TSTP Solution File: SET118-6 by Bliksem---1.12

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : Bliksem---1.12
% Problem  : SET118-6 : TPTP v8.1.0. Bugfixed v2.1.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : bliksem %s

% Computer : n028.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 : Mon Jul 18 22:47:20 EDT 2022

% Result   : Unsatisfiable 0.43s 1.07s
% Output   : Refutation 0.43s
% Verified : 
% SZS Type : -

% Comments : 
%------------------------------------------------------------------------------
%----WARNING: Could not form TPTP format derivation
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.12  % Problem  : SET118-6 : TPTP v8.1.0. Bugfixed v2.1.0.
% 0.13/0.12  % Command  : bliksem %s
% 0.13/0.33  % Computer : n028.cluster.edu
% 0.13/0.33  % Model    : x86_64 x86_64
% 0.13/0.33  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.13/0.33  % Memory   : 8042.1875MB
% 0.13/0.33  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.13/0.33  % CPULimit : 300
% 0.13/0.33  % DateTime : Sun Jul 10 15:12:12 EDT 2022
% 0.13/0.33  % CPUTime  : 
% 0.43/1.07  *** allocated 10000 integers for termspace/termends
% 0.43/1.07  *** allocated 10000 integers for clauses
% 0.43/1.07  *** allocated 10000 integers for justifications
% 0.43/1.07  Bliksem 1.12
% 0.43/1.07  
% 0.43/1.07  
% 0.43/1.07  Automatic Strategy Selection
% 0.43/1.07  
% 0.43/1.07  Clauses:
% 0.43/1.07  [
% 0.43/1.07     [ ~( subclass( X, Y ) ), ~( member( Z, X ) ), member( Z, Y ) ],
% 0.43/1.07     [ member( 'not_subclass_element'( X, Y ), X ), subclass( X, Y ) ],
% 0.43/1.07     [ ~( member( 'not_subclass_element'( X, Y ), Y ) ), subclass( X, Y ) ]
% 0.43/1.07    ,
% 0.43/1.07     [ subclass( X, 'universal_class' ) ],
% 0.43/1.07     [ ~( =( X, Y ) ), subclass( X, Y ) ],
% 0.43/1.07     [ ~( =( X, Y ) ), subclass( Y, X ) ],
% 0.43/1.07     [ ~( subclass( X, Y ) ), ~( subclass( Y, X ) ), =( X, Y ) ],
% 0.43/1.07     [ ~( member( X, 'unordered_pair'( Y, Z ) ) ), =( X, Y ), =( X, Z ) ]
% 0.43/1.07    ,
% 0.43/1.07     [ ~( member( X, 'universal_class' ) ), member( X, 'unordered_pair'( X, Y
% 0.43/1.07     ) ) ],
% 0.43/1.07     [ ~( member( X, 'universal_class' ) ), member( X, 'unordered_pair'( Y, X
% 0.43/1.07     ) ) ],
% 0.43/1.07     [ member( 'unordered_pair'( X, Y ), 'universal_class' ) ],
% 0.43/1.07     [ =( 'unordered_pair'( X, X ), singleton( X ) ) ],
% 0.43/1.07     [ =( 'unordered_pair'( singleton( X ), 'unordered_pair'( X, singleton( Y
% 0.43/1.07     ) ) ), 'ordered_pair'( X, Y ) ) ],
% 0.43/1.07     [ ~( member( 'ordered_pair'( X, Y ), 'cross_product'( Z, T ) ) ), member( 
% 0.43/1.07    X, Z ) ],
% 0.43/1.07     [ ~( member( 'ordered_pair'( X, Y ), 'cross_product'( Z, T ) ) ), member( 
