%------------------------------------------------------------------------------
% File     : Zipperpin---2.1.9999
% Problem  : PUZ028-5 : TPTP v8.1.2. Released v2.0.0.
% Transfm  : NO INFORMATION
% Format   : NO INFORMATION
% Command  : python3 /export/starexec/sandbox/solver/bin/portfolio.lams.parallel.py %s %d /export/starexec/sandbox/tmp/tmp.BqVPmai6R1 true

% Computer : n013.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 13:30:41 EDT 2023

% Result   : Unsatisfiable 0.58s 0.99s
% Output   : Refutation 0.58s
% Verified : 
% SZS Type : -

% Comments : 
%------------------------------------------------------------------------------
%----WARNING: Could not form TPTP format derivation
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.13  % Problem  : PUZ028-5 : TPTP v8.1.2. Released v2.0.0.
% 0.00/0.14  % Command  : python3 /export/starexec/sandbox/solver/bin/portfolio.lams.parallel.py %s %d /export/starexec/sandbox/tmp/tmp.BqVPmai6R1 true
% 0.14/0.35  % Computer : n013.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 21:53:17 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
% 0.22/0.67  % Total configuration time : 435
% 0.22/0.67  % Estimated wc time : 1092
% 0.22/0.67  % Estimated cpu time (7 cpus) : 156.0
% 0.22/0.71  % /export/starexec/sandbox/solver/bin/fo/fo6_bce.sh running for 75s
% 0.22/0.72  % /export/starexec/sandbox/solver/bin/fo/fo3_bce.sh running for 75s
% 0.22/0.74  % /export/starexec/sandbox/solver/bin/fo/fo1_av.sh running for 75s
% 0.22/0.75  % /export/starexec/sandbox/solver/bin/fo/fo7.sh running for 63s
% 0.57/0.76  % /export/starexec/sandbox/solver/bin/fo/fo13.sh running for 50s
% 0.57/0.76  % /export/starexec/sandbox/solver/bin/fo/fo5.sh running for 50s
% 0.57/0.76  % /export/starexec/sandbox/solver/bin/fo/fo4.sh running for 50s
% 0.58/0.99  % Solved by fo/fo7.sh.
% 0.58/0.99  % done 454 iterations in 0.204s
% 0.58/0.99  % SZS status Theorem for '/export/starexec/sandbox/benchmark/theBenchmark.p'
% 0.58/0.99  % SZS output start Refutation
% 0.58/0.99  thf(one_type, type, one: $i).
% 0.58/0.99  thf(three_type, type, three: $i).
% 0.58/0.99  thf(after_type, type, after: $i > $i > $o).
% 0.58/0.99  thf(person_type, type, person: $i > $o).
% 0.58/0.99  thf(two_type, type, two: $i).
% 0.58/0.99  thf(not_familiar_type, type, not_familiar: $i > $i > $o).
% 0.58/0.99  thf(familiar_type, type, familiar: $i > $i > $o).
% 0.58/0.99  thf(four_type, type, four: $i).
% 0.58/0.99  thf(five_type, type, five: $i).
% 0.58/0.99  thf(six_type, type, six: $i).
% 0.58/0.99  thf(familiar_or_not, axiom,
% 0.58/0.99    (( familiar @ X @ Y ) | ( not_familiar @ X @ Y ) | ( ~( person @ X ) ) | 
% 0.58/0.99     ( ~( person @ Y ) ) | ( ~( after @ X @ Y ) ))).
% 0.58/0.99  thf(zip_derived_cl12, plain,
% 0.58/0.99      (![X0 : $i, X1 : $i]:
% 0.58/0.99         ( (familiar @ X0 @ X1)
% 0.58/0.99          |  (not_familiar @ X0 @ X1)
% 0.58/0.99          | ~ (person @ X0)
% 0.58/0.99          | ~ (person @ X1)
% 0.58/0.99          | ~ (after @ X0 @ X1))),
% 0.58/0.99      inference('cnf', [status(esa)], [familiar_or_not])).
% 0.58/0.99  thf(order4, axiom, (after @ four @ five)).
% 0.58/0.99  thf(zip_derived_cl9, plain, ( (after @ four @ five)),
% 0.58/0.99      inference('cnf', [status(esa)], [order4])).
% 0.58/0.99  thf(zip_derived_cl12, plain,
% 0.58/0.99      (![X0 : $i, X1 : $i]:
% 0.58/0.99         ( (familiar @ X0 @ X1)
% 0.58/0.99          |  (not_familiar @ X0 @ X1)
% 0.58/0.99          | ~ (person @ X0)
% 0.58/0.99          | ~ (person @ X1)
% 0.58/0.99          | ~ (after @ X0 @ X1))),
% 0.58/0.99      inference('cnf', [status(esa)], [familiar_or_not])).
% 0.58/0.99  thf(zip_derived_cl9, plain, ( (after @ four @ five)),
% 0.58/0.99      inference('cnf', [status(esa)], [order4])).
% 0.58/0.99  thf(order3, axiom, (after @ three @ four)).
% 0.58/0.99  thf(zip_derived_cl8, plain, ( (after @ three @ four)),
% 0.58/0.99      inference('cnf', [status(esa)], [order3])).
% 0.58/0.99  thf(transitivity_of_order, axiom,
% 0.58/0.99    (( after @ Large @ Small ) | ( ~( after @ Large @ Medium ) ) | 
% 0.58/0.99     ( ~( after @ Medium @ Small ) ))).
% 0.58/0.99  thf(zip_derived_cl11, plain,
% 0.58/0.99      (![X0 : $i, X1 : $i, X2 : $i]:
% 0.58/0.99         ( (after @ X0 @ X1) | ~ (after @ X0 @ X2) | ~ (after @ X2 @ X1))),
% 0.58/0.99      inference('cnf', [status(esa)], [transitivity_of_order])).
% 0.58/0.99  thf(zip_derived_cl27, plain,
% 0.58/0.99      (![X0 : $i]: (~ (after @ four @ X0) |  (after @ three @ X0))),
% 0.58/0.99      inference('sup-', [status(thm)], [zip_derived_cl8, zip_derived_cl11])).
% 0.58/0.99  thf(zip_derived_cl36, plain, ( (after @ three @ five)),
% 0.58/0.99      inference('sup-', [status(thm)], [zip_derived_cl9, zip_derived_cl27])).
% 0.58/0.99  thf(order2, axiom, (after @ two @ three)).
% 0.58/0.99  thf(zip_derived_cl7, plain, ( (after @ two @ three)),
% 0.58/0.99      inference('cnf', [status(esa)], [order2])).
% 0.58/0.99  thf(zip_derived_cl11, plain,
% 0.58/0.99      (![X0 : $i, X1 : $i, X2 : $i]:
% 0.58/0.99         ( (after @ X0 @ X1) | ~ (after @ X0 @ X2) | ~ (after @ X2 @ X1))),
% 0.58/0.99      inference('cnf', [status(esa)], [transitivity_of_order])).
% 0.58/0.99  thf(zip_derived_cl25, plain,
% 0.58/0.99      (![X0 : $i]: (~ (after @ three @ X0) |  (after @ two @ X0))),
% 0.58/0.99      inference('sup-', [status(thm)], [zip_derived_cl7, zip_derived_cl11])).
% 0.58/0.99  thf(zip_derived_cl38, plain, ( (after @ two @ five)),
% 0.58/0.99      inference('sup-', [status(thm)], [zip_derived_cl36, zip_derived_cl25])).
% 0.58/0.99  thf(zip_derived_cl12, plain,
% 0.58/0.99      (![X0 : $i, X1 : $i]:
% 0.58/0.99         ( (familiar @ X0 @ X1)
% 0.58/0.99          |  (not_familiar @ X0 @ X1)
% 0.58/0.99          | ~ (person @ X0)
% 0.58/0.99          | ~ (person @ X1)
% 0.58/0.99          | ~ (after @ X0 @ X1))),
% 0.58/0.99      inference('cnf', [status(esa)], [familiar_or_not])).
% 0.58/0.99  thf(three_not_familiar, conjecture,
% 0.58/0.99    (~( ( ~( not_familiar @ X1 @ X3 ) ) | ( ~( not_familiar @ X2 @ X3 ) ) | 
% 0.58/0.99        ( ~( not_familiar @ X1 @ X2 ) ) ))).
% 0.58/0.99  thf(zf_stmt_0, negated_conjecture,
% 0.58/0.99    (( ~( not_familiar @ X1 @ X3 ) ) | ( ~( not_familiar @ X2 @ X3 ) ) | 
% 0.58/0.99     ( ~( not_familiar @ X1 @ X2 ) )),
% 0.58/0.99    inference('cnf.neg', [status(esa)], [three_not_familiar])).
% 0.58/0.99  thf(zip_derived_cl14, plain,
% 0.58/0.99      (![X0 : $i, X1 : $i, X2 : $i]:
% 0.58/0.99         (~ (not_familiar @ X0 @ X1)
% 0.58/0.99          | ~ (not_familiar @ X2 @ X1)
% 0.58/0.99          | ~ (not_familiar @ X0 @ X2))),
% 0.58/0.99      inference('cnf', [status(esa)], [zf_stmt_0])).
% 0.58/0.99  thf(zip_derived_cl60, plain,
% 0.58/0.99      (![X0 : $i, X1 : $i, X2 : $i]:
% 0.58/0.99         (~ (after @ X1 @ X0)
% 0.58/0.99          | ~ (person @ X0)
% 0.58/0.99          | ~ (person @ X1)
% 0.58/0.99          |  (familiar @ X1 @ X0)
% 0.58/0.99          | ~ (not_familiar @ X1 @ X2)
% 0.58/0.99          | ~ (not_familiar @ X2 @ X0))),
% 0.58/0.99      inference('sup-', [status(thm)], [zip_derived_cl12, zip_derived_cl14])).
% 0.58/0.99  thf(zip_derived_cl71, plain,
% 0.58/0.99      (![X0 : $i]:
% 0.58/0.99         (~ (not_familiar @ X0 @ five)
% 0.58/0.99          | ~ (not_familiar @ two @ X0)
% 0.58/0.99          |  (familiar @ two @ five)
% 0.58/0.99          | ~ (person @ two)
% 0.58/0.99          | ~ (person @ five))),
% 0.58/0.99      inference('sup-', [status(thm)], [zip_derived_cl38, zip_derived_cl60])).
% 0.58/0.99  thf(person2, axiom, (person @ two)).
% 0.58/0.99  thf(zip_derived_cl1, plain, ( (person @ two)),
% 0.58/0.99      inference('cnf', [status(esa)], [person2])).
% 0.58/0.99  thf(person5, axiom, (person @ five)).
% 0.58/0.99  thf(zip_derived_cl4, plain, ( (person @ five)),
% 0.58/0.99      inference('cnf', [status(esa)], [person5])).
% 0.58/0.99  thf(zip_derived_cl86, plain,
% 0.58/0.99      (![X0 : $i]:
% 0.58/0.99         (~ (not_familiar @ X0 @ five)
% 0.58/0.99          | ~ (not_familiar @ two @ X0)
% 0.58/0.99          |  (familiar @ two @ five))),
% 0.58/0.99      inference('demod', [status(thm)],
% 0.58/0.99                [zip_derived_cl71, zip_derived_cl1, zip_derived_cl4])).
% 0.58/0.99  thf(zip_derived_cl108, plain,
% 0.58/0.99      (![X0 : $i]:
% 0.58/0.99         (~ (after @ X0 @ five)
% 0.58/0.99          | ~ (person @ five)
% 0.58/0.99          | ~ (person @ X0)
% 0.58/0.99          |  (familiar @ X0 @ five)
% 0.58/0.99          |  (familiar @ two @ five)
% 0.58/0.99          | ~ (not_familiar @ two @ X0))),
% 0.58/0.99      inference('sup-', [status(thm)], [zip_derived_cl12, zip_derived_cl86])).
% 0.58/0.99  thf(zip_derived_cl4, plain, ( (person @ five)),
% 0.58/0.99      inference('cnf', [status(esa)], [person5])).
% 0.58/0.99  thf(zip_derived_cl109, plain,
% 0.58/0.99      (![X0 : $i]:
% 0.58/0.99         (~ (after @ X0 @ five)
% 0.58/0.99          | ~ (person @ X0)
% 0.58/0.99          |  (familiar @ X0 @ five)
% 0.58/0.99          |  (familiar @ two @ five)
% 0.58/0.99          | ~ (not_familiar @ two @ X0))),
% 0.58/0.99      inference('demod', [status(thm)], [zip_derived_cl108, zip_derived_cl4])).
% 0.58/0.99  thf(zip_derived_cl355, plain,
% 0.58/0.99      ((~ (not_familiar @ two @ four)
% 0.58/0.99        |  (familiar @ two @ five)
% 0.58/0.99        |  (familiar @ four @ five)
% 0.58/0.99        | ~ (person @ four))),
% 0.58/0.99      inference('sup-', [status(thm)], [zip_derived_cl9, zip_derived_cl109])).
% 0.58/0.99  thf(person4, axiom, (person @ four)).
% 0.58/0.99  thf(zip_derived_cl3, plain, ( (person @ four)),
% 0.58/0.99      inference('cnf', [status(esa)], [person4])).
% 0.58/0.99  thf(zip_derived_cl360, plain,
% 0.58/0.99      ((~ (not_familiar @ two @ four)
% 0.58/0.99        |  (familiar @ two @ five)
% 0.58/0.99        |  (familiar @ four @ five))),
% 0.58/0.99      inference('demod', [status(thm)], [zip_derived_cl355, zip_derived_cl3])).
% 0.58/0.99  thf(zip_derived_cl366, plain,
% 0.58/0.99      ((~ (after @ two @ four)
% 0.58/0.99        | ~ (person @ four)
% 0.58/0.99        | ~ (person @ two)
% 0.58/0.99        |  (familiar @ two @ four)
% 0.58/0.99        |  (familiar @ four @ five)
% 0.58/0.99        |  (familiar @ two @ five))),
% 0.58/0.99      inference('sup-', [status(thm)], [zip_derived_cl12, zip_derived_cl360])).
% 0.58/0.99  thf(zip_derived_cl8, plain, ( (after @ three @ four)),
% 0.58/0.99      inference('cnf', [status(esa)], [order3])).
% 0.58/0.99  thf(zip_derived_cl25, plain,
% 0.58/0.99      (![X0 : $i]: (~ (after @ three @ X0) |  (after @ two @ X0))),
% 0.58/0.99      inference('sup-', [status(thm)], [zip_derived_cl7, zip_derived_cl11])).
% 0.58/0.99  thf(zip_derived_cl32, plain, ( (after @ two @ four)),
% 0.58/0.99      inference('sup-', [status(thm)], [zip_derived_cl8, zip_derived_cl25])).
% 0.58/0.99  thf(zip_derived_cl3, plain, ( (person @ four)),
% 0.58/0.99      inference('cnf', [status(esa)], [person4])).
% 0.58/0.99  thf(zip_derived_cl1, plain, ( (person @ two)),
% 0.58/0.99      inference('cnf', [status(esa)], [person2])).
% 0.58/0.99  thf(zip_derived_cl367, plain,
% 0.58/0.99      (( (familiar @ two @ four)
% 0.58/0.99        |  (familiar @ four @ five)
% 0.58/0.99        |  (familiar @ two @ five))),
% 0.58/0.99      inference('demod', [status(thm)],
% 0.58/0.99                [zip_derived_cl366, zip_derived_cl32, zip_derived_cl3, 
% 0.58/0.99                 zip_derived_cl1])).
% 0.58/0.99  thf(zip_derived_cl12, plain,
% 0.58/0.99      (![X0 : $i, X1 : $i]:
% 0.58/0.99         ( (familiar @ X0 @ X1)
% 0.58/0.99          |  (not_familiar @ X0 @ X1)
% 0.58/0.99          | ~ (person @ X0)
% 0.58/0.99          | ~ (person @ X1)
% 0.58/0.99          | ~ (after @ X0 @ X1))),
% 0.58/0.99      inference('cnf', [status(esa)], [familiar_or_not])).
% 0.58/0.99  thf(order5, axiom, (after @ five @ six)).
% 0.58/0.99  thf(zip_derived_cl10, plain, ( (after @ five @ six)),
% 0.58/0.99      inference('cnf', [status(esa)], [order5])).
% 0.58/0.99  thf(zip_derived_cl12, plain,
% 0.58/0.99      (![X0 : $i, X1 : $i]:
% 0.58/0.99         ( (familiar @ X0 @ X1)
% 0.58/0.99          |  (not_familiar @ X0 @ X1)
% 0.58/0.99          | ~ (person @ X0)
% 0.58/0.99          | ~ (person @ X1)
% 0.58/0.99          | ~ (after @ X0 @ X1))),
% 0.58/0.99      inference('cnf', [status(esa)], [familiar_or_not])).
% 0.58/0.99  thf(zip_derived_cl10, plain, ( (after @ five @ six)),
% 0.58/0.99      inference('cnf', [status(esa)], [order5])).
% 0.58/0.99  thf(zip_derived_cl9, plain, ( (after @ four @ five)),
% 0.58/0.99      inference('cnf', [status(esa)], [order4])).
% 0.58/0.99  thf(zip_derived_cl11, plain,
% 0.58/0.99      (![X0 : $i, X1 : $i, X2 : $i]:
% 0.58/0.99         ( (after @ X0 @ X1) | ~ (after @ X0 @ X2) | ~ (after @ X2 @ X1))),
% 0.58/0.99      inference('cnf', [status(esa)], [transitivity_of_order])).
% 0.58/0.99  thf(zip_derived_cl28, plain,
% 0.58/0.99      (![X0 : $i]: (~ (after @ five @ X0) |  (after @ four @ X0))),
% 0.58/0.99      inference('sup-', [status(thm)], [zip_derived_cl9, zip_derived_cl11])).
% 0.58/0.99  thf(zip_derived_cl42, plain, ( (after @ four @ six)),
% 0.58/0.99      inference('sup-', [status(thm)], [zip_derived_cl10, zip_derived_cl28])).
% 0.58/0.99  thf(zip_derived_cl32, plain, ( (after @ two @ four)),
% 0.58/0.99      inference('sup-', [status(thm)], [zip_derived_cl8, zip_derived_cl25])).
% 0.58/0.99  thf(zip_derived_cl11, plain,
% 0.58/0.99      (![X0 : $i, X1 : $i, X2 : $i]:
% 0.58/0.99         ( (after @ X0 @ X1) | ~ (after @ X0 @ X2) | ~ (after @ X2 @ X1))),
% 0.58/0.99      inference('cnf', [status(esa)], [transitivity_of_order])).
% 0.58/0.99  thf(zip_derived_cl33, plain,
% 0.58/0.99      (![X0 : $i]: (~ (after @ four @ X0) |  (after @ two @ X0))),
% 0.58/0.99      inference('sup-', [status(thm)], [zip_derived_cl32, zip_derived_cl11])).
% 0.58/0.99  thf(zip_derived_cl48, plain, ( (after @ two @ six)),
% 0.58/0.99      inference('sup-', [status(thm)], [zip_derived_cl42, zip_derived_cl33])).
% 0.58/0.99  thf(zip_derived_cl60, plain,
% 0.58/0.99      (![X0 : $i, X1 : $i, X2 : $i]:
% 0.58/0.99         (~ (after @ X1 @ X0)
% 0.58/0.99          | ~ (person @ X0)
% 0.58/0.99          | ~ (person @ X1)
% 0.58/0.99          |  (familiar @ X1 @ X0)
% 0.58/0.99          | ~ (not_familiar @ X1 @ X2)
% 0.58/0.99          | ~ (not_familiar @ X2 @ X0))),
% 0.58/0.99      inference('sup-', [status(thm)], [zip_derived_cl12, zip_derived_cl14])).
% 0.58/0.99  thf(zip_derived_cl72, plain,
% 0.58/0.99      (![X0 : $i]:
% 0.58/0.99         (~ (not_familiar @ X0 @ six)
% 0.58/0.99          | ~ (not_familiar @ two @ X0)
% 0.58/0.99          |  (familiar @ two @ six)
% 0.58/0.99          | ~ (person @ two)
% 0.58/0.99          | ~ (person @ six))),
% 0.58/0.99      inference('sup-', [status(thm)], [zip_derived_cl48, zip_derived_cl60])).
% 0.58/0.99  thf(zip_derived_cl1, plain, ( (person @ two)),
% 0.58/0.99      inference('cnf', [status(esa)], [person2])).
% 0.58/0.99  thf(person6, axiom, (person @ six)).
% 0.58/0.99  thf(zip_derived_cl5, plain, ( (person @ six)),
% 0.58/0.99      inference('cnf', [status(esa)], [person6])).
% 0.58/0.99  thf(zip_derived_cl87, plain,
% 0.58/0.99      (![X0 : $i]:
% 0.58/0.99         (~ (not_familiar @ X0 @ six)
% 0.58/0.99          | ~ (not_familiar @ two @ X0)
% 0.58/0.99          |  (familiar @ two @ six))),
% 0.58/0.99      inference('demod', [status(thm)],
% 0.58/0.99                [zip_derived_cl72, zip_derived_cl1, zip_derived_cl5])).
% 0.58/0.99  thf(zip_derived_cl110, plain,
% 0.58/0.99      (![X0 : $i]:
% 0.58/0.99         (~ (after @ X0 @ six)
% 0.58/0.99          | ~ (person @ six)
% 0.58/0.99          | ~ (person @ X0)
% 0.58/0.99          |  (familiar @ X0 @ six)
% 0.58/0.99          |  (familiar @ two @ six)
% 0.58/0.99          | ~ (not_familiar @ two @ X0))),
% 0.58/0.99      inference('sup-', [status(thm)], [zip_derived_cl12, zip_derived_cl87])).
% 0.58/0.99  thf(zip_derived_cl5, plain, ( (person @ six)),
% 0.58/0.99      inference('cnf', [status(esa)], [person6])).
% 0.58/0.99  thf(zip_derived_cl111, plain,
% 0.58/0.99      (![X0 : $i]:
% 0.58/0.99         (~ (after @ X0 @ six)
% 0.58/0.99          | ~ (person @ X0)
% 0.58/0.99          |  (familiar @ X0 @ six)
% 0.58/0.99          |  (familiar @ two @ six)
% 0.58/0.99          | ~ (not_familiar @ two @ X0))),
% 0.58/0.99      inference('demod', [status(thm)], [zip_derived_cl110, zip_derived_cl5])).
% 0.58/0.99  thf(zip_derived_cl544, plain,
% 0.58/0.99      ((~ (not_familiar @ two @ five)
% 0.58/0.99        |  (familiar @ two @ six)
% 0.58/0.99        |  (familiar @ five @ six)
% 0.58/0.99        | ~ (person @ five))),
% 0.58/0.99      inference('sup-', [status(thm)], [zip_derived_cl10, zip_derived_cl111])).
% 0.58/0.99  thf(zip_derived_cl4, plain, ( (person @ five)),
% 0.58/0.99      inference('cnf', [status(esa)], [person5])).
% 0.58/0.99  thf(zip_derived_cl550, plain,
% 0.58/0.99      ((~ (not_familiar @ two @ five)
% 0.58/0.99        |  (familiar @ two @ six)
% 0.58/0.99        |  (familiar @ five @ six))),
% 0.58/0.99      inference('demod', [status(thm)], [zip_derived_cl544, zip_derived_cl4])).
% 0.58/0.99  thf(zip_derived_cl558, plain,
% 0.58/0.99      ((~ (after @ two @ five)
% 0.58/0.99        | ~ (person @ five)
% 0.58/0.99        | ~ (person @ two)
% 0.58/0.99        |  (familiar @ two @ five)
% 0.58/0.99        |  (familiar @ five @ six)
% 0.58/0.99        |  (familiar @ two @ six))),
% 0.58/0.99      inference('sup-', [status(thm)], [zip_derived_cl12, zip_derived_cl550])).
% 0.58/0.99  thf(zip_derived_cl38, plain, ( (after @ two @ five)),
% 0.58/0.99      inference('sup-', [status(thm)], [zip_derived_cl36, zip_derived_cl25])).
% 0.58/0.99  thf(zip_derived_cl4, plain, ( (person @ five)),
% 0.58/0.99      inference('cnf', [status(esa)], [person5])).
% 0.58/0.99  thf(zip_derived_cl1, plain, ( (person @ two)),
% 0.58/0.99      inference('cnf', [status(esa)], [person2])).
% 0.58/0.99  thf(zip_derived_cl559, plain,
% 0.58/0.99      (( (familiar @ two @ five)
% 0.58/0.99        |  (familiar @ five @ six)
% 0.58/0.99        |  (familiar @ two @ six))),
% 0.58/0.99      inference('demod', [status(thm)],
% 0.58/0.99                [zip_derived_cl558, zip_derived_cl38, zip_derived_cl4, 
% 0.58/0.99                 zip_derived_cl1])).
% 0.58/0.99  thf(zip_derived_cl12, plain,
% 0.58/0.99      (![X0 : $i, X1 : $i]:
% 0.58/0.99         ( (familiar @ X0 @ X1)
% 0.58/0.99          |  (not_familiar @ X0 @ X1)
% 0.58/0.99          | ~ (person @ X0)
% 0.58/0.99          | ~ (person @ X1)
% 0.58/0.99          | ~ (after @ X0 @ X1))),
% 0.58/0.99      inference('cnf', [status(esa)], [familiar_or_not])).
