TSTP Solution File: LCL121-1 by Zipperpin---2.1.9999

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : Zipperpin---2.1.9999
% Problem  : LCL121-1 : TPTP v8.1.2. Released v1.0.0.
% Transfm  : NO INFORMATION
% Format   : NO INFORMATION
% Command  : python3 /export/starexec/sandbox/solver/bin/portfolio.lams.parallel.py %s %d /export/starexec/sandbox/tmp/tmp.ruig8Tcfvj true

% Computer : n024.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 08:58:18 EDT 2023

% Result   : Unsatisfiable 11.41s 2.24s
% Output   : Refutation 11.41s
% Verified : 
% SZS Type : -

% Comments : 
%------------------------------------------------------------------------------
%----WARNING: Could not form TPTP format derivation
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.07/0.12  % Problem  : LCL121-1 : TPTP v8.1.2. Released v1.0.0.
% 0.12/0.13  % Command  : python3 /export/starexec/sandbox/solver/bin/portfolio.lams.parallel.py %s %d /export/starexec/sandbox/tmp/tmp.ruig8Tcfvj true
% 0.13/0.34  % Computer : n024.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 : Thu Aug 24 17:51:54 EDT 2023
% 0.13/0.34  % CPUTime  : 
% 0.13/0.34  % Running portfolio for 300 s
% 0.13/0.34  % File         : /export/starexec/sandbox/benchmark/theBenchmark.p
% 0.13/0.34  % Number of cores: 8
% 0.13/0.35  % Python version: Python 3.6.8
% 0.13/0.35  % Running in FO mode
% 0.51/0.64  % Total configuration time : 435
% 0.51/0.64  % Estimated wc time : 1092
% 0.51/0.64  % Estimated cpu time (7 cpus) : 156.0
% 0.51/0.72  % /export/starexec/sandbox/solver/bin/fo/fo6_bce.sh running for 75s
% 0.51/0.73  % /export/starexec/sandbox/solver/bin/fo/fo3_bce.sh running for 75s
% 0.51/0.73  % /export/starexec/sandbox/solver/bin/fo/fo1_av.sh running for 75s
% 0.54/0.74  % /export/starexec/sandbox/solver/bin/fo/fo7.sh running for 63s
% 0.54/0.75  % /export/starexec/sandbox/solver/bin/fo/fo13.sh running for 50s
% 0.54/0.75  % /export/starexec/sandbox/solver/bin/fo/fo5.sh running for 50s
% 0.54/0.76  % /export/starexec/sandbox/solver/bin/fo/fo4.sh running for 50s
% 11.41/2.24  % Solved by fo/fo13.sh.
% 11.41/2.24  % done 793 iterations in 1.468s
% 11.41/2.24  % SZS status Theorem for '/export/starexec/sandbox/benchmark/theBenchmark.p'
% 11.41/2.24  % SZS output start Refutation
% 11.41/2.24  thf(c_type, type, c: $i).
% 11.41/2.24  thf(is_a_theorem_type, type, is_a_theorem: $i > $o).
% 11.41/2.24  thf(equivalent_type, type, equivalent: $i > $i > $i).
% 11.41/2.24  thf(b_type, type, b: $i).
% 11.41/2.24  thf(a_type, type, a: $i).
% 11.41/2.24  thf(lg_2, axiom,
% 11.41/2.24    (is_a_theorem @
% 11.41/2.24     ( equivalent @
% 11.41/2.24       X @ 
% 11.41/2.24       ( equivalent @
% 11.41/2.24         X @ 
% 11.41/2.24         ( equivalent @
% 11.41/2.24           ( equivalent @ Y @ Z ) @ 
% 11.41/2.24           ( equivalent @ ( equivalent @ Y @ U ) @ ( equivalent @ Z @ U ) ) ) ) ))).
% 11.41/2.24  thf(zip_derived_cl1, plain,
% 11.41/2.24      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i]:
% 11.41/2.24          (is_a_theorem @ 
% 11.41/2.24           (equivalent @ X0 @ 
% 11.41/2.24            (equivalent @ X0 @ 
% 11.41/2.24             (equivalent @ (equivalent @ X1 @ X2) @ 
% 11.41/2.24              (equivalent @ (equivalent @ X1 @ X3) @ (equivalent @ X2 @ X3))))))),
% 11.41/2.24      inference('cnf', [status(esa)], [lg_2])).
% 11.41/2.24  thf(condensed_detachment, axiom,
% 11.41/2.24    (( ~( is_a_theorem @ ( equivalent @ X @ Y ) ) ) | 
% 11.41/2.24     ( ~( is_a_theorem @ X ) ) | ( is_a_theorem @ Y ))).
% 11.41/2.24  thf(zip_derived_cl0, plain,
% 11.41/2.24      (![X0 : $i, X1 : $i]:
% 11.41/2.24         (~ (is_a_theorem @ (equivalent @ X0 @ X1))
% 11.41/2.24          | ~ (is_a_theorem @ X0)
% 11.41/2.24          |  (is_a_theorem @ X1))),
% 11.41/2.24      inference('cnf', [status(esa)], [condensed_detachment])).
% 11.41/2.24  thf(zip_derived_cl4, plain,
% 11.41/2.24      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i]:
% 11.41/2.24         (~ (is_a_theorem @ X3)
% 11.41/2.24          |  (is_a_theorem @ 
% 11.41/2.24              (equivalent @ X3 @ 
% 11.41/2.24               (equivalent @ (equivalent @ X2 @ X1) @ 
% 11.41/2.24                (equivalent @ (equivalent @ X2 @ X0) @ (equivalent @ X1 @ X0))))))),
% 11.41/2.24      inference('s_sup-', [status(thm)], [zip_derived_cl1, zip_derived_cl0])).
% 11.41/2.24  thf(zip_derived_cl0, plain,
% 11.41/2.24      (![X0 : $i, X1 : $i]:
% 11.41/2.24         (~ (is_a_theorem @ (equivalent @ X0 @ X1))
% 11.41/2.24          | ~ (is_a_theorem @ X0)
% 11.41/2.24          |  (is_a_theorem @ X1))),
% 11.41/2.24      inference('cnf', [status(esa)], [condensed_detachment])).
% 11.41/2.24  thf(zip_derived_cl5, plain,
% 11.41/2.24      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i]:
% 11.41/2.24         (~ (is_a_theorem @ X3)
% 11.41/2.24          | ~ (is_a_theorem @ X3)
% 11.41/2.24          |  (is_a_theorem @ 
% 11.41/2.24              (equivalent @ (equivalent @ X2 @ X1) @ 
% 11.41/2.24               (equivalent @ (equivalent @ X2 @ X0) @ (equivalent @ X1 @ X0)))))),
% 11.41/2.24      inference('s_sup-', [status(thm)], [zip_derived_cl4, zip_derived_cl0])).