% 0.43/1.07    Y, T ) ],
% 0.43/1.07     [ ~( member( X, Y ) ), ~( member( Z, T ) ), member( 'ordered_pair'( X, Z
% 0.43/1.07     ), 'cross_product'( Y, T ) ) ],
% 0.43/1.07     [ ~( member( X, 'cross_product'( Y, Z ) ) ), =( 'ordered_pair'( first( X
% 0.43/1.07     ), second( X ) ), X ) ],
% 0.43/1.07     [ subclass( 'element_relation', 'cross_product'( 'universal_class', 
% 0.43/1.07    'universal_class' ) ) ],
% 0.43/1.07     [ ~( member( 'ordered_pair'( X, Y ), 'element_relation' ) ), member( X, 
% 0.43/1.07    Y ) ],
% 0.43/1.07     [ ~( member( 'ordered_pair'( X, Y ), 'cross_product'( 'universal_class'
% 0.43/1.07    , 'universal_class' ) ) ), ~( member( X, Y ) ), member( 'ordered_pair'( X
% 0.43/1.07    , Y ), 'element_relation' ) ],
% 0.43/1.07     [ ~( member( X, intersection( Y, Z ) ) ), member( X, Y ) ],
% 0.43/1.07     [ ~( member( X, intersection( Y, Z ) ) ), member( X, Z ) ],
% 0.43/1.07     [ ~( member( X, Y ) ), ~( member( X, Z ) ), member( X, intersection( Y, 
% 0.43/1.07    Z ) ) ],
% 0.43/1.07     [ ~( member( X, complement( Y ) ) ), ~( member( X, Y ) ) ],
% 0.43/1.07     [ ~( member( X, 'universal_class' ) ), member( X, complement( Y ) ), 
% 0.43/1.07    member( X, Y ) ],
% 0.43/1.07     [ =( complement( intersection( complement( X ), complement( Y ) ) ), 
% 0.43/1.07    union( X, Y ) ) ],
% 0.43/1.07     [ =( intersection( complement( intersection( X, Y ) ), complement( 
% 0.43/1.07    intersection( complement( X ), complement( Y ) ) ) ), 
% 0.43/1.07    'symmetric_difference'( X, Y ) ) ],
% 0.43/1.07     [ =( intersection( X, 'cross_product'( Y, Z ) ), restrict( X, Y, Z ) ) ]
% 0.43/1.07    ,
% 0.43/1.07     [ =( intersection( 'cross_product'( X, Y ), Z ), restrict( Z, X, Y ) ) ]
% 0.43/1.07    ,
% 0.43/1.07     [ ~( =( restrict( X, singleton( Y ), 'universal_class' ), 'null_class' )
% 0.43/1.07     ), ~( member( Y, 'domain_of'( X ) ) ) ],
% 0.43/1.07     [ ~( member( X, 'universal_class' ) ), =( restrict( Y, singleton( X ), 
% 0.43/1.07    'universal_class' ), 'null_class' ), member( X, 'domain_of'( Y ) ) ],
% 0.43/1.07     [ subclass( rotate( X ), 'cross_product'( 'cross_product'( 
% 0.43/1.07    'universal_class', 'universal_class' ), 'universal_class' ) ) ],
% 0.43/1.07     [ ~( member( 'ordered_pair'( 'ordered_pair'( X, Y ), Z ), rotate( T ) )
% 0.43/1.07     ), member( 'ordered_pair'( 'ordered_pair'( Y, Z ), X ), T ) ],
% 0.43/1.07     [ ~( member( 'ordered_pair'( 'ordered_pair'( X, Y ), Z ), T ) ), ~( 
% 0.43/1.07    member( 'ordered_pair'( 'ordered_pair'( Z, X ), Y ), 'cross_product'( 
% 0.43/1.07    'cross_product'( 'universal_class', 'universal_class' ), 
% 0.43/1.07    'universal_class' ) ) ), member( 'ordered_pair'( 'ordered_pair'( Z, X ), 
