TSTP Solution File: SWC189+1 by Z3---4.8.9.0

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : Z3---4.8.9.0
% Problem  : SWC189+1 : TPTP v8.1.0. Released v2.4.0.
% Transfm  : none
% Format   : tptp
% Command  : z3_tptp -proof -model -t:%d -file:%s

% Computer : n022.cluster.edu
% Model    : x86_64 x86_64
% CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 2.10GHz
% Memory   : 8042.1875MB
% OS       : Linux 3.10.0-693.el7.x86_64
% CPULimit : 300s
% WCLimit  : 300s
% DateTime : Tue Sep 20 11:55:59 EDT 2022

% Result   : Theorem 17.33s 11.43s
% Output   : Proof 17.33s
% Verified : 
% SZS Type : -

% Comments : 
%------------------------------------------------------------------------------
%----WARNING: Could not form TPTP format derivation
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.07/0.12  % Problem  : SWC189+1 : TPTP v8.1.0. Released v2.4.0.
% 0.07/0.13  % Command  : z3_tptp -proof -model -t:%d -file:%s
% 0.12/0.34  % Computer : n022.cluster.edu
% 0.12/0.34  % Model    : x86_64 x86_64
% 0.12/0.34  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.12/0.34  % Memory   : 8042.1875MB
% 0.12/0.34  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.12/0.34  % CPULimit : 300
% 0.12/0.34  % WCLimit  : 300
% 0.12/0.34  % DateTime : Sat Sep  3 22:24:09 EDT 2022
% 0.12/0.34  % CPUTime  : 
% 0.12/0.35  Z3tptp [4.8.9.0] (c) 2006-20**. Microsoft Corp.
% 0.12/0.35  Usage: tptp [options] [-file:]file
% 0.12/0.35    -h, -?       prints this message.
% 0.12/0.35    -smt2        print SMT-LIB2 benchmark.
% 0.12/0.35    -m, -model   generate model.
% 0.12/0.35    -p, -proof   generate proof.
% 0.12/0.35    -c, -core    generate unsat core of named formulas.
% 0.12/0.35    -st, -statistics display statistics.
% 0.12/0.35    -t:timeout   set timeout (in second).
% 0.12/0.35    -smt2status  display status in smt2 format instead of SZS.
% 0.12/0.35    -check_status check the status produced by Z3 against annotation in benchmark.
% 0.12/0.35    -<param>:<value> configuration parameter and value.
% 0.12/0.35    -o:<output-file> file to place output in.
% 17.33/11.43  % SZS status Theorem
% 17.33/11.43  % SZS output start Proof
% 17.33/11.43  tff(tptp_fun_W_49_type, type, (
% 17.33/11.43     tptp_fun_W_49: $i)).
% 17.33/11.43  tff(app_type, type, (
% 17.33/11.43     app: ( $i * $i ) > $i)).
% 17.33/11.43  tff(tptp_fun_X6_54_type, type, (
% 17.33/11.43     tptp_fun_X6_54: $i)).
% 17.33/11.43  tff(cons_type, type, (
% 17.33/11.43     cons: ( $i * $i ) > $i)).
% 17.33/11.43  tff(nil_type, type, (
% 17.33/11.43     nil: $i)).
% 17.33/11.43  tff(tptp_fun_X4_52_type, type, (
% 17.33/11.43     tptp_fun_X4_52: $i)).
% 17.33/11.43  tff(tptp_fun_X3_51_type, type, (
% 17.33/11.43     tptp_fun_X3_51: $i)).
% 17.33/11.43  tff(tptp_fun_X5_53_type, type, (
% 17.33/11.43     tptp_fun_X5_53: $i)).
% 17.33/11.43  tff(tptp_fun_U_47_type, type, (
% 17.33/11.43     tptp_fun_U_47: $i)).
% 17.33/11.43  tff(ssList_type, type, (
% 17.33/11.43     ssList: $i > $o)).
% 17.33/11.43  tff(ssItem_type, type, (
% 17.33/11.43     ssItem: $i > $o)).
% 17.33/11.43  tff(tptp_fun_X_50_type, type, (
% 17.33/11.43     tptp_fun_X_50: $i)).
% 17.33/11.43  tff(tptp_fun_V_48_type, type, (
% 17.33/11.43     tptp_fun_V_48: $i)).
% 17.33/11.43  tff(1,plain,
% 17.33/11.43      ((ssList(U!47) & (ssList(V!48) & ssList(W!49) & (V!48 = X!50) & (U!47 = W!49) & ssList(X!50) & ![Y: $i] : ((~ssItem(Y)) | ![Z: $i] : ((~ssItem(Z)) | ![X1: $i] : ((~ssList(X1)) | ![X2: $i] : (~(ssList(X2) & (~(Y = Z)) & (app(app(app(X1, cons(Y, nil)), cons(Z, nil)), X2) = W!49)))))) & ssItem(X3!51) & ssItem(X4!52) & ssList(X5!53) & (~((X3!51 = X4!52) | (~(app(app(app(X5!53, cons(X3!51, nil)), cons(X4!52, nil)), X6!54) = U!47)) | (~ssList(X6!54)))))) <=> (ssList(U!47) & ssList(V!48) & ssList(W!49) & (V!48 = X!50) & (U!47 = W!49) & ssList(X!50) & ![Y: $i] : ((~ssItem(Y)) | ![Z: $i] : ((~ssItem(Z)) | ![X1: $i] : ((~ssList(X1)) | ![X2: $i] : (~(ssList(X2) & (~(Y = Z)) & (app(app(app(X1, cons(Y, nil)), cons(Z, nil)), X2) = W!49)))))) & ssItem(X3!51) & ssItem(X4!52) & ssList(X5!53) & (~((X3!51 = X4!52) | (~(app(app(app(X5!53, cons(X3!51, nil)), cons(X4!52, nil)), X6!54) = U!47)) | (~ssList(X6!54)))))),
% 17.33/11.43      inference(rewrite,[status(thm)],[])).
% 17.33/11.43  tff(2,plain,
% 17.33/11.43      ((ssList(V!48) & (ssList(W!49) & (V!48 = X!50) & (U!47 = W!49) & ssList(X!50) & ![Y: $i] : ((~ssItem(Y)) | ![Z: $i] : ((~ssItem(Z)) | ![X1: $i] : ((~ssList(X1)) | ![X2: $i] : (~(ssList(X2) & (~(Y = Z)) & (app(app(app(X1, cons(Y, nil)), cons(Z, nil)), X2) = W!49)))))) & ssItem(X3!51) & ssItem(X4!52) & ssList(X5!53) & (~((X3!51 = X4!52) | (~(app(app(app(X5!53, cons(X3!51, nil)), cons(X4!52, nil)), X6!54) = U!47)) | (~ssList(X6!54)))))) <=> (ssList(V!48) & ssList(W!49) & (V!48 = X!50) & (U!47 = W!49) & ssList(X!50) & ![Y: $i] : ((~ssItem(Y)) | ![Z: $i] : ((~ssItem(Z)) | ![X1: $i] : ((~ssList(X1)) | ![X2: $i] : (~(ssList(X2) & (~(Y = Z)) & (app(app(app(X1, cons(Y, nil)), cons(Z, nil)), X2) = W!49)))))) & ssItem(X3!51) & ssItem(X4!52) & ssList(X5!53) & (~((X3!51 = X4!52) | (~(app(app(app(X5!53, cons(X3!51, nil)), cons(X4!52, nil)), X6!54) = U!47)) | (~ssList(X6!54)))))),
% 17.33/11.43      inference(rewrite,[status(thm)],[])).
% 17.33/11.43  tff(3,plain,
% 17.33/11.43      ((ssList(W!49) & ((V!48 = X!50) & (U!47 = W!49) & ssList(X!50) & ![Y: $i] : ((~ssItem(Y)) | ![Z: $i] : ((~ssItem(Z)) | ![X1: $i] : ((~ssList(X1)) | ![X2: $i] : (~(ssList(X2) & (~(Y = Z)) & (app(app(app(X1, cons(Y, nil)), cons(Z, nil)), X2) = W!49)))))) & ssItem(X3!51) & ssItem(X4!52) & ssList(X5!53) & (~((X3!51 = X4!52) | (~(app(app(app(X5!53, cons(X3!51, nil)), cons(X4!52, nil)), X6!54) = U!47)) | (~ssList(X6!54)))))) <=> (ssList(W!49) & (V!48 = X!50) & (U!47 = W!49) & ssList(X!50) & ![Y: $i] : ((~ssItem(Y)) | ![Z: $i] : ((~ssItem(Z)) | ![X1: $i] : ((~ssList(X1)) | ![X2: $i] : (~(ssList(X2) & (~(Y = Z)) & (app(app(app(X1, cons(Y, nil)), cons(Z, nil)), X2) = W!49)))))) & ssItem(X3!51) & ssItem(X4!52) & ssList(X5!53) & (~((X3!51 = X4!52) | (~(app(app(app(X5!53, cons(X3!51, nil)), cons(X4!52, nil)), X6!54) = U!47)) | (~ssList(X6!54)))))),
% 17.33/11.43      inference(rewrite,[status(thm)],[])).