% 11.41/2.24  thf(zip_derived_cl6, plain,
% 11.41/2.24      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i]:
% 11.41/2.24         ( (is_a_theorem @ 
% 11.41/2.24            (equivalent @ (equivalent @ X2 @ X1) @ 
% 11.41/2.24             (equivalent @ (equivalent @ X2 @ X0) @ (equivalent @ X1 @ X0))))
% 11.41/2.24          | ~ (is_a_theorem @ X3))),
% 11.41/2.24      inference('simplify', [status(thm)], [zip_derived_cl5])).
% 11.41/2.24  thf(zip_derived_cl1, plain,
% 11.41/2.24      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i]:
% 11.41/2.24          (is_a_theorem @ 
% 11.41/2.24           (equivalent @ X0 @ 
% 11.41/2.24            (equivalent @ X0 @ 
% 11.41/2.24             (equivalent @ (equivalent @ X1 @ X2) @ 
% 11.41/2.24              (equivalent @ (equivalent @ X1 @ X3) @ (equivalent @ X2 @ X3))))))),
% 11.41/2.24      inference('cnf', [status(esa)], [lg_2])).
% 11.41/2.24  thf(zip_derived_cl10, plain,
% 11.41/2.24      (![X4 : $i, X5 : $i, X6 : $i]:
% 11.41/2.24          (is_a_theorem @ 
% 11.41/2.24           (equivalent @ (equivalent @ X6 @ X5) @ 
% 11.41/2.24            (equivalent @ (equivalent @ X6 @ X4) @ (equivalent @ X5 @ X4))))),
% 11.41/2.24      inference('s_sup+', [status(thm)], [zip_derived_cl6, zip_derived_cl1])).
% 11.41/2.24  thf(zip_derived_cl6, plain,
% 11.41/2.24      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i]:
% 11.41/2.24         ( (is_a_theorem @ 
% 11.41/2.24            (equivalent @ (equivalent @ X2 @ X1) @ 
% 11.41/2.24             (equivalent @ (equivalent @ X2 @ X0) @ (equivalent @ X1 @ X0))))
% 11.41/2.24          | ~ (is_a_theorem @ X3))),
% 11.41/2.24      inference('simplify', [status(thm)], [zip_derived_cl5])).
% 11.41/2.24  thf(zip_derived_cl0, plain,
% 11.41/2.24      (![X0 : $i, X1 : $i]:
% 11.41/2.24         (~ (is_a_theorem @ (equivalent @ X0 @ X1))
% 11.41/2.24          | ~ (is_a_theorem @ X0)
% 11.41/2.24          |  (is_a_theorem @ X1))),
% 11.41/2.24      inference('cnf', [status(esa)], [condensed_detachment])).
% 11.41/2.24  thf(zip_derived_cl8, plain,
% 11.41/2.24      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i]:
% 11.41/2.24         (~ (is_a_theorem @ X3)
% 11.41/2.24          | ~ (is_a_theorem @ (equivalent @ X2 @ X1))
% 11.41/2.24          |  (is_a_theorem @ 
% 11.41/2.24              (equivalent @ (equivalent @ X2 @ X0) @ (equivalent @ X1 @ X0))))),
% 11.41/2.24      inference('s_sup-', [status(thm)], [zip_derived_cl6, zip_derived_cl0])).
% 11.41/2.24  thf(zip_derived_cl18, plain,
% 11.41/2.24      (![X0 : $i, X1 : $i, X2 : $i]:
% 11.41/2.24         ( (is_a_theorem @ 
% 11.41/2.24            (equivalent @ (equivalent @ X2 @ X0) @ (equivalent @ X1 @ X0)))
% 11.41/2.24          | ~ (is_a_theorem @ (equivalent @ X2 @ X1)))),
% 11.41/2.24      inference('condensation', [status(thm)], [zip_derived_cl8])).
% 11.41/2.24  thf(zip_derived_cl23, plain,
% 11.41/2.24      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i]:
% 11.41/2.24          (is_a_theorem @ 
% 11.41/2.24           (equivalent @ (equivalent @ (equivalent @ X2 @ X1) @ X3) @ 
% 11.41/2.24            (equivalent @ 
% 11.41/2.24             (equivalent @ (equivalent @ X2 @ X0) @ (equivalent @ X1 @ X0)) @ 
% 11.41/2.24             X3)))),
% 11.41/2.24      inference('s_sup-', [status(thm)], [zip_derived_cl10, zip_derived_cl18])).
% 11.41/2.24  thf(zip_derived_cl0, plain,
% 11.41/2.24      (![X0 : $i, X1 : $i]:
% 11.41/2.24         (~ (is_a_theorem @ (equivalent @ X0 @ X1))
% 11.41/2.24          | ~ (is_a_theorem @ X0)
% 11.41/2.24          |  (is_a_theorem @ X1))),
% 11.41/2.24      inference('cnf', [status(esa)], [condensed_detachment])).
% 11.41/2.24  thf(zip_derived_cl24, plain,
% 11.41/2.24      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i]:
% 11.41/2.24         (~ (is_a_theorem @ (equivalent @ (equivalent @ X3 @ X2) @ X0))
% 11.41/2.24          |  (is_a_theorem @ 
% 11.41/2.24              (equivalent @ 
% 11.41/2.24               (equivalent @ (equivalent @ X3 @ X1) @ (equivalent @ X2 @ X1)) @ 
% 11.41/2.24               X0)))),
% 11.41/2.24      inference('s_sup-', [status(thm)], [zip_derived_cl23, zip_derived_cl0])).
% 11.41/2.24  thf(zip_derived_cl18, plain,
% 11.41/2.24      (![X0 : $i, X1 : $i, X2 : $i]:
% 11.41/2.24         ( (is_a_theorem @ 
% 11.41/2.24            (equivalent @ (equivalent @ X2 @ X0) @ (equivalent @ X1 @ X0)))
% 11.41/2.24          | ~ (is_a_theorem @ (equivalent @ X2 @ X1)))),
% 11.41/2.24      inference('condensation', [status(thm)], [zip_derived_cl8])).
% 11.41/2.24  thf(zip_derived_cl27, plain,
% 11.41/2.24      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i, X4 : $i]:
% 11.41/2.24         (~ (is_a_theorem @ (equivalent @ (equivalent @ X3 @ X2) @ X0))
% 11.41/2.24          |  (is_a_theorem @ 
% 11.41/2.24              (equivalent @ 
% 11.41/2.24               (equivalent @ 
% 11.41/2.24                (equivalent @ (equivalent @ X3 @ X1) @ (equivalent @ X2 @ X1)) @ 
% 11.41/2.24                X4) @ 
% 11.41/2.24               (equivalent @ X0 @ X4))))),
% 11.41/2.24      inference('s_sup-', [status(thm)], [zip_derived_cl24, zip_derived_cl18])).
