TSTP Solution File: GRP336-1 by Zipperpin---2.1.9999

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : Zipperpin---2.1.9999
% Problem  : GRP336-1 : TPTP v8.1.2. Released v2.5.0.
% Transfm  : NO INFORMATION
% Format   : NO INFORMATION
% Command  : python3 /export/starexec/sandbox/solver/bin/portfolio.lams.parallel.py %s %d /export/starexec/sandbox/tmp/tmp.tRlnkHzqIa true

% Computer : n016.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 01:51:15 EDT 2023

% Result   : Unsatisfiable 0.55s 0.94s
% Output   : Refutation 0.55s
% Verified : 
% SZS Type : -

% Comments : 
%------------------------------------------------------------------------------
%----WARNING: Could not form TPTP format derivation
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.12  % Problem  : GRP336-1 : TPTP v8.1.2. Released v2.5.0.
% 0.12/0.13  % Command  : python3 /export/starexec/sandbox/solver/bin/portfolio.lams.parallel.py %s %d /export/starexec/sandbox/tmp/tmp.tRlnkHzqIa true
% 0.12/0.34  % Computer : n016.cluster.edu
% 0.12/0.34  % Model    : x86_64 x86_64
% 0.12/0.34  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.12/0.34  % Memory   : 8042.1875MB
% 0.12/0.34  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.12/0.34  % CPULimit : 300
% 0.12/0.34  % WCLimit  : 300
% 0.12/0.34  % DateTime : Mon Aug 28 21:35:15 EDT 2023
% 0.12/0.34  % CPUTime  : 
% 0.12/0.34  % Running portfolio for 300 s
% 0.12/0.34  % File         : /export/starexec/sandbox/benchmark/theBenchmark.p
% 0.20/0.34  % Number of cores: 8
% 0.20/0.35  % Python version: Python 3.6.8
% 0.20/0.35  % Running in FO mode
% 0.52/0.57  % Total configuration time : 435
% 0.52/0.57  % Estimated wc time : 1092
% 0.52/0.57  % Estimated cpu time (7 cpus) : 156.0
% 0.53/0.64  % /export/starexec/sandbox/solver/bin/fo/fo6_bce.sh running for 75s
% 0.53/0.66  % /export/starexec/sandbox/solver/bin/fo/fo3_bce.sh running for 75s
% 0.53/0.67  % /export/starexec/sandbox/solver/bin/fo/fo1_av.sh running for 75s
% 0.53/0.68  % /export/starexec/sandbox/solver/bin/fo/fo7.sh running for 63s
% 0.53/0.68  % /export/starexec/sandbox/solver/bin/fo/fo13.sh running for 50s
% 0.53/0.69  % /export/starexec/sandbox/solver/bin/fo/fo5.sh running for 50s
% 0.53/0.70  % /export/starexec/sandbox/solver/bin/fo/fo4.sh running for 50s
% 0.55/0.94  % Solved by fo/fo7.sh.
% 0.55/0.94  % done 648 iterations in 0.230s
% 0.55/0.94  % SZS status Theorem for '/export/starexec/sandbox/benchmark/theBenchmark.p'
% 0.55/0.94  % SZS output start Refutation
% 0.55/0.94  thf(sk_c8_type, type, sk_c8: $i).
% 0.55/0.94  thf(sk_c2_type, type, sk_c2: $i).
% 0.55/0.94  thf(sk_c5_type, type, sk_c5: $i).
% 0.55/0.94  thf(identity_type, type, identity: $i).
% 0.55/0.94  thf(multiply_type, type, multiply: $i > $i > $i).
% 0.55/0.94  thf(sk_c10_type, type, sk_c10: $i).
% 0.55/0.94  thf(inverse_type, type, inverse: $i > $i).
% 0.55/0.94  thf(sk_c4_type, type, sk_c4: $i).
% 0.55/0.94  thf(sk_c3_type, type, sk_c3: $i).
% 0.55/0.94  thf(sk_c1_type, type, sk_c1: $i).
% 0.55/0.94  thf(sk_c9_type, type, sk_c9: $i).
% 0.55/0.94  thf(left_inverse, axiom, (( multiply @ ( inverse @ X ) @ X ) = ( identity ))).
% 0.55/0.94  thf(zip_derived_cl1, plain,
% 0.55/0.94      (![X0 : $i]: ((multiply @ (inverse @ X0) @ X0) = (identity))),
% 0.55/0.94      inference('cnf', [status(esa)], [left_inverse])).
% 0.55/0.94  thf(prove_this_13, conjecture,
% 0.55/0.94    (~( ( ( multiply @ sk_c5 @ sk_c9 ) = ( sk_c10 ) ) | 
% 0.55/0.94        ( ( inverse @ sk_c1 ) = ( sk_c10 ) ) ))).
% 0.55/0.94  thf(zf_stmt_0, negated_conjecture,
% 0.55/0.94    (( ( multiply @ sk_c5 @ sk_c9 ) = ( sk_c10 ) ) | 
% 0.55/0.94     ( ( inverse @ sk_c1 ) = ( sk_c10 ) )),
% 0.55/0.94    inference('cnf.neg', [status(esa)], [prove_this_13])).
% 0.55/0.94  thf(zip_derived_cl15, plain,
% 0.55/0.94      ((((multiply @ sk_c5 @ sk_c9) = (sk_c10))
% 0.55/0.94        | ((inverse @ sk_c1) = (sk_c10)))),
% 0.55/0.94      inference('cnf', [status(esa)], [zf_stmt_0])).
% 0.55/0.94  thf(zip_derived_cl1, plain,
% 0.55/0.94      (![X0 : $i]: ((multiply @ (inverse @ X0) @ X0) = (identity))),
% 0.55/0.94      inference('cnf', [status(esa)], [left_inverse])).
% 0.55/0.94  thf(zip_derived_cl1, plain,
% 0.55/0.94      (![X0 : $i]: ((multiply @ (inverse @ X0) @ X0) = (identity))),
% 0.55/0.94      inference('cnf', [status(esa)], [left_inverse])).
% 0.55/0.94  thf(associativity, axiom,
% 0.55/0.94    (( multiply @ ( multiply @ X @ Y ) @ Z ) =
% 0.55/0.94     ( multiply @ X @ ( multiply @ Y @ Z ) ))).
% 0.55/0.94  thf(zip_derived_cl2, plain,
% 0.55/0.94      (![X0 : $i, X1 : $i, X2 : $i]:
% 0.55/0.94         ((multiply @ (multiply @ X0 @ X1) @ X2)
% 0.55/0.94           = (multiply @ X0 @ (multiply @ X1 @ X2)))),
% 0.55/0.94      inference('cnf', [status(esa)], [associativity])).
% 0.55/0.94  thf(zip_derived_cl151, plain,
% 0.55/0.94      (![X0 : $i, X1 : $i]:
% 0.55/0.94         ((multiply @ identity @ X0)
% 0.55/0.94           = (multiply @ (inverse @ X1) @ (multiply @ X1 @ X0)))),
% 0.55/0.94      inference('sup+', [status(thm)], [zip_derived_cl1, zip_derived_cl2])).
% 0.55/0.94  thf(left_identity, axiom, (( multiply @ identity @ X ) = ( X ))).
% 0.55/0.94  thf(zip_derived_cl0, plain,
% 0.55/0.94      (![X0 : $i]: ((multiply @ identity @ X0) = (X0))),
% 0.55/0.94      inference('cnf', [status(esa)], [left_identity])).
% 0.55/0.94  thf(zip_derived_cl184, plain,
% 0.55/0.94      (![X0 : $i, X1 : $i]:
% 0.55/0.94         ((X0) = (multiply @ (inverse @ X1) @ (multiply @ X1 @ X0)))),
% 0.55/0.94      inference('demod', [status(thm)], [zip_derived_cl151, zip_derived_cl0])).
% 0.55/0.94  thf(zip_derived_cl197, plain,
% 0.55/0.94      (![X0 : $i]: ((X0) = (multiply @ (inverse @ (inverse @ X0)) @ identity))),
% 0.55/0.94      inference('sup+', [status(thm)], [zip_derived_cl1, zip_derived_cl184])).
% 0.55/0.94  thf(zip_derived_cl184, plain,
% 0.55/0.94      (![X0 : $i, X1 : $i]:
% 0.55/0.94         ((X0) = (multiply @ (inverse @ X1) @ (multiply @ X1 @ X0)))),
% 0.55/0.94      inference('demod', [status(thm)], [zip_derived_cl151, zip_derived_cl0])).
% 0.55/0.94  thf(zip_derived_cl184, plain,
% 0.55/0.94      (![X0 : $i, X1 : $i]:
% 0.55/0.94         ((X0) = (multiply @ (inverse @ X1) @ (multiply @ X1 @ X0)))),
% 0.55/0.94      inference('demod', [status(thm)], [zip_derived_cl151, zip_derived_cl0])).
% 0.55/0.94  thf(zip_derived_cl194, plain,
% 0.55/0.94      (![X0 : $i, X1 : $i]:
% 0.55/0.94         ((multiply @ X1 @ X0) = (multiply @ (inverse @ (inverse @ X1)) @ X0))),
% 0.55/0.94      inference('sup+', [status(thm)], [zip_derived_cl184, zip_derived_cl184])).
