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Zipperpin---2.1.9999.UNS-Ref.s

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%------------------------------------------------------------------------------
% File     : Zipperpin---2.1.9999
% Problem  : GRP582-1 : TPTP v9.2.0. Released v2.6.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : python3 /export/starexec/sandbox/solver/bin/portfolio.lams.parallel.py %s %d /export/starexec/sandbox/tmp/tmp.HLvZ6HotEy true

% Computer : n022.cluster.edu
% Model    : x86_64 x86_64
% CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 2.10GHz
% Memory   : 8042.1875MB
% OS       : Linux 3.10.0-693.el7.x86_64
% CPULimit : 300s
% WCLimit  : 300s
% DateTime : Thu Oct  2 04:36:43 PM UTC 2025

% Result   : Unsatisfiable 1.21s 0.77s
% Output   : Refutation 1.21s
% Verified : 
% SZS Type : -

% Comments : 
%------------------------------------------------------------------------------
%----WARNING: Could not form TPTP format derivation
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.09/0.11  % Problem  : GRP582-1 : TPTP v9.2.0. Released v2.6.0.
% 0.09/0.12  % Command  : python3 /export/starexec/sandbox/solver/bin/portfolio.lams.parallel.py %s %d /export/starexec/sandbox/tmp/tmp.HLvZ6HotEy true
% 0.11/0.31  % Computer : n022.cluster.edu
% 0.11/0.31  % Model    : x86_64 x86_64
% 0.11/0.31  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.11/0.31  % Memory   : 8042.1875MB
% 0.11/0.31  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.11/0.31  % CPULimit : 300
% 0.11/0.31  % WCLimit  : 300
% 0.11/0.31  % DateTime : Wed Oct  1 14:06:23 EDT 2025
% 0.11/0.31  % CPUTime  : 
% 0.11/0.31  % Running portfolio for 300 s
% 0.11/0.31  % File         : /export/starexec/sandbox/benchmark/theBenchmark.p
% 0.11/0.32  % Number of cores: 8
% 0.11/0.32  % Python version: Python 3.6.8
% 0.16/0.32  % Running in FO mode
% 0.17/0.53  % Total configuration time : 435
% 0.17/0.53  % Estimated wc time : 1092
% 0.17/0.53  % Estimated cpu time (7 cpus) : 156.0
% 0.90/0.62  % /export/starexec/sandbox/solver/bin/fo/fo6_bce.sh running for 75s
% 1.06/0.65  % /export/starexec/sandbox/solver/bin/fo/fo3_bce.sh running for 75s
% 1.06/0.65  % /export/starexec/sandbox/solver/bin/fo/fo1_av.sh running for 75s
% 1.06/0.65  % /export/starexec/sandbox/solver/bin/fo/fo7.sh running for 63s
% 1.06/0.66  % /export/starexec/sandbox/solver/bin/fo/fo13.sh running for 50s
% 1.06/0.66  % /export/starexec/sandbox/solver/bin/fo/fo5.sh running for 50s
% 1.06/0.66  % /export/starexec/sandbox/solver/bin/fo/fo4.sh running for 50s
% 1.21/0.77  % Solved by fo/fo3_bce.sh.
% 1.21/0.77  % BCE start: 5
% 1.21/0.77  % BCE eliminated: 0
% 1.21/0.77  % PE start: 5
% 1.21/0.77  logic: eq
% 1.21/0.77  % PE eliminated: 0
% 1.21/0.77  % done 44 iterations in 0.092s
% 1.21/0.77  % SZS status Theorem for '/export/starexec/sandbox/benchmark/theBenchmark.p'
% 1.21/0.77  % SZS output start Refutation
% 1.21/0.77  thf(multiply_type, type, multiply: $i > $i > $i).
% 1.21/0.77  thf(identity_type, type, identity: $i).
% 1.21/0.77  thf(a2_type, type, a2: $i).
% 1.21/0.77  thf(double_divide_type, type, double_divide: $i > $i > $i).
% 1.21/0.77  thf(inverse_type, type, inverse: $i > $i).
% 1.21/0.77  thf(prove_these_axioms_2, conjecture,
% 1.21/0.77    (( multiply @ identity @ a2 ) = ( a2 ))).
% 1.21/0.77  thf(zf_stmt_0, negated_conjecture, (( multiply @ identity @ a2 ) != ( a2 )),
% 1.21/0.77    inference('cnf.neg', [status(esa)], [prove_these_axioms_2])).
% 1.21/0.77  thf(zip_derived_cl4, plain, (((multiply @ identity @ a2) != (a2))),
% 1.21/0.77      inference('cnf', [status(esa)], [zf_stmt_0])).
% 1.21/0.77  thf(multiply, axiom,
% 1.21/0.77    (( multiply @ A @ B ) =
% 1.21/0.77     ( double_divide @ ( double_divide @ B @ A ) @ identity ))).
% 1.21/0.77  thf(zip_derived_cl1, plain,
% 1.21/0.77      (![X0 : $i, X1 : $i]:
% 1.21/0.77         ((multiply @ X1 @ X0)
% 1.21/0.77           = (double_divide @ (double_divide @ X0 @ X1) @ identity))),
% 1.21/0.77      inference('cnf', [status(esa)], [multiply])).
% 1.21/0.77  thf(inverse, axiom, (( inverse @ A ) = ( double_divide @ A @ identity ))).
% 1.21/0.77  thf(zip_derived_cl2, plain,
% 1.21/0.77      (![X0 : $i]: ((inverse @ X0) = (double_divide @ X0 @ identity))),
% 1.21/0.77      inference('cnf', [status(esa)], [inverse])).