% 17.33/11.43  tff(4,plain,
% 17.33/11.43      (((V!48 = X!50) & (U!47 = W!49) & ssList(X!50) & ![Y: $i] : ((~ssItem(Y)) | ![Z: $i] : ((~ssItem(Z)) | ![X1: $i] : ((~ssList(X1)) | ![X2: $i] : (~(ssList(X2) & (~(Y = Z)) & (app(app(app(X1, cons(Y, nil)), cons(Z, nil)), X2) = W!49)))))) & (ssItem(X3!51) & ssItem(X4!52) & ssList(X5!53) & (~((X3!51 = X4!52) | (~(app(app(app(X5!53, cons(X3!51, nil)), cons(X4!52, nil)), X6!54) = U!47)) | (~ssList(X6!54)))))) <=> ((V!48 = X!50) & (U!47 = W!49) & ssList(X!50) & ![Y: $i] : ((~ssItem(Y)) | ![Z: $i] : ((~ssItem(Z)) | ![X1: $i] : ((~ssList(X1)) | ![X2: $i] : (~(ssList(X2) & (~(Y = Z)) & (app(app(app(X1, cons(Y, nil)), cons(Z, nil)), X2) = W!49)))))) & ssItem(X3!51) & ssItem(X4!52) & ssList(X5!53) & (~((X3!51 = X4!52) | (~(app(app(app(X5!53, cons(X3!51, nil)), cons(X4!52, nil)), X6!54) = U!47)) | (~ssList(X6!54)))))),
% 17.33/11.43      inference(rewrite,[status(thm)],[])).
% 17.33/11.43  tff(5,plain,
% 17.33/11.43      ((ssItem(X3!51) & (ssItem(X4!52) & ssList(X5!53) & (~((X3!51 = X4!52) | (~(app(app(app(X5!53, cons(X3!51, nil)), cons(X4!52, nil)), X6!54) = U!47)) | (~ssList(X6!54)))))) <=> (ssItem(X3!51) & ssItem(X4!52) & ssList(X5!53) & (~((X3!51 = X4!52) | (~(app(app(app(X5!53, cons(X3!51, nil)), cons(X4!52, nil)), X6!54) = U!47)) | (~ssList(X6!54)))))),
% 17.33/11.43      inference(rewrite,[status(thm)],[])).
% 17.33/11.43  tff(6,plain,
% 17.33/11.43      ((ssItem(X4!52) & (ssList(X5!53) & (~((X3!51 = X4!52) | (~(app(app(app(X5!53, cons(X3!51, nil)), cons(X4!52, nil)), X6!54) = U!47)) | (~ssList(X6!54)))))) <=> (ssItem(X4!52) & ssList(X5!53) & (~((X3!51 = X4!52) | (~(app(app(app(X5!53, cons(X3!51, nil)), cons(X4!52, nil)), X6!54) = U!47)) | (~ssList(X6!54)))))),
% 17.33/11.43      inference(rewrite,[status(thm)],[])).
% 17.33/11.43  tff(7,plain,
% 17.33/11.43      (((~(~ssList(X5!53))) & (~((X3!51 = X4!52) | (~(app(app(app(X5!53, cons(X3!51, nil)), cons(X4!52, nil)), X6!54) = U!47)) | (~ssList(X6!54))))) <=> (ssList(X5!53) & (~((X3!51 = X4!52) | (~(app(app(app(X5!53, cons(X3!51, nil)), cons(X4!52, nil)), X6!54) = U!47)) | (~ssList(X6!54)))))),
% 17.33/11.43      inference(rewrite,[status(thm)],[])).
% 17.33/11.43  tff(8,plain,
% 17.33/11.43      ((~(~ssItem(X4!52))) <=> ssItem(X4!52)),
% 17.33/11.43      inference(rewrite,[status(thm)],[])).
% 17.33/11.43  tff(9,plain,
% 17.33/11.43      (((~(~ssItem(X4!52))) & ((~(~ssList(X5!53))) & (~((X3!51 = X4!52) | (~(app(app(app(X5!53, cons(X3!51, nil)), cons(X4!52, nil)), X6!54) = U!47)) | (~ssList(X6!54)))))) <=> (ssItem(X4!52) & (ssList(X5!53) & (~((X3!51 = X4!52) | (~(app(app(app(X5!53, cons(X3!51, nil)), cons(X4!52, nil)), X6!54) = U!47)) | (~ssList(X6!54))))))),
% 17.33/11.43      inference(monotonicity,[status(thm)],[8, 7])).
% 17.33/11.43  tff(10,plain,
% 17.33/11.43      (((~(~ssItem(X4!52))) & ((~(~ssList(X5!53))) & (~((X3!51 = X4!52) | (~(app(app(app(X5!53, cons(X3!51, nil)), cons(X4!52, nil)), X6!54) = U!47)) | (~ssList(X6!54)))))) <=> (ssItem(X4!52) & ssList(X5!53) & (~((X3!51 = X4!52) | (~(app(app(app(X5!53, cons(X3!51, nil)), cons(X4!52, nil)), X6!54) = U!47)) | (~ssList(X6!54)))))),
% 17.33/11.43      inference(transitivity,[status(thm)],[9, 6])).
% 17.33/11.43  tff(11,plain,
% 17.33/11.43      ((~(~ssItem(X3!51))) <=> ssItem(X3!51)),
% 17.33/11.43      inference(rewrite,[status(thm)],[])).
% 17.33/11.43  tff(12,plain,
% 17.33/11.43      (((~(~ssItem(X3!51))) & ((~(~ssItem(X4!52))) & ((~(~ssList(X5!53))) & (~((X3!51 = X4!52) | (~(app(app(app(X5!53, cons(X3!51, nil)), cons(X4!52, nil)), X6!54) = U!47)) | (~ssList(X6!54))))))) <=> (ssItem(X3!51) & (ssItem(X4!52) & ssList(X5!53) & (~((X3!51 = X4!52) | (~(app(app(app(X5!53, cons(X3!51, nil)), cons(X4!52, nil)), X6!54) = U!47)) | (~ssList(X6!54))))))),
% 17.33/11.43      inference(monotonicity,[status(thm)],[11, 10])).
% 17.33/11.43  tff(13,plain,
% 17.33/11.43      (((~(~ssItem(X3!51))) & ((~(~ssItem(X4!52))) & ((~(~ssList(X5!53))) & (~((X3!51 = X4!52) | (~(app(app(app(X5!53, cons(X3!51, nil)), cons(X4!52, nil)), X6!54) = U!47)) | (~ssList(X6!54))))))) <=> (ssItem(X3!51) & ssItem(X4!52) & ssList(X5!53) & (~((X3!51 = X4!52) | (~(app(app(app(X5!53, cons(X3!51, nil)), cons(X4!52, nil)), X6!54) = U!47)) | (~ssList(X6!54)))))),
% 17.33/11.43      inference(transitivity,[status(thm)],[12, 5])).
% 17.33/11.43  tff(14,plain,
% 17.33/11.43      ((~(~ssList(X!50))) <=> ssList(X!50)),
% 17.33/11.43      inference(rewrite,[status(thm)],[])).
% 17.33/11.43  tff(15,plain,
% 17.33/11.43      ((~(~(U!47 = W!49))) <=> (U!47 = W!49)),
% 17.33/11.43      inference(rewrite,[status(thm)],[])).
% 17.33/11.43  tff(16,plain,
% 17.33/11.43      ((~(~(V!48 = X!50))) <=> (V!48 = X!50)),
% 17.33/11.43      inference(rewrite,[status(thm)],[])).
% 17.33/11.43  tff(17,plain,
% 17.33/11.43      (((~(~(V!48 = X!50))) & (~(~(U!47 = W!49))) & (~(~ssList(X!50))) & ![Y: $i] : ((~ssItem(Y)) | ![Z: $i] : ((~ssItem(Z)) | ![X1: $i] : ((~ssList(X1)) | ![X2: $i] : (~(ssList(X2) & (~(Y = Z)) & (app(app(app(X1, cons(Y, nil)), cons(Z, nil)), X2) = W!49)))))) & ((~(~ssItem(X3!51))) & ((~(~ssItem(X4!52))) & ((~(~ssList(X5!53))) & (~((X3!51 = X4!52) | (~(app(app(app(X5!53, cons(X3!51, nil)), cons(X4!52, nil)), X6!54) = U!47)) | (~ssList(X6!54)))))))) <=> ((V!48 = X!50) & (U!47 = W!49) & ssList(X!50) & ![Y: $i] : ((~ssItem(Y)) | ![Z: $i] : ((~ssItem(Z)) | ![X1: $i] : ((~ssList(X1)) | ![X2: $i] : (~(ssList(X2) & (~(Y = Z)) & (app(app(app(X1, cons(Y, nil)), cons(Z, nil)), X2) = W!49)))))) & (ssItem(X3!51) & ssItem(X4!52) & ssList(X5!53) & (~((X3!51 = X4!52) | (~(app(app(app(X5!53, cons(X3!51, nil)), cons(X4!52, nil)), X6!54) = U!47)) | (~ssList(X6!54))))))),
% 17.33/11.44      inference(monotonicity,[status(thm)],[16, 15, 14, 13])).