% 0.55/0.94  thf(zip_derived_cl762, plain,
% 0.55/0.94      (![X0 : $i]: ((multiply @ X0 @ identity) = (X0))),
% 0.55/0.94      inference('sup+', [status(thm)], [zip_derived_cl197, zip_derived_cl194])).
% 0.55/0.94  thf(zip_derived_cl197, plain,
% 0.55/0.94      (![X0 : $i]: ((X0) = (multiply @ (inverse @ (inverse @ X0)) @ identity))),
% 0.55/0.94      inference('sup+', [status(thm)], [zip_derived_cl1, zip_derived_cl184])).
% 0.55/0.94  thf(zip_derived_cl789, plain,
% 0.55/0.94      (![X0 : $i]: ((X0) = (inverse @ (inverse @ X0)))),
% 0.55/0.94      inference('sup+', [status(thm)], [zip_derived_cl762, zip_derived_cl197])).
% 0.55/0.94  thf(zip_derived_cl805, plain,
% 0.55/0.94      ((((sk_c1) = (inverse @ sk_c10))
% 0.55/0.94        | ((multiply @ sk_c5 @ sk_c9) = (sk_c10)))),
% 0.55/0.94      inference('sup+', [status(thm)], [zip_derived_cl15, zip_derived_cl789])).
% 0.55/0.94  thf(prove_this_34, conjecture,
% 0.55/0.94    (~( ( ( inverse @ sk_c4 ) = ( sk_c10 ) ) | 
% 0.55/0.94        ( ( inverse @ sk_c2 ) = ( sk_c3 ) ) ))).
% 0.55/0.94  thf(zf_stmt_1, negated_conjecture,
% 0.55/0.94    (( ( inverse @ sk_c4 ) = ( sk_c10 ) ) | ( ( inverse @ sk_c2 ) = ( sk_c3 ) )),
% 0.55/0.94    inference('cnf.neg', [status(esa)], [prove_this_34])).
% 0.55/0.94  thf(zip_derived_cl36, plain,
% 0.55/0.94      ((((inverse @ sk_c4) = (sk_c10)) | ((inverse @ sk_c2) = (sk_c3)))),
% 0.55/0.94      inference('cnf', [status(esa)], [zf_stmt_1])).
% 0.55/0.94  thf(prove_this_26, conjecture,
% 0.55/0.94    (~( ( ( inverse @ sk_c4 ) = ( sk_c10 ) ) | 
% 0.55/0.94        ( ( multiply @ sk_c2 @ sk_c3 ) = ( sk_c9 ) ) ))).
% 0.55/0.94  thf(zf_stmt_2, negated_conjecture,
% 0.55/0.94    (( ( inverse @ sk_c4 ) = ( sk_c10 ) ) | 
% 0.55/0.94     ( ( multiply @ sk_c2 @ sk_c3 ) = ( sk_c9 ) )),
% 0.55/0.94    inference('cnf.neg', [status(esa)], [prove_this_26])).
% 0.55/0.94  thf(zip_derived_cl28, plain,
% 0.55/0.94      ((((inverse @ sk_c4) = (sk_c10)) | ((multiply @ sk_c2 @ sk_c3) = (sk_c9)))),
% 0.55/0.94      inference('cnf', [status(esa)], [zf_stmt_2])).
% 0.55/0.94  thf(zip_derived_cl64, plain,
% 0.55/0.94      ((((multiply @ sk_c2 @ (inverse @ sk_c2)) = (sk_c9))
% 0.55/0.94        | ((inverse @ sk_c4) = (sk_c10))
% 0.55/0.94        | ((inverse @ sk_c4) = (sk_c10)))),
% 0.55/0.94      inference('sup+', [status(thm)], [zip_derived_cl36, zip_derived_cl28])).
% 0.55/0.94  thf(zip_derived_cl69, plain,
% 0.55/0.94      ((((inverse @ sk_c4) = (sk_c10))
% 0.55/0.94        | ((multiply @ sk_c2 @ (inverse @ sk_c2)) = (sk_c9)))),
% 0.55/0.94      inference('simplify', [status(thm)], [zip_derived_cl64])).
% 0.55/0.94  thf(zip_derived_cl789, plain,
% 0.55/0.94      (![X0 : $i]: ((X0) = (inverse @ (inverse @ X0)))),
% 0.55/0.94      inference('sup+', [status(thm)], [zip_derived_cl762, zip_derived_cl197])).
% 0.55/0.94  thf(zip_derived_cl1, plain,
% 0.55/0.94      (![X0 : $i]: ((multiply @ (inverse @ X0) @ X0) = (identity))),
% 0.55/0.94      inference('cnf', [status(esa)], [left_inverse])).
% 0.55/0.94  thf(zip_derived_cl794, plain,
% 0.55/0.94      (![X0 : $i]: ((multiply @ X0 @ (inverse @ X0)) = (identity))),
% 0.55/0.94      inference('sup+', [status(thm)], [zip_derived_cl789, zip_derived_cl1])).
% 0.55/0.94  thf(zip_derived_cl1376, plain,
% 0.55/0.94      ((((inverse @ sk_c4) = (sk_c10)) | ((identity) = (sk_c9)))),
% 0.55/0.94      inference('demod', [status(thm)], [zip_derived_cl69, zip_derived_cl794])).
% 0.55/0.94  thf(zip_derived_cl789, plain,
% 0.55/0.94      (![X0 : $i]: ((X0) = (inverse @ (inverse @ X0)))),
% 0.55/0.94      inference('sup+', [status(thm)], [zip_derived_cl762, zip_derived_cl197])).
% 0.55/0.94  thf(zip_derived_cl1378, plain,
% 0.55/0.94      ((((sk_c4) = (inverse @ sk_c10)) | ((identity) = (sk_c9)))),
% 0.55/0.94      inference('sup+', [status(thm)], [zip_derived_cl1376, zip_derived_cl789])).
% 0.55/0.94  thf(prove_this_33, conjecture,
% 0.55/0.94    (~( ( ( multiply @ sk_c4 @ sk_c10 ) = ( sk_c9 ) ) | 
% 0.55/0.94        ( ( inverse @ sk_c2 ) = ( sk_c3 ) ) ))).
% 0.55/0.94  thf(zf_stmt_3, negated_conjecture,
% 0.55/0.94    (( ( multiply @ sk_c4 @ sk_c10 ) = ( sk_c9 ) ) | 
% 0.55/0.94     ( ( inverse @ sk_c2 ) = ( sk_c3 ) )),
% 0.55/0.94    inference('cnf.neg', [status(esa)], [prove_this_33])).
% 0.55/0.94  thf(zip_derived_cl35, plain,
% 0.55/0.94      ((((multiply @ sk_c4 @ sk_c10) = (sk_c9)) | ((inverse @ sk_c2) = (sk_c3)))),
% 0.55/0.94      inference('cnf', [status(esa)], [zf_stmt_3])).
% 0.55/0.94  thf(prove_this_25, conjecture,
% 0.55/0.94    (~( ( ( multiply @ sk_c4 @ sk_c10 ) = ( sk_c9 ) ) | 
% 0.55/0.94        ( ( multiply @ sk_c2 @ sk_c3 ) = ( sk_c9 ) ) ))).
% 0.55/0.94  thf(zf_stmt_4, negated_conjecture,
% 0.55/0.94    (( ( multiply @ sk_c4 @ sk_c10 ) = ( sk_c9 ) ) | 
% 0.55/0.94     ( ( multiply @ sk_c2 @ sk_c3 ) = ( sk_c9 ) )),
% 0.55/0.94    inference('cnf.neg', [status(esa)], [prove_this_25])).
% 0.55/0.94  thf(zip_derived_cl27, plain,
% 0.55/0.94      ((((multiply @ sk_c4 @ sk_c10) = (sk_c9))
% 0.55/0.94        | ((multiply @ sk_c2 @ sk_c3) = (sk_c9)))),
% 0.55/0.94      inference('cnf', [status(esa)], [zf_stmt_4])).
% 0.55/0.94  thf(zip_derived_cl121, plain,
% 0.55/0.94      ((((multiply @ sk_c2 @ (inverse @ sk_c2)) = (sk_c9))
% 0.55/0.94        | ((multiply @ sk_c4 @ sk_c10) = (sk_c9))
% 0.55/0.94        | ((multiply @ sk_c4 @ sk_c10) = (sk_c9)))),
% 0.55/0.94      inference('sup+', [status(thm)], [zip_derived_cl35, zip_derived_cl27])).
% 0.55/0.94  thf(zip_derived_cl129, plain,
% 0.55/0.94      ((((multiply @ sk_c4 @ sk_c10) = (sk_c9))
% 0.55/0.94        | ((multiply @ sk_c2 @ (inverse @ sk_c2)) = (sk_c9)))),
% 0.55/0.94      inference('simplify', [status(thm)], [zip_derived_cl121])).
% 0.55/0.94  thf(zip_derived_cl794, plain,
% 0.55/0.94      (![X0 : $i]: ((multiply @ X0 @ (inverse @ X0)) = (identity))),
% 0.55/0.94      inference('sup+', [status(thm)], [zip_derived_cl789, zip_derived_cl1])).
% 0.55/0.94  thf(zip_derived_cl3398, plain,
% 0.55/0.94      ((((multiply @ sk_c4 @ sk_c10) = (sk_c9)) | ((identity) = (sk_c9)))),
% 0.55/0.94      inference('demod', [status(thm)], [zip_derived_cl129, zip_derived_cl794])).