% 1.21/0.77  thf(zip_derived_cl5, plain,
% 1.21/0.77      (![X0 : $i, X1 : $i]:
% 1.21/0.77         ((multiply @ X1 @ X0) = (inverse @ (double_divide @ X0 @ X1)))),
% 1.21/0.77      inference('demod', [status(thm)], [zip_derived_cl1, zip_derived_cl2])).
% 1.21/0.77  thf(zip_derived_cl2, plain,
% 1.21/0.77      (![X0 : $i]: ((inverse @ X0) = (double_divide @ X0 @ identity))),
% 1.21/0.77      inference('cnf', [status(esa)], [inverse])).
% 1.21/0.77  thf(zip_derived_cl6, plain, (((inverse @ (inverse @ a2)) != (a2))),
% 1.21/0.77      inference('demod', [status(thm)],
% 1.21/0.77                [zip_derived_cl4, zip_derived_cl5, zip_derived_cl2])).
% 1.21/0.77  thf(zip_derived_cl2, plain,
% 1.21/0.77      (![X0 : $i]: ((inverse @ X0) = (double_divide @ X0 @ identity))),
% 1.21/0.77      inference('cnf', [status(esa)], [inverse])).
% 1.21/0.77  thf(identity, axiom,
% 1.21/0.77    (( identity ) = ( double_divide @ A @ ( inverse @ A ) ))).
% 1.21/0.77  thf(zip_derived_cl3, plain,
% 1.21/0.77      (![X0 : $i]: ((identity) = (double_divide @ X0 @ (inverse @ X0)))),
% 1.21/0.77      inference('cnf', [status(esa)], [identity])).
% 1.21/0.77  thf(single_axiom, axiom,
% 1.21/0.77    (( double_divide @
% 1.21/0.77       ( double_divide @
% 1.21/0.77         A @ 
% 1.21/0.77         ( double_divide @
% 1.21/0.77           ( double_divide @ identity @ B ) @ 
% 1.21/0.77           ( double_divide @ C @ ( double_divide @ B @ A ) ) ) ) @ 
% 1.21/0.77       ( double_divide @ identity @ identity ) ) =
% 1.21/0.77     ( C ))).
% 1.21/0.77  thf(zip_derived_cl0, plain,
% 1.21/0.77      (![X0 : $i, X1 : $i, X2 : $i]:
% 1.21/0.77         ((double_divide @ 
% 1.21/0.77           (double_divide @ X1 @ 
% 1.21/0.77            (double_divide @ (double_divide @ identity @ X2) @ 
% 1.21/0.77             (double_divide @ X0 @ (double_divide @ X2 @ X1)))) @ 
% 1.21/0.77           (double_divide @ identity @ identity)) = (X0))),
% 1.21/0.77      inference('cnf', [status(esa)], [single_axiom])).
% 1.21/0.77  thf(zip_derived_cl2, plain,
% 1.21/0.77      (![X0 : $i]: ((inverse @ X0) = (double_divide @ X0 @ identity))),
% 1.21/0.77      inference('cnf', [status(esa)], [inverse])).
% 1.21/0.77  thf(zip_derived_cl7, plain,
% 1.21/0.77      (![X0 : $i, X1 : $i, X2 : $i]:
% 1.21/0.77         ((double_divide @ 
% 1.21/0.77           (double_divide @ X1 @ 
% 1.21/0.77            (double_divide @ (double_divide @ identity @ X2) @ 
% 1.21/0.77             (double_divide @ X0 @ (double_divide @ X2 @ X1)))) @ 
% 1.21/0.77           (inverse @ identity)) = (X0))),
% 1.21/0.77      inference('demod', [status(thm)], [zip_derived_cl0, zip_derived_cl2])).
% 1.21/0.77  thf(zip_derived_cl10, plain,
% 1.21/0.77      (![X0 : $i, X1 : $i]:
% 1.21/0.77         ((double_divide @ 
% 1.21/0.77           (double_divide @ (inverse @ X1) @ 
% 1.21/0.77            (double_divide @ (double_divide @ identity @ X1) @ 
% 1.21/0.77             (double_divide @ X0 @ identity))) @ 
% 1.21/0.77           (inverse @ identity)) = (X0))),
% 1.21/0.77      inference('sup+', [status(thm)], [zip_derived_cl3, zip_derived_cl7])).
% 1.21/0.77  thf(zip_derived_cl2, plain,
% 1.21/0.77      (![X0 : $i]: ((inverse @ X0) = (double_divide @ X0 @ identity))),
% 1.21/0.77      inference('cnf', [status(esa)], [inverse])).
% 1.21/0.77  thf(zip_derived_cl14, plain,
% 1.21/0.77      (![X0 : $i, X1 : $i]:
% 1.21/0.77         ((double_divide @ 
% 1.21/0.77           (double_divide @ (inverse @ X1) @ 
% 1.21/0.77            (double_divide @ (double_divide @ identity @ X1) @ (inverse @ X0))) @ 
% 1.21/0.77           (inverse @ identity)) = (X0))),
% 1.21/0.77      inference('demod', [status(thm)], [zip_derived_cl10, zip_derived_cl2])).
% 1.21/0.77  thf(zip_derived_cl18, plain,
% 1.21/0.77      (![X0 : $i]:
% 1.21/0.77         ((double_divide @ 
% 1.21/0.77           (double_divide @ (inverse @ identity) @ 
% 1.21/0.77            (double_divide @ (inverse @ identity) @ (inverse @ X0))) @ 
% 1.21/0.77           (inverse @ identity)) = (X0))),
% 1.21/0.77      inference('sup+', [status(thm)], [zip_derived_cl2, zip_derived_cl14])).
