TSTP Solution File: GRP452-1 by Zipperpin---2.1.9999
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- Process Solution
%------------------------------------------------------------------------------
% File : Zipperpin---2.1.9999
% Problem : GRP452-1 : TPTP v8.1.2. Released v2.6.0.
% Transfm : NO INFORMATION
% Format : NO INFORMATION
% Command : python3 /export/starexec/sandbox/solver/bin/portfolio.lams.parallel.py %s %d /export/starexec/sandbox/tmp/tmp.b2KNf1SBIT true
% Computer : n018.cluster.edu
% Model : x86_64 x86_64
% CPU : Intel(R) Xeon(R) CPU E5-2620 v4 2.10GHz
% Memory : 8042.1875MB
% OS : Linux 3.10.0-693.el7.x86_64
% CPULimit : 300s
% WCLimit : 300s
% DateTime : Thu Aug 31 01:51:42 EDT 2023
% Result : Unsatisfiable 0.91s 0.86s
% Output : Refutation 0.91s
% Verified :
% SZS Type : -
% Comments :
%------------------------------------------------------------------------------
%----WARNING: Could not form TPTP format derivation
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.11/0.12 % Problem : GRP452-1 : TPTP v8.1.2. Released v2.6.0.
% 0.11/0.13 % Command : python3 /export/starexec/sandbox/solver/bin/portfolio.lams.parallel.py %s %d /export/starexec/sandbox/tmp/tmp.b2KNf1SBIT true
% 0.13/0.34 % Computer : n018.cluster.edu
% 0.13/0.34 % Model : x86_64 x86_64
% 0.13/0.34 % CPU : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.13/0.34 % Memory : 8042.1875MB
% 0.13/0.34 % OS : Linux 3.10.0-693.el7.x86_64
% 0.13/0.34 % CPULimit : 300
% 0.13/0.34 % WCLimit : 300
% 0.13/0.34 % DateTime : Mon Aug 28 22:51:47 EDT 2023
% 0.13/0.35 % CPUTime :
% 0.13/0.35 % Running portfolio for 300 s
% 0.13/0.35 % File : /export/starexec/sandbox/benchmark/theBenchmark.p
% 0.13/0.35 % Number of cores: 8
% 0.13/0.35 % Python version: Python 3.6.8
% 0.13/0.35 % Running in FO mode
% 0.62/0.65 % Total configuration time : 435
% 0.62/0.65 % Estimated wc time : 1092
% 0.62/0.65 % Estimated cpu time (7 cpus) : 156.0
% 0.62/0.70 % /export/starexec/sandbox/solver/bin/fo/fo6_bce.sh running for 75s
% 0.62/0.73 % /export/starexec/sandbox/solver/bin/fo/fo3_bce.sh running for 75s
% 0.87/0.75 % /export/starexec/sandbox/solver/bin/fo/fo1_av.sh running for 75s
% 0.87/0.75 % /export/starexec/sandbox/solver/bin/fo/fo7.sh running for 63s
% 0.87/0.75 % /export/starexec/sandbox/solver/bin/fo/fo13.sh running for 50s
% 0.87/0.75 % /export/starexec/sandbox/solver/bin/fo/fo5.sh running for 50s
% 0.87/0.76 % /export/starexec/sandbox/solver/bin/fo/fo4.sh running for 50s
% 0.91/0.86 % Solved by fo/fo3_bce.sh.
% 0.91/0.86 % BCE start: 4
% 0.91/0.86 % BCE eliminated: 0
% 0.91/0.86 % PE start: 4
% 0.91/0.86 logic: eq
% 0.91/0.86 % PE eliminated: 0
% 0.91/0.86 % done 152 iterations in 0.110s
% 0.91/0.86 % SZS status Theorem for '/export/starexec/sandbox/benchmark/theBenchmark.p'
% 0.91/0.86 % SZS output start Refutation
% 0.91/0.86 thf(multiply_type, type, multiply: $i > $i > $i).
