%------------------------------------------------------------------------------
% File : Zipperpin---2.1.9999
% Problem : GRP531-1 : TPTP v9.2.0. Released v2.6.0.
% Transfm : none
% Format : tptp:raw
% Command : python3 /export/starexec/sandbox2/solver/bin/portfolio.lams.parallel.py %s %d /export/starexec/sandbox2/tmp/tmp.nROLp1ygN9 true
% Computer : n001.cluster.edu
% Model : x86_64 x86_64
% CPU : Intel(R) Xeon(R) CPU E5-2620 v4 2.10GHz
% Memory : 8042.1875MB
% OS : Linux 3.10.0-693.el7.x86_64
% CPULimit : 300s
% WCLimit : 300s
% DateTime : Thu Oct 2 04:36:37 PM UTC 2025
% Result : Unsatisfiable 4.30s 1.21s
% Output : Refutation 4.30s
% Verified :
% SZS Type : -
% Comments :
%------------------------------------------------------------------------------
%----WARNING: Could not form TPTP format derivation
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.06/0.13 % Problem : GRP531-1 : TPTP v9.2.0. Released v2.6.0.
% 0.06/0.14 % Command : python3 /export/starexec/sandbox2/solver/bin/portfolio.lams.parallel.py %s %d /export/starexec/sandbox2/tmp/tmp.nROLp1ygN9 true
% 0.14/0.36 % Computer : n001.cluster.edu
% 0.14/0.36 % Model : x86_64 x86_64
% 0.14/0.36 % CPU : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.14/0.36 % Memory : 8042.1875MB
% 0.14/0.36 % OS : Linux 3.10.0-693.el7.x86_64
% 0.14/0.36 % CPULimit : 300
% 0.14/0.36 % WCLimit : 300
% 0.14/0.36 % DateTime : Wed Oct 1 14:27:38 EDT 2025
% 0.14/0.36 % CPUTime :
% 0.14/0.36 % Running portfolio for 300 s
% 0.14/0.36 % File : /export/starexec/sandbox2/benchmark/theBenchmark.p
% 0.14/0.36 % Number of cores: 8
% 0.14/0.36 % Python version: Python 3.6.8
% 0.14/0.37 % Running in FO mode
% 0.51/0.62 % Total configuration time : 435
% 0.51/0.62 % Estimated wc time : 1092
% 0.51/0.62 % Estimated cpu time (7 cpus) : 156.0
% 0.52/0.69 % /export/starexec/sandbox2/solver/bin/fo/fo6_bce.sh running for 75s
% 0.52/0.73 % /export/starexec/sandbox2/solver/bin/fo/fo3_bce.sh running for 75s
% 0.52/0.73 % /export/starexec/sandbox2/solver/bin/fo/fo1_av.sh running for 75s
% 0.52/0.73 % /export/starexec/sandbox2/solver/bin/fo/fo13.sh running for 50s
% 0.52/0.74 % /export/starexec/sandbox2/solver/bin/fo/fo7.sh running for 63s
% 0.52/0.74 % /export/starexec/sandbox2/solver/bin/fo/fo5.sh running for 50s
% 0.52/0.74 % /export/starexec/sandbox2/solver/bin/fo/fo4.sh running for 50s
% 4.30/1.21 % Solved by fo/fo7.sh.
% 4.30/1.21 % done 400 iterations in 0.453s
% 4.30/1.21 % SZS status Theorem for '/export/starexec/sandbox2/benchmark/theBenchmark.p'
% 4.30/1.21 % SZS output start Refutation
% 4.30/1.21 thf(multiply_type, type, multiply: $i > $i > $i).
% 4.30/1.21 thf(c3_type, type, c3: $i).
% 4.30/1.21 thf(b3_type, type, b3: $i).
% 4.30/1.21 thf(a3_type, type, a3: $i).
% 4.30/1.21 thf(divide_type, type, divide: $i > $i > $i).
% 4.30/1.21 thf(inverse_type, type, inverse: $i > $i).
