↑ Up

Zipperpin---2.1.9999.UNS-Ref.s

View TPTP
Problem
Process solution in
SystemOnTSTP
Download .tgz
%------------------------------------------------------------------------------
% File     : Zipperpin---2.1.9999
% Problem  : LCL195-3 : TPTP v9.3.1. Released v2.3.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : python3 /export/starexec/sandbox/solver/bin/portfolio.lams.parallel.py %s %d /export/starexec/sandbox/tmp/tmp.nKcfod5gR3 true

% Computer : n008.cluster.edu
% Model    : x86_64 x86_64
% CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 2.10GHz
% Memory   : 8046.5625MB
% OS       : Linux 6.8.0-71-generic
% CPULimit : 300s
% WCLimit  : 300s
% DateTime : Mon Sep  7 01:35:25 PM UTC 2026

% Result   : Unsatisfiable 159.45s 23.66s
% Output   : Refutation 159.45s
% Verified : 
% SZS Type : -

% Comments : 
%------------------------------------------------------------------------------
%----WARNING: Could not form TPTP format derivation
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.03  % Problem  : LCL195-3 : TPTP v9.3.1. Released v2.3.0.
% 0.00/0.05  % Command  : python3 /export/starexec/sandbox/solver/bin/portfolio.lams.parallel.py %s %d /export/starexec/sandbox/tmp/tmp.nKcfod5gR3 true
% 0.12/0.37  % Computer : n008.cluster.edu
% 0.12/0.37  % Model    : x86_64 x86_64
% 0.12/0.37  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.12/0.37  % Memory   : 8046.5625MB
% 0.12/0.37  % OS       : Linux 6.8.0-71-generic
% 0.12/0.37  % CPULimit : 300
% 0.12/0.37  % WCLimit  : 300
% 0.12/0.37  % DateTime : Sat Sep  5 17:07:23 UTC 2026
% 0.12/0.38  % CPUTime  : 
% 0.12/0.38  % Running portfolio for 300 s
% 0.12/0.38  % File         : /export/starexec/sandbox/benchmark/theBenchmark.p
% 0.12/0.38  % Number of cores: 8
% 0.12/0.38  % Python version: Python 3.12.3
% 0.12/0.39  % Running in FO mode
% 0.45/0.67  % Total configuration time : 435
% 0.45/0.67  % Estimated wc time : 1092
% 0.45/0.67  % Estimated cpu time (7 cpus) : 156.0
% 0.49/0.74  % /export/starexec/sandbox/solver/bin/fo/fo6_bce.sh running for 75s
% 0.49/0.81  % /export/starexec/sandbox/solver/bin/fo/fo3_bce.sh running for 75s
% 0.49/0.81  % /export/starexec/sandbox/solver/bin/fo/fo1_av.sh running for 75s
% 0.49/0.81  % /export/starexec/sandbox/solver/bin/fo/fo13.sh running for 50s
% 0.49/0.81  % /export/starexec/sandbox/solver/bin/fo/fo5.sh running for 50s
% 0.49/0.81  % /export/starexec/sandbox/solver/bin/fo/fo7.sh running for 63s
% 0.49/0.81  % /export/starexec/sandbox/solver/bin/fo/fo4.sh running for 50s
% 159.45/23.66  % Solved by fo/fo6_bce.sh.
% 159.45/23.66  % BCE start: 9
% 159.45/23.66  % BCE eliminated: 0
% 159.45/23.66  % PE start: 9
% 159.45/23.66  logic: eq
% 159.45/23.66  % PE eliminated: 1
% 159.45/23.66  % done 3231 iterations in 22.879s
% 159.45/23.66  % SZS status Theorem for '/export/starexec/sandbox/benchmark/theBenchmark.p'
% 159.45/23.66  % SZS output start Refutation
% 159.45/23.66  thf(p_type, type, p: $i).