% 17.33/11.44  tff(18,plain,
% 17.33/11.44      (((~(~(V!48 = X!50))) & (~(~(U!47 = W!49))) & (~(~ssList(X!50))) & ![Y: $i] : ((~ssItem(Y)) | ![Z: $i] : ((~ssItem(Z)) | ![X1: $i] : ((~ssList(X1)) | ![X2: $i] : (~(ssList(X2) & (~(Y = Z)) & (app(app(app(X1, cons(Y, nil)), cons(Z, nil)), X2) = W!49)))))) & ((~(~ssItem(X3!51))) & ((~(~ssItem(X4!52))) & ((~(~ssList(X5!53))) & (~((X3!51 = X4!52) | (~(app(app(app(X5!53, cons(X3!51, nil)), cons(X4!52, nil)), X6!54) = U!47)) | (~ssList(X6!54)))))))) <=> ((V!48 = X!50) & (U!47 = W!49) & ssList(X!50) & ![Y: $i] : ((~ssItem(Y)) | ![Z: $i] : ((~ssItem(Z)) | ![X1: $i] : ((~ssList(X1)) | ![X2: $i] : (~(ssList(X2) & (~(Y = Z)) & (app(app(app(X1, cons(Y, nil)), cons(Z, nil)), X2) = W!49)))))) & ssItem(X3!51) & ssItem(X4!52) & ssList(X5!53) & (~((X3!51 = X4!52) | (~(app(app(app(X5!53, cons(X3!51, nil)), cons(X4!52, nil)), X6!54) = U!47)) | (~ssList(X6!54)))))),
% 17.33/11.44      inference(transitivity,[status(thm)],[17, 4])).
% 17.33/11.44  tff(19,plain,
% 17.33/11.44      ((~(~ssList(W!49))) <=> ssList(W!49)),
% 17.33/11.44      inference(rewrite,[status(thm)],[])).
% 17.33/11.44  tff(20,plain,
% 17.33/11.44      (((~(~ssList(W!49))) & ((~(~(V!48 = X!50))) & (~(~(U!47 = W!49))) & (~(~ssList(X!50))) & ![Y: $i] : ((~ssItem(Y)) | ![Z: $i] : ((~ssItem(Z)) | ![X1: $i] : ((~ssList(X1)) | ![X2: $i] : (~(ssList(X2) & (~(Y = Z)) & (app(app(app(X1, cons(Y, nil)), cons(Z, nil)), X2) = W!49)))))) & ((~(~ssItem(X3!51))) & ((~(~ssItem(X4!52))) & ((~(~ssList(X5!53))) & (~((X3!51 = X4!52) | (~(app(app(app(X5!53, cons(X3!51, nil)), cons(X4!52, nil)), X6!54) = U!47)) | (~ssList(X6!54))))))))) <=> (ssList(W!49) & ((V!48 = X!50) & (U!47 = W!49) & ssList(X!50) & ![Y: $i] : ((~ssItem(Y)) | ![Z: $i] : ((~ssItem(Z)) | ![X1: $i] : ((~ssList(X1)) | ![X2: $i] : (~(ssList(X2) & (~(Y = Z)) & (app(app(app(X1, cons(Y, nil)), cons(Z, nil)), X2) = W!49)))))) & ssItem(X3!51) & ssItem(X4!52) & ssList(X5!53) & (~((X3!51 = X4!52) | (~(app(app(app(X5!53, cons(X3!51, nil)), cons(X4!52, nil)), X6!54) = U!47)) | (~ssList(X6!54))))))),
% 17.33/11.44      inference(monotonicity,[status(thm)],[19, 18])).
% 17.33/11.44  tff(21,plain,
% 17.33/11.44      (((~(~ssList(W!49))) & ((~(~(V!48 = X!50))) & (~(~(U!47 = W!49))) & (~(~ssList(X!50))) & ![Y: $i] : ((~ssItem(Y)) | ![Z: $i] : ((~ssItem(Z)) | ![X1: $i] : ((~ssList(X1)) | ![X2: $i] : (~(ssList(X2) & (~(Y = Z)) & (app(app(app(X1, cons(Y, nil)), cons(Z, nil)), X2) = W!49)))))) & ((~(~ssItem(X3!51))) & ((~(~ssItem(X4!52))) & ((~(~ssList(X5!53))) & (~((X3!51 = X4!52) | (~(app(app(app(X5!53, cons(X3!51, nil)), cons(X4!52, nil)), X6!54) = U!47)) | (~ssList(X6!54))))))))) <=> (ssList(W!49) & (V!48 = X!50) & (U!47 = W!49) & ssList(X!50) & ![Y: $i] : ((~ssItem(Y)) | ![Z: $i] : ((~ssItem(Z)) | ![X1: $i] : ((~ssList(X1)) | ![X2: $i] : (~(ssList(X2) & (~(Y = Z)) & (app(app(app(X1, cons(Y, nil)), cons(Z, nil)), X2) = W!49)))))) & ssItem(X3!51) & ssItem(X4!52) & ssList(X5!53) & (~((X3!51 = X4!52) | (~(app(app(app(X5!53, cons(X3!51, nil)), cons(X4!52, nil)), X6!54) = U!47)) | (~ssList(X6!54)))))),
% 17.33/11.44      inference(transitivity,[status(thm)],[20, 3])).
% 17.33/11.44  tff(22,plain,
% 17.33/11.44      ((~(~ssList(V!48))) <=> ssList(V!48)),
% 17.33/11.44      inference(rewrite,[status(thm)],[])).
% 17.33/11.44  tff(23,plain,
% 17.33/11.44      (((~(~ssList(V!48))) & ((~(~ssList(W!49))) & ((~(~(V!48 = X!50))) & (~(~(U!47 = W!49))) & (~(~ssList(X!50))) & ![Y: $i] : ((~ssItem(Y)) | ![Z: $i] : ((~ssItem(Z)) | ![X1: $i] : ((~ssList(X1)) | ![X2: $i] : (~(ssList(X2) & (~(Y = Z)) & (app(app(app(X1, cons(Y, nil)), cons(Z, nil)), X2) = W!49)))))) & ((~(~ssItem(X3!51))) & ((~(~ssItem(X4!52))) & ((~(~ssList(X5!53))) & (~((X3!51 = X4!52) | (~(app(app(app(X5!53, cons(X3!51, nil)), cons(X4!52, nil)), X6!54) = U!47)) | (~ssList(X6!54)))))))))) <=> (ssList(V!48) & (ssList(W!49) & (V!48 = X!50) & (U!47 = W!49) & ssList(X!50) & ![Y: $i] : ((~ssItem(Y)) | ![Z: $i] : ((~ssItem(Z)) | ![X1: $i] : ((~ssList(X1)) | ![X2: $i] : (~(ssList(X2) & (~(Y = Z)) & (app(app(app(X1, cons(Y, nil)), cons(Z, nil)), X2) = W!49)))))) & ssItem(X3!51) & ssItem(X4!52) & ssList(X5!53) & (~((X3!51 = X4!52) | (~(app(app(app(X5!53, cons(X3!51, nil)), cons(X4!52, nil)), X6!54) = U!47)) | (~ssList(X6!54))))))),
% 17.33/11.44      inference(monotonicity,[status(thm)],[22, 21])).
% 17.33/11.44  tff(24,plain,
% 17.33/11.44      (((~(~ssList(V!48))) & ((~(~ssList(W!49))) & ((~(~(V!48 = X!50))) & (~(~(U!47 = W!49))) & (~(~ssList(X!50))) & ![Y: $i] : ((~ssItem(Y)) | ![Z: $i] : ((~ssItem(Z)) | ![X1: $i] : ((~ssList(X1)) | ![X2: $i] : (~(ssList(X2) & (~(Y = Z)) & (app(app(app(X1, cons(Y, nil)), cons(Z, nil)), X2) = W!49)))))) & ((~(~ssItem(X3!51))) & ((~(~ssItem(X4!52))) & ((~(~ssList(X5!53))) & (~((X3!51 = X4!52) | (~(app(app(app(X5!53, cons(X3!51, nil)), cons(X4!52, nil)), X6!54) = U!47)) | (~ssList(X6!54)))))))))) <=> (ssList(V!48) & ssList(W!49) & (V!48 = X!50) & (U!47 = W!49) & ssList(X!50) & ![Y: $i] : ((~ssItem(Y)) | ![Z: $i] : ((~ssItem(Z)) | ![X1: $i] : ((~ssList(X1)) | ![X2: $i] : (~(ssList(X2) & (~(Y = Z)) & (app(app(app(X1, cons(Y, nil)), cons(Z, nil)), X2) = W!49)))))) & ssItem(X3!51) & ssItem(X4!52) & ssList(X5!53) & (~((X3!51 = X4!52) | (~(app(app(app(X5!53, cons(X3!51, nil)), cons(X4!52, nil)), X6!54) = U!47)) | (~ssList(X6!54)))))),
% 17.33/11.44      inference(transitivity,[status(thm)],[23, 2])).