% 11.41/2.24  thf(zip_derived_cl24, plain,
% 11.41/2.24      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i]:
% 11.41/2.24         (~ (is_a_theorem @ (equivalent @ (equivalent @ X3 @ X2) @ X0))
% 11.41/2.24          |  (is_a_theorem @ 
% 11.41/2.24              (equivalent @ 
% 11.41/2.24               (equivalent @ (equivalent @ X3 @ X1) @ (equivalent @ X2 @ X1)) @ 
% 11.41/2.24               X0)))),
% 11.41/2.24      inference('s_sup-', [status(thm)], [zip_derived_cl23, zip_derived_cl0])).
% 11.41/2.24  thf(zip_derived_cl0, plain,
% 11.41/2.24      (![X0 : $i, X1 : $i]:
% 11.41/2.24         (~ (is_a_theorem @ (equivalent @ X0 @ X1))
% 11.41/2.24          | ~ (is_a_theorem @ X0)
% 11.41/2.24          |  (is_a_theorem @ X1))),
% 11.41/2.24      inference('cnf', [status(esa)], [condensed_detachment])).
% 11.41/2.24  thf(zip_derived_cl26, plain,
% 11.41/2.24      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i]:
% 11.41/2.24         (~ (is_a_theorem @ (equivalent @ (equivalent @ X3 @ X2) @ X0))
% 11.41/2.24          | ~ (is_a_theorem @ 
% 11.41/2.24               (equivalent @ (equivalent @ X3 @ X1) @ (equivalent @ X2 @ X1)))
% 11.41/2.24          |  (is_a_theorem @ X0))),
% 11.41/2.24      inference('s_sup-', [status(thm)], [zip_derived_cl24, zip_derived_cl0])).
% 11.41/2.24  thf(zip_derived_cl74, plain,
% 11.41/2.24      (![X0 : $i, X1 : $i]:
% 11.41/2.24         ( (is_a_theorem @ (equivalent @ X0 @ X0))
% 11.41/2.24          | ~ (is_a_theorem @ 
% 11.41/2.24               (equivalent @ (equivalent @ X1 @ X0) @ (equivalent @ X0 @ X0))))),
% 11.41/2.24      inference('eq_fact', [status(thm)], [zip_derived_cl26])).
% 11.41/2.24  thf(zip_derived_cl18, plain,
% 11.41/2.24      (![X0 : $i, X1 : $i, X2 : $i]:
% 11.41/2.24         ( (is_a_theorem @ 
% 11.41/2.24            (equivalent @ (equivalent @ X2 @ X0) @ (equivalent @ X1 @ X0)))
% 11.41/2.24          | ~ (is_a_theorem @ (equivalent @ X2 @ X1)))),
% 11.41/2.24      inference('condensation', [status(thm)], [zip_derived_cl8])).
% 11.41/2.24  thf(zip_derived_cl89, plain,
% 11.41/2.24      (![X0 : $i, X1 : $i]:
% 11.41/2.24         ( (is_a_theorem @ (equivalent @ X0 @ X0))
% 11.41/2.24          | ~ (is_a_theorem @ (equivalent @ X1 @ X0)))),
% 11.41/2.24      inference('s_sup+', [status(thm)], [zip_derived_cl74, zip_derived_cl18])).
% 11.41/2.24  thf(zip_derived_cl195, plain,
% 11.41/2.24      (![X0 : $i, X1 : $i, X3 : $i, X4 : $i]:
% 11.41/2.24         (~ (is_a_theorem @ (equivalent @ (equivalent @ X4 @ X3) @ X1))
% 11.41/2.24          |  (is_a_theorem @ 
% 11.41/2.24              (equivalent @ (equivalent @ X1 @ X0) @ (equivalent @ X1 @ X0))))),
% 11.41/2.24      inference('s_sup-', [status(thm)], [zip_derived_cl27, zip_derived_cl89])).
% 11.41/2.24  thf(zip_derived_cl26, plain,
% 11.41/2.24      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i]:
% 11.41/2.24         (~ (is_a_theorem @ (equivalent @ (equivalent @ X3 @ X2) @ X0))
% 11.41/2.24          | ~ (is_a_theorem @ 
% 11.41/2.24               (equivalent @ (equivalent @ X3 @ X1) @ (equivalent @ X2 @ X1)))
% 11.41/2.24          |  (is_a_theorem @ X0))),
% 11.41/2.24      inference('s_sup-', [status(thm)], [zip_derived_cl24, zip_derived_cl0])).
% 11.41/2.24  thf(zip_derived_cl305, plain,
% 11.41/2.24      (![X1 : $i, X2 : $i, X3 : $i, X4 : $i]:
% 11.41/2.24         (~ (is_a_theorem @ (equivalent @ (equivalent @ X3 @ X2) @ X1))
% 11.41/2.24          | ~ (is_a_theorem @ (equivalent @ (equivalent @ X1 @ X1) @ X4))
% 11.41/2.24          |  (is_a_theorem @ X4))),
% 11.41/2.24      inference('s_sup-', [status(thm)], [zip_derived_cl195, zip_derived_cl26])).
% 11.41/2.24  thf(zip_derived_cl410, plain,
% 11.41/2.24      (![X0 : $i]:
% 11.41/2.24         ( (is_a_theorem @ X0)
% 11.41/2.24          | ~ (is_a_theorem @ (equivalent @ (equivalent @ X0 @ X0) @ X0)))),
% 11.41/2.24      inference('eq_fact', [status(thm)], [zip_derived_cl305])).
% 11.41/2.24  thf(zip_derived_cl24, plain,
% 11.41/2.24      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i]:
% 11.41/2.24         (~ (is_a_theorem @ (equivalent @ (equivalent @ X3 @ X2) @ X0))
% 11.41/2.24          |  (is_a_theorem @ 
% 11.41/2.24              (equivalent @ 
% 11.41/2.24               (equivalent @ (equivalent @ X3 @ X1) @ (equivalent @ X2 @ X1)) @ 
% 11.41/2.24               X0)))),
% 11.41/2.24      inference('s_sup-', [status(thm)], [zip_derived_cl23, zip_derived_cl0])).
% 11.41/2.24  thf(zip_derived_cl415, plain,
% 11.41/2.24      (![X0 : $i, X1 : $i]:
% 11.41/2.24         ( (is_a_theorem @ (equivalent @ X1 @ X0))
% 11.41/2.24          | ~ (is_a_theorem @ 
% 11.41/2.24               (equivalent @ (equivalent @ X1 @ X1) @ (equivalent @ X1 @ X0))))),
% 11.41/2.24      inference('s_sup+', [status(thm)], [zip_derived_cl410, zip_derived_cl24])).
