TSTP Solution File: LCL128-1 by Zipperpin---2.1.9999

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : Zipperpin---2.1.9999
% Problem  : LCL128-1 : TPTP v8.1.2. Released v1.0.0.
% Transfm  : NO INFORMATION
% Format   : NO INFORMATION
% Command  : python3 /export/starexec/sandbox2/solver/bin/portfolio.lams.parallel.py %s %d /export/starexec/sandbox2/tmp/tmp.YEczbTrqwC true

% Computer : n016.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 08:58:20 EDT 2023

% Result   : Unsatisfiable 20.55s 3.68s
% Output   : Refutation 20.55s
% Verified : 
% SZS Type : -

% Comments : 
%------------------------------------------------------------------------------
%----WARNING: Could not form TPTP format derivation
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.12  % Problem  : LCL128-1 : TPTP v8.1.2. Released v1.0.0.
% 0.00/0.13  % Command  : python3 /export/starexec/sandbox2/solver/bin/portfolio.lams.parallel.py %s %d /export/starexec/sandbox2/tmp/tmp.YEczbTrqwC true
% 0.12/0.33  % Computer : n016.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 : Fri Aug 25 05:14:55 EDT 2023
% 0.12/0.33  % CPUTime  : 
% 0.12/0.33  % Running portfolio for 300 s
% 0.12/0.33  % File         : /export/starexec/sandbox2/benchmark/theBenchmark.p
% 0.12/0.33  % Number of cores: 8
% 0.12/0.33  % Python version: Python 3.6.8
% 0.12/0.33  % Running in FO mode
% 0.18/0.55  % Total configuration time : 435
% 0.18/0.55  % Estimated wc time : 1092
% 0.18/0.55  % Estimated cpu time (7 cpus) : 156.0
% 0.18/0.62  % /export/starexec/sandbox2/solver/bin/fo/fo6_bce.sh running for 75s
% 0.18/0.63  % /export/starexec/sandbox2/solver/bin/fo/fo3_bce.sh running for 75s
% 0.18/0.65  % /export/starexec/sandbox2/solver/bin/fo/fo1_av.sh running for 75s
% 0.18/0.65  % /export/starexec/sandbox2/solver/bin/fo/fo7.sh running for 63s
% 0.18/0.68  % /export/starexec/sandbox2/solver/bin/fo/fo13.sh running for 50s
% 0.18/0.70  % /export/starexec/sandbox2/solver/bin/fo/fo4.sh running for 50s
% 0.18/0.71  % /export/starexec/sandbox2/solver/bin/fo/fo5.sh running for 50s
% 20.55/3.68  % Solved by fo/fo13.sh.
% 20.55/3.68  % done 990 iterations in 2.912s
% 20.55/3.68  % SZS status Theorem for '/export/starexec/sandbox2/benchmark/theBenchmark.p'
% 20.55/3.68  % SZS output start Refutation
% 20.55/3.68  thf(c_type, type, c: $i).
% 20.55/3.68  thf(is_a_theorem_type, type, is_a_theorem: $i > $o).
% 20.55/3.68  thf(equivalent_type, type, equivalent: $i > $i > $i).
% 20.55/3.68  thf(b_type, type, b: $i).
% 20.55/3.68  thf(e_type, type, e: $i).
% 20.55/3.68  thf(a_type, type, a: $i).
% 20.55/3.68  thf(s_3, axiom,
% 20.55/3.68    (is_a_theorem @
% 20.55/3.68     ( equivalent @
% 20.55/3.68       X @ 
% 20.55/3.68       ( equivalent @
% 20.55/3.68         X @ 
% 20.55/3.68         ( equivalent @
% 20.55/3.68           ( equivalent @ ( equivalent @ Y @ Z ) @ ( equivalent @ U @ Z ) ) @ 
% 20.55/3.68           ( equivalent @ Y @ U ) ) ) ))).
% 20.55/3.68  thf(zip_derived_cl1, plain,
% 20.55/3.68      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i]:
% 20.55/3.68          (is_a_theorem @ 
% 20.55/3.68           (equivalent @ X0 @ 
% 20.55/3.68            (equivalent @ X0 @ 
% 20.55/3.68             (equivalent @ 
% 20.55/3.68              (equivalent @ (equivalent @ X1 @ X2) @ (equivalent @ X3 @ X2)) @ 
% 20.55/3.68              (equivalent @ X1 @ X3)))))),
% 20.55/3.68      inference('cnf', [status(esa)], [s_3])).
% 20.55/3.68  thf(condensed_detachment, axiom,
% 20.55/3.68    (( ~( is_a_theorem @ ( equivalent @ X @ Y ) ) ) | 
% 20.55/3.68     ( ~( is_a_theorem @ X ) ) | ( is_a_theorem @ Y ))).
% 20.55/3.68  thf(zip_derived_cl0, plain,
% 20.55/3.68      (![X0 : $i, X1 : $i]:
% 20.55/3.68         (~ (is_a_theorem @ (equivalent @ X0 @ X1))
% 20.55/3.68          | ~ (is_a_theorem @ X0)
% 20.55/3.68          |  (is_a_theorem @ X1))),
% 20.55/3.68      inference('cnf', [status(esa)], [condensed_detachment])).
% 20.55/3.68  thf(zip_derived_cl4, plain,
% 20.55/3.68      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i]:
% 20.55/3.68         (~ (is_a_theorem @ X3)
% 20.55/3.68          |  (is_a_theorem @ 
% 20.55/3.68              (equivalent @ X3 @ 
% 20.55/3.68               (equivalent @ 
% 20.55/3.68                (equivalent @ (equivalent @ X1 @ X2) @ (equivalent @ X0 @ X2)) @ 
% 20.55/3.68                (equivalent @ X1 @ X0)))))),
% 20.55/3.68      inference('s_sup-', [status(thm)], [zip_derived_cl1, zip_derived_cl0])).
% 20.55/3.68  thf(zip_derived_cl0, plain,
% 20.55/3.68      (![X0 : $i, X1 : $i]:
% 20.55/3.68         (~ (is_a_theorem @ (equivalent @ X0 @ X1))
% 20.55/3.68          | ~ (is_a_theorem @ X0)
% 20.55/3.68          |  (is_a_theorem @ X1))),
% 20.55/3.68      inference('cnf', [status(esa)], [condensed_detachment])).
% 20.55/3.68  thf(zip_derived_cl5, plain,
% 20.55/3.68      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i]:
% 20.55/3.68         (~ (is_a_theorem @ X3)
% 20.55/3.68          | ~ (is_a_theorem @ X3)
% 20.55/3.68          |  (is_a_theorem @ 
% 20.55/3.68              (equivalent @ 
% 20.55/3.68               (equivalent @ (equivalent @ X1 @ X2) @ (equivalent @ X0 @ X2)) @ 
% 20.55/3.68               (equivalent @ X1 @ X0))))),
% 20.55/3.68      inference('s_sup-', [status(thm)], [zip_derived_cl4, zip_derived_cl0])).
% 20.55/3.68  thf(zip_derived_cl6, plain,
% 20.55/3.68      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i]:
% 20.55/3.68         ( (is_a_theorem @ 
% 20.55/3.68            (equivalent @ 
% 20.55/3.68             (equivalent @ (equivalent @ X1 @ X2) @ (equivalent @ X0 @ X2)) @ 
% 20.55/3.68             (equivalent @ X1 @ X0)))
% 20.55/3.68          | ~ (is_a_theorem @ X3))),
% 20.55/3.68      inference('simplify', [status(thm)], [zip_derived_cl5])).
% 20.55/3.68  thf(zip_derived_cl1, plain,
% 20.55/3.68      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i]:
% 20.55/3.68          (is_a_theorem @ 
% 20.55/3.68           (equivalent @ X0 @ 
% 20.55/3.68            (equivalent @ X0 @ 
% 20.55/3.68             (equivalent @ 
% 20.55/3.68              (equivalent @ (equivalent @ X1 @ X2) @ (equivalent @ X3 @ X2)) @ 
% 20.55/3.68              (equivalent @ X1 @ X3)))))),
% 20.55/3.68      inference('cnf', [status(esa)], [s_3])).