% 159.45/23.66  thf(axiom_type, type, axiom: $i > $o).
% 159.45/23.66  thf(implies_type, type, implies: $i > $i > $i).
% 159.45/23.66  thf(q_type, type, q: $i).
% 159.45/23.66  thf(or_type, type, or: $i > $i > $i).
% 159.45/23.66  thf(r_type, type, r: $i).
% 159.45/23.66  thf(theorem_type, type, theorem: $i > $o).
% 159.45/23.66  thf(not_type, type, not: $i > $i).
% 159.45/23.66  thf(prove_this, conjecture,
% 159.45/23.66    (theorem @
% 159.45/23.66     ( implies @
% 159.45/23.66       ( implies @ q @ r ) @ ( implies @ ( or @ q @ p ) @ ( or @ r @ p ) ) ))).
% 159.45/23.66  thf(zf_stmt_0, negated_conjecture,
% 159.45/23.66    (~( theorem @
% 159.45/23.66        ( implies @
% 159.45/23.66          ( implies @ q @ r ) @ ( implies @ ( or @ q @ p ) @ ( or @ r @ p ) ) ) )),
% 159.45/23.66    inference('cnf.neg', [status(esa)], [prove_this])).
% 159.45/23.66  thf(zip_derived_cl8, plain,
% 159.45/23.66      (~ (theorem @ 
% 159.45/23.66          (implies @ (implies @ q @ r) @ 
% 159.45/23.66           (implies @ (or @ q @ p) @ (or @ r @ p))))),
% 159.45/23.66      inference('cnf', [status(esa)], [zf_stmt_0])).
% 159.45/23.66  thf(axiom_1_6, axiom,
% 159.45/23.66    (axiom @
% 159.45/23.66     ( implies @
% 159.45/23.66       ( implies @ A @ B ) @ ( implies @ ( or @ C @ A ) @ ( or @ C @ B ) ) ))).
% 159.45/23.66  thf(zip_derived_cl4, plain,
% 159.45/23.66      (![X0 : $i, X1 : $i, X2 : $i]:
% 159.45/23.66          (axiom @ 
% 159.45/23.66           (implies @ (implies @ X0 @ X1) @ 
% 159.45/23.66            (implies @ (or @ X2 @ X0) @ (or @ X2 @ X1))))),
% 159.45/23.66      inference('cnf', [status(esa)], [axiom_1_6])).
% 159.45/23.66  thf(rule_1, axiom, (( theorem @ X ) | ( ~( axiom @ X ) ))).
% 159.45/23.66  thf(zip_derived_cl6, plain, (![X0 : $i]: ( (theorem @ X0) | ~ (axiom @ X0))),
% 159.45/23.66      inference('cnf', [status(esa)], [rule_1])).
% 159.45/23.66  thf(zip_derived_cl35, plain,
% 159.45/23.66      (![X0 : $i, X1 : $i, X2 : $i]:
% 159.45/23.66          (theorem @ 
% 159.45/23.66           (implies @ (implies @ X2 @ X0) @ 
% 159.45/23.66            (implies @ (or @ X1 @ X2) @ (or @ X1 @ X0))))),
% 159.45/23.66      inference('dp-resolution', [status(thm)],
% 159.45/23.66                [zip_derived_cl4, zip_derived_cl6])).
% 159.45/23.66  thf(axiom_1_4, axiom,
% 159.45/23.66    (axiom @ ( implies @ ( or @ A @ B ) @ ( or @ B @ A ) ))).
% 159.45/23.66  thf(zip_derived_cl2, plain,
% 159.45/23.66      (![X0 : $i, X1 : $i]:
% 159.45/23.66          (axiom @ (implies @ (or @ X0 @ X1) @ (or @ X1 @ X0)))),
% 159.45/23.66      inference('cnf', [status(esa)], [axiom_1_4])).