% 11.41/2.24  thf(zip_derived_cl89, plain,
% 11.41/2.24      (![X0 : $i, X1 : $i]:
% 11.41/2.24         ( (is_a_theorem @ (equivalent @ X0 @ X0))
% 11.41/2.24          | ~ (is_a_theorem @ (equivalent @ X1 @ X0)))),
% 11.41/2.24      inference('s_sup+', [status(thm)], [zip_derived_cl74, zip_derived_cl18])).
% 11.41/2.24  thf(zip_derived_cl422, plain,
% 11.41/2.24      (![X0 : $i, X1 : $i]:
% 11.41/2.24         ( (is_a_theorem @ (equivalent @ X0 @ X0))
% 11.41/2.24          | ~ (is_a_theorem @ (equivalent @ X1 @ (equivalent @ X0 @ X0))))),
% 11.41/2.24      inference('s_sup+', [status(thm)], [zip_derived_cl415, zip_derived_cl89])).
% 11.41/2.24  thf(zip_derived_cl10, plain,
% 11.41/2.24      (![X4 : $i, X5 : $i, X6 : $i]:
% 11.41/2.24          (is_a_theorem @ 
% 11.41/2.24           (equivalent @ (equivalent @ X6 @ X5) @ 
% 11.41/2.24            (equivalent @ (equivalent @ X6 @ X4) @ (equivalent @ X5 @ X4))))),
% 11.41/2.24      inference('s_sup+', [status(thm)], [zip_derived_cl6, zip_derived_cl1])).
% 11.41/2.24  thf(zip_derived_cl443, plain,
% 11.41/2.24      (![X0 : $i, X1 : $i]:
% 11.41/2.24          (is_a_theorem @ 
% 11.41/2.24           (equivalent @ (equivalent @ X1 @ X0) @ (equivalent @ X1 @ X0)))),
% 11.41/2.24      inference('s_sup+', [status(thm)], [zip_derived_cl422, zip_derived_cl10])).
% 11.41/2.24  thf(zip_derived_cl422, plain,
% 11.41/2.24      (![X0 : $i, X1 : $i]:
% 11.41/2.24         ( (is_a_theorem @ (equivalent @ X0 @ X0))
% 11.41/2.24          | ~ (is_a_theorem @ (equivalent @ X1 @ (equivalent @ X0 @ X0))))),
% 11.41/2.24      inference('s_sup+', [status(thm)], [zip_derived_cl415, zip_derived_cl89])).
% 11.41/2.24  thf(zip_derived_cl486, plain,
% 11.41/2.24      (![X0 : $i]:  (is_a_theorem @ (equivalent @ X0 @ X0))),
% 11.41/2.24      inference('s_sup-', [status(thm)], [zip_derived_cl443, zip_derived_cl422])).
% 11.41/2.24  thf(zip_derived_cl26, plain,
% 11.41/2.24      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i]:
% 11.41/2.24         (~ (is_a_theorem @ (equivalent @ (equivalent @ X3 @ X2) @ X0))
% 11.41/2.24          | ~ (is_a_theorem @ 
% 11.41/2.24               (equivalent @ (equivalent @ X3 @ X1) @ (equivalent @ X2 @ X1)))
% 11.41/2.24          |  (is_a_theorem @ X0))),
% 11.41/2.24      inference('s_sup-', [status(thm)], [zip_derived_cl24, zip_derived_cl0])).
% 11.41/2.24  thf(zip_derived_cl527, plain,
% 11.41/2.24      (![X1 : $i, X2 : $i]:
% 11.41/2.24         (~ (is_a_theorem @ (equivalent @ (equivalent @ X1 @ X1) @ X2))
% 11.41/2.24          |  (is_a_theorem @ X2))),
% 11.41/2.24      inference('s_sup-', [status(thm)], [zip_derived_cl486, zip_derived_cl26])).
% 11.41/2.24  thf(zip_derived_cl23, plain,
% 11.41/2.24      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i]:
% 11.41/2.24          (is_a_theorem @ 
% 11.41/2.24           (equivalent @ (equivalent @ (equivalent @ X2 @ X1) @ X3) @ 
% 11.41/2.24            (equivalent @ 
% 11.41/2.24             (equivalent @ (equivalent @ X2 @ X0) @ (equivalent @ X1 @ X0)) @ 
% 11.41/2.24             X3)))),
% 11.41/2.24      inference('s_sup-', [status(thm)], [zip_derived_cl10, zip_derived_cl18])).
% 11.41/2.24  thf(zip_derived_cl561, plain,
% 11.41/2.24      (![X0 : $i, X1 : $i, X2 : $i]:
% 11.41/2.24          (is_a_theorem @ 
% 11.41/2.24           (equivalent @ 
% 11.41/2.24            (equivalent @ (equivalent @ X1 @ X2) @ (equivalent @ X0 @ X2)) @ 
% 11.41/2.24            (equivalent @ X1 @ X0)))),
% 11.41/2.24      inference('s_sup+', [status(thm)], [zip_derived_cl527, zip_derived_cl23])).
% 11.41/2.24  thf(zip_derived_cl24, plain,
% 11.41/2.24      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i]:
% 11.41/2.24         (~ (is_a_theorem @ (equivalent @ (equivalent @ X3 @ X2) @ X0))
% 11.41/2.24          |  (is_a_theorem @ 
% 11.41/2.24              (equivalent @ 
% 11.41/2.24               (equivalent @ (equivalent @ X3 @ X1) @ (equivalent @ X2 @ X1)) @ 
% 11.41/2.24               X0)))),
% 11.41/2.24      inference('s_sup-', [status(thm)], [zip_derived_cl23, zip_derived_cl0])).
% 11.41/2.24  thf(zip_derived_cl10, plain,
% 11.41/2.24      (![X4 : $i, X5 : $i, X6 : $i]:
% 11.41/2.24          (is_a_theorem @ 
% 11.41/2.24           (equivalent @ (equivalent @ X6 @ X5) @ 
% 11.41/2.24            (equivalent @ (equivalent @ X6 @ X4) @ (equivalent @ X5 @ X4))))),
% 11.41/2.24      inference('s_sup+', [status(thm)], [zip_derived_cl6, zip_derived_cl1])).
% 11.41/2.24  thf(zip_derived_cl10, plain,
% 11.41/2.24      (![X4 : $i, X5 : $i, X6 : $i]:
% 11.41/2.24          (is_a_theorem @ 
% 11.41/2.24           (equivalent @ (equivalent @ X6 @ X5) @ 
% 11.41/2.24            (equivalent @ (equivalent @ X6 @ X4) @ (equivalent @ X5 @ X4))))),
% 11.41/2.24      inference('s_sup+', [status(thm)], [zip_derived_cl6, zip_derived_cl1])).