% 0.58/0.99  thf(zip_derived_cl8, plain, ( (after @ three @ four)),
% 0.58/0.99      inference('cnf', [status(esa)], [order3])).
% 0.58/0.99  thf(zip_derived_cl12, plain,
% 0.58/0.99      (![X0 : $i, X1 : $i]:
% 0.58/0.99         ( (familiar @ X0 @ X1)
% 0.58/0.99          |  (not_familiar @ X0 @ X1)
% 0.58/0.99          | ~ (person @ X0)
% 0.58/0.99          | ~ (person @ X1)
% 0.58/0.99          | ~ (after @ X0 @ X1))),
% 0.58/0.99      inference('cnf', [status(esa)], [familiar_or_not])).
% 0.58/0.99  thf(zip_derived_cl32, plain, ( (after @ two @ four)),
% 0.58/0.99      inference('sup-', [status(thm)], [zip_derived_cl8, zip_derived_cl25])).
% 0.58/0.99  thf(order1, axiom, (after @ one @ two)).
% 0.58/0.99  thf(zip_derived_cl6, plain, ( (after @ one @ two)),
% 0.58/0.99      inference('cnf', [status(esa)], [order1])).
% 0.58/0.99  thf(zip_derived_cl11, plain,
% 0.58/0.99      (![X0 : $i, X1 : $i, X2 : $i]:
% 0.58/0.99         ( (after @ X0 @ X1) | ~ (after @ X0 @ X2) | ~ (after @ X2 @ X1))),
% 0.58/0.99      inference('cnf', [status(esa)], [transitivity_of_order])).
% 0.58/0.99  thf(zip_derived_cl24, plain,
% 0.58/0.99      (![X0 : $i]: (~ (after @ two @ X0) |  (after @ one @ X0))),
% 0.58/0.99      inference('sup-', [status(thm)], [zip_derived_cl6, zip_derived_cl11])).
% 0.58/0.99  thf(zip_derived_cl34, plain, ( (after @ one @ four)),
% 0.58/0.99      inference('sup-', [status(thm)], [zip_derived_cl32, zip_derived_cl24])).
% 0.58/0.99  thf(zip_derived_cl60, plain,
% 0.58/0.99      (![X0 : $i, X1 : $i, X2 : $i]:
% 0.58/0.99         (~ (after @ X1 @ X0)
% 0.58/0.99          | ~ (person @ X0)
% 0.58/0.99          | ~ (person @ X1)
% 0.58/0.99          |  (familiar @ X1 @ X0)
% 0.58/0.99          | ~ (not_familiar @ X1 @ X2)
% 0.58/0.99          | ~ (not_familiar @ X2 @ X0))),
% 0.58/0.99      inference('sup-', [status(thm)], [zip_derived_cl12, zip_derived_cl14])).
% 0.58/0.99  thf(zip_derived_cl66, plain,
% 0.58/0.99      (![X0 : $i]:
% 0.58/0.99         (~ (not_familiar @ X0 @ four)
% 0.58/0.99          | ~ (not_familiar @ one @ X0)
% 0.58/0.99          |  (familiar @ one @ four)
% 0.58/0.99          | ~ (person @ one)
% 0.58/0.99          | ~ (person @ four))),
% 0.58/0.99      inference('sup-', [status(thm)], [zip_derived_cl34, zip_derived_cl60])).
% 0.58/0.99  thf(person1, axiom, (person @ one)).
% 0.58/0.99  thf(zip_derived_cl0, plain, ( (person @ one)),
% 0.58/0.99      inference('cnf', [status(esa)], [person1])).
% 0.58/0.99  thf(zip_derived_cl3, plain, ( (person @ four)),
% 0.58/0.99      inference('cnf', [status(esa)], [person4])).
% 0.58/0.99  thf(zip_derived_cl81, plain,
% 0.58/0.99      (![X0 : $i]:
% 0.58/0.99         (~ (not_familiar @ X0 @ four)
% 0.58/0.99          | ~ (not_familiar @ one @ X0)
% 0.58/0.99          |  (familiar @ one @ four))),
% 0.58/0.99      inference('demod', [status(thm)],
% 0.58/0.99                [zip_derived_cl66, zip_derived_cl0, zip_derived_cl3])).
% 0.58/0.99  thf(zip_derived_cl98, plain,
% 0.58/0.99      (![X0 : $i]:
% 0.58/0.99         (~ (after @ X0 @ four)
% 0.58/0.99          | ~ (person @ four)
% 0.58/0.99          | ~ (person @ X0)
% 0.58/0.99          |  (familiar @ X0 @ four)
% 0.58/0.99          |  (familiar @ one @ four)
% 0.58/0.99          | ~ (not_familiar @ one @ X0))),
% 0.58/0.99      inference('sup-', [status(thm)], [zip_derived_cl12, zip_derived_cl81])).
% 0.58/0.99  thf(zip_derived_cl3, plain, ( (person @ four)),
% 0.58/0.99      inference('cnf', [status(esa)], [person4])).
% 0.58/0.99  thf(zip_derived_cl99, plain,
% 0.58/0.99      (![X0 : $i]:
% 0.58/0.99         (~ (after @ X0 @ four)
% 0.58/0.99          | ~ (person @ X0)
% 0.58/0.99          |  (familiar @ X0 @ four)
% 0.58/0.99          |  (familiar @ one @ four)
% 0.58/0.99          | ~ (not_familiar @ one @ X0))),
% 0.58/0.99      inference('demod', [status(thm)], [zip_derived_cl98, zip_derived_cl3])).
% 0.58/0.99  thf(zip_derived_cl143, plain,
% 0.58/0.99      ((~ (not_familiar @ one @ three)
% 0.58/0.99        |  (familiar @ one @ four)
% 0.58/0.99        |  (familiar @ three @ four)
% 0.58/0.99        | ~ (person @ three))),
% 0.58/0.99      inference('sup-', [status(thm)], [zip_derived_cl8, zip_derived_cl99])).
% 0.58/0.99  thf(person3, axiom, (person @ three)).
% 0.58/0.99  thf(zip_derived_cl2, plain, ( (person @ three)),
% 0.58/0.99      inference('cnf', [status(esa)], [person3])).
% 0.58/0.99  thf(zip_derived_cl147, plain,
% 0.58/0.99      ((~ (not_familiar @ one @ three)
% 0.58/0.99        |  (familiar @ one @ four)
% 0.58/0.99        |  (familiar @ three @ four))),
% 0.58/0.99      inference('demod', [status(thm)], [zip_derived_cl143, zip_derived_cl2])).
% 0.58/0.99  thf(zip_derived_cl151, plain,
% 0.58/0.99      ((~ (after @ one @ three)
% 0.58/0.99        | ~ (person @ three)
% 0.58/0.99        | ~ (person @ one)
% 0.58/0.99        |  (familiar @ one @ three)
% 0.58/0.99        |  (familiar @ three @ four)
% 0.58/0.99        |  (familiar @ one @ four))),
% 0.58/0.99      inference('sup-', [status(thm)], [zip_derived_cl12, zip_derived_cl147])).
% 0.58/0.99  thf(zip_derived_cl7, plain, ( (after @ two @ three)),
% 0.58/0.99      inference('cnf', [status(esa)], [order2])).
% 0.58/0.99  thf(zip_derived_cl24, plain,
% 0.58/0.99      (![X0 : $i]: (~ (after @ two @ X0) |  (after @ one @ X0))),
% 0.58/0.99      inference('sup-', [status(thm)], [zip_derived_cl6, zip_derived_cl11])).
% 0.58/0.99  thf(zip_derived_cl26, plain, ( (after @ one @ three)),
% 0.58/0.99      inference('sup-', [status(thm)], [zip_derived_cl7, zip_derived_cl24])).
% 0.58/0.99  thf(zip_derived_cl2, plain, ( (person @ three)),
% 0.58/0.99      inference('cnf', [status(esa)], [person3])).
% 0.58/0.99  thf(zip_derived_cl0, plain, ( (person @ one)),
% 0.58/0.99      inference('cnf', [status(esa)], [person1])).
% 0.58/0.99  thf(zip_derived_cl152, plain,
% 0.58/0.99      (( (familiar @ one @ three)
% 0.58/0.99        |  (familiar @ three @ four)
% 0.58/0.99        |  (familiar @ one @ four))),
% 0.58/0.99      inference('demod', [status(thm)],
% 0.58/0.99                [zip_derived_cl151, zip_derived_cl26, zip_derived_cl2, 
% 0.58/0.99                 zip_derived_cl0])).
% 0.58/0.99  thf(zip_derived_cl12, plain,
% 0.58/0.99      (![X0 : $i, X1 : $i]:
% 0.58/0.99         ( (familiar @ X0 @ X1)
% 0.58/0.99          |  (not_familiar @ X0 @ X1)
% 0.58/0.99          | ~ (person @ X0)
% 0.58/0.99          | ~ (person @ X1)
% 0.58/0.99          | ~ (after @ X0 @ X1))),
% 0.58/0.99      inference('cnf', [status(esa)], [familiar_or_not])).
% 0.58/0.99  thf(zip_derived_cl36, plain, ( (after @ three @ five)),
% 0.58/0.99      inference('sup-', [status(thm)], [zip_derived_cl9, zip_derived_cl27])).
% 0.58/0.99  thf(zip_derived_cl12, plain,
% 0.58/0.99      (![X0 : $i, X1 : $i]:
% 0.58/0.99         ( (familiar @ X0 @ X1)
% 0.58/0.99          |  (not_familiar @ X0 @ X1)
% 0.58/0.99          | ~ (person @ X0)
% 0.58/0.99          | ~ (person @ X1)
% 0.58/0.99          | ~ (after @ X0 @ X1))),
% 0.58/0.99      inference('cnf', [status(esa)], [familiar_or_not])).
% 0.58/0.99  thf(zip_derived_cl38, plain, ( (after @ two @ five)),
% 0.58/0.99      inference('sup-', [status(thm)], [zip_derived_cl36, zip_derived_cl25])).
% 0.58/0.99  thf(zip_derived_cl24, plain,
% 0.58/0.99      (![X0 : $i]: (~ (after @ two @ X0) |  (after @ one @ X0))),
% 0.58/0.99      inference('sup-', [status(thm)], [zip_derived_cl6, zip_derived_cl11])).
% 0.58/0.99  thf(zip_derived_cl40, plain, ( (after @ one @ five)),
% 0.58/0.99      inference('sup-', [status(thm)], [zip_derived_cl38, zip_derived_cl24])).
% 0.58/0.99  thf(zip_derived_cl60, plain,
% 0.58/0.99      (![X0 : $i, X1 : $i, X2 : $i]:
% 0.58/0.99         (~ (after @ X1 @ X0)
% 0.58/0.99          | ~ (person @ X0)
% 0.58/0.99          | ~ (person @ X1)
% 0.58/0.99          |  (familiar @ X1 @ X0)
% 0.58/0.99          | ~ (not_familiar @ X1 @ X2)
% 0.58/0.99          | ~ (not_familiar @ X2 @ X0))),
% 0.58/0.99      inference('sup-', [status(thm)], [zip_derived_cl12, zip_derived_cl14])).
% 0.58/0.99  thf(zip_derived_cl67, plain,
% 0.58/0.99      (![X0 : $i]:
% 0.58/0.99         (~ (not_familiar @ X0 @ five)
% 0.58/0.99          | ~ (not_familiar @ one @ X0)
% 0.58/0.99          |  (familiar @ one @ five)
% 0.58/0.99          | ~ (person @ one)
% 0.58/0.99          | ~ (person @ five))),
% 0.58/0.99      inference('sup-', [status(thm)], [zip_derived_cl40, zip_derived_cl60])).
% 0.58/0.99  thf(zip_derived_cl0, plain, ( (person @ one)),
% 0.58/0.99      inference('cnf', [status(esa)], [person1])).
% 0.58/0.99  thf(zip_derived_cl4, plain, ( (person @ five)),
% 0.58/0.99      inference('cnf', [status(esa)], [person5])).
% 0.58/0.99  thf(zip_derived_cl82, plain,
% 0.58/0.99      (![X0 : $i]:
% 0.58/0.99         (~ (not_familiar @ X0 @ five)
% 0.58/0.99          | ~ (not_familiar @ one @ X0)
% 0.58/0.99          |  (familiar @ one @ five))),
% 0.58/0.99      inference('demod', [status(thm)],
% 0.58/0.99                [zip_derived_cl67, zip_derived_cl0, zip_derived_cl4])).
% 0.58/0.99  thf(zip_derived_cl100, plain,
% 0.58/0.99      (![X0 : $i]:
% 0.58/0.99         (~ (after @ X0 @ five)
% 0.58/0.99          | ~ (person @ five)
% 0.58/0.99          | ~ (person @ X0)
% 0.58/0.99          |  (familiar @ X0 @ five)
% 0.58/0.99          |  (familiar @ one @ five)
% 0.58/0.99          | ~ (not_familiar @ one @ X0))),
% 0.58/0.99      inference('sup-', [status(thm)], [zip_derived_cl12, zip_derived_cl82])).
% 0.58/0.99  thf(zip_derived_cl4, plain, ( (person @ five)),
% 0.58/0.99      inference('cnf', [status(esa)], [person5])).
% 0.58/0.99  thf(zip_derived_cl101, plain,
% 0.58/0.99      (![X0 : $i]:
% 0.58/0.99         (~ (after @ X0 @ five)
% 0.58/0.99          | ~ (person @ X0)
% 0.58/0.99          |  (familiar @ X0 @ five)
% 0.58/0.99          |  (familiar @ one @ five)
% 0.58/0.99          | ~ (not_familiar @ one @ X0))),
% 0.58/0.99      inference('demod', [status(thm)], [zip_derived_cl100, zip_derived_cl4])).
% 0.58/0.99  thf(zip_derived_cl155, plain,
% 0.58/0.99      ((~ (not_familiar @ one @ three)
% 0.58/0.99        |  (familiar @ one @ five)
% 0.58/0.99        |  (familiar @ three @ five)
% 0.58/0.99        | ~ (person @ three))),
% 0.58/0.99      inference('sup-', [status(thm)], [zip_derived_cl36, zip_derived_cl101])).
% 0.58/0.99  thf(zip_derived_cl2, plain, ( (person @ three)),
% 0.58/0.99      inference('cnf', [status(esa)], [person3])).
% 0.58/0.99  thf(zip_derived_cl160, plain,
% 0.58/0.99      ((~ (not_familiar @ one @ three)
% 0.58/0.99        |  (familiar @ one @ five)
% 0.58/0.99        |  (familiar @ three @ five))),
% 0.58/0.99      inference('demod', [status(thm)], [zip_derived_cl155, zip_derived_cl2])).
% 0.58/0.99  thf(zip_derived_cl165, plain,
% 0.58/0.99      ((~ (after @ one @ three)
% 0.58/0.99        | ~ (person @ three)
% 0.58/0.99        | ~ (person @ one)
% 0.58/0.99        |  (familiar @ one @ three)
% 0.58/0.99        |  (familiar @ three @ five)
% 0.58/0.99        |  (familiar @ one @ five))),
% 0.58/0.99      inference('sup-', [status(thm)], [zip_derived_cl12, zip_derived_cl160])).
% 0.58/0.99  thf(zip_derived_cl26, plain, ( (after @ one @ three)),
% 0.58/0.99      inference('sup-', [status(thm)], [zip_derived_cl7, zip_derived_cl24])).
% 0.58/0.99  thf(zip_derived_cl2, plain, ( (person @ three)),
% 0.58/0.99      inference('cnf', [status(esa)], [person3])).
% 0.58/0.99  thf(zip_derived_cl0, plain, ( (person @ one)),
% 0.58/0.99      inference('cnf', [status(esa)], [person1])).
% 0.58/0.99  thf(zip_derived_cl166, plain,
% 0.58/0.99      (( (familiar @ one @ three)
% 0.58/0.99        |  (familiar @ three @ five)
% 0.58/0.99        |  (familiar @ one @ five))),
% 0.58/0.99      inference('demod', [status(thm)],
% 0.58/0.99                [zip_derived_cl165, zip_derived_cl26, zip_derived_cl2, 
% 0.58/0.99                 zip_derived_cl0])).
% 0.58/0.99  thf(three_familiar, conjecture,
% 0.58/0.99    (~( ( ~( familiar @ X1 @ X3 ) ) | ( ~( familiar @ X2 @ X3 ) ) | 
% 0.58/0.99        ( ~( familiar @ X1 @ X2 ) ) ))).
% 0.58/0.99  thf(zf_stmt_1, negated_conjecture,
% 0.58/0.99    (( ~( familiar @ X1 @ X3 ) ) | ( ~( familiar @ X2 @ X3 ) ) | 
% 0.58/0.99     ( ~( familiar @ X1 @ X2 ) )),
% 0.58/0.99    inference('cnf.neg', [status(esa)], [three_familiar])).
% 0.58/0.99  thf(zip_derived_cl13, plain,
% 0.58/0.99      (![X0 : $i, X1 : $i, X2 : $i]:
% 0.58/0.99         (~ (familiar @ X0 @ X1)
% 0.58/0.99          | ~ (familiar @ X2 @ X1)
% 0.58/0.99          | ~ (familiar @ X0 @ X2))),
% 0.58/0.99      inference('cnf', [status(esa)], [zf_stmt_1])).
% 0.58/0.99  thf(zip_derived_cl176, plain,
% 0.58/0.99      (![X0 : $i]:
% 0.58/0.99         ( (familiar @ one @ five)
% 0.58/0.99          |  (familiar @ one @ three)
% 0.58/0.99          | ~ (familiar @ three @ X0)
% 0.58/0.99          | ~ (familiar @ X0 @ five))),
% 0.58/0.99      inference('sup-', [status(thm)], [zip_derived_cl166, zip_derived_cl13])).
% 0.58/0.99  thf(zip_derived_cl202, plain,
% 0.58/0.99      (( (familiar @ one @ four)
% 0.58/0.99        |  (familiar @ one @ three)
% 0.58/0.99        | ~ (familiar @ four @ five)
% 0.58/0.99        |  (familiar @ one @ three)
% 0.58/0.99        |  (familiar @ one @ five))),
% 0.58/0.99      inference('sup-', [status(thm)], [zip_derived_cl152, zip_derived_cl176])).
% 0.58/0.99  thf(zip_derived_cl204, plain,
% 0.58/0.99      (( (familiar @ one @ five)
% 0.58/0.99        | ~ (familiar @ four @ five)
% 0.58/0.99        |  (familiar @ one @ three)
% 0.58/0.99        |  (familiar @ one @ four))),
% 0.58/0.99      inference('simplify', [status(thm)], [zip_derived_cl202])).
% 0.58/0.99  thf(zip_derived_cl12, plain,
% 0.58/0.99      (![X0 : $i, X1 : $i]:
% 0.58/0.99         ( (familiar @ X0 @ X1)
% 0.58/0.99          |  (not_familiar @ X0 @ X1)
% 0.58/0.99          | ~ (person @ X0)
% 0.58/0.99          | ~ (person @ X1)
% 0.58/0.99          | ~ (after @ X0 @ X1))),
% 0.58/0.99      inference('cnf', [status(esa)], [familiar_or_not])).
% 0.58/0.99  thf(zip_derived_cl9, plain, ( (after @ four @ five)),
% 0.58/0.99      inference('cnf', [status(esa)], [order4])).
% 0.58/0.99  thf(zip_derived_cl101, plain,
% 0.58/0.99      (![X0 : $i]:
% 0.58/0.99         (~ (after @ X0 @ five)
% 0.58/0.99          | ~ (person @ X0)
% 0.58/0.99          |  (familiar @ X0 @ five)
% 0.58/0.99          |  (familiar @ one @ five)
% 0.58/0.99          | ~ (not_familiar @ one @ X0))),
% 0.58/0.99      inference('demod', [status(thm)], [zip_derived_cl100, zip_derived_cl4])).
% 0.58/0.99  thf(zip_derived_cl156, plain,
% 0.58/0.99      ((~ (not_familiar @ one @ four)
% 0.58/0.99        |  (familiar @ one @ five)
% 0.58/0.99        |  (familiar @ four @ five)
% 0.58/0.99        | ~ (person @ four))),
% 0.58/0.99      inference('sup-', [status(thm)], [zip_derived_cl9, zip_derived_cl101])).
% 0.58/0.99  thf(zip_derived_cl3, plain, ( (person @ four)),
% 0.58/0.99      inference('cnf', [status(esa)], [person4])).
% 0.58/0.99  thf(zip_derived_cl161, plain,
% 0.58/0.99      ((~ (not_familiar @ one @ four)
% 0.58/0.99        |  (familiar @ one @ five)
% 0.58/0.99        |  (familiar @ four @ five))),
% 0.58/0.99      inference('demod', [status(thm)], [zip_derived_cl156, zip_derived_cl3])).
% 0.58/0.99  thf(zip_derived_cl167, plain,
% 0.58/0.99      ((~ (after @ one @ four)
% 0.58/0.99        | ~ (person @ four)
% 0.58/0.99        | ~ (person @ one)
% 0.58/0.99        |  (familiar @ one @ four)
% 0.58/0.99        |  (familiar @ four @ five)
% 0.58/0.99        |  (familiar @ one @ five))),
% 0.58/0.99      inference('sup-', [status(thm)], [zip_derived_cl12, zip_derived_cl161])).
% 0.58/0.99  thf(zip_derived_cl34, plain, ( (after @ one @ four)),
% 0.58/0.99      inference('sup-', [status(thm)], [zip_derived_cl32, zip_derived_cl24])).
% 0.58/0.99  thf(zip_derived_cl3, plain, ( (person @ four)),
% 0.58/0.99      inference('cnf', [status(esa)], [person4])).
% 0.58/0.99  thf(zip_derived_cl0, plain, ( (person @ one)),
% 0.58/0.99      inference('cnf', [status(esa)], [person1])).
% 0.58/0.99  thf(zip_derived_cl168, plain,
% 0.58/0.99      (( (familiar @ one @ four)
% 0.58/0.99        |  (familiar @ four @ five)
% 0.58/0.99        |  (familiar @ one @ five))),
% 0.58/0.99      inference('demod', [status(thm)],
% 0.58/0.99                [zip_derived_cl167, zip_derived_cl34, zip_derived_cl3, 
% 0.58/0.99                 zip_derived_cl0])).
% 0.58/0.99  thf(zip_derived_cl260, plain,
% 0.58/0.99      (( (familiar @ one @ four)
% 0.58/0.99        |  (familiar @ one @ three)
% 0.58/0.99        |  (familiar @ one @ five))),
% 0.58/0.99      inference('clc', [status(thm)], [zip_derived_cl204, zip_derived_cl168])).
% 0.58/0.99  thf(zip_derived_cl152, plain,
% 0.58/0.99      (( (familiar @ one @ three)
% 0.58/0.99        |  (familiar @ three @ four)
% 0.58/0.99        |  (familiar @ one @ four))),
% 0.58/0.99      inference('demod', [status(thm)],
% 0.58/0.99                [zip_derived_cl151, zip_derived_cl26, zip_derived_cl2, 
% 0.58/0.99                 zip_derived_cl0])).
% 0.58/0.99  thf(zip_derived_cl12, plain,
% 0.58/0.99      (![X0 : $i, X1 : $i]:
% 0.58/0.99         ( (familiar @ X0 @ X1)
% 0.58/0.99          |  (not_familiar @ X0 @ X1)
% 0.58/0.99          | ~ (person @ X0)
% 0.58/0.99          | ~ (person @ X1)
% 0.58/0.99          | ~ (after @ X0 @ X1))),
% 0.58/0.99      inference('cnf', [status(esa)], [familiar_or_not])).
% 0.58/0.99  thf(zip_derived_cl42, plain, ( (after @ four @ six)),
% 0.58/0.99      inference('sup-', [status(thm)], [zip_derived_cl10, zip_derived_cl28])).
% 0.58/0.99  thf(zip_derived_cl27, plain,
% 0.58/0.99      (![X0 : $i]: (~ (after @ four @ X0) |  (after @ three @ X0))),
% 0.58/0.99      inference('sup-', [status(thm)], [zip_derived_cl8, zip_derived_cl11])).
% 0.58/0.99  thf(zip_derived_cl44, plain, ( (after @ three @ six)),
% 0.58/0.99      inference('sup-', [status(thm)], [zip_derived_cl42, zip_derived_cl27])).
% 0.58/0.99  thf(zip_derived_cl12, plain,
% 0.58/0.99      (![X0 : $i, X1 : $i]:
% 0.58/0.99         ( (familiar @ X0 @ X1)
% 0.58/0.99          |  (not_familiar @ X0 @ X1)
% 0.58/0.99          | ~ (person @ X0)
% 0.58/0.99          | ~ (person @ X1)
% 0.58/0.99          | ~ (after @ X0 @ X1))),
% 0.58/0.99      inference('cnf', [status(esa)], [familiar_or_not])).
% 0.58/0.99  thf(zip_derived_cl42, plain, ( (after @ four @ six)),
% 0.58/0.99      inference('sup-', [status(thm)], [zip_derived_cl10, zip_derived_cl28])).
