TSTP Solution File: GRP082-1 by Zipperpin---2.1.9999

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : Zipperpin---2.1.9999
% Problem  : GRP082-1 : TPTP v8.1.2. Bugfixed v2.3.0.
% Transfm  : NO INFORMATION
% Format   : NO INFORMATION
% Command  : python3 /export/starexec/sandbox/solver/bin/portfolio.lams.parallel.py %s %d /export/starexec/sandbox/tmp/tmp.iccmHfyyeI true

% Computer : n013.cluster.edu
% Model    : x86_64 x86_64
% CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 2.10GHz
% Memory   : 8042.1875MB
% OS       : Linux 3.10.0-693.el7.x86_64
% CPULimit : 300s
% WCLimit  : 300s
% DateTime : Thu Aug 31 01:49:51 EDT 2023

% Result   : Unsatisfiable 36.16s 5.90s
% Output   : Refutation 36.16s
% Verified : 
% SZS Type : -

% Comments : 
%------------------------------------------------------------------------------
%----WARNING: Could not form TPTP format derivation
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.06/0.11  % Problem  : GRP082-1 : TPTP v8.1.2. Bugfixed v2.3.0.
% 0.06/0.12  % Command  : python3 /export/starexec/sandbox/solver/bin/portfolio.lams.parallel.py %s %d /export/starexec/sandbox/tmp/tmp.iccmHfyyeI true
% 0.12/0.33  % Computer : n013.cluster.edu
% 0.12/0.33  % Model    : x86_64 x86_64
% 0.12/0.33  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.12/0.33  % Memory   : 8042.1875MB
% 0.12/0.33  % 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 : Mon Aug 28 20:04:01 EDT 2023
% 0.12/0.34  % CPUTime  : 
% 0.12/0.34  % Running portfolio for 300 s
% 0.12/0.34  % File         : /export/starexec/sandbox/benchmark/theBenchmark.p
% 0.12/0.34  % Number of cores: 8
% 0.12/0.34  % Python version: Python 3.6.8
% 0.12/0.34  % Running in FO mode
% 0.19/0.64  % Total configuration time : 435
% 0.19/0.64  % Estimated wc time : 1092
% 0.19/0.64  % Estimated cpu time (7 cpus) : 156.0
% 0.19/0.68  % /export/starexec/sandbox/solver/bin/fo/fo6_bce.sh running for 75s
% 0.19/0.71  % /export/starexec/sandbox/solver/bin/fo/fo3_bce.sh running for 75s
% 0.19/0.72  % /export/starexec/sandbox/solver/bin/fo/fo1_av.sh running for 75s
% 0.19/0.73  % /export/starexec/sandbox/solver/bin/fo/fo7.sh running for 63s
% 0.19/0.74  % /export/starexec/sandbox/solver/bin/fo/fo5.sh running for 50s
% 0.19/0.74  % /export/starexec/sandbox/solver/bin/fo/fo13.sh running for 50s
% 0.19/0.74  % /export/starexec/sandbox/solver/bin/fo/fo4.sh running for 50s
% 36.16/5.90  % Solved by fo/fo4.sh.
% 36.16/5.90  % done 760 iterations in 5.107s
% 36.16/5.90  % SZS status Theorem for '/export/starexec/sandbox/benchmark/theBenchmark.p'
% 36.16/5.90  % SZS output start Refutation
% 36.16/5.90  thf(a3_type, type, a3: $i).
% 36.16/5.90  thf(a1_type, type, a1: $i).
% 36.16/5.90  thf(multiply_type, type, multiply: $i > $i > $i).
% 36.16/5.90  thf(inverse_type, type, inverse: $i > $i).
% 36.16/5.90  thf(c3_type, type, c3: $i).
% 36.16/5.90  thf(a2_type, type, a2: $i).
% 36.16/5.90  thf(b2_type, type, b2: $i).
% 36.16/5.90  thf(double_divide_type, type, double_divide: $i > $i > $i).
% 36.16/5.90  thf(b1_type, type, b1: $i).
% 36.16/5.90  thf(b3_type, type, b3: $i).
% 36.16/5.90  thf(single_axiom, axiom,
% 36.16/5.90    (( double_divide @
% 36.16/5.90       ( inverse @ X ) @ 
% 36.16/5.90       ( inverse @
% 36.16/5.90         ( double_divide @
% 36.16/5.90           ( inverse @ ( double_divide @ X @ ( double_divide @ Y @ Z ) ) ) @ 
% 36.16/5.90           ( double_divide @ U @ ( double_divide @ Y @ U ) ) ) ) ) =
% 36.16/5.90     ( Z ))).
% 36.16/5.90  thf(zip_derived_cl0, plain,
% 36.16/5.90      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i]:
% 36.16/5.90         ((double_divide @ (inverse @ X1) @ 
% 36.16/5.90           (inverse @ 
% 36.16/5.90            (double_divide @ 
% 36.16/5.90             (inverse @ (double_divide @ X1 @ (double_divide @ X2 @ X0))) @ 
% 36.16/5.90             (double_divide @ X3 @ (double_divide @ X2 @ X3)))))
% 36.16/5.90           = (X0))),
% 36.16/5.90      inference('cnf', [status(esa)], [single_axiom])).
% 36.16/5.90  thf(zip_derived_cl0, plain,
% 36.16/5.90      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i]:
% 36.16/5.90         ((double_divide @ (inverse @ X1) @ 
% 36.16/5.90           (inverse @ 
% 36.16/5.90            (double_divide @ 
% 36.16/5.90             (inverse @ (double_divide @ X1 @ (double_divide @ X2 @ X0))) @ 
% 36.16/5.90             (double_divide @ X3 @ (double_divide @ X2 @ X3)))))
% 36.16/5.90           = (X0))),
% 36.16/5.90      inference('cnf', [status(esa)], [single_axiom])).
% 36.16/5.90  thf(zip_derived_cl4, plain,
% 36.16/5.90      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i, X4 : $i, X5 : $i]:
% 36.16/5.90         ((double_divide @ (inverse @ X5) @ 
% 36.16/5.90           (inverse @ 
% 36.16/5.90            (double_divide @ (inverse @ (double_divide @ X5 @ X0)) @ 
% 36.16/5.90             (double_divide @ X4 @ (double_divide @ (inverse @ X3) @ X4)))))
% 36.16/5.90           = (inverse @ 
% 36.16/5.90              (double_divide @ 
% 36.16/5.90               (inverse @ (double_divide @ X3 @ (double_divide @ X2 @ X0))) @ 
% 36.16/5.90               (double_divide @ X1 @ (double_divide @ X2 @ X1)))))),
% 36.16/5.90      inference('sup+', [status(thm)], [zip_derived_cl0, zip_derived_cl0])).
% 36.16/5.90  thf(zip_derived_cl0, plain,
% 36.16/5.90      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i]:
% 36.16/5.90         ((double_divide @ (inverse @ X1) @ 
% 36.16/5.90           (inverse @ 
% 36.16/5.90            (double_divide @ 
% 36.16/5.90             (inverse @ (double_divide @ X1 @ (double_divide @ X2 @ X0))) @ 
% 36.16/5.90             (double_divide @ X3 @ (double_divide @ X2 @ X3)))))
% 36.16/5.90           = (X0))),
% 36.16/5.90      inference('cnf', [status(esa)], [single_axiom])).
% 36.16/5.90  thf(zip_derived_cl42, plain,
% 36.16/5.90      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i]:
% 36.16/5.90         ((inverse @ 
% 36.16/5.90           (double_divide @ 
% 36.16/5.90            (inverse @ 
% 36.16/5.90             (double_divide @ X3 @ 
% 36.16/5.90              (double_divide @ X1 @ (double_divide @ (inverse @ X3) @ X2)))) @ 
% 36.16/5.90            (double_divide @ X0 @ (double_divide @ X1 @ X0))))
% 36.16/5.90           = (X2))),
% 36.16/5.90      inference('sup+', [status(thm)], [zip_derived_cl4, zip_derived_cl0])).
% 36.16/5.90  thf(zip_derived_cl0, plain,
% 36.16/5.90      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i]:
% 36.16/5.90         ((double_divide @ (inverse @ X1) @ 
% 36.16/5.90           (inverse @ 
% 36.16/5.90            (double_divide @ 
% 36.16/5.90             (inverse @ (double_divide @ X1 @ (double_divide @ X2 @ X0))) @ 
% 36.16/5.90             (double_divide @ X3 @ (double_divide @ X2 @ X3)))))
% 36.16/5.90           = (X0))),
% 36.16/5.90      inference('cnf', [status(esa)], [single_axiom])).
% 36.16/5.90  thf(zip_derived_cl130, plain,
% 36.16/5.90      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i, X4 : $i]:
% 36.16/5.90         ((double_divide @ 
% 36.16/5.90           (inverse @ 
% 36.16/5.90            (inverse @ 
% 36.16/5.90             (double_divide @ X4 @ 
% 36.16/5.90              (double_divide @ X2 @ (double_divide @ (inverse @ X4) @ X0))))) @ 
% 36.16/5.90           (inverse @ 
% 36.16/5.90            (double_divide @ X0 @ 
% 36.16/5.90             (double_divide @ X3 @ (double_divide @ X1 @ X3)))))
% 36.16/5.90           = (double_divide @ X2 @ X1))),
% 36.16/5.90      inference('sup+', [status(thm)], [zip_derived_cl42, zip_derived_cl0])).
% 36.16/5.90  thf(zip_derived_cl42, plain,
% 36.16/5.90      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i]:
% 36.16/5.90         ((inverse @ 
% 36.16/5.90           (double_divide @ 
% 36.16/5.90            (inverse @ 
% 36.16/5.90             (double_divide @ X3 @ 
% 36.16/5.90              (double_divide @ X1 @ (double_divide @ (inverse @ X3) @ X2)))) @ 
% 36.16/5.90            (double_divide @ X0 @ (double_divide @ X1 @ X0))))
% 36.16/5.90           = (X2))),
% 36.16/5.90      inference('sup+', [status(thm)], [zip_derived_cl4, zip_derived_cl0])).
% 36.16/5.90  thf(zip_derived_cl42, plain,
% 36.16/5.90      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i]:
% 36.16/5.90         ((inverse @ 
% 36.16/5.90           (double_divide @ 
% 36.16/5.90            (inverse @ 
% 36.16/5.90             (double_divide @ X3 @ 
% 36.16/5.90              (double_divide @ X1 @ (double_divide @ (inverse @ X3) @ X2)))) @ 
% 36.16/5.90            (double_divide @ X0 @ (double_divide @ X1 @ X0))))
% 36.16/5.90           = (X2))),
% 36.16/5.90      inference('sup+', [status(thm)], [zip_derived_cl4, zip_derived_cl0])).
% 36.16/5.90  thf(zip_derived_cl42, plain,
% 36.16/5.90      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i]:
% 36.16/5.90         ((inverse @ 
% 36.16/5.90           (double_divide @ 
% 36.16/5.90            (inverse @ 
% 36.16/5.90             (double_divide @ X3 @ 
% 36.16/5.90              (double_divide @ X1 @ (double_divide @ (inverse @ X3) @ X2)))) @ 
% 36.16/5.90            (double_divide @ X0 @ (double_divide @ X1 @ X0))))
% 36.16/5.90           = (X2))),
% 36.16/5.90      inference('sup+', [status(thm)], [zip_derived_cl4, zip_derived_cl0])).
% 36.16/5.90  thf(zip_derived_cl4, plain,
% 36.16/5.90      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i, X4 : $i, X5 : $i]:
% 36.16/5.90         ((double_divide @ (inverse @ X5) @ 
% 36.16/5.90           (inverse @ 
% 36.16/5.90            (double_divide @ (inverse @ (double_divide @ X5 @ X0)) @ 
% 36.16/5.90             (double_divide @ X4 @ (double_divide @ (inverse @ X3) @ X4)))))
% 36.16/5.90           = (inverse @ 
% 36.16/5.90              (double_divide @ 
% 36.16/5.90               (inverse @ (double_divide @ X3 @ (double_divide @ X2 @ X0))) @ 
% 36.16/5.90               (double_divide @ X1 @ (double_divide @ X2 @ X1)))))),
% 36.16/5.90      inference('sup+', [status(thm)], [zip_derived_cl0, zip_derived_cl0])).