% 11.41/2.24  thf(zip_derived_cl4, plain,
% 11.41/2.24      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i]:
% 11.41/2.24         (~ (is_a_theorem @ X3)
% 11.41/2.24          |  (is_a_theorem @ 
% 11.41/2.24              (equivalent @ X3 @ 
% 11.41/2.24               (equivalent @ (equivalent @ X2 @ X1) @ 
% 11.41/2.24                (equivalent @ (equivalent @ X2 @ X0) @ (equivalent @ X1 @ X0))))))),
% 11.41/2.24      inference('s_sup-', [status(thm)], [zip_derived_cl1, zip_derived_cl0])).
% 11.41/2.24  thf(zip_derived_cl24, plain,
% 11.41/2.24      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i]:
% 11.41/2.24         (~ (is_a_theorem @ (equivalent @ (equivalent @ X3 @ X2) @ X0))
% 11.41/2.24          |  (is_a_theorem @ 
% 11.41/2.24              (equivalent @ 
% 11.41/2.24               (equivalent @ (equivalent @ X3 @ X1) @ (equivalent @ X2 @ X1)) @ 
% 11.41/2.24               X0)))),
% 11.41/2.24      inference('s_sup-', [status(thm)], [zip_derived_cl23, zip_derived_cl0])).
% 11.41/2.24  thf(prove_lg_1, conjecture,
% 11.41/2.24    (is_a_theorem @
% 11.41/2.24     ( equivalent @
% 11.41/2.24       a @ 
% 11.41/2.24       ( equivalent @
% 11.41/2.24         a @ ( equivalent @ ( equivalent @ b @ ( equivalent @ c @ c ) ) @ b ) ) ))).
% 11.41/2.24  thf(zf_stmt_0, negated_conjecture,
% 11.41/2.24    (~( is_a_theorem @
% 11.41/2.24        ( equivalent @
% 11.41/2.24          a @ 
% 11.41/2.24          ( equivalent @
% 11.41/2.24            a @ 
% 11.41/2.24            ( equivalent @ ( equivalent @ b @ ( equivalent @ c @ c ) ) @ b ) ) ) )),
% 11.41/2.24    inference('cnf.neg', [status(esa)], [prove_lg_1])).
% 11.41/2.24  thf(zip_derived_cl2, plain,
% 11.41/2.24      (~ (is_a_theorem @ 
% 11.41/2.24          (equivalent @ a @ 
% 11.41/2.24           (equivalent @ a @ 
% 11.41/2.24            (equivalent @ (equivalent @ b @ (equivalent @ c @ c)) @ b))))),
% 11.41/2.24      inference('cnf', [status(esa)], [zf_stmt_0])).
% 11.41/2.24  thf(zip_derived_cl0, plain,
% 11.41/2.24      (![X0 : $i, X1 : $i]:
% 11.41/2.24         (~ (is_a_theorem @ (equivalent @ X0 @ X1))
% 11.41/2.24          | ~ (is_a_theorem @ X0)
% 11.41/2.24          |  (is_a_theorem @ X1))),
% 11.41/2.24      inference('cnf', [status(esa)], [condensed_detachment])).
% 11.41/2.24  thf(zip_derived_cl3, plain,
% 11.41/2.24      (![X0 : $i]:
% 11.41/2.24         (~ (is_a_theorem @ 
% 11.41/2.24             (equivalent @ X0 @ 
% 11.41/2.24              (equivalent @ a @ 
% 11.41/2.24               (equivalent @ a @ 
% 11.41/2.24                (equivalent @ (equivalent @ b @ (equivalent @ c @ c)) @ b)))))
% 11.41/2.24          | ~ (is_a_theorem @ X0))),
% 11.41/2.24      inference('s_sup+', [status(thm)], [zip_derived_cl2, zip_derived_cl0])).
% 11.41/2.24  thf(zip_derived_cl28, plain,
% 11.41/2.24      (![X0 : $i, X1 : $i, X2 : $i]:
% 11.41/2.24         (~ (is_a_theorem @ 
% 11.41/2.24             (equivalent @ (equivalent @ X2 @ X1) @ 
% 11.41/2.24              (equivalent @ a @ 
% 11.41/2.24               (equivalent @ a @ 
% 11.41/2.24                (equivalent @ (equivalent @ b @ (equivalent @ c @ c)) @ b)))))
% 11.41/2.24          | ~ (is_a_theorem @ 
% 11.41/2.24               (equivalent @ (equivalent @ X2 @ X0) @ (equivalent @ X1 @ X0))))),
% 11.41/2.24      inference('s_sup-', [status(thm)], [zip_derived_cl24, zip_derived_cl3])).
% 11.41/2.24  thf(zip_derived_cl0, plain,
% 11.41/2.24      (![X0 : $i, X1 : $i]:
% 11.41/2.24         (~ (is_a_theorem @ (equivalent @ X0 @ X1))
% 11.41/2.24          | ~ (is_a_theorem @ X0)
% 11.41/2.24          |  (is_a_theorem @ X1))),
% 11.41/2.24      inference('cnf', [status(esa)], [condensed_detachment])).
% 11.41/2.24  thf(zip_derived_cl29, plain,
% 11.41/2.24      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i]:
% 11.41/2.24         (~ (is_a_theorem @ 
% 11.41/2.24             (equivalent @ (equivalent @ X1 @ X2) @ (equivalent @ X0 @ X2)))
% 11.41/2.24          | ~ (is_a_theorem @ 
% 11.41/2.24               (equivalent @ X3 @ 
% 11.41/2.24                (equivalent @ (equivalent @ X1 @ X0) @ 
% 11.41/2.24                 (equivalent @ a @ 
% 11.41/2.24                  (equivalent @ a @ 
% 11.41/2.24                   (equivalent @ (equivalent @ b @ (equivalent @ c @ c)) @ b))))))
% 11.41/2.24          | ~ (is_a_theorem @ X3))),
% 11.41/2.24      inference('s_sup+', [status(thm)], [zip_derived_cl28, zip_derived_cl0])).