% 0.55/0.94  thf(zip_derived_cl3407, plain,
% 0.55/0.94      ((((multiply @ (inverse @ sk_c10) @ sk_c10) = (sk_c9))
% 0.55/0.94        | ((identity) = (sk_c9))
% 0.55/0.94        | ((identity) = (sk_c9)))),
% 0.55/0.94      inference('sup+', [status(thm)], [zip_derived_cl1378, zip_derived_cl3398])).
% 0.55/0.94  thf(zip_derived_cl1, plain,
% 0.55/0.94      (![X0 : $i]: ((multiply @ (inverse @ X0) @ X0) = (identity))),
% 0.55/0.94      inference('cnf', [status(esa)], [left_inverse])).
% 0.55/0.94  thf(zip_derived_cl3413, plain,
% 0.55/0.94      ((((identity) = (sk_c9))
% 0.55/0.94        | ((identity) = (sk_c9))
% 0.55/0.94        | ((identity) = (sk_c9)))),
% 0.55/0.94      inference('demod', [status(thm)], [zip_derived_cl3407, zip_derived_cl1])).
% 0.55/0.94  thf(zip_derived_cl3414, plain, (((identity) = (sk_c9))),
% 0.55/0.94      inference('simplify', [status(thm)], [zip_derived_cl3413])).
% 0.55/0.94  thf(zip_derived_cl762, plain,
% 0.55/0.94      (![X0 : $i]: ((multiply @ X0 @ identity) = (X0))),
% 0.55/0.94      inference('sup+', [status(thm)], [zip_derived_cl197, zip_derived_cl194])).
% 0.55/0.94  thf(zip_derived_cl3511, plain,
% 0.55/0.94      ((((sk_c1) = (inverse @ sk_c10)) | ((sk_c5) = (sk_c10)))),
% 0.55/0.94      inference('demod', [status(thm)],
% 0.55/0.94                [zip_derived_cl805, zip_derived_cl3414, zip_derived_cl762])).
% 0.55/0.94  thf(prove_this_21, conjecture,
% 0.55/0.94    (~( ( ( multiply @ sk_c5 @ sk_c9 ) = ( sk_c10 ) ) | 
% 0.55/0.94        ( ( multiply @ sk_c1 @ sk_c9 ) = ( sk_c10 ) ) ))).
% 0.55/0.94  thf(zf_stmt_5, negated_conjecture,
% 0.55/0.94    (( ( multiply @ sk_c5 @ sk_c9 ) = ( sk_c10 ) ) | 
% 0.55/0.94     ( ( multiply @ sk_c1 @ sk_c9 ) = ( sk_c10 ) )),
% 0.55/0.94    inference('cnf.neg', [status(esa)], [prove_this_21])).
% 0.55/0.94  thf(zip_derived_cl23, plain,
% 0.55/0.94      ((((multiply @ sk_c5 @ sk_c9) = (sk_c10))
% 0.55/0.94        | ((multiply @ sk_c1 @ sk_c9) = (sk_c10)))),
% 0.55/0.94      inference('cnf', [status(esa)], [zf_stmt_5])).
% 0.55/0.94  thf(zip_derived_cl3414, plain, (((identity) = (sk_c9))),
% 0.55/0.94      inference('simplify', [status(thm)], [zip_derived_cl3413])).
% 0.55/0.94  thf(zip_derived_cl762, plain,
% 0.55/0.94      (![X0 : $i]: ((multiply @ X0 @ identity) = (X0))),
% 0.55/0.94      inference('sup+', [status(thm)], [zip_derived_cl197, zip_derived_cl194])).
% 0.55/0.94  thf(zip_derived_cl3414, plain, (((identity) = (sk_c9))),
% 0.55/0.94      inference('simplify', [status(thm)], [zip_derived_cl3413])).
% 0.55/0.94  thf(zip_derived_cl762, plain,
% 0.55/0.94      (![X0 : $i]: ((multiply @ X0 @ identity) = (X0))),
% 0.55/0.94      inference('sup+', [status(thm)], [zip_derived_cl197, zip_derived_cl194])).
% 0.55/0.94  thf(zip_derived_cl3438, plain,
% 0.55/0.94      ((((sk_c5) = (sk_c10)) | ((sk_c1) = (sk_c10)))),
% 0.55/0.94      inference('demod', [status(thm)],
% 0.55/0.94                [zip_derived_cl23, zip_derived_cl3414, zip_derived_cl762, 
% 0.55/0.94                 zip_derived_cl3414, zip_derived_cl762])).
% 0.55/0.94  thf(zip_derived_cl3658, plain,
% 0.55/0.94      ((((inverse @ sk_c10) = (sk_c10))
% 0.55/0.94        | ((sk_c5) = (sk_c10))
% 0.55/0.94        | ((sk_c5) = (sk_c10)))),
% 0.55/0.94      inference('sup+', [status(thm)], [zip_derived_cl3511, zip_derived_cl3438])).
% 0.55/0.94  thf(zip_derived_cl3672, plain,
% 0.55/0.94      ((((sk_c5) = (sk_c10)) | ((inverse @ sk_c10) = (sk_c10)))),
% 0.55/0.94      inference('simplify', [status(thm)], [zip_derived_cl3658])).
% 0.55/0.94  thf(prove_this_12, conjecture,
% 0.55/0.94    (~( ( ( inverse @ sk_c5 ) = ( sk_c10 ) ) | 
% 0.55/0.94        ( ( inverse @ sk_c1 ) = ( sk_c10 ) ) ))).
% 0.55/0.94  thf(zf_stmt_6, negated_conjecture,
% 0.55/0.94    (( ( inverse @ sk_c5 ) = ( sk_c10 ) ) | 
% 0.55/0.94     ( ( inverse @ sk_c1 ) = ( sk_c10 ) )),
% 0.55/0.94    inference('cnf.neg', [status(esa)], [prove_this_12])).
% 0.55/0.94  thf(zip_derived_cl14, plain,
% 0.55/0.94      ((((inverse @ sk_c5) = (sk_c10)) | ((inverse @ sk_c1) = (sk_c10)))),
% 0.55/0.94      inference('cnf', [status(esa)], [zf_stmt_6])).
% 0.55/0.94  thf(zip_derived_cl1, plain,
% 0.55/0.94      (![X0 : $i]: ((multiply @ (inverse @ X0) @ X0) = (identity))),
% 0.55/0.94      inference('cnf', [status(esa)], [left_inverse])).
% 0.55/0.94  thf(zip_derived_cl57, plain,
% 0.55/0.94      ((((multiply @ sk_c10 @ sk_c1) = (identity))
% 0.55/0.94        | ((inverse @ sk_c5) = (sk_c10)))),
% 0.55/0.94      inference('sup+', [status(thm)], [zip_derived_cl14, zip_derived_cl1])).
% 0.55/0.94  thf(zip_derived_cl184, plain,
% 0.55/0.94      (![X0 : $i, X1 : $i]:
% 0.55/0.94         ((X0) = (multiply @ (inverse @ X1) @ (multiply @ X1 @ X0)))),
% 0.55/0.94      inference('demod', [status(thm)], [zip_derived_cl151, zip_derived_cl0])).
% 0.55/0.94  thf(zip_derived_cl205, plain,
% 0.55/0.94      ((((sk_c1) = (multiply @ (inverse @ sk_c10) @ identity))
% 0.55/0.94        | ((inverse @ sk_c5) = (sk_c10)))),
% 0.55/0.94      inference('sup+', [status(thm)], [zip_derived_cl57, zip_derived_cl184])).
% 0.55/0.94  thf(prove_this_20, conjecture,
% 0.55/0.94    (~( ( ( inverse @ sk_c5 ) = ( sk_c10 ) ) | 
% 0.55/0.94        ( ( multiply @ sk_c1 @ sk_c9 ) = ( sk_c10 ) ) ))).
% 0.55/0.94  thf(zf_stmt_7, negated_conjecture,
% 0.55/0.94    (( ( inverse @ sk_c5 ) = ( sk_c10 ) ) | 
% 0.55/0.94     ( ( multiply @ sk_c1 @ sk_c9 ) = ( sk_c10 ) )),
% 0.55/0.94    inference('cnf.neg', [status(esa)], [prove_this_20])).
% 0.55/0.94  thf(zip_derived_cl22, plain,
% 0.55/0.94      ((((inverse @ sk_c5) = (sk_c10))
% 0.55/0.94        | ((multiply @ sk_c1 @ sk_c9) = (sk_c10)))),
% 0.55/0.94      inference('cnf', [status(esa)], [zf_stmt_7])).
% 0.55/0.94  thf(zip_derived_cl474, plain,
% 0.55/0.94      ((((multiply @ (multiply @ (inverse @ sk_c10) @ identity) @ sk_c9)
% 0.55/0.94          = (sk_c10))
% 0.55/0.94        | ((inverse @ sk_c5) = (sk_c10))
% 0.55/0.94        | ((inverse @ sk_c5) = (sk_c10)))),
% 0.55/0.94      inference('sup+', [status(thm)], [zip_derived_cl205, zip_derived_cl22])).
% 0.55/0.94  thf(zip_derived_cl2, plain,
% 0.55/0.94      (![X0 : $i, X1 : $i, X2 : $i]:
% 0.55/0.94         ((multiply @ (multiply @ X0 @ X1) @ X2)
% 0.55/0.94           = (multiply @ X0 @ (multiply @ X1 @ X2)))),
% 0.55/0.94      inference('cnf', [status(esa)], [associativity])).
