TSTP Solution File: LCL024-1 by Zipperpin---2.1.9999

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : Zipperpin---2.1.9999
% Problem  : LCL024-1 : 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.LcRodrYjUY true

% Computer : n010.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 08:57:52 EDT 2023

% Result   : Unsatisfiable 90.28s 13.50s
% Output   : Refutation 90.28s
% Verified : 
% SZS Type : -

% Comments : 
%------------------------------------------------------------------------------
%----WARNING: Could not form TPTP format derivation
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.14  % Problem  : LCL024-1 : TPTP v8.1.2. Released v1.0.0.
% 0.15/0.15  % Command  : python3 /export/starexec/sandbox/solver/bin/portfolio.lams.parallel.py %s %d /export/starexec/sandbox/tmp/tmp.LcRodrYjUY true
% 0.15/0.36  % Computer : n010.cluster.edu
% 0.15/0.36  % Model    : x86_64 x86_64
% 0.15/0.36  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.15/0.36  % Memory   : 8042.1875MB
% 0.15/0.36  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.15/0.37  % CPULimit : 300
% 0.15/0.37  % WCLimit  : 300
% 0.15/0.37  % DateTime : Fri Aug 25 05:30:35 EDT 2023
% 0.15/0.37  % CPUTime  : 
% 0.15/0.37  % Running portfolio for 300 s
% 0.15/0.37  % File         : /export/starexec/sandbox/benchmark/theBenchmark.p
% 0.15/0.37  % Number of cores: 8
% 0.15/0.37  % Python version: Python 3.6.8
% 0.15/0.37  % Running in FO mode
% 0.23/0.59  % Total configuration time : 435
% 0.23/0.59  % Estimated wc time : 1092
% 0.23/0.59  % Estimated cpu time (7 cpus) : 156.0
% 0.23/0.64  % /export/starexec/sandbox/solver/bin/fo/fo6_bce.sh running for 75s
% 0.23/0.69  % /export/starexec/sandbox/solver/bin/fo/fo3_bce.sh running for 75s
% 0.23/0.70  % /export/starexec/sandbox/solver/bin/fo/fo1_av.sh running for 75s
% 0.23/0.71  % /export/starexec/sandbox/solver/bin/fo/fo7.sh running for 63s
% 0.23/0.71  % /export/starexec/sandbox/solver/bin/fo/fo13.sh running for 50s
% 0.23/0.71  % /export/starexec/sandbox/solver/bin/fo/fo4.sh running for 50s
% 0.23/0.71  % /export/starexec/sandbox/solver/bin/fo/fo5.sh running for 50s
% 90.28/13.50  % Solved by fo/fo13.sh.
% 90.28/13.50  % done 4926 iterations in 12.767s
% 90.28/13.50  % SZS status Theorem for '/export/starexec/sandbox/benchmark/theBenchmark.p'
% 90.28/13.50  % SZS output start Refutation
% 90.28/13.50  thf(a_type, type, a: $i).
% 90.28/13.50  thf(is_a_theorem_type, type, is_a_theorem: $i > $o).
% 90.28/13.50  thf(equivalent_type, type, equivalent: $i > $i > $i).
% 90.28/13.50  thf(c_type, type, c: $i).
% 90.28/13.50  thf(b_type, type, b: $i).
% 90.28/13.50  thf(xgk, axiom,
% 90.28/13.50    (is_a_theorem @
% 90.28/13.50     ( equivalent @
% 90.28/13.50       X @ 
% 90.28/13.50       ( equivalent @
% 90.28/13.50         ( equivalent @ Y @ ( equivalent @ Z @ X ) ) @ ( equivalent @ Z @ Y ) ) ))).
% 90.28/13.50  thf(zip_derived_cl1, plain,
% 90.28/13.50      (![X0 : $i, X1 : $i, X2 : $i]:
% 90.28/13.50          (is_a_theorem @ 
% 90.28/13.50           (equivalent @ X0 @ 
% 90.28/13.50            (equivalent @ (equivalent @ X1 @ (equivalent @ X2 @ X0)) @ 
% 90.28/13.50             (equivalent @ X2 @ X1))))),
% 90.28/13.50      inference('cnf', [status(esa)], [xgk])).
% 90.28/13.50  thf(zip_derived_cl1, plain,
% 90.28/13.50      (![X0 : $i, X1 : $i, X2 : $i]:
% 90.28/13.50          (is_a_theorem @ 
% 90.28/13.50           (equivalent @ X0 @ 
% 90.28/13.50            (equivalent @ (equivalent @ X1 @ (equivalent @ X2 @ X0)) @ 
% 90.28/13.50             (equivalent @ X2 @ X1))))),
% 90.28/13.50      inference('cnf', [status(esa)], [xgk])).
% 90.28/13.50  thf(zip_derived_cl1, plain,
% 90.28/13.50      (![X0 : $i, X1 : $i, X2 : $i]:
% 90.28/13.50          (is_a_theorem @ 
% 90.28/13.50           (equivalent @ X0 @ 
% 90.28/13.50            (equivalent @ (equivalent @ X1 @ (equivalent @ X2 @ X0)) @ 
% 90.28/13.50             (equivalent @ X2 @ X1))))),
% 90.28/13.50      inference('cnf', [status(esa)], [xgk])).
% 90.28/13.50  thf(condensed_detachment, axiom,
% 90.28/13.50    (( ~( is_a_theorem @ ( equivalent @ X @ Y ) ) ) | 
% 90.28/13.50     ( ~( is_a_theorem @ X ) ) | ( is_a_theorem @ Y ))).
% 90.28/13.50  thf(zip_derived_cl0, plain,
% 90.28/13.50      (![X0 : $i, X1 : $i]:
% 90.28/13.50         (~ (is_a_theorem @ (equivalent @ X0 @ X1))
% 90.28/13.50          | ~ (is_a_theorem @ X0)
% 90.28/13.50          |  (is_a_theorem @ X1))),
% 90.28/13.50      inference('cnf', [status(esa)], [condensed_detachment])).
% 90.28/13.50  thf(zip_derived_cl4, plain,
% 90.28/13.50      (![X0 : $i, X1 : $i, X2 : $i]:
% 90.28/13.50         (~ (is_a_theorem @ X2)
% 90.28/13.50          |  (is_a_theorem @ 
% 90.28/13.50              (equivalent @ (equivalent @ X0 @ (equivalent @ X1 @ X2)) @ 
% 90.28/13.50               (equivalent @ X1 @ X0))))),
% 90.28/13.50      inference('s_sup-', [status(thm)], [zip_derived_cl1, zip_derived_cl0])).
% 90.28/13.50  thf(zip_derived_cl0, plain,
% 90.28/13.50      (![X0 : $i, X1 : $i]:
% 90.28/13.50         (~ (is_a_theorem @ (equivalent @ X0 @ X1))
% 90.28/13.50          | ~ (is_a_theorem @ X0)
% 90.28/13.50          |  (is_a_theorem @ X1))),
% 90.28/13.50      inference('cnf', [status(esa)], [condensed_detachment])).