% 20.55/3.68  thf(zip_derived_cl11, plain,
% 20.55/3.68      (![X4 : $i, X5 : $i, X6 : $i]:
% 20.55/3.68          (is_a_theorem @ 
% 20.55/3.68           (equivalent @ 
% 20.55/3.68            (equivalent @ (equivalent @ X5 @ X6) @ (equivalent @ X4 @ X6)) @ 
% 20.55/3.68            (equivalent @ X5 @ X4)))),
% 20.55/3.68      inference('s_sup+', [status(thm)], [zip_derived_cl6, zip_derived_cl1])).
% 20.55/3.68  thf(zip_derived_cl11, plain,
% 20.55/3.68      (![X4 : $i, X5 : $i, X6 : $i]:
% 20.55/3.68          (is_a_theorem @ 
% 20.55/3.68           (equivalent @ 
% 20.55/3.68            (equivalent @ (equivalent @ X5 @ X6) @ (equivalent @ X4 @ X6)) @ 
% 20.55/3.68            (equivalent @ X5 @ X4)))),
% 20.55/3.68      inference('s_sup+', [status(thm)], [zip_derived_cl6, zip_derived_cl1])).
% 20.55/3.68  thf(zip_derived_cl0, plain,
% 20.55/3.68      (![X0 : $i, X1 : $i]:
% 20.55/3.68         (~ (is_a_theorem @ (equivalent @ X0 @ X1))
% 20.55/3.68          | ~ (is_a_theorem @ X0)
% 20.55/3.68          |  (is_a_theorem @ X1))),
% 20.55/3.68      inference('cnf', [status(esa)], [condensed_detachment])).
% 20.55/3.68  thf(zip_derived_cl30, plain,
% 20.55/3.68      (![X0 : $i, X1 : $i, X2 : $i]:
% 20.55/3.68         (~ (is_a_theorem @ 
% 20.55/3.68             (equivalent @ (equivalent @ X1 @ X2) @ (equivalent @ X0 @ X2)))
% 20.55/3.68          |  (is_a_theorem @ (equivalent @ X1 @ X0)))),
% 20.55/3.68      inference('s_sup-', [status(thm)], [zip_derived_cl11, zip_derived_cl0])).
% 20.55/3.68  thf(zip_derived_cl4, plain,
% 20.55/3.68      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i]:
% 20.55/3.68         (~ (is_a_theorem @ X3)
% 20.55/3.68          |  (is_a_theorem @ 
% 20.55/3.68              (equivalent @ X3 @ 
% 20.55/3.68               (equivalent @ 
% 20.55/3.68                (equivalent @ (equivalent @ X1 @ X2) @ (equivalent @ X0 @ X2)) @ 
% 20.55/3.68                (equivalent @ X1 @ X0)))))),
% 20.55/3.68      inference('s_sup-', [status(thm)], [zip_derived_cl1, zip_derived_cl0])).
% 20.55/3.68  thf(zip_derived_cl38, plain,
% 20.55/3.68      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i]:
% 20.55/3.68         ( (is_a_theorem @ 
% 20.55/3.68            (equivalent @ X3 @ 
% 20.55/3.68             (equivalent @ (equivalent @ X1 @ X2) @ (equivalent @ X0 @ X2))))
% 20.55/3.68          | ~ (is_a_theorem @ (equivalent @ X3 @ (equivalent @ X1 @ X0))))),
% 20.55/3.68      inference('s_sup+', [status(thm)], [zip_derived_cl30, zip_derived_cl4])).
% 20.55/3.68  thf(zip_derived_cl30, plain,
% 20.55/3.68      (![X0 : $i, X1 : $i, X2 : $i]:
% 20.55/3.68         (~ (is_a_theorem @ 
% 20.55/3.68             (equivalent @ (equivalent @ X1 @ X2) @ (equivalent @ X0 @ X2)))
% 20.55/3.68          |  (is_a_theorem @ (equivalent @ X1 @ X0)))),
% 20.55/3.68      inference('s_sup-', [status(thm)], [zip_derived_cl11, zip_derived_cl0])).
% 20.55/3.68  thf(zip_derived_cl50, plain,
% 20.55/3.68      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i]:
% 20.55/3.68         (~ (is_a_theorem @ 
% 20.55/3.68             (equivalent @ (equivalent @ X3 @ (equivalent @ X1 @ X0)) @ 
% 20.55/3.68              (equivalent @ X2 @ X1)))
% 20.55/3.68          |  (is_a_theorem @ (equivalent @ X3 @ (equivalent @ X2 @ X0))))),
% 20.55/3.68      inference('s_sup-', [status(thm)], [zip_derived_cl38, zip_derived_cl30])).
% 20.55/3.68  thf(zip_derived_cl11, plain,
% 20.55/3.68      (![X4 : $i, X5 : $i, X6 : $i]:
% 20.55/3.68          (is_a_theorem @ 
% 20.55/3.68           (equivalent @ 
% 20.55/3.68            (equivalent @ (equivalent @ X5 @ X6) @ (equivalent @ X4 @ X6)) @ 
% 20.55/3.68            (equivalent @ X5 @ X4)))),
% 20.55/3.68      inference('s_sup+', [status(thm)], [zip_derived_cl6, zip_derived_cl1])).
% 20.55/3.68  thf(zip_derived_cl109, plain,
% 20.55/3.68      (![X1 : $i, X2 : $i]:
% 20.55/3.68          (is_a_theorem @ 
% 20.55/3.68           (equivalent @ (equivalent @ X1 @ X2) @ (equivalent @ X1 @ X2)))),
% 20.55/3.68      inference('s_sup+', [status(thm)], [zip_derived_cl50, zip_derived_cl11])).
% 20.55/3.68  thf(zip_derived_cl30, plain,
% 20.55/3.68      (![X0 : $i, X1 : $i, X2 : $i]:
% 20.55/3.68         (~ (is_a_theorem @ 
% 20.55/3.68             (equivalent @ (equivalent @ X1 @ X2) @ (equivalent @ X0 @ X2)))
% 20.55/3.68          |  (is_a_theorem @ (equivalent @ X1 @ X0)))),
% 20.55/3.68      inference('s_sup-', [status(thm)], [zip_derived_cl11, zip_derived_cl0])).
% 20.55/3.68  thf(zip_derived_cl130, plain,
% 20.55/3.68      (![X1 : $i]:  (is_a_theorem @ (equivalent @ X1 @ X1))),
% 20.55/3.68      inference('s_sup-', [status(thm)], [zip_derived_cl109, zip_derived_cl30])).
% 20.55/3.68  thf(zip_derived_cl38, plain,
% 20.55/3.68      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i]:
% 20.55/3.68         ( (is_a_theorem @ 
% 20.55/3.68            (equivalent @ X3 @ 
% 20.55/3.68             (equivalent @ (equivalent @ X1 @ X2) @ (equivalent @ X0 @ X2))))
% 20.55/3.68          | ~ (is_a_theorem @ (equivalent @ X3 @ (equivalent @ X1 @ X0))))),
% 20.55/3.68      inference('s_sup+', [status(thm)], [zip_derived_cl30, zip_derived_cl4])).
% 20.55/3.68  thf(zip_derived_cl0, plain,
% 20.55/3.68      (![X0 : $i, X1 : $i]:
% 20.55/3.68         (~ (is_a_theorem @ (equivalent @ X0 @ X1))
% 20.55/3.68          | ~ (is_a_theorem @ X0)
% 20.55/3.68          |  (is_a_theorem @ X1))),
% 20.55/3.68      inference('cnf', [status(esa)], [condensed_detachment])).
% 20.55/3.68  thf(zip_derived_cl46, plain,
% 20.55/3.68      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i]:
% 20.55/3.68         (~ (is_a_theorem @ (equivalent @ X3 @ (equivalent @ X2 @ X1)))
% 20.55/3.68          | ~ (is_a_theorem @ X3)
% 20.55/3.68          |  (is_a_theorem @ 
% 20.55/3.68              (equivalent @ (equivalent @ X2 @ X0) @ (equivalent @ X1 @ X0))))),
% 20.55/3.68      inference('s_sup-', [status(thm)], [zip_derived_cl38, zip_derived_cl0])).