% 159.45/23.66  thf(zip_derived_cl6, plain, (![X0 : $i]: ( (theorem @ X0) | ~ (axiom @ X0))),
% 159.45/23.66      inference('cnf', [status(esa)], [rule_1])).
% 159.45/23.66  thf(zip_derived_cl33, plain,
% 159.45/23.66      (![X0 : $i, X1 : $i]:
% 159.45/23.66          (theorem @ (implies @ (or @ X0 @ X1) @ (or @ X1 @ X0)))),
% 159.45/23.66      inference('dp-resolution', [status(thm)],
% 159.45/23.66                [zip_derived_cl2, zip_derived_cl6])).
% 159.45/23.66  thf(implies_definition, axiom,
% 159.45/23.66    (( implies @ X @ Y ) = ( or @ ( not @ X ) @ Y ))).
% 159.45/23.66  thf(zip_derived_cl5, plain,
% 159.45/23.66      (![X0 : $i, X1 : $i]: ((implies @ X0 @ X1) = (or @ (not @ X0) @ X1))),
% 159.45/23.66      inference('cnf', [status(esa)], [implies_definition])).
% 159.45/23.66  thf(zip_derived_cl35, plain,
% 159.45/23.66      (![X0 : $i, X1 : $i, X2 : $i]:
% 159.45/23.66          (theorem @ 
% 159.45/23.66           (implies @ (implies @ X2 @ X0) @ 
% 159.45/23.66            (implies @ (or @ X1 @ X2) @ (or @ X1 @ X0))))),
% 159.45/23.66      inference('dp-resolution', [status(thm)],
% 159.45/23.66                [zip_derived_cl4, zip_derived_cl6])).
% 159.45/23.66  thf(rule_2, axiom,
% 159.45/23.66    (( theorem @ X ) | ( ~( theorem @ ( implies @ Y @ X ) ) ) | 
% 159.45/23.66     ( ~( theorem @ Y ) ))).
% 159.45/23.66  thf(zip_derived_cl7, plain,
% 159.45/23.66      (![X0 : $i, X1 : $i]:
% 159.45/23.66         ( (theorem @ X0)
% 159.45/23.66          | ~ (theorem @ (implies @ X1 @ X0))
% 159.45/23.66          | ~ (theorem @ X1))),
% 159.45/23.66      inference('cnf', [status(esa)], [rule_2])).
% 159.45/23.66  thf(zip_derived_cl48, plain,
% 159.45/23.66      (![X0 : $i, X1 : $i, X2 : $i]:
% 159.45/23.66         ( (theorem @ (implies @ (or @ X1 @ X2) @ (or @ X1 @ X0)))
% 159.45/23.66          | ~ (theorem @ (implies @ X2 @ X0)))),
% 159.45/23.66      inference('s_sup-', [status(thm)], [zip_derived_cl35, zip_derived_cl7])).
% 159.45/23.66  thf(zip_derived_cl89, plain,
% 159.45/23.66      (![X0 : $i, X1 : $i, X2 : $i]:
% 159.45/23.66         ( (theorem @ (implies @ (or @ (not @ X1) @ X2) @ (implies @ X1 @ X0)))
% 159.45/23.66          | ~ (theorem @ (implies @ X2 @ X0)))),
% 159.45/23.66      inference('s_sup+', [status(thm)], [zip_derived_cl5, zip_derived_cl48])).
% 159.45/23.66  thf(zip_derived_cl5, plain,
% 159.45/23.66      (![X0 : $i, X1 : $i]: ((implies @ X0 @ X1) = (or @ (not @ X0) @ X1))),
% 159.45/23.66      inference('cnf', [status(esa)], [implies_definition])).
% 159.45/23.66  thf(zip_derived_cl91, plain,
% 159.45/23.66      (![X0 : $i, X1 : $i, X2 : $i]:
% 159.45/23.66         ( (theorem @ (implies @ (implies @ X1 @ X2) @ (implies @ X1 @ X0)))
% 159.45/23.66          | ~ (theorem @ (implies @ X2 @ X0)))),
% 159.45/23.66      inference('demod', [status(thm)], [zip_derived_cl89, zip_derived_cl5])).