% 1.21/0.77  thf(zip_derived_cl3, plain,
% 1.21/0.77      (![X0 : $i]: ((identity) = (double_divide @ X0 @ (inverse @ X0)))),
% 1.21/0.77      inference('cnf', [status(esa)], [identity])).
% 1.21/0.77  thf(zip_derived_cl3, plain,
% 1.21/0.77      (![X0 : $i]: ((identity) = (double_divide @ X0 @ (inverse @ X0)))),
% 1.21/0.77      inference('cnf', [status(esa)], [identity])).
% 1.21/0.77  thf(zip_derived_cl2, plain,
% 1.21/0.77      (![X0 : $i]: ((inverse @ X0) = (double_divide @ X0 @ identity))),
% 1.21/0.77      inference('cnf', [status(esa)], [inverse])).
% 1.21/0.77  thf(zip_derived_cl7, plain,
% 1.21/0.77      (![X0 : $i, X1 : $i, X2 : $i]:
% 1.21/0.77         ((double_divide @ 
% 1.21/0.77           (double_divide @ X1 @ 
% 1.21/0.77            (double_divide @ (double_divide @ identity @ X2) @ 
% 1.21/0.77             (double_divide @ X0 @ (double_divide @ X2 @ X1)))) @ 
% 1.21/0.77           (inverse @ identity)) = (X0))),
% 1.21/0.77      inference('demod', [status(thm)], [zip_derived_cl0, zip_derived_cl2])).
% 1.21/0.77  thf(zip_derived_cl9, plain,
% 1.21/0.77      (![X0 : $i, X1 : $i]:
% 1.21/0.77         ((double_divide @ 
% 1.21/0.77           (double_divide @ identity @ 
% 1.21/0.77            (double_divide @ (double_divide @ identity @ X0) @ 
% 1.21/0.77             (double_divide @ X1 @ (inverse @ X0)))) @ 
% 1.21/0.77           (inverse @ identity)) = (X1))),
% 1.21/0.77      inference('sup+', [status(thm)], [zip_derived_cl2, zip_derived_cl7])).
% 1.21/0.77  thf(zip_derived_cl32, plain,
% 1.21/0.77      (![X0 : $i]:
% 1.21/0.77         ((double_divide @ 
% 1.21/0.77           (double_divide @ identity @ 
% 1.21/0.77            (double_divide @ (double_divide @ identity @ X0) @ identity)) @ 
% 1.21/0.77           (inverse @ identity)) = (X0))),
% 1.21/0.77      inference('sup+', [status(thm)], [zip_derived_cl3, zip_derived_cl9])).
% 1.21/0.77  thf(zip_derived_cl2, plain,
% 1.21/0.77      (![X0 : $i]: ((inverse @ X0) = (double_divide @ X0 @ identity))),
% 1.21/0.77      inference('cnf', [status(esa)], [inverse])).
% 1.21/0.77  thf(zip_derived_cl41, plain,
% 1.21/0.77      (![X0 : $i]:
% 1.21/0.77         ((double_divide @ 
% 1.21/0.77           (double_divide @ identity @ 
% 1.21/0.77            (inverse @ (double_divide @ identity @ X0))) @ 
% 1.21/0.77           (inverse @ identity)) = (X0))),
% 1.21/0.77      inference('demod', [status(thm)], [zip_derived_cl32, zip_derived_cl2])).
% 1.21/0.77  thf(zip_derived_cl53, plain,
% 1.21/0.77      (((double_divide @ (double_divide @ identity @ (inverse @ identity)) @ 
% 1.21/0.77         (inverse @ identity)) = (inverse @ identity))),
% 1.21/0.77      inference('sup+', [status(thm)], [zip_derived_cl3, zip_derived_cl41])).
% 1.21/0.77  thf(zip_derived_cl3, plain,
% 1.21/0.77      (![X0 : $i]: ((identity) = (double_divide @ X0 @ (inverse @ X0)))),
% 1.21/0.77      inference('cnf', [status(esa)], [identity])).
% 1.21/0.77  thf(zip_derived_cl3, plain,
% 1.21/0.77      (![X0 : $i]: ((identity) = (double_divide @ X0 @ (inverse @ X0)))),
% 1.21/0.77      inference('cnf', [status(esa)], [identity])).
% 1.21/0.77  thf(zip_derived_cl54, plain, (((identity) = (inverse @ identity))),
% 1.21/0.77      inference('demod', [status(thm)],
% 1.21/0.77                [zip_derived_cl53, zip_derived_cl3, zip_derived_cl3])).
% 1.21/0.77  thf(zip_derived_cl54, plain, (((identity) = (inverse @ identity))),
% 1.21/0.77      inference('demod', [status(thm)],
% 1.21/0.77                [zip_derived_cl53, zip_derived_cl3, zip_derived_cl3])).
% 1.21/0.77  thf(zip_derived_cl54, plain, (((identity) = (inverse @ identity))),
% 1.21/0.77      inference('demod', [status(thm)],
% 1.21/0.77                [zip_derived_cl53, zip_derived_cl3, zip_derived_cl3])).
% 1.21/0.77  thf(zip_derived_cl2, plain,
% 1.21/0.77      (![X0 : $i]: ((inverse @ X0) = (double_divide @ X0 @ identity))),
% 1.21/0.77      inference('cnf', [status(esa)], [inverse])).
% 1.21/0.77  thf(zip_derived_cl59, plain,
% 1.21/0.77      (![X0 : $i]:
% 1.21/0.77         ((inverse @ 
% 1.21/0.77           (double_divide @ identity @ 
% 1.21/0.77            (double_divide @ identity @ (inverse @ X0))))
% 1.21/0.77           = (X0))),
% 1.21/0.77      inference('demod', [status(thm)],
% 1.21/0.77                [zip_derived_cl18, zip_derived_cl54, zip_derived_cl54, 
% 1.21/0.77                 zip_derived_cl54, zip_derived_cl2])).