% 0.55/0.94  thf(zip_derived_cl0, plain,
% 0.55/0.94      (![X0 : $i]: ((multiply @ identity @ X0) = (X0))),
% 0.55/0.94      inference('cnf', [status(esa)], [left_identity])).
% 0.55/0.94  thf(zip_derived_cl488, plain,
% 0.55/0.94      ((((multiply @ (inverse @ sk_c10) @ sk_c9) = (sk_c10))
% 0.55/0.94        | ((inverse @ sk_c5) = (sk_c10))
% 0.55/0.94        | ((inverse @ sk_c5) = (sk_c10)))),
% 0.55/0.94      inference('demod', [status(thm)],
% 0.55/0.94                [zip_derived_cl474, zip_derived_cl2, zip_derived_cl0])).
% 0.55/0.94  thf(zip_derived_cl489, plain,
% 0.55/0.94      ((((inverse @ sk_c5) = (sk_c10))
% 0.55/0.94        | ((multiply @ (inverse @ sk_c10) @ sk_c9) = (sk_c10)))),
% 0.55/0.94      inference('simplify', [status(thm)], [zip_derived_cl488])).
% 0.55/0.94  thf(zip_derived_cl789, plain,
% 0.55/0.94      (![X0 : $i]: ((X0) = (inverse @ (inverse @ X0)))),
% 0.55/0.94      inference('sup+', [status(thm)], [zip_derived_cl762, zip_derived_cl197])).
% 0.55/0.94  thf(zip_derived_cl1417, plain,
% 0.55/0.94      ((((sk_c5) = (inverse @ sk_c10))
% 0.55/0.94        | ((multiply @ (inverse @ sk_c10) @ sk_c9) = (sk_c10)))),
% 0.55/0.94      inference('sup+', [status(thm)], [zip_derived_cl489, zip_derived_cl789])).
% 0.55/0.94  thf(zip_derived_cl3414, plain, (((identity) = (sk_c9))),
% 0.55/0.94      inference('simplify', [status(thm)], [zip_derived_cl3413])).
% 0.55/0.94  thf(zip_derived_cl762, plain,
% 0.55/0.94      (![X0 : $i]: ((multiply @ X0 @ identity) = (X0))),
% 0.55/0.94      inference('sup+', [status(thm)], [zip_derived_cl197, zip_derived_cl194])).
% 0.55/0.94  thf(zip_derived_cl3522, plain,
% 0.55/0.94      ((((sk_c5) = (inverse @ sk_c10)) | ((inverse @ sk_c10) = (sk_c10)))),
% 0.55/0.94      inference('demod', [status(thm)],
% 0.55/0.94                [zip_derived_cl1417, zip_derived_cl3414, zip_derived_cl762])).
% 0.55/0.94  thf(zip_derived_cl3933, plain,
% 0.55/0.94      ((((sk_c10) = (inverse @ sk_c10))
% 0.55/0.94        | ((inverse @ sk_c10) = (sk_c10))
% 0.55/0.94        | ((inverse @ sk_c10) = (sk_c10)))),
% 0.55/0.94      inference('sup+', [status(thm)], [zip_derived_cl3672, zip_derived_cl3522])).
% 0.55/0.94  thf(zip_derived_cl3934, plain, (((sk_c10) = (inverse @ sk_c10))),
% 0.55/0.94      inference('simplify', [status(thm)], [zip_derived_cl3933])).
% 0.55/0.94  thf(prove_this_49, conjecture,
% 0.55/0.94    (~( ( ( multiply @ X3 @ sk_c8 ) != ( sk_c9 ) ) | 
% 0.55/0.94        ( ( inverse @ X7 ) != ( X3 ) ) | 
% 0.55/0.94        ( ( multiply @ X7 @ X3 ) != ( sk_c9 ) ) | 
% 0.55/0.94        ( ( multiply @ X2 @ sk_c9 ) != ( sk_c10 ) ) | 
% 0.55/0.94        ( ( inverse @ X2 ) != ( sk_c10 ) ) | 
% 0.55/0.94        ( ( multiply @ sk_c10 @ sk_c8 ) != ( sk_c9 ) ) | 
% 0.55/0.94        ( ( inverse @ X1 ) != ( sk_c10 ) ) | 
% 0.55/0.94        ( ( multiply @ X1 @ sk_c10 ) != ( sk_c9 ) ) | 
% 0.55/0.94        ( ( multiply @ X6 @ sk_c10 ) != ( sk_c9 ) ) | 
% 0.55/0.94        ( ( inverse @ X5 ) != ( X6 ) ) | 
% 0.55/0.94        ( ( multiply @ X5 @ X6 ) != ( sk_c9 ) ) | 
% 0.55/0.94        ( ( multiply @ X4 @ sk_c9 ) != ( sk_c10 ) ) | 
% 0.55/0.94        ( ( inverse @ X4 ) != ( sk_c10 ) ) | 
% 0.55/0.94        ( ( multiply @ sk_c9 @ sk_c10 ) != ( sk_c8 ) ) ))).
% 0.55/0.94  thf(zf_stmt_8, negated_conjecture,
% 0.55/0.94    (( ( multiply @ X3 @ sk_c8 ) != ( sk_c9 ) ) | 
% 0.55/0.94     ( ( inverse @ X7 ) != ( X3 ) ) | 
% 0.55/0.94     ( ( multiply @ X7 @ X3 ) != ( sk_c9 ) ) | 
% 0.55/0.94     ( ( multiply @ X2 @ sk_c9 ) != ( sk_c10 ) ) | 
% 0.55/0.94     ( ( inverse @ X2 ) != ( sk_c10 ) ) | 
% 0.55/0.94     ( ( multiply @ sk_c10 @ sk_c8 ) != ( sk_c9 ) ) | 
% 0.55/0.94     ( ( inverse @ X1 ) != ( sk_c10 ) ) | 
% 0.55/0.94     ( ( multiply @ X1 @ sk_c10 ) != ( sk_c9 ) ) | 
% 0.55/0.94     ( ( multiply @ X6 @ sk_c10 ) != ( sk_c9 ) ) | 
% 0.55/0.94     ( ( inverse @ X5 ) != ( X6 ) ) | 
% 0.55/0.94     ( ( multiply @ X5 @ X6 ) != ( sk_c9 ) ) | 
% 0.55/0.94     ( ( multiply @ X4 @ sk_c9 ) != ( sk_c10 ) ) | 
% 0.55/0.94     ( ( inverse @ X4 ) != ( sk_c10 ) ) | 
% 0.55/0.94     ( ( multiply @ sk_c9 @ sk_c10 ) != ( sk_c8 ) )),
% 0.55/0.94    inference('cnf.neg', [status(esa)], [prove_this_49])).
% 0.55/0.94  thf(zip_derived_cl51, plain,
% 0.55/0.94      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i, X4 : $i, X5 : $i, X6 : $i]:
% 0.55/0.94         (((multiply @ X0 @ sk_c8) != (sk_c9))
% 0.55/0.94          | ((inverse @ X1) != (X0))
% 0.55/0.94          | ((multiply @ X1 @ X0) != (sk_c9))
% 0.55/0.94          | ((multiply @ X2 @ sk_c9) != (sk_c10))
% 0.55/0.94          | ((inverse @ X2) != (sk_c10))
% 0.55/0.94          | ((multiply @ sk_c10 @ sk_c8) != (sk_c9))
% 0.55/0.94          | ((inverse @ X3) != (sk_c10))
% 0.55/0.94          | ((multiply @ X3 @ sk_c10) != (sk_c9))
% 0.55/0.94          | ((multiply @ X4 @ sk_c10) != (sk_c9))
% 0.55/0.94          | ((inverse @ X5) != (X4))
% 0.55/0.94          | ((multiply @ X5 @ X4) != (sk_c9))
% 0.55/0.94          | ((multiply @ X6 @ sk_c9) != (sk_c10))
% 0.55/0.94          | ((inverse @ X6) != (sk_c10))
% 0.55/0.94          | ((multiply @ sk_c9 @ sk_c10) != (sk_c8)))),
% 0.55/0.94      inference('cnf', [status(esa)], [zf_stmt_8])).
% 0.55/0.94  thf(zip_derived_cl52, plain,
% 0.55/0.94      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i, X4 : $i, X5 : $i, X6 : $i]:
% 0.55/0.94         (((multiply @ X0 @ (multiply @ sk_c9 @ sk_c10)) != (sk_c9))
% 0.55/0.94          | ((inverse @ X1) != (X0))
% 0.55/0.94          | ((multiply @ X1 @ X0) != (sk_c9))
% 0.55/0.94          | ((multiply @ X2 @ sk_c9) != (sk_c10))
% 0.55/0.94          | ((inverse @ X2) != (sk_c10))
% 0.55/0.94          | ((multiply @ sk_c10 @ (multiply @ sk_c9 @ sk_c10)) != (sk_c9))
% 0.55/0.94          | ((inverse @ X3) != (sk_c10))
% 0.55/0.94          | ((multiply @ X3 @ sk_c10) != (sk_c9))
% 0.55/0.94          | ((multiply @ X4 @ sk_c10) != (sk_c9))
% 0.55/0.94          | ((inverse @ X5) != (X4))
% 0.55/0.94          | ((multiply @ X5 @ X4) != (sk_c9))
% 0.55/0.94          | ((multiply @ X6 @ sk_c9) != (sk_c10))
% 0.55/0.94          | ((inverse @ X6) != (sk_c10))
% 0.55/0.94          | ((multiply @ sk_c9 @ sk_c10) != (sk_c8)))),
% 0.55/0.94      inference('local_rewriting', [status(thm)], [zip_derived_cl51])).
