc(A!13)))), suc(A!13))) | (~member(tptp_fun_X_0(A!13, sum(suc(A!13))), tptp_fun_Y_1(suc(A!13), tptp_fun_X_0(A!13, sum(suc(A!13)))))))),
% 0.20/0.55      inference(unit_resolution,[status(thm)],[170, 162])).
% 0.20/0.55  tff(172,plain,
% 0.20/0.55      (((~member(tptp_fun_Y_1(suc(A!13), tptp_fun_X_0(A!13, sum(suc(A!13)))), suc(A!13))) | (~member(tptp_fun_X_0(A!13, sum(suc(A!13))), tptp_fun_Y_1(suc(A!13), tptp_fun_X_0(A!13, sum(suc(A!13))))))) | member(tptp_fun_Y_1(suc(A!13), tptp_fun_X_0(A!13, sum(suc(A!13)))), suc(A!13))),
% 0.20/0.55      inference(tautology,[status(thm)],[])).
% 0.20/0.55  tff(173,plain,
% 0.20/0.55      (member(tptp_fun_Y_1(suc(A!13), tptp_fun_X_0(A!13, sum(suc(A!13)))), suc(A!13))),
% 0.20/0.55      inference(unit_resolution,[status(thm)],[172, 171])).
% 0.20/0.55  tff(174,plain,
% 0.20/0.55      ((~(member(tptp_fun_Y_1(suc(A!13), tptp_fun_X_0(A!13, sum(suc(A!13)))), suc(A!13)) <=> member(tptp_fun_Y_1(suc(A!13), tptp_fun_X_0(A!13, sum(suc(A!13)))), union(A!13, singleton(A!13))))) | (~member(tptp_fun_Y_1(suc(A!13), tptp_fun_X_0(A!13, sum(suc(A!13)))), suc(A!13))) | member(tptp_fun_Y_1(suc(A!13), tptp_fun_X_0(A!13, sum(suc(A!13)))), union(A!13, singleton(A!13)))),
% 0.20/0.55      inference(tautology,[status(thm)],[])).
% 0.20/0.55  tff(175,plain,
% 0.20/0.55      ((~(member(tptp_fun_Y_1(suc(A!13), tptp_fun_X_0(A!13, sum(suc(A!13)))), suc(A!13)) <=> member(tptp_fun_Y_1(suc(A!13), tptp_fun_X_0(A!13, sum(suc(A!13)))), union(A!13, singleton(A!13))))) | member(tptp_fun_Y_1(suc(A!13), tptp_fun_X_0(A!13, sum(suc(A!13)))), union(A!13, singleton(A!13)))),
% 0.20/0.55      inference(unit_resolution,[status(thm)],[174, 173])).
% 0.20/0.55  tff(176,plain,
% 0.20/0.55      (member(tptp_fun_Y_1(suc(A!13), tptp_fun_X_0(A!13, sum(suc(A!13)))), union(A!13, singleton(A!13)))),
% 0.20/0.55      inference(unit_resolution,[status(thm)],[175, 21])).
% 0.20/0.55  tff(177,plain,
% 0.20/0.55      ((~(member(tptp_fun_Y_1(suc(A!13), tptp_fun_X_0(A!13, sum(suc(A!13)))), union(A!13, singleton(A!13))) <=> (member(tptp_fun_Y_1(suc(A!13), tptp_fun_X_0(A!13, sum(suc(A!13)))), singleton(A!13)) | member(tptp_fun_Y_1(suc(A!13), tptp_fun_X_0(A!13, sum(suc(A!13)))), A!13)))) | (~member(tptp_fun_Y_1(suc(A!13), tptp_fun_X_0(A!13, sum(suc(A!13)))), union(A!13, singleton(A!13)))) | (member(tptp_fun_Y_1(suc(A!13), tptp_fun_X_0(A!13, sum(suc(A!13)))), singleton(A!13)) | member(tptp_fun_Y_1(suc(A!13), tptp_fun_X_0(A!13, sum(suc(A!13)))), A!13))),
% 0.20/0.55      inference(tautology,[status(thm)],[])).
% 0.20/0.55  tff(178,plain,
% 0.20/0.55      ((~(member(tptp_fun_Y_1(suc(A!13), tptp_fun_X_0(A!13, sum(suc(A!13)))), union(A!13, singleton(A!13))) <=> (member(tptp_fun_Y_1(suc(A!13), tptp_fun_X_0(A!13, sum(suc(A!13)))), singleton(A!13)) | member(tptp_fun_Y_1(suc(A!13), tptp_fun_X_0(A!13, sum(suc(A!13)))), A!13)))) | (member(tptp_fun_Y_1(suc(A!13), tptp_fun_X_0(A!13, sum(suc(A!13)))), singleton(A!13)) | member(tptp_fun_Y_1(suc(A!13), tptp_fun_X_0(A!13, sum(suc(A!13)))), A!13))),
% 0.20/0.55      inference(unit_resolution,[status(thm)],[177, 176])).
% 0.20/0.55  tff(179,plain,
% 0.20/0.55      (member(tptp_fun_Y_1(suc(A!13), tptp_fun_X_0(A!13, sum(suc(A!13)))), singleton(A!13)) | member(tptp_fun_Y_1(suc(A!13), tptp_fun_X_0(A!13, sum(suc(A!13)))), A!13)),
% 0.20/0.55      inference(unit_resolution,[status(thm)],[178, 12])).
% 0.20/0.55  tff(180,plain,
% 0.20/0.55      (((~member(tptp_fun_X_0(A!13, sum(suc(A!13))), sum(suc(A!13)))) | member(tptp_fun_X_0(A!13, sum(suc(A!13))), A!13)) | (~member(tptp_fun_X_0(A!13, sum(suc(A!13))), A!13))),
% 0.20/0.55      inference(tautology,[status(thm)],[])).
% 0.20/0.55  tff(181,plain,
% 0.20/0.55      (~member(tptp_fun_X_0(A!13, sum(suc(A!13))), A!13)),
% 0.20/0.55      inference(unit_resolution,[status(thm)],[180, 160])).
