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Zipperpin---2.1.9999.UNS-Ref.s

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%------------------------------------------------------------------------------
% File     : Zipperpin---2.1.9999
% Problem  : GRP053-1 : TPTP v9.2.0. Released v1.0.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : python3 /export/starexec/sandbox/solver/bin/portfolio.lams.parallel.py %s %d /export/starexec/sandbox/tmp/tmp.SXA8VNNBEa true

% Computer : n014.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 04:35:32 PM UTC 2025

% Result   : Unsatisfiable 16.97s 2.99s
% Output   : Refutation 16.97s
% Verified : 
% SZS Type : -

% Comments : 
%------------------------------------------------------------------------------
%----WARNING: Could not form TPTP format derivation
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.12  % Problem  : GRP053-1 : TPTP v9.2.0. Released v1.0.0.
% 0.12/0.13  % Command  : python3 /export/starexec/sandbox/solver/bin/portfolio.lams.parallel.py %s %d /export/starexec/sandbox/tmp/tmp.SXA8VNNBEa true
% 0.12/0.32  % Computer : n014.cluster.edu
% 0.12/0.32  % Model    : x86_64 x86_64
% 0.12/0.32  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.12/0.32  % Memory   : 8042.1875MB
% 0.12/0.32  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.12/0.33  % CPULimit : 300
% 0.12/0.33  % WCLimit  : 300
% 0.12/0.33  % DateTime : Wed Oct  1 14:16:38 EDT 2025
% 0.12/0.33  % CPUTime  : 
% 0.12/0.33  % Running portfolio for 300 s
% 0.12/0.33  % File         : /export/starexec/sandbox/benchmark/theBenchmark.p
% 0.12/0.33  % Number of cores: 8
% 0.12/0.33  % Python version: Python 3.6.8
% 0.12/0.33  % Running in FO mode
% 0.55/0.64  % Total configuration time : 435
% 0.55/0.64  % Estimated wc time : 1092
% 0.55/0.64  % Estimated cpu time (7 cpus) : 156.0
% 0.56/0.72  % /export/starexec/sandbox/solver/bin/fo/fo3_bce.sh running for 75s
% 0.56/0.72  % /export/starexec/sandbox/solver/bin/fo/fo6_bce.sh running for 75s
% 0.56/0.74  % /export/starexec/sandbox/solver/bin/fo/fo1_av.sh running for 75s
% 0.56/0.75  % /export/starexec/sandbox/solver/bin/fo/fo7.sh running for 63s
% 0.56/0.75  % /export/starexec/sandbox/solver/bin/fo/fo13.sh running for 50s
% 0.56/0.75  % /export/starexec/sandbox/solver/bin/fo/fo5.sh running for 50s
% 0.56/0.76  % /export/starexec/sandbox/solver/bin/fo/fo4.sh running for 50s
% 16.97/2.99  % Solved by fo/fo7.sh.
% 16.97/2.99  % done 469 iterations in 2.215s
% 16.97/2.99  % SZS status Theorem for '/export/starexec/sandbox/benchmark/theBenchmark.p'
% 16.97/2.99  % SZS output start Refutation
% 16.97/2.99  thf(b1_type, type, b1: $i).
% 16.97/2.99  thf(b3_type, type, b3: $i).
% 16.97/2.99  thf(b2_type, type, b2: $i).
% 16.97/2.99  thf(inverse_type, type, inverse: $i > $i).
% 16.97/2.99  thf(multiply_type, type, multiply: $i > $i > $i).
% 16.97/2.99  thf(a3_type, type, a3: $i).
% 16.97/2.99  thf(c3_type, type, c3: $i).
% 16.97/2.99  thf(a2_type, type, a2: $i).
% 16.97/2.99  thf(a1_type, type, a1: $i).
% 16.97/2.99  thf(single_axiom, axiom,
% 16.97/2.99    (( inverse @
% 16.97/2.99       ( multiply @
% 16.97/2.99         Y @ 
% 16.97/2.99         ( inverse @
% 16.97/2.99           ( multiply @
% 16.97/2.99             ( inverse @
% 16.97/2.99               ( multiply @
% 16.97/2.99                 ( inverse @ ( multiply @ Z @ Y ) ) @ 
% 16.97/2.99                 ( multiply @ Z @ ( inverse @ X ) ) ) ) @ 
% 16.97/2.99             ( inverse @ ( multiply @ ( inverse @ Y ) @ Y ) ) ) ) ) ) =
% 16.97/2.99     ( X ))).
% 16.97/2.99  thf(zip_derived_cl0, plain,
% 16.97/2.99      (![X0 : $i, X1 : $i, X2 : $i]:
% 16.97/2.99         ((inverse @ 
% 16.97/2.99           (multiply @ X1 @ 
% 16.97/2.99            (inverse @ 
% 16.97/2.99             (multiply @ 
% 16.97/2.99              (inverse @ 
% 16.97/2.99               (multiply @ (inverse @ (multiply @ X2 @ X1)) @ 
% 16.97/2.99                (multiply @ X2 @ (inverse @ X0)))) @ 
% 16.97/2.99              (inverse @ (multiply @ (inverse @ X1) @ X1))))))
% 16.97/2.99           = (X0))),
% 16.97/2.99      inference('cnf', [status(esa)], [single_axiom])).
% 16.97/2.99  thf(zip_derived_cl0, plain,
% 16.97/2.99      (![X0 : $i, X1 : $i, X2 : $i]:
% 16.97/2.99         ((inverse @ 
% 16.97/2.99           (multiply @ X1 @ 
% 16.97/2.99            (inverse @ 
% 16.97/2.99             (multiply @ 
% 16.97/2.99              (inverse @ 
% 16.97/2.99               (multiply @ (inverse @ (multiply @ X2 @ X1)) @ 
% 16.97/2.99                (multiply @ X2 @ (inverse @ X0)))) @ 
% 16.97/2.99              (inverse @ (multiply @ (inverse @ X1) @ X1))))))
% 16.97/2.99           = (X0))),
% 16.97/2.99      inference('cnf', [status(esa)], [single_axiom])).
% 16.97/2.99  thf(zip_derived_cl2, plain,
% 16.97/2.99      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i, X4 : $i]:
% 16.97/2.99         ((inverse @ 
% 16.97/2.99           (multiply @ X3 @ 
% 16.97/2.99            (inverse @ 
% 16.97/2.99             (multiply @ 
% 16.97/2.99              (inverse @ 
% 16.97/2.99               (multiply @ (inverse @ (multiply @ X4 @ X3)) @ 
% 16.97/2.99                (multiply @ X4 @ X0))) @ 
% 16.97/2.99              (inverse @ (multiply @ (inverse @ X3) @ X3))))))
% 16.97/2.99           = (multiply @ X1 @ 
% 16.97/2.99              (inverse @ 
% 16.97/2.99               (multiply @ 
% 16.97/2.99                (inverse @ 
% 16.97/2.99                 (multiply @ (inverse @ (multiply @ X2 @ X1)) @ 
% 16.97/2.99                  (multiply @ X2 @ (inverse @ X0)))) @ 
% 16.97/2.99                (inverse @ (multiply @ (inverse @ X1) @ X1))))))),
% 16.97/2.99      inference('sup+', [status(thm)], [zip_derived_cl0, zip_derived_cl0])).
% 16.97/2.99  thf(zip_derived_cl0, plain,
% 16.97/2.99      (![X0 : $i, X1 : $i, X2 : $i]:
% 16.97/2.99         ((inverse @ 
% 16.97/2.99           (multiply @ X1 @ 
% 16.97/2.99            (inverse @ 
% 16.97/2.99             (multiply @ 
% 16.97/2.99              (inverse @ 
% 16.97/2.99               (multiply @ (inverse @ (multiply @ X2 @ X1)) @ 
% 16.97/2.99                (multiply @ X2 @ (inverse @ X0)))) @ 
% 16.97/2.99              (inverse @ (multiply @ (inverse @ X1) @ X1))))))
% 16.97/2.99           = (X0))),
% 16.97/2.99      inference('cnf', [status(esa)], [single_axiom])).
% 16.97/2.99  thf(zip_derived_cl25, plain,
% 16.97/2.99      (![X0 : $i, X1 : $i, X2 : $i]:
% 16.97/2.99         ((multiply @ X0 @ 
% 16.97/2.99           (inverse @ 
% 16.97/2.99            (multiply @ 
% 16.97/2.99             (inverse @ 
% 16.97/2.99              (multiply @ (inverse @ (multiply @ X2 @ X0)) @ 
% 16.97/2.99               (multiply @ X2 @ (inverse @ (inverse @ X1))))) @ 
% 16.97/2.99             (inverse @ (multiply @ (inverse @ X0) @ X0)))))
% 16.97/2.99           = (X1))),
% 16.97/2.99      inference('sup+', [status(thm)], [zip_derived_cl2, zip_derived_cl0])).
% 16.97/2.99  thf(zip_derived_cl0, plain,
% 16.97/2.99      (![X0 : $i, X1 : $i, X2 : $i]:
% 16.97/2.99         ((inverse @ 
% 16.97/2.99           (multiply @ X1 @ 
% 16.97/2.99            (inverse @ 
% 16.97/2.99             (multiply @ 
% 16.97/2.99              (inverse @ 
% 16.97/2.99               (multiply @ (inverse @ (multiply @ X2 @ X1)) @ 
% 16.97/2.99                (multiply @ X2 @ (inverse @ X0)))) @ 
% 16.97/2.99              (inverse @ (multiply @ (inverse @ X1) @ X1))))))
% 16.97/2.99           = (X0))),
% 16.97/2.99      inference('cnf', [status(esa)], [single_axiom])).
% 16.97/2.99  thf(zip_derived_cl69, plain,
% 16.97/2.99      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i]:
% 16.97/2.99         ((inverse @ 
% 16.97/2.99           (multiply @ X3 @ 
% 16.97/2.99            (inverse @ 
% 16.97/2.99             (multiply @ 
% 16.97/2.99              (inverse @ (multiply @ (inverse @ (multiply @ X1 @ X3)) @ X0)) @ 
% 16.97/2.99              (inverse @ (multiply @ (inverse @ X3) @ X3))))))
% 16.97/2.99           = (multiply @ 
% 16.97/2.99              (inverse @ 
% 16.97/2.99               (multiply @ (inverse @ (multiply @ X2 @ X1)) @ 
% 16.97/2.99                (multiply @ X2 @ (inverse @ (inverse @ X0))))) @ 
% 16.97/2.99              (inverse @ (multiply @ (inverse @ X1) @ X1))))),
% 16.97/2.99      inference('sup+', [status(thm)], [zip_derived_cl25, zip_derived_cl0])).