% 0.55/0.94  thf(zip_derived_cl3414, plain, (((identity) = (sk_c9))),
% 0.55/0.94      inference('simplify', [status(thm)], [zip_derived_cl3413])).
% 0.55/0.94  thf(zip_derived_cl0, plain,
% 0.55/0.94      (![X0 : $i]: ((multiply @ identity @ X0) = (X0))),
% 0.55/0.94      inference('cnf', [status(esa)], [left_identity])).
% 0.55/0.94  thf(zip_derived_cl3414, plain, (((identity) = (sk_c9))),
% 0.55/0.94      inference('simplify', [status(thm)], [zip_derived_cl3413])).
% 0.55/0.94  thf(zip_derived_cl3414, plain, (((identity) = (sk_c9))),
% 0.55/0.94      inference('simplify', [status(thm)], [zip_derived_cl3413])).
% 0.55/0.94  thf(zip_derived_cl3414, plain, (((identity) = (sk_c9))),
% 0.55/0.94      inference('simplify', [status(thm)], [zip_derived_cl3413])).
% 0.55/0.94  thf(zip_derived_cl762, plain,
% 0.55/0.94      (![X0 : $i]: ((multiply @ X0 @ identity) = (X0))),
% 0.55/0.94      inference('sup+', [status(thm)], [zip_derived_cl197, zip_derived_cl194])).
% 0.55/0.94  thf(zip_derived_cl3414, plain, (((identity) = (sk_c9))),
% 0.55/0.94      inference('simplify', [status(thm)], [zip_derived_cl3413])).
% 0.55/0.94  thf(zip_derived_cl0, plain,
% 0.55/0.94      (![X0 : $i]: ((multiply @ identity @ X0) = (X0))),
% 0.55/0.94      inference('cnf', [status(esa)], [left_identity])).
% 0.55/0.94  thf(zip_derived_cl3414, plain, (((identity) = (sk_c9))),
% 0.55/0.94      inference('simplify', [status(thm)], [zip_derived_cl3413])).
% 0.55/0.94  thf(zip_derived_cl3414, plain, (((identity) = (sk_c9))),
% 0.55/0.94      inference('simplify', [status(thm)], [zip_derived_cl3413])).
% 0.55/0.94  thf(zip_derived_cl3414, plain, (((identity) = (sk_c9))),
% 0.55/0.94      inference('simplify', [status(thm)], [zip_derived_cl3413])).
% 0.55/0.94  thf(zip_derived_cl3414, plain, (((identity) = (sk_c9))),
% 0.55/0.94      inference('simplify', [status(thm)], [zip_derived_cl3413])).
% 0.55/0.94  thf(zip_derived_cl3414, plain, (((identity) = (sk_c9))),
% 0.55/0.94      inference('simplify', [status(thm)], [zip_derived_cl3413])).
% 0.55/0.94  thf(zip_derived_cl762, plain,
% 0.55/0.94      (![X0 : $i]: ((multiply @ X0 @ identity) = (X0))),
% 0.55/0.94      inference('sup+', [status(thm)], [zip_derived_cl197, zip_derived_cl194])).
% 0.55/0.94  thf(zip_derived_cl3414, plain, (((identity) = (sk_c9))),
% 0.55/0.94      inference('simplify', [status(thm)], [zip_derived_cl3413])).
% 0.55/0.94  thf(zip_derived_cl0, plain,
% 0.55/0.94      (![X0 : $i]: ((multiply @ identity @ X0) = (X0))),
% 0.55/0.94      inference('cnf', [status(esa)], [left_identity])).
% 0.55/0.94  thf(zip_derived_cl3463, plain,
% 0.55/0.94      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i, X4 : $i, X5 : $i, X6 : $i]:
% 0.55/0.94         (((multiply @ X0 @ sk_c10) != (identity))
% 0.55/0.94          | ((inverse @ X1) != (X0))
% 0.55/0.94          | ((multiply @ X1 @ X0) != (identity))
% 0.55/0.94          | ((X2) != (sk_c10))
% 0.55/0.94          | ((inverse @ X2) != (sk_c10))
% 0.55/0.94          | ((multiply @ sk_c10 @ sk_c10) != (identity))
% 0.55/0.94          | ((inverse @ X3) != (sk_c10))
% 0.55/0.94          | ((multiply @ X3 @ sk_c10) != (identity))
% 0.55/0.94          | ((multiply @ X4 @ sk_c10) != (identity))
% 0.55/0.94          | ((inverse @ X5) != (X4))
% 0.55/0.94          | ((multiply @ X5 @ X4) != (identity))
% 0.55/0.94          | ((X6) != (sk_c10))
% 0.55/0.94          | ((inverse @ X6) != (sk_c10))
% 0.55/0.94          | ((sk_c10) != (sk_c8)))),
% 0.55/0.94      inference('demod', [status(thm)],
% 0.55/0.94                [zip_derived_cl52, zip_derived_cl3414, zip_derived_cl0, 
% 0.55/0.94                 zip_derived_cl3414, zip_derived_cl3414, zip_derived_cl3414, 
% 0.55/0.94                 zip_derived_cl762, zip_derived_cl3414, zip_derived_cl0, 
% 0.55/0.94                 zip_derived_cl3414, zip_derived_cl3414, zip_derived_cl3414, 
% 0.55/0.94                 zip_derived_cl3414, zip_derived_cl3414, zip_derived_cl762, 
% 0.55/0.94                 zip_derived_cl3414, zip_derived_cl0])).
% 0.55/0.94  thf(prove_this_4, conjecture,
% 0.55/0.94    (~( ( ( inverse @ sk_c5 ) = ( sk_c10 ) ) | 
% 0.55/0.94        ( ( multiply @ sk_c9 @ sk_c10 ) = ( sk_c8 ) ) ))).
% 0.55/0.94  thf(zf_stmt_9, negated_conjecture,
% 0.55/0.94    (( ( inverse @ sk_c5 ) = ( sk_c10 ) ) | 
% 0.55/0.94     ( ( multiply @ sk_c9 @ sk_c10 ) = ( sk_c8 ) )),
% 0.55/0.94    inference('cnf.neg', [status(esa)], [prove_this_4])).
% 0.55/0.94  thf(zip_derived_cl6, plain,
% 0.55/0.94      ((((inverse @ sk_c5) = (sk_c10))
% 0.55/0.94        | ((multiply @ sk_c9 @ sk_c10) = (sk_c8)))),
% 0.55/0.94      inference('cnf', [status(esa)], [zf_stmt_9])).
% 0.55/0.94  thf(zip_derived_cl1, plain,
% 0.55/0.94      (![X0 : $i]: ((multiply @ (inverse @ X0) @ X0) = (identity))),
% 0.55/0.94      inference('cnf', [status(esa)], [left_inverse])).
% 0.55/0.94  thf(zip_derived_cl55, plain,
% 0.55/0.94      ((((multiply @ sk_c10 @ sk_c5) = (identity))
% 0.55/0.94        | ((multiply @ sk_c9 @ sk_c10) = (sk_c8)))),
% 0.55/0.94      inference('sup+', [status(thm)], [zip_derived_cl6, zip_derived_cl1])).
% 0.55/0.94  thf(zip_derived_cl184, plain,
% 0.55/0.94      (![X0 : $i, X1 : $i]:
% 0.55/0.94         ((X0) = (multiply @ (inverse @ X1) @ (multiply @ X1 @ X0)))),
% 0.55/0.94      inference('demod', [status(thm)], [zip_derived_cl151, zip_derived_cl0])).
% 0.55/0.94  thf(zip_derived_cl202, plain,
% 0.55/0.94      ((((sk_c5) = (multiply @ (inverse @ sk_c10) @ identity))
% 0.55/0.94        | ((multiply @ sk_c9 @ sk_c10) = (sk_c8)))),
% 0.55/0.94      inference('sup+', [status(thm)], [zip_derived_cl55, zip_derived_cl184])).
% 0.55/0.94  thf(prove_this_5, conjecture,
% 0.55/0.94    (~( ( ( multiply @ sk_c5 @ sk_c9 ) = ( sk_c10 ) ) | 
% 0.55/0.94        ( ( multiply @ sk_c9 @ sk_c10 ) = ( sk_c8 ) ) ))).
% 0.55/0.94  thf(zf_stmt_10, negated_conjecture,
% 0.55/0.94    (( ( multiply @ sk_c5 @ sk_c9 ) = ( sk_c10 ) ) | 
% 0.55/0.94     ( ( multiply @ sk_c9 @ sk_c10 ) = ( sk_c8 ) )),
% 0.55/0.94    inference('cnf.neg', [status(esa)], [prove_this_5])).
% 0.55/0.94  thf(zip_derived_cl7, plain,
% 0.55/0.94      ((((multiply @ sk_c5 @ sk_c9) = (sk_c10))
% 0.55/0.94        | ((multiply @ sk_c9 @ sk_c10) = (sk_c8)))),
% 0.55/0.94      inference('cnf', [status(esa)], [zf_stmt_10])).