% 159.45/23.66  thf(zip_derived_cl91, plain,
% 159.45/23.66      (![X0 : $i, X1 : $i, X2 : $i]:
% 159.45/23.66         ( (theorem @ (implies @ (implies @ X1 @ X2) @ (implies @ X1 @ X0)))
% 159.45/23.66          | ~ (theorem @ (implies @ X2 @ X0)))),
% 159.45/23.66      inference('demod', [status(thm)], [zip_derived_cl89, zip_derived_cl5])).
% 159.45/23.66  thf(zip_derived_cl7, plain,
% 159.45/23.66      (![X0 : $i, X1 : $i]:
% 159.45/23.66         ( (theorem @ X0)
% 159.45/23.66          | ~ (theorem @ (implies @ X1 @ X0))
% 159.45/23.66          | ~ (theorem @ X1))),
% 159.45/23.66      inference('cnf', [status(esa)], [rule_2])).
% 159.45/23.66  thf(zip_derived_cl98, plain,
% 159.45/23.66      (![X0 : $i, X1 : $i, X2 : $i]:
% 159.45/23.66         (~ (theorem @ (implies @ X2 @ X0))
% 159.45/23.66          |  (theorem @ (implies @ X1 @ X0))
% 159.45/23.66          | ~ (theorem @ (implies @ X1 @ X2)))),
% 159.45/23.66      inference('s_sup-', [status(thm)], [zip_derived_cl91, zip_derived_cl7])).
% 159.45/23.66  thf(zip_derived_cl255, plain,
% 159.45/23.66      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i]:
% 159.45/23.66         (~ (theorem @ (implies @ X2 @ X0))
% 159.45/23.66          |  (theorem @ (implies @ X3 @ (implies @ X1 @ X0)))
% 159.45/23.66          | ~ (theorem @ (implies @ X3 @ (implies @ X1 @ X2))))),
% 159.45/23.66      inference('s_sup-', [status(thm)], [zip_derived_cl91, zip_derived_cl98])).
% 159.45/23.66  thf(zip_derived_cl1491, plain,
% 159.45/23.66      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i]:
% 159.45/23.66         ( (theorem @ (implies @ X3 @ (implies @ X2 @ (or @ X1 @ X0))))
% 159.45/23.66          | ~ (theorem @ (implies @ X3 @ (implies @ X2 @ (or @ X0 @ X1)))))),
% 159.45/23.66      inference('s_sup-', [status(thm)], [zip_derived_cl33, zip_derived_cl255])).
% 159.45/23.66  thf(zip_derived_cl1558, plain,
% 159.45/23.66      (![X0 : $i, X1 : $i, X2 : $i]:
% 159.45/23.66          (theorem @ 
% 159.45/23.66           (implies @ (implies @ X2 @ X0) @ 
% 159.45/23.66            (implies @ (or @ X1 @ X2) @ (or @ X0 @ X1))))),
% 159.45/23.66      inference('s_sup-', [status(thm)], [zip_derived_cl35, zip_derived_cl1491])).
% 159.45/23.66  thf(zip_derived_cl33, plain,
% 159.45/23.66      (![X0 : $i, X1 : $i]:
% 159.45/23.66          (theorem @ (implies @ (or @ X0 @ X1) @ (or @ X1 @ X0)))),
% 159.45/23.66      inference('dp-resolution', [status(thm)],
% 159.45/23.66                [zip_derived_cl2, zip_derived_cl6])).
% 159.45/23.66  thf(zip_derived_cl5, plain,
% 159.45/23.66      (![X0 : $i, X1 : $i]: ((implies @ X0 @ X1) = (or @ (not @ X0) @ X1))),
% 159.45/23.66      inference('cnf', [status(esa)], [implies_definition])).