% 16.97/2.99  thf(zip_derived_cl2, plain,
% 16.97/2.99      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i, X4 : $i]:
% 16.97/2.99         ((inverse @ 
% 16.97/2.99           (multiply @ X3 @ 
% 16.97/2.99            (inverse @ 
% 16.97/2.99             (multiply @ 
% 16.97/2.99              (inverse @ 
% 16.97/2.99               (multiply @ (inverse @ (multiply @ X4 @ X3)) @ 
% 16.97/2.99                (multiply @ X4 @ X0))) @ 
% 16.97/2.99              (inverse @ (multiply @ (inverse @ X3) @ X3))))))
% 16.97/2.99           = (multiply @ X1 @ 
% 16.97/2.99              (inverse @ 
% 16.97/2.99               (multiply @ 
% 16.97/2.99                (inverse @ 
% 16.97/2.99                 (multiply @ (inverse @ (multiply @ X2 @ X1)) @ 
% 16.97/2.99                  (multiply @ X2 @ (inverse @ X0)))) @ 
% 16.97/2.99                (inverse @ (multiply @ (inverse @ X1) @ X1))))))),
% 16.97/2.99      inference('sup+', [status(thm)], [zip_derived_cl0, zip_derived_cl0])).
% 16.97/2.99  thf(zip_derived_cl0, plain,
% 16.97/2.99      (![X0 : $i, X1 : $i, X2 : $i]:
% 16.97/2.99         ((inverse @ 
% 16.97/2.99           (multiply @ X1 @ 
% 16.97/2.99            (inverse @ 
% 16.97/2.99             (multiply @ 
% 16.97/2.99              (inverse @ 
% 16.97/2.99               (multiply @ (inverse @ (multiply @ X2 @ X1)) @ 
% 16.97/2.99                (multiply @ X2 @ (inverse @ X0)))) @ 
% 16.97/2.99              (inverse @ (multiply @ (inverse @ X1) @ X1))))))
% 16.97/2.99           = (X0))),
% 16.97/2.99      inference('cnf', [status(esa)], [single_axiom])).
% 16.97/2.99  thf(zip_derived_cl14, plain,
% 16.97/2.99      (![X0 : $i, X1 : $i, X2 : $i]:
% 16.97/2.99         ((inverse @ 
% 16.97/2.99           (inverse @ 
% 16.97/2.99            (multiply @ X0 @ 
% 16.97/2.99             (inverse @ 
% 16.97/2.99              (multiply @ 
% 16.97/2.99               (inverse @ 
% 16.97/2.99                (multiply @ (inverse @ (multiply @ X2 @ X0)) @ 
% 16.97/2.99                 (multiply @ X2 @ X1))) @ 
% 16.97/2.99               (inverse @ (multiply @ (inverse @ X0) @ X0)))))))
% 16.97/2.99           = (X1))),
% 16.97/2.99      inference('sup+', [status(thm)], [zip_derived_cl2, zip_derived_cl0])).
% 16.97/2.99  thf(zip_derived_cl126, plain,
% 16.97/2.99      (![X0 : $i, X1 : $i, X2 : $i]:
% 16.97/2.99         ((inverse @ 
% 16.97/2.99           (multiply @ 
% 16.97/2.99            (inverse @ 
% 16.97/2.99             (multiply @ (inverse @ (multiply @ X2 @ X0)) @ 
% 16.97/2.99              (multiply @ X2 @ (inverse @ (inverse @ (multiply @ X0 @ X1)))))) @ 
% 16.97/2.99            (inverse @ (multiply @ (inverse @ X0) @ X0))))
% 16.97/2.99           = (X1))),
% 16.97/2.99      inference('sup+', [status(thm)], [zip_derived_cl69, zip_derived_cl14])).
% 16.97/2.99  thf(zip_derived_cl69, plain,
% 16.97/2.99      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i]:
% 16.97/2.99         ((inverse @ 
% 16.97/2.99           (multiply @ X3 @ 
% 16.97/2.99            (inverse @ 
% 16.97/2.99             (multiply @ 
% 16.97/2.99              (inverse @ (multiply @ (inverse @ (multiply @ X1 @ X3)) @ X0)) @ 
% 16.97/2.99              (inverse @ (multiply @ (inverse @ X3) @ X3))))))
% 16.97/2.99           = (multiply @ 
% 16.97/2.99              (inverse @ 
% 16.97/2.99               (multiply @ (inverse @ (multiply @ X2 @ X1)) @ 
% 16.97/2.99                (multiply @ X2 @ (inverse @ (inverse @ X0))))) @ 
% 16.97/2.99              (inverse @ (multiply @ (inverse @ X1) @ X1))))),
% 16.97/2.99      inference('sup+', [status(thm)], [zip_derived_cl25, zip_derived_cl0])).
% 16.97/2.99  thf(zip_derived_cl0, plain,
% 16.97/2.99      (![X0 : $i, X1 : $i, X2 : $i]:
% 16.97/2.99         ((inverse @ 
% 16.97/2.99           (multiply @ X1 @ 
% 16.97/2.99            (inverse @ 
% 16.97/2.99             (multiply @ 
% 16.97/2.99              (inverse @ 
% 16.97/2.99               (multiply @ (inverse @ (multiply @ X2 @ X1)) @ 
% 16.97/2.99                (multiply @ X2 @ (inverse @ X0)))) @ 
% 16.97/2.99              (inverse @ (multiply @ (inverse @ X1) @ X1))))))
% 16.97/2.99           = (X0))),
% 16.97/2.99      inference('cnf', [status(esa)], [single_axiom])).
% 16.97/2.99  thf(zip_derived_cl124, plain,
% 16.97/2.99      (![X0 : $i, X1 : $i, X2 : $i]:
% 16.97/2.99         ((multiply @ 
% 16.97/2.99           (inverse @ 
% 16.97/2.99            (multiply @ (inverse @ (multiply @ X2 @ X0)) @ 
% 16.97/2.99             (multiply @ X2 @ 
% 16.97/2.99              (inverse @ (inverse @ (multiply @ X0 @ (inverse @ X1))))))) @ 
% 16.97/2.99           (inverse @ (multiply @ (inverse @ X0) @ X0))) = (X1))),
% 16.97/2.99      inference('sup+', [status(thm)], [zip_derived_cl69, zip_derived_cl0])).
% 16.97/2.99  thf(zip_derived_cl0, plain,
% 16.97/2.99      (![X0 : $i, X1 : $i, X2 : $i]:
% 16.97/2.99         ((inverse @ 
% 16.97/2.99           (multiply @ X1 @ 
% 16.97/2.99            (inverse @ 
% 16.97/2.99             (multiply @ 
% 16.97/2.99              (inverse @ 
% 16.97/2.99               (multiply @ (inverse @ (multiply @ X2 @ X1)) @ 
% 16.97/2.99                (multiply @ X2 @ (inverse @ X0)))) @ 
% 16.97/2.99              (inverse @ (multiply @ (inverse @ X1) @ X1))))))
% 16.97/2.99           = (X0))),
% 16.97/2.99      inference('cnf', [status(esa)], [single_axiom])).
% 16.97/2.99  thf(zip_derived_cl228, plain,
% 16.97/2.99      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i]:
% 16.97/2.99         ((inverse @ 
% 16.97/2.99           (multiply @ X2 @ 
% 16.97/2.99            (inverse @ 
% 16.97/2.99             (multiply @ 
% 16.97/2.99              (inverse @ 
% 16.97/2.99               (multiply @ 
% 16.97/2.99                (inverse @ 
% 16.97/2.99                 (multiply @ 
% 16.97/2.99                  (inverse @ 
% 16.97/2.99                   (multiply @ (inverse @ (multiply @ X3 @ X1)) @ 
% 16.97/2.99                    (multiply @ X3 @ 
% 16.97/2.99                     (inverse @ (inverse @ (multiply @ X1 @ (inverse @ X0))))))) @ 
% 16.97/2.99                  X2)) @ 
% 16.97/2.99                X0)) @ 
% 16.97/2.99              (inverse @ (multiply @ (inverse @ X2) @ X2))))))
% 16.97/2.99           = (multiply @ (inverse @ X1) @ X1))),
% 16.97/2.99      inference('sup+', [status(thm)], [zip_derived_cl124, zip_derived_cl0])).
% 16.97/2.99  thf(zip_derived_cl683, plain,
% 16.97/2.99      (![X0 : $i, X1 : $i]:
% 16.97/2.99         ((inverse @ 
% 16.97/2.99           (multiply @ (inverse @ (multiply @ (inverse @ X1) @ X1)) @ 
% 16.97/2.99            (inverse @ 
% 16.97/2.99             (multiply @ (inverse @ (multiply @ (inverse @ X0) @ X0)) @ 
% 16.97/2.99              (inverse @ 
% 16.97/2.99               (multiply @ 
% 16.97/2.99                (inverse @ (inverse @ (multiply @ (inverse @ X1) @ X1))) @ 
% 16.97/2.99                (inverse @ (multiply @ (inverse @ X1) @ X1))))))))
% 16.97/2.99           = (multiply @ (inverse @ X1) @ X1))),
% 16.97/2.99      inference('sup+', [status(thm)], [zip_derived_cl126, zip_derived_cl228])).
% 16.97/2.99  thf(zip_derived_cl69, plain,
% 16.97/2.99      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i]:
% 16.97/2.99         ((inverse @ 
% 16.97/2.99           (multiply @ X3 @ 
% 16.97/2.99            (inverse @ 
% 16.97/2.99             (multiply @ 
% 16.97/2.99              (inverse @ (multiply @ (inverse @ (multiply @ X1 @ X3)) @ X0)) @ 
% 16.97/2.99              (inverse @ (multiply @ (inverse @ X3) @ X3))))))
% 16.97/2.99           = (multiply @ 
% 16.97/2.99              (inverse @ 
% 16.97/2.99               (multiply @ (inverse @ (multiply @ X2 @ X1)) @ 
% 16.97/2.99                (multiply @ X2 @ (inverse @ (inverse @ X0))))) @ 
% 16.97/2.99              (inverse @ (multiply @ (inverse @ X1) @ X1))))),
% 16.97/2.99      inference('sup+', [status(thm)], [zip_derived_cl25, zip_derived_cl0])).
% 16.97/2.99  thf(zip_derived_cl25, plain,
% 16.97/2.99      (![X0 : $i, X1 : $i, X2 : $i]:
% 16.97/2.99         ((multiply @ X0 @ 
% 16.97/2.99           (inverse @ 
% 16.97/2.99            (multiply @ 
% 16.97/2.99             (inverse @ 
% 16.97/2.99              (multiply @ (inverse @ (multiply @ X2 @ X0)) @ 
% 16.97/2.99               (multiply @ X2 @ (inverse @ (inverse @ X1))))) @ 
% 16.97/2.99             (inverse @ (multiply @ (inverse @ X0) @ X0)))))
% 16.97/2.99           = (X1))),
% 16.97/2.99      inference('sup+', [status(thm)], [zip_derived_cl2, zip_derived_cl0])).
% 16.97/2.99  thf(zip_derived_cl103, plain,
% 16.97/2.99      (![X0 : $i, X1 : $i, X2 : $i]:
% 16.97/2.99         ((multiply @ X2 @ 
% 16.97/2.99           (inverse @ 
% 16.97/2.99            (inverse @ 
% 16.97/2.99             (multiply @ X0 @ 
% 16.97/2.99              (inverse @ 
% 16.97/2.99               (multiply @ 
% 16.97/2.99                (inverse @ (multiply @ (inverse @ (multiply @ X2 @ X0)) @ X1)) @ 
% 16.97/2.99                (inverse @ (multiply @ (inverse @ X0) @ X0))))))))
% 16.97/2.99           = (X1))),
% 16.97/2.99      inference('sup+', [status(thm)], [zip_derived_cl69, zip_derived_cl25])).