% 20.55/3.68  thf(zip_derived_cl146, plain,
% 20.55/3.68      (![X0 : $i, X1 : $i, X2 : $i]:
% 20.55/3.68         (~ (is_a_theorem @ (equivalent @ X1 @ X0))
% 20.55/3.68          |  (is_a_theorem @ 
% 20.55/3.68              (equivalent @ (equivalent @ X1 @ X2) @ (equivalent @ X0 @ X2))))),
% 20.55/3.68      inference('s_sup-', [status(thm)], [zip_derived_cl130, zip_derived_cl46])).
% 20.55/3.68  thf(zip_derived_cl169, plain,
% 20.55/3.68      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i]:
% 20.55/3.68          (is_a_theorem @ 
% 20.55/3.68           (equivalent @ 
% 20.55/3.68            (equivalent @ 
% 20.55/3.68             (equivalent @ (equivalent @ X1 @ X2) @ (equivalent @ X0 @ X2)) @ 
% 20.55/3.68             X3) @ 
% 20.55/3.68            (equivalent @ (equivalent @ X1 @ X0) @ X3)))),
% 20.55/3.68      inference('s_sup-', [status(thm)], [zip_derived_cl11, zip_derived_cl146])).
% 20.55/3.68  thf(zip_derived_cl130, plain,
% 20.55/3.68      (![X1 : $i]:  (is_a_theorem @ (equivalent @ X1 @ X1))),
% 20.55/3.68      inference('s_sup-', [status(thm)], [zip_derived_cl109, zip_derived_cl30])).
% 20.55/3.68  thf(zip_derived_cl169, plain,
% 20.55/3.68      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i]:
% 20.55/3.68          (is_a_theorem @ 
% 20.55/3.68           (equivalent @ 
% 20.55/3.68            (equivalent @ 
% 20.55/3.68             (equivalent @ (equivalent @ X1 @ X2) @ (equivalent @ X0 @ X2)) @ 
% 20.55/3.68             X3) @ 
% 20.55/3.68            (equivalent @ (equivalent @ X1 @ X0) @ X3)))),
% 20.55/3.68      inference('s_sup-', [status(thm)], [zip_derived_cl11, zip_derived_cl146])).
% 20.55/3.68  thf(zip_derived_cl0, plain,
% 20.55/3.68      (![X0 : $i, X1 : $i]:
% 20.55/3.68         (~ (is_a_theorem @ (equivalent @ X0 @ X1))
% 20.55/3.68          | ~ (is_a_theorem @ X0)
% 20.55/3.68          |  (is_a_theorem @ X1))),
% 20.55/3.68      inference('cnf', [status(esa)], [condensed_detachment])).
% 20.55/3.68  thf(zip_derived_cl218, plain,
% 20.55/3.68      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i]:
% 20.55/3.68         (~ (is_a_theorem @ 
% 20.55/3.68             (equivalent @ 
% 20.55/3.68              (equivalent @ (equivalent @ X2 @ X3) @ (equivalent @ X1 @ X3)) @ 
% 20.55/3.68              X0))
% 20.55/3.68          |  (is_a_theorem @ (equivalent @ (equivalent @ X2 @ X1) @ X0)))),
% 20.55/3.68      inference('s_sup-', [status(thm)], [zip_derived_cl169, zip_derived_cl0])).
% 20.55/3.68  thf(zip_derived_cl146, plain,
% 20.55/3.68      (![X0 : $i, X1 : $i, X2 : $i]:
% 20.55/3.68         (~ (is_a_theorem @ (equivalent @ X1 @ X0))
% 20.55/3.68          |  (is_a_theorem @ 
% 20.55/3.68              (equivalent @ (equivalent @ X1 @ X2) @ (equivalent @ X0 @ X2))))),
% 20.55/3.68      inference('s_sup-', [status(thm)], [zip_derived_cl130, zip_derived_cl46])).
% 20.55/3.68  thf(zip_derived_cl248, plain,
% 20.55/3.68      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i]:
% 20.55/3.68         ( (is_a_theorem @ 
% 20.55/3.68            (equivalent @ (equivalent @ X3 @ X1) @ 
% 20.55/3.68             (equivalent @ X2 @ (equivalent @ X1 @ X0))))
% 20.55/3.68          | ~ (is_a_theorem @ (equivalent @ (equivalent @ X3 @ X0) @ X2)))),
% 20.55/3.68      inference('s_sup+', [status(thm)], [zip_derived_cl218, zip_derived_cl146])).
% 20.55/3.68  thf(zip_derived_cl30, plain,
% 20.55/3.68      (![X0 : $i, X1 : $i, X2 : $i]:
% 20.55/3.68         (~ (is_a_theorem @ 
% 20.55/3.68             (equivalent @ (equivalent @ X1 @ X2) @ (equivalent @ X0 @ X2)))
% 20.55/3.68          |  (is_a_theorem @ (equivalent @ X1 @ X0)))),
% 20.55/3.68      inference('s_sup-', [status(thm)], [zip_derived_cl11, zip_derived_cl0])).
% 20.55/3.68  thf(zip_derived_cl0, plain,
% 20.55/3.68      (![X0 : $i, X1 : $i]:
% 20.55/3.68         (~ (is_a_theorem @ (equivalent @ X0 @ X1))
% 20.55/3.68          | ~ (is_a_theorem @ X0)
% 20.55/3.68          |  (is_a_theorem @ X1))),
% 20.55/3.68      inference('cnf', [status(esa)], [condensed_detachment])).
% 20.55/3.68  thf(zip_derived_cl36, plain,
% 20.55/3.68      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i]:
% 20.55/3.68         ( (is_a_theorem @ (equivalent @ X2 @ X1))
% 20.55/3.68          | ~ (is_a_theorem @ 
% 20.55/3.68               (equivalent @ X3 @ 
% 20.55/3.68                (equivalent @ (equivalent @ X2 @ X0) @ (equivalent @ X1 @ X0))))
% 20.55/3.68          | ~ (is_a_theorem @ X3))),
% 20.55/3.68      inference('s_sup+', [status(thm)], [zip_derived_cl30, zip_derived_cl0])).
% 20.55/3.68  thf(zip_derived_cl305, plain,
% 20.55/3.68      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i]:
% 20.55/3.68         (~ (is_a_theorem @ 
% 20.55/3.68             (equivalent @ (equivalent @ X3 @ X0) @ (equivalent @ X2 @ X0)))
% 20.55/3.68          |  (is_a_theorem @ (equivalent @ X2 @ X1))
% 20.55/3.68          | ~ (is_a_theorem @ (equivalent @ X3 @ X1)))),
% 20.55/3.68      inference('s_sup-', [status(thm)], [zip_derived_cl248, zip_derived_cl36])).
% 20.55/3.68  thf(zip_derived_cl344, plain,
% 20.55/3.68      (![X0 : $i, X1 : $i, X2 : $i]:
% 20.55/3.68         (~ (is_a_theorem @ 
% 20.55/3.68             (equivalent @ (equivalent @ X0 @ X1) @ (equivalent @ X2 @ X1)))
% 20.55/3.68          |  (is_a_theorem @ (equivalent @ X2 @ X0)))),
% 20.55/3.68      inference('s_sup-', [status(thm)], [zip_derived_cl130, zip_derived_cl305])).
% 20.55/3.68  thf(zip_derived_cl46, plain,
% 20.55/3.68      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i]:
% 20.55/3.68         (~ (is_a_theorem @ (equivalent @ X3 @ (equivalent @ X2 @ X1)))
% 20.55/3.68          | ~ (is_a_theorem @ X3)
% 20.55/3.68          |  (is_a_theorem @ 
% 20.55/3.68              (equivalent @ (equivalent @ X2 @ X0) @ (equivalent @ X1 @ X0))))),
% 20.55/3.68      inference('s_sup-', [status(thm)], [zip_derived_cl38, zip_derived_cl0])).
% 20.55/3.68  thf(zip_derived_cl379, plain,
% 20.55/3.68      (![X1 : $i, X2 : $i, X3 : $i]:
% 20.55/3.68         ( (is_a_theorem @ (equivalent @ X1 @ X2))
% 20.55/3.68          | ~ (is_a_theorem @ (equivalent @ X3 @ (equivalent @ X2 @ X1)))
% 20.55/3.68          | ~ (is_a_theorem @ X3))),
% 20.55/3.68      inference('s_sup+', [status(thm)], [zip_derived_cl344, zip_derived_cl46])).