% 0.20/0.55  tff(182,plain,
% 0.20/0.55      (((~member(tptp_fun_Y_1(suc(A!13), tptp_fun_X_0(A!13, sum(suc(A!13)))), suc(A!13))) | (~member(tptp_fun_X_0(A!13, sum(suc(A!13))), tptp_fun_Y_1(suc(A!13), tptp_fun_X_0(A!13, sum(suc(A!13))))))) | member(tptp_fun_X_0(A!13, sum(suc(A!13))), tptp_fun_Y_1(suc(A!13), tptp_fun_X_0(A!13, sum(suc(A!13)))))),
% 0.20/0.55      inference(tautology,[status(thm)],[])).
% 0.20/0.55  tff(183,plain,
% 0.20/0.55      (member(tptp_fun_X_0(A!13, sum(suc(A!13))), tptp_fun_Y_1(suc(A!13), tptp_fun_X_0(A!13, sum(suc(A!13)))))),
% 0.20/0.55      inference(unit_resolution,[status(thm)],[182, 171])).
% 0.20/0.55  tff(184,assumption,(tptp_fun_Y_1(suc(A!13), tptp_fun_X_0(A!13, sum(suc(A!13)))) = A!13), introduced(assumption)).
% 0.20/0.55  tff(185,plain,
% 0.20/0.55      (member(tptp_fun_X_0(A!13, sum(suc(A!13))), tptp_fun_Y_1(suc(A!13), tptp_fun_X_0(A!13, sum(suc(A!13))))) <=> member(tptp_fun_X_0(A!13, sum(suc(A!13))), A!13)),
% 0.20/0.55      inference(monotonicity,[status(thm)],[184])).
% 0.20/0.55  tff(186,plain,
% 0.20/0.55      (member(tptp_fun_X_0(A!13, sum(suc(A!13))), A!13) <=> member(tptp_fun_X_0(A!13, sum(suc(A!13))), tptp_fun_Y_1(suc(A!13), tptp_fun_X_0(A!13, sum(suc(A!13)))))),
% 0.20/0.55      inference(symmetry,[status(thm)],[185])).
% 0.20/0.55  tff(187,plain,
% 0.20/0.55      ((~member(tptp_fun_X_0(A!13, sum(suc(A!13))), A!13)) <=> (~member(tptp_fun_X_0(A!13, sum(suc(A!13))), tptp_fun_Y_1(suc(A!13), tptp_fun_X_0(A!13, sum(suc(A!13))))))),
% 0.20/0.55      inference(monotonicity,[status(thm)],[186])).
% 0.20/0.55  tff(188,assumption,(~member(tptp_fun_X_0(A!13, sum(suc(A!13))), A!13)), introduced(assumption)).
% 0.20/0.55  tff(189,plain,
% 0.20/0.55      (~member(tptp_fun_X_0(A!13, sum(suc(A!13))), tptp_fun_Y_1(suc(A!13), tptp_fun_X_0(A!13, sum(suc(A!13)))))),
% 0.20/0.55      inference(modus_ponens,[status(thm)],[188, 187])).
% 0.20/0.55  tff(190,assumption,(member(tptp_fun_X_0(A!13, sum(suc(A!13))), tptp_fun_Y_1(suc(A!13), tptp_fun_X_0(A!13, sum(suc(A!13)))))), introduced(assumption)).
% 0.20/0.55  tff(191,plain,
% 0.20/0.55      ($false),
% 0.20/0.55      inference(unit_resolution,[status(thm)],[190, 189])).
% 0.20/0.55  tff(192,plain,((~(tptp_fun_Y_1(suc(A!13), tptp_fun_X_0(A!13, sum(suc(A!13)))) = A!13)) | (~member(tptp_fun_X_0(A!13, sum(suc(A!13))), tptp_fun_Y_1(suc(A!13), tptp_fun_X_0(A!13, sum(suc(A!13)))))) | member(tptp_fun_X_0(A!13, sum(suc(A!13))), A!13)), inference(lemma,lemma(discharge,[]))).
% 0.20/0.55  tff(193,plain,
% 0.20/0.55      (~(tptp_fun_Y_1(suc(A!13), tptp_fun_X_0(A!13, sum(suc(A!13)))) = A!13)),
% 0.20/0.55      inference(unit_resolution,[status(thm)],[192, 183, 181])).
% 0.20/0.55  tff(194,assumption,(~(member(tptp_fun_Y_1(suc(A!13), tptp_fun_X_0(A!13, sum(suc(A!13)))), singleton(A!13)) <=> (tptp_fun_Y_1(suc(A!13), tptp_fun_X_0(A!13, sum(suc(A!13)))) = A!13))), introduced(assumption)).
% 0.20/0.55  tff(195,plain,
% 0.20/0.55      ((~![X: $i, A: $i] : (member(X, singleton(A)) <=> (X = A))) | (member(tptp_fun_Y_1(suc(A!13), tptp_fun_X_0(A!13, sum(suc(A!13)))), singleton(A!13)) <=> (tptp_fun_Y_1(suc(A!13), tptp_fun_X_0(A!13, sum(suc(A!13)))) = A!13))),
% 0.20/0.55      inference(quant_inst,[status(thm)],[])).
% 0.20/0.55  tff(196,plain,
% 0.20/0.55      ($false),
% 0.20/0.55      inference(unit_resolution,[status(thm)],[195, 94, 194])).
% 0.20/0.55  tff(197,plain,(member(tptp_fun_Y_1(suc(A!13), tptp_fun_X_0(A!13, sum(suc(A!13)))), singleton(A!13)) <=> (tptp_fun_Y_1(suc(A!13), tptp_fun_X_0(A!13, sum(suc(A!13)))) = A!13)), inference(lemma,lemma(discharge,[]))).
% 0.20/0.55  tff(198,plain,
% 0.20/0.55      ((~(member(tptp_fun_Y_1(suc(A!13), tptp_fun_X_0(A!13, sum(suc(A!13)))), singleton(A!13)) <=> (tptp_fun_Y_1(suc(A!13), tptp_fun_X_0(A!13, sum(suc(A!13)))) = A!13))) | (~member(tptp_fun_Y_1(suc(A!13), tptp_fun_X_0(A!13, sum(suc(A!13)))), singleton(A!13))) | (tptp_fun_Y_1(suc(A!13), tptp_fun_X_0(A!13, sum(suc(A!13)))) = A!13)),
% 0.20/0.55      inference(tautology,[status(thm)],[])).