% 90.28/13.50  thf(zip_derived_cl5, plain,
% 90.28/13.50      (![X0 : $i, X1 : $i, X2 : $i]:
% 90.28/13.50         (~ (is_a_theorem @ X2)
% 90.28/13.50          | ~ (is_a_theorem @ (equivalent @ X0 @ (equivalent @ X1 @ X2)))
% 90.28/13.50          |  (is_a_theorem @ (equivalent @ X1 @ X0)))),
% 90.28/13.50      inference('s_sup-', [status(thm)], [zip_derived_cl4, zip_derived_cl0])).
% 90.28/13.50  thf(zip_derived_cl7, plain,
% 90.28/13.50      (![X0 : $i, X1 : $i, X2 : $i]:
% 90.28/13.50         (~ (is_a_theorem @ (equivalent @ X1 @ X0))
% 90.28/13.50          |  (is_a_theorem @ 
% 90.28/13.50              (equivalent @ (equivalent @ X0 @ (equivalent @ X1 @ X2)) @ X2)))),
% 90.28/13.50      inference('s_sup-', [status(thm)], [zip_derived_cl1, zip_derived_cl5])).
% 90.28/13.50  thf(zip_derived_cl23, plain,
% 90.28/13.50      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i]:
% 90.28/13.50          (is_a_theorem @ 
% 90.28/13.50           (equivalent @ 
% 90.28/13.50            (equivalent @ 
% 90.28/13.50             (equivalent @ (equivalent @ X0 @ (equivalent @ X1 @ X2)) @ 
% 90.28/13.50              (equivalent @ X1 @ X0)) @ 
% 90.28/13.50             (equivalent @ X2 @ X3)) @ 
% 90.28/13.50            X3))),
% 90.28/13.50      inference('s_sup-', [status(thm)], [zip_derived_cl1, zip_derived_cl7])).
% 90.28/13.50  thf(zip_derived_cl0, plain,
% 90.28/13.50      (![X0 : $i, X1 : $i]:
% 90.28/13.50         (~ (is_a_theorem @ (equivalent @ X0 @ X1))
% 90.28/13.50          | ~ (is_a_theorem @ X0)
% 90.28/13.50          |  (is_a_theorem @ X1))),
% 90.28/13.50      inference('cnf', [status(esa)], [condensed_detachment])).
% 90.28/13.50  thf(zip_derived_cl51, plain,
% 90.28/13.50      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i]:
% 90.28/13.50         (~ (is_a_theorem @ 
% 90.28/13.50             (equivalent @ 
% 90.28/13.50              (equivalent @ (equivalent @ X2 @ (equivalent @ X3 @ X1)) @ 
% 90.28/13.50               (equivalent @ X3 @ X2)) @ 
% 90.28/13.50              (equivalent @ X1 @ X0)))
% 90.28/13.50          |  (is_a_theorem @ X0))),
% 90.28/13.50      inference('s_sup-', [status(thm)], [zip_derived_cl23, zip_derived_cl0])).
% 90.28/13.50  thf(zip_derived_cl23, plain,
% 90.28/13.50      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i]:
% 90.28/13.50          (is_a_theorem @ 
% 90.28/13.50           (equivalent @ 
% 90.28/13.50            (equivalent @ 
% 90.28/13.50             (equivalent @ (equivalent @ X0 @ (equivalent @ X1 @ X2)) @ 
% 90.28/13.50              (equivalent @ X1 @ X0)) @ 
% 90.28/13.50             (equivalent @ X2 @ X3)) @ 
% 90.28/13.50            X3))),
% 90.28/13.50      inference('s_sup-', [status(thm)], [zip_derived_cl1, zip_derived_cl7])).
% 90.28/13.50  thf(zip_derived_cl513, plain,
% 90.28/13.50      (![X0 : $i]:  (is_a_theorem @ (equivalent @ X0 @ X0))),
% 90.28/13.50      inference('s_sup+', [status(thm)], [zip_derived_cl51, zip_derived_cl23])).
% 90.28/13.50  thf(zip_derived_cl7, plain,
% 90.28/13.50      (![X0 : $i, X1 : $i, X2 : $i]:
% 90.28/13.50         (~ (is_a_theorem @ (equivalent @ X1 @ X0))
% 90.28/13.50          |  (is_a_theorem @ 
% 90.28/13.50              (equivalent @ (equivalent @ X0 @ (equivalent @ X1 @ X2)) @ X2)))),
% 90.28/13.50      inference('s_sup-', [status(thm)], [zip_derived_cl1, zip_derived_cl5])).
% 90.28/13.50  thf(zip_derived_cl527, plain,
% 90.28/13.50      (![X0 : $i, X1 : $i]:
% 90.28/13.50          (is_a_theorem @ 
% 90.28/13.50           (equivalent @ (equivalent @ X0 @ (equivalent @ X0 @ X1)) @ X1))),
% 90.28/13.50      inference('s_sup-', [status(thm)], [zip_derived_cl513, zip_derived_cl7])).
% 90.28/13.50  thf(zip_derived_cl51, plain,
% 90.28/13.50      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i]:
% 90.28/13.50         (~ (is_a_theorem @ 
% 90.28/13.50             (equivalent @ 
% 90.28/13.50              (equivalent @ (equivalent @ X2 @ (equivalent @ X3 @ X1)) @ 
% 90.28/13.50               (equivalent @ X3 @ X2)) @ 
% 90.28/13.50              (equivalent @ X1 @ X0)))
% 90.28/13.50          |  (is_a_theorem @ X0))),
% 90.28/13.50      inference('s_sup-', [status(thm)], [zip_derived_cl23, zip_derived_cl0])).
% 90.28/13.50  thf(zip_derived_cl4, plain,
% 90.28/13.50      (![X0 : $i, X1 : $i, X2 : $i]:
% 90.28/13.50         (~ (is_a_theorem @ X2)
% 90.28/13.50          |  (is_a_theorem @ 
% 90.28/13.50              (equivalent @ (equivalent @ X0 @ (equivalent @ X1 @ X2)) @ 
% 90.28/13.50               (equivalent @ X1 @ X0))))),
% 90.28/13.50      inference('s_sup-', [status(thm)], [zip_derived_cl1, zip_derived_cl0])).
% 90.28/13.50  thf(zip_derived_cl5, plain,
% 90.28/13.50      (![X0 : $i, X1 : $i, X2 : $i]:
% 90.28/13.50         (~ (is_a_theorem @ X2)
% 90.28/13.50          | ~ (is_a_theorem @ (equivalent @ X0 @ (equivalent @ X1 @ X2)))
% 90.28/13.50          |  (is_a_theorem @ (equivalent @ X1 @ X0)))),
% 90.28/13.50      inference('s_sup-', [status(thm)], [zip_derived_cl4, zip_derived_cl0])).
% 90.28/13.50  thf(zip_derived_cl8, plain,
% 90.28/13.50      (![X0 : $i, X1 : $i, X2 : $i]:
% 90.28/13.50         (~ (is_a_theorem @ X2)
% 90.28/13.50          | ~ (is_a_theorem @ X0)
% 90.28/13.50          |  (is_a_theorem @ 
% 90.28/13.50              (equivalent @ X1 @ (equivalent @ X0 @ (equivalent @ X1 @ X2)))))),
% 90.28/13.50      inference('s_sup-', [status(thm)], [zip_derived_cl4, zip_derived_cl5])).