% 20.55/3.68  thf(zip_derived_cl695, plain,
% 20.55/3.68      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i]:
% 20.55/3.68         ( (is_a_theorem @ (equivalent @ X0 @ (equivalent @ X2 @ X1)))
% 20.55/3.68          | ~ (is_a_theorem @ 
% 20.55/3.68               (equivalent @ 
% 20.55/3.68                (equivalent @ (equivalent @ X2 @ X3) @ (equivalent @ X1 @ X3)) @ 
% 20.55/3.68                X0)))),
% 20.55/3.68      inference('s_sup-', [status(thm)], [zip_derived_cl169, zip_derived_cl379])).
% 20.55/3.68  thf(zip_derived_cl344, plain,
% 20.55/3.68      (![X0 : $i, X1 : $i, X2 : $i]:
% 20.55/3.68         (~ (is_a_theorem @ 
% 20.55/3.68             (equivalent @ (equivalent @ X0 @ X1) @ (equivalent @ X2 @ X1)))
% 20.55/3.68          |  (is_a_theorem @ (equivalent @ X2 @ X0)))),
% 20.55/3.68      inference('s_sup-', [status(thm)], [zip_derived_cl130, zip_derived_cl305])).
% 20.55/3.68  thf(zip_derived_cl146, plain,
% 20.55/3.68      (![X0 : $i, X1 : $i, X2 : $i]:
% 20.55/3.68         (~ (is_a_theorem @ (equivalent @ X1 @ X0))
% 20.55/3.68          |  (is_a_theorem @ 
% 20.55/3.68              (equivalent @ (equivalent @ X1 @ X2) @ (equivalent @ X0 @ X2))))),
% 20.55/3.68      inference('s_sup-', [status(thm)], [zip_derived_cl130, zip_derived_cl46])).
% 20.55/3.68  thf(zip_derived_cl378, plain,
% 20.55/3.68      (![X1 : $i, X2 : $i]:
% 20.55/3.68         ( (is_a_theorem @ (equivalent @ X1 @ X2))
% 20.55/3.68          | ~ (is_a_theorem @ (equivalent @ X2 @ X1)))),
% 20.55/3.68      inference('s_sup+', [status(thm)], [zip_derived_cl344, zip_derived_cl146])).
% 20.55/3.68  thf(zip_derived_cl1991, plain,
% 20.55/3.68      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i]:
% 20.55/3.68         ( (is_a_theorem @ (equivalent @ X0 @ (equivalent @ X3 @ X2)))
% 20.55/3.68          | ~ (is_a_theorem @ 
% 20.55/3.68               (equivalent @ X0 @ 
% 20.55/3.68                (equivalent @ (equivalent @ X3 @ X1) @ (equivalent @ X2 @ X1)))))),
% 20.55/3.68      inference('s_sup+', [status(thm)], [zip_derived_cl695, zip_derived_cl378])).
% 20.55/3.68  thf(zip_derived_cl146, plain,
% 20.55/3.68      (![X0 : $i, X1 : $i, X2 : $i]:
% 20.55/3.68         (~ (is_a_theorem @ (equivalent @ X1 @ X0))
% 20.55/3.68          |  (is_a_theorem @ 
% 20.55/3.68              (equivalent @ (equivalent @ X1 @ X2) @ (equivalent @ X0 @ X2))))),
% 20.55/3.68      inference('s_sup-', [status(thm)], [zip_derived_cl130, zip_derived_cl46])).
% 20.55/3.68  thf(zip_derived_cl2982, plain,
% 20.55/3.68      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i]:
% 20.55/3.68         ( (is_a_theorem @ 
% 20.55/3.68            (equivalent @ (equivalent @ X3 @ (equivalent @ X1 @ X0)) @ 
% 20.55/3.68             (equivalent @ X2 @ X1)))
% 20.55/3.68          | ~ (is_a_theorem @ (equivalent @ X3 @ (equivalent @ X2 @ X0))))),
% 20.55/3.68      inference('s_sup+', [status(thm)],
% 20.55/3.68                [zip_derived_cl1991, zip_derived_cl146])).
% 20.55/3.68  thf(zip_derived_cl50, plain,
% 20.55/3.68      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i]:
% 20.55/3.68         (~ (is_a_theorem @ 
% 20.55/3.68             (equivalent @ (equivalent @ X3 @ (equivalent @ X1 @ X0)) @ 
% 20.55/3.68              (equivalent @ X2 @ X1)))
% 20.55/3.68          |  (is_a_theorem @ (equivalent @ X3 @ (equivalent @ X2 @ X0))))),
% 20.55/3.68      inference('s_sup-', [status(thm)], [zip_derived_cl38, zip_derived_cl30])).
% 20.55/3.68  thf(zip_derived_cl1, plain,
% 20.55/3.68      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i]:
% 20.55/3.68          (is_a_theorem @ 
% 20.55/3.68           (equivalent @ X0 @ 
% 20.55/3.68            (equivalent @ X0 @ 
% 20.55/3.68             (equivalent @ 
% 20.55/3.68              (equivalent @ (equivalent @ X1 @ X2) @ (equivalent @ X3 @ X2)) @ 
% 20.55/3.68              (equivalent @ X1 @ X3)))))),
% 20.55/3.68      inference('cnf', [status(esa)], [s_3])).
% 20.55/3.68  thf(zip_derived_cl106, plain,
% 20.55/3.68      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i, X4 : $i]:
% 20.55/3.68          (is_a_theorem @ 
% 20.55/3.68           (equivalent @ X4 @ 
% 20.55/3.68            (equivalent @ 
% 20.55/3.68             (equivalent @ X4 @ 
% 20.55/3.68              (equivalent @ 
% 20.55/3.68               (equivalent @ 
% 20.55/3.68                (equivalent @ (equivalent @ X1 @ X2) @ (equivalent @ X0 @ X2)) @ 
% 20.55/3.68                (equivalent @ X1 @ X0)) @ 
% 20.55/3.68               X3)) @ 
% 20.55/3.68             X3)))),
% 20.55/3.68      inference('s_sup+', [status(thm)], [zip_derived_cl50, zip_derived_cl1])).
% 20.55/3.68  thf(zip_derived_cl38, plain,
% 20.55/3.68      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i]:
% 20.55/3.68         ( (is_a_theorem @ 
% 20.55/3.68            (equivalent @ X3 @ 
% 20.55/3.68             (equivalent @ (equivalent @ X1 @ X2) @ (equivalent @ X0 @ X2))))
% 20.55/3.68          | ~ (is_a_theorem @ (equivalent @ X3 @ (equivalent @ X1 @ X0))))),
% 20.55/3.68      inference('s_sup+', [status(thm)], [zip_derived_cl30, zip_derived_cl4])).
% 20.55/3.68  thf(zip_derived_cl11, plain,
% 20.55/3.68      (![X4 : $i, X5 : $i, X6 : $i]:
% 20.55/3.68          (is_a_theorem @ 
% 20.55/3.68           (equivalent @ 
% 20.55/3.68            (equivalent @ (equivalent @ X5 @ X6) @ (equivalent @ X4 @ X6)) @ 
% 20.55/3.68            (equivalent @ X5 @ X4)))),
% 20.55/3.68      inference('s_sup+', [status(thm)], [zip_derived_cl6, zip_derived_cl1])).
% 20.55/3.68  thf(zip_derived_cl6, plain,
% 20.55/3.68      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i]:
% 20.55/3.68         ( (is_a_theorem @ 
% 20.55/3.68            (equivalent @ 
% 20.55/3.68             (equivalent @ (equivalent @ X1 @ X2) @ (equivalent @ X0 @ X2)) @ 
% 20.55/3.68             (equivalent @ X1 @ X0)))
% 20.55/3.68          | ~ (is_a_theorem @ X3))),
% 20.55/3.68      inference('simplify', [status(thm)], [zip_derived_cl5])).