% 36.16/5.90  thf(zip_derived_cl0, plain,
% 36.16/5.90      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i]:
% 36.16/5.90         ((double_divide @ (inverse @ X1) @ 
% 36.16/5.90           (inverse @ 
% 36.16/5.90            (double_divide @ 
% 36.16/5.90             (inverse @ (double_divide @ X1 @ (double_divide @ X2 @ X0))) @ 
% 36.16/5.90             (double_divide @ X3 @ (double_divide @ X2 @ X3)))))
% 36.16/5.90           = (X0))),
% 36.16/5.90      inference('cnf', [status(esa)], [single_axiom])).
% 36.16/5.90  thf(zip_derived_cl29, plain,
% 36.16/5.90      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i]:
% 36.16/5.90         ((double_divide @ (inverse @ X1) @ 
% 36.16/5.90           (double_divide @ (inverse @ X3) @ 
% 36.16/5.90            (inverse @ 
% 36.16/5.90             (double_divide @ (inverse @ (double_divide @ X3 @ X2)) @ 
% 36.16/5.90              (double_divide @ X0 @ (double_divide @ (inverse @ X1) @ X0))))))
% 36.16/5.90           = (X2))),
% 36.16/5.90      inference('sup+', [status(thm)], [zip_derived_cl4, zip_derived_cl0])).
% 36.16/5.90  thf(zip_derived_cl188, plain,
% 36.16/5.90      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i, X4 : $i, X5 : $i, X6 : $i]:
% 36.16/5.90         ((double_divide @ 
% 36.16/5.90           (inverse @ 
% 36.16/5.90            (double_divide @ 
% 36.16/5.90             (inverse @ 
% 36.16/5.90              (double_divide @ X5 @ 
% 36.16/5.90               (double_divide @ X4 @ (double_divide @ (inverse @ X5) @ X0)))) @ 
% 36.16/5.90             (double_divide @ X3 @ (double_divide @ X4 @ X3)))) @ 
% 36.16/5.90           (double_divide @ (inverse @ X6) @ 
% 36.16/5.90            (inverse @ 
% 36.16/5.90             (double_divide @ (inverse @ (double_divide @ X6 @ X1)) @ 
% 36.16/5.90              (double_divide @ X2 @ (double_divide @ X0 @ X2))))))
% 36.16/5.90           = (X1))),
% 36.16/5.90      inference('sup+', [status(thm)], [zip_derived_cl42, zip_derived_cl29])).
% 36.16/5.90  thf(zip_derived_cl42, plain,
% 36.16/5.90      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i]:
% 36.16/5.90         ((inverse @ 
% 36.16/5.90           (double_divide @ 
% 36.16/5.90            (inverse @ 
% 36.16/5.90             (double_divide @ X3 @ 
% 36.16/5.90              (double_divide @ X1 @ (double_divide @ (inverse @ X3) @ X2)))) @ 
% 36.16/5.90            (double_divide @ X0 @ (double_divide @ X1 @ X0))))
% 36.16/5.90           = (X2))),
% 36.16/5.90      inference('sup+', [status(thm)], [zip_derived_cl4, zip_derived_cl0])).
% 36.16/5.90  thf(zip_derived_cl209, plain,
% 36.16/5.90      (![X0 : $i, X1 : $i, X2 : $i, X6 : $i]:
% 36.16/5.90         ((double_divide @ X0 @ 
% 36.16/5.90           (double_divide @ (inverse @ X6) @ 
% 36.16/5.90            (inverse @ 
% 36.16/5.90             (double_divide @ (inverse @ (double_divide @ X6 @ X1)) @ 
% 36.16/5.90              (double_divide @ X2 @ (double_divide @ X0 @ X2))))))
% 36.16/5.90           = (X1))),
% 36.16/5.90      inference('demod', [status(thm)], [zip_derived_cl188, zip_derived_cl42])).
% 36.16/5.90  thf(zip_derived_cl42, plain,
% 36.16/5.90      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i]:
% 36.16/5.90         ((inverse @ 
% 36.16/5.90           (double_divide @ 
% 36.16/5.90            (inverse @ 
% 36.16/5.90             (double_divide @ X3 @ 
% 36.16/5.90              (double_divide @ X1 @ (double_divide @ (inverse @ X3) @ X2)))) @ 
% 36.16/5.90            (double_divide @ X0 @ (double_divide @ X1 @ X0))))
% 36.16/5.90           = (X2))),
% 36.16/5.90      inference('sup+', [status(thm)], [zip_derived_cl4, zip_derived_cl0])).
% 36.16/5.90  thf(zip_derived_cl230, plain,
% 36.16/5.90      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i, X4 : $i]:
% 36.16/5.90         ((inverse @ 
% 36.16/5.90           (double_divide @ (inverse @ (double_divide @ X3 @ X0)) @ 
% 36.16/5.90            (double_divide @ X4 @ (double_divide @ X2 @ X4))))
% 36.16/5.90           = (inverse @ 
% 36.16/5.90              (double_divide @ (inverse @ (double_divide @ X3 @ X0)) @ 
% 36.16/5.90               (double_divide @ X1 @ (double_divide @ X2 @ X1)))))),
% 36.16/5.90      inference('sup+', [status(thm)], [zip_derived_cl209, zip_derived_cl42])).
% 36.16/5.90  thf(zip_derived_cl369, plain,
% 36.16/5.90      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i, X4 : $i, X5 : $i, X6 : $i]:
% 36.16/5.90         ((inverse @ 
% 36.16/5.90           (double_divide @ X0 @ 
% 36.16/5.90            (double_divide @ X6 @ (double_divide @ X2 @ X6))))
% 36.16/5.90           = (inverse @ 
% 36.16/5.90              (double_divide @ 
% 36.16/5.90               (inverse @ 
% 36.16/5.90                (double_divide @ 
% 36.16/5.90                 (inverse @ 
% 36.16/5.90                  (double_divide @ X5 @ 
% 36.16/5.90                   (double_divide @ X4 @ (double_divide @ (inverse @ X5) @ X0)))) @ 
% 36.16/5.90                 (double_divide @ X3 @ (double_divide @ X4 @ X3)))) @ 
% 36.16/5.90               (double_divide @ X1 @ (double_divide @ X2 @ X1)))))),
% 36.16/5.90      inference('sup+', [status(thm)], [zip_derived_cl42, zip_derived_cl230])).
% 36.16/5.90  thf(zip_derived_cl42, plain,
% 36.16/5.90      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i]:
% 36.16/5.90         ((inverse @ 
% 36.16/5.90           (double_divide @ 
% 36.16/5.90            (inverse @ 
% 36.16/5.90             (double_divide @ X3 @ 
% 36.16/5.90              (double_divide @ X1 @ (double_divide @ (inverse @ X3) @ X2)))) @ 
% 36.16/5.90            (double_divide @ X0 @ (double_divide @ X1 @ X0))))
% 36.16/5.90           = (X2))),
% 36.16/5.90      inference('sup+', [status(thm)], [zip_derived_cl4, zip_derived_cl0])).
% 36.16/5.90  thf(zip_derived_cl396, plain,
% 36.16/5.90      (![X0 : $i, X1 : $i, X2 : $i, X6 : $i]:
% 36.16/5.90         ((inverse @ 
% 36.16/5.90           (double_divide @ X0 @ 
% 36.16/5.90            (double_divide @ X6 @ (double_divide @ X2 @ X6))))
% 36.16/5.90           = (inverse @ 
% 36.16/5.90              (double_divide @ X0 @ 
% 36.16/5.90               (double_divide @ X1 @ (double_divide @ X2 @ X1)))))),
% 36.16/5.90      inference('demod', [status(thm)], [zip_derived_cl369, zip_derived_cl42])).
% 36.16/5.90  thf(zip_derived_cl42, plain,
% 36.16/5.90      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i]:
% 36.16/5.90         ((inverse @ 
% 36.16/5.90           (double_divide @ 
% 36.16/5.90            (inverse @ 
% 36.16/5.90             (double_divide @ X3 @ 
% 36.16/5.90              (double_divide @ X1 @ (double_divide @ (inverse @ X3) @ X2)))) @ 
% 36.16/5.90            (double_divide @ X0 @ (double_divide @ X1 @ X0))))
% 36.16/5.90           = (X2))),
% 36.16/5.90      inference('sup+', [status(thm)], [zip_derived_cl4, zip_derived_cl0])).
% 36.16/5.90  thf(zip_derived_cl421, plain,
% 36.16/5.90      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i]:
% 36.16/5.90         ((inverse @ 
% 36.16/5.90           (double_divide @ 
% 36.16/5.90            (inverse @ 
% 36.16/5.90             (double_divide @ X1 @ 
% 36.16/5.90              (double_divide @ X0 @ (double_divide @ (inverse @ X1) @ X0)))) @ 
% 36.16/5.90            (double_divide @ X3 @ (double_divide @ X2 @ X3))))
% 36.16/5.90           = (X2))),
% 36.16/5.90      inference('sup+', [status(thm)], [zip_derived_cl396, zip_derived_cl42])).
% 36.16/5.90  thf(zip_derived_cl209, plain,
% 36.16/5.90      (![X0 : $i, X1 : $i, X2 : $i, X6 : $i]:
% 36.16/5.90         ((double_divide @ X0 @ 
% 36.16/5.90           (double_divide @ (inverse @ X6) @ 
% 36.16/5.90            (inverse @ 
% 36.16/5.90             (double_divide @ (inverse @ (double_divide @ X6 @ X1)) @ 
% 36.16/5.90              (double_divide @ X2 @ (double_divide @ X0 @ X2))))))
% 36.16/5.90           = (X1))),
% 36.16/5.90      inference('demod', [status(thm)], [zip_derived_cl188, zip_derived_cl42])).
% 36.16/5.90  thf(zip_derived_cl666, plain,
% 36.16/5.90      (![X0 : $i, X1 : $i, X2 : $i]:
% 36.16/5.90         ((double_divide @ X0 @ (double_divide @ (inverse @ X2) @ X0))
% 36.16/5.90           = (double_divide @ X1 @ (double_divide @ (inverse @ X2) @ X1)))),
% 36.16/5.90      inference('sup+', [status(thm)], [zip_derived_cl421, zip_derived_cl209])).
% 36.16/5.90  thf(zip_derived_cl829, plain,
% 36.16/5.90      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i, X4 : $i, X5 : $i]:
% 36.16/5.90         ((double_divide @ X5 @ (double_divide @ X0 @ X5))
% 36.16/5.90           = (double_divide @ X1 @ 
% 36.16/5.90              (double_divide @ 
% 36.16/5.90               (inverse @ 
% 36.16/5.90                (double_divide @ 
% 36.16/5.90                 (inverse @ 
% 36.16/5.90                  (double_divide @ X4 @ 
% 36.16/5.90                   (double_divide @ X3 @ (double_divide @ (inverse @ X4) @ X0)))) @ 
% 36.16/5.90                 (double_divide @ X2 @ (double_divide @ X3 @ X2)))) @ 
% 36.16/5.90               X1)))),
% 36.16/5.90      inference('sup+', [status(thm)], [zip_derived_cl42, zip_derived_cl666])).
% 36.16/5.90  thf(zip_derived_cl42, plain,
% 36.16/5.90      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i]:
% 36.16/5.90         ((inverse @ 
% 36.16/5.90           (double_divide @ 
% 36.16/5.90            (inverse @ 
% 36.16/5.90             (double_divide @ X3 @ 
% 36.16/5.90              (double_divide @ X1 @ (double_divide @ (inverse @ X3) @ X2)))) @ 
% 36.16/5.90            (double_divide @ X0 @ (double_divide @ X1 @ X0))))
% 36.16/5.90           = (X2))),
% 36.16/5.90      inference('sup+', [status(thm)], [zip_derived_cl4, zip_derived_cl0])).
% 36.16/5.90  thf(zip_derived_cl851, plain,
% 36.16/5.90      (![X0 : $i, X1 : $i, X5 : $i]:
% 36.16/5.90         ((double_divide @ X5 @ (double_divide @ X0 @ X5))
% 36.16/5.90           = (double_divide @ X1 @ (double_divide @ X0 @ X1)))),
% 36.16/5.90      inference('demod', [status(thm)], [zip_derived_cl829, zip_derived_cl42])).