% 0.20/0.55  tff(199,plain,
% 0.20/0.55      ((~member(tptp_fun_Y_1(suc(A!13), tptp_fun_X_0(A!13, sum(suc(A!13)))), singleton(A!13))) | (tptp_fun_Y_1(suc(A!13), tptp_fun_X_0(A!13, sum(suc(A!13)))) = A!13)),
% 0.20/0.55      inference(unit_resolution,[status(thm)],[198, 197])).
% 0.20/0.55  tff(200,plain,
% 0.20/0.55      (~member(tptp_fun_Y_1(suc(A!13), tptp_fun_X_0(A!13, sum(suc(A!13)))), singleton(A!13))),
% 0.20/0.55      inference(unit_resolution,[status(thm)],[199, 193])).
% 0.20/0.55  tff(201,plain,
% 0.20/0.55      ((~(member(tptp_fun_Y_1(suc(A!13), tptp_fun_X_0(A!13, sum(suc(A!13)))), singleton(A!13)) | member(tptp_fun_Y_1(suc(A!13), tptp_fun_X_0(A!13, sum(suc(A!13)))), A!13))) | member(tptp_fun_Y_1(suc(A!13), tptp_fun_X_0(A!13, sum(suc(A!13)))), singleton(A!13)) | member(tptp_fun_Y_1(suc(A!13), tptp_fun_X_0(A!13, sum(suc(A!13)))), A!13)),
% 0.20/0.55      inference(tautology,[status(thm)],[])).
% 0.20/0.55  tff(202,plain,
% 0.20/0.55      ((~(member(tptp_fun_Y_1(suc(A!13), tptp_fun_X_0(A!13, sum(suc(A!13)))), singleton(A!13)) | member(tptp_fun_Y_1(suc(A!13), tptp_fun_X_0(A!13, sum(suc(A!13)))), A!13))) | member(tptp_fun_Y_1(suc(A!13), tptp_fun_X_0(A!13, sum(suc(A!13)))), A!13)),
% 0.20/0.55      inference(unit_resolution,[status(thm)],[201, 200])).
% 0.20/0.55  tff(203,plain,
% 0.20/0.55      (member(tptp_fun_Y_1(suc(A!13), tptp_fun_X_0(A!13, sum(suc(A!13)))), A!13)),
% 0.20/0.55      inference(unit_resolution,[status(thm)],[202, 179])).
% 0.20/0.55  tff(204,assumption,(![X: $i] : ((~member(X, tptp_fun_Y_1(suc(A!13), tptp_fun_X_0(A!13, sum(suc(A!13)))))) | member(X, A!13))), introduced(assumption)).
% 0.20/0.55  tff(205,plain,
% 0.20/0.55      (((~![X: $i] : ((~member(X, tptp_fun_Y_1(suc(A!13), tptp_fun_X_0(A!13, sum(suc(A!13)))))) | member(X, A!13))) | ((~member(tptp_fun_X_0(A!13, sum(suc(A!13))), tptp_fun_Y_1(suc(A!13), tptp_fun_X_0(A!13, sum(suc(A!13)))))) | member(tptp_fun_X_0(A!13, sum(suc(A!13))), A!13))) <=> ((~![X: $i] : ((~member(X, tptp_fun_Y_1(suc(A!13), tptp_fun_X_0(A!13, sum(suc(A!13)))))) | member(X, A!13))) | (~member(tptp_fun_X_0(A!13, sum(suc(A!13))), tptp_fun_Y_1(suc(A!13), tptp_fun_X_0(A!13, sum(suc(A!13)))))) | member(tptp_fun_X_0(A!13, sum(suc(A!13))), A!13))),
% 0.20/0.55      inference(rewrite,[status(thm)],[])).
% 0.20/0.55  tff(206,plain,
% 0.20/0.55      ((~![X: $i] : ((~member(X, tptp_fun_Y_1(suc(A!13), tptp_fun_X_0(A!13, sum(suc(A!13)))))) | member(X, A!13))) | ((~member(tptp_fun_X_0(A!13, sum(suc(A!13))), tptp_fun_Y_1(suc(A!13), tptp_fun_X_0(A!13, sum(suc(A!13)))))) | member(tptp_fun_X_0(A!13, sum(suc(A!13))), A!13))),
% 0.20/0.55      inference(quant_inst,[status(thm)],[])).
% 0.20/0.55  tff(207,plain,
% 0.20/0.55      ((~![X: $i] : ((~member(X, tptp_fun_Y_1(suc(A!13), tptp_fun_X_0(A!13, sum(suc(A!13)))))) | member(X, A!13))) | (~member(tptp_fun_X_0(A!13, sum(suc(A!13))), tptp_fun_Y_1(suc(A!13), tptp_fun_X_0(A!13, sum(suc(A!13)))))) | member(tptp_fun_X_0(A!13, sum(suc(A!13))), A!13)),
% 0.20/0.55      inference(modus_ponens,[status(thm)],[206, 205])).
% 0.20/0.55  tff(208,plain,
% 0.20/0.55      ($false),
% 0.20/0.55      inference(unit_resolution,[status(thm)],[207, 188, 190, 204])).
% 0.20/0.55  tff(209,plain,((~![X: $i] : ((~member(X, tptp_fun_Y_1(suc(A!13), tptp_fun_X_0(A!13, sum(suc(A!13)))))) | member(X, A!13))) | member(tptp_fun_X_0(A!13, sum(suc(A!13))), A!13) | (~member(tptp_fun_X_0(A!13, sum(suc(A!13))), tptp_fun_Y_1(suc(A!13), tptp_fun_X_0(A!13, sum(suc(A!13))))))), inference(lemma,lemma(discharge,[]))).
% 0.20/0.55  tff(210,plain,
% 0.20/0.55      (~![X: $i] : ((~member(X, tptp_fun_Y_1(suc(A!13), tptp_fun_X_0(A!13, sum(suc(A!13)))))) | member(X, A!13))),
% 0.20/0.55      inference(unit_resolution,[status(thm)],[209, 183, 181])).