% 0.91/0.86 thf(a2_type, type, a2: $i).
% 0.91/0.86 thf(b2_type, type, b2: $i).
% 0.91/0.86 thf(divide_type, type, divide: $i > $i > $i).
% 0.91/0.86 thf(inverse_type, type, inverse: $i > $i).
% 0.91/0.86 thf(prove_these_axioms_2, conjecture,
% 0.91/0.86 (( multiply @ ( multiply @ ( inverse @ b2 ) @ b2 ) @ a2 ) = ( a2 ))).
% 0.91/0.86 thf(zf_stmt_0, negated_conjecture,
% 0.91/0.86 (( multiply @ ( multiply @ ( inverse @ b2 ) @ b2 ) @ a2 ) != ( a2 )),
% 0.91/0.86 inference('cnf.neg', [status(esa)], [prove_these_axioms_2])).
% 0.91/0.86 thf(zip_derived_cl3, plain,
% 0.91/0.86 (((multiply @ (multiply @ (inverse @ b2) @ b2) @ a2) != (a2))),
% 0.91/0.86 inference('cnf', [status(esa)], [zf_stmt_0])).
% 0.91/0.86 thf(multiply, axiom,
% 0.91/0.86 (( multiply @ A @ B ) =
% 0.91/0.86 ( divide @ A @ ( divide @ ( divide @ C @ C ) @ B ) ))).
% 0.91/0.86 thf(zip_derived_cl1, plain,
% 0.91/0.86 (![X0 : $i, X1 : $i, X2 : $i]:
% 0.91/0.86 ((multiply @ X0 @ X2)
% 0.91/0.86 = (divide @ X0 @ (divide @ (divide @ X1 @ X1) @ X2)))),
% 0.91/0.86 inference('cnf', [status(esa)], [multiply])).
% 0.91/0.86 thf(inverse, axiom, (( inverse @ A ) = ( divide @ ( divide @ B @ B ) @ A ))).
% 0.91/0.86 thf(zip_derived_cl2, plain,
% 0.91/0.86 (![X0 : $i, X1 : $i]:
% 0.91/0.86 ((inverse @ X1) = (divide @ (divide @ X0 @ X0) @ X1))),
% 0.91/0.86 inference('cnf', [status(esa)], [inverse])).
% 0.91/0.86 thf(zip_derived_cl33, plain,
% 0.91/0.86 (![X0 : $i, X2 : $i]:
% 0.91/0.86 ((multiply @ X0 @ X2) = (divide @ X0 @ (inverse @ X2)))),
% 0.91/0.86 inference('demod', [status(thm)], [zip_derived_cl1, zip_derived_cl2])).
% 0.91/0.86 thf(zip_derived_cl33, plain,
% 0.91/0.86 (![X0 : $i, X2 : $i]:
% 0.91/0.86 ((multiply @ X0 @ X2) = (divide @ X0 @ (inverse @ X2)))),
% 0.91/0.86 inference('demod', [status(thm)], [zip_derived_cl1, zip_derived_cl2])).
% 0.91/0.86 thf(zip_derived_cl2, plain,
% 0.91/0.86 (![X0 : $i, X1 : $i]:
% 0.91/0.86 ((inverse @ X1) = (divide @ (divide @ X0 @ X0) @ X1))),
% 0.91/0.86 inference('cnf', [status(esa)], [inverse])).
% 0.91/0.86 thf(zip_derived_cl34, plain, (((inverse @ (inverse @ a2)) != (a2))),
% 0.91/0.86 inference('demod', [status(thm)],
% 0.91/0.86 [zip_derived_cl3, zip_derived_cl33, zip_derived_cl33,
% 0.91/0.86 zip_derived_cl2])).
% 0.91/0.86 thf(zip_derived_cl2, plain,
% 0.91/0.86 (![X0 : $i, X1 : $i]:
% 0.91/0.86 ((inverse @ X1) = (divide @ (divide @ X0 @ X0) @ X1))),
% 0.91/0.86 inference('cnf', [status(esa)], [inverse])).