% 36.16/5.90  thf(zip_derived_cl209, plain,
% 36.16/5.90      (![X0 : $i, X1 : $i, X2 : $i, X6 : $i]:
% 36.16/5.90         ((double_divide @ X0 @ 
% 36.16/5.90           (double_divide @ (inverse @ X6) @ 
% 36.16/5.90            (inverse @ 
% 36.16/5.90             (double_divide @ (inverse @ (double_divide @ X6 @ X1)) @ 
% 36.16/5.90              (double_divide @ X2 @ (double_divide @ X0 @ X2))))))
% 36.16/5.90           = (X1))),
% 36.16/5.90      inference('demod', [status(thm)], [zip_derived_cl188, zip_derived_cl42])).
% 36.16/5.90  thf(zip_derived_cl851, plain,
% 36.16/5.90      (![X0 : $i, X1 : $i, X5 : $i]:
% 36.16/5.90         ((double_divide @ X5 @ (double_divide @ X0 @ X5))
% 36.16/5.90           = (double_divide @ X1 @ (double_divide @ X0 @ X1)))),
% 36.16/5.90      inference('demod', [status(thm)], [zip_derived_cl829, zip_derived_cl42])).
% 36.16/5.90  thf(zip_derived_cl0, plain,
% 36.16/5.90      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i]:
% 36.16/5.90         ((double_divide @ (inverse @ X1) @ 
% 36.16/5.90           (inverse @ 
% 36.16/5.90            (double_divide @ 
% 36.16/5.90             (inverse @ (double_divide @ X1 @ (double_divide @ X2 @ X0))) @ 
% 36.16/5.90             (double_divide @ X3 @ (double_divide @ X2 @ X3)))))
% 36.16/5.90           = (X0))),
% 36.16/5.90      inference('cnf', [status(esa)], [single_axiom])).
% 36.16/5.90  thf(zip_derived_cl883, plain,
% 36.16/5.90      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i]:
% 36.16/5.90         ((double_divide @ (inverse @ X2) @ 
% 36.16/5.90           (inverse @ 
% 36.16/5.90            (double_divide @ 
% 36.16/5.90             (inverse @ (double_divide @ X0 @ (double_divide @ X1 @ X0))) @ 
% 36.16/5.90             (double_divide @ X3 @ (double_divide @ X1 @ X3)))))
% 36.16/5.90           = (X2))),
% 36.16/5.90      inference('sup+', [status(thm)], [zip_derived_cl851, zip_derived_cl0])).
% 36.16/5.90  thf(zip_derived_cl130, plain,
% 36.16/5.90      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i, X4 : $i]:
% 36.16/5.90         ((double_divide @ 
% 36.16/5.90           (inverse @ 
% 36.16/5.90            (inverse @ 
% 36.16/5.90             (double_divide @ X4 @ 
% 36.16/5.90              (double_divide @ X2 @ (double_divide @ (inverse @ X4) @ X0))))) @ 
% 36.16/5.90           (inverse @ 
% 36.16/5.90            (double_divide @ X0 @ 
% 36.16/5.90             (double_divide @ X3 @ (double_divide @ X1 @ X3)))))
% 36.16/5.90           = (double_divide @ X2 @ X1))),
% 36.16/5.90      inference('sup+', [status(thm)], [zip_derived_cl42, zip_derived_cl0])).
% 36.16/5.90  thf(zip_derived_cl1377, plain,
% 36.16/5.90      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i]:
% 36.16/5.90         ((inverse @ 
% 36.16/5.90           (double_divide @ X2 @ 
% 36.16/5.90            (double_divide @ X3 @ 
% 36.16/5.90             (double_divide @ (inverse @ X2) @ 
% 36.16/5.90              (inverse @ (double_divide @ X0 @ (double_divide @ X1 @ X0)))))))
% 36.16/5.90           = (double_divide @ X3 @ X1))),
% 36.16/5.90      inference('sup+', [status(thm)], [zip_derived_cl883, zip_derived_cl130])).
% 36.16/5.90  thf(zip_derived_cl421, plain,
% 36.16/5.90      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i]:
% 36.16/5.90         ((inverse @ 
% 36.16/5.90           (double_divide @ 
% 36.16/5.90            (inverse @ 
% 36.16/5.90             (double_divide @ X1 @ 
% 36.16/5.90              (double_divide @ X0 @ (double_divide @ (inverse @ X1) @ X0)))) @ 
% 36.16/5.90            (double_divide @ X3 @ (double_divide @ X2 @ X3))))
% 36.16/5.90           = (X2))),
% 36.16/5.90      inference('sup+', [status(thm)], [zip_derived_cl396, zip_derived_cl42])).
% 36.16/5.90  thf(zip_derived_cl1739, plain,
% 36.16/5.90      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i]:
% 36.16/5.90         ((inverse @ 
% 36.16/5.90           (double_divide @ 
% 36.16/5.90            (double_divide @ 
% 36.16/5.90             (inverse @ (double_divide @ X1 @ (double_divide @ X0 @ X1))) @ X0) @ 
% 36.16/5.90            (double_divide @ X3 @ (double_divide @ X2 @ X3))))
% 36.16/5.90           = (X2))),
% 36.16/5.90      inference('sup+', [status(thm)], [zip_derived_cl1377, zip_derived_cl421])).
% 36.16/5.90  thf(zip_derived_cl1377, plain,
% 36.16/5.90      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i]:
% 36.16/5.90         ((inverse @ 
% 36.16/5.90           (double_divide @ X2 @ 
% 36.16/5.90            (double_divide @ X3 @ 
% 36.16/5.90             (double_divide @ (inverse @ X2) @ 
% 36.16/5.90              (inverse @ (double_divide @ X0 @ (double_divide @ X1 @ X0)))))))
% 36.16/5.90           = (double_divide @ X3 @ X1))),
% 36.16/5.90      inference('sup+', [status(thm)], [zip_derived_cl883, zip_derived_cl130])).
% 36.16/5.90  thf(zip_derived_cl1842, plain,
% 36.16/5.90      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i]:
% 36.16/5.90         ((inverse @ 
% 36.16/5.90           (double_divide @ 
% 36.16/5.90            (inverse @ (double_divide @ X1 @ (double_divide @ X0 @ X1))) @ X0))
% 36.16/5.90           = (double_divide @ 
% 36.16/5.90              (inverse @ (double_divide @ X3 @ (double_divide @ X2 @ X3))) @ X2))),
% 36.16/5.90      inference('sup+', [status(thm)], [zip_derived_cl1739, zip_derived_cl1377])).
% 36.16/5.90  thf(zip_derived_cl209, plain,
% 36.16/5.90      (![X0 : $i, X1 : $i, X2 : $i, X6 : $i]:
% 36.16/5.90         ((double_divide @ X0 @ 
% 36.16/5.90           (double_divide @ (inverse @ X6) @ 
% 36.16/5.90            (inverse @ 
% 36.16/5.90             (double_divide @ (inverse @ (double_divide @ X6 @ X1)) @ 
% 36.16/5.90              (double_divide @ X2 @ (double_divide @ X0 @ X2))))))
% 36.16/5.90           = (X1))),
% 36.16/5.90      inference('demod', [status(thm)], [zip_derived_cl188, zip_derived_cl42])).
% 36.16/5.90  thf(zip_derived_cl3171, plain,
% 36.16/5.90      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i, X4 : $i, X5 : $i]:
% 36.16/5.90         ((double_divide @ X4 @ 
% 36.16/5.90           (double_divide @ 
% 36.16/5.90            (inverse @ 
% 36.16/5.90             (inverse @ (double_divide @ X5 @ (double_divide @ X2 @ X5)))) @ 
% 36.16/5.90            (inverse @ 
% 36.16/5.90             (double_divide @ 
% 36.16/5.90              (double_divide @ 
% 36.16/5.90               (inverse @ (double_divide @ X1 @ (double_divide @ X0 @ X1))) @ 
% 36.16/5.90               X0) @ 
% 36.16/5.90              (double_divide @ X3 @ (double_divide @ X4 @ X3))))))
% 36.16/5.90           = (X2))),
% 36.16/5.90      inference('sup+', [status(thm)], [zip_derived_cl1842, zip_derived_cl209])).
% 36.16/5.90  thf(zip_derived_cl1739, plain,
% 36.16/5.90      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i]:
% 36.16/5.90         ((inverse @ 
% 36.16/5.90           (double_divide @ 
% 36.16/5.90            (double_divide @ 
% 36.16/5.90             (inverse @ (double_divide @ X1 @ (double_divide @ X0 @ X1))) @ X0) @ 
% 36.16/5.90            (double_divide @ X3 @ (double_divide @ X2 @ X3))))
% 36.16/5.90           = (X2))),
% 36.16/5.90      inference('sup+', [status(thm)], [zip_derived_cl1377, zip_derived_cl421])).
% 36.16/5.90  thf(zip_derived_cl3282, plain,
% 36.16/5.90      (![X2 : $i, X4 : $i, X5 : $i]:
% 36.16/5.90         ((double_divide @ X4 @ 
% 36.16/5.90           (double_divide @ 
% 36.16/5.90            (inverse @ 
% 36.16/5.90             (inverse @ (double_divide @ X5 @ (double_divide @ X2 @ X5)))) @ 
% 36.16/5.90            X4))
% 36.16/5.90           = (X2))),
% 36.16/5.90      inference('demod', [status(thm)],
% 36.16/5.90                [zip_derived_cl3171, zip_derived_cl1739])).
% 36.16/5.90  thf(zip_derived_cl0, plain,
% 36.16/5.90      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i]:
% 36.16/5.90         ((double_divide @ (inverse @ X1) @ 
% 36.16/5.90           (inverse @ 
% 36.16/5.90            (double_divide @ 
% 36.16/5.90             (inverse @ (double_divide @ X1 @ (double_divide @ X2 @ X0))) @ 
% 36.16/5.90             (double_divide @ X3 @ (double_divide @ X2 @ X3)))))
% 36.16/5.90           = (X0))),
% 36.16/5.90      inference('cnf', [status(esa)], [single_axiom])).
% 36.16/5.90  thf(zip_derived_cl3345, plain,
% 36.16/5.90      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i]:
% 36.16/5.90         ((double_divide @ (inverse @ X1) @ 
% 36.16/5.90           (inverse @ 
% 36.16/5.90            (double_divide @ (inverse @ X0) @ 
% 36.16/5.90             (double_divide @ X2 @ 
% 36.16/5.90              (double_divide @ 
% 36.16/5.90               (inverse @ 
% 36.16/5.90                (inverse @ (double_divide @ X3 @ (double_divide @ X0 @ X3)))) @ 
% 36.16/5.90               X2)))))
% 36.16/5.90           = (X1))),
% 36.16/5.90      inference('sup+', [status(thm)], [zip_derived_cl3282, zip_derived_cl0])).
% 36.16/5.90  thf(zip_derived_cl3282, plain,
% 36.16/5.90      (![X2 : $i, X4 : $i, X5 : $i]:
% 36.16/5.90         ((double_divide @ X4 @ 
% 36.16/5.90           (double_divide @ 
% 36.16/5.90            (inverse @ 
% 36.16/5.90             (inverse @ (double_divide @ X5 @ (double_divide @ X2 @ X5)))) @ 
% 36.16/5.90            X4))
% 36.16/5.90           = (X2))),
% 36.16/5.90      inference('demod', [status(thm)],
% 36.16/5.90                [zip_derived_cl3171, zip_derived_cl1739])).
% 36.16/5.90  thf(zip_derived_cl3471, plain,
% 36.16/5.90      (![X0 : $i, X1 : $i]:
% 36.16/5.90         ((double_divide @ (inverse @ X1) @ 
% 36.16/5.90           (inverse @ (double_divide @ (inverse @ X0) @ X0))) = (X1))),
% 36.16/5.90      inference('demod', [status(thm)],
% 36.16/5.90                [zip_derived_cl3345, zip_derived_cl3282])).
% 36.16/5.90  thf(zip_derived_cl851, plain,
% 36.16/5.90      (![X0 : $i, X1 : $i, X5 : $i]:
% 36.16/5.90         ((double_divide @ X5 @ (double_divide @ X0 @ X5))
% 36.16/5.90           = (double_divide @ X1 @ (double_divide @ X0 @ X1)))),
% 36.16/5.90      inference('demod', [status(thm)], [zip_derived_cl829, zip_derived_cl42])).
