TSTP Solution File: LCL004-1 by Bliksem---1.12

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : Bliksem---1.12
% Problem  : LCL004-1 : TPTP v8.1.0. Released v1.0.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : bliksem %s

% 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  : 0s
% DateTime : Sun Jul 17 07:49:05 EDT 2022

% Result   : Unsatisfiable 1.17s 1.57s
% Output   : Refutation 1.17s
% Verified : 
% SZS Type : -

% Comments : 
%------------------------------------------------------------------------------
%----WARNING: Could not form TPTP format derivation
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.04/0.12  % Problem  : LCL004-1 : TPTP v8.1.0. Released v1.0.0.
% 0.04/0.13  % Command  : bliksem %s
% 0.13/0.34  % Computer : n013.cluster.edu
% 0.13/0.34  % Model    : x86_64 x86_64
% 0.13/0.34  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.13/0.34  % Memory   : 8042.1875MB
% 0.13/0.34  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.13/0.34  % CPULimit : 300
% 0.13/0.34  % DateTime : Sun Jul  3 11:06:59 EDT 2022
% 0.13/0.34  % CPUTime  : 
% 1.17/1.57  *** allocated 10000 integers for termspace/termends
% 1.17/1.57  *** allocated 10000 integers for clauses
% 1.17/1.57  *** allocated 10000 integers for justifications
% 1.17/1.57  Bliksem 1.12
% 1.17/1.57  
% 1.17/1.57  
% 1.17/1.57  Automatic Strategy Selection
% 1.17/1.57  
% 1.17/1.57  Clauses:
% 1.17/1.57  [
% 1.17/1.57     [ ~( 'is_a_theorem'( or( not( X ), Y ) ) ), ~( 'is_a_theorem'( X ) ), 
% 1.17/1.57    'is_a_theorem'( Y ) ],
% 1.17/1.57     [ 'is_a_theorem'( or( not( or( not( or( not( X ), Y ) ), or( Z, or( T, U
% 1.17/1.57     ) ) ) ), or( not( or( not( T ), X ) ), or( Z, or( U, X ) ) ) ) ) ],
% 1.17/1.57     [ ~( 'is_a_theorem'( or( not( a ), or( b, a ) ) ) ) ]
% 1.17/1.57  ] .
% 1.17/1.57  
% 1.17/1.57  
% 1.17/1.57  percentage equality = 0.000000, percentage horn = 1.000000
% 1.17/1.57  This is a near-Horn, non-equality  problem
% 1.17/1.57  
% 1.17/1.57  
% 1.17/1.57  Options Used:
% 1.17/1.57  
% 1.17/1.57  useres =            1
% 1.17/1.57  useparamod =        0
% 1.17/1.57  useeqrefl =         0
% 1.17/1.57  useeqfact =         0
% 1.17/1.57  usefactor =         1
% 1.17/1.57  usesimpsplitting =  0
% 1.17/1.57  usesimpdemod =      0
% 1.17/1.57  usesimpres =        4
% 1.17/1.57  
% 1.17/1.57  resimpinuse      =  1000
% 1.17/1.57  resimpclauses =     20000
% 1.17/1.57  substype =          standard
% 1.17/1.57  backwardsubs =      1
% 1.17/1.57  selectoldest =      5
% 1.17/1.57  
% 1.17/1.57  litorderings [0] =  split
% 1.17/1.57  litorderings [1] =  liftord
% 1.17/1.57  
% 1.17/1.57  termordering =      none
% 1.17/1.57  
% 1.17/1.57  litapriori =        1
% 1.17/1.57  termapriori =       0
% 1.17/1.57  litaposteriori =    0
% 1.17/1.57  termaposteriori =   0
% 1.17/1.57  demodaposteriori =  0
% 1.17/1.57  ordereqreflfact =   0
% 1.17/1.57  
% 1.17/1.57  litselect =         negative
% 1.17/1.57  
% 1.17/1.57  maxweight =         30000
% 1.17/1.57  maxdepth =          30000
% 1.17/1.57  maxlength =         115
% 1.17/1.57  maxnrvars =         195
% 1.17/1.57  excuselevel =       0
% 1.17/1.57  increasemaxweight = 0
% 1.17/1.57  
% 1.17/1.57  maxselected =       10000000
% 1.17/1.57  maxnrclauses =      10000000
% 1.17/1.57  
% 1.17/1.57  showgenerated =    0
% 1.17/1.57  showkept =         0
% 1.17/1.57  showselected =     0
% 1.17/1.57  showdeleted =      0
% 1.17/1.57  showresimp =       1
% 1.17/1.57  showstatus =       2000
% 1.17/1.57  
% 1.17/1.57  prologoutput =     1
% 1.17/1.57  nrgoals =          5000000
% 1.17/1.57  totalproof =       1
% 1.17/1.57  
% 1.17/1.57  Symbols occurring in the translation:
% 1.17/1.57  
% 1.17/1.57  {}  [0, 0]      (w:1, o:2, a:1, s:1, b:0), 
% 1.17/1.57  .  [1, 2]      (w:1, o:23, a:1, s:1, b:0), 
% 1.17/1.57  !  [4, 1]      (w:1, o:16, a:1, s:1, b:0), 
% 1.17/1.57  =  [13, 2]      (w:1, o:0, a:0, s:1, b:0), 
% 1.17/1.57  ==>  [14, 2]      (w:1, o:0, a:0, s:1, b:0), 
% 1.17/1.57  not  [40, 1]      (w:1, o:21, a:1, s:1, b:0), 
% 1.17/1.57  or  [42, 2]      (w:1, o:48, a:1, s:1, b:0), 
% 1.17/1.57  'is_a_theorem'  [43, 1]      (w:1, o:22, a:1, s:1, b:0), 
% 1.17/1.57  a  [47, 0]      (w:1, o:14, a:1, s:1, b:0), 
% 1.17/1.57  b  [48, 0]      (w:1, o:15, a:1, s:1, b:0).
% 1.17/1.57  
% 1.17/1.57  
% 1.17/1.57  Starting Search:
% 1.17/1.57  
% 1.17/1.57  Resimplifying inuse:
% 1.17/1.57  Done
% 1.17/1.57  
% 1.17/1.57  
% 1.17/1.57  Intermediate Status:
% 1.17/1.57  Generated:    7447
% 1.17/1.57  Kept:         2017
% 1.17/1.57  Inuse:        272
% 1.17/1.57  Deleted:      85
% 1.17/1.57  Deletedinuse: 18
% 1.17/1.57  
% 1.17/1.57  Resimplifying inuse:
% 1.17/1.57  Done
% 1.17/1.57  
% 1.17/1.57  Resimplifying inuse:
% 1.17/1.57  Done
% 1.17/1.57  
% 1.17/1.57  
% 1.17/1.57  Intermediate Status:
% 1.17/1.57  Generated:    21392
% 1.17/1.57  Kept:         4017
% 1.17/1.57  Inuse:        647
% 1.17/1.57  Deleted:      639
% 1.17/1.57  Deletedinuse: 283
% 1.17/1.57  
% 1.17/1.57  Resimplifying inuse:
% 1.17/1.57  Done
% 1.17/1.57  
% 1.17/1.57  Resimplifying inuse:
% 1.17/1.57  Done
% 1.17/1.57  
% 1.17/1.57  
% 1.17/1.57  Intermediate Status:
% 1.17/1.57  Generated:    34130
% 1.17/1.57  Kept:         6032
% 1.17/1.57  Inuse:        853
% 1.17/1.57  Deleted:      717
% 1.17/1.57  Deletedinuse: 318
% 1.17/1.57  
% 1.17/1.57  Resimplifying inuse:
% 1.17/1.57  Done
% 1.17/1.57  
% 1.17/1.57  Resimplifying inuse:
% 1.17/1.57  Done
% 1.17/1.57  
% 1.17/1.57  
% 1.17/1.57  Intermediate Status:
% 1.17/1.57  Generated:    58479
% 1.17/1.57  Kept:         8032
% 1.17/1.57  Inuse:        1271
% 1.17/1.57  Deleted:      933
% 1.17/1.57  Deletedinuse: 340
% 1.17/1.57  
% 1.17/1.57  Resimplifying inuse:
% 1.17/1.57  Done
% 1.17/1.57  
% 1.17/1.57  Resimplifying inuse:
% 1.17/1.57  Done
% 1.17/1.57  
% 1.17/1.57  
% 1.17/1.57  Intermediate Status:
% 1.17/1.57  Generated:    85580
% 1.17/1.57  Kept:         10050
% 1.17/1.57  Inuse:        1637
% 1.17/1.57  Deleted:      1405
% 1.17/1.57  Deletedinuse: 682
% 1.17/1.57  
% 1.17/1.57  Resimplifying inuse:
% 1.17/1.57  Done
% 1.17/1.57  
% 1.17/1.57  
% 1.17/1.57  Bliksems!, er is een bewijs:
% 1.17/1.57  % SZS status Unsatisfiable
% 1.17/1.57  % SZS output start Refutation
% 1.17/1.57  
% 1.17/1.57  clause( 0, [ ~( 'is_a_theorem'( or( not( X ), Y ) ) ), 'is_a_theorem'( Y )
% 1.17/1.57    , ~( 'is_a_theorem'( X ) ) ] )
% 1.17/1.57  .
% 1.17/1.57  clause( 1, [ 'is_a_theorem'( or( not( or( not( or( not( X ), Y ) ), or( Z, 
% 1.17/1.57    or( T, U ) ) ) ), or( not( or( not( T ), X ) ), or( Z, or( U, X ) ) ) ) )
% 1.17/1.57     ] )
% 1.17/1.57  .
% 1.17/1.57  clause( 2, [ ~( 'is_a_theorem'( or( not( a ), or( b, a ) ) ) ) ] )
% 1.17/1.57  .
% 1.17/1.57  clause( 3, [ 'is_a_theorem'( W ), ~( 'is_a_theorem'( or( not( or( not( or( 
% 1.17/1.57    not( or( not( X ), Y ) ), or( Z, or( T, U ) ) ) ), or( not( or( not( T )
% 1.17/1.57    , X ) ), or( Z, or( U, X ) ) ) ) ), W ) ) ) ] )
% 1.17/1.57  .
% 1.17/1.57  clause( 4, [ 'is_a_theorem'( or( not( or( not( X ), or( not( Y ), Z ) ) ), 
% 1.17/1.57    or( not( or( not( T ), Y ) ), or( or( U, Y ), or( not( Y ), Z ) ) ) ) ) ]
% 1.17/1.57     )
% 1.17/1.57  .
% 1.17/1.57  clause( 5, [ 'is_a_theorem'( or( not( or( not( X ), or( not( Y ), Z ) ) ), 
% 1.17/1.57    or( or( T, or( not( Y ), Z ) ), or( not( or( not( Y ), Z ) ), or( U, or( 
% 1.17/1.57    W, Z ) ) ) ) ) ) ] )
% 1.17/1.57  .
% 1.17/1.57  clause( 6, [ 'is_a_theorem'( W ), ~( 'is_a_theorem'( or( not( or( not( or( 
% 1.17/1.57    not( X ), or( not( Y ), Z ) ) ), or( not( or( not( T ), Y ) ), or( or( U
% 1.17/1.57    , Y ), or( not( Y ), Z ) ) ) ) ), W ) ) ) ] )
% 1.17/1.57  .
% 1.17/1.57  clause( 7, [ 'is_a_theorem'( or( or( X, or( not( or( not( Y ), Z ) ), or( T
% 1.17/1.57    , or( U, Z ) ) ) ), or( not( or( not( or( not( Y ), Z ) ), or( T, or( U, 
% 1.17/1.57    Z ) ) ) ), or( W, or( V0, or( T, or( U, Z ) ) ) ) ) ) ) ] )
% 1.17/1.57  .
% 1.17/1.57  clause( 11, [ 'is_a_theorem'( or( not( or( not( or( X, Y ) ), Z ) ), or( 
% 1.17/1.57    not( or( not( T ), Y ) ), or( or( not( Y ), U ), Z ) ) ) ) ] )
% 1.17/1.57  .
% 1.17/1.57  clause( 14, [ 'is_a_theorem'( W ), ~( 'is_a_theorem'( or( not( or( not( or( 
% 1.17/1.57    not( or( X, Y ) ), Z ) ), or( not( or( not( T ), Y ) ), or( or( not( Y )
% 1.17/1.57    , U ), Z ) ) ) ), W ) ) ) ] )
% 1.17/1.57  .
% 1.17/1.57  clause( 18, [ 'is_a_theorem'( or( not( or( not( or( not( X ), Y ) ), or( Z
% 1.17/1.57    , X ) ) ), or( not( or( not( T ), X ) ), or( U, or( Z, X ) ) ) ) ) ] )
% 1.17/1.57  .
% 1.17/1.57  clause( 19, [ 'is_a_theorem'( or( not( or( not( X ), or( or( not( Y ), Z )
% 1.17/1.57    , Y ) ) ), or( T, or( not( or( not( U ), Y ) ), or( or( not( Y ), Z ), Y
% 1.17/1.57     ) ) ) ) ) ] )
% 1.17/1.57  .
% 1.17/1.57  clause( 21, [ 'is_a_theorem'( or( not( or( not( X ), or( not( Y ), or( Z, Y
% 1.17/1.57     ) ) ) ), or( T, or( not( or( not( U ), Y ) ), or( not( Y ), or( Z, Y ) )
% 1.17/1.57     ) ) ) ) ] )
% 1.17/1.57  .
% 1.17/1.57  clause( 23, [ 'is_a_theorem'( V1 ), ~( 'is_a_theorem'( or( not( or( or( X, 
% 1.17/1.57    or( not( or( not( Y ), Z ) ), or( T, or( U, Z ) ) ) ), or( not( or( not( 
% 1.17/1.57    or( not( Y ), Z ) ), or( T, or( U, Z ) ) ) ), or( W, or( V0, or( T, or( U
% 1.17/1.57    , Z ) ) ) ) ) ) ), V1 ) ) ) ] )
% 1.17/1.57  .
% 1.17/1.57  clause( 28, [ 'is_a_theorem'( W ), ~( 'is_a_theorem'( or( not( or( not( or( 
% 1.17/1.57    not( X ), or( or( not( Y ), Z ), Y ) ) ), or( T, or( not( or( not( U ), Y
% 1.17/1.57     ) ), or( or( not( Y ), Z ), Y ) ) ) ) ), W ) ) ) ] )
% 1.17/1.57  .
% 1.17/1.57  clause( 31, [ 'is_a_theorem'( or( X, or( not( or( not( Y ), or( not( Z ), T
% 1.17/1.57     ) ) ), or( not( or( not( Z ), T ) ), or( U, or( not( Z ), T ) ) ) ) ) )
% 1.17/1.57     ] )
% 1.17/1.57  .
% 1.17/1.57  clause( 33, [ 'is_a_theorem'( or( not( or( not( X ), or( not( Y ), Z ) ) )
% 1.17/1.57    , or( not( or( not( Y ), Z ) ), or( T, or( not( Y ), Z ) ) ) ) ) ] )
% 1.17/1.57  .
% 1.17/1.57  clause( 42, [ 'is_a_theorem'( U ), ~( 'is_a_theorem'( or( not( or( not( or( 
% 1.17/1.57    not( X ), or( not( Y ), Z ) ) ), or( not( or( not( Y ), Z ) ), or( T, or( 
% 1.17/1.57    not( Y ), Z ) ) ) ) ), U ) ) ) ] )
% 1.17/1.57  .
% 1.17/1.57  clause( 51, [ 'is_a_theorem'( or( not( or( not( X ), or( Y, or( not( Z ), T
% 1.17/1.57     ) ) ) ), or( U, or( not( or( not( Z ), T ) ), or( Y, or( not( Z ), T ) )
% 1.17/1.57     ) ) ) ) ] )
% 1.17/1.57  .
% 1.17/1.57  clause( 53, [ 'is_a_theorem'( or( not( or( not( X ), Y ) ), or( not( or( 
% 1.17/1.57    not( Z ), T ) ), or( or( not( Z ), T ), Y ) ) ) ) ] )
% 1.17/1.57  .
% 1.17/1.57  clause( 64, [ 'is_a_theorem'( U ), ~( 'is_a_theorem'( or( not( or( not( or( 
% 1.17/1.57    not( X ), Y ) ), or( not( or( not( Z ), T ) ), or( or( not( Z ), T ), Y )
% 1.17/1.57     ) ) ), U ) ) ) ] )
% 1.17/1.57  .
% 1.17/1.57  clause( 94, [ 'is_a_theorem'( or( not( or( not( or( not( X ), Y ) ), Z ) )
% 1.17/1.57    , or( not( or( not( X ), Y ) ), or( T, Z ) ) ) ) ] )
% 1.17/1.57  .
% 1.17/1.57  clause( 101, [ 'is_a_theorem'( U ), ~( 'is_a_theorem'( or( not( or( not( or( 
% 1.17/1.57    not( or( not( X ), Y ) ), Z ) ), or( not( or( not( X ), Y ) ), or( T, Z )
% 1.17/1.57     ) ) ), U ) ) ) ] )
% 1.17/1.57  .
% 1.17/1.57  clause( 211, [ 'is_a_theorem'( or( X, or( not( or( not( Y ), Z ) ), or( not( 
% 1.17/1.57    or( not( T ), U ) ), or( not( Y ), Z ) ) ) ) ) ] )
% 1.17/1.57  .
% 1.17/1.57  clause( 213, [ 'is_a_theorem'( or( not( or( not( X ), Y ) ), or( not( or( 
% 1.17/1.57    not( Z ), T ) ), or( not( X ), Y ) ) ) ) ] )
% 1.17/1.57  .
% 1.17/1.57  clause( 215, [ 'is_a_theorem'( U ), ~( 'is_a_theorem'( or( not( or( not( or( 
% 1.17/1.57    not( X ), Y ) ), or( not( or( not( Z ), T ) ), or( not( X ), Y ) ) ) ), U
% 1.17/1.57     ) ) ) ] )
% 1.17/1.57  .
% 1.17/1.57  clause( 218, [ 'is_a_theorem'( or( not( or( not( X ), Y ) ), or( Z, or( not( 
% 1.17/1.57    or( not( T ), U ) ), or( not( X ), Y ) ) ) ) ) ] )
% 1.17/1.57  .
% 1.17/1.57  clause( 230, [ 'is_a_theorem'( W ), ~( 'is_a_theorem'( or( not( or( not( or( 
% 1.17/1.57    not( X ), Y ) ), or( Z, or( not( or( not( T ), U ) ), or( not( X ), Y ) )
% 1.17/1.57     ) ) ), W ) ) ) ] )
% 1.17/1.57  .
% 1.17/1.57  clause( 257, [ 'is_a_theorem'( or( not( or( not( X ), or( not( or( not( Y )
% 1.17/1.57    , Z ) ), or( or( not( Z ), T ), Z ) ) ) ), or( U, or( W, or( not( or( not( 
% 1.17/1.57    Y ), Z ) ), or( or( not( Z ), T ), Z ) ) ) ) ) ) ] )
% 1.17/1.57  .
% 1.17/1.57  clause( 377, [ 'is_a_theorem'( or( not( or( not( not( or( not( X ), Y ) ) )
% 1.17/1.57    , Z ) ), or( T, or( or( not( Z ), U ), Z ) ) ) ) ] )
% 1.17/1.57  .
% 1.17/1.57  clause( 399, [ 'is_a_theorem'( W ), ~( 'is_a_theorem'( or( not( or( not( or( 
% 1.17/1.57    not( not( or( not( X ), Y ) ) ), Z ) ), or( T, or( or( not( Z ), U ), Z )
% 1.17/1.57     ) ) ), W ) ) ) ] )
% 1.17/1.57  .
% 1.17/1.57  clause( 452, [ 'is_a_theorem'( or( X, or( not( or( not( Y ), Z ) ), or( not( 
% 1.17/1.57    Z ), or( or( not( Z ), T ), Z ) ) ) ) ) ] )
% 1.17/1.57  .
% 1.17/1.57  clause( 457, [ 'is_a_theorem'( or( not( or( not( X ), Y ) ), or( not( Y ), 
% 1.17/1.57    or( or( not( Y ), Z ), Y ) ) ) ) ] )
% 1.17/1.57  .
% 1.17/1.57  clause( 463, [ 'is_a_theorem'( T ), ~( 'is_a_theorem'( or( not( or( not( or( 
% 1.17/1.57    not( X ), Y ) ), or( not( Y ), or( or( not( Y ), Z ), Y ) ) ) ), T ) ) )
% 1.17/1.57     ] )
% 1.17/1.57  .
% 1.17/1.57  clause( 555, [ 'is_a_theorem'( or( not( or( not( or( not( X ), Y ) ), Z ) )
% 1.17/1.57    , or( not( X ), or( X, Z ) ) ) ) ] )
% 1.17/1.57  .
% 1.17/1.57  clause( 575, [ 'is_a_theorem'( T ), ~( 'is_a_theorem'( or( not( or( not( or( 
% 1.17/1.57    not( or( not( X ), Y ) ), Z ) ), or( not( X ), or( X, Z ) ) ) ), T ) ) )
% 1.17/1.57     ] )
% 1.17/1.57  .
% 1.17/1.57  clause( 872, [ 'is_a_theorem'( or( X, or( not( or( not( Y ), Z ) ), or( not( 
% 1.17/1.57    Z ), or( Z, Z ) ) ) ) ) ] )
% 1.17/1.57  .
% 1.17/1.57  clause( 876, [ 'is_a_theorem'( or( not( or( not( X ), Y ) ), or( not( Y ), 
% 1.17/1.57    or( Y, Y ) ) ) ) ] )
% 1.17/1.57  .
% 1.17/1.57  clause( 885, [ 'is_a_theorem'( Z ), ~( 'is_a_theorem'( or( not( or( not( or( 
% 1.17/1.57    not( X ), Y ) ), or( not( Y ), or( Y, Y ) ) ) ), Z ) ) ) ] )
% 1.17/1.57  .
% 1.17/1.57  clause( 1003, [ 'is_a_theorem'( or( not( or( not( X ), Y ) ), or( not( X )
% 1.17/1.57    , or( X, Y ) ) ) ) ] )
% 1.17/1.57  .
% 1.17/1.57  clause( 1013, [ 'is_a_theorem'( Z ), ~( 'is_a_theorem'( or( not( or( not( 
% 1.17/1.57    or( not( X ), Y ) ), or( not( X ), or( X, Y ) ) ) ), Z ) ) ) ] )
% 1.17/1.57  .
% 1.17/1.57  clause( 1227, [ 'is_a_theorem'( or( not( or( not( X ), X ) ), or( not( X )
% 1.17/1.57    , or( Y, X ) ) ) ) ] )
% 1.17/1.57  .
% 1.17/1.57  clause( 1235, [ 'is_a_theorem'( Z ), ~( 'is_a_theorem'( or( not( or( not( 
% 1.17/1.57    or( not( X ), X ) ), or( not( X ), or( Y, X ) ) ) ), Z ) ) ) ] )
% 1.17/1.57  .
% 1.17/1.57  clause( 1372, [ 'is_a_theorem'( or( X, or( not( or( not( Y ), Z ) ), or( 
% 1.17/1.57    not( Z ), or( T, Z ) ) ) ) ) ] )
% 1.17/1.57  .
% 1.17/1.57  clause( 1384, [ 'is_a_theorem'( or( not( or( not( X ), Y ) ), or( not( Y )
% 1.17/1.57    , or( Z, Y ) ) ) ) ] )
% 1.17/1.57  .
% 1.17/1.57  clause( 1395, [ 'is_a_theorem'( T ), ~( 'is_a_theorem'( or( not( or( not( 
% 1.17/1.57    or( not( X ), Y ) ), or( not( Y ), or( Z, Y ) ) ) ), T ) ) ) ] )
% 1.17/1.57  .