% 11.41/2.24  thf(zip_derived_cl77, plain,
% 11.41/2.24      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i, X4 : $i]:
% 11.41/2.24         (~ (is_a_theorem @ 
% 11.41/2.24             (equivalent @ X3 @ 
% 11.41/2.24              (equivalent @ (equivalent @ X2 @ X0) @ (equivalent @ X1 @ X0))))
% 11.41/2.24          | ~ (is_a_theorem @ 
% 11.41/2.24               (equivalent @ X4 @ 
% 11.41/2.24                (equivalent @ (equivalent @ X3 @ (equivalent @ X2 @ X1)) @ 
% 11.41/2.24                 (equivalent @ a @ 
% 11.41/2.24                  (equivalent @ a @ 
% 11.41/2.24                   (equivalent @ (equivalent @ b @ (equivalent @ c @ c)) @ b))))))
% 11.41/2.24          | ~ (is_a_theorem @ X4))),
% 11.41/2.24      inference('s_sup-', [status(thm)], [zip_derived_cl4, zip_derived_cl29])).
% 11.41/2.24  thf(zip_derived_cl116, plain,
% 11.41/2.24      (![X1 : $i, X2 : $i, X3 : $i]:
% 11.41/2.24         (~ (is_a_theorem @ 
% 11.41/2.24             (equivalent @ X3 @ 
% 11.41/2.24              (equivalent @ 
% 11.41/2.24               (equivalent @ (equivalent @ X2 @ X1) @ (equivalent @ X2 @ X1)) @ 
% 11.41/2.24               (equivalent @ a @ 
% 11.41/2.24                (equivalent @ a @ 
% 11.41/2.24                 (equivalent @ (equivalent @ b @ (equivalent @ c @ c)) @ b))))))
% 11.41/2.24          | ~ (is_a_theorem @ X3))),
% 11.41/2.24      inference('s_sup-', [status(thm)], [zip_derived_cl10, zip_derived_cl77])).
% 11.41/2.24  thf(zip_derived_cl121, plain,
% 11.41/2.24      (~ (is_a_theorem @ 
% 11.41/2.24          (equivalent @ 
% 11.41/2.24           (equivalent @ a @ 
% 11.41/2.24            (equivalent @ (equivalent @ b @ (equivalent @ c @ c)) @ b)) @ 
% 11.41/2.24           a))),
% 11.41/2.24      inference('s_sup-', [status(thm)], [zip_derived_cl10, zip_derived_cl116])).
% 11.41/2.24  thf(zip_derived_cl26, plain,
% 11.41/2.24      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i]:
% 11.41/2.24         (~ (is_a_theorem @ (equivalent @ (equivalent @ X3 @ X2) @ X0))
% 11.41/2.24          | ~ (is_a_theorem @ 
% 11.41/2.24               (equivalent @ (equivalent @ X3 @ X1) @ (equivalent @ X2 @ X1)))
% 11.41/2.24          |  (is_a_theorem @ X0))),
% 11.41/2.24      inference('s_sup-', [status(thm)], [zip_derived_cl24, zip_derived_cl0])).
% 11.41/2.24  thf(zip_derived_cl18, plain,
% 11.41/2.24      (![X0 : $i, X1 : $i, X2 : $i]:
% 11.41/2.24         ( (is_a_theorem @ 
% 11.41/2.24            (equivalent @ (equivalent @ X2 @ X0) @ (equivalent @ X1 @ X0)))
% 11.41/2.24          | ~ (is_a_theorem @ (equivalent @ X2 @ X1)))),
% 11.41/2.24      inference('condensation', [status(thm)], [zip_derived_cl8])).
% 11.41/2.24  thf(zip_derived_cl53, plain,
% 11.41/2.24      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i]:
% 11.41/2.24         ( (is_a_theorem @ (equivalent @ X1 @ X0))
% 11.41/2.24          | ~ (is_a_theorem @ 
% 11.41/2.24               (equivalent @ (equivalent @ X2 @ X3) @ (equivalent @ X0 @ X3)))
% 11.41/2.24          | ~ (is_a_theorem @ (equivalent @ X2 @ X1)))),
% 11.41/2.24      inference('s_sup+', [status(thm)], [zip_derived_cl26, zip_derived_cl18])).
% 11.41/2.24  thf(zip_derived_cl147, plain,
% 11.41/2.24      (![X0 : $i, X1 : $i]:
% 11.41/2.24         (~ (is_a_theorem @ 
% 11.41/2.24             (equivalent @ (equivalent @ X1 @ X0) @ (equivalent @ a @ X0)))
% 11.41/2.24          | ~ (is_a_theorem @ 
% 11.41/2.24               (equivalent @ X1 @ 
% 11.41/2.24                (equivalent @ a @ 
% 11.41/2.24                 (equivalent @ (equivalent @ b @ (equivalent @ c @ c)) @ b)))))),
% 11.41/2.24      inference('s_sup+', [status(thm)], [zip_derived_cl121, zip_derived_cl53])).
% 11.41/2.24  thf(zip_derived_cl18, plain,
% 11.41/2.24      (![X0 : $i, X1 : $i, X2 : $i]:
% 11.41/2.24         ( (is_a_theorem @ 
% 11.41/2.24            (equivalent @ (equivalent @ X2 @ X0) @ (equivalent @ X1 @ X0)))
% 11.41/2.24          | ~ (is_a_theorem @ (equivalent @ X2 @ X1)))),
% 11.41/2.24      inference('condensation', [status(thm)], [zip_derived_cl8])).
% 11.41/2.24  thf(zip_derived_cl165, plain,
% 11.41/2.24      (![X1 : $i]:
% 11.41/2.24         (~ (is_a_theorem @ 
% 11.41/2.24             (equivalent @ X1 @ 
% 11.41/2.24              (equivalent @ a @ 
% 11.41/2.24               (equivalent @ (equivalent @ b @ (equivalent @ c @ c)) @ b))))
% 11.41/2.24          | ~ (is_a_theorem @ (equivalent @ X1 @ a)))),
% 11.41/2.24      inference('s_sup+', [status(thm)], [zip_derived_cl147, zip_derived_cl18])).
% 11.41/2.24  thf(zip_derived_cl173, plain,
% 11.41/2.24      (![X0 : $i, X1 : $i, X2 : $i]:
% 11.41/2.24         (~ (is_a_theorem @ (equivalent @ (equivalent @ X2 @ X1) @ a))
% 11.41/2.24          | ~ (is_a_theorem @ 
% 11.41/2.24               (equivalent @ 
% 11.41/2.24                (equivalent @ (equivalent @ X2 @ X0) @ (equivalent @ X1 @ X0)) @ 
% 11.41/2.24                (equivalent @ a @ 
% 11.41/2.24                 (equivalent @ (equivalent @ b @ (equivalent @ c @ c)) @ b)))))),
% 11.41/2.24      inference('s_sup-', [status(thm)], [zip_derived_cl24, zip_derived_cl165])).
% 11.41/2.24  thf(zip_derived_cl18, plain,
% 11.41/2.24      (![X0 : $i, X1 : $i, X2 : $i]:
% 11.41/2.24         ( (is_a_theorem @ 
% 11.41/2.24            (equivalent @ (equivalent @ X2 @ X0) @ (equivalent @ X1 @ X0)))
% 11.41/2.24          | ~ (is_a_theorem @ (equivalent @ X2 @ X1)))),
% 11.41/2.24      inference('condensation', [status(thm)], [zip_derived_cl8])).