% 17.33/11.44  tff(25,plain,
% 17.33/11.44      ((~(~ssList(U!47))) <=> ssList(U!47)),
% 17.33/11.44      inference(rewrite,[status(thm)],[])).
% 17.33/11.44  tff(26,plain,
% 17.33/11.44      (((~(~ssList(U!47))) & ((~(~ssList(V!48))) & ((~(~ssList(W!49))) & ((~(~(V!48 = X!50))) & (~(~(U!47 = W!49))) & (~(~ssList(X!50))) & ![Y: $i] : ((~ssItem(Y)) | ![Z: $i] : ((~ssItem(Z)) | ![X1: $i] : ((~ssList(X1)) | ![X2: $i] : (~(ssList(X2) & (~(Y = Z)) & (app(app(app(X1, cons(Y, nil)), cons(Z, nil)), X2) = W!49)))))) & ((~(~ssItem(X3!51))) & ((~(~ssItem(X4!52))) & ((~(~ssList(X5!53))) & (~((X3!51 = X4!52) | (~(app(app(app(X5!53, cons(X3!51, nil)), cons(X4!52, nil)), X6!54) = U!47)) | (~ssList(X6!54))))))))))) <=> (ssList(U!47) & (ssList(V!48) & ssList(W!49) & (V!48 = X!50) & (U!47 = W!49) & ssList(X!50) & ![Y: $i] : ((~ssItem(Y)) | ![Z: $i] : ((~ssItem(Z)) | ![X1: $i] : ((~ssList(X1)) | ![X2: $i] : (~(ssList(X2) & (~(Y = Z)) & (app(app(app(X1, cons(Y, nil)), cons(Z, nil)), X2) = W!49)))))) & ssItem(X3!51) & ssItem(X4!52) & ssList(X5!53) & (~((X3!51 = X4!52) | (~(app(app(app(X5!53, cons(X3!51, nil)), cons(X4!52, nil)), X6!54) = U!47)) | (~ssList(X6!54))))))),
% 17.33/11.44      inference(monotonicity,[status(thm)],[25, 24])).
% 17.33/11.44  tff(27,plain,
% 17.33/11.44      (((~(~ssList(U!47))) & ((~(~ssList(V!48))) & ((~(~ssList(W!49))) & ((~(~(V!48 = X!50))) & (~(~(U!47 = W!49))) & (~(~ssList(X!50))) & ![Y: $i] : ((~ssItem(Y)) | ![Z: $i] : ((~ssItem(Z)) | ![X1: $i] : ((~ssList(X1)) | ![X2: $i] : (~(ssList(X2) & (~(Y = Z)) & (app(app(app(X1, cons(Y, nil)), cons(Z, nil)), X2) = W!49)))))) & ((~(~ssItem(X3!51))) & ((~(~ssItem(X4!52))) & ((~(~ssList(X5!53))) & (~((X3!51 = X4!52) | (~(app(app(app(X5!53, cons(X3!51, nil)), cons(X4!52, nil)), X6!54) = U!47)) | (~ssList(X6!54))))))))))) <=> (ssList(U!47) & ssList(V!48) & ssList(W!49) & (V!48 = X!50) & (U!47 = W!49) & ssList(X!50) & ![Y: $i] : ((~ssItem(Y)) | ![Z: $i] : ((~ssItem(Z)) | ![X1: $i] : ((~ssList(X1)) | ![X2: $i] : (~(ssList(X2) & (~(Y = Z)) & (app(app(app(X1, cons(Y, nil)), cons(Z, nil)), X2) = W!49)))))) & ssItem(X3!51) & ssItem(X4!52) & ssList(X5!53) & (~((X3!51 = X4!52) | (~(app(app(app(X5!53, cons(X3!51, nil)), cons(X4!52, nil)), X6!54) = U!47)) | (~ssList(X6!54)))))),
% 17.33/11.44      inference(transitivity,[status(thm)],[26, 1])).
% 17.33/11.44  tff(28,plain,
% 17.33/11.44      ((~![U: $i] : ((~ssList(U)) | ![V: $i] : ((~ssList(V)) | ![W: $i] : ((~ssList(W)) | ![X: $i] : ((~(V = X)) | (~(U = W)) | (~ssList(X)) | ?[Y: $i] : (ssItem(Y) & ?[Z: $i] : (ssItem(Z) & ?[X1: $i] : (ssList(X1) & ?[X2: $i] : (ssList(X2) & (~(Y = Z)) & (app(app(app(X1, cons(Y, nil)), cons(Z, nil)), X2) = W))))) | ![X3: $i] : ((~ssItem(X3)) | ![X4: $i] : ((~ssItem(X4)) | ![X5: $i] : ((~ssList(X5)) | ![X6: $i] : ((X3 = X4) | (~(app(app(app(X5, cons(X3, nil)), cons(X4, nil)), X6) = U)) | (~ssList(X6))))))))))) <=> (~![U: $i] : ((~ssList(U)) | ![V: $i] : ((~ssList(V)) | ![W: $i] : ((~ssList(W)) | ![X: $i] : ((~(V = X)) | (~(U = W)) | (~ssList(X)) | ?[Y: $i] : (ssItem(Y) & ?[Z: $i] : (ssItem(Z) & ?[X1: $i] : (ssList(X1) & ?[X2: $i] : (ssList(X2) & (~(Y = Z)) & (app(app(app(X1, cons(Y, nil)), cons(Z, nil)), X2) = W))))) | ![X3: $i] : ((~ssItem(X3)) | ![X4: $i] : ((~ssItem(X4)) | ![X5: $i] : ((~ssList(X5)) | ![X6: $i] : ((X3 = X4) | (~(app(app(app(X5, cons(X3, nil)), cons(X4, nil)), X6) = U)) | (~ssList(X6)))))))))))),
% 17.33/11.44      inference(rewrite,[status(thm)],[])).
% 17.33/11.44  tff(29,plain,
% 17.33/11.44      ((~![U: $i] : (ssList(U) => ![V: $i] : (ssList(V) => ![W: $i] : (ssList(W) => ![X: $i] : (ssList(X) => ((((~(V = X)) | (~(U = W))) | ?[Y: $i] : (ssItem(Y) & ?[Z: $i] : (ssItem(Z) & ?[X1: $i] : (ssList(X1) & ?[X2: $i] : ((ssList(X2) & (~(Y = Z))) & (app(app(app(X1, cons(Y, nil)), cons(Z, nil)), X2) = W)))))) | ![X3: $i] : (ssItem(X3) => ![X4: $i] : (ssItem(X4) => ![X5: $i] : (ssList(X5) => ![X6: $i] : (ssList(X6) => ((~(app(app(app(X5, cons(X3, nil)), cons(X4, nil)), X6) = U)) | (X3 = X4)))))))))))) <=> (~![U: $i] : ((~ssList(U)) | ![V: $i] : ((~ssList(V)) | ![W: $i] : ((~ssList(W)) | ![X: $i] : ((~(V = X)) | (~(U = W)) | (~ssList(X)) | ?[Y: $i] : (ssItem(Y) & ?[Z: $i] : (ssItem(Z) & ?[X1: $i] : (ssList(X1) & ?[X2: $i] : (ssList(X2) & (~(Y = Z)) & (app(app(app(X1, cons(Y, nil)), cons(Z, nil)), X2) = W))))) | ![X3: $i] : ((~ssItem(X3)) | ![X4: $i] : ((~ssItem(X4)) | ![X5: $i] : ((~ssList(X5)) | ![X6: $i] : ((X3 = X4) | (~(app(app(app(X5, cons(X3, nil)), cons(X4, nil)), X6) = U)) | (~ssList(X6)))))))))))),
% 17.33/11.44      inference(rewrite,[status(thm)],[])).
% 17.33/11.44  tff(30,axiom,(~![U: $i] : (ssList(U) => ![V: $i] : (ssList(V) => ![W: $i] : (ssList(W) => ![X: $i] : (ssList(X) => ((((~(V = X)) | (~(U = W))) | ?[Y: $i] : (ssItem(Y) & ?[Z: $i] : (ssItem(Z) & ?[X1: $i] : (ssList(X1) & ?[X2: $i] : ((ssList(X2) & (~(Y = Z))) & (app(app(app(X1, cons(Y, nil)), cons(Z, nil)), X2) = W)))))) | ![X3: $i] : (ssItem(X3) => ![X4: $i] : (ssItem(X4) => ![X5: $i] : (ssList(X5) => ![X6: $i] : (ssList(X6) => ((~(app(app(app(X5, cons(X3, nil)), cons(X4, nil)), X6) = U)) | (X3 = X4)))))))))))), file('/export/starexec/sandbox2/benchmark/theBenchmark.p','co1')).