% 0.91/0.86 thf(zip_derived_cl2, plain,
% 0.91/0.86 (![X0 : $i, X1 : $i]:
% 0.91/0.86 ((inverse @ X1) = (divide @ (divide @ X0 @ X0) @ X1))),
% 0.91/0.86 inference('cnf', [status(esa)], [inverse])).
% 0.91/0.86 thf(single_axiom, axiom,
% 0.91/0.86 (( divide @
% 0.91/0.86 ( divide @
% 0.91/0.86 ( divide @ A @ A ) @
% 0.91/0.86 ( divide @
% 0.91/0.86 A @
% 0.91/0.86 ( divide @ B @ ( divide @ ( divide @ ( divide @ A @ A ) @ A ) @ C ) ) ) ) @
% 0.91/0.86 C ) =
% 0.91/0.86 ( B ))).
% 0.91/0.86 thf(zip_derived_cl0, plain,
% 0.91/0.86 (![X0 : $i, X1 : $i, X2 : $i]:
% 0.91/0.86 ((divide @
% 0.91/0.86 (divide @ (divide @ X1 @ X1) @
% 0.91/0.86 (divide @ X1 @
% 0.91/0.86 (divide @ X0 @ (divide @ (divide @ (divide @ X1 @ X1) @ X1) @ X2)))) @
% 0.91/0.86 X2) = (X0))),
% 0.91/0.86 inference('cnf', [status(esa)], [single_axiom])).
% 0.91/0.86 thf(zip_derived_cl2, plain,
% 0.91/0.86 (![X0 : $i, X1 : $i]:
% 0.91/0.86 ((inverse @ X1) = (divide @ (divide @ X0 @ X0) @ X1))),
% 0.91/0.86 inference('cnf', [status(esa)], [inverse])).
% 0.91/0.86 thf(zip_derived_cl2, plain,
% 0.91/0.86 (![X0 : $i, X1 : $i]:
% 0.91/0.86 ((inverse @ X1) = (divide @ (divide @ X0 @ X0) @ X1))),
% 0.91/0.86 inference('cnf', [status(esa)], [inverse])).
% 0.91/0.86 thf(zip_derived_cl16, plain,
% 0.91/0.86 (![X0 : $i, X1 : $i, X2 : $i]:
% 0.91/0.86 ((divide @
% 0.91/0.86 (inverse @
% 0.91/0.86 (divide @ X1 @ (divide @ X0 @ (divide @ (inverse @ X1) @ X2)))) @
% 0.91/0.86 X2) = (X0))),
% 0.91/0.86 inference('demod', [status(thm)],
% 0.91/0.86 [zip_derived_cl0, zip_derived_cl2, zip_derived_cl2])).
% 0.91/0.86 thf(zip_derived_cl19, plain,
% 0.91/0.86 (![X0 : $i, X1 : $i, X2 : $i]:
% 0.91/0.86 ((divide @
% 0.91/0.86 (inverse @
% 0.91/0.86 (inverse @
% 0.91/0.86 (divide @ X2 @ (divide @ (inverse @ (divide @ X1 @ X1)) @ X0)))) @
% 0.91/0.86 X0) = (X2))),
% 0.91/0.86 inference('sup+', [status(thm)], [zip_derived_cl2, zip_derived_cl16])).
% 0.91/0.86 thf(zip_derived_cl2, plain,
% 0.91/0.86 (![X0 : $i, X1 : $i]:
% 0.91/0.86 ((inverse @ X1) = (divide @ (divide @ X0 @ X0) @ X1))),
% 0.91/0.86 inference('cnf', [status(esa)], [inverse])).
% 0.91/0.86 thf(zip_derived_cl2, plain,
% 0.91/0.86 (![X0 : $i, X1 : $i]:
% 0.91/0.86 ((inverse @ X1) = (divide @ (divide @ X0 @ X0) @ X1))),
% 0.91/0.86 inference('cnf', [status(esa)], [inverse])).