% 16.97/2.99  thf(zip_derived_cl788, plain,
% 16.97/2.99      (![X0 : $i, X1 : $i]:
% 16.97/2.99         ((multiply @ (inverse @ X0) @ 
% 16.97/2.99           (inverse @ 
% 16.97/2.99            (inverse @ 
% 16.97/2.99             (multiply @ X0 @ 
% 16.97/2.99              (inverse @ 
% 16.97/2.99               (multiply @ (multiply @ (inverse @ X0) @ X0) @ 
% 16.97/2.99                (inverse @ (multiply @ (inverse @ X0) @ X0))))))))
% 16.97/2.99           = (inverse @ 
% 16.97/2.99              (multiply @ (inverse @ (multiply @ (inverse @ X1) @ X1)) @ 
% 16.97/2.99               (inverse @ 
% 16.97/2.99                (multiply @ 
% 16.97/2.99                 (inverse @ (inverse @ (multiply @ (inverse @ X0) @ X0))) @ 
% 16.97/2.99                 (inverse @ (multiply @ (inverse @ X0) @ X0)))))))),
% 16.97/2.99      inference('sup+', [status(thm)], [zip_derived_cl683, zip_derived_cl103])).
% 16.97/2.99  thf(zip_derived_cl0, plain,
% 16.97/2.99      (![X0 : $i, X1 : $i, X2 : $i]:
% 16.97/2.99         ((inverse @ 
% 16.97/2.99           (multiply @ X1 @ 
% 16.97/2.99            (inverse @ 
% 16.97/2.99             (multiply @ 
% 16.97/2.99              (inverse @ 
% 16.97/2.99               (multiply @ (inverse @ (multiply @ X2 @ X1)) @ 
% 16.97/2.99                (multiply @ X2 @ (inverse @ X0)))) @ 
% 16.97/2.99              (inverse @ (multiply @ (inverse @ X1) @ X1))))))
% 16.97/2.99           = (X0))),
% 16.97/2.99      inference('cnf', [status(esa)], [single_axiom])).
% 16.97/2.99  thf(zip_derived_cl103, plain,
% 16.97/2.99      (![X0 : $i, X1 : $i, X2 : $i]:
% 16.97/2.99         ((multiply @ X2 @ 
% 16.97/2.99           (inverse @ 
% 16.97/2.99            (inverse @ 
% 16.97/2.99             (multiply @ X0 @ 
% 16.97/2.99              (inverse @ 
% 16.97/2.99               (multiply @ 
% 16.97/2.99                (inverse @ (multiply @ (inverse @ (multiply @ X2 @ X0)) @ X1)) @ 
% 16.97/2.99                (inverse @ (multiply @ (inverse @ X0) @ X0))))))))
% 16.97/2.99           = (X1))),
% 16.97/2.99      inference('sup+', [status(thm)], [zip_derived_cl69, zip_derived_cl25])).
% 16.97/2.99  thf(zip_derived_cl196, plain,
% 16.97/2.99      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i]:
% 16.97/2.99         ((multiply @ X2 @ 
% 16.97/2.99           (inverse @ 
% 16.97/2.99            (inverse @ 
% 16.97/2.99             (multiply @ X1 @ 
% 16.97/2.99              (inverse @ 
% 16.97/2.99               (multiply @ X0 @ (inverse @ (multiply @ (inverse @ X1) @ X1))))))))
% 16.97/2.99           = (inverse @ 
% 16.97/2.99              (multiply @ 
% 16.97/2.99               (inverse @ 
% 16.97/2.99                (multiply @ 
% 16.97/2.99                 (inverse @ (multiply @ X3 @ (inverse @ (multiply @ X2 @ X1)))) @ 
% 16.97/2.99                 (multiply @ X3 @ (inverse @ X0)))) @ 
% 16.97/2.99               (inverse @ 
% 16.97/2.99                (multiply @ (inverse @ (inverse @ (multiply @ X2 @ X1))) @ 
% 16.97/2.99                 (inverse @ (multiply @ X2 @ X1)))))))),
% 16.97/2.99      inference('sup+', [status(thm)], [zip_derived_cl0, zip_derived_cl103])).
% 16.97/2.99  thf(zip_derived_cl25, plain,
% 16.97/2.99      (![X0 : $i, X1 : $i, X2 : $i]:
% 16.97/2.99         ((multiply @ X0 @ 
% 16.97/2.99           (inverse @ 
% 16.97/2.99            (multiply @ 
% 16.97/2.99             (inverse @ 
% 16.97/2.99              (multiply @ (inverse @ (multiply @ X2 @ X0)) @ 
% 16.97/2.99               (multiply @ X2 @ (inverse @ (inverse @ X1))))) @ 
% 16.97/2.99             (inverse @ (multiply @ (inverse @ X0) @ X0)))))
% 16.97/2.99           = (X1))),
% 16.97/2.99      inference('sup+', [status(thm)], [zip_derived_cl2, zip_derived_cl0])).
% 16.97/2.99  thf(zip_derived_cl1121, plain,
% 16.97/2.99      (![X0 : $i, X1 : $i, X2 : $i]:
% 16.97/2.99         ((multiply @ (inverse @ (multiply @ X2 @ X0)) @ 
% 16.97/2.99           (multiply @ X2 @ 
% 16.97/2.99            (inverse @ 
% 16.97/2.99             (inverse @ 
% 16.97/2.99              (multiply @ X0 @ 
% 16.97/2.99               (inverse @ 
% 16.97/2.99                (multiply @ (inverse @ X1) @ 
% 16.97/2.99                 (inverse @ (multiply @ (inverse @ X0) @ X0)))))))))
% 16.97/2.99           = (X1))),
% 16.97/2.99      inference('sup+', [status(thm)], [zip_derived_cl196, zip_derived_cl25])).
% 16.97/2.99  thf(zip_derived_cl1668, plain,
% 16.97/2.99      (![X0 : $i, X1 : $i, X2 : $i]:
% 16.97/2.99         ((multiply @ 
% 16.97/2.99           (inverse @ 
% 16.97/2.99            (multiply @ X2 @ (inverse @ (multiply @ (inverse @ X0) @ X0)))) @ 
% 16.97/2.99           (multiply @ X2 @ 
% 16.97/2.99            (inverse @ 
% 16.97/2.99             (inverse @ 
% 16.97/2.99              (multiply @ (inverse @ (multiply @ (inverse @ X0) @ X0)) @ 
% 16.97/2.99               (multiply @ (inverse @ X0) @ 
% 16.97/2.99                (inverse @ 
% 16.97/2.99                 (inverse @ 
% 16.97/2.99                  (multiply @ X0 @ 
% 16.97/2.99                   (inverse @ 
% 16.97/2.99                    (multiply @ (multiply @ (inverse @ X0) @ X0) @ 
% 16.97/2.99                     (inverse @ (multiply @ (inverse @ X0) @ X0)))))))))))))
% 16.97/2.99           = (multiply @ (inverse @ X1) @ X1))),
% 16.97/2.99      inference('sup+', [status(thm)], [zip_derived_cl788, zip_derived_cl1121])).
% 16.97/2.99  thf(zip_derived_cl196, plain,
% 16.97/2.99      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i]:
% 16.97/2.99         ((multiply @ X2 @ 
% 16.97/2.99           (inverse @ 
% 16.97/2.99            (inverse @ 
% 16.97/2.99             (multiply @ X1 @ 
% 16.97/2.99              (inverse @ 
% 16.97/2.99               (multiply @ X0 @ (inverse @ (multiply @ (inverse @ X1) @ X1))))))))
% 16.97/2.99           = (inverse @ 
% 16.97/2.99              (multiply @ 
% 16.97/2.99               (inverse @ 
% 16.97/2.99                (multiply @ 
% 16.97/2.99                 (inverse @ (multiply @ X3 @ (inverse @ (multiply @ X2 @ X1)))) @ 
% 16.97/2.99                 (multiply @ X3 @ (inverse @ X0)))) @ 
% 16.97/2.99               (inverse @ 
% 16.97/2.99                (multiply @ (inverse @ (inverse @ (multiply @ X2 @ X1))) @ 
% 16.97/2.99                 (inverse @ (multiply @ X2 @ X1)))))))),
% 16.97/2.99      inference('sup+', [status(thm)], [zip_derived_cl0, zip_derived_cl103])).
% 16.97/2.99  thf(zip_derived_cl0, plain,
% 16.97/2.99      (![X0 : $i, X1 : $i, X2 : $i]:
% 16.97/2.99         ((inverse @ 
% 16.97/2.99           (multiply @ X1 @ 
% 16.97/2.99            (inverse @ 
% 16.97/2.99             (multiply @ 
% 16.97/2.99              (inverse @ 
% 16.97/2.99               (multiply @ (inverse @ (multiply @ X2 @ X1)) @ 
% 16.97/2.99                (multiply @ X2 @ (inverse @ X0)))) @ 
% 16.97/2.99              (inverse @ (multiply @ (inverse @ X1) @ X1))))))
% 16.97/2.99           = (X0))),
% 16.97/2.99      inference('cnf', [status(esa)], [single_axiom])).
% 16.97/2.99  thf(zip_derived_cl1118, plain,
% 16.97/2.99      (![X0 : $i, X1 : $i, X2 : $i]:
% 16.97/2.99         ((inverse @ 
% 16.97/2.99           (multiply @ (inverse @ (multiply @ X2 @ X0)) @ 
% 16.97/2.99            (multiply @ X2 @ 
% 16.97/2.99             (inverse @ 
% 16.97/2.99              (inverse @ 
% 16.97/2.99               (multiply @ X0 @ 
% 16.97/2.99                (inverse @ 
% 16.97/2.99                 (multiply @ X1 @ (inverse @ (multiply @ (inverse @ X0) @ X0))))))))))
% 16.97/2.99           = (X1))),
% 16.97/2.99      inference('sup+', [status(thm)], [zip_derived_cl196, zip_derived_cl0])).
% 16.97/2.99  thf(zip_derived_cl1716, plain,
% 16.97/2.99      (![X0 : $i, X1 : $i, X2 : $i]:
% 16.97/2.99         ((multiply @ 
% 16.97/2.99           (inverse @ 
% 16.97/2.99            (multiply @ X2 @ (inverse @ (multiply @ (inverse @ X0) @ X0)))) @ 
% 16.97/2.99           (multiply @ X2 @ (inverse @ (multiply @ (inverse @ X0) @ X0))))
% 16.97/2.99           = (multiply @ (inverse @ X1) @ X1))),
% 16.97/2.99      inference('demod', [status(thm)],
% 16.97/2.99                [zip_derived_cl1668, zip_derived_cl1118])).