% 0.55/0.94  thf(zip_derived_cl425, plain,
% 0.55/0.94      ((((multiply @ (multiply @ (inverse @ sk_c10) @ identity) @ sk_c9)
% 0.55/0.94          = (sk_c10))
% 0.55/0.94        | ((multiply @ sk_c9 @ sk_c10) = (sk_c8))
% 0.55/0.94        | ((multiply @ sk_c9 @ sk_c10) = (sk_c8)))),
% 0.55/0.94      inference('sup+', [status(thm)], [zip_derived_cl202, zip_derived_cl7])).
% 0.55/0.94  thf(zip_derived_cl2, plain,
% 0.55/0.94      (![X0 : $i, X1 : $i, X2 : $i]:
% 0.55/0.94         ((multiply @ (multiply @ X0 @ X1) @ X2)
% 0.55/0.94           = (multiply @ X0 @ (multiply @ X1 @ X2)))),
% 0.55/0.94      inference('cnf', [status(esa)], [associativity])).
% 0.55/0.94  thf(zip_derived_cl0, plain,
% 0.55/0.94      (![X0 : $i]: ((multiply @ identity @ X0) = (X0))),
% 0.55/0.94      inference('cnf', [status(esa)], [left_identity])).
% 0.55/0.94  thf(zip_derived_cl428, plain,
% 0.55/0.94      ((((multiply @ (inverse @ sk_c10) @ sk_c9) = (sk_c10))
% 0.55/0.94        | ((multiply @ sk_c9 @ sk_c10) = (sk_c8))
% 0.55/0.94        | ((multiply @ sk_c9 @ sk_c10) = (sk_c8)))),
% 0.55/0.94      inference('demod', [status(thm)],
% 0.55/0.94                [zip_derived_cl425, zip_derived_cl2, zip_derived_cl0])).
% 0.55/0.94  thf(zip_derived_cl429, plain,
% 0.55/0.94      ((((multiply @ sk_c9 @ sk_c10) = (sk_c8))
% 0.55/0.94        | ((multiply @ (inverse @ sk_c10) @ sk_c9) = (sk_c10)))),
% 0.55/0.94      inference('simplify', [status(thm)], [zip_derived_cl428])).
% 0.55/0.94  thf(zip_derived_cl3414, plain, (((identity) = (sk_c9))),
% 0.55/0.94      inference('simplify', [status(thm)], [zip_derived_cl3413])).
% 0.55/0.94  thf(zip_derived_cl0, plain,
% 0.55/0.94      (![X0 : $i]: ((multiply @ identity @ X0) = (X0))),
% 0.55/0.94      inference('cnf', [status(esa)], [left_identity])).
% 0.55/0.94  thf(zip_derived_cl3414, plain, (((identity) = (sk_c9))),
% 0.55/0.94      inference('simplify', [status(thm)], [zip_derived_cl3413])).
% 0.55/0.94  thf(zip_derived_cl762, plain,
% 0.55/0.94      (![X0 : $i]: ((multiply @ X0 @ identity) = (X0))),
% 0.55/0.94      inference('sup+', [status(thm)], [zip_derived_cl197, zip_derived_cl194])).
% 0.55/0.94  thf(zip_derived_cl3499, plain,
% 0.55/0.94      ((((sk_c10) = (sk_c8)) | ((inverse @ sk_c10) = (sk_c10)))),
% 0.55/0.94      inference('demod', [status(thm)],
% 0.55/0.94                [zip_derived_cl429, zip_derived_cl3414, zip_derived_cl0, 
% 0.55/0.94                 zip_derived_cl3414, zip_derived_cl762])).
% 0.55/0.94  thf(prove_this_3, conjecture,
% 0.55/0.94    (~( ( ( multiply @ sk_c10 @ sk_c8 ) = ( sk_c9 ) ) | 
% 0.55/0.94        ( ( multiply @ sk_c9 @ sk_c10 ) = ( sk_c8 ) ) ))).
% 0.55/0.94  thf(zf_stmt_11, negated_conjecture,
% 0.55/0.94    (( ( multiply @ sk_c10 @ sk_c8 ) = ( sk_c9 ) ) | 
% 0.55/0.94     ( ( multiply @ sk_c9 @ sk_c10 ) = ( sk_c8 ) )),
% 0.55/0.94    inference('cnf.neg', [status(esa)], [prove_this_3])).
% 0.55/0.94  thf(zip_derived_cl5, plain,
% 0.55/0.94      ((((multiply @ sk_c10 @ sk_c8) = (sk_c9))
% 0.55/0.94        | ((multiply @ sk_c9 @ sk_c10) = (sk_c8)))),
% 0.55/0.94      inference('cnf', [status(esa)], [zf_stmt_11])).
% 0.55/0.94  thf(zip_derived_cl184, plain,
% 0.55/0.94      (![X0 : $i, X1 : $i]:
% 0.55/0.94         ((X0) = (multiply @ (inverse @ X1) @ (multiply @ X1 @ X0)))),
% 0.55/0.94      inference('demod', [status(thm)], [zip_derived_cl151, zip_derived_cl0])).
% 0.55/0.94  thf(zip_derived_cl200, plain,
% 0.55/0.94      ((((sk_c8) = (multiply @ (inverse @ sk_c10) @ sk_c9))
% 0.55/0.94        | ((multiply @ sk_c9 @ sk_c10) = (sk_c8)))),
% 0.55/0.94      inference('sup+', [status(thm)], [zip_derived_cl5, zip_derived_cl184])).
% 0.55/0.94  thf(zip_derived_cl299, plain,
% 0.55/0.94      ((((multiply @ (inverse @ sk_c10) @ sk_c9) != (multiply @ sk_c9 @ sk_c10))
% 0.55/0.94        | ((multiply @ sk_c9 @ sk_c10) = (sk_c8)))),
% 0.55/0.94      inference('eq_fact', [status(thm)], [zip_derived_cl200])).
% 0.55/0.94  thf(zip_derived_cl3414, plain, (((identity) = (sk_c9))),
% 0.55/0.94      inference('simplify', [status(thm)], [zip_derived_cl3413])).
% 0.55/0.94  thf(zip_derived_cl762, plain,
% 0.55/0.94      (![X0 : $i]: ((multiply @ X0 @ identity) = (X0))),
% 0.55/0.94      inference('sup+', [status(thm)], [zip_derived_cl197, zip_derived_cl194])).
% 0.55/0.94  thf(zip_derived_cl3414, plain, (((identity) = (sk_c9))),
% 0.55/0.94      inference('simplify', [status(thm)], [zip_derived_cl3413])).
% 0.55/0.94  thf(zip_derived_cl0, plain,
% 0.55/0.94      (![X0 : $i]: ((multiply @ identity @ X0) = (X0))),
% 0.55/0.94      inference('cnf', [status(esa)], [left_identity])).
% 0.55/0.94  thf(zip_derived_cl3414, plain, (((identity) = (sk_c9))),
% 0.55/0.94      inference('simplify', [status(thm)], [zip_derived_cl3413])).
% 0.55/0.94  thf(zip_derived_cl0, plain,
% 0.55/0.94      (![X0 : $i]: ((multiply @ identity @ X0) = (X0))),
% 0.55/0.94      inference('cnf', [status(esa)], [left_identity])).
% 0.55/0.94  thf(zip_derived_cl3494, plain,
% 0.55/0.94      ((((inverse @ sk_c10) != (sk_c10)) | ((sk_c10) = (sk_c8)))),
% 0.55/0.94      inference('demod', [status(thm)],
% 0.55/0.94                [zip_derived_cl299, zip_derived_cl3414, zip_derived_cl762, 
% 0.55/0.94                 zip_derived_cl3414, zip_derived_cl0, zip_derived_cl3414, 
% 0.55/0.94                 zip_derived_cl0])).
% 0.55/0.94  thf(zip_derived_cl3636, plain, (((sk_c10) = (sk_c8))),
% 0.55/0.94      inference('clc', [status(thm)], [zip_derived_cl3499, zip_derived_cl3494])).
% 0.55/0.94  thf(zip_derived_cl3637, plain,
% 0.55/0.94      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i, X4 : $i, X5 : $i, X6 : $i]:
% 0.55/0.94         (((multiply @ X0 @ sk_c10) != (identity))
% 0.55/0.94          | ((inverse @ X1) != (X0))
% 0.55/0.94          | ((multiply @ X1 @ X0) != (identity))
% 0.55/0.94          | ((X2) != (sk_c10))
% 0.55/0.94          | ((inverse @ X2) != (sk_c10))
% 0.55/0.94          | ((multiply @ sk_c10 @ sk_c10) != (identity))
% 0.55/0.94          | ((inverse @ X3) != (sk_c10))
% 0.55/0.94          | ((multiply @ X3 @ sk_c10) != (identity))
% 0.55/0.94          | ((multiply @ X4 @ sk_c10) != (identity))
% 0.55/0.94          | ((inverse @ X5) != (X4))
% 0.55/0.94          | ((multiply @ X5 @ X4) != (identity))
% 0.55/0.94          | ((X6) != (sk_c10))
% 0.55/0.94          | ((inverse @ X6) != (sk_c10))
% 0.55/0.94          | ((sk_c10) != (sk_c10)))),
% 0.55/0.94      inference('demod', [status(thm)],
% 0.55/0.94                [zip_derived_cl3463, zip_derived_cl3636])).