% 0.20/0.55  tff(211,assumption,((~((~subset(tptp_fun_Y_1(suc(A!13), tptp_fun_X_0(A!13, sum(suc(A!13)))), A!13)) | ![X: $i] : ((~member(X, tptp_fun_Y_1(suc(A!13), tptp_fun_X_0(A!13, sum(suc(A!13)))))) | member(X, A!13)))) | (~(subset(tptp_fun_Y_1(suc(A!13), tptp_fun_X_0(A!13, sum(suc(A!13)))), A!13) | (~((~member(tptp_fun_X_0(A!13, tptp_fun_Y_1(suc(A!13), tptp_fun_X_0(A!13, sum(suc(A!13))))), tptp_fun_Y_1(suc(A!13), tptp_fun_X_0(A!13, sum(suc(A!13)))))) | member(tptp_fun_X_0(A!13, tptp_fun_Y_1(suc(A!13), tptp_fun_X_0(A!13, sum(suc(A!13))))), A!13)))))), introduced(assumption)).
% 0.20/0.55  tff(212,plain,
% 0.20/0.55      ((~![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(tptp_fun_Y_1(suc(A!13), tptp_fun_X_0(A!13, sum(suc(A!13)))), A!13)) | ![X: $i] : ((~member(X, tptp_fun_Y_1(suc(A!13), tptp_fun_X_0(A!13, sum(suc(A!13)))))) | member(X, A!13)))) | (~(subset(tptp_fun_Y_1(suc(A!13), tptp_fun_X_0(A!13, sum(suc(A!13)))), A!13) | (~((~member(tptp_fun_X_0(A!13, tptp_fun_Y_1(suc(A!13), tptp_fun_X_0(A!13, sum(suc(A!13))))), tptp_fun_Y_1(suc(A!13), tptp_fun_X_0(A!13, sum(suc(A!13)))))) | member(tptp_fun_X_0(A!13, tptp_fun_Y_1(suc(A!13), tptp_fun_X_0(A!13, sum(suc(A!13))))), A!13)))))))),
% 0.20/0.55      inference(quant_inst,[status(thm)],[])).
% 0.20/0.55  tff(213,plain,
% 0.20/0.55      ($false),
% 0.20/0.55      inference(unit_resolution,[status(thm)],[212, 38, 211])).
% 0.20/0.55  tff(214,plain,(~((~((~subset(tptp_fun_Y_1(suc(A!13), tptp_fun_X_0(A!13, sum(suc(A!13)))), A!13)) | ![X: $i] : ((~member(X, tptp_fun_Y_1(suc(A!13), tptp_fun_X_0(A!13, sum(suc(A!13)))))) | member(X, A!13)))) | (~(subset(tptp_fun_Y_1(suc(A!13), tptp_fun_X_0(A!13, sum(suc(A!13)))), A!13) | (~((~member(tptp_fun_X_0(A!13, tptp_fun_Y_1(suc(A!13), tptp_fun_X_0(A!13, sum(suc(A!13))))), tptp_fun_Y_1(suc(A!13), tptp_fun_X_0(A!13, sum(suc(A!13)))))) | member(tptp_fun_X_0(A!13, tptp_fun_Y_1(suc(A!13), tptp_fun_X_0(A!13, sum(suc(A!13))))), A!13))))))), inference(lemma,lemma(discharge,[]))).
% 0.20/0.55  tff(215,plain,
% 0.20/0.55      (((~((~subset(tptp_fun_Y_1(suc(A!13), tptp_fun_X_0(A!13, sum(suc(A!13)))), A!13)) | ![X: $i] : ((~member(X, tptp_fun_Y_1(suc(A!13), tptp_fun_X_0(A!13, sum(suc(A!13)))))) | member(X, A!13)))) | (~(subset(tptp_fun_Y_1(suc(A!13), tptp_fun_X_0(A!13, sum(suc(A!13)))), A!13) | (~((~member(tptp_fun_X_0(A!13, tptp_fun_Y_1(suc(A!13), tptp_fun_X_0(A!13, sum(suc(A!13))))), tptp_fun_Y_1(suc(A!13), tptp_fun_X_0(A!13, sum(suc(A!13)))))) | member(tptp_fun_X_0(A!13, tptp_fun_Y_1(suc(A!13), tptp_fun_X_0(A!13, sum(suc(A!13))))), A!13)))))) | ((~subset(tptp_fun_Y_1(suc(A!13), tptp_fun_X_0(A!13, sum(suc(A!13)))), A!13)) | ![X: $i] : ((~member(X, tptp_fun_Y_1(suc(A!13), tptp_fun_X_0(A!13, sum(suc(A!13)))))) | member(X, A!13)))),
% 0.20/0.55      inference(tautology,[status(thm)],[])).
% 0.20/0.55  tff(216,plain,
% 0.20/0.55      ((~subset(tptp_fun_Y_1(suc(A!13), tptp_fun_X_0(A!13, sum(suc(A!13)))), A!13)) | ![X: $i] : ((~member(X, tptp_fun_Y_1(suc(A!13), tptp_fun_X_0(A!13, sum(suc(A!13)))))) | member(X, A!13))),
% 0.20/0.55      inference(unit_resolution,[status(thm)],[215, 214])).
% 0.20/0.55  tff(217,plain,
% 0.20/0.55      ((~((~subset(tptp_fun_Y_1(suc(A!13), tptp_fun_X_0(A!13, sum(suc(A!13)))), A!13)) | ![X: $i] : ((~member(X, tptp_fun_Y_1(suc(A!13), tptp_fun_X_0(A!13, sum(suc(A!13)))))) | member(X, A!13)))) | (~subset(tptp_fun_Y_1(suc(A!13), tptp_fun_X_0(A!13, sum(suc(A!13)))), A!13)) | ![X: $i] : ((~member(X, tptp_fun_Y_1(suc(A!13), tptp_fun_X_0(A!13, sum(suc(A!13)))))) | member(X, A!13))),
% 0.20/0.55      inference(tautology,[status(thm)],[])).
% 0.20/0.55  tff(218,plain,
% 0.20/0.55      ((~subset(tptp_fun_Y_1(suc(A!13), tptp_fun_X_0(A!13, sum(suc(A!13)))), A!13)) | ![X: $i] : ((~member(X, tptp_fun_Y_1(suc(A!13), tptp_fun_X_0(A!13, sum(suc(A!13)))))) | member(X, A!13))),
% 0.20/0.55      inference(unit_resolution,[status(thm)],[217, 216])).
% 0.20/0.55  tff(219,plain,
% 0.20/0.55      (~subset(tptp_fun_Y_1(suc(A!13), tptp_fun_X_0(A!13, sum(suc(A!13)))), A!13)),
% 0.20/0.55      inference(unit_resolution,[status(thm)],[218, 210])).