% 16.97/2.99  thf(zip_derived_cl1716, plain,
% 16.97/2.99      (![X0 : $i, X1 : $i, X2 : $i]:
% 16.97/2.99         ((multiply @ 
% 16.97/2.99           (inverse @ 
% 16.97/2.99            (multiply @ X2 @ (inverse @ (multiply @ (inverse @ X0) @ X0)))) @ 
% 16.97/2.99           (multiply @ X2 @ (inverse @ (multiply @ (inverse @ X0) @ X0))))
% 16.97/2.99           = (multiply @ (inverse @ X1) @ X1))),
% 16.97/2.99      inference('demod', [status(thm)],
% 16.97/2.99                [zip_derived_cl1668, zip_derived_cl1118])).
% 16.97/2.99  thf(zip_derived_cl2056, plain,
% 16.97/2.99      (![X0 : $i, X1 : $i]:
% 16.97/2.99         ((multiply @ (inverse @ X0) @ X0) = (multiply @ (inverse @ X1) @ X1))),
% 16.97/2.99      inference('sup+', [status(thm)], [zip_derived_cl1716, zip_derived_cl1716])).
% 16.97/2.99  thf(prove_these_axioms, conjecture,
% 16.97/2.99    (~( ( ( multiply @ ( multiply @ a3 @ b3 ) @ c3 ) !=
% 16.97/2.99          ( multiply @ a3 @ ( multiply @ b3 @ c3 ) ) ) | 
% 16.97/2.99        ( ( multiply @ ( multiply @ ( inverse @ b2 ) @ b2 ) @ a2 ) != ( a2 ) ) | 
% 16.97/2.99        ( ( multiply @ ( inverse @ a1 ) @ a1 ) !=
% 16.97/2.99          ( multiply @ ( inverse @ b1 ) @ b1 ) ) ))).
% 16.97/2.99  thf(zf_stmt_0, negated_conjecture,
% 16.97/2.99    (( ( multiply @ ( multiply @ a3 @ b3 ) @ c3 ) !=
% 16.97/2.99       ( multiply @ a3 @ ( multiply @ b3 @ c3 ) ) ) | 
% 16.97/2.99     ( ( multiply @ ( multiply @ ( inverse @ b2 ) @ b2 ) @ a2 ) != ( a2 ) ) | 
% 16.97/2.99     ( ( multiply @ ( inverse @ a1 ) @ a1 ) !=
% 16.97/2.99       ( multiply @ ( inverse @ b1 ) @ b1 ) )),
% 16.97/2.99    inference('cnf.neg', [status(esa)], [prove_these_axioms])).
% 16.97/2.99  thf(zip_derived_cl1, plain,
% 16.97/2.99      ((((multiply @ (multiply @ a3 @ b3) @ c3)
% 16.97/2.99          != (multiply @ a3 @ (multiply @ b3 @ c3)))
% 16.97/2.99        | ((multiply @ (multiply @ (inverse @ b2) @ b2) @ a2) != (a2))
% 16.97/2.99        | ((multiply @ (inverse @ a1) @ a1) != (multiply @ (inverse @ b1) @ b1)))),
% 16.97/2.99      inference('cnf', [status(esa)], [zf_stmt_0])).
% 16.97/2.99  thf(zip_derived_cl2298, plain,
% 16.97/2.99      (![X0 : $i]:
% 16.97/2.99         (((multiply @ (multiply @ (inverse @ X0) @ X0) @ a2) != (a2))
% 16.97/2.99          | ((multiply @ (inverse @ a1) @ a1)
% 16.97/2.99              != (multiply @ (inverse @ b1) @ b1))
% 16.97/2.99          | ((multiply @ (multiply @ a3 @ b3) @ c3)
% 16.97/2.99              != (multiply @ a3 @ (multiply @ b3 @ c3))))),
% 16.97/2.99      inference('sup-', [status(thm)], [zip_derived_cl2056, zip_derived_cl1])).
% 16.97/2.99  thf(zip_derived_cl2056, plain,
% 16.97/2.99      (![X0 : $i, X1 : $i]:
% 16.97/2.99         ((multiply @ (inverse @ X0) @ X0) = (multiply @ (inverse @ X1) @ X1))),
% 16.97/2.99      inference('sup+', [status(thm)], [zip_derived_cl1716, zip_derived_cl1716])).
% 16.97/2.99  thf(zip_derived_cl2416, plain,
% 16.97/2.99      (![X0 : $i]:
% 16.97/2.99         (((multiply @ (multiply @ a3 @ b3) @ c3)
% 16.97/2.99            != (multiply @ a3 @ (multiply @ b3 @ c3)))
% 16.97/2.99          | ((multiply @ (multiply @ (inverse @ X0) @ X0) @ a2) != (a2)))),
% 16.97/2.99      inference('simplify_reflect+', [status(thm)],
% 16.97/2.99                [zip_derived_cl2298, zip_derived_cl2056])).
% 16.97/2.99  thf(zip_derived_cl2056, plain,
% 16.97/2.99      (![X0 : $i, X1 : $i]:
% 16.97/2.99         ((multiply @ (inverse @ X0) @ X0) = (multiply @ (inverse @ X1) @ X1))),
% 16.97/2.99      inference('sup+', [status(thm)], [zip_derived_cl1716, zip_derived_cl1716])).
% 16.97/2.99  thf(zip_derived_cl2056, plain,
% 16.97/2.99      (![X0 : $i, X1 : $i]:
% 16.97/2.99         ((multiply @ (inverse @ X0) @ X0) = (multiply @ (inverse @ X1) @ X1))),
% 16.97/2.99      inference('sup+', [status(thm)], [zip_derived_cl1716, zip_derived_cl1716])).
% 16.97/2.99  thf(zip_derived_cl0, plain,
% 16.97/2.99      (![X0 : $i, X1 : $i, X2 : $i]:
% 16.97/2.99         ((inverse @ 
% 16.97/2.99           (multiply @ X1 @ 
% 16.97/2.99            (inverse @ 
% 16.97/2.99             (multiply @ 
% 16.97/2.99              (inverse @ 
% 16.97/2.99               (multiply @ (inverse @ (multiply @ X2 @ X1)) @ 
% 16.97/2.99                (multiply @ X2 @ (inverse @ X0)))) @ 
% 16.97/2.99              (inverse @ (multiply @ (inverse @ X1) @ X1))))))
% 16.97/2.99           = (X0))),
% 16.97/2.99      inference('cnf', [status(esa)], [single_axiom])).
% 16.97/2.99  thf(zip_derived_cl2289, plain,
% 16.97/2.99      (![X0 : $i, X1 : $i]:
% 16.97/2.99         ((inverse @ 
% 16.97/2.99           (multiply @ (inverse @ X1) @ 
% 16.97/2.99            (inverse @ 
% 16.97/2.99             (multiply @ (inverse @ (multiply @ (inverse @ X0) @ X0)) @ 
% 16.97/2.99              (inverse @ 
% 16.97/2.99               (multiply @ (inverse @ (inverse @ X1)) @ (inverse @ X1)))))))
% 16.97/2.99           = (X1))),
% 16.97/2.99      inference('sup+', [status(thm)], [zip_derived_cl2056, zip_derived_cl0])).
% 16.97/2.99  thf(zip_derived_cl2056, plain,
% 16.97/2.99      (![X0 : $i, X1 : $i]:
% 16.97/2.99         ((multiply @ (inverse @ X0) @ X0) = (multiply @ (inverse @ X1) @ X1))),
% 16.97/2.99      inference('sup+', [status(thm)], [zip_derived_cl1716, zip_derived_cl1716])).
% 16.97/2.99  thf(zip_derived_cl2411, plain,
% 16.97/2.99      (![X0 : $i, X1 : $i]:
% 16.97/2.99         ((inverse @ 
% 16.97/2.99           (multiply @ (inverse @ X1) @ 
% 16.97/2.99            (inverse @ 
% 16.97/2.99             (multiply @ (inverse @ (multiply @ (inverse @ X0) @ X0)) @ 
% 16.97/2.99              (inverse @ (multiply @ (inverse @ X1) @ X1))))))
% 16.97/2.99           = (X1))),
% 16.97/2.99      inference('demod', [status(thm)],
% 16.97/2.99                [zip_derived_cl2289, zip_derived_cl2056])).
% 16.97/2.99  thf(zip_derived_cl2595, plain,
% 16.97/2.99      (![X0 : $i, X1 : $i, X2 : $i]:
% 16.97/2.99         ((inverse @ 
% 16.97/2.99           (multiply @ (inverse @ X1) @ 
% 16.97/2.99            (inverse @ 
% 16.97/2.99             (multiply @ (inverse @ (multiply @ (inverse @ X2) @ X2)) @ 
% 16.97/2.99              (inverse @ (multiply @ (inverse @ X0) @ X0))))))
% 16.97/2.99           = (X1))),
% 16.97/2.99      inference('sup+', [status(thm)], [zip_derived_cl2056, zip_derived_cl2411])).
% 16.97/2.99  thf(zip_derived_cl1716, plain,
% 16.97/2.99      (![X0 : $i, X1 : $i, X2 : $i]:
% 16.97/2.99         ((multiply @ 
% 16.97/2.99           (inverse @ 
% 16.97/2.99            (multiply @ X2 @ (inverse @ (multiply @ (inverse @ X0) @ X0)))) @ 
% 16.97/2.99           (multiply @ X2 @ (inverse @ (multiply @ (inverse @ X0) @ X0))))
% 16.97/2.99           = (multiply @ (inverse @ X1) @ X1))),
% 16.97/2.99      inference('demod', [status(thm)],
% 16.97/2.99                [zip_derived_cl1668, zip_derived_cl1118])).
% 16.97/2.99  thf(zip_derived_cl14, plain,
% 16.97/2.99      (![X0 : $i, X1 : $i, X2 : $i]:
% 16.97/2.99         ((inverse @ 
% 16.97/2.99           (inverse @ 
% 16.97/2.99            (multiply @ X0 @ 
% 16.97/2.99             (inverse @ 
% 16.97/2.99              (multiply @ 
% 16.97/2.99               (inverse @ 
% 16.97/2.99                (multiply @ (inverse @ (multiply @ X2 @ X0)) @ 
% 16.97/2.99                 (multiply @ X2 @ X1))) @ 
% 16.97/2.99               (inverse @ (multiply @ (inverse @ X0) @ X0)))))))
% 16.97/2.99           = (X1))),
% 16.97/2.99      inference('sup+', [status(thm)], [zip_derived_cl2, zip_derived_cl0])).
% 16.97/2.99  thf(zip_derived_cl1121, plain,
% 16.97/2.99      (![X0 : $i, X1 : $i, X2 : $i]:
% 16.97/2.99         ((multiply @ (inverse @ (multiply @ X2 @ X0)) @ 
% 16.97/2.99           (multiply @ X2 @ 
% 16.97/2.99            (inverse @ 
% 16.97/2.99             (inverse @ 
% 16.97/2.99              (multiply @ X0 @ 
% 16.97/2.99               (inverse @ 
% 16.97/2.99                (multiply @ (inverse @ X1) @ 
% 16.97/2.99                 (inverse @ (multiply @ (inverse @ X0) @ X0)))))))))
% 16.97/2.99           = (X1))),
% 16.97/2.99      inference('sup+', [status(thm)], [zip_derived_cl196, zip_derived_cl25])).