% 1.21/0.77  thf(zip_derived_cl3, plain,
% 1.21/0.77      (![X0 : $i]: ((identity) = (double_divide @ X0 @ (inverse @ X0)))),
% 1.21/0.77      inference('cnf', [status(esa)], [identity])).
% 1.21/0.77  thf(zip_derived_cl14, plain,
% 1.21/0.77      (![X0 : $i, X1 : $i]:
% 1.21/0.77         ((double_divide @ 
% 1.21/0.77           (double_divide @ (inverse @ X1) @ 
% 1.21/0.77            (double_divide @ (double_divide @ identity @ X1) @ (inverse @ X0))) @ 
% 1.21/0.77           (inverse @ identity)) = (X0))),
% 1.21/0.77      inference('demod', [status(thm)], [zip_derived_cl10, zip_derived_cl2])).
% 1.21/0.77  thf(zip_derived_cl16, plain,
% 1.21/0.77      (![X0 : $i]:
% 1.21/0.77         ((double_divide @ (double_divide @ (inverse @ X0) @ identity) @ 
% 1.21/0.77           (inverse @ identity)) = (double_divide @ identity @ X0))),
% 1.21/0.77      inference('sup+', [status(thm)], [zip_derived_cl3, zip_derived_cl14])).
% 1.21/0.77  thf(zip_derived_cl2, plain,
% 1.21/0.77      (![X0 : $i]: ((inverse @ X0) = (double_divide @ X0 @ identity))),
% 1.21/0.77      inference('cnf', [status(esa)], [inverse])).
% 1.21/0.77  thf(zip_derived_cl20, plain,
% 1.21/0.77      (![X0 : $i]:
% 1.21/0.77         ((double_divide @ (inverse @ (inverse @ X0)) @ (inverse @ identity))
% 1.21/0.77           = (double_divide @ identity @ X0))),
% 1.21/0.77      inference('demod', [status(thm)], [zip_derived_cl16, zip_derived_cl2])).
% 1.21/0.77  thf(zip_derived_cl54, plain, (((identity) = (inverse @ identity))),
% 1.21/0.77      inference('demod', [status(thm)],
% 1.21/0.77                [zip_derived_cl53, zip_derived_cl3, zip_derived_cl3])).
% 1.21/0.77  thf(zip_derived_cl2, plain,
% 1.21/0.77      (![X0 : $i]: ((inverse @ X0) = (double_divide @ X0 @ identity))),
% 1.21/0.77      inference('cnf', [status(esa)], [inverse])).
% 1.21/0.77  thf(zip_derived_cl61, plain,
% 1.21/0.77      (![X0 : $i]:
% 1.21/0.77         ((inverse @ (inverse @ (inverse @ X0)))
% 1.21/0.77           = (double_divide @ identity @ X0))),
% 1.21/0.77      inference('demod', [status(thm)],
% 1.21/0.77                [zip_derived_cl20, zip_derived_cl54, zip_derived_cl2])).
% 1.21/0.77  thf(zip_derived_cl61, plain,
% 1.21/0.77      (![X0 : $i]:
% 1.21/0.77         ((inverse @ (inverse @ (inverse @ X0)))
% 1.21/0.77           = (double_divide @ identity @ X0))),
% 1.21/0.77      inference('demod', [status(thm)],
% 1.21/0.77                [zip_derived_cl20, zip_derived_cl54, zip_derived_cl2])).
% 1.21/0.77  thf(zip_derived_cl91, plain,
% 1.21/0.77      (![X0 : $i]:
% 1.21/0.77         ((inverse @ 
% 1.21/0.77           (inverse @ 
% 1.21/0.77            (inverse @ 
% 1.21/0.77             (inverse @ (inverse @ (inverse @ (inverse @ (inverse @ X0))))))))
% 1.21/0.77           = (X0))),
% 1.21/0.77      inference('demod', [status(thm)],
% 1.21/0.77                [zip_derived_cl59, zip_derived_cl61, zip_derived_cl61])).
% 1.21/0.77  thf(zip_derived_cl61, plain,
% 1.21/0.77      (![X0 : $i]:
% 1.21/0.77         ((inverse @ (inverse @ (inverse @ X0)))
% 1.21/0.77           = (double_divide @ identity @ X0))),
% 1.21/0.77      inference('demod', [status(thm)],
% 1.21/0.77                [zip_derived_cl20, zip_derived_cl54, zip_derived_cl2])).
% 1.21/0.77  thf(zip_derived_cl3, plain,
% 1.21/0.77      (![X0 : $i]: ((identity) = (double_divide @ X0 @ (inverse @ X0)))),
% 1.21/0.77      inference('cnf', [status(esa)], [identity])).
% 1.21/0.77  thf(zip_derived_cl7, plain,
% 1.21/0.77      (![X0 : $i, X1 : $i, X2 : $i]:
% 1.21/0.77         ((double_divide @ 
% 1.21/0.77           (double_divide @ X1 @ 
% 1.21/0.77            (double_divide @ (double_divide @ identity @ X2) @ 
% 1.21/0.77             (double_divide @ X0 @ (double_divide @ X2 @ X1)))) @ 
% 1.21/0.77           (inverse @ identity)) = (X0))),
% 1.21/0.77      inference('demod', [status(thm)], [zip_derived_cl0, zip_derived_cl2])).