% 36.16/5.90  thf(zip_derived_cl3499, plain,
% 36.16/5.90      (![X0 : $i, X1 : $i, X2 : $i]:
% 36.16/5.90         ((double_divide @ X2 @ (double_divide @ (inverse @ X0) @ X2))
% 36.16/5.90           = (double_divide @ 
% 36.16/5.90              (inverse @ (double_divide @ (inverse @ X1) @ X1)) @ X0))),
% 36.16/5.90      inference('sup+', [status(thm)], [zip_derived_cl3471, zip_derived_cl851])).
% 36.16/5.90  thf(zip_derived_cl1377, plain,
% 36.16/5.90      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i]:
% 36.16/5.90         ((inverse @ 
% 36.16/5.90           (double_divide @ X2 @ 
% 36.16/5.90            (double_divide @ X3 @ 
% 36.16/5.90             (double_divide @ (inverse @ X2) @ 
% 36.16/5.90              (inverse @ (double_divide @ X0 @ (double_divide @ X1 @ X0)))))))
% 36.16/5.90           = (double_divide @ X3 @ X1))),
% 36.16/5.90      inference('sup+', [status(thm)], [zip_derived_cl883, zip_derived_cl130])).
% 36.16/5.90  thf(zip_derived_cl4626, plain,
% 36.16/5.90      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i, X4 : $i]:
% 36.16/5.90         ((inverse @ 
% 36.16/5.90           (double_divide @ (double_divide @ (inverse @ X4) @ X4) @ 
% 36.16/5.90            (double_divide @ X3 @ 
% 36.16/5.90             (double_divide @ X0 @ 
% 36.16/5.90              (double_divide @ 
% 36.16/5.90               (inverse @ 
% 36.16/5.90                (inverse @ (double_divide @ X1 @ (double_divide @ X2 @ X1)))) @ 
% 36.16/5.90               X0)))))
% 36.16/5.90           = (double_divide @ X3 @ X2))),
% 36.16/5.90      inference('sup+', [status(thm)], [zip_derived_cl3499, zip_derived_cl1377])).
% 36.16/5.90  thf(zip_derived_cl3282, plain,
% 36.16/5.90      (![X2 : $i, X4 : $i, X5 : $i]:
% 36.16/5.90         ((double_divide @ X4 @ 
% 36.16/5.90           (double_divide @ 
% 36.16/5.90            (inverse @ 
% 36.16/5.90             (inverse @ (double_divide @ X5 @ (double_divide @ X2 @ X5)))) @ 
% 36.16/5.90            X4))
% 36.16/5.90           = (X2))),
% 36.16/5.90      inference('demod', [status(thm)],
% 36.16/5.90                [zip_derived_cl3171, zip_derived_cl1739])).
% 36.16/5.90  thf(zip_derived_cl4884, plain,
% 36.16/5.90      (![X2 : $i, X3 : $i, X4 : $i]:
% 36.16/5.90         ((inverse @ 
% 36.16/5.90           (double_divide @ (double_divide @ (inverse @ X4) @ X4) @ 
% 36.16/5.90            (double_divide @ X3 @ X2)))
% 36.16/5.90           = (double_divide @ X3 @ X2))),
% 36.16/5.90      inference('demod', [status(thm)],
% 36.16/5.90                [zip_derived_cl4626, zip_derived_cl3282])).
% 36.16/5.90  thf(zip_derived_cl5442, plain,
% 36.16/5.90      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i, X4 : $i]:
% 36.16/5.90         ((inverse @ 
% 36.16/5.90           (double_divide @ (double_divide @ (inverse @ X4) @ X4) @ X0))
% 36.16/5.90           = (double_divide @ X2 @ 
% 36.16/5.90              (double_divide @ (inverse @ X3) @ 
% 36.16/5.90               (inverse @ 
% 36.16/5.90                (double_divide @ (inverse @ (double_divide @ X3 @ X0)) @ 
% 36.16/5.90                 (double_divide @ X1 @ (double_divide @ X2 @ X1)))))))),
% 36.16/5.90      inference('sup+', [status(thm)], [zip_derived_cl209, zip_derived_cl4884])).
% 36.16/5.90  thf(zip_derived_cl209, plain,
% 36.16/5.90      (![X0 : $i, X1 : $i, X2 : $i, X6 : $i]:
% 36.16/5.90         ((double_divide @ X0 @ 
% 36.16/5.90           (double_divide @ (inverse @ X6) @ 
% 36.16/5.90            (inverse @ 
% 36.16/5.90             (double_divide @ (inverse @ (double_divide @ X6 @ X1)) @ 
% 36.16/5.90              (double_divide @ X2 @ (double_divide @ X0 @ X2))))))
% 36.16/5.90           = (X1))),
% 36.16/5.90      inference('demod', [status(thm)], [zip_derived_cl188, zip_derived_cl42])).
% 36.16/5.90  thf(zip_derived_cl5495, plain,
% 36.16/5.90      (![X0 : $i, X4 : $i]:
% 36.16/5.90         ((inverse @ 
% 36.16/5.90           (double_divide @ (double_divide @ (inverse @ X4) @ X4) @ X0)) = (
% 36.16/5.90           X0))),
% 36.16/5.90      inference('demod', [status(thm)], [zip_derived_cl5442, zip_derived_cl209])).
% 36.16/5.90  thf(zip_derived_cl5628, plain,
% 36.16/5.90      (![X0 : $i, X1 : $i, X2 : $i]:
% 36.16/5.90         ((inverse @ (double_divide @ X0 @ (double_divide @ X1 @ X0)))
% 36.16/5.90           = (double_divide @ X1 @ (double_divide @ (inverse @ X2) @ X2)))),
% 36.16/5.90      inference('sup+', [status(thm)], [zip_derived_cl851, zip_derived_cl5495])).
% 36.16/5.90  thf(zip_derived_cl3282, plain,
% 36.16/5.90      (![X2 : $i, X4 : $i, X5 : $i]:
% 36.16/5.90         ((double_divide @ X4 @ 
% 36.16/5.90           (double_divide @ 
% 36.16/5.90            (inverse @ 
% 36.16/5.90             (inverse @ (double_divide @ X5 @ (double_divide @ X2 @ X5)))) @ 
% 36.16/5.90            X4))
% 36.16/5.90           = (X2))),
% 36.16/5.90      inference('demod', [status(thm)],
% 36.16/5.90                [zip_derived_cl3171, zip_derived_cl1739])).
% 36.16/5.90  thf(zip_derived_cl5835, plain,
% 36.16/5.90      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i]:
% 36.16/5.90         ((double_divide @ (double_divide @ (inverse @ X3) @ X3) @ 
% 36.16/5.90           (inverse @ 
% 36.16/5.90            (double_divide @ X0 @ 
% 36.16/5.90             (double_divide @ 
% 36.16/5.90              (inverse @ 
% 36.16/5.90               (inverse @ (double_divide @ X1 @ (double_divide @ X2 @ X1)))) @ 
% 36.16/5.90              X0))))
% 36.16/5.90           = (X2))),
% 36.16/5.90      inference('sup+', [status(thm)], [zip_derived_cl5628, zip_derived_cl3282])).
% 36.16/5.90  thf(zip_derived_cl3282, plain,
% 36.16/5.90      (![X2 : $i, X4 : $i, X5 : $i]:
% 36.16/5.90         ((double_divide @ X4 @ 
% 36.16/5.90           (double_divide @ 
% 36.16/5.90            (inverse @ 
% 36.16/5.90             (inverse @ (double_divide @ X5 @ (double_divide @ X2 @ X5)))) @ 
% 36.16/5.90            X4))
% 36.16/5.90           = (X2))),
% 36.16/5.90      inference('demod', [status(thm)],
% 36.16/5.90                [zip_derived_cl3171, zip_derived_cl1739])).
% 36.16/5.90  thf(zip_derived_cl6034, plain,
% 36.16/5.90      (![X2 : $i, X3 : $i]:
% 36.16/5.90         ((double_divide @ (double_divide @ (inverse @ X3) @ X3) @ 
% 36.16/5.90           (inverse @ X2)) = (X2))),
% 36.16/5.90      inference('demod', [status(thm)],
% 36.16/5.90                [zip_derived_cl5835, zip_derived_cl3282])).
% 36.16/5.90  thf(zip_derived_cl7130, plain,
% 36.16/5.90      (![X0 : $i, X1 : $i]:
% 36.16/5.90         ((double_divide @ (double_divide @ X0 @ (inverse @ X0)) @ 
% 36.16/5.90           (inverse @ X1)) = (X1))),
% 36.16/5.90      inference('sup+', [status(thm)], [zip_derived_cl130, zip_derived_cl6034])).
% 36.16/5.90  thf(zip_derived_cl3471, plain,
% 36.16/5.90      (![X0 : $i, X1 : $i]:
% 36.16/5.90         ((double_divide @ (inverse @ X1) @ 
% 36.16/5.90           (inverse @ (double_divide @ (inverse @ X0) @ X0))) = (X1))),
% 36.16/5.90      inference('demod', [status(thm)],
% 36.16/5.90                [zip_derived_cl3345, zip_derived_cl3282])).
% 36.16/5.90  thf(zip_derived_cl5495, plain,
% 36.16/5.90      (![X0 : $i, X4 : $i]:
% 36.16/5.90         ((inverse @ 
% 36.16/5.90           (double_divide @ (double_divide @ (inverse @ X4) @ X4) @ X0)) = (
% 36.16/5.90           X0))),
% 36.16/5.90      inference('demod', [status(thm)], [zip_derived_cl5442, zip_derived_cl209])).
% 36.16/5.90  thf(zip_derived_cl5637, plain,
% 36.16/5.90      (![X0 : $i, X1 : $i]:
% 36.16/5.90         ((inverse @ 
% 36.16/5.90           (double_divide @ 
% 36.16/5.90            (inverse @ (double_divide @ (inverse @ X0) @ X0)) @ X1))
% 36.16/5.90           = (X1))),
% 36.16/5.90      inference('sup+', [status(thm)], [zip_derived_cl3471, zip_derived_cl5495])).
% 36.16/5.90  thf(zip_derived_cl3471, plain,
% 36.16/5.90      (![X0 : $i, X1 : $i]:
% 36.16/5.90         ((double_divide @ (inverse @ X1) @ 
% 36.16/5.90           (inverse @ (double_divide @ (inverse @ X0) @ X0))) = (X1))),
% 36.16/5.90      inference('demod', [status(thm)],
% 36.16/5.90                [zip_derived_cl3345, zip_derived_cl3282])).
% 36.16/5.90  thf(zip_derived_cl7854, plain,
% 36.16/5.90      (![X0 : $i, X1 : $i]:
% 36.16/5.90         ((double_divide @ (inverse @ X1) @ 
% 36.16/5.90           (double_divide @ (inverse @ X0) @ X0)) = (X1))),
% 36.16/5.90      inference('sup+', [status(thm)], [zip_derived_cl5637, zip_derived_cl3471])).
% 36.16/5.90  thf(zip_derived_cl3282, plain,
% 36.16/5.90      (![X2 : $i, X4 : $i, X5 : $i]:
% 36.16/5.90         ((double_divide @ X4 @ 
% 36.16/5.90           (double_divide @ 
% 36.16/5.90            (inverse @ 
% 36.16/5.90             (inverse @ (double_divide @ X5 @ (double_divide @ X2 @ X5)))) @ 
% 36.16/5.90            X4))
% 36.16/5.90           = (X2))),
% 36.16/5.90      inference('demod', [status(thm)],
% 36.16/5.90                [zip_derived_cl3171, zip_derived_cl1739])).
% 36.16/5.90  thf(zip_derived_cl8133, plain,
% 36.16/5.90      (![X0 : $i, X1 : $i]:
% 36.16/5.90         ((double_divide @ X0 @ (double_divide @ X1 @ X0)) = (X1))),
% 36.16/5.90      inference('sup+', [status(thm)], [zip_derived_cl7854, zip_derived_cl3282])).
% 36.16/5.90  thf(zip_derived_cl8331, plain,
% 36.16/5.90      (![X0 : $i, X1 : $i]:
% 36.16/5.90         ((double_divide @ (inverse @ X0) @ X0)
% 36.16/5.90           = (double_divide @ X1 @ (inverse @ X1)))),
% 36.16/5.90      inference('sup+', [status(thm)], [zip_derived_cl7130, zip_derived_cl8133])).