% 1.17/1.57  clause( 1558, [ 'is_a_theorem'( or( not( or( not( X ), or( Y, Z ) ) ), or( 
% 1.17/1.57    T, or( not( Z ), or( Y, Z ) ) ) ) ) ] )
% 1.17/1.57  .
% 1.17/1.57  clause( 1559, [ 'is_a_theorem'( or( not( or( not( X ), Y ) ), or( not( Z )
% 1.17/1.57    , or( Z, Y ) ) ) ) ] )
% 1.17/1.57  .
% 1.17/1.57  clause( 1574, [ 'is_a_theorem'( or( not( X ), or( X, or( Y, or( or( not( Z
% 1.17/1.57     ), T ), Z ) ) ) ) ) ] )
% 1.17/1.57  .
% 1.17/1.57  clause( 1579, [ 'is_a_theorem'( T ), ~( 'is_a_theorem'( or( not( or( not( 
% 1.17/1.57    or( not( X ), Y ) ), or( not( Z ), or( Z, Y ) ) ) ), T ) ) ) ] )
% 1.17/1.57  .
% 1.17/1.57  clause( 1687, [ 'is_a_theorem'( U ), ~( 'is_a_theorem'( or( not( or( not( X
% 1.17/1.57     ), or( X, or( Y, or( or( not( Z ), T ), Z ) ) ) ) ), U ) ) ) ] )
% 1.17/1.57  .
% 1.17/1.57  clause( 2075, [ 'is_a_theorem'( or( not( or( not( X ), Y ) ), or( not( X )
% 1.17/1.57    , or( Z, Y ) ) ) ) ] )
% 1.17/1.57  .
% 1.17/1.57  clause( 2083, [ 'is_a_theorem'( T ), ~( 'is_a_theorem'( or( not( or( not( 
% 1.17/1.57    or( not( X ), Y ) ), or( not( X ), or( Z, Y ) ) ) ), T ) ) ) ] )
% 1.17/1.57  .
% 1.17/1.57  clause( 2457, [ 'is_a_theorem'( or( X, or( not( or( Y, Z ) ), or( not( T )
% 1.17/1.57    , or( Y, Z ) ) ) ) ) ] )
% 1.17/1.57  .
% 1.17/1.57  clause( 2520, [ 'is_a_theorem'( or( not( or( X, Y ) ), or( not( Z ), or( X
% 1.17/1.57    , Y ) ) ) ) ] )
% 1.17/1.57  .
% 1.17/1.57  clause( 2524, [ 'is_a_theorem'( T ), ~( 'is_a_theorem'( or( not( or( not( 
% 1.17/1.57    or( X, Y ) ), or( not( Z ), or( X, Y ) ) ) ), T ) ) ) ] )
% 1.17/1.57  .
% 1.17/1.57  clause( 2622, [ 'is_a_theorem'( or( not( or( not( not( X ) ), X ) ), or( 
% 1.17/1.57    not( Y ), or( Z, X ) ) ) ) ] )
% 1.17/1.57  .
% 1.17/1.57  clause( 2647, [ 'is_a_theorem'( T ), ~( 'is_a_theorem'( or( not( or( not( 
% 1.17/1.57    or( not( not( X ) ), X ) ), or( not( Y ), or( Z, X ) ) ) ), T ) ) ) ] )
% 1.17/1.57  .
% 1.17/1.57  clause( 3596, [ 'is_a_theorem'( or( X, or( Y, or( not( or( not( Z ), T ) )
% 1.17/1.57    , or( or( not( T ), U ), T ) ) ) ) ) ] )
% 1.17/1.57  .
% 1.17/1.57  clause( 3598, [ 'is_a_theorem'( or( X, or( not( or( not( Y ), Z ) ), or( or( 
% 1.17/1.57    not( Z ), T ), Z ) ) ) ) ] )
% 1.17/1.57  .
% 1.17/1.57  clause( 3600, [ 'is_a_theorem'( or( not( or( not( X ), Y ) ), or( or( not( 
% 1.17/1.57    Y ), Z ), Y ) ) ) ] )
% 1.17/1.57  .
% 1.17/1.57  clause( 3609, [ 'is_a_theorem'( T ), ~( 'is_a_theorem'( or( not( or( not( 
% 1.17/1.57    or( not( X ), Y ) ), or( or( not( Y ), Z ), Y ) ) ), T ) ) ) ] )
% 1.17/1.57  .
% 1.17/1.57  clause( 3633, [ 'is_a_theorem'( or( not( or( not( X ), Y ) ), or( Z, or( or( 
% 1.17/1.57    not( Y ), T ), Y ) ) ) ) ] )
% 1.17/1.57  .
% 1.17/1.57  clause( 3648, [ 'is_a_theorem'( U ), ~( 'is_a_theorem'( or( not( or( not( 
% 1.17/1.57    or( not( X ), Y ) ), or( Z, or( or( not( Y ), T ), Y ) ) ) ), U ) ) ) ]
% 1.17/1.57     )
% 1.17/1.57  .
% 1.17/1.57  clause( 10525, [ 'is_a_theorem'( or( not( or( not( or( not( X ), Y ) ), Z )
% 1.17/1.57     ), or( T, or( X, Z ) ) ) ) ] )
% 1.17/1.57  .
% 1.17/1.57  clause( 10563, [ 'is_a_theorem'( or( X, or( Y, or( not( Z ), or( T, Z ) ) )
% 1.17/1.57     ) ) ] )
% 1.17/1.57  .
% 1.17/1.57  clause( 10778, [ 'is_a_theorem'( or( X, or( not( Y ), or( Z, Y ) ) ) ) ] )
% 1.17/1.57  .
% 1.17/1.57  clause( 10780, [ 'is_a_theorem'( or( not( X ), or( Y, X ) ) ) ] )
% 1.17/1.57  .
% 1.17/1.57  clause( 10783, [] )
% 1.17/1.57  .
% 1.17/1.57  
% 1.17/1.57  
% 1.17/1.57  % SZS output end Refutation
% 1.17/1.57  found a proof!
% 1.17/1.57  
% 1.17/1.57  % ABCDEFGHIJKLMNOPQRSTUVWXYZ
% 1.17/1.57  
% 1.17/1.57  initialclauses(
% 1.17/1.57  [ clause( 10785, [ ~( 'is_a_theorem'( or( not( X ), Y ) ) ), ~( 
% 1.17/1.57    'is_a_theorem'( X ) ), 'is_a_theorem'( Y ) ] )
% 1.17/1.57  , clause( 10786, [ 'is_a_theorem'( or( not( or( not( or( not( X ), Y ) ), 
% 1.17/1.57    or( Z, or( T, U ) ) ) ), or( not( or( not( T ), X ) ), or( Z, or( U, X )
% 1.17/1.57     ) ) ) ) ] )
% 1.17/1.57  , clause( 10787, [ ~( 'is_a_theorem'( or( not( a ), or( b, a ) ) ) ) ] )
% 1.17/1.57  ] ).
% 1.17/1.57  
% 1.17/1.57  
% 1.17/1.57  
% 1.17/1.57  subsumption(
% 1.17/1.57  clause( 0, [ ~( 'is_a_theorem'( or( not( X ), Y ) ) ), 'is_a_theorem'( Y )
% 1.17/1.57    , ~( 'is_a_theorem'( X ) ) ] )
% 1.17/1.57  , clause( 10785, [ ~( 'is_a_theorem'( or( not( X ), Y ) ) ), ~( 
% 1.17/1.57    'is_a_theorem'( X ) ), 'is_a_theorem'( Y ) ] )
% 1.17/1.57  , substitution( 0, [ :=( X, X ), :=( Y, Y )] ), permutation( 0, [ ==>( 0, 0
% 1.17/1.57     ), ==>( 1, 2 ), ==>( 2, 1 )] ) ).
% 1.17/1.57  
% 1.17/1.57  
% 1.17/1.57  subsumption(
% 1.17/1.57  clause( 1, [ 'is_a_theorem'( or( not( or( not( or( not( X ), Y ) ), or( Z, 
% 1.17/1.57    or( T, U ) ) ) ), or( not( or( not( T ), X ) ), or( Z, or( U, X ) ) ) ) )
% 1.17/1.57     ] )
% 1.17/1.57  , clause( 10786, [ 'is_a_theorem'( or( not( or( not( or( not( X ), Y ) ), 
% 1.17/1.57    or( Z, or( T, U ) ) ) ), or( not( or( not( T ), X ) ), or( Z, or( U, X )
% 1.17/1.57     ) ) ) ) ] )
% 1.17/1.57  , substitution( 0, [ :=( X, X ), :=( Y, Y ), :=( Z, Z ), :=( T, T ), :=( U
% 1.17/1.57    , U )] ), permutation( 0, [ ==>( 0, 0 )] ) ).
% 1.17/1.57  
% 1.17/1.57  
% 1.17/1.57  subsumption(
% 1.17/1.57  clause( 2, [ ~( 'is_a_theorem'( or( not( a ), or( b, a ) ) ) ) ] )
% 1.17/1.57  , clause( 10787, [ ~( 'is_a_theorem'( or( not( a ), or( b, a ) ) ) ) ] )
% 1.17/1.57  , substitution( 0, [] ), permutation( 0, [ ==>( 0, 0 )] ) ).
% 1.17/1.57  
% 1.17/1.57  
% 1.17/1.57  resolution(
% 1.17/1.57  clause( 10789, [ ~( 'is_a_theorem'( or( not( or( not( or( not( or( not( X )
% 1.17/1.57    , Y ) ), or( Z, or( T, U ) ) ) ), or( not( or( not( T ), X ) ), or( Z, or( 
% 1.17/1.57    U, X ) ) ) ) ), W ) ) ), 'is_a_theorem'( W ) ] )
% 1.17/1.57  , clause( 0, [ ~( 'is_a_theorem'( or( not( X ), Y ) ) ), 'is_a_theorem'( Y
% 1.17/1.57     ), ~( 'is_a_theorem'( X ) ) ] )
% 1.17/1.57  , 2, clause( 1, [ 'is_a_theorem'( or( not( or( not( or( not( X ), Y ) ), or( 
% 1.17/1.57    Z, or( T, U ) ) ) ), or( not( or( not( T ), X ) ), or( Z, or( U, X ) ) )
% 1.17/1.57     ) ) ] )
% 1.17/1.57  , 0, substitution( 0, [ :=( X, or( not( or( not( or( not( X ), Y ) ), or( Z
% 1.17/1.57    , or( T, U ) ) ) ), or( not( or( not( T ), X ) ), or( Z, or( U, X ) ) ) )
% 1.17/1.57     ), :=( Y, W )] ), substitution( 1, [ :=( X, X ), :=( Y, Y ), :=( Z, Z )
% 1.17/1.57    , :=( T, T ), :=( U, U )] )).
% 1.17/1.57  
% 1.17/1.57  
% 1.17/1.57  subsumption(
% 1.17/1.57  clause( 3, [ 'is_a_theorem'( W ), ~( 'is_a_theorem'( or( not( or( not( or( 
% 1.17/1.57    not( or( not( X ), Y ) ), or( Z, or( T, U ) ) ) ), or( not( or( not( T )
% 1.17/1.57    , X ) ), or( Z, or( U, X ) ) ) ) ), W ) ) ) ] )
% 1.17/1.57  , clause( 10789, [ ~( 'is_a_theorem'( or( not( or( not( or( not( or( not( X
% 1.17/1.57     ), Y ) ), or( Z, or( T, U ) ) ) ), or( not( or( not( T ), X ) ), or( Z, 
% 1.17/1.57    or( U, X ) ) ) ) ), W ) ) ), 'is_a_theorem'( W ) ] )
% 1.17/1.57  , substitution( 0, [ :=( X, X ), :=( Y, Y ), :=( Z, Z ), :=( T, T ), :=( U
% 1.17/1.57    , U ), :=( W, W )] ), permutation( 0, [ ==>( 0, 1 ), ==>( 1, 0 )] ) ).
% 1.17/1.57  
% 1.17/1.57  
% 1.17/1.57  resolution(
% 1.17/1.57  clause( 10790, [ 'is_a_theorem'( or( not( or( not( X ), or( not( Y ), Z ) )
% 1.17/1.57     ), or( not( or( not( T ), Y ) ), or( or( U, Y ), or( not( Y ), Z ) ) ) )
% 1.17/1.57     ) ] )
% 1.17/1.57  , clause( 3, [ 'is_a_theorem'( W ), ~( 'is_a_theorem'( or( not( or( not( or( 
% 1.17/1.57    not( or( not( X ), Y ) ), or( Z, or( T, U ) ) ) ), or( not( or( not( T )
% 1.17/1.57    , X ) ), or( Z, or( U, X ) ) ) ) ), W ) ) ) ] )
% 1.17/1.57  , 1, clause( 1, [ 'is_a_theorem'( or( not( or( not( or( not( X ), Y ) ), or( 
% 1.17/1.57    Z, or( T, U ) ) ) ), or( not( or( not( T ), X ) ), or( Z, or( U, X ) ) )
% 1.17/1.57     ) ) ] )
% 1.17/1.57  , 0, substitution( 0, [ :=( X, Y ), :=( Y, Z ), :=( Z, X ), :=( T, T ), 
% 1.17/1.57    :=( U, U ), :=( W, or( not( or( not( X ), or( not( Y ), Z ) ) ), or( not( 
% 1.17/1.57    or( not( T ), Y ) ), or( or( U, Y ), or( not( Y ), Z ) ) ) ) )] ), 
% 1.17/1.57    substitution( 1, [ :=( X, or( not( Y ), Z ) ), :=( Y, or( X, or( T, U ) )
% 1.17/1.57     ), :=( Z, not( or( not( T ), Y ) ) ), :=( T, X ), :=( U, or( U, Y ) )] )
% 1.17/1.57    ).
% 1.17/1.57  
% 1.17/1.57  
% 1.17/1.57  subsumption(
% 1.17/1.57  clause( 4, [ 'is_a_theorem'( or( not( or( not( X ), or( not( Y ), Z ) ) ), 
% 1.17/1.57    or( not( or( not( T ), Y ) ), or( or( U, Y ), or( not( Y ), Z ) ) ) ) ) ]
% 1.17/1.57     )
% 1.17/1.57  , clause( 10790, [ 'is_a_theorem'( or( not( or( not( X ), or( not( Y ), Z )
% 1.17/1.57     ) ), or( not( or( not( T ), Y ) ), or( or( U, Y ), or( not( Y ), Z ) ) )
% 1.17/1.57     ) ) ] )
% 1.17/1.57  , substitution( 0, [ :=( X, X ), :=( Y, Y ), :=( Z, Z ), :=( T, T ), :=( U
% 1.17/1.57    , U )] ), permutation( 0, [ ==>( 0, 0 )] ) ).
% 1.17/1.57  
% 1.17/1.57  
% 1.17/1.57  resolution(
% 1.17/1.57  clause( 10791, [ 'is_a_theorem'( or( not( or( not( X ), or( not( Y ), Z ) )
% 1.17/1.57     ), or( or( T, or( not( Y ), Z ) ), or( not( or( not( Y ), Z ) ), or( U, 
% 1.17/1.57    or( W, Z ) ) ) ) ) ) ] )
% 1.17/1.57  , clause( 3, [ 'is_a_theorem'( W ), ~( 'is_a_theorem'( or( not( or( not( or( 
% 1.17/1.57    not( or( not( X ), Y ) ), or( Z, or( T, U ) ) ) ), or( not( or( not( T )
% 1.17/1.57    , X ) ), or( Z, or( U, X ) ) ) ) ), W ) ) ) ] )
% 1.17/1.57  , 1, clause( 4, [ 'is_a_theorem'( or( not( or( not( X ), or( not( Y ), Z )
% 1.17/1.57     ) ), or( not( or( not( T ), Y ) ), or( or( U, Y ), or( not( Y ), Z ) ) )
% 1.17/1.57     ) ) ] )
% 1.17/1.57  , 0, substitution( 0, [ :=( X, Z ), :=( Y, V0 ), :=( Z, U ), :=( T, Y ), 
% 1.17/1.57    :=( U, W ), :=( W, or( not( or( not( X ), or( not( Y ), Z ) ) ), or( or( 
% 1.17/1.57    T, or( not( Y ), Z ) ), or( not( or( not( Y ), Z ) ), or( U, or( W, Z ) )
% 1.17/1.57     ) ) ) )] ), substitution( 1, [ :=( X, or( not( or( not( Z ), V0 ) ), or( 
% 1.17/1.57    U, or( Y, W ) ) ) ), :=( Y, or( not( Y ), Z ) ), :=( Z, or( U, or( W, Z )
% 1.17/1.57     ) ), :=( T, X ), :=( U, T )] )).
% 1.17/1.57  
% 1.17/1.57  
% 1.17/1.57  subsumption(
% 1.17/1.57  clause( 5, [ 'is_a_theorem'( or( not( or( not( X ), or( not( Y ), Z ) ) ), 
% 1.17/1.57    or( or( T, or( not( Y ), Z ) ), or( not( or( not( Y ), Z ) ), or( U, or( 
% 1.17/1.57    W, Z ) ) ) ) ) ) ] )
% 1.17/1.57  , clause( 10791, [ 'is_a_theorem'( or( not( or( not( X ), or( not( Y ), Z )
% 1.17/1.57     ) ), or( or( T, or( not( Y ), Z ) ), or( not( or( not( Y ), Z ) ), or( U
% 1.17/1.57    , or( W, Z ) ) ) ) ) ) ] )
% 1.17/1.57  , substitution( 0, [ :=( X, X ), :=( Y, Y ), :=( Z, Z ), :=( T, T ), :=( U
% 1.17/1.57    , U ), :=( W, W )] ), permutation( 0, [ ==>( 0, 0 )] ) ).
% 1.17/1.57  
% 1.17/1.57  
% 1.17/1.57  resolution(
% 1.17/1.57  clause( 10793, [ ~( 'is_a_theorem'( or( not( or( not( or( not( X ), or( not( 
% 1.17/1.57    Y ), Z ) ) ), or( not( or( not( T ), Y ) ), or( or( U, Y ), or( not( Y )
% 1.17/1.57    , Z ) ) ) ) ), W ) ) ), 'is_a_theorem'( W ) ] )
% 1.17/1.57  , clause( 0, [ ~( 'is_a_theorem'( or( not( X ), Y ) ) ), 'is_a_theorem'( Y
% 1.17/1.57     ), ~( 'is_a_theorem'( X ) ) ] )
% 1.17/1.57  , 2, clause( 4, [ 'is_a_theorem'( or( not( or( not( X ), or( not( Y ), Z )
% 1.17/1.57     ) ), or( not( or( not( T ), Y ) ), or( or( U, Y ), or( not( Y ), Z ) ) )
% 1.17/1.57     ) ) ] )
% 1.17/1.57  , 0, substitution( 0, [ :=( X, or( not( or( not( X ), or( not( Y ), Z ) ) )
% 1.17/1.57    , or( not( or( not( T ), Y ) ), or( or( U, Y ), or( not( Y ), Z ) ) ) ) )
% 1.17/1.57    , :=( Y, W )] ), substitution( 1, [ :=( X, X ), :=( Y, Y ), :=( Z, Z ), 
% 1.17/1.57    :=( T, T ), :=( U, U )] )).
% 1.17/1.57  
% 1.17/1.57  
% 1.17/1.57  subsumption(
% 1.17/1.57  clause( 6, [ 'is_a_theorem'( W ), ~( 'is_a_theorem'( or( not( or( not( or( 
% 1.17/1.57    not( X ), or( not( Y ), Z ) ) ), or( not( or( not( T ), Y ) ), or( or( U
% 1.17/1.57    , Y ), or( not( Y ), Z ) ) ) ) ), W ) ) ) ] )
% 1.17/1.57  , clause( 10793, [ ~( 'is_a_theorem'( or( not( or( not( or( not( X ), or( 
% 1.17/1.57    not( Y ), Z ) ) ), or( not( or( not( T ), Y ) ), or( or( U, Y ), or( not( 
% 1.17/1.57    Y ), Z ) ) ) ) ), W ) ) ), 'is_a_theorem'( W ) ] )
% 1.17/1.57  , substitution( 0, [ :=( X, X ), :=( Y, Y ), :=( Z, Z ), :=( T, T ), :=( U
% 1.17/1.57    , U ), :=( W, W )] ), permutation( 0, [ ==>( 0, 1 ), ==>( 1, 0 )] ) ).
% 1.17/1.57  
% 1.17/1.57  
% 1.17/1.57  resolution(
% 1.17/1.57  clause( 10794, [ 'is_a_theorem'( or( or( X, or( not( or( not( Y ), Z ) ), 
% 1.17/1.57    or( T, or( U, Z ) ) ) ), or( not( or( not( or( not( Y ), Z ) ), or( T, or( 
% 1.17/1.57    U, Z ) ) ) ), or( W, or( V0, or( T, or( U, Z ) ) ) ) ) ) ) ] )
% 1.17/1.57  , clause( 3, [ 'is_a_theorem'( W ), ~( 'is_a_theorem'( or( not( or( not( or( 
% 1.17/1.57    not( or( not( X ), Y ) ), or( Z, or( T, U ) ) ) ), or( not( or( not( T )
% 1.17/1.57    , X ) ), or( Z, or( U, X ) ) ) ) ), W ) ) ) ] )
% 1.17/1.57  , 1, clause( 5, [ 'is_a_theorem'( or( not( or( not( X ), or( not( Y ), Z )
% 1.17/1.57     ) ), or( or( T, or( not( Y ), Z ) ), or( not( or( not( Y ), Z ) ), or( U
% 1.17/1.57    , or( W, Z ) ) ) ) ) ) ] )
% 1.17/1.57  , 0, substitution( 0, [ :=( X, Z ), :=( Y, V1 ), :=( Z, T ), :=( T, Y ), 
% 1.17/1.57    :=( U, U ), :=( W, or( or( X, or( not( or( not( Y ), Z ) ), or( T, or( U
% 1.17/1.57    , Z ) ) ) ), or( not( or( not( or( not( Y ), Z ) ), or( T, or( U, Z ) ) )
% 1.17/1.57     ), or( W, or( V0, or( T, or( U, Z ) ) ) ) ) ) )] ), substitution( 1, [ 
% 1.17/1.57    :=( X, or( not( or( not( Z ), V1 ) ), or( T, or( Y, U ) ) ) ), :=( Y, or( 
% 1.17/1.57    not( Y ), Z ) ), :=( Z, or( T, or( U, Z ) ) ), :=( T, X ), :=( U, W ), 
% 1.17/1.57    :=( W, V0 )] )).
% 1.17/1.57  
% 1.17/1.57  
% 1.17/1.57  subsumption(
% 1.17/1.57  clause( 7, [ 'is_a_theorem'( or( or( X, or( not( or( not( Y ), Z ) ), or( T
% 1.17/1.57    , or( U, Z ) ) ) ), or( not( or( not( or( not( Y ), Z ) ), or( T, or( U, 
% 1.17/1.57    Z ) ) ) ), or( W, or( V0, or( T, or( U, Z ) ) ) ) ) ) ) ] )
% 1.17/1.57  , clause( 10794, [ 'is_a_theorem'( or( or( X, or( not( or( not( Y ), Z ) )
% 1.17/1.57    , or( T, or( U, Z ) ) ) ), or( not( or( not( or( not( Y ), Z ) ), or( T, 
% 1.17/1.57    or( U, Z ) ) ) ), or( W, or( V0, or( T, or( U, Z ) ) ) ) ) ) ) ] )
% 1.17/1.57  , substitution( 0, [ :=( X, X ), :=( Y, Y ), :=( Z, Z ), :=( T, T ), :=( U
% 1.17/1.57    , U ), :=( W, W ), :=( V0, V0 )] ), permutation( 0, [ ==>( 0, 0 )] )
% 1.17/1.57     ).