% 17.33/11.44  tff(31,plain,
% 17.33/11.44      (~![U: $i] : ((~ssList(U)) | ![V: $i] : ((~ssList(V)) | ![W: $i] : ((~ssList(W)) | ![X: $i] : ((~(V = X)) | (~(U = W)) | (~ssList(X)) | ?[Y: $i] : (ssItem(Y) & ?[Z: $i] : (ssItem(Z) & ?[X1: $i] : (ssList(X1) & ?[X2: $i] : (ssList(X2) & (~(Y = Z)) & (app(app(app(X1, cons(Y, nil)), cons(Z, nil)), X2) = W))))) | ![X3: $i] : ((~ssItem(X3)) | ![X4: $i] : ((~ssItem(X4)) | ![X5: $i] : ((~ssList(X5)) | ![X6: $i] : ((X3 = X4) | (~(app(app(app(X5, cons(X3, nil)), cons(X4, nil)), X6) = U)) | (~ssList(X6))))))))))),
% 17.33/11.44      inference(modus_ponens,[status(thm)],[30, 29])).
% 17.33/11.44  tff(32,plain,
% 17.33/11.44      (~![U: $i] : ((~ssList(U)) | ![V: $i] : ((~ssList(V)) | ![W: $i] : ((~ssList(W)) | ![X: $i] : ((~(V = X)) | (~(U = W)) | (~ssList(X)) | ?[Y: $i] : (ssItem(Y) & ?[Z: $i] : (ssItem(Z) & ?[X1: $i] : (ssList(X1) & ?[X2: $i] : (ssList(X2) & (~(Y = Z)) & (app(app(app(X1, cons(Y, nil)), cons(Z, nil)), X2) = W))))) | ![X3: $i] : ((~ssItem(X3)) | ![X4: $i] : ((~ssItem(X4)) | ![X5: $i] : ((~ssList(X5)) | ![X6: $i] : ((X3 = X4) | (~(app(app(app(X5, cons(X3, nil)), cons(X4, nil)), X6) = U)) | (~ssList(X6))))))))))),
% 17.33/11.44      inference(modus_ponens,[status(thm)],[31, 28])).
% 17.33/11.44  tff(33,plain,
% 17.33/11.44      (~![U: $i] : ((~ssList(U)) | ![V: $i] : ((~ssList(V)) | ![W: $i] : ((~ssList(W)) | ![X: $i] : ((~(V = X)) | (~(U = W)) | (~ssList(X)) | ?[Y: $i] : (ssItem(Y) & ?[Z: $i] : (ssItem(Z) & ?[X1: $i] : (ssList(X1) & ?[X2: $i] : (ssList(X2) & (~(Y = Z)) & (app(app(app(X1, cons(Y, nil)), cons(Z, nil)), X2) = W))))) | ![X3: $i] : ((~ssItem(X3)) | ![X4: $i] : ((~ssItem(X4)) | ![X5: $i] : ((~ssList(X5)) | ![X6: $i] : ((X3 = X4) | (~(app(app(app(X5, cons(X3, nil)), cons(X4, nil)), X6) = U)) | (~ssList(X6))))))))))),
% 17.33/11.44      inference(modus_ponens,[status(thm)],[32, 28])).
% 17.33/11.44  tff(34,plain,
% 17.33/11.44      (~![U: $i] : ((~ssList(U)) | ![V: $i] : ((~ssList(V)) | ![W: $i] : ((~ssList(W)) | ![X: $i] : ((~(V = X)) | (~(U = W)) | (~ssList(X)) | ?[Y: $i] : (ssItem(Y) & ?[Z: $i] : (ssItem(Z) & ?[X1: $i] : (ssList(X1) & ?[X2: $i] : (ssList(X2) & (~(Y = Z)) & (app(app(app(X1, cons(Y, nil)), cons(Z, nil)), X2) = W))))) | ![X3: $i] : ((~ssItem(X3)) | ![X4: $i] : ((~ssItem(X4)) | ![X5: $i] : ((~ssList(X5)) | ![X6: $i] : ((X3 = X4) | (~(app(app(app(X5, cons(X3, nil)), cons(X4, nil)), X6) = U)) | (~ssList(X6))))))))))),
% 17.33/11.44      inference(modus_ponens,[status(thm)],[33, 28])).
% 17.33/11.44  tff(35,plain,
% 17.33/11.44      (~![U: $i] : ((~ssList(U)) | ![V: $i] : ((~ssList(V)) | ![W: $i] : ((~ssList(W)) | ![X: $i] : ((~(V = X)) | (~(U = W)) | (~ssList(X)) | ?[Y: $i] : (ssItem(Y) & ?[Z: $i] : (ssItem(Z) & ?[X1: $i] : (ssList(X1) & ?[X2: $i] : (ssList(X2) & (~(Y = Z)) & (app(app(app(X1, cons(Y, nil)), cons(Z, nil)), X2) = W))))) | ![X3: $i] : ((~ssItem(X3)) | ![X4: $i] : ((~ssItem(X4)) | ![X5: $i] : ((~ssList(X5)) | ![X6: $i] : ((X3 = X4) | (~(app(app(app(X5, cons(X3, nil)), cons(X4, nil)), X6) = U)) | (~ssList(X6))))))))))),
% 17.33/11.44      inference(modus_ponens,[status(thm)],[34, 28])).
% 17.33/11.44  tff(36,plain,
% 17.33/11.44      (~![U: $i] : ((~ssList(U)) | ![V: $i] : ((~ssList(V)) | ![W: $i] : ((~ssList(W)) | ![X: $i] : ((~(V = X)) | (~(U = W)) | (~ssList(X)) | ?[Y: $i] : (ssItem(Y) & ?[Z: $i] : (ssItem(Z) & ?[X1: $i] : (ssList(X1) & ?[X2: $i] : (ssList(X2) & (~(Y = Z)) & (app(app(app(X1, cons(Y, nil)), cons(Z, nil)), X2) = W))))) | ![X3: $i] : ((~ssItem(X3)) | ![X4: $i] : ((~ssItem(X4)) | ![X5: $i] : ((~ssList(X5)) | ![X6: $i] : ((X3 = X4) | (~(app(app(app(X5, cons(X3, nil)), cons(X4, nil)), X6) = U)) | (~ssList(X6))))))))))),
% 17.33/11.44      inference(modus_ponens,[status(thm)],[35, 28])).
% 17.33/11.44  tff(37,plain,
% 17.33/11.44      (~![U: $i] : ((~ssList(U)) | ![V: $i] : ((~ssList(V)) | ![W: $i] : ((~ssList(W)) | ![X: $i] : ((~(V = X)) | (~(U = W)) | (~ssList(X)) | ?[Y: $i] : (ssItem(Y) & ?[Z: $i] : (ssItem(Z) & ?[X1: $i] : (ssList(X1) & ?[X2: $i] : (ssList(X2) & (~(Y = Z)) & (app(app(app(X1, cons(Y, nil)), cons(Z, nil)), X2) = W))))) | ![X3: $i] : ((~ssItem(X3)) | ![X4: $i] : ((~ssItem(X4)) | ![X5: $i] : ((~ssList(X5)) | ![X6: $i] : ((X3 = X4) | (~(app(app(app(X5, cons(X3, nil)), cons(X4, nil)), X6) = U)) | (~ssList(X6))))))))))),
% 17.33/11.44      inference(modus_ponens,[status(thm)],[36, 28])).
% 17.33/11.44  tff(38,plain,
% 17.33/11.44      (ssList(U!47) & ssList(V!48) & ssList(W!49) & (V!48 = X!50) & (U!47 = W!49) & ssList(X!50) & ![Y: $i] : ((~ssItem(Y)) | ![Z: $i] : ((~ssItem(Z)) | ![X1: $i] : ((~ssList(X1)) | ![X2: $i] : (~(ssList(X2) & (~(Y = Z)) & (app(app(app(X1, cons(Y, nil)), cons(Z, nil)), X2) = W!49)))))) & ssItem(X3!51) & ssItem(X4!52) & ssList(X5!53) & (~((X3!51 = X4!52) | (~(app(app(app(X5!53, cons(X3!51, nil)), cons(X4!52, nil)), X6!54) = U!47)) | (~ssList(X6!54))))),
% 17.33/11.44      inference(modus_ponens,[status(thm)],[37, 27])).
% 17.33/11.44  tff(39,plain,
% 17.33/11.44      (U!47 = W!49),
% 17.33/11.44      inference(and_elim,[status(thm)],[38])).
% 17.33/11.44  tff(40,plain,
% 17.33/11.44      (~((X3!51 = X4!52) | (~(app(app(app(X5!53, cons(X3!51, nil)), cons(X4!52, nil)), X6!54) = U!47)) | (~ssList(X6!54)))),
% 17.33/11.44      inference(and_elim,[status(thm)],[38])).