% 4.30/1.21 thf(multiply, axiom,
% 4.30/1.21 (( multiply @ A @ B ) =
% 4.30/1.21 ( divide @ A @ ( divide @ ( divide @ C @ C ) @ B ) ))).
% 4.30/1.21 thf(zip_derived_cl1, plain,
% 4.30/1.21 (![X0 : $i, X1 : $i, X2 : $i]:
% 4.30/1.21 ((multiply @ X0 @ X2)
% 4.30/1.21 = (divide @ X0 @ (divide @ (divide @ X1 @ X1) @ X2)))),
% 4.30/1.21 inference('cnf', [status(esa)], [multiply])).
% 4.30/1.21 thf(inverse, axiom, (( inverse @ A ) = ( divide @ ( divide @ B @ B ) @ A ))).
% 4.30/1.21 thf(zip_derived_cl2, plain,
% 4.30/1.21 (![X0 : $i, X1 : $i]:
% 4.30/1.21 ((inverse @ X1) = (divide @ (divide @ X0 @ X0) @ X1))),
% 4.30/1.21 inference('cnf', [status(esa)], [inverse])).
% 4.30/1.21 thf(zip_derived_cl1, plain,
% 4.30/1.21 (![X0 : $i, X1 : $i, X2 : $i]:
% 4.30/1.21 ((multiply @ X0 @ X2)
% 4.30/1.21 = (divide @ X0 @ (divide @ (divide @ X1 @ X1) @ X2)))),
% 4.30/1.21 inference('cnf', [status(esa)], [multiply])).
% 4.30/1.21 thf(zip_derived_cl2, plain,
% 4.30/1.21 (![X0 : $i, X1 : $i]:
% 4.30/1.21 ((inverse @ X1) = (divide @ (divide @ X0 @ X0) @ X1))),
% 4.30/1.21 inference('cnf', [status(esa)], [inverse])).
% 4.30/1.21 thf(zip_derived_cl1, plain,
% 4.30/1.21 (![X0 : $i, X1 : $i, X2 : $i]:
% 4.30/1.21 ((multiply @ X0 @ X2)
% 4.30/1.21 = (divide @ X0 @ (divide @ (divide @ X1 @ X1) @ X2)))),
% 4.30/1.21 inference('cnf', [status(esa)], [multiply])).
% 4.30/1.21 thf(zip_derived_cl1, plain,
% 4.30/1.21 (![X0 : $i, X1 : $i, X2 : $i]:
% 4.30/1.21 ((multiply @ X0 @ X2)
% 4.30/1.21 = (divide @ X0 @ (divide @ (divide @ X1 @ X1) @ X2)))),
% 4.30/1.21 inference('cnf', [status(esa)], [multiply])).
% 4.30/1.21 thf(zip_derived_cl1, plain,
% 4.30/1.21 (![X0 : $i, X1 : $i, X2 : $i]:
% 4.30/1.21 ((multiply @ X0 @ X2)
% 4.30/1.21 = (divide @ X0 @ (divide @ (divide @ X1 @ X1) @ X2)))),
% 4.30/1.21 inference('cnf', [status(esa)], [multiply])).
% 4.30/1.21 thf(prove_these_axioms_3, conjecture,
% 4.30/1.21 (( multiply @ ( multiply @ a3 @ b3 ) @ c3 ) =
% 4.30/1.21 ( multiply @ a3 @ ( multiply @ b3 @ c3 ) ))).
% 4.30/1.21 thf(zf_stmt_0, negated_conjecture,
% 4.30/1.21 (( multiply @ ( multiply @ a3 @ b3 ) @ c3 ) !=
% 4.30/1.21 ( multiply @ a3 @ ( multiply @ b3 @ c3 ) )),
% 4.30/1.21 inference('cnf.neg', [status(esa)], [prove_these_axioms_3])).