% 0.20/0.55  tff(220,plain,
% 0.20/0.55      (^[A: $i] : rewrite((~((~((~member(A, on)) | (~((~set(A)) | (~strict_well_order(member_predicate, A)) | (~![X: $i] : ((~member(X, A)) | subset(X, A))))))) | (~(member(A, on) | (~set(A)) | (~strict_well_order(member_predicate, A)) | (~((~member(tptp_fun_X_3(A), A)) | subset(tptp_fun_X_3(A), A))))))) <=> (~((~(member(A, on) | (~set(A)) | (~strict_well_order(member_predicate, A)) | (~((~member(tptp_fun_X_3(A), A)) | subset(tptp_fun_X_3(A), A))))) | (~((~member(A, on)) | (~((~set(A)) | (~strict_well_order(member_predicate, A)) | (~![X: $i] : ((~member(X, A)) | subset(X, A))))))))))),
% 0.20/0.55      inference(bind,[status(th)],[])).
% 0.20/0.55  tff(221,plain,
% 0.20/0.55      (![A: $i] : (~((~((~member(A, on)) | (~((~set(A)) | (~strict_well_order(member_predicate, A)) | (~![X: $i] : ((~member(X, A)) | subset(X, A))))))) | (~(member(A, on) | (~set(A)) | (~strict_well_order(member_predicate, A)) | (~((~member(tptp_fun_X_3(A), A)) | subset(tptp_fun_X_3(A), A))))))) <=> ![A: $i] : (~((~(member(A, on) | (~set(A)) | (~strict_well_order(member_predicate, A)) | (~((~member(tptp_fun_X_3(A), A)) | subset(tptp_fun_X_3(A), A))))) | (~((~member(A, on)) | (~((~set(A)) | (~strict_well_order(member_predicate, A)) | (~![X: $i] : ((~member(X, A)) | subset(X, A)))))))))),
% 0.20/0.55      inference(quant_intro,[status(thm)],[220])).
% 0.20/0.55  tff(222,plain,
% 0.20/0.55      (^[A: $i] : refl((~((~((~member(A, on)) | (~((~set(A)) | (~strict_well_order(member_predicate, A)) | (~![X: $i] : ((~member(X, A)) | subset(X, A))))))) | (~(member(A, on) | (~set(A)) | (~strict_well_order(member_predicate, A)) | (~((~member(tptp_fun_X_3(A), A)) | subset(tptp_fun_X_3(A), A))))))) <=> (~((~((~member(A, on)) | (~((~set(A)) | (~strict_well_order(member_predicate, A)) | (~![X: $i] : ((~member(X, A)) | subset(X, A))))))) | (~(member(A, on) | (~set(A)) | (~strict_well_order(member_predicate, A)) | (~((~member(tptp_fun_X_3(A), A)) | subset(tptp_fun_X_3(A), A))))))))),
% 0.20/0.56      inference(bind,[status(th)],[])).
% 0.20/0.56  tff(223,plain,
% 0.20/0.56      (![A: $i] : (~((~((~member(A, on)) | (~((~set(A)) | (~strict_well_order(member_predicate, A)) | (~![X: $i] : ((~member(X, A)) | subset(X, A))))))) | (~(member(A, on) | (~set(A)) | (~strict_well_order(member_predicate, A)) | (~((~member(tptp_fun_X_3(A), A)) | subset(tptp_fun_X_3(A), A))))))) <=> ![A: $i] : (~((~((~member(A, on)) | (~((~set(A)) | (~strict_well_order(member_predicate, A)) | (~![X: $i] : ((~member(X, A)) | subset(X, A))))))) | (~(member(A, on) | (~set(A)) | (~strict_well_order(member_predicate, A)) | (~((~member(tptp_fun_X_3(A), A)) | subset(tptp_fun_X_3(A), A)))))))),
% 0.20/0.56      inference(quant_intro,[status(thm)],[222])).
% 0.20/0.56  tff(224,plain,
% 0.20/0.56      (^[A: $i] : rewrite((~((~((~member(A, on)) | (~((~set(A)) | (~strict_well_order(member_predicate, A)) | (~![X: $i] : ((~member(X, A)) | subset(X, A))))))) | (~(member(A, on) | (~set(A)) | (~strict_well_order(member_predicate, A)) | (~((~member(tptp_fun_X_3(A), A)) | subset(tptp_fun_X_3(A), A))))))) <=> (~((~((~member(A, on)) | (~((~set(A)) | (~strict_well_order(member_predicate, A)) | (~![X: $i] : ((~member(X, A)) | subset(X, A))))))) | (~(member(A, on) | (~set(A)) | (~strict_well_order(member_predicate, A)) | (~((~member(tptp_fun_X_3(A), A)) | subset(tptp_fun_X_3(A), A))))))))),
% 0.20/0.56      inference(bind,[status(th)],[])).
% 0.20/0.56  tff(225,plain,
% 0.20/0.56      (![A: $i] : (~((~((~member(A, on)) | (~((~set(A)) | (~strict_well_order(member_predicate, A)) | (~![X: $i] : ((~member(X, A)) | subset(X, A))))))) | (~(member(A, on) | (~set(A)) | (~strict_well_order(member_predicate, A)) | (~((~member(tptp_fun_X_3(A), A)) | subset(tptp_fun_X_3(A), A))))))) <=> ![A: $i] : (~((~((~member(A, on)) | (~((~set(A)) | (~strict_well_order(member_predicate, A)) | (~![X: $i] : ((~member(X, A)) | subset(X, A))))))) | (~(member(A, on) | (~set(A)) | (~strict_well_order(member_predicate, A)) | (~((~member(tptp_fun_X_3(A), A)) | subset(tptp_fun_X_3(A), A)))))))),
% 0.20/0.56      inference(quant_intro,[status(thm)],[224])).