% 17.33/11.44  tff(41,plain,
% 17.33/11.44      (app(app(app(X5!53, cons(X3!51, nil)), cons(X4!52, nil)), X6!54) = U!47),
% 17.33/11.44      inference(or_elim,[status(thm)],[40])).
% 17.33/11.44  tff(42,plain,
% 17.33/11.44      (app(app(app(X5!53, cons(X3!51, nil)), cons(X4!52, nil)), X6!54) = W!49),
% 17.33/11.44      inference(transitivity,[status(thm)],[41, 39])).
% 17.33/11.44  tff(43,plain,
% 17.33/11.44      (ssItem(X3!51)),
% 17.33/11.44      inference(and_elim,[status(thm)],[38])).
% 17.33/11.44  tff(44,plain,
% 17.33/11.44      (^[Y: $i] : refl(((~ssItem(Y)) | ![Z: $i] : ((~ssItem(Z)) | ![X1: $i] : ((~ssList(X1)) | ![X2: $i] : ((Y = Z) | (~ssList(X2)) | (~(app(app(app(X1, cons(Y, nil)), cons(Z, nil)), X2) = W!49)))))) <=> ((~ssItem(Y)) | ![Z: $i] : ((~ssItem(Z)) | ![X1: $i] : ((~ssList(X1)) | ![X2: $i] : ((Y = Z) | (~ssList(X2)) | (~(app(app(app(X1, cons(Y, nil)), cons(Z, nil)), X2) = W!49)))))))),
% 17.33/11.44      inference(bind,[status(th)],[])).
% 17.33/11.44  tff(45,plain,
% 17.33/11.44      (![Y: $i] : ((~ssItem(Y)) | ![Z: $i] : ((~ssItem(Z)) | ![X1: $i] : ((~ssList(X1)) | ![X2: $i] : ((Y = Z) | (~ssList(X2)) | (~(app(app(app(X1, cons(Y, nil)), cons(Z, nil)), X2) = W!49)))))) <=> ![Y: $i] : ((~ssItem(Y)) | ![Z: $i] : ((~ssItem(Z)) | ![X1: $i] : ((~ssList(X1)) | ![X2: $i] : ((Y = Z) | (~ssList(X2)) | (~(app(app(app(X1, cons(Y, nil)), cons(Z, nil)), X2) = W!49))))))),
% 17.33/11.44      inference(quant_intro,[status(thm)],[44])).
% 17.33/11.44  tff(46,plain,
% 17.33/11.44      (^[Y: $i] : rewrite(((~ssItem(Y)) | ![Z: $i] : ((~ssItem(Z)) | ![X1: $i] : ((~ssList(X1)) | ![X2: $i] : ((Y = Z) | (~ssList(X2)) | (~(app(app(app(X1, cons(Y, nil)), cons(Z, nil)), X2) = W!49)))))) <=> ((~ssItem(Y)) | ![Z: $i] : ((~ssItem(Z)) | ![X1: $i] : ((~ssList(X1)) | ![X2: $i] : ((Y = Z) | (~ssList(X2)) | (~(app(app(app(X1, cons(Y, nil)), cons(Z, nil)), X2) = W!49)))))))),
% 17.33/11.44      inference(bind,[status(th)],[])).
% 17.33/11.44  tff(47,plain,
% 17.33/11.44      (![Y: $i] : ((~ssItem(Y)) | ![Z: $i] : ((~ssItem(Z)) | ![X1: $i] : ((~ssList(X1)) | ![X2: $i] : ((Y = Z) | (~ssList(X2)) | (~(app(app(app(X1, cons(Y, nil)), cons(Z, nil)), X2) = W!49)))))) <=> ![Y: $i] : ((~ssItem(Y)) | ![Z: $i] : ((~ssItem(Z)) | ![X1: $i] : ((~ssList(X1)) | ![X2: $i] : ((Y = Z) | (~ssList(X2)) | (~(app(app(app(X1, cons(Y, nil)), cons(Z, nil)), X2) = W!49))))))),
% 17.33/11.44      inference(quant_intro,[status(thm)],[46])).
% 17.33/11.44  tff(48,plain,
% 17.33/11.44      (![Y: $i] : ((~ssItem(Y)) | ![Z: $i] : ((~ssItem(Z)) | ![X1: $i] : ((~ssList(X1)) | ![X2: $i] : ((Y = Z) | (~ssList(X2)) | (~(app(app(app(X1, cons(Y, nil)), cons(Z, nil)), X2) = W!49)))))) <=> ![Y: $i] : ((~ssItem(Y)) | ![Z: $i] : ((~ssItem(Z)) | ![X1: $i] : ((~ssList(X1)) | ![X2: $i] : ((Y = Z) | (~ssList(X2)) | (~(app(app(app(X1, cons(Y, nil)), cons(Z, nil)), X2) = W!49))))))),
% 17.33/11.44      inference(transitivity,[status(thm)],[47, 45])).
% 17.33/11.44  tff(49,plain,
% 17.33/11.44      (^[Y: $i] : rewrite(((~ssItem(Y)) | ![Z: $i] : ((~ssItem(Z)) | ![X1: $i] : ((~ssList(X1)) | ![X2: $i] : (~(ssList(X2) & (~(Y = Z)) & (app(app(app(X1, cons(Y, nil)), cons(Z, nil)), X2) = W!49)))))) <=> ((~ssItem(Y)) | ![Z: $i] : ((~ssItem(Z)) | ![X1: $i] : ((~ssList(X1)) | ![X2: $i] : ((Y = Z) | (~ssList(X2)) | (~(app(app(app(X1, cons(Y, nil)), cons(Z, nil)), X2) = W!49)))))))),
% 17.33/11.44      inference(bind,[status(th)],[])).
% 17.33/11.44  tff(50,plain,
% 17.33/11.44      (![Y: $i] : ((~ssItem(Y)) | ![Z: $i] : ((~ssItem(Z)) | ![X1: $i] : ((~ssList(X1)) | ![X2: $i] : (~(ssList(X2) & (~(Y = Z)) & (app(app(app(X1, cons(Y, nil)), cons(Z, nil)), X2) = W!49)))))) <=> ![Y: $i] : ((~ssItem(Y)) | ![Z: $i] : ((~ssItem(Z)) | ![X1: $i] : ((~ssList(X1)) | ![X2: $i] : ((Y = Z) | (~ssList(X2)) | (~(app(app(app(X1, cons(Y, nil)), cons(Z, nil)), X2) = W!49))))))),
% 17.33/11.44      inference(quant_intro,[status(thm)],[49])).
% 17.33/11.44  tff(51,plain,
% 17.33/11.44      (![Y: $i] : ((~ssItem(Y)) | ![Z: $i] : ((~ssItem(Z)) | ![X1: $i] : ((~ssList(X1)) | ![X2: $i] : (~(ssList(X2) & (~(Y = Z)) & (app(app(app(X1, cons(Y, nil)), cons(Z, nil)), X2) = W!49))))))),
% 17.33/11.44      inference(and_elim,[status(thm)],[38])).
% 17.33/11.44  tff(52,plain,
% 17.33/11.44      (![Y: $i] : ((~ssItem(Y)) | ![Z: $i] : ((~ssItem(Z)) | ![X1: $i] : ((~ssList(X1)) | ![X2: $i] : ((Y = Z) | (~ssList(X2)) | (~(app(app(app(X1, cons(Y, nil)), cons(Z, nil)), X2) = W!49))))))),
% 17.33/11.44      inference(modus_ponens,[status(thm)],[51, 50])).
% 17.33/11.44  tff(53,plain,
% 17.33/11.44      (![Y: $i] : ((~ssItem(Y)) | ![Z: $i] : ((~ssItem(Z)) | ![X1: $i] : ((~ssList(X1)) | ![X2: $i] : ((Y = Z) | (~ssList(X2)) | (~(app(app(app(X1, cons(Y, nil)), cons(Z, nil)), X2) = W!49))))))),
% 17.33/11.44      inference(modus_ponens,[status(thm)],[52, 48])).
% 17.33/11.44  tff(54,plain,
% 17.33/11.44      (((~![Y: $i] : ((~ssItem(Y)) | ![Z: $i] : ((~ssItem(Z)) | ![X1: $i] : ((~ssList(X1)) | ![X2: $i] : ((Y = Z) | (~ssList(X2)) | (~(app(app(app(X1, cons(Y, nil)), cons(Z, nil)), X2) = W!49))))))) | ((~ssItem(X3!51)) | ![Z: $i] : ((~ssItem(Z)) | ![X1: $i] : ((~ssList(X1)) | ![X2: $i] : ((~ssList(X2)) | (X3!51 = Z) | (~(app(app(app(X1, cons(X3!51, nil)), cons(Z, nil)), X2) = W!49))))))) <=> ((~![Y: $i] : ((~ssItem(Y)) | ![Z: $i] : ((~ssItem(Z)) | ![X1: $i] : ((~ssList(X1)) | ![X2: $i] : ((Y = Z) | (~ssList(X2)) | (~(app(app(app(X1, cons(Y, nil)), cons(Z, nil)), X2) = W!49))))))) | (~ssItem(X3!51)) | ![Z: $i] : ((~ssItem(Z)) | ![X1: $i] : ((~ssList(X1)) | ![X2: $i] : ((~ssList(X2)) | (X3!51 = Z) | (~(app(app(app(X1, cons(X3!51, nil)), cons(Z, nil)), X2) = W!49))))))),
% 17.33/11.44      inference(rewrite,[status(thm)],[])).