% 16.97/2.99  thf(zip_derived_cl1656, plain,
% 16.97/2.99      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i]:
% 16.97/2.99         ((multiply @ (inverse @ (multiply @ X3 @ X2)) @ (multiply @ X3 @ X0))
% 16.97/2.99           = (multiply @ (inverse @ (multiply @ X1 @ X2)) @ 
% 16.97/2.99              (multiply @ X1 @ X0)))),
% 16.97/2.99      inference('sup+', [status(thm)], [zip_derived_cl14, zip_derived_cl1121])).
% 16.97/2.99  thf(zip_derived_cl1938, plain,
% 16.97/2.99      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i, X4 : $i]:
% 16.97/2.99         ((multiply @ (inverse @ (multiply @ (inverse @ X2) @ X4)) @ 
% 16.97/2.99           (multiply @ 
% 16.97/2.99            (inverse @ 
% 16.97/2.99             (multiply @ X1 @ (inverse @ (multiply @ (inverse @ X0) @ X0)))) @ 
% 16.97/2.99            (multiply @ X1 @ (inverse @ (multiply @ (inverse @ X0) @ X0)))))
% 16.97/2.99           = (multiply @ (inverse @ (multiply @ X3 @ X4)) @ 
% 16.97/2.99              (multiply @ X3 @ X2)))),
% 16.97/2.99      inference('sup+', [status(thm)], [zip_derived_cl1716, zip_derived_cl1656])).
% 16.97/2.99  thf(zip_derived_cl1716, plain,
% 16.97/2.99      (![X0 : $i, X1 : $i, X2 : $i]:
% 16.97/2.99         ((multiply @ 
% 16.97/2.99           (inverse @ 
% 16.97/2.99            (multiply @ X2 @ (inverse @ (multiply @ (inverse @ X0) @ X0)))) @ 
% 16.97/2.99           (multiply @ X2 @ (inverse @ (multiply @ (inverse @ X0) @ X0))))
% 16.97/2.99           = (multiply @ (inverse @ X1) @ X1))),
% 16.97/2.99      inference('demod', [status(thm)],
% 16.97/2.99                [zip_derived_cl1668, zip_derived_cl1118])).
% 16.97/2.99  thf(zip_derived_cl2145, plain,
% 16.97/2.99      (![X1 : $i, X2 : $i, X3 : $i, X4 : $i]:
% 16.97/2.99         ((multiply @ (inverse @ (multiply @ (inverse @ X2) @ X4)) @ 
% 16.97/2.99           (multiply @ (inverse @ X1) @ X1))
% 16.97/2.99           = (multiply @ (inverse @ (multiply @ X3 @ X4)) @ 
% 16.97/2.99              (multiply @ X3 @ X2)))),
% 16.97/2.99      inference('demod', [status(thm)],
% 16.97/2.99                [zip_derived_cl1938, zip_derived_cl1716])).
% 16.97/2.99  thf(zip_derived_cl3934, plain,
% 16.97/2.99      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i, X4 : $i]:
% 16.97/2.99         ((multiply @ 
% 16.97/2.99           (inverse @ 
% 16.97/2.99            (multiply @ (inverse @ X1) @ 
% 16.97/2.99             (inverse @ 
% 16.97/2.99              (multiply @ (inverse @ (multiply @ (inverse @ X3) @ X3)) @ 
% 16.97/2.99               (inverse @ (multiply @ (inverse @ X2) @ X2)))))) @ 
% 16.97/2.99           (multiply @ (inverse @ X4) @ X4))
% 16.97/2.99           = (multiply @ X0 @ (multiply @ (inverse @ X0) @ X1)))),
% 16.97/2.99      inference('sup+', [status(thm)], [zip_derived_cl2595, zip_derived_cl2145])).
% 16.97/2.99  thf(zip_derived_cl2595, plain,
% 16.97/2.99      (![X0 : $i, X1 : $i, X2 : $i]:
% 16.97/2.99         ((inverse @ 
% 16.97/2.99           (multiply @ (inverse @ X1) @ 
% 16.97/2.99            (inverse @ 
% 16.97/2.99             (multiply @ (inverse @ (multiply @ (inverse @ X2) @ X2)) @ 
% 16.97/2.99              (inverse @ (multiply @ (inverse @ X0) @ X0))))))
% 16.97/2.99           = (X1))),
% 16.97/2.99      inference('sup+', [status(thm)], [zip_derived_cl2056, zip_derived_cl2411])).
% 16.97/2.99  thf(zip_derived_cl4089, plain,
% 16.97/2.99      (![X0 : $i, X1 : $i, X4 : $i]:
% 16.97/2.99         ((multiply @ X1 @ (multiply @ (inverse @ X4) @ X4))
% 16.97/2.99           = (multiply @ X0 @ (multiply @ (inverse @ X0) @ X1)))),
% 16.97/2.99      inference('demod', [status(thm)],
% 16.97/2.99                [zip_derived_cl3934, zip_derived_cl2595])).
% 16.97/2.99  thf(zip_derived_cl4089, plain,
% 16.97/2.99      (![X0 : $i, X1 : $i, X4 : $i]:
% 16.97/2.99         ((multiply @ X1 @ (multiply @ (inverse @ X4) @ X4))
% 16.97/2.99           = (multiply @ X0 @ (multiply @ (inverse @ X0) @ X1)))),
% 16.97/2.99      inference('demod', [status(thm)],
% 16.97/2.99                [zip_derived_cl3934, zip_derived_cl2595])).
% 16.97/2.99  thf(zip_derived_cl126, plain,
% 16.97/2.99      (![X0 : $i, X1 : $i, X2 : $i]:
% 16.97/2.99         ((inverse @ 
% 16.97/2.99           (multiply @ 
% 16.97/2.99            (inverse @ 
% 16.97/2.99             (multiply @ (inverse @ (multiply @ X2 @ X0)) @ 
% 16.97/2.99              (multiply @ X2 @ (inverse @ (inverse @ (multiply @ X0 @ X1)))))) @ 
% 16.97/2.99            (inverse @ (multiply @ (inverse @ X0) @ X0))))
% 16.97/2.99           = (X1))),
% 16.97/2.99      inference('sup+', [status(thm)], [zip_derived_cl69, zip_derived_cl14])).
% 16.97/2.99  thf(zip_derived_cl5508, plain,
% 16.97/2.99      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i]:
% 16.97/2.99         ((inverse @ 
% 16.97/2.99           (multiply @ 
% 16.97/2.99            (inverse @ 
% 16.97/2.99             (multiply @ (inverse @ (multiply @ X3 @ X2)) @ 
% 16.97/2.99              (multiply @ X3 @ 
% 16.97/2.99               (inverse @ 
% 16.97/2.99                (inverse @ (multiply @ X1 @ (multiply @ (inverse @ X0) @ X0))))))) @ 
% 16.97/2.99            (inverse @ (multiply @ (inverse @ X2) @ X2))))
% 16.97/2.99           = (multiply @ (inverse @ X2) @ X1))),
% 16.97/2.99      inference('sup+', [status(thm)], [zip_derived_cl4089, zip_derived_cl126])).
% 16.97/2.99  thf(zip_derived_cl2595, plain,
% 16.97/2.99      (![X0 : $i, X1 : $i, X2 : $i]:
% 16.97/2.99         ((inverse @ 
% 16.97/2.99           (multiply @ (inverse @ X1) @ 
% 16.97/2.99            (inverse @ 
% 16.97/2.99             (multiply @ (inverse @ (multiply @ (inverse @ X2) @ X2)) @ 
% 16.97/2.99              (inverse @ (multiply @ (inverse @ X0) @ X0))))))
% 16.97/2.99           = (X1))),
% 16.97/2.99      inference('sup+', [status(thm)], [zip_derived_cl2056, zip_derived_cl2411])).
% 16.97/2.99  thf(zip_derived_cl2056, plain,
% 16.97/2.99      (![X0 : $i, X1 : $i]:
% 16.97/2.99         ((multiply @ (inverse @ X0) @ X0) = (multiply @ (inverse @ X1) @ X1))),
% 16.97/2.99      inference('sup+', [status(thm)], [zip_derived_cl1716, zip_derived_cl1716])).
% 16.97/2.99  thf(zip_derived_cl1716, plain,
% 16.97/2.99      (![X0 : $i, X1 : $i, X2 : $i]:
% 16.97/2.99         ((multiply @ 
% 16.97/2.99           (inverse @ 
% 16.97/2.99            (multiply @ X2 @ (inverse @ (multiply @ (inverse @ X0) @ X0)))) @ 
% 16.97/2.99           (multiply @ X2 @ (inverse @ (multiply @ (inverse @ X0) @ X0))))
% 16.97/2.99           = (multiply @ (inverse @ X1) @ X1))),
% 16.97/2.99      inference('demod', [status(thm)],
% 16.97/2.99                [zip_derived_cl1668, zip_derived_cl1118])).
% 16.97/2.99  thf(zip_derived_cl14, plain,
% 16.97/2.99      (![X0 : $i, X1 : $i, X2 : $i]:
% 16.97/2.99         ((inverse @ 
% 16.97/2.99           (inverse @ 
% 16.97/2.99            (multiply @ X0 @ 
% 16.97/2.99             (inverse @ 
% 16.97/2.99              (multiply @ 
% 16.97/2.99               (inverse @ 
% 16.97/2.99                (multiply @ (inverse @ (multiply @ X2 @ X0)) @ 
% 16.97/2.99                 (multiply @ X2 @ X1))) @ 
% 16.97/2.99               (inverse @ (multiply @ (inverse @ X0) @ X0)))))))
% 16.97/2.99           = (X1))),
% 16.97/2.99      inference('sup+', [status(thm)], [zip_derived_cl2, zip_derived_cl0])).
% 16.97/2.99  thf(zip_derived_cl1993, plain,
% 16.97/2.99      (![X0 : $i, X1 : $i, X2 : $i]:
% 16.97/2.99         ((inverse @ 
% 16.97/2.99           (inverse @ 
% 16.97/2.99            (multiply @ X2 @ 
% 16.97/2.99             (inverse @ 
% 16.97/2.99              (multiply @ 
% 16.97/2.99               (inverse @ 
% 16.97/2.99                (multiply @ 
% 16.97/2.99                 (inverse @ 
% 16.97/2.99                  (multiply @ X1 @ (inverse @ (multiply @ (inverse @ X0) @ X0)))) @ 
% 16.97/2.99                 (multiply @ X1 @ (inverse @ (multiply @ (inverse @ X0) @ X0))))) @ 
% 16.97/2.99               (inverse @ (multiply @ (inverse @ X2) @ X2)))))))
% 16.97/2.99           = (X2))),
% 16.97/2.99      inference('sup+', [status(thm)], [zip_derived_cl1716, zip_derived_cl14])).