% 159.45/23.66  thf(zip_derived_cl35, plain,
% 159.45/23.66      (![X0 : $i, X1 : $i, X2 : $i]:
% 159.45/23.66          (theorem @ 
% 159.45/23.66           (implies @ (implies @ X2 @ X0) @ 
% 159.45/23.66            (implies @ (or @ X1 @ X2) @ (or @ X1 @ X0))))),
% 159.45/23.66      inference('dp-resolution', [status(thm)],
% 159.45/23.66                [zip_derived_cl4, zip_derived_cl6])).
% 159.45/23.66  thf(zip_derived_cl49, plain,
% 159.45/23.66      (![X0 : $i, X1 : $i, X2 : $i]:
% 159.45/23.66          (theorem @ 
% 159.45/23.66           (implies @ (implies @ X2 @ X0) @ 
% 159.45/23.66            (implies @ (or @ (not @ X1) @ X2) @ (implies @ X1 @ X0))))),
% 159.45/23.66      inference('s_sup+', [status(thm)], [zip_derived_cl5, zip_derived_cl35])).
% 159.45/23.66  thf(zip_derived_cl5, plain,
% 159.45/23.66      (![X0 : $i, X1 : $i]: ((implies @ X0 @ X1) = (or @ (not @ X0) @ X1))),
% 159.45/23.66      inference('cnf', [status(esa)], [implies_definition])).
% 159.45/23.66  thf(zip_derived_cl51, plain,
% 159.45/23.66      (![X0 : $i, X1 : $i, X2 : $i]:
% 159.45/23.66          (theorem @ 
% 159.45/23.66           (implies @ (implies @ X2 @ X0) @ 
% 159.45/23.66            (implies @ (implies @ X1 @ X2) @ (implies @ X1 @ X0))))),
% 159.45/23.66      inference('demod', [status(thm)], [zip_derived_cl49, zip_derived_cl5])).
% 159.45/23.66  thf(zip_derived_cl5, plain,
% 159.45/23.66      (![X0 : $i, X1 : $i]: ((implies @ X0 @ X1) = (or @ (not @ X0) @ X1))),
% 159.45/23.66      inference('cnf', [status(esa)], [implies_definition])).
% 159.45/23.66  thf(zip_derived_cl5, plain,
% 159.45/23.66      (![X0 : $i, X1 : $i]: ((implies @ X0 @ X1) = (or @ (not @ X0) @ X1))),
% 159.45/23.66      inference('cnf', [status(esa)], [implies_definition])).
% 159.45/23.66  thf(axiom_1_5, axiom,
% 159.45/23.66    (axiom @
% 159.45/23.66     ( implies @ ( or @ A @ ( or @ B @ C ) ) @ ( or @ B @ ( or @ A @ C ) ) ))).
% 159.45/23.66  thf(zip_derived_cl3, plain,
% 159.45/23.66      (![X0 : $i, X1 : $i, X2 : $i]:
% 159.45/23.66          (axiom @ 
% 159.45/23.66           (implies @ (or @ X0 @ (or @ X1 @ X2)) @ (or @ X1 @ (or @ X0 @ X2))))),
% 159.45/23.66      inference('cnf', [status(esa)], [axiom_1_5])).
% 159.45/23.66  thf(zip_derived_cl6, plain, (![X0 : $i]: ( (theorem @ X0) | ~ (axiom @ X0))),
% 159.45/23.66      inference('cnf', [status(esa)], [rule_1])).
% 159.45/23.66  thf(zip_derived_cl34, plain,
% 159.45/23.66      (![X0 : $i, X1 : $i, X2 : $i]:
% 159.45/23.66          (theorem @ 
% 159.45/23.66           (implies @ (or @ X1 @ (or @ X2 @ X0)) @ (or @ X2 @ (or @ X1 @ X0))))),
% 159.45/23.66      inference('dp-resolution', [status(thm)],
% 159.45/23.66                [zip_derived_cl3, zip_derived_cl6])).