% 17.33/11.44  tff(55,plain,
% 17.33/11.44      (((~ssItem(X3!51)) | ![Z: $i] : ((~ssItem(Z)) | ![X1: $i] : ((~ssList(X1)) | ![X2: $i] : ((X3!51 = Z) | (~ssList(X2)) | (~(app(app(app(X1, cons(X3!51, nil)), cons(Z, nil)), X2) = W!49)))))) <=> ((~ssItem(X3!51)) | ![Z: $i] : ((~ssItem(Z)) | ![X1: $i] : ((~ssList(X1)) | ![X2: $i] : ((~ssList(X2)) | (X3!51 = Z) | (~(app(app(app(X1, cons(X3!51, nil)), cons(Z, nil)), X2) = W!49))))))),
% 17.33/11.44      inference(rewrite,[status(thm)],[])).
% 17.33/11.44  tff(56,plain,
% 17.33/11.44      (((~![Y: $i] : ((~ssItem(Y)) | ![Z: $i] : ((~ssItem(Z)) | ![X1: $i] : ((~ssList(X1)) | ![X2: $i] : ((Y = Z) | (~ssList(X2)) | (~(app(app(app(X1, cons(Y, nil)), cons(Z, nil)), X2) = W!49))))))) | ((~ssItem(X3!51)) | ![Z: $i] : ((~ssItem(Z)) | ![X1: $i] : ((~ssList(X1)) | ![X2: $i] : ((X3!51 = Z) | (~ssList(X2)) | (~(app(app(app(X1, cons(X3!51, nil)), cons(Z, nil)), X2) = W!49))))))) <=> ((~![Y: $i] : ((~ssItem(Y)) | ![Z: $i] : ((~ssItem(Z)) | ![X1: $i] : ((~ssList(X1)) | ![X2: $i] : ((Y = Z) | (~ssList(X2)) | (~(app(app(app(X1, cons(Y, nil)), cons(Z, nil)), X2) = W!49))))))) | ((~ssItem(X3!51)) | ![Z: $i] : ((~ssItem(Z)) | ![X1: $i] : ((~ssList(X1)) | ![X2: $i] : ((~ssList(X2)) | (X3!51 = Z) | (~(app(app(app(X1, cons(X3!51, nil)), cons(Z, nil)), X2) = W!49)))))))),
% 17.33/11.44      inference(monotonicity,[status(thm)],[55])).
% 17.33/11.44  tff(57,plain,
% 17.33/11.44      (((~![Y: $i] : ((~ssItem(Y)) | ![Z: $i] : ((~ssItem(Z)) | ![X1: $i] : ((~ssList(X1)) | ![X2: $i] : ((Y = Z) | (~ssList(X2)) | (~(app(app(app(X1, cons(Y, nil)), cons(Z, nil)), X2) = W!49))))))) | ((~ssItem(X3!51)) | ![Z: $i] : ((~ssItem(Z)) | ![X1: $i] : ((~ssList(X1)) | ![X2: $i] : ((X3!51 = Z) | (~ssList(X2)) | (~(app(app(app(X1, cons(X3!51, nil)), cons(Z, nil)), X2) = W!49))))))) <=> ((~![Y: $i] : ((~ssItem(Y)) | ![Z: $i] : ((~ssItem(Z)) | ![X1: $i] : ((~ssList(X1)) | ![X2: $i] : ((Y = Z) | (~ssList(X2)) | (~(app(app(app(X1, cons(Y, nil)), cons(Z, nil)), X2) = W!49))))))) | (~ssItem(X3!51)) | ![Z: $i] : ((~ssItem(Z)) | ![X1: $i] : ((~ssList(X1)) | ![X2: $i] : ((~ssList(X2)) | (X3!51 = Z) | (~(app(app(app(X1, cons(X3!51, nil)), cons(Z, nil)), X2) = W!49))))))),
% 17.33/11.44      inference(transitivity,[status(thm)],[56, 54])).
% 17.33/11.44  tff(58,plain,
% 17.33/11.44      ((~![Y: $i] : ((~ssItem(Y)) | ![Z: $i] : ((~ssItem(Z)) | ![X1: $i] : ((~ssList(X1)) | ![X2: $i] : ((Y = Z) | (~ssList(X2)) | (~(app(app(app(X1, cons(Y, nil)), cons(Z, nil)), X2) = W!49))))))) | ((~ssItem(X3!51)) | ![Z: $i] : ((~ssItem(Z)) | ![X1: $i] : ((~ssList(X1)) | ![X2: $i] : ((X3!51 = Z) | (~ssList(X2)) | (~(app(app(app(X1, cons(X3!51, nil)), cons(Z, nil)), X2) = W!49))))))),
% 17.33/11.44      inference(quant_inst,[status(thm)],[])).
% 17.33/11.44  tff(59,plain,
% 17.33/11.44      ((~![Y: $i] : ((~ssItem(Y)) | ![Z: $i] : ((~ssItem(Z)) | ![X1: $i] : ((~ssList(X1)) | ![X2: $i] : ((Y = Z) | (~ssList(X2)) | (~(app(app(app(X1, cons(Y, nil)), cons(Z, nil)), X2) = W!49))))))) | (~ssItem(X3!51)) | ![Z: $i] : ((~ssItem(Z)) | ![X1: $i] : ((~ssList(X1)) | ![X2: $i] : ((~ssList(X2)) | (X3!51 = Z) | (~(app(app(app(X1, cons(X3!51, nil)), cons(Z, nil)), X2) = W!49)))))),
% 17.33/11.44      inference(modus_ponens,[status(thm)],[58, 57])).
% 17.33/11.44  tff(60,plain,
% 17.33/11.44      (![Z: $i] : ((~ssItem(Z)) | ![X1: $i] : ((~ssList(X1)) | ![X2: $i] : ((~ssList(X2)) | (X3!51 = Z) | (~(app(app(app(X1, cons(X3!51, nil)), cons(Z, nil)), X2) = W!49)))))),
% 17.33/11.44      inference(unit_resolution,[status(thm)],[59, 53, 43])).
% 17.33/11.44  tff(61,plain,
% 17.33/11.44      (ssItem(X4!52)),
% 17.33/11.44      inference(and_elim,[status(thm)],[38])).
% 17.33/11.44  tff(62,plain,
% 17.33/11.44      (((~![Z: $i] : ((~ssItem(Z)) | ![X1: $i] : ((~ssList(X1)) | ![X2: $i] : ((~ssList(X2)) | (X3!51 = Z) | (~(app(app(app(X1, cons(X3!51, nil)), cons(Z, nil)), X2) = W!49)))))) | ((~ssItem(X4!52)) | ![X1: $i] : ((~ssList(X1)) | ![X2: $i] : ((~ssList(X2)) | (X3!51 = X4!52) | (~(app(app(app(X1, cons(X3!51, nil)), cons(X4!52, nil)), X2) = W!49)))))) <=> ((~![Z: $i] : ((~ssItem(Z)) | ![X1: $i] : ((~ssList(X1)) | ![X2: $i] : ((~ssList(X2)) | (X3!51 = Z) | (~(app(app(app(X1, cons(X3!51, nil)), cons(Z, nil)), X2) = W!49)))))) | (~ssItem(X4!52)) | ![X1: $i] : ((~ssList(X1)) | ![X2: $i] : ((~ssList(X2)) | (X3!51 = X4!52) | (~(app(app(app(X1, cons(X3!51, nil)), cons(X4!52, nil)), X2) = W!49)))))),
% 17.33/11.44      inference(rewrite,[status(thm)],[])).
% 17.33/11.44  tff(63,plain,
% 17.33/11.44      ((~![Z: $i] : ((~ssItem(Z)) | ![X1: $i] : ((~ssList(X1)) | ![X2: $i] : ((~ssList(X2)) | (X3!51 = Z) | (~(app(app(app(X1, cons(X3!51, nil)), cons(Z, nil)), X2) = W!49)))))) | ((~ssItem(X4!52)) | ![X1: $i] : ((~ssList(X1)) | ![X2: $i] : ((~ssList(X2)) | (X3!51 = X4!52) | (~(app(app(app(X1, cons(X3!51, nil)), cons(X4!52, nil)), X2) = W!49)))))),
% 17.33/11.45      inference(quant_inst,[status(thm)],[])).