% 0.20/0.56  tff(226,plain,
% 0.20/0.56      (![A: $i] : (~((~((~member(A, on)) | (~((~set(A)) | (~strict_well_order(member_predicate, A)) | (~![X: $i] : ((~member(X, A)) | subset(X, A))))))) | (~(member(A, on) | (~set(A)) | (~strict_well_order(member_predicate, A)) | (~((~member(tptp_fun_X_3(A), A)) | subset(tptp_fun_X_3(A), A))))))) <=> ![A: $i] : (~((~((~member(A, on)) | (~((~set(A)) | (~strict_well_order(member_predicate, A)) | (~![X: $i] : ((~member(X, A)) | subset(X, A))))))) | (~(member(A, on) | (~set(A)) | (~strict_well_order(member_predicate, A)) | (~((~member(tptp_fun_X_3(A), A)) | subset(tptp_fun_X_3(A), A)))))))),
% 0.20/0.56      inference(transitivity,[status(thm)],[225, 223])).
% 0.20/0.56  tff(227,plain,
% 0.20/0.56      (^[A: $i] : trans(monotonicity(rewrite(((~member(A, on)) | (set(A) & strict_well_order(member_predicate, A) & ![X: $i] : ((~member(X, A)) | subset(X, A)))) <=> ((~member(A, on)) | (~((~set(A)) | (~strict_well_order(member_predicate, A)) | (~![X: $i] : ((~member(X, A)) | subset(X, A))))))), rewrite((member(A, on) | (~set(A)) | (~strict_well_order(member_predicate, A)) | (~((~member(tptp_fun_X_3(A), A)) | subset(tptp_fun_X_3(A), A)))) <=> (member(A, on) | (~set(A)) | (~strict_well_order(member_predicate, A)) | (~((~member(tptp_fun_X_3(A), A)) | subset(tptp_fun_X_3(A), A))))), ((((~member(A, on)) | (set(A) & strict_well_order(member_predicate, A) & ![X: $i] : ((~member(X, A)) | subset(X, A)))) & (member(A, on) | (~set(A)) | (~strict_well_order(member_predicate, A)) | (~((~member(tptp_fun_X_3(A), A)) | subset(tptp_fun_X_3(A), A))))) <=> (((~member(A, on)) | (~((~set(A)) | (~strict_well_order(member_predicate, A)) | (~![X: $i] : ((~member(X, A)) | subset(X, A)))))) & (member(A, on) | (~set(A)) | (~strict_well_order(member_predicate, A)) | (~((~member(tptp_fun_X_3(A), A)) | subset(tptp_fun_X_3(A), A))))))), rewrite((((~member(A, on)) | (~((~set(A)) | (~strict_well_order(member_predicate, A)) | (~![X: $i] : ((~member(X, A)) | subset(X, A)))))) & (member(A, on) | (~set(A)) | (~strict_well_order(member_predicate, A)) | (~((~member(tptp_fun_X_3(A), A)) | subset(tptp_fun_X_3(A), A))))) <=> (~((~((~member(A, on)) | (~((~set(A)) | (~strict_well_order(member_predicate, A)) | (~![X: $i] : ((~member(X, A)) | subset(X, A))))))) | (~(member(A, on) | (~set(A)) | (~strict_well_order(member_predicate, A)) | (~((~member(tptp_fun_X_3(A), A)) | subset(tptp_fun_X_3(A), A)))))))), ((((~member(A, on)) | (set(A) & strict_well_order(member_predicate, A) & ![X: $i] : ((~member(X, A)) | subset(X, A)))) & (member(A, on) | (~set(A)) | (~strict_well_order(member_predicate, A)) | (~((~member(tptp_fun_X_3(A), A)) | subset(tptp_fun_X_3(A), A))))) <=> (~((~((~member(A, on)) | (~((~set(A)) | (~strict_well_order(member_predicate, A)) | (~![X: $i] : ((~member(X, A)) | subset(X, A))))))) | (~(member(A, on) | (~set(A)) | (~strict_well_order(member_predicate, A)) | (~((~member(tptp_fun_X_3(A), A)) | subset(tptp_fun_X_3(A), A)))))))))),
% 0.20/0.56      inference(bind,[status(th)],[])).
% 0.20/0.56  tff(228,plain,
% 0.20/0.56      (![A: $i] : (((~member(A, on)) | (set(A) & strict_well_order(member_predicate, A) & ![X: $i] : ((~member(X, A)) | subset(X, A)))) & (member(A, on) | (~set(A)) | (~strict_well_order(member_predicate, A)) | (~((~member(tptp_fun_X_3(A), A)) | subset(tptp_fun_X_3(A), A))))) <=> ![A: $i] : (~((~((~member(A, on)) | (~((~set(A)) | (~strict_well_order(member_predicate, A)) | (~![X: $i] : ((~member(X, A)) | subset(X, A))))))) | (~(member(A, on) | (~set(A)) | (~strict_well_order(member_predicate, A)) | (~((~member(tptp_fun_X_3(A), A)) | subset(tptp_fun_X_3(A), A)))))))),
% 0.20/0.56      inference(quant_intro,[status(thm)],[227])).
% 0.20/0.56  tff(229,plain,
% 0.20/0.56      (^[A: $i] : rewrite((((~member(A, on)) | (set(A) & strict_well_order(member_predicate, A) & ![X: $i] : ((~member(X, A)) | subset(X, A)))) & (member(A, on) | ((~set(A)) | (~strict_well_order(member_predicate, A)) | (~((~member(tptp_fun_X_3(A), A)) | subset(tptp_fun_X_3(A), A)))))) <=> (((~member(A, on)) | (set(A) & strict_well_order(member_predicate, A) & ![X: $i] : ((~member(X, A)) | subset(X, A)))) & (member(A, on) | (~set(A)) | (~strict_well_order(member_predicate, A)) | (~((~member(tptp_fun_X_3(A), A)) | subset(tptp_fun_X_3(A), A))))))),
% 0.20/0.56      inference(bind,[status(th)],[])).
% 0.20/0.56  tff(230,plain,
% 0.20/0.56      (![A: $i] : (((~member(A, on)) | (set(A) & strict_well_order(member_predicate, A) & ![X: $i] : ((~member(X, A)) | subset(X, A)))) & (member(A, on) | ((~set(A)) | (~strict_well_order(member_predicate, A)) | (~((~member(tptp_fun_X_3(A), A)) | subset(tptp_fun_X_3(A), A)))))) <=> ![A: $i] : (((~member(A, on)) | (set(A) & strict_well_order(member_predicate, A) & ![X: $i] : ((~member(X, A)) | subset(X, A)))) & (member(A, on) | (~set(A)) | (~strict_well_order(member_predicate, A)) | (~((~member(tptp_fun_X_3(A), A)) | subset(tptp_fun_X_3(A), A)))))),
% 0.20/0.56      inference(quant_intro,[status(thm)],[229])).