% 0.43/1.07    Y ), rotate( T ) ) ],
% 0.43/1.07     [ subclass( flip( X ), 'cross_product'( 'cross_product'( 
% 0.43/1.07    'universal_class', 'universal_class' ), 'universal_class' ) ) ],
% 0.43/1.07     [ ~( member( 'ordered_pair'( 'ordered_pair'( X, Y ), Z ), flip( T ) ) )
% 0.43/1.07    , member( 'ordered_pair'( 'ordered_pair'( Y, X ), Z ), T ) ],
% 0.43/1.07     [ ~( member( 'ordered_pair'( 'ordered_pair'( X, Y ), Z ), T ) ), ~( 
% 0.43/1.07    member( 'ordered_pair'( 'ordered_pair'( Y, X ), Z ), 'cross_product'( 
% 0.43/1.07    'cross_product'( 'universal_class', 'universal_class' ), 
% 0.43/1.07    'universal_class' ) ) ), member( 'ordered_pair'( 'ordered_pair'( Y, X ), 
% 0.43/1.07    Z ), flip( T ) ) ],
% 0.43/1.07     [ =( 'domain_of'( flip( 'cross_product'( X, 'universal_class' ) ) ), 
% 0.43/1.07    inverse( X ) ) ],
% 0.43/1.07     [ =( 'domain_of'( inverse( X ) ), 'range_of'( X ) ) ],
% 0.43/1.07     [ =( first( 'not_subclass_element'( restrict( X, Y, singleton( Z ) ), 
% 0.43/1.07    'null_class' ) ), domain( X, Y, Z ) ) ],
% 0.43/1.07     [ =( second( 'not_subclass_element'( restrict( X, singleton( Y ), Z ), 
% 0.43/1.07    'null_class' ) ), range( X, Y, Z ) ) ],
% 0.43/1.07     [ =( 'range_of'( restrict( X, Y, 'universal_class' ) ), image( X, Y ) )
% 0.43/1.07     ],
% 0.43/1.07     [ =( union( X, singleton( X ) ), successor( X ) ) ],
% 0.43/1.07     [ subclass( 'successor_relation', 'cross_product'( 'universal_class', 
% 0.43/1.07    'universal_class' ) ) ],
% 0.43/1.07     [ ~( member( 'ordered_pair'( X, Y ), 'successor_relation' ) ), =( 
% 0.43/1.07    successor( X ), Y ) ],
% 0.43/1.07     [ ~( =( successor( X ), Y ) ), ~( member( 'ordered_pair'( X, Y ), 
% 0.43/1.07    'cross_product'( 'universal_class', 'universal_class' ) ) ), member( 
% 0.43/1.07    'ordered_pair'( X, Y ), 'successor_relation' ) ],
% 0.43/1.07     [ ~( inductive( X ) ), member( 'null_class', X ) ],
% 0.43/1.07     [ ~( inductive( X ) ), subclass( image( 'successor_relation', X ), X ) ]
% 0.43/1.07    ,
% 0.43/1.07     [ ~( member( 'null_class', X ) ), ~( subclass( image( 
% 0.43/1.07    'successor_relation', X ), X ) ), inductive( X ) ],
% 0.43/1.07     [ inductive( omega ) ],
% 0.43/1.07     [ ~( inductive( X ) ), subclass( omega, X ) ],
% 0.43/1.07     [ member( omega, 'universal_class' ) ],
% 0.43/1.07     [ =( 'domain_of'( restrict( 'element_relation', 'universal_class', X ) )
% 0.43/1.07    , 'sum_class'( X ) ) ],
% 0.43/1.07     [ ~( member( X, 'universal_class' ) ), member( 'sum_class'( X ), 
% 0.43/1.07    'universal_class' ) ],
% 0.43/1.07     [ =( complement( image( 'element_relation', complement( X ) ) ), 
