TSTP Solution File: SWC055-1 by Zipperpin---2.1.9999

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : Zipperpin---2.1.9999
% Problem  : SWC055-1 : TPTP v8.1.2. Released v2.4.0.
% Transfm  : NO INFORMATION
% Format   : NO INFORMATION
% Command  : python3 /export/starexec/sandbox2/solver/bin/portfolio.lams.parallel.py %s %d /export/starexec/sandbox2/tmp/tmp.O2iuqUCtWw true

% Computer : n007.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 : Thu Aug 31 21:28:49 EDT 2023

% Result   : Unsatisfiable 89.10s 13.34s
% Output   : Refutation 89.10s
% Verified : 
% SZS Type : -

% Comments : 
%------------------------------------------------------------------------------
%----WARNING: Could not form TPTP format derivation
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.03/0.12  % Problem  : SWC055-1 : TPTP v8.1.2. Released v2.4.0.
% 0.03/0.13  % Command  : python3 /export/starexec/sandbox2/solver/bin/portfolio.lams.parallel.py %s %d /export/starexec/sandbox2/tmp/tmp.O2iuqUCtWw true
% 0.13/0.34  % Computer : n007.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 : Mon Aug 28 17:00:43 EDT 2023
% 0.13/0.34  % CPUTime  : 
% 0.13/0.34  % Running portfolio for 300 s
% 0.13/0.34  % File         : /export/starexec/sandbox2/benchmark/theBenchmark.p
% 0.13/0.34  % Number of cores: 8
% 0.13/0.35  % Python version: Python 3.6.8
% 0.13/0.35  % Running in FO mode
% 0.54/0.66  % Total configuration time : 435
% 0.54/0.66  % Estimated wc time : 1092
% 0.54/0.66  % Estimated cpu time (7 cpus) : 156.0
% 0.54/0.69  % /export/starexec/sandbox2/solver/bin/fo/fo6_bce.sh running for 75s
% 0.54/0.72  % /export/starexec/sandbox2/solver/bin/fo/fo3_bce.sh running for 75s
% 0.54/0.73  % /export/starexec/sandbox2/solver/bin/fo/fo1_av.sh running for 75s
% 0.54/0.75  % /export/starexec/sandbox2/solver/bin/fo/fo7.sh running for 63s
% 0.54/0.75  % /export/starexec/sandbox2/solver/bin/fo/fo13.sh running for 50s
% 0.54/0.75  % /export/starexec/sandbox2/solver/bin/fo/fo5.sh running for 50s
% 0.54/0.75  % /export/starexec/sandbox2/solver/bin/fo/fo4.sh running for 50s
% 89.10/13.34  % Solved by fo/fo6_bce.sh.
% 89.10/13.34  % BCE start: 203
% 89.10/13.34  % BCE eliminated: 0
% 89.10/13.34  % PE start: 203
% 89.10/13.34  logic: eq
% 89.10/13.34  % PE eliminated: 4
% 89.10/13.34  % done 4871 iterations in 12.626s
% 89.10/13.34  % SZS status Theorem for '/export/starexec/sandbox2/benchmark/theBenchmark.p'
% 89.10/13.34  % SZS output start Refutation
% 89.10/13.34  thf(nil_type, type, nil: $i).
% 89.10/13.34  thf(frontsegP_type, type, frontsegP: $i > $i > $o).
% 89.10/13.34  thf(cons_type, type, cons: $i > $i > $i).
% 89.10/13.34  thf(sk2_type, type, sk2: $i).
% 89.10/13.34  thf(skaf45_type, type, skaf45: $i > $i > $i).
% 89.10/13.34  thf(sk4_type, type, sk4: $i).
% 89.10/13.34  thf(duplicatefreeP_type, type, duplicatefreeP: $i > $o).
% 89.10/13.34  thf(skaf42_type, type, skaf42: $i > $i > $i).
% 89.10/13.34  thf(tl_type, type, tl: $i > $i).
% 89.10/13.34  thf(memberP_type, type, memberP: $i > $i > $o).
% 89.10/13.34  thf(hd_type, type, hd: $i > $i).
% 89.10/13.34  thf(ssItem_type, type, ssItem: $i > $o).
% 89.10/13.34  thf(skaf43_type, type, skaf43: $i > $i > $i).
% 89.10/13.34  thf(sk5_type, type, sk5: $i).
% 89.10/13.34  thf(sk3_type, type, sk3: $i).
% 89.10/13.34  thf(neq_type, type, neq: $i > $i > $o).
% 89.10/13.34  thf(app_type, type, app: $i > $i > $i).
% 89.10/13.34  thf(ssList_type, type, ssList: $i > $o).
% 89.10/13.34  thf(sk1_type, type, sk1: $i).
% 89.10/13.34  thf(segmentP_type, type, segmentP: $i > $i > $o).
% 89.10/13.35  thf(co1_13, conjecture,
% 89.10/13.35    (~( ( ( nil ) = ( sk3 ) ) | ( memberP @ sk4 @ sk5 ) ))).
% 89.10/13.35  thf(zf_stmt_0, negated_conjecture,
% 89.10/13.35    (( ( nil ) = ( sk3 ) ) | ( memberP @ sk4 @ sk5 )),
% 89.10/13.35    inference('cnf.neg', [status(esa)], [co1_13])).
% 89.10/13.35  thf(zip_derived_cl197, plain, ((((nil) = (sk3)) |  (memberP @ sk4 @ sk5))),
% 89.10/13.35      inference('cnf', [status(esa)], [zf_stmt_0])).
% 89.10/13.35  thf(co1_6, conjecture, (( sk1 ) != ( sk3 ))).
% 89.10/13.35  thf(zf_stmt_1, negated_conjecture, (( sk1 ) = ( sk3 )),
% 89.10/13.35    inference('cnf.neg', [status(esa)], [co1_6])).
% 89.10/13.35  thf(zip_derived_cl190, plain, (((sk1) = (sk3))),
% 89.10/13.35      inference('cnf', [status(esa)], [zf_stmt_1])).
% 89.10/13.35  thf(co1_5, conjecture, (( sk2 ) != ( sk4 ))).
% 89.10/13.35  thf(zf_stmt_2, negated_conjecture, (( sk2 ) = ( sk4 )),
% 89.10/13.35    inference('cnf.neg', [status(esa)], [co1_5])).
% 89.10/13.35  thf(zip_derived_cl189, plain, (((sk2) = (sk4))),
% 89.10/13.35      inference('cnf', [status(esa)], [zf_stmt_2])).
% 89.10/13.35  thf(zip_derived_cl1472, plain, ((((nil) = (sk1)) |  (memberP @ sk2 @ sk5))),
% 89.10/13.35      inference('demod', [status(thm)],
% 89.10/13.35                [zip_derived_cl197, zip_derived_cl190, zip_derived_cl189])).
% 89.10/13.35  thf(co1_17, conjecture, (~( ( neq @ sk2 @ nil ) | ( ( nil ) != ( sk1 ) ) ))).
% 89.10/13.35  thf(zf_stmt_3, negated_conjecture,
% 89.10/13.35    (( neq @ sk2 @ nil ) | ( ( nil ) != ( sk1 ) )),
% 89.10/13.35    inference('cnf.neg', [status(esa)], [co1_17])).
% 89.10/13.35  thf(zip_derived_cl201, plain, (( (neq @ sk2 @ nil) | ((nil) != (sk1)))),
% 89.10/13.35      inference('cnf', [status(esa)], [zf_stmt_3])).
% 89.10/13.35  thf(clause115, axiom,
% 89.10/13.35    (( ( U ) != ( V ) ) | ( ~( neq @ U @ V ) ) | ( ~( ssList @ V ) ) | 
% 89.10/13.35     ( ~( ssList @ U ) ))).
% 89.10/13.35  thf(zip_derived_cl114, plain,
% 89.10/13.35      (![X0 : $i, X1 : $i]:
% 89.10/13.35         (((X1) != (X0))
% 89.10/13.35          | ~ (neq @ X1 @ X0)
% 89.10/13.35          | ~ (ssList @ X0)
% 89.10/13.35          | ~ (ssList @ X1))),
% 89.10/13.35      inference('cnf', [status(esa)], [clause115])).
% 89.10/13.35  thf(zip_derived_cl1444, plain,
% 89.10/13.35      ((((nil) != (sk1))
% 89.10/13.35        | ~ (ssList @ sk2)
% 89.10/13.35        | ~ (ssList @ nil)
% 89.10/13.35        | ((sk2) != (nil)))),
% 89.10/13.35      inference('dp-resolution', [status(thm)],
% 89.10/13.35                [zip_derived_cl201, zip_derived_cl114])).
% 89.10/13.35  thf(co1_2, conjecture, (~( ssList @ sk2 ))).
% 89.10/13.35  thf(zf_stmt_4, negated_conjecture, (ssList @ sk2),
% 89.10/13.35    inference('cnf.neg', [status(esa)], [co1_2])).
% 89.10/13.35  thf(zip_derived_cl186, plain, ( (ssList @ sk2)),
% 89.10/13.35      inference('cnf', [status(esa)], [zf_stmt_4])).
% 89.10/13.35  thf(clause8, axiom, (ssList @ nil)).
% 89.10/13.35  thf(zip_derived_cl7, plain, ( (ssList @ nil)),
% 89.10/13.35      inference('cnf', [status(esa)], [clause8])).
% 89.10/13.35  thf(zip_derived_cl1464, plain, ((((nil) != (sk1)) | ((sk2) != (nil)))),
% 89.10/13.35      inference('demod', [status(thm)],
% 89.10/13.35                [zip_derived_cl1444, zip_derived_cl186, zip_derived_cl7])).
% 89.10/13.35  thf(co1_9, conjecture,
% 89.10/13.35    (~( ( ( nil ) = ( sk4 ) ) | ( ( cons @ sk5 @ nil ) = ( sk3 ) ) ))).
% 89.10/13.35  thf(zf_stmt_5, negated_conjecture,
% 89.10/13.35    (( ( nil ) = ( sk4 ) ) | ( ( cons @ sk5 @ nil ) = ( sk3 ) )),
% 89.10/13.35    inference('cnf.neg', [status(esa)], [co1_9])).
% 89.10/13.35  thf(zip_derived_cl193, plain,
% 89.10/13.35      ((((nil) = (sk4)) | ((cons @ sk5 @ nil) = (sk3)))),
% 89.10/13.35      inference('cnf', [status(esa)], [zf_stmt_5])).
% 89.10/13.35  thf(zip_derived_cl189, plain, (((sk2) = (sk4))),
% 89.10/13.35      inference('cnf', [status(esa)], [zf_stmt_2])).
% 89.10/13.35  thf(zip_derived_cl190, plain, (((sk1) = (sk3))),
% 89.10/13.35      inference('cnf', [status(esa)], [zf_stmt_1])).
% 89.10/13.35  thf(zip_derived_cl1452, plain,
% 89.10/13.35      ((((nil) = (sk2)) | ((cons @ sk5 @ nil) = (sk1)))),
% 89.10/13.35      inference('demod', [status(thm)],
% 89.10/13.35                [zip_derived_cl193, zip_derived_cl189, zip_derived_cl190])).
% 89.10/13.35  thf(clause99, axiom,
% 89.10/13.35    (( ( cons @ U @ V ) != ( V ) ) | ( ~( ssItem @ U ) ) | ( ~( ssList @ V ) ))).
% 89.10/13.35  thf(zip_derived_cl98, plain,
% 89.10/13.35      (![X0 : $i, X1 : $i]:
% 89.10/13.35         (((cons @ X1 @ X0) != (X0)) | ~ (ssItem @ X1) | ~ (ssList @ X0))),
% 89.10/13.35      inference('cnf', [status(esa)], [clause99])).
% 89.10/13.35  thf(zip_derived_cl1456, plain,
% 89.10/13.35      ((((nil) = (sk2))
% 89.10/13.35        | ((sk1) != (nil))
% 89.10/13.35        | ~ (ssItem @ sk5)
% 89.10/13.35        | ~ (ssList @ nil))),
% 89.10/13.35      inference('s_sup-', [status(thm)], [zip_derived_cl1452, zip_derived_cl98])).
% 89.10/13.35  thf(zip_derived_cl7, plain, ( (ssList @ nil)),
% 89.10/13.35      inference('cnf', [status(esa)], [clause8])).
% 89.10/13.35  thf(zip_derived_cl1458, plain,
% 89.10/13.35      ((((nil) = (sk2)) | ((sk1) != (nil)) | ~ (ssItem @ sk5))),
% 89.10/13.35      inference('demod', [status(thm)], [zip_derived_cl1456, zip_derived_cl7])).
% 89.10/13.35  thf(co1_7, conjecture, (~( ( ( nil ) = ( sk4 ) ) | ( ssItem @ sk5 ) ))).
% 89.10/13.35  thf(zf_stmt_6, negated_conjecture,
% 89.10/13.35    (( ( nil ) = ( sk4 ) ) | ( ssItem @ sk5 )),
% 89.10/13.35    inference('cnf.neg', [status(esa)], [co1_7])).
% 89.10/13.35  thf(zip_derived_cl191, plain, ((((nil) = (sk4)) |  (ssItem @ sk5))),
% 89.10/13.35      inference('cnf', [status(esa)], [zf_stmt_6])).
% 89.10/13.35  thf(zip_derived_cl189, plain, (((sk2) = (sk4))),
% 89.10/13.35      inference('cnf', [status(esa)], [zf_stmt_2])).
% 89.10/13.35  thf(zip_derived_cl1462, plain, ((((nil) = (sk2)) |  (ssItem @ sk5))),
% 89.10/13.35      inference('demod', [status(thm)], [zip_derived_cl191, zip_derived_cl189])).
% 89.10/13.35  thf(zip_derived_cl1463, plain, ((((sk1) != (nil)) | ((nil) = (sk2)))),
% 89.10/13.35      inference('clc', [status(thm)], [zip_derived_cl1458, zip_derived_cl1462])).
% 89.10/13.35  thf(zip_derived_cl1465, plain, (((nil) != (sk1))),
% 89.10/13.35      inference('clc', [status(thm)], [zip_derived_cl1464, zip_derived_cl1463])).
% 89.10/13.35  thf(zip_derived_cl1473, plain, ( (memberP @ sk2 @ sk5)),
% 89.10/13.35      inference('simplify_reflect-', [status(thm)],
% 89.10/13.35                [zip_derived_cl1472, zip_derived_cl1465])).
% 89.10/13.35  thf(clause169, axiom,
% 89.10/13.35    (( ~( memberP @ U @ V ) ) | ( ~( ssItem @ V ) ) | ( ~( ssList @ U ) ) | 
% 89.10/13.35     ( ( app @ ( skaf42 @ U @ V ) @ ( cons @ V @ ( skaf43 @ V @ U ) ) ) = ( U ) ))).
% 89.10/13.35  thf(zip_derived_cl168, plain,
% 89.10/13.35      (![X0 : $i, X1 : $i]:
% 89.10/13.35         (~ (memberP @ X0 @ X1)
% 89.10/13.35          | ~ (ssItem @ X1)
% 89.10/13.35          | ~ (ssList @ X0)
% 89.10/13.35          | ((app @ (skaf42 @ X0 @ X1) @ (cons @ X1 @ (skaf43 @ X1 @ X0)))
% 89.10/13.35              = (X0)))),
% 89.10/13.35      inference('cnf', [status(esa)], [clause169])).
% 89.10/13.35  thf(clause85, axiom,
% 89.10/13.35    (( ~( ssList @ U ) ) | ( ~( ssList @ V ) ) | ( ssList @ ( app @ V @ U ) ))).
% 89.10/13.35  thf(zip_derived_cl84, plain,
% 89.10/13.35      (![X0 : $i, X1 : $i]:
% 89.10/13.35         (~ (ssList @ X0) | ~ (ssList @ X1) |  (ssList @ (app @ X1 @ X0)))),
% 89.10/13.35      inference('cnf', [status(esa)], [clause85])).
% 89.10/13.35  thf(co1_12, conjecture,
% 89.10/13.35    (~( ( ( nil ) = ( sk3 ) ) | ( ( cons @ sk5 @ nil ) = ( sk3 ) ) ))).
% 89.10/13.35  thf(zf_stmt_7, negated_conjecture,
% 89.10/13.35    (( ( nil ) = ( sk3 ) ) | ( ( cons @ sk5 @ nil ) = ( sk3 ) )),
% 89.10/13.35    inference('cnf.neg', [status(esa)], [co1_12])).
% 89.10/13.35  thf(zip_derived_cl196, plain,
% 89.10/13.35      ((((nil) = (sk3)) | ((cons @ sk5 @ nil) = (sk3)))),
% 89.10/13.35      inference('cnf', [status(esa)], [zf_stmt_7])).
% 89.10/13.35  thf(zip_derived_cl190, plain, (((sk1) = (sk3))),
% 89.10/13.35      inference('cnf', [status(esa)], [zf_stmt_1])).
% 89.10/13.35  thf(zip_derived_cl190, plain, (((sk1) = (sk3))),
% 89.10/13.35      inference('cnf', [status(esa)], [zf_stmt_1])).
% 89.10/13.35  thf(zip_derived_cl1453, plain,
% 89.10/13.35      ((((nil) = (sk1)) | ((cons @ sk5 @ nil) = (sk1)))),
% 89.10/13.35      inference('demod', [status(thm)],
% 89.10/13.35                [zip_derived_cl196, zip_derived_cl190, zip_derived_cl190])).
% 89.10/13.35  thf(clause96, axiom,
% 89.10/13.35    (( ~( ssItem @ U ) ) | ( ~( ssList @ V ) ) | 
% 89.10/13.35     ( ( tl @ ( cons @ U @ V ) ) = ( V ) ))).
% 89.10/13.35  thf(zip_derived_cl95, plain,
% 89.10/13.35      (![X0 : $i, X1 : $i]:
% 89.10/13.35         (~ (ssItem @ X0) | ~ (ssList @ X1) | ((tl @ (cons @ X0 @ X1)) = (X1)))),
% 89.10/13.35      inference('cnf', [status(esa)], [clause96])).
% 89.10/13.35  thf(zip_derived_cl1602, plain,
% 89.10/13.35      ((((nil) = (sk1))
% 89.10/13.35        | ~ (ssItem @ sk5)
% 89.10/13.35        | ~ (ssList @ nil)
% 89.10/13.35        | ((tl @ sk1) = (nil)))),
% 89.10/13.35      inference('s_sup+', [status(thm)], [zip_derived_cl1453, zip_derived_cl95])).
% 89.10/13.35  thf(co1_8, conjecture, (~( ( ( nil ) = ( sk3 ) ) | ( ssItem @ sk5 ) ))).
% 89.10/13.35  thf(zf_stmt_8, negated_conjecture,
% 89.10/13.35    (( ( nil ) = ( sk3 ) ) | ( ssItem @ sk5 )),
% 89.10/13.35    inference('cnf.neg', [status(esa)], [co1_8])).
% 89.10/13.35  thf(zip_derived_cl192, plain, ((((nil) = (sk3)) |  (ssItem @ sk5))),
% 89.10/13.35      inference('cnf', [status(esa)], [zf_stmt_8])).
% 89.10/13.35  thf(zip_derived_cl190, plain, (((sk1) = (sk3))),
% 89.10/13.35      inference('cnf', [status(esa)], [zf_stmt_1])).
% 89.10/13.35  thf(zip_derived_cl1469, plain, ((((nil) = (sk1)) |  (ssItem @ sk5))),
% 89.10/13.35      inference('demod', [status(thm)], [zip_derived_cl192, zip_derived_cl190])).
% 89.10/13.35  thf(zip_derived_cl1465, plain, (((nil) != (sk1))),
% 89.10/13.35      inference('clc', [status(thm)], [zip_derived_cl1464, zip_derived_cl1463])).
% 89.10/13.35  thf(zip_derived_cl1470, plain, ( (ssItem @ sk5)),
% 89.10/13.35      inference('simplify_reflect-', [status(thm)],
% 89.10/13.35                [zip_derived_cl1469, zip_derived_cl1465])).
% 89.10/13.35  thf(zip_derived_cl7, plain, ( (ssList @ nil)),
% 89.10/13.35      inference('cnf', [status(esa)], [clause8])).
% 89.10/13.35  thf(zip_derived_cl1604, plain, ((((nil) = (sk1)) | ((tl @ sk1) = (nil)))),
% 89.10/13.35      inference('demod', [status(thm)],
% 89.10/13.35                [zip_derived_cl1602, zip_derived_cl1470, zip_derived_cl7])).
% 89.10/13.35  thf(zip_derived_cl1465, plain, (((nil) != (sk1))),
% 89.10/13.35      inference('clc', [status(thm)], [zip_derived_cl1464, zip_derived_cl1463])).
% 89.10/13.35  thf(zip_derived_cl1605, plain, (((tl @ sk1) = (nil))),
% 89.10/13.35      inference('simplify_reflect-', [status(thm)],
% 89.10/13.35                [zip_derived_cl1604, zip_derived_cl1465])).
% 89.10/13.35  thf(clause104, axiom,
% 89.10/13.35    (( ~( ssList @ U ) ) | ( ( cons @ ( hd @ U ) @ ( tl @ U ) ) = ( U ) ) | 
% 89.10/13.35     ( ( nil ) = ( U ) ))).
% 89.10/13.35  thf(zip_derived_cl103, plain,
% 89.10/13.35      (![X0 : $i]:
% 89.10/13.35         (~ (ssList @ X0)
% 89.10/13.35          | ((cons @ (hd @ X0) @ (tl @ X0)) = (X0))
% 89.10/13.35          | ((nil) = (X0)))),
% 89.10/13.35      inference('cnf', [status(esa)], [clause104])).
% 89.10/13.35  thf(zip_derived_cl1607, plain,
% 89.10/13.35      ((~ (ssList @ sk1)
% 89.10/13.35        | ((cons @ (hd @ sk1) @ nil) = (sk1))
% 89.10/13.35        | ((nil) = (sk1)))),
% 89.10/13.35      inference('s_sup+', [status(thm)],
% 89.10/13.35                [zip_derived_cl1605, zip_derived_cl103])).
% 89.10/13.35  thf(co1_1, conjecture, (~( ssList @ sk1 ))).
% 89.10/13.35  thf(zf_stmt_9, negated_conjecture, (ssList @ sk1),
% 89.10/13.35    inference('cnf.neg', [status(esa)], [co1_1])).
% 89.10/13.35  thf(zip_derived_cl185, plain, ( (ssList @ sk1)),
% 89.10/13.35      inference('cnf', [status(esa)], [zf_stmt_9])).
% 89.10/13.35  thf(zip_derived_cl1610, plain,
% 89.10/13.35      ((((cons @ (hd @ sk1) @ nil) = (sk1)) | ((nil) = (sk1)))),
% 89.10/13.35      inference('demod', [status(thm)], [zip_derived_cl1607, zip_derived_cl185])).
% 89.10/13.35  thf(zip_derived_cl1465, plain, (((nil) != (sk1))),
% 89.10/13.35      inference('clc', [status(thm)], [zip_derived_cl1464, zip_derived_cl1463])).
% 89.10/13.35  thf(zip_derived_cl1611, plain, (((cons @ (hd @ sk1) @ nil) = (sk1))),
% 89.10/13.35      inference('simplify_reflect-', [status(thm)],
% 89.10/13.35                [zip_derived_cl1610, zip_derived_cl1465])).
% 89.10/13.35  thf(zip_derived_cl1453, plain,
% 89.10/13.35      ((((nil) = (sk1)) | ((cons @ sk5 @ nil) = (sk1)))),
% 89.10/13.35      inference('demod', [status(thm)],
% 89.10/13.35                [zip_derived_cl196, zip_derived_cl190, zip_derived_cl190])).
% 89.10/13.35  thf(clause97, axiom,
% 89.10/13.35    (( ~( ssItem @ U ) ) | ( ~( ssList @ V ) ) | 
% 89.10/13.35     ( ( hd @ ( cons @ U @ V ) ) = ( U ) ))).
% 89.10/13.35  thf(zip_derived_cl96, plain,
% 89.10/13.35      (![X0 : $i, X1 : $i]:
% 89.10/13.35         (~ (ssItem @ X0) | ~ (ssList @ X1) | ((hd @ (cons @ X0 @ X1)) = (X0)))),
% 89.10/13.35      inference('cnf', [status(esa)], [clause97])).
% 89.10/13.35  thf(zip_derived_cl1632, plain,
% 89.10/13.35      ((((nil) = (sk1))
% 89.10/13.35        | ~ (ssItem @ sk5)
% 89.10/13.35        | ~ (ssList @ nil)
% 89.10/13.35        | ((hd @ sk1) = (sk5)))),
% 89.10/13.35      inference('s_sup+', [status(thm)], [zip_derived_cl1453, zip_derived_cl96])).
% 89.10/13.35  thf(zip_derived_cl1470, plain, ( (ssItem @ sk5)),
% 89.10/13.35      inference('simplify_reflect-', [status(thm)],
% 89.10/13.35                [zip_derived_cl1469, zip_derived_cl1465])).
% 89.10/13.35  thf(zip_derived_cl7, plain, ( (ssList @ nil)),
% 89.10/13.35      inference('cnf', [status(esa)], [clause8])).
% 89.10/13.35  thf(zip_derived_cl1635, plain, ((((nil) = (sk1)) | ((hd @ sk1) = (sk5)))),
% 89.10/13.35      inference('demod', [status(thm)],
% 89.10/13.35                [zip_derived_cl1632, zip_derived_cl1470, zip_derived_cl7])).
% 89.10/13.35  thf(zip_derived_cl1465, plain, (((nil) != (sk1))),
% 89.10/13.35      inference('clc', [status(thm)], [zip_derived_cl1464, zip_derived_cl1463])).
% 89.10/13.35  thf(zip_derived_cl1636, plain, (((hd @ sk1) = (sk5))),
% 89.10/13.35      inference('simplify_reflect-', [status(thm)],
% 89.10/13.35                [zip_derived_cl1635, zip_derived_cl1465])).
% 89.10/13.35  thf(zip_derived_cl1651, plain, (((cons @ sk5 @ nil) = (sk1))),
% 89.10/13.35      inference('demod', [status(thm)],
% 89.10/13.35                [zip_derived_cl1611, zip_derived_cl1636])).
% 89.10/13.35  thf(clause138, axiom,
% 89.10/13.35    (( ( U ) != ( V ) ) | ( ~( ssList @ W ) ) | ( ~( ssItem @ V ) ) | 
% 89.10/13.35     ( ~( ssItem @ U ) ) | ( memberP @ ( cons @ V @ W ) @ U ))).
% 89.10/13.35  thf(zip_derived_cl137, plain,
% 89.10/13.35      (![X0 : $i, X1 : $i, X2 : $i]:
% 89.10/13.35         (((X1) != (X0))
% 89.10/13.35          | ~ (ssList @ X2)
% 89.10/13.35          | ~ (ssItem @ X0)
% 89.10/13.35          | ~ (ssItem @ X1)
% 89.10/13.35          |  (memberP @ (cons @ X0 @ X2) @ X1))),
% 89.10/13.35      inference('cnf', [status(esa)], [clause138])).
% 89.10/13.35  thf(zip_derived_cl1847, plain,
% 89.10/13.35      (![X0 : $i, X1 : $i]:
% 89.10/13.35         ( (memberP @ (cons @ X0 @ X1) @ X0)
% 89.10/13.35          | ~ (ssItem @ X0)
% 89.10/13.35          | ~ (ssItem @ X0)
% 89.10/13.35          | ~ (ssList @ X1))),
% 89.10/13.35      inference('eq_res', [status(thm)], [zip_derived_cl137])).
% 89.10/13.35  thf(zip_derived_cl1848, plain,
% 89.10/13.35      (![X0 : $i, X1 : $i]:
% 89.10/13.35         (~ (ssList @ X1)
% 89.10/13.35          | ~ (ssItem @ X0)
% 89.10/13.35          |  (memberP @ (cons @ X0 @ X1) @ X0))),
% 89.10/13.35      inference('simplify', [status(thm)], [zip_derived_cl1847])).
% 89.10/13.35  thf(zip_derived_cl1967, plain,
% 89.10/13.35      ((~ (ssList @ nil) | ~ (ssItem @ sk5) |  (memberP @ sk1 @ sk5))),
% 89.10/13.35      inference('s_sup+', [status(thm)],
% 89.10/13.35                [zip_derived_cl1651, zip_derived_cl1848])).
% 89.10/13.35  thf(zip_derived_cl7, plain, ( (ssList @ nil)),
% 89.10/13.35      inference('cnf', [status(esa)], [clause8])).
% 89.10/13.35  thf(zip_derived_cl1470, plain, ( (ssItem @ sk5)),
% 89.10/13.35      inference('simplify_reflect-', [status(thm)],
% 89.10/13.35                [zip_derived_cl1469, zip_derived_cl1465])).
% 89.10/13.35  thf(zip_derived_cl1969, plain, ( (memberP @ sk1 @ sk5)),
% 89.10/13.35      inference('demod', [status(thm)],
% 89.10/13.35                [zip_derived_cl1967, zip_derived_cl7, zip_derived_cl1470])).
% 89.10/13.35  thf(zip_derived_cl1651, plain, (((cons @ sk5 @ nil) = (sk1))),
% 89.10/13.35      inference('demod', [status(thm)],
% 89.10/13.35                [zip_derived_cl1611, zip_derived_cl1636])).
% 89.10/13.35  thf(zip_derived_cl168, plain,
% 89.10/13.35      (![X0 : $i, X1 : $i]:
% 89.10/13.35         (~ (memberP @ X0 @ X1)
% 89.10/13.35          | ~ (ssItem @ X1)
% 89.10/13.35          | ~ (ssList @ X0)
% 89.10/13.35          | ((app @ (skaf42 @ X0 @ X1) @ (cons @ X1 @ (skaf43 @ X1 @ X0)))
% 89.10/13.35              = (X0)))),
% 89.10/13.35      inference('cnf', [status(esa)], [clause169])).
% 89.10/13.35  thf(clause72, axiom,
% 89.10/13.35    (( ~( ssList @ U ) ) | ( duplicatefreeP @ U ) | ( ssItem @ V ))).
% 89.10/13.35  thf(zip_derived_cl71, plain,
% 89.10/13.35      (![X0 : $i, X1 : $i]:
% 89.10/13.35         (~ (ssList @ X0) |  (duplicatefreeP @ X0) |  (ssItem @ X1))),
% 89.10/13.35      inference('cnf', [status(esa)], [clause72])).
% 89.10/13.35  thf(clause179, axiom,
% 89.10/13.35    (( ( app @ ( app @ U @ ( cons @ V @ W ) ) @ ( cons @ V @ X ) ) != ( Y ) ) | 
% 89.10/13.35     ( ~( ssList @ X ) ) | ( ~( ssList @ W ) ) | ( ~( ssList @ U ) ) | 
% 89.10/13.35     ( ~( ssItem @ V ) ) | ( ~( duplicatefreeP @ Y ) ) | ( ~( ssList @ Y ) ))).
% 89.10/13.35  thf(zip_derived_cl178, plain,
% 89.10/13.35      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i, X4 : $i]:
% 89.10/13.35         (((app @ (app @ X1 @ (cons @ X2 @ X3)) @ (cons @ X2 @ X4)) != (X0))
% 89.10/13.35          | ~ (ssList @ X4)
% 89.10/13.35          | ~ (ssList @ X3)
% 89.10/13.35          | ~ (ssList @ X1)
% 89.10/13.35          | ~ (ssItem @ X2)
% 89.10/13.35          | ~ (duplicatefreeP @ X0)
% 89.10/13.35          | ~ (ssList @ X0))),
% 89.10/13.35      inference('cnf', [status(esa)], [clause179])).
% 89.10/13.35  thf(zip_derived_cl1407, plain,
% 89.10/13.35      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i, X4 : $i, X5 : $i]:
% 89.10/13.35         ( (ssItem @ X1)
% 89.10/13.35          | ~ (ssList @ X0)
% 89.10/13.35          | ~ (ssList @ X0)
% 89.10/13.35          | ~ (ssItem @ X3)
% 89.10/13.35          | ~ (ssList @ X5)
% 89.10/13.35          | ~ (ssList @ X4)
% 89.10/13.35          | ~ (ssList @ X2)
% 89.10/13.35          | ((app @ (app @ X5 @ (cons @ X3 @ X4)) @ (cons @ X3 @ X2)) != (X0)))),
% 89.10/13.35      inference('dp-resolution', [status(thm)],
% 89.10/13.35                [zip_derived_cl71, zip_derived_cl178])).
% 89.10/13.35  thf(zip_derived_cl3856, plain,
% 89.10/13.35      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i, X4 : $i, X5 : $i]:
% 89.10/13.35         (((app @ (app @ X5 @ (cons @ X3 @ X4)) @ (cons @ X3 @ X2)) != (X0))
% 89.10/13.35          | ~ (ssList @ X2)
% 89.10/13.35          | ~ (ssList @ X4)
% 89.10/13.35          | ~ (ssList @ X5)
% 89.10/13.35          | ~ (ssItem @ X3)
% 89.10/13.35          | ~ (ssList @ X0)
% 89.10/13.35          |  (ssItem @ X1))),
% 89.10/13.35      inference('simplify', [status(thm)], [zip_derived_cl1407])).
% 89.10/13.35  thf(zip_derived_cl3868, plain,
% 89.10/13.35      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i, X4 : $i]:
% 89.10/13.35         (~ (ssList @ X0)
% 89.10/13.35          | ~ (ssItem @ X3)
% 89.10/13.35          | ~ (memberP @ X0 @ X3)
% 89.10/13.35          | ((app @ X0 @ (cons @ X3 @ X2)) != (X1))
% 89.10/13.35          | ~ (ssList @ X2)
% 89.10/13.35          | ~ (ssList @ (skaf43 @ X3 @ X0))
% 89.10/13.35          | ~ (ssList @ (skaf42 @ X0 @ X3))
% 89.10/13.35          | ~ (ssItem @ X3)
% 89.10/13.35          | ~ (ssList @ X1)
% 89.10/13.35          |  (ssItem @ X4))),
% 89.10/13.35      inference('s_sup-', [status(thm)],
% 89.10/13.35                [zip_derived_cl168, zip_derived_cl3856])).
% 89.10/13.35  thf(clause52, axiom, (ssList @ ( skaf43 @ U @ V ))).
% 89.10/13.35  thf(zip_derived_cl51, plain,
% 89.10/13.35      (![X0 : $i, X1 : $i]:  (ssList @ (skaf43 @ X0 @ X1))),
% 89.10/13.35      inference('cnf', [status(esa)], [clause52])).
% 89.10/13.35  thf(clause53, axiom, (ssList @ ( skaf42 @ U @ V ))).
% 89.10/13.35  thf(zip_derived_cl52, plain,
% 89.10/13.35      (![X0 : $i, X1 : $i]:  (ssList @ (skaf42 @ X0 @ X1))),
% 89.10/13.35      inference('cnf', [status(esa)], [clause53])).
% 89.10/13.35  thf(zip_derived_cl3893, plain,
% 89.10/13.35      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i, X4 : $i]:
% 89.10/13.35         (~ (ssList @ X0)
% 89.10/13.35          | ~ (ssItem @ X3)
% 89.10/13.35          | ~ (memberP @ X0 @ X3)
% 89.10/13.35          | ((app @ X0 @ (cons @ X3 @ X2)) != (X1))
% 89.10/13.35          | ~ (ssList @ X2)
% 89.10/13.35          | ~ (ssItem @ X3)
% 89.10/13.35          | ~ (ssList @ X1)
% 89.10/13.35          |  (ssItem @ X4))),
% 89.10/13.35      inference('demod', [status(thm)],
% 89.10/13.35                [zip_derived_cl3868, zip_derived_cl51, zip_derived_cl52])).
% 89.10/13.35  thf(zip_derived_cl3894, plain,
% 89.10/13.35      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i, X4 : $i]:
% 89.10/13.35         ( (ssItem @ X4)
% 89.10/13.35          | ~ (ssList @ X1)
% 89.10/13.35          | ~ (ssList @ X2)
% 89.10/13.35          | ((app @ X0 @ (cons @ X3 @ X2)) != (X1))
% 89.10/13.35          | ~ (memberP @ X0 @ X3)
% 89.10/13.35          | ~ (ssItem @ X3)
% 89.10/13.35          | ~ (ssList @ X0))),
% 89.10/13.35      inference('simplify', [status(thm)], [zip_derived_cl3893])).
% 89.10/13.35  thf(zip_derived_cl4597, plain,
% 89.10/13.35      (![X0 : $i, X1 : $i, X2 : $i]:
% 89.10/13.35         ( (ssItem @ X2)
% 89.10/13.35          | ~ (ssList @ X0)
% 89.10/13.35          | ~ (ssList @ nil)
% 89.10/13.35          | ((app @ X1 @ sk1) != (X0))
% 89.10/13.35          | ~ (memberP @ X1 @ sk5)
% 89.10/13.35          | ~ (ssItem @ sk5)
% 89.10/13.35          | ~ (ssList @ X1))),
% 89.10/13.35      inference('s_sup-', [status(thm)],
% 89.10/13.35                [zip_derived_cl1651, zip_derived_cl3894])).
% 89.10/13.35  thf(zip_derived_cl7, plain, ( (ssList @ nil)),
% 89.10/13.35      inference('cnf', [status(esa)], [clause8])).
% 89.10/13.35  thf(zip_derived_cl1470, plain, ( (ssItem @ sk5)),
% 89.10/13.35      inference('simplify_reflect-', [status(thm)],
% 89.10/13.35                [zip_derived_cl1469, zip_derived_cl1465])).
% 89.10/13.35  thf(zip_derived_cl4614, plain,
% 89.10/13.35      (![X0 : $i, X1 : $i, X2 : $i]:
% 89.10/13.35         ( (ssItem @ X2)
% 89.10/13.35          | ~ (ssList @ X0)
% 89.10/13.35          | ((app @ X1 @ sk1) != (X0))
% 89.10/13.35          | ~ (memberP @ X1 @ sk5)
% 89.10/13.35          | ~ (ssList @ X1))),
% 89.10/13.35      inference('demod', [status(thm)],
% 89.10/13.35                [zip_derived_cl4597, zip_derived_cl7, zip_derived_cl1470])).
% 89.10/13.35  thf(zip_derived_cl4749, plain,
% 89.10/13.35      (![X0 : $i, X1 : $i]:
% 89.10/13.35         ( (ssItem @ X0)
% 89.10/13.35          | ~ (ssList @ X1)
% 89.10/13.35          | ((app @ sk1 @ sk1) != (X1))
% 89.10/13.35          | ~ (ssList @ sk1))),
% 89.10/13.35      inference('s_sup-', [status(thm)],
% 89.10/13.35                [zip_derived_cl1969, zip_derived_cl4614])).
% 89.10/13.35  thf(zip_derived_cl185, plain, ( (ssList @ sk1)),
% 89.10/13.35      inference('cnf', [status(esa)], [zf_stmt_9])).
% 89.10/13.35  thf(zip_derived_cl4755, plain,
% 89.10/13.35      (![X0 : $i, X1 : $i]:
% 89.10/13.35         ( (ssItem @ X0) | ~ (ssList @ X1) | ((app @ sk1 @ sk1) != (X1)))),
% 89.10/13.35      inference('demod', [status(thm)], [zip_derived_cl4749, zip_derived_cl185])).
% 89.10/13.35  thf(zip_derived_cl4827, plain,
% 89.10/13.35      (![X0 : $i]: (~ (ssList @ (app @ sk1 @ sk1)) |  (ssItem @ X0))),
% 89.10/13.35      inference('eq_res', [status(thm)], [zip_derived_cl4755])).
% 89.10/13.35  thf(zip_derived_cl4977, plain,
% 89.10/13.35      (![X0 : $i]: (~ (ssList @ sk1) | ~ (ssList @ sk1) |  (ssItem @ X0))),
% 89.10/13.35      inference('s_sup-', [status(thm)], [zip_derived_cl84, zip_derived_cl4827])).
% 89.10/13.35  thf(zip_derived_cl185, plain, ( (ssList @ sk1)),
% 89.10/13.35      inference('cnf', [status(esa)], [zf_stmt_9])).
% 89.10/13.35  thf(zip_derived_cl185, plain, ( (ssList @ sk1)),
% 89.10/13.35      inference('cnf', [status(esa)], [zf_stmt_9])).
% 89.10/13.35  thf(zip_derived_cl4981, plain, (![X0 : $i]:  (ssItem @ X0)),
% 89.10/13.35      inference('demod', [status(thm)],
% 89.10/13.35                [zip_derived_cl4977, zip_derived_cl185, zip_derived_cl185])).
% 89.10/13.35  thf(zip_derived_cl5162, plain,
% 89.10/13.35      (![X0 : $i, X1 : $i]:
% 89.10/13.35         (~ (memberP @ X0 @ X1)
% 89.10/13.35          | ~ (ssList @ X0)
% 89.10/13.35          | ((app @ (skaf42 @ X0 @ X1) @ (cons @ X1 @ (skaf43 @ X1 @ X0)))
% 89.10/13.35              = (X0)))),
% 89.10/13.35      inference('demod', [status(thm)], [zip_derived_cl168, zip_derived_cl4981])).
% 89.10/13.35  thf(zip_derived_cl1651, plain, (((cons @ sk5 @ nil) = (sk1))),
% 89.10/13.35      inference('demod', [status(thm)],
% 89.10/13.35                [zip_derived_cl1611, zip_derived_cl1636])).
% 89.10/13.35  thf(clause120, axiom,
% 89.10/13.35    (( ~( ssItem @ U ) ) | ( ~( ssList @ V ) ) | 
% 89.10/13.35     ( ( app @ ( cons @ U @ nil ) @ V ) = ( cons @ U @ V ) ))).
% 89.10/13.35  thf(zip_derived_cl119, plain,
% 89.10/13.35      (![X0 : $i, X1 : $i]:
% 89.10/13.35         (~ (ssItem @ X0)
% 89.10/13.35          | ~ (ssList @ X1)
% 89.10/13.35          | ((app @ (cons @ X0 @ nil) @ X1) = (cons @ X0 @ X1)))),
% 89.10/13.35      inference('cnf', [status(esa)], [clause120])).
% 89.10/13.35  thf(zip_derived_cl1712, plain,
% 89.10/13.35      (![X0 : $i]:
% 89.10/13.35         (~ (ssItem @ sk5)
% 89.10/13.35          | ~ (ssList @ X0)
% 89.10/13.35          | ((app @ sk1 @ X0) = (cons @ sk5 @ X0)))),
% 89.10/13.35      inference('s_sup+', [status(thm)],
% 89.10/13.35                [zip_derived_cl1651, zip_derived_cl119])).
% 89.10/13.35  thf(zip_derived_cl1470, plain, ( (ssItem @ sk5)),
% 89.10/13.35      inference('simplify_reflect-', [status(thm)],
% 89.10/13.35                [zip_derived_cl1469, zip_derived_cl1465])).
% 89.10/13.35  thf(zip_derived_cl1713, plain,
% 89.10/13.35      (![X0 : $i]: (~ (ssList @ X0) | ((app @ sk1 @ X0) = (cons @ sk5 @ X0)))),
% 89.10/13.35      inference('demod', [status(thm)],
% 89.10/13.35                [zip_derived_cl1712, zip_derived_cl1470])).
% 89.10/13.35  thf(clause149, axiom,
% 89.10/13.35    (( ~( ssList @ U ) ) | ( ~( ssList @ V ) ) | ( ~( ssList @ W ) ) | 
% 89.10/13.35     ( ( app @ ( app @ W @ V ) @ U ) = ( app @ W @ ( app @ V @ U ) ) ))).
% 89.10/13.35  thf(zip_derived_cl148, plain,
% 89.10/13.35      (![X0 : $i, X1 : $i, X2 : $i]:
% 89.10/13.35         (~ (ssList @ X0)
% 89.10/13.35          | ~ (ssList @ X1)
% 89.10/13.35          | ~ (ssList @ X2)
% 89.10/13.35          | ((app @ (app @ X2 @ X1) @ X0) = (app @ X2 @ (app @ X1 @ X0))))),
% 89.10/13.35      inference('cnf', [status(esa)], [clause149])).
% 89.10/13.35  thf(clause173, axiom,
% 89.10/13.35    (( ( app @ ( app @ U @ V ) @ W ) != ( X ) ) | ( ~( ssList @ W ) ) | 
% 89.10/13.35     ( ~( ssList @ U ) ) | ( ~( ssList @ V ) ) | ( ~( ssList @ X ) ) | 
% 89.10/13.35     ( segmentP @ X @ V ))).
% 89.10/13.35  thf(zip_derived_cl172, plain,
% 89.10/13.35      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i]:
% 89.10/13.35         (((app @ (app @ X1 @ X2) @ X3) != (X0))
% 89.10/13.35          | ~ (ssList @ X3)
% 89.10/13.35          | ~ (ssList @ X1)
% 89.10/13.35          | ~ (ssList @ X2)
% 89.10/13.35          | ~ (ssList @ X0)
% 89.10/13.35          |  (segmentP @ X0 @ X2))),
% 89.10/13.35      inference('cnf', [status(esa)], [clause173])).
% 89.10/13.35  thf(zip_derived_cl3400, plain,
% 89.10/13.35      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i]:
% 89.10/13.35         (~ (ssList @ X2)
% 89.10/13.35          | ~ (ssList @ X1)
% 89.10/13.35          | ~ (ssList @ X0)
% 89.10/13.35          | ((app @ X2 @ (app @ X1 @ X0)) != (X3))
% 89.10/13.35          | ~ (ssList @ X0)
% 89.10/13.35          | ~ (ssList @ X2)
% 89.10/13.35          | ~ (ssList @ X1)
% 89.10/13.35          | ~ (ssList @ X3)
% 89.10/13.35          |  (segmentP @ X3 @ X1))),
% 89.10/13.35      inference('s_sup-', [status(thm)], [zip_derived_cl148, zip_derived_cl172])).
% 89.10/13.35  thf(zip_derived_cl3425, plain,
% 89.10/13.35      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i]:
% 89.10/13.35         ( (segmentP @ X3 @ X1)
% 89.10/13.35          | ~ (ssList @ X3)
% 89.10/13.35          | ((app @ X2 @ (app @ X1 @ X0)) != (X3))
% 89.10/13.35          | ~ (ssList @ X0)
% 89.10/13.35          | ~ (ssList @ X1)
% 89.10/13.35          | ~ (ssList @ X2))),
% 89.10/13.35      inference('simplify', [status(thm)], [zip_derived_cl3400])).
% 89.10/13.35  thf(zip_derived_cl5339, plain,
% 89.10/13.35      (![X0 : $i, X1 : $i, X2 : $i]:
% 89.10/13.35         (~ (ssList @ X0)
% 89.10/13.35          |  (segmentP @ X1 @ sk1)
% 89.10/13.35          | ~ (ssList @ X1)
% 89.10/13.35          | ((app @ X2 @ (cons @ sk5 @ X0)) != (X1))
% 89.10/13.35          | ~ (ssList @ X0)
% 89.10/13.35          | ~ (ssList @ sk1)
% 89.10/13.35          | ~ (ssList @ X2))),
% 89.10/13.35      inference('s_sup-', [status(thm)],
% 89.10/13.35                [zip_derived_cl1713, zip_derived_cl3425])).
% 89.10/13.35  thf(zip_derived_cl185, plain, ( (ssList @ sk1)),
% 89.10/13.35      inference('cnf', [status(esa)], [zf_stmt_9])).
% 89.10/13.35  thf(zip_derived_cl5364, plain,
% 89.10/13.35      (![X0 : $i, X1 : $i, X2 : $i]:
% 89.10/13.35         (~ (ssList @ X0)
% 89.10/13.35          |  (segmentP @ X1 @ sk1)
% 89.10/13.35          | ~ (ssList @ X1)
% 89.10/13.35          | ((app @ X2 @ (cons @ sk5 @ X0)) != (X1))
% 89.10/13.35          | ~ (ssList @ X0)
% 89.10/13.35          | ~ (ssList @ X2))),
% 89.10/13.35      inference('demod', [status(thm)], [zip_derived_cl5339, zip_derived_cl185])).
% 89.10/13.35  thf(zip_derived_cl5365, plain,
% 89.10/13.35      (![X0 : $i, X1 : $i, X2 : $i]:
% 89.10/13.35         (~ (ssList @ X2)
% 89.10/13.35          | ((app @ X2 @ (cons @ sk5 @ X0)) != (X1))
% 89.10/13.35          | ~ (ssList @ X1)
% 89.10/13.35          |  (segmentP @ X1 @ sk1)
% 89.10/13.35          | ~ (ssList @ X0))),
% 89.10/13.35      inference('simplify', [status(thm)], [zip_derived_cl5364])).
% 89.10/13.35  thf(zip_derived_cl29856, plain,
% 89.10/13.35      (![X0 : $i, X1 : $i]:
% 89.10/13.35         (~ (ssList @ X0)
% 89.10/13.35          | ~ (memberP @ X0 @ sk5)
% 89.10/13.35          | ~ (ssList @ (skaf42 @ X0 @ sk5))
% 89.10/13.35          | ((X0) != (X1))
% 89.10/13.35          | ~ (ssList @ X1)
% 89.10/13.35          |  (segmentP @ X1 @ sk1)
% 89.10/13.35          | ~ (ssList @ (skaf43 @ sk5 @ X0)))),
% 89.10/13.35      inference('s_sup-', [status(thm)],
% 89.10/13.35                [zip_derived_cl5162, zip_derived_cl5365])).
% 89.10/13.35  thf(zip_derived_cl52, plain,
% 89.10/13.35      (![X0 : $i, X1 : $i]:  (ssList @ (skaf42 @ X0 @ X1))),
% 89.10/13.35      inference('cnf', [status(esa)], [clause53])).
% 89.10/13.35  thf(zip_derived_cl51, plain,
% 89.10/13.35      (![X0 : $i, X1 : $i]:  (ssList @ (skaf43 @ X0 @ X1))),
% 89.10/13.35      inference('cnf', [status(esa)], [clause52])).
% 89.10/13.35  thf(zip_derived_cl29887, plain,
% 89.10/13.35      (![X0 : $i, X1 : $i]:
% 89.10/13.35         (~ (ssList @ X0)
% 89.10/13.35          | ~ (memberP @ X0 @ sk5)
% 89.10/13.35          | ((X0) != (X1))
% 89.10/13.35          | ~ (ssList @ X1)
% 89.10/13.35          |  (segmentP @ X1 @ sk1))),
% 89.10/13.35      inference('demod', [status(thm)],
% 89.10/13.35                [zip_derived_cl29856, zip_derived_cl52, zip_derived_cl51])).
% 89.10/13.35  thf(zip_derived_cl30256, plain,
% 89.10/13.35      (![X0 : $i]:
% 89.10/13.35         ( (segmentP @ X0 @ sk1)
% 89.10/13.35          | ~ (ssList @ X0)
% 89.10/13.35          | ~ (memberP @ X0 @ sk5)
% 89.10/13.35          | ~ (ssList @ X0))),
% 89.10/13.35      inference('eq_res', [status(thm)], [zip_derived_cl29887])).
% 89.10/13.35  thf(zip_derived_cl30257, plain,
% 89.10/13.35      (![X0 : $i]:
% 89.10/13.35         (~ (memberP @ X0 @ sk5) | ~ (ssList @ X0) |  (segmentP @ X0 @ sk1))),
% 89.10/13.35      inference('simplify', [status(thm)], [zip_derived_cl30256])).
% 89.10/13.35  thf(clause132, axiom,
% 89.10/13.35    (( ~( frontsegP @ U @ V ) ) | ( ~( ssList @ V ) ) | ( ~( ssList @ U ) ) | 
% 89.10/13.35     ( ( app @ V @ ( skaf45 @ U @ V ) ) = ( U ) ))).
% 89.10/13.35  thf(zip_derived_cl131, plain,
% 89.10/13.35      (![X0 : $i, X1 : $i]:
% 89.10/13.35         (~ (frontsegP @ X0 @ X1)
% 89.10/13.35          | ~ (ssList @ X1)
% 89.10/13.35          | ~ (ssList @ X0)
% 89.10/13.35          | ((app @ X1 @ (skaf45 @ X0 @ X1)) = (X0)))),
% 89.10/13.35      inference('cnf', [status(esa)], [clause132])).
% 89.10/13.35  thf(clause74, axiom, (( ~( ssList @ U ) ) | ( ( app @ nil @ U ) = ( U ) ))).
% 89.10/13.35  thf(zip_derived_cl73, plain,
% 89.10/13.35      (![X0 : $i]: (~ (ssList @ X0) | ((app @ nil @ X0) = (X0)))),
% 89.10/13.35      inference('cnf', [status(esa)], [clause74])).
% 89.10/13.35  thf(zip_derived_cl172, plain,
% 89.10/13.35      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i]:
% 89.10/13.35         (((app @ (app @ X1 @ X2) @ X3) != (X0))
% 89.10/13.35          | ~ (ssList @ X3)
% 89.10/13.35          | ~ (ssList @ X1)
% 89.10/13.35          | ~ (ssList @ X2)
% 89.10/13.35          | ~ (ssList @ X0)
% 89.10/13.35          |  (segmentP @ X0 @ X2))),
% 89.10/13.35      inference('cnf', [status(esa)], [clause173])).
% 89.10/13.35  thf(zip_derived_cl3407, plain,
% 89.10/13.35      (![X0 : $i, X1 : $i, X2 : $i]:
% 89.10/13.35         (~ (ssList @ X0)
% 89.10/13.35          | ((app @ X0 @ X2) != (X1))
% 89.10/13.35          | ~ (ssList @ X2)
% 89.10/13.35          | ~ (ssList @ nil)
% 89.10/13.35          | ~ (ssList @ X0)
% 89.10/13.35          | ~ (ssList @ X1)
% 89.10/13.35          |  (segmentP @ X1 @ X0))),
% 89.10/13.35      inference('s_sup-', [status(thm)], [zip_derived_cl73, zip_derived_cl172])).
% 89.10/13.35  thf(zip_derived_cl7, plain, ( (ssList @ nil)),
% 89.10/13.35      inference('cnf', [status(esa)], [clause8])).
% 89.10/13.35  thf(zip_derived_cl3435, plain,
% 89.10/13.35      (![X0 : $i, X1 : $i, X2 : $i]:
% 89.10/13.35         (~ (ssList @ X0)
% 89.10/13.35          | ((app @ X0 @ X2) != (X1))
% 89.10/13.35          | ~ (ssList @ X2)
% 89.10/13.35          | ~ (ssList @ X0)
% 89.10/13.35          | ~ (ssList @ X1)
% 89.10/13.35          |  (segmentP @ X1 @ X0))),
% 89.10/13.35      inference('demod', [status(thm)], [zip_derived_cl3407, zip_derived_cl7])).
% 89.10/13.35  thf(zip_derived_cl3436, plain,
% 89.10/13.35      (![X0 : $i, X1 : $i, X2 : $i]:
% 89.10/13.35         ( (segmentP @ X1 @ X0)
% 89.10/13.35          | ~ (ssList @ X1)
% 89.10/13.35          | ~ (ssList @ X2)
% 89.10/13.35          | ((app @ X0 @ X2) != (X1))
% 89.10/13.35          | ~ (ssList @ X0))),
% 89.10/13.35      inference('simplify', [status(thm)], [zip_derived_cl3435])).
% 89.10/13.35  thf(zip_derived_cl3484, plain,
% 89.10/13.35      (![X0 : $i, X1 : $i, X2 : $i]:
% 89.10/13.35         (~ (ssList @ X0)
% 89.10/13.35          | ~ (ssList @ X2)
% 89.10/13.35          | ~ (frontsegP @ X0 @ X2)
% 89.10/13.35          |  (segmentP @ X1 @ X2)
% 89.10/13.35          | ~ (ssList @ X1)
% 89.10/13.35          | ~ (ssList @ (skaf45 @ X0 @ X2))
% 89.10/13.35          | ((X0) != (X1))
% 89.10/13.35          | ~ (ssList @ X2))),
% 89.10/13.35      inference('s_sup-', [status(thm)],
% 89.10/13.35                [zip_derived_cl131, zip_derived_cl3436])).
% 89.10/13.35  thf(clause51, axiom, (ssList @ ( skaf45 @ U @ V ))).
% 89.10/13.35  thf(zip_derived_cl50, plain,
% 89.10/13.35      (![X0 : $i, X1 : $i]:  (ssList @ (skaf45 @ X0 @ X1))),
% 89.10/13.35      inference('cnf', [status(esa)], [clause51])).
% 89.10/13.35  thf(zip_derived_cl3503, plain,
% 89.10/13.35      (![X0 : $i, X1 : $i, X2 : $i]:
% 89.10/13.35         (~ (ssList @ X0)
% 89.10/13.35          | ~ (ssList @ X2)
% 89.10/13.35          | ~ (frontsegP @ X0 @ X2)
% 89.10/13.35          |  (segmentP @ X1 @ X2)
% 89.10/13.35          | ~ (ssList @ X1)
% 89.10/13.35          | ((X0) != (X1))
% 89.10/13.35          | ~ (ssList @ X2))),
% 89.10/13.35      inference('demod', [status(thm)], [zip_derived_cl3484, zip_derived_cl50])).
% 89.10/13.35  thf(zip_derived_cl3504, plain,
% 89.10/13.35      (![X0 : $i, X1 : $i, X2 : $i]:
% 89.10/13.35         (((X0) != (X1))
% 89.10/13.35          | ~ (ssList @ X1)
% 89.10/13.35          |  (segmentP @ X1 @ X2)
% 89.10/13.35          | ~ (frontsegP @ X0 @ X2)
% 89.10/13.35          | ~ (ssList @ X2)
% 89.10/13.35          | ~ (ssList @ X0))),
% 89.10/13.35      inference('simplify', [status(thm)], [zip_derived_cl3503])).
% 89.10/13.35  thf(zip_derived_cl3611, plain,
% 89.10/13.35      (![X0 : $i, X1 : $i]:
% 89.10/13.35         (~ (ssList @ X0)
% 89.10/13.35          | ~ (ssList @ X1)
% 89.10/13.35          | ~ (frontsegP @ X0 @ X1)
% 89.10/13.35          |  (segmentP @ X0 @ X1)
% 89.10/13.35          | ~ (ssList @ X0))),
% 89.10/13.35      inference('eq_res', [status(thm)], [zip_derived_cl3504])).
% 89.10/13.35  thf(zip_derived_cl3612, plain,
% 89.10/13.35      (![X0 : $i, X1 : $i]:
% 89.10/13.35         ( (segmentP @ X0 @ X1)
% 89.10/13.35          | ~ (frontsegP @ X0 @ X1)
% 89.10/13.35          | ~ (ssList @ X1)
% 89.10/13.35          | ~ (ssList @ X0))),
% 89.10/13.35      inference('simplify', [status(thm)], [zip_derived_cl3611])).
% 89.10/13.35  thf(clause100, axiom,
% 89.10/13.35    (( ~( ssList @ U ) ) | ( ~( ssList @ V ) ) | ( neq @ V @ U ) | 
% 89.10/13.35     ( ( V ) = ( U ) ))).
% 89.10/13.35  thf(zip_derived_cl99, plain,
% 89.10/13.35      (![X0 : $i, X1 : $i]:
% 89.10/13.35         (~ (ssList @ X0) | ~ (ssList @ X1) |  (neq @ X1 @ X0) | ((X1) = (X0)))),
% 89.10/13.35      inference('cnf', [status(esa)], [clause100])).
% 89.10/13.35  thf(co1_16, conjecture,
% 89.10/13.35    (~( ( ~( segmentP @ sk1 @ A ) ) | ( ~( segmentP @ sk2 @ A ) ) | 
% 89.10/13.35        ( ~( neq @ A @ nil ) ) | ( ~( ssList @ A ) ) | ( ( nil ) = ( sk2 ) ) ))).
% 89.10/13.35  thf(zf_stmt_10, negated_conjecture,
% 89.10/13.35    (( ~( segmentP @ sk1 @ A ) ) | ( ~( segmentP @ sk2 @ A ) ) | 
% 89.10/13.35     ( ~( neq @ A @ nil ) ) | ( ~( ssList @ A ) ) | ( ( nil ) = ( sk2 ) )),
% 89.10/13.35    inference('cnf.neg', [status(esa)], [co1_16])).
% 89.10/13.35  thf(zip_derived_cl200, plain,
% 89.10/13.35      (![X0 : $i]:
% 89.10/13.35         (~ (segmentP @ sk1 @ X0)
% 89.10/13.35          | ~ (segmentP @ sk2 @ X0)
% 89.10/13.35          | ~ (neq @ X0 @ nil)
% 89.10/13.35          | ~ (ssList @ X0)
% 89.10/13.35          | ((nil) = (sk2)))),
% 89.10/13.35      inference('cnf', [status(esa)], [zf_stmt_10])).
% 89.10/13.35  thf(zip_derived_cl1430, plain,
% 89.10/13.35      (![X0 : $i]:
% 89.10/13.35         (((X0) = (nil))
% 89.10/13.35          | ~ (ssList @ X0)
% 89.10/13.35          | ~ (ssList @ nil)
% 89.10/13.35          | ((nil) = (sk2))
% 89.10/13.35          | ~ (ssList @ X0)
% 89.10/13.35          | ~ (segmentP @ sk2 @ X0)
% 89.10/13.35          | ~ (segmentP @ sk1 @ X0))),
% 89.10/13.35      inference('dp-resolution', [status(thm)],
% 89.10/13.35                [zip_derived_cl99, zip_derived_cl200])).
% 89.10/13.35  thf(zip_derived_cl1582, plain,
% 89.10/13.35      (![X0 : $i]:
% 89.10/13.35         (~ (segmentP @ sk1 @ X0)
% 89.10/13.35          | ~ (segmentP @ sk2 @ X0)
% 89.10/13.35          | ((nil) = (sk2))
% 89.10/13.35          | ~ (ssList @ nil)
% 89.10/13.35          | ~ (ssList @ X0)
% 89.10/13.35          | ((X0) = (nil)))),
% 89.10/13.35      inference('simplify', [status(thm)], [zip_derived_cl1430])).
% 89.10/13.35  thf(zip_derived_cl7, plain, ( (ssList @ nil)),
% 89.10/13.35      inference('cnf', [status(esa)], [clause8])).
% 89.10/13.35  thf(zip_derived_cl1583, plain,
% 89.10/13.35      (![X0 : $i]:
% 89.10/13.35         (~ (segmentP @ sk1 @ X0)
% 89.10/13.35          | ~ (segmentP @ sk2 @ X0)
% 89.10/13.35          | ((nil) = (sk2))
% 89.10/13.35          | ~ (ssList @ X0)
% 89.10/13.35          | ((X0) = (nil)))),
% 89.10/13.35      inference('demod', [status(thm)], [zip_derived_cl1582, zip_derived_cl7])).
% 89.10/13.35  thf(zip_derived_cl3726, plain,
% 89.10/13.35      (![X0 : $i]:
% 89.10/13.35         (~ (ssList @ sk1)
% 89.10/13.35          | ~ (ssList @ X0)
% 89.10/13.35          | ~ (frontsegP @ sk1 @ X0)
% 89.10/13.35          | ~ (segmentP @ sk2 @ X0)
% 89.10/13.35          | ((nil) = (sk2))
% 89.10/13.35          | ~ (ssList @ X0)
% 89.10/13.35          | ((X0) = (nil)))),
% 89.10/13.35      inference('s_sup-', [status(thm)],
% 89.10/13.35                [zip_derived_cl3612, zip_derived_cl1583])).
% 89.10/13.35  thf(zip_derived_cl185, plain, ( (ssList @ sk1)),
% 89.10/13.35      inference('cnf', [status(esa)], [zf_stmt_9])).
% 89.10/13.35  thf(zip_derived_cl3735, plain,
% 89.10/13.35      (![X0 : $i]:
% 89.10/13.35         (~ (ssList @ X0)
% 89.10/13.35          | ~ (frontsegP @ sk1 @ X0)
% 89.10/13.35          | ~ (segmentP @ sk2 @ X0)
% 89.10/13.35          | ((nil) = (sk2))
% 89.10/13.35          | ~ (ssList @ X0)
% 89.10/13.35          | ((X0) = (nil)))),
% 89.10/13.35      inference('demod', [status(thm)], [zip_derived_cl3726, zip_derived_cl185])).
% 89.10/13.35  thf(zip_derived_cl3736, plain,
% 89.10/13.35      (![X0 : $i]:
% 89.10/13.35         (((X0) = (nil))
% 89.10/13.35          | ((nil) = (sk2))
% 89.10/13.35          | ~ (segmentP @ sk2 @ X0)
% 89.10/13.35          | ~ (frontsegP @ sk1 @ X0)
% 89.10/13.35          | ~ (ssList @ X0))),
% 89.10/13.35      inference('simplify', [status(thm)], [zip_derived_cl3735])).
% 89.10/13.35  thf(zip_derived_cl67724, plain,
% 89.10/13.35      ((~ (ssList @ sk2)
% 89.10/13.35        | ~ (memberP @ sk2 @ sk5)
% 89.10/13.35        | ((sk1) = (nil))
% 89.10/13.35        | ((nil) = (sk2))
% 89.10/13.35        | ~ (frontsegP @ sk1 @ sk1)
% 89.10/13.35        | ~ (ssList @ sk1))),
% 89.10/13.35      inference('s_sup-', [status(thm)],
% 89.10/13.35                [zip_derived_cl30257, zip_derived_cl3736])).
% 89.10/13.35  thf(zip_derived_cl186, plain, ( (ssList @ sk2)),
% 89.10/13.35      inference('cnf', [status(esa)], [zf_stmt_4])).
% 89.10/13.35  thf(zip_derived_cl1473, plain, ( (memberP @ sk2 @ sk5)),
% 89.10/13.35      inference('simplify_reflect-', [status(thm)],
% 89.10/13.35                [zip_derived_cl1472, zip_derived_cl1465])).
% 89.10/13.35  thf(zip_derived_cl1651, plain, (((cons @ sk5 @ nil) = (sk1))),
% 89.10/13.35      inference('demod', [status(thm)],
% 89.10/13.35                [zip_derived_cl1611, zip_derived_cl1636])).
% 89.10/13.35  thf(zip_derived_cl1713, plain,
% 89.10/13.35      (![X0 : $i]: (~ (ssList @ X0) | ((app @ sk1 @ X0) = (cons @ sk5 @ X0)))),
% 89.10/13.35      inference('demod', [status(thm)],
% 89.10/13.35                [zip_derived_cl1712, zip_derived_cl1470])).
% 89.10/13.35  thf(clause144, axiom,
% 89.10/13.35    (( ( app @ U @ V ) != ( W ) ) | ( ~( ssList @ V ) ) | 
% 89.10/13.35     ( ~( ssList @ U ) ) | ( ~( ssList @ W ) ) | ( frontsegP @ W @ U ))).
% 89.10/13.35  thf(zip_derived_cl143, plain,
% 89.10/13.35      (![X0 : $i, X1 : $i, X2 : $i]:
% 89.10/13.35         (((app @ X1 @ X2) != (X0))
% 89.10/13.35          | ~ (ssList @ X2)
% 89.10/13.35          | ~ (ssList @ X1)
% 89.10/13.35          | ~ (ssList @ X0)
% 89.10/13.35          |  (frontsegP @ X0 @ X1))),
% 89.10/13.35      inference('cnf', [status(esa)], [clause144])).
% 89.10/13.35  thf(zip_derived_cl2134, plain,
% 89.10/13.35      (![X0 : $i, X1 : $i]:
% 89.10/13.35         (~ (ssList @ X0)
% 89.10/13.35          | ((cons @ sk5 @ X0) != (X1))
% 89.10/13.35          | ~ (ssList @ X0)
% 89.10/13.35          | ~ (ssList @ sk1)
% 89.10/13.35          | ~ (ssList @ X1)
% 89.10/13.35          |  (frontsegP @ X1 @ sk1))),
% 89.10/13.35      inference('s_sup-', [status(thm)],
% 89.10/13.35                [zip_derived_cl1713, zip_derived_cl143])).
% 89.10/13.35  thf(zip_derived_cl185, plain, ( (ssList @ sk1)),
% 89.10/13.35      inference('cnf', [status(esa)], [zf_stmt_9])).
% 89.10/13.35  thf(zip_derived_cl2147, plain,
% 89.10/13.35      (![X0 : $i, X1 : $i]:
% 89.10/13.35         (~ (ssList @ X0)
% 89.10/13.35          | ((cons @ sk5 @ X0) != (X1))
% 89.10/13.35          | ~ (ssList @ X0)
% 89.10/13.35          | ~ (ssList @ X1)
% 89.10/13.35          |  (frontsegP @ X1 @ sk1))),
% 89.10/13.35      inference('demod', [status(thm)], [zip_derived_cl2134, zip_derived_cl185])).
% 89.10/13.35  thf(zip_derived_cl2148, plain,
% 89.10/13.35      (![X0 : $i, X1 : $i]:
% 89.10/13.35         ( (frontsegP @ X1 @ sk1)
% 89.10/13.35          | ~ (ssList @ X1)
% 89.10/13.35          | ((cons @ sk5 @ X0) != (X1))
% 89.10/13.35          | ~ (ssList @ X0))),
% 89.10/13.35      inference('simplify', [status(thm)], [zip_derived_cl2147])).
% 89.10/13.35  thf(zip_derived_cl2234, plain,
% 89.10/13.35      (![X0 : $i]:
% 89.10/13.35         (~ (ssList @ X0)
% 89.10/13.35          | ~ (ssList @ (cons @ sk5 @ X0))
% 89.10/13.35          |  (frontsegP @ (cons @ sk5 @ X0) @ sk1))),
% 89.10/13.35      inference('eq_res', [status(thm)], [zip_derived_cl2148])).
% 89.10/13.35  thf(zip_derived_cl1713, plain,
% 89.10/13.35      (![X0 : $i]: (~ (ssList @ X0) | ((app @ sk1 @ X0) = (cons @ sk5 @ X0)))),
% 89.10/13.35      inference('demod', [status(thm)],
% 89.10/13.35                [zip_derived_cl1712, zip_derived_cl1470])).
% 89.10/13.35  thf(zip_derived_cl84, plain,
% 89.10/13.35      (![X0 : $i, X1 : $i]:
% 89.10/13.35         (~ (ssList @ X0) | ~ (ssList @ X1) |  (ssList @ (app @ X1 @ X0)))),
% 89.10/13.35      inference('cnf', [status(esa)], [clause85])).
% 89.10/13.35  thf(zip_derived_cl1728, plain,
% 89.10/13.35      (![X0 : $i]:
% 89.10/13.35         (~ (ssList @ X0)
% 89.10/13.35          | ~ (ssList @ X0)
% 89.10/13.35          | ~ (ssList @ sk1)
% 89.10/13.35          |  (ssList @ (cons @ sk5 @ X0)))),
% 89.10/13.35      inference('s_sup+', [status(thm)], [zip_derived_cl1713, zip_derived_cl84])).
% 89.10/13.35  thf(zip_derived_cl185, plain, ( (ssList @ sk1)),
% 89.10/13.35      inference('cnf', [status(esa)], [zf_stmt_9])).
% 89.10/13.35  thf(zip_derived_cl1732, plain,
% 89.10/13.35      (![X0 : $i]:
% 89.10/13.35         (~ (ssList @ X0) | ~ (ssList @ X0) |  (ssList @ (cons @ sk5 @ X0)))),
% 89.10/13.35      inference('demod', [status(thm)], [zip_derived_cl1728, zip_derived_cl185])).
% 89.10/13.35  thf(zip_derived_cl1733, plain,
% 89.10/13.35      (![X0 : $i]: ( (ssList @ (cons @ sk5 @ X0)) | ~ (ssList @ X0))),
% 89.10/13.35      inference('simplify', [status(thm)], [zip_derived_cl1732])).
% 89.10/13.35  thf(zip_derived_cl2259, plain,
% 89.10/13.35      (![X0 : $i]: ( (frontsegP @ (cons @ sk5 @ X0) @ sk1) | ~ (ssList @ X0))),
% 89.10/13.35      inference('clc', [status(thm)], [zip_derived_cl2234, zip_derived_cl1733])).
% 89.10/13.35  thf(zip_derived_cl2262, plain,
% 89.10/13.35      (( (frontsegP @ sk1 @ sk1) | ~ (ssList @ nil))),
% 89.10/13.35      inference('s_sup+', [status(thm)],
% 89.10/13.35                [zip_derived_cl1651, zip_derived_cl2259])).
% 89.10/13.35  thf(zip_derived_cl7, plain, ( (ssList @ nil)),
% 89.10/13.35      inference('cnf', [status(esa)], [clause8])).
% 89.10/13.35  thf(zip_derived_cl2263, plain, ( (frontsegP @ sk1 @ sk1)),
% 89.10/13.35      inference('demod', [status(thm)], [zip_derived_cl2262, zip_derived_cl7])).
% 89.10/13.35  thf(zip_derived_cl185, plain, ( (ssList @ sk1)),
% 89.10/13.35      inference('cnf', [status(esa)], [zf_stmt_9])).
% 89.10/13.35  thf(zip_derived_cl67765, plain, ((((sk1) = (nil)) | ((nil) = (sk2)))),
% 89.10/13.35      inference('demod', [status(thm)],
% 89.10/13.35                [zip_derived_cl67724, zip_derived_cl186, zip_derived_cl1473, 
% 89.10/13.35                 zip_derived_cl2263, zip_derived_cl185])).
% 89.10/13.35  thf(zip_derived_cl1465, plain, (((nil) != (sk1))),
% 89.10/13.35      inference('clc', [status(thm)], [zip_derived_cl1464, zip_derived_cl1463])).
% 89.10/13.35  thf(zip_derived_cl67766, plain, (((nil) = (sk2))),
% 89.10/13.35      inference('simplify_reflect-', [status(thm)],
% 89.10/13.35                [zip_derived_cl67765, zip_derived_cl1465])).
% 89.10/13.35  thf(clause71, axiom, (( ~( memberP @ nil @ U ) ) | ( ~( ssItem @ U ) ))).
% 89.10/13.35  thf(zip_derived_cl70, plain,
% 89.10/13.35      (![X0 : $i]: (~ (memberP @ nil @ X0) | ~ (ssItem @ X0))),
% 89.10/13.35      inference('cnf', [status(esa)], [clause71])).
% 89.10/13.35  thf(zip_derived_cl4981, plain, (![X0 : $i]:  (ssItem @ X0)),
% 89.10/13.35      inference('demod', [status(thm)],
% 89.10/13.35                [zip_derived_cl4977, zip_derived_cl185, zip_derived_cl185])).
% 89.10/13.35  thf(zip_derived_cl5127, plain, (![X0 : $i]: ~ (memberP @ nil @ X0)),
% 89.10/13.35      inference('demod', [status(thm)], [zip_derived_cl70, zip_derived_cl4981])).
% 89.10/13.35  thf(zip_derived_cl67852, plain, ($false),
% 89.10/13.35      inference('demod', [status(thm)],
% 89.10/13.35                [zip_derived_cl1473, zip_derived_cl67766, zip_derived_cl5127])).
% 89.10/13.35  
% 89.10/13.35  % SZS output end Refutation
% 89.10/13.35  
% 89.10/13.35  
% 89.10/13.35  % Terminating...
% 89.10/13.39  % Runner terminated.
% 89.10/13.40  % Zipperpin 1.5 exiting
%------------------------------------------------------------------------------