% 4.30/1.21 thf(zip_derived_cl3, plain,
% 4.30/1.21 (((multiply @ (multiply @ a3 @ b3) @ c3)
% 4.30/1.21 != (multiply @ a3 @ (multiply @ b3 @ c3)))),
% 4.30/1.21 inference('cnf', [status(esa)], [zf_stmt_0])).
% 4.30/1.21 thf(zip_derived_cl58, plain,
% 4.30/1.21 (![X0 : $i]:
% 4.30/1.21 ((divide @ (multiply @ a3 @ b3) @ (divide @ (divide @ X0 @ X0) @ c3))
% 4.30/1.21 != (multiply @ a3 @ (multiply @ b3 @ c3)))),
% 4.30/1.21 inference('sup-', [status(thm)], [zip_derived_cl1, zip_derived_cl3])).
% 4.30/1.21 thf(zip_derived_cl79, plain,
% 4.30/1.21 (![X0 : $i, X1 : $i]:
% 4.30/1.21 ((divide @ (multiply @ a3 @ b3) @ (divide @ (divide @ X1 @ X1) @ c3))
% 4.30/1.21 != (divide @ a3 @
% 4.30/1.21 (divide @ (divide @ X0 @ X0) @ (multiply @ b3 @ c3))))),
% 4.30/1.21 inference('sup-', [status(thm)], [zip_derived_cl1, zip_derived_cl58])).
% 4.30/1.21 thf(zip_derived_cl225, plain,
% 4.30/1.21 (![X0 : $i]:
% 4.30/1.21 ((multiply @ (multiply @ a3 @ b3) @ c3)
% 4.30/1.21 != (divide @ a3 @
% 4.30/1.21 (divide @ (divide @ X0 @ X0) @ (multiply @ b3 @ c3))))),
% 4.30/1.21 inference('sup-', [status(thm)], [zip_derived_cl1, zip_derived_cl79])).
% 4.30/1.21 thf(zip_derived_cl381, plain,
% 4.30/1.21 (((multiply @ (multiply @ a3 @ b3) @ c3)
% 4.30/1.21 != (divide @ a3 @ (inverse @ (multiply @ b3 @ c3))))),
% 4.30/1.21 inference('sup-', [status(thm)], [zip_derived_cl2, zip_derived_cl225])).
% 4.30/1.21 thf(zip_derived_cl390, plain,
% 4.30/1.21 (![X0 : $i]:
% 4.30/1.21 ((multiply @ (divide @ a3 @ (divide @ (divide @ X0 @ X0) @ b3)) @ c3)
% 4.30/1.21 != (divide @ a3 @ (inverse @ (multiply @ b3 @ c3))))),
% 4.30/1.21 inference('sup-', [status(thm)], [zip_derived_cl1, zip_derived_cl381])).
% 4.30/1.21 thf(zip_derived_cl625, plain,
% 4.30/1.21 (((multiply @ (divide @ a3 @ (inverse @ b3)) @ c3)
% 4.30/1.21 != (divide @ a3 @ (inverse @ (multiply @ b3 @ c3))))),
% 4.30/1.21 inference('sup-', [status(thm)], [zip_derived_cl2, zip_derived_cl390])).
% 4.30/1.21 thf(single_axiom, axiom,
% 4.30/1.21 (( divide @ ( divide @ A @ ( divide @ B @ C ) ) @ ( divide @ A @ B ) ) =
% 4.30/1.21 ( C ))).
% 4.30/1.21 thf(zip_derived_cl0, plain,
% 4.30/1.21 (![X0 : $i, X1 : $i, X2 : $i]:
% 4.30/1.21 ((divide @ (divide @ X1 @ (divide @ X2 @ X0)) @ (divide @ X1 @ X2))
% 4.30/1.21 = (X0))),
% 4.30/1.21 inference('cnf', [status(esa)], [single_axiom])).