% 36.16/5.90  thf(prove_these_axioms, conjecture,
% 36.16/5.90    (~( ( ( multiply @ ( multiply @ a3 @ b3 ) @ c3 ) !=
% 36.16/5.90          ( multiply @ a3 @ ( multiply @ b3 @ c3 ) ) ) | 
% 36.16/5.90        ( ( multiply @ ( multiply @ ( inverse @ b2 ) @ b2 ) @ a2 ) != ( a2 ) ) | 
% 36.16/5.90        ( ( multiply @ ( inverse @ a1 ) @ a1 ) !=
% 36.16/5.90          ( multiply @ ( inverse @ b1 ) @ b1 ) ) ))).
% 36.16/5.90  thf(zf_stmt_0, negated_conjecture,
% 36.16/5.90    (( ( multiply @ ( multiply @ a3 @ b3 ) @ c3 ) !=
% 36.16/5.90       ( multiply @ a3 @ ( multiply @ b3 @ c3 ) ) ) | 
% 36.16/5.90     ( ( multiply @ ( multiply @ ( inverse @ b2 ) @ b2 ) @ a2 ) != ( a2 ) ) | 
% 36.16/5.90     ( ( multiply @ ( inverse @ a1 ) @ a1 ) !=
% 36.16/5.90       ( multiply @ ( inverse @ b1 ) @ b1 ) )),
% 36.16/5.90    inference('cnf.neg', [status(esa)], [prove_these_axioms])).
% 36.16/5.90  thf(zip_derived_cl2, plain,
% 36.16/5.90      ((((multiply @ (multiply @ a3 @ b3) @ c3)
% 36.16/5.90          != (multiply @ a3 @ (multiply @ b3 @ c3)))
% 36.16/5.90        | ((multiply @ (multiply @ (inverse @ b2) @ b2) @ a2) != (a2))
% 36.16/5.90        | ((multiply @ (inverse @ a1) @ a1) != (multiply @ (inverse @ b1) @ b1)))),
% 36.16/5.90      inference('cnf', [status(esa)], [zf_stmt_0])).
% 36.16/5.90  thf(multiply, axiom,
% 36.16/5.90    (( multiply @ X @ Y ) = ( inverse @ ( double_divide @ Y @ X ) ))).
% 36.16/5.90  thf(zip_derived_cl1, plain,
% 36.16/5.90      (![X0 : $i, X1 : $i]:
% 36.16/5.90         ((multiply @ X1 @ X0) = (inverse @ (double_divide @ X0 @ X1)))),
% 36.16/5.90      inference('cnf', [status(esa)], [multiply])).
% 36.16/5.90  thf(zip_derived_cl1, plain,
% 36.16/5.90      (![X0 : $i, X1 : $i]:
% 36.16/5.90         ((multiply @ X1 @ X0) = (inverse @ (double_divide @ X0 @ X1)))),
% 36.16/5.90      inference('cnf', [status(esa)], [multiply])).
% 36.16/5.90  thf(zip_derived_cl1, plain,
% 36.16/5.90      (![X0 : $i, X1 : $i]:
% 36.16/5.90         ((multiply @ X1 @ X0) = (inverse @ (double_divide @ X0 @ X1)))),
% 36.16/5.90      inference('cnf', [status(esa)], [multiply])).
% 36.16/5.90  thf(zip_derived_cl1, plain,
% 36.16/5.90      (![X0 : $i, X1 : $i]:
% 36.16/5.90         ((multiply @ X1 @ X0) = (inverse @ (double_divide @ X0 @ X1)))),
% 36.16/5.90      inference('cnf', [status(esa)], [multiply])).
% 36.16/5.90  thf(zip_derived_cl1, plain,
% 36.16/5.90      (![X0 : $i, X1 : $i]:
% 36.16/5.90         ((multiply @ X1 @ X0) = (inverse @ (double_divide @ X0 @ X1)))),
% 36.16/5.90      inference('cnf', [status(esa)], [multiply])).
% 36.16/5.90  thf(zip_derived_cl1, plain,
% 36.16/5.90      (![X0 : $i, X1 : $i]:
% 36.16/5.90         ((multiply @ X1 @ X0) = (inverse @ (double_divide @ X0 @ X1)))),
% 36.16/5.90      inference('cnf', [status(esa)], [multiply])).
% 36.16/5.90  thf(zip_derived_cl1, plain,
% 36.16/5.90      (![X0 : $i, X1 : $i]:
% 36.16/5.90         ((multiply @ X1 @ X0) = (inverse @ (double_divide @ X0 @ X1)))),
% 36.16/5.90      inference('cnf', [status(esa)], [multiply])).
% 36.16/5.90  thf(zip_derived_cl1, plain,
% 36.16/5.90      (![X0 : $i, X1 : $i]:
% 36.16/5.90         ((multiply @ X1 @ X0) = (inverse @ (double_divide @ X0 @ X1)))),
% 36.16/5.90      inference('cnf', [status(esa)], [multiply])).
% 36.16/5.90  thf(zip_derived_cl3, plain,
% 36.16/5.90      ((((inverse @ 
% 36.16/5.90          (double_divide @ c3 @ (inverse @ (double_divide @ b3 @ a3))))
% 36.16/5.90          != (inverse @ 
% 36.16/5.90              (double_divide @ (inverse @ (double_divide @ c3 @ b3)) @ a3)))
% 36.16/5.90        | ((inverse @ 
% 36.16/5.90            (double_divide @ a2 @ 
% 36.16/5.90             (inverse @ (double_divide @ b2 @ (inverse @ b2)))))
% 36.16/5.90            != (a2))
% 36.16/5.90        | ((inverse @ (double_divide @ a1 @ (inverse @ a1)))
% 36.16/5.90            != (inverse @ (double_divide @ b1 @ (inverse @ b1)))))),
% 36.16/5.90      inference('demod', [status(thm)],
% 36.16/5.90                [zip_derived_cl2, zip_derived_cl1, zip_derived_cl1, 
% 36.16/5.90                 zip_derived_cl1, zip_derived_cl1, zip_derived_cl1, 
% 36.16/5.90                 zip_derived_cl1, zip_derived_cl1, zip_derived_cl1])).
% 36.16/5.90  thf(zip_derived_cl8432, plain,
% 36.16/5.90      (![X0 : $i]:
% 36.16/5.90         (((inverse @ 
% 36.16/5.90            (double_divide @ a2 @ 
% 36.16/5.90             (inverse @ (double_divide @ (inverse @ X0) @ X0))))
% 36.16/5.90            != (a2))
% 36.16/5.90          | ((inverse @ (double_divide @ a1 @ (inverse @ a1)))
% 36.16/5.90              != (inverse @ (double_divide @ b1 @ (inverse @ b1))))
% 36.16/5.90          | ((inverse @ 
% 36.16/5.90              (double_divide @ c3 @ (inverse @ (double_divide @ b3 @ a3))))
% 36.16/5.90              != (inverse @ 
% 36.16/5.90                  (double_divide @ (inverse @ (double_divide @ c3 @ b3)) @ a3))))),
% 36.16/5.90      inference('sup-', [status(thm)], [zip_derived_cl8331, zip_derived_cl3])).
% 36.16/5.90  thf(zip_derived_cl5637, plain,
% 36.16/5.90      (![X0 : $i, X1 : $i]:
% 36.16/5.90         ((inverse @ 
% 36.16/5.90           (double_divide @ 
% 36.16/5.90            (inverse @ (double_divide @ (inverse @ X0) @ X0)) @ X1))
% 36.16/5.90           = (X1))),
% 36.16/5.90      inference('sup+', [status(thm)], [zip_derived_cl3471, zip_derived_cl5495])).
% 36.16/5.90  thf(zip_derived_cl42, plain,
% 36.16/5.90      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i]:
% 36.16/5.90         ((inverse @ 
% 36.16/5.90           (double_divide @ 
% 36.16/5.90            (inverse @ 
% 36.16/5.90             (double_divide @ X3 @ 
% 36.16/5.90              (double_divide @ X1 @ (double_divide @ (inverse @ X3) @ X2)))) @ 
% 36.16/5.90            (double_divide @ X0 @ (double_divide @ X1 @ X0))))
% 36.16/5.90           = (X2))),
% 36.16/5.90      inference('sup+', [status(thm)], [zip_derived_cl4, zip_derived_cl0])).
% 36.16/5.90  thf(zip_derived_cl0, plain,
% 36.16/5.90      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i]:
% 36.16/5.90         ((double_divide @ (inverse @ X1) @ 
% 36.16/5.90           (inverse @ 
% 36.16/5.90            (double_divide @ 
% 36.16/5.90             (inverse @ (double_divide @ X1 @ (double_divide @ X2 @ X0))) @ 
% 36.16/5.90             (double_divide @ X3 @ (double_divide @ X2 @ X3)))))
% 36.16/5.90           = (X0))),
% 36.16/5.90      inference('cnf', [status(esa)], [single_axiom])).
% 36.16/5.90  thf(zip_derived_cl0, plain,
% 36.16/5.90      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i]:
% 36.16/5.90         ((double_divide @ (inverse @ X1) @ 
% 36.16/5.90           (inverse @ 
% 36.16/5.90            (double_divide @ 
% 36.16/5.90             (inverse @ (double_divide @ X1 @ (double_divide @ X2 @ X0))) @ 
% 36.16/5.90             (double_divide @ X3 @ (double_divide @ X2 @ X3)))))
% 36.16/5.90           = (X0))),
% 36.16/5.90      inference('cnf', [status(esa)], [single_axiom])).
% 36.16/5.90  thf(zip_derived_cl5, plain,
% 36.16/5.90      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i, X4 : $i, X5 : $i]:
% 36.16/5.90         ((double_divide @ (inverse @ X5) @ 
% 36.16/5.90           (inverse @ 
% 36.16/5.90            (double_divide @ 
% 36.16/5.90             (inverse @ 
% 36.16/5.90              (double_divide @ X5 @ (double_divide @ (inverse @ X4) @ X1))) @ 
% 36.16/5.90             (double_divide @ 
% 36.16/5.90              (inverse @ 
% 36.16/5.90               (double_divide @ 
% 36.16/5.90                (inverse @ (double_divide @ X4 @ (double_divide @ X3 @ X0))) @ 
% 36.16/5.90                (double_divide @ X2 @ (double_divide @ X3 @ X2)))) @ 
% 36.16/5.90              X0))))
% 36.16/5.90           = (X1))),
% 36.16/5.90      inference('sup+', [status(thm)], [zip_derived_cl0, zip_derived_cl0])).
% 36.16/5.90  thf(zip_derived_cl0, plain,
% 36.16/5.90      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i]:
% 36.16/5.90         ((double_divide @ (inverse @ X1) @ 
% 36.16/5.90           (inverse @ 
% 36.16/5.90            (double_divide @ 
% 36.16/5.90             (inverse @ (double_divide @ X1 @ (double_divide @ X2 @ X0))) @ 
% 36.16/5.90             (double_divide @ X3 @ (double_divide @ X2 @ X3)))))
% 36.16/5.90           = (X0))),
% 36.16/5.90      inference('cnf', [status(esa)], [single_axiom])).
% 36.16/5.90  thf(zip_derived_cl8, plain,
% 36.16/5.90      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i, X4 : $i, X5 : $i, X6 : $i, X7 : $i]:
% 36.16/5.90         ((double_divide @ (inverse @ X7) @ 
% 36.16/5.90           (inverse @ 
% 36.16/5.90            (double_divide @ (inverse @ (double_divide @ X7 @ X0)) @ 
% 36.16/5.90             (double_divide @ X6 @ (double_divide @ (inverse @ X5) @ X6)))))
% 36.16/5.90           = (inverse @ 
% 36.16/5.90              (double_divide @ 
% 36.16/5.90               (inverse @ 
% 36.16/5.90                (double_divide @ X5 @ (double_divide @ (inverse @ X4) @ X0))) @ 
% 36.16/5.90               (double_divide @ 
% 36.16/5.90                (inverse @ 
% 36.16/5.90                 (double_divide @ 
% 36.16/5.90                  (inverse @ (double_divide @ X4 @ (double_divide @ X3 @ X1))) @ 
% 36.16/5.90                  (double_divide @ X2 @ (double_divide @ X3 @ X2)))) @ 
% 36.16/5.90                X1))))),
% 36.16/5.90      inference('sup+', [status(thm)], [zip_derived_cl5, zip_derived_cl0])).