% 16.97/2.99  thf(zip_derived_cl1716, plain,
% 16.97/2.99      (![X0 : $i, X1 : $i, X2 : $i]:
% 16.97/2.99         ((multiply @ 
% 16.97/2.99           (inverse @ 
% 16.97/2.99            (multiply @ X2 @ (inverse @ (multiply @ (inverse @ X0) @ X0)))) @ 
% 16.97/2.99           (multiply @ X2 @ (inverse @ (multiply @ (inverse @ X0) @ X0))))
% 16.97/2.99           = (multiply @ (inverse @ X1) @ X1))),
% 16.97/2.99      inference('demod', [status(thm)],
% 16.97/2.99                [zip_derived_cl1668, zip_derived_cl1118])).
% 16.97/2.99  thf(zip_derived_cl2199, plain,
% 16.97/2.99      (![X1 : $i, X2 : $i]:
% 16.97/2.99         ((inverse @ 
% 16.97/2.99           (inverse @ 
% 16.97/2.99            (multiply @ X2 @ 
% 16.97/2.99             (inverse @ 
% 16.97/2.99              (multiply @ (inverse @ (multiply @ (inverse @ X1) @ X1)) @ 
% 16.97/2.99               (inverse @ (multiply @ (inverse @ X2) @ X2)))))))
% 16.97/2.99           = (X2))),
% 16.97/2.99      inference('demod', [status(thm)],
% 16.97/2.99                [zip_derived_cl1993, zip_derived_cl1716])).
% 16.97/2.99  thf(zip_derived_cl2482, plain,
% 16.97/2.99      (![X0 : $i, X1 : $i, X2 : $i]:
% 16.97/2.99         ((inverse @ 
% 16.97/2.99           (inverse @ 
% 16.97/2.99            (multiply @ X1 @ 
% 16.97/2.99             (inverse @ 
% 16.97/2.99              (multiply @ (inverse @ (multiply @ (inverse @ X2) @ X2)) @ 
% 16.97/2.99               (inverse @ (multiply @ (inverse @ X0) @ X0)))))))
% 16.97/2.99           = (X1))),
% 16.97/2.99      inference('sup+', [status(thm)], [zip_derived_cl2056, zip_derived_cl2199])).
% 16.97/2.99  thf(zip_derived_cl3970, plain,
% 16.97/2.99      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i]:
% 16.97/2.99         ((inverse @ 
% 16.97/2.99           (inverse @ 
% 16.97/2.99            (multiply @ X2 @ 
% 16.97/2.99             (inverse @ 
% 16.97/2.99              (multiply @ (inverse @ (multiply @ (inverse @ X3) @ X3)) @ 
% 16.97/2.99               (inverse @ 
% 16.97/2.99                (multiply @ (inverse @ (multiply @ (inverse @ X1) @ X1)) @ 
% 16.97/2.99                 (inverse @ (multiply @ (inverse @ X0) @ X0)))))))))
% 16.97/2.99           = (X2))),
% 16.97/2.99      inference('sup+', [status(thm)], [zip_derived_cl2595, zip_derived_cl2482])).
% 16.97/2.99  thf(zip_derived_cl2595, plain,
% 16.97/2.99      (![X0 : $i, X1 : $i, X2 : $i]:
% 16.97/2.99         ((inverse @ 
% 16.97/2.99           (multiply @ (inverse @ X1) @ 
% 16.97/2.99            (inverse @ 
% 16.97/2.99             (multiply @ (inverse @ (multiply @ (inverse @ X2) @ X2)) @ 
% 16.97/2.99              (inverse @ (multiply @ (inverse @ X0) @ X0))))))
% 16.97/2.99           = (X1))),
% 16.97/2.99      inference('sup+', [status(thm)], [zip_derived_cl2056, zip_derived_cl2411])).
% 16.97/2.99  thf(zip_derived_cl4112, plain,
% 16.97/2.99      (![X2 : $i, X3 : $i]:
% 16.97/2.99         ((inverse @ 
% 16.97/2.99           (inverse @ (multiply @ X2 @ (multiply @ (inverse @ X3) @ X3))))
% 16.97/2.99           = (X2))),
% 16.97/2.99      inference('demod', [status(thm)],
% 16.97/2.99                [zip_derived_cl3970, zip_derived_cl2595])).
% 16.97/2.99  thf(zip_derived_cl2595, plain,
% 16.97/2.99      (![X0 : $i, X1 : $i, X2 : $i]:
% 16.97/2.99         ((inverse @ 
% 16.97/2.99           (multiply @ (inverse @ X1) @ 
% 16.97/2.99            (inverse @ 
% 16.97/2.99             (multiply @ (inverse @ (multiply @ (inverse @ X2) @ X2)) @ 
% 16.97/2.99              (inverse @ (multiply @ (inverse @ X0) @ X0))))))
% 16.97/2.99           = (X1))),
% 16.97/2.99      inference('sup+', [status(thm)], [zip_derived_cl2056, zip_derived_cl2411])).
% 16.97/2.99  thf(zip_derived_cl2595, plain,
% 16.97/2.99      (![X0 : $i, X1 : $i, X2 : $i]:
% 16.97/2.99         ((inverse @ 
% 16.97/2.99           (multiply @ (inverse @ X1) @ 
% 16.97/2.99            (inverse @ 
% 16.97/2.99             (multiply @ (inverse @ (multiply @ (inverse @ X2) @ X2)) @ 
% 16.97/2.99              (inverse @ (multiply @ (inverse @ X0) @ X0))))))
% 16.97/2.99           = (X1))),
% 16.97/2.99      inference('sup+', [status(thm)], [zip_derived_cl2056, zip_derived_cl2411])).
% 16.97/2.99  thf(zip_derived_cl3991, plain,
% 16.97/2.99      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i]:
% 16.97/2.99         ((inverse @ 
% 16.97/2.99           (multiply @ (inverse @ X2) @ 
% 16.97/2.99            (inverse @ 
% 16.97/2.99             (multiply @ (inverse @ (multiply @ (inverse @ X3) @ X3)) @ 
% 16.97/2.99              (inverse @ 
% 16.97/2.99               (multiply @ (inverse @ (multiply @ (inverse @ X1) @ X1)) @ 
% 16.97/2.99                (inverse @ (multiply @ (inverse @ X0) @ X0))))))))
% 16.97/2.99           = (X2))),
% 16.97/2.99      inference('sup+', [status(thm)], [zip_derived_cl2595, zip_derived_cl2595])).
% 16.97/2.99  thf(zip_derived_cl2595, plain,
% 16.97/2.99      (![X0 : $i, X1 : $i, X2 : $i]:
% 16.97/2.99         ((inverse @ 
% 16.97/2.99           (multiply @ (inverse @ X1) @ 
% 16.97/2.99            (inverse @ 
% 16.97/2.99             (multiply @ (inverse @ (multiply @ (inverse @ X2) @ X2)) @ 
% 16.97/2.99              (inverse @ (multiply @ (inverse @ X0) @ X0))))))
% 16.97/2.99           = (X1))),
% 16.97/2.99      inference('sup+', [status(thm)], [zip_derived_cl2056, zip_derived_cl2411])).
% 16.97/2.99  thf(zip_derived_cl4046, plain,
% 16.97/2.99      (![X2 : $i, X3 : $i]:
% 16.97/2.99         ((inverse @ 
% 16.97/2.99           (multiply @ (inverse @ X2) @ (multiply @ (inverse @ X3) @ X3)))
% 16.97/2.99           = (X2))),
% 16.97/2.99      inference('demod', [status(thm)],
% 16.97/2.99                [zip_derived_cl3991, zip_derived_cl2595])).
% 16.97/2.99  thf(zip_derived_cl2595, plain,
% 16.97/2.99      (![X0 : $i, X1 : $i, X2 : $i]:
% 16.97/2.99         ((inverse @ 
% 16.97/2.99           (multiply @ (inverse @ X1) @ 
% 16.97/2.99            (inverse @ 
% 16.97/2.99             (multiply @ (inverse @ (multiply @ (inverse @ X2) @ X2)) @ 
% 16.97/2.99              (inverse @ (multiply @ (inverse @ X0) @ X0))))))
% 16.97/2.99           = (X1))),
% 16.97/2.99      inference('sup+', [status(thm)], [zip_derived_cl2056, zip_derived_cl2411])).
% 16.97/2.99  thf(zip_derived_cl4211, plain,
% 16.97/2.99      (![X0 : $i, X1 : $i, X2 : $i]:
% 16.97/2.99         ((inverse @ 
% 16.97/2.99           (multiply @ (inverse @ X1) @ 
% 16.97/2.99            (inverse @ 
% 16.97/2.99             (multiply @ (inverse @ (multiply @ (inverse @ X2) @ X2)) @ 
% 16.97/2.99              (multiply @ (inverse @ X0) @ X0)))))
% 16.97/2.99           = (X1))),
% 16.97/2.99      inference('sup+', [status(thm)], [zip_derived_cl4046, zip_derived_cl2595])).
% 16.97/2.99  thf(zip_derived_cl1716, plain,
% 16.97/2.99      (![X0 : $i, X1 : $i, X2 : $i]:
% 16.97/2.99         ((multiply @ 
% 16.97/2.99           (inverse @ 
% 16.97/2.99            (multiply @ X2 @ (inverse @ (multiply @ (inverse @ X0) @ X0)))) @ 
% 16.97/2.99           (multiply @ X2 @ (inverse @ (multiply @ (inverse @ X0) @ X0))))
% 16.97/2.99           = (multiply @ (inverse @ X1) @ X1))),
% 16.97/2.99      inference('demod', [status(thm)],
% 16.97/2.99                [zip_derived_cl1668, zip_derived_cl1118])).
% 16.97/2.99  thf(zip_derived_cl1656, plain,
% 16.97/2.99      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i]:
% 16.97/2.99         ((multiply @ (inverse @ (multiply @ X3 @ X2)) @ (multiply @ X3 @ X0))
% 16.97/2.99           = (multiply @ (inverse @ (multiply @ X1 @ X2)) @ 
% 16.97/2.99              (multiply @ X1 @ X0)))),
% 16.97/2.99      inference('sup+', [status(thm)], [zip_derived_cl14, zip_derived_cl1121])).
% 16.97/2.99  thf(zip_derived_cl1929, plain,
% 16.97/2.99      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i, X4 : $i]:
% 16.97/2.99         ((multiply @ 
% 16.97/2.99           (inverse @ 
% 16.97/2.99            (multiply @ 
% 16.97/2.99             (inverse @ 
% 16.97/2.99              (multiply @ X1 @ (inverse @ (multiply @ (inverse @ X0) @ X0)))) @ 
% 16.97/2.99             (multiply @ X1 @ (inverse @ (multiply @ (inverse @ X0) @ X0))))) @ 
% 16.97/2.99           (multiply @ (inverse @ X4) @ X2))
% 16.97/2.99           = (multiply @ (inverse @ (multiply @ X3 @ X4)) @ 
% 16.97/2.99              (multiply @ X3 @ X2)))),
% 16.97/2.99      inference('sup+', [status(thm)], [zip_derived_cl1716, zip_derived_cl1656])).