% 4.30/1.21 thf(zip_derived_cl2, plain,
% 4.30/1.21 (![X0 : $i, X1 : $i]:
% 4.30/1.21 ((inverse @ X1) = (divide @ (divide @ X0 @ X0) @ X1))),
% 4.30/1.21 inference('cnf', [status(esa)], [inverse])).
% 4.30/1.21 thf(zip_derived_cl0, plain,
% 4.30/1.21 (![X0 : $i, X1 : $i, X2 : $i]:
% 4.30/1.21 ((divide @ (divide @ X1 @ (divide @ X2 @ X0)) @ (divide @ X1 @ X2))
% 4.30/1.21 = (X0))),
% 4.30/1.21 inference('cnf', [status(esa)], [single_axiom])).
% 4.30/1.21 thf(zip_derived_cl0, plain,
% 4.30/1.21 (![X0 : $i, X1 : $i, X2 : $i]:
% 4.30/1.21 ((divide @ (divide @ X1 @ (divide @ X2 @ X0)) @ (divide @ X1 @ X2))
% 4.30/1.21 = (X0))),
% 4.30/1.21 inference('cnf', [status(esa)], [single_axiom])).
% 4.30/1.21 thf(zip_derived_cl8, plain,
% 4.30/1.21 (![X0 : $i, X1 : $i, X2 : $i]:
% 4.30/1.21 ((divide @ X0 @ (divide @ (divide @ X2 @ (divide @ X1 @ X0)) @ X2))
% 4.30/1.21 = (X1))),
% 4.30/1.21 inference('sup+', [status(thm)], [zip_derived_cl0, zip_derived_cl0])).
% 4.30/1.21 thf(zip_derived_cl27, plain,
% 4.30/1.21 (![X0 : $i, X1 : $i, X2 : $i]:
% 4.30/1.21 ((divide @ X0 @ (divide @ (divide @ X2 @ (inverse @ X0)) @ X2))
% 4.30/1.21 = (divide @ X1 @ X1))),
% 4.30/1.21 inference('sup+', [status(thm)], [zip_derived_cl2, zip_derived_cl8])).
% 4.30/1.21 thf(zip_derived_cl2, plain,
% 4.30/1.21 (![X0 : $i, X1 : $i]:
% 4.30/1.21 ((inverse @ X1) = (divide @ (divide @ X0 @ X0) @ X1))),
% 4.30/1.21 inference('cnf', [status(esa)], [inverse])).
% 4.30/1.21 thf(zip_derived_cl8, plain,
% 4.30/1.21 (![X0 : $i, X1 : $i, X2 : $i]:
% 4.30/1.21 ((divide @ X0 @ (divide @ (divide @ X2 @ (divide @ X1 @ X0)) @ X2))
% 4.30/1.21 = (X1))),
% 4.30/1.21 inference('sup+', [status(thm)], [zip_derived_cl0, zip_derived_cl0])).
% 4.30/1.21 thf(zip_derived_cl30, plain,
% 4.30/1.21 (![X0 : $i, X1 : $i]: ((divide @ X0 @ X0) = (divide @ X1 @ X1))),
% 4.30/1.21 inference('demod', [status(thm)],
% 4.30/1.21 [zip_derived_cl27, zip_derived_cl2, zip_derived_cl8])).
% 4.30/1.21 thf(zip_derived_cl8, plain,
% 4.30/1.21 (![X0 : $i, X1 : $i, X2 : $i]:
% 4.30/1.21 ((divide @ X0 @ (divide @ (divide @ X2 @ (divide @ X1 @ X0)) @ X2))
% 4.30/1.21 = (X1))),
% 4.30/1.21 inference('sup+', [status(thm)], [zip_derived_cl0, zip_derived_cl0])).
% 4.30/1.21 thf(zip_derived_cl0, plain,
% 4.30/1.21 (![X0 : $i, X1 : $i, X2 : $i]:
% 4.30/1.21 ((divide @ (divide @ X1 @ (divide @ X2 @ X0)) @ (divide @ X1 @ X2))
% 4.30/1.21 = (X0))),
% 4.30/1.21 inference('cnf', [status(esa)], [single_axiom])).