% 36.16/5.90  thf(zip_derived_cl559, plain,
% 36.16/5.90      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i, X4 : $i, X5 : $i, X6 : $i, 
% 36.16/5.90         X7 : $i, X8 : $i, X9 : $i]:
% 36.16/5.90         ((double_divide @ 
% 36.16/5.90           (inverse @ 
% 36.16/5.90            (inverse @ 
% 36.16/5.90             (double_divide @ X9 @ 
% 36.16/5.90              (double_divide @ X6 @ (double_divide @ (inverse @ X9) @ X0))))) @ 
% 36.16/5.90           (inverse @ 
% 36.16/5.90            (double_divide @ X0 @ 
% 36.16/5.90             (double_divide @ X8 @ (double_divide @ (inverse @ X7) @ X8)))))
% 36.16/5.90           = (inverse @ 
% 36.16/5.90              (double_divide @ 
% 36.16/5.90               (inverse @ 
% 36.16/5.90                (double_divide @ X7 @ 
% 36.16/5.90                 (double_divide @ (inverse @ X4) @ 
% 36.16/5.90                  (double_divide @ X5 @ (double_divide @ X6 @ X5))))) @ 
% 36.16/5.90               (double_divide @ 
% 36.16/5.90                (inverse @ 
% 36.16/5.90                 (double_divide @ 
% 36.16/5.90                  (inverse @ (double_divide @ X4 @ (double_divide @ X3 @ X1))) @ 
% 36.16/5.90                  (double_divide @ X2 @ (double_divide @ X3 @ X2)))) @ 
% 36.16/5.90                X1))))),
% 36.16/5.90      inference('sup+', [status(thm)], [zip_derived_cl42, zip_derived_cl8])).
% 36.16/5.90  thf(zip_derived_cl130, plain,
% 36.16/5.90      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i, X4 : $i]:
% 36.16/5.90         ((double_divide @ 
% 36.16/5.90           (inverse @ 
% 36.16/5.90            (inverse @ 
% 36.16/5.90             (double_divide @ X4 @ 
% 36.16/5.90              (double_divide @ X2 @ (double_divide @ (inverse @ X4) @ X0))))) @ 
% 36.16/5.90           (inverse @ 
% 36.16/5.90            (double_divide @ X0 @ 
% 36.16/5.90             (double_divide @ X3 @ (double_divide @ X1 @ X3)))))
% 36.16/5.90           = (double_divide @ X2 @ X1))),
% 36.16/5.90      inference('sup+', [status(thm)], [zip_derived_cl42, zip_derived_cl0])).
% 36.16/5.90  thf(zip_derived_cl625, plain,
% 36.16/5.90      (![X1 : $i, X2 : $i, X3 : $i, X4 : $i, X5 : $i, X6 : $i, X7 : $i]:
% 36.16/5.90         ((double_divide @ X6 @ (inverse @ X7))
% 36.16/5.90           = (inverse @ 
% 36.16/5.90              (double_divide @ 
% 36.16/5.90               (inverse @ 
% 36.16/5.90                (double_divide @ X7 @ 
% 36.16/5.90                 (double_divide @ (inverse @ X4) @ 
% 36.16/5.90                  (double_divide @ X5 @ (double_divide @ X6 @ X5))))) @ 
% 36.16/5.90               (double_divide @ 
% 36.16/5.90                (inverse @ 
% 36.16/5.90                 (double_divide @ 
% 36.16/5.90                  (inverse @ (double_divide @ X4 @ (double_divide @ X3 @ X1))) @ 
% 36.16/5.90                  (double_divide @ X2 @ (double_divide @ X3 @ X2)))) @ 
% 36.16/5.90                X1))))),
% 36.16/5.90      inference('demod', [status(thm)], [zip_derived_cl559, zip_derived_cl130])).
% 36.16/5.90  thf(zip_derived_cl8133, plain,
% 36.16/5.90      (![X0 : $i, X1 : $i]:
% 36.16/5.90         ((double_divide @ X0 @ (double_divide @ X1 @ X0)) = (X1))),
% 36.16/5.90      inference('sup+', [status(thm)], [zip_derived_cl7854, zip_derived_cl3282])).
% 36.16/5.90  thf(zip_derived_cl8133, plain,
% 36.16/5.90      (![X0 : $i, X1 : $i]:
% 36.16/5.90         ((double_divide @ X0 @ (double_divide @ X1 @ X0)) = (X1))),
% 36.16/5.90      inference('sup+', [status(thm)], [zip_derived_cl7854, zip_derived_cl3282])).
% 36.16/5.90  thf(zip_derived_cl8867, plain,
% 36.16/5.90      (![X1 : $i, X3 : $i, X4 : $i, X6 : $i, X7 : $i]:
% 36.16/5.90         ((double_divide @ X6 @ (inverse @ X7))
% 36.16/5.90           = (inverse @ 
% 36.16/5.90              (double_divide @ 
% 36.16/5.90               (inverse @ 
% 36.16/5.90                (double_divide @ X7 @ (double_divide @ (inverse @ X4) @ X6))) @ 
% 36.16/5.90               (double_divide @ 
% 36.16/5.90                (inverse @ 
% 36.16/5.90                 (double_divide @ 
% 36.16/5.90                  (inverse @ (double_divide @ X4 @ (double_divide @ X3 @ X1))) @ 
% 36.16/5.90                  X3)) @ 
% 36.16/5.90                X1))))),
% 36.16/5.90      inference('demod', [status(thm)],
% 36.16/5.90                [zip_derived_cl625, zip_derived_cl8133, zip_derived_cl8133])).
% 36.16/5.90  thf(zip_derived_cl8920, plain,
% 36.16/5.90      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i, X4 : $i]:
% 36.16/5.90         ((double_divide @ X3 @ (inverse @ X4))
% 36.16/5.90           = (inverse @ 
% 36.16/5.90              (double_divide @ 
% 36.16/5.90               (inverse @ 
% 36.16/5.90                (double_divide @ X4 @ 
% 36.16/5.90                 (double_divide @ 
% 36.16/5.90                  (inverse @ (inverse @ (double_divide @ (inverse @ X2) @ X2))) @ 
% 36.16/5.90                  X3))) @ 
% 36.16/5.90               (double_divide @ 
% 36.16/5.90                (inverse @ (double_divide @ (double_divide @ X1 @ X0) @ X1)) @ 
% 36.16/5.90                X0))))),
% 36.16/5.90      inference('sup+', [status(thm)], [zip_derived_cl5637, zip_derived_cl8867])).
% 36.16/5.90  thf(zip_derived_cl3282, plain,
% 36.16/5.90      (![X2 : $i, X4 : $i, X5 : $i]:
% 36.16/5.90         ((double_divide @ X4 @ 
% 36.16/5.90           (double_divide @ 
% 36.16/5.90            (inverse @ 
% 36.16/5.90             (inverse @ (double_divide @ X5 @ (double_divide @ X2 @ X5)))) @ 
% 36.16/5.90            X4))
% 36.16/5.90           = (X2))),
% 36.16/5.90      inference('demod', [status(thm)],
% 36.16/5.90                [zip_derived_cl3171, zip_derived_cl1739])).
% 36.16/5.90  thf(zip_derived_cl8133, plain,
% 36.16/5.90      (![X0 : $i, X1 : $i]:
% 36.16/5.90         ((double_divide @ X0 @ (double_divide @ X1 @ X0)) = (X1))),
% 36.16/5.90      inference('sup+', [status(thm)], [zip_derived_cl7854, zip_derived_cl3282])).
% 36.16/5.90  thf(zip_derived_cl8133, plain,
% 36.16/5.90      (![X0 : $i, X1 : $i]:
% 36.16/5.90         ((double_divide @ X0 @ (double_divide @ X1 @ X0)) = (X1))),
% 36.16/5.90      inference('sup+', [status(thm)], [zip_derived_cl7854, zip_derived_cl3282])).
% 36.16/5.90  thf(zip_derived_cl8315, plain,
% 36.16/5.90      (![X2 : $i]: ((inverse @ (inverse @ X2)) = (X2))),
% 36.16/5.90      inference('demod', [status(thm)],
% 36.16/5.90                [zip_derived_cl3282, zip_derived_cl8133, zip_derived_cl8133])).
% 36.16/5.90  thf(zip_derived_cl8331, plain,
% 36.16/5.90      (![X0 : $i, X1 : $i]:
% 36.16/5.90         ((double_divide @ (inverse @ X0) @ X0)
% 36.16/5.90           = (double_divide @ X1 @ (inverse @ X1)))),
% 36.16/5.90      inference('sup+', [status(thm)], [zip_derived_cl7130, zip_derived_cl8133])).
% 36.16/5.90  thf(zip_derived_cl851, plain,
% 36.16/5.90      (![X0 : $i, X1 : $i, X5 : $i]:
% 36.16/5.90         ((double_divide @ X5 @ (double_divide @ X0 @ X5))
% 36.16/5.90           = (double_divide @ X1 @ (double_divide @ X0 @ X1)))),
% 36.16/5.90      inference('demod', [status(thm)], [zip_derived_cl829, zip_derived_cl42])).
% 36.16/5.90  thf(zip_derived_cl851, plain,
% 36.16/5.90      (![X0 : $i, X1 : $i, X5 : $i]:
% 36.16/5.90         ((double_divide @ X5 @ (double_divide @ X0 @ X5))
% 36.16/5.90           = (double_divide @ X1 @ (double_divide @ X0 @ X1)))),
% 36.16/5.90      inference('demod', [status(thm)], [zip_derived_cl829, zip_derived_cl42])).
% 36.16/5.90  thf(zip_derived_cl866, plain,
% 36.16/5.90      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i]:
% 36.16/5.90         ((double_divide @ X3 @ (double_divide @ X2 @ X3))
% 36.16/5.90           = (double_divide @ (double_divide @ X1 @ X2) @ 
% 36.16/5.90              (double_divide @ X0 @ (double_divide @ X1 @ X0))))),
% 36.16/5.90      inference('sup+', [status(thm)], [zip_derived_cl851, zip_derived_cl851])).
% 36.16/5.90  thf(zip_derived_cl8133, plain,
% 36.16/5.90      (![X0 : $i, X1 : $i]:
% 36.16/5.90         ((double_divide @ X0 @ (double_divide @ X1 @ X0)) = (X1))),
% 36.16/5.90      inference('sup+', [status(thm)], [zip_derived_cl7854, zip_derived_cl3282])).
% 36.16/5.90  thf(zip_derived_cl8133, plain,
% 36.16/5.90      (![X0 : $i, X1 : $i]:
% 36.16/5.90         ((double_divide @ X0 @ (double_divide @ X1 @ X0)) = (X1))),
% 36.16/5.90      inference('sup+', [status(thm)], [zip_derived_cl7854, zip_derived_cl3282])).
% 36.16/5.90  thf(zip_derived_cl8308, plain,
% 36.16/5.90      (![X1 : $i, X2 : $i]:
% 36.16/5.90         ((X2) = (double_divide @ (double_divide @ X1 @ X2) @ X1))),
% 36.16/5.90      inference('demod', [status(thm)],
% 36.16/5.90                [zip_derived_cl866, zip_derived_cl8133, zip_derived_cl8133])).
% 36.16/5.90  thf(zip_derived_cl8422, plain,
% 36.16/5.90      (![X0 : $i, X1 : $i]:
% 36.16/5.90         ((inverse @ X1)
% 36.16/5.90           = (double_divide @ (double_divide @ (inverse @ X0) @ X0) @ X1))),
% 36.16/5.90      inference('sup+', [status(thm)], [zip_derived_cl8331, zip_derived_cl8308])).
% 36.16/5.90  thf(zip_derived_cl8308, plain,
% 36.16/5.90      (![X1 : $i, X2 : $i]:
% 36.16/5.90         ((X2) = (double_divide @ (double_divide @ X1 @ X2) @ X1))),
% 36.16/5.90      inference('demod', [status(thm)],
% 36.16/5.90                [zip_derived_cl866, zip_derived_cl8133, zip_derived_cl8133])).
% 36.16/5.90  thf(zip_derived_cl7854, plain,
% 36.16/5.90      (![X0 : $i, X1 : $i]:
% 36.16/5.90         ((double_divide @ (inverse @ X1) @ 
% 36.16/5.90           (double_divide @ (inverse @ X0) @ X0)) = (X1))),
% 36.16/5.90      inference('sup+', [status(thm)], [zip_derived_cl5637, zip_derived_cl3471])).