% 16.97/2.99  thf(zip_derived_cl1716, plain,
% 16.97/2.99      (![X0 : $i, X1 : $i, X2 : $i]:
% 16.97/2.99         ((multiply @ 
% 16.97/2.99           (inverse @ 
% 16.97/2.99            (multiply @ X2 @ (inverse @ (multiply @ (inverse @ X0) @ X0)))) @ 
% 16.97/2.99           (multiply @ X2 @ (inverse @ (multiply @ (inverse @ X0) @ X0))))
% 16.97/2.99           = (multiply @ (inverse @ X1) @ X1))),
% 16.97/2.99      inference('demod', [status(thm)],
% 16.97/2.99                [zip_derived_cl1668, zip_derived_cl1118])).
% 16.97/2.99  thf(zip_derived_cl2136, plain,
% 16.97/2.99      (![X1 : $i, X2 : $i, X3 : $i, X4 : $i]:
% 16.97/2.99         ((multiply @ (inverse @ (multiply @ (inverse @ X1) @ X1)) @ 
% 16.97/2.99           (multiply @ (inverse @ X4) @ X2))
% 16.97/2.99           = (multiply @ (inverse @ (multiply @ X3 @ X4)) @ 
% 16.97/2.99              (multiply @ X3 @ X2)))),
% 16.97/2.99      inference('demod', [status(thm)],
% 16.97/2.99                [zip_derived_cl1929, zip_derived_cl1716])).
% 16.97/2.99  thf(zip_derived_cl2056, plain,
% 16.97/2.99      (![X0 : $i, X1 : $i]:
% 16.97/2.99         ((multiply @ (inverse @ X0) @ X0) = (multiply @ (inverse @ X1) @ X1))),
% 16.97/2.99      inference('sup+', [status(thm)], [zip_derived_cl1716, zip_derived_cl1716])).
% 16.97/2.99  thf(zip_derived_cl2969, plain,
% 16.97/2.99      (![X0 : $i, X1 : $i, X2 : $i]:
% 16.97/2.99         ((multiply @ (inverse @ X2) @ X2)
% 16.97/2.99           = (multiply @ (inverse @ (multiply @ (inverse @ X1) @ X1)) @ 
% 16.97/2.99              (multiply @ (inverse @ X0) @ X0)))),
% 16.97/2.99      inference('sup+', [status(thm)], [zip_derived_cl2136, zip_derived_cl2056])).
% 16.97/2.99  thf(zip_derived_cl4328, plain,
% 16.97/2.99      (![X1 : $i, X2 : $i]:
% 16.97/2.99         ((inverse @ 
% 16.97/2.99           (multiply @ (inverse @ X1) @ 
% 16.97/2.99            (inverse @ (multiply @ (inverse @ X2) @ X2))))
% 16.97/2.99           = (X1))),
% 16.97/2.99      inference('demod', [status(thm)],
% 16.97/2.99                [zip_derived_cl4211, zip_derived_cl2969])).
% 16.97/2.99  thf(zip_derived_cl5642, plain,
% 16.97/2.99      (![X1 : $i, X2 : $i, X3 : $i]:
% 16.97/2.99         ((multiply @ (inverse @ (multiply @ X3 @ X2)) @ (multiply @ X3 @ X1))
% 16.97/2.99           = (multiply @ (inverse @ X2) @ X1))),
% 16.97/2.99      inference('demod', [status(thm)],
% 16.97/2.99                [zip_derived_cl5508, zip_derived_cl4112, zip_derived_cl4328])).
% 16.97/2.99  thf(zip_derived_cl4046, plain,
% 16.97/2.99      (![X2 : $i, X3 : $i]:
% 16.97/2.99         ((inverse @ 
% 16.97/2.99           (multiply @ (inverse @ X2) @ (multiply @ (inverse @ X3) @ X3)))
% 16.97/2.99           = (X2))),
% 16.97/2.99      inference('demod', [status(thm)],
% 16.97/2.99                [zip_derived_cl3991, zip_derived_cl2595])).
% 16.97/2.99  thf(zip_derived_cl6092, plain,
% 16.97/2.99      (![X0 : $i, X1 : $i]:
% 16.97/2.99         ((inverse @ (multiply @ (inverse @ X1) @ X0))
% 16.97/2.99           = (multiply @ (inverse @ X0) @ X1))),
% 16.97/2.99      inference('sup+', [status(thm)], [zip_derived_cl5642, zip_derived_cl4046])).
% 16.97/2.99  thf(zip_derived_cl6217, plain,
% 16.97/2.99      (![X0 : $i, X1 : $i, X2 : $i]:
% 16.97/2.99         ((inverse @ 
% 16.97/2.99           (multiply @ X1 @ (multiply @ (inverse @ X1) @ (inverse @ X0))))
% 16.97/2.99           = (multiply @ (inverse @ (multiply @ (inverse @ X2) @ X2)) @ X0))),
% 16.97/2.99      inference('sup+', [status(thm)], [zip_derived_cl4089, zip_derived_cl6092])).
% 16.97/2.99  thf(zip_derived_cl4089, plain,
% 16.97/2.99      (![X0 : $i, X1 : $i, X4 : $i]:
% 16.97/2.99         ((multiply @ X1 @ (multiply @ (inverse @ X4) @ X4))
% 16.97/2.99           = (multiply @ X0 @ (multiply @ (inverse @ X0) @ X1)))),
% 16.97/2.99      inference('demod', [status(thm)],
% 16.97/2.99                [zip_derived_cl3934, zip_derived_cl2595])).
% 16.97/2.99  thf(zip_derived_cl4046, plain,
% 16.97/2.99      (![X2 : $i, X3 : $i]:
% 16.97/2.99         ((inverse @ 
% 16.97/2.99           (multiply @ (inverse @ X2) @ (multiply @ (inverse @ X3) @ X3)))
% 16.97/2.99           = (X2))),
% 16.97/2.99      inference('demod', [status(thm)],
% 16.97/2.99                [zip_derived_cl3991, zip_derived_cl2595])).
% 16.97/2.99  thf(zip_derived_cl5559, plain,
% 16.97/2.99      (![X0 : $i, X1 : $i]:
% 16.97/2.99         ((inverse @ 
% 16.97/2.99           (multiply @ X1 @ (multiply @ (inverse @ X1) @ (inverse @ X0))))
% 16.97/2.99           = (X0))),
% 16.97/2.99      inference('sup+', [status(thm)], [zip_derived_cl4089, zip_derived_cl4046])).
% 16.97/2.99  thf(zip_derived_cl6092, plain,
% 16.97/2.99      (![X0 : $i, X1 : $i]:
% 16.97/2.99         ((inverse @ (multiply @ (inverse @ X1) @ X0))
% 16.97/2.99           = (multiply @ (inverse @ X0) @ X1))),
% 16.97/2.99      inference('sup+', [status(thm)], [zip_derived_cl5642, zip_derived_cl4046])).
% 16.97/2.99  thf(zip_derived_cl6236, plain,
% 16.97/2.99      (![X0 : $i, X2 : $i]:
% 16.97/2.99         ((X0) = (multiply @ (multiply @ (inverse @ X2) @ X2) @ X0))),
% 16.97/2.99      inference('demod', [status(thm)],
% 16.97/2.99                [zip_derived_cl6217, zip_derived_cl5559, zip_derived_cl6092])).
% 16.97/2.99  thf(zip_derived_cl6248, plain,
% 16.97/2.99      ((((multiply @ (multiply @ a3 @ b3) @ c3)
% 16.97/2.99          != (multiply @ a3 @ (multiply @ b3 @ c3)))
% 16.97/2.99        | ((a2) != (a2)))),
% 16.97/2.99      inference('demod', [status(thm)],
% 16.97/2.99                [zip_derived_cl2416, zip_derived_cl6236])).
% 16.97/2.99  thf(zip_derived_cl6249, plain,
% 16.97/2.99      (((multiply @ (multiply @ a3 @ b3) @ c3)
% 16.97/2.99         != (multiply @ a3 @ (multiply @ b3 @ c3)))),
% 16.97/2.99      inference('simplify', [status(thm)], [zip_derived_cl6248])).
% 16.97/2.99  thf(zip_derived_cl6236, plain,
% 16.97/2.99      (![X0 : $i, X2 : $i]:
% 16.97/2.99         ((X0) = (multiply @ (multiply @ (inverse @ X2) @ X2) @ X0))),
% 16.97/2.99      inference('demod', [status(thm)],
% 16.97/2.99                [zip_derived_cl6217, zip_derived_cl5559, zip_derived_cl6092])).
% 16.97/2.99  thf(zip_derived_cl4089, plain,
% 16.97/2.99      (![X0 : $i, X1 : $i, X4 : $i]:
% 16.97/2.99         ((multiply @ X1 @ (multiply @ (inverse @ X4) @ X4))
% 16.97/2.99           = (multiply @ X0 @ (multiply @ (inverse @ X0) @ X1)))),
% 16.97/2.99      inference('demod', [status(thm)],
% 16.97/2.99                [zip_derived_cl3934, zip_derived_cl2595])).
% 16.97/2.99  thf(zip_derived_cl6253, plain,
% 16.97/2.99      (![X0 : $i, X1 : $i, X2 : $i]:
% 16.97/2.99         ((multiply @ X0 @ (multiply @ (inverse @ X2) @ X2))
% 16.97/2.99           = (multiply @ (inverse @ (multiply @ (inverse @ X1) @ X1)) @ X0))),
% 16.97/2.99      inference('sup+', [status(thm)], [zip_derived_cl6236, zip_derived_cl4089])).
% 16.97/2.99  thf(zip_derived_cl2056, plain,
% 16.97/2.99      (![X0 : $i, X1 : $i]:
% 16.97/2.99         ((multiply @ (inverse @ X0) @ X0) = (multiply @ (inverse @ X1) @ X1))),
% 16.97/2.99      inference('sup+', [status(thm)], [zip_derived_cl1716, zip_derived_cl1716])).
% 16.97/2.99  thf(zip_derived_cl4046, plain,
% 16.97/2.99      (![X2 : $i, X3 : $i]:
% 16.97/2.99         ((inverse @ 
% 16.97/2.99           (multiply @ (inverse @ X2) @ (multiply @ (inverse @ X3) @ X3)))
% 16.97/2.99           = (X2))),
% 16.97/2.99      inference('demod', [status(thm)],
% 16.97/2.99                [zip_derived_cl3991, zip_derived_cl2595])).
% 16.97/2.99  thf(zip_derived_cl4230, plain,
% 16.97/2.99      (![X0 : $i, X1 : $i]:
% 16.97/2.99         ((inverse @ (multiply @ (inverse @ X0) @ X0))
% 16.97/2.99           = (multiply @ (inverse @ X1) @ X1))),
% 16.97/2.99      inference('sup+', [status(thm)], [zip_derived_cl2056, zip_derived_cl4046])).
% 16.97/2.99  thf(zip_derived_cl6236, plain,
% 16.97/2.99      (![X0 : $i, X2 : $i]:
% 16.97/2.99         ((X0) = (multiply @ (multiply @ (inverse @ X2) @ X2) @ X0))),
% 16.97/2.99      inference('demod', [status(thm)],
% 16.97/2.99                [zip_derived_cl6217, zip_derived_cl5559, zip_derived_cl6092])).