% 1.17/1.57  
% 1.17/1.57  
% 1.17/1.57  resolution(
% 1.17/1.57  clause( 10795, [ 'is_a_theorem'( or( not( or( not( or( X, Y ) ), Z ) ), or( 
% 1.17/1.57    not( or( not( T ), Y ) ), or( or( not( Y ), U ), Z ) ) ) ) ] )
% 1.17/1.57  , clause( 6, [ 'is_a_theorem'( W ), ~( 'is_a_theorem'( or( not( or( not( or( 
% 1.17/1.57    not( X ), or( not( Y ), Z ) ) ), or( not( or( not( T ), Y ) ), or( or( U
% 1.17/1.57    , Y ), or( not( Y ), Z ) ) ) ) ), W ) ) ) ] )
% 1.17/1.57  , 1, clause( 1, [ 'is_a_theorem'( or( not( or( not( or( not( X ), Y ) ), or( 
% 1.17/1.57    Z, or( T, U ) ) ) ), or( not( or( not( T ), X ) ), or( Z, or( U, X ) ) )
% 1.17/1.57     ) ) ] )
% 1.17/1.57  , 0, substitution( 0, [ :=( X, Z ), :=( Y, Y ), :=( Z, U ), :=( T, T ), 
% 1.17/1.57    :=( U, X ), :=( W, or( not( or( not( or( X, Y ) ), Z ) ), or( not( or( 
% 1.17/1.57    not( T ), Y ) ), or( or( not( Y ), U ), Z ) ) ) )] ), substitution( 1, [ 
% 1.17/1.57    :=( X, Z ), :=( Y, or( not( Y ), U ) ), :=( Z, not( or( not( T ), Y ) ) )
% 1.17/1.57    , :=( T, or( X, Y ) ), :=( U, or( not( Y ), U ) )] )).
% 1.17/1.57  
% 1.17/1.57  
% 1.17/1.57  subsumption(
% 1.17/1.57  clause( 11, [ 'is_a_theorem'( or( not( or( not( or( X, Y ) ), Z ) ), or( 
% 1.17/1.57    not( or( not( T ), Y ) ), or( or( not( Y ), U ), Z ) ) ) ) ] )
% 1.17/1.57  , clause( 10795, [ 'is_a_theorem'( or( not( or( not( or( X, Y ) ), Z ) ), 
% 1.17/1.57    or( not( or( not( T ), Y ) ), or( or( not( Y ), U ), Z ) ) ) ) ] )
% 1.17/1.57  , substitution( 0, [ :=( X, X ), :=( Y, Y ), :=( Z, Z ), :=( T, T ), :=( U
% 1.17/1.57    , U )] ), permutation( 0, [ ==>( 0, 0 )] ) ).
% 1.17/1.57  
% 1.17/1.57  
% 1.17/1.57  resolution(
% 1.17/1.57  clause( 10797, [ ~( 'is_a_theorem'( or( not( or( not( or( not( or( X, Y ) )
% 1.17/1.57    , Z ) ), or( not( or( not( T ), Y ) ), or( or( not( Y ), U ), Z ) ) ) ), 
% 1.17/1.57    W ) ) ), 'is_a_theorem'( W ) ] )
% 1.17/1.57  , clause( 0, [ ~( 'is_a_theorem'( or( not( X ), Y ) ) ), 'is_a_theorem'( Y
% 1.17/1.57     ), ~( 'is_a_theorem'( X ) ) ] )
% 1.17/1.57  , 2, clause( 11, [ 'is_a_theorem'( or( not( or( not( or( X, Y ) ), Z ) ), 
% 1.17/1.57    or( not( or( not( T ), Y ) ), or( or( not( Y ), U ), Z ) ) ) ) ] )
% 1.17/1.57  , 0, substitution( 0, [ :=( X, or( not( or( not( or( X, Y ) ), Z ) ), or( 
% 1.17/1.57    not( or( not( T ), Y ) ), or( or( not( Y ), U ), Z ) ) ) ), :=( Y, W )] )
% 1.17/1.57    , substitution( 1, [ :=( X, X ), :=( Y, Y ), :=( Z, Z ), :=( T, T ), :=( 
% 1.17/1.57    U, U )] )).
% 1.17/1.57  
% 1.17/1.57  
% 1.17/1.57  subsumption(
% 1.17/1.57  clause( 14, [ 'is_a_theorem'( W ), ~( 'is_a_theorem'( or( not( or( not( or( 
% 1.17/1.57    not( or( X, Y ) ), Z ) ), or( not( or( not( T ), Y ) ), or( or( not( Y )
% 1.17/1.57    , U ), Z ) ) ) ), W ) ) ) ] )
% 1.17/1.57  , clause( 10797, [ ~( 'is_a_theorem'( or( not( or( not( or( not( or( X, Y )
% 1.17/1.57     ), Z ) ), or( not( or( not( T ), Y ) ), or( or( not( Y ), U ), Z ) ) ) )
% 1.17/1.57    , W ) ) ), 'is_a_theorem'( W ) ] )
% 1.17/1.57  , substitution( 0, [ :=( X, X ), :=( Y, Y ), :=( Z, Z ), :=( T, T ), :=( U
% 1.17/1.57    , U ), :=( W, W )] ), permutation( 0, [ ==>( 0, 1 ), ==>( 1, 0 )] ) ).
% 1.17/1.57  
% 1.17/1.57  
% 1.17/1.57  resolution(
% 1.17/1.57  clause( 10798, [ 'is_a_theorem'( or( not( or( not( or( not( X ), Y ) ), or( 
% 1.17/1.57    Z, X ) ) ), or( not( or( not( T ), X ) ), or( U, or( Z, X ) ) ) ) ) ] )
% 1.17/1.57  , clause( 14, [ 'is_a_theorem'( W ), ~( 'is_a_theorem'( or( not( or( not( 
% 1.17/1.57    or( not( or( X, Y ) ), Z ) ), or( not( or( not( T ), Y ) ), or( or( not( 
% 1.17/1.57    Y ), U ), Z ) ) ) ), W ) ) ) ] )
% 1.17/1.57  , 1, clause( 1, [ 'is_a_theorem'( or( not( or( not( or( not( X ), Y ) ), or( 
% 1.17/1.57    Z, or( T, U ) ) ) ), or( not( or( not( T ), X ) ), or( Z, or( U, X ) ) )
% 1.17/1.57     ) ) ] )
% 1.17/1.57  , 0, substitution( 0, [ :=( X, Z ), :=( Y, X ), :=( Z, U ), :=( T, T ), 
% 1.17/1.57    :=( U, Y ), :=( W, or( not( or( not( or( not( X ), Y ) ), or( Z, X ) ) )
% 1.17/1.57    , or( not( or( not( T ), X ) ), or( U, or( Z, X ) ) ) ) )] ), 
% 1.17/1.57    substitution( 1, [ :=( X, or( Z, X ) ), :=( Y, U ), :=( Z, not( or( not( 
% 1.17/1.57    T ), X ) ) ), :=( T, or( not( X ), Y ) ), :=( U, U )] )).
% 1.17/1.57  
% 1.17/1.57  
% 1.17/1.57  subsumption(
% 1.17/1.57  clause( 18, [ 'is_a_theorem'( or( not( or( not( or( not( X ), Y ) ), or( Z
% 1.17/1.57    , X ) ) ), or( not( or( not( T ), X ) ), or( U, or( Z, X ) ) ) ) ) ] )
% 1.17/1.57  , clause( 10798, [ 'is_a_theorem'( or( not( or( not( or( not( X ), Y ) ), 
% 1.17/1.57    or( Z, X ) ) ), or( not( or( not( T ), X ) ), or( U, or( Z, X ) ) ) ) ) ]
% 1.17/1.57     )
% 1.17/1.57  , substitution( 0, [ :=( X, X ), :=( Y, Y ), :=( Z, Z ), :=( T, T ), :=( U
% 1.17/1.57    , U )] ), permutation( 0, [ ==>( 0, 0 )] ) ).
% 1.17/1.57  
% 1.17/1.57  
% 1.17/1.57  resolution(
% 1.17/1.57  clause( 10799, [ 'is_a_theorem'( or( not( or( not( X ), or( or( not( Y ), Z
% 1.17/1.57     ), Y ) ) ), or( T, or( not( or( not( U ), Y ) ), or( or( not( Y ), Z ), 
% 1.17/1.57    Y ) ) ) ) ) ] )
% 1.17/1.57  , clause( 14, [ 'is_a_theorem'( W ), ~( 'is_a_theorem'( or( not( or( not( 
% 1.17/1.57    or( not( or( X, Y ) ), Z ) ), or( not( or( not( T ), Y ) ), or( or( not( 
% 1.17/1.57    Y ), U ), Z ) ) ) ), W ) ) ) ] )
% 1.17/1.57  , 1, clause( 18, [ 'is_a_theorem'( or( not( or( not( or( not( X ), Y ) ), 
% 1.17/1.57    or( Z, X ) ) ), or( not( or( not( T ), X ) ), or( U, or( Z, X ) ) ) ) ) ]
% 1.17/1.57     )
% 1.17/1.57  , 0, substitution( 0, [ :=( X, or( not( Y ), Z ) ), :=( Y, Y ), :=( Z, Y )
% 1.17/1.57    , :=( T, U ), :=( U, Z ), :=( W, or( not( or( not( X ), or( or( not( Y )
% 1.17/1.57    , Z ), Y ) ) ), or( T, or( not( or( not( U ), Y ) ), or( or( not( Y ), Z
% 1.17/1.57     ), Y ) ) ) ) )] ), substitution( 1, [ :=( X, or( or( not( Y ), Z ), Y )
% 1.17/1.57     ), :=( Y, Y ), :=( Z, not( or( not( U ), Y ) ) ), :=( T, X ), :=( U, T )] )
% 1.17/1.57    ).
% 1.17/1.57  
% 1.17/1.57  
% 1.17/1.57  subsumption(
% 1.17/1.57  clause( 19, [ 'is_a_theorem'( or( not( or( not( X ), or( or( not( Y ), Z )
% 1.17/1.57    , Y ) ) ), or( T, or( not( or( not( U ), Y ) ), or( or( not( Y ), Z ), Y
% 1.17/1.57     ) ) ) ) ) ] )
% 1.17/1.57  , clause( 10799, [ 'is_a_theorem'( or( not( or( not( X ), or( or( not( Y )
% 1.17/1.57    , Z ), Y ) ) ), or( T, or( not( or( not( U ), Y ) ), or( or( not( Y ), Z
% 1.17/1.57     ), Y ) ) ) ) ) ] )
% 1.17/1.57  , substitution( 0, [ :=( X, X ), :=( Y, Y ), :=( Z, Z ), :=( T, T ), :=( U
% 1.17/1.57    , U )] ), permutation( 0, [ ==>( 0, 0 )] ) ).
% 1.17/1.57  
% 1.17/1.57  
% 1.17/1.57  resolution(
% 1.17/1.57  clause( 10800, [ 'is_a_theorem'( or( not( or( not( X ), or( not( Y ), or( Z
% 1.17/1.57    , Y ) ) ) ), or( T, or( not( or( not( U ), Y ) ), or( not( Y ), or( Z, Y
% 1.17/1.57     ) ) ) ) ) ) ] )
% 1.17/1.57  , clause( 3, [ 'is_a_theorem'( W ), ~( 'is_a_theorem'( or( not( or( not( or( 
% 1.17/1.57    not( or( not( X ), Y ) ), or( Z, or( T, U ) ) ) ), or( not( or( not( T )
% 1.17/1.57    , X ) ), or( Z, or( U, X ) ) ) ) ), W ) ) ) ] )
% 1.17/1.57  , 1, clause( 18, [ 'is_a_theorem'( or( not( or( not( or( not( X ), Y ) ), 
% 1.17/1.57    or( Z, X ) ) ), or( not( or( not( T ), X ) ), or( U, or( Z, X ) ) ) ) ) ]
% 1.17/1.57     )
% 1.17/1.57  , 0, substitution( 0, [ :=( X, Y ), :=( Y, or( Z, Y ) ), :=( Z, not( Y ) )
% 1.17/1.57    , :=( T, U ), :=( U, Z ), :=( W, or( not( or( not( X ), or( not( Y ), or( 
% 1.17/1.57    Z, Y ) ) ) ), or( T, or( not( or( not( U ), Y ) ), or( not( Y ), or( Z, Y
% 1.17/1.57     ) ) ) ) ) )] ), substitution( 1, [ :=( X, or( not( Y ), or( Z, Y ) ) ), 
% 1.17/1.57    :=( Y, or( not( Y ), or( U, Z ) ) ), :=( Z, not( or( not( U ), Y ) ) ), 
% 1.17/1.57    :=( T, X ), :=( U, T )] )).
% 1.17/1.57  
% 1.17/1.57  
% 1.17/1.57  subsumption(
% 1.17/1.57  clause( 21, [ 'is_a_theorem'( or( not( or( not( X ), or( not( Y ), or( Z, Y
% 1.17/1.57     ) ) ) ), or( T, or( not( or( not( U ), Y ) ), or( not( Y ), or( Z, Y ) )
% 1.17/1.57     ) ) ) ) ] )
% 1.17/1.57  , clause( 10800, [ 'is_a_theorem'( or( not( or( not( X ), or( not( Y ), or( 
% 1.17/1.57    Z, Y ) ) ) ), or( T, or( not( or( not( U ), Y ) ), or( not( Y ), or( Z, Y
% 1.17/1.57     ) ) ) ) ) ) ] )
% 1.17/1.57  , substitution( 0, [ :=( X, X ), :=( Y, Y ), :=( Z, Z ), :=( T, T ), :=( U
% 1.17/1.57    , U )] ), permutation( 0, [ ==>( 0, 0 )] ) ).
% 1.17/1.57  
% 1.17/1.57  
% 1.17/1.57  resolution(
% 1.17/1.57  clause( 10801, [ ~( 'is_a_theorem'( or( not( or( or( X, or( not( or( not( Y
% 1.17/1.57     ), Z ) ), or( T, or( U, Z ) ) ) ), or( not( or( not( or( not( Y ), Z ) )
% 1.17/1.57    , or( T, or( U, Z ) ) ) ), or( W, or( V0, or( T, or( U, Z ) ) ) ) ) ) ), 
% 1.17/1.57    V1 ) ) ), 'is_a_theorem'( V1 ) ] )
% 1.17/1.57  , clause( 0, [ ~( 'is_a_theorem'( or( not( X ), Y ) ) ), 'is_a_theorem'( Y
% 1.17/1.57     ), ~( 'is_a_theorem'( X ) ) ] )
% 1.17/1.57  , 2, clause( 7, [ 'is_a_theorem'( or( or( X, or( not( or( not( Y ), Z ) ), 
% 1.17/1.57    or( T, or( U, Z ) ) ) ), or( not( or( not( or( not( Y ), Z ) ), or( T, or( 
% 1.17/1.57    U, Z ) ) ) ), or( W, or( V0, or( T, or( U, Z ) ) ) ) ) ) ) ] )
% 1.17/1.57  , 0, substitution( 0, [ :=( X, or( or( X, or( not( or( not( Y ), Z ) ), or( 
% 1.17/1.57    T, or( U, Z ) ) ) ), or( not( or( not( or( not( Y ), Z ) ), or( T, or( U
% 1.17/1.57    , Z ) ) ) ), or( W, or( V0, or( T, or( U, Z ) ) ) ) ) ) ), :=( Y, V1 )] )
% 1.17/1.57    , substitution( 1, [ :=( X, X ), :=( Y, Y ), :=( Z, Z ), :=( T, T ), :=( 
% 1.17/1.57    U, U ), :=( W, W ), :=( V0, V0 )] )).
% 1.17/1.57  
% 1.17/1.57  
% 1.17/1.57  subsumption(
% 1.17/1.57  clause( 23, [ 'is_a_theorem'( V1 ), ~( 'is_a_theorem'( or( not( or( or( X, 
% 1.17/1.57    or( not( or( not( Y ), Z ) ), or( T, or( U, Z ) ) ) ), or( not( or( not( 
% 1.17/1.57    or( not( Y ), Z ) ), or( T, or( U, Z ) ) ) ), or( W, or( V0, or( T, or( U
% 1.17/1.57    , Z ) ) ) ) ) ) ), V1 ) ) ) ] )
% 1.17/1.57  , clause( 10801, [ ~( 'is_a_theorem'( or( not( or( or( X, or( not( or( not( 
% 1.17/1.57    Y ), Z ) ), or( T, or( U, Z ) ) ) ), or( not( or( not( or( not( Y ), Z )
% 1.17/1.57     ), or( T, or( U, Z ) ) ) ), or( W, or( V0, or( T, or( U, Z ) ) ) ) ) ) )
% 1.17/1.57    , V1 ) ) ), 'is_a_theorem'( V1 ) ] )
% 1.17/1.57  , substitution( 0, [ :=( X, X ), :=( Y, Y ), :=( Z, Z ), :=( T, T ), :=( U
% 1.17/1.57    , U ), :=( W, W ), :=( V0, V0 ), :=( V1, V1 )] ), permutation( 0, [ ==>( 
% 1.17/1.57    0, 1 ), ==>( 1, 0 )] ) ).
% 1.17/1.57  
% 1.17/1.57  
% 1.17/1.57  resolution(
% 1.17/1.57  clause( 10803, [ ~( 'is_a_theorem'( or( not( or( not( or( not( X ), or( or( 
% 1.17/1.57    not( Y ), Z ), Y ) ) ), or( T, or( not( or( not( U ), Y ) ), or( or( not( 
% 1.17/1.57    Y ), Z ), Y ) ) ) ) ), W ) ) ), 'is_a_theorem'( W ) ] )
% 1.17/1.57  , clause( 0, [ ~( 'is_a_theorem'( or( not( X ), Y ) ) ), 'is_a_theorem'( Y
% 1.17/1.57     ), ~( 'is_a_theorem'( X ) ) ] )
% 1.17/1.57  , 2, clause( 19, [ 'is_a_theorem'( or( not( or( not( X ), or( or( not( Y )
% 1.17/1.57    , Z ), Y ) ) ), or( T, or( not( or( not( U ), Y ) ), or( or( not( Y ), Z
% 1.17/1.57     ), Y ) ) ) ) ) ] )
% 1.17/1.57  , 0, substitution( 0, [ :=( X, or( not( or( not( X ), or( or( not( Y ), Z )
% 1.17/1.57    , Y ) ) ), or( T, or( not( or( not( U ), Y ) ), or( or( not( Y ), Z ), Y
% 1.17/1.57     ) ) ) ) ), :=( Y, W )] ), substitution( 1, [ :=( X, X ), :=( Y, Y ), 
% 1.17/1.57    :=( Z, Z ), :=( T, T ), :=( U, U )] )).
% 1.17/1.57  
% 1.17/1.57  
% 1.17/1.57  subsumption(
% 1.17/1.57  clause( 28, [ 'is_a_theorem'( W ), ~( 'is_a_theorem'( or( not( or( not( or( 
% 1.17/1.57    not( X ), or( or( not( Y ), Z ), Y ) ) ), or( T, or( not( or( not( U ), Y
% 1.17/1.57     ) ), or( or( not( Y ), Z ), Y ) ) ) ) ), W ) ) ) ] )
% 1.17/1.57  , clause( 10803, [ ~( 'is_a_theorem'( or( not( or( not( or( not( X ), or( 
% 1.17/1.57    or( not( Y ), Z ), Y ) ) ), or( T, or( not( or( not( U ), Y ) ), or( or( 
% 1.17/1.57    not( Y ), Z ), Y ) ) ) ) ), W ) ) ), 'is_a_theorem'( W ) ] )
% 1.17/1.57  , substitution( 0, [ :=( X, X ), :=( Y, Y ), :=( Z, Z ), :=( T, T ), :=( U
% 1.17/1.57    , U ), :=( W, W )] ), permutation( 0, [ ==>( 0, 1 ), ==>( 1, 0 )] ) ).
% 1.17/1.57  
% 1.17/1.57  
% 1.17/1.57  resolution(
% 1.17/1.57  clause( 10804, [ 'is_a_theorem'( or( X, or( not( or( not( Y ), or( not( Z )
% 1.17/1.57    , T ) ) ), or( not( or( not( Z ), T ) ), or( U, or( not( Z ), T ) ) ) ) )
% 1.17/1.57     ) ] )
% 1.17/1.57  , clause( 3, [ 'is_a_theorem'( W ), ~( 'is_a_theorem'( or( not( or( not( or( 
% 1.17/1.57    not( or( not( X ), Y ) ), or( Z, or( T, U ) ) ) ), or( not( or( not( T )
% 1.17/1.57    , X ) ), or( Z, or( U, X ) ) ) ) ), W ) ) ) ] )
% 1.17/1.57  , 1, clause( 21, [ 'is_a_theorem'( or( not( or( not( X ), or( not( Y ), or( 
% 1.17/1.57    Z, Y ) ) ) ), or( T, or( not( or( not( U ), Y ) ), or( not( Y ), or( Z, Y
% 1.17/1.57     ) ) ) ) ) ) ] )
% 1.17/1.57  , 0, substitution( 0, [ :=( X, T ), :=( Y, W ), :=( Z, U ), :=( T, Z ), 
% 1.17/1.57    :=( U, not( Z ) ), :=( W, or( X, or( not( or( not( Y ), or( not( Z ), T )
% 1.17/1.57     ) ), or( not( or( not( Z ), T ) ), or( U, or( not( Z ), T ) ) ) ) ) )] )
% 1.17/1.57    , substitution( 1, [ :=( X, or( not( or( not( T ), W ) ), or( U, or( Z, 
% 1.17/1.57    not( Z ) ) ) ) ), :=( Y, or( not( Z ), T ) ), :=( Z, U ), :=( T, X ), 
% 1.17/1.57    :=( U, Y )] )).
% 1.17/1.57  
% 1.17/1.57  
% 1.17/1.57  subsumption(
% 1.17/1.57  clause( 31, [ 'is_a_theorem'( or( X, or( not( or( not( Y ), or( not( Z ), T
% 1.17/1.57     ) ) ), or( not( or( not( Z ), T ) ), or( U, or( not( Z ), T ) ) ) ) ) )
% 1.17/1.57     ] )
% 1.17/1.57  , clause( 10804, [ 'is_a_theorem'( or( X, or( not( or( not( Y ), or( not( Z
% 1.17/1.57     ), T ) ) ), or( not( or( not( Z ), T ) ), or( U, or( not( Z ), T ) ) ) )
% 1.17/1.57     ) ) ] )
% 1.17/1.57  , substitution( 0, [ :=( X, X ), :=( Y, Y ), :=( Z, Z ), :=( T, T ), :=( U
% 1.17/1.57    , U )] ), permutation( 0, [ ==>( 0, 0 )] ) ).
% 1.17/1.57  
% 1.17/1.57  
% 1.17/1.57  resolution(
% 1.17/1.57  clause( 10805, [ 'is_a_theorem'( or( not( or( not( X ), or( not( Y ), Z ) )
% 1.17/1.57     ), or( not( or( not( Y ), Z ) ), or( T, or( not( Y ), Z ) ) ) ) ) ] )
% 1.17/1.57  , clause( 14, [ 'is_a_theorem'( W ), ~( 'is_a_theorem'( or( not( or( not( 
% 1.17/1.57    or( not( or( X, Y ) ), Z ) ), or( not( or( not( T ), Y ) ), or( or( not( 
% 1.17/1.57    Y ), U ), Z ) ) ) ), W ) ) ) ] )
% 1.17/1.57  , 1, clause( 31, [ 'is_a_theorem'( or( X, or( not( or( not( Y ), or( not( Z
% 1.17/1.57     ), T ) ) ), or( not( or( not( Z ), T ) ), or( U, or( not( Z ), T ) ) ) )
% 1.17/1.57     ) ) ] )
% 1.17/1.57  , 0, substitution( 0, [ :=( X, U ), :=( Y, W ), :=( Z, V0 ), :=( T, V1 ), 
% 1.17/1.57    :=( U, V2 ), :=( W, or( not( or( not( X ), or( not( Y ), Z ) ) ), or( not( 
% 1.17/1.57    or( not( Y ), Z ) ), or( T, or( not( Y ), Z ) ) ) ) )] ), substitution( 1
% 1.17/1.57    , [ :=( X, not( or( not( or( not( or( U, W ) ), V0 ) ), or( not( or( not( 
% 1.17/1.57    V1 ), W ) ), or( or( not( W ), V2 ), V0 ) ) ) ) ), :=( Y, X ), :=( Z, Y )
% 1.17/1.57    , :=( T, Z ), :=( U, T )] )).
% 1.17/1.57  
% 1.17/1.57  
% 1.17/1.57  subsumption(
% 1.17/1.57  clause( 33, [ 'is_a_theorem'( or( not( or( not( X ), or( not( Y ), Z ) ) )
% 1.17/1.57    , or( not( or( not( Y ), Z ) ), or( T, or( not( Y ), Z ) ) ) ) ) ] )
% 1.17/1.57  , clause( 10805, [ 'is_a_theorem'( or( not( or( not( X ), or( not( Y ), Z )
% 1.17/1.57     ) ), or( not( or( not( Y ), Z ) ), or( T, or( not( Y ), Z ) ) ) ) ) ] )
% 1.17/1.57  , substitution( 0, [ :=( X, X ), :=( Y, Y ), :=( Z, Z ), :=( T, T )] ), 
% 1.17/1.57    permutation( 0, [ ==>( 0, 0 )] ) ).
% 1.17/1.57  
% 1.17/1.57  
% 1.17/1.57  resolution(
% 1.17/1.57  clause( 10807, [ ~( 'is_a_theorem'( or( not( or( not( or( not( X ), or( not( 
% 1.17/1.57    Y ), Z ) ) ), or( not( or( not( Y ), Z ) ), or( T, or( not( Y ), Z ) ) )
% 1.17/1.57     ) ), U ) ) ), 'is_a_theorem'( U ) ] )
% 1.17/1.57  , clause( 0, [ ~( 'is_a_theorem'( or( not( X ), Y ) ) ), 'is_a_theorem'( Y
% 1.17/1.57     ), ~( 'is_a_theorem'( X ) ) ] )
% 1.17/1.57  , 2, clause( 33, [ 'is_a_theorem'( or( not( or( not( X ), or( not( Y ), Z )
% 1.17/1.57     ) ), or( not( or( not( Y ), Z ) ), or( T, or( not( Y ), Z ) ) ) ) ) ] )
% 1.17/1.57  , 0, substitution( 0, [ :=( X, or( not( or( not( X ), or( not( Y ), Z ) ) )
% 1.17/1.57    , or( not( or( not( Y ), Z ) ), or( T, or( not( Y ), Z ) ) ) ) ), :=( Y, 
% 1.17/1.57    U )] ), substitution( 1, [ :=( X, X ), :=( Y, Y ), :=( Z, Z ), :=( T, T )] )
% 1.17/1.57    ).
% 1.17/1.57  
% 1.17/1.57  
% 1.17/1.57  subsumption(
% 1.17/1.57  clause( 42, [ 'is_a_theorem'( U ), ~( 'is_a_theorem'( or( not( or( not( or( 
% 1.17/1.57    not( X ), or( not( Y ), Z ) ) ), or( not( or( not( Y ), Z ) ), or( T, or( 
% 1.17/1.57    not( Y ), Z ) ) ) ) ), U ) ) ) ] )
% 1.17/1.57  , clause( 10807, [ ~( 'is_a_theorem'( or( not( or( not( or( not( X ), or( 
% 1.17/1.57    not( Y ), Z ) ) ), or( not( or( not( Y ), Z ) ), or( T, or( not( Y ), Z )
% 1.17/1.57     ) ) ) ), U ) ) ), 'is_a_theorem'( U ) ] )
% 1.17/1.57  , substitution( 0, [ :=( X, X ), :=( Y, Y ), :=( Z, Z ), :=( T, T ), :=( U
% 1.17/1.57    , U )] ), permutation( 0, [ ==>( 0, 1 ), ==>( 1, 0 )] ) ).
% 1.17/1.57  
% 1.17/1.57  
% 1.17/1.57  resolution(
% 1.17/1.57  clause( 10808, [ 'is_a_theorem'( or( not( or( not( X ), or( Y, or( not( Z )
% 1.17/1.57    , T ) ) ) ), or( U, or( not( or( not( Z ), T ) ), or( Y, or( not( Z ), T
% 1.17/1.57     ) ) ) ) ) ) ] )
% 1.17/1.57  , clause( 42, [ 'is_a_theorem'( U ), ~( 'is_a_theorem'( or( not( or( not( 
% 1.17/1.57    or( not( X ), or( not( Y ), Z ) ) ), or( not( or( not( Y ), Z ) ), or( T
% 1.17/1.57    , or( not( Y ), Z ) ) ) ) ), U ) ) ) ] )
% 1.17/1.57  , 1, clause( 18, [ 'is_a_theorem'( or( not( or( not( or( not( X ), Y ) ), 
% 1.17/1.57    or( Z, X ) ) ), or( not( or( not( T ), X ) ), or( U, or( Z, X ) ) ) ) ) ]
% 1.17/1.57     )
% 1.17/1.57  , 0, substitution( 0, [ :=( X, or( Y, or( not( Z ), T ) ) ), :=( Y, Z ), 
% 1.17/1.57    :=( Z, T ), :=( T, Y ), :=( U, or( not( or( not( X ), or( Y, or( not( Z )
% 1.17/1.57    , T ) ) ) ), or( U, or( not( or( not( Z ), T ) ), or( Y, or( not( Z ), T
% 1.17/1.57     ) ) ) ) ) )] ), substitution( 1, [ :=( X, or( Y, or( not( Z ), T ) ) ), 
% 1.17/1.57    :=( Y, or( not( Z ), T ) ), :=( Z, not( or( not( Z ), T ) ) ), :=( T, X )
% 1.17/1.57    , :=( U, U )] )).
% 1.17/1.57  
% 1.17/1.57  
% 1.17/1.57  subsumption(
% 1.17/1.57  clause( 51, [ 'is_a_theorem'( or( not( or( not( X ), or( Y, or( not( Z ), T
% 1.17/1.57     ) ) ) ), or( U, or( not( or( not( Z ), T ) ), or( Y, or( not( Z ), T ) )
% 1.17/1.57     ) ) ) ) ] )
% 1.17/1.57  , clause( 10808, [ 'is_a_theorem'( or( not( or( not( X ), or( Y, or( not( Z
% 1.17/1.57     ), T ) ) ) ), or( U, or( not( or( not( Z ), T ) ), or( Y, or( not( Z ), 
% 1.17/1.57    T ) ) ) ) ) ) ] )
% 1.17/1.57  , substitution( 0, [ :=( X, X ), :=( Y, Y ), :=( Z, Z ), :=( T, T ), :=( U
% 1.17/1.57    , U )] ), permutation( 0, [ ==>( 0, 0 )] ) ).
% 1.17/1.57  
% 1.17/1.57  
% 1.17/1.57  resolution(
% 1.17/1.57  clause( 10809, [ 'is_a_theorem'( or( not( or( not( X ), Y ) ), or( not( or( 
% 1.17/1.57    not( Z ), T ) ), or( or( not( Z ), T ), Y ) ) ) ) ] )
% 1.17/1.57  , clause( 42, [ 'is_a_theorem'( U ), ~( 'is_a_theorem'( or( not( or( not( 
% 1.17/1.57    or( not( X ), or( not( Y ), Z ) ) ), or( not( or( not( Y ), Z ) ), or( T
% 1.17/1.57    , or( not( Y ), Z ) ) ) ) ), U ) ) ) ] )
% 1.17/1.57  , 1, clause( 1, [ 'is_a_theorem'( or( not( or( not( or( not( X ), Y ) ), or( 
% 1.17/1.57    Z, or( T, U ) ) ) ), or( not( or( not( T ), X ) ), or( Z, or( U, X ) ) )
% 1.17/1.57     ) ) ] )
% 1.17/1.57  , 0, substitution( 0, [ :=( X, Y ), :=( Y, Z ), :=( Z, T ), :=( T, X ), 
% 1.17/1.57    :=( U, or( not( or( not( X ), Y ) ), or( not( or( not( Z ), T ) ), or( or( 
% 1.17/1.57    not( Z ), T ), Y ) ) ) )] ), substitution( 1, [ :=( X, Y ), :=( Y, or( 
% 1.17/1.57    not( Z ), T ) ), :=( Z, not( or( not( Z ), T ) ) ), :=( T, X ), :=( U, or( 
% 1.17/1.57    not( Z ), T ) )] )).
% 1.17/1.57  
% 1.17/1.57  
% 1.17/1.57  subsumption(
% 1.17/1.57  clause( 53, [ 'is_a_theorem'( or( not( or( not( X ), Y ) ), or( not( or( 
% 1.17/1.57    not( Z ), T ) ), or( or( not( Z ), T ), Y ) ) ) ) ] )
% 1.17/1.57  , clause( 10809, [ 'is_a_theorem'( or( not( or( not( X ), Y ) ), or( not( 
% 1.17/1.57    or( not( Z ), T ) ), or( or( not( Z ), T ), Y ) ) ) ) ] )
% 1.17/1.57  , substitution( 0, [ :=( X, X ), :=( Y, Y ), :=( Z, Z ), :=( T, T )] ), 
% 1.17/1.57    permutation( 0, [ ==>( 0, 0 )] ) ).
% 1.17/1.57  
% 1.17/1.57  
% 1.17/1.57  resolution(
% 1.17/1.57  clause( 10811, [ ~( 'is_a_theorem'( or( not( or( not( or( not( X ), Y ) ), 
% 1.17/1.57    or( not( or( not( Z ), T ) ), or( or( not( Z ), T ), Y ) ) ) ), U ) ) ), 
% 1.17/1.57    'is_a_theorem'( U ) ] )
% 1.17/1.57  , clause( 0, [ ~( 'is_a_theorem'( or( not( X ), Y ) ) ), 'is_a_theorem'( Y
% 1.17/1.57     ), ~( 'is_a_theorem'( X ) ) ] )
% 1.17/1.57  , 2, clause( 53, [ 'is_a_theorem'( or( not( or( not( X ), Y ) ), or( not( 
% 1.17/1.57    or( not( Z ), T ) ), or( or( not( Z ), T ), Y ) ) ) ) ] )
% 1.17/1.57  , 0, substitution( 0, [ :=( X, or( not( or( not( X ), Y ) ), or( not( or( 
% 1.17/1.57    not( Z ), T ) ), or( or( not( Z ), T ), Y ) ) ) ), :=( Y, U )] ), 
% 1.17/1.57    substitution( 1, [ :=( X, X ), :=( Y, Y ), :=( Z, Z ), :=( T, T )] )).
% 1.17/1.57  
% 1.17/1.57  
% 1.17/1.57  subsumption(
% 1.17/1.57  clause( 64, [ 'is_a_theorem'( U ), ~( 'is_a_theorem'( or( not( or( not( or( 
% 1.17/1.57    not( X ), Y ) ), or( not( or( not( Z ), T ) ), or( or( not( Z ), T ), Y )
% 1.17/1.57     ) ) ), U ) ) ) ] )
% 1.17/1.57  , clause( 10811, [ ~( 'is_a_theorem'( or( not( or( not( or( not( X ), Y ) )
% 1.17/1.57    , or( not( or( not( Z ), T ) ), or( or( not( Z ), T ), Y ) ) ) ), U ) ) )
% 1.17/1.57    , 'is_a_theorem'( U ) ] )
% 1.17/1.57  , substitution( 0, [ :=( X, X ), :=( Y, Y ), :=( Z, Z ), :=( T, T ), :=( U
% 1.17/1.57    , U )] ), permutation( 0, [ ==>( 0, 1 ), ==>( 1, 0 )] ) ).
% 1.17/1.57  
% 1.17/1.57  
% 1.17/1.57  resolution(
% 1.17/1.57  clause( 10812, [ 'is_a_theorem'( or( not( or( not( or( not( X ), Y ) ), Z )
% 1.17/1.57     ), or( not( or( not( X ), Y ) ), or( T, Z ) ) ) ) ] )
% 1.17/1.57  , clause( 64, [ 'is_a_theorem'( U ), ~( 'is_a_theorem'( or( not( or( not( 
% 1.17/1.57    or( not( X ), Y ) ), or( not( or( not( Z ), T ) ), or( or( not( Z ), T )
% 1.17/1.57    , Y ) ) ) ), U ) ) ) ] )
% 1.17/1.57  , 1, clause( 1, [ 'is_a_theorem'( or( not( or( not( or( not( X ), Y ) ), or( 
% 1.17/1.57    Z, or( T, U ) ) ) ), or( not( or( not( T ), X ) ), or( Z, or( U, X ) ) )
% 1.17/1.57     ) ) ] )
% 1.17/1.57  , 0, substitution( 0, [ :=( X, Z ), :=( Y, T ), :=( Z, X ), :=( T, Y ), 
% 1.17/1.57    :=( U, or( not( or( not( or( not( X ), Y ) ), Z ) ), or( not( or( not( X
% 1.17/1.57     ), Y ) ), or( T, Z ) ) ) )] ), substitution( 1, [ :=( X, Z ), :=( Y, T )
% 1.17/1.57    , :=( Z, not( or( not( X ), Y ) ) ), :=( T, or( not( X ), Y ) ), :=( U, T
% 1.17/1.57     )] )).
% 1.17/1.57  
% 1.17/1.57  
% 1.17/1.57  subsumption(
% 1.17/1.57  clause( 94, [ 'is_a_theorem'( or( not( or( not( or( not( X ), Y ) ), Z ) )
% 1.17/1.57    , or( not( or( not( X ), Y ) ), or( T, Z ) ) ) ) ] )
% 1.17/1.57  , clause( 10812, [ 'is_a_theorem'( or( not( or( not( or( not( X ), Y ) ), Z
% 1.17/1.57     ) ), or( not( or( not( X ), Y ) ), or( T, Z ) ) ) ) ] )
% 1.17/1.57  , substitution( 0, [ :=( X, X ), :=( Y, Y ), :=( Z, Z ), :=( T, T )] ), 
% 1.17/1.57    permutation( 0, [ ==>( 0, 0 )] ) ).
% 1.17/1.57  
% 1.17/1.57  
% 1.17/1.57  resolution(
% 1.17/1.57  clause( 10814, [ ~( 'is_a_theorem'( or( not( or( not( or( not( or( not( X )
% 1.17/1.57    , Y ) ), Z ) ), or( not( or( not( X ), Y ) ), or( T, Z ) ) ) ), U ) ) ), 
% 1.17/1.57    'is_a_theorem'( U ) ] )
% 1.17/1.57  , clause( 0, [ ~( 'is_a_theorem'( or( not( X ), Y ) ) ), 'is_a_theorem'( Y
% 1.17/1.57     ), ~( 'is_a_theorem'( X ) ) ] )
% 1.17/1.57  , 2, clause( 94, [ 'is_a_theorem'( or( not( or( not( or( not( X ), Y ) ), Z
% 1.17/1.57     ) ), or( not( or( not( X ), Y ) ), or( T, Z ) ) ) ) ] )
% 1.17/1.57  , 0, substitution( 0, [ :=( X, or( not( or( not( or( not( X ), Y ) ), Z ) )
% 1.17/1.57    , or( not( or( not( X ), Y ) ), or( T, Z ) ) ) ), :=( Y, U )] ), 
% 1.17/1.57    substitution( 1, [ :=( X, X ), :=( Y, Y ), :=( Z, Z ), :=( T, T )] )).
% 1.17/1.57  
% 1.17/1.57  
% 1.17/1.57  subsumption(
% 1.17/1.57  clause( 101, [ 'is_a_theorem'( U ), ~( 'is_a_theorem'( or( not( or( not( or( 
% 1.17/1.57    not( or( not( X ), Y ) ), Z ) ), or( not( or( not( X ), Y ) ), or( T, Z )
% 1.17/1.57     ) ) ), U ) ) ) ] )
% 1.17/1.57  , clause( 10814, [ ~( 'is_a_theorem'( or( not( or( not( or( not( or( not( X
% 1.17/1.57     ), Y ) ), Z ) ), or( not( or( not( X ), Y ) ), or( T, Z ) ) ) ), U ) ) )
% 1.17/1.57    , 'is_a_theorem'( U ) ] )
% 1.17/1.57  , substitution( 0, [ :=( X, X ), :=( Y, Y ), :=( Z, Z ), :=( T, T ), :=( U
% 1.17/1.57    , U )] ), permutation( 0, [ ==>( 0, 1 ), ==>( 1, 0 )] ) ).
% 1.17/1.57  
% 1.17/1.57  
% 1.17/1.57  resolution(
% 1.17/1.57  clause( 10815, [ 'is_a_theorem'( or( X, or( not( or( not( Y ), Z ) ), or( 
% 1.17/1.57    not( or( not( T ), U ) ), or( not( Y ), Z ) ) ) ) ) ] )
% 1.17/1.57  , clause( 101, [ 'is_a_theorem'( U ), ~( 'is_a_theorem'( or( not( or( not( 
% 1.17/1.57    or( not( or( not( X ), Y ) ), Z ) ), or( not( or( not( X ), Y ) ), or( T
% 1.17/1.57    , Z ) ) ) ), U ) ) ) ] )
% 1.17/1.57  , 1, clause( 51, [ 'is_a_theorem'( or( not( or( not( X ), or( Y, or( not( Z
% 1.17/1.57     ), T ) ) ) ), or( U, or( not( or( not( Z ), T ) ), or( Y, or( not( Z ), 
% 1.17/1.57    T ) ) ) ) ) ) ] )
% 1.17/1.57  , 0, substitution( 0, [ :=( X, T ), :=( Y, U ), :=( Z, Z ), :=( T, not( Y )
% 1.17/1.57     ), :=( U, or( X, or( not( or( not( Y ), Z ) ), or( not( or( not( T ), U
% 1.17/1.57     ) ), or( not( Y ), Z ) ) ) ) )] ), substitution( 1, [ :=( X, or( not( or( 
% 1.17/1.57    not( T ), U ) ), Z ) ), :=( Y, not( or( not( T ), U ) ) ), :=( Z, Y ), 
% 1.17/1.57    :=( T, Z ), :=( U, X )] )).
% 1.17/1.57  
% 1.17/1.57  
% 1.17/1.57  subsumption(
% 1.17/1.57  clause( 211, [ 'is_a_theorem'( or( X, or( not( or( not( Y ), Z ) ), or( not( 
% 1.17/1.57    or( not( T ), U ) ), or( not( Y ), Z ) ) ) ) ) ] )
% 1.17/1.57  , clause( 10815, [ 'is_a_theorem'( or( X, or( not( or( not( Y ), Z ) ), or( 
% 1.17/1.57    not( or( not( T ), U ) ), or( not( Y ), Z ) ) ) ) ) ] )
% 1.17/1.57  , substitution( 0, [ :=( X, X ), :=( Y, Y ), :=( Z, Z ), :=( T, T ), :=( U
% 1.17/1.57    , U )] ), permutation( 0, [ ==>( 0, 0 )] ) ).
% 1.17/1.57  
% 1.17/1.57  
% 1.17/1.57  resolution(
% 1.17/1.57  clause( 10816, [ 'is_a_theorem'( or( not( or( not( X ), Y ) ), or( not( or( 
% 1.17/1.57    not( Z ), T ) ), or( not( X ), Y ) ) ) ) ] )
% 1.17/1.57  , clause( 23, [ 'is_a_theorem'( V1 ), ~( 'is_a_theorem'( or( not( or( or( X
% 1.17/1.57    , or( not( or( not( Y ), Z ) ), or( T, or( U, Z ) ) ) ), or( not( or( not( 
% 1.17/1.57    or( not( Y ), Z ) ), or( T, or( U, Z ) ) ) ), or( W, or( V0, or( T, or( U
% 1.17/1.57    , Z ) ) ) ) ) ) ), V1 ) ) ) ] )
% 1.17/1.57  , 1, clause( 211, [ 'is_a_theorem'( or( X, or( not( or( not( Y ), Z ) ), or( 
% 1.17/1.57    not( or( not( T ), U ) ), or( not( Y ), Z ) ) ) ) ) ] )
% 1.17/1.57  , 0, substitution( 0, [ :=( X, U ), :=( Y, W ), :=( Z, V0 ), :=( T, V1 ), 
% 1.17/1.57    :=( U, V2 ), :=( W, V3 ), :=( V0, V4 ), :=( V1, or( not( or( not( X ), Y
% 1.17/1.57     ) ), or( not( or( not( Z ), T ) ), or( not( X ), Y ) ) ) )] ), 
% 1.17/1.57    substitution( 1, [ :=( X, not( or( or( U, or( not( or( not( W ), V0 ) ), 
% 1.17/1.57    or( V1, or( V2, V0 ) ) ) ), or( not( or( not( or( not( W ), V0 ) ), or( 
% 1.17/1.57    V1, or( V2, V0 ) ) ) ), or( V3, or( V4, or( V1, or( V2, V0 ) ) ) ) ) ) )
% 1.17/1.57     ), :=( Y, X ), :=( Z, Y ), :=( T, Z ), :=( U, T )] )).
% 1.17/1.57  
% 1.17/1.57  
% 1.17/1.57  subsumption(
% 1.17/1.57  clause( 213, [ 'is_a_theorem'( or( not( or( not( X ), Y ) ), or( not( or( 
% 1.17/1.57    not( Z ), T ) ), or( not( X ), Y ) ) ) ) ] )
% 1.17/1.57  , clause( 10816, [ 'is_a_theorem'( or( not( or( not( X ), Y ) ), or( not( 
% 1.17/1.57    or( not( Z ), T ) ), or( not( X ), Y ) ) ) ) ] )
% 1.17/1.57  , substitution( 0, [ :=( X, X ), :=( Y, Y ), :=( Z, Z ), :=( T, T )] ), 
% 1.17/1.57    permutation( 0, [ ==>( 0, 0 )] ) ).
% 1.17/1.57  
% 1.17/1.57  
% 1.17/1.57  resolution(
% 1.17/1.57  clause( 10818, [ ~( 'is_a_theorem'( or( not( or( not( or( not( X ), Y ) ), 
% 1.17/1.57    or( not( or( not( Z ), T ) ), or( not( X ), Y ) ) ) ), U ) ) ), 
% 1.17/1.57    'is_a_theorem'( U ) ] )
% 1.17/1.57  , clause( 0, [ ~( 'is_a_theorem'( or( not( X ), Y ) ) ), 'is_a_theorem'( Y
% 1.17/1.57     ), ~( 'is_a_theorem'( X ) ) ] )
% 1.17/1.57  , 2, clause( 213, [ 'is_a_theorem'( or( not( or( not( X ), Y ) ), or( not( 
% 1.17/1.57    or( not( Z ), T ) ), or( not( X ), Y ) ) ) ) ] )
% 1.17/1.57  , 0, substitution( 0, [ :=( X, or( not( or( not( X ), Y ) ), or( not( or( 
% 1.17/1.57    not( Z ), T ) ), or( not( X ), Y ) ) ) ), :=( Y, U )] ), substitution( 1
% 1.17/1.57    , [ :=( X, X ), :=( Y, Y ), :=( Z, Z ), :=( T, T )] )).