% 20.55/3.68  thf(zip_derived_cl6, plain,
% 20.55/3.68      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i]:
% 20.55/3.68         ( (is_a_theorem @ 
% 20.55/3.68            (equivalent @ 
% 20.55/3.68             (equivalent @ (equivalent @ X1 @ X2) @ (equivalent @ X0 @ X2)) @ 
% 20.55/3.68             (equivalent @ X1 @ X0)))
% 20.55/3.68          | ~ (is_a_theorem @ X3))),
% 20.55/3.68      inference('simplify', [status(thm)], [zip_derived_cl5])).
% 20.55/3.68  thf(prove_lg_2, conjecture,
% 20.55/3.68    (is_a_theorem @
% 20.55/3.68     ( equivalent @
% 20.55/3.68       a @ 
% 20.55/3.68       ( equivalent @
% 20.55/3.68         a @ 
% 20.55/3.68         ( equivalent @
% 20.55/3.68           ( equivalent @ b @ c ) @ 
% 20.55/3.68           ( equivalent @ ( equivalent @ b @ e ) @ ( equivalent @ c @ e ) ) ) ) ))).
% 20.55/3.68  thf(zf_stmt_0, negated_conjecture,
% 20.55/3.68    (~( is_a_theorem @
% 20.55/3.68        ( equivalent @
% 20.55/3.68          a @ 
% 20.55/3.68          ( equivalent @
% 20.55/3.68            a @ 
% 20.55/3.68            ( equivalent @
% 20.55/3.68              ( equivalent @ b @ c ) @ 
% 20.55/3.68              ( equivalent @ ( equivalent @ b @ e ) @ ( equivalent @ c @ e ) ) ) ) ) )),
% 20.55/3.68    inference('cnf.neg', [status(esa)], [prove_lg_2])).
% 20.55/3.68  thf(zip_derived_cl2, plain,
% 20.55/3.68      (~ (is_a_theorem @ 
% 20.55/3.68          (equivalent @ a @ 
% 20.55/3.68           (equivalent @ a @ 
% 20.55/3.68            (equivalent @ (equivalent @ b @ c) @ 
% 20.55/3.68             (equivalent @ (equivalent @ b @ e) @ (equivalent @ c @ e))))))),
% 20.55/3.68      inference('cnf', [status(esa)], [zf_stmt_0])).
% 20.55/3.68  thf(zip_derived_cl0, plain,
% 20.55/3.68      (![X0 : $i, X1 : $i]:
% 20.55/3.68         (~ (is_a_theorem @ (equivalent @ X0 @ X1))
% 20.55/3.68          | ~ (is_a_theorem @ X0)
% 20.55/3.68          |  (is_a_theorem @ X1))),
% 20.55/3.68      inference('cnf', [status(esa)], [condensed_detachment])).
% 20.55/3.68  thf(zip_derived_cl3, plain,
% 20.55/3.68      (![X0 : $i]:
% 20.55/3.68         (~ (is_a_theorem @ 
% 20.55/3.68             (equivalent @ X0 @ 
% 20.55/3.68              (equivalent @ a @ 
% 20.55/3.68               (equivalent @ a @ 
% 20.55/3.68                (equivalent @ (equivalent @ b @ c) @ 
% 20.55/3.68                 (equivalent @ (equivalent @ b @ e) @ (equivalent @ c @ e)))))))
% 20.55/3.68          | ~ (is_a_theorem @ X0))),
% 20.55/3.68      inference('s_sup+', [status(thm)], [zip_derived_cl2, zip_derived_cl0])).
% 20.55/3.68  thf(zip_derived_cl9, plain,
% 20.55/3.68      (![X0 : $i, X1 : $i]:
% 20.55/3.68         (~ (is_a_theorem @ X1)
% 20.55/3.68          | ~ (is_a_theorem @ 
% 20.55/3.68               (equivalent @ (equivalent @ a @ X0) @ 
% 20.55/3.68                (equivalent @ 
% 20.55/3.68                 (equivalent @ a @ 
% 20.55/3.68                  (equivalent @ (equivalent @ b @ c) @ 
% 20.55/3.68                   (equivalent @ (equivalent @ b @ e) @ (equivalent @ c @ e)))) @ 
% 20.55/3.68                 X0))))),
% 20.55/3.68      inference('s_sup-', [status(thm)], [zip_derived_cl6, zip_derived_cl3])).
% 20.55/3.68  thf(zip_derived_cl19, plain,
% 20.55/3.68      (![X0 : $i]:
% 20.55/3.68         ~ (is_a_theorem @ 
% 20.55/3.68            (equivalent @ (equivalent @ a @ X0) @ 
% 20.55/3.68             (equivalent @ 
% 20.55/3.68              (equivalent @ a @ 
% 20.55/3.68               (equivalent @ (equivalent @ b @ c) @ 
% 20.55/3.68                (equivalent @ (equivalent @ b @ e) @ (equivalent @ c @ e)))) @ 
% 20.55/3.68              X0)))),
% 20.55/3.68      inference('condensation', [status(thm)], [zip_derived_cl9])).
% 20.55/3.68  thf(zip_derived_cl0, plain,
% 20.55/3.68      (![X0 : $i, X1 : $i]:
% 20.55/3.68         (~ (is_a_theorem @ (equivalent @ X0 @ X1))
% 20.55/3.68          | ~ (is_a_theorem @ X0)
% 20.55/3.68          |  (is_a_theorem @ X1))),
% 20.55/3.68      inference('cnf', [status(esa)], [condensed_detachment])).
% 20.55/3.68  thf(zip_derived_cl20, plain,
% 20.55/3.68      (![X0 : $i, X1 : $i]:
% 20.55/3.68         (~ (is_a_theorem @ 
% 20.55/3.68             (equivalent @ X1 @ 
% 20.55/3.68              (equivalent @ (equivalent @ a @ X0) @ 
% 20.55/3.68               (equivalent @ 
% 20.55/3.68                (equivalent @ a @ 
% 20.55/3.68                 (equivalent @ (equivalent @ b @ c) @ 
% 20.55/3.68                  (equivalent @ (equivalent @ b @ e) @ (equivalent @ c @ e)))) @ 
% 20.55/3.68                X0))))
% 20.55/3.68          | ~ (is_a_theorem @ X1))),
% 20.55/3.68      inference('s_sup+', [status(thm)], [zip_derived_cl19, zip_derived_cl0])).
% 20.55/3.68  thf(zip_derived_cl21, plain,
% 20.55/3.68      (![X0 : $i, X1 : $i, X2 : $i]:
% 20.55/3.68         (~ (is_a_theorem @ X2)
% 20.55/3.68          | ~ (is_a_theorem @ 
% 20.55/3.68               (equivalent @ (equivalent @ (equivalent @ a @ X0) @ X1) @ 
% 20.55/3.68                (equivalent @ 
% 20.55/3.68                 (equivalent @ 
% 20.55/3.68                  (equivalent @ a @ 
% 20.55/3.68                   (equivalent @ (equivalent @ b @ c) @ 
% 20.55/3.68                    (equivalent @ (equivalent @ b @ e) @ (equivalent @ c @ e)))) @ 
% 20.55/3.68                  X0) @ 
% 20.55/3.68                 X1))))),
% 20.55/3.68      inference('s_sup-', [status(thm)], [zip_derived_cl6, zip_derived_cl20])).
% 20.55/3.68  thf(zip_derived_cl22, plain,
% 20.55/3.68      (![X0 : $i, X1 : $i]:
% 20.55/3.68         ~ (is_a_theorem @ 
% 20.55/3.68            (equivalent @ (equivalent @ (equivalent @ a @ X1) @ X0) @ 
% 20.55/3.68             (equivalent @ 
% 20.55/3.68              (equivalent @ 
% 20.55/3.68               (equivalent @ a @ 
% 20.55/3.68                (equivalent @ (equivalent @ b @ c) @ 
% 20.55/3.68                 (equivalent @ (equivalent @ b @ e) @ (equivalent @ c @ e)))) @ 
% 20.55/3.68               X1) @ 
% 20.55/3.68              X0)))),
% 20.55/3.68      inference('condensation', [status(thm)], [zip_derived_cl21])).
% 20.55/3.68  thf(zip_derived_cl0, plain,
% 20.55/3.68      (![X0 : $i, X1 : $i]:
% 20.55/3.68         (~ (is_a_theorem @ (equivalent @ X0 @ X1))
% 20.55/3.68          | ~ (is_a_theorem @ X0)
% 20.55/3.68          |  (is_a_theorem @ X1))),
% 20.55/3.68      inference('cnf', [status(esa)], [condensed_detachment])).
% 20.55/3.68  thf(zip_derived_cl23, plain,
% 20.55/3.68      (![X0 : $i, X1 : $i, X2 : $i]:
% 20.55/3.68         (~ (is_a_theorem @ 
% 20.55/3.68             (equivalent @ X2 @ 
% 20.55/3.68              (equivalent @ (equivalent @ (equivalent @ a @ X1) @ X0) @ 
% 20.55/3.68               (equivalent @ 
% 20.55/3.68                (equivalent @ 
% 20.55/3.68                 (equivalent @ a @ 
% 20.55/3.68                  (equivalent @ (equivalent @ b @ c) @ 
% 20.55/3.68                   (equivalent @ (equivalent @ b @ e) @ (equivalent @ c @ e)))) @ 
% 20.55/3.68                 X1) @ 
% 20.55/3.68                X0))))
% 20.55/3.68          | ~ (is_a_theorem @ X2))),
% 20.55/3.68      inference('s_sup+', [status(thm)], [zip_derived_cl22, zip_derived_cl0])).
% 20.55/3.68  thf(zip_derived_cl35, plain,
% 20.55/3.68      (![X0 : $i, X1 : $i, X2 : $i]:
% 20.55/3.68         ~ (is_a_theorem @ 
% 20.55/3.68            (equivalent @ 
% 20.55/3.68             (equivalent @ (equivalent @ (equivalent @ a @ X1) @ X0) @ X2) @ 
% 20.55/3.68             (equivalent @ 
% 20.55/3.68              (equivalent @ 
% 20.55/3.68               (equivalent @ 
% 20.55/3.68                (equivalent @ a @ 
% 20.55/3.68                 (equivalent @ (equivalent @ b @ c) @ 
% 20.55/3.68                  (equivalent @ (equivalent @ b @ e) @ (equivalent @ c @ e)))) @ 
% 20.55/3.68                X1) @ 
% 20.55/3.68               X0) @ 
% 20.55/3.68              X2)))),
% 20.55/3.68      inference('s_sup-', [status(thm)], [zip_derived_cl11, zip_derived_cl23])).
% 20.55/3.68  thf(zip_derived_cl54, plain,
% 20.55/3.68      (![X0 : $i, X1 : $i, X2 : $i]:
% 20.55/3.68         ~ (is_a_theorem @ 
% 20.55/3.68            (equivalent @ 
% 20.55/3.68             (equivalent @ (equivalent @ (equivalent @ a @ X2) @ X0) @ 
% 20.55/3.68              (equivalent @ X1 @ X0)) @ 
% 20.55/3.68             (equivalent @ 
% 20.55/3.68              (equivalent @ 
% 20.55/3.68               (equivalent @ a @ 
% 20.55/3.68                (equivalent @ (equivalent @ b @ c) @ 
% 20.55/3.68                 (equivalent @ (equivalent @ b @ e) @ (equivalent @ c @ e)))) @ 
% 20.55/3.68               X2) @ 
% 20.55/3.68              X1)))),
% 20.55/3.68      inference('s_sup-', [status(thm)], [zip_derived_cl38, zip_derived_cl35])).
% 20.55/3.68  thf(zip_derived_cl38, plain,
% 20.55/3.68      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i]:
% 20.55/3.68         ( (is_a_theorem @ 
% 20.55/3.68            (equivalent @ X3 @ 
% 20.55/3.68             (equivalent @ (equivalent @ X1 @ X2) @ (equivalent @ X0 @ X2))))
% 20.55/3.68          | ~ (is_a_theorem @ (equivalent @ X3 @ (equivalent @ X1 @ X0))))),
% 20.55/3.68      inference('s_sup+', [status(thm)], [zip_derived_cl30, zip_derived_cl4])).
% 20.55/3.68  thf(zip_derived_cl77, plain,
% 20.55/3.68      (![X0 : $i, X1 : $i, X2 : $i]:
% 20.55/3.68         ~ (is_a_theorem @ 
% 20.55/3.68            (equivalent @ 
% 20.55/3.68             (equivalent @ (equivalent @ (equivalent @ a @ X0) @ X2) @ 
% 20.55/3.68              (equivalent @ (equivalent @ X1 @ X0) @ X2)) @ 
% 20.55/3.68             (equivalent @ 
% 20.55/3.68              (equivalent @ a @ 
% 20.55/3.68               (equivalent @ (equivalent @ b @ c) @ 
% 20.55/3.68                (equivalent @ (equivalent @ b @ e) @ (equivalent @ c @ e)))) @ 
% 20.55/3.68              X1)))),
% 20.55/3.68      inference('s_sup+', [status(thm)], [zip_derived_cl54, zip_derived_cl38])).
% 20.55/3.68  thf(zip_derived_cl38, plain,
% 20.55/3.68      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i]:
% 20.55/3.68         ( (is_a_theorem @ 
% 20.55/3.68            (equivalent @ X3 @ 
% 20.55/3.68             (equivalent @ (equivalent @ X1 @ X2) @ (equivalent @ X0 @ X2))))
% 20.55/3.68          | ~ (is_a_theorem @ (equivalent @ X3 @ (equivalent @ X1 @ X0))))),
% 20.55/3.68      inference('s_sup+', [status(thm)], [zip_derived_cl30, zip_derived_cl4])).
% 20.55/3.68  thf(zip_derived_cl100, plain,
% 20.55/3.68      (![X0 : $i, X1 : $i, X2 : $i]:
% 20.55/3.68         ~ (is_a_theorem @ 
% 20.55/3.68            (equivalent @ 
% 20.55/3.68             (equivalent @ (equivalent @ (equivalent @ a @ X2) @ X1) @ 
% 20.55/3.68              (equivalent @ 
% 20.55/3.68               (equivalent @ 
% 20.55/3.68                (equivalent @ X0 @ 
% 20.55/3.68                 (equivalent @ (equivalent @ b @ c) @ 
% 20.55/3.68                  (equivalent @ (equivalent @ b @ e) @ (equivalent @ c @ e)))) @ 
% 20.55/3.68                X2) @ 
% 20.55/3.68               X1)) @ 
% 20.55/3.68             (equivalent @ a @ X0)))),
% 20.55/3.68      inference('s_sup+', [status(thm)], [zip_derived_cl77, zip_derived_cl38])).
% 20.55/3.68  thf(zip_derived_cl0, plain,
% 20.55/3.68      (![X0 : $i, X1 : $i]:
% 20.55/3.68         (~ (is_a_theorem @ (equivalent @ X0 @ X1))
% 20.55/3.68          | ~ (is_a_theorem @ X0)
% 20.55/3.68          |  (is_a_theorem @ X1))),
% 20.55/3.68      inference('cnf', [status(esa)], [condensed_detachment])).
% 20.55/3.68  thf(zip_derived_cl157, plain,
% 20.55/3.68      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i]:
% 20.55/3.68         (~ (is_a_theorem @ 
% 20.55/3.68             (equivalent @ X3 @ 
% 20.55/3.68              (equivalent @ 
% 20.55/3.68               (equivalent @ (equivalent @ (equivalent @ a @ X2) @ X1) @ 
% 20.55/3.68                (equivalent @ 
% 20.55/3.68                 (equivalent @ 
% 20.55/3.68                  (equivalent @ X0 @ 
% 20.55/3.68                   (equivalent @ (equivalent @ b @ c) @ 
% 20.55/3.68                    (equivalent @ (equivalent @ b @ e) @ (equivalent @ c @ e)))) @ 
% 20.55/3.68                  X2) @ 
% 20.55/3.68                 X1)) @ 
% 20.55/3.68               (equivalent @ a @ X0))))
% 20.55/3.68          | ~ (is_a_theorem @ X3))),
% 20.55/3.68      inference('s_sup+', [status(thm)], [zip_derived_cl100, zip_derived_cl0])).