% 0.91/0.86 thf(zip_derived_cl4, plain,
% 0.91/0.86 (![X0 : $i, X1 : $i]:
% 0.91/0.86 ((inverse @ X1) = (divide @ (inverse @ (divide @ X0 @ X0)) @ X1))),
% 0.91/0.86 inference('sup+', [status(thm)], [zip_derived_cl2, zip_derived_cl2])).
% 0.91/0.86 thf(zip_derived_cl29, plain,
% 0.91/0.86 (![X0 : $i, X2 : $i]:
% 0.91/0.86 ((divide @ (inverse @ (inverse @ (divide @ X2 @ (inverse @ X0)))) @ X0)
% 0.91/0.86 = (X2))),
% 0.91/0.86 inference('demod', [status(thm)], [zip_derived_cl19, zip_derived_cl4])).
% 0.91/0.86 thf(zip_derived_cl38, plain,
% 0.91/0.86 (![X0 : $i, X1 : $i]:
% 0.91/0.86 ((divide @ (inverse @ (inverse @ (inverse @ (inverse @ X0)))) @ X0)
% 0.91/0.86 = (divide @ X1 @ X1))),
% 0.91/0.86 inference('sup+', [status(thm)], [zip_derived_cl2, zip_derived_cl29])).
% 0.91/0.86 thf(zip_derived_cl38, plain,
% 0.91/0.86 (![X0 : $i, X1 : $i]:
% 0.91/0.86 ((divide @ (inverse @ (inverse @ (inverse @ (inverse @ X0)))) @ X0)
% 0.91/0.86 = (divide @ X1 @ X1))),
% 0.91/0.86 inference('sup+', [status(thm)], [zip_derived_cl2, zip_derived_cl29])).
% 0.91/0.86 thf(zip_derived_cl56, plain,
% 0.91/0.86 (![X0 : $i, X1 : $i]: ((divide @ X0 @ X0) = (divide @ X1 @ X1))),
% 0.91/0.86 inference('sup+', [status(thm)], [zip_derived_cl38, zip_derived_cl38])).
% 0.91/0.86 thf(zip_derived_cl2, plain,
% 0.91/0.86 (![X0 : $i, X1 : $i]:
% 0.91/0.86 ((inverse @ X1) = (divide @ (divide @ X0 @ X0) @ X1))),
% 0.91/0.86 inference('cnf', [status(esa)], [inverse])).
% 0.91/0.86 thf(zip_derived_cl84, plain,
% 0.91/0.86 (![X0 : $i, X1 : $i]:
% 0.91/0.86 ((inverse @ (divide @ X1 @ X1)) = (divide @ X0 @ X0))),
% 0.91/0.86 inference('sup+', [status(thm)], [zip_derived_cl56, zip_derived_cl2])).
% 0.91/0.86 thf(zip_derived_cl84, plain,
% 0.91/0.86 (![X0 : $i, X1 : $i]:
% 0.91/0.86 ((inverse @ (divide @ X1 @ X1)) = (divide @ X0 @ X0))),
% 0.91/0.86 inference('sup+', [status(thm)], [zip_derived_cl56, zip_derived_cl2])).
% 0.91/0.86 thf(zip_derived_cl16, plain,
% 0.91/0.86 (![X0 : $i, X1 : $i, X2 : $i]:
% 0.91/0.86 ((divide @
% 0.91/0.86 (inverse @
% 0.91/0.86 (divide @ X1 @ (divide @ X0 @ (divide @ (inverse @ X1) @ X2)))) @
% 0.91/0.86 X2) = (X0))),
% 0.91/0.86 inference('demod', [status(thm)],
% 0.91/0.86 [zip_derived_cl0, zip_derived_cl2, zip_derived_cl2])).