% 1.17/1.57  
% 1.17/1.57  
% 1.17/1.57  subsumption(
% 1.17/1.57  clause( 215, [ 'is_a_theorem'( U ), ~( 'is_a_theorem'( or( not( or( not( or( 
% 1.17/1.57    not( X ), Y ) ), or( not( or( not( Z ), T ) ), or( not( X ), Y ) ) ) ), U
% 1.17/1.57     ) ) ) ] )
% 1.17/1.57  , clause( 10818, [ ~( 'is_a_theorem'( or( not( or( not( or( not( X ), Y ) )
% 1.17/1.57    , or( not( or( not( Z ), T ) ), or( not( X ), Y ) ) ) ), U ) ) ), 
% 1.17/1.57    'is_a_theorem'( U ) ] )
% 1.17/1.57  , substitution( 0, [ :=( X, X ), :=( Y, Y ), :=( Z, Z ), :=( T, T ), :=( U
% 1.17/1.57    , U )] ), permutation( 0, [ ==>( 0, 1 ), ==>( 1, 0 )] ) ).
% 1.17/1.57  
% 1.17/1.57  
% 1.17/1.57  resolution(
% 1.17/1.57  clause( 10819, [ 'is_a_theorem'( or( not( or( not( X ), Y ) ), or( Z, or( 
% 1.17/1.57    not( or( not( T ), U ) ), or( not( X ), Y ) ) ) ) ) ] )
% 1.17/1.57  , clause( 215, [ 'is_a_theorem'( U ), ~( 'is_a_theorem'( or( not( or( not( 
% 1.17/1.57    or( not( X ), Y ) ), or( not( or( not( Z ), T ) ), or( not( X ), Y ) ) )
% 1.17/1.57     ), U ) ) ) ] )
% 1.17/1.57  , 1, clause( 94, [ 'is_a_theorem'( or( not( or( not( or( not( X ), Y ) ), Z
% 1.17/1.57     ) ), or( not( or( not( X ), Y ) ), or( T, Z ) ) ) ) ] )
% 1.17/1.57  , 0, substitution( 0, [ :=( X, X ), :=( Y, Y ), :=( Z, T ), :=( T, U ), 
% 1.17/1.57    :=( U, or( not( or( not( X ), Y ) ), or( Z, or( not( or( not( T ), U ) )
% 1.17/1.57    , or( not( X ), Y ) ) ) ) )] ), substitution( 1, [ :=( X, X ), :=( Y, Y )
% 1.17/1.57    , :=( Z, or( not( or( not( T ), U ) ), or( not( X ), Y ) ) ), :=( T, Z )] )
% 1.17/1.57    ).
% 1.17/1.57  
% 1.17/1.57  
% 1.17/1.57  subsumption(
% 1.17/1.57  clause( 218, [ 'is_a_theorem'( or( not( or( not( X ), Y ) ), or( Z, or( not( 
% 1.17/1.57    or( not( T ), U ) ), or( not( X ), Y ) ) ) ) ) ] )
% 1.17/1.57  , clause( 10819, [ 'is_a_theorem'( or( not( or( not( X ), Y ) ), or( Z, or( 
% 1.17/1.57    not( or( not( T ), U ) ), or( not( X ), Y ) ) ) ) ) ] )
% 1.17/1.57  , substitution( 0, [ :=( X, X ), :=( Y, Y ), :=( Z, Z ), :=( T, T ), :=( U
% 1.17/1.57    , U )] ), permutation( 0, [ ==>( 0, 0 )] ) ).
% 1.17/1.57  
% 1.17/1.57  
% 1.17/1.57  resolution(
% 1.17/1.57  clause( 10821, [ ~( 'is_a_theorem'( or( not( or( not( or( not( X ), Y ) ), 
% 1.17/1.57    or( Z, or( not( or( not( T ), U ) ), or( not( X ), Y ) ) ) ) ), W ) ) ), 
% 1.17/1.57    'is_a_theorem'( W ) ] )
% 1.17/1.57  , clause( 0, [ ~( 'is_a_theorem'( or( not( X ), Y ) ) ), 'is_a_theorem'( Y
% 1.17/1.57     ), ~( 'is_a_theorem'( X ) ) ] )
% 1.17/1.57  , 2, clause( 218, [ 'is_a_theorem'( or( not( or( not( X ), Y ) ), or( Z, or( 
% 1.17/1.57    not( or( not( T ), U ) ), or( not( X ), Y ) ) ) ) ) ] )
% 1.17/1.57  , 0, substitution( 0, [ :=( X, or( not( or( not( X ), Y ) ), or( Z, or( not( 
% 1.17/1.57    or( not( T ), U ) ), or( not( X ), Y ) ) ) ) ), :=( Y, W )] ), 
% 1.17/1.57    substitution( 1, [ :=( X, X ), :=( Y, Y ), :=( Z, Z ), :=( T, T ), :=( U
% 1.17/1.57    , U )] )).
% 1.17/1.57  
% 1.17/1.57  
% 1.17/1.57  subsumption(
% 1.17/1.57  clause( 230, [ 'is_a_theorem'( W ), ~( 'is_a_theorem'( or( not( or( not( or( 
% 1.17/1.57    not( X ), Y ) ), or( Z, or( not( or( not( T ), U ) ), or( not( X ), Y ) )
% 1.17/1.57     ) ) ), W ) ) ) ] )
% 1.17/1.57  , clause( 10821, [ ~( 'is_a_theorem'( or( not( or( not( or( not( X ), Y ) )
% 1.17/1.57    , or( Z, or( not( or( not( T ), U ) ), or( not( X ), Y ) ) ) ) ), W ) ) )
% 1.17/1.57    , 'is_a_theorem'( W ) ] )
% 1.17/1.57  , substitution( 0, [ :=( X, X ), :=( Y, Y ), :=( Z, Z ), :=( T, T ), :=( U
% 1.17/1.57    , U ), :=( W, W )] ), permutation( 0, [ ==>( 0, 1 ), ==>( 1, 0 )] ) ).
% 1.17/1.57  
% 1.17/1.57  
% 1.17/1.57  resolution(
% 1.17/1.57  clause( 10822, [ 'is_a_theorem'( or( not( or( not( X ), or( not( or( not( Y
% 1.17/1.57     ), Z ) ), or( or( not( Z ), T ), Z ) ) ) ), or( U, or( W, or( not( or( 
% 1.17/1.57    not( Y ), Z ) ), or( or( not( Z ), T ), Z ) ) ) ) ) ) ] )
% 1.17/1.57  , clause( 28, [ 'is_a_theorem'( W ), ~( 'is_a_theorem'( or( not( or( not( 
% 1.17/1.57    or( not( X ), or( or( not( Y ), Z ), Y ) ) ), or( T, or( not( or( not( U
% 1.17/1.57     ), Y ) ), or( or( not( Y ), Z ), Y ) ) ) ) ), W ) ) ) ] )
% 1.17/1.57  , 1, clause( 18, [ 'is_a_theorem'( or( not( or( not( or( not( X ), Y ) ), 
% 1.17/1.57    or( Z, X ) ) ), or( not( or( not( T ), X ) ), or( U, or( Z, X ) ) ) ) ) ]
% 1.17/1.57     )
% 1.17/1.57  , 0, substitution( 0, [ :=( X, or( not( or( not( Y ), Z ) ), or( or( not( Z
% 1.17/1.57     ), T ), Z ) ) ), :=( Y, Z ), :=( Z, T ), :=( T, W ), :=( U, Y ), :=( W, 
% 1.17/1.57    or( not( or( not( X ), or( not( or( not( Y ), Z ) ), or( or( not( Z ), T
% 1.17/1.57     ), Z ) ) ) ), or( U, or( W, or( not( or( not( Y ), Z ) ), or( or( not( Z
% 1.17/1.57     ), T ), Z ) ) ) ) ) )] ), substitution( 1, [ :=( X, or( not( or( not( Y
% 1.17/1.57     ), Z ) ), or( or( not( Z ), T ), Z ) ) ), :=( Y, or( or( not( Z ), T ), 
% 1.17/1.57    Z ) ), :=( Z, W ), :=( T, X ), :=( U, U )] )).
% 1.17/1.57  
% 1.17/1.57  
% 1.17/1.57  subsumption(
% 1.17/1.57  clause( 257, [ 'is_a_theorem'( or( not( or( not( X ), or( not( or( not( Y )
% 1.17/1.57    , Z ) ), or( or( not( Z ), T ), Z ) ) ) ), or( U, or( W, or( not( or( not( 
% 1.17/1.57    Y ), Z ) ), or( or( not( Z ), T ), Z ) ) ) ) ) ) ] )
% 1.17/1.57  , clause( 10822, [ 'is_a_theorem'( or( not( or( not( X ), or( not( or( not( 
% 1.17/1.57    Y ), Z ) ), or( or( not( Z ), T ), Z ) ) ) ), or( U, or( W, or( not( or( 
% 1.17/1.57    not( Y ), Z ) ), or( or( not( Z ), T ), Z ) ) ) ) ) ) ] )
% 1.17/1.57  , substitution( 0, [ :=( X, X ), :=( Y, Y ), :=( Z, Z ), :=( T, T ), :=( U
% 1.17/1.57    , U ), :=( W, W )] ), permutation( 0, [ ==>( 0, 0 )] ) ).
% 1.17/1.57  
% 1.17/1.57  
% 1.17/1.57  resolution(
% 1.17/1.57  clause( 10823, [ 'is_a_theorem'( or( not( or( not( not( or( not( X ), Y ) )
% 1.17/1.57     ), Z ) ), or( T, or( or( not( Z ), U ), Z ) ) ) ) ] )
% 1.17/1.57  , clause( 230, [ 'is_a_theorem'( W ), ~( 'is_a_theorem'( or( not( or( not( 
% 1.17/1.57    or( not( X ), Y ) ), or( Z, or( not( or( not( T ), U ) ), or( not( X ), Y
% 1.17/1.57     ) ) ) ) ), W ) ) ) ] )
% 1.17/1.57  , 1, clause( 1, [ 'is_a_theorem'( or( not( or( not( or( not( X ), Y ) ), or( 
% 1.17/1.57    Z, or( T, U ) ) ) ), or( not( or( not( T ), X ) ), or( Z, or( U, X ) ) )
% 1.17/1.57     ) ) ] )
% 1.17/1.57  , 0, substitution( 0, [ :=( X, Z ), :=( Y, U ), :=( Z, T ), :=( T, X ), 
% 1.17/1.57    :=( U, Y ), :=( W, or( not( or( not( not( or( not( X ), Y ) ) ), Z ) ), 
% 1.17/1.57    or( T, or( or( not( Z ), U ), Z ) ) ) )] ), substitution( 1, [ :=( X, Z )
% 1.17/1.57    , :=( Y, U ), :=( Z, T ), :=( T, not( or( not( X ), Y ) ) ), :=( U, or( 
% 1.17/1.57    not( Z ), U ) )] )).
% 1.17/1.57  
% 1.17/1.57  
% 1.17/1.57  subsumption(
% 1.17/1.57  clause( 377, [ 'is_a_theorem'( or( not( or( not( not( or( not( X ), Y ) ) )
% 1.17/1.57    , Z ) ), or( T, or( or( not( Z ), U ), Z ) ) ) ) ] )
% 1.17/1.57  , clause( 10823, [ 'is_a_theorem'( or( not( or( not( not( or( not( X ), Y )
% 1.17/1.57     ) ), Z ) ), or( T, or( or( not( Z ), U ), Z ) ) ) ) ] )
% 1.17/1.57  , substitution( 0, [ :=( X, X ), :=( Y, Y ), :=( Z, Z ), :=( T, T ), :=( U
% 1.17/1.57    , U )] ), permutation( 0, [ ==>( 0, 0 )] ) ).
% 1.17/1.57  
% 1.17/1.57  
% 1.17/1.57  resolution(
% 1.17/1.57  clause( 10825, [ ~( 'is_a_theorem'( or( not( or( not( or( not( not( or( not( 
% 1.17/1.57    X ), Y ) ) ), Z ) ), or( T, or( or( not( Z ), U ), Z ) ) ) ), W ) ) ), 
% 1.17/1.57    'is_a_theorem'( W ) ] )
% 1.17/1.57  , clause( 0, [ ~( 'is_a_theorem'( or( not( X ), Y ) ) ), 'is_a_theorem'( Y
% 1.17/1.57     ), ~( 'is_a_theorem'( X ) ) ] )
% 1.17/1.57  , 2, clause( 377, [ 'is_a_theorem'( or( not( or( not( not( or( not( X ), Y
% 1.17/1.57     ) ) ), Z ) ), or( T, or( or( not( Z ), U ), Z ) ) ) ) ] )
% 1.17/1.57  , 0, substitution( 0, [ :=( X, or( not( or( not( not( or( not( X ), Y ) ) )
% 1.17/1.57    , Z ) ), or( T, or( or( not( Z ), U ), Z ) ) ) ), :=( Y, W )] ), 
% 1.17/1.57    substitution( 1, [ :=( X, X ), :=( Y, Y ), :=( Z, Z ), :=( T, T ), :=( U
% 1.17/1.57    , U )] )).
% 1.17/1.57  
% 1.17/1.57  
% 1.17/1.57  subsumption(
% 1.17/1.57  clause( 399, [ 'is_a_theorem'( W ), ~( 'is_a_theorem'( or( not( or( not( or( 
% 1.17/1.57    not( not( or( not( X ), Y ) ) ), Z ) ), or( T, or( or( not( Z ), U ), Z )
% 1.17/1.57     ) ) ), W ) ) ) ] )
% 1.17/1.57  , clause( 10825, [ ~( 'is_a_theorem'( or( not( or( not( or( not( not( or( 
% 1.17/1.57    not( X ), Y ) ) ), Z ) ), or( T, or( or( not( Z ), U ), Z ) ) ) ), W ) )
% 1.17/1.57     ), 'is_a_theorem'( W ) ] )
% 1.17/1.57  , substitution( 0, [ :=( X, X ), :=( Y, Y ), :=( Z, Z ), :=( T, T ), :=( U
% 1.17/1.57    , U ), :=( W, W )] ), permutation( 0, [ ==>( 0, 1 ), ==>( 1, 0 )] ) ).
% 1.17/1.57  
% 1.17/1.57  
% 1.17/1.57  resolution(
% 1.17/1.57  clause( 10826, [ 'is_a_theorem'( or( X, or( not( or( not( Y ), Z ) ), or( 
% 1.17/1.57    not( Z ), or( or( not( Z ), T ), Z ) ) ) ) ) ] )
% 1.17/1.57  , clause( 399, [ 'is_a_theorem'( W ), ~( 'is_a_theorem'( or( not( or( not( 
% 1.17/1.57    or( not( not( or( not( X ), Y ) ) ), Z ) ), or( T, or( or( not( Z ), U )
% 1.17/1.57    , Z ) ) ) ), W ) ) ) ] )
% 1.17/1.57  , 1, clause( 21, [ 'is_a_theorem'( or( not( or( not( X ), or( not( Y ), or( 
% 1.17/1.57    Z, Y ) ) ) ), or( T, or( not( or( not( U ), Y ) ), or( not( Y ), or( Z, Y
% 1.17/1.57     ) ) ) ) ) ) ] )
% 1.17/1.57  , 0, substitution( 0, [ :=( X, U ), :=( Y, W ), :=( Z, Z ), :=( T, not( Z )
% 1.17/1.57     ), :=( U, T ), :=( W, or( X, or( not( or( not( Y ), Z ) ), or( not( Z )
% 1.17/1.57    , or( or( not( Z ), T ), Z ) ) ) ) )] ), substitution( 1, [ :=( X, or( 
% 1.17/1.57    not( not( or( not( U ), W ) ) ), Z ) ), :=( Y, Z ), :=( Z, or( not( Z ), 
% 1.17/1.57    T ) ), :=( T, X ), :=( U, Y )] )).
% 1.17/1.57  
% 1.17/1.57  
% 1.17/1.57  subsumption(
% 1.17/1.57  clause( 452, [ 'is_a_theorem'( or( X, or( not( or( not( Y ), Z ) ), or( not( 
% 1.17/1.57    Z ), or( or( not( Z ), T ), Z ) ) ) ) ) ] )
% 1.17/1.57  , clause( 10826, [ 'is_a_theorem'( or( X, or( not( or( not( Y ), Z ) ), or( 
% 1.17/1.57    not( Z ), or( or( not( Z ), T ), Z ) ) ) ) ) ] )
% 1.17/1.57  , substitution( 0, [ :=( X, X ), :=( Y, Y ), :=( Z, Z ), :=( T, T )] ), 
% 1.17/1.57    permutation( 0, [ ==>( 0, 0 )] ) ).
% 1.17/1.57  
% 1.17/1.57  
% 1.17/1.57  resolution(
% 1.17/1.57  clause( 10827, [ 'is_a_theorem'( or( not( or( not( X ), Y ) ), or( not( Y )
% 1.17/1.57    , or( or( not( Y ), Z ), Y ) ) ) ) ] )
% 1.17/1.57  , clause( 399, [ 'is_a_theorem'( W ), ~( 'is_a_theorem'( or( not( or( not( 
% 1.17/1.57    or( not( not( or( not( X ), Y ) ) ), Z ) ), or( T, or( or( not( Z ), U )
% 1.17/1.57    , Z ) ) ) ), W ) ) ) ] )
% 1.17/1.57  , 1, clause( 452, [ 'is_a_theorem'( or( X, or( not( or( not( Y ), Z ) ), or( 
% 1.17/1.57    not( Z ), or( or( not( Z ), T ), Z ) ) ) ) ) ] )
% 1.17/1.57  , 0, substitution( 0, [ :=( X, T ), :=( Y, U ), :=( Z, W ), :=( T, V0 ), 
% 1.17/1.57    :=( U, V1 ), :=( W, or( not( or( not( X ), Y ) ), or( not( Y ), or( or( 
% 1.17/1.57    not( Y ), Z ), Y ) ) ) )] ), substitution( 1, [ :=( X, not( or( not( or( 
% 1.17/1.57    not( not( or( not( T ), U ) ) ), W ) ), or( V0, or( or( not( W ), V1 ), W
% 1.17/1.57     ) ) ) ) ), :=( Y, X ), :=( Z, Y ), :=( T, Z )] )).
% 1.17/1.57  
% 1.17/1.57  
% 1.17/1.57  subsumption(
% 1.17/1.57  clause( 457, [ 'is_a_theorem'( or( not( or( not( X ), Y ) ), or( not( Y ), 
% 1.17/1.57    or( or( not( Y ), Z ), Y ) ) ) ) ] )
% 1.17/1.57  , clause( 10827, [ 'is_a_theorem'( or( not( or( not( X ), Y ) ), or( not( Y
% 1.17/1.57     ), or( or( not( Y ), Z ), Y ) ) ) ) ] )
% 1.17/1.57  , substitution( 0, [ :=( X, X ), :=( Y, Y ), :=( Z, Z )] ), 
% 1.17/1.57    permutation( 0, [ ==>( 0, 0 )] ) ).
% 1.17/1.57  
% 1.17/1.57  
% 1.17/1.57  resolution(
% 1.17/1.57  clause( 10829, [ ~( 'is_a_theorem'( or( not( or( not( or( not( X ), Y ) ), 
% 1.17/1.57    or( not( Y ), or( or( not( Y ), Z ), Y ) ) ) ), T ) ) ), 'is_a_theorem'( 
% 1.17/1.57    T ) ] )
% 1.17/1.57  , clause( 0, [ ~( 'is_a_theorem'( or( not( X ), Y ) ) ), 'is_a_theorem'( Y
% 1.17/1.57     ), ~( 'is_a_theorem'( X ) ) ] )
% 1.17/1.57  , 2, clause( 457, [ 'is_a_theorem'( or( not( or( not( X ), Y ) ), or( not( 
% 1.17/1.57    Y ), or( or( not( Y ), Z ), Y ) ) ) ) ] )
% 1.17/1.57  , 0, substitution( 0, [ :=( X, or( not( or( not( X ), Y ) ), or( not( Y ), 
% 1.17/1.57    or( or( not( Y ), Z ), Y ) ) ) ), :=( Y, T )] ), substitution( 1, [ :=( X
% 1.17/1.57    , X ), :=( Y, Y ), :=( Z, Z )] )).
% 1.17/1.57  
% 1.17/1.57  
% 1.17/1.57  subsumption(
% 1.17/1.57  clause( 463, [ 'is_a_theorem'( T ), ~( 'is_a_theorem'( or( not( or( not( or( 
% 1.17/1.57    not( X ), Y ) ), or( not( Y ), or( or( not( Y ), Z ), Y ) ) ) ), T ) ) )
% 1.17/1.57     ] )
% 1.17/1.57  , clause( 10829, [ ~( 'is_a_theorem'( or( not( or( not( or( not( X ), Y ) )
% 1.17/1.57    , or( not( Y ), or( or( not( Y ), Z ), Y ) ) ) ), T ) ) ), 'is_a_theorem'( 
% 1.17/1.57    T ) ] )
% 1.17/1.57  , substitution( 0, [ :=( X, X ), :=( Y, Y ), :=( Z, Z ), :=( T, T )] ), 
% 1.17/1.57    permutation( 0, [ ==>( 0, 1 ), ==>( 1, 0 )] ) ).
% 1.17/1.57  
% 1.17/1.57  
% 1.17/1.57  resolution(
% 1.17/1.57  clause( 10830, [ 'is_a_theorem'( or( not( or( not( or( not( X ), Y ) ), Z )
% 1.17/1.57     ), or( not( X ), or( X, Z ) ) ) ) ] )
% 1.17/1.57  , clause( 463, [ 'is_a_theorem'( T ), ~( 'is_a_theorem'( or( not( or( not( 
% 1.17/1.57    or( not( X ), Y ) ), or( not( Y ), or( or( not( Y ), Z ), Y ) ) ) ), T )
% 1.17/1.57     ) ) ] )
% 1.17/1.57  , 1, clause( 1, [ 'is_a_theorem'( or( not( or( not( or( not( X ), Y ) ), or( 
% 1.17/1.57    Z, or( T, U ) ) ) ), or( not( or( not( T ), X ) ), or( Z, or( U, X ) ) )
% 1.17/1.57     ) ) ] )
% 1.17/1.57  , 0, substitution( 0, [ :=( X, Z ), :=( Y, X ), :=( Z, Y ), :=( T, or( not( 
% 1.17/1.57    or( not( or( not( X ), Y ) ), Z ) ), or( not( X ), or( X, Z ) ) ) )] ), 
% 1.17/1.57    substitution( 1, [ :=( X, Z ), :=( Y, X ), :=( Z, not( X ) ), :=( T, or( 
% 1.17/1.57    not( X ), Y ) ), :=( U, X )] )).
% 1.17/1.57  
% 1.17/1.57  
% 1.17/1.57  subsumption(
% 1.17/1.57  clause( 555, [ 'is_a_theorem'( or( not( or( not( or( not( X ), Y ) ), Z ) )
% 1.17/1.57    , or( not( X ), or( X, Z ) ) ) ) ] )
% 1.17/1.57  , clause( 10830, [ 'is_a_theorem'( or( not( or( not( or( not( X ), Y ) ), Z
% 1.17/1.57     ) ), or( not( X ), or( X, Z ) ) ) ) ] )
% 1.17/1.57  , substitution( 0, [ :=( X, X ), :=( Y, Y ), :=( Z, Z )] ), 
% 1.17/1.57    permutation( 0, [ ==>( 0, 0 )] ) ).