% 1.21/0.77  thf(zip_derived_cl14, plain,
% 1.21/0.77      (![X0 : $i, X1 : $i]:
% 1.21/0.77         ((double_divide @ 
% 1.21/0.77           (double_divide @ (inverse @ X1) @ 
% 1.21/0.77            (double_divide @ (double_divide @ identity @ X1) @ (inverse @ X0))) @ 
% 1.21/0.77           (inverse @ identity)) = (X0))),
% 1.21/0.77      inference('demod', [status(thm)], [zip_derived_cl10, zip_derived_cl2])).
% 1.21/0.77  thf(zip_derived_cl17, plain,
% 1.21/0.77      (![X0 : $i, X1 : $i]:
% 1.21/0.77         ((double_divide @ 
% 1.21/0.77           (double_divide @ 
% 1.21/0.77            (inverse @ 
% 1.21/0.77             (double_divide @ (double_divide @ identity @ X1) @ 
% 1.21/0.77              (double_divide @ X0 @ (double_divide @ X1 @ identity)))) @ 
% 1.21/0.77            X0) @ 
% 1.21/0.77           (inverse @ identity)) = (identity))),
% 1.21/0.77      inference('sup+', [status(thm)], [zip_derived_cl7, zip_derived_cl14])).
% 1.21/0.77  thf(zip_derived_cl2, plain,
% 1.21/0.77      (![X0 : $i]: ((inverse @ X0) = (double_divide @ X0 @ identity))),
% 1.21/0.77      inference('cnf', [status(esa)], [inverse])).
% 1.21/0.77  thf(zip_derived_cl21, plain,
% 1.21/0.77      (![X0 : $i, X1 : $i]:
% 1.21/0.77         ((double_divide @ 
% 1.21/0.77           (double_divide @ 
% 1.21/0.77            (inverse @ 
% 1.21/0.77             (double_divide @ (double_divide @ identity @ X1) @ 
% 1.21/0.77              (double_divide @ X0 @ (inverse @ X1)))) @ 
% 1.21/0.77            X0) @ 
% 1.21/0.77           (inverse @ identity)) = (identity))),
% 1.21/0.77      inference('demod', [status(thm)], [zip_derived_cl17, zip_derived_cl2])).
% 1.21/0.77  thf(zip_derived_cl61, plain,
% 1.21/0.77      (![X0 : $i]:
% 1.21/0.77         ((inverse @ (inverse @ (inverse @ X0)))
% 1.21/0.77           = (double_divide @ identity @ X0))),
% 1.21/0.77      inference('demod', [status(thm)],
% 1.21/0.77                [zip_derived_cl20, zip_derived_cl54, zip_derived_cl2])).
% 1.21/0.77  thf(zip_derived_cl54, plain, (((identity) = (inverse @ identity))),
% 1.21/0.77      inference('demod', [status(thm)],
% 1.21/0.77                [zip_derived_cl53, zip_derived_cl3, zip_derived_cl3])).
% 1.21/0.77  thf(zip_derived_cl2, plain,
% 1.21/0.77      (![X0 : $i]: ((inverse @ X0) = (double_divide @ X0 @ identity))),
% 1.21/0.77      inference('cnf', [status(esa)], [inverse])).
% 1.21/0.77  thf(zip_derived_cl71, plain,
% 1.21/0.77      (![X0 : $i, X1 : $i]:
% 1.21/0.77         ((inverse @ 
% 1.21/0.77           (double_divide @ 
% 1.21/0.77            (inverse @ 
% 1.21/0.77             (double_divide @ (inverse @ (inverse @ (inverse @ X1))) @ 
% 1.21/0.77              (double_divide @ X0 @ (inverse @ X1)))) @ 
% 1.21/0.77            X0))
% 1.21/0.77           = (identity))),
% 1.21/0.77      inference('demod', [status(thm)],
% 1.21/0.77                [zip_derived_cl21, zip_derived_cl61, zip_derived_cl54, 
% 1.21/0.77                 zip_derived_cl2])).
% 1.21/0.77  thf(zip_derived_cl76, plain,
% 1.21/0.77      (![X0 : $i]:
% 1.21/0.77         ((inverse @ 
% 1.21/0.77           (double_divide @ 
% 1.21/0.77            (inverse @ 
% 1.21/0.77             (double_divide @ (inverse @ (inverse @ (inverse @ X0))) @ identity)) @ 
% 1.21/0.77            X0))
% 1.21/0.77           = (identity))),
% 1.21/0.77      inference('sup+', [status(thm)], [zip_derived_cl3, zip_derived_cl71])).
% 1.21/0.77  thf(zip_derived_cl2, plain,
% 1.21/0.77      (![X0 : $i]: ((inverse @ X0) = (double_divide @ X0 @ identity))),
% 1.21/0.77      inference('cnf', [status(esa)], [inverse])).
% 1.21/0.77  thf(zip_derived_cl83, plain,
% 1.21/0.77      (![X0 : $i]:
% 1.21/0.77         ((inverse @ 
% 1.21/0.77           (double_divide @ 
% 1.21/0.77            (inverse @ (inverse @ (inverse @ (inverse @ (inverse @ X0))))) @ X0))
% 1.21/0.77           = (identity))),
% 1.21/0.77      inference('demod', [status(thm)], [zip_derived_cl76, zip_derived_cl2])).
% 1.21/0.77  thf(zip_derived_cl91, plain,
% 1.21/0.77      (![X0 : $i]:
% 1.21/0.77         ((inverse @ 
% 1.21/0.77           (inverse @ 
% 1.21/0.77            (inverse @ 
% 1.21/0.77             (inverse @ (inverse @ (inverse @ (inverse @ (inverse @ X0))))))))
% 1.21/0.77           = (X0))),
% 1.21/0.77      inference('demod', [status(thm)],
% 1.21/0.77                [zip_derived_cl59, zip_derived_cl61, zip_derived_cl61])).