% 11.41/2.24  thf(zip_derived_cl352, plain,
% 11.41/2.24      (![X0 : $i]:
% 11.41/2.24         (~ (is_a_theorem @ 
% 11.41/2.24             (equivalent @ 
% 11.41/2.24              (equivalent @ X0 @ (equivalent @ b @ (equivalent @ c @ c))) @ a))
% 11.41/2.24          | ~ (is_a_theorem @ (equivalent @ (equivalent @ X0 @ b) @ a)))),
% 11.41/2.24      inference('s_sup+', [status(thm)], [zip_derived_cl173, zip_derived_cl18])).
% 11.41/2.24  thf(zip_derived_cl24, plain,
% 11.41/2.24      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i]:
% 11.41/2.24         (~ (is_a_theorem @ (equivalent @ (equivalent @ X3 @ X2) @ X0))
% 11.41/2.24          |  (is_a_theorem @ 
% 11.41/2.24              (equivalent @ 
% 11.41/2.24               (equivalent @ (equivalent @ X3 @ X1) @ (equivalent @ X2 @ X1)) @ 
% 11.41/2.24               X0)))),
% 11.41/2.24      inference('s_sup-', [status(thm)], [zip_derived_cl23, zip_derived_cl0])).
% 11.41/2.24  thf(zip_derived_cl356, plain,
% 11.41/2.24      (![X0 : $i]:
% 11.41/2.24         (~ (is_a_theorem @ 
% 11.41/2.24             (equivalent @ 
% 11.41/2.24              (equivalent @ (equivalent @ X0 @ (equivalent @ c @ c)) @ b) @ a))
% 11.41/2.24          | ~ (is_a_theorem @ (equivalent @ (equivalent @ X0 @ b) @ a)))),
% 11.41/2.24      inference('s_sup+', [status(thm)], [zip_derived_cl352, zip_derived_cl24])).
% 11.41/2.24  thf(zip_derived_cl23, plain,
% 11.41/2.24      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i]:
% 11.41/2.24          (is_a_theorem @ 
% 11.41/2.24           (equivalent @ (equivalent @ (equivalent @ X2 @ X1) @ X3) @ 
% 11.41/2.24            (equivalent @ 
% 11.41/2.24             (equivalent @ (equivalent @ X2 @ X0) @ (equivalent @ X1 @ X0)) @ 
% 11.41/2.24             X3)))),
% 11.41/2.24      inference('s_sup-', [status(thm)], [zip_derived_cl10, zip_derived_cl18])).
% 11.41/2.24  thf(zip_derived_cl18, plain,
% 11.41/2.24      (![X0 : $i, X1 : $i, X2 : $i]:
% 11.41/2.24         ( (is_a_theorem @ 
% 11.41/2.24            (equivalent @ (equivalent @ X2 @ X0) @ (equivalent @ X1 @ X0)))
% 11.41/2.24          | ~ (is_a_theorem @ (equivalent @ X2 @ X1)))),
% 11.41/2.24      inference('condensation', [status(thm)], [zip_derived_cl8])).
% 11.41/2.24  thf(zip_derived_cl25, plain,
% 11.41/2.24      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i, X4 : $i]:
% 11.41/2.24          (is_a_theorem @ 
% 11.41/2.24           (equivalent @ 
% 11.41/2.24            (equivalent @ (equivalent @ (equivalent @ X3 @ X2) @ X0) @ X4) @ 
% 11.41/2.24            (equivalent @ 
% 11.41/2.24             (equivalent @ 
% 11.41/2.24              (equivalent @ (equivalent @ X3 @ X1) @ (equivalent @ X2 @ X1)) @ 
% 11.41/2.24              X0) @ 
% 11.41/2.24             X4)))),
% 11.41/2.24      inference('s_sup-', [status(thm)], [zip_derived_cl23, zip_derived_cl18])).
% 11.41/2.24  thf(zip_derived_cl0, plain,
% 11.41/2.24      (![X0 : $i, X1 : $i]:
% 11.41/2.24         (~ (is_a_theorem @ (equivalent @ X0 @ X1))
% 11.41/2.24          | ~ (is_a_theorem @ X0)
% 11.41/2.24          |  (is_a_theorem @ X1))),
% 11.41/2.24      inference('cnf', [status(esa)], [condensed_detachment])).
% 11.41/2.24  thf(zip_derived_cl130, plain,
% 11.41/2.24      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i, X4 : $i]:
% 11.41/2.24         (~ (is_a_theorem @ 
% 11.41/2.24             (equivalent @ (equivalent @ (equivalent @ X4 @ X3) @ X1) @ X0))
% 11.41/2.24          |  (is_a_theorem @ 
% 11.41/2.24              (equivalent @ 
% 11.41/2.24               (equivalent @ 
% 11.41/2.24                (equivalent @ (equivalent @ X4 @ X2) @ (equivalent @ X3 @ X2)) @ 
% 11.41/2.24                X1) @ 
% 11.41/2.24               X0)))),
% 11.41/2.24      inference('s_sup-', [status(thm)], [zip_derived_cl25, zip_derived_cl0])).
% 11.41/2.24  thf(zip_derived_cl3427, plain,
% 11.41/2.24      (![X0 : $i]:
% 11.41/2.24         (~ (is_a_theorem @ 
% 11.41/2.24             (equivalent @ (equivalent @ (equivalent @ X0 @ c) @ b) @ a))
% 11.41/2.24          | ~ (is_a_theorem @ 
% 11.41/2.24               (equivalent @ (equivalent @ (equivalent @ X0 @ c) @ b) @ a)))),
% 11.41/2.24      inference('s_sup+', [status(thm)], [zip_derived_cl356, zip_derived_cl130])).
% 11.41/2.24  thf(zip_derived_cl3431, plain,
% 11.41/2.24      (![X0 : $i]:
% 11.41/2.24         ~ (is_a_theorem @ 
% 11.41/2.24            (equivalent @ (equivalent @ (equivalent @ X0 @ c) @ b) @ a))),
% 11.41/2.24      inference('simplify', [status(thm)], [zip_derived_cl3427])).
% 11.41/2.24  thf(zip_derived_cl0, plain,
% 11.41/2.24      (![X0 : $i, X1 : $i]:
% 11.41/2.24         (~ (is_a_theorem @ (equivalent @ X0 @ X1))
% 11.41/2.24          | ~ (is_a_theorem @ X0)
% 11.41/2.24          |  (is_a_theorem @ X1))),
% 11.41/2.24      inference('cnf', [status(esa)], [condensed_detachment])).