% 4.30/1.21 thf(zip_derived_cl21, plain,
% 4.30/1.21 (![X0 : $i, X1 : $i, X2 : $i]:
% 4.30/1.21 ((divide @ X0 @ (divide @ X2 @ (divide @ X1 @ (divide @ X0 @ X2))))
% 4.30/1.21 = (X1))),
% 4.30/1.21 inference('sup+', [status(thm)], [zip_derived_cl8, zip_derived_cl0])).
% 4.30/1.21 thf(zip_derived_cl99, plain,
% 4.30/1.21 (![X0 : $i, X1 : $i, X2 : $i]:
% 4.30/1.21 ((divide @ X2 @ (divide @ X1 @ (divide @ X0 @ X0)))
% 4.30/1.21 = (divide @ X2 @ X1))),
% 4.30/1.21 inference('sup+', [status(thm)], [zip_derived_cl30, zip_derived_cl21])).
% 4.30/1.21 thf(zip_derived_cl0, plain,
% 4.30/1.21 (![X0 : $i, X1 : $i, X2 : $i]:
% 4.30/1.21 ((divide @ (divide @ X1 @ (divide @ X2 @ X0)) @ (divide @ X1 @ X2))
% 4.30/1.21 = (X0))),
% 4.30/1.21 inference('cnf', [status(esa)], [single_axiom])).
% 4.30/1.21 thf(zip_derived_cl156, plain,
% 4.30/1.21 (![X0 : $i, X1 : $i, X2 : $i, X3 : $i]:
% 4.30/1.21 ((divide @ (divide @ X3 @ (divide @ X1 @ X0)) @ (divide @ X3 @ X1))
% 4.30/1.21 = (divide @ X0 @ (divide @ X2 @ X2)))),
% 4.30/1.21 inference('sup+', [status(thm)], [zip_derived_cl99, zip_derived_cl0])).
% 4.30/1.21 thf(zip_derived_cl0, plain,
% 4.30/1.21 (![X0 : $i, X1 : $i, X2 : $i]:
% 4.30/1.21 ((divide @ (divide @ X1 @ (divide @ X2 @ X0)) @ (divide @ X1 @ X2))
% 4.30/1.21 = (X0))),
% 4.30/1.21 inference('cnf', [status(esa)], [single_axiom])).
% 4.30/1.21 thf(zip_derived_cl192, plain,
% 4.30/1.21 (![X0 : $i, X2 : $i]: ((X0) = (divide @ X0 @ (divide @ X2 @ X2)))),
% 4.30/1.21 inference('demod', [status(thm)], [zip_derived_cl156, zip_derived_cl0])).
% 4.30/1.21 thf(zip_derived_cl21, plain,
% 4.30/1.21 (![X0 : $i, X1 : $i, X2 : $i]:
% 4.30/1.21 ((divide @ X0 @ (divide @ X2 @ (divide @ X1 @ (divide @ X0 @ X2))))
% 4.30/1.21 = (X1))),
% 4.30/1.21 inference('sup+', [status(thm)], [zip_derived_cl8, zip_derived_cl0])).
% 4.30/1.21 thf(zip_derived_cl275, plain,
% 4.30/1.21 (![X0 : $i, X1 : $i, X2 : $i]:
% 4.30/1.21 ((divide @ X0 @ (divide @ (divide @ X2 @ X2) @ (divide @ X1 @ X0)))
% 4.30/1.21 = (X1))),
% 4.30/1.21 inference('sup+', [status(thm)], [zip_derived_cl192, zip_derived_cl21])).
% 4.30/1.21 thf(zip_derived_cl1, plain,
% 4.30/1.21 (![X0 : $i, X1 : $i, X2 : $i]:
% 4.30/1.21 ((multiply @ X0 @ X2)
% 4.30/1.21 = (divide @ X0 @ (divide @ (divide @ X1 @ X1) @ X2)))),
% 4.30/1.21 inference('cnf', [status(esa)], [multiply])).