% 1.21/0.77  thf(zip_derived_cl121, plain,
% 1.21/0.77      (![X0 : $i]:
% 1.21/0.77         ((inverse @ 
% 1.21/0.77           (inverse @ 
% 1.21/0.77            (inverse @ (inverse @ (inverse @ (inverse @ (inverse @ identity)))))))
% 1.21/0.77           = (double_divide @ 
% 1.21/0.77              (inverse @ (inverse @ (inverse @ (inverse @ (inverse @ X0))))) @ 
% 1.21/0.77              X0))),
% 1.21/0.77      inference('sup+', [status(thm)], [zip_derived_cl83, zip_derived_cl91])).
% 1.21/0.77  thf(zip_derived_cl54, plain, (((identity) = (inverse @ identity))),
% 1.21/0.77      inference('demod', [status(thm)],
% 1.21/0.77                [zip_derived_cl53, zip_derived_cl3, zip_derived_cl3])).
% 1.21/0.77  thf(zip_derived_cl54, plain, (((identity) = (inverse @ identity))),
% 1.21/0.77      inference('demod', [status(thm)],
% 1.21/0.77                [zip_derived_cl53, zip_derived_cl3, zip_derived_cl3])).
% 1.21/0.77  thf(zip_derived_cl54, plain, (((identity) = (inverse @ identity))),
% 1.21/0.77      inference('demod', [status(thm)],
% 1.21/0.77                [zip_derived_cl53, zip_derived_cl3, zip_derived_cl3])).
% 1.21/0.77  thf(zip_derived_cl54, plain, (((identity) = (inverse @ identity))),
% 1.21/0.77      inference('demod', [status(thm)],
% 1.21/0.77                [zip_derived_cl53, zip_derived_cl3, zip_derived_cl3])).
% 1.21/0.77  thf(zip_derived_cl54, plain, (((identity) = (inverse @ identity))),
% 1.21/0.77      inference('demod', [status(thm)],
% 1.21/0.77                [zip_derived_cl53, zip_derived_cl3, zip_derived_cl3])).
% 1.21/0.77  thf(zip_derived_cl54, plain, (((identity) = (inverse @ identity))),
% 1.21/0.77      inference('demod', [status(thm)],
% 1.21/0.77                [zip_derived_cl53, zip_derived_cl3, zip_derived_cl3])).
% 1.21/0.77  thf(zip_derived_cl54, plain, (((identity) = (inverse @ identity))),
% 1.21/0.77      inference('demod', [status(thm)],
% 1.21/0.77                [zip_derived_cl53, zip_derived_cl3, zip_derived_cl3])).
% 1.21/0.77  thf(zip_derived_cl138, plain,
% 1.21/0.77      (![X0 : $i]:
% 1.21/0.77         ((identity)
% 1.21/0.77           = (double_divide @ 
% 1.21/0.77              (inverse @ (inverse @ (inverse @ (inverse @ (inverse @ X0))))) @ 
% 1.21/0.77              X0))),
% 1.21/0.77      inference('demod', [status(thm)],
% 1.21/0.77                [zip_derived_cl121, zip_derived_cl54, zip_derived_cl54, 
% 1.21/0.77                 zip_derived_cl54, zip_derived_cl54, zip_derived_cl54, 
% 1.21/0.77                 zip_derived_cl54, zip_derived_cl54])).
% 1.21/0.77  thf(zip_derived_cl7, plain,
% 1.21/0.77      (![X0 : $i, X1 : $i, X2 : $i]:
% 1.21/0.77         ((double_divide @ 
% 1.21/0.77           (double_divide @ X1 @ 
% 1.21/0.77            (double_divide @ (double_divide @ identity @ X2) @ 
% 1.21/0.77             (double_divide @ X0 @ (double_divide @ X2 @ X1)))) @ 
% 1.21/0.77           (inverse @ identity)) = (X0))),
% 1.21/0.77      inference('demod', [status(thm)], [zip_derived_cl0, zip_derived_cl2])).
% 1.21/0.77  thf(zip_derived_cl9, plain,
% 1.21/0.77      (![X0 : $i, X1 : $i]:
% 1.21/0.77         ((double_divide @ 
% 1.21/0.77           (double_divide @ identity @ 
% 1.21/0.77            (double_divide @ (double_divide @ identity @ X0) @ 
% 1.21/0.77             (double_divide @ X1 @ (inverse @ X0)))) @ 
% 1.21/0.77           (inverse @ identity)) = (X1))),
% 1.21/0.77      inference('sup+', [status(thm)], [zip_derived_cl2, zip_derived_cl7])).
% 1.21/0.77  thf(zip_derived_cl33, plain,
% 1.21/0.77      (![X0 : $i, X1 : $i, X2 : $i]:
% 1.21/0.77         ((double_divide @ 
% 1.21/0.77           (double_divide @ identity @ 
% 1.21/0.77            (double_divide @ (double_divide @ identity @ identity) @ X0)) @ 
% 1.21/0.77           (inverse @ identity))
% 1.21/0.77           = (double_divide @ X1 @ 
% 1.21/0.77              (double_divide @ (double_divide @ identity @ X2) @ 
% 1.21/0.77               (double_divide @ X0 @ (double_divide @ X2 @ X1)))))),
% 1.21/0.77      inference('sup+', [status(thm)], [zip_derived_cl7, zip_derived_cl9])).
% 1.21/0.77  thf(zip_derived_cl2, plain,
% 1.21/0.77      (![X0 : $i]: ((inverse @ X0) = (double_divide @ X0 @ identity))),
% 1.21/0.77      inference('cnf', [status(esa)], [inverse])).