% 90.28/13.50  thf(zip_derived_cl0, plain,
% 90.28/13.50      (![X0 : $i, X1 : $i]:
% 90.28/13.50         (~ (is_a_theorem @ (equivalent @ X0 @ X1))
% 90.28/13.50          | ~ (is_a_theorem @ X0)
% 90.28/13.50          |  (is_a_theorem @ X1))),
% 90.28/13.50      inference('cnf', [status(esa)], [condensed_detachment])).
% 90.28/13.50  thf(zip_derived_cl9, plain,
% 90.28/13.50      (![X0 : $i, X1 : $i, X2 : $i]:
% 90.28/13.50         (~ (is_a_theorem @ X2)
% 90.28/13.50          | ~ (is_a_theorem @ X0)
% 90.28/13.50          | ~ (is_a_theorem @ X1)
% 90.28/13.50          |  (is_a_theorem @ (equivalent @ X2 @ (equivalent @ X1 @ X0))))),
% 90.28/13.50      inference('s_sup-', [status(thm)], [zip_derived_cl8, zip_derived_cl0])).
% 90.28/13.50  thf(zip_derived_cl0, plain,
% 90.28/13.50      (![X0 : $i, X1 : $i]:
% 90.28/13.50         (~ (is_a_theorem @ (equivalent @ X0 @ X1))
% 90.28/13.50          | ~ (is_a_theorem @ X0)
% 90.28/13.50          |  (is_a_theorem @ X1))),
% 90.28/13.50      inference('cnf', [status(esa)], [condensed_detachment])).
% 90.28/13.50  thf(zip_derived_cl13, plain,
% 90.28/13.50      (![X0 : $i, X1 : $i, X2 : $i]:
% 90.28/13.50         (~ (is_a_theorem @ X1)
% 90.28/13.50          | ~ (is_a_theorem @ X0)
% 90.28/13.50          | ~ (is_a_theorem @ X2)
% 90.28/13.50          | ~ (is_a_theorem @ X2)
% 90.28/13.50          |  (is_a_theorem @ (equivalent @ X1 @ X0)))),
% 90.28/13.50      inference('s_sup-', [status(thm)], [zip_derived_cl9, zip_derived_cl0])).
% 90.28/13.50  thf(zip_derived_cl18, plain,
% 90.28/13.50      (![X0 : $i, X1 : $i, X2 : $i]:
% 90.28/13.50         ( (is_a_theorem @ (equivalent @ X1 @ X0))
% 90.28/13.50          | ~ (is_a_theorem @ X2)
% 90.28/13.50          | ~ (is_a_theorem @ X0)
% 90.28/13.50          | ~ (is_a_theorem @ X1))),
% 90.28/13.50      inference('simplify', [status(thm)], [zip_derived_cl13])).
% 90.28/13.50  thf(zip_derived_cl27, plain,
% 90.28/13.50      (![X0 : $i, X1 : $i]:
% 90.28/13.50         ( (is_a_theorem @ (equivalent @ X1 @ X0))
% 90.28/13.50          | ~ (is_a_theorem @ X1)
% 90.28/13.50          | ~ (is_a_theorem @ X0))),
% 90.28/13.50      inference('condensation', [status(thm)], [zip_derived_cl18])).
% 90.28/13.50  thf(zip_derived_cl7, plain,
% 90.28/13.50      (![X0 : $i, X1 : $i, X2 : $i]:
% 90.28/13.50         (~ (is_a_theorem @ (equivalent @ X1 @ X0))
% 90.28/13.50          |  (is_a_theorem @ 
% 90.28/13.50              (equivalent @ (equivalent @ X0 @ (equivalent @ X1 @ X2)) @ X2)))),
% 90.28/13.50      inference('s_sup-', [status(thm)], [zip_derived_cl1, zip_derived_cl5])).
% 90.28/13.50  thf(zip_derived_cl29, plain,
% 90.28/13.50      (![X0 : $i, X1 : $i, X2 : $i]:
% 90.28/13.50         (~ (is_a_theorem @ X0)
% 90.28/13.50          | ~ (is_a_theorem @ X1)
% 90.28/13.50          |  (is_a_theorem @ 
% 90.28/13.50              (equivalent @ (equivalent @ X0 @ (equivalent @ X1 @ X2)) @ X2)))),
% 90.28/13.50      inference('s_sup-', [status(thm)], [zip_derived_cl27, zip_derived_cl7])).
% 90.28/13.50  thf(zip_derived_cl512, plain,
% 90.28/13.50      (![X0 : $i, X1 : $i, X2 : $i]:
% 90.28/13.50         ( (is_a_theorem @ X0)
% 90.28/13.50          | ~ (is_a_theorem @ 
% 90.28/13.50               (equivalent @ (equivalent @ X1 @ X0) @ (equivalent @ X2 @ X1)))
% 90.28/13.50          | ~ (is_a_theorem @ X2))),
% 90.28/13.50      inference('s_sup+', [status(thm)], [zip_derived_cl51, zip_derived_cl29])).
% 90.28/13.50  thf(zip_derived_cl23863, plain,
% 90.28/13.50      (![X0 : $i, X1 : $i]:
% 90.28/13.50         ( (is_a_theorem @ (equivalent @ X0 @ (equivalent @ X1 @ X0)))
% 90.28/13.50          | ~ (is_a_theorem @ X1))),
% 90.28/13.50      inference('s_sup-', [status(thm)], [zip_derived_cl527, zip_derived_cl512])).
% 90.28/13.50  thf(zip_derived_cl23, plain,
% 90.28/13.50      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i]:
% 90.28/13.50          (is_a_theorem @ 
% 90.28/13.50           (equivalent @ 
% 90.28/13.50            (equivalent @ 
% 90.28/13.50             (equivalent @ (equivalent @ X0 @ (equivalent @ X1 @ X2)) @ 
% 90.28/13.50              (equivalent @ X1 @ X0)) @ 
% 90.28/13.50             (equivalent @ X2 @ X3)) @ 
% 90.28/13.50            X3))),
% 90.28/13.50      inference('s_sup-', [status(thm)], [zip_derived_cl1, zip_derived_cl7])).
% 90.28/13.50  thf(zip_derived_cl8, plain,
% 90.28/13.50      (![X0 : $i, X1 : $i, X2 : $i]:
% 90.28/13.50         (~ (is_a_theorem @ X2)
% 90.28/13.50          | ~ (is_a_theorem @ X0)
% 90.28/13.50          |  (is_a_theorem @ 
% 90.28/13.50              (equivalent @ X1 @ (equivalent @ X0 @ (equivalent @ X1 @ X2)))))),
% 90.28/13.50      inference('s_sup-', [status(thm)], [zip_derived_cl4, zip_derived_cl5])).
% 90.28/13.50  thf(zip_derived_cl5, plain,
% 90.28/13.50      (![X0 : $i, X1 : $i, X2 : $i]:
% 90.28/13.50         (~ (is_a_theorem @ X2)
% 90.28/13.50          | ~ (is_a_theorem @ (equivalent @ X0 @ (equivalent @ X1 @ X2)))
% 90.28/13.50          |  (is_a_theorem @ (equivalent @ X1 @ X0)))),
% 90.28/13.50      inference('s_sup-', [status(thm)], [zip_derived_cl4, zip_derived_cl0])).
% 90.28/13.50  thf(zip_derived_cl11, plain,
% 90.28/13.50      (![X0 : $i, X1 : $i, X2 : $i]:
% 90.28/13.50         (~ (is_a_theorem @ X2)
% 90.28/13.50          | ~ (is_a_theorem @ X0)
% 90.28/13.50          | ~ (is_a_theorem @ (equivalent @ X1 @ X0))
% 90.28/13.50          |  (is_a_theorem @ (equivalent @ X2 @ X1)))),
% 90.28/13.50      inference('s_sup-', [status(thm)], [zip_derived_cl8, zip_derived_cl5])).
% 90.28/13.50  thf(zip_derived_cl53, plain,
% 90.28/13.50      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i, X4 : $i]:
% 90.28/13.50         (~ (is_a_theorem @ X4)
% 90.28/13.50          | ~ (is_a_theorem @ X0)
% 90.28/13.50          |  (is_a_theorem @ 
% 90.28/13.50              (equivalent @ X4 @ 
% 90.28/13.50               (equivalent @ 
% 90.28/13.50                (equivalent @ (equivalent @ X2 @ (equivalent @ X3 @ X1)) @ 
% 90.28/13.50                 (equivalent @ X3 @ X2)) @ 
% 90.28/13.50                (equivalent @ X1 @ X0)))))),
% 90.28/13.50      inference('s_sup-', [status(thm)], [zip_derived_cl23, zip_derived_cl11])).
% 90.28/13.50  thf(zip_derived_cl0, plain,
% 90.28/13.50      (![X0 : $i, X1 : $i]:
% 90.28/13.50         (~ (is_a_theorem @ (equivalent @ X0 @ X1))
% 90.28/13.50          | ~ (is_a_theorem @ X0)
% 90.28/13.50          |  (is_a_theorem @ X1))),
% 90.28/13.50      inference('cnf', [status(esa)], [condensed_detachment])).
% 90.28/13.50  thf(zip_derived_cl631, plain,
% 90.28/13.50      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i, X4 : $i]:
% 90.28/13.50         (~ (is_a_theorem @ X0)
% 90.28/13.50          | ~ (is_a_theorem @ X4)
% 90.28/13.50          | ~ (is_a_theorem @ X4)
% 90.28/13.50          |  (is_a_theorem @ 
% 90.28/13.50              (equivalent @ 
% 90.28/13.50               (equivalent @ (equivalent @ X2 @ (equivalent @ X3 @ X1)) @ 
% 90.28/13.50                (equivalent @ X3 @ X2)) @ 
% 90.28/13.50               (equivalent @ X1 @ X0))))),
% 90.28/13.50      inference('s_sup-', [status(thm)], [zip_derived_cl53, zip_derived_cl0])).
% 90.28/13.50  thf(zip_derived_cl672, plain,
% 90.28/13.50      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i, X4 : $i]:
% 90.28/13.50         ( (is_a_theorem @ 
% 90.28/13.50            (equivalent @ 
% 90.28/13.50             (equivalent @ (equivalent @ X2 @ (equivalent @ X3 @ X1)) @ 
% 90.28/13.50              (equivalent @ X3 @ X2)) @ 
% 90.28/13.50             (equivalent @ X1 @ X0)))
% 90.28/13.50          | ~ (is_a_theorem @ X4)
% 90.28/13.50          | ~ (is_a_theorem @ X0))),
% 90.28/13.50      inference('simplify', [status(thm)], [zip_derived_cl631])).
% 90.28/13.50  thf(zip_derived_cl31994, plain,
% 90.28/13.50      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i]:
% 90.28/13.50         ( (is_a_theorem @ 
% 90.28/13.50            (equivalent @ 
% 90.28/13.50             (equivalent @ (equivalent @ X2 @ (equivalent @ X3 @ X1)) @ 
% 90.28/13.50              (equivalent @ X3 @ X2)) @ 
% 90.28/13.50             (equivalent @ X1 @ X0)))
% 90.28/13.50          | ~ (is_a_theorem @ X0))),
% 90.28/13.50      inference('condensation', [status(thm)], [zip_derived_cl672])).
% 90.28/13.50  thf(zip_derived_cl513, plain,
% 90.28/13.50      (![X0 : $i]:  (is_a_theorem @ (equivalent @ X0 @ X0))),
% 90.28/13.50      inference('s_sup+', [status(thm)], [zip_derived_cl51, zip_derived_cl23])).
% 90.28/13.50  thf(zip_derived_cl5, plain,
% 90.28/13.50      (![X0 : $i, X1 : $i, X2 : $i]:
% 90.28/13.50         (~ (is_a_theorem @ X2)
% 90.28/13.50          | ~ (is_a_theorem @ (equivalent @ X0 @ (equivalent @ X1 @ X2)))
% 90.28/13.50          |  (is_a_theorem @ (equivalent @ X1 @ X0)))),
% 90.28/13.50      inference('s_sup-', [status(thm)], [zip_derived_cl4, zip_derived_cl0])).
% 90.28/13.50  thf(zip_derived_cl542, plain,
% 90.28/13.50      (![X0 : $i, X1 : $i]:
% 90.28/13.50         (~ (is_a_theorem @ X0)
% 90.28/13.50          |  (is_a_theorem @ (equivalent @ X1 @ (equivalent @ X1 @ X0))))),
% 90.28/13.50      inference('s_sup-', [status(thm)], [zip_derived_cl513, zip_derived_cl5])).
% 90.28/13.50  thf(zip_derived_cl51, plain,
% 90.28/13.50      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i]:
% 90.28/13.50         (~ (is_a_theorem @ 
% 90.28/13.50             (equivalent @ 
% 90.28/13.50              (equivalent @ (equivalent @ X2 @ (equivalent @ X3 @ X1)) @ 
% 90.28/13.50               (equivalent @ X3 @ X2)) @ 
% 90.28/13.50              (equivalent @ X1 @ X0)))
% 90.28/13.50          |  (is_a_theorem @ X0))),
% 90.28/13.50      inference('s_sup-', [status(thm)], [zip_derived_cl23, zip_derived_cl0])).
% 90.28/13.50  thf(zip_derived_cl7, plain,
% 90.28/13.50      (![X0 : $i, X1 : $i, X2 : $i]:
% 90.28/13.50         (~ (is_a_theorem @ (equivalent @ X1 @ X0))
% 90.28/13.50          |  (is_a_theorem @ 
% 90.28/13.50              (equivalent @ (equivalent @ X0 @ (equivalent @ X1 @ X2)) @ X2)))),
% 90.28/13.50      inference('s_sup-', [status(thm)], [zip_derived_cl1, zip_derived_cl5])).
% 90.28/13.50  thf(zip_derived_cl511, plain,
% 90.28/13.50      (![X0 : $i, X1 : $i, X2 : $i]:
% 90.28/13.50         ( (is_a_theorem @ X0)
% 90.28/13.50          | ~ (is_a_theorem @ 
% 90.28/13.50               (equivalent @ X2 @ 
% 90.28/13.50                (equivalent @ (equivalent @ X1 @ X0) @ (equivalent @ X2 @ X1)))))),
% 90.28/13.50      inference('s_sup+', [status(thm)], [zip_derived_cl51, zip_derived_cl7])).
% 90.28/13.50  thf(zip_derived_cl4470, plain,
% 90.28/13.50      (![X0 : $i, X1 : $i]:
% 90.28/13.50         (~ (is_a_theorem @ (equivalent @ (equivalent @ X0 @ X1) @ X0))
% 90.28/13.50          |  (is_a_theorem @ X1))),
% 90.28/13.50      inference('s_sup-', [status(thm)], [zip_derived_cl542, zip_derived_cl511])).
% 90.28/13.50  thf(zip_derived_cl51, plain,
% 90.28/13.50      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i]:
% 90.28/13.50         (~ (is_a_theorem @ 
% 90.28/13.50             (equivalent @ 
% 90.28/13.50              (equivalent @ (equivalent @ X2 @ (equivalent @ X3 @ X1)) @ 
% 90.28/13.50               (equivalent @ X3 @ X2)) @ 
% 90.28/13.50              (equivalent @ X1 @ X0)))
% 90.28/13.50          |  (is_a_theorem @ X0))),
% 90.28/13.50      inference('s_sup-', [status(thm)], [zip_derived_cl23, zip_derived_cl0])).
% 90.28/13.50  thf(zip_derived_cl4, plain,
% 90.28/13.50      (![X0 : $i, X1 : $i, X2 : $i]:
% 90.28/13.50         (~ (is_a_theorem @ X2)
% 90.28/13.50          |  (is_a_theorem @ 
% 90.28/13.50              (equivalent @ (equivalent @ X0 @ (equivalent @ X1 @ X2)) @ 
% 90.28/13.50               (equivalent @ X1 @ X0))))),
% 90.28/13.50      inference('s_sup-', [status(thm)], [zip_derived_cl1, zip_derived_cl0])).
% 90.28/13.50  thf(zip_derived_cl516, plain,
% 90.28/13.50      (![X0 : $i, X1 : $i]:
% 90.28/13.50         ( (is_a_theorem @ (equivalent @ X1 @ (equivalent @ X0 @ X0)))
% 90.28/13.50          | ~ (is_a_theorem @ X1))),
% 90.28/13.50      inference('s_sup+', [status(thm)], [zip_derived_cl51, zip_derived_cl4])).
% 90.28/13.50  thf(zip_derived_cl4579, plain,
% 90.28/13.50      (![X0 : $i, X1 : $i]:
% 90.28/13.50         ( (is_a_theorem @ X1)
% 90.28/13.50          | ~ (is_a_theorem @ (equivalent @ (equivalent @ X0 @ X0) @ X1)))),
% 90.28/13.50      inference('s_sup+', [status(thm)],
% 90.28/13.50                [zip_derived_cl4470, zip_derived_cl516])).
% 90.28/13.50  thf(zip_derived_cl542, plain,
% 90.28/13.50      (![X0 : $i, X1 : $i]:
% 90.28/13.50         (~ (is_a_theorem @ X0)
% 90.28/13.50          |  (is_a_theorem @ (equivalent @ X1 @ (equivalent @ X1 @ X0))))),
% 90.28/13.50      inference('s_sup-', [status(thm)], [zip_derived_cl513, zip_derived_cl5])).
% 90.28/13.50  thf(zip_derived_cl4722, plain,
% 90.28/13.50      (![X0 : $i, X1 : $i]:
% 90.28/13.50         ( (is_a_theorem @ (equivalent @ (equivalent @ X1 @ X1) @ X0))
% 90.28/13.50          | ~ (is_a_theorem @ X0))),
% 90.28/13.50      inference('s_sup+', [status(thm)],
% 90.28/13.50                [zip_derived_cl4579, zip_derived_cl542])).
% 90.28/13.50  thf(zip_derived_cl511, plain,
% 90.28/13.50      (![X0 : $i, X1 : $i, X2 : $i]:
% 90.28/13.50         ( (is_a_theorem @ X0)
% 90.28/13.50          | ~ (is_a_theorem @ 
% 90.28/13.50               (equivalent @ X2 @ 
% 90.28/13.50                (equivalent @ (equivalent @ X1 @ X0) @ (equivalent @ X2 @ X1)))))),
% 90.28/13.50      inference('s_sup+', [status(thm)], [zip_derived_cl51, zip_derived_cl7])).
% 90.28/13.50  thf(zip_derived_cl5483, plain,
% 90.28/13.50      (![X0 : $i, X1 : $i, X2 : $i]:
% 90.28/13.50         (~ (is_a_theorem @ 
% 90.28/13.50             (equivalent @ (equivalent @ X0 @ X2) @ 
% 90.28/13.50              (equivalent @ (equivalent @ X1 @ X1) @ X0)))
% 90.28/13.50          |  (is_a_theorem @ X2))),
% 90.28/13.50      inference('s_sup-', [status(thm)],
% 90.28/13.50                [zip_derived_cl4722, zip_derived_cl511])).
% 90.28/13.50  thf(zip_derived_cl36843, plain,
% 90.28/13.50      (![X0 : $i, X1 : $i, X2 : $i]:
% 90.28/13.50         (~ (is_a_theorem @ 
% 90.28/13.50             (equivalent @ X2 @ (equivalent @ X1 @ (equivalent @ X0 @ X0))))
% 90.28/13.50          |  (is_a_theorem @ (equivalent @ X1 @ X2)))),
% 90.28/13.50      inference('s_sup-', [status(thm)],
% 90.28/13.50                [zip_derived_cl31994, zip_derived_cl5483])).
% 90.28/13.50  thf(zip_derived_cl527, plain,
% 90.28/13.50      (![X0 : $i, X1 : $i]:
% 90.28/13.50          (is_a_theorem @ 
% 90.28/13.50           (equivalent @ (equivalent @ X0 @ (equivalent @ X0 @ X1)) @ X1))),
% 90.28/13.50      inference('s_sup-', [status(thm)], [zip_derived_cl513, zip_derived_cl7])).
% 90.28/13.50  thf(zip_derived_cl5, plain,
% 90.28/13.50      (![X0 : $i, X1 : $i, X2 : $i]:
% 90.28/13.50         (~ (is_a_theorem @ X2)
% 90.28/13.50          | ~ (is_a_theorem @ (equivalent @ X0 @ (equivalent @ X1 @ X2)))
% 90.28/13.50          |  (is_a_theorem @ (equivalent @ X1 @ X0)))),
% 90.28/13.50      inference('s_sup-', [status(thm)], [zip_derived_cl4, zip_derived_cl0])).
% 90.28/13.50  thf(zip_derived_cl1257, plain,
% 90.28/13.50      (![X0 : $i, X1 : $i, X2 : $i]:
% 90.28/13.50         (~ (is_a_theorem @ X0)
% 90.28/13.50          |  (is_a_theorem @ 
% 90.28/13.50              (equivalent @ X1 @ 
% 90.28/13.50               (equivalent @ X2 @ (equivalent @ X2 @ (equivalent @ X1 @ X0))))))),
% 90.28/13.50      inference('s_sup-', [status(thm)], [zip_derived_cl527, zip_derived_cl5])).
% 90.28/13.50  thf(zip_derived_cl40619, plain,
% 90.28/13.50      (![X0 : $i, X1 : $i]:
% 90.28/13.50         ( (is_a_theorem @ (equivalent @ (equivalent @ X1 @ X0) @ X1))
% 90.28/13.50          | ~ (is_a_theorem @ X0))),
% 90.28/13.50      inference('s_sup+', [status(thm)],
% 90.28/13.50                [zip_derived_cl36843, zip_derived_cl1257])).
% 90.28/13.50  thf(zip_derived_cl23, plain,
% 90.28/13.50      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i]:
% 90.28/13.50          (is_a_theorem @ 
% 90.28/13.50           (equivalent @ 
% 90.28/13.50            (equivalent @ 
% 90.28/13.50             (equivalent @ (equivalent @ X0 @ (equivalent @ X1 @ X2)) @ 
% 90.28/13.50              (equivalent @ X1 @ X0)) @ 
% 90.28/13.50             (equivalent @ X2 @ X3)) @ 
% 90.28/13.50            X3))),
% 90.28/13.50      inference('s_sup-', [status(thm)], [zip_derived_cl1, zip_derived_cl7])).
% 90.28/13.50  thf(zip_derived_cl7, plain,
% 90.28/13.50      (![X0 : $i, X1 : $i, X2 : $i]:
% 90.28/13.50         (~ (is_a_theorem @ (equivalent @ X1 @ X0))
% 90.28/13.50          |  (is_a_theorem @ 
% 90.28/13.50              (equivalent @ (equivalent @ X0 @ (equivalent @ X1 @ X2)) @ X2)))),
% 90.28/13.50      inference('s_sup-', [status(thm)], [zip_derived_cl1, zip_derived_cl5])).
% 90.28/13.50  thf(zip_derived_cl52, plain,
% 90.28/13.50      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i, X4 : $i]:
% 90.28/13.50          (is_a_theorem @ 
% 90.28/13.50           (equivalent @ 
% 90.28/13.50            (equivalent @ X0 @ 
% 90.28/13.50             (equivalent @ 
% 90.28/13.50              (equivalent @ 
% 90.28/13.50               (equivalent @ (equivalent @ X2 @ (equivalent @ X3 @ X1)) @ 
% 90.28/13.50                (equivalent @ X3 @ X2)) @ 
% 90.28/13.50               (equivalent @ X1 @ X0)) @ 
% 90.28/13.50              X4)) @ 
% 90.28/13.50            X4))),
% 90.28/13.50      inference('s_sup-', [status(thm)], [zip_derived_cl23, zip_derived_cl7])).
% 90.28/13.50  thf(zip_derived_cl513, plain,
% 90.28/13.50      (![X0 : $i]:  (is_a_theorem @ (equivalent @ X0 @ X0))),
% 90.28/13.50      inference('s_sup+', [status(thm)], [zip_derived_cl51, zip_derived_cl23])).
% 90.28/13.50  thf(zip_derived_cl4, plain,
% 90.28/13.50      (![X0 : $i, X1 : $i, X2 : $i]:
% 90.28/13.50         (~ (is_a_theorem @ X2)
% 90.28/13.50          |  (is_a_theorem @ 
% 90.28/13.50              (equivalent @ (equivalent @ X0 @ (equivalent @ X1 @ X2)) @ 
% 90.28/13.50               (equivalent @ X1 @ X0))))),
% 90.28/13.50      inference('s_sup-', [status(thm)], [zip_derived_cl1, zip_derived_cl0])).
% 90.28/13.50  thf(zip_derived_cl1, plain,
% 90.28/13.50      (![X0 : $i, X1 : $i, X2 : $i]:
% 90.28/13.50          (is_a_theorem @ 
% 90.28/13.50           (equivalent @ X0 @ 
% 90.28/13.50            (equivalent @ (equivalent @ X1 @ (equivalent @ X2 @ X0)) @ 
% 90.28/13.50             (equivalent @ X2 @ X1))))),
% 90.28/13.50      inference('cnf', [status(esa)], [xgk])).
% 90.28/13.50  thf(zip_derived_cl8, plain,
% 90.28/13.50      (![X0 : $i, X1 : $i, X2 : $i]:
% 90.28/13.50         (~ (is_a_theorem @ X2)
% 90.28/13.50          | ~ (is_a_theorem @ X0)
% 90.28/13.50          |  (is_a_theorem @ 
% 90.28/13.50              (equivalent @ X1 @ (equivalent @ X0 @ (equivalent @ X1 @ X2)))))),
% 90.28/13.50      inference('s_sup-', [status(thm)], [zip_derived_cl4, zip_derived_cl5])).
% 90.28/13.50  thf(zip_derived_cl4, plain,
% 90.28/13.50      (![X0 : $i, X1 : $i, X2 : $i]:
% 90.28/13.50         (~ (is_a_theorem @ X2)
% 90.28/13.50          |  (is_a_theorem @ 
% 90.28/13.50              (equivalent @ (equivalent @ X0 @ (equivalent @ X1 @ X2)) @ 
% 90.28/13.50               (equivalent @ X1 @ X0))))),
% 90.28/13.50      inference('s_sup-', [status(thm)], [zip_derived_cl1, zip_derived_cl0])).
% 90.28/13.50  thf(zip_derived_cl29, plain,
% 90.28/13.50      (![X0 : $i, X1 : $i, X2 : $i]:
% 90.28/13.50         (~ (is_a_theorem @ X0)
% 90.28/13.50          | ~ (is_a_theorem @ X1)
% 90.28/13.50          |  (is_a_theorem @ 
% 90.28/13.50              (equivalent @ (equivalent @ X0 @ (equivalent @ X1 @ X2)) @ X2)))),
% 90.28/13.50      inference('s_sup-', [status(thm)], [zip_derived_cl27, zip_derived_cl7])).
% 90.28/13.50  thf(prove_pyo, conjecture,
% 90.28/13.50    (is_a_theorem @
% 90.28/13.50     ( equivalent @
% 90.28/13.50       ( equivalent @ ( equivalent @ a @ ( equivalent @ b @ c ) ) @ c ) @ 
% 90.28/13.50       ( equivalent @ b @ a ) ))).
% 90.28/13.50  thf(zf_stmt_0, negated_conjecture,
% 90.28/13.50    (~( is_a_theorem @
% 90.28/13.50        ( equivalent @
% 90.28/13.50          ( equivalent @ ( equivalent @ a @ ( equivalent @ b @ c ) ) @ c ) @ 
% 90.28/13.50          ( equivalent @ b @ a ) ) )),
% 90.28/13.50    inference('cnf.neg', [status(esa)], [prove_pyo])).
% 90.28/13.50  thf(zip_derived_cl2, plain,
% 90.28/13.50      (~ (is_a_theorem @ 
% 90.28/13.50          (equivalent @ 
% 90.28/13.50           (equivalent @ (equivalent @ a @ (equivalent @ b @ c)) @ c) @ 
% 90.28/13.50           (equivalent @ b @ a)))),
% 90.28/13.50      inference('cnf', [status(esa)], [zf_stmt_0])).
% 90.28/13.50  thf(zip_derived_cl0, plain,
% 90.28/13.50      (![X0 : $i, X1 : $i]:
% 90.28/13.50         (~ (is_a_theorem @ (equivalent @ X0 @ X1))
% 90.28/13.50          | ~ (is_a_theorem @ X0)
% 90.28/13.50          |  (is_a_theorem @ X1))),
% 90.28/13.50      inference('cnf', [status(esa)], [condensed_detachment])).
% 90.28/13.50  thf(zip_derived_cl3, plain,
% 90.28/13.50      (![X0 : $i]:
% 90.28/13.50         (~ (is_a_theorem @ 
% 90.28/13.50             (equivalent @ X0 @ 
% 90.28/13.50              (equivalent @ 
% 90.28/13.50               (equivalent @ (equivalent @ a @ (equivalent @ b @ c)) @ c) @ 
% 90.28/13.50               (equivalent @ b @ a))))
% 90.28/13.50          | ~ (is_a_theorem @ X0))),
% 90.28/13.50      inference('s_sup+', [status(thm)], [zip_derived_cl2, zip_derived_cl0])).
% 90.28/13.50  thf(zip_derived_cl104, plain,
% 90.28/13.50      (![X0 : $i, X1 : $i]:
% 90.28/13.50         (~ (is_a_theorem @ X0)
% 90.28/13.50          | ~ (is_a_theorem @ X1)
% 90.28/13.50          | ~ (is_a_theorem @ 
% 90.28/13.50               (equivalent @ X1 @ 
% 90.28/13.50                (equivalent @ X0 @ 
% 90.28/13.50                 (equivalent @ 
% 90.28/13.50                  (equivalent @ (equivalent @ a @ (equivalent @ b @ c)) @ c) @ 
% 90.28/13.50                  (equivalent @ b @ a))))))),
% 90.28/13.50      inference('s_sup-', [status(thm)], [zip_derived_cl29, zip_derived_cl3])).
% 90.28/13.50  thf(zip_derived_cl167, plain,
% 90.28/13.50      (![X0 : $i, X1 : $i]:
% 90.28/13.50         (~ (is_a_theorem @ X1)
% 90.28/13.50          | ~ (is_a_theorem @ X0)
% 90.28/13.50          | ~ (is_a_theorem @ 
% 90.28/13.50               (equivalent @ 
% 90.28/13.50                (equivalent @ 
% 90.28/13.50                 (equivalent @ (equivalent @ a @ (equivalent @ b @ c)) @ c) @ 
% 90.28/13.50                 (equivalent @ b @ a)) @ 
% 90.28/13.50                (equivalent @ X0 @ X1))))),
% 90.28/13.50      inference('s_sup-', [status(thm)], [zip_derived_cl4, zip_derived_cl104])).
% 90.28/13.50  thf(zip_derived_cl300, plain,
% 90.28/13.50      (![X0 : $i, X1 : $i]:
% 90.28/13.50         (~ (is_a_theorem @ X1)
% 90.28/13.50          | ~ (is_a_theorem @ X0)
% 90.28/13.50          | ~ (is_a_theorem @ 
% 90.28/13.50               (equivalent @ 
% 90.28/13.50                (equivalent @ 
% 90.28/13.50                 (equivalent @ (equivalent @ a @ (equivalent @ b @ c)) @ c) @ 
% 90.28/13.50                 (equivalent @ b @ a)) @ 
% 90.28/13.50                X0))
% 90.28/13.50          | ~ (is_a_theorem @ X1))),
% 90.28/13.50      inference('s_sup-', [status(thm)], [zip_derived_cl8, zip_derived_cl167])).
% 90.28/13.50  thf(zip_derived_cl303, plain,
% 90.28/13.50      (![X0 : $i, X1 : $i]:
% 90.28/13.50         (~ (is_a_theorem @ 
% 90.28/13.50             (equivalent @ 
% 90.28/13.50              (equivalent @ 
% 90.28/13.50               (equivalent @ (equivalent @ a @ (equivalent @ b @ c)) @ c) @ 
% 90.28/13.50               (equivalent @ b @ a)) @ 
% 90.28/13.50              X0))
% 90.28/13.50          | ~ (is_a_theorem @ X0)
% 90.28/13.50          | ~ (is_a_theorem @ X1))),
% 90.28/13.50      inference('simplify', [status(thm)], [zip_derived_cl300])).
% 90.28/13.50  thf(zip_derived_cl329, plain,
% 90.28/13.50      (![X0 : $i]:
% 90.28/13.50         (~ (is_a_theorem @ 
% 90.28/13.50             (equivalent @ 
% 90.28/13.50              (equivalent @ 
% 90.28/13.50               (equivalent @ (equivalent @ a @ (equivalent @ b @ c)) @ c) @ 
% 90.28/13.50               (equivalent @ b @ a)) @ 
% 90.28/13.50              X0))
% 90.28/13.50          | ~ (is_a_theorem @ X0))),
% 90.28/13.50      inference('condensation', [status(thm)], [zip_derived_cl303])).
% 90.28/13.50  thf(zip_derived_cl331, plain,
% 90.28/13.50      (![X0 : $i, X1 : $i]:
% 90.28/13.50         ~ (is_a_theorem @ 
% 90.28/13.50            (equivalent @ 
% 90.28/13.50             (equivalent @ X0 @ 
% 90.28/13.50              (equivalent @ X1 @ 
% 90.28/13.50               (equivalent @ 
% 90.28/13.50                (equivalent @ (equivalent @ a @ (equivalent @ b @ c)) @ c) @ 
% 90.28/13.50                (equivalent @ b @ a)))) @ 
% 90.28/13.50             (equivalent @ X1 @ X0)))),
% 90.28/13.50      inference('s_sup-', [status(thm)], [zip_derived_cl1, zip_derived_cl329])).
% 90.28/13.50  thf(zip_derived_cl11, plain,
% 90.28/13.50      (![X0 : $i, X1 : $i, X2 : $i]:
% 90.28/13.50         (~ (is_a_theorem @ X2)
% 90.28/13.50          | ~ (is_a_theorem @ X0)
% 90.28/13.50          | ~ (is_a_theorem @ (equivalent @ X1 @ X0))
% 90.28/13.50          |  (is_a_theorem @ (equivalent @ X2 @ X1)))),
% 90.28/13.50      inference('s_sup-', [status(thm)], [zip_derived_cl8, zip_derived_cl5])).
% 90.28/13.50  thf(zip_derived_cl352, plain,
% 90.28/13.50      (![X0 : $i, X1 : $i, X2 : $i]:
% 90.28/13.50         (~ (is_a_theorem @ 
% 90.28/13.50             (equivalent @ X0 @ 
% 90.28/13.50              (equivalent @ X1 @ 
% 90.28/13.50               (equivalent @ 
% 90.28/13.50                (equivalent @ (equivalent @ a @ (equivalent @ b @ c)) @ c) @ 
% 90.28/13.50                (equivalent @ b @ a)))))
% 90.28/13.50          | ~ (is_a_theorem @ X2)
% 90.28/13.50          | ~ (is_a_theorem @ (equivalent @ (equivalent @ X1 @ X0) @ X2)))),
% 90.28/13.50      inference('s_sup+', [status(thm)], [zip_derived_cl331, zip_derived_cl11])).
% 90.28/13.50  thf(zip_derived_cl411, plain,
% 90.28/13.50      (![X0 : $i, X1 : $i, X2 : $i]:
% 90.28/13.50         (~ (is_a_theorem @ X2)
% 90.28/13.50          | ~ (is_a_theorem @ 
% 90.28/13.50               (equivalent @ (equivalent @ X1 @ X2) @ 
% 90.28/13.50                (equivalent @ X0 @ 
% 90.28/13.50                 (equivalent @ 
% 90.28/13.50                  (equivalent @ (equivalent @ a @ (equivalent @ b @ c)) @ c) @ 
% 90.28/13.50                  (equivalent @ b @ a)))))
% 90.28/13.50          | ~ (is_a_theorem @ (equivalent @ X1 @ X0)))),
% 90.28/13.50      inference('s_sup-', [status(thm)], [zip_derived_cl4, zip_derived_cl352])).
% 90.28/13.50  thf(zip_derived_cl537, plain,
% 90.28/13.50      (![X0 : $i, X1 : $i]:
% 90.28/13.50         (~ (is_a_theorem @ X1)
% 90.28/13.50          | ~ (is_a_theorem @ 
% 90.28/13.50               (equivalent @ (equivalent @ X0 @ X1) @ 
% 90.28/13.50                (equivalent @ X0 @ 
% 90.28/13.50                 (equivalent @ 
% 90.28/13.50                  (equivalent @ (equivalent @ a @ (equivalent @ b @ c)) @ c) @ 
% 90.28/13.50                  (equivalent @ b @ a))))))),
% 90.28/13.50      inference('s_sup-', [status(thm)], [zip_derived_cl513, zip_derived_cl411])).
% 90.28/13.50  thf(zip_derived_cl816, plain,
% 90.28/13.50      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i]:
% 90.28/13.50         ~ (is_a_theorem @ 
% 90.28/13.50            (equivalent @ 
% 90.28/13.50             (equivalent @ 
% 90.28/13.50              (equivalent @ (equivalent @ X2 @ (equivalent @ X3 @ X1)) @ 
% 90.28/13.50               (equivalent @ X3 @ X2)) @ 
% 90.28/13.50              (equivalent @ X1 @ X0)) @ 
% 90.28/13.50             (equivalent @ X0 @ 
% 90.28/13.50              (equivalent @ 
% 90.28/13.50               (equivalent @ (equivalent @ a @ (equivalent @ b @ c)) @ c) @ 
% 90.28/13.50               (equivalent @ b @ a)))))),
% 90.28/13.50      inference('s_sup-', [status(thm)], [zip_derived_cl52, zip_derived_cl537])).
% 90.28/13.50  thf(zip_derived_cl43489, plain,
% 90.28/13.50      (![X0 : $i]:
% 90.28/13.50         ~ (is_a_theorem @ 
% 90.28/13.50            (equivalent @ X0 @ 
% 90.28/13.50             (equivalent @ (equivalent @ b @ a) @ 
% 90.28/13.50              (equivalent @ 
% 90.28/13.50               (equivalent @ (equivalent @ a @ (equivalent @ b @ c)) @ c) @ X0))))),
% 90.28/13.50      inference('s_sup-', [status(thm)],
% 90.28/13.50                [zip_derived_cl40619, zip_derived_cl816])).
% 90.28/13.50  thf(zip_derived_cl31994, plain,
% 90.28/13.50      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i]:
% 90.28/13.50         ( (is_a_theorem @ 
% 90.28/13.50            (equivalent @ 
% 90.28/13.50             (equivalent @ (equivalent @ X2 @ (equivalent @ X3 @ X1)) @ 
% 90.28/13.50              (equivalent @ X3 @ X2)) @ 
% 90.28/13.50             (equivalent @ X1 @ X0)))
% 90.28/13.50          | ~ (is_a_theorem @ X0))),
% 90.28/13.50      inference('condensation', [status(thm)], [zip_derived_cl672])).
% 90.28/13.50  thf(zip_derived_cl43591, plain,
% 90.28/13.50      (![X0 : $i, X1 : $i]:
% 90.28/13.50         ~ (is_a_theorem @ 
% 90.28/13.50            (equivalent @ 
% 90.28/13.50             (equivalent @ (equivalent @ a @ (equivalent @ b @ c)) @ c) @ 
% 90.28/13.50             (equivalent @ 
% 90.28/13.50              (equivalent @ X0 @ (equivalent @ X1 @ (equivalent @ b @ a))) @ 
% 90.28/13.50              (equivalent @ X1 @ X0))))),
% 90.28/13.50      inference('s_sup+', [status(thm)],
% 90.28/13.50                [zip_derived_cl43489, zip_derived_cl31994])).
% 90.28/13.50  thf(zip_derived_cl47164, plain,
% 90.28/13.50      (~ (is_a_theorem @ 
% 90.28/13.50          (equivalent @ c @ 
% 90.28/13.50           (equivalent @ (equivalent @ a @ (equivalent @ b @ c)) @ 
% 90.28/13.50            (equivalent @ b @ a))))),
% 90.28/13.50      inference('s_sup-', [status(thm)],
% 90.28/13.50                [zip_derived_cl23863, zip_derived_cl43591])).
% 90.28/13.50  thf(zip_derived_cl1, plain,
% 90.28/13.50      (![X0 : $i, X1 : $i, X2 : $i]:
% 90.28/13.50          (is_a_theorem @ 
% 90.28/13.50           (equivalent @ X0 @ 
% 90.28/13.50            (equivalent @ (equivalent @ X1 @ (equivalent @ X2 @ X0)) @ 
% 90.28/13.50             (equivalent @ X2 @ X1))))),
% 90.28/13.50      inference('cnf', [status(esa)], [xgk])).
% 90.28/13.50  thf(zip_derived_cl47174, plain, ($false),
% 90.28/13.50      inference('demod', [status(thm)], [zip_derived_cl47164, zip_derived_cl1])).
% 90.28/13.50  
% 90.28/13.50  % SZS output end Refutation
% 90.28/13.50  
% 90.28/13.50  
% 90.28/13.50  % Terminating...
% 90.94/13.54  % Runner terminated.
% 90.94/13.56  % Zipperpin 1.5 exiting
%------------------------------------------------------------------------------