% 1.17/1.57  
% 1.17/1.57  
% 1.17/1.57  resolution(
% 1.17/1.57  clause( 10832, [ ~( 'is_a_theorem'( or( not( or( not( or( not( or( not( X )
% 1.17/1.57    , Y ) ), Z ) ), or( not( X ), or( X, Z ) ) ) ), T ) ) ), 'is_a_theorem'( 
% 1.17/1.57    T ) ] )
% 1.17/1.57  , clause( 0, [ ~( 'is_a_theorem'( or( not( X ), Y ) ) ), 'is_a_theorem'( Y
% 1.17/1.57     ), ~( 'is_a_theorem'( X ) ) ] )
% 1.17/1.57  , 2, clause( 555, [ 'is_a_theorem'( or( not( or( not( or( not( X ), Y ) ), 
% 1.17/1.57    Z ) ), or( not( X ), or( X, Z ) ) ) ) ] )
% 1.17/1.57  , 0, substitution( 0, [ :=( X, or( not( or( not( or( not( X ), Y ) ), Z ) )
% 1.17/1.57    , or( not( X ), or( X, Z ) ) ) ), :=( Y, T )] ), substitution( 1, [ :=( X
% 1.17/1.57    , X ), :=( Y, Y ), :=( Z, Z )] )).
% 1.17/1.57  
% 1.17/1.57  
% 1.17/1.57  subsumption(
% 1.17/1.57  clause( 575, [ 'is_a_theorem'( T ), ~( 'is_a_theorem'( or( not( or( not( or( 
% 1.17/1.57    not( or( not( X ), Y ) ), Z ) ), or( not( X ), or( X, Z ) ) ) ), T ) ) )
% 1.17/1.57     ] )
% 1.17/1.57  , clause( 10832, [ ~( 'is_a_theorem'( or( not( or( not( or( not( or( not( X
% 1.17/1.57     ), Y ) ), Z ) ), or( not( X ), or( X, Z ) ) ) ), T ) ) ), 'is_a_theorem'( 
% 1.17/1.57    T ) ] )
% 1.17/1.57  , substitution( 0, [ :=( X, X ), :=( Y, Y ), :=( Z, Z ), :=( T, T )] ), 
% 1.17/1.57    permutation( 0, [ ==>( 0, 1 ), ==>( 1, 0 )] ) ).
% 1.17/1.57  
% 1.17/1.57  
% 1.17/1.57  resolution(
% 1.17/1.57  clause( 10833, [ 'is_a_theorem'( or( X, or( not( or( not( Y ), Z ) ), or( 
% 1.17/1.57    not( Z ), or( Z, Z ) ) ) ) ) ] )
% 1.17/1.57  , clause( 575, [ 'is_a_theorem'( T ), ~( 'is_a_theorem'( or( not( or( not( 
% 1.17/1.57    or( not( or( not( X ), Y ) ), Z ) ), or( not( X ), or( X, Z ) ) ) ), T )
% 1.17/1.57     ) ) ] )
% 1.17/1.57  , 1, clause( 21, [ 'is_a_theorem'( or( not( or( not( X ), or( not( Y ), or( 
% 1.17/1.57    Z, Y ) ) ) ), or( T, or( not( or( not( U ), Y ) ), or( not( Y ), or( Z, Y
% 1.17/1.57     ) ) ) ) ) ) ] )
% 1.17/1.57  , 0, substitution( 0, [ :=( X, Z ), :=( Y, T ), :=( Z, Z ), :=( T, or( X, 
% 1.17/1.57    or( not( or( not( Y ), Z ) ), or( not( Z ), or( Z, Z ) ) ) ) )] ), 
% 1.17/1.57    substitution( 1, [ :=( X, or( not( or( not( Z ), T ) ), Z ) ), :=( Y, Z )
% 1.17/1.57    , :=( Z, Z ), :=( T, X ), :=( U, Y )] )).
% 1.17/1.57  
% 1.17/1.57  
% 1.17/1.57  subsumption(
% 1.17/1.57  clause( 872, [ 'is_a_theorem'( or( X, or( not( or( not( Y ), Z ) ), or( not( 
% 1.17/1.57    Z ), or( Z, Z ) ) ) ) ) ] )
% 1.17/1.57  , clause( 10833, [ 'is_a_theorem'( or( X, or( not( or( not( Y ), Z ) ), or( 
% 1.17/1.57    not( Z ), or( Z, Z ) ) ) ) ) ] )
% 1.17/1.57  , substitution( 0, [ :=( X, X ), :=( Y, Y ), :=( Z, Z )] ), 
% 1.17/1.57    permutation( 0, [ ==>( 0, 0 )] ) ).
% 1.17/1.57  
% 1.17/1.57  
% 1.17/1.57  resolution(
% 1.17/1.57  clause( 10834, [ 'is_a_theorem'( or( not( or( not( X ), Y ) ), or( not( Y )
% 1.17/1.57    , or( Y, Y ) ) ) ) ] )
% 1.17/1.57  , clause( 575, [ 'is_a_theorem'( T ), ~( 'is_a_theorem'( or( not( or( not( 
% 1.17/1.57    or( not( or( not( X ), Y ) ), Z ) ), or( not( X ), or( X, Z ) ) ) ), T )
% 1.17/1.57     ) ) ] )
% 1.17/1.57  , 1, clause( 872, [ 'is_a_theorem'( or( X, or( not( or( not( Y ), Z ) ), or( 
% 1.17/1.57    not( Z ), or( Z, Z ) ) ) ) ) ] )
% 1.17/1.57  , 0, substitution( 0, [ :=( X, Z ), :=( Y, T ), :=( Z, U ), :=( T, or( not( 
% 1.17/1.57    or( not( X ), Y ) ), or( not( Y ), or( Y, Y ) ) ) )] ), substitution( 1
% 1.17/1.57    , [ :=( X, not( or( not( or( not( or( not( Z ), T ) ), U ) ), or( not( Z
% 1.17/1.57     ), or( Z, U ) ) ) ) ), :=( Y, X ), :=( Z, Y )] )).
% 1.17/1.57  
% 1.17/1.57  
% 1.17/1.57  subsumption(
% 1.17/1.57  clause( 876, [ 'is_a_theorem'( or( not( or( not( X ), Y ) ), or( not( Y ), 
% 1.17/1.57    or( Y, Y ) ) ) ) ] )
% 1.17/1.57  , clause( 10834, [ 'is_a_theorem'( or( not( or( not( X ), Y ) ), or( not( Y
% 1.17/1.57     ), or( Y, Y ) ) ) ) ] )
% 1.17/1.57  , substitution( 0, [ :=( X, X ), :=( Y, Y )] ), permutation( 0, [ ==>( 0, 0
% 1.17/1.57     )] ) ).
% 1.17/1.57  
% 1.17/1.57  
% 1.17/1.57  resolution(
% 1.17/1.57  clause( 10836, [ ~( 'is_a_theorem'( or( not( or( not( or( not( X ), Y ) ), 
% 1.17/1.57    or( not( Y ), or( Y, Y ) ) ) ), Z ) ) ), 'is_a_theorem'( Z ) ] )
% 1.17/1.57  , clause( 0, [ ~( 'is_a_theorem'( or( not( X ), Y ) ) ), 'is_a_theorem'( Y
% 1.17/1.57     ), ~( 'is_a_theorem'( X ) ) ] )
% 1.17/1.57  , 2, clause( 876, [ 'is_a_theorem'( or( not( or( not( X ), Y ) ), or( not( 
% 1.17/1.57    Y ), or( Y, Y ) ) ) ) ] )
% 1.17/1.57  , 0, substitution( 0, [ :=( X, or( not( or( not( X ), Y ) ), or( not( Y ), 
% 1.17/1.57    or( Y, Y ) ) ) ), :=( Y, Z )] ), substitution( 1, [ :=( X, X ), :=( Y, Y
% 1.17/1.57     )] )).
% 1.17/1.57  
% 1.17/1.57  
% 1.17/1.57  subsumption(
% 1.17/1.57  clause( 885, [ 'is_a_theorem'( Z ), ~( 'is_a_theorem'( or( not( or( not( or( 
% 1.17/1.57    not( X ), Y ) ), or( not( Y ), or( Y, Y ) ) ) ), Z ) ) ) ] )
% 1.17/1.57  , clause( 10836, [ ~( 'is_a_theorem'( or( not( or( not( or( not( X ), Y ) )
% 1.17/1.57    , or( not( Y ), or( Y, Y ) ) ) ), Z ) ) ), 'is_a_theorem'( Z ) ] )
% 1.17/1.57  , substitution( 0, [ :=( X, X ), :=( Y, Y ), :=( Z, Z )] ), 
% 1.17/1.57    permutation( 0, [ ==>( 0, 1 ), ==>( 1, 0 )] ) ).
% 1.17/1.57  
% 1.17/1.57  
% 1.17/1.57  resolution(
% 1.17/1.57  clause( 10837, [ 'is_a_theorem'( or( not( or( not( X ), Y ) ), or( not( X )
% 1.17/1.57    , or( X, Y ) ) ) ) ] )
% 1.17/1.57  , clause( 885, [ 'is_a_theorem'( Z ), ~( 'is_a_theorem'( or( not( or( not( 
% 1.17/1.57    or( not( X ), Y ) ), or( not( Y ), or( Y, Y ) ) ) ), Z ) ) ) ] )
% 1.17/1.57  , 1, clause( 1, [ 'is_a_theorem'( or( not( or( not( or( not( X ), Y ) ), or( 
% 1.17/1.57    Z, or( T, U ) ) ) ), or( not( or( not( T ), X ) ), or( Z, or( U, X ) ) )
% 1.17/1.57     ) ) ] )
% 1.17/1.57  , 0, substitution( 0, [ :=( X, Y ), :=( Y, X ), :=( Z, or( not( or( not( X
% 1.17/1.57     ), Y ) ), or( not( X ), or( X, Y ) ) ) )] ), substitution( 1, [ :=( X, Y
% 1.17/1.57     ), :=( Y, X ), :=( Z, not( X ) ), :=( T, X ), :=( U, X )] )).
% 1.17/1.57  
% 1.17/1.57  
% 1.17/1.57  subsumption(
% 1.17/1.57  clause( 1003, [ 'is_a_theorem'( or( not( or( not( X ), Y ) ), or( not( X )
% 1.17/1.57    , or( X, Y ) ) ) ) ] )
% 1.17/1.57  , clause( 10837, [ 'is_a_theorem'( or( not( or( not( X ), Y ) ), or( not( X
% 1.17/1.57     ), or( X, Y ) ) ) ) ] )
% 1.17/1.57  , substitution( 0, [ :=( X, X ), :=( Y, Y )] ), permutation( 0, [ ==>( 0, 0
% 1.17/1.57     )] ) ).
% 1.17/1.57  
% 1.17/1.57  
% 1.17/1.57  resolution(
% 1.17/1.57  clause( 10839, [ ~( 'is_a_theorem'( or( not( or( not( or( not( X ), Y ) ), 
% 1.17/1.57    or( not( X ), or( X, Y ) ) ) ), Z ) ) ), 'is_a_theorem'( Z ) ] )
% 1.17/1.57  , clause( 0, [ ~( 'is_a_theorem'( or( not( X ), Y ) ) ), 'is_a_theorem'( Y
% 1.17/1.57     ), ~( 'is_a_theorem'( X ) ) ] )
% 1.17/1.57  , 2, clause( 1003, [ 'is_a_theorem'( or( not( or( not( X ), Y ) ), or( not( 
% 1.17/1.57    X ), or( X, Y ) ) ) ) ] )
% 1.17/1.57  , 0, substitution( 0, [ :=( X, or( not( or( not( X ), Y ) ), or( not( X ), 
% 1.17/1.57    or( X, Y ) ) ) ), :=( Y, Z )] ), substitution( 1, [ :=( X, X ), :=( Y, Y
% 1.17/1.57     )] )).
% 1.17/1.57  
% 1.17/1.57  
% 1.17/1.57  subsumption(
% 1.17/1.57  clause( 1013, [ 'is_a_theorem'( Z ), ~( 'is_a_theorem'( or( not( or( not( 
% 1.17/1.57    or( not( X ), Y ) ), or( not( X ), or( X, Y ) ) ) ), Z ) ) ) ] )
% 1.17/1.57  , clause( 10839, [ ~( 'is_a_theorem'( or( not( or( not( or( not( X ), Y ) )
% 1.17/1.57    , or( not( X ), or( X, Y ) ) ) ), Z ) ) ), 'is_a_theorem'( Z ) ] )
% 1.17/1.57  , substitution( 0, [ :=( X, X ), :=( Y, Y ), :=( Z, Z )] ), 
% 1.17/1.57    permutation( 0, [ ==>( 0, 1 ), ==>( 1, 0 )] ) ).
% 1.17/1.57  
% 1.17/1.57  
% 1.17/1.57  resolution(
% 1.17/1.57  clause( 10840, [ 'is_a_theorem'( or( not( or( not( X ), X ) ), or( not( X )
% 1.17/1.57    , or( Y, X ) ) ) ) ] )
% 1.17/1.57  , clause( 1013, [ 'is_a_theorem'( Z ), ~( 'is_a_theorem'( or( not( or( not( 
% 1.17/1.57    or( not( X ), Y ) ), or( not( X ), or( X, Y ) ) ) ), Z ) ) ) ] )
% 1.17/1.57  , 1, clause( 1, [ 'is_a_theorem'( or( not( or( not( or( not( X ), Y ) ), or( 
% 1.17/1.57    Z, or( T, U ) ) ) ), or( not( or( not( T ), X ) ), or( Z, or( U, X ) ) )
% 1.17/1.57     ) ) ] )
% 1.17/1.57  , 0, substitution( 0, [ :=( X, X ), :=( Y, Y ), :=( Z, or( not( or( not( X
% 1.17/1.57     ), X ) ), or( not( X ), or( Y, X ) ) ) )] ), substitution( 1, [ :=( X, X
% 1.17/1.57     ), :=( Y, Y ), :=( Z, not( X ) ), :=( T, X ), :=( U, Y )] )).
% 1.17/1.57  
% 1.17/1.57  
% 1.17/1.57  subsumption(
% 1.17/1.57  clause( 1227, [ 'is_a_theorem'( or( not( or( not( X ), X ) ), or( not( X )
% 1.17/1.57    , or( Y, X ) ) ) ) ] )
% 1.17/1.57  , clause( 10840, [ 'is_a_theorem'( or( not( or( not( X ), X ) ), or( not( X
% 1.17/1.57     ), or( Y, X ) ) ) ) ] )
% 1.17/1.57  , substitution( 0, [ :=( X, X ), :=( Y, Y )] ), permutation( 0, [ ==>( 0, 0
% 1.17/1.57     )] ) ).
% 1.17/1.57  
% 1.17/1.57  
% 1.17/1.57  resolution(
% 1.17/1.57  clause( 10842, [ ~( 'is_a_theorem'( or( not( or( not( or( not( X ), X ) ), 
% 1.17/1.57    or( not( X ), or( Y, X ) ) ) ), Z ) ) ), 'is_a_theorem'( Z ) ] )
% 1.17/1.57  , clause( 0, [ ~( 'is_a_theorem'( or( not( X ), Y ) ) ), 'is_a_theorem'( Y
% 1.17/1.57     ), ~( 'is_a_theorem'( X ) ) ] )
% 1.17/1.57  , 2, clause( 1227, [ 'is_a_theorem'( or( not( or( not( X ), X ) ), or( not( 
% 1.17/1.57    X ), or( Y, X ) ) ) ) ] )
% 1.17/1.57  , 0, substitution( 0, [ :=( X, or( not( or( not( X ), X ) ), or( not( X ), 
% 1.17/1.57    or( Y, X ) ) ) ), :=( Y, Z )] ), substitution( 1, [ :=( X, X ), :=( Y, Y
% 1.17/1.57     )] )).
% 1.17/1.57  
% 1.17/1.57  
% 1.17/1.57  subsumption(
% 1.17/1.57  clause( 1235, [ 'is_a_theorem'( Z ), ~( 'is_a_theorem'( or( not( or( not( 
% 1.17/1.57    or( not( X ), X ) ), or( not( X ), or( Y, X ) ) ) ), Z ) ) ) ] )
% 1.17/1.57  , clause( 10842, [ ~( 'is_a_theorem'( or( not( or( not( or( not( X ), X ) )
% 1.17/1.57    , or( not( X ), or( Y, X ) ) ) ), Z ) ) ), 'is_a_theorem'( Z ) ] )
% 1.17/1.57  , substitution( 0, [ :=( X, X ), :=( Y, Y ), :=( Z, Z )] ), 
% 1.17/1.57    permutation( 0, [ ==>( 0, 1 ), ==>( 1, 0 )] ) ).
% 1.17/1.57  
% 1.17/1.57  
% 1.17/1.57  resolution(
% 1.17/1.57  clause( 10843, [ 'is_a_theorem'( or( X, or( not( or( not( Y ), Z ) ), or( 
% 1.17/1.57    not( Z ), or( T, Z ) ) ) ) ) ] )
% 1.17/1.57  , clause( 1235, [ 'is_a_theorem'( Z ), ~( 'is_a_theorem'( or( not( or( not( 
% 1.17/1.57    or( not( X ), X ) ), or( not( X ), or( Y, X ) ) ) ), Z ) ) ) ] )
% 1.17/1.57  , 1, clause( 21, [ 'is_a_theorem'( or( not( or( not( X ), or( not( Y ), or( 
% 1.17/1.57    Z, Y ) ) ) ), or( T, or( not( or( not( U ), Y ) ), or( not( Y ), or( Z, Y
% 1.17/1.57     ) ) ) ) ) ) ] )
% 1.17/1.57  , 0, substitution( 0, [ :=( X, Z ), :=( Y, T ), :=( Z, or( X, or( not( or( 
% 1.17/1.57    not( Y ), Z ) ), or( not( Z ), or( T, Z ) ) ) ) )] ), substitution( 1, [ 
% 1.17/1.57    :=( X, or( not( Z ), Z ) ), :=( Y, Z ), :=( Z, T ), :=( T, X ), :=( U, Y
% 1.17/1.57     )] )).
% 1.17/1.57  
% 1.17/1.57  
% 1.17/1.57  subsumption(
% 1.17/1.57  clause( 1372, [ 'is_a_theorem'( or( X, or( not( or( not( Y ), Z ) ), or( 
% 1.17/1.57    not( Z ), or( T, Z ) ) ) ) ) ] )
% 1.17/1.57  , clause( 10843, [ 'is_a_theorem'( or( X, or( not( or( not( Y ), Z ) ), or( 
% 1.17/1.57    not( Z ), or( T, Z ) ) ) ) ) ] )
% 1.17/1.57  , substitution( 0, [ :=( X, X ), :=( Y, Y ), :=( Z, Z ), :=( T, T )] ), 
% 1.17/1.57    permutation( 0, [ ==>( 0, 0 )] ) ).
% 1.17/1.57  
% 1.17/1.57  
% 1.17/1.57  resolution(
% 1.17/1.57  clause( 10844, [ 'is_a_theorem'( or( not( or( not( X ), Y ) ), or( not( Y )
% 1.17/1.57    , or( Z, Y ) ) ) ) ] )
% 1.17/1.57  , clause( 1235, [ 'is_a_theorem'( Z ), ~( 'is_a_theorem'( or( not( or( not( 
% 1.17/1.57    or( not( X ), X ) ), or( not( X ), or( Y, X ) ) ) ), Z ) ) ) ] )
% 1.17/1.57  , 1, clause( 1372, [ 'is_a_theorem'( or( X, or( not( or( not( Y ), Z ) ), 
% 1.17/1.57    or( not( Z ), or( T, Z ) ) ) ) ) ] )
% 1.17/1.57  , 0, substitution( 0, [ :=( X, T ), :=( Y, U ), :=( Z, or( not( or( not( X
% 1.17/1.57     ), Y ) ), or( not( Y ), or( Z, Y ) ) ) )] ), substitution( 1, [ :=( X, 
% 1.17/1.57    not( or( not( or( not( T ), T ) ), or( not( T ), or( U, T ) ) ) ) ), :=( 
% 1.17/1.57    Y, X ), :=( Z, Y ), :=( T, Z )] )).
% 1.17/1.57  
% 1.17/1.57  
% 1.17/1.57  subsumption(
% 1.17/1.57  clause( 1384, [ 'is_a_theorem'( or( not( or( not( X ), Y ) ), or( not( Y )
% 1.17/1.57    , or( Z, Y ) ) ) ) ] )
% 1.17/1.57  , clause( 10844, [ 'is_a_theorem'( or( not( or( not( X ), Y ) ), or( not( Y
% 1.17/1.57     ), or( Z, Y ) ) ) ) ] )
% 1.17/1.57  , substitution( 0, [ :=( X, X ), :=( Y, Y ), :=( Z, Z )] ), 
% 1.17/1.57    permutation( 0, [ ==>( 0, 0 )] ) ).
% 1.17/1.57  
% 1.17/1.57  
% 1.17/1.57  resolution(
% 1.17/1.57  clause( 10846, [ ~( 'is_a_theorem'( or( not( or( not( or( not( X ), Y ) ), 
% 1.17/1.57    or( not( Y ), or( Z, Y ) ) ) ), T ) ) ), 'is_a_theorem'( T ) ] )
% 1.17/1.57  , clause( 0, [ ~( 'is_a_theorem'( or( not( X ), Y ) ) ), 'is_a_theorem'( Y
% 1.17/1.57     ), ~( 'is_a_theorem'( X ) ) ] )
% 1.17/1.57  , 2, clause( 1384, [ 'is_a_theorem'( or( not( or( not( X ), Y ) ), or( not( 
% 1.17/1.57    Y ), or( Z, Y ) ) ) ) ] )
% 1.17/1.57  , 0, substitution( 0, [ :=( X, or( not( or( not( X ), Y ) ), or( not( Y ), 
% 1.17/1.57    or( Z, Y ) ) ) ), :=( Y, T )] ), substitution( 1, [ :=( X, X ), :=( Y, Y
% 1.17/1.57     ), :=( Z, Z )] )).
% 1.17/1.57  
% 1.17/1.57  
% 1.17/1.57  subsumption(
% 1.17/1.57  clause( 1395, [ 'is_a_theorem'( T ), ~( 'is_a_theorem'( or( not( or( not( 
% 1.17/1.57    or( not( X ), Y ) ), or( not( Y ), or( Z, Y ) ) ) ), T ) ) ) ] )
% 1.17/1.57  , clause( 10846, [ ~( 'is_a_theorem'( or( not( or( not( or( not( X ), Y ) )
% 1.17/1.57    , or( not( Y ), or( Z, Y ) ) ) ), T ) ) ), 'is_a_theorem'( T ) ] )
% 1.17/1.57  , substitution( 0, [ :=( X, X ), :=( Y, Y ), :=( Z, Z ), :=( T, T )] ), 
% 1.17/1.57    permutation( 0, [ ==>( 0, 1 ), ==>( 1, 0 )] ) ).
% 1.17/1.57  
% 1.17/1.57  
% 1.17/1.57  resolution(
% 1.17/1.57  clause( 10847, [ 'is_a_theorem'( or( not( or( not( X ), or( Y, Z ) ) ), or( 
% 1.17/1.57    T, or( not( Z ), or( Y, Z ) ) ) ) ) ] )
% 1.17/1.57  , clause( 1395, [ 'is_a_theorem'( T ), ~( 'is_a_theorem'( or( not( or( not( 
% 1.17/1.57    or( not( X ), Y ) ), or( not( Y ), or( Z, Y ) ) ) ), T ) ) ) ] )
% 1.17/1.57  , 1, clause( 18, [ 'is_a_theorem'( or( not( or( not( or( not( X ), Y ) ), 
% 1.17/1.57    or( Z, X ) ) ), or( not( or( not( T ), X ) ), or( U, or( Z, X ) ) ) ) ) ]
% 1.17/1.57     )
% 1.17/1.57  , 0, substitution( 0, [ :=( X, or( Y, Z ) ), :=( Y, Z ), :=( Z, Y ), :=( T
% 1.17/1.57    , or( not( or( not( X ), or( Y, Z ) ) ), or( T, or( not( Z ), or( Y, Z )
% 1.17/1.57     ) ) ) )] ), substitution( 1, [ :=( X, or( Y, Z ) ), :=( Y, Z ), :=( Z, 
% 1.17/1.57    not( Z ) ), :=( T, X ), :=( U, T )] )).