% 1.21/0.77  thf(zip_derived_cl42, plain,
% 1.21/0.77      (![X0 : $i, X1 : $i, X2 : $i]:
% 1.21/0.77         ((double_divide @ 
% 1.21/0.77           (double_divide @ identity @ 
% 1.21/0.77            (double_divide @ (inverse @ identity) @ X0)) @ 
% 1.21/0.77           (inverse @ identity))
% 1.21/0.77           = (double_divide @ X1 @ 
% 1.21/0.77              (double_divide @ (double_divide @ identity @ X2) @ 
% 1.21/0.77               (double_divide @ X0 @ (double_divide @ X2 @ X1)))))),
% 1.21/0.77      inference('demod', [status(thm)], [zip_derived_cl33, zip_derived_cl2])).
% 1.21/0.77  thf(zip_derived_cl54, plain, (((identity) = (inverse @ identity))),
% 1.21/0.77      inference('demod', [status(thm)],
% 1.21/0.77                [zip_derived_cl53, zip_derived_cl3, zip_derived_cl3])).
% 1.21/0.77  thf(zip_derived_cl61, plain,
% 1.21/0.77      (![X0 : $i]:
% 1.21/0.77         ((inverse @ (inverse @ (inverse @ X0)))
% 1.21/0.77           = (double_divide @ identity @ X0))),
% 1.21/0.77      inference('demod', [status(thm)],
% 1.21/0.77                [zip_derived_cl20, zip_derived_cl54, zip_derived_cl2])).
% 1.21/0.77  thf(zip_derived_cl61, plain,
% 1.21/0.77      (![X0 : $i]:
% 1.21/0.77         ((inverse @ (inverse @ (inverse @ X0)))
% 1.21/0.77           = (double_divide @ identity @ X0))),
% 1.21/0.77      inference('demod', [status(thm)],
% 1.21/0.77                [zip_derived_cl20, zip_derived_cl54, zip_derived_cl2])).
% 1.21/0.77  thf(zip_derived_cl54, plain, (((identity) = (inverse @ identity))),
% 1.21/0.77      inference('demod', [status(thm)],
% 1.21/0.77                [zip_derived_cl53, zip_derived_cl3, zip_derived_cl3])).
% 1.21/0.77  thf(zip_derived_cl2, plain,
% 1.21/0.77      (![X0 : $i]: ((inverse @ X0) = (double_divide @ X0 @ identity))),
% 1.21/0.77      inference('cnf', [status(esa)], [inverse])).
% 1.21/0.77  thf(zip_derived_cl61, plain,
% 1.21/0.77      (![X0 : $i]:
% 1.21/0.77         ((inverse @ (inverse @ (inverse @ X0)))
% 1.21/0.77           = (double_divide @ identity @ X0))),
% 1.21/0.77      inference('demod', [status(thm)],
% 1.21/0.77                [zip_derived_cl20, zip_derived_cl54, zip_derived_cl2])).
% 1.21/0.77  thf(zip_derived_cl193, plain,
% 1.21/0.77      (![X0 : $i, X1 : $i, X2 : $i]:
% 1.21/0.77         ((inverse @ 
% 1.21/0.77           (inverse @ 
% 1.21/0.77            (inverse @ (inverse @ (inverse @ (inverse @ (inverse @ X0)))))))
% 1.21/0.77           = (double_divide @ X1 @ 
% 1.21/0.77              (double_divide @ (inverse @ (inverse @ (inverse @ X2))) @ 
% 1.21/0.77               (double_divide @ X0 @ (double_divide @ X2 @ X1)))))),
% 1.21/0.77      inference('demod', [status(thm)],
% 1.21/0.77                [zip_derived_cl42, zip_derived_cl54, zip_derived_cl61, 
% 1.21/0.77                 zip_derived_cl61, zip_derived_cl54, zip_derived_cl2, 
% 1.21/0.77                 zip_derived_cl61])).
% 1.21/0.77  thf(zip_derived_cl201, plain,
% 1.21/0.77      (![X0 : $i, X1 : $i]:
% 1.21/0.77         ((inverse @ 
% 1.21/0.77           (inverse @ 
% 1.21/0.77            (inverse @ 
% 1.21/0.77             (inverse @ 
% 1.21/0.77              (inverse @ 
% 1.21/0.77               (inverse @ 
% 1.21/0.77                (inverse @ 
% 1.21/0.77                 (inverse @ 
% 1.21/0.77                  (inverse @ 
% 1.21/0.77                   (inverse @ (inverse @ (inverse @ (double_divide @ X1 @ X0)))))))))))))
% 1.21/0.77           = (double_divide @ X0 @ 
% 1.21/0.77              (double_divide @ (inverse @ (inverse @ (inverse @ X1))) @ 
% 1.21/0.77               identity)))),
% 1.21/0.77      inference('sup+', [status(thm)], [zip_derived_cl138, zip_derived_cl193])).
% 1.21/0.77  thf(zip_derived_cl91, plain,
% 1.21/0.77      (![X0 : $i]:
% 1.21/0.77         ((inverse @ 
% 1.21/0.77           (inverse @ 
% 1.21/0.77            (inverse @ 
% 1.21/0.77             (inverse @ (inverse @ (inverse @ (inverse @ (inverse @ X0))))))))
% 1.21/0.77           = (X0))),
% 1.21/0.77      inference('demod', [status(thm)],
% 1.21/0.77                [zip_derived_cl59, zip_derived_cl61, zip_derived_cl61])).
% 1.21/0.77  thf(zip_derived_cl2, plain,
% 1.21/0.77      (![X0 : $i]: ((inverse @ X0) = (double_divide @ X0 @ identity))),
% 1.21/0.77      inference('cnf', [status(esa)], [inverse])).