% 36.16/5.90  thf(zip_derived_cl8997, plain,
% 36.16/5.90      (![X3 : $i, X4 : $i]:
% 36.16/5.90         ((double_divide @ X3 @ (inverse @ X4))
% 36.16/5.90           = (inverse @ (double_divide @ X4 @ (inverse @ X3))))),
% 36.16/5.90      inference('demod', [status(thm)],
% 36.16/5.90                [zip_derived_cl8920, zip_derived_cl8315, zip_derived_cl8422, 
% 36.16/5.90                 zip_derived_cl8308, zip_derived_cl7854])).
% 36.16/5.90  thf(zip_derived_cl8422, plain,
% 36.16/5.90      (![X0 : $i, X1 : $i]:
% 36.16/5.90         ((inverse @ X1)
% 36.16/5.90           = (double_divide @ (double_divide @ (inverse @ X0) @ X0) @ X1))),
% 36.16/5.90      inference('sup+', [status(thm)], [zip_derived_cl8331, zip_derived_cl8308])).
% 36.16/5.90  thf(zip_derived_cl8315, plain,
% 36.16/5.90      (![X2 : $i]: ((inverse @ (inverse @ X2)) = (X2))),
% 36.16/5.90      inference('demod', [status(thm)],
% 36.16/5.90                [zip_derived_cl3282, zip_derived_cl8133, zip_derived_cl8133])).
% 36.16/5.90  thf(zip_derived_cl8997, plain,
% 36.16/5.90      (![X3 : $i, X4 : $i]:
% 36.16/5.90         ((double_divide @ X3 @ (inverse @ X4))
% 36.16/5.90           = (inverse @ (double_divide @ X4 @ (inverse @ X3))))),
% 36.16/5.90      inference('demod', [status(thm)],
% 36.16/5.90                [zip_derived_cl8920, zip_derived_cl8315, zip_derived_cl8422, 
% 36.16/5.90                 zip_derived_cl8308, zip_derived_cl7854])).
% 36.16/5.90  thf(zip_derived_cl8997, plain,
% 36.16/5.90      (![X3 : $i, X4 : $i]:
% 36.16/5.90         ((double_divide @ X3 @ (inverse @ X4))
% 36.16/5.90           = (inverse @ (double_divide @ X4 @ (inverse @ X3))))),
% 36.16/5.90      inference('demod', [status(thm)],
% 36.16/5.90                [zip_derived_cl8920, zip_derived_cl8315, zip_derived_cl8422, 
% 36.16/5.90                 zip_derived_cl8308, zip_derived_cl7854])).
% 36.16/5.90  thf(zip_derived_cl8997, plain,
% 36.16/5.90      (![X3 : $i, X4 : $i]:
% 36.16/5.90         ((double_divide @ X3 @ (inverse @ X4))
% 36.16/5.90           = (inverse @ (double_divide @ X4 @ (inverse @ X3))))),
% 36.16/5.90      inference('demod', [status(thm)],
% 36.16/5.90                [zip_derived_cl8920, zip_derived_cl8315, zip_derived_cl8422, 
% 36.16/5.90                 zip_derived_cl8308, zip_derived_cl7854])).
% 36.16/5.90  thf(zip_derived_cl9060, plain,
% 36.16/5.90      ((((a2) != (a2))
% 36.16/5.90        | ((double_divide @ a1 @ (inverse @ a1))
% 36.16/5.90            != (double_divide @ b1 @ (inverse @ b1)))
% 36.16/5.90        | ((double_divide @ (double_divide @ b3 @ a3) @ (inverse @ c3))
% 36.16/5.90            != (inverse @ 
% 36.16/5.90                (double_divide @ (inverse @ (double_divide @ c3 @ b3)) @ a3))))),
% 36.16/5.90      inference('demod', [status(thm)],
% 36.16/5.90                [zip_derived_cl8432, zip_derived_cl8997, zip_derived_cl8422, 
% 36.16/5.90                 zip_derived_cl8315, zip_derived_cl8997, zip_derived_cl8997, 
% 36.16/5.90                 zip_derived_cl8997])).
% 36.16/5.90  thf(zip_derived_cl9061, plain,
% 36.16/5.90      ((((double_divide @ (double_divide @ b3 @ a3) @ (inverse @ c3))
% 36.16/5.90          != (inverse @ 
% 36.16/5.90              (double_divide @ (inverse @ (double_divide @ c3 @ b3)) @ a3)))
% 36.16/5.90        | ((double_divide @ a1 @ (inverse @ a1))
% 36.16/5.90            != (double_divide @ b1 @ (inverse @ b1))))),
% 36.16/5.90      inference('simplify', [status(thm)], [zip_derived_cl9060])).
% 36.16/5.90  thf(zip_derived_cl8331, plain,
% 36.16/5.90      (![X0 : $i, X1 : $i]:
% 36.16/5.90         ((double_divide @ (inverse @ X0) @ X0)
% 36.16/5.90           = (double_divide @ X1 @ (inverse @ X1)))),
% 36.16/5.90      inference('sup+', [status(thm)], [zip_derived_cl7130, zip_derived_cl8133])).
% 36.16/5.90  thf(zip_derived_cl8331, plain,
% 36.16/5.90      (![X0 : $i, X1 : $i]:
% 36.16/5.90         ((double_divide @ (inverse @ X0) @ X0)
% 36.16/5.90           = (double_divide @ X1 @ (inverse @ X1)))),
% 36.16/5.90      inference('sup+', [status(thm)], [zip_derived_cl7130, zip_derived_cl8133])).
% 36.16/5.90  thf(zip_derived_cl8441, plain,
% 36.16/5.90      (![X0 : $i, X1 : $i]:
% 36.16/5.90         ((double_divide @ X0 @ (inverse @ X0))
% 36.16/5.90           = (double_divide @ X1 @ (inverse @ X1)))),
% 36.16/5.90      inference('sup+', [status(thm)], [zip_derived_cl8331, zip_derived_cl8331])).
% 36.16/5.90  thf(zip_derived_cl9062, plain,
% 36.16/5.90      (((double_divide @ (double_divide @ b3 @ a3) @ (inverse @ c3))
% 36.16/5.90         != (inverse @ 
% 36.16/5.90             (double_divide @ (inverse @ (double_divide @ c3 @ b3)) @ a3)))),
% 36.16/5.90      inference('simplify_reflect+', [status(thm)],
% 36.16/5.90                [zip_derived_cl9061, zip_derived_cl8441])).
% 36.16/5.90  thf(zip_derived_cl8315, plain,
% 36.16/5.90      (![X2 : $i]: ((inverse @ (inverse @ X2)) = (X2))),
% 36.16/5.90      inference('demod', [status(thm)],
% 36.16/5.90                [zip_derived_cl3282, zip_derived_cl8133, zip_derived_cl8133])).
% 36.16/5.90  thf(zip_derived_cl8315, plain,
% 36.16/5.90      (![X2 : $i]: ((inverse @ (inverse @ X2)) = (X2))),
% 36.16/5.90      inference('demod', [status(thm)],
% 36.16/5.90                [zip_derived_cl3282, zip_derived_cl8133, zip_derived_cl8133])).
% 36.16/5.90  thf(zip_derived_cl8997, plain,
% 36.16/5.90      (![X3 : $i, X4 : $i]:
% 36.16/5.90         ((double_divide @ X3 @ (inverse @ X4))
% 36.16/5.90           = (inverse @ (double_divide @ X4 @ (inverse @ X3))))),
% 36.16/5.90      inference('demod', [status(thm)],
% 36.16/5.90                [zip_derived_cl8920, zip_derived_cl8315, zip_derived_cl8422, 
% 36.16/5.90                 zip_derived_cl8308, zip_derived_cl7854])).
% 36.16/5.90  thf(zip_derived_cl9112, plain,
% 36.16/5.90      (![X0 : $i, X1 : $i]:
% 36.16/5.90         ((double_divide @ (inverse @ X0) @ (inverse @ X1))
% 36.16/5.90           = (inverse @ (double_divide @ X1 @ X0)))),
% 36.16/5.90      inference('sup+', [status(thm)], [zip_derived_cl8315, zip_derived_cl8997])).
% 36.16/5.90  thf(zip_derived_cl9305, plain,
% 36.16/5.90      (![X0 : $i, X1 : $i]:
% 36.16/5.90         ((double_divide @ (inverse @ X1) @ X0)
% 36.16/5.90           = (inverse @ (double_divide @ (inverse @ X0) @ X1)))),
% 36.16/5.90      inference('sup+', [status(thm)], [zip_derived_cl8315, zip_derived_cl9112])).
% 36.16/5.90  thf(zip_derived_cl9337, plain,
% 36.16/5.90      (((double_divide @ (double_divide @ b3 @ a3) @ (inverse @ c3))
% 36.16/5.90         != (double_divide @ (inverse @ a3) @ (double_divide @ c3 @ b3)))),
% 36.16/5.90      inference('demod', [status(thm)],
% 36.16/5.90                [zip_derived_cl9062, zip_derived_cl9305])).
% 36.16/5.90  thf(zip_derived_cl7854, plain,
% 36.16/5.90      (![X0 : $i, X1 : $i]:
% 36.16/5.90         ((double_divide @ (inverse @ X1) @ 
% 36.16/5.90           (double_divide @ (inverse @ X0) @ X0)) = (X1))),
% 36.16/5.90      inference('sup+', [status(thm)], [zip_derived_cl5637, zip_derived_cl3471])).
% 36.16/5.90  thf(zip_derived_cl5, plain,
% 36.16/5.90      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i, X4 : $i, X5 : $i]:
% 36.16/5.90         ((double_divide @ (inverse @ X5) @ 
% 36.16/5.90           (inverse @ 
% 36.16/5.90            (double_divide @ 
% 36.16/5.90             (inverse @ 
% 36.16/5.90              (double_divide @ X5 @ (double_divide @ (inverse @ X4) @ X1))) @ 
% 36.16/5.90             (double_divide @ 
% 36.16/5.90              (inverse @ 
% 36.16/5.90               (double_divide @ 
% 36.16/5.90                (inverse @ (double_divide @ X4 @ (double_divide @ X3 @ X0))) @ 
% 36.16/5.90                (double_divide @ X2 @ (double_divide @ X3 @ X2)))) @ 
% 36.16/5.90              X0))))
% 36.16/5.90           = (X1))),
% 36.16/5.90      inference('sup+', [status(thm)], [zip_derived_cl0, zip_derived_cl0])).
% 36.16/5.90  thf(zip_derived_cl8, plain,
% 36.16/5.90      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i, X4 : $i, X5 : $i, X6 : $i, X7 : $i]:
% 36.16/5.90         ((double_divide @ (inverse @ X7) @ 
% 36.16/5.90           (inverse @ 
% 36.16/5.90            (double_divide @ (inverse @ (double_divide @ X7 @ X0)) @ 
% 36.16/5.90             (double_divide @ X6 @ (double_divide @ (inverse @ X5) @ X6)))))
% 36.16/5.90           = (inverse @ 
% 36.16/5.90              (double_divide @ 
% 36.16/5.90               (inverse @ 
% 36.16/5.90                (double_divide @ X5 @ (double_divide @ (inverse @ X4) @ X0))) @ 
% 36.16/5.90               (double_divide @ 
% 36.16/5.90                (inverse @ 
% 36.16/5.90                 (double_divide @ 
% 36.16/5.90                  (inverse @ (double_divide @ X4 @ (double_divide @ X3 @ X1))) @ 
% 36.16/5.90                  (double_divide @ X2 @ (double_divide @ X3 @ X2)))) @ 
% 36.16/5.90                X1))))),
% 36.16/5.90      inference('sup+', [status(thm)], [zip_derived_cl5, zip_derived_cl0])).
% 36.16/5.90  thf(zip_derived_cl564, plain,
% 36.16/5.90      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i, X4 : $i, X5 : $i, X6 : $i, 
% 36.16/5.90         X7 : $i, X8 : $i, X9 : $i, X10 : $i, X11 : $i]:
% 36.16/5.90         ((double_divide @ (inverse @ (inverse @ X9)) @ 
% 36.16/5.90           (inverse @ 
% 36.16/5.90            (double_divide @ (inverse @ X0) @ 
% 36.16/5.90             (double_divide @ X11 @ (double_divide @ (inverse @ X10) @ X11)))))
% 36.16/5.90           = (inverse @ 
% 36.16/5.90              (double_divide @ 
% 36.16/5.90               (inverse @ 
% 36.16/5.90                (double_divide @ X10 @ 
% 36.16/5.90                 (double_divide @ (inverse @ X4) @ 
% 36.16/5.90                  (inverse @ 
% 36.16/5.90                   (double_divide @ 
% 36.16/5.90                    (inverse @ 
% 36.16/5.90                     (double_divide @ X9 @ 
% 36.16/5.90                      (double_divide @ (inverse @ X8) @ X0))) @ 
% 36.16/5.90                    (double_divide @ 
% 36.16/5.90                     (inverse @ 
% 36.16/5.90                      (double_divide @ 
% 36.16/5.90                       (inverse @ 
% 36.16/5.90                        (double_divide @ X8 @ (double_divide @ X7 @ X5))) @ 
% 36.16/5.90                       (double_divide @ X6 @ (double_divide @ X7 @ X6)))) @ 
% 36.16/5.90                     X5)))))) @ 
% 36.16/5.90               (double_divide @ 
% 36.16/5.90                (inverse @ 
% 36.16/5.90                 (double_divide @ 
% 36.16/5.90                  (inverse @ (double_divide @ X4 @ (double_divide @ X3 @ X1))) @ 
% 36.16/5.90                  (double_divide @ X2 @ (double_divide @ X3 @ X2)))) @ 
% 36.16/5.90                X1))))),
% 36.16/5.90      inference('sup+', [status(thm)], [zip_derived_cl5, zip_derived_cl8])).
% 36.16/5.90  thf(zip_derived_cl8, plain,
% 36.16/5.90      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i, X4 : $i, X5 : $i, X6 : $i, X7 : $i]:
% 36.16/5.90         ((double_divide @ (inverse @ X7) @ 
% 36.16/5.90           (inverse @ 
% 36.16/5.90            (double_divide @ (inverse @ (double_divide @ X7 @ X0)) @ 
% 36.16/5.90             (double_divide @ X6 @ (double_divide @ (inverse @ X5) @ X6)))))
% 36.16/5.90           = (inverse @ 
% 36.16/5.90              (double_divide @ 
% 36.16/5.90               (inverse @ 
% 36.16/5.90                (double_divide @ X5 @ (double_divide @ (inverse @ X4) @ X0))) @ 
% 36.16/5.90               (double_divide @ 
% 36.16/5.90                (inverse @ 
% 36.16/5.90                 (double_divide @ 
% 36.16/5.90                  (inverse @ (double_divide @ X4 @ (double_divide @ X3 @ X1))) @ 
% 36.16/5.90                  (double_divide @ X2 @ (double_divide @ X3 @ X2)))) @ 
% 36.16/5.90                X1))))),
% 36.16/5.90      inference('sup+', [status(thm)], [zip_derived_cl5, zip_derived_cl0])).
% 36.16/5.90  thf(zip_derived_cl626, plain,
% 36.16/5.90      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i, X4 : $i, X6 : $i, X7 : $i, 
% 36.16/5.90         X9 : $i, X10 : $i, X11 : $i]:
% 36.16/5.90         ((double_divide @ (inverse @ (inverse @ X9)) @ 
% 36.16/5.90           (inverse @ 
% 36.16/5.90            (double_divide @ (inverse @ X0) @ 
% 36.16/5.90             (double_divide @ X11 @ (double_divide @ (inverse @ X10) @ X11)))))
% 36.16/5.90           = (inverse @ 
% 36.16/5.90              (double_divide @ 
% 36.16/5.90               (inverse @ 
% 36.16/5.90                (double_divide @ X10 @ 
% 36.16/5.90                 (double_divide @ (inverse @ X4) @ 
% 36.16/5.90                  (double_divide @ (inverse @ X7) @ 
% 36.16/5.90                   (inverse @ 
% 36.16/5.90                    (double_divide @ (inverse @ (double_divide @ X7 @ X0)) @ 
% 36.16/5.90                     (double_divide @ X6 @ 
% 36.16/5.90                      (double_divide @ (inverse @ X9) @ X6)))))))) @ 
% 36.16/5.90               (double_divide @ 
% 36.16/5.90                (inverse @ 
% 36.16/5.90                 (double_divide @ 
% 36.16/5.90                  (inverse @ (double_divide @ X4 @ (double_divide @ X3 @ X1))) @ 
% 36.16/5.90                  (double_divide @ X2 @ (double_divide @ X3 @ X2)))) @ 
% 36.16/5.90                X1))))),
% 36.16/5.90      inference('demod', [status(thm)], [zip_derived_cl564, zip_derived_cl8])).
% 36.16/5.90  thf(zip_derived_cl8315, plain,
% 36.16/5.90      (![X2 : $i]: ((inverse @ (inverse @ X2)) = (X2))),
% 36.16/5.90      inference('demod', [status(thm)],
% 36.16/5.90                [zip_derived_cl3282, zip_derived_cl8133, zip_derived_cl8133])).
% 36.16/5.90  thf(zip_derived_cl8133, plain,
% 36.16/5.90      (![X0 : $i, X1 : $i]:
% 36.16/5.90         ((double_divide @ X0 @ (double_divide @ X1 @ X0)) = (X1))),
% 36.16/5.90      inference('sup+', [status(thm)], [zip_derived_cl7854, zip_derived_cl3282])).
% 36.16/5.90  thf(zip_derived_cl8997, plain,
% 36.16/5.90      (![X3 : $i, X4 : $i]:
% 36.16/5.90         ((double_divide @ X3 @ (inverse @ X4))
% 36.16/5.90           = (inverse @ (double_divide @ X4 @ (inverse @ X3))))),
% 36.16/5.90      inference('demod', [status(thm)],
% 36.16/5.90                [zip_derived_cl8920, zip_derived_cl8315, zip_derived_cl8422, 
% 36.16/5.90                 zip_derived_cl8308, zip_derived_cl7854])).
% 36.16/5.90  thf(zip_derived_cl8315, plain,
% 36.16/5.90      (![X2 : $i]: ((inverse @ (inverse @ X2)) = (X2))),
% 36.16/5.90      inference('demod', [status(thm)],
% 36.16/5.90                [zip_derived_cl3282, zip_derived_cl8133, zip_derived_cl8133])).
% 36.16/5.90  thf(zip_derived_cl8133, plain,
% 36.16/5.90      (![X0 : $i, X1 : $i]:
% 36.16/5.90         ((double_divide @ X0 @ (double_divide @ X1 @ X0)) = (X1))),
% 36.16/5.90      inference('sup+', [status(thm)], [zip_derived_cl7854, zip_derived_cl3282])).
% 36.16/5.90  thf(zip_derived_cl8997, plain,
% 36.16/5.90      (![X3 : $i, X4 : $i]:
% 36.16/5.90         ((double_divide @ X3 @ (inverse @ X4))
% 36.16/5.90           = (inverse @ (double_divide @ X4 @ (inverse @ X3))))),
% 36.16/5.90      inference('demod', [status(thm)],
% 36.16/5.90                [zip_derived_cl8920, zip_derived_cl8315, zip_derived_cl8422, 
% 36.16/5.90                 zip_derived_cl8308, zip_derived_cl7854])).
% 36.16/5.90  thf(zip_derived_cl8315, plain,
% 36.16/5.90      (![X2 : $i]: ((inverse @ (inverse @ X2)) = (X2))),
% 36.16/5.90      inference('demod', [status(thm)],
% 36.16/5.90                [zip_derived_cl3282, zip_derived_cl8133, zip_derived_cl8133])).
% 36.16/5.90  thf(zip_derived_cl8133, plain,
% 36.16/5.90      (![X0 : $i, X1 : $i]:
% 36.16/5.90         ((double_divide @ X0 @ (double_divide @ X1 @ X0)) = (X1))),
% 36.16/5.90      inference('sup+', [status(thm)], [zip_derived_cl7854, zip_derived_cl3282])).
% 36.16/5.90  thf(zip_derived_cl8867, plain,
% 36.16/5.90      (![X1 : $i, X3 : $i, X4 : $i, X6 : $i, X7 : $i]:
% 36.16/5.90         ((double_divide @ X6 @ (inverse @ X7))
% 36.16/5.90           = (inverse @ 
% 36.16/5.90              (double_divide @ 
% 36.16/5.90               (inverse @ 
% 36.16/5.90                (double_divide @ X7 @ (double_divide @ (inverse @ X4) @ X6))) @ 
% 36.16/5.90               (double_divide @ 
% 36.16/5.90                (inverse @ 
% 36.16/5.90                 (double_divide @ 
% 36.16/5.90                  (inverse @ (double_divide @ X4 @ (double_divide @ X3 @ X1))) @ 
% 36.16/5.90                  X3)) @ 
% 36.16/5.90                X1))))),
% 36.16/5.90      inference('demod', [status(thm)],
% 36.16/5.90                [zip_derived_cl625, zip_derived_cl8133, zip_derived_cl8133])).
% 36.16/5.90  thf(zip_derived_cl9127, plain,
% 36.16/5.90      (![X0 : $i, X7 : $i, X9 : $i, X10 : $i]:
% 36.16/5.90         ((double_divide @ X9 @ (double_divide @ X10 @ X0))
% 36.16/5.90           = (double_divide @ 
% 36.16/5.90              (double_divide @ (inverse @ X7) @ 
% 36.16/5.90               (double_divide @ X9 @ (double_divide @ X7 @ X0))) @ 
% 36.16/5.90              (inverse @ X10)))),
% 36.16/5.90      inference('demod', [status(thm)],
% 36.16/5.90                [zip_derived_cl626, zip_derived_cl8315, zip_derived_cl8133, 
% 36.16/5.90                 zip_derived_cl8997, zip_derived_cl8315, zip_derived_cl8133, 
% 36.16/5.90                 zip_derived_cl8997, zip_derived_cl8315, zip_derived_cl8133, 
% 36.16/5.90                 zip_derived_cl8867])).
% 36.16/5.90  thf(zip_derived_cl9157, plain,
% 36.16/5.90      (![X0 : $i, X1 : $i, X2 : $i]:
% 36.16/5.90         ((double_divide @ (inverse @ X0) @ (double_divide @ X1 @ X2))
% 36.16/5.90           = (double_divide @ 
% 36.16/5.90              (double_divide @ (inverse @ (inverse @ X2)) @ X0) @ 
% 36.16/5.90              (inverse @ X1)))),
% 36.16/5.90      inference('sup+', [status(thm)], [zip_derived_cl7854, zip_derived_cl9127])).
% 36.16/5.90  thf(zip_derived_cl8315, plain,
% 36.16/5.90      (![X2 : $i]: ((inverse @ (inverse @ X2)) = (X2))),
% 36.16/5.90      inference('demod', [status(thm)],
% 36.16/5.90                [zip_derived_cl3282, zip_derived_cl8133, zip_derived_cl8133])).
% 36.16/5.90  thf(zip_derived_cl9191, plain,
% 36.16/5.90      (![X0 : $i, X1 : $i, X2 : $i]:
% 36.16/5.90         ((double_divide @ (inverse @ X0) @ (double_divide @ X1 @ X2))
% 36.16/5.90           = (double_divide @ (double_divide @ X2 @ X0) @ (inverse @ X1)))),
% 36.16/5.90      inference('demod', [status(thm)],
% 36.16/5.90                [zip_derived_cl9157, zip_derived_cl8315])).
% 36.16/5.90  thf(zip_derived_cl13224, plain,
% 36.16/5.90      (((double_divide @ (inverse @ a3) @ (double_divide @ c3 @ b3))
% 36.16/5.90         != (double_divide @ (inverse @ a3) @ (double_divide @ c3 @ b3)))),
% 36.16/5.90      inference('demod', [status(thm)],
% 36.16/5.90                [zip_derived_cl9337, zip_derived_cl9191])).
% 36.16/5.90  thf(zip_derived_cl13225, plain, ($false),
% 36.16/5.90      inference('simplify', [status(thm)], [zip_derived_cl13224])).
% 36.16/5.90  
% 36.16/5.90  % SZS output end Refutation
% 36.16/5.90  
% 36.16/5.90  
% 36.16/5.90  % Terminating...
% 36.16/5.95  % Runner terminated.
% 36.16/5.96  % Zipperpin 1.5 exiting
%------------------------------------------------------------------------------