% 1.17/1.57  
% 1.17/1.57  
% 1.17/1.57  subsumption(
% 1.17/1.57  clause( 1558, [ 'is_a_theorem'( or( not( or( not( X ), or( Y, Z ) ) ), or( 
% 1.17/1.57    T, or( not( Z ), or( Y, Z ) ) ) ) ) ] )
% 1.17/1.57  , clause( 10847, [ 'is_a_theorem'( or( not( or( not( X ), or( Y, Z ) ) ), 
% 1.17/1.57    or( T, or( not( Z ), or( Y, Z ) ) ) ) ) ] )
% 1.17/1.57  , substitution( 0, [ :=( X, X ), :=( Y, Y ), :=( Z, Z ), :=( T, T )] ), 
% 1.17/1.57    permutation( 0, [ ==>( 0, 0 )] ) ).
% 1.17/1.57  
% 1.17/1.57  
% 1.17/1.57  resolution(
% 1.17/1.57  clause( 10848, [ 'is_a_theorem'( or( not( or( not( X ), Y ) ), or( not( Z )
% 1.17/1.57    , or( Z, Y ) ) ) ) ] )
% 1.17/1.57  , clause( 1395, [ 'is_a_theorem'( T ), ~( 'is_a_theorem'( or( not( or( not( 
% 1.17/1.57    or( not( X ), Y ) ), or( not( Y ), or( Z, Y ) ) ) ), T ) ) ) ] )
% 1.17/1.57  , 1, clause( 1, [ 'is_a_theorem'( or( not( or( not( or( not( X ), Y ) ), or( 
% 1.17/1.57    Z, or( T, U ) ) ) ), or( not( or( not( T ), X ) ), or( Z, or( U, X ) ) )
% 1.17/1.57     ) ) ] )
% 1.17/1.57  , 0, substitution( 0, [ :=( X, Y ), :=( Y, Z ), :=( Z, X ), :=( T, or( not( 
% 1.17/1.57    or( not( X ), Y ) ), or( not( Z ), or( Z, Y ) ) ) )] ), substitution( 1
% 1.17/1.57    , [ :=( X, Y ), :=( Y, Z ), :=( Z, not( Z ) ), :=( T, X ), :=( U, Z )] )
% 1.17/1.57    ).
% 1.17/1.57  
% 1.17/1.57  
% 1.17/1.57  subsumption(
% 1.17/1.57  clause( 1559, [ 'is_a_theorem'( or( not( or( not( X ), Y ) ), or( not( Z )
% 1.17/1.57    , or( Z, Y ) ) ) ) ] )
% 1.17/1.57  , clause( 10848, [ 'is_a_theorem'( or( not( or( not( X ), Y ) ), or( not( Z
% 1.17/1.57     ), or( Z, Y ) ) ) ) ] )
% 1.17/1.57  , substitution( 0, [ :=( X, X ), :=( Y, Y ), :=( Z, Z )] ), 
% 1.17/1.57    permutation( 0, [ ==>( 0, 0 )] ) ).
% 1.17/1.57  
% 1.17/1.57  
% 1.17/1.57  resolution(
% 1.17/1.57  clause( 10849, [ 'is_a_theorem'( or( not( X ), or( X, or( Y, or( or( not( Z
% 1.17/1.57     ), T ), Z ) ) ) ) ) ] )
% 1.17/1.57  , clause( 399, [ 'is_a_theorem'( W ), ~( 'is_a_theorem'( or( not( or( not( 
% 1.17/1.57    or( not( not( or( not( X ), Y ) ) ), Z ) ), or( T, or( or( not( Z ), U )
% 1.17/1.57    , Z ) ) ) ), W ) ) ) ] )
% 1.17/1.57  , 1, clause( 1559, [ 'is_a_theorem'( or( not( or( not( X ), Y ) ), or( not( 
% 1.17/1.57    Z ), or( Z, Y ) ) ) ) ] )
% 1.17/1.57  , 0, substitution( 0, [ :=( X, U ), :=( Y, W ), :=( Z, Z ), :=( T, Y ), 
% 1.17/1.57    :=( U, T ), :=( W, or( not( X ), or( X, or( Y, or( or( not( Z ), T ), Z )
% 1.17/1.57     ) ) ) )] ), substitution( 1, [ :=( X, or( not( not( or( not( U ), W ) )
% 1.17/1.57     ), Z ) ), :=( Y, or( Y, or( or( not( Z ), T ), Z ) ) ), :=( Z, X )] )
% 1.17/1.57    ).
% 1.17/1.57  
% 1.17/1.57  
% 1.17/1.57  subsumption(
% 1.17/1.57  clause( 1574, [ 'is_a_theorem'( or( not( X ), or( X, or( Y, or( or( not( Z
% 1.17/1.57     ), T ), Z ) ) ) ) ) ] )
% 1.17/1.57  , clause( 10849, [ 'is_a_theorem'( or( not( X ), or( X, or( Y, or( or( not( 
% 1.17/1.57    Z ), T ), Z ) ) ) ) ) ] )
% 1.17/1.57  , substitution( 0, [ :=( X, X ), :=( Y, Y ), :=( Z, Z ), :=( T, T )] ), 
% 1.17/1.57    permutation( 0, [ ==>( 0, 0 )] ) ).
% 1.17/1.57  
% 1.17/1.57  
% 1.17/1.57  resolution(
% 1.17/1.57  clause( 10851, [ ~( 'is_a_theorem'( or( not( or( not( or( not( X ), Y ) ), 
% 1.17/1.57    or( not( Z ), or( Z, Y ) ) ) ), T ) ) ), 'is_a_theorem'( T ) ] )
% 1.17/1.57  , clause( 0, [ ~( 'is_a_theorem'( or( not( X ), Y ) ) ), 'is_a_theorem'( Y
% 1.17/1.57     ), ~( 'is_a_theorem'( X ) ) ] )
% 1.17/1.57  , 2, clause( 1559, [ 'is_a_theorem'( or( not( or( not( X ), Y ) ), or( not( 
% 1.17/1.57    Z ), or( Z, Y ) ) ) ) ] )
% 1.17/1.57  , 0, substitution( 0, [ :=( X, or( not( or( not( X ), Y ) ), or( not( Z ), 
% 1.17/1.57    or( Z, Y ) ) ) ), :=( Y, T )] ), substitution( 1, [ :=( X, X ), :=( Y, Y
% 1.17/1.57     ), :=( Z, Z )] )).
% 1.17/1.57  
% 1.17/1.57  
% 1.17/1.57  subsumption(
% 1.17/1.57  clause( 1579, [ 'is_a_theorem'( T ), ~( 'is_a_theorem'( or( not( or( not( 
% 1.17/1.57    or( not( X ), Y ) ), or( not( Z ), or( Z, Y ) ) ) ), T ) ) ) ] )
% 1.17/1.57  , clause( 10851, [ ~( 'is_a_theorem'( or( not( or( not( or( not( X ), Y ) )
% 1.17/1.57    , or( not( Z ), or( Z, Y ) ) ) ), T ) ) ), 'is_a_theorem'( T ) ] )
% 1.17/1.57  , substitution( 0, [ :=( X, X ), :=( Y, Y ), :=( Z, Z ), :=( T, T )] ), 
% 1.17/1.57    permutation( 0, [ ==>( 0, 1 ), ==>( 1, 0 )] ) ).
% 1.17/1.57  
% 1.17/1.57  
% 1.17/1.57  resolution(
% 1.17/1.57  clause( 10853, [ ~( 'is_a_theorem'( or( not( or( not( X ), or( X, or( Y, or( 
% 1.17/1.57    or( not( Z ), T ), Z ) ) ) ) ), U ) ) ), 'is_a_theorem'( U ) ] )
% 1.17/1.57  , clause( 0, [ ~( 'is_a_theorem'( or( not( X ), Y ) ) ), 'is_a_theorem'( Y
% 1.17/1.57     ), ~( 'is_a_theorem'( X ) ) ] )
% 1.17/1.57  , 2, clause( 1574, [ 'is_a_theorem'( or( not( X ), or( X, or( Y, or( or( 
% 1.17/1.57    not( Z ), T ), Z ) ) ) ) ) ] )
% 1.17/1.57  , 0, substitution( 0, [ :=( X, or( not( X ), or( X, or( Y, or( or( not( Z )
% 1.17/1.57    , T ), Z ) ) ) ) ), :=( Y, U )] ), substitution( 1, [ :=( X, X ), :=( Y, 
% 1.17/1.57    Y ), :=( Z, Z ), :=( T, T )] )).
% 1.17/1.57  
% 1.17/1.57  
% 1.17/1.57  subsumption(
% 1.17/1.57  clause( 1687, [ 'is_a_theorem'( U ), ~( 'is_a_theorem'( or( not( or( not( X
% 1.17/1.57     ), or( X, or( Y, or( or( not( Z ), T ), Z ) ) ) ) ), U ) ) ) ] )
% 1.17/1.57  , clause( 10853, [ ~( 'is_a_theorem'( or( not( or( not( X ), or( X, or( Y, 
% 1.17/1.57    or( or( not( Z ), T ), Z ) ) ) ) ), U ) ) ), 'is_a_theorem'( U ) ] )
% 1.17/1.57  , substitution( 0, [ :=( X, X ), :=( Y, Y ), :=( Z, Z ), :=( T, T ), :=( U
% 1.17/1.57    , U )] ), permutation( 0, [ ==>( 0, 1 ), ==>( 1, 0 )] ) ).
% 1.17/1.57  
% 1.17/1.57  
% 1.17/1.57  resolution(
% 1.17/1.57  clause( 10854, [ 'is_a_theorem'( or( not( or( not( X ), Y ) ), or( not( X )
% 1.17/1.57    , or( Z, Y ) ) ) ) ] )
% 1.17/1.57  , clause( 1579, [ 'is_a_theorem'( T ), ~( 'is_a_theorem'( or( not( or( not( 
% 1.17/1.57    or( not( X ), Y ) ), or( not( Z ), or( Z, Y ) ) ) ), T ) ) ) ] )
% 1.17/1.57  , 1, clause( 1, [ 'is_a_theorem'( or( not( or( not( or( not( X ), Y ) ), or( 
% 1.17/1.57    Z, or( T, U ) ) ) ), or( not( or( not( T ), X ) ), or( Z, or( U, X ) ) )
% 1.17/1.57     ) ) ] )
% 1.17/1.57  , 0, substitution( 0, [ :=( X, Y ), :=( Y, Z ), :=( Z, X ), :=( T, or( not( 
% 1.17/1.57    or( not( X ), Y ) ), or( not( X ), or( Z, Y ) ) ) )] ), substitution( 1
% 1.17/1.57    , [ :=( X, Y ), :=( Y, Z ), :=( Z, not( X ) ), :=( T, X ), :=( U, Z )] )
% 1.17/1.57    ).
% 1.17/1.57  
% 1.17/1.57  
% 1.17/1.57  subsumption(
% 1.17/1.57  clause( 2075, [ 'is_a_theorem'( or( not( or( not( X ), Y ) ), or( not( X )
% 1.17/1.57    , or( Z, Y ) ) ) ) ] )
% 1.17/1.57  , clause( 10854, [ 'is_a_theorem'( or( not( or( not( X ), Y ) ), or( not( X
% 1.17/1.57     ), or( Z, Y ) ) ) ) ] )
% 1.17/1.57  , substitution( 0, [ :=( X, X ), :=( Y, Y ), :=( Z, Z )] ), 
% 1.17/1.57    permutation( 0, [ ==>( 0, 0 )] ) ).
% 1.17/1.57  
% 1.17/1.57  
% 1.17/1.57  resolution(
% 1.17/1.57  clause( 10856, [ ~( 'is_a_theorem'( or( not( or( not( or( not( X ), Y ) ), 
% 1.17/1.57    or( not( X ), or( Z, Y ) ) ) ), T ) ) ), 'is_a_theorem'( T ) ] )
% 1.17/1.57  , clause( 0, [ ~( 'is_a_theorem'( or( not( X ), Y ) ) ), 'is_a_theorem'( Y
% 1.17/1.57     ), ~( 'is_a_theorem'( X ) ) ] )
% 1.17/1.57  , 2, clause( 2075, [ 'is_a_theorem'( or( not( or( not( X ), Y ) ), or( not( 
% 1.17/1.57    X ), or( Z, Y ) ) ) ) ] )
% 1.17/1.57  , 0, substitution( 0, [ :=( X, or( not( or( not( X ), Y ) ), or( not( X ), 
% 1.17/1.57    or( Z, Y ) ) ) ), :=( Y, T )] ), substitution( 1, [ :=( X, X ), :=( Y, Y
% 1.17/1.57     ), :=( Z, Z )] )).
% 1.17/1.57  
% 1.17/1.57  
% 1.17/1.57  subsumption(
% 1.17/1.57  clause( 2083, [ 'is_a_theorem'( T ), ~( 'is_a_theorem'( or( not( or( not( 
% 1.17/1.57    or( not( X ), Y ) ), or( not( X ), or( Z, Y ) ) ) ), T ) ) ) ] )
% 1.17/1.57  , clause( 10856, [ ~( 'is_a_theorem'( or( not( or( not( or( not( X ), Y ) )
% 1.17/1.57    , or( not( X ), or( Z, Y ) ) ) ), T ) ) ), 'is_a_theorem'( T ) ] )
% 1.17/1.57  , substitution( 0, [ :=( X, X ), :=( Y, Y ), :=( Z, Z ), :=( T, T )] ), 
% 1.17/1.57    permutation( 0, [ ==>( 0, 1 ), ==>( 1, 0 )] ) ).
% 1.17/1.57  
% 1.17/1.57  
% 1.17/1.57  resolution(
% 1.17/1.57  clause( 10857, [ 'is_a_theorem'( or( X, or( not( or( Y, Z ) ), or( not( T )
% 1.17/1.57    , or( Y, Z ) ) ) ) ) ] )
% 1.17/1.57  , clause( 2083, [ 'is_a_theorem'( T ), ~( 'is_a_theorem'( or( not( or( not( 
% 1.17/1.57    or( not( X ), Y ) ), or( not( X ), or( Z, Y ) ) ) ), T ) ) ) ] )
% 1.17/1.57  , 1, clause( 1558, [ 'is_a_theorem'( or( not( or( not( X ), or( Y, Z ) ) )
% 1.17/1.57    , or( T, or( not( Z ), or( Y, Z ) ) ) ) ) ] )
% 1.17/1.57  , 0, substitution( 0, [ :=( X, T ), :=( Y, Z ), :=( Z, Y ), :=( T, or( X, 
% 1.17/1.57    or( not( or( Y, Z ) ), or( not( T ), or( Y, Z ) ) ) ) )] ), 
% 1.17/1.57    substitution( 1, [ :=( X, or( not( T ), Z ) ), :=( Y, not( T ) ), :=( Z, 
% 1.17/1.57    or( Y, Z ) ), :=( T, X )] )).
% 1.17/1.57  
% 1.17/1.57  
% 1.17/1.57  subsumption(
% 1.17/1.57  clause( 2457, [ 'is_a_theorem'( or( X, or( not( or( Y, Z ) ), or( not( T )
% 1.17/1.57    , or( Y, Z ) ) ) ) ) ] )
% 1.17/1.57  , clause( 10857, [ 'is_a_theorem'( or( X, or( not( or( Y, Z ) ), or( not( T
% 1.17/1.57     ), or( Y, Z ) ) ) ) ) ] )
% 1.17/1.57  , substitution( 0, [ :=( X, X ), :=( Y, Y ), :=( Z, Z ), :=( T, T )] ), 
% 1.17/1.57    permutation( 0, [ ==>( 0, 0 )] ) ).
% 1.17/1.57  
% 1.17/1.57  
% 1.17/1.57  resolution(
% 1.17/1.57  clause( 10858, [ 'is_a_theorem'( or( not( or( X, Y ) ), or( not( Z ), or( X
% 1.17/1.57    , Y ) ) ) ) ] )
% 1.17/1.57  , clause( 2083, [ 'is_a_theorem'( T ), ~( 'is_a_theorem'( or( not( or( not( 
% 1.17/1.57    or( not( X ), Y ) ), or( not( X ), or( Z, Y ) ) ) ), T ) ) ) ] )
% 1.17/1.57  , 1, clause( 2457, [ 'is_a_theorem'( or( X, or( not( or( Y, Z ) ), or( not( 
% 1.17/1.57    T ), or( Y, Z ) ) ) ) ) ] )
% 1.17/1.57  , 0, substitution( 0, [ :=( X, T ), :=( Y, U ), :=( Z, W ), :=( T, or( not( 
% 1.17/1.57    or( X, Y ) ), or( not( Z ), or( X, Y ) ) ) )] ), substitution( 1, [ :=( X
% 1.17/1.57    , not( or( not( or( not( T ), U ) ), or( not( T ), or( W, U ) ) ) ) ), 
% 1.17/1.57    :=( Y, X ), :=( Z, Y ), :=( T, Z )] )).
% 1.17/1.57  
% 1.17/1.57  
% 1.17/1.57  subsumption(
% 1.17/1.57  clause( 2520, [ 'is_a_theorem'( or( not( or( X, Y ) ), or( not( Z ), or( X
% 1.17/1.57    , Y ) ) ) ) ] )
% 1.17/1.57  , clause( 10858, [ 'is_a_theorem'( or( not( or( X, Y ) ), or( not( Z ), or( 
% 1.17/1.57    X, Y ) ) ) ) ] )
% 1.17/1.57  , substitution( 0, [ :=( X, X ), :=( Y, Y ), :=( Z, Z )] ), 
% 1.17/1.57    permutation( 0, [ ==>( 0, 0 )] ) ).
% 1.17/1.57  
% 1.17/1.57  
% 1.17/1.57  resolution(
% 1.17/1.57  clause( 10860, [ ~( 'is_a_theorem'( or( not( or( not( or( X, Y ) ), or( not( 
% 1.17/1.57    Z ), or( X, Y ) ) ) ), T ) ) ), 'is_a_theorem'( T ) ] )
% 1.17/1.57  , clause( 0, [ ~( 'is_a_theorem'( or( not( X ), Y ) ) ), 'is_a_theorem'( Y
% 1.17/1.57     ), ~( 'is_a_theorem'( X ) ) ] )
% 1.17/1.57  , 2, clause( 2520, [ 'is_a_theorem'( or( not( or( X, Y ) ), or( not( Z ), 
% 1.17/1.57    or( X, Y ) ) ) ) ] )
% 1.17/1.57  , 0, substitution( 0, [ :=( X, or( not( or( X, Y ) ), or( not( Z ), or( X, 
% 1.17/1.57    Y ) ) ) ), :=( Y, T )] ), substitution( 1, [ :=( X, X ), :=( Y, Y ), :=( 
% 1.17/1.57    Z, Z )] )).
% 1.17/1.57  
% 1.17/1.57  
% 1.17/1.57  subsumption(
% 1.17/1.57  clause( 2524, [ 'is_a_theorem'( T ), ~( 'is_a_theorem'( or( not( or( not( 
% 1.17/1.57    or( X, Y ) ), or( not( Z ), or( X, Y ) ) ) ), T ) ) ) ] )
% 1.17/1.57  , clause( 10860, [ ~( 'is_a_theorem'( or( not( or( not( or( X, Y ) ), or( 
% 1.17/1.57    not( Z ), or( X, Y ) ) ) ), T ) ) ), 'is_a_theorem'( T ) ] )
% 1.17/1.57  , substitution( 0, [ :=( X, X ), :=( Y, Y ), :=( Z, Z ), :=( T, T )] ), 
% 1.17/1.57    permutation( 0, [ ==>( 0, 1 ), ==>( 1, 0 )] ) ).
% 1.17/1.57  
% 1.17/1.57  
% 1.17/1.57  resolution(
% 1.17/1.57  clause( 10861, [ 'is_a_theorem'( or( not( or( not( not( X ) ), X ) ), or( 
% 1.17/1.57    not( Y ), or( Z, X ) ) ) ) ] )
% 1.17/1.57  , clause( 2524, [ 'is_a_theorem'( T ), ~( 'is_a_theorem'( or( not( or( not( 
% 1.17/1.57    or( X, Y ) ), or( not( Z ), or( X, Y ) ) ) ), T ) ) ) ] )
% 1.17/1.57  , 1, clause( 1, [ 'is_a_theorem'( or( not( or( not( or( not( X ), Y ) ), or( 
% 1.17/1.57    Z, or( T, U ) ) ) ), or( not( or( not( T ), X ) ), or( Z, or( U, X ) ) )
% 1.17/1.57     ) ) ] )
% 1.17/1.57  , 0, substitution( 0, [ :=( X, not( X ) ), :=( Y, Z ), :=( Z, Y ), :=( T, 
% 1.17/1.57    or( not( or( not( not( X ) ), X ) ), or( not( Y ), or( Z, X ) ) ) )] ), 
% 1.17/1.57    substitution( 1, [ :=( X, X ), :=( Y, Z ), :=( Z, not( Y ) ), :=( T, not( 
% 1.17/1.57    X ) ), :=( U, Z )] )).
% 1.17/1.57  
% 1.17/1.57  
% 1.17/1.57  subsumption(
% 1.17/1.57  clause( 2622, [ 'is_a_theorem'( or( not( or( not( not( X ) ), X ) ), or( 
% 1.17/1.57    not( Y ), or( Z, X ) ) ) ) ] )
% 1.17/1.57  , clause( 10861, [ 'is_a_theorem'( or( not( or( not( not( X ) ), X ) ), or( 
% 1.17/1.57    not( Y ), or( Z, X ) ) ) ) ] )
% 1.17/1.57  , substitution( 0, [ :=( X, X ), :=( Y, Y ), :=( Z, Z )] ), 
% 1.17/1.57    permutation( 0, [ ==>( 0, 0 )] ) ).
% 1.17/1.57  
% 1.17/1.57  
% 1.17/1.57  resolution(
% 1.17/1.57  clause( 10863, [ ~( 'is_a_theorem'( or( not( or( not( or( not( not( X ) ), 
% 1.17/1.57    X ) ), or( not( Y ), or( Z, X ) ) ) ), T ) ) ), 'is_a_theorem'( T ) ] )
% 1.17/1.57  , clause( 0, [ ~( 'is_a_theorem'( or( not( X ), Y ) ) ), 'is_a_theorem'( Y
% 1.17/1.57     ), ~( 'is_a_theorem'( X ) ) ] )
% 1.17/1.57  , 2, clause( 2622, [ 'is_a_theorem'( or( not( or( not( not( X ) ), X ) ), 
% 1.17/1.57    or( not( Y ), or( Z, X ) ) ) ) ] )
% 1.17/1.57  , 0, substitution( 0, [ :=( X, or( not( or( not( not( X ) ), X ) ), or( not( 
% 1.17/1.57    Y ), or( Z, X ) ) ) ), :=( Y, T )] ), substitution( 1, [ :=( X, X ), :=( 
% 1.17/1.57    Y, Y ), :=( Z, Z )] )).