% 1.21/0.77  thf(zip_derived_cl216, plain,
% 1.21/0.77      (![X0 : $i, X1 : $i]:
% 1.21/0.77         ((inverse @ 
% 1.21/0.77           (inverse @ (inverse @ (inverse @ (double_divide @ X1 @ X0)))))
% 1.21/0.77           = (double_divide @ X0 @ 
% 1.21/0.77              (inverse @ (inverse @ (inverse @ (inverse @ X1))))))),
% 1.21/0.77      inference('demod', [status(thm)],
% 1.21/0.77                [zip_derived_cl201, zip_derived_cl91, zip_derived_cl2])).
% 1.21/0.77  thf(zip_derived_cl91, plain,
% 1.21/0.77      (![X0 : $i]:
% 1.21/0.77         ((inverse @ 
% 1.21/0.77           (inverse @ 
% 1.21/0.77            (inverse @ 
% 1.21/0.77             (inverse @ (inverse @ (inverse @ (inverse @ (inverse @ X0))))))))
% 1.21/0.77           = (X0))),
% 1.21/0.77      inference('demod', [status(thm)],
% 1.21/0.77                [zip_derived_cl59, zip_derived_cl61, zip_derived_cl61])).
% 1.21/0.77  thf(zip_derived_cl261, plain,
% 1.21/0.77      (![X0 : $i, X1 : $i]:
% 1.21/0.77         ((inverse @ 
% 1.21/0.77           (inverse @ 
% 1.21/0.77            (inverse @ 
% 1.21/0.77             (inverse @ 
% 1.21/0.77              (double_divide @ X1 @ 
% 1.21/0.77               (inverse @ (inverse @ (inverse @ (inverse @ X0)))))))))
% 1.21/0.77           = (double_divide @ X0 @ X1))),
% 1.21/0.77      inference('sup+', [status(thm)], [zip_derived_cl216, zip_derived_cl91])).
% 1.21/0.77  thf(zip_derived_cl410, plain,
% 1.21/0.77      (![X0 : $i]:
% 1.21/0.77         ((inverse @ 
% 1.21/0.77           (inverse @ 
% 1.21/0.77            (inverse @ 
% 1.21/0.77             (inverse @ 
% 1.21/0.77              (inverse @ 
% 1.21/0.77               (inverse @ 
% 1.21/0.77                (inverse @ (inverse @ (inverse @ (inverse @ (inverse @ X0)))))))))))
% 1.21/0.77           = (double_divide @ X0 @ identity))),
% 1.21/0.77      inference('sup+', [status(thm)], [zip_derived_cl61, zip_derived_cl261])).
% 1.21/0.77  thf(zip_derived_cl91, plain,
% 1.21/0.77      (![X0 : $i]:
% 1.21/0.77         ((inverse @ 
% 1.21/0.77           (inverse @ 
% 1.21/0.77            (inverse @ 
% 1.21/0.77             (inverse @ (inverse @ (inverse @ (inverse @ (inverse @ X0))))))))
% 1.21/0.77           = (X0))),
% 1.21/0.77      inference('demod', [status(thm)],
% 1.21/0.77                [zip_derived_cl59, zip_derived_cl61, zip_derived_cl61])).
% 1.21/0.77  thf(zip_derived_cl2, plain,
% 1.21/0.77      (![X0 : $i]: ((inverse @ X0) = (double_divide @ X0 @ identity))),
% 1.21/0.77      inference('cnf', [status(esa)], [inverse])).
% 1.21/0.77  thf(zip_derived_cl430, plain,
% 1.21/0.77      (![X0 : $i]: ((inverse @ (inverse @ (inverse @ X0))) = (inverse @ X0))),
% 1.21/0.77      inference('demod', [status(thm)],
% 1.21/0.77                [zip_derived_cl410, zip_derived_cl91, zip_derived_cl2])).
% 1.21/0.77  thf(zip_derived_cl430, plain,
% 1.21/0.77      (![X0 : $i]: ((inverse @ (inverse @ (inverse @ X0))) = (inverse @ X0))),
% 1.21/0.77      inference('demod', [status(thm)],
% 1.21/0.77                [zip_derived_cl410, zip_derived_cl91, zip_derived_cl2])).
% 1.21/0.77  thf(zip_derived_cl430, plain,
% 1.21/0.77      (![X0 : $i]: ((inverse @ (inverse @ (inverse @ X0))) = (inverse @ X0))),
% 1.21/0.77      inference('demod', [status(thm)],
% 1.21/0.77                [zip_derived_cl410, zip_derived_cl91, zip_derived_cl2])).
% 1.21/0.77  thf(zip_derived_cl440, plain,
% 1.21/0.77      (![X0 : $i]: ((inverse @ (inverse @ X0)) = (X0))),
% 1.21/0.77      inference('demod', [status(thm)],
% 1.21/0.77                [zip_derived_cl91, zip_derived_cl430, zip_derived_cl430, 
% 1.21/0.77                 zip_derived_cl430])).
% 1.21/0.77  thf(zip_derived_cl456, plain, (((a2) != (a2))),
% 1.21/0.77      inference('demod', [status(thm)], [zip_derived_cl6, zip_derived_cl440])).
% 1.21/0.77  thf(zip_derived_cl457, plain, ($false),
% 1.21/0.77      inference('simplify', [status(thm)], [zip_derived_cl456])).
% 1.21/0.77  
% 1.21/0.77  % SZS output end Refutation
% 1.21/0.77  
% 1.21/0.77  
% 1.21/0.77  % Terminating...
% 1.33/0.85  % Runner terminated.
% 1.88/0.86  % Zipperpin 1.5 exiting
%------------------------------------------------------------------------------