% 0.55/0.94  thf(zip_derived_cl3638, plain,
% 0.55/0.94      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i, X4 : $i, X5 : $i, X6 : $i]:
% 0.55/0.94         (((inverse @ X6) != (sk_c10))
% 0.55/0.94          | ((X6) != (sk_c10))
% 0.55/0.94          | ((multiply @ X5 @ X4) != (identity))
% 0.55/0.94          | ((inverse @ X5) != (X4))
% 0.55/0.94          | ((multiply @ X4 @ sk_c10) != (identity))
% 0.55/0.94          | ((multiply @ X3 @ sk_c10) != (identity))
% 0.55/0.94          | ((inverse @ X3) != (sk_c10))
% 0.55/0.94          | ((multiply @ sk_c10 @ sk_c10) != (identity))
% 0.55/0.94          | ((inverse @ X2) != (sk_c10))
% 0.55/0.94          | ((X2) != (sk_c10))
% 0.55/0.94          | ((multiply @ X1 @ X0) != (identity))
% 0.55/0.94          | ((inverse @ X1) != (X0))
% 0.55/0.94          | ((multiply @ X0 @ sk_c10) != (identity)))),
% 0.55/0.94      inference('simplify', [status(thm)], [zip_derived_cl3637])).
% 0.55/0.94  thf(zip_derived_cl3934, plain, (((sk_c10) = (inverse @ sk_c10))),
% 0.55/0.94      inference('simplify', [status(thm)], [zip_derived_cl3933])).
% 0.55/0.94  thf(zip_derived_cl1, plain,
% 0.55/0.94      (![X0 : $i]: ((multiply @ (inverse @ X0) @ X0) = (identity))),
% 0.55/0.94      inference('cnf', [status(esa)], [left_inverse])).
% 0.55/0.94  thf(zip_derived_cl3940, plain, (((multiply @ sk_c10 @ sk_c10) = (identity))),
% 0.55/0.94      inference('sup+', [status(thm)], [zip_derived_cl3934, zip_derived_cl1])).
% 0.55/0.94  thf(zip_derived_cl3957, plain,
% 0.55/0.94      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i, X4 : $i, X5 : $i, X6 : $i]:
% 0.55/0.94         (((inverse @ X6) != (sk_c10))
% 0.55/0.94          | ((X6) != (sk_c10))
% 0.55/0.94          | ((multiply @ X5 @ X4) != (identity))
% 0.55/0.94          | ((inverse @ X5) != (X4))
% 0.55/0.94          | ((multiply @ X4 @ sk_c10) != (identity))
% 0.55/0.94          | ((multiply @ X3 @ sk_c10) != (identity))
% 0.55/0.94          | ((inverse @ X3) != (sk_c10))
% 0.55/0.94          | ((identity) != (identity))
% 0.55/0.94          | ((inverse @ X2) != (sk_c10))
% 0.55/0.94          | ((X2) != (sk_c10))
% 0.55/0.94          | ((multiply @ X1 @ X0) != (identity))
% 0.55/0.94          | ((inverse @ X1) != (X0))
% 0.55/0.94          | ((multiply @ X0 @ sk_c10) != (identity)))),
% 0.55/0.94      inference('demod', [status(thm)],
% 0.55/0.94                [zip_derived_cl3638, zip_derived_cl3940])).
% 0.55/0.94  thf(zip_derived_cl3958, plain,
% 0.55/0.94      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i, X4 : $i, X5 : $i, X6 : $i]:
% 0.55/0.94         (((multiply @ X0 @ sk_c10) != (identity))
% 0.55/0.94          | ((inverse @ X1) != (X0))
% 0.55/0.94          | ((multiply @ X1 @ X0) != (identity))
% 0.55/0.94          | ((X2) != (sk_c10))
% 0.55/0.94          | ((inverse @ X2) != (sk_c10))
% 0.55/0.94          | ((inverse @ X3) != (sk_c10))
% 0.55/0.94          | ((multiply @ X3 @ sk_c10) != (identity))
% 0.55/0.94          | ((multiply @ X4 @ sk_c10) != (identity))
% 0.55/0.94          | ((inverse @ X5) != (X4))
% 0.55/0.94          | ((multiply @ X5 @ X4) != (identity))
% 0.55/0.94          | ((X6) != (sk_c10))
% 0.55/0.94          | ((inverse @ X6) != (sk_c10)))),
% 0.55/0.94      inference('simplify', [status(thm)], [zip_derived_cl3957])).
% 0.55/0.94  thf(zip_derived_cl4008, plain,
% 0.55/0.94      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i, X4 : $i, X5 : $i]:
% 0.55/0.94         (((inverse @ X0) != (sk_c10))
% 0.55/0.94          | ((X0) != (sk_c10))
% 0.55/0.94          | ((multiply @ X2 @ X1) != (identity))
% 0.55/0.94          | ((inverse @ X2) != (X1))
% 0.55/0.94          | ((multiply @ X1 @ sk_c10) != (identity))
% 0.55/0.94          | ((multiply @ X3 @ sk_c10) != (identity))
% 0.55/0.94          | ((inverse @ X3) != (sk_c10))
% 0.55/0.94          | ((inverse @ sk_c10) != (sk_c10))
% 0.55/0.94          | ((multiply @ X5 @ X4) != (identity))
% 0.55/0.94          | ((inverse @ X5) != (X4))
% 0.55/0.94          | ((multiply @ X4 @ sk_c10) != (identity)))),
% 0.55/0.94      inference('eq_res', [status(thm)], [zip_derived_cl3958])).
% 0.55/0.94  thf(zip_derived_cl3934, plain, (((sk_c10) = (inverse @ sk_c10))),
% 0.55/0.94      inference('simplify', [status(thm)], [zip_derived_cl3933])).
% 0.55/0.94  thf(zip_derived_cl4009, plain,
% 0.55/0.94      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i, X4 : $i, X5 : $i]:
% 0.55/0.94         (((inverse @ X0) != (sk_c10))
% 0.55/0.94          | ((X0) != (sk_c10))
% 0.55/0.94          | ((multiply @ X2 @ X1) != (identity))
% 0.55/0.94          | ((inverse @ X2) != (X1))
% 0.55/0.94          | ((multiply @ X1 @ sk_c10) != (identity))
% 0.55/0.94          | ((multiply @ X3 @ sk_c10) != (identity))
% 0.55/0.94          | ((inverse @ X3) != (sk_c10))
% 0.55/0.94          | ((sk_c10) != (sk_c10))
% 0.55/0.94          | ((multiply @ X5 @ X4) != (identity))
% 0.55/0.94          | ((inverse @ X5) != (X4))
% 0.55/0.94          | ((multiply @ X4 @ sk_c10) != (identity)))),
% 0.55/0.94      inference('demod', [status(thm)],
% 0.55/0.94                [zip_derived_cl4008, zip_derived_cl3934])).
% 0.55/0.94  thf(zip_derived_cl4010, plain,
% 0.55/0.94      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i, X4 : $i, X5 : $i]:
% 0.55/0.94         (((multiply @ X4 @ sk_c10) != (identity))
% 0.55/0.94          | ((inverse @ X5) != (X4))
% 0.55/0.94          | ((multiply @ X5 @ X4) != (identity))
% 0.55/0.94          | ((inverse @ X3) != (sk_c10))
% 0.55/0.94          | ((multiply @ X3 @ sk_c10) != (identity))
% 0.55/0.94          | ((multiply @ X1 @ sk_c10) != (identity))
% 0.55/0.94          | ((inverse @ X2) != (X1))
% 0.55/0.94          | ((multiply @ X2 @ X1) != (identity))
% 0.55/0.94          | ((X0) != (sk_c10))
% 0.55/0.94          | ((inverse @ X0) != (sk_c10)))),
% 0.55/0.94      inference('simplify', [status(thm)], [zip_derived_cl4009])).
% 0.55/0.94  thf(zip_derived_cl4011, plain,
% 0.55/0.94      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i, X4 : $i]:
% 0.55/0.94         (((inverse @ sk_c10) != (sk_c10))
% 0.55/0.94          | ((multiply @ X1 @ X0) != (identity))
% 0.55/0.94          | ((inverse @ X1) != (X0))
% 0.55/0.94          | ((multiply @ X0 @ sk_c10) != (identity))
% 0.55/0.94          | ((multiply @ X2 @ sk_c10) != (identity))
% 0.55/0.94          | ((inverse @ X2) != (sk_c10))
% 0.55/0.94          | ((multiply @ X4 @ X3) != (identity))
% 0.55/0.94          | ((inverse @ X4) != (X3))
% 0.55/0.94          | ((multiply @ X3 @ sk_c10) != (identity)))),
% 0.55/0.94      inference('eq_res', [status(thm)], [zip_derived_cl4010])).
% 0.55/0.94  thf(zip_derived_cl3934, plain, (((sk_c10) = (inverse @ sk_c10))),
% 0.55/0.94      inference('simplify', [status(thm)], [zip_derived_cl3933])).
% 0.55/0.94  thf(zip_derived_cl4012, plain,
% 0.55/0.94      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i, X4 : $i]:
% 0.55/0.94         (((sk_c10) != (sk_c10))
% 0.55/0.94          | ((multiply @ X1 @ X0) != (identity))
% 0.55/0.94          | ((inverse @ X1) != (X0))
% 0.55/0.94          | ((multiply @ X0 @ sk_c10) != (identity))
% 0.55/0.94          | ((multiply @ X2 @ sk_c10) != (identity))
% 0.55/0.94          | ((inverse @ X2) != (sk_c10))
% 0.55/0.94          | ((multiply @ X4 @ X3) != (identity))
% 0.55/0.94          | ((inverse @ X4) != (X3))
% 0.55/0.94          | ((multiply @ X3 @ sk_c10) != (identity)))),
% 0.55/0.94      inference('demod', [status(thm)],
% 0.55/0.94                [zip_derived_cl4011, zip_derived_cl3934])).
% 0.55/0.94  thf(zip_derived_cl4013, plain,
% 0.55/0.94      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i, X4 : $i]:
% 0.55/0.94         (((multiply @ X3 @ sk_c10) != (identity))
% 0.55/0.94          | ((inverse @ X4) != (X3))
% 0.55/0.94          | ((multiply @ X4 @ X3) != (identity))
% 0.55/0.94          | ((inverse @ X2) != (sk_c10))
% 0.55/0.94          | ((multiply @ X2 @ sk_c10) != (identity))
% 0.55/0.94          | ((multiply @ X0 @ sk_c10) != (identity))
% 0.55/0.94          | ((inverse @ X1) != (X0))
% 0.55/0.94          | ((multiply @ X1 @ X0) != (identity)))),
% 0.55/0.94      inference('simplify', [status(thm)], [zip_derived_cl4012])).
% 0.55/0.94  thf(zip_derived_cl4024, plain,
% 0.55/0.94      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i]:
% 0.55/0.94         (((multiply @ X1 @ X0) != (identity))
% 0.55/0.94          | ((inverse @ X1) != (X0))
% 0.55/0.94          | ((multiply @ X0 @ sk_c10) != (identity))
% 0.55/0.94          | ((multiply @ X2 @ sk_c10) != (identity))
% 0.55/0.94          | ((inverse @ X2) != (sk_c10))
% 0.55/0.94          | ((multiply @ X3 @ (inverse @ X3)) != (identity))
% 0.55/0.94          | ((multiply @ (inverse @ X3) @ sk_c10) != (identity)))),
% 0.55/0.94      inference('eq_res', [status(thm)], [zip_derived_cl4013])).
% 0.55/0.94  thf(zip_derived_cl794, plain,
% 0.55/0.94      (![X0 : $i]: ((multiply @ X0 @ (inverse @ X0)) = (identity))),
% 0.55/0.94      inference('sup+', [status(thm)], [zip_derived_cl789, zip_derived_cl1])).
% 0.55/0.94  thf(zip_derived_cl4025, plain,
% 0.55/0.94      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i]:
% 0.55/0.94         (((multiply @ X1 @ X0) != (identity))
% 0.55/0.94          | ((inverse @ X1) != (X0))
% 0.55/0.94          | ((multiply @ X0 @ sk_c10) != (identity))
% 0.55/0.94          | ((multiply @ X2 @ sk_c10) != (identity))
% 0.55/0.94          | ((inverse @ X2) != (sk_c10))
% 0.55/0.94          | ((identity) != (identity))
% 0.55/0.94          | ((multiply @ (inverse @ X3) @ sk_c10) != (identity)))),
% 0.55/0.94      inference('demod', [status(thm)], [zip_derived_cl4024, zip_derived_cl794])).
% 0.55/0.94  thf(zip_derived_cl4026, plain,
% 0.55/0.94      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i]:
% 0.55/0.94         (((multiply @ (inverse @ X3) @ sk_c10) != (identity))
% 0.55/0.94          | ((inverse @ X2) != (sk_c10))
% 0.55/0.94          | ((multiply @ X2 @ sk_c10) != (identity))
% 0.55/0.94          | ((multiply @ X0 @ sk_c10) != (identity))
% 0.55/0.94          | ((inverse @ X1) != (X0))
% 0.55/0.94          | ((multiply @ X1 @ X0) != (identity)))),
% 0.55/0.94      inference('simplify', [status(thm)], [zip_derived_cl4025])).
% 0.55/0.94  thf(zip_derived_cl4030, plain,
% 0.55/0.94      (![X0 : $i, X1 : $i, X2 : $i]:
% 0.55/0.94         (((sk_c10) != (sk_c10))
% 0.55/0.94          | ((multiply @ X1 @ X0) != (identity))
% 0.55/0.94          | ((inverse @ X1) != (X0))
% 0.55/0.94          | ((multiply @ X0 @ sk_c10) != (identity))
% 0.55/0.94          | ((multiply @ sk_c10 @ sk_c10) != (identity))
% 0.55/0.94          | ((multiply @ (inverse @ X2) @ sk_c10) != (identity)))),
% 0.55/0.94      inference('sup-', [status(thm)], [zip_derived_cl3934, zip_derived_cl4026])).
% 0.55/0.94  thf(zip_derived_cl3940, plain, (((multiply @ sk_c10 @ sk_c10) = (identity))),
% 0.55/0.94      inference('sup+', [status(thm)], [zip_derived_cl3934, zip_derived_cl1])).
% 0.55/0.94  thf(zip_derived_cl4038, plain,
% 0.55/0.94      (![X0 : $i, X1 : $i, X2 : $i]:
% 0.55/0.94         (((sk_c10) != (sk_c10))
% 0.55/0.94          | ((multiply @ X1 @ X0) != (identity))
% 0.55/0.94          | ((inverse @ X1) != (X0))
% 0.55/0.94          | ((multiply @ X0 @ sk_c10) != (identity))
% 0.55/0.94          | ((identity) != (identity))
% 0.55/0.94          | ((multiply @ (inverse @ X2) @ sk_c10) != (identity)))),
% 0.55/0.94      inference('demod', [status(thm)],
% 0.55/0.94                [zip_derived_cl4030, zip_derived_cl3940])).
% 0.55/0.94  thf(zip_derived_cl4039, plain,
% 0.55/0.94      (![X0 : $i, X1 : $i, X2 : $i]:
% 0.55/0.94         (((multiply @ (inverse @ X2) @ sk_c10) != (identity))
% 0.55/0.94          | ((multiply @ X0 @ sk_c10) != (identity))
% 0.55/0.94          | ((inverse @ X1) != (X0))
% 0.55/0.94          | ((multiply @ X1 @ X0) != (identity)))),
% 0.55/0.94      inference('simplify', [status(thm)], [zip_derived_cl4038])).
% 0.55/0.94  thf(zip_derived_cl4057, plain,
% 0.55/0.94      (![X0 : $i, X1 : $i]:
% 0.55/0.94         (((multiply @ X0 @ (inverse @ X0)) != (identity))
% 0.55/0.94          | ((multiply @ (inverse @ X0) @ sk_c10) != (identity))
% 0.55/0.94          | ((multiply @ (inverse @ X1) @ sk_c10) != (identity)))),
% 0.55/0.94      inference('eq_res', [status(thm)], [zip_derived_cl4039])).
% 0.55/0.94  thf(zip_derived_cl794, plain,
% 0.55/0.94      (![X0 : $i]: ((multiply @ X0 @ (inverse @ X0)) = (identity))),
% 0.55/0.94      inference('sup+', [status(thm)], [zip_derived_cl789, zip_derived_cl1])).
% 0.55/0.94  thf(zip_derived_cl4058, plain,
% 0.55/0.94      (![X0 : $i, X1 : $i]:
% 0.55/0.94         (((identity) != (identity))
% 0.55/0.94          | ((multiply @ (inverse @ X0) @ sk_c10) != (identity))
% 0.55/0.94          | ((multiply @ (inverse @ X1) @ sk_c10) != (identity)))),
% 0.55/0.94      inference('demod', [status(thm)], [zip_derived_cl4057, zip_derived_cl794])).
% 0.55/0.94  thf(zip_derived_cl4059, plain,
% 0.55/0.94      (![X0 : $i, X1 : $i]:
% 0.55/0.94         (((multiply @ (inverse @ X1) @ sk_c10) != (identity))
% 0.55/0.94          | ((multiply @ (inverse @ X0) @ sk_c10) != (identity)))),
% 0.55/0.94      inference('simplify', [status(thm)], [zip_derived_cl4058])).
% 0.55/0.94  thf(zip_derived_cl4155, plain,
% 0.55/0.94      (![X0 : $i]: ((multiply @ (inverse @ X0) @ sk_c10) != (identity))),
% 0.55/0.94      inference('condensation', [status(thm)], [zip_derived_cl4059])).
% 0.55/0.94  thf(zip_derived_cl4156, plain, (((identity) != (identity))),
% 0.55/0.94      inference('sup-', [status(thm)], [zip_derived_cl1, zip_derived_cl4155])).
% 0.55/0.94  thf(zip_derived_cl4165, plain, ($false),
% 0.55/0.94      inference('simplify', [status(thm)], [zip_derived_cl4156])).
% 0.55/0.94  
% 0.55/0.94  % SZS output end Refutation
% 0.55/0.94  
% 0.55/0.94  
% 0.55/0.94  % Terminating...
% 0.57/0.99  % Runner terminated.
% 0.57/1.00  % Zipperpin 1.5 exiting
%------------------------------------------------------------------------------