% 0.58/0.99  thf(zip_derived_cl34, plain, ( (after @ one @ four)),
% 0.58/0.99      inference('sup-', [status(thm)], [zip_derived_cl32, zip_derived_cl24])).
% 0.58/0.99  thf(zip_derived_cl11, plain,
% 0.58/0.99      (![X0 : $i, X1 : $i, X2 : $i]:
% 0.58/0.99         ( (after @ X0 @ X1) | ~ (after @ X0 @ X2) | ~ (after @ X2 @ X1))),
% 0.58/0.99      inference('cnf', [status(esa)], [transitivity_of_order])).
% 0.58/0.99  thf(zip_derived_cl35, plain,
% 0.58/0.99      (![X0 : $i]: (~ (after @ four @ X0) |  (after @ one @ X0))),
% 0.58/0.99      inference('sup-', [status(thm)], [zip_derived_cl34, zip_derived_cl11])).
% 0.58/0.99  thf(zip_derived_cl50, plain, ( (after @ one @ six)),
% 0.58/0.99      inference('sup-', [status(thm)], [zip_derived_cl42, zip_derived_cl35])).
% 0.58/0.99  thf(zip_derived_cl60, plain,
% 0.58/0.99      (![X0 : $i, X1 : $i, X2 : $i]:
% 0.58/0.99         (~ (after @ X1 @ X0)
% 0.58/0.99          | ~ (person @ X0)
% 0.58/0.99          | ~ (person @ X1)
% 0.58/0.99          |  (familiar @ X1 @ X0)
% 0.58/0.99          | ~ (not_familiar @ X1 @ X2)
% 0.58/0.99          | ~ (not_familiar @ X2 @ X0))),
% 0.58/0.99      inference('sup-', [status(thm)], [zip_derived_cl12, zip_derived_cl14])).
% 0.58/0.99  thf(zip_derived_cl68, plain,
% 0.58/0.99      (![X0 : $i]:
% 0.58/0.99         (~ (not_familiar @ X0 @ six)
% 0.58/0.99          | ~ (not_familiar @ one @ X0)
% 0.58/0.99          |  (familiar @ one @ six)
% 0.58/0.99          | ~ (person @ one)
% 0.58/0.99          | ~ (person @ six))),
% 0.58/0.99      inference('sup-', [status(thm)], [zip_derived_cl50, zip_derived_cl60])).
% 0.58/0.99  thf(zip_derived_cl0, plain, ( (person @ one)),
% 0.58/0.99      inference('cnf', [status(esa)], [person1])).
% 0.58/0.99  thf(zip_derived_cl5, plain, ( (person @ six)),
% 0.58/0.99      inference('cnf', [status(esa)], [person6])).
% 0.58/0.99  thf(zip_derived_cl83, plain,
% 0.58/0.99      (![X0 : $i]:
% 0.58/0.99         (~ (not_familiar @ X0 @ six)
% 0.58/0.99          | ~ (not_familiar @ one @ X0)
% 0.58/0.99          |  (familiar @ one @ six))),
% 0.58/0.99      inference('demod', [status(thm)],
% 0.58/0.99                [zip_derived_cl68, zip_derived_cl0, zip_derived_cl5])).
% 0.58/0.99  thf(zip_derived_cl102, plain,
% 0.58/0.99      (![X0 : $i]:
% 0.58/0.99         (~ (after @ X0 @ six)
% 0.58/0.99          | ~ (person @ six)
% 0.58/0.99          | ~ (person @ X0)
% 0.58/0.99          |  (familiar @ X0 @ six)
% 0.58/0.99          |  (familiar @ one @ six)
% 0.58/0.99          | ~ (not_familiar @ one @ X0))),
% 0.58/0.99      inference('sup-', [status(thm)], [zip_derived_cl12, zip_derived_cl83])).
% 0.58/0.99  thf(zip_derived_cl5, plain, ( (person @ six)),
% 0.58/0.99      inference('cnf', [status(esa)], [person6])).
% 0.58/0.99  thf(zip_derived_cl103, plain,
% 0.58/0.99      (![X0 : $i]:
% 0.58/0.99         (~ (after @ X0 @ six)
% 0.58/0.99          | ~ (person @ X0)
% 0.58/0.99          |  (familiar @ X0 @ six)
% 0.58/0.99          |  (familiar @ one @ six)
% 0.58/0.99          | ~ (not_familiar @ one @ X0))),
% 0.58/0.99      inference('demod', [status(thm)], [zip_derived_cl102, zip_derived_cl5])).
% 0.58/0.99  thf(zip_derived_cl218, plain,
% 0.58/0.99      ((~ (not_familiar @ one @ three)
% 0.58/0.99        |  (familiar @ one @ six)
% 0.58/0.99        |  (familiar @ three @ six)
% 0.58/0.99        | ~ (person @ three))),
% 0.58/0.99      inference('sup-', [status(thm)], [zip_derived_cl44, zip_derived_cl103])).
% 0.58/0.99  thf(zip_derived_cl2, plain, ( (person @ three)),
% 0.58/0.99      inference('cnf', [status(esa)], [person3])).
% 0.58/0.99  thf(zip_derived_cl224, plain,
% 0.58/0.99      ((~ (not_familiar @ one @ three)
% 0.58/0.99        |  (familiar @ one @ six)
% 0.58/0.99        |  (familiar @ three @ six))),
% 0.58/0.99      inference('demod', [status(thm)], [zip_derived_cl218, zip_derived_cl2])).
% 0.58/0.99  thf(zip_derived_cl230, plain,
% 0.58/0.99      ((~ (after @ one @ three)
% 0.58/0.99        | ~ (person @ three)
% 0.58/0.99        | ~ (person @ one)
% 0.58/0.99        |  (familiar @ one @ three)
% 0.58/0.99        |  (familiar @ three @ six)
% 0.58/0.99        |  (familiar @ one @ six))),
% 0.58/0.99      inference('sup-', [status(thm)], [zip_derived_cl12, zip_derived_cl224])).
% 0.58/0.99  thf(zip_derived_cl26, plain, ( (after @ one @ three)),
% 0.58/0.99      inference('sup-', [status(thm)], [zip_derived_cl7, zip_derived_cl24])).
% 0.58/0.99  thf(zip_derived_cl2, plain, ( (person @ three)),
% 0.58/0.99      inference('cnf', [status(esa)], [person3])).
% 0.58/0.99  thf(zip_derived_cl0, plain, ( (person @ one)),
% 0.58/0.99      inference('cnf', [status(esa)], [person1])).
% 0.58/0.99  thf(zip_derived_cl231, plain,
% 0.58/0.99      (( (familiar @ one @ three)
% 0.58/0.99        |  (familiar @ three @ six)
% 0.58/0.99        |  (familiar @ one @ six))),
% 0.58/0.99      inference('demod', [status(thm)],
% 0.58/0.99                [zip_derived_cl230, zip_derived_cl26, zip_derived_cl2, 
% 0.58/0.99                 zip_derived_cl0])).
% 0.58/0.99  thf(zip_derived_cl13, plain,
% 0.58/0.99      (![X0 : $i, X1 : $i, X2 : $i]:
% 0.58/0.99         (~ (familiar @ X0 @ X1)
% 0.58/0.99          | ~ (familiar @ X2 @ X1)
% 0.58/0.99          | ~ (familiar @ X0 @ X2))),
% 0.58/0.99      inference('cnf', [status(esa)], [zf_stmt_1])).
% 0.58/0.99  thf(zip_derived_cl243, plain,
% 0.58/0.99      (![X0 : $i]:
% 0.58/0.99         ( (familiar @ one @ six)
% 0.58/0.99          |  (familiar @ one @ three)
% 0.58/0.99          | ~ (familiar @ three @ X0)
% 0.58/0.99          | ~ (familiar @ X0 @ six))),
% 0.58/0.99      inference('sup-', [status(thm)], [zip_derived_cl231, zip_derived_cl13])).
% 0.58/0.99  thf(zip_derived_cl274, plain,
% 0.58/0.99      (( (familiar @ one @ four)
% 0.58/0.99        |  (familiar @ one @ three)
% 0.58/0.99        | ~ (familiar @ four @ six)
% 0.58/0.99        |  (familiar @ one @ three)
% 0.58/0.99        |  (familiar @ one @ six))),
% 0.58/0.99      inference('sup-', [status(thm)], [zip_derived_cl152, zip_derived_cl243])).
% 0.58/0.99  thf(zip_derived_cl277, plain,
% 0.58/0.99      (( (familiar @ one @ six)
% 0.58/0.99        | ~ (familiar @ four @ six)
% 0.58/0.99        |  (familiar @ one @ three)
% 0.58/0.99        |  (familiar @ one @ four))),
% 0.58/0.99      inference('simplify', [status(thm)], [zip_derived_cl274])).
% 0.58/1.00  thf(zip_derived_cl12, plain,
% 0.58/1.00      (![X0 : $i, X1 : $i]:
% 0.58/1.00         ( (familiar @ X0 @ X1)
% 0.58/1.00          |  (not_familiar @ X0 @ X1)
% 0.58/1.00          | ~ (person @ X0)
% 0.58/1.00          | ~ (person @ X1)
% 0.58/1.00          | ~ (after @ X0 @ X1))),
% 0.58/1.00      inference('cnf', [status(esa)], [familiar_or_not])).
% 0.58/1.00  thf(zip_derived_cl42, plain, ( (after @ four @ six)),
% 0.58/1.00      inference('sup-', [status(thm)], [zip_derived_cl10, zip_derived_cl28])).
% 0.58/1.00  thf(zip_derived_cl103, plain,
% 0.58/1.00      (![X0 : $i]:
% 0.58/1.00         (~ (after @ X0 @ six)
% 0.58/1.00          | ~ (person @ X0)
% 0.58/1.00          |  (familiar @ X0 @ six)
% 0.58/1.00          |  (familiar @ one @ six)
% 0.58/1.00          | ~ (not_familiar @ one @ X0))),
% 0.58/1.00      inference('demod', [status(thm)], [zip_derived_cl102, zip_derived_cl5])).
% 0.58/1.00  thf(zip_derived_cl219, plain,
% 0.58/1.00      ((~ (not_familiar @ one @ four)
% 0.58/1.00        |  (familiar @ one @ six)
% 0.58/1.00        |  (familiar @ four @ six)
% 0.58/1.00        | ~ (person @ four))),
% 0.58/1.00      inference('sup-', [status(thm)], [zip_derived_cl42, zip_derived_cl103])).
% 0.58/1.00  thf(zip_derived_cl3, plain, ( (person @ four)),
% 0.58/1.00      inference('cnf', [status(esa)], [person4])).
% 0.58/1.00  thf(zip_derived_cl225, plain,
% 0.58/1.00      ((~ (not_familiar @ one @ four)
% 0.58/1.00        |  (familiar @ one @ six)
% 0.58/1.00        |  (familiar @ four @ six))),
% 0.58/1.00      inference('demod', [status(thm)], [zip_derived_cl219, zip_derived_cl3])).
% 0.58/1.00  thf(zip_derived_cl232, plain,
% 0.58/1.00      ((~ (after @ one @ four)
% 0.58/1.00        | ~ (person @ four)
% 0.58/1.00        | ~ (person @ one)
% 0.58/1.00        |  (familiar @ one @ four)
% 0.58/1.00        |  (familiar @ four @ six)
% 0.58/1.00        |  (familiar @ one @ six))),
% 0.58/1.00      inference('sup-', [status(thm)], [zip_derived_cl12, zip_derived_cl225])).
% 0.58/1.00  thf(zip_derived_cl34, plain, ( (after @ one @ four)),
% 0.58/1.00      inference('sup-', [status(thm)], [zip_derived_cl32, zip_derived_cl24])).
% 0.58/1.00  thf(zip_derived_cl3, plain, ( (person @ four)),
% 0.58/1.00      inference('cnf', [status(esa)], [person4])).
% 0.58/1.00  thf(zip_derived_cl0, plain, ( (person @ one)),
% 0.58/1.00      inference('cnf', [status(esa)], [person1])).
% 0.58/1.00  thf(zip_derived_cl233, plain,
% 0.58/1.00      (( (familiar @ one @ four)
% 0.58/1.00        |  (familiar @ four @ six)
% 0.58/1.00        |  (familiar @ one @ six))),
% 0.58/1.00      inference('demod', [status(thm)],
% 0.58/1.00                [zip_derived_cl232, zip_derived_cl34, zip_derived_cl3, 
% 0.58/1.00                 zip_derived_cl0])).
% 0.58/1.00  thf(zip_derived_cl492, plain,
% 0.58/1.00      (( (familiar @ one @ four)
% 0.58/1.00        |  (familiar @ one @ three)
% 0.58/1.00        |  (familiar @ one @ six))),
% 0.58/1.00      inference('clc', [status(thm)], [zip_derived_cl277, zip_derived_cl233])).
% 0.58/1.00  thf(zip_derived_cl13, plain,
% 0.58/1.00      (![X0 : $i, X1 : $i, X2 : $i]:
% 0.58/1.00         (~ (familiar @ X0 @ X1)
% 0.58/1.00          | ~ (familiar @ X2 @ X1)
% 0.58/1.00          | ~ (familiar @ X0 @ X2))),
% 0.58/1.00      inference('cnf', [status(esa)], [zf_stmt_1])).
% 0.58/1.00  thf(zip_derived_cl493, plain,
% 0.58/1.00      (![X0 : $i]:
% 0.58/1.00         ( (familiar @ one @ three)
% 0.58/1.00          |  (familiar @ one @ four)
% 0.58/1.00          | ~ (familiar @ one @ X0)
% 0.58/1.00          | ~ (familiar @ X0 @ six))),
% 0.58/1.00      inference('sup-', [status(thm)], [zip_derived_cl492, zip_derived_cl13])).
% 0.58/1.00  thf(zip_derived_cl525, plain,
% 0.58/1.00      (( (familiar @ one @ three)
% 0.58/1.00        |  (familiar @ one @ four)
% 0.58/1.00        | ~ (familiar @ five @ six)
% 0.58/1.00        |  (familiar @ one @ four)
% 0.58/1.00        |  (familiar @ one @ three))),
% 0.58/1.00      inference('sup-', [status(thm)], [zip_derived_cl260, zip_derived_cl493])).
% 0.58/1.00  thf(zip_derived_cl533, plain,
% 0.58/1.00      ((~ (familiar @ five @ six)
% 0.58/1.00        |  (familiar @ one @ four)
% 0.58/1.00        |  (familiar @ one @ three))),
% 0.58/1.00      inference('simplify', [status(thm)], [zip_derived_cl525])).
% 0.58/1.00  thf(zip_derived_cl578, plain,
% 0.58/1.00      (( (familiar @ two @ six)
% 0.58/1.00        |  (familiar @ two @ five)
% 0.58/1.00        |  (familiar @ one @ three)
% 0.58/1.00        |  (familiar @ one @ four))),
% 0.58/1.00      inference('sup-', [status(thm)], [zip_derived_cl559, zip_derived_cl533])).
% 0.58/1.00  thf(zip_derived_cl12, plain,
% 0.58/1.00      (![X0 : $i, X1 : $i]:
% 0.58/1.00         ( (familiar @ X0 @ X1)
% 0.58/1.00          |  (not_familiar @ X0 @ X1)
% 0.58/1.00          | ~ (person @ X0)
% 0.58/1.00          | ~ (person @ X1)
% 0.58/1.00          | ~ (after @ X0 @ X1))),
% 0.58/1.00      inference('cnf', [status(esa)], [familiar_or_not])).
% 0.58/1.00  thf(zip_derived_cl9, plain, ( (after @ four @ five)),
% 0.58/1.00      inference('cnf', [status(esa)], [order4])).
% 0.58/1.00  thf(zip_derived_cl12, plain,
% 0.58/1.00      (![X0 : $i, X1 : $i]:
% 0.58/1.00         ( (familiar @ X0 @ X1)
% 0.58/1.00          |  (not_familiar @ X0 @ X1)
% 0.58/1.00          | ~ (person @ X0)
% 0.58/1.00          | ~ (person @ X1)
% 0.58/1.00          | ~ (after @ X0 @ X1))),
% 0.58/1.00      inference('cnf', [status(esa)], [familiar_or_not])).
% 0.58/1.00  thf(zip_derived_cl36, plain, ( (after @ three @ five)),
% 0.58/1.00      inference('sup-', [status(thm)], [zip_derived_cl9, zip_derived_cl27])).
% 0.58/1.00  thf(zip_derived_cl60, plain,
% 0.58/1.00      (![X0 : $i, X1 : $i, X2 : $i]:
% 0.58/1.00         (~ (after @ X1 @ X0)
% 0.58/1.00          | ~ (person @ X0)
% 0.58/1.00          | ~ (person @ X1)
% 0.58/1.00          |  (familiar @ X1 @ X0)
% 0.58/1.00          | ~ (not_familiar @ X1 @ X2)
% 0.58/1.00          | ~ (not_familiar @ X2 @ X0))),
% 0.58/1.00      inference('sup-', [status(thm)], [zip_derived_cl12, zip_derived_cl14])).
% 0.58/1.00  thf(zip_derived_cl74, plain,
% 0.58/1.00      (![X0 : $i]:
% 0.58/1.00         (~ (not_familiar @ X0 @ five)
% 0.58/1.00          | ~ (not_familiar @ three @ X0)
% 0.58/1.00          |  (familiar @ three @ five)
% 0.58/1.00          | ~ (person @ three)
% 0.58/1.00          | ~ (person @ five))),
% 0.58/1.00      inference('sup-', [status(thm)], [zip_derived_cl36, zip_derived_cl60])).
% 0.58/1.00  thf(zip_derived_cl2, plain, ( (person @ three)),
% 0.58/1.00      inference('cnf', [status(esa)], [person3])).
% 0.58/1.00  thf(zip_derived_cl4, plain, ( (person @ five)),
% 0.58/1.00      inference('cnf', [status(esa)], [person5])).
% 0.58/1.00  thf(zip_derived_cl89, plain,
% 0.58/1.00      (![X0 : $i]:
% 0.58/1.00         (~ (not_familiar @ X0 @ five)
% 0.58/1.00          | ~ (not_familiar @ three @ X0)
% 0.58/1.00          |  (familiar @ three @ five))),
% 0.58/1.00      inference('demod', [status(thm)],
% 0.58/1.00                [zip_derived_cl74, zip_derived_cl2, zip_derived_cl4])).
% 0.58/1.00  thf(zip_derived_cl114, plain,
% 0.58/1.00      (![X0 : $i]:
% 0.58/1.00         (~ (after @ X0 @ five)
% 0.58/1.00          | ~ (person @ five)
% 0.58/1.00          | ~ (person @ X0)
% 0.58/1.00          |  (familiar @ X0 @ five)
% 0.58/1.00          |  (familiar @ three @ five)
% 0.58/1.00          | ~ (not_familiar @ three @ X0))),
% 0.58/1.00      inference('sup-', [status(thm)], [zip_derived_cl12, zip_derived_cl89])).
% 0.58/1.00  thf(zip_derived_cl4, plain, ( (person @ five)),
% 0.58/1.00      inference('cnf', [status(esa)], [person5])).
% 0.58/1.00  thf(zip_derived_cl115, plain,
% 0.58/1.00      (![X0 : $i]:
% 0.58/1.00         (~ (after @ X0 @ five)
% 0.58/1.00          | ~ (person @ X0)
% 0.58/1.00          |  (familiar @ X0 @ five)
% 0.58/1.00          |  (familiar @ three @ five)
% 0.58/1.00          | ~ (not_familiar @ three @ X0))),
% 0.58/1.00      inference('demod', [status(thm)], [zip_derived_cl114, zip_derived_cl4])).
% 0.58/1.00  thf(zip_derived_cl736, plain,
% 0.58/1.00      ((~ (not_familiar @ three @ four)
% 0.58/1.00        |  (familiar @ three @ five)
% 0.58/1.00        |  (familiar @ four @ five)
% 0.58/1.00        | ~ (person @ four))),
% 0.58/1.00      inference('sup-', [status(thm)], [zip_derived_cl9, zip_derived_cl115])).
% 0.58/1.00  thf(zip_derived_cl3, plain, ( (person @ four)),
% 0.58/1.00      inference('cnf', [status(esa)], [person4])).
% 0.58/1.00  thf(zip_derived_cl741, plain,
% 0.58/1.00      ((~ (not_familiar @ three @ four)
% 0.58/1.00        |  (familiar @ three @ five)
% 0.58/1.00        |  (familiar @ four @ five))),
% 0.58/1.00      inference('demod', [status(thm)], [zip_derived_cl736, zip_derived_cl3])).
% 0.58/1.00  thf(zip_derived_cl747, plain,
% 0.58/1.00      ((~ (after @ three @ four)
% 0.58/1.00        | ~ (person @ four)
% 0.58/1.00        | ~ (person @ three)
% 0.58/1.00        |  (familiar @ three @ four)
% 0.58/1.00        |  (familiar @ four @ five)
% 0.58/1.00        |  (familiar @ three @ five))),
% 0.58/1.00      inference('sup-', [status(thm)], [zip_derived_cl12, zip_derived_cl741])).
% 0.58/1.00  thf(zip_derived_cl8, plain, ( (after @ three @ four)),
% 0.58/1.00      inference('cnf', [status(esa)], [order3])).
% 0.58/1.00  thf(zip_derived_cl3, plain, ( (person @ four)),
% 0.58/1.00      inference('cnf', [status(esa)], [person4])).
% 0.58/1.00  thf(zip_derived_cl2, plain, ( (person @ three)),
% 0.58/1.00      inference('cnf', [status(esa)], [person3])).
% 0.58/1.00  thf(zip_derived_cl748, plain,
% 0.58/1.00      (( (familiar @ three @ four)
% 0.58/1.00        |  (familiar @ four @ five)
% 0.58/1.00        |  (familiar @ three @ five))),
% 0.58/1.00      inference('demod', [status(thm)],
% 0.58/1.00                [zip_derived_cl747, zip_derived_cl8, zip_derived_cl3, 
% 0.58/1.00                 zip_derived_cl2])).
% 0.58/1.00  thf(zip_derived_cl12, plain,
% 0.58/1.00      (![X0 : $i, X1 : $i]:
% 0.58/1.00         ( (familiar @ X0 @ X1)
% 0.58/1.00          |  (not_familiar @ X0 @ X1)
% 0.58/1.00          | ~ (person @ X0)
% 0.58/1.00          | ~ (person @ X1)
% 0.58/1.00          | ~ (after @ X0 @ X1))),
% 0.58/1.00      inference('cnf', [status(esa)], [familiar_or_not])).
% 0.58/1.00  thf(zip_derived_cl10, plain, ( (after @ five @ six)),
% 0.58/1.00      inference('cnf', [status(esa)], [order5])).
% 0.58/1.00  thf(zip_derived_cl12, plain,
% 0.58/1.00      (![X0 : $i, X1 : $i]:
% 0.58/1.00         ( (familiar @ X0 @ X1)
% 0.58/1.00          |  (not_familiar @ X0 @ X1)
% 0.58/1.00          | ~ (person @ X0)
% 0.58/1.00          | ~ (person @ X1)
% 0.58/1.00          | ~ (after @ X0 @ X1))),
% 0.58/1.00      inference('cnf', [status(esa)], [familiar_or_not])).
% 0.58/1.00  thf(zip_derived_cl44, plain, ( (after @ three @ six)),
% 0.58/1.00      inference('sup-', [status(thm)], [zip_derived_cl42, zip_derived_cl27])).
% 0.58/1.00  thf(zip_derived_cl60, plain,
% 0.58/1.00      (![X0 : $i, X1 : $i, X2 : $i]:
% 0.58/1.00         (~ (after @ X1 @ X0)
% 0.58/1.00          | ~ (person @ X0)
% 0.58/1.00          | ~ (person @ X1)
% 0.58/1.00          |  (familiar @ X1 @ X0)
% 0.58/1.00          | ~ (not_familiar @ X1 @ X2)
% 0.58/1.00          | ~ (not_familiar @ X2 @ X0))),
% 0.58/1.00      inference('sup-', [status(thm)], [zip_derived_cl12, zip_derived_cl14])).
% 0.58/1.00  thf(zip_derived_cl75, plain,
% 0.58/1.00      (![X0 : $i]:
% 0.58/1.00         (~ (not_familiar @ X0 @ six)
% 0.58/1.00          | ~ (not_familiar @ three @ X0)
% 0.58/1.00          |  (familiar @ three @ six)
% 0.58/1.00          | ~ (person @ three)
% 0.58/1.00          | ~ (person @ six))),
% 0.58/1.00      inference('sup-', [status(thm)], [zip_derived_cl44, zip_derived_cl60])).
% 0.58/1.00  thf(zip_derived_cl2, plain, ( (person @ three)),
% 0.58/1.00      inference('cnf', [status(esa)], [person3])).
% 0.58/1.00  thf(zip_derived_cl5, plain, ( (person @ six)),
% 0.58/1.00      inference('cnf', [status(esa)], [person6])).