% 17.33/11.45  tff(64,plain,
% 17.33/11.45      ((~![Z: $i] : ((~ssItem(Z)) | ![X1: $i] : ((~ssList(X1)) | ![X2: $i] : ((~ssList(X2)) | (X3!51 = Z) | (~(app(app(app(X1, cons(X3!51, nil)), cons(Z, nil)), X2) = W!49)))))) | (~ssItem(X4!52)) | ![X1: $i] : ((~ssList(X1)) | ![X2: $i] : ((~ssList(X2)) | (X3!51 = X4!52) | (~(app(app(app(X1, cons(X3!51, nil)), cons(X4!52, nil)), X2) = W!49))))),
% 17.33/11.45      inference(modus_ponens,[status(thm)],[63, 62])).
% 17.33/11.45  tff(65,plain,
% 17.33/11.45      (![X1: $i] : ((~ssList(X1)) | ![X2: $i] : ((~ssList(X2)) | (X3!51 = X4!52) | (~(app(app(app(X1, cons(X3!51, nil)), cons(X4!52, nil)), X2) = W!49))))),
% 17.33/11.45      inference(unit_resolution,[status(thm)],[64, 61, 60])).
% 17.33/11.45  tff(66,plain,
% 17.33/11.45      (ssList(X5!53)),
% 17.33/11.45      inference(and_elim,[status(thm)],[38])).
% 17.33/11.45  tff(67,plain,
% 17.33/11.45      (((~![X1: $i] : ((~ssList(X1)) | ![X2: $i] : ((~ssList(X2)) | (X3!51 = X4!52) | (~(app(app(app(X1, cons(X3!51, nil)), cons(X4!52, nil)), X2) = W!49))))) | ((~ssList(X5!53)) | ![X2: $i] : ((~ssList(X2)) | (X3!51 = X4!52) | (~(app(app(app(X5!53, cons(X3!51, nil)), cons(X4!52, nil)), X2) = W!49))))) <=> ((~![X1: $i] : ((~ssList(X1)) | ![X2: $i] : ((~ssList(X2)) | (X3!51 = X4!52) | (~(app(app(app(X1, cons(X3!51, nil)), cons(X4!52, nil)), X2) = W!49))))) | (~ssList(X5!53)) | ![X2: $i] : ((~ssList(X2)) | (X3!51 = X4!52) | (~(app(app(app(X5!53, cons(X3!51, nil)), cons(X4!52, nil)), X2) = W!49))))),
% 17.33/11.45      inference(rewrite,[status(thm)],[])).
% 17.33/11.45  tff(68,plain,
% 17.33/11.45      ((~![X1: $i] : ((~ssList(X1)) | ![X2: $i] : ((~ssList(X2)) | (X3!51 = X4!52) | (~(app(app(app(X1, cons(X3!51, nil)), cons(X4!52, nil)), X2) = W!49))))) | ((~ssList(X5!53)) | ![X2: $i] : ((~ssList(X2)) | (X3!51 = X4!52) | (~(app(app(app(X5!53, cons(X3!51, nil)), cons(X4!52, nil)), X2) = W!49))))),
% 17.33/11.45      inference(quant_inst,[status(thm)],[])).
% 17.33/11.45  tff(69,plain,
% 17.33/11.45      ((~![X1: $i] : ((~ssList(X1)) | ![X2: $i] : ((~ssList(X2)) | (X3!51 = X4!52) | (~(app(app(app(X1, cons(X3!51, nil)), cons(X4!52, nil)), X2) = W!49))))) | (~ssList(X5!53)) | ![X2: $i] : ((~ssList(X2)) | (X3!51 = X4!52) | (~(app(app(app(X5!53, cons(X3!51, nil)), cons(X4!52, nil)), X2) = W!49)))),
% 17.33/11.45      inference(modus_ponens,[status(thm)],[68, 67])).
% 17.33/11.45  tff(70,plain,
% 17.33/11.45      (![X2: $i] : ((~ssList(X2)) | (X3!51 = X4!52) | (~(app(app(app(X5!53, cons(X3!51, nil)), cons(X4!52, nil)), X2) = W!49)))),
% 17.33/11.45      inference(unit_resolution,[status(thm)],[69, 66, 65])).
% 17.33/11.45  tff(71,plain,
% 17.33/11.45      (ssList(X6!54)),
% 17.33/11.45      inference(or_elim,[status(thm)],[40])).
% 17.33/11.45  tff(72,plain,
% 17.33/11.45      (~(X3!51 = X4!52)),
% 17.33/11.45      inference(or_elim,[status(thm)],[40])).
% 17.33/11.45  tff(73,plain,
% 17.33/11.45      (((~![X2: $i] : ((~ssList(X2)) | (X3!51 = X4!52) | (~(app(app(app(X5!53, cons(X3!51, nil)), cons(X4!52, nil)), X2) = W!49)))) | ((X3!51 = X4!52) | (~ssList(X6!54)) | (~(app(app(app(X5!53, cons(X3!51, nil)), cons(X4!52, nil)), X6!54) = W!49)))) <=> ((~![X2: $i] : ((~ssList(X2)) | (X3!51 = X4!52) | (~(app(app(app(X5!53, cons(X3!51, nil)), cons(X4!52, nil)), X2) = W!49)))) | (X3!51 = X4!52) | (~ssList(X6!54)) | (~(app(app(app(X5!53, cons(X3!51, nil)), cons(X4!52, nil)), X6!54) = W!49)))),
% 17.33/11.45      inference(rewrite,[status(thm)],[])).
% 17.33/11.45  tff(74,plain,
% 17.33/11.45      (((~ssList(X6!54)) | (X3!51 = X4!52) | (~(app(app(app(X5!53, cons(X3!51, nil)), cons(X4!52, nil)), X6!54) = W!49))) <=> ((X3!51 = X4!52) | (~ssList(X6!54)) | (~(app(app(app(X5!53, cons(X3!51, nil)), cons(X4!52, nil)), X6!54) = W!49)))),
% 17.33/11.45      inference(rewrite,[status(thm)],[])).
% 17.33/11.45  tff(75,plain,
% 17.33/11.45      (((~![X2: $i] : ((~ssList(X2)) | (X3!51 = X4!52) | (~(app(app(app(X5!53, cons(X3!51, nil)), cons(X4!52, nil)), X2) = W!49)))) | ((~ssList(X6!54)) | (X3!51 = X4!52) | (~(app(app(app(X5!53, cons(X3!51, nil)), cons(X4!52, nil)), X6!54) = W!49)))) <=> ((~![X2: $i] : ((~ssList(X2)) | (X3!51 = X4!52) | (~(app(app(app(X5!53, cons(X3!51, nil)), cons(X4!52, nil)), X2) = W!49)))) | ((X3!51 = X4!52) | (~ssList(X6!54)) | (~(app(app(app(X5!53, cons(X3!51, nil)), cons(X4!52, nil)), X6!54) = W!49))))),
% 17.33/11.49      inference(monotonicity,[status(thm)],[74])).
% 17.33/11.49  tff(76,plain,
% 17.33/11.49      (((~![X2: $i] : ((~ssList(X2)) | (X3!51 = X4!52) | (~(app(app(app(X5!53, cons(X3!51, nil)), cons(X4!52, nil)), X2) = W!49)))) | ((~ssList(X6!54)) | (X3!51 = X4!52) | (~(app(app(app(X5!53, cons(X3!51, nil)), cons(X4!52, nil)), X6!54) = W!49)))) <=> ((~![X2: $i] : ((~ssList(X2)) | (X3!51 = X4!52) | (~(app(app(app(X5!53, cons(X3!51, nil)), cons(X4!52, nil)), X2) = W!49)))) | (X3!51 = X4!52) | (~ssList(X6!54)) | (~(app(app(app(X5!53, cons(X3!51, nil)), cons(X4!52, nil)), X6!54) = W!49)))),
% 17.33/11.49      inference(transitivity,[status(thm)],[75, 73])).
% 17.33/11.49  tff(77,plain,
% 17.33/11.49      ((~![X2: $i] : ((~ssList(X2)) | (X3!51 = X4!52) | (~(app(app(app(X5!53, cons(X3!51, nil)), cons(X4!52, nil)), X2) = W!49)))) | ((~ssList(X6!54)) | (X3!51 = X4!52) | (~(app(app(app(X5!53, cons(X3!51, nil)), cons(X4!52, nil)), X6!54) = W!49)))),
% 17.33/11.49      inference(quant_inst,[status(thm)],[])).
% 17.33/11.49  tff(78,plain,
% 17.33/11.49      ((~![X2: $i] : ((~ssList(X2)) | (X3!51 = X4!52) | (~(app(app(app(X5!53, cons(X3!51, nil)), cons(X4!52, nil)), X2) = W!49)))) | (X3!51 = X4!52) | (~ssList(X6!54)) | (~(app(app(app(X5!53, cons(X3!51, nil)), cons(X4!52, nil)), X6!54) = W!49))),
% 17.33/11.49      inference(modus_ponens,[status(thm)],[77, 76])).
% 17.33/11.49  tff(79,plain,
% 17.33/11.49      ($false),
% 17.33/11.49      inference(unit_resolution,[status(thm)],[78, 72, 71, 70, 42])).
% 17.33/11.49  % SZS output end Proof
%------------------------------------------------------------------------------