% 159.45/23.66  thf(zip_derived_cl56, plain,
% 159.45/23.66      (![X0 : $i, X1 : $i, X2 : $i]:
% 159.45/23.66          (theorem @ 
% 159.45/23.66           (implies @ (or @ X1 @ (or @ (not @ X2) @ X0)) @ 
% 159.45/23.66            (implies @ X2 @ (or @ X1 @ X0))))),
% 159.45/23.66      inference('s_sup+', [status(thm)], [zip_derived_cl5, zip_derived_cl34])).
% 159.45/23.66  thf(zip_derived_cl5, plain,
% 159.45/23.66      (![X0 : $i, X1 : $i]: ((implies @ X0 @ X1) = (or @ (not @ X0) @ X1))),
% 159.45/23.66      inference('cnf', [status(esa)], [implies_definition])).
% 159.45/23.66  thf(zip_derived_cl60, plain,
% 159.45/23.66      (![X0 : $i, X1 : $i, X2 : $i]:
% 159.45/23.66          (theorem @ 
% 159.45/23.66           (implies @ (or @ X1 @ (implies @ X2 @ X0)) @ 
% 159.45/23.66            (implies @ X2 @ (or @ X1 @ X0))))),
% 159.45/23.66      inference('demod', [status(thm)], [zip_derived_cl56, zip_derived_cl5])).
% 159.45/23.66  thf(zip_derived_cl7, plain,
% 159.45/23.66      (![X0 : $i, X1 : $i]:
% 159.45/23.66         ( (theorem @ X0)
% 159.45/23.66          | ~ (theorem @ (implies @ X1 @ X0))
% 159.45/23.66          | ~ (theorem @ X1))),
% 159.45/23.66      inference('cnf', [status(esa)], [rule_2])).
% 159.45/23.66  thf(zip_derived_cl79, plain,
% 159.45/23.66      (![X0 : $i, X1 : $i, X2 : $i]:
% 159.45/23.66         ( (theorem @ (implies @ X2 @ (or @ X1 @ X0)))
% 159.45/23.66          | ~ (theorem @ (or @ X1 @ (implies @ X2 @ X0))))),
% 159.45/23.66      inference('s_sup-', [status(thm)], [zip_derived_cl60, zip_derived_cl7])).
% 159.45/23.66  thf(zip_derived_cl170, plain,
% 159.45/23.66      (![X0 : $i, X1 : $i, X2 : $i]:
% 159.45/23.66         ( (theorem @ (implies @ X1 @ (or @ (not @ X2) @ X0)))
% 159.45/23.66          | ~ (theorem @ (implies @ X2 @ (implies @ X1 @ X0))))),
% 159.45/23.66      inference('s_sup-', [status(thm)], [zip_derived_cl5, zip_derived_cl79])).
% 159.45/23.66  thf(zip_derived_cl5, plain,
% 159.45/23.66      (![X0 : $i, X1 : $i]: ((implies @ X0 @ X1) = (or @ (not @ X0) @ X1))),
% 159.45/23.66      inference('cnf', [status(esa)], [implies_definition])).
% 159.45/23.66  thf(zip_derived_cl171, plain,
% 159.45/23.66      (![X0 : $i, X1 : $i, X2 : $i]:
% 159.45/23.66         ( (theorem @ (implies @ X1 @ (implies @ X2 @ X0)))
% 159.45/23.66          | ~ (theorem @ (implies @ X2 @ (implies @ X1 @ X0))))),
% 159.45/23.66      inference('demod', [status(thm)], [zip_derived_cl170, zip_derived_cl5])).