% 16.97/2.99  thf(zip_derived_cl6276, plain,
% 16.97/2.99      (![X0 : $i, X2 : $i]:
% 16.97/2.99         ((multiply @ X0 @ (multiply @ (inverse @ X2) @ X2)) = (X0))),
% 16.97/2.99      inference('demod', [status(thm)],
% 16.97/2.99                [zip_derived_cl6253, zip_derived_cl4230, zip_derived_cl6236])).
% 16.97/2.99  thf(zip_derived_cl5642, plain,
% 16.97/2.99      (![X1 : $i, X2 : $i, X3 : $i]:
% 16.97/2.99         ((multiply @ (inverse @ (multiply @ X3 @ X2)) @ (multiply @ X3 @ X1))
% 16.97/2.99           = (multiply @ (inverse @ X2) @ X1))),
% 16.97/2.99      inference('demod', [status(thm)],
% 16.97/2.99                [zip_derived_cl5508, zip_derived_cl4112, zip_derived_cl4328])).
% 16.97/2.99  thf(zip_derived_cl6313, plain,
% 16.97/2.99      (![X0 : $i, X1 : $i, X2 : $i]:
% 16.97/2.99         ((multiply @ (inverse @ (multiply @ X0 @ X2)) @ X0)
% 16.97/2.99           = (multiply @ (inverse @ X2) @ (multiply @ (inverse @ X1) @ X1)))),
% 16.97/2.99      inference('sup+', [status(thm)], [zip_derived_cl6276, zip_derived_cl5642])).
% 16.97/2.99  thf(zip_derived_cl6276, plain,
% 16.97/2.99      (![X0 : $i, X2 : $i]:
% 16.97/2.99         ((multiply @ X0 @ (multiply @ (inverse @ X2) @ X2)) = (X0))),
% 16.97/2.99      inference('demod', [status(thm)],
% 16.97/2.99                [zip_derived_cl6253, zip_derived_cl4230, zip_derived_cl6236])).
% 16.97/2.99  thf(zip_derived_cl6341, plain,
% 16.97/2.99      (![X0 : $i, X2 : $i]:
% 16.97/2.99         ((multiply @ (inverse @ (multiply @ X0 @ X2)) @ X0) = (inverse @ X2))),
% 16.97/2.99      inference('demod', [status(thm)],
% 16.97/2.99                [zip_derived_cl6313, zip_derived_cl6276])).
% 16.97/2.99  thf(zip_derived_cl6341, plain,
% 16.97/2.99      (![X0 : $i, X2 : $i]:
% 16.97/2.99         ((multiply @ (inverse @ (multiply @ X0 @ X2)) @ X0) = (inverse @ X2))),
% 16.97/2.99      inference('demod', [status(thm)],
% 16.97/2.99                [zip_derived_cl6313, zip_derived_cl6276])).
% 16.97/2.99  thf(zip_derived_cl6497, plain,
% 16.97/2.99      (![X0 : $i, X1 : $i]:
% 16.97/2.99         ((multiply @ (inverse @ (inverse @ X0)) @ 
% 16.97/2.99           (inverse @ (multiply @ X1 @ X0))) = (inverse @ X1))),
% 16.97/2.99      inference('sup+', [status(thm)], [zip_derived_cl6341, zip_derived_cl6341])).
% 16.97/2.99  thf(zip_derived_cl6236, plain,
% 16.97/2.99      (![X0 : $i, X2 : $i]:
% 16.97/2.99         ((X0) = (multiply @ (multiply @ (inverse @ X2) @ X2) @ X0))),
% 16.97/2.99      inference('demod', [status(thm)],
% 16.97/2.99                [zip_derived_cl6217, zip_derived_cl5559, zip_derived_cl6092])).
% 16.97/2.99  thf(zip_derived_cl126, plain,
% 16.97/2.99      (![X0 : $i, X1 : $i, X2 : $i]:
% 16.97/2.99         ((inverse @ 
% 16.97/2.99           (multiply @ 
% 16.97/2.99            (inverse @ 
% 16.97/2.99             (multiply @ (inverse @ (multiply @ X2 @ X0)) @ 
% 16.97/2.99              (multiply @ X2 @ (inverse @ (inverse @ (multiply @ X0 @ X1)))))) @ 
% 16.97/2.99            (inverse @ (multiply @ (inverse @ X0) @ X0))))
% 16.97/2.99           = (X1))),
% 16.97/2.99      inference('sup+', [status(thm)], [zip_derived_cl69, zip_derived_cl14])).
% 16.97/2.99  thf(zip_derived_cl5642, plain,
% 16.97/2.99      (![X1 : $i, X2 : $i, X3 : $i]:
% 16.97/2.99         ((multiply @ (inverse @ (multiply @ X3 @ X2)) @ (multiply @ X3 @ X1))
% 16.97/2.99           = (multiply @ (inverse @ X2) @ X1))),
% 16.97/2.99      inference('demod', [status(thm)],
% 16.97/2.99                [zip_derived_cl5508, zip_derived_cl4112, zip_derived_cl4328])).
% 16.97/2.99  thf(zip_derived_cl4328, plain,
% 16.97/2.99      (![X1 : $i, X2 : $i]:
% 16.97/2.99         ((inverse @ 
% 16.97/2.99           (multiply @ (inverse @ X1) @ 
% 16.97/2.99            (inverse @ (multiply @ (inverse @ X2) @ X2))))
% 16.97/2.99           = (X1))),
% 16.97/2.99      inference('demod', [status(thm)],
% 16.97/2.99                [zip_derived_cl4211, zip_derived_cl2969])).
% 16.97/2.99  thf(zip_derived_cl6062, plain,
% 16.97/2.99      (![X0 : $i, X1 : $i]:
% 16.97/2.99         ((multiply @ (inverse @ X0) @ 
% 16.97/2.99           (inverse @ (inverse @ (multiply @ X0 @ X1)))) = (X1))),
% 16.97/2.99      inference('demod', [status(thm)],
% 16.97/2.99                [zip_derived_cl126, zip_derived_cl5642, zip_derived_cl4328])).
% 16.97/2.99  thf(zip_derived_cl6252, plain,
% 16.97/2.99      (![X0 : $i, X1 : $i]:
% 16.97/2.99         ((multiply @ (inverse @ (multiply @ (inverse @ X1) @ X1)) @ 
% 16.97/2.99           (inverse @ (inverse @ X0))) = (X0))),
% 16.97/2.99      inference('sup+', [status(thm)], [zip_derived_cl6236, zip_derived_cl6062])).
% 16.97/2.99  thf(zip_derived_cl4230, plain,
% 16.97/2.99      (![X0 : $i, X1 : $i]:
% 16.97/2.99         ((inverse @ (multiply @ (inverse @ X0) @ X0))
% 16.97/2.99           = (multiply @ (inverse @ X1) @ X1))),
% 16.97/2.99      inference('sup+', [status(thm)], [zip_derived_cl2056, zip_derived_cl4046])).
% 16.97/2.99  thf(zip_derived_cl6236, plain,
% 16.97/2.99      (![X0 : $i, X2 : $i]:
% 16.97/2.99         ((X0) = (multiply @ (multiply @ (inverse @ X2) @ X2) @ X0))),
% 16.97/2.99      inference('demod', [status(thm)],
% 16.97/2.99                [zip_derived_cl6217, zip_derived_cl5559, zip_derived_cl6092])).
% 16.97/2.99  thf(zip_derived_cl6275, plain,
% 16.97/2.99      (![X0 : $i]: ((inverse @ (inverse @ X0)) = (X0))),
% 16.97/2.99      inference('demod', [status(thm)],
% 16.97/2.99                [zip_derived_cl6252, zip_derived_cl4230, zip_derived_cl6236])).
% 16.97/2.99  thf(zip_derived_cl6508, plain,
% 16.97/2.99      (![X0 : $i, X1 : $i]:
% 16.97/2.99         ((multiply @ X0 @ (inverse @ (multiply @ X1 @ X0))) = (inverse @ X1))),
% 16.97/2.99      inference('demod', [status(thm)],
% 16.97/2.99                [zip_derived_cl6497, zip_derived_cl6275])).
% 16.97/2.99  thf(zip_derived_cl5642, plain,
% 16.97/2.99      (![X1 : $i, X2 : $i, X3 : $i]:
% 16.97/2.99         ((multiply @ (inverse @ (multiply @ X3 @ X2)) @ (multiply @ X3 @ X1))
% 16.97/2.99           = (multiply @ (inverse @ X2) @ X1))),
% 16.97/2.99      inference('demod', [status(thm)],
% 16.97/2.99                [zip_derived_cl5508, zip_derived_cl4112, zip_derived_cl4328])).
% 16.97/2.99  thf(zip_derived_cl6583, plain,
% 16.97/2.99      (![X0 : $i, X1 : $i, X2 : $i]:
% 16.97/2.99         ((multiply @ (inverse @ (inverse @ X0)) @ (multiply @ X2 @ X1))
% 16.97/2.99           = (multiply @ (inverse @ (inverse @ (multiply @ X0 @ X2))) @ X1))),
% 16.97/2.99      inference('sup+', [status(thm)], [zip_derived_cl6508, zip_derived_cl5642])).
% 16.97/2.99  thf(zip_derived_cl6275, plain,
% 16.97/2.99      (![X0 : $i]: ((inverse @ (inverse @ X0)) = (X0))),
% 16.97/2.99      inference('demod', [status(thm)],
% 16.97/2.99                [zip_derived_cl6252, zip_derived_cl4230, zip_derived_cl6236])).
% 16.97/2.99  thf(zip_derived_cl6275, plain,
% 16.97/2.99      (![X0 : $i]: ((inverse @ (inverse @ X0)) = (X0))),
% 16.97/2.99      inference('demod', [status(thm)],
% 16.97/2.99                [zip_derived_cl6252, zip_derived_cl4230, zip_derived_cl6236])).
% 16.97/2.99  thf(zip_derived_cl6624, plain,
% 16.97/2.99      (![X0 : $i, X1 : $i, X2 : $i]:
% 16.97/2.99         ((multiply @ X0 @ (multiply @ X2 @ X1))
% 16.97/2.99           = (multiply @ (multiply @ X0 @ X2) @ X1))),
% 16.97/2.99      inference('demod', [status(thm)],
% 16.97/2.99                [zip_derived_cl6583, zip_derived_cl6275, zip_derived_cl6275])).
% 16.97/2.99  thf(zip_derived_cl6630, plain,
% 16.97/2.99      (((multiply @ a3 @ (multiply @ b3 @ c3))
% 16.97/2.99         != (multiply @ a3 @ (multiply @ b3 @ c3)))),
% 16.97/2.99      inference('demod', [status(thm)],
% 16.97/2.99                [zip_derived_cl6249, zip_derived_cl6624])).
% 16.97/2.99  thf(zip_derived_cl6631, plain, ($false),
% 16.97/2.99      inference('simplify', [status(thm)], [zip_derived_cl6630])).
% 16.97/2.99  
% 16.97/2.99  % SZS output end Refutation
% 16.97/2.99  
% 16.97/2.99  
% 16.97/2.99  % Terminating...
% 16.98/3.06  % Runner terminated.
% 16.98/3.07  % Zipperpin 1.5 exiting
%------------------------------------------------------------------------------