% 0.58/1.00  thf(zip_derived_cl90, plain,
% 0.58/1.00      (![X0 : $i]:
% 0.58/1.00         (~ (not_familiar @ X0 @ six)
% 0.58/1.00          | ~ (not_familiar @ three @ X0)
% 0.58/1.00          |  (familiar @ three @ six))),
% 0.58/1.00      inference('demod', [status(thm)],
% 0.58/1.00                [zip_derived_cl75, zip_derived_cl2, zip_derived_cl5])).
% 0.58/1.00  thf(zip_derived_cl116, plain,
% 0.58/1.00      (![X0 : $i]:
% 0.58/1.00         (~ (after @ X0 @ six)
% 0.58/1.00          | ~ (person @ six)
% 0.58/1.00          | ~ (person @ X0)
% 0.58/1.00          |  (familiar @ X0 @ six)
% 0.58/1.00          |  (familiar @ three @ six)
% 0.58/1.00          | ~ (not_familiar @ three @ X0))),
% 0.58/1.00      inference('sup-', [status(thm)], [zip_derived_cl12, zip_derived_cl90])).
% 0.58/1.00  thf(zip_derived_cl5, plain, ( (person @ six)),
% 0.58/1.00      inference('cnf', [status(esa)], [person6])).
% 0.58/1.00  thf(zip_derived_cl117, plain,
% 0.58/1.00      (![X0 : $i]:
% 0.58/1.00         (~ (after @ X0 @ six)
% 0.58/1.00          | ~ (person @ X0)
% 0.58/1.00          |  (familiar @ X0 @ six)
% 0.58/1.00          |  (familiar @ three @ six)
% 0.58/1.00          | ~ (not_familiar @ three @ X0))),
% 0.58/1.00      inference('demod', [status(thm)], [zip_derived_cl116, zip_derived_cl5])).
% 0.58/1.00  thf(zip_derived_cl753, plain,
% 0.58/1.00      ((~ (not_familiar @ three @ five)
% 0.58/1.00        |  (familiar @ three @ six)
% 0.58/1.00        |  (familiar @ five @ six)
% 0.58/1.00        | ~ (person @ five))),
% 0.58/1.00      inference('sup-', [status(thm)], [zip_derived_cl10, zip_derived_cl117])).
% 0.58/1.00  thf(zip_derived_cl4, plain, ( (person @ five)),
% 0.58/1.00      inference('cnf', [status(esa)], [person5])).
% 0.58/1.00  thf(zip_derived_cl759, plain,
% 0.58/1.00      ((~ (not_familiar @ three @ five)
% 0.58/1.00        |  (familiar @ three @ six)
% 0.58/1.00        |  (familiar @ five @ six))),
% 0.58/1.00      inference('demod', [status(thm)], [zip_derived_cl753, zip_derived_cl4])).
% 0.58/1.00  thf(zip_derived_cl767, plain,
% 0.58/1.00      ((~ (after @ three @ five)
% 0.58/1.00        | ~ (person @ five)
% 0.58/1.00        | ~ (person @ three)
% 0.58/1.00        |  (familiar @ three @ five)
% 0.58/1.00        |  (familiar @ five @ six)
% 0.58/1.00        |  (familiar @ three @ six))),
% 0.58/1.00      inference('sup-', [status(thm)], [zip_derived_cl12, zip_derived_cl759])).
% 0.58/1.00  thf(zip_derived_cl36, plain, ( (after @ three @ five)),
% 0.58/1.00      inference('sup-', [status(thm)], [zip_derived_cl9, zip_derived_cl27])).
% 0.58/1.00  thf(zip_derived_cl4, plain, ( (person @ five)),
% 0.58/1.00      inference('cnf', [status(esa)], [person5])).
% 0.58/1.00  thf(zip_derived_cl2, plain, ( (person @ three)),
% 0.58/1.00      inference('cnf', [status(esa)], [person3])).
% 0.58/1.00  thf(zip_derived_cl768, plain,
% 0.58/1.00      (( (familiar @ three @ five)
% 0.58/1.00        |  (familiar @ five @ six)
% 0.58/1.00        |  (familiar @ three @ six))),
% 0.58/1.00      inference('demod', [status(thm)],
% 0.58/1.00                [zip_derived_cl767, zip_derived_cl36, zip_derived_cl4, 
% 0.58/1.00                 zip_derived_cl2])).
% 0.58/1.00  thf(zip_derived_cl12, plain,
% 0.58/1.00      (![X0 : $i, X1 : $i]:
% 0.58/1.00         ( (familiar @ X0 @ X1)
% 0.58/1.00          |  (not_familiar @ X0 @ X1)
% 0.58/1.00          | ~ (person @ X0)
% 0.58/1.00          | ~ (person @ X1)
% 0.58/1.00          | ~ (after @ X0 @ X1))),
% 0.58/1.00      inference('cnf', [status(esa)], [familiar_or_not])).
% 0.58/1.00  thf(zip_derived_cl32, plain, ( (after @ two @ four)),
% 0.58/1.00      inference('sup-', [status(thm)], [zip_derived_cl8, zip_derived_cl25])).
% 0.58/1.00  thf(zip_derived_cl99, plain,
% 0.58/1.00      (![X0 : $i]:
% 0.58/1.00         (~ (after @ X0 @ four)
% 0.58/1.00          | ~ (person @ X0)
% 0.58/1.00          |  (familiar @ X0 @ four)
% 0.58/1.00          |  (familiar @ one @ four)
% 0.58/1.00          | ~ (not_familiar @ one @ X0))),
% 0.58/1.00      inference('demod', [status(thm)], [zip_derived_cl98, zip_derived_cl3])).
% 0.58/1.00  thf(zip_derived_cl142, plain,
% 0.58/1.00      ((~ (not_familiar @ one @ two)
% 0.58/1.00        |  (familiar @ one @ four)
% 0.58/1.00        |  (familiar @ two @ four)
% 0.58/1.00        | ~ (person @ two))),
% 0.58/1.00      inference('sup-', [status(thm)], [zip_derived_cl32, zip_derived_cl99])).
% 0.58/1.00  thf(zip_derived_cl1, plain, ( (person @ two)),
% 0.58/1.00      inference('cnf', [status(esa)], [person2])).
% 0.58/1.00  thf(zip_derived_cl146, plain,
% 0.58/1.00      ((~ (not_familiar @ one @ two)
% 0.58/1.00        |  (familiar @ one @ four)
% 0.58/1.00        |  (familiar @ two @ four))),
% 0.58/1.00      inference('demod', [status(thm)], [zip_derived_cl142, zip_derived_cl1])).
% 0.58/1.00  thf(zip_derived_cl149, plain,
% 0.58/1.00      ((~ (after @ one @ two)
% 0.58/1.00        | ~ (person @ two)
% 0.58/1.00        | ~ (person @ one)
% 0.58/1.00        |  (familiar @ one @ two)
% 0.58/1.00        |  (familiar @ two @ four)
% 0.58/1.00        |  (familiar @ one @ four))),
% 0.58/1.00      inference('sup-', [status(thm)], [zip_derived_cl12, zip_derived_cl146])).
% 0.58/1.00  thf(zip_derived_cl6, plain, ( (after @ one @ two)),
% 0.58/1.00      inference('cnf', [status(esa)], [order1])).
% 0.58/1.00  thf(zip_derived_cl1, plain, ( (person @ two)),
% 0.58/1.00      inference('cnf', [status(esa)], [person2])).
% 0.58/1.00  thf(zip_derived_cl0, plain, ( (person @ one)),
% 0.58/1.00      inference('cnf', [status(esa)], [person1])).
% 0.58/1.00  thf(zip_derived_cl150, plain,
% 0.58/1.00      (( (familiar @ one @ two)
% 0.58/1.00        |  (familiar @ two @ four)
% 0.58/1.00        |  (familiar @ one @ four))),
% 0.58/1.00      inference('demod', [status(thm)],
% 0.58/1.00                [zip_derived_cl149, zip_derived_cl6, zip_derived_cl1, 
% 0.58/1.00                 zip_derived_cl0])).
% 0.58/1.00  thf(zip_derived_cl12, plain,
% 0.58/1.00      (![X0 : $i, X1 : $i]:
% 0.58/1.00         ( (familiar @ X0 @ X1)
% 0.58/1.00          |  (not_familiar @ X0 @ X1)
% 0.58/1.00          | ~ (person @ X0)
% 0.58/1.00          | ~ (person @ X1)
% 0.58/1.00          | ~ (after @ X0 @ X1))),
% 0.58/1.00      inference('cnf', [status(esa)], [familiar_or_not])).
% 0.58/1.00  thf(zip_derived_cl38, plain, ( (after @ two @ five)),
% 0.58/1.00      inference('sup-', [status(thm)], [zip_derived_cl36, zip_derived_cl25])).
% 0.58/1.00  thf(zip_derived_cl101, plain,
% 0.58/1.00      (![X0 : $i]:
% 0.58/1.00         (~ (after @ X0 @ five)
% 0.58/1.00          | ~ (person @ X0)
% 0.58/1.00          |  (familiar @ X0 @ five)
% 0.58/1.00          |  (familiar @ one @ five)
% 0.58/1.00          | ~ (not_familiar @ one @ X0))),
% 0.58/1.00      inference('demod', [status(thm)], [zip_derived_cl100, zip_derived_cl4])).
% 0.58/1.00  thf(zip_derived_cl154, plain,
% 0.58/1.00      ((~ (not_familiar @ one @ two)
% 0.58/1.00        |  (familiar @ one @ five)
% 0.58/1.00        |  (familiar @ two @ five)
% 0.58/1.00        | ~ (person @ two))),
% 0.58/1.00      inference('sup-', [status(thm)], [zip_derived_cl38, zip_derived_cl101])).
% 0.58/1.00  thf(zip_derived_cl1, plain, ( (person @ two)),
% 0.58/1.00      inference('cnf', [status(esa)], [person2])).
% 0.58/1.00  thf(zip_derived_cl159, plain,
% 0.58/1.00      ((~ (not_familiar @ one @ two)
% 0.58/1.00        |  (familiar @ one @ five)
% 0.58/1.00        |  (familiar @ two @ five))),
% 0.58/1.00      inference('demod', [status(thm)], [zip_derived_cl154, zip_derived_cl1])).
% 0.58/1.00  thf(zip_derived_cl163, plain,
% 0.58/1.00      ((~ (after @ one @ two)
% 0.58/1.00        | ~ (person @ two)
% 0.58/1.00        | ~ (person @ one)
% 0.58/1.00        |  (familiar @ one @ two)
% 0.58/1.00        |  (familiar @ two @ five)
% 0.58/1.00        |  (familiar @ one @ five))),
% 0.58/1.00      inference('sup-', [status(thm)], [zip_derived_cl12, zip_derived_cl159])).
% 0.58/1.00  thf(zip_derived_cl6, plain, ( (after @ one @ two)),
% 0.58/1.00      inference('cnf', [status(esa)], [order1])).
% 0.58/1.00  thf(zip_derived_cl1, plain, ( (person @ two)),
% 0.58/1.00      inference('cnf', [status(esa)], [person2])).
% 0.58/1.00  thf(zip_derived_cl0, plain, ( (person @ one)),
% 0.58/1.00      inference('cnf', [status(esa)], [person1])).
% 0.58/1.00  thf(zip_derived_cl164, plain,
% 0.58/1.00      (( (familiar @ one @ two)
% 0.58/1.00        |  (familiar @ two @ five)
% 0.58/1.00        |  (familiar @ one @ five))),
% 0.58/1.00      inference('demod', [status(thm)],
% 0.58/1.00                [zip_derived_cl163, zip_derived_cl6, zip_derived_cl1, 
% 0.58/1.00                 zip_derived_cl0])).
% 0.58/1.00  thf(zip_derived_cl13, plain,
% 0.58/1.00      (![X0 : $i, X1 : $i, X2 : $i]:
% 0.58/1.00         (~ (familiar @ X0 @ X1)
% 0.58/1.00          | ~ (familiar @ X2 @ X1)
% 0.58/1.00          | ~ (familiar @ X0 @ X2))),
% 0.58/1.00      inference('cnf', [status(esa)], [zf_stmt_1])).
% 0.58/1.00  thf(zip_derived_cl173, plain,
% 0.58/1.00      (![X0 : $i]:
% 0.58/1.00         ( (familiar @ one @ five)
% 0.58/1.00          |  (familiar @ one @ two)
% 0.58/1.00          | ~ (familiar @ two @ X0)
% 0.58/1.00          | ~ (familiar @ X0 @ five))),
% 0.58/1.00      inference('sup-', [status(thm)], [zip_derived_cl164, zip_derived_cl13])).
% 0.58/1.00  thf(zip_derived_cl195, plain,
% 0.58/1.00      (( (familiar @ one @ four)
% 0.58/1.00        |  (familiar @ one @ two)
% 0.58/1.00        | ~ (familiar @ four @ five)
% 0.58/1.00        |  (familiar @ one @ two)
% 0.58/1.00        |  (familiar @ one @ five))),
% 0.58/1.00      inference('sup-', [status(thm)], [zip_derived_cl150, zip_derived_cl173])).
% 0.58/1.00  thf(zip_derived_cl198, plain,
% 0.58/1.00      (( (familiar @ one @ five)
% 0.58/1.00        | ~ (familiar @ four @ five)
% 0.58/1.00        |  (familiar @ one @ two)
% 0.58/1.00        |  (familiar @ one @ four))),
% 0.58/1.00      inference('simplify', [status(thm)], [zip_derived_cl195])).
% 0.58/1.00  thf(zip_derived_cl168, plain,
% 0.58/1.00      (( (familiar @ one @ four)
% 0.58/1.00        |  (familiar @ four @ five)
% 0.58/1.00        |  (familiar @ one @ five))),
% 0.58/1.00      inference('demod', [status(thm)],
% 0.58/1.00                [zip_derived_cl167, zip_derived_cl34, zip_derived_cl3, 
% 0.58/1.00                 zip_derived_cl0])).
% 0.58/1.00  thf(zip_derived_cl256, plain,
% 0.58/1.00      (( (familiar @ one @ four)
% 0.58/1.00        |  (familiar @ one @ two)
% 0.58/1.00        |  (familiar @ one @ five))),
% 0.58/1.00      inference('clc', [status(thm)], [zip_derived_cl198, zip_derived_cl168])).
% 0.58/1.00  thf(zip_derived_cl150, plain,
% 0.58/1.00      (( (familiar @ one @ two)
% 0.58/1.00        |  (familiar @ two @ four)
% 0.58/1.00        |  (familiar @ one @ four))),
% 0.58/1.00      inference('demod', [status(thm)],
% 0.58/1.00                [zip_derived_cl149, zip_derived_cl6, zip_derived_cl1, 
% 0.58/1.00                 zip_derived_cl0])).
% 0.58/1.00  thf(zip_derived_cl12, plain,
% 0.58/1.00      (![X0 : $i, X1 : $i]:
% 0.58/1.00         ( (familiar @ X0 @ X1)
% 0.58/1.00          |  (not_familiar @ X0 @ X1)
% 0.58/1.00          | ~ (person @ X0)
% 0.58/1.00          | ~ (person @ X1)
% 0.58/1.00          | ~ (after @ X0 @ X1))),
% 0.58/1.00      inference('cnf', [status(esa)], [familiar_or_not])).
% 0.58/1.00  thf(zip_derived_cl48, plain, ( (after @ two @ six)),
% 0.58/1.00      inference('sup-', [status(thm)], [zip_derived_cl42, zip_derived_cl33])).
% 0.58/1.00  thf(zip_derived_cl103, plain,
% 0.58/1.00      (![X0 : $i]:
% 0.58/1.00         (~ (after @ X0 @ six)
% 0.58/1.00          | ~ (person @ X0)
% 0.58/1.00          |  (familiar @ X0 @ six)
% 0.58/1.00          |  (familiar @ one @ six)
% 0.58/1.00          | ~ (not_familiar @ one @ X0))),
% 0.58/1.00      inference('demod', [status(thm)], [zip_derived_cl102, zip_derived_cl5])).
% 0.58/1.00  thf(zip_derived_cl217, plain,
% 0.58/1.00      ((~ (not_familiar @ one @ two)
% 0.58/1.00        |  (familiar @ one @ six)
% 0.58/1.00        |  (familiar @ two @ six)
% 0.58/1.00        | ~ (person @ two))),
% 0.58/1.00      inference('sup-', [status(thm)], [zip_derived_cl48, zip_derived_cl103])).
% 0.58/1.00  thf(zip_derived_cl1, plain, ( (person @ two)),
% 0.58/1.00      inference('cnf', [status(esa)], [person2])).
% 0.58/1.00  thf(zip_derived_cl223, plain,
% 0.58/1.00      ((~ (not_familiar @ one @ two)
% 0.58/1.00        |  (familiar @ one @ six)
% 0.58/1.00        |  (familiar @ two @ six))),
% 0.58/1.00      inference('demod', [status(thm)], [zip_derived_cl217, zip_derived_cl1])).
% 0.58/1.00  thf(zip_derived_cl228, plain,
% 0.58/1.00      ((~ (after @ one @ two)
% 0.58/1.00        | ~ (person @ two)
% 0.58/1.00        | ~ (person @ one)
% 0.58/1.00        |  (familiar @ one @ two)
% 0.58/1.00        |  (familiar @ two @ six)
% 0.58/1.00        |  (familiar @ one @ six))),
% 0.58/1.00      inference('sup-', [status(thm)], [zip_derived_cl12, zip_derived_cl223])).
% 0.58/1.00  thf(zip_derived_cl6, plain, ( (after @ one @ two)),
% 0.58/1.00      inference('cnf', [status(esa)], [order1])).
% 0.58/1.00  thf(zip_derived_cl1, plain, ( (person @ two)),
% 0.58/1.00      inference('cnf', [status(esa)], [person2])).
% 0.58/1.00  thf(zip_derived_cl0, plain, ( (person @ one)),
% 0.58/1.00      inference('cnf', [status(esa)], [person1])).
% 0.58/1.00  thf(zip_derived_cl229, plain,
% 0.58/1.00      (( (familiar @ one @ two)
% 0.58/1.00        |  (familiar @ two @ six)
% 0.58/1.00        |  (familiar @ one @ six))),
% 0.58/1.00      inference('demod', [status(thm)],
% 0.58/1.00                [zip_derived_cl228, zip_derived_cl6, zip_derived_cl1, 
% 0.58/1.00                 zip_derived_cl0])).
% 0.58/1.00  thf(zip_derived_cl13, plain,
% 0.58/1.00      (![X0 : $i, X1 : $i, X2 : $i]:
% 0.58/1.00         (~ (familiar @ X0 @ X1)
% 0.58/1.00          | ~ (familiar @ X2 @ X1)
% 0.58/1.00          | ~ (familiar @ X0 @ X2))),
% 0.58/1.00      inference('cnf', [status(esa)], [zf_stmt_1])).
% 0.58/1.00  thf(zip_derived_cl236, plain,
% 0.58/1.00      (![X0 : $i]:
% 0.58/1.00         ( (familiar @ one @ six)
% 0.58/1.00          |  (familiar @ one @ two)
% 0.58/1.00          | ~ (familiar @ two @ X0)
% 0.58/1.00          | ~ (familiar @ X0 @ six))),
% 0.58/1.00      inference('sup-', [status(thm)], [zip_derived_cl229, zip_derived_cl13])).
% 0.58/1.00  thf(zip_derived_cl265, plain,
% 0.58/1.00      (( (familiar @ one @ four)
% 0.58/1.00        |  (familiar @ one @ two)
% 0.58/1.00        | ~ (familiar @ four @ six)
% 0.58/1.00        |  (familiar @ one @ two)
% 0.58/1.00        |  (familiar @ one @ six))),
% 0.58/1.00      inference('sup-', [status(thm)], [zip_derived_cl150, zip_derived_cl236])).
% 0.58/1.00  thf(zip_derived_cl269, plain,
% 0.58/1.00      (( (familiar @ one @ six)
% 0.58/1.00        | ~ (familiar @ four @ six)
% 0.58/1.00        |  (familiar @ one @ two)
% 0.58/1.00        |  (familiar @ one @ four))),
% 0.58/1.00      inference('simplify', [status(thm)], [zip_derived_cl265])).
% 0.58/1.00  thf(zip_derived_cl233, plain,
% 0.58/1.00      (( (familiar @ one @ four)
% 0.58/1.00        |  (familiar @ four @ six)
% 0.58/1.00        |  (familiar @ one @ six))),
% 0.58/1.00      inference('demod', [status(thm)],
% 0.58/1.00                [zip_derived_cl232, zip_derived_cl34, zip_derived_cl3, 
% 0.58/1.00                 zip_derived_cl0])).
% 0.58/1.00  thf(zip_derived_cl445, plain,
% 0.58/1.00      (( (familiar @ one @ four)
% 0.58/1.00        |  (familiar @ one @ two)
% 0.58/1.00        |  (familiar @ one @ six))),
% 0.58/1.00      inference('clc', [status(thm)], [zip_derived_cl269, zip_derived_cl233])).
% 0.58/1.00  thf(zip_derived_cl13, plain,
% 0.58/1.00      (![X0 : $i, X1 : $i, X2 : $i]:
% 0.58/1.00         (~ (familiar @ X0 @ X1)
% 0.58/1.00          | ~ (familiar @ X2 @ X1)
% 0.58/1.00          | ~ (familiar @ X0 @ X2))),
% 0.58/1.00      inference('cnf', [status(esa)], [zf_stmt_1])).
% 0.58/1.00  thf(zip_derived_cl446, plain,
% 0.58/1.00      (![X0 : $i]:
% 0.58/1.00         ( (familiar @ one @ two)
% 0.58/1.00          |  (familiar @ one @ four)
% 0.58/1.00          | ~ (familiar @ one @ X0)
% 0.58/1.00          | ~ (familiar @ X0 @ six))),
% 0.58/1.00      inference('sup-', [status(thm)], [zip_derived_cl445, zip_derived_cl13])).
% 0.58/1.00  thf(zip_derived_cl459, plain,
% 0.58/1.00      (( (familiar @ one @ two)
% 0.58/1.00        |  (familiar @ one @ four)
% 0.58/1.00        | ~ (familiar @ five @ six)
% 0.58/1.00        |  (familiar @ one @ four)
% 0.58/1.00        |  (familiar @ one @ two))),
% 0.58/1.00      inference('sup-', [status(thm)], [zip_derived_cl256, zip_derived_cl446])).
% 0.58/1.00  thf(zip_derived_cl465, plain,
% 0.58/1.00      ((~ (familiar @ five @ six)
% 0.58/1.00        |  (familiar @ one @ four)
% 0.58/1.00        |  (familiar @ one @ two))),
% 0.58/1.00      inference('simplify', [status(thm)], [zip_derived_cl459])).
% 0.58/1.00  thf(zip_derived_cl785, plain,
% 0.58/1.00      (( (familiar @ three @ six)
% 0.58/1.00        |  (familiar @ three @ five)
% 0.58/1.00        |  (familiar @ one @ two)
% 0.58/1.00        |  (familiar @ one @ four))),
% 0.58/1.00      inference('sup-', [status(thm)], [zip_derived_cl768, zip_derived_cl465])).
% 0.58/1.00  thf(zip_derived_cl12, plain,
% 0.58/1.00      (![X0 : $i, X1 : $i]:
% 0.58/1.00         ( (familiar @ X0 @ X1)
% 0.58/1.00          |  (not_familiar @ X0 @ X1)
% 0.58/1.00          | ~ (person @ X0)
% 0.58/1.00          | ~ (person @ X1)
% 0.58/1.00          | ~ (after @ X0 @ X1))),
% 0.58/1.00      inference('cnf', [status(esa)], [familiar_or_not])).
% 0.58/1.00  thf(zip_derived_cl10, plain, ( (after @ five @ six)),
% 0.58/1.00      inference('cnf', [status(esa)], [order5])).
% 0.58/1.00  thf(zip_derived_cl12, plain,
% 0.58/1.00      (![X0 : $i, X1 : $i]:
% 0.58/1.00         ( (familiar @ X0 @ X1)
% 0.58/1.00          |  (not_familiar @ X0 @ X1)
% 0.58/1.00          | ~ (person @ X0)
% 0.58/1.00          | ~ (person @ X1)
% 0.58/1.00          | ~ (after @ X0 @ X1))),
% 0.58/1.00      inference('cnf', [status(esa)], [familiar_or_not])).
% 0.58/1.00  thf(zip_derived_cl42, plain, ( (after @ four @ six)),
% 0.58/1.00      inference('sup-', [status(thm)], [zip_derived_cl10, zip_derived_cl28])).
% 0.58/1.00  thf(zip_derived_cl60, plain,
% 0.58/1.00      (![X0 : $i, X1 : $i, X2 : $i]:
% 0.58/1.00         (~ (after @ X1 @ X0)
% 0.58/1.00          | ~ (person @ X0)
% 0.58/1.00          | ~ (person @ X1)
% 0.58/1.00          |  (familiar @ X1 @ X0)
% 0.58/1.00          | ~ (not_familiar @ X1 @ X2)
% 0.58/1.00          | ~ (not_familiar @ X2 @ X0))),
% 0.58/1.00      inference('sup-', [status(thm)], [zip_derived_cl12, zip_derived_cl14])).
% 0.58/1.00  thf(zip_derived_cl77, plain,
% 0.58/1.00      (![X0 : $i]:
% 0.58/1.00         (~ (not_familiar @ X0 @ six)
% 0.58/1.00          | ~ (not_familiar @ four @ X0)
% 0.58/1.00          |  (familiar @ four @ six)
% 0.58/1.00          | ~ (person @ four)
% 0.58/1.00          | ~ (person @ six))),
% 0.58/1.00      inference('sup-', [status(thm)], [zip_derived_cl42, zip_derived_cl60])).
% 0.58/1.00  thf(zip_derived_cl3, plain, ( (person @ four)),
% 0.58/1.00      inference('cnf', [status(esa)], [person4])).
% 0.58/1.00  thf(zip_derived_cl5, plain, ( (person @ six)),
% 0.58/1.00      inference('cnf', [status(esa)], [person6])).
% 0.58/1.00  thf(zip_derived_cl92, plain,
% 0.58/1.00      (![X0 : $i]:
% 0.58/1.00         (~ (not_familiar @ X0 @ six)
% 0.58/1.00          | ~ (not_familiar @ four @ X0)
% 0.58/1.00          |  (familiar @ four @ six))),
% 0.58/1.00      inference('demod', [status(thm)],
% 0.58/1.00                [zip_derived_cl77, zip_derived_cl3, zip_derived_cl5])).
% 0.58/1.00  thf(zip_derived_cl120, plain,
% 0.58/1.00      (![X0 : $i]:
% 0.58/1.00         (~ (after @ X0 @ six)
% 0.58/1.00          | ~ (person @ six)
% 0.58/1.00          | ~ (person @ X0)
% 0.58/1.00          |  (familiar @ X0 @ six)
% 0.58/1.00          |  (familiar @ four @ six)
% 0.58/1.00          | ~ (not_familiar @ four @ X0))),
% 0.58/1.00      inference('sup-', [status(thm)], [zip_derived_cl12, zip_derived_cl92])).
% 0.58/1.00  thf(zip_derived_cl5, plain, ( (person @ six)),
% 0.58/1.00      inference('cnf', [status(esa)], [person6])).
% 0.58/1.00  thf(zip_derived_cl121, plain,
% 0.58/1.00      (![X0 : $i]:
% 0.58/1.00         (~ (after @ X0 @ six)
% 0.58/1.00          | ~ (person @ X0)
% 0.58/1.00          |  (familiar @ X0 @ six)
% 0.58/1.00          |  (familiar @ four @ six)
% 0.58/1.00          | ~ (not_familiar @ four @ X0))),
% 0.58/1.00      inference('demod', [status(thm)], [zip_derived_cl120, zip_derived_cl5])).
% 0.58/1.00  thf(zip_derived_cl884, plain,
% 0.58/1.00      ((~ (not_familiar @ four @ five)
% 0.58/1.00        |  (familiar @ four @ six)
% 0.58/1.00        |  (familiar @ five @ six)
% 0.58/1.00        | ~ (person @ five))),
% 0.58/1.00      inference('sup-', [status(thm)], [zip_derived_cl10, zip_derived_cl121])).
% 0.58/1.00  thf(zip_derived_cl4, plain, ( (person @ five)),
% 0.58/1.00      inference('cnf', [status(esa)], [person5])).
% 0.58/1.00  thf(zip_derived_cl890, plain,
% 0.58/1.00      ((~ (not_familiar @ four @ five)
% 0.58/1.00        |  (familiar @ four @ six)
% 0.58/1.00        |  (familiar @ five @ six))),
% 0.58/1.00      inference('demod', [status(thm)], [zip_derived_cl884, zip_derived_cl4])).
% 0.58/1.00  thf(zip_derived_cl898, plain,
% 0.58/1.00      ((~ (after @ four @ five)
% 0.58/1.00        | ~ (person @ five)
% 0.58/1.00        | ~ (person @ four)
% 0.58/1.00        |  (familiar @ four @ five)
% 0.58/1.00        |  (familiar @ five @ six)
% 0.58/1.00        |  (familiar @ four @ six))),
% 0.58/1.00      inference('sup-', [status(thm)], [zip_derived_cl12, zip_derived_cl890])).
% 0.58/1.00  thf(zip_derived_cl9, plain, ( (after @ four @ five)),
% 0.58/1.00      inference('cnf', [status(esa)], [order4])).
% 0.58/1.00  thf(zip_derived_cl4, plain, ( (person @ five)),
% 0.58/1.00      inference('cnf', [status(esa)], [person5])).
% 0.58/1.00  thf(zip_derived_cl3, plain, ( (person @ four)),
% 0.58/1.00      inference('cnf', [status(esa)], [person4])).
% 0.58/1.00  thf(zip_derived_cl899, plain,
% 0.58/1.00      (( (familiar @ four @ five)
% 0.58/1.00        |  (familiar @ five @ six)
% 0.58/1.00        |  (familiar @ four @ six))),
% 0.58/1.00      inference('demod', [status(thm)],
% 0.58/1.00                [zip_derived_cl898, zip_derived_cl9, zip_derived_cl4, 
% 0.58/1.00                 zip_derived_cl3])).
% 0.58/1.00  thf(zip_derived_cl12, plain,
% 0.58/1.00      (![X0 : $i, X1 : $i]:
% 0.58/1.00         ( (familiar @ X0 @ X1)
% 0.58/1.00          |  (not_familiar @ X0 @ X1)
% 0.58/1.00          | ~ (person @ X0)
% 0.58/1.00          | ~ (person @ X1)
% 0.58/1.00          | ~ (after @ X0 @ X1))),
% 0.58/1.00      inference('cnf', [status(esa)], [familiar_or_not])).
% 0.58/1.00  thf(zip_derived_cl7, plain, ( (after @ two @ three)),
% 0.58/1.00      inference('cnf', [status(esa)], [order2])).
% 0.58/1.00  thf(zip_derived_cl12, plain,
% 0.58/1.00      (![X0 : $i, X1 : $i]:
% 0.58/1.00         ( (familiar @ X0 @ X1)
% 0.58/1.00          |  (not_familiar @ X0 @ X1)
% 0.58/1.00          | ~ (person @ X0)
% 0.58/1.00          | ~ (person @ X1)
% 0.58/1.00          | ~ (after @ X0 @ X1))),
% 0.58/1.00      inference('cnf', [status(esa)], [familiar_or_not])).
% 0.58/1.00  thf(zip_derived_cl26, plain, ( (after @ one @ three)),
% 0.58/1.00      inference('sup-', [status(thm)], [zip_derived_cl7, zip_derived_cl24])).
% 0.58/1.00  thf(zip_derived_cl60, plain,
% 0.58/1.00      (![X0 : $i, X1 : $i, X2 : $i]:
% 0.58/1.00         (~ (after @ X1 @ X0)
% 0.58/1.00          | ~ (person @ X0)
% 0.58/1.00          | ~ (person @ X1)
% 0.58/1.00          |  (familiar @ X1 @ X0)
% 0.58/1.00          | ~ (not_familiar @ X1 @ X2)
% 0.58/1.00          | ~ (not_familiar @ X2 @ X0))),
% 0.58/1.00      inference('sup-', [status(thm)], [zip_derived_cl12, zip_derived_cl14])).
% 0.58/1.00  thf(zip_derived_cl65, plain,
% 0.58/1.00      (![X0 : $i]:
% 0.58/1.00         (~ (not_familiar @ X0 @ three)
% 0.58/1.00          | ~ (not_familiar @ one @ X0)
% 0.58/1.00          |  (familiar @ one @ three)
% 0.58/1.00          | ~ (person @ one)
% 0.58/1.00          | ~ (person @ three))),
% 0.58/1.00      inference('sup-', [status(thm)], [zip_derived_cl26, zip_derived_cl60])).
% 0.58/1.00  thf(zip_derived_cl0, plain, ( (person @ one)),
% 0.58/1.00      inference('cnf', [status(esa)], [person1])).
% 0.58/1.00  thf(zip_derived_cl2, plain, ( (person @ three)),
% 0.58/1.00      inference('cnf', [status(esa)], [person3])).
% 0.58/1.00  thf(zip_derived_cl80, plain,
% 0.58/1.00      (![X0 : $i]:
% 0.58/1.00         (~ (not_familiar @ X0 @ three)
% 0.58/1.00          | ~ (not_familiar @ one @ X0)
% 0.58/1.00          |  (familiar @ one @ three))),
% 0.58/1.00      inference('demod', [status(thm)],
% 0.58/1.00                [zip_derived_cl65, zip_derived_cl0, zip_derived_cl2])).
% 0.58/1.00  thf(zip_derived_cl96, plain,
% 0.58/1.00      (![X0 : $i]:
% 0.58/1.00         (~ (after @ X0 @ three)
% 0.58/1.00          | ~ (person @ three)
% 0.58/1.00          | ~ (person @ X0)
% 0.58/1.00          |  (familiar @ X0 @ three)
% 0.58/1.00          |  (familiar @ one @ three)
% 0.58/1.00          | ~ (not_familiar @ one @ X0))),
% 0.58/1.00      inference('sup-', [status(thm)], [zip_derived_cl12, zip_derived_cl80])).
% 0.58/1.00  thf(zip_derived_cl2, plain, ( (person @ three)),
% 0.58/1.00      inference('cnf', [status(esa)], [person3])).
% 0.58/1.00  thf(zip_derived_cl97, plain,
% 0.58/1.00      (![X0 : $i]:
% 0.58/1.00         (~ (after @ X0 @ three)
% 0.58/1.00          | ~ (person @ X0)
% 0.58/1.00          |  (familiar @ X0 @ three)
% 0.58/1.00          |  (familiar @ one @ three)
% 0.58/1.00          | ~ (not_familiar @ one @ X0))),
% 0.58/1.00      inference('demod', [status(thm)], [zip_derived_cl96, zip_derived_cl2])).
% 0.58/1.00  thf(zip_derived_cl129, plain,
% 0.58/1.00      ((~ (not_familiar @ one @ two)
% 0.58/1.00        |  (familiar @ one @ three)
% 0.58/1.00        |  (familiar @ two @ three)
% 0.58/1.00        | ~ (person @ two))),
% 0.58/1.00      inference('sup-', [status(thm)], [zip_derived_cl7, zip_derived_cl97])).
% 0.58/1.00  thf(zip_derived_cl1, plain, ( (person @ two)),
% 0.58/1.00      inference('cnf', [status(esa)], [person2])).
% 0.58/1.00  thf(zip_derived_cl132, plain,
% 0.58/1.00      ((~ (not_familiar @ one @ two)
% 0.58/1.00        |  (familiar @ one @ three)
% 0.58/1.00        |  (familiar @ two @ three))),
% 0.58/1.00      inference('demod', [status(thm)], [zip_derived_cl129, zip_derived_cl1])).
% 0.58/1.00  thf(zip_derived_cl134, plain,
% 0.58/1.00      ((~ (after @ one @ two)
% 0.58/1.00        | ~ (person @ two)
% 0.58/1.00        | ~ (person @ one)
% 0.58/1.00        |  (familiar @ one @ two)
% 0.58/1.00        |  (familiar @ two @ three)
% 0.58/1.00        |  (familiar @ one @ three))),
% 0.58/1.00      inference('sup-', [status(thm)], [zip_derived_cl12, zip_derived_cl132])).
% 0.58/1.00  thf(zip_derived_cl6, plain, ( (after @ one @ two)),
% 0.58/1.00      inference('cnf', [status(esa)], [order1])).
% 0.58/1.00  thf(zip_derived_cl1, plain, ( (person @ two)),
% 0.58/1.00      inference('cnf', [status(esa)], [person2])).
% 0.58/1.00  thf(zip_derived_cl0, plain, ( (person @ one)),
% 0.58/1.00      inference('cnf', [status(esa)], [person1])).
% 0.58/1.00  thf(zip_derived_cl135, plain,
% 0.58/1.00      (( (familiar @ one @ two)
% 0.58/1.00        |  (familiar @ two @ three)
% 0.58/1.00        |  (familiar @ one @ three))),
% 0.58/1.00      inference('demod', [status(thm)],
% 0.58/1.00                [zip_derived_cl134, zip_derived_cl6, zip_derived_cl1, 
% 0.58/1.00                 zip_derived_cl0])).
% 0.58/1.00  thf(zip_derived_cl173, plain,
% 0.58/1.00      (![X0 : $i]:
% 0.58/1.00         ( (familiar @ one @ five)
% 0.58/1.00          |  (familiar @ one @ two)
% 0.58/1.00          | ~ (familiar @ two @ X0)
% 0.58/1.00          | ~ (familiar @ X0 @ five))),
% 0.58/1.00      inference('sup-', [status(thm)], [zip_derived_cl164, zip_derived_cl13])).
% 0.58/1.00  thf(zip_derived_cl194, plain,
% 0.58/1.00      (( (familiar @ one @ three)
% 0.58/1.00        |  (familiar @ one @ two)
% 0.58/1.00        | ~ (familiar @ three @ five)
% 0.58/1.00        |  (familiar @ one @ two)
% 0.58/1.00        |  (familiar @ one @ five))),
% 0.58/1.00      inference('sup-', [status(thm)], [zip_derived_cl135, zip_derived_cl173])).
% 0.58/1.00  thf(zip_derived_cl197, plain,
% 0.58/1.00      (( (familiar @ one @ five)
% 0.58/1.00        | ~ (familiar @ three @ five)
% 0.58/1.00        |  (familiar @ one @ two)
% 0.58/1.00        |  (familiar @ one @ three))),
% 0.58/1.00      inference('simplify', [status(thm)], [zip_derived_cl194])).
% 0.58/1.00  thf(zip_derived_cl166, plain,
% 0.58/1.00      (( (familiar @ one @ three)
% 0.58/1.00        |  (familiar @ three @ five)
% 0.58/1.00        |  (familiar @ one @ five))),
% 0.58/1.00      inference('demod', [status(thm)],
% 0.58/1.00                [zip_derived_cl165, zip_derived_cl26, zip_derived_cl2, 
% 0.58/1.00                 zip_derived_cl0])).
% 0.58/1.00  thf(zip_derived_cl252, plain,
% 0.58/1.00      (( (familiar @ one @ three)
% 0.58/1.00        |  (familiar @ one @ two)
% 0.58/1.00        |  (familiar @ one @ five))),
% 0.58/1.00      inference('clc', [status(thm)], [zip_derived_cl197, zip_derived_cl166])).
% 0.58/1.00  thf(zip_derived_cl135, plain,
% 0.58/1.00      (( (familiar @ one @ two)
% 0.58/1.00        |  (familiar @ two @ three)
% 0.58/1.00        |  (familiar @ one @ three))),
% 0.58/1.00      inference('demod', [status(thm)],
% 0.58/1.00                [zip_derived_cl134, zip_derived_cl6, zip_derived_cl1, 
% 0.58/1.00                 zip_derived_cl0])).
% 0.58/1.00  thf(zip_derived_cl236, plain,
% 0.58/1.00      (![X0 : $i]:
% 0.58/1.00         ( (familiar @ one @ six)
% 0.58/1.00          |  (familiar @ one @ two)
% 0.58/1.00          | ~ (familiar @ two @ X0)
% 0.58/1.00          | ~ (familiar @ X0 @ six))),
% 0.58/1.00      inference('sup-', [status(thm)], [zip_derived_cl229, zip_derived_cl13])).
% 0.58/1.00  thf(zip_derived_cl264, plain,
% 0.58/1.00      (( (familiar @ one @ three)
% 0.58/1.00        |  (familiar @ one @ two)
% 0.58/1.00        | ~ (familiar @ three @ six)
% 0.58/1.00        |  (familiar @ one @ two)
% 0.58/1.00        |  (familiar @ one @ six))),
% 0.58/1.00      inference('sup-', [status(thm)], [zip_derived_cl135, zip_derived_cl236])).
% 0.58/1.00  thf(zip_derived_cl268, plain,
% 0.58/1.00      (( (familiar @ one @ six)
% 0.58/1.00        | ~ (familiar @ three @ six)
% 0.58/1.00        |  (familiar @ one @ two)
% 0.58/1.00        |  (familiar @ one @ three))),
% 0.58/1.00      inference('simplify', [status(thm)], [zip_derived_cl264])).
% 0.58/1.00  thf(zip_derived_cl231, plain,
% 0.58/1.00      (( (familiar @ one @ three)
% 0.58/1.00        |  (familiar @ three @ six)
% 0.58/1.00        |  (familiar @ one @ six))),
% 0.58/1.00      inference('demod', [status(thm)],
% 0.58/1.00                [zip_derived_cl230, zip_derived_cl26, zip_derived_cl2, 
% 0.58/1.00                 zip_derived_cl0])).
% 0.58/1.00  thf(zip_derived_cl397, plain,
% 0.58/1.00      (( (familiar @ one @ three)
% 0.58/1.00        |  (familiar @ one @ two)
% 0.58/1.00        |  (familiar @ one @ six))),
% 0.58/1.00      inference('clc', [status(thm)], [zip_derived_cl268, zip_derived_cl231])).
% 0.58/1.00  thf(zip_derived_cl13, plain,
% 0.58/1.00      (![X0 : $i, X1 : $i, X2 : $i]:
% 0.58/1.00         (~ (familiar @ X0 @ X1)
% 0.58/1.00          | ~ (familiar @ X2 @ X1)
% 0.58/1.00          | ~ (familiar @ X0 @ X2))),
% 0.58/1.00      inference('cnf', [status(esa)], [zf_stmt_1])).
% 0.58/1.00  thf(zip_derived_cl398, plain,
% 0.58/1.00      (![X0 : $i]:
% 0.58/1.00         ( (familiar @ one @ two)
% 0.58/1.00          |  (familiar @ one @ three)
% 0.58/1.00          | ~ (familiar @ one @ X0)
% 0.58/1.00          | ~ (familiar @ X0 @ six))),
% 0.58/1.00      inference('sup-', [status(thm)], [zip_derived_cl397, zip_derived_cl13])).
% 0.58/1.00  thf(zip_derived_cl432, plain,
% 0.58/1.00      (( (familiar @ one @ two)
% 0.58/1.00        |  (familiar @ one @ three)
% 0.58/1.00        | ~ (familiar @ five @ six)
% 0.58/1.00        |  (familiar @ one @ three)
% 0.58/1.00        |  (familiar @ one @ two))),
% 0.58/1.00      inference('sup-', [status(thm)], [zip_derived_cl252, zip_derived_cl398])).
% 0.58/1.00  thf(zip_derived_cl437, plain,
% 0.58/1.00      ((~ (familiar @ five @ six)
% 0.58/1.00        |  (familiar @ one @ three)
% 0.58/1.00        |  (familiar @ one @ two))),
% 0.58/1.00      inference('simplify', [status(thm)], [zip_derived_cl432])).
% 0.58/1.00  thf(zip_derived_cl904, plain,
% 0.58/1.00      (( (familiar @ four @ six)
% 0.58/1.00        |  (familiar @ four @ five)
% 0.58/1.00        |  (familiar @ one @ two)
% 0.58/1.00        |  (familiar @ one @ three))),
% 0.58/1.00      inference('sup-', [status(thm)], [zip_derived_cl899, zip_derived_cl437])).
% 0.58/1.00  thf(zip_derived_cl135, plain,
% 0.58/1.00      (( (familiar @ one @ two)
% 0.58/1.00        |  (familiar @ two @ three)
% 0.58/1.00        |  (familiar @ one @ three))),
% 0.58/1.00      inference('demod', [status(thm)],
% 0.58/1.00                [zip_derived_cl134, zip_derived_cl6, zip_derived_cl1, 
% 0.58/1.00                 zip_derived_cl0])).
% 0.58/1.00  thf(zip_derived_cl150, plain,
% 0.58/1.00      (( (familiar @ one @ two)
% 0.58/1.00        |  (familiar @ two @ four)
% 0.58/1.00        |  (familiar @ one @ four))),
% 0.58/1.00      inference('demod', [status(thm)],
% 0.58/1.00                [zip_derived_cl149, zip_derived_cl6, zip_derived_cl1, 
% 0.58/1.00                 zip_derived_cl0])).
% 0.58/1.00  thf(zip_derived_cl13, plain,
% 0.58/1.00      (![X0 : $i, X1 : $i, X2 : $i]:
% 0.58/1.00         (~ (familiar @ X0 @ X1)
% 0.58/1.00          | ~ (familiar @ X2 @ X1)
% 0.58/1.00          | ~ (familiar @ X0 @ X2))),
% 0.58/1.00      inference('cnf', [status(esa)], [zf_stmt_1])).
% 0.58/1.00  thf(zip_derived_cl169, plain,
% 0.58/1.00      (![X0 : $i]:
% 0.58/1.00         ( (familiar @ one @ four)
% 0.58/1.00          |  (familiar @ one @ two)
% 0.58/1.00          | ~ (familiar @ two @ X0)
% 0.58/1.00          | ~ (familiar @ X0 @ four))),
% 0.58/1.00      inference('sup-', [status(thm)], [zip_derived_cl150, zip_derived_cl13])).
% 0.58/1.00  thf(zip_derived_cl178, plain,
% 0.58/1.00      (( (familiar @ one @ three)
% 0.58/1.00        |  (familiar @ one @ two)
% 0.58/1.00        | ~ (familiar @ three @ four)
% 0.58/1.00        |  (familiar @ one @ two)
% 0.58/1.00        |  (familiar @ one @ four))),
% 0.58/1.00      inference('sup-', [status(thm)], [zip_derived_cl135, zip_derived_cl169])).
% 0.58/1.00  thf(zip_derived_cl181, plain,
% 0.58/1.00      (( (familiar @ one @ four)
% 0.58/1.00        | ~ (familiar @ three @ four)
% 0.58/1.00        |  (familiar @ one @ two)
% 0.58/1.00        |  (familiar @ one @ three))),
% 0.58/1.00      inference('simplify', [status(thm)], [zip_derived_cl178])).
% 0.58/1.00  thf(zip_derived_cl152, plain,
% 0.58/1.00      (( (familiar @ one @ three)
% 0.58/1.00        |  (familiar @ three @ four)
% 0.58/1.00        |  (familiar @ one @ four))),
% 0.58/1.00      inference('demod', [status(thm)],
% 0.58/1.00                [zip_derived_cl151, zip_derived_cl26, zip_derived_cl2, 
% 0.58/1.00                 zip_derived_cl0])).
% 0.58/1.00  thf(zip_derived_cl186, plain,
% 0.58/1.00      (( (familiar @ one @ three)
% 0.58/1.00        |  (familiar @ one @ two)
% 0.58/1.00        |  (familiar @ one @ four))),
% 0.58/1.00      inference('clc', [status(thm)], [zip_derived_cl181, zip_derived_cl152])).
% 0.58/1.00  thf(zip_derived_cl398, plain,
% 0.58/1.00      (![X0 : $i]:
% 0.58/1.00         ( (familiar @ one @ two)
% 0.58/1.00          |  (familiar @ one @ three)
% 0.58/1.00          | ~ (familiar @ one @ X0)
% 0.58/1.00          | ~ (familiar @ X0 @ six))),
% 0.58/1.00      inference('sup-', [status(thm)], [zip_derived_cl397, zip_derived_cl13])).
% 0.58/1.00  thf(zip_derived_cl431, plain,
% 0.58/1.00      (( (familiar @ one @ two)
% 0.58/1.00        |  (familiar @ one @ three)
% 0.58/1.00        | ~ (familiar @ four @ six)
% 0.58/1.00        |  (familiar @ one @ three)
% 0.58/1.00        |  (familiar @ one @ two))),
% 0.58/1.00      inference('sup-', [status(thm)], [zip_derived_cl186, zip_derived_cl398])).
% 0.58/1.00  thf(zip_derived_cl436, plain,
% 0.58/1.00      ((~ (familiar @ four @ six)
% 0.58/1.00        |  (familiar @ one @ three)
% 0.58/1.00        |  (familiar @ one @ two))),
% 0.58/1.00      inference('simplify', [status(thm)], [zip_derived_cl431])).
% 0.58/1.00  thf(zip_derived_cl909, plain,
% 0.58/1.00      (( (familiar @ one @ three)
% 0.58/1.00        |  (familiar @ one @ two)
% 0.58/1.00        |  (familiar @ four @ five))),
% 0.58/1.00      inference('clc', [status(thm)], [zip_derived_cl904, zip_derived_cl436])).
% 0.58/1.00  thf(zip_derived_cl186, plain,
% 0.58/1.00      (( (familiar @ one @ three)
% 0.58/1.00        |  (familiar @ one @ two)
% 0.58/1.00        |  (familiar @ one @ four))),
% 0.58/1.00      inference('clc', [status(thm)], [zip_derived_cl181, zip_derived_cl152])).
% 0.58/1.00  thf(zip_derived_cl252, plain,
% 0.58/1.00      (( (familiar @ one @ three)
% 0.58/1.00        |  (familiar @ one @ two)
% 0.58/1.00        |  (familiar @ one @ five))),
% 0.58/1.00      inference('clc', [status(thm)], [zip_derived_cl197, zip_derived_cl166])).
% 0.58/1.00  thf(zip_derived_cl13, plain,
% 0.58/1.00      (![X0 : $i, X1 : $i, X2 : $i]:
% 0.58/1.00         (~ (familiar @ X0 @ X1)
% 0.58/1.00          | ~ (familiar @ X2 @ X1)
% 0.58/1.00          | ~ (familiar @ X0 @ X2))),
% 0.58/1.00      inference('cnf', [status(esa)], [zf_stmt_1])).
% 0.58/1.00  thf(zip_derived_cl253, plain,
% 0.58/1.00      (![X0 : $i]:
% 0.58/1.00         ( (familiar @ one @ two)
% 0.58/1.00          |  (familiar @ one @ three)
% 0.58/1.00          | ~ (familiar @ one @ X0)
% 0.58/1.00          | ~ (familiar @ X0 @ five))),
% 0.58/1.00      inference('sup-', [status(thm)], [zip_derived_cl252, zip_derived_cl13])).
% 0.58/1.00  thf(zip_derived_cl292, plain,
% 0.58/1.00      (( (familiar @ one @ two)
% 0.58/1.00        |  (familiar @ one @ three)
% 0.58/1.00        | ~ (familiar @ four @ five)
% 0.58/1.00        |  (familiar @ one @ three)
% 0.58/1.00        |  (familiar @ one @ two))),
% 0.58/1.00      inference('sup-', [status(thm)], [zip_derived_cl186, zip_derived_cl253])).
% 0.58/1.00  thf(zip_derived_cl296, plain,
% 0.58/1.00      ((~ (familiar @ four @ five)
% 0.58/1.00        |  (familiar @ one @ three)
% 0.58/1.00        |  (familiar @ one @ two))),
% 0.58/1.00      inference('simplify', [status(thm)], [zip_derived_cl292])).
% 0.58/1.00  thf(zip_derived_cl910, plain,
% 0.58/1.00      (( (familiar @ one @ two) |  (familiar @ one @ three))),
% 0.58/1.00      inference('clc', [status(thm)], [zip_derived_cl909, zip_derived_cl296])).
% 0.58/1.00  thf(zip_derived_cl446, plain,
% 0.58/1.00      (![X0 : $i]:
% 0.58/1.00         ( (familiar @ one @ two)
% 0.58/1.00          |  (familiar @ one @ four)
% 0.58/1.00          | ~ (familiar @ one @ X0)
% 0.58/1.00          | ~ (familiar @ X0 @ six))),
% 0.58/1.00      inference('sup-', [status(thm)], [zip_derived_cl445, zip_derived_cl13])).
% 0.58/1.00  thf(zip_derived_cl914, plain,
% 0.58/1.00      (( (familiar @ one @ two)
% 0.58/1.00        | ~ (familiar @ three @ six)
% 0.58/1.00        |  (familiar @ one @ four)
% 0.58/1.00        |  (familiar @ one @ two))),
% 0.58/1.00      inference('sup-', [status(thm)], [zip_derived_cl910, zip_derived_cl446])).
% 0.58/1.00  thf(zip_derived_cl920, plain,
% 0.58/1.00      (( (familiar @ one @ four)
% 0.58/1.00        | ~ (familiar @ three @ six)
% 0.58/1.00        |  (familiar @ one @ two))),
% 0.58/1.00      inference('simplify', [status(thm)], [zip_derived_cl914])).
% 0.58/1.00  thf(zip_derived_cl966, plain,
% 0.58/1.00      (( (familiar @ one @ four)
% 0.58/1.00        |  (familiar @ one @ two)
% 0.58/1.00        |  (familiar @ three @ five)
% 0.58/1.00        |  (familiar @ one @ two)
% 0.58/1.00        |  (familiar @ one @ four))),
% 0.58/1.00      inference('sup-', [status(thm)], [zip_derived_cl785, zip_derived_cl920])).
% 0.58/1.00  thf(zip_derived_cl968, plain,
% 0.58/1.00      (( (familiar @ three @ five)
% 0.58/1.00        |  (familiar @ one @ two)
% 0.58/1.00        |  (familiar @ one @ four))),
% 0.58/1.00      inference('simplify', [status(thm)], [zip_derived_cl966])).
% 0.58/1.00  thf(zip_derived_cl910, plain,
% 0.58/1.00      (( (familiar @ one @ two) |  (familiar @ one @ three))),
% 0.58/1.00      inference('clc', [status(thm)], [zip_derived_cl909, zip_derived_cl296])).
% 0.58/1.00  thf(zip_derived_cl256, plain,
% 0.58/1.00      (( (familiar @ one @ four)
% 0.58/1.00        |  (familiar @ one @ two)
% 0.58/1.00        |  (familiar @ one @ five))),
% 0.58/1.00      inference('clc', [status(thm)], [zip_derived_cl198, zip_derived_cl168])).
% 0.58/1.00  thf(zip_derived_cl13, plain,
% 0.58/1.00      (![X0 : $i, X1 : $i, X2 : $i]:
% 0.58/1.00         (~ (familiar @ X0 @ X1)
% 0.58/1.00          | ~ (familiar @ X2 @ X1)
% 0.58/1.00          | ~ (familiar @ X0 @ X2))),
% 0.58/1.00      inference('cnf', [status(esa)], [zf_stmt_1])).
% 0.58/1.00  thf(zip_derived_cl257, plain,
% 0.58/1.00      (![X0 : $i]:
% 0.58/1.00         ( (familiar @ one @ two)
% 0.58/1.00          |  (familiar @ one @ four)
% 0.58/1.00          | ~ (familiar @ one @ X0)
% 0.58/1.00          | ~ (familiar @ X0 @ five))),
% 0.58/1.00      inference('sup-', [status(thm)], [zip_derived_cl256, zip_derived_cl13])).
% 0.58/1.00  thf(zip_derived_cl912, plain,
% 0.58/1.00      (( (familiar @ one @ two)
% 0.58/1.00        | ~ (familiar @ three @ five)
% 0.58/1.00        |  (familiar @ one @ four)
% 0.58/1.00        |  (familiar @ one @ two))),
% 0.58/1.00      inference('sup-', [status(thm)], [zip_derived_cl910, zip_derived_cl257])).
% 0.58/1.00  thf(zip_derived_cl919, plain,
% 0.58/1.00      (( (familiar @ one @ four)
% 0.58/1.00        | ~ (familiar @ three @ five)
% 0.58/1.00        |  (familiar @ one @ two))),
% 0.58/1.00      inference('simplify', [status(thm)], [zip_derived_cl912])).
% 0.58/1.00  thf(zip_derived_cl1002, plain,
% 0.58/1.00      (( (familiar @ one @ four) |  (familiar @ one @ two))),
% 0.58/1.00      inference('clc', [status(thm)], [zip_derived_cl968, zip_derived_cl919])).
% 0.58/1.00  thf(zip_derived_cl12, plain,
% 0.58/1.00      (![X0 : $i, X1 : $i]:
% 0.58/1.00         ( (familiar @ X0 @ X1)
% 0.58/1.00          |  (not_familiar @ X0 @ X1)
% 0.58/1.00          | ~ (person @ X0)
% 0.58/1.00          | ~ (person @ X1)
% 0.58/1.00          | ~ (after @ X0 @ X1))),
% 0.58/1.00      inference('cnf', [status(esa)], [familiar_or_not])).
% 0.58/1.00  thf(zip_derived_cl42, plain, ( (after @ four @ six)),
% 0.58/1.00      inference('sup-', [status(thm)], [zip_derived_cl10, zip_derived_cl28])).
% 0.58/1.00  thf(zip_derived_cl117, plain,
% 0.58/1.00      (![X0 : $i]:
% 0.58/1.00         (~ (after @ X0 @ six)
% 0.58/1.00          | ~ (person @ X0)
% 0.58/1.00          |  (familiar @ X0 @ six)
% 0.58/1.00          |  (familiar @ three @ six)
% 0.58/1.00          | ~ (not_familiar @ three @ X0))),
% 0.58/1.00      inference('demod', [status(thm)], [zip_derived_cl116, zip_derived_cl5])).
% 0.58/1.00  thf(zip_derived_cl752, plain,
% 0.58/1.00      ((~ (not_familiar @ three @ four)
% 0.58/1.00        |  (familiar @ three @ six)
% 0.58/1.00        |  (familiar @ four @ six)
% 0.58/1.00        | ~ (person @ four))),
% 0.58/1.00      inference('sup-', [status(thm)], [zip_derived_cl42, zip_derived_cl117])).
% 0.58/1.00  thf(zip_derived_cl3, plain, ( (person @ four)),
% 0.58/1.00      inference('cnf', [status(esa)], [person4])).
% 0.58/1.00  thf(zip_derived_cl758, plain,
% 0.58/1.00      ((~ (not_familiar @ three @ four)
% 0.58/1.00        |  (familiar @ three @ six)
% 0.58/1.00        |  (familiar @ four @ six))),
% 0.58/1.00      inference('demod', [status(thm)], [zip_derived_cl752, zip_derived_cl3])).
% 0.58/1.00  thf(zip_derived_cl765, plain,
% 0.58/1.00      ((~ (after @ three @ four)
% 0.58/1.00        | ~ (person @ four)
% 0.58/1.00        | ~ (person @ three)
% 0.58/1.00        |  (familiar @ three @ four)
% 0.58/1.00        |  (familiar @ four @ six)
% 0.58/1.00        |  (familiar @ three @ six))),
% 0.58/1.00      inference('sup-', [status(thm)], [zip_derived_cl12, zip_derived_cl758])).
% 0.58/1.00  thf(zip_derived_cl8, plain, ( (after @ three @ four)),
% 0.58/1.00      inference('cnf', [status(esa)], [order3])).
% 0.58/1.00  thf(zip_derived_cl3, plain, ( (person @ four)),
% 0.58/1.00      inference('cnf', [status(esa)], [person4])).
% 0.58/1.00  thf(zip_derived_cl2, plain, ( (person @ three)),
% 0.58/1.00      inference('cnf', [status(esa)], [person3])).
% 0.58/1.00  thf(zip_derived_cl766, plain,
% 0.58/1.00      (( (familiar @ three @ four)
% 0.58/1.00        |  (familiar @ four @ six)
% 0.58/1.00        |  (familiar @ three @ six))),
% 0.58/1.00      inference('demod', [status(thm)],
% 0.58/1.00                [zip_derived_cl765, zip_derived_cl8, zip_derived_cl3, 
% 0.58/1.00                 zip_derived_cl2])).
% 0.58/1.00  thf(zip_derived_cl1002, plain,
% 0.58/1.00      (( (familiar @ one @ four) |  (familiar @ one @ two))),
% 0.58/1.00      inference('clc', [status(thm)], [zip_derived_cl968, zip_derived_cl919])).
% 0.58/1.00  thf(zip_derived_cl164, plain,
% 0.58/1.00      (( (familiar @ one @ two)
% 0.58/1.00        |  (familiar @ two @ five)
% 0.58/1.00        |  (familiar @ one @ five))),
% 0.58/1.00      inference('demod', [status(thm)],
% 0.58/1.00                [zip_derived_cl163, zip_derived_cl6, zip_derived_cl1, 
% 0.58/1.00                 zip_derived_cl0])).
% 0.58/1.00  thf(zip_derived_cl236, plain,
% 0.58/1.00      (![X0 : $i]:
% 0.58/1.00         ( (familiar @ one @ six)
% 0.58/1.00          |  (familiar @ one @ two)
% 0.58/1.00          | ~ (familiar @ two @ X0)
% 0.58/1.00          | ~ (familiar @ X0 @ six))),
% 0.58/1.00      inference('sup-', [status(thm)], [zip_derived_cl229, zip_derived_cl13])).
% 0.58/1.00  thf(zip_derived_cl266, plain,
% 0.58/1.00      (( (familiar @ one @ five)
% 0.58/1.00        |  (familiar @ one @ two)
% 0.58/1.00        | ~ (familiar @ five @ six)
% 0.58/1.00        |  (familiar @ one @ two)
% 0.58/1.00        |  (familiar @ one @ six))),
% 0.58/1.00      inference('sup-', [status(thm)], [zip_derived_cl164, zip_derived_cl236])).
% 0.58/1.00  thf(zip_derived_cl270, plain,
% 0.58/1.00      (( (familiar @ one @ six)
% 0.58/1.00        | ~ (familiar @ five @ six)
% 0.58/1.00        |  (familiar @ one @ two)
% 0.58/1.00        |  (familiar @ one @ five))),
% 0.58/1.00      inference('simplify', [status(thm)], [zip_derived_cl266])).
% 0.58/1.00  thf(zip_derived_cl12, plain,
% 0.58/1.00      (![X0 : $i, X1 : $i]:
% 0.58/1.00         ( (familiar @ X0 @ X1)
% 0.58/1.00          |  (not_familiar @ X0 @ X1)
% 0.58/1.00          | ~ (person @ X0)
% 0.58/1.00          | ~ (person @ X1)
% 0.58/1.00          | ~ (after @ X0 @ X1))),
% 0.58/1.00      inference('cnf', [status(esa)], [familiar_or_not])).
% 0.58/1.00  thf(zip_derived_cl10, plain, ( (after @ five @ six)),
% 0.58/1.00      inference('cnf', [status(esa)], [order5])).
% 0.58/1.00  thf(zip_derived_cl103, plain,
% 0.58/1.00      (![X0 : $i]:
% 0.58/1.00         (~ (after @ X0 @ six)
% 0.58/1.00          | ~ (person @ X0)
% 0.58/1.00          |  (familiar @ X0 @ six)
% 0.58/1.00          |  (familiar @ one @ six)
% 0.58/1.00          | ~ (not_familiar @ one @ X0))),
% 0.58/1.00      inference('demod', [status(thm)], [zip_derived_cl102, zip_derived_cl5])).
% 0.58/1.00  thf(zip_derived_cl220, plain,
% 0.58/1.00      ((~ (not_familiar @ one @ five)
% 0.58/1.00        |  (familiar @ one @ six)
% 0.58/1.00        |  (familiar @ five @ six)
% 0.58/1.00        | ~ (person @ five))),
% 0.58/1.00      inference('sup-', [status(thm)], [zip_derived_cl10, zip_derived_cl103])).
% 0.58/1.00  thf(zip_derived_cl4, plain, ( (person @ five)),
% 0.58/1.00      inference('cnf', [status(esa)], [person5])).
% 0.58/1.00  thf(zip_derived_cl226, plain,
% 0.58/1.00      ((~ (not_familiar @ one @ five)
% 0.58/1.00        |  (familiar @ one @ six)
% 0.58/1.00        |  (familiar @ five @ six))),
% 0.58/1.00      inference('demod', [status(thm)], [zip_derived_cl220, zip_derived_cl4])).
% 0.58/1.00  thf(zip_derived_cl234, plain,
% 0.58/1.00      ((~ (after @ one @ five)
% 0.58/1.00        | ~ (person @ five)
% 0.58/1.00        | ~ (person @ one)
% 0.58/1.00        |  (familiar @ one @ five)
% 0.58/1.00        |  (familiar @ five @ six)
% 0.58/1.00        |  (familiar @ one @ six))),
% 0.58/1.00      inference('sup-', [status(thm)], [zip_derived_cl12, zip_derived_cl226])).
% 0.58/1.00  thf(zip_derived_cl40, plain, ( (after @ one @ five)),
% 0.58/1.00      inference('sup-', [status(thm)], [zip_derived_cl38, zip_derived_cl24])).
% 0.58/1.00  thf(zip_derived_cl4, plain, ( (person @ five)),
% 0.58/1.00      inference('cnf', [status(esa)], [person5])).
% 0.58/1.00  thf(zip_derived_cl0, plain, ( (person @ one)),
% 0.58/1.00      inference('cnf', [status(esa)], [person1])).
% 0.58/1.00  thf(zip_derived_cl235, plain,
% 0.58/1.00      (( (familiar @ one @ five)
% 0.58/1.00        |  (familiar @ five @ six)
% 0.58/1.00        |  (familiar @ one @ six))),
% 0.58/1.00      inference('demod', [status(thm)],
% 0.58/1.00                [zip_derived_cl234, zip_derived_cl40, zip_derived_cl4, 
% 0.58/1.00                 zip_derived_cl0])).
% 0.58/1.00  thf(zip_derived_cl479, plain,
% 0.58/1.00      (( (familiar @ one @ five)
% 0.58/1.00        |  (familiar @ one @ two)
% 0.58/1.00        |  (familiar @ one @ six))),
% 0.58/1.00      inference('clc', [status(thm)], [zip_derived_cl270, zip_derived_cl235])).
% 0.58/1.00  thf(zip_derived_cl13, plain,
% 0.58/1.00      (![X0 : $i, X1 : $i, X2 : $i]:
% 0.58/1.00         (~ (familiar @ X0 @ X1)
% 0.58/1.00          | ~ (familiar @ X2 @ X1)
% 0.58/1.00          | ~ (familiar @ X0 @ X2))),
% 0.58/1.00      inference('cnf', [status(esa)], [zf_stmt_1])).
% 0.58/1.00  thf(zip_derived_cl480, plain,
% 0.58/1.00      (![X0 : $i]:
% 0.58/1.00         ( (familiar @ one @ two)
% 0.58/1.00          |  (familiar @ one @ five)
% 0.58/1.00          | ~ (familiar @ one @ X0)
% 0.58/1.00          | ~ (familiar @ X0 @ six))),
% 0.58/1.00      inference('sup-', [status(thm)], [zip_derived_cl479, zip_derived_cl13])).
% 0.58/1.00  thf(zip_derived_cl1005, plain,
% 0.58/1.00      (( (familiar @ one @ two)
% 0.58/1.00        | ~ (familiar @ four @ six)
% 0.58/1.00        |  (familiar @ one @ five)
% 0.58/1.00        |  (familiar @ one @ two))),
% 0.58/1.00      inference('sup-', [status(thm)], [zip_derived_cl1002, zip_derived_cl480])).
% 0.58/1.00  thf(zip_derived_cl1010, plain,
% 0.58/1.00      (( (familiar @ one @ five)
% 0.58/1.00        | ~ (familiar @ four @ six)
% 0.58/1.00        |  (familiar @ one @ two))),
% 0.58/1.00      inference('simplify', [status(thm)], [zip_derived_cl1005])).
% 0.58/1.00  thf(zip_derived_cl1014, plain,
% 0.58/1.00      (( (familiar @ three @ six)
% 0.58/1.00        |  (familiar @ three @ four)
% 0.58/1.00        |  (familiar @ one @ two)
% 0.58/1.00        |  (familiar @ one @ five))),
% 0.58/1.00      inference('sup-', [status(thm)], [zip_derived_cl766, zip_derived_cl1010])).
% 0.58/1.00  thf(zip_derived_cl910, plain,
% 0.58/1.00      (( (familiar @ one @ two) |  (familiar @ one @ three))),
% 0.58/1.00      inference('clc', [status(thm)], [zip_derived_cl909, zip_derived_cl296])).
% 0.58/1.00  thf(zip_derived_cl480, plain,
% 0.58/1.00      (![X0 : $i]:
% 0.58/1.00         ( (familiar @ one @ two)
% 0.58/1.00          |  (familiar @ one @ five)
% 0.58/1.00          | ~ (familiar @ one @ X0)
% 0.58/1.00          | ~ (familiar @ X0 @ six))),
% 0.58/1.00      inference('sup-', [status(thm)], [zip_derived_cl479, zip_derived_cl13])).
% 0.58/1.00  thf(zip_derived_cl915, plain,
% 0.58/1.00      (( (familiar @ one @ two)
% 0.58/1.00        | ~ (familiar @ three @ six)
% 0.58/1.00        |  (familiar @ one @ five)
% 0.58/1.00        |  (familiar @ one @ two))),
% 0.58/1.00      inference('sup-', [status(thm)], [zip_derived_cl910, zip_derived_cl480])).
% 0.58/1.00  thf(zip_derived_cl921, plain,
% 0.58/1.00      (( (familiar @ one @ five)
% 0.58/1.00        | ~ (familiar @ three @ six)
% 0.58/1.00        |  (familiar @ one @ two))),
% 0.58/1.00      inference('simplify', [status(thm)], [zip_derived_cl915])).
% 0.58/1.00  thf(zip_derived_cl1090, plain,
% 0.58/1.00      (( (familiar @ one @ five)
% 0.58/1.00        |  (familiar @ one @ two)
% 0.58/1.00        |  (familiar @ three @ four))),
% 0.58/1.00      inference('clc', [status(thm)], [zip_derived_cl1014, zip_derived_cl921])).
% 0.58/1.00  thf(zip_derived_cl910, plain,
% 0.58/1.00      (( (familiar @ one @ two) |  (familiar @ one @ three))),
% 0.58/1.00      inference('clc', [status(thm)], [zip_derived_cl909, zip_derived_cl296])).
% 0.58/1.00  thf(zip_derived_cl1002, plain,
% 0.58/1.00      (( (familiar @ one @ four) |  (familiar @ one @ two))),
% 0.58/1.00      inference('clc', [status(thm)], [zip_derived_cl968, zip_derived_cl919])).
% 0.58/1.00  thf(zip_derived_cl13, plain,
% 0.58/1.00      (![X0 : $i, X1 : $i, X2 : $i]:
% 0.58/1.00         (~ (familiar @ X0 @ X1)
% 0.58/1.00          | ~ (familiar @ X2 @ X1)
% 0.58/1.00          | ~ (familiar @ X0 @ X2))),
% 0.58/1.00      inference('cnf', [status(esa)], [zf_stmt_1])).
% 0.58/1.00  thf(zip_derived_cl1003, plain,
% 0.58/1.00      (![X0 : $i]:
% 0.58/1.00         ( (familiar @ one @ two)
% 0.58/1.00          | ~ (familiar @ one @ X0)
% 0.58/1.00          | ~ (familiar @ X0 @ four))),
% 0.58/1.00      inference('sup-', [status(thm)], [zip_derived_cl1002, zip_derived_cl13])).
% 0.58/1.00  thf(zip_derived_cl1016, plain,
% 0.58/1.00      (( (familiar @ one @ two)
% 0.58/1.00        | ~ (familiar @ three @ four)
% 0.58/1.00        |  (familiar @ one @ two))),
% 0.58/1.00      inference('sup-', [status(thm)], [zip_derived_cl910, zip_derived_cl1003])).
% 0.58/1.00  thf(zip_derived_cl1023, plain,
% 0.58/1.00      ((~ (familiar @ three @ four) |  (familiar @ one @ two))),
% 0.58/1.00      inference('simplify', [status(thm)], [zip_derived_cl1016])).
% 0.58/1.00  thf(zip_derived_cl1091, plain,
% 0.58/1.00      (( (familiar @ one @ two) |  (familiar @ one @ five))),
% 0.58/1.00      inference('clc', [status(thm)], [zip_derived_cl1090, zip_derived_cl1023])).
% 0.58/1.00  thf(zip_derived_cl13, plain,
% 0.58/1.00      (![X0 : $i, X1 : $i, X2 : $i]:
% 0.58/1.00         (~ (familiar @ X0 @ X1)
% 0.58/1.00          | ~ (familiar @ X2 @ X1)
% 0.58/1.00          | ~ (familiar @ X0 @ X2))),
% 0.58/1.00      inference('cnf', [status(esa)], [zf_stmt_1])).
% 0.58/1.00  thf(zip_derived_cl1092, plain,
% 0.58/1.00      (![X0 : $i]:
% 0.58/1.00         ( (familiar @ one @ two)
% 0.58/1.00          | ~ (familiar @ one @ X0)
% 0.58/1.00          | ~ (familiar @ X0 @ five))),
% 0.58/1.00      inference('sup-', [status(thm)], [zip_derived_cl1091, zip_derived_cl13])).
% 0.58/1.00  thf(zip_derived_cl1109, plain,
% 0.58/1.00      (( (familiar @ one @ two)
% 0.58/1.00        | ~ (familiar @ four @ five)
% 0.58/1.00        |  (familiar @ one @ two))),
% 0.58/1.00      inference('sup-', [status(thm)], [zip_derived_cl1002, zip_derived_cl1092])).
% 0.58/1.00  thf(zip_derived_cl1116, plain,
% 0.58/1.00      ((~ (familiar @ four @ five) |  (familiar @ one @ two))),
% 0.58/1.00      inference('simplify', [status(thm)], [zip_derived_cl1109])).
% 0.58/1.00  thf(zip_derived_cl1122, plain,
% 0.58/1.00      (( (familiar @ three @ five)
% 0.58/1.00        |  (familiar @ three @ four)
% 0.58/1.00        |  (familiar @ one @ two))),
% 0.58/1.00      inference('sup-', [status(thm)], [zip_derived_cl748, zip_derived_cl1116])).
% 0.58/1.00  thf(zip_derived_cl910, plain,
% 0.58/1.00      (( (familiar @ one @ two) |  (familiar @ one @ three))),
% 0.58/1.00      inference('clc', [status(thm)], [zip_derived_cl909, zip_derived_cl296])).
% 0.58/1.00  thf(zip_derived_cl1092, plain,
% 0.58/1.00      (![X0 : $i]:
% 0.58/1.00         ( (familiar @ one @ two)
% 0.58/1.00          | ~ (familiar @ one @ X0)
% 0.58/1.00          | ~ (familiar @ X0 @ five))),
% 0.58/1.00      inference('sup-', [status(thm)], [zip_derived_cl1091, zip_derived_cl13])).
% 0.58/1.00  thf(zip_derived_cl1108, plain,
% 0.58/1.00      (( (familiar @ one @ two)
% 0.58/1.00        | ~ (familiar @ three @ five)
% 0.58/1.00        |  (familiar @ one @ two))),
% 0.58/1.00      inference('sup-', [status(thm)], [zip_derived_cl910, zip_derived_cl1092])).
% 0.58/1.00  thf(zip_derived_cl1115, plain,
% 0.58/1.00      ((~ (familiar @ three @ five) |  (familiar @ one @ two))),
% 0.58/1.00      inference('simplify', [status(thm)], [zip_derived_cl1108])).
% 0.58/1.00  thf(zip_derived_cl1157, plain,
% 0.58/1.00      (( (familiar @ one @ two) |  (familiar @ three @ four))),
% 0.58/1.00      inference('clc', [status(thm)], [zip_derived_cl1122, zip_derived_cl1115])).
% 0.58/1.00  thf(zip_derived_cl1023, plain,
% 0.58/1.00      ((~ (familiar @ three @ four) |  (familiar @ one @ two))),
% 0.58/1.00      inference('simplify', [status(thm)], [zip_derived_cl1016])).
% 0.58/1.00  thf(zip_derived_cl1158, plain, ( (familiar @ one @ two)),
% 0.58/1.00      inference('clc', [status(thm)], [zip_derived_cl1157, zip_derived_cl1023])).
% 0.58/1.00  thf(zip_derived_cl493, plain,
% 0.58/1.00      (![X0 : $i]:
% 0.58/1.00         ( (familiar @ one @ three)
% 0.58/1.00          |  (familiar @ one @ four)
% 0.58/1.00          | ~ (familiar @ one @ X0)
% 0.58/1.00          | ~ (familiar @ X0 @ six))),
% 0.58/1.00      inference('sup-', [status(thm)], [zip_derived_cl492, zip_derived_cl13])).
% 0.58/1.00  thf(zip_derived_cl1161, plain,
% 0.58/1.00      ((~ (familiar @ two @ six)
% 0.58/1.00        |  (familiar @ one @ four)
% 0.58/1.00        |  (familiar @ one @ three))),
% 0.58/1.00      inference('sup-', [status(thm)], [zip_derived_cl1158, zip_derived_cl493])).
% 0.58/1.00  thf(zip_derived_cl1173, plain,
% 0.58/1.00      (( (familiar @ one @ four)
% 0.58/1.00        |  (familiar @ one @ three)
% 0.58/1.00        |  (familiar @ two @ five)
% 0.58/1.00        |  (familiar @ one @ three)
% 0.58/1.00        |  (familiar @ one @ four))),
% 0.58/1.00      inference('sup-', [status(thm)], [zip_derived_cl578, zip_derived_cl1161])).
% 0.58/1.00  thf(zip_derived_cl1174, plain,
% 0.58/1.00      (( (familiar @ two @ five)
% 0.58/1.00        |  (familiar @ one @ three)
% 0.58/1.00        |  (familiar @ one @ four))),
% 0.58/1.00      inference('simplify', [status(thm)], [zip_derived_cl1173])).
% 0.58/1.00  thf(zip_derived_cl1158, plain, ( (familiar @ one @ two)),
% 0.58/1.00      inference('clc', [status(thm)], [zip_derived_cl1157, zip_derived_cl1023])).
% 0.58/1.00  thf(zip_derived_cl260, plain,
% 0.58/1.00      (( (familiar @ one @ four)
% 0.58/1.00        |  (familiar @ one @ three)
% 0.58/1.00        |  (familiar @ one @ five))),
% 0.58/1.00      inference('clc', [status(thm)], [zip_derived_cl204, zip_derived_cl168])).
% 0.58/1.00  thf(zip_derived_cl13, plain,
% 0.58/1.00      (![X0 : $i, X1 : $i, X2 : $i]:
% 0.58/1.00         (~ (familiar @ X0 @ X1)
% 0.58/1.00          | ~ (familiar @ X2 @ X1)
% 0.58/1.00          | ~ (familiar @ X0 @ X2))),
% 0.58/1.00      inference('cnf', [status(esa)], [zf_stmt_1])).
% 0.58/1.00  thf(zip_derived_cl261, plain,
% 0.58/1.00      (![X0 : $i]:
% 0.58/1.00         ( (familiar @ one @ three)
% 0.58/1.00          |  (familiar @ one @ four)
% 0.58/1.00          | ~ (familiar @ one @ X0)
% 0.58/1.00          | ~ (familiar @ X0 @ five))),
% 0.58/1.00      inference('sup-', [status(thm)], [zip_derived_cl260, zip_derived_cl13])).
% 0.58/1.00  thf(zip_derived_cl1160, plain,
% 0.58/1.00      ((~ (familiar @ two @ five)
% 0.58/1.00        |  (familiar @ one @ four)
% 0.58/1.00        |  (familiar @ one @ three))),
% 0.58/1.00      inference('sup-', [status(thm)], [zip_derived_cl1158, zip_derived_cl261])).
% 0.58/1.00  thf(zip_derived_cl1175, plain,
% 0.58/1.00      (( (familiar @ one @ four) |  (familiar @ one @ three))),
% 0.58/1.00      inference('clc', [status(thm)], [zip_derived_cl1174, zip_derived_cl1160])).
% 0.58/1.00  thf(zip_derived_cl12, plain,
% 0.58/1.00      (![X0 : $i, X1 : $i]:
% 0.58/1.00         ( (familiar @ X0 @ X1)
% 0.58/1.00          |  (not_familiar @ X0 @ X1)
% 0.58/1.00          | ~ (person @ X0)
% 0.58/1.00          | ~ (person @ X1)
% 0.58/1.00          | ~ (after @ X0 @ X1))),
% 0.58/1.00      inference('cnf', [status(esa)], [familiar_or_not])).
% 0.58/1.00  thf(zip_derived_cl42, plain, ( (after @ four @ six)),
% 0.58/1.00      inference('sup-', [status(thm)], [zip_derived_cl10, zip_derived_cl28])).
% 0.58/1.00  thf(zip_derived_cl111, plain,
% 0.58/1.00      (![X0 : $i]:
% 0.58/1.00         (~ (after @ X0 @ six)
% 0.58/1.00          | ~ (person @ X0)
% 0.58/1.00          |  (familiar @ X0 @ six)
% 0.58/1.00          |  (familiar @ two @ six)
% 0.58/1.00          | ~ (not_familiar @ two @ X0))),
% 0.58/1.00      inference('demod', [status(thm)], [zip_derived_cl110, zip_derived_cl5])).
% 0.58/1.00  thf(zip_derived_cl543, plain,
% 0.58/1.00      ((~ (not_familiar @ two @ four)
% 0.58/1.00        |  (familiar @ two @ six)
% 0.58/1.00        |  (familiar @ four @ six)
% 0.58/1.00        | ~ (person @ four))),
% 0.58/1.00      inference('sup-', [status(thm)], [zip_derived_cl42, zip_derived_cl111])).
% 0.58/1.00  thf(zip_derived_cl3, plain, ( (person @ four)),
% 0.58/1.00      inference('cnf', [status(esa)], [person4])).
% 0.58/1.00  thf(zip_derived_cl549, plain,
% 0.58/1.00      ((~ (not_familiar @ two @ four)
% 0.58/1.00        |  (familiar @ two @ six)
% 0.58/1.00        |  (familiar @ four @ six))),
% 0.58/1.00      inference('demod', [status(thm)], [zip_derived_cl543, zip_derived_cl3])).
% 0.58/1.00  thf(zip_derived_cl556, plain,
% 0.58/1.00      ((~ (after @ two @ four)
% 0.58/1.00        | ~ (person @ four)
% 0.58/1.00        | ~ (person @ two)
% 0.58/1.00        |  (familiar @ two @ four)
% 0.58/1.00        |  (familiar @ four @ six)
% 0.58/1.00        |  (familiar @ two @ six))),
% 0.58/1.00      inference('sup-', [status(thm)], [zip_derived_cl12, zip_derived_cl549])).
% 0.58/1.00  thf(zip_derived_cl32, plain, ( (after @ two @ four)),
% 0.58/1.00      inference('sup-', [status(thm)], [zip_derived_cl8, zip_derived_cl25])).
% 0.58/1.00  thf(zip_derived_cl3, plain, ( (person @ four)),
% 0.58/1.00      inference('cnf', [status(esa)], [person4])).
% 0.58/1.00  thf(zip_derived_cl1, plain, ( (person @ two)),
% 0.58/1.00      inference('cnf', [status(esa)], [person2])).
% 0.58/1.00  thf(zip_derived_cl557, plain,
% 0.58/1.00      (( (familiar @ two @ four)
% 0.58/1.00        |  (familiar @ four @ six)
% 0.58/1.00        |  (familiar @ two @ six))),
% 0.58/1.00      inference('demod', [status(thm)],
% 0.58/1.00                [zip_derived_cl556, zip_derived_cl32, zip_derived_cl3, 
% 0.58/1.00                 zip_derived_cl1])).
% 0.58/1.00  thf(zip_derived_cl1175, plain,
% 0.58/1.00      (( (familiar @ one @ four) |  (familiar @ one @ three))),
% 0.58/1.00      inference('clc', [status(thm)], [zip_derived_cl1174, zip_derived_cl1160])).
% 0.58/1.00  thf(zip_derived_cl166, plain,
% 0.58/1.00      (( (familiar @ one @ three)
% 0.58/1.00        |  (familiar @ three @ five)
% 0.58/1.00        |  (familiar @ one @ five))),
% 0.58/1.00      inference('demod', [status(thm)],
% 0.58/1.00                [zip_derived_cl165, zip_derived_cl26, zip_derived_cl2, 
% 0.58/1.00                 zip_derived_cl0])).
% 0.58/1.00  thf(zip_derived_cl243, plain,
% 0.58/1.00      (![X0 : $i]:
% 0.58/1.00         ( (familiar @ one @ six)
% 0.58/1.00          |  (familiar @ one @ three)
% 0.58/1.00          | ~ (familiar @ three @ X0)
% 0.58/1.00          | ~ (familiar @ X0 @ six))),
% 0.58/1.00      inference('sup-', [status(thm)], [zip_derived_cl231, zip_derived_cl13])).
% 0.58/1.00  thf(zip_derived_cl275, plain,
% 0.58/1.00      (( (familiar @ one @ five)
% 0.58/1.00        |  (familiar @ one @ three)
% 0.58/1.00        | ~ (familiar @ five @ six)
% 0.58/1.00        |  (familiar @ one @ three)
% 0.58/1.00        |  (familiar @ one @ six))),
% 0.58/1.00      inference('sup-', [status(thm)], [zip_derived_cl166, zip_derived_cl243])).
% 0.58/1.00  thf(zip_derived_cl278, plain,
% 0.58/1.00      (( (familiar @ one @ six)
% 0.58/1.00        | ~ (familiar @ five @ six)
% 0.58/1.00        |  (familiar @ one @ three)
% 0.58/1.00        |  (familiar @ one @ five))),
% 0.58/1.00      inference('simplify', [status(thm)], [zip_derived_cl275])).
% 0.58/1.00  thf(zip_derived_cl235, plain,
% 0.58/1.00      (( (familiar @ one @ five)
% 0.58/1.00        |  (familiar @ five @ six)
% 0.58/1.00        |  (familiar @ one @ six))),
% 0.58/1.00      inference('demod', [status(thm)],
% 0.58/1.00                [zip_derived_cl234, zip_derived_cl40, zip_derived_cl4, 
% 0.58/1.00                 zip_derived_cl0])).
% 0.58/1.00  thf(zip_derived_cl654, plain,
% 0.58/1.00      (( (familiar @ one @ five)
% 0.58/1.00        |  (familiar @ one @ three)
% 0.58/1.00        |  (familiar @ one @ six))),
% 0.58/1.00      inference('clc', [status(thm)], [zip_derived_cl278, zip_derived_cl235])).
% 0.58/1.00  thf(zip_derived_cl13, plain,
% 0.58/1.00      (![X0 : $i, X1 : $i, X2 : $i]:
% 0.58/1.00         (~ (familiar @ X0 @ X1)
% 0.58/1.00          | ~ (familiar @ X2 @ X1)
% 0.58/1.00          | ~ (familiar @ X0 @ X2))),
% 0.58/1.00      inference('cnf', [status(esa)], [zf_stmt_1])).
% 0.58/1.00  thf(zip_derived_cl655, plain,
% 0.58/1.00      (![X0 : $i]:
% 0.58/1.00         ( (familiar @ one @ three)
% 0.58/1.00          |  (familiar @ one @ five)
% 0.58/1.00          | ~ (familiar @ one @ X0)
% 0.58/1.00          | ~ (familiar @ X0 @ six))),
% 0.58/1.00      inference('sup-', [status(thm)], [zip_derived_cl654, zip_derived_cl13])).
% 0.58/1.00  thf(zip_derived_cl1177, plain,
% 0.58/1.00      (( (familiar @ one @ three)
% 0.58/1.00        | ~ (familiar @ four @ six)
% 0.58/1.00        |  (familiar @ one @ five)
% 0.58/1.00        |  (familiar @ one @ three))),
% 0.58/1.00      inference('sup-', [status(thm)], [zip_derived_cl1175, zip_derived_cl655])).
% 0.58/1.00  thf(zip_derived_cl1180, plain,
% 0.58/1.00      (( (familiar @ one @ five)
% 0.58/1.00        | ~ (familiar @ four @ six)
% 0.58/1.00        |  (familiar @ one @ three))),
% 0.58/1.00      inference('simplify', [status(thm)], [zip_derived_cl1177])).
% 0.58/1.00  thf(zip_derived_cl1189, plain,
% 0.58/1.00      (( (familiar @ two @ six)
% 0.58/1.00        |  (familiar @ two @ four)
% 0.58/1.00        |  (familiar @ one @ three)
% 0.58/1.00        |  (familiar @ one @ five))),
% 0.58/1.00      inference('sup-', [status(thm)], [zip_derived_cl557, zip_derived_cl1180])).
% 0.58/1.00  thf(zip_derived_cl1158, plain, ( (familiar @ one @ two)),
% 0.58/1.00      inference('clc', [status(thm)], [zip_derived_cl1157, zip_derived_cl1023])).
% 0.58/1.00  thf(zip_derived_cl655, plain,
% 0.58/1.00      (![X0 : $i]:
% 0.58/1.00         ( (familiar @ one @ three)
% 0.58/1.00          |  (familiar @ one @ five)
% 0.58/1.00          | ~ (familiar @ one @ X0)
% 0.58/1.00          | ~ (familiar @ X0 @ six))),
% 0.58/1.00      inference('sup-', [status(thm)], [zip_derived_cl654, zip_derived_cl13])).
% 0.58/1.00  thf(zip_derived_cl1162, plain,
% 0.58/1.00      ((~ (familiar @ two @ six)
% 0.58/1.00        |  (familiar @ one @ five)
% 0.58/1.00        |  (familiar @ one @ three))),
% 0.58/1.00      inference('sup-', [status(thm)], [zip_derived_cl1158, zip_derived_cl655])).
% 0.58/1.00  thf(zip_derived_cl1212, plain,
% 0.58/1.00      (( (familiar @ one @ five)
% 0.58/1.00        |  (familiar @ one @ three)
% 0.58/1.00        |  (familiar @ two @ four))),
% 0.58/1.00      inference('clc', [status(thm)], [zip_derived_cl1189, zip_derived_cl1162])).
% 0.58/1.00  thf(zip_derived_cl1158, plain, ( (familiar @ one @ two)),
% 0.58/1.00      inference('clc', [status(thm)], [zip_derived_cl1157, zip_derived_cl1023])).
% 0.58/1.00  thf(zip_derived_cl1175, plain,
% 0.58/1.00      (( (familiar @ one @ four) |  (familiar @ one @ three))),
% 0.58/1.00      inference('clc', [status(thm)], [zip_derived_cl1174, zip_derived_cl1160])).
% 0.58/1.00  thf(zip_derived_cl13, plain,
% 0.58/1.00      (![X0 : $i, X1 : $i, X2 : $i]:
% 0.58/1.00         (~ (familiar @ X0 @ X1)
% 0.58/1.00          | ~ (familiar @ X2 @ X1)
% 0.58/1.00          | ~ (familiar @ X0 @ X2))),
% 0.58/1.00      inference('cnf', [status(esa)], [zf_stmt_1])).
% 0.58/1.00  thf(zip_derived_cl1176, plain,
% 0.58/1.00      (![X0 : $i]:
% 0.58/1.00         ( (familiar @ one @ three)
% 0.58/1.00          | ~ (familiar @ one @ X0)
% 0.58/1.00          | ~ (familiar @ X0 @ four))),
% 0.58/1.00      inference('sup-', [status(thm)], [zip_derived_cl1175, zip_derived_cl13])).
% 0.58/1.00  thf(zip_derived_cl1181, plain,
% 0.58/1.00      ((~ (familiar @ two @ four) |  (familiar @ one @ three))),
% 0.58/1.00      inference('sup-', [status(thm)], [zip_derived_cl1158, zip_derived_cl1176])).
% 0.58/1.00  thf(zip_derived_cl1213, plain,
% 0.58/1.00      (( (familiar @ one @ three) |  (familiar @ one @ five))),
% 0.58/1.00      inference('clc', [status(thm)], [zip_derived_cl1212, zip_derived_cl1181])).
% 0.58/1.00  thf(zip_derived_cl13, plain,
% 0.58/1.00      (![X0 : $i, X1 : $i, X2 : $i]:
% 0.58/1.00         (~ (familiar @ X0 @ X1)
% 0.58/1.00          | ~ (familiar @ X2 @ X1)
% 0.58/1.00          | ~ (familiar @ X0 @ X2))),
% 0.58/1.00      inference('cnf', [status(esa)], [zf_stmt_1])).
% 0.58/1.00  thf(zip_derived_cl1214, plain,
% 0.58/1.00      (![X0 : $i]:
% 0.58/1.00         ( (familiar @ one @ three)
% 0.58/1.00          | ~ (familiar @ one @ X0)
% 0.58/1.00          | ~ (familiar @ X0 @ five))),
% 0.58/1.00      inference('sup-', [status(thm)], [zip_derived_cl1213, zip_derived_cl13])).
% 0.58/1.00  thf(zip_derived_cl1223, plain,
% 0.58/1.00      (( (familiar @ one @ three)
% 0.58/1.00        | ~ (familiar @ four @ five)
% 0.58/1.00        |  (familiar @ one @ three))),
% 0.58/1.00      inference('sup-', [status(thm)], [zip_derived_cl1175, zip_derived_cl1214])).
% 0.58/1.00  thf(zip_derived_cl1226, plain,
% 0.58/1.00      ((~ (familiar @ four @ five) |  (familiar @ one @ three))),
% 0.58/1.00      inference('simplify', [status(thm)], [zip_derived_cl1223])).
% 0.58/1.00  thf(zip_derived_cl1230, plain,
% 0.58/1.00      (( (familiar @ two @ five)
% 0.58/1.00        |  (familiar @ two @ four)
% 0.58/1.00        |  (familiar @ one @ three))),
% 0.58/1.00      inference('sup-', [status(thm)], [zip_derived_cl367, zip_derived_cl1226])).
% 0.58/1.00  thf(zip_derived_cl1158, plain, ( (familiar @ one @ two)),
% 0.58/1.00      inference('clc', [status(thm)], [zip_derived_cl1157, zip_derived_cl1023])).
% 0.58/1.00  thf(zip_derived_cl1214, plain,
% 0.58/1.00      (![X0 : $i]:
% 0.58/1.00         ( (familiar @ one @ three)
% 0.58/1.00          | ~ (familiar @ one @ X0)
% 0.58/1.00          | ~ (familiar @ X0 @ five))),
% 0.58/1.00      inference('sup-', [status(thm)], [zip_derived_cl1213, zip_derived_cl13])).
% 0.58/1.00  thf(zip_derived_cl1222, plain,
% 0.58/1.00      ((~ (familiar @ two @ five) |  (familiar @ one @ three))),
% 0.58/1.00      inference('sup-', [status(thm)], [zip_derived_cl1158, zip_derived_cl1214])).
% 0.58/1.00  thf(zip_derived_cl1259, plain,
% 0.58/1.00      (( (familiar @ one @ three) |  (familiar @ two @ four))),
% 0.58/1.00      inference('clc', [status(thm)], [zip_derived_cl1230, zip_derived_cl1222])).
% 0.58/1.00  thf(zip_derived_cl1181, plain,
% 0.58/1.00      ((~ (familiar @ two @ four) |  (familiar @ one @ three))),
% 0.58/1.00      inference('sup-', [status(thm)], [zip_derived_cl1158, zip_derived_cl1176])).
% 0.58/1.00  thf(zip_derived_cl1260, plain, ( (familiar @ one @ three)),
% 0.58/1.00      inference('clc', [status(thm)], [zip_derived_cl1259, zip_derived_cl1181])).
% 0.58/1.00  thf(zip_derived_cl12, plain,
% 0.58/1.00      (![X0 : $i, X1 : $i]:
% 0.58/1.00         ( (familiar @ X0 @ X1)
% 0.58/1.00          |  (not_familiar @ X0 @ X1)
% 0.58/1.00          | ~ (person @ X0)
% 0.58/1.00          | ~ (person @ X1)
% 0.58/1.00          | ~ (after @ X0 @ X1))),
% 0.58/1.00      inference('cnf', [status(esa)], [familiar_or_not])).
% 0.58/1.00  thf(zip_derived_cl36, plain, ( (after @ three @ five)),
% 0.58/1.00      inference('sup-', [status(thm)], [zip_derived_cl9, zip_derived_cl27])).
% 0.58/1.00  thf(zip_derived_cl109, plain,
% 0.58/1.00      (![X0 : $i]:
% 0.58/1.00         (~ (after @ X0 @ five)
% 0.58/1.00          | ~ (person @ X0)
% 0.58/1.00          |  (familiar @ X0 @ five)
% 0.58/1.00          |  (familiar @ two @ five)
% 0.58/1.00          | ~ (not_familiar @ two @ X0))),
% 0.58/1.00      inference('demod', [status(thm)], [zip_derived_cl108, zip_derived_cl4])).
% 0.58/1.00  thf(zip_derived_cl354, plain,
% 0.58/1.00      ((~ (not_familiar @ two @ three)
% 0.58/1.00        |  (familiar @ two @ five)
% 0.58/1.00        |  (familiar @ three @ five)
% 0.58/1.00        | ~ (person @ three))),
% 0.58/1.00      inference('sup-', [status(thm)], [zip_derived_cl36, zip_derived_cl109])).
% 0.58/1.00  thf(zip_derived_cl2, plain, ( (person @ three)),
% 0.58/1.00      inference('cnf', [status(esa)], [person3])).
% 0.58/1.00  thf(zip_derived_cl359, plain,
% 0.58/1.00      ((~ (not_familiar @ two @ three)
% 0.58/1.00        |  (familiar @ two @ five)
% 0.58/1.00        |  (familiar @ three @ five))),
% 0.58/1.00      inference('demod', [status(thm)], [zip_derived_cl354, zip_derived_cl2])).
% 0.58/1.00  thf(zip_derived_cl364, plain,
% 0.58/1.00      ((~ (after @ two @ three)
% 0.58/1.00        | ~ (person @ three)
% 0.58/1.00        | ~ (person @ two)
% 0.58/1.00        |  (familiar @ two @ three)
% 0.58/1.00        |  (familiar @ three @ five)
% 0.58/1.00        |  (familiar @ two @ five))),
% 0.58/1.00      inference('sup-', [status(thm)], [zip_derived_cl12, zip_derived_cl359])).
% 0.58/1.00  thf(zip_derived_cl7, plain, ( (after @ two @ three)),
% 0.58/1.00      inference('cnf', [status(esa)], [order2])).
% 0.58/1.00  thf(zip_derived_cl2, plain, ( (person @ three)),
% 0.58/1.00      inference('cnf', [status(esa)], [person3])).
% 0.58/1.00  thf(zip_derived_cl1, plain, ( (person @ two)),
% 0.58/1.00      inference('cnf', [status(esa)], [person2])).
% 0.58/1.00  thf(zip_derived_cl365, plain,
% 0.58/1.00      (( (familiar @ two @ three)
% 0.58/1.00        |  (familiar @ three @ five)
% 0.58/1.00        |  (familiar @ two @ five))),
% 0.58/1.00      inference('demod', [status(thm)],
% 0.58/1.00                [zip_derived_cl364, zip_derived_cl7, zip_derived_cl2, 
% 0.58/1.00                 zip_derived_cl1])).
% 0.58/1.00  thf(zip_derived_cl1158, plain, ( (familiar @ one @ two)),
% 0.58/1.00      inference('clc', [status(thm)], [zip_derived_cl1157, zip_derived_cl1023])).
% 0.58/1.00  thf(zip_derived_cl1260, plain, ( (familiar @ one @ three)),
% 0.58/1.00      inference('clc', [status(thm)], [zip_derived_cl1259, zip_derived_cl1181])).
% 0.58/1.00  thf(zip_derived_cl13, plain,
% 0.58/1.00      (![X0 : $i, X1 : $i, X2 : $i]:
% 0.58/1.00         (~ (familiar @ X0 @ X1)
% 0.58/1.00          | ~ (familiar @ X2 @ X1)
% 0.58/1.00          | ~ (familiar @ X0 @ X2))),
% 0.58/1.00      inference('cnf', [status(esa)], [zf_stmt_1])).
% 0.58/1.00  thf(zip_derived_cl1261, plain,
% 0.58/1.00      (![X0 : $i]: (~ (familiar @ one @ X0) | ~ (familiar @ X0 @ three))),
% 0.58/1.00      inference('sup-', [status(thm)], [zip_derived_cl1260, zip_derived_cl13])).
% 0.58/1.00  thf(zip_derived_cl1264, plain, (~ (familiar @ two @ three)),
% 0.58/1.00      inference('sup-', [status(thm)], [zip_derived_cl1158, zip_derived_cl1261])).
% 0.58/1.00  thf(zip_derived_cl1270, plain,
% 0.58/1.00      (( (familiar @ three @ five) |  (familiar @ two @ five))),
% 0.58/1.00      inference('demod', [status(thm)], [zip_derived_cl365, zip_derived_cl1264])).
% 0.58/1.00  thf(zip_derived_cl1260, plain, ( (familiar @ one @ three)),
% 0.58/1.00      inference('clc', [status(thm)], [zip_derived_cl1259, zip_derived_cl1181])).
% 0.58/1.00  thf(zip_derived_cl12, plain,
% 0.58/1.00      (![X0 : $i, X1 : $i]:
% 0.58/1.00         ( (familiar @ X0 @ X1)
% 0.58/1.00          |  (not_familiar @ X0 @ X1)
% 0.58/1.00          | ~ (person @ X0)
% 0.58/1.00          | ~ (person @ X1)
% 0.58/1.00          | ~ (after @ X0 @ X1))),
% 0.58/1.00      inference('cnf', [status(esa)], [familiar_or_not])).
% 0.58/1.00  thf(zip_derived_cl44, plain, ( (after @ three @ six)),
% 0.58/1.00      inference('sup-', [status(thm)], [zip_derived_cl42, zip_derived_cl27])).
% 0.58/1.00  thf(zip_derived_cl111, plain,
% 0.58/1.00      (![X0 : $i]:
% 0.58/1.00         (~ (after @ X0 @ six)
% 0.58/1.00          | ~ (person @ X0)
% 0.58/1.00          |  (familiar @ X0 @ six)
% 0.58/1.00          |  (familiar @ two @ six)
% 0.58/1.00          | ~ (not_familiar @ two @ X0))),
% 0.58/1.00      inference('demod', [status(thm)], [zip_derived_cl110, zip_derived_cl5])).
% 0.58/1.00  thf(zip_derived_cl542, plain,
% 0.58/1.00      ((~ (not_familiar @ two @ three)
% 0.58/1.00        |  (familiar @ two @ six)
% 0.58/1.00        |  (familiar @ three @ six)
% 0.58/1.00        | ~ (person @ three))),
% 0.58/1.00      inference('sup-', [status(thm)], [zip_derived_cl44, zip_derived_cl111])).
% 0.58/1.00  thf(zip_derived_cl2, plain, ( (person @ three)),
% 0.58/1.00      inference('cnf', [status(esa)], [person3])).
% 0.58/1.00  thf(zip_derived_cl548, plain,
% 0.58/1.00      ((~ (not_familiar @ two @ three)
% 0.58/1.00        |  (familiar @ two @ six)
% 0.58/1.00        |  (familiar @ three @ six))),
% 0.58/1.00      inference('demod', [status(thm)], [zip_derived_cl542, zip_derived_cl2])).
% 0.58/1.00  thf(zip_derived_cl554, plain,
% 0.58/1.00      ((~ (after @ two @ three)
% 0.58/1.00        | ~ (person @ three)
% 0.58/1.00        | ~ (person @ two)
% 0.58/1.00        |  (familiar @ two @ three)
% 0.58/1.00        |  (familiar @ three @ six)
% 0.58/1.00        |  (familiar @ two @ six))),
% 0.58/1.00      inference('sup-', [status(thm)], [zip_derived_cl12, zip_derived_cl548])).
% 0.58/1.00  thf(zip_derived_cl7, plain, ( (after @ two @ three)),
% 0.58/1.00      inference('cnf', [status(esa)], [order2])).
% 0.58/1.00  thf(zip_derived_cl2, plain, ( (person @ three)),
% 0.58/1.00      inference('cnf', [status(esa)], [person3])).
% 0.58/1.00  thf(zip_derived_cl1, plain, ( (person @ two)),
% 0.58/1.00      inference('cnf', [status(esa)], [person2])).
% 0.58/1.00  thf(zip_derived_cl555, plain,
% 0.58/1.00      (( (familiar @ two @ three)
% 0.58/1.00        |  (familiar @ three @ six)
% 0.58/1.00        |  (familiar @ two @ six))),
% 0.58/1.00      inference('demod', [status(thm)],
% 0.58/1.00                [zip_derived_cl554, zip_derived_cl7, zip_derived_cl2, 
% 0.58/1.00                 zip_derived_cl1])).
% 0.58/1.00  thf(zip_derived_cl1264, plain, (~ (familiar @ two @ three)),
% 0.58/1.00      inference('sup-', [status(thm)], [zip_derived_cl1158, zip_derived_cl1261])).
% 0.58/1.00  thf(zip_derived_cl1273, plain,
% 0.58/1.00      (( (familiar @ three @ six) |  (familiar @ two @ six))),
% 0.58/1.00      inference('demod', [status(thm)], [zip_derived_cl555, zip_derived_cl1264])).
% 0.58/1.00  thf(zip_derived_cl1260, plain, ( (familiar @ one @ three)),
% 0.58/1.00      inference('clc', [status(thm)], [zip_derived_cl1259, zip_derived_cl1181])).
% 0.58/1.00  thf(zip_derived_cl168, plain,
% 0.58/1.00      (( (familiar @ one @ four)
% 0.58/1.00        |  (familiar @ four @ five)
% 0.58/1.00        |  (familiar @ one @ five))),
% 0.58/1.00      inference('demod', [status(thm)],
% 0.58/1.00                [zip_derived_cl167, zip_derived_cl34, zip_derived_cl3, 
% 0.58/1.00                 zip_derived_cl0])).
% 0.58/1.00  thf(zip_derived_cl233, plain,
% 0.58/1.00      (( (familiar @ one @ four)
% 0.58/1.00        |  (familiar @ four @ six)
% 0.58/1.00        |  (familiar @ one @ six))),
% 0.58/1.00      inference('demod', [status(thm)],
% 0.58/1.00                [zip_derived_cl232, zip_derived_cl34, zip_derived_cl3, 
% 0.58/1.00                 zip_derived_cl0])).
% 0.58/1.00  thf(zip_derived_cl13, plain,
% 0.58/1.00      (![X0 : $i, X1 : $i, X2 : $i]:
% 0.58/1.00         (~ (familiar @ X0 @ X1)
% 0.58/1.00          | ~ (familiar @ X2 @ X1)
% 0.58/1.00          | ~ (familiar @ X0 @ X2))),
% 0.58/1.00      inference('cnf', [status(esa)], [zf_stmt_1])).
% 0.58/1.00  thf(zip_derived_cl248, plain,
% 0.58/1.00      (![X0 : $i]:
% 0.58/1.00         ( (familiar @ one @ six)
% 0.58/1.00          |  (familiar @ one @ four)
% 0.58/1.00          | ~ (familiar @ four @ X0)
% 0.58/1.00          | ~ (familiar @ X0 @ six))),
% 0.58/1.00      inference('sup-', [status(thm)], [zip_derived_cl233, zip_derived_cl13])).
% 0.58/1.00  thf(zip_derived_cl282, plain,
% 0.58/1.00      (( (familiar @ one @ five)
% 0.58/1.00        |  (familiar @ one @ four)
% 0.58/1.00        | ~ (familiar @ five @ six)
% 0.58/1.00        |  (familiar @ one @ four)
% 0.58/1.00        |  (familiar @ one @ six))),
% 0.58/1.00      inference('sup-', [status(thm)], [zip_derived_cl168, zip_derived_cl248])).
% 0.58/1.00  thf(zip_derived_cl284, plain,
% 0.58/1.00      (( (familiar @ one @ six)
% 0.58/1.00        | ~ (familiar @ five @ six)
% 0.58/1.00        |  (familiar @ one @ four)
% 0.58/1.00        |  (familiar @ one @ five))),
% 0.58/1.00      inference('simplify', [status(thm)], [zip_derived_cl282])).
% 0.58/1.00  thf(zip_derived_cl235, plain,
% 0.58/1.00      (( (familiar @ one @ five)
% 0.58/1.00        |  (familiar @ five @ six)
% 0.58/1.00        |  (familiar @ one @ six))),
% 0.58/1.00      inference('demod', [status(thm)],
% 0.58/1.00                [zip_derived_cl234, zip_derived_cl40, zip_derived_cl4, 
% 0.58/1.00                 zip_derived_cl0])).
% 0.58/1.00  thf(zip_derived_cl688, plain,
% 0.58/1.00      (( (familiar @ one @ five)
% 0.58/1.00        |  (familiar @ one @ four)
% 0.58/1.00        |  (familiar @ one @ six))),
% 0.58/1.00      inference('clc', [status(thm)], [zip_derived_cl284, zip_derived_cl235])).
% 0.58/1.00  thf(zip_derived_cl13, plain,
% 0.58/1.00      (![X0 : $i, X1 : $i, X2 : $i]:
% 0.58/1.00         (~ (familiar @ X0 @ X1)
% 0.58/1.00          | ~ (familiar @ X2 @ X1)
% 0.58/1.00          | ~ (familiar @ X0 @ X2))),
% 0.58/1.00      inference('cnf', [status(esa)], [zf_stmt_1])).
% 0.58/1.00  thf(zip_derived_cl689, plain,
% 0.58/1.00      (![X0 : $i]:
% 0.58/1.00         ( (familiar @ one @ four)
% 0.58/1.00          |  (familiar @ one @ five)
% 0.58/1.00          | ~ (familiar @ one @ X0)
% 0.58/1.00          | ~ (familiar @ X0 @ six))),
% 0.58/1.00      inference('sup-', [status(thm)], [zip_derived_cl688, zip_derived_cl13])).
% 0.58/1.00  thf(zip_derived_cl1262, plain,
% 0.58/1.00      ((~ (familiar @ three @ six)
% 0.58/1.00        |  (familiar @ one @ five)
% 0.58/1.00        |  (familiar @ one @ four))),
% 0.58/1.00      inference('sup-', [status(thm)], [zip_derived_cl1260, zip_derived_cl689])).
% 0.58/1.00  thf(zip_derived_cl1319, plain,
% 0.58/1.00      (( (familiar @ two @ six)
% 0.58/1.00        |  (familiar @ one @ four)
% 0.58/1.00        |  (familiar @ one @ five))),
% 0.58/1.00      inference('sup-', [status(thm)], [zip_derived_cl1273, zip_derived_cl1262])).
% 0.58/1.00  thf(zip_derived_cl1158, plain, ( (familiar @ one @ two)),
% 0.58/1.00      inference('clc', [status(thm)], [zip_derived_cl1157, zip_derived_cl1023])).
% 0.58/1.00  thf(zip_derived_cl689, plain,
% 0.58/1.00      (![X0 : $i]:
% 0.58/1.00         ( (familiar @ one @ four)
% 0.58/1.00          |  (familiar @ one @ five)
% 0.58/1.00          | ~ (familiar @ one @ X0)
% 0.58/1.00          | ~ (familiar @ X0 @ six))),
% 0.58/1.00      inference('sup-', [status(thm)], [zip_derived_cl688, zip_derived_cl13])).
% 0.58/1.00  thf(zip_derived_cl1163, plain,
% 0.58/1.00      ((~ (familiar @ two @ six)
% 0.58/1.00        |  (familiar @ one @ five)
% 0.58/1.00        |  (familiar @ one @ four))),
% 0.58/1.00      inference('sup-', [status(thm)], [zip_derived_cl1158, zip_derived_cl689])).
% 0.58/1.00  thf(zip_derived_cl1338, plain,
% 0.58/1.00      (( (familiar @ one @ five) |  (familiar @ one @ four))),
% 0.58/1.00      inference('clc', [status(thm)], [zip_derived_cl1319, zip_derived_cl1163])).
% 0.58/1.00  thf(zip_derived_cl13, plain,
% 0.58/1.00      (![X0 : $i, X1 : $i, X2 : $i]:
% 0.58/1.00         (~ (familiar @ X0 @ X1)
% 0.58/1.00          | ~ (familiar @ X2 @ X1)
% 0.58/1.00          | ~ (familiar @ X0 @ X2))),
% 0.58/1.00      inference('cnf', [status(esa)], [zf_stmt_1])).
% 0.58/1.00  thf(zip_derived_cl1339, plain,
% 0.58/1.00      (![X0 : $i]:
% 0.58/1.00         ( (familiar @ one @ four)
% 0.58/1.00          | ~ (familiar @ one @ X0)
% 0.58/1.00          | ~ (familiar @ X0 @ five))),
% 0.58/1.00      inference('sup-', [status(thm)], [zip_derived_cl1338, zip_derived_cl13])).
% 0.58/1.00  thf(zip_derived_cl1343, plain,
% 0.58/1.00      ((~ (familiar @ three @ five) |  (familiar @ one @ four))),
% 0.58/1.00      inference('sup-', [status(thm)], [zip_derived_cl1260, zip_derived_cl1339])).
% 0.58/1.00  thf(zip_derived_cl1347, plain,
% 0.58/1.00      (( (familiar @ two @ five) |  (familiar @ one @ four))),
% 0.58/1.00      inference('sup-', [status(thm)], [zip_derived_cl1270, zip_derived_cl1343])).
% 0.58/1.00  thf(zip_derived_cl1158, plain, ( (familiar @ one @ two)),
% 0.58/1.00      inference('clc', [status(thm)], [zip_derived_cl1157, zip_derived_cl1023])).
% 0.58/1.00  thf(zip_derived_cl1339, plain,
% 0.58/1.00      (![X0 : $i]:
% 0.58/1.00         ( (familiar @ one @ four)
% 0.58/1.00          | ~ (familiar @ one @ X0)
% 0.58/1.00          | ~ (familiar @ X0 @ five))),
% 0.58/1.00      inference('sup-', [status(thm)], [zip_derived_cl1338, zip_derived_cl13])).
% 0.58/1.00  thf(zip_derived_cl1342, plain,
% 0.58/1.00      ((~ (familiar @ two @ five) |  (familiar @ one @ four))),
% 0.58/1.00      inference('sup-', [status(thm)], [zip_derived_cl1158, zip_derived_cl1339])).
% 0.58/1.00  thf(zip_derived_cl1352, plain, ( (familiar @ one @ four)),
% 0.58/1.00      inference('clc', [status(thm)], [zip_derived_cl1347, zip_derived_cl1342])).
% 0.58/1.00  thf(zip_derived_cl13, plain,
% 0.58/1.00      (![X0 : $i, X1 : $i, X2 : $i]:
% 0.58/1.00         (~ (familiar @ X0 @ X1)
% 0.58/1.00          | ~ (familiar @ X2 @ X1)
% 0.58/1.00          | ~ (familiar @ X0 @ X2))),
% 0.58/1.00      inference('cnf', [status(esa)], [zf_stmt_1])).
% 0.58/1.00  thf(zip_derived_cl1353, plain,
% 0.58/1.00      (![X0 : $i]: (~ (familiar @ one @ X0) | ~ (familiar @ X0 @ four))),
% 0.58/1.00      inference('sup-', [status(thm)], [zip_derived_cl1352, zip_derived_cl13])).
% 0.58/1.00  thf(zip_derived_cl1357, plain, (~ (familiar @ three @ four)),
% 0.58/1.00      inference('sup-', [status(thm)], [zip_derived_cl1260, zip_derived_cl1353])).
% 0.58/1.00  thf(zip_derived_cl12, plain,
% 0.58/1.00      (![X0 : $i, X1 : $i]:
% 0.58/1.00         ( (familiar @ X0 @ X1)
% 0.58/1.00          |  (not_familiar @ X0 @ X1)
% 0.58/1.00          | ~ (person @ X0)
% 0.58/1.00          | ~ (person @ X1)
% 0.58/1.00          | ~ (after @ X0 @ X1))),
% 0.58/1.00      inference('cnf', [status(esa)], [familiar_or_not])).
% 0.58/1.00  thf(zip_derived_cl8, plain, ( (after @ three @ four)),
% 0.58/1.00      inference('cnf', [status(esa)], [order3])).
% 0.58/1.00  thf(zip_derived_cl12, plain,
% 0.58/1.00      (![X0 : $i, X1 : $i]:
% 0.58/1.00         ( (familiar @ X0 @ X1)
% 0.58/1.00          |  (not_familiar @ X0 @ X1)
% 0.58/1.00          | ~ (person @ X0)
% 0.58/1.00          | ~ (person @ X1)
% 0.58/1.00          | ~ (after @ X0 @ X1))),
% 0.58/1.00      inference('cnf', [status(esa)], [familiar_or_not])).
% 0.58/1.00  thf(zip_derived_cl32, plain, ( (after @ two @ four)),
% 0.58/1.00      inference('sup-', [status(thm)], [zip_derived_cl8, zip_derived_cl25])).
% 0.58/1.00  thf(zip_derived_cl60, plain,
% 0.58/1.00      (![X0 : $i, X1 : $i, X2 : $i]:
% 0.58/1.00         (~ (after @ X1 @ X0)
% 0.58/1.00          | ~ (person @ X0)
% 0.58/1.00          | ~ (person @ X1)
% 0.58/1.00          |  (familiar @ X1 @ X0)
% 0.58/1.00          | ~ (not_familiar @ X1 @ X2)
% 0.58/1.00          | ~ (not_familiar @ X2 @ X0))),
% 0.58/1.00      inference('sup-', [status(thm)], [zip_derived_cl12, zip_derived_cl14])).
% 0.58/1.00  thf(zip_derived_cl70, plain,
% 0.58/1.00      (![X0 : $i]:
% 0.58/1.00         (~ (not_familiar @ X0 @ four)
% 0.58/1.00          | ~ (not_familiar @ two @ X0)
% 0.58/1.00          |  (familiar @ two @ four)
% 0.58/1.00          | ~ (person @ two)
% 0.58/1.00          | ~ (person @ four))),
% 0.58/1.00      inference('sup-', [status(thm)], [zip_derived_cl32, zip_derived_cl60])).
% 0.58/1.00  thf(zip_derived_cl1, plain, ( (person @ two)),
% 0.58/1.00      inference('cnf', [status(esa)], [person2])).
% 0.58/1.00  thf(zip_derived_cl3, plain, ( (person @ four)),
% 0.58/1.00      inference('cnf', [status(esa)], [person4])).
% 0.58/1.00  thf(zip_derived_cl85, plain,
% 0.58/1.00      (![X0 : $i]:
% 0.58/1.00         (~ (not_familiar @ X0 @ four)
% 0.58/1.00          | ~ (not_familiar @ two @ X0)
% 0.58/1.00          |  (familiar @ two @ four))),
% 0.58/1.00      inference('demod', [status(thm)],
% 0.58/1.00                [zip_derived_cl70, zip_derived_cl1, zip_derived_cl3])).
% 0.58/1.00  thf(zip_derived_cl106, plain,
% 0.58/1.00      (![X0 : $i]:
% 0.58/1.00         (~ (after @ X0 @ four)
% 0.58/1.00          | ~ (person @ four)
% 0.58/1.00          | ~ (person @ X0)
% 0.58/1.00          |  (familiar @ X0 @ four)
% 0.58/1.00          |  (familiar @ two @ four)
% 0.58/1.00          | ~ (not_familiar @ two @ X0))),
% 0.58/1.00      inference('sup-', [status(thm)], [zip_derived_cl12, zip_derived_cl85])).
% 0.58/1.00  thf(zip_derived_cl3, plain, ( (person @ four)),
% 0.58/1.00      inference('cnf', [status(esa)], [person4])).
% 0.58/1.00  thf(zip_derived_cl107, plain,
% 0.58/1.00      (![X0 : $i]:
% 0.58/1.00         (~ (after @ X0 @ four)
% 0.58/1.00          | ~ (person @ X0)
% 0.58/1.00          |  (familiar @ X0 @ four)
% 0.58/1.00          |  (familiar @ two @ four)
% 0.58/1.00          | ~ (not_familiar @ two @ X0))),
% 0.58/1.00      inference('demod', [status(thm)], [zip_derived_cl106, zip_derived_cl3])).
% 0.58/1.00  thf(zip_derived_cl342, plain,
% 0.58/1.00      ((~ (not_familiar @ two @ three)
% 0.58/1.00        |  (familiar @ two @ four)
% 0.58/1.00        |  (familiar @ three @ four)
% 0.58/1.00        | ~ (person @ three))),
% 0.58/1.00      inference('sup-', [status(thm)], [zip_derived_cl8, zip_derived_cl107])).
% 0.58/1.00  thf(zip_derived_cl2, plain, ( (person @ three)),
% 0.58/1.00      inference('cnf', [status(esa)], [person3])).
% 0.58/1.00  thf(zip_derived_cl346, plain,
% 0.58/1.00      ((~ (not_familiar @ two @ three)
% 0.58/1.00        |  (familiar @ two @ four)
% 0.58/1.00        |  (familiar @ three @ four))),
% 0.58/1.00      inference('demod', [status(thm)], [zip_derived_cl342, zip_derived_cl2])).
% 0.58/1.00  thf(zip_derived_cl350, plain,
% 0.58/1.00      ((~ (after @ two @ three)
% 0.58/1.00        | ~ (person @ three)
% 0.58/1.00        | ~ (person @ two)
% 0.58/1.00        |  (familiar @ two @ three)
% 0.58/1.00        |  (familiar @ three @ four)
% 0.58/1.00        |  (familiar @ two @ four))),
% 0.58/1.00      inference('sup-', [status(thm)], [zip_derived_cl12, zip_derived_cl346])).
% 0.58/1.00  thf(zip_derived_cl7, plain, ( (after @ two @ three)),
% 0.58/1.00      inference('cnf', [status(esa)], [order2])).
% 0.58/1.00  thf(zip_derived_cl2, plain, ( (person @ three)),
% 0.58/1.00      inference('cnf', [status(esa)], [person3])).
% 0.58/1.00  thf(zip_derived_cl1, plain, ( (person @ two)),
% 0.58/1.00      inference('cnf', [status(esa)], [person2])).
% 0.58/1.00  thf(zip_derived_cl351, plain,
% 0.58/1.00      (( (familiar @ two @ three)
% 0.58/1.00        |  (familiar @ three @ four)
% 0.58/1.00        |  (familiar @ two @ four))),
% 0.58/1.00      inference('demod', [status(thm)],
% 0.58/1.00                [zip_derived_cl350, zip_derived_cl7, zip_derived_cl2, 
% 0.58/1.00                 zip_derived_cl1])).
% 0.58/1.00  thf(zip_derived_cl1264, plain, (~ (familiar @ two @ three)),
% 0.58/1.00      inference('sup-', [status(thm)], [zip_derived_cl1158, zip_derived_cl1261])).
% 0.58/1.00  thf(zip_derived_cl1269, plain,
% 0.58/1.00      (( (familiar @ three @ four) |  (familiar @ two @ four))),
% 0.58/1.00      inference('demod', [status(thm)], [zip_derived_cl351, zip_derived_cl1264])).
% 0.58/1.00  thf(zip_derived_cl1158, plain, ( (familiar @ one @ two)),
% 0.58/1.00      inference('clc', [status(thm)], [zip_derived_cl1157, zip_derived_cl1023])).
% 0.58/1.00  thf(zip_derived_cl1353, plain,
% 0.58/1.00      (![X0 : $i]: (~ (familiar @ one @ X0) | ~ (familiar @ X0 @ four))),
% 0.58/1.00      inference('sup-', [status(thm)], [zip_derived_cl1352, zip_derived_cl13])).
% 0.58/1.00  thf(zip_derived_cl1356, plain, (~ (familiar @ two @ four)),
% 0.58/1.00      inference('sup-', [status(thm)], [zip_derived_cl1158, zip_derived_cl1353])).
% 0.58/1.00  thf(zip_derived_cl1361, plain, ( (familiar @ three @ four)),
% 0.58/1.00      inference('demod', [status(thm)],
% 0.58/1.00                [zip_derived_cl1269, zip_derived_cl1356])).
% 0.58/1.00  thf(zip_derived_cl1376, plain, ($false),
% 0.58/1.00      inference('demod', [status(thm)],
% 0.58/1.00                [zip_derived_cl1357, zip_derived_cl1361])).
% 0.58/1.00  
% 0.58/1.00  % SZS output end Refutation
% 0.58/1.00  
% 0.58/1.00  
% 0.58/1.00  % /export/starexec/sandbox/solver/bin/fo/fo1_lcnf.sh running for 50s
% 0.58/1.00  % Terminating...
% 0.58/1.07  % Runner terminated.
% 1.94/1.09  % Zipperpin 1.5 exiting
%------------------------------------------------------------------------------