% 0.43/1.07    'power_class'( X ) ) ],
% 0.43/1.07     [ ~( member( X, 'universal_class' ) ), member( 'power_class'( X ), 
% 0.43/1.07    'universal_class' ) ],
% 0.43/1.07     [ subclass( compose( X, Y ), 'cross_product'( 'universal_class', 
% 0.43/1.07    'universal_class' ) ) ],
% 0.43/1.07     [ ~( member( 'ordered_pair'( X, Y ), compose( Z, T ) ) ), member( Y, 
% 0.43/1.07    image( Z, image( T, singleton( X ) ) ) ) ],
% 0.43/1.07     [ ~( member( X, image( Y, image( Z, singleton( T ) ) ) ) ), ~( member( 
% 0.43/1.07    'ordered_pair'( T, X ), 'cross_product'( 'universal_class', 
% 0.43/1.07    'universal_class' ) ) ), member( 'ordered_pair'( T, X ), compose( Y, Z )
% 0.43/1.07     ) ],
% 0.43/1.07     [ ~( 'single_valued_class'( X ) ), subclass( compose( X, inverse( X ) )
% 0.43/1.07    , 'identity_relation' ) ],
% 0.43/1.07     [ ~( subclass( compose( X, inverse( X ) ), 'identity_relation' ) ), 
% 0.43/1.07    'single_valued_class'( X ) ],
% 0.43/1.07     [ ~( function( X ) ), subclass( X, 'cross_product'( 'universal_class', 
% 0.43/1.07    'universal_class' ) ) ],
% 0.43/1.07     [ ~( function( X ) ), subclass( compose( X, inverse( X ) ), 
% 0.43/1.07    'identity_relation' ) ],
% 0.43/1.07     [ ~( subclass( X, 'cross_product'( 'universal_class', 'universal_class'
% 0.43/1.07     ) ) ), ~( subclass( compose( X, inverse( X ) ), 'identity_relation' ) )
% 0.43/1.07    , function( X ) ],
% 0.43/1.07     [ ~( function( X ) ), ~( member( Y, 'universal_class' ) ), member( image( 
% 0.43/1.07    X, Y ), 'universal_class' ) ],
% 0.43/1.07     [ =( X, 'null_class' ), member( regular( X ), X ) ],
% 0.43/1.07     [ =( X, 'null_class' ), =( intersection( X, regular( X ) ), 'null_class'
% 0.43/1.07     ) ],
% 0.43/1.07     [ =( 'sum_class'( image( X, singleton( Y ) ) ), apply( X, Y ) ) ],
% 0.43/1.07     [ function( choice ) ],
% 0.43/1.07     [ ~( member( X, 'universal_class' ) ), =( X, 'null_class' ), member( 
% 0.43/1.07    apply( choice, X ), X ) ],
% 0.43/1.07     [ ~( 'one_to_one'( X ) ), function( X ) ],
% 0.43/1.07     [ ~( 'one_to_one'( X ) ), function( inverse( X ) ) ],
% 0.43/1.07     [ ~( function( inverse( X ) ) ), ~( function( X ) ), 'one_to_one'( X ) ]
% 0.43/1.07    ,
% 0.43/1.07     [ =( intersection( 'cross_product'( 'universal_class', 'universal_class'
% 0.43/1.07     ), intersection( 'cross_product'( 'universal_class', 'universal_class' )
% 0.43/1.07    , complement( compose( complement( 'element_relation' ), inverse( 
% 0.43/1.07    'element_relation' ) ) ) ) ), 'subset_relation' ) ],
% 0.43/1.07     [ =( intersection( inverse( 'subset_relation' ), 'subset_relation' ), 
% 0.43/1.07    'identity_relation' ) ],
% 0.43/1.07     [ =( complement( 'domain_of'( intersection( X, 'identity_relation' ) ) )
% 0.43/1.07    , diagonalise( X ) ) ],
% 0.43/1.07     [ =( intersection( 'domain_of'( X ), diagonalise( compose( inverse( 
% 0.43/1.07    'element_relation' ), X ) ) ), cantor( X ) ) ],
% 0.43/1.07     [ ~( operation( X ) ), function( X ) ],
% 0.43/1.07     [ ~( operation( X ) ), =( 'cross_product'( 'domain_of'( 'domain_of'( X )
% 0.43/1.07     ), 'domain_of'( 'domain_of'( X ) ) ), 'domain_of'( X ) ) ],
% 0.43/1.07     [ ~( operation( X ) ), subclass( 'range_of'( X ), 'domain_of'( 
% 0.43/1.07    'domain_of'( X ) ) ) ],
% 0.43/1.07     [ ~( function( X ) ), ~( =( 'cross_product'( 'domain_of'( 'domain_of'( X
% 0.43/1.07     ) ), 'domain_of'( 'domain_of'( X ) ) ), 'domain_of'( X ) ) ), ~( 
% 0.43/1.07    subclass( 'range_of'( X ), 'domain_of'( 'domain_of'( X ) ) ) ), operation( 
% 0.43/1.07    X ) ],
% 0.43/1.07     [ ~( compatible( X, Y, Z ) ), function( X ) ],
% 0.43/1.07     [ ~( compatible( X, Y, Z ) ), =( 'domain_of'( 'domain_of'( Y ) ), 
% 0.43/1.07    'domain_of'( X ) ) ],
% 0.43/1.07     [ ~( compatible( X, Y, Z ) ), subclass( 'range_of'( X ), 'domain_of'( 
% 0.43/1.07    'domain_of'( Z ) ) ) ],
% 0.43/1.07     [ ~( function( X ) ), ~( =( 'domain_of'( 'domain_of'( Y ) ), 'domain_of'( 
% 0.43/1.07    X ) ) ), ~( subclass( 'range_of'( X ), 'domain_of'( 'domain_of'( Z ) ) )
% 0.43/1.07     ), compatible( X, Y, Z ) ],
% 0.43/1.07     [ ~( homomorphism( X, Y, Z ) ), operation( Y ) ],
% 0.43/1.07     [ ~( homomorphism( X, Y, Z ) ), operation( Z ) ],
% 0.43/1.07     [ ~( homomorphism( X, Y, Z ) ), compatible( X, Y, Z ) ],
% 0.43/1.07     [ ~( homomorphism( X, Y, Z ) ), ~( member( 'ordered_pair'( T, U ), 
% 0.43/1.07    'domain_of'( Y ) ) ), =( apply( Z, 'ordered_pair'( apply( X, T ), apply( 
% 0.43/1.07    X, U ) ) ), apply( X, apply( Y, 'ordered_pair'( T, U ) ) ) ) ],
% 0.43/1.07     [ ~( operation( X ) ), ~( operation( Y ) ), ~( compatible( Z, X, Y ) ), 
% 0.43/1.07    member( 'ordered_pair'( 'not_homomorphism1'( Z, X, Y ), 
% 0.43/1.07    'not_homomorphism2'( Z, X, Y ) ), 'domain_of'( X ) ), homomorphism( Z, X
% 0.43/1.07    , Y ) ],
% 0.43/1.07     [ ~( operation( X ) ), ~( operation( Y ) ), ~( compatible( Z, X, Y ) ), 
% 0.43/1.07    ~( =( apply( Y, 'ordered_pair'( apply( Z, 'not_homomorphism1'( Z, X, Y )
% 0.43/1.07     ), apply( Z, 'not_homomorphism2'( Z, X, Y ) ) ) ), apply( Z, apply( X, 
% 0.43/1.07    'ordered_pair'( 'not_homomorphism1'( Z, X, Y ), 'not_homomorphism2'( Z, X
% 0.43/1.07    , Y ) ) ) ) ) ), homomorphism( Z, X, Y ) ],
% 0.43/1.07     [ member( x, 'cross_product'( 'universal_class', 'universal_class' ) ) ]
% 0.43/1.07    ,
% 0.43/1.07     [ ~( member( x, 'universal_class' ) ) ]
% 0.43/1.07  ] .
% 0.43/1.07  
% 0.43/1.07  
% 0.43/1.07  percentage equality = 0.213115, percentage horn = 0.913978
% 0.43/1.07  This is a problem with some equality
% 0.43/1.07  
% 0.43/1.07  
% 0.43/1.07  
% 0.43/1.07  Options Used:
% 0.43/1.07  
% 0.43/1.07  useres =            1
% 0.43/1.07  useparamod =        1
% 0.43/1.07  useeqrefl =         1
% 0.43/1.07  useeqfact =         1
% 0.43/1.07  usefactor =         1
% 0.43/1.07  usesimpsplitting =  0
% 0.43/1.07  usesimpdemod =      5
% 0.43/1.07  usesimpres =        3
% 0.43/1.07  
% 0.43/1.07  resimpinuse      =  1000
% 0.43/1.07  resimpclauses =     20000
% 0.43/1.07  substype =          eqrewr
% 0.43/1.07  backwardsubs =      1
% 0.43/1.07  selectoldest =      5
% 0.43/1.07  
% 0.43/1.07  litorderings [0] =  split
% 0.43/1.07  litorderings [1] =  extend the termordering, first sorting on arguments
% 0.43/1.07  
% 0.43/1.07  termordering =      kbo
% 0.43/1.07  
% 0.43/1.07  litapriori =        0
% 0.43/1.07  termapriori =       1
% 0.43/1.07  litaposteriori =    0
% 0.43/1.07  termaposteriori =   0
% 0.43/1.07  demodaposteriori =  0
% 0.43/1.07  ordereqreflfact =   0
% 0.43/1.07  
% 0.43/1.07  litselect =         negord
% 0.43/1.07  
% 0.43/1.07  maxweight =         15
% 0.43/1.07  maxdepth =          30000
% 0.43/1.07  maxlength =         115
% 0.43/1.07  maxnrvars =         195
% 0.43/1.07  excuselevel =       1
% 0.43/1.07  increasemaxweight = 1
% 0.43/1.07  
% 0.43/1.07  maxselected =       10000000
% 0.43/1.07  maxnrclauses =      10000000
% 0.43/1.07  
% 0.43/1.07  showgenerated =    0
% 0.43/1.07  showkept =         0
% 0.43/1.07  showselected =     0
% 0.43/1.07  showdeleted =      0
% 0.43/1.07  showresimp =       1
% 0.43/1.07  showstatus =       2000
% 0.43/1.07  
% 0.43/1.07  prologoutput =     1
% 0.43/1.07  nrgoals =          5000000
% 0.43/1.07  totalproof =       1
% 0.43/1.07  
% 0.43/1.07  Symbols occurring in the translation:
% 0.43/1.07  
% 0.43/1.07  {}  [0, 0]      (w:1, o:2, a:1, s:1, b:0), 
% 0.43/1.07  .  [1, 2]      (w:1, o:55, a:1, s:1, b:0), 
% 0.43/1.07  !  [4, 1]      (w:0, o:30, a:1, s:1, b:0), 
% 0.43/1.07  =  [13, 2]      (w:1, o:0, a:0, s:1, b:0), 
% 0.43/1.07  ==>  [14, 2]      (w:1, o:0, a:0, s:1, b:0), 
% 0.43/1.07  subclass  [41, 2]      (w:1, o:80, a:1, s:1, b:0), 
% 0.43/1.07  member  [43, 2]      (w:1, o:81, a:1, s:1, b:0), 
% 0.43/1.07  'not_subclass_element'  [44, 2]      (w:1, o:82, a:1, s:1, b:0), 
% 0.43/1.07  'universal_class'  [45, 0]      (w:1, o:21, a:1, s:1, b:0), 
% 0.43/1.07  'unordered_pair'  [46, 2]      (w:1, o:83, a:1, s:1, b:0), 
% 0.43/1.07  singleton  [47, 1]      (w:1, o:38, a:1, s:1, b:0), 
% 0.43/1.07  'ordered_pair'  [48, 2]      (w:1, o:84, a:1, s:1, b:0), 
% 0.43/1.07  'cross_product'  [50, 2]      (w:1, o:85, a:1, s:1, b:0), 
% 0.43/1.07  first  [52, 1]      (w:1, o:39, a:1, s:1, b:0), 
% 0.43/1.07  second  [53, 1]      (w:1, o:40, a:1, s:1, b:0), 
% 0.43/1.07  'element_relation'  [54, 0]      (w:1, o:25, a:1, s:1, b:0), 
% 0.43/1.07  intersection  [55, 2]      (w:1, o:87, a:1, s:1, b:0), 
% 0.43/1.07  complement  [56, 1]      (w:1, o:41, a:1, s:1, b:0), 
% 0.43/1.07  union  [57, 2]      (w:1, o:88, a:1, s:1, b:0), 
% 0.43/1.07  'symmetric_difference'  [58, 2]      (w:1, o:89, a:1, s:1, b:0), 
% 0.43/1.07  restrict  [60, 3]      (w:1, o:92, a:1, s:1, b:0), 
% 0.43/1.07  'null_class'  [61, 0]      (w:1, o:26, a:1, s:1, b:0), 
% 0.43/1.07  'domain_of'  [62, 1]      (w:1, o:43, a:1, s:1, b:0), 
% 0.43/1.07  rotate  [63, 1]      (w:1, o:35, a:1, s:1, b:0), 
% 0.43/1.07  flip  [65, 1]      (w:1, o:44, a:1, s:1, b:0), 
% 0.43/1.07  inverse  [66, 1]      (w:1, o:45, a:1, s:1, b:0), 
% 0.43/1.07  'range_of'  [67, 1]      (w:1, o:36, a:1, s:1, b:0), 
% 0.43/1.07  domain  [68, 3]      (w:1, o:94, a:1, s:1, b:0), 
% 0.43/1.07  range  [69, 3]      (w:1, o:95, a:1, s:1, b:0), 
% 0.43/1.07  image  [70, 2]      (w:1, o:86, a:1, s:1, b:0), 
% 0.43/1.07  successor  [71, 1]      (w:1, o:46, a:1, s:1, b:0), 
% 0.43/1.07  'successor_relation'  [72, 0]      (w:1, o:6, a:1, s:1, b:0), 
% 0.43/1.07  inductive  [73, 1]      (w:1, o:47, a:1, s:1, b:0), 
% 0.43/1.07  omega  [74, 0]      (w:1, o:9, a:1, s:1, b:0), 
% 0.43/1.07  'sum_class'  [75, 1]      (w:1, o:48, a:1, s:1, b:0), 
% 0.43/1.07  'power_class'  [76, 1]      (w:1, o:51, a:1, s:1, b:0), 
% 0.43/1.07  compose  [78, 2]      (w:1, o:90, a:1, s:1, b:0), 
% 0.43/1.07  'single_valued_class'  [79, 1]      (w:1, o:52, a:1, s:1, b:0), 
% 0.43/1.07  'identity_relation'  [80, 0]      (w:1, o:27, a:1, s:1, b:0), 
% 0.43/1.07  function  [82, 1]      (w:1, o:53, a:1, s:1, b:0), 
% 0.43/1.07  regular  [83, 1]      (w:1, o:37, a:1, s:1, b:0), 
% 0.43/1.07  apply  [84, 2]      (w:1, o:91, a:1, s:1, b:0), 
% 0.43/1.07  choice  [85, 0]      (w:1, o:28, a:1, s:1, b:0), 
% 0.43/1.07  'one_to_one'  [86, 1]      (w:1, o:49, a:1, s:1, b:0), 
% 0.43/1.07  'subset_relation'  [87, 0]      (w:1, o:5, a:1, s:1, b:0), 
% 0.43/1.07  diagonalise  [88, 1]      (w:1, o:54, a:1, s:1, b:0), 
% 0.43/1.07  cantor  [89, 1]      (w:1, o:42, a:1, s:1, b:0), 
% 0.43/1.07  operation  [90, 1]      (w:1, o:50, a:1, s:1, b:0), 
% 0.43/1.07  compatible  [94, 3]      (w:1, o:93, a:1, s:1, b:0), 
% 0.43/1.07  homomorphism  [95, 3]      (w:1, o:96, a:1, s:1, b:0), 
% 0.43/1.07  'not_homomorphism1'  [96, 3]      (w:1, o:97, a:1, s:1, b:0), 
% 0.43/1.07  'not_homomorphism2'  [97, 3]      (w:1, o:98, a:1, s:1, b:0), 
% 0.43/1.07  x  [98, 0]      (w:1, o:29, a:1, s:1, b:0).
% 0.43/1.07  
% 0.43/1.07  
% 0.43/1.07  Starting Search:
% 0.43/1.07  
% 0.43/1.07  
% 0.43/1.07  Bliksems!, er is een bewijs:
% 0.43/1.07  % SZS status Unsatisfiable
% 0.43/1.07  % SZS output start Refutation
% 0.43/1.07  
% 0.43/1.07  clause( 0, [ ~( subclass( X, Y ) ), ~( member( Z, X ) ), member( Z, Y ) ]
% 0.43/1.07     )
% 0.43/1.07  .
% 0.43/1.07  clause( 3, [ subclass( X, 'universal_class' ) ] )
% 0.43/1.07  .
% 0.43/1.07  clause( 90, [ member( x, 'cross_product'( 'universal_class', 
% 0.43/1.07    'universal_class' ) ) ] )
% 0.43/1.07  .
% 0.43/1.07  clause( 91, [ ~( member( x, 'universal_class' ) ) ] )
% 0.43/1.07  .
% 0.43/1.07  clause( 105, [ ~( member( x, X ) ) ] )
% 0.43/1.07  .
% 0.43/1.07  clause( 117, [] )
% 0.43/1.07  .
% 0.43/1.07  
% 0.43/1.07  
% 0.43/1.07  % SZS output end Refutation
% 0.43/1.07  found a proof!
% 0.43/1.07  
% 0.43/1.07  % ABCDEFGHIJKLMNOPQRSTUVWXYZ
% 0.43/1.07  
% 0.43/1.07  initialclauses(
% 0.43/1.07  [ clause( 119, [ ~( subclass( X, Y ) ), ~( member( Z, X ) ), member( Z, Y )
% 0.43/1.07     ] )
% 0.43/1.07  , clause( 120, [ member( 'not_subclass_element'( X, Y ), X ), subclass( X, 
% 0.43/1.07    Y ) ] )
% 0.43/1.07  , clause( 121, [ ~( member( 'not_subclass_element'( X, Y ), Y ) ), subclass( 
% 0.43/1.07    X, Y ) ] )
% 0.43/1.07  , clause( 122, [ subclass( X, 'universal_class' ) ] )
% 0.43/1.07  , clause( 123, [ ~( =( X, Y ) ), subclass( X, Y ) ] )
% 0.43/1.07  , clause( 124, [ ~( =( X, Y ) ), subclass( Y, X ) ] )
% 0.43/1.07  , clause( 125, [ ~( subclass( X, Y ) ), ~( subclass( Y, X ) ), =( X, Y ) ]
% 0.43/1.07     )
% 0.43/1.07  , clause( 126, [ ~( member( X, 'unordered_pair'( Y, Z ) ) ), =( X, Y ), =( 
% 0.43/1.07    X, Z ) ] )
% 0.43/1.07  , clause( 127, [ ~( member( X, 'universal_class' ) ), member( X, 
% 0.43/1.07    'unordered_pair'( X, Y ) ) ] )
% 0.43/1.07  , clause( 128, [ ~( member( X, 'universal_class' ) ), member( X, 
% 0.43/1.07    'unordered_pair'( Y, X ) ) ] )
% 0.43/1.07  , clause( 129, [ member( 'unordered_pair'( X, Y ), 'universal_class' ) ] )
% 0.43/1.07  , clause( 130, [ =( 'unordered_pair'( X, X ), singleton( X ) ) ] )
% 0.43/1.07  , clause( 131, [ =( 'unordered_pair'( singleton( X ), 'unordered_pair'( X, 
% 0.43/1.07    singleton( Y ) