TSTP Solution File: SWC119-1 by Zipperpin---2.1.9999

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : Zipperpin---2.1.9999
% Problem  : SWC119-1 : TPTP v8.1.2. Released v2.4.0.
% Transfm  : NO INFORMATION
% Format   : NO INFORMATION
% Command  : python3 /export/starexec/sandbox/solver/bin/portfolio.lams.parallel.py %s %d /export/starexec/sandbox/tmp/tmp.Us52IQZmaj true

% Computer : n018.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 21:29:17 EDT 2023

% Result   : Unsatisfiable 149.27s 21.88s
% Output   : Refutation 149.27s
% Verified : 
% SZS Type : -

% Comments : 
%------------------------------------------------------------------------------
%----WARNING: Could not form TPTP format derivation
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.06/0.11  % Problem  : SWC119-1 : TPTP v8.1.2. Released v2.4.0.
% 0.06/0.13  % Command  : python3 /export/starexec/sandbox/solver/bin/portfolio.lams.parallel.py %s %d /export/starexec/sandbox/tmp/tmp.Us52IQZmaj true
% 0.13/0.33  % Computer : n018.cluster.edu
% 0.13/0.33  % Model    : x86_64 x86_64
% 0.13/0.33  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.13/0.33  % Memory   : 8042.1875MB
% 0.13/0.33  % 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 18:24:17 EDT 2023
% 0.13/0.34  % CPUTime  : 
% 0.13/0.34  % Running portfolio for 300 s
% 0.13/0.34  % File         : /export/starexec/sandbox/benchmark/theBenchmark.p
% 0.13/0.34  % Number of cores: 8
% 0.13/0.34  % Python version: Python 3.6.8
% 0.13/0.34  % Running in FO mode
% 0.51/0.63  % Total configuration time : 435
% 0.51/0.63  % Estimated wc time : 1092
% 0.51/0.63  % Estimated cpu time (7 cpus) : 156.0
% 0.51/0.69  % /export/starexec/sandbox/solver/bin/fo/fo6_bce.sh running for 75s
% 0.51/0.69  % /export/starexec/sandbox/solver/bin/fo/fo3_bce.sh running for 75s
% 0.55/0.72  % /export/starexec/sandbox/solver/bin/fo/fo1_av.sh running for 75s
% 0.55/0.74  % /export/starexec/sandbox/solver/bin/fo/fo7.sh running for 63s
% 0.55/0.74  % /export/starexec/sandbox/solver/bin/fo/fo13.sh running for 50s
% 0.55/0.74  % /export/starexec/sandbox/solver/bin/fo/fo5.sh running for 50s
% 0.55/0.74  % /export/starexec/sandbox/solver/bin/fo/fo4.sh running for 50s
% 149.27/21.88  % Solved by fo/fo5.sh.
% 149.27/21.88  % done 14688 iterations in 21.115s
% 149.27/21.88  % SZS status Theorem for '/export/starexec/sandbox/benchmark/theBenchmark.p'
% 149.27/21.88  % SZS output start Refutation
% 149.27/21.88  thf(nil_type, type, nil: $i).
% 149.27/21.88  thf(frontsegP_type, type, frontsegP: $i > $i > $o).
% 149.27/21.88  thf(cons_type, type, cons: $i > $i > $i).
% 149.27/21.88  thf(sk2_type, type, sk2: $i).
% 149.27/21.88  thf(sk4_type, type, sk4: $i).
% 149.27/21.88  thf(duplicatefreeP_type, type, duplicatefreeP: $i > $o).
% 149.27/21.88  thf(skaf42_type, type, skaf42: $i > $i > $i).
% 149.27/21.88  thf(tl_type, type, tl: $i > $i).
% 149.27/21.88  thf(memberP_type, type, memberP: $i > $i > $o).
% 149.27/21.88  thf(skac3_type, type, skac3: $i).
% 149.27/21.88  thf(hd_type, type, hd: $i > $i).
% 149.27/21.88  thf(ssItem_type, type, ssItem: $i > $o).
% 149.27/21.88  thf(skaf43_type, type, skaf43: $i > $i > $i).
% 149.27/21.88  thf(skaf46_type, type, skaf46: $i > $i > $i).
% 149.27/21.88  thf(skaf82_type, type, skaf82: $i > $i).
% 149.27/21.88  thf(sk5_type, type, sk5: $i).
% 149.27/21.88  thf(rearsegP_type, type, rearsegP: $i > $i > $o).
% 149.27/21.88  thf(sk3_type, type, sk3: $i).
% 149.27/21.88  thf(neq_type, type, neq: $i > $i > $o).
% 149.27/21.88  thf(app_type, type, app: $i > $i > $i).
% 149.27/21.88  thf(ssList_type, type, ssList: $i > $o).
% 149.27/21.88  thf(sk1_type, type, sk1: $i).
% 149.27/21.88  thf(segmentP_type, type, segmentP: $i > $i > $o).
% 149.27/21.88  thf(co1_12, conjecture,
% 149.27/21.88    (~( ( ~( segmentP @ sk2 @ sk1 ) ) | ( ~( neq @ sk1 @ nil ) ) ))).
% 149.27/21.88  thf(zf_stmt_0, negated_conjecture,
% 149.27/21.88    (( ~( segmentP @ sk2 @ sk1 ) ) | ( ~( neq @ sk1 @ nil ) )),
% 149.27/21.88    inference('cnf.neg', [status(esa)], [co1_12])).
% 149.27/21.88  thf(zip_derived_cl196, plain,
% 149.27/21.88      ((~ (segmentP @ sk2 @ sk1) | ~ (neq @ sk1 @ nil))),
% 149.27/21.88      inference('cnf', [status(esa)], [zf_stmt_0])).
% 149.27/21.88  thf(co1_6, conjecture, (( sk1 ) != ( sk3 ))).
% 149.27/21.88  thf(zf_stmt_1, negated_conjecture, (( sk1 ) = ( sk3 )),
% 149.27/21.88    inference('cnf.neg', [status(esa)], [co1_6])).
% 149.27/21.88  thf(zip_derived_cl190, plain, (((sk1) = (sk3))),
% 149.27/21.88      inference('cnf', [status(esa)], [zf_stmt_1])).
% 149.27/21.88  thf(zip_derived_cl190, plain, (((sk1) = (sk3))),
% 149.27/21.88      inference('cnf', [status(esa)], [zf_stmt_1])).
% 149.27/21.88  thf(zip_derived_cl202, plain,
% 149.27/21.88      ((~ (segmentP @ sk2 @ sk3) | ~ (neq @ sk3 @ nil))),
% 149.27/21.88      inference('demod', [status(thm)],
% 149.27/21.88                [zip_derived_cl196, zip_derived_cl190, zip_derived_cl190])).
% 149.27/21.88  thf(clause100, axiom,
% 149.27/21.88    (( ~( ssList @ U ) ) | ( ~( ssList @ V ) ) | ( neq @ V @ U ) | 
% 149.27/21.89     ( ( V ) = ( U ) ))).
% 149.27/21.89  thf(zip_derived_cl99, plain,
% 149.27/21.89      (![X0 : $i, X1 : $i]:
% 149.27/21.89         (~ (ssList @ X0) | ~ (ssList @ X1) |  (neq @ X1 @ X0) | ((X1) = (X0)))),
% 149.27/21.89      inference('cnf', [status(esa)], [clause100])).
% 149.27/21.89  thf(clause8, axiom, (ssList @ nil)).
% 149.27/21.89  thf(zip_derived_cl7, plain, ( (ssList @ nil)),
% 149.27/21.89      inference('cnf', [status(esa)], [clause8])).
% 149.27/21.89  thf(zip_derived_cl712, plain,
% 149.27/21.89      (![X0 : $i]: (((X0) = (nil)) |  (neq @ X0 @ nil) | ~ (ssList @ X0))),
% 149.27/21.89      inference('sup+', [status(thm)], [zip_derived_cl99, zip_derived_cl7])).
% 149.27/21.89  thf(co1_10, conjecture,
% 149.27/21.89    (~( ( ~( neq @ sk4 @ nil ) ) | ( ( cons @ sk5 @ nil ) = ( sk3 ) ) ))).
% 149.27/21.89  thf(zf_stmt_2, negated_conjecture,
% 149.27/21.89    (( ~( neq @ sk4 @ nil ) ) | ( ( cons @ sk5 @ nil ) = ( sk3 ) )),
% 149.27/21.89    inference('cnf.neg', [status(esa)], [co1_10])).
% 149.27/21.89  thf(zip_derived_cl194, plain,
% 149.27/21.89      ((~ (neq @ sk4 @ nil) | ((cons @ sk5 @ nil) = (sk3)))),
% 149.27/21.89      inference('cnf', [status(esa)], [zf_stmt_2])).
% 149.27/21.89  thf(co1_5, conjecture, (( sk2 ) != ( sk4 ))).
% 149.27/21.89  thf(zf_stmt_3, negated_conjecture, (( sk2 ) = ( sk4 )),
% 149.27/21.89    inference('cnf.neg', [status(esa)], [co1_5])).
% 149.27/21.89  thf(zip_derived_cl189, plain, (((sk2) = (sk4))),
% 149.27/21.89      inference('cnf', [status(esa)], [zf_stmt_3])).
% 149.27/21.89  thf(zip_derived_cl205, plain,
% 149.27/21.89      ((~ (neq @ sk2 @ nil) | ((cons @ sk5 @ nil) = (sk3)))),
% 149.27/21.89      inference('demod', [status(thm)], [zip_derived_cl194, zip_derived_cl189])).
% 149.27/21.89  thf(zip_derived_cl922, plain,
% 149.27/21.89      ((~ (ssList @ sk2) | ((sk2) = (nil)) | ((cons @ sk5 @ nil) = (sk3)))),
% 149.27/21.89      inference('sup-', [status(thm)], [zip_derived_cl712, zip_derived_cl205])).
% 149.27/21.89  thf(co1_2, conjecture, (~( ssList @ sk2 ))).
% 149.27/21.89  thf(zf_stmt_4, negated_conjecture, (ssList @ sk2),
% 149.27/21.89    inference('cnf.neg', [status(esa)], [co1_2])).
% 149.27/21.89  thf(zip_derived_cl186, plain, ( (ssList @ sk2)),
% 149.27/21.89      inference('cnf', [status(esa)], [zf_stmt_4])).
% 149.27/21.89  thf(zip_derived_cl929, plain,
% 149.27/21.89      ((((sk2) = (nil)) | ((cons @ sk5 @ nil) = (sk3)))),
% 149.27/21.89      inference('demod', [status(thm)], [zip_derived_cl922, zip_derived_cl186])).
% 149.27/21.89  thf(co1_7, conjecture, (~( ( ( nil ) != ( sk4 ) ) | ( ( nil ) = ( sk3 ) ) ))).
% 149.27/21.89  thf(zf_stmt_5, negated_conjecture,
% 149.27/21.89    (( ( nil ) != ( sk4 ) ) | ( ( nil ) = ( sk3 ) )),
% 149.27/21.89    inference('cnf.neg', [status(esa)], [co1_7])).
% 149.27/21.89  thf(zip_derived_cl191, plain, ((((nil) != (sk4)) | ((nil) = (sk3)))),
% 149.27/21.89      inference('cnf', [status(esa)], [zf_stmt_5])).
% 149.27/21.89  thf(zip_derived_cl189, plain, (((sk2) = (sk4))),
% 149.27/21.89      inference('cnf', [status(esa)], [zf_stmt_3])).
% 149.27/21.89  thf(zip_derived_cl200, plain, ((((nil) != (sk2)) | ((nil) = (sk3)))),
% 149.27/21.89      inference('demod', [status(thm)], [zip_derived_cl191, zip_derived_cl189])).
% 149.27/21.89  thf(co1_8, conjecture,
% 149.27/21.89    (~( ( ( nil ) != ( sk1 ) ) | ( ( nil ) != ( sk2 ) ) ))).
% 149.27/21.89  thf(zf_stmt_6, negated_conjecture,
% 149.27/21.89    (( ( nil ) != ( sk1 ) ) | ( ( nil ) != ( sk2 ) )),
% 149.27/21.89    inference('cnf.neg', [status(esa)], [co1_8])).
% 149.27/21.89  thf(zip_derived_cl192, plain, ((((nil) != (sk1)) | ((nil) != (sk2)))),
% 149.27/21.89      inference('cnf', [status(esa)], [zf_stmt_6])).
% 149.27/21.89  thf(zip_derived_cl190, plain, (((sk1) = (sk3))),
% 149.27/21.89      inference('cnf', [status(esa)], [zf_stmt_1])).
% 149.27/21.89  thf(zip_derived_cl199, plain, ((((nil) != (sk3)) | ((nil) != (sk2)))),
% 149.27/21.89      inference('demod', [status(thm)], [zip_derived_cl192, zip_derived_cl190])).
% 149.27/21.89  thf(zip_derived_cl201, plain, (((nil) != (sk2))),
% 149.27/21.89      inference('clc', [status(thm)], [zip_derived_cl200, zip_derived_cl199])).
% 149.27/21.89  thf(zip_derived_cl930, plain, (((cons @ sk5 @ nil) = (sk3))),
% 149.27/21.89      inference('simplify_reflect-', [status(thm)],
% 149.27/21.89                [zip_derived_cl929, zip_derived_cl201])).
% 149.27/21.89  thf(clause96, axiom,
% 149.27/21.89    (( ~( ssItem @ U ) ) | ( ~( ssList @ V ) ) | 
% 149.27/21.89     ( ( tl @ ( cons @ U @ V ) ) = ( V ) ))).
% 149.27/21.89  thf(zip_derived_cl95, plain,
% 149.27/21.89      (![X0 : $i, X1 : $i]:
% 149.27/21.89         (~ (ssItem @ X0) | ~ (ssList @ X1) | ((tl @ (cons @ X0 @ X1)) = (X1)))),
% 149.27/21.89      inference('cnf', [status(esa)], [clause96])).
% 149.27/21.89  thf(zip_derived_cl940, plain,
% 149.27/21.89      ((((tl @ sk3) = (nil)) | ~ (ssList @ nil) | ~ (ssItem @ sk5))),
% 149.27/21.89      inference('sup+', [status(thm)], [zip_derived_cl930, zip_derived_cl95])).
% 149.27/21.89  thf(zip_derived_cl7, plain, ( (ssList @ nil)),
% 149.27/21.89      inference('cnf', [status(esa)], [clause8])).
% 149.27/21.89  thf(zip_derived_cl712, plain,
% 149.27/21.89      (![X0 : $i]: (((X0) = (nil)) |  (neq @ X0 @ nil) | ~ (ssList @ X0))),
% 149.27/21.89      inference('sup+', [status(thm)], [zip_derived_cl99, zip_derived_cl7])).
% 149.27/21.89  thf(co1_9, conjecture, (~( ( ~( neq @ sk4 @ nil ) ) | ( ssItem @ sk5 ) ))).
% 149.27/21.89  thf(zf_stmt_7, negated_conjecture,
% 149.27/21.89    (( ~( neq @ sk4 @ nil ) ) | ( ssItem @ sk5 )),
% 149.27/21.89    inference('cnf.neg', [status(esa)], [co1_9])).
% 149.27/21.89  thf(zip_derived_cl193, plain, ((~ (neq @ sk4 @ nil) |  (ssItem @ sk5))),
% 149.27/21.89      inference('cnf', [status(esa)], [zf_stmt_7])).
% 149.27/21.89  thf(zip_derived_cl189, plain, (((sk2) = (sk4))),
% 149.27/21.89      inference('cnf', [status(esa)], [zf_stmt_3])).
% 149.27/21.89  thf(zip_derived_cl203, plain, ((~ (neq @ sk2 @ nil) |  (ssItem @ sk5))),
% 149.27/21.89      inference('demod', [status(thm)], [zip_derived_cl193, zip_derived_cl189])).
% 149.27/21.89  thf(zip_derived_cl920, plain,
% 149.27/21.89      ((~ (ssList @ sk2) | ((sk2) = (nil)) |  (ssItem @ sk5))),
% 149.27/21.89      inference('sup-', [status(thm)], [zip_derived_cl712, zip_derived_cl203])).
% 149.27/21.89  thf(zip_derived_cl186, plain, ( (ssList @ sk2)),
% 149.27/21.89      inference('cnf', [status(esa)], [zf_stmt_4])).
% 149.27/21.89  thf(zip_derived_cl925, plain, ((((sk2) = (nil)) |  (ssItem @ sk5))),
% 149.27/21.89      inference('demod', [status(thm)], [zip_derived_cl920, zip_derived_cl186])).
% 149.27/21.89  thf(zip_derived_cl201, plain, (((nil) != (sk2))),
% 149.27/21.89      inference('clc', [status(thm)], [zip_derived_cl200, zip_derived_cl199])).
% 149.27/21.89  thf(zip_derived_cl926, plain, ( (ssItem @ sk5)),
% 149.27/21.89      inference('simplify_reflect-', [status(thm)],
% 149.27/21.89                [zip_derived_cl925, zip_derived_cl201])).
% 149.27/21.89  thf(zip_derived_cl955, plain, (((tl @ sk3) = (nil))),
% 149.27/21.89      inference('demod', [status(thm)],
% 149.27/21.89                [zip_derived_cl940, zip_derived_cl7, zip_derived_cl926])).
% 149.27/21.89  thf(zip_derived_cl1006, plain,
% 149.27/21.89      ((~ (segmentP @ sk2 @ sk3) | ~ (neq @ sk3 @ (tl @ sk3)))),
% 149.27/21.89      inference('demod', [status(thm)], [zip_derived_cl202, zip_derived_cl955])).
% 149.27/21.89  thf(zip_derived_cl7, plain, ( (ssList @ nil)),
% 149.27/21.89      inference('cnf', [status(esa)], [clause8])).
% 149.27/21.89  thf(zip_derived_cl955, plain, (((tl @ sk3) = (nil))),
% 149.27/21.89      inference('demod', [status(thm)],
% 149.27/21.89                [zip_derived_cl940, zip_derived_cl7, zip_derived_cl926])).
% 149.27/21.89  thf(zip_derived_cl976, plain, ( (ssList @ (tl @ sk3))),
% 149.27/21.89      inference('demod', [status(thm)], [zip_derived_cl7, zip_derived_cl955])).
% 149.27/21.89  thf(zip_derived_cl99, plain,
% 149.27/21.89      (![X0 : $i, X1 : $i]:
% 149.27/21.89         (~ (ssList @ X0) | ~ (ssList @ X1) |  (neq @ X1 @ X0) | ((X1) = (X0)))),
% 149.27/21.89      inference('cnf', [status(esa)], [clause100])).
% 149.27/21.89  thf(co1_3, conjecture, (~( ssList @ sk3 ))).
% 149.27/21.89  thf(zf_stmt_8, negated_conjecture, (ssList @ sk3),
% 149.27/21.89    inference('cnf.neg', [status(esa)], [co1_3])).
% 149.27/21.89  thf(zip_derived_cl187, plain, ( (ssList @ sk3)),
% 149.27/21.89      inference('cnf', [status(esa)], [zf_stmt_8])).
% 149.27/21.89  thf(zip_derived_cl777, plain,
% 149.27/21.89      (![X0 : $i]: (((sk3) = (X0)) |  (neq @ sk3 @ X0) | ~ (ssList @ X0))),
% 149.27/21.89      inference('sup+', [status(thm)], [zip_derived_cl99, zip_derived_cl187])).
% 149.27/21.89  thf(zip_derived_cl1930, plain,
% 149.27/21.89      (( (neq @ sk3 @ (tl @ sk3)) | ((sk3) = (tl @ sk3)))),
% 149.27/21.89      inference('sup-', [status(thm)], [zip_derived_cl976, zip_derived_cl777])).
% 149.27/21.89  thf(zip_derived_cl930, plain, (((cons @ sk5 @ nil) = (sk3))),
% 149.27/21.89      inference('simplify_reflect-', [status(thm)],
% 149.27/21.89                [zip_derived_cl929, zip_derived_cl201])).
% 149.27/21.89  thf(clause99, axiom,
% 149.27/21.89    (( ( cons @ U @ V ) != ( V ) ) | ( ~( ssItem @ U ) ) | ( ~( ssList @ V ) ))).
% 149.27/21.89  thf(zip_derived_cl98, plain,
% 149.27/21.89      (![X0 : $i, X1 : $i]:
% 149.27/21.89         (((cons @ X1 @ X0) != (X0)) | ~ (ssItem @ X1) | ~ (ssList @ X0))),
% 149.27/21.89      inference('cnf', [status(esa)], [clause99])).
% 149.27/21.89  thf(zip_derived_cl943, plain,
% 149.27/21.89      ((((sk3) != (nil)) | ~ (ssList @ nil) | ~ (ssItem @ sk5))),
% 149.27/21.89      inference('sup-', [status(thm)], [zip_derived_cl930, zip_derived_cl98])).
% 149.27/21.89  thf(zip_derived_cl7, plain, ( (ssList @ nil)),
% 149.27/21.89      inference('cnf', [status(esa)], [clause8])).
% 149.27/21.89  thf(zip_derived_cl926, plain, ( (ssItem @ sk5)),
% 149.27/21.89      inference('simplify_reflect-', [status(thm)],
% 149.27/21.89                [zip_derived_cl925, zip_derived_cl201])).
% 149.27/21.89  thf(zip_derived_cl958, plain, (((sk3) != (nil))),
% 149.27/21.89      inference('demod', [status(thm)],
% 149.27/21.89                [zip_derived_cl943, zip_derived_cl7, zip_derived_cl926])).
% 149.27/21.89  thf(zip_derived_cl955, plain, (((tl @ sk3) = (nil))),
% 149.27/21.89      inference('demod', [status(thm)],
% 149.27/21.89                [zip_derived_cl940, zip_derived_cl7, zip_derived_cl926])).
% 149.27/21.89  thf(zip_derived_cl1031, plain, (((sk3) != (tl @ sk3))),
% 149.27/21.89      inference('demod', [status(thm)], [zip_derived_cl958, zip_derived_cl955])).
% 149.27/21.89  thf(zip_derived_cl1933, plain, ( (neq @ sk3 @ (tl @ sk3))),
% 149.27/21.89      inference('simplify_reflect-', [status(thm)],
% 149.27/21.89                [zip_derived_cl1930, zip_derived_cl1031])).
% 149.27/21.89  thf(zip_derived_cl1935, plain, (~ (segmentP @ sk2 @ sk3)),
% 149.27/21.89      inference('demod', [status(thm)],
% 149.27/21.89                [zip_derived_cl1006, zip_derived_cl1933])).
% 149.27/21.89  thf(zip_derived_cl712, plain,
% 149.27/21.89      (![X0 : $i]: (((X0) = (nil)) |  (neq @ X0 @ nil) | ~ (ssList @ X0))),
% 149.27/21.89      inference('sup+', [status(thm)], [zip_derived_cl99, zip_derived_cl7])).
% 149.27/21.89  thf(co1_11, conjecture,
% 149.27/21.89    (~( ( ~( neq @ sk4 @ nil ) ) | ( memberP @ sk4 @ sk5 ) ))).
% 149.27/21.89  thf(zf_stmt_9, negated_conjecture,
% 149.27/21.89    (( ~( neq @ sk4 @ nil ) ) | ( memberP @ sk4 @ sk5 )),
% 149.27/21.89    inference('cnf.neg', [status(esa)], [co1_11])).
% 149.27/21.89  thf(zip_derived_cl195, plain,
% 149.27/21.89      ((~ (neq @ sk4 @ nil) |  (memberP @ sk4 @ sk5))),
% 149.27/21.89      inference('cnf', [status(esa)], [zf_stmt_9])).
% 149.27/21.89  thf(zip_derived_cl189, plain, (((sk2) = (sk4))),
% 149.27/21.89      inference('cnf', [status(esa)], [zf_stmt_3])).
% 149.27/21.89  thf(zip_derived_cl189, plain, (((sk2) = (sk4))),
% 149.27/21.89      inference('cnf', [status(esa)], [zf_stmt_3])).
% 149.27/21.89  thf(zip_derived_cl204, plain,
% 149.27/21.89      ((~ (neq @ sk2 @ nil) |  (memberP @ sk2 @ sk5))),
% 149.27/21.89      inference('demod', [status(thm)],
% 149.27/21.89                [zip_derived_cl195, zip_derived_cl189, zip_derived_cl189])).
% 149.27/21.89  thf(zip_derived_cl921, plain,
% 149.27/21.89      ((~ (ssList @ sk2) | ((sk2) = (nil)) |  (memberP @ sk2 @ sk5))),
% 149.27/21.89      inference('sup-', [status(thm)], [zip_derived_cl712, zip_derived_cl204])).
% 149.27/21.89  thf(zip_derived_cl186, plain, ( (ssList @ sk2)),
% 149.27/21.89      inference('cnf', [status(esa)], [zf_stmt_4])).
% 149.27/21.89  thf(zip_derived_cl927, plain, ((((sk2) = (nil)) |  (memberP @ sk2 @ sk5))),
% 149.27/21.89      inference('demod', [status(thm)], [zip_derived_cl921, zip_derived_cl186])).
% 149.27/21.89  thf(zip_derived_cl201, plain, (((nil) != (sk2))),
% 149.27/21.89      inference('clc', [status(thm)], [zip_derived_cl200, zip_derived_cl199])).
% 149.27/21.89  thf(zip_derived_cl928, plain, ( (memberP @ sk2 @ sk5)),
% 149.27/21.89      inference('simplify_reflect-', [status(thm)],
% 149.27/21.89                [zip_derived_cl927, zip_derived_cl201])).
% 149.27/21.89  thf(zip_derived_cl930, plain, (((cons @ sk5 @ nil) = (sk3))),
% 149.27/21.89      inference('simplify_reflect-', [status(thm)],
% 149.27/21.89                [zip_derived_cl929, zip_derived_cl201])).
% 149.27/21.89  thf(clause97, axiom,
% 149.27/21.89    (( ~( ssItem @ U ) ) | ( ~( ssList @ V ) ) | 
% 149.27/21.89     ( ( hd @ ( cons @ U @ V ) ) = ( U ) ))).
% 149.27/21.89  thf(zip_derived_cl96, plain,
% 149.27/21.89      (![X0 : $i, X1 : $i]:
% 149.27/21.89         (~ (ssItem @ X0) | ~ (ssList @ X1) | ((hd @ (cons @ X0 @ X1)) = (X0)))),
% 149.27/21.89      inference('cnf', [status(esa)], [clause97])).
% 149.27/21.89  thf(zip_derived_cl941, plain,
% 149.27/21.89      ((((hd @ sk3) = (sk5)) | ~ (ssList @ nil) | ~ (ssItem @ sk5))),
% 149.27/21.89      inference('sup+', [status(thm)], [zip_derived_cl930, zip_derived_cl96])).
% 149.27/21.89  thf(zip_derived_cl7, plain, ( (ssList @ nil)),
% 149.27/21.89      inference('cnf', [status(esa)], [clause8])).
% 149.27/21.89  thf(zip_derived_cl926, plain, ( (ssItem @ sk5)),
% 149.27/21.89      inference('simplify_reflect-', [status(thm)],
% 149.27/21.89                [zip_derived_cl925, zip_derived_cl201])).
% 149.27/21.89  thf(zip_derived_cl956, plain, (((hd @ sk3) = (sk5))),
% 149.27/21.89      inference('demod', [status(thm)],
% 149.27/21.89                [zip_derived_cl941, zip_derived_cl7, zip_derived_cl926])).
% 149.27/21.89  thf(zip_derived_cl1019, plain, ( (memberP @ sk2 @ (hd @ sk3))),
% 149.27/21.89      inference('demod', [status(thm)], [zip_derived_cl928, zip_derived_cl956])).
% 149.27/21.89  thf(clause169, axiom,
% 149.27/21.89    (( ~( memberP @ U @ V ) ) | ( ~( ssItem @ V ) ) | ( ~( ssList @ U ) ) | 
% 149.27/21.89     ( ( app @ ( skaf42 @ U @ V ) @ ( cons @ V @ ( skaf43 @ V @ U ) ) ) = ( U ) ))).
% 149.27/21.89  thf(zip_derived_cl168, plain,
% 149.27/21.89      (![X0 : $i, X1 : $i]:
% 149.27/21.89         (~ (memberP @ X0 @ X1)
% 149.27/21.89          | ~ (ssItem @ X1)
% 149.27/21.89          | ~ (ssList @ X0)
% 149.27/21.89          | ((app @ (skaf42 @ X0 @ X1) @ (cons @ X1 @ (skaf43 @ X1 @ X0)))
% 149.27/21.89              = (X0)))),
% 149.27/21.89      inference('cnf', [status(esa)], [clause169])).
% 149.27/21.89  thf(zip_derived_cl4155, plain,
% 149.27/21.89      ((((app @ (skaf42 @ sk2 @ (hd @ sk3)) @ 
% 149.27/21.89          (cons @ (hd @ sk3) @ (skaf43 @ (hd @ sk3) @ sk2))) = (sk2))
% 149.27/21.89        | ~ (ssList @ sk2)
% 149.27/21.89        | ~ (ssItem @ (hd @ sk3)))),
% 149.27/21.89      inference('sup-', [status(thm)], [zip_derived_cl1019, zip_derived_cl168])).
% 149.27/21.89  thf(zip_derived_cl186, plain, ( (ssList @ sk2)),
% 149.27/21.89      inference('cnf', [status(esa)], [zf_stmt_4])).
% 149.27/21.89  thf(zip_derived_cl926, plain, ( (ssItem @ sk5)),
% 149.27/21.89      inference('simplify_reflect-', [status(thm)],
% 149.27/21.89                [zip_derived_cl925, zip_derived_cl201])).
% 149.27/21.89  thf(zip_derived_cl956, plain, (((hd @ sk3) = (sk5))),
% 149.27/21.89      inference('demod', [status(thm)],
% 149.27/21.89                [zip_derived_cl941, zip_derived_cl7, zip_derived_cl926])).
% 149.27/21.89  thf(zip_derived_cl1018, plain, ( (ssItem @ (hd @ sk3))),
% 149.27/21.89      inference('demod', [status(thm)], [zip_derived_cl926, zip_derived_cl956])).
% 149.27/21.89  thf(zip_derived_cl4159, plain,
% 149.27/21.89      (((app @ (skaf42 @ sk2 @ (hd @ sk3)) @ 
% 149.27/21.89         (cons @ (hd @ sk3) @ (skaf43 @ (hd @ sk3) @ sk2))) = (sk2))),
% 149.27/21.89      inference('demod', [status(thm)],
% 149.27/21.89                [zip_derived_cl4155, zip_derived_cl186, zip_derived_cl1018])).
% 149.27/21.89  thf(clause120, axiom,
% 149.27/21.89    (( ~( ssItem @ U ) ) | ( ~( ssList @ V ) ) | 
% 149.27/21.89     ( ( app @ ( cons @ U @ nil ) @ V ) = ( cons @ U @ V ) ))).
% 149.27/21.89  thf(zip_derived_cl119, plain,
% 149.27/21.89      (![X0 : $i, X1 : $i]:
% 149.27/21.89         (~ (ssItem @ X0)
% 149.27/21.89          | ~ (ssList @ X1)
% 149.27/21.89          | ((app @ (cons @ X0 @ nil) @ X1) = (cons @ X0 @ X1)))),
% 149.27/21.89      inference('cnf', [status(esa)], [clause120])).
% 149.27/21.89  thf(zip_derived_cl955, plain, (((tl @ sk3) = (nil))),
% 149.27/21.89      inference('demod', [status(thm)],
% 149.27/21.89                [zip_derived_cl940, zip_derived_cl7, zip_derived_cl926])).
% 149.27/21.89  thf(zip_derived_cl1769, plain,
% 149.27/21.89      (![X0 : $i, X1 : $i]:
% 149.27/21.89         (~ (ssItem @ X0)
% 149.27/21.89          | ~ (ssList @ X1)
% 149.27/21.89          | ((app @ (cons @ X0 @ (tl @ sk3)) @ X1) = (cons @ X0 @ X1)))),
% 149.27/21.89      inference('demod', [status(thm)], [zip_derived_cl119, zip_derived_cl955])).
% 149.27/21.89  thf(clause149, axiom,
% 149.27/21.89    (( ~( ssList @ U ) ) | ( ~( ssList @ V ) ) | ( ~( ssList @ W ) ) | 
% 149.27/21.89     ( ( app @ ( app @ W @ V ) @ U ) = ( app @ W @ ( app @ V @ U ) ) ))).
% 149.27/21.89  thf(zip_derived_cl148, plain,
% 149.27/21.89      (![X0 : $i, X1 : $i, X2 : $i]:
% 149.27/21.89         (~ (ssList @ X0)
% 149.27/21.89          | ~ (ssList @ X1)
% 149.27/21.89          | ~ (ssList @ X2)
% 149.27/21.89          | ((app @ (app @ X2 @ X1) @ X0) = (app @ X2 @ (app @ X1 @ X0))))),
% 149.27/21.89      inference('cnf', [status(esa)], [clause149])).
% 149.27/21.89  thf(clause173, axiom,
% 149.27/21.89    (( ( app @ ( app @ U @ V ) @ W ) != ( X ) ) | ( ~( ssList @ W ) ) | 
% 149.27/21.89     ( ~( ssList @ U ) ) | ( ~( ssList @ V ) ) | ( ~( ssList @ X ) ) | 
% 149.27/21.89     ( segmentP @ X @ V ))).
% 149.27/21.89  thf(zip_derived_cl172, plain,
% 149.27/21.89      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i]:
% 149.27/21.89         (((app @ (app @ X1 @ X2) @ X3) != (X0))
% 149.27/21.89          | ~ (ssList @ X3)
% 149.27/21.89          | ~ (ssList @ X1)
% 149.27/21.89          | ~ (ssList @ X2)
% 149.27/21.89          | ~ (ssList @ X0)
% 149.27/21.89          |  (segmentP @ X0 @ X2))),
% 149.27/21.89      inference('cnf', [status(esa)], [clause173])).
% 149.27/21.89  thf(zip_derived_cl4342, plain,
% 149.27/21.89      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i]:
% 149.27/21.89         (((app @ X2 @ (app @ X1 @ X0)) != (X3))
% 149.27/21.89          | ~ (ssList @ X2)
% 149.27/21.89          | ~ (ssList @ X1)
% 149.27/21.89          | ~ (ssList @ X0)
% 149.27/21.89          |  (segmentP @ X3 @ X1)
% 149.27/21.89          | ~ (ssList @ X3)
% 149.27/21.89          | ~ (ssList @ X1)
% 149.27/21.89          | ~ (ssList @ X2)
% 149.27/21.89          | ~ (ssList @ X0))),
% 149.27/21.89      inference('sup-', [status(thm)], [zip_derived_cl148, zip_derived_cl172])).
% 149.27/21.89  thf(zip_derived_cl4364, plain,
% 149.27/21.89      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i]:
% 149.27/21.89         (~ (ssList @ X3)
% 149.27/21.89          |  (segmentP @ X3 @ X1)
% 149.27/21.89          | ~ (ssList @ X0)
% 149.27/21.89          | ~ (ssList @ X1)
% 149.27/21.89          | ~ (ssList @ X2)
% 149.27/21.89          | ((app @ X2 @ (app @ X1 @ X0)) != (X3)))),
% 149.27/21.89      inference('simplify', [status(thm)], [zip_derived_cl4342])).
% 149.27/21.89  thf(zip_derived_cl6005, plain,
% 149.27/21.89      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i]:
% 149.27/21.89         (((app @ X3 @ (cons @ X1 @ X0)) != (X2))
% 149.27/21.89          | ~ (ssList @ X0)
% 149.27/21.89          | ~ (ssItem @ X1)
% 149.27/21.89          | ~ (ssList @ X3)
% 149.27/21.89          | ~ (ssList @ (cons @ X1 @ (tl @ sk3)))
% 149.27/21.89          | ~ (ssList @ X0)
% 149.27/21.89          |  (segmentP @ X2 @ (cons @ X1 @ (tl @ sk3)))
% 149.27/21.89          | ~ (ssList @ X2))),
% 149.27/21.89      inference('sup-', [status(thm)], [zip_derived_cl1769, zip_derived_cl4364])).
% 149.27/21.89  thf(zip_derived_cl6027, plain,
% 149.27/21.89      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i]:
% 149.27/21.89         (~ (ssList @ X2)
% 149.27/21.89          |  (segmentP @ X2 @ (cons @ X1 @ (tl @ sk3)))
% 149.27/21.89          | ~ (ssList @ (cons @ X1 @ (tl @ sk3)))
% 149.27/21.89          | ~ (ssList @ X3)
% 149.27/21.89          | ~ (ssItem @ X1)
% 149.27/21.89          | ~ (ssList @ X0)
% 149.27/21.89          | ((app @ X3 @ (cons @ X1 @ X0)) != (X2)))),
% 149.27/21.89      inference('simplify', [status(thm)], [zip_derived_cl6005])).
% 149.27/21.89  thf(clause60, axiom, (( ~( ssList @ U ) ) | ( frontsegP @ U @ nil ))).
% 149.27/21.89  thf(zip_derived_cl59, plain,
% 149.27/21.89      (![X0 : $i]: (~ (ssList @ X0) |  (frontsegP @ X0 @ nil))),
% 149.27/21.89      inference('cnf', [status(esa)], [clause60])).
% 149.27/21.89  thf(zip_derived_cl955, plain, (((tl @ sk3) = (nil))),
% 149.27/21.89      inference('demod', [status(thm)],
% 149.27/21.89                [zip_derived_cl940, zip_derived_cl7, zip_derived_cl926])).
% 149.27/21.89  thf(zip_derived_cl980, plain,
% 149.27/21.89      (![X0 : $i]: (~ (ssList @ X0) |  (frontsegP @ X0 @ (tl @ sk3)))),
% 149.27/21.89      inference('demod', [status(thm)], [zip_derived_cl59, zip_derived_cl955])).
% 149.27/21.89  thf(clause59, axiom, (( ~( ssList @ U ) ) | ( rearsegP @ U @ U ))).
% 149.27/21.89  thf(zip_derived_cl58, plain,
% 149.27/21.89      (![X0 : $i]: (~ (ssList @ X0) |  (rearsegP @ X0 @ X0))),
% 149.27/21.89      inference('cnf', [status(esa)], [clause59])).
% 149.27/21.89  thf(clause131, axiom,
% 149.27/21.89    (( ~( rearsegP @ U @ V ) ) | ( ~( ssList @ V ) ) | ( ~( ssList @ U ) ) | 
% 149.27/21.89     ( ( app @ ( skaf46 @ U @ V ) @ V ) = ( U ) ))).
% 149.27/21.89  thf(zip_derived_cl130, plain,
% 149.27/21.89      (![X0 : $i, X1 : $i]:
% 149.27/21.89         (~ (rearsegP @ X0 @ X1)
% 149.27/21.89          | ~ (ssList @ X1)
% 149.27/21.89          | ~ (ssList @ X0)
% 149.27/21.89          | ((app @ (skaf46 @ X0 @ X1) @ X1) = (X0)))),
% 149.27/21.89      inference('cnf', [status(esa)], [clause131])).
% 149.27/21.89  thf(zip_derived_cl2251, plain,
% 149.27/21.89      (![X0 : $i]:
% 149.27/21.89         (~ (ssList @ X0)
% 149.27/21.89          | ((app @ (skaf46 @ X0 @ X0) @ X0) = (X0))
% 149.27/21.89          | ~ (ssList @ X0)
% 149.27/21.89          | ~ (ssList @ X0))),
% 149.27/21.89      inference('sup-', [status(thm)], [zip_derived_cl58, zip_derived_cl130])).
% 149.27/21.89  thf(zip_derived_cl2255, plain,
% 149.27/21.89      (![X0 : $i]: (((app @ (skaf46 @ X0 @ X0) @ X0) = (X0)) | ~ (ssList @ X0))),
% 149.27/21.89      inference('simplify', [status(thm)], [zip_derived_cl2251])).
% 149.27/21.89  thf(clause61, axiom, (( ~( ssList @ U ) ) | ( frontsegP @ U @ U ))).
% 149.27/21.89  thf(zip_derived_cl60, plain,
% 149.27/21.89      (![X0 : $i]: (~ (ssList @ X0) |  (frontsegP @ X0 @ X0))),
% 149.27/21.89      inference('cnf', [status(esa)], [clause61])).
% 149.27/21.89  thf(clause137, axiom,
% 149.27/21.89    (( ~( frontsegP @ U @ V ) ) | ( ~( ssList @ W ) ) | ( ~( ssList @ V ) ) | 
% 149.27/21.89     ( ~( ssList @ U ) ) | ( frontsegP @ ( app @ U @ W ) @ V ))).
% 149.27/21.89  thf(zip_derived_cl136, plain,
% 149.27/21.89      (![X0 : $i, X1 : $i, X2 : $i]:
% 149.27/21.89         (~ (frontsegP @ X0 @ X1)
% 149.27/21.89          | ~ (ssList @ X2)
% 149.27/21.89          | ~ (ssList @ X1)
% 149.27/21.89          | ~ (ssList @ X0)
% 149.27/21.89          |  (frontsegP @ (app @ X0 @ X2) @ X1))),
% 149.27/21.89      inference('cnf', [status(esa)], [clause137])).
% 149.27/21.89  thf(zip_derived_cl2472, plain,
% 149.27/21.89      (![X0 : $i, X1 : $i]:
% 149.27/21.89         (~ (ssList @ X0)
% 149.27/21.89          |  (frontsegP @ (app @ X0 @ X1) @ X0)
% 149.27/21.89          | ~ (ssList @ X0)
% 149.27/21.89          | ~ (ssList @ X0)
% 149.27/21.89          | ~ (ssList @ X1))),
% 149.27/21.89      inference('sup-', [status(thm)], [zip_derived_cl60, zip_derived_cl136])).
% 149.27/21.89  thf(zip_derived_cl2475, plain,
% 149.27/21.89      (![X0 : $i, X1 : $i]:
% 149.27/21.89         (~ (ssList @ X1)
% 149.27/21.89          |  (frontsegP @ (app @ X0 @ X1) @ X0)
% 149.27/21.89          | ~ (ssList @ X0))),
% 149.27/21.89      inference('simplify', [status(thm)], [zip_derived_cl2472])).
% 149.27/21.89  thf(zip_derived_cl3222, plain,
% 149.27/21.89      (![X0 : $i]:
% 149.27/21.89         ( (frontsegP @ X0 @ (skaf46 @ X0 @ X0))
% 149.27/21.89          | ~ (ssList @ X0)
% 149.27/21.89          | ~ (ssList @ (skaf46 @ X0 @ X0))
% 149.27/21.89          | ~ (ssList @ X0))),
% 149.27/21.89      inference('sup+', [status(thm)], [zip_derived_cl2255, zip_derived_cl2475])).
% 149.27/21.89  thf(clause50, axiom, (ssList @ ( skaf46 @ U @ V ))).
% 149.27/21.89  thf(zip_derived_cl49, plain,
% 149.27/21.89      (![X0 : $i, X1 : $i]:  (ssList @ (skaf46 @ X0 @ X1))),
% 149.27/21.89      inference('cnf', [status(esa)], [clause50])).
% 149.27/21.89  thf(zip_derived_cl3240, plain,
% 149.27/21.89      (![X0 : $i]:
% 149.27/21.89         ( (frontsegP @ X0 @ (skaf46 @ X0 @ X0))
% 149.27/21.89          | ~ (ssList @ X0)
% 149.27/21.89          | ~ (ssList @ X0))),
% 149.27/21.89      inference('demod', [status(thm)], [zip_derived_cl3222, zip_derived_cl49])).
% 149.27/21.89  thf(zip_derived_cl3241, plain,
% 149.27/21.89      (![X0 : $i]: (~ (ssList @ X0) |  (frontsegP @ X0 @ (skaf46 @ X0 @ X0)))),
% 149.27/21.89      inference('simplify', [status(thm)], [zip_derived_cl3240])).
% 149.27/21.89  thf(clause129, axiom,
% 149.27/21.89    (( ~( frontsegP @ U @ V ) ) | ( ~( frontsegP @ V @ U ) ) | 
% 149.27/21.89     ( ~( ssList @ U ) ) | ( ~( ssList @ V ) ) | ( ( V ) = ( U ) ))).
% 149.27/21.89  thf(zip_derived_cl128, plain,
% 149.27/21.89      (![X0 : $i, X1 : $i]:
% 149.27/21.89         (~ (frontsegP @ X0 @ X1)
% 149.27/21.89          | ~ (frontsegP @ X1 @ X0)
% 149.27/21.89          | ~ (ssList @ X0)
% 149.27/21.89          | ~ (ssList @ X1)
% 149.27/21.89          | ((X1) = (X0)))),
% 149.27/21.89      inference('cnf', [status(esa)], [clause129])).
% 149.27/21.89  thf(zip_derived_cl3288, plain,
% 149.27/21.89      (![X0 : $i]:
% 149.27/21.89         (~ (ssList @ X0)
% 149.27/21.89          | ((skaf46 @ X0 @ X0) = (X0))
% 149.27/21.89          | ~ (ssList @ (skaf46 @ X0 @ X0))
% 149.27/21.89          | ~ (ssList @ X0)
% 149.27/21.89          | ~ (frontsegP @ (skaf46 @ X0 @ X0) @ X0))),
% 149.27/21.89      inference('sup-', [status(thm)], [zip_derived_cl3241, zip_derived_cl128])).
% 149.27/21.89  thf(zip_derived_cl49, plain,
% 149.27/21.89      (![X0 : $i, X1 : $i]:  (ssList @ (skaf46 @ X0 @ X1))),
% 149.27/21.89      inference('cnf', [status(esa)], [clause50])).
% 149.27/21.89  thf(zip_derived_cl3291, plain,
% 149.27/21.89      (![X0 : $i]:
% 149.27/21.89         (~ (ssList @ X0)
% 149.27/21.89          | ((skaf46 @ X0 @ X0) = (X0))
% 149.27/21.89          | ~ (ssList @ X0)
% 149.27/21.89          | ~ (frontsegP @ (skaf46 @ X0 @ X0) @ X0))),
% 149.27/21.89      inference('demod', [status(thm)], [zip_derived_cl3288, zip_derived_cl49])).
% 149.27/21.89  thf(zip_derived_cl3292, plain,
% 149.27/21.89      (![X0 : $i]:
% 149.27/21.89         (~ (frontsegP @ (skaf46 @ X0 @ X0) @ X0)
% 149.27/21.89          | ((skaf46 @ X0 @ X0) = (X0))
% 149.27/21.89          | ~ (ssList @ X0))),
% 149.27/21.89      inference('simplify', [status(thm)], [zip_derived_cl3291])).
% 149.27/21.89  thf(zip_derived_cl3315, plain,
% 149.27/21.89      ((~ (ssList @ (skaf46 @ (tl @ sk3) @ (tl @ sk3)))
% 149.27/21.89        | ~ (ssList @ (tl @ sk3))
% 149.27/21.89        | ((skaf46 @ (tl @ sk3) @ (tl @ sk3)) = (tl @ sk3)))),
% 149.27/21.89      inference('sup-', [status(thm)], [zip_derived_cl980, zip_derived_cl3292])).
% 149.27/21.89  thf(zip_derived_cl49, plain,
% 149.27/21.89      (![X0 : $i, X1 : $i]:  (ssList @ (skaf46 @ X0 @ X1))),
% 149.27/21.89      inference('cnf', [status(esa)], [clause50])).
% 149.27/21.89  thf(zip_derived_cl976, plain, ( (ssList @ (tl @ sk3))),
% 149.27/21.89      inference('demod', [status(thm)], [zip_derived_cl7, zip_derived_cl955])).
% 149.27/21.89  thf(zip_derived_cl3316, plain,
% 149.27/21.89      (((skaf46 @ (tl @ sk3) @ (tl @ sk3)) = (tl @ sk3))),
% 149.27/21.89      inference('demod', [status(thm)],
% 149.27/21.89                [zip_derived_cl3315, zip_derived_cl49, zip_derived_cl976])).
% 149.27/21.89  thf(zip_derived_cl2255, plain,
% 149.27/21.89      (![X0 : $i]: (((app @ (skaf46 @ X0 @ X0) @ X0) = (X0)) | ~ (ssList @ X0))),
% 149.27/21.89      inference('simplify', [status(thm)], [zip_derived_cl2251])).
% 149.27/21.89  thf(zip_derived_cl4819, plain,
% 149.27/21.89      ((((app @ (tl @ sk3) @ (tl @ sk3)) = (tl @ sk3))
% 149.27/21.89        | ~ (ssList @ (tl @ sk3)))),
% 149.27/21.89      inference('sup+', [status(thm)], [zip_derived_cl3316, zip_derived_cl2255])).
% 149.27/21.89  thf(zip_derived_cl976, plain, ( (ssList @ (tl @ sk3))),
% 149.27/21.89      inference('demod', [status(thm)], [zip_derived_cl7, zip_derived_cl955])).
% 149.27/21.89  thf(zip_derived_cl4827, plain,
% 149.27/21.89      (((app @ (tl @ sk3) @ (tl @ sk3)) = (tl @ sk3))),
% 149.27/21.89      inference('demod', [status(thm)], [zip_derived_cl4819, zip_derived_cl976])).
% 149.27/21.89  thf(clause157, axiom,
% 149.27/21.89    (( ~( ssItem @ U ) ) | ( ~( ssList @ V ) ) | ( ~( ssList @ W ) ) | 
% 149.27/21.89     ( ( cons @ U @ ( app @ V @ W ) ) = ( app @ ( cons @ U @ V ) @ W ) ))).
% 149.27/21.89  thf(zip_derived_cl156, plain,
% 149.27/21.89      (![X0 : $i, X1 : $i, X2 : $i]:
% 149.27/21.89         (~ (ssItem @ X0)
% 149.27/21.89          | ~ (ssList @ X1)
% 149.27/21.89          | ~ (ssList @ X2)
% 149.27/21.89          | ((cons @ X0 @ (app @ X1 @ X2)) = (app @ (cons @ X0 @ X1) @ X2)))),
% 149.27/21.89      inference('cnf', [status(esa)], [clause157])).
% 149.27/21.89  thf(clause85, axiom,
% 149.27/21.89    (( ~( ssList @ U ) ) | ( ~( ssList @ V ) ) | ( ssList @ ( app @ V @ U ) ))).
% 149.27/21.89  thf(zip_derived_cl84, plain,
% 149.27/21.89      (![X0 : $i, X1 : $i]:
% 149.27/21.89         (~ (ssList @ X0) | ~ (ssList @ X1) |  (ssList @ (app @ X1 @ X0)))),
% 149.27/21.89      inference('cnf', [status(esa)], [clause85])).
% 149.27/21.89  thf(zip_derived_cl3511, plain,
% 149.27/21.89      (![X0 : $i, X1 : $i, X2 : $i]:
% 149.27/21.89         ( (ssList @ (cons @ X2 @ (app @ X1 @ X0)))
% 149.27/21.89          | ~ (ssList @ X0)
% 149.27/21.89          | ~ (ssList @ X1)
% 149.27/21.89          | ~ (ssItem @ X2)
% 149.27/21.89          | ~ (ssList @ (cons @ X2 @ X1))
% 149.27/21.89          | ~ (ssList @ X0))),
% 149.27/21.89      inference('sup+', [status(thm)], [zip_derived_cl156, zip_derived_cl84])).
% 149.27/21.89  thf(zip_derived_cl3538, plain,
% 149.27/21.89      (![X0 : $i, X1 : $i, X2 : $i]:
% 149.27/21.89         (~ (ssList @ (cons @ X2 @ X1))
% 149.27/21.89          | ~ (ssItem @ X2)
% 149.27/21.89          | ~ (ssList @ X1)
% 149.27/21.89          | ~ (ssList @ X0)
% 149.27/21.89          |  (ssList @ (cons @ X2 @ (app @ X1 @ X0))))),
% 149.27/21.89      inference('simplify', [status(thm)], [zip_derived_cl3511])).
% 149.27/21.89  thf(clause86, axiom,
% 149.27/21.89    (( ~( ssItem @ U ) ) | ( ~( ssList @ V ) ) | ( ssList @ ( cons @ U @ V ) ))).
% 149.27/21.89  thf(zip_derived_cl85, plain,
% 149.27/21.89      (![X0 : $i, X1 : $i]:
% 149.27/21.89         (~ (ssItem @ X0) | ~ (ssList @ X1) |  (ssList @ (cons @ X0 @ X1)))),
% 149.27/21.89      inference('cnf', [status(esa)], [clause86])).
% 149.27/21.89  thf(zip_derived_cl3553, plain,
% 149.27/21.89      (![X0 : $i, X1 : $i, X2 : $i]:
% 149.27/21.89         ( (ssList @ (cons @ X2 @ (app @ X1 @ X0)))
% 149.27/21.89          | ~ (ssList @ X0)
% 149.27/21.89          | ~ (ssList @ X1)
% 149.27/21.89          | ~ (ssItem @ X2))),
% 149.27/21.89      inference('clc', [status(thm)], [zip_derived_cl3538, zip_derived_cl85])).
% 149.27/21.89  thf(zip_derived_cl5025, plain,
% 149.27/21.89      (![X0 : $i]:
% 149.27/21.89         ( (ssList @ (cons @ X0 @ (tl @ sk3)))
% 149.27/21.89          | ~ (ssItem @ X0)
% 149.27/21.89          | ~ (ssList @ (tl @ sk3))
% 149.27/21.89          | ~ (ssList @ (tl @ sk3)))),
% 149.27/21.89      inference('sup+', [status(thm)], [zip_derived_cl4827, zip_derived_cl3553])).
% 149.27/21.89  thf(zip_derived_cl976, plain, ( (ssList @ (tl @ sk3))),
% 149.27/21.89      inference('demod', [status(thm)], [zip_derived_cl7, zip_derived_cl955])).
% 149.27/21.89  thf(zip_derived_cl976, plain, ( (ssList @ (tl @ sk3))),
% 149.27/21.89      inference('demod', [status(thm)], [zip_derived_cl7, zip_derived_cl955])).
% 149.27/21.89  thf(zip_derived_cl5048, plain,
% 149.27/21.89      (![X0 : $i]: ( (ssList @ (cons @ X0 @ (tl @ sk3))) | ~ (ssItem @ X0))),
% 149.27/21.89      inference('demod', [status(thm)],
% 149.27/21.89                [zip_derived_cl5025, zip_derived_cl976, zip_derived_cl976])).
% 149.27/21.89  thf(zip_derived_cl84, plain,
% 149.27/21.89      (![X0 : $i, X1 : $i]:
% 149.27/21.89         (~ (ssList @ X0) | ~ (ssList @ X1) |  (ssList @ (app @ X1 @ X0)))),
% 149.27/21.89      inference('cnf', [status(esa)], [clause85])).
% 149.27/21.89  thf(clause72, axiom,
% 149.27/21.89    (( ~( ssList @ U ) ) | ( duplicatefreeP @ U ) | ( ssItem @ V ))).
% 149.27/21.89  thf(zip_derived_cl71, plain,
% 149.27/21.89      (![X0 : $i, X1 : $i]:
% 149.27/21.89         (~ (ssList @ X0) |  (duplicatefreeP @ X0) |  (ssItem @ X1))),
% 149.27/21.89      inference('cnf', [status(esa)], [clause72])).
% 149.27/21.89  thf(zip_derived_cl406, plain,
% 149.27/21.89      (![X0 : $i, X1 : $i, X2 : $i]:
% 149.27/21.89         (~ (ssList @ X1)
% 149.27/21.89          | ~ (ssList @ X0)
% 149.27/21.89          |  (ssItem @ X2)
% 149.27/21.89          |  (duplicatefreeP @ (app @ X1 @ X0)))),
% 149.27/21.89      inference('sup-', [status(thm)], [zip_derived_cl84, zip_derived_cl71])).
% 149.27/21.89  thf(zip_derived_cl84, plain,
% 149.27/21.89      (![X0 : $i, X1 : $i]:
% 149.27/21.89         (~ (ssList @ X0) | ~ (ssList @ X1) |  (ssList @ (app @ X1 @ X0)))),
% 149.27/21.89      inference('cnf', [status(esa)], [clause85])).
% 149.27/21.89  thf(zip_derived_cl2255, plain,
% 149.27/21.89      (![X0 : $i]: (((app @ (skaf46 @ X0 @ X0) @ X0) = (X0)) | ~ (ssList @ X0))),
% 149.27/21.89      inference('simplify', [status(thm)], [zip_derived_cl2251])).
% 149.27/21.89  thf(clause179, axiom,
% 149.27/21.89    (( ( app @ ( app @ U @ ( cons @ V @ W ) ) @ ( cons @ V @ X ) ) != ( Y ) ) | 
% 149.27/21.89     ( ~( ssList @ X ) ) | ( ~( ssList @ W ) ) | ( ~( ssList @ U ) ) | 
% 149.27/21.89     ( ~( ssItem @ V ) ) | ( ~( duplicatefreeP @ Y ) ) | ( ~( ssList @ Y ) ))).
% 149.27/21.89  thf(zip_derived_cl178, plain,
% 149.27/21.89      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i, X4 : $i]:
% 149.27/21.89         (((app @ (app @ X1 @ (cons @ X2 @ X3)) @ (cons @ X2 @ X4)) != (X0))
% 149.27/21.89          | ~ (ssList @ X4)
% 149.27/21.89          | ~ (ssList @ X3)
% 149.27/21.89          | ~ (ssList @ X1)
% 149.27/21.89          | ~ (ssItem @ X2)
% 149.27/21.89          | ~ (duplicatefreeP @ X0)
% 149.27/21.89          | ~ (ssList @ X0))),
% 149.27/21.89      inference('cnf', [status(esa)], [clause179])).
% 149.27/21.89  thf(zip_derived_cl4712, plain,
% 149.27/21.89      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i]:
% 149.27/21.89         (((app @ (cons @ X1 @ X0) @ (cons @ X1 @ X3)) != (X2))
% 149.27/21.89          | ~ (ssList @ (cons @ X1 @ X0))
% 149.27/21.89          | ~ (ssList @ X2)
% 149.27/21.89          | ~ (duplicatefreeP @ X2)
% 149.27/21.89          | ~ (ssItem @ X1)
% 149.27/21.89          | ~ (ssList @ (skaf46 @ (cons @ X1 @ X0) @ (cons @ X1 @ X0)))
% 149.27/21.89          | ~ (ssList @ X0)
% 149.27/21.89          | ~ (ssList @ X3))),
% 149.27/21.89      inference('sup-', [status(thm)], [zip_derived_cl2255, zip_derived_cl178])).
% 149.27/21.89  thf(zip_derived_cl49, plain,
% 149.27/21.89      (![X0 : $i, X1 : $i]:  (ssList @ (skaf46 @ X0 @ X1))),
% 149.27/21.89      inference('cnf', [status(esa)], [clause50])).
% 149.27/21.89  thf(zip_derived_cl4733, plain,
% 149.27/21.89      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i]:
% 149.27/21.89         (((app @ (cons @ X1 @ X0) @ (cons @ X1 @ X3)) != (X2))
% 149.27/21.89          | ~ (ssList @ (cons @ X1 @ X0))
% 149.27/21.89          | ~ (ssList @ X2)
% 149.27/21.89          | ~ (duplicatefreeP @ X2)
% 149.27/21.89          | ~ (ssItem @ X1)
% 149.27/21.89          | ~ (ssList @ X0)
% 149.27/21.89          | ~ (ssList @ X3))),
% 149.27/21.89      inference('demod', [status(thm)], [zip_derived_cl4712, zip_derived_cl49])).
% 149.27/21.89  thf(zip_derived_cl85, plain,
% 149.27/21.89      (![X0 : $i, X1 : $i]:
% 149.27/21.89         (~ (ssItem @ X0) | ~ (ssList @ X1) |  (ssList @ (cons @ X0 @ X1)))),
% 149.27/21.89      inference('cnf', [status(esa)], [clause86])).
% 149.27/21.89  thf(zip_derived_cl7859, plain,
% 149.27/21.89      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i]:
% 149.27/21.89         (~ (ssList @ X3)
% 149.27/21.89          | ~ (ssList @ X0)
% 149.27/21.89          | ~ (ssItem @ X1)
% 149.27/21.89          | ~ (duplicatefreeP @ X2)
% 149.27/21.89          | ~ (ssList @ X2)
% 149.27/21.89          | ((app @ (cons @ X1 @ X0) @ (cons @ X1 @ X3)) != (X2)))),
% 149.27/21.89      inference('clc', [status(thm)], [zip_derived_cl4733, zip_derived_cl85])).
% 149.27/21.89  thf(zip_derived_cl7874, plain,
% 149.27/21.89      (![X0 : $i, X1 : $i, X2 : $i]:
% 149.27/21.89         (~ (ssList @ (app @ (cons @ X1 @ X2) @ (cons @ X1 @ X0)))
% 149.27/21.89          | ~ (duplicatefreeP @ (app @ (cons @ X1 @ X2) @ (cons @ X1 @ X0)))
% 149.27/21.89          | ~ (ssItem @ X1)
% 149.27/21.89          | ~ (ssList @ X2)
% 149.27/21.89          | ~ (ssList @ X0))),
% 149.27/21.89      inference('eq_res', [status(thm)], [zip_derived_cl7859])).
% 149.27/21.89  thf(zip_derived_cl7888, plain,
% 149.27/21.89      (![X0 : $i, X1 : $i, X2 : $i]:
% 149.27/21.89         (~ (ssList @ (cons @ X1 @ X2))
% 149.27/21.89          | ~ (ssList @ (cons @ X1 @ X0))
% 149.27/21.89          | ~ (ssList @ X0)
% 149.27/21.89          | ~ (ssList @ X2)
% 149.27/21.89          | ~ (ssItem @ X1)
% 149.27/21.89          | ~ (duplicatefreeP @ (app @ (cons @ X1 @ X2) @ (cons @ X1 @ X0))))),
% 149.27/21.89      inference('sup-', [status(thm)], [zip_derived_cl84, zip_derived_cl7874])).
% 149.27/21.89  thf(zip_derived_cl85, plain,
% 149.27/21.89      (![X0 : $i, X1 : $i]:
% 149.27/21.89         (~ (ssItem @ X0) | ~ (ssList @ X1) |  (ssList @ (cons @ X0 @ X1)))),
% 149.27/21.89      inference('cnf', [status(esa)], [clause86])).
% 149.27/21.89  thf(zip_derived_cl7918, plain,
% 149.27/21.89      (![X0 : $i, X1 : $i, X2 : $i]:
% 149.27/21.89         (~ (duplicatefreeP @ (app @ (cons @ X1 @ X2) @ (cons @ X1 @ X0)))
% 149.27/21.89          | ~ (ssItem @ X1)
% 149.27/21.89          | ~ (ssList @ X2)
% 149.27/21.89          | ~ (ssList @ X0)
% 149.27/21.89          | ~ (ssList @ (cons @ X1 @ X0)))),
% 149.27/21.89      inference('clc', [status(thm)], [zip_derived_cl7888, zip_derived_cl85])).
% 149.27/21.89  thf(zip_derived_cl85, plain,
% 149.27/21.89      (![X0 : $i, X1 : $i]:
% 149.27/21.89         (~ (ssItem @ X0) | ~ (ssList @ X1) |  (ssList @ (cons @ X0 @ X1)))),
% 149.27/21.89      inference('cnf', [status(esa)], [clause86])).
% 149.27/21.89  thf(zip_derived_cl7919, plain,
% 149.27/21.89      (![X0 : $i, X1 : $i, X2 : $i]:
% 149.27/21.89         (~ (ssList @ X0)
% 149.27/21.89          | ~ (ssList @ X2)
% 149.27/21.89          | ~ (ssItem @ X1)
% 149.27/21.89          | ~ (duplicatefreeP @ (app @ (cons @ X1 @ X2) @ (cons @ X1 @ X0))))),
% 149.27/21.89      inference('clc', [status(thm)], [zip_derived_cl7918, zip_derived_cl85])).
% 149.27/21.89  thf(zip_derived_cl7920, plain,
% 149.27/21.89      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i]:
% 149.27/21.89         ( (ssItem @ X3)
% 149.27/21.89          | ~ (ssList @ (cons @ X1 @ X0))
% 149.27/21.89          | ~ (ssList @ (cons @ X1 @ X2))
% 149.27/21.89          | ~ (ssItem @ X1)
% 149.27/21.89          | ~ (ssList @ X2)
% 149.27/21.89          | ~ (ssList @ X0))),
% 149.27/21.89      inference('sup-', [status(thm)], [zip_derived_cl406, zip_derived_cl7919])).
% 149.27/21.89  thf(zip_derived_cl85, plain,
% 149.27/21.89      (![X0 : $i, X1 : $i]:
% 149.27/21.89         (~ (ssItem @ X0) | ~ (ssList @ X1) |  (ssList @ (cons @ X0 @ X1)))),
% 149.27/21.89      inference('cnf', [status(esa)], [clause86])).
% 149.27/21.89  thf(zip_derived_cl7950, plain,
% 149.27/21.89      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i]:
% 149.27/21.89         (~ (ssList @ X0)
% 149.27/21.89          | ~ (ssList @ X2)
% 149.27/21.89          | ~ (ssItem @ X1)
% 149.27/21.89          | ~ (ssList @ (cons @ X1 @ X2))
% 149.27/21.89          |  (ssItem @ X3))),
% 149.27/21.89      inference('clc', [status(thm)], [zip_derived_cl7920, zip_derived_cl85])).
% 149.27/21.89  thf(zip_derived_cl85, plain,
% 149.27/21.89      (![X0 : $i, X1 : $i]:
% 149.27/21.89         (~ (ssItem @ X0) | ~ (ssList @ X1) |  (ssList @ (cons @ X0 @ X1)))),
% 149.27/21.89      inference('cnf', [status(esa)], [clause86])).
% 149.27/21.89  thf(zip_derived_cl7951, plain,
% 149.27/21.89      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i]:
% 149.27/21.89         ( (ssItem @ X3) | ~ (ssItem @ X1) | ~ (ssList @ X2) | ~ (ssList @ X0))),
% 149.27/21.89      inference('clc', [status(thm)], [zip_derived_cl7950, zip_derived_cl85])).
% 149.27/21.89  thf(zip_derived_cl7952, plain,
% 149.27/21.89      (![X0 : $i, X1 : $i, X2 : $i]:
% 149.27/21.89         ( (ssItem @ X0) | ~ (ssItem @ X1) | ~ (ssList @ X2))),
% 149.27/21.89      inference('condensation', [status(thm)], [zip_derived_cl7951])).
% 149.27/21.89  thf(clause9, axiom, (ssItem @ skac3)).
% 149.27/21.89  thf(zip_derived_cl8, plain, ( (ssItem @ skac3)),
% 149.27/21.89      inference('cnf', [status(esa)], [clause9])).
% 149.27/21.89  thf(zip_derived_cl7994, plain,
% 149.27/21.89      (![X0 : $i, X1 : $i]: (~ (ssList @ X0) |  (ssItem @ X1))),
% 149.27/21.89      inference('sup+', [status(thm)], [zip_derived_cl7952, zip_derived_cl8])).
% 149.27/21.89  thf(clause13, axiom, (ssList @ ( skaf82 @ U ))).
% 149.27/21.89  thf(zip_derived_cl12, plain, (![X0 : $i]:  (ssList @ (skaf82 @ X0))),
% 149.27/21.89      inference('cnf', [status(esa)], [clause13])).
% 149.27/21.89  thf(zip_derived_cl8154, plain, (![X1 : $i]:  (ssItem @ X1)),
% 149.27/21.89      inference('sup+', [status(thm)], [zip_derived_cl7994, zip_derived_cl12])).
% 149.27/21.89  thf(zip_derived_cl8370, plain,
% 149.27/21.89      (![X0 : $i]:  (ssList @ (cons @ X0 @ (tl @ sk3)))),
% 149.27/21.89      inference('demod', [status(thm)],
% 149.27/21.89                [zip_derived_cl5048, zip_derived_cl8154])).
% 149.27/21.89  thf(zip_derived_cl8154, plain, (![X1 : $i]:  (ssItem @ X1)),
% 149.27/21.89      inference('sup+', [status(thm)], [zip_derived_cl7994, zip_derived_cl12])).
% 149.27/21.89  thf(zip_derived_cl164046, plain,
% 149.27/21.89      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i]:
% 149.27/21.89         (~ (ssList @ X2)
% 149.27/21.89          |  (segmentP @ X2 @ (cons @ X1 @ (tl @ sk3)))
% 149.27/21.89          | ~ (ssList @ X3)
% 149.27/21.89          | ~ (ssList @ X0)
% 149.27/21.89          | ((app @ X3 @ (cons @ X1 @ X0)) != (X2)))),
% 149.27/21.89      inference('demod', [status(thm)],
% 149.27/21.89                [zip_derived_cl6027, zip_derived_cl8370, zip_derived_cl8154])).
% 149.27/21.89  thf(zip_derived_cl164063, plain,
% 149.27/21.89      (![X0 : $i]:
% 149.27/21.89         (((sk2) != (X0))
% 149.27/21.89          | ~ (ssList @ (skaf43 @ (hd @ sk3) @ sk2))
% 149.27/21.89          | ~ (ssList @ (skaf42 @ sk2 @ (hd @ sk3)))
% 149.27/21.89          |  (segmentP @ X0 @ (cons @ (hd @ sk3) @ (tl @ sk3)))
% 149.27/21.89          | ~ (ssList @ X0))),
% 149.27/21.89      inference('sup-', [status(thm)],
% 149.27/21.89                [zip_derived_cl4159, zip_derived_cl164046])).
% 149.27/21.89  thf(clause52, axiom, (ssList @ ( skaf43 @ U @ V ))).
% 149.27/21.89  thf(zip_derived_cl51, plain,
% 149.27/21.89      (![X0 : $i, X1 : $i]:  (ssList @ (skaf43 @ X0 @ X1))),
% 149.27/21.89      inference('cnf', [status(esa)], [clause52])).
% 149.27/21.89  thf(clause53, axiom, (ssList @ ( skaf42 @ U @ V ))).
% 149.27/21.89  thf(zip_derived_cl52, plain,
% 149.27/21.89      (![X0 : $i, X1 : $i]:  (ssList @ (skaf42 @ X0 @ X1))),
% 149.27/21.89      inference('cnf', [status(esa)], [clause53])).
% 149.27/21.89  thf(zip_derived_cl930, plain, (((cons @ sk5 @ nil) = (sk3))),
% 149.27/21.89      inference('simplify_reflect-', [status(thm)],
% 149.27/21.89                [zip_derived_cl929, zip_derived_cl201])).
% 149.27/21.89  thf(zip_derived_cl955, plain, (((tl @ sk3) = (nil))),
% 149.27/21.89      inference('demod', [status(thm)],
% 149.27/21.89                [zip_derived_cl940, zip_derived_cl7, zip_derived_cl926])).
% 149.27/21.89  thf(zip_derived_cl1016, plain, (((cons @ sk5 @ (tl @ sk3)) = (sk3))),
% 149.27/21.89      inference('demod', [status(thm)], [zip_derived_cl930, zip_derived_cl955])).
% 149.27/21.89  thf(zip_derived_cl956, plain, (((hd @ sk3) = (sk5))),
% 149.27/21.89      inference('demod', [status(thm)],
% 149.27/21.89                [zip_derived_cl941, zip_derived_cl7, zip_derived_cl926])).
% 149.27/21.89  thf(zip_derived_cl1671, plain, (((cons @ (hd @ sk3) @ (tl @ sk3)) = (sk3))),
% 149.27/21.89      inference('demod', [status(thm)], [zip_derived_cl1016, zip_derived_cl956])).
% 149.27/21.89  thf(zip_derived_cl164116, plain,
% 149.27/21.89      (![X0 : $i]: (((sk2) != (X0)) |  (segmentP @ X0 @ sk3) | ~ (ssList @ X0))),
% 149.27/21.89      inference('demod', [status(thm)],
% 149.27/21.89                [zip_derived_cl164063, zip_derived_cl51, zip_derived_cl52, 
% 149.27/21.89                 zip_derived_cl1671])).
% 149.27/21.89  thf(zip_derived_cl164146, plain,
% 149.27/21.89      ((~ (ssList @ sk2) |  (segmentP @ sk2 @ sk3))),
% 149.27/21.89      inference('eq_res', [status(thm)], [zip_derived_cl164116])).
% 149.27/21.89  thf(zip_derived_cl186, plain, ( (ssList @ sk2)),
% 149.27/21.89      inference('cnf', [status(esa)], [zf_stmt_4])).
% 149.27/21.89  thf(zip_derived_cl164147, plain, ( (segmentP @ sk2 @ sk3)),
% 149.27/21.89      inference('demod', [status(thm)],
% 149.27/21.89                [zip_derived_cl164146, zip_derived_cl186])).
% 149.27/21.89  thf(zip_derived_cl164154, plain, ($false),
% 149.27/21.89      inference('demod', [status(thm)],
% 149.27/21.89                [zip_derived_cl1935, zip_derived_cl164147])).
% 149.27/21.89  
% 149.27/21.89  % SZS output end Refutation
% 149.27/21.89  
% 149.27/21.89  
% 149.27/21.89  % Terminating...
% 149.27/22.02  % Runner terminated.
% 149.27/22.02  % Zipperpin 1.5 exiting
%------------------------------------------------------------------------------