% 20.55/3.68  thf(zip_derived_cl1209, plain,
% 20.55/3.68      (![X0 : $i]:
% 20.55/3.68         ~ (is_a_theorem @ 
% 20.55/3.68            (equivalent @ 
% 20.55/3.68             (equivalent @ a @ (equivalent @ X0 @ (equivalent @ b @ c))) @ 
% 20.55/3.68             (equivalent @ a @ 
% 20.55/3.68              (equivalent @ X0 @ 
% 20.55/3.68               (equivalent @ (equivalent @ b @ e) @ (equivalent @ c @ e))))))),
% 20.55/3.68      inference('s_sup-', [status(thm)], [zip_derived_cl106, zip_derived_cl157])).
% 20.55/3.68  thf(zip_derived_cl305, plain,
% 20.55/3.68      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i]:
% 20.55/3.68         (~ (is_a_theorem @ 
% 20.55/3.68             (equivalent @ (equivalent @ X3 @ X0) @ (equivalent @ X2 @ X0)))
% 20.55/3.68          |  (is_a_theorem @ (equivalent @ X2 @ X1))
% 20.55/3.68          | ~ (is_a_theorem @ (equivalent @ X3 @ X1)))),
% 20.55/3.68      inference('s_sup-', [status(thm)], [zip_derived_cl248, zip_derived_cl36])).
% 20.55/3.68  thf(zip_derived_cl1218, plain,
% 20.55/3.68      (![X0 : $i, X1 : $i, X2 : $i]:
% 20.55/3.68         (~ (is_a_theorem @ 
% 20.55/3.68             (equivalent @ (equivalent @ X2 @ X1) @ 
% 20.55/3.68              (equivalent @ 
% 20.55/3.68               (equivalent @ a @ (equivalent @ X0 @ (equivalent @ b @ c))) @ X1)))
% 20.55/3.68          | ~ (is_a_theorem @ 
% 20.55/3.68               (equivalent @ X2 @ 
% 20.55/3.68                (equivalent @ a @ 
% 20.55/3.68                 (equivalent @ X0 @ 
% 20.55/3.68                  (equivalent @ (equivalent @ b @ e) @ (equivalent @ c @ e)))))))),
% 20.55/3.68      inference('s_sup+', [status(thm)],
% 20.55/3.68                [zip_derived_cl1209, zip_derived_cl305])).
% 20.55/3.68  thf(zip_derived_cl146, plain,
% 20.55/3.68      (![X0 : $i, X1 : $i, X2 : $i]:
% 20.55/3.68         (~ (is_a_theorem @ (equivalent @ X1 @ X0))
% 20.55/3.68          |  (is_a_theorem @ 
% 20.55/3.68              (equivalent @ (equivalent @ X1 @ X2) @ (equivalent @ X0 @ X2))))),
% 20.55/3.68      inference('s_sup-', [status(thm)], [zip_derived_cl130, zip_derived_cl46])).
% 20.55/3.68  thf(zip_derived_cl1270, plain,
% 20.55/3.68      (![X1 : $i, X2 : $i]:
% 20.55/3.68         (~ (is_a_theorem @ 
% 20.55/3.68             (equivalent @ X2 @ 
% 20.55/3.68              (equivalent @ a @ 
% 20.55/3.68               (equivalent @ X1 @ 
% 20.55/3.68                (equivalent @ (equivalent @ b @ e) @ (equivalent @ c @ e))))))
% 20.55/3.68          | ~ (is_a_theorem @ 
% 20.55/3.68               (equivalent @ X2 @ 
% 20.55/3.68                (equivalent @ a @ (equivalent @ X1 @ (equivalent @ b @ c))))))),
% 20.55/3.68      inference('s_sup+', [status(thm)],
% 20.55/3.68                [zip_derived_cl1218, zip_derived_cl146])).
% 20.55/3.68  thf(zip_derived_cl378, plain,
% 20.55/3.68      (![X1 : $i, X2 : $i]:
% 20.55/3.68         ( (is_a_theorem @ (equivalent @ X1 @ X2))
% 20.55/3.68          | ~ (is_a_theorem @ (equivalent @ X2 @ X1)))),
% 20.55/3.68      inference('s_sup+', [status(thm)], [zip_derived_cl344, zip_derived_cl146])).
% 20.55/3.68  thf(zip_derived_cl1317, plain,
% 20.55/3.68      (![X0 : $i, X1 : $i]:
% 20.55/3.68         (~ (is_a_theorem @ 
% 20.55/3.68             (equivalent @ X1 @ 
% 20.55/3.68              (equivalent @ a @ (equivalent @ X0 @ (equivalent @ b @ c)))))
% 20.55/3.68          | ~ (is_a_theorem @ 
% 20.55/3.68               (equivalent @ 
% 20.55/3.68                (equivalent @ a @ 
% 20.55/3.68                 (equivalent @ X0 @ 
% 20.55/3.68                  (equivalent @ (equivalent @ b @ e) @ (equivalent @ c @ e)))) @ 
% 20.55/3.68                X1)))),
% 20.55/3.68      inference('s_sup+', [status(thm)],
% 20.55/3.68                [zip_derived_cl1270, zip_derived_cl378])).
% 20.55/3.68  thf(zip_derived_cl4674, plain,
% 20.55/3.68      (![X0 : $i, X1 : $i]:
% 20.55/3.68         (~ (is_a_theorem @ 
% 20.55/3.68             (equivalent @ a @ 
% 20.55/3.68              (equivalent @ X1 @ 
% 20.55/3.68               (equivalent @ (equivalent @ b @ e) @ (equivalent @ c @ e)))))
% 20.55/3.68          | ~ (is_a_theorem @ 
% 20.55/3.68               (equivalent @ (equivalent @ X1 @ X0) @ 
% 20.55/3.68                (equivalent @ a @ (equivalent @ X0 @ (equivalent @ b @ c))))))),
% 20.55/3.68      inference('s_sup-', [status(thm)],
% 20.55/3.68                [zip_derived_cl2982, zip_derived_cl1317])).
% 20.55/3.68  thf(zip_derived_cl248, plain,
% 20.55/3.68      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i]:
% 20.55/3.68         ( (is_a_theorem @ 
% 20.55/3.68            (equivalent @ (equivalent @ X3 @ X1) @ 
% 20.55/3.68             (equivalent @ X2 @ (equivalent @ X1 @ X0))))
% 20.55/3.68          | ~ (is_a_theorem @ (equivalent @ (equivalent @ X3 @ X0) @ X2)))),
% 20.55/3.68      inference('s_sup+', [status(thm)], [zip_derived_cl218, zip_derived_cl146])).
% 20.55/3.68  thf(zip_derived_cl4733, plain,
% 20.55/3.68      (![X1 : $i]:
% 20.55/3.68         (~ (is_a_theorem @ 
% 20.55/3.68             (equivalent @ a @ 
% 20.55/3.68              (equivalent @ X1 @ 
% 20.55/3.68               (equivalent @ (equivalent @ b @ e) @ (equivalent @ c @ e)))))
% 20.55/3.68          | ~ (is_a_theorem @ 
% 20.55/3.68               (equivalent @ (equivalent @ X1 @ (equivalent @ b @ c)) @ a)))),
% 20.55/3.68      inference('s_sup+', [status(thm)],
% 20.55/3.68                [zip_derived_cl4674, zip_derived_cl248])).
% 20.55/3.68  thf(zip_derived_cl38, plain,
% 20.55/3.68      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i]:
% 20.55/3.68         ( (is_a_theorem @ 
% 20.55/3.68            (equivalent @ X3 @ 
% 20.55/3.68             (equivalent @ (equivalent @ X1 @ X2) @ (equivalent @ X0 @ X2))))
% 20.55/3.68          | ~ (is_a_theorem @ (equivalent @ X3 @ (equivalent @ X1 @ X0))))),
% 20.55/3.68      inference('s_sup+', [status(thm)], [zip_derived_cl30, zip_derived_cl4])).
% 20.55/3.68  thf(zip_derived_cl4746, plain,
% 20.55/3.68      (![X0 : $i]:
% 20.55/3.68         (~ (is_a_theorem @ 
% 20.55/3.68             (equivalent @ 
% 20.55/3.68              (equivalent @ (equivalent @ X0 @ (equivalent @ c @ e)) @ 
% 20.55/3.68               (equivalent @ b @ c)) @ 
% 20.55/3.68              a))
% 20.55/3.68          | ~ (is_a_theorem @ 
% 20.55/3.68               (equivalent @ a @ (equivalent @ X0 @ (equivalent @ b @ e)))))),
% 20.55/3.68      inference('s_sup+', [status(thm)], [zip_derived_cl4733, zip_derived_cl38])).
% 20.55/3.68  thf(zip_derived_cl378, plain,
% 20.55/3.68      (![X1 : $i, X2 : $i]:
% 20.55/3.68         ( (is_a_theorem @ (equivalent @ X1 @ X2))
% 20.55/3.68          | ~ (is_a_theorem @ (equivalent @ X2 @ X1)))),
% 20.55/3.68      inference('s_sup+', [status(thm)], [zip_derived_cl344, zip_derived_cl146])).
% 20.55/3.68  thf(zip_derived_cl4777, plain,
% 20.55/3.68      (![X0 : $i]:
% 20.55/3.68         (~ (is_a_theorem @ 
% 20.55/3.68             (equivalent @ a @ (equivalent @ X0 @ (equivalent @ b @ e))))
% 20.55/3.68          | ~ (is_a_theorem @ 
% 20.55/3.68               (equivalent @ a @ 
% 20.55/3.68                (equivalent @ (equivalent @ X0 @ (equivalent @ c @ e)) @ 
% 20.55/3.68                 (equivalent @ b @ c)))))),
% 20.55/3.68      inference('s_sup+', [status(thm)],
% 20.55/3.68                [zip_derived_cl4746, zip_derived_cl378])).
% 20.55/3.68  thf(zip_derived_cl50, plain,
% 20.55/3.68      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i]:
% 20.55/3.68         (~ (is_a_theorem @ 
% 20.55/3.68             (equivalent @ (equivalent @ X3 @ (equivalent @ X1 @ X0)) @ 
% 20.55/3.68              (equivalent @ X2 @ X1)))
% 20.55/3.68          |  (is_a_theorem @ (equivalent @ X3 @ (equivalent @ X2 @ X0))))),
% 20.55/3.68      inference('s_sup-', [status(thm)], [zip_derived_cl38, zip_derived_cl30])).
% 20.55/3.68  thf(zip_derived_cl4, plain,
% 20.55/3.68      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i]:
% 20.55/3.68         (~ (is_a_theorem @ X3)
% 20.55/3.68          |  (is_a_theorem @ 
% 20.55/3.68              (equivalent @ X3 @ 
% 20.55/3.68               (equivalent @ 
% 20.55/3.68                (equivalent @ (equivalent @ X1 @ X2) @ (equivalent @ X0 @ X2)) @ 
% 20.55/3.68                (equivalent @ X1 @ X0)))))),
% 20.55/3.68      inference('s_sup-', [status(thm)], [zip_derived_cl1, zip_derived_cl0])).
% 20.55/3.68  thf(zip_derived_cl107, plain,
% 20.55/3.68      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i, X4 : $i]:
% 20.55/3.68         ( (is_a_theorem @ 
% 20.55/3.68            (equivalent @ X4 @ 
% 20.55/3.68             (equivalent @ 
% 20.55/3.68              (equivalent @ (equivalent @ X1 @ X2) @ (equivalent @ X0 @ X2)) @ 
% 20.55/3.68              X3)))
% 20.55/3.68          | ~ (is_a_theorem @ 
% 20.55/3.68               (equivalent @ X4 @ (equivalent @ (equivalent @ X1 @ X0) @ X3))))),
% 20.55/3.68      inference('s_sup+', [status(thm)], [zip_derived_cl50, zip_derived_cl4])).
% 20.55/3.68  thf(zip_derived_cl4941, plain,
% 20.55/3.68      (![X0 : $i]:
% 20.55/3.68         (~ (is_a_theorem @ 
% 20.55/3.68             (equivalent @ a @ 
% 20.55/3.68              (equivalent @ (equivalent @ X0 @ e) @ (equivalent @ b @ e))))
% 20.55/3.68          | ~ (is_a_theorem @ 
% 20.55/3.68               (equivalent @ a @ 
% 20.55/3.68                (equivalent @ (equivalent @ X0 @ c) @ (equivalent @ b @ c)))))),
% 20.55/3.68      inference('s_sup+', [status(thm)],
% 20.55/3.68                [zip_derived_cl4777, zip_derived_cl107])).
% 20.55/3.68  thf(zip_derived_cl38, plain,
% 20.55/3.68      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i]:
% 20.55/3.68         ( (is_a_theorem @ 
% 20.55/3.68            (equivalent @ X3 @ 
% 20.55/3.68             (equivalent @ (equivalent @ X1 @ X2) @ (equivalent @ X0 @ X2))))
% 20.55/3.68          | ~ (is_a_theorem @ (equivalent @ X3 @ (equivalent @ X1 @ X0))))),
% 20.55/3.68      inference('s_sup+', [status(thm)], [zip_derived_cl30, zip_derived_cl4])).
% 20.55/3.68  thf(zip_derived_cl4953, plain,
% 20.55/3.68      (![X0 : $i]:
% 20.55/3.68         (~ (is_a_theorem @ 
% 20.55/3.68             (equivalent @ a @ 
% 20.55/3.68              (equivalent @ (equivalent @ X0 @ c) @ (equivalent @ b @ c))))
% 20.55/3.68          | ~ (is_a_theorem @ (equivalent @ a @ (equivalent @ X0 @ b))))),
% 20.55/3.68      inference('s_sup+', [status(thm)], [zip_derived_cl4941, zip_derived_cl38])).
% 20.55/3.68  thf(zip_derived_cl38, plain,
% 20.55/3.68      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i]:
% 20.55/3.68         ( (is_a_theorem @ 
% 20.55/3.68            (equivalent @ X3 @ 
% 20.55/3.68             (equivalent @ (equivalent @ X1 @ X2) @ (equivalent @ X0 @ X2))))
% 20.55/3.68          | ~ (is_a_theorem @ (equivalent @ X3 @ (equivalent @ X1 @ X0))))),
% 20.55/3.68      inference('s_sup+', [status(thm)], [zip_derived_cl30, zip_derived_cl4])).
% 20.55/3.68  thf(zip_derived_cl4957, plain,
% 20.55/3.68      (![X0 : $i]: ~ (is_a_theorem @ (equivalent @ a @ (equivalent @ X0 @ b)))),
% 20.55/3.68      inference('clc', [status(thm)], [zip_derived_cl4953, zip_derived_cl38])).
% 20.55/3.68  thf(zip_derived_cl106, plain,
% 20.55/3.68      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i, X4 : $i]:
% 20.55/3.68          (is_a_theorem @ 
% 20.55/3.68           (equivalent @ X4 @ 
% 20.55/3.68            (equivalent @ 
% 20.55/3.68             (equivalent @ X4 @ 
% 20.55/3.68              (equivalent @ 
% 20.55/3.68               (equivalent @ 
% 20.55/3.68                (equivalent @ (equivalent @ X1 @ X2) @ (equivalent @ X0 @ X2)) @ 
% 20.55/3.68                (equivalent @ X1 @ X0)) @ 
% 20.55/3.68               X3)) @ 
% 20.55/3.68             X3)))),
% 20.55/3.68      inference('s_sup+', [status(thm)], [zip_derived_cl50, zip_derived_cl1])).
% 20.55/3.68  thf(zip_derived_cl4969, plain, ($false),
% 20.55/3.68      inference('s_sup+', [status(thm)],
% 20.55/3.68                [zip_derived_cl4957, zip_derived_cl106])).
% 20.55/3.68  
% 20.55/3.68  % SZS output end Refutation
% 20.55/3.68  
% 20.55/3.68  
% 20.55/3.68  % /export/starexec/sandbox2/solver/bin/fo/fo1_lcnf.sh running for 50s
% 20.55/3.68  % Terminating...
% 22.45/4.06  % Runner terminated.
% 22.45/4.08  % Zipperpin 1.5 exiting
%------------------------------------------------------------------------------