% 0.91/0.86 thf(zip_derived_cl16, plain,
% 0.91/0.86 (![X0 : $i, X1 : $i, X2 : $i]:
% 0.91/0.86 ((divide @
% 0.91/0.86 (inverse @
% 0.91/0.86 (divide @ X1 @ (divide @ X0 @ (divide @ (inverse @ X1) @ X2)))) @
% 0.91/0.86 X2) = (X0))),
% 0.91/0.86 inference('demod', [status(thm)],
% 0.91/0.86 [zip_derived_cl0, zip_derived_cl2, zip_derived_cl2])).
% 0.91/0.86 thf(zip_derived_cl18, plain,
% 0.91/0.86 (![X0 : $i, X1 : $i, X2 : $i, X3 : $i]:
% 0.91/0.86 ((divide @
% 0.91/0.86 (inverse @
% 0.91/0.86 (divide @
% 0.91/0.86 (divide @ X3 @ (divide @ X0 @ (divide @ (inverse @ X3) @ X2))) @
% 0.91/0.86 (divide @ X1 @ X0))) @
% 0.91/0.86 X2) = (X1))),
% 0.91/0.86 inference('sup+', [status(thm)], [zip_derived_cl16, zip_derived_cl16])).
% 0.91/0.86 thf(zip_derived_cl480, plain,
% 0.91/0.86 (![X0 : $i, X1 : $i, X2 : $i, X3 : $i]:
% 0.91/0.86 ((divide @
% 0.91/0.86 (inverse @
% 0.91/0.86 (divide @
% 0.91/0.86 (divide @ X3 @ (divide @ X1 @ (divide @ (inverse @ X3) @ X2))) @
% 0.91/0.86 (inverse @ (divide @ X0 @ X0)))) @
% 0.91/0.86 X2) = (X1))),
% 0.91/0.86 inference('sup+', [status(thm)], [zip_derived_cl84, zip_derived_cl18])).
% 0.91/0.86 thf(zip_derived_cl84, plain,
% 0.91/0.86 (![X0 : $i, X1 : $i]:
% 0.91/0.86 ((inverse @ (divide @ X1 @ X1)) = (divide @ X0 @ X0))),
% 0.91/0.86 inference('sup+', [status(thm)], [zip_derived_cl56, zip_derived_cl2])).
% 0.91/0.86 thf(zip_derived_cl16, plain,
% 0.91/0.86 (![X0 : $i, X1 : $i, X2 : $i]:
% 0.91/0.86 ((divide @
% 0.91/0.86 (inverse @
% 0.91/0.86 (divide @ X1 @ (divide @ X0 @ (divide @ (inverse @ X1) @ X2)))) @
% 0.91/0.86 X2) = (X0))),
% 0.91/0.86 inference('demod', [status(thm)],
% 0.91/0.86 [zip_derived_cl0, zip_derived_cl2, zip_derived_cl2])).
% 0.91/0.86 thf(zip_derived_cl16, plain,
% 0.91/0.86 (![X0 : $i, X1 : $i, X2 : $i]:
% 0.91/0.86 ((divide @
% 0.91/0.86 (inverse @
% 0.91/0.86 (divide @ X1 @ (divide @ X0 @ (divide @ (inverse @ X1) @ X2)))) @
% 0.91/0.86 X2) = (X0))),
% 0.91/0.86 inference('demod', [status(thm)],
% 0.91/0.86 [zip_derived_cl0, zip_derived_cl2, zip_derived_cl2])).
% 0.91/0.86 thf(zip_derived_cl17, plain,
% 0.91/0.86 (![X0 : $i, X1 : $i, X2 : $i, X3 : $i]:
% 0.91/0.86 ((divide @ (inverse @ (divide @ X2 @ X0)) @ X1)
% 0.91/0.86 = (inverse @
% 0.91/0.86 (divide @ X3 @
% 0.91/0.86 (divide @ X0 @
% 0.91/0.86 (divide @ (inverse @ X3) @ (divide @ (inverse @ X2) @ X1))))))),
% 0.91/0.86 inference('sup+', [status(thm)], [zip_derived_cl16, zip_derived_cl16])).
% 0.91/0.86 thf(zip_derived_cl16, plain,
% 0.91/0.86 (![X0 : $i, X1 : $i, X2 : $i]:
% 0.91/0.86 ((divide @
% 0.91/0.86 (inverse @
% 0.91/0.86 (divide @ X1 @ (divide @ X0 @ (divide @ (inverse @ X1) @ X2)))) @
% 0.91/0.86 X2) = (X0))),
% 0.91/0.86 inference('demod', [status(thm)],
% 0.91/0.86 [zip_derived_cl0, zip_derived_cl2, zip_derived_cl2])).
% 0.91/0.86 thf(zip_derived_cl2, plain,
% 0.91/0.86 (![X0 : $i, X1 : $i]:
% 0.91/0.86 ((inverse @ X1) = (divide @ (divide @ X0 @ X0) @ X1))),
% 0.91/0.86 inference('cnf', [status(esa)], [inverse])).
% 0.91/0.86 thf(zip_derived_cl531, plain,
% 0.91/0.86 (![X1 : $i, X3 : $i]:
% 0.91/0.86 ((inverse @ (divide @ X3 @ (inverse @ (divide @ (inverse @ X3) @ X1))))
% 0.91/0.86 = (X1))),
% 0.91/0.86 inference('demod', [status(thm)],
% 0.91/0.86 [zip_derived_cl480, zip_derived_cl84, zip_derived_cl17,
% 0.91/0.86 zip_derived_cl16, zip_derived_cl2])).
% 0.91/0.86 thf(zip_derived_cl572, plain,
% 0.91/0.86 (![X0 : $i, X1 : $i]:
% 0.91/0.86 ((inverse @ (divide @ X1 @ (divide @ X0 @ X0))) = (inverse @ X1))),
% 0.91/0.86 inference('sup+', [status(thm)], [zip_derived_cl84, zip_derived_cl531])).
% 0.91/0.86 thf(zip_derived_cl2, plain,
% 0.91/0.86 (![X0 : $i, X1 : $i]:
% 0.91/0.86 ((inverse @ X1) = (divide @ (divide @ X0 @ X0) @ X1))),
% 0.91/0.86 inference('cnf', [status(esa)], [inverse])).
% 0.91/0.86 thf(zip_derived_cl531, plain,
% 0.91/0.86 (![X1 : $i, X3 : $i]:
% 0.91/0.86 ((inverse @ (divide @ X3 @ (inverse @ (divide @ (inverse @ X3) @ X1))))
% 0.91/0.86 = (X1))),
% 0.91/0.86 inference('demod', [status(thm)],
% 0.91/0.86 [zip_derived_cl480, zip_derived_cl84, zip_derived_cl17,
% 0.91/0.86 zip_derived_cl16, zip_derived_cl2])).
% 0.91/0.86 thf(zip_derived_cl567, plain,
% 0.91/0.86 (![X0 : $i, X1 : $i]:
% 0.91/0.86 ((inverse @
% 0.91/0.86 (inverse @
% 0.91/0.86 (inverse @ (divide @ (inverse @ (divide @ X1 @ X1)) @ X0))))
% 0.91/0.86 = (X0))),
% 0.91/0.86 inference('sup+', [status(thm)], [zip_derived_cl2, zip_derived_cl531])).
% 0.91/0.86 thf(zip_derived_cl4, plain,
% 0.91/0.86 (![X0 : $i, X1 : $i]:
% 0.91/0.86 ((inverse @ X1) = (divide @ (inverse @ (divide @ X0 @ X0)) @ X1))),
% 0.91/0.86 inference('sup+', [status(thm)], [zip_derived_cl2, zip_derived_cl2])).
% 0.91/0.86 thf(zip_derived_cl595, plain,
% 0.91/0.86 (![X0 : $i]: ((inverse @ (inverse @ (inverse @ (inverse @ X0)))) = (X0))),
% 0.91/0.86 inference('demod', [status(thm)], [zip_derived_cl567, zip_derived_cl4])).
% 0.91/0.86 thf(zip_derived_cl645, plain,
% 0.91/0.86 (![X0 : $i, X1 : $i]:
% 0.91/0.86 ((inverse @ (inverse @ (inverse @ (inverse @ X0))))
% 0.91/0.86 = (divide @ X0 @ (divide @ X1 @ X1)))),
% 0.91/0.86 inference('sup+', [status(thm)], [zip_derived_cl572, zip_derived_cl595])).
% 0.91/0.86 thf(zip_derived_cl595, plain,
% 0.91/0.86 (![X0 : $i]: ((inverse @ (inverse @ (inverse @ (inverse @ X0)))) = (X0))),
% 0.91/0.86 inference('demod', [status(thm)], [zip_derived_cl567, zip_derived_cl4])).
% 0.91/0.86 thf(zip_derived_cl693, plain,
% 0.91/0.86 (![X0 : $i, X1 : $i]: ((X0) = (divide @ X0 @ (divide @ X1 @ X1)))),
% 0.91/0.86 inference('demod', [status(thm)], [zip_derived_cl645, zip_derived_cl595])).
% 0.91/0.86 thf(zip_derived_cl29, plain,
% 0.91/0.86 (![X0 : $i, X2 : $i]:
% 0.91/0.86 ((divide @ (inverse @ (inverse @ (divide @ X2 @ (inverse @ X0)))) @ X0)
% 0.91/0.86 = (X2))),
% 0.91/0.86 inference('demod', [status(thm)], [zip_derived_cl19, zip_derived_cl4])).
% 0.91/0.86 thf(zip_derived_cl731, plain,
% 0.91/0.86 (![X0 : $i, X1 : $i]:
% 0.91/0.86 ((inverse @ (inverse @ (divide @ X1 @ (inverse @ (divide @ X0 @ X0)))))
% 0.91/0.86 = (X1))),
% 0.91/0.86 inference('sup+', [status(thm)], [zip_derived_cl693, zip_derived_cl29])).
% 0.91/0.86 thf(zip_derived_cl84, plain,
% 0.91/0.86 (![X0 : $i, X1 : $i]:
% 0.91/0.86 ((inverse @ (divide @ X1 @ X1)) = (divide @ X0 @ X0))),
% 0.91/0.86 inference('sup+', [status(thm)], [zip_derived_cl56, zip_derived_cl2])).
% 0.91/0.86 thf(zip_derived_cl693, plain,
% 0.91/0.86 (![X0 : $i, X1 : $i]: ((X0) = (divide @ X0 @ (divide @ X1 @ X1)))),
% 0.91/0.86 inference('demod', [status(thm)], [zip_derived_cl645, zip_derived_cl595])).
% 0.91/0.86 thf(zip_derived_cl763, plain,
% 0.91/0.86 (![X1 : $i]: ((inverse @ (inverse @ X1)) = (X1))),
% 0.91/0.86 inference('demod', [status(thm)],
% 0.91/0.86 [zip_derived_cl731, zip_derived_cl84, zip_derived_cl693])).
% 0.91/0.86 thf(zip_derived_cl767, plain, (((a2) != (a2))),
% 0.91/0.86 inference('demod', [status(thm)], [zip_derived_cl34, zip_derived_cl763])).
% 0.91/0.86 thf(zip_derived_cl768, plain, ($false),
% 0.91/0.86 inference('simplify', [status(thm)], [zip_derived_cl767])).
% 0.91/0.86
% 0.91/0.86 % SZS output end Refutation
% 0.91/0.86
% 0.91/0.86
% 0.91/0.86 % Terminating...
% 0.96/0.96 % Runner terminated.
% 1.82/0.98 % Zipperpin 1.5 exiting
%------------------------------------------------------------------------------