% 1.17/1.57  
% 1.17/1.57  
% 1.17/1.57  subsumption(
% 1.17/1.57  clause( 2647, [ 'is_a_theorem'( T ), ~( 'is_a_theorem'( or( not( or( not( 
% 1.17/1.57    or( not( not( X ) ), X ) ), or( not( Y ), or( Z, X ) ) ) ), T ) ) ) ] )
% 1.17/1.57  , clause( 10863, [ ~( 'is_a_theorem'( or( not( or( not( or( not( not( X ) )
% 1.17/1.57    , X ) ), or( not( Y ), or( Z, X ) ) ) ), T ) ) ), 'is_a_theorem'( T ) ]
% 1.17/1.57     )
% 1.17/1.57  , substitution( 0, [ :=( X, X ), :=( Y, Y ), :=( Z, Z ), :=( T, T )] ), 
% 1.17/1.57    permutation( 0, [ ==>( 0, 1 ), ==>( 1, 0 )] ) ).
% 1.17/1.57  
% 1.17/1.57  
% 1.17/1.57  resolution(
% 1.17/1.57  clause( 10864, [ 'is_a_theorem'( or( X, or( Y, or( not( or( not( Z ), T ) )
% 1.17/1.57    , or( or( not( T ), U ), T ) ) ) ) ) ] )
% 1.17/1.57  , clause( 2647, [ 'is_a_theorem'( T ), ~( 'is_a_theorem'( or( not( or( not( 
% 1.17/1.57    or( not( not( X ) ), X ) ), or( not( Y ), or( Z, X ) ) ) ), T ) ) ) ] )
% 1.17/1.57  , 1, clause( 257, [ 'is_a_theorem'( or( not( or( not( X ), or( not( or( not( 
% 1.17/1.57    Y ), Z ) ), or( or( not( Z ), T ), Z ) ) ) ), or( U, or( W, or( not( or( 
% 1.17/1.57    not( Y ), Z ) ), or( or( not( Z ), T ), Z ) ) ) ) ) ) ] )
% 1.17/1.57  , 0, substitution( 0, [ :=( X, T ), :=( Y, or( not( Z ), T ) ), :=( Z, or( 
% 1.17/1.57    not( T ), U ) ), :=( T, or( X, or( Y, or( not( or( not( Z ), T ) ), or( 
% 1.17/1.57    or( not( T ), U ), T ) ) ) ) )] ), substitution( 1, [ :=( X, or( not( not( 
% 1.17/1.57    T ) ), T ) ), :=( Y, Z ), :=( Z, T ), :=( T, U ), :=( U, X ), :=( W, Y )] )
% 1.17/1.57    ).
% 1.17/1.57  
% 1.17/1.57  
% 1.17/1.57  subsumption(
% 1.17/1.57  clause( 3596, [ 'is_a_theorem'( or( X, or( Y, or( not( or( not( Z ), T ) )
% 1.17/1.57    , or( or( not( T ), U ), T ) ) ) ) ) ] )
% 1.17/1.57  , clause( 10864, [ 'is_a_theorem'( or( X, or( Y, or( not( or( not( Z ), T )
% 1.17/1.57     ), or( or( not( T ), U ), T ) ) ) ) ) ] )
% 1.17/1.57  , substitution( 0, [ :=( X, X ), :=( Y, Y ), :=( Z, Z ), :=( T, T ), :=( U
% 1.17/1.57    , U )] ), permutation( 0, [ ==>( 0, 0 )] ) ).
% 1.17/1.57  
% 1.17/1.57  
% 1.17/1.57  resolution(
% 1.17/1.57  clause( 10865, [ 'is_a_theorem'( or( X, or( not( or( not( Y ), Z ) ), or( 
% 1.17/1.57    or( not( Z ), T ), Z ) ) ) ) ] )
% 1.17/1.57  , clause( 1687, [ 'is_a_theorem'( U ), ~( 'is_a_theorem'( or( not( or( not( 
% 1.17/1.57    X ), or( X, or( Y, or( or( not( Z ), T ), Z ) ) ) ) ), U ) ) ) ] )
% 1.17/1.57  , 1, clause( 3596, [ 'is_a_theorem'( or( X, or( Y, or( not( or( not( Z ), T
% 1.17/1.57     ) ), or( or( not( T ), U ), T ) ) ) ) ) ] )
% 1.17/1.57  , 0, substitution( 0, [ :=( X, U ), :=( Y, W ), :=( Z, V0 ), :=( T, V1 ), 
% 1.17/1.57    :=( U, or( X, or( not( or( not( Y ), Z ) ), or( or( not( Z ), T ), Z ) )
% 1.17/1.57     ) )] ), substitution( 1, [ :=( X, not( or( not( U ), or( U, or( W, or( 
% 1.17/1.57    or( not( V0 ), V1 ), V0 ) ) ) ) ) ), :=( Y, X ), :=( Z, Y ), :=( T, Z ), 
% 1.17/1.57    :=( U, T )] )).
% 1.17/1.57  
% 1.17/1.57  
% 1.17/1.57  subsumption(
% 1.17/1.57  clause( 3598, [ 'is_a_theorem'( or( X, or( not( or( not( Y ), Z ) ), or( or( 
% 1.17/1.57    not( Z ), T ), Z ) ) ) ) ] )
% 1.17/1.57  , clause( 10865, [ 'is_a_theorem'( or( X, or( not( or( not( Y ), Z ) ), or( 
% 1.17/1.57    or( not( Z ), T ), Z ) ) ) ) ] )
% 1.17/1.57  , substitution( 0, [ :=( X, X ), :=( Y, Y ), :=( Z, Z ), :=( T, T )] ), 
% 1.17/1.57    permutation( 0, [ ==>( 0, 0 )] ) ).
% 1.17/1.57  
% 1.17/1.57  
% 1.17/1.57  resolution(
% 1.17/1.57  clause( 10866, [ 'is_a_theorem'( or( not( or( not( X ), Y ) ), or( or( not( 
% 1.17/1.57    Y ), Z ), Y ) ) ) ] )
% 1.17/1.57  , clause( 1687, [ 'is_a_theorem'( U ), ~( 'is_a_theorem'( or( not( or( not( 
% 1.17/1.57    X ), or( X, or( Y, or( or( not( Z ), T ), Z ) ) ) ) ), U ) ) ) ] )
% 1.17/1.57  , 1, clause( 3598, [ 'is_a_theorem'( or( X, or( not( or( not( Y ), Z ) ), 
% 1.17/1.57    or( or( not( Z ), T ), Z ) ) ) ) ] )
% 1.17/1.57  , 0, substitution( 0, [ :=( X, T ), :=( Y, U ), :=( Z, W ), :=( T, V0 ), 
% 1.17/1.57    :=( U, or( not( or( not( X ), Y ) ), or( or( not( Y ), Z ), Y ) ) )] ), 
% 1.17/1.57    substitution( 1, [ :=( X, not( or( not( T ), or( T, or( U, or( or( not( W
% 1.17/1.57     ), V0 ), W ) ) ) ) ) ), :=( Y, X ), :=( Z, Y ), :=( T, Z )] )).
% 1.17/1.57  
% 1.17/1.57  
% 1.17/1.57  subsumption(
% 1.17/1.57  clause( 3600, [ 'is_a_theorem'( or( not( or( not( X ), Y ) ), or( or( not( 
% 1.17/1.57    Y ), Z ), Y ) ) ) ] )
% 1.17/1.57  , clause( 10866, [ 'is_a_theorem'( or( not( or( not( X ), Y ) ), or( or( 
% 1.17/1.57    not( Y ), Z ), Y ) ) ) ] )
% 1.17/1.57  , substitution( 0, [ :=( X, X ), :=( Y, Y ), :=( Z, Z )] ), 
% 1.17/1.57    permutation( 0, [ ==>( 0, 0 )] ) ).
% 1.17/1.57  
% 1.17/1.57  
% 1.17/1.57  resolution(
% 1.17/1.57  clause( 10868, [ ~( 'is_a_theorem'( or( not( or( not( or( not( X ), Y ) ), 
% 1.17/1.57    or( or( not( Y ), Z ), Y ) ) ), T ) ) ), 'is_a_theorem'( T ) ] )
% 1.17/1.57  , clause( 0, [ ~( 'is_a_theorem'( or( not( X ), Y ) ) ), 'is_a_theorem'( Y
% 1.17/1.57     ), ~( 'is_a_theorem'( X ) ) ] )
% 1.17/1.57  , 2, clause( 3600, [ 'is_a_theorem'( or( not( or( not( X ), Y ) ), or( or( 
% 1.17/1.57    not( Y ), Z ), Y ) ) ) ] )
% 1.17/1.57  , 0, substitution( 0, [ :=( X, or( not( or( not( X ), Y ) ), or( or( not( Y
% 1.17/1.57     ), Z ), Y ) ) ), :=( Y, T )] ), substitution( 1, [ :=( X, X ), :=( Y, Y
% 1.17/1.57     ), :=( Z, Z )] )).
% 1.17/1.57  
% 1.17/1.57  
% 1.17/1.57  subsumption(
% 1.17/1.57  clause( 3609, [ 'is_a_theorem'( T ), ~( 'is_a_theorem'( or( not( or( not( 
% 1.17/1.57    or( not( X ), Y ) ), or( or( not( Y ), Z ), Y ) ) ), T ) ) ) ] )
% 1.17/1.57  , clause( 10868, [ ~( 'is_a_theorem'( or( not( or( not( or( not( X ), Y ) )
% 1.17/1.57    , or( or( not( Y ), Z ), Y ) ) ), T ) ) ), 'is_a_theorem'( T ) ] )
% 1.17/1.57  , substitution( 0, [ :=( X, X ), :=( Y, Y ), :=( Z, Z ), :=( T, T )] ), 
% 1.17/1.57    permutation( 0, [ ==>( 0, 1 ), ==>( 1, 0 )] ) ).
% 1.17/1.57  
% 1.17/1.57  
% 1.17/1.57  resolution(
% 1.17/1.57  clause( 10869, [ 'is_a_theorem'( or( not( or( not( X ), Y ) ), or( Z, or( 
% 1.17/1.57    or( not( Y ), T ), Y ) ) ) ) ] )
% 1.17/1.57  , clause( 3609, [ 'is_a_theorem'( T ), ~( 'is_a_theorem'( or( not( or( not( 
% 1.17/1.57    or( not( X ), Y ) ), or( or( not( Y ), Z ), Y ) ) ), T ) ) ) ] )
% 1.17/1.57  , 1, clause( 2075, [ 'is_a_theorem'( or( not( or( not( X ), Y ) ), or( not( 
% 1.17/1.57    X ), or( Z, Y ) ) ) ) ] )
% 1.17/1.57  , 0, substitution( 0, [ :=( X, X ), :=( Y, Y ), :=( Z, T ), :=( T, or( not( 
% 1.17/1.57    or( not( X ), Y ) ), or( Z, or( or( not( Y ), T ), Y ) ) ) )] ), 
% 1.17/1.57    substitution( 1, [ :=( X, or( not( X ), Y ) ), :=( Y, or( or( not( Y ), T
% 1.17/1.57     ), Y ) ), :=( Z, Z )] )).
% 1.17/1.57  
% 1.17/1.57  
% 1.17/1.57  subsumption(
% 1.17/1.57  clause( 3633, [ 'is_a_theorem'( or( not( or( not( X ), Y ) ), or( Z, or( or( 
% 1.17/1.57    not( Y ), T ), Y ) ) ) ) ] )
% 1.17/1.57  , clause( 10869, [ 'is_a_theorem'( or( not( or( not( X ), Y ) ), or( Z, or( 
% 1.17/1.57    or( not( Y ), T ), Y ) ) ) ) ] )
% 1.17/1.57  , substitution( 0, [ :=( X, X ), :=( Y, Y ), :=( Z, Z ), :=( T, T )] ), 
% 1.17/1.57    permutation( 0, [ ==>( 0, 0 )] ) ).
% 1.17/1.57  
% 1.17/1.57  
% 1.17/1.57  resolution(
% 1.17/1.57  clause( 10871, [ ~( 'is_a_theorem'( or( not( or( not( or( not( X ), Y ) ), 
% 1.17/1.57    or( Z, or( or( not( Y ), T ), Y ) ) ) ), U ) ) ), 'is_a_theorem'( U ) ]
% 1.17/1.57     )
% 1.17/1.57  , clause( 0, [ ~( 'is_a_theorem'( or( not( X ), Y ) ) ), 'is_a_theorem'( Y
% 1.17/1.57     ), ~( 'is_a_theorem'( X ) ) ] )
% 1.17/1.57  , 2, clause( 3633, [ 'is_a_theorem'( or( not( or( not( X ), Y ) ), or( Z, 
% 1.17/1.57    or( or( not( Y ), T ), Y ) ) ) ) ] )
% 1.17/1.57  , 0, substitution( 0, [ :=( X, or( not( or( not( X ), Y ) ), or( Z, or( or( 
% 1.17/1.57    not( Y ), T ), Y ) ) ) ), :=( Y, U )] ), substitution( 1, [ :=( X, X ), 
% 1.17/1.57    :=( Y, Y ), :=( Z, Z ), :=( T, T )] )).
% 1.17/1.57  
% 1.17/1.57  
% 1.17/1.57  subsumption(
% 1.17/1.57  clause( 3648, [ 'is_a_theorem'( U ), ~( 'is_a_theorem'( or( not( or( not( 
% 1.17/1.57    or( not( X ), Y ) ), or( Z, or( or( not( Y ), T ), Y ) ) ) ), U ) ) ) ]
% 1.17/1.57     )
% 1.17/1.57  , clause( 10871, [ ~( 'is_a_theorem'( or( not( or( not( or( not( X ), Y ) )
% 1.17/1.57    , or( Z, or( or( not( Y ), T ), Y ) ) ) ), U ) ) ), 'is_a_theorem'( U ) ]
% 1.17/1.57     )
% 1.17/1.57  , substitution( 0, [ :=( X, X ), :=( Y, Y ), :=( Z, Z ), :=( T, T ), :=( U
% 1.17/1.57    , U )] ), permutation( 0, [ ==>( 0, 1 ), ==>( 1, 0 )] ) ).
% 1.17/1.57  
% 1.17/1.57  
% 1.17/1.57  resolution(
% 1.17/1.57  clause( 10872, [ 'is_a_theorem'( or( not( or( not( or( not( X ), Y ) ), Z )
% 1.17/1.57     ), or( T, or( X, Z ) ) ) ) ] )
% 1.17/1.57  , clause( 3648, [ 'is_a_theorem'( U ), ~( 'is_a_theorem'( or( not( or( not( 
% 1.17/1.57    or( not( X ), Y ) ), or( Z, or( or( not( Y ), T ), Y ) ) ) ), U ) ) ) ]
% 1.17/1.57     )
% 1.17/1.57  , 1, clause( 1, [ 'is_a_theorem'( or( not( or( not( or( not( X ), Y ) ), or( 
% 1.17/1.57    Z, or( T, U ) ) ) ), or( not( or( not( T ), X ) ), or( Z, or( U, X ) ) )
% 1.17/1.57     ) ) ] )
% 1.17/1.57  , 0, substitution( 0, [ :=( X, Z ), :=( Y, X ), :=( Z, T ), :=( T, Y ), 
% 1.17/1.57    :=( U, or( not( or( not( or( not( X ), Y ) ), Z ) ), or( T, or( X, Z ) )
% 1.17/1.57     ) )] ), substitution( 1, [ :=( X, Z ), :=( Y, X ), :=( Z, T ), :=( T, or( 
% 1.17/1.57    not( X ), Y ) ), :=( U, X )] )).
% 1.17/1.57  
% 1.17/1.57  
% 1.17/1.57  subsumption(
% 1.17/1.57  clause( 10525, [ 'is_a_theorem'( or( not( or( not( or( not( X ), Y ) ), Z )
% 1.17/1.57     ), or( T, or( X, Z ) ) ) ) ] )
% 1.17/1.57  , clause( 10872, [ 'is_a_theorem'( or( not( or( not( or( not( X ), Y ) ), Z
% 1.17/1.57     ) ), or( T, or( X, Z ) ) ) ) ] )
% 1.17/1.57  , substitution( 0, [ :=( X, X ), :=( Y, Y ), :=( Z, Z ), :=( T, T )] ), 
% 1.17/1.57    permutation( 0, [ ==>( 0, 0 )] ) ).
% 1.17/1.57  
% 1.17/1.57  
% 1.17/1.57  resolution(
% 1.17/1.57  clause( 10873, [ 'is_a_theorem'( or( X, or( Y, or( not( Z ), or( T, Z ) ) )
% 1.17/1.57     ) ) ] )
% 1.17/1.57  , clause( 1395, [ 'is_a_theorem'( T ), ~( 'is_a_theorem'( or( not( or( not( 
% 1.17/1.57    or( not( X ), Y ) ), or( not( Y ), or( Z, Y ) ) ) ), T ) ) ) ] )
% 1.17/1.57  , 1, clause( 10525, [ 'is_a_theorem'( or( not( or( not( or( not( X ), Y ) )
% 1.17/1.57    , Z ) ), or( T, or( X, Z ) ) ) ) ] )
% 1.17/1.57  , 0, substitution( 0, [ :=( X, Y ), :=( Y, Z ), :=( Z, T ), :=( T, or( X, 
% 1.17/1.57    or( Y, or( not( Z ), or( T, Z ) ) ) ) )] ), substitution( 1, [ :=( X, Y )
% 1.17/1.57    , :=( Y, Z ), :=( Z, or( not( Z ), or( T, Z ) ) ), :=( T, X )] )).
% 1.17/1.57  
% 1.17/1.57  
% 1.17/1.57  subsumption(
% 1.17/1.57  clause( 10563, [ 'is_a_theorem'( or( X, or( Y, or( not( Z ), or( T, Z ) ) )
% 1.17/1.57     ) ) ] )
% 1.17/1.57  , clause( 10873, [ 'is_a_theorem'( or( X, or( Y, or( not( Z ), or( T, Z ) )
% 1.17/1.57     ) ) ) ] )
% 1.17/1.57  , substitution( 0, [ :=( X, X ), :=( Y, Y ), :=( Z, Z ), :=( T, T )] ), 
% 1.17/1.57    permutation( 0, [ ==>( 0, 0 )] ) ).
% 1.17/1.57  
% 1.17/1.57  
% 1.17/1.57  resolution(
% 1.17/1.57  clause( 10874, [ 'is_a_theorem'( or( X, or( not( Y ), or( Z, Y ) ) ) ) ] )
% 1.17/1.57  , clause( 3648, [ 'is_a_theorem'( U ), ~( 'is_a_theorem'( or( not( or( not( 
% 1.17/1.57    or( not( X ), Y ) ), or( Z, or( or( not( Y ), T ), Y ) ) ) ), U ) ) ) ]
% 1.17/1.57     )
% 1.17/1.57  , 1, clause( 10563, [ 'is_a_theorem'( or( X, or( Y, or( not( Z ), or( T, Z
% 1.17/1.57     ) ) ) ) ) ] )
% 1.17/1.57  , 0, substitution( 0, [ :=( X, T ), :=( Y, U ), :=( Z, W ), :=( T, V0 ), 
% 1.17/1.57    :=( U, or( X, or( not( Y ), or( Z, Y ) ) ) )] ), substitution( 1, [ :=( X
% 1.17/1.57    , not( or( not( or( not( T ), U ) ), or( W, or( or( not( U ), V0 ), U ) )
% 1.17/1.57     ) ) ), :=( Y, X ), :=( Z, Y ), :=( T, Z )] )).
% 1.17/1.57  
% 1.17/1.57  
% 1.17/1.57  subsumption(
% 1.17/1.57  clause( 10778, [ 'is_a_theorem'( or( X, or( not( Y ), or( Z, Y ) ) ) ) ] )
% 1.17/1.57  , clause( 10874, [ 'is_a_theorem'( or( X, or( not( Y ), or( Z, Y ) ) ) ) ]
% 1.17/1.57     )
% 1.17/1.57  , substitution( 0, [ :=( X, X ), :=( Y, Y ), :=( Z, Z )] ), 
% 1.17/1.57    permutation( 0, [ ==>( 0, 0 )] ) ).
% 1.17/1.57  
% 1.17/1.57  
% 1.17/1.57  resolution(
% 1.17/1.57  clause( 10875, [ 'is_a_theorem'( or( not( X ), or( Y, X ) ) ) ] )
% 1.17/1.57  , clause( 3648, [ 'is_a_theorem'( U ), ~( 'is_a_theorem'( or( not( or( not( 
% 1.17/1.57    or( not( X ), Y ) ), or( Z, or( or( not( Y ), T ), Y ) ) ) ), U ) ) ) ]
% 1.17/1.57     )
% 1.17/1.57  , 1, clause( 10778, [ 'is_a_theorem'( or( X, or( not( Y ), or( Z, Y ) ) ) )
% 1.17/1.57     ] )
% 1.17/1.57  , 0, substitution( 0, [ :=( X, Z ), :=( Y, T ), :=( Z, U ), :=( T, W ), 
% 1.17/1.57    :=( U, or( not( X ), or( Y, X ) ) )] ), substitution( 1, [ :=( X, not( or( 
% 1.17/1.57    not( or( not( Z ), T ) ), or( U, or( or( not( T ), W ), T ) ) ) ) ), :=( 
% 1.17/1.57    Y, X ), :=( Z, Y )] )).
% 1.17/1.57  
% 1.17/1.57  
% 1.17/1.57  subsumption(
% 1.17/1.57  clause( 10780, [ 'is_a_theorem'( or( not( X ), or( Y, X ) ) ) ] )
% 1.17/1.57  , clause( 10875, [ 'is_a_theorem'( or( not( X ), or( Y, X ) ) ) ] )
% 1.17/1.57  , substitution( 0, [ :=( X, X ), :=( Y, Y )] ), permutation( 0, [ ==>( 0, 0
% 1.17/1.57     )] ) ).
% 1.17/1.57  
% 1.17/1.57  
% 1.17/1.57  resolution(
% 1.17/1.57  clause( 10876, [] )
% 1.17/1.57  , clause( 2, [ ~( 'is_a_theorem'( or( not( a ), or( b, a ) ) ) ) ] )
% 1.17/1.57  , 0, clause( 10780, [ 'is_a_theorem'( or( not( X ), or( Y, X ) ) ) ] )
% 1.17/1.57  , 0, substitution( 0, [] ), substitution( 1, [ :=( X, a ), :=( Y, b )] )
% 1.17/1.57    ).
% 1.17/1.57  
% 1.17/1.57  
% 1.17/1.57  subsumption(
% 1.17/1.57  clause( 10783, [] )
% 1.17/1.57  , clause( 10876, [] )
% 1.17/1.57  , substitution( 0, [] ), permutation( 0, [] ) ).
% 1.17/1.57  
% 1.17/1.57  
% 1.17/1.57  end.
% 1.17/1.57  
% 1.17/1.57  % ABCDEFGHIJKLMNOPQRSTUVWXYZ
% 1.17/1.57  
% 1.17/1.57  Memory use:
% 1.17/1.57  
% 1.17/1.57  space for terms:        306263
% 1.17/1.57  space for clauses:      1205632
% 1.17/1.57  
% 1.17/1.57  
% 1.17/1.57  clauses generated:      97328
% 1.17/1.57  clauses kept:           10784
% 1.17/1.57  clauses selected:       1780
% 1.17/1.57  clauses deleted:        1555
% 1.17/1.57  clauses inuse deleted:  787
% 1.17/1.57  
% 1.17/1.57  subsentry:          90657
% 1.17/1.57  literals s-matched: 88099
% 1.17/1.57  literals matched:   88099
% 1.17/1.57  full subsumption:   0
% 1.17/1.57  
% 1.17/1.57  checksum:           -498394473
% 1.17/1.57  
% 1.17/1.57  
% 1.17/1.57  Bliksem ended
%------------------------------------------------------------------------------