% 0.20/0.56  tff(231,plain,
% 0.20/0.56      (![A: $i] : (member(A, on) <=> (set(A) & strict_well_order(member_predicate, A) & ![X: $i] : ((~member(X, A)) | subset(X, A)))) <=> ![A: $i] : (member(A, on) <=> (set(A) & strict_well_order(member_predicate, A) & ![X: $i] : ((~member(X, A)) | subset(X, A))))),
% 0.20/0.56      inference(rewrite,[status(thm)],[])).
% 0.20/0.56  tff(232,plain,
% 0.20/0.56      (^[A: $i] : rewrite((member(A, on) <=> ((set(A) & strict_well_order(member_predicate, A)) & ![X: $i] : (member(X, A) => subset(X, A)))) <=> (member(A, on) <=> (set(A) & strict_well_order(member_predicate, A) & ![X: $i] : ((~member(X, A)) | subset(X, A)))))),
% 0.20/0.56      inference(bind,[status(th)],[])).
% 0.20/0.56  tff(233,plain,
% 0.20/0.56      (![A: $i] : (member(A, on) <=> ((set(A) & strict_well_order(member_predicate, A)) & ![X: $i] : (member(X, A) => subset(X, A)))) <=> ![A: $i] : (member(A, on) <=> (set(A) & strict_well_order(member_predicate, A) & ![X: $i] : ((~member(X, A)) | subset(X, A))))),
% 0.20/0.56      inference(quant_intro,[status(thm)],[232])).
% 0.20/0.56  tff(234,axiom,(![A: $i] : (member(A, on) <=> ((set(A) & strict_well_order(member_predicate, A)) & ![X: $i] : (member(X, A) => subset(X, A))))), file('/export/starexec/sandbox2/benchmark/Axioms/SET006+4.ax','ordinal_number')).
% 0.20/0.56  tff(235,plain,
% 0.20/0.56      (![A: $i] : (member(A, on) <=> (set(A) & strict_well_order(member_predicate, A) & ![X: $i] : ((~member(X, A)) | subset(X, A))))),
% 0.20/0.56      inference(modus_ponens,[status(thm)],[234, 233])).
% 0.20/0.56  tff(236,plain,
% 0.20/0.56      (![A: $i] : (member(A, on) <=> (set(A) & strict_well_order(member_predicate, A) & ![X: $i] : ((~member(X, A)) | subset(X, A))))),
% 0.20/0.56      inference(modus_ponens,[status(thm)],[235, 231])).
% 0.20/0.56  tff(237,plain,(
% 0.20/0.56      ![A: $i] : (((~member(A, on)) | (set(A) & strict_well_order(member_predicate, A) & ![X: $i] : ((~member(X, A)) | subset(X, A)))) & (member(A, on) | ((~set(A)) | (~strict_well_order(member_predicate, A)) | (~((~member(tptp_fun_X_3(A), A)) | subset(tptp_fun_X_3(A), A))))))),
% 0.20/0.56      inference(skolemize,[status(sab)],[236])).
% 0.20/0.56  tff(238,plain,
% 0.20/0.56      (![A: $i] : (((~member(A, on)) | (set(A) & strict_well_order(member_predicate, A) & ![X: $i] : ((~member(X, A)) | subset(X, A)))) & (member(A, on) | (~set(A)) | (~strict_well_order(member_predicate, A)) | (~((~member(tptp_fun_X_3(A), A)) | subset(tptp_fun_X_3(A), A)))))),
% 0.20/0.56      inference(modus_ponens,[status(thm)],[237, 230])).
% 0.20/0.56  tff(239,plain,
% 0.20/0.56      (![A: $i] : (~((~((~member(A, on)) | (~((~set(A)) | (~strict_well_order(member_predicate, A)) | (~![X: $i] : ((~member(X, A)) | subset(X, A))))))) | (~(member(A, on) | (~set(A)) | (~strict_well_order(member_predicate, A)) | (~((~member(tptp_fun_X_3(A), A)) | subset(tptp_fun_X_3(A), A)))))))),
% 0.20/0.56      inference(modus_ponens,[status(thm)],[238, 228])).
% 0.20/0.56  tff(240,plain,
% 0.20/0.56      (![A: $i] : (~((~((~member(A, on)) | (~((~set(A)) | (~strict_well_order(member_predicate, A)) | (~![X: $i] : ((~member(X, A)) | subset(X, A))))))) | (~(member(A, on) | (~set(A)) | (~strict_well_order(member_predicate, A)) | (~((~member(tptp_fun_X_3(A), A)) | subset(tptp_fun_X_3(A), A)))))))),
% 0.20/0.56      inference(modus_ponens,[status(thm)],[239, 226])).
% 0.20/0.56  tff(241,plain,
% 0.20/0.56      (![A: $i] : (~((~(member(A, on) | (~set(A)) | (~strict_well_order(member_predicate, A)) | (~((~member(tptp_fun_X_3(A), A)) | subset(tptp_fun_X_3(A), A))))) | (~((~member(A, on)) | (~((~set(A)) | (~strict_well_order(member_predicate, A)) | (~![X: $i] : ((~member(X, A)) | subset(X, A)))))))))),
% 0.20/0.56      inference(modus_ponens,[status(thm)],[240, 221])).
% 0.20/0.56  tff(242,plain,
% 0.20/0.56      ((~![A: $i] : (~((~(member(A, on) | (~set(A)) | (~strict_well_order(member_predicate, A)) | (~((~member(tptp_fun_X_3(A), A)) | subset(tptp_fun_X_3(A), A))))) | (~((~member(A, on)) | (~((~set(A)) | (~strict_well_order(member_predicate, A)) | (~![X: $i] : ((~member(X, A)) | subset(X, A)))))))))) | (~((~(member(A!13, on) | (~set(A!13)) | (~strict_well_order(member_predicate, A!13)) | (~((~member(tptp_fun_X_3(A!13), A!13)) | subset(tptp_fun_X_3(A!13), A!13))))) | (~((~member(A!13, on)) | (~((~set(A!13)) | (~strict_well_order(member_predicate, A!13)) | (~![X: $i] : ((~member(X, A!13)) | subset(X, A!13)))))))))),
% 0.20/0.56      inference(quant_inst,[status(thm)],[])).
% 0.20/0.56  tff(243,plain,
% 0.20/0.56      (~((~(member(A!13, on) | (~set(A!13)) | (~strict_well_order(member_predicate, A!13)) | (~((~member(tptp_fun_X_3(A!13), A!13)) | subset(tptp_fun_X_3(A!13), A!13))))) | (~((~member(A!13, on)) | (~((~set(A!13)) | (~strict_well_order(member_predicate, A!13)) | (~![X: $i] : ((~member(X, A!13)) | subset(X, A!13))))))))),
% 0.20/0.56      inference(unit_resolution,[status(thm)],[242, 241])).
% 0.20/0.56  tff(244,plain,
% 0.20/0.56      (((~(member(A!13, on) | (~set(A!13)) | (~strict_well_order(member_predicate, A!13)) | (~((~member(tptp_fun_X_3(A!13), A!13)) | subset(tptp_fun_X_3(A!13), A!13))))) | (~((~member(A!13, on)) | (~((~set(A!13)) | (~strict_well_order(member_predicate, A!13)) | (~![X: $i] : ((~member(X, A!13)) | subset(X, A!13)))))))) | ((~member(A!13, on)) | (~((~set(A!13)) | (~strict_well_order(member_predicate, A!13)) | (~![X: $i] : ((~member(X, A!13)) | subset(X, A!13))))))),
% 0.20/0.56      inference(tautology,[status(thm)],[])).
% 0.20/0.56  tff(245,plain,
% 0.20/0.56      ((~member(A!13, on)) | (~((~set(A!13)) | (~strict_well_order(member_predicate, A!13)) | (~![X: $i] : ((~member(X, A!13)) | subset(X, A!13)))))),
% 0.20/0.56      inference(unit_resolution,[status(thm)],[244, 243])).
% 0.20/0.56  tff(246,plain,
% 0.20/0.56      (member(A!13, on)),
% 0.20/0.56      inference(or_elim,[status(thm)],[144])).
% 0.20/0.56  tff(247,plain,
% 0.20/0.56      ((~((~member(A!13, on)) | (~((~set(A!13)) | (~strict_well_order(member_predicate, A!13)) | (~![X: $i] : ((~member(X, A!13)) | subset(X, A!13))))))) | (~member(A!13, on)) | (~((~set(A!13)) | (~strict_well_order(member_predicate, A!13)) | (~![X: $i] : ((~member(X, A!13)) | subset(X, A!13)))))),
% 0.20/0.56      inference(tautology,[status(thm)],[])).
% 0.20/0.56  tff(248,plain,
% 0.20/0.56      ((~((~member(A!13, on)) | (~((~set(A!13)) | (~strict_well_order(member_predicate, A!13)) | (~![X: $i] : ((~member(X, A!13)) | subset(X, A!13))))))) | (~((~set(A!13)) | (~strict_well_order(member_predicate, A!13)) | (~![X: $i] : ((~member(X, A!13)) | subset(X, A!13)))))),
% 0.20/0.56      inference(unit_resolution,[status(thm)],[247, 246])).
% 0.20/0.56  tff(249,plain,
% 0.20/0.56      (~((~set(A!13)) | (~strict_well_order(member_predicate, A!13)) | (~![X: $i] : ((~member(X, A!13)) | subset(X, A!13))))),
% 0.20/0.56      inference(unit_resolution,[status(thm)],[248, 245])).
% 0.20/0.56  tff(250,plain,
% 0.20/0.56      (((~set(A!13)) | (~strict_well_order(member_predicate, A!13)) | (~![X: $i] : ((~member(X, A!13)) | subset(X, A!13)))) | ![X: $i] : ((~member(X, A!13)) | subset(X, A!13))),
% 0.20/0.56      inference(tautology,[status(thm)],[])).
% 0.20/0.56  tff(251,plain,
% 0.20/0.56      (![X: $i] : ((~member(X, A!13)) | subset(X, A!13))),
% 0.20/0.56      inference(unit_resolution,[status(thm)],[250, 249])).
% 0.20/0.56  tff(252,plain,
% 0.20/0.56      (((~![X: $i] : ((~member(X, A!13)) | subset(X, A!13))) | ((~member(tptp_fun_Y_1(suc(A!13), tptp_fun_X_0(A!13, sum(suc(A!13)))), A!13)) | subset(tptp_fun_Y_1(suc(A!13), tptp_fun_X_0(A!13, sum(suc(A!13)))), A!13))) <=> ((~![X: $i] : ((~member(X, A!13)) | subset(X, A!13))) | (~member(tptp_fun_Y_1(suc(A!13), tptp_fun_X_0(A!13, sum(suc(A!13)))), A!13)) | subset(tptp_fun_Y_1(suc(A!13), tptp_fun_X_0(A!13, sum(suc(A!13)))), A!13))),
% 0.20/0.56      inference(rewrite,[status(thm)],[])).
% 0.20/0.56  tff(253,plain,
% 0.20/0.56      ((~![X: $i] : ((~member(X, A!13)) | subset(X, A!13))) | ((~member(tptp_fun_Y_1(suc(A!13), tptp_fun_X_0(A!13, sum(suc(A!13)))), A!13)) | subset(tptp_fun_Y_1(suc(A!13), tptp_fun_X_0(A!13, sum(suc(A!13)))), A!13))),
% 0.20/0.56      inference(quant_inst,[status(thm)],[])).
% 0.20/0.56  tff(254,plain,
% 0.20/0.56      ((~![X: $i] : ((~member(X, A!13)) | subset(X, A!13))) | (~member(tptp_fun_Y_1(suc(A!13), tptp_fun_X_0(A!13, sum(suc(A!13)))), A!13)) | subset(tptp_fun_Y_1(suc(A!13), tptp_fun_X_0(A!13, sum(suc(A!13)))), A!13)),
% 0.20/0.56      inference(modus_ponens,[status(thm)],[253, 252])).
% 0.20/0.56  tff(255,plain,
% 0.20/0.56      ($false),
% 0.20/0.56      inference(unit_resolution,[status(thm)],[254, 251, 219, 203])).
% 0.20/0.56  % SZS output end Proof
%------------------------------------------------------------------------------