% 4.30/1.21 thf(zip_derived_cl1415, plain,
% 4.30/1.21 (![X0 : $i, X1 : $i]: ((multiply @ X1 @ (divide @ X0 @ X1)) = (X0))),
% 4.30/1.21 inference('sup+', [status(thm)], [zip_derived_cl275, zip_derived_cl1])).
% 4.30/1.21 thf(zip_derived_cl1509, plain,
% 4.30/1.21 (![X0 : $i, X1 : $i, X2 : $i]:
% 4.30/1.21 ((multiply @ (divide @ X2 @ X1) @ X0)
% 4.30/1.21 = (divide @ X2 @ (divide @ X1 @ X0)))),
% 4.30/1.21 inference('sup+', [status(thm)], [zip_derived_cl0, zip_derived_cl1415])).
% 4.30/1.21 thf(zip_derived_cl1594, plain,
% 4.30/1.21 (((divide @ a3 @ (divide @ (inverse @ b3) @ c3))
% 4.30/1.21 != (divide @ a3 @ (inverse @ (multiply @ b3 @ c3))))),
% 4.30/1.21 inference('demod', [status(thm)], [zip_derived_cl625, zip_derived_cl1509])).
% 4.30/1.21 thf(zip_derived_cl1641, plain,
% 4.30/1.21 (![X0 : $i]:
% 4.30/1.21 ((divide @ a3 @ (divide @ (inverse @ b3) @ c3))
% 4.30/1.21 != (divide @ a3 @
% 4.30/1.21 (inverse @ (divide @ b3 @ (divide @ (divide @ X0 @ X0) @ c3)))))),
% 4.30/1.21 inference('sup-', [status(thm)], [zip_derived_cl1, zip_derived_cl1594])).
% 4.30/1.21 thf(zip_derived_cl8, plain,
% 4.30/1.21 (![X0 : $i, X1 : $i, X2 : $i]:
% 4.30/1.21 ((divide @ X0 @ (divide @ (divide @ X2 @ (divide @ X1 @ X0)) @ X2))
% 4.30/1.21 = (X1))),
% 4.30/1.21 inference('sup+', [status(thm)], [zip_derived_cl0, zip_derived_cl0])).
% 4.30/1.21 thf(zip_derived_cl21, plain,
% 4.30/1.21 (![X0 : $i, X1 : $i, X2 : $i]:
% 4.30/1.21 ((divide @ X0 @ (divide @ X2 @ (divide @ X1 @ (divide @ X0 @ X2))))
% 4.30/1.21 = (X1))),
% 4.30/1.21 inference('sup+', [status(thm)], [zip_derived_cl8, zip_derived_cl0])).
% 4.30/1.21 thf(zip_derived_cl98, plain,
% 4.30/1.21 (![X0 : $i, X1 : $i, X2 : $i]:
% 4.30/1.21 ((divide @ X2 @ X0)
% 4.30/1.21 = (divide @ (divide @ X2 @ X1) @ (divide @ X0 @ X1)))),
% 4.30/1.21 inference('sup+', [status(thm)], [zip_derived_cl8, zip_derived_cl21])).
% 4.30/1.21 thf(zip_derived_cl0, plain,
% 4.30/1.21 (![X0 : $i, X1 : $i, X2 : $i]:
% 4.30/1.21 ((divide @ (divide @ X1 @ (divide @ X2 @ X0)) @ (divide @ X1 @ X2))
% 4.30/1.21 = (X0))),
% 4.30/1.21 inference('cnf', [status(esa)], [single_axiom])).
% 4.30/1.21 thf(zip_derived_cl130, plain,
% 4.30/1.21 (![X0 : $i, X1 : $i, X2 : $i]:
% 4.30/1.21 ((divide @ (divide @ X1 @ X0) @ (divide @ (divide @ X1 @ X2) @ X0))
% 4.30/1.21 = (X2))),
% 4.30/1.21 inference('sup+', [status(thm)], [zip_derived_cl98, zip_derived_cl0])).