% 159.45/23.66  thf(zip_derived_cl176, plain,
% 159.45/23.66      (![X0 : $i, X1 : $i, X2 : $i]:
% 159.45/23.66          (theorem @ 
% 159.45/23.66           (implies @ (implies @ X1 @ X2) @ 
% 159.45/23.66            (implies @ (implies @ X2 @ X0) @ (implies @ X1 @ X0))))),
% 159.45/23.66      inference('s_sup-', [status(thm)], [zip_derived_cl51, zip_derived_cl171])).
% 159.45/23.66  thf(zip_derived_cl7, plain,
% 159.45/23.66      (![X0 : $i, X1 : $i]:
% 159.45/23.66         ( (theorem @ X0)
% 159.45/23.66          | ~ (theorem @ (implies @ X1 @ X0))
% 159.45/23.66          | ~ (theorem @ X1))),
% 159.45/23.66      inference('cnf', [status(esa)], [rule_2])).
% 159.45/23.66  thf(zip_derived_cl990, plain,
% 159.45/23.66      (![X0 : $i, X1 : $i, X2 : $i]:
% 159.45/23.66         ( (theorem @ (implies @ (implies @ X2 @ X0) @ (implies @ X1 @ X0)))
% 159.45/23.66          | ~ (theorem @ (implies @ X1 @ X2)))),
% 159.45/23.66      inference('s_sup-', [status(thm)], [zip_derived_cl176, zip_derived_cl7])).
% 159.45/23.66  thf(zip_derived_cl98, plain,
% 159.45/23.66      (![X0 : $i, X1 : $i, X2 : $i]:
% 159.45/23.66         (~ (theorem @ (implies @ X2 @ X0))
% 159.45/23.66          |  (theorem @ (implies @ X1 @ X0))
% 159.45/23.66          | ~ (theorem @ (implies @ X1 @ X2)))),
% 159.45/23.66      inference('s_sup-', [status(thm)], [zip_derived_cl91, zip_derived_cl7])).
% 159.45/23.66  thf(zip_derived_cl1002, plain,
% 159.45/23.66      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i]:
% 159.45/23.66         (~ (theorem @ (implies @ X1 @ X2))
% 159.45/23.66          |  (theorem @ (implies @ X3 @ (implies @ X1 @ X0)))
% 159.45/23.66          | ~ (theorem @ (implies @ X3 @ (implies @ X2 @ X0))))),
% 159.45/23.66      inference('s_sup-', [status(thm)], [zip_derived_cl990, zip_derived_cl98])).
% 159.45/23.66  thf(zip_derived_cl31261, plain,
% 159.45/23.66      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i]:
% 159.45/23.66         ( (theorem @ (implies @ X3 @ (implies @ (or @ X0 @ X1) @ X2)))
% 159.45/23.66          | ~ (theorem @ (implies @ X3 @ (implies @ (or @ X1 @ X0) @ X2))))),
% 159.45/23.66      inference('s_sup-', [status(thm)], [zip_derived_cl33, zip_derived_cl1002])).
% 159.45/23.66  thf(zip_derived_cl47824, plain,
% 159.45/23.66      (![X0 : $i, X1 : $i, X2 : $i]:
% 159.45/23.66          (theorem @ 
% 159.45/23.66           (implies @ (implies @ X2 @ X1) @ 
% 159.45/23.66            (implies @ (or @ X2 @ X0) @ (or @ X1 @ X0))))),
% 159.45/23.66      inference('s_sup-', [status(thm)],
% 159.45/23.66                [zip_derived_cl1558, zip_derived_cl31261])).
% 159.45/23.66  thf(zip_derived_cl48140, plain, ($false),
% 159.45/23.66      inference('demod', [status(thm)], [zip_derived_cl8, zip_derived_cl47824])).
% 159.45/23.66  
% 159.45/23.66  % SZS output end Refutation
% 159.45/23.66  
% 159.45/23.66  
% 159.45/23.66  % Terminating...
% 23.15/23.72  % Runner terminated.
% 23.15/23.75  % Zipperpin 1.5 exiting
%------------------------------------------------------------------------------