% 11.41/2.24  thf(zip_derived_cl3434, plain,
% 11.41/2.24      (![X0 : $i, X1 : $i]:
% 11.41/2.24         (~ (is_a_theorem @ 
% 11.41/2.24             (equivalent @ X1 @ 
% 11.41/2.24              (equivalent @ (equivalent @ (equivalent @ X0 @ c) @ b) @ a)))
% 11.41/2.24          | ~ (is_a_theorem @ X1))),
% 11.41/2.24      inference('s_sup+', [status(thm)], [zip_derived_cl3431, zip_derived_cl0])).
% 11.41/2.24  thf(zip_derived_cl3452, plain,
% 11.41/2.24      (![X0 : $i, X1 : $i]:
% 11.41/2.24         ~ (is_a_theorem @ 
% 11.41/2.24            (equivalent @ 
% 11.41/2.24             (equivalent @ (equivalent @ (equivalent @ X0 @ c) @ b) @ X1) @ 
% 11.41/2.24             (equivalent @ a @ X1)))),
% 11.41/2.24      inference('s_sup-', [status(thm)],
% 11.41/2.24                [zip_derived_cl561, zip_derived_cl3434])).
% 11.41/2.24  thf(zip_derived_cl24, plain,
% 11.41/2.24      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i]:
% 11.41/2.24         (~ (is_a_theorem @ (equivalent @ (equivalent @ X3 @ X2) @ X0))
% 11.41/2.24          |  (is_a_theorem @ 
% 11.41/2.24              (equivalent @ 
% 11.41/2.24               (equivalent @ (equivalent @ X3 @ X1) @ (equivalent @ X2 @ X1)) @ 
% 11.41/2.24               X0)))),
% 11.41/2.24      inference('s_sup-', [status(thm)], [zip_derived_cl23, zip_derived_cl0])).
% 11.41/2.24  thf(zip_derived_cl3533, plain,
% 11.41/2.24      (![X0 : $i, X1 : $i]:
% 11.41/2.24         ~ (is_a_theorem @ 
% 11.41/2.24            (equivalent @ (equivalent @ (equivalent @ X1 @ c) @ X0) @ 
% 11.41/2.24             (equivalent @ a @ (equivalent @ X0 @ b))))),
% 11.41/2.24      inference('s_sup+', [status(thm)], [zip_derived_cl3452, zip_derived_cl24])).
% 11.41/2.24  thf(zip_derived_cl24, plain,
% 11.41/2.24      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i]:
% 11.41/2.24         (~ (is_a_theorem @ (equivalent @ (equivalent @ X3 @ X2) @ X0))
% 11.41/2.24          |  (is_a_theorem @ 
% 11.41/2.24              (equivalent @ 
% 11.41/2.24               (equivalent @ (equivalent @ X3 @ X1) @ (equivalent @ X2 @ X1)) @ 
% 11.41/2.24               X0)))),
% 11.41/2.24      inference('s_sup-', [status(thm)], [zip_derived_cl23, zip_derived_cl0])).
% 11.41/2.24  thf(zip_derived_cl3630, plain,
% 11.41/2.24      (![X0 : $i, X1 : $i]:
% 11.41/2.24         ~ (is_a_theorem @ 
% 11.41/2.24            (equivalent @ (equivalent @ X1 @ X0) @ 
% 11.41/2.24             (equivalent @ a @ (equivalent @ (equivalent @ X0 @ c) @ b))))),
% 11.41/2.24      inference('s_sup+', [status(thm)], [zip_derived_cl3533, zip_derived_cl24])).
% 11.41/2.24  thf(zip_derived_cl527, plain,
% 11.41/2.24      (![X1 : $i, X2 : $i]:
% 11.41/2.24         (~ (is_a_theorem @ (equivalent @ (equivalent @ X1 @ X1) @ X2))
% 11.41/2.24          |  (is_a_theorem @ X2))),
% 11.41/2.24      inference('s_sup-', [status(thm)], [zip_derived_cl486, zip_derived_cl26])).
% 11.41/2.24  thf(zip_derived_cl18, plain,
% 11.41/2.24      (![X0 : $i, X1 : $i, X2 : $i]:
% 11.41/2.24         ( (is_a_theorem @ 
% 11.41/2.24            (equivalent @ (equivalent @ X2 @ X0) @ (equivalent @ X1 @ X0)))
% 11.41/2.24          | ~ (is_a_theorem @ (equivalent @ X2 @ X1)))),
% 11.41/2.24      inference('condensation', [status(thm)], [zip_derived_cl8])).
% 11.41/2.24  thf(zip_derived_cl558, plain,
% 11.41/2.24      (![X0 : $i, X1 : $i]:
% 11.41/2.24         ( (is_a_theorem @ (equivalent @ X1 @ X0))
% 11.41/2.24          | ~ (is_a_theorem @ (equivalent @ X0 @ X1)))),
% 11.41/2.24      inference('s_sup+', [status(thm)], [zip_derived_cl527, zip_derived_cl18])).
% 11.41/2.24  thf(zip_derived_cl3895, plain,
% 11.41/2.24      (![X0 : $i, X1 : $i]:
% 11.41/2.24         ~ (is_a_theorem @ 
% 11.41/2.24            (equivalent @ 
% 11.41/2.24             (equivalent @ a @ (equivalent @ (equivalent @ X0 @ c) @ b)) @ 
% 11.41/2.24             (equivalent @ X1 @ X0)))),
% 11.41/2.24      inference('s_sup+', [status(thm)],
% 11.41/2.24                [zip_derived_cl3630, zip_derived_cl558])).
% 11.41/2.24  thf(zip_derived_cl1, plain,
% 11.41/2.24      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i]:
% 11.41/2.24          (is_a_theorem @ 
% 11.41/2.24           (equivalent @ X0 @ 
% 11.41/2.24            (equivalent @ X0 @ 
% 11.41/2.24             (equivalent @ (equivalent @ X1 @ X2) @ 
% 11.41/2.24              (equivalent @ (equivalent @ X1 @ X3) @ (equivalent @ X2 @ X3))))))),
% 11.41/2.24      inference('cnf', [status(esa)], [lg_2])).
% 11.41/2.24  thf(zip_derived_cl3935, plain, ($false),
% 11.41/2.24      inference('s_sup+', [status(thm)], [zip_derived_cl3895, zip_derived_cl1])).
% 11.41/2.24  
% 11.41/2.24  % SZS output end Refutation
% 11.41/2.24  
% 11.41/2.24  
% 11.41/2.24  % Terminating...
% 11.41/2.28  % Runner terminated.
% 11.41/2.29  % Zipperpin 1.5 exiting
%------------------------------------------------------------------------------