% 4.30/1.21 thf(zip_derived_cl30, plain,
% 4.30/1.21 (![X0 : $i, X1 : $i]: ((divide @ X0 @ X0) = (divide @ X1 @ X1))),
% 4.30/1.21 inference('demod', [status(thm)],
% 4.30/1.21 [zip_derived_cl27, zip_derived_cl2, zip_derived_cl8])).
% 4.30/1.21 thf(zip_derived_cl0, plain,
% 4.30/1.21 (![X0 : $i, X1 : $i, X2 : $i]:
% 4.30/1.21 ((divide @ (divide @ X1 @ (divide @ X2 @ X0)) @ (divide @ X1 @ X2))
% 4.30/1.21 = (X0))),
% 4.30/1.21 inference('cnf', [status(esa)], [single_axiom])).
% 4.30/1.21 thf(zip_derived_cl37, plain,
% 4.30/1.21 (![X0 : $i, X1 : $i, X2 : $i]:
% 4.30/1.21 ((divide @ (divide @ X0 @ X0) @ (divide @ (divide @ X2 @ X1) @ X2))
% 4.30/1.21 = (X1))),
% 4.30/1.21 inference('sup+', [status(thm)], [zip_derived_cl30, zip_derived_cl0])).
% 4.30/1.21 thf(zip_derived_cl2, plain,
% 4.30/1.21 (![X0 : $i, X1 : $i]:
% 4.30/1.21 ((inverse @ X1) = (divide @ (divide @ X0 @ X0) @ X1))),
% 4.30/1.21 inference('cnf', [status(esa)], [inverse])).
% 4.30/1.21 thf(zip_derived_cl652, plain,
% 4.30/1.21 (![X0 : $i, X1 : $i]:
% 4.30/1.21 ((inverse @ (divide @ (divide @ X1 @ X0) @ X1)) = (X0))),
% 4.30/1.21 inference('sup+', [status(thm)], [zip_derived_cl37, zip_derived_cl2])).
% 4.30/1.21 thf(zip_derived_cl974, plain,
% 4.30/1.21 (![X0 : $i, X1 : $i, X2 : $i]:
% 4.30/1.21 ((inverse @ (divide @ X0 @ (divide @ X2 @ X1)))
% 4.30/1.21 = (divide @ (divide @ X2 @ X0) @ X1))),
% 4.30/1.21 inference('sup+', [status(thm)], [zip_derived_cl130, zip_derived_cl652])).
% 4.30/1.21 thf(zip_derived_cl1642, plain,
% 4.30/1.21 (![X0 : $i]:
% 4.30/1.21 ((divide @ a3 @ (divide @ (inverse @ b3) @ c3))
% 4.30/1.21 != (divide @ a3 @ (divide @ (divide @ (divide @ X0 @ X0) @ b3) @ c3)))),
% 4.30/1.21 inference('demod', [status(thm)], [zip_derived_cl1641, zip_derived_cl974])).
% 4.30/1.21 thf(zip_derived_cl2, plain,
% 4.30/1.21 (![X0 : $i, X1 : $i]:
% 4.30/1.21 ((inverse @ X1) = (divide @ (divide @ X0 @ X0) @ X1))),
% 4.30/1.21 inference('cnf', [status(esa)], [inverse])).
% 4.30/1.21 thf(zip_derived_cl1643, plain, ($false),
% 4.30/1.21 inference('simplify_reflect+', [status(thm)],
% 4.30/1.21 [zip_derived_cl1642, zip_derived_cl2])).
% 4.30/1.21
% 4.30/1.21 % SZS output end Refutation
% 4.30/1.21
% 4.30/1.21
% 4.30/1.21 % Terminating...
% 4.30/1.27 % Runner terminated.
% 4.30/1.29 % Zipperpin 1.5 exiting
%------------------------------------------------------------------------------