TSTP Solution File: SET018-6 by Zipperpin---2.1.9999

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : Zipperpin---2.1.9999
% Problem  : SET018-6 : TPTP v8.1.2. Bugfixed v2.1.0.
% Transfm  : NO INFORMATION
% Format   : NO INFORMATION
% Command  : python3 /export/starexec/sandbox/solver/bin/portfolio.lams.parallel.py %s %d /export/starexec/sandbox/tmp/tmp.NCLsW7oiJl true

% Computer : n012.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 16:11:49 EDT 2023

% Result   : Unsatisfiable 1.68s 0.93s
% Output   : Refutation 1.68s
% Verified : 
% SZS Type : -

% Comments : 
%------------------------------------------------------------------------------
%----WARNING: Could not form TPTP format derivation
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.12  % Problem  : SET018-6 : TPTP v8.1.2. Bugfixed v2.1.0.
% 0.00/0.14  % Command  : python3 /export/starexec/sandbox/solver/bin/portfolio.lams.parallel.py %s %d /export/starexec/sandbox/tmp/tmp.NCLsW7oiJl true
% 0.14/0.35  % Computer : n012.cluster.edu
% 0.14/0.35  % Model    : x86_64 x86_64
% 0.14/0.35  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.14/0.35  % Memory   : 8042.1875MB
% 0.14/0.35  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.14/0.35  % CPULimit : 300
% 0.14/0.35  % WCLimit  : 300
% 0.14/0.35  % DateTime : Sat Aug 26 14:24:40 EDT 2023
% 0.14/0.35  % CPUTime  : 
% 0.14/0.35  % Running portfolio for 300 s
% 0.14/0.35  % File         : /export/starexec/sandbox/benchmark/theBenchmark.p
% 0.14/0.35  % Number of cores: 8
% 0.14/0.35  % Python version: Python 3.6.8
% 0.14/0.36  % Running in FO mode
% 0.21/0.66  % Total configuration time : 435
% 0.21/0.66  % Estimated wc time : 1092
% 0.21/0.66  % Estimated cpu time (7 cpus) : 156.0
% 0.21/0.70  % /export/starexec/sandbox/solver/bin/fo/fo6_bce.sh running for 75s
% 0.21/0.74  % /export/starexec/sandbox/solver/bin/fo/fo3_bce.sh running for 75s
% 0.21/0.75  % /export/starexec/sandbox/solver/bin/fo/fo7.sh running for 63s
% 0.21/0.75  % /export/starexec/sandbox/solver/bin/fo/fo1_av.sh running for 75s
% 0.21/0.75  % /export/starexec/sandbox/solver/bin/fo/fo13.sh running for 50s
% 0.21/0.76  % /export/starexec/sandbox/solver/bin/fo/fo5.sh running for 50s
% 0.21/0.76  % /export/starexec/sandbox/solver/bin/fo/fo4.sh running for 50s
% 0.21/0.79  % /export/starexec/sandbox/solver/bin/fo/fo1_lcnf.sh running for 50s
% 1.68/0.93  % Solved by fo/fo7.sh.
% 1.68/0.93  % done 262 iterations in 0.153s
% 1.68/0.93  % SZS status Theorem for '/export/starexec/sandbox/benchmark/theBenchmark.p'
% 1.68/0.93  % SZS output start Refutation
% 1.68/0.93  thf(universal_class_type, type, universal_class: $i).
% 1.68/0.93  thf(member_type, type, member: $i > $i > $o).
% 1.68/0.93  thf(w_type, type, w: $i).
% 1.68/0.93  thf(unordered_pair_type, type, unordered_pair: $i > $i > $i).
% 1.68/0.93  thf(y_type, type, y: $i).
% 1.68/0.93  thf(x_type, type, x: $i).
% 1.68/0.93  thf(z_type, type, z: $i).
% 1.68/0.93  thf(singleton_type, type, singleton: $i > $i).
% 1.68/0.93  thf(cross_product_type, type, cross_product: $i > $i > $i).
% 1.68/0.93  thf(ordered_pair_type, type, ordered_pair: $i > $i > $i).
% 1.68/0.93  thf(prove_ordered_pair_determines_components2_2, conjecture,
% 1.68/0.93    (~( member @ x @ universal_class ))).
% 1.68/0.93  thf(zf_stmt_0, negated_conjecture, (member @ x @ universal_class),
% 1.68/0.93    inference('cnf.neg', [status(esa)],
% 1.68/0.93              [prove_ordered_pair_determines_components2_2])).
% 1.68/0.93  thf(zip_derived_cl39, plain, ( (member @ x @ universal_class)),
% 1.68/0.93      inference('cnf', [status(esa)], [zf_stmt_0])).
% 1.68/0.93  thf(unordered_pair2, axiom,
% 1.68/0.93    (( ~( member @ X @ universal_class ) ) | 
% 1.68/0.93     ( member @ X @ ( unordered_pair @ X @ Y ) ))).
% 1.68/0.93  thf(zip_derived_cl6, plain,
% 1.68/0.93      (![X0 : $i, X1 : $i]:
% 1.68/0.93         (~ (member @ X0 @ universal_class)
% 1.68/0.93          |  (member @ X0 @ (unordered_pair @ X0 @ X1)))),
% 1.68/0.93      inference('cnf', [status(esa)], [unordered_pair2])).
% 1.68/0.93  thf(zip_derived_cl66, plain,
% 1.68/0.93      (![X0 : $i]:  (member @ x @ (unordered_pair @ x @ X0))),
% 1.68/0.93      inference('sup-', [status(thm)], [zip_derived_cl39, zip_derived_cl6])).
% 1.68/0.93  thf(prove_ordered_pair_determines_components2_1, conjecture,
% 1.68/0.93    (( ordered_pair @ w @ x ) != ( ordered_pair @ y @ z ))).
% 1.68/0.93  thf(zf_stmt_1, negated_conjecture,
% 1.68/0.93    (( ordered_pair @ w @ x ) = ( ordered_pair @ y @ z )),
% 1.68/0.93    inference('cnf.neg', [status(esa)],
% 1.68/0.93              [prove_ordered_pair_determines_components2_1])).
% 1.68/0.93  thf(zip_derived_cl40, plain,
% 1.68/0.93      (((ordered_pair @ w @ x) = (ordered_pair @ y @ z))),
% 1.68/0.93      inference('cnf', [status(esa)], [zf_stmt_1])).
% 1.68/0.93  thf(ordered_pair, axiom,
% 1.68/0.93    (( unordered_pair @
% 1.68/0.93       ( singleton @ X ) @ ( unordered_pair @ X @ ( singleton @ Y ) ) ) =
% 1.68/0.93     ( ordered_pair @ X @ Y ))).
% 1.68/0.93  thf(zip_derived_cl10, plain,
% 1.68/0.93      (![X0 : $i, X1 : $i]:
% 1.68/0.93         ((unordered_pair @ (singleton @ X0) @ 
% 1.68/0.93           (unordered_pair @ X0 @ (singleton @ X1))) = (ordered_pair @ X0 @ X1))),
% 1.68/0.93      inference('cnf', [status(esa)], [ordered_pair])).
% 1.68/0.93  thf(singleton_set, axiom, (( unordered_pair @ X @ X ) = ( singleton @ X ))).
% 1.68/0.93  thf(zip_derived_cl9, plain,
% 1.68/0.93      (![X0 : $i]: ((unordered_pair @ X0 @ X0) = (singleton @ X0))),
% 1.68/0.93      inference('cnf', [status(esa)], [singleton_set])).
% 1.68/0.93  thf(zip_derived_cl9, plain,
% 1.68/0.93      (![X0 : $i]: ((unordered_pair @ X0 @ X0) = (singleton @ X0))),
% 1.68/0.93      inference('cnf', [status(esa)], [singleton_set])).
% 1.68/0.93  thf(zip_derived_cl59, plain,
% 1.68/0.93      (![X0 : $i, X1 : $i]:
% 1.68/0.93         ((unordered_pair @ (unordered_pair @ X0 @ X0) @ 
% 1.68/0.93           (unordered_pair @ X0 @ (unordered_pair @ X1 @ X1)))
% 1.68/0.93           = (ordered_pair @ X0 @ X1))),
% 1.68/0.93      inference('demod', [status(thm)],
% 1.68/0.93                [zip_derived_cl10, zip_derived_cl9, zip_derived_cl9])).
% 1.68/0.93  thf(zip_derived_cl60, plain,
% 1.68/0.93      (((unordered_pair @ (unordered_pair @ w @ w) @ 
% 1.68/0.93         (unordered_pair @ w @ (unordered_pair @ x @ x)))
% 1.68/0.93         = (ordered_pair @ y @ z))),
% 1.68/0.93      inference('demod', [status(thm)], [zip_derived_cl40, zip_derived_cl59])).
% 1.68/0.93  thf(zip_derived_cl59, plain,
% 1.68/0.93      (![X0 : $i, X1 : $i]:
% 1.68/0.93         ((unordered_pair @ (unordered_pair @ X0 @ X0) @ 
% 1.68/0.93           (unordered_pair @ X0 @ (unordered_pair @ X1 @ X1)))
% 1.68/0.93           = (ordered_pair @ X0 @ X1))),
% 1.68/0.93      inference('demod', [status(thm)],
% 1.68/0.93                [zip_derived_cl10, zip_derived_cl9, zip_derived_cl9])).
% 1.68/0.93  thf(zip_derived_cl80, plain,
% 1.68/0.93      (((unordered_pair @ (unordered_pair @ y @ y) @ 
% 1.68/0.93         (unordered_pair @ y @ (unordered_pair @ z @ z)))
% 1.68/0.93         = (unordered_pair @ (unordered_pair @ w @ w) @ 
% 1.68/0.93            (unordered_pair @ w @ (unordered_pair @ x @ x))))),
% 1.68/0.93      inference('sup+', [status(thm)], [zip_derived_cl60, zip_derived_cl59])).
% 1.68/0.93  thf(unordered_pairs_in_universal, axiom,
% 1.68/0.93    (member @ ( unordered_pair @ X @ Y ) @ universal_class)).
% 1.68/0.93  thf(zip_derived_cl8, plain,
% 1.68/0.93      (![X0 : $i, X1 : $i]:
% 1.68/0.93          (member @ (unordered_pair @ X0 @ X1) @ universal_class)),
% 1.68/0.93      inference('cnf', [status(esa)], [unordered_pairs_in_universal])).
% 1.68/0.93  thf(unordered_pair3, axiom,
% 1.68/0.93    (( ~( member @ Y @ universal_class ) ) | 
% 1.68/0.93     ( member @ Y @ ( unordered_pair @ X @ Y ) ))).
% 1.68/0.93  thf(zip_derived_cl7, plain,
% 1.68/0.93      (![X0 : $i, X1 : $i]:
% 1.68/0.93         (~ (member @ X0 @ universal_class)
% 1.68/0.93          |  (member @ X0 @ (unordered_pair @ X1 @ X0)))),
% 1.68/0.93      inference('cnf', [status(esa)], [unordered_pair3])).
% 1.68/0.93  thf(zip_derived_cl67, plain,
% 1.68/0.93      (![X0 : $i, X1 : $i, X2 : $i]:
% 1.68/0.93          (member @ (unordered_pair @ X1 @ X0) @ 
% 1.68/0.93           (unordered_pair @ X2 @ (unordered_pair @ X1 @ X0)))),
% 1.68/0.93      inference('sup-', [status(thm)], [zip_derived_cl8, zip_derived_cl7])).
% 1.68/0.93  thf(zip_derived_cl146, plain,
% 1.68/0.93      ( (member @ (unordered_pair @ y @ (unordered_pair @ z @ z)) @ 
% 1.68/0.93         (unordered_pair @ (unordered_pair @ w @ w) @ 
% 1.68/0.93          (unordered_pair @ w @ (unordered_pair @ x @ x))))),
% 1.68/0.93      inference('sup+', [status(thm)], [zip_derived_cl80, zip_derived_cl67])).
% 1.68/0.93  thf(unordered_pair_member, axiom,
% 1.68/0.93    (( ~( member @ U @ ( unordered_pair @ X @ Y ) ) ) | ( ( U ) = ( X ) ) | 
% 1.68/0.93     ( ( U ) = ( Y ) ))).
% 1.68/0.93  thf(zip_derived_cl5, plain,
% 1.68/0.93      (![X0 : $i, X1 : $i, X2 : $i]:
% 1.68/0.93         (~ (member @ X0 @ (unordered_pair @ X1 @ X2))
% 1.68/0.93          | ((X0) = (X1))
% 1.68/0.93          | ((X0) = (X2)))),
% 1.68/0.93      inference('cnf', [status(esa)], [unordered_pair_member])).
% 1.68/0.93  thf(zip_derived_cl452, plain,
% 1.68/0.93      ((((unordered_pair @ y @ (unordered_pair @ z @ z))
% 1.68/0.93          = (unordered_pair @ w @ (unordered_pair @ x @ x)))
% 1.68/0.93        | ((unordered_pair @ y @ (unordered_pair @ z @ z))
% 1.68/0.93            = (unordered_pair @ w @ w)))),
% 1.68/0.93      inference('sup-', [status(thm)], [zip_derived_cl146, zip_derived_cl5])).
% 1.68/0.93  thf(zip_derived_cl67, plain,
% 1.68/0.93      (![X0 : $i, X1 : $i, X2 : $i]:
% 1.68/0.93          (member @ (unordered_pair @ X1 @ X0) @ 
% 1.68/0.93           (unordered_pair @ X2 @ (unordered_pair @ X1 @ X0)))),
% 1.68/0.93      inference('sup-', [status(thm)], [zip_derived_cl8, zip_derived_cl7])).
% 1.68/0.93  thf(zip_derived_cl467, plain,
% 1.68/0.93      (( (member @ (unordered_pair @ z @ z) @ 
% 1.68/0.93          (unordered_pair @ w @ (unordered_pair @ x @ x)))
% 1.68/0.93        | ((unordered_pair @ y @ (unordered_pair @ z @ z))
% 1.68/0.93            = (unordered_pair @ w @ w)))),
% 1.68/0.93      inference('sup+', [status(thm)], [zip_derived_cl452, zip_derived_cl67])).
% 1.68/0.93  thf(zip_derived_cl5, plain,
% 1.68/0.93      (![X0 : $i, X1 : $i, X2 : $i]:
% 1.68/0.93         (~ (member @ X0 @ (unordered_pair @ X1 @ X2))
% 1.68/0.93          | ((X0) = (X1))
% 1.68/0.93          | ((X0) = (X2)))),
% 1.68/0.93      inference('cnf', [status(esa)], [unordered_pair_member])).
% 1.68/0.93  thf(zip_derived_cl487, plain,
% 1.68/0.93      ((((unordered_pair @ y @ (unordered_pair @ z @ z))
% 1.68/0.93          = (unordered_pair @ w @ w))
% 1.68/0.93        | ((unordered_pair @ z @ z) = (unordered_pair @ x @ x))
% 1.68/0.93        | ((unordered_pair @ z @ z) = (w)))),
% 1.68/0.93      inference('sup-', [status(thm)], [zip_derived_cl467, zip_derived_cl5])).
% 1.68/0.93  thf(zip_derived_cl67, plain,
% 1.68/0.93      (![X0 : $i, X1 : $i, X2 : $i]:
% 1.68/0.93          (member @ (unordered_pair @ X1 @ X0) @ 
% 1.68/0.93           (unordered_pair @ X2 @ (unordered_pair @ X1 @ X0)))),
% 1.68/0.93      inference('sup-', [status(thm)], [zip_derived_cl8, zip_derived_cl7])).
% 1.68/0.93  thf(zip_derived_cl504, plain,
% 1.68/0.93      (( (member @ (unordered_pair @ z @ z) @ (unordered_pair @ w @ w))
% 1.68/0.93        | ((unordered_pair @ z @ z) = (w))
% 1.68/0.93        | ((unordered_pair @ z @ z) = (unordered_pair @ x @ x)))),
% 1.68/0.93      inference('sup+', [status(thm)], [zip_derived_cl487, zip_derived_cl67])).
% 1.68/0.93  thf(zip_derived_cl5, plain,
% 1.68/0.93      (![X0 : $i, X1 : $i, X2 : $i]:
% 1.68/0.93         (~ (member @ X0 @ (unordered_pair @ X1 @ X2))
% 1.68/0.93          | ((X0) = (X1))
% 1.68/0.93          | ((X0) = (X2)))),
% 1.68/0.93      inference('cnf', [status(esa)], [unordered_pair_member])).
% 1.68/0.93  thf(zip_derived_cl569, plain,
% 1.68/0.93      ((((unordered_pair @ z @ z) = (unordered_pair @ x @ x))
% 1.68/0.93        | ((unordered_pair @ z @ z) = (w))
% 1.68/0.93        | ((unordered_pair @ z @ z) = (w))
% 1.68/0.93        | ((unordered_pair @ z @ z) = (w)))),
% 1.68/0.93      inference('sup-', [status(thm)], [zip_derived_cl504, zip_derived_cl5])).
% 1.68/0.93  thf(zip_derived_cl571, plain,
% 1.68/0.93      ((((unordered_pair @ z @ z) = (w))
% 1.68/0.93        | ((unordered_pair @ z @ z) = (unordered_pair @ x @ x)))),
% 1.68/0.93      inference('simplify', [status(thm)], [zip_derived_cl569])).
% 1.68/0.93  thf(zip_derived_cl5, plain,
% 1.68/0.93      (![X0 : $i, X1 : $i, X2 : $i]:
% 1.68/0.93         (~ (member @ X0 @ (unordered_pair @ X1 @ X2))
% 1.68/0.93          | ((X0) = (X1))
% 1.68/0.93          | ((X0) = (X2)))),
% 1.68/0.93      inference('cnf', [status(esa)], [unordered_pair_member])).
% 1.68/0.93  thf(zip_derived_cl572, plain,
% 1.68/0.93      (![X0 : $i]:
% 1.68/0.93         (~ (member @ X0 @ (unordered_pair @ x @ x))
% 1.68/0.93          | ((unordered_pair @ z @ z) = (w))
% 1.68/0.93          | ((X0) = (z))
% 1.68/0.93          | ((X0) = (z)))),
% 1.68/0.93      inference('sup-', [status(thm)], [zip_derived_cl571, zip_derived_cl5])).
% 1.68/0.93  thf(zip_derived_cl613, plain,
% 1.68/0.93      (![X0 : $i]:
% 1.68/0.93         (((X0) = (z))
% 1.68/0.93          | ((unordered_pair @ z @ z) = (w))
% 1.68/0.93          | ~ (member @ X0 @ (unordered_pair @ x @ x)))),
% 1.68/0.93      inference('simplify', [status(thm)], [zip_derived_cl572])).
% 1.68/0.93  thf(zip_derived_cl619, plain,
% 1.68/0.93      ((((unordered_pair @ z @ z) = (w)) | ((x) = (z)))),
% 1.68/0.93      inference('sup-', [status(thm)], [zip_derived_cl66, zip_derived_cl613])).
% 1.68/0.93  thf(prove_ordered_pair_determines_components2_3, conjecture, (( x ) = ( z ))).
% 1.68/0.93  thf(zf_stmt_2, negated_conjecture, (( x ) != ( z )),
% 1.68/0.93    inference('cnf.neg', [status(esa)],
% 1.68/0.93              [prove_ordered_pair_determines_components2_3])).
% 1.68/0.93  thf(zip_derived_cl38, plain, (((x) != (z))),
% 1.68/0.93      inference('cnf', [status(esa)], [zf_stmt_2])).
% 1.68/0.93  thf(zip_derived_cl622, plain, (((unordered_pair @ z @ z) = (w))),
% 1.68/0.93      inference('simplify_reflect-', [status(thm)],
% 1.68/0.93                [zip_derived_cl619, zip_derived_cl38])).
% 1.68/0.93  thf(zip_derived_cl8, plain,
% 1.68/0.93      (![X0 : $i, X1 : $i]:
% 1.68/0.93          (member @ (unordered_pair @ X0 @ X1) @ universal_class)),
% 1.68/0.93      inference('cnf', [status(esa)], [unordered_pairs_in_universal])).
% 1.68/0.93  thf(zip_derived_cl632, plain, ( (member @ w @ universal_class)),
% 1.68/0.93      inference('sup+', [status(thm)], [zip_derived_cl622, zip_derived_cl8])).
% 1.68/0.93  thf(zip_derived_cl66, plain,
% 1.68/0.93      (![X0 : $i]:  (member @ x @ (unordered_pair @ x @ X0))),
% 1.68/0.93      inference('sup-', [status(thm)], [zip_derived_cl39, zip_derived_cl6])).
% 1.68/0.93  thf(cartesian_product3, axiom,
% 1.68/0.93    (( ~( member @ U @ X ) ) | ( ~( member @ V @ Y ) ) | 
% 1.68/0.93     ( member @ ( ordered_pair @ U @ V ) @ ( cross_product @ X @ Y ) ))).
% 1.68/0.93  thf(zip_derived_cl13, plain,
% 1.68/0.93      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i]:
% 1.68/0.93         (~ (member @ X0 @ X1)
% 1.68/0.93          | ~ (member @ X2 @ X3)
% 1.68/0.93          |  (member @ (ordered_pair @ X0 @ X2) @ (cross_product @ X1 @ X3)))),
% 1.68/0.93      inference('cnf', [status(esa)], [cartesian_product3])).
% 1.68/0.93  thf(zip_derived_cl59, plain,
% 1.68/0.93      (![X0 : $i, X1 : $i]:
% 1.68/0.93         ((unordered_pair @ (unordered_pair @ X0 @ X0) @ 
% 1.68/0.93           (unordered_pair @ X0 @ (unordered_pair @ X1 @ X1)))
% 1.68/0.93           = (ordered_pair @ X0 @ X1))),
% 1.68/0.93      inference('demod', [status(thm)],
% 1.68/0.93                [zip_derived_cl10, zip_derived_cl9, zip_derived_cl9])).
% 1.68/0.93  thf(zip_derived_cl354, plain,
% 1.68/0.93      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i]:
% 1.68/0.93         (~ (member @ X0 @ X1)
% 1.68/0.93          | ~ (member @ X2 @ X3)
% 1.68/0.93          |  (member @ 
% 1.68/0.93              (unordered_pair @ (unordered_pair @ X0 @ X0) @ 
% 1.68/0.93               (unordered_pair @ X0 @ (unordered_pair @ X2 @ X2))) @ 
% 1.68/0.93              (cross_product @ X1 @ X3)))),
% 1.68/0.93      inference('demod', [status(thm)], [zip_derived_cl13, zip_derived_cl59])).
% 1.68/0.93  thf(zip_derived_cl80, plain,
% 1.68/0.93      (((unordered_pair @ (unordered_pair @ y @ y) @ 
% 1.68/0.93         (unordered_pair @ y @ (unordered_pair @ z @ z)))
% 1.68/0.93         = (unordered_pair @ (unordered_pair @ w @ w) @ 
% 1.68/0.93            (unordered_pair @ w @ (unordered_pair @ x @ x))))),
% 1.68/0.93      inference('sup+', [status(thm)], [zip_derived_cl60, zip_derived_cl59])).
% 1.68/0.93  thf(cartesian_product2, axiom,
% 1.68/0.93    (( ~( member @ ( ordered_pair @ U @ V ) @ ( cross_product @ X @ Y ) ) ) | 
% 1.68/0.93     ( member @ V @ Y ))).
% 1.68/0.93  thf(zip_derived_cl12, plain,
% 1.68/0.93      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i]:
% 1.68/0.93         (~ (member @ (ordered_pair @ X0 @ X1) @ (cross_product @ X2 @ X3))
% 1.68/0.93          |  (member @ X1 @ X3))),
% 1.68/0.93      inference('cnf', [status(esa)], [cartesian_product2])).
% 1.68/0.93  thf(zip_derived_cl59, plain,
% 1.68/0.93      (![X0 : $i, X1 : $i]:
% 1.68/0.93         ((unordered_pair @ (unordered_pair @ X0 @ X0) @ 
% 1.68/0.93           (unordered_pair @ X0 @ (unordered_pair @ X1 @ X1)))
% 1.68/0.93           = (ordered_pair @ X0 @ X1))),
% 1.68/0.93      inference('demod', [status(thm)],
% 1.68/0.93                [zip_derived_cl10, zip_derived_cl9, zip_derived_cl9])).
% 1.68/0.93  thf(zip_derived_cl70, plain,
% 1.68/0.93      (![X0 : $i, X1 : $i, X2 : $i, X3 : $i]:
% 1.68/0.93         (~ (member @ 
% 1.68/0.93             (unordered_pair @ (unordered_pair @ X0 @ X0) @ 
% 1.68/0.93              (unordered_pair @ X0 @ (unordered_pair @ X1 @ X1))) @ 
% 1.68/0.93             (cross_product @ X2 @ X3))
% 1.68/0.93          |  (member @ X1 @ X3))),
% 1.68/0.93      inference('demod', [status(thm)], [zip_derived_cl12, zip_derived_cl59])).
% 1.68/0.93  thf(zip_derived_cl150, plain,
% 1.68/0.93      (![X0 : $i, X1 : $i]:
% 1.68/0.93         (~ (member @ 
% 1.68/0.93             (unordered_pair @ (unordered_pair @ w @ w) @ 
% 1.68/0.93              (unordered_pair @ w @ (unordered_pair @ x @ x))) @ 
% 1.68/0.93             (cross_product @ X1 @ X0))
% 1.68/0.93          |  (member @ z @ X0))),
% 1.68/0.93      inference('sup-', [status(thm)], [zip_derived_cl80, zip_derived_cl70])).
% 1.68/0.93  thf(zip_derived_cl361, plain,
% 1.68/0.93      (![X0 : $i, X1 : $i]:
% 1.68/0.93         (~ (member @ x @ X0) | ~ (member @ w @ X1) |  (member @ z @ X0))),
% 1.68/0.93      inference('sup-', [status(thm)], [zip_derived_cl354, zip_derived_cl150])).
% 1.68/0.93  thf(zip_derived_cl375, plain,
% 1.68/0.93      (![X0 : $i, X1 : $i]:
% 1.68/0.93         ( (member @ z @ (unordered_pair @ x @ X0)) | ~ (member @ w @ X1))),
% 1.68/0.93      inference('sup-', [status(thm)], [zip_derived_cl66, zip_derived_cl361])).
% 1.68/0.93  thf(zip_derived_cl692, plain,
% 1.68/0.93      (![X0 : $i]:  (member @ z @ (unordered_pair @ x @ X0))),
% 1.68/0.93      inference('sup-', [status(thm)], [zip_derived_cl632, zip_derived_cl375])).
% 1.68/0.93  thf(zip_derived_cl5, plain,
% 1.68/0.93      (![X0 : $i, X1 : $i, X2 : $i]:
% 1.68/0.93         (~ (member @ X0 @ (unordered_pair @ X1 @ X2))
% 1.68/0.93          | ((X0) = (X1))
% 1.68/0.93          | ((X0) = (X2)))),
% 1.68/0.93      inference('cnf', [status(esa)], [unordered_pair_member])).
% 1.68/0.93  thf(zip_derived_cl777, plain, (![X0 : $i]: (((z) = (X0)) | ((z) = (x)))),
% 1.68/0.93      inference('sup-', [status(thm)], [zip_derived_cl692, zip_derived_cl5])).
% 1.68/0.93  thf(zip_derived_cl38, plain, (((x) != (z))),
% 1.68/0.93      inference('cnf', [status(esa)], [zf_stmt_2])).
% 1.68/0.93  thf(zip_derived_cl778, plain, (![X0 : $i]: ((z) = (X0))),
% 1.68/0.93      inference('simplify_reflect-', [status(thm)],
% 1.68/0.93                [zip_derived_cl777, zip_derived_cl38])).
% 1.68/0.93  thf(zip_derived_cl38, plain, (((x) != (z))),
% 1.68/0.93      inference('cnf', [status(esa)], [zf_stmt_2])).
% 1.68/0.93  thf(zip_derived_cl882, plain, (((x) != (z))),
% 1.68/0.93      inference('sup-', [status(thm)], [zip_derived_cl778, zip_derived_cl38])).
% 1.68/0.93  thf(zip_derived_cl778, plain, (![X0 : $i]: ((z) = (X0))),
% 1.68/0.93      inference('simplify_reflect-', [status(thm)],
% 1.68/0.93                [zip_derived_cl777, zip_derived_cl38])).
% 1.68/0.93  thf(zip_derived_cl935, plain, ($false),
% 1.68/0.93      inference('simplify_reflect+', [status(thm)],
% 1.68/0.93                [zip_derived_cl882, zip_derived_cl778])).
% 1.68/0.93  
% 1.68/0.93  % SZS output end Refutation
% 1.68/0.93  
% 1.68/0.93  
% 1.68/0.93  % Terminating...
% 1.68/0.99  % Runner terminated.
% 1.68/1.00  % Zipperpin 1.5 exiting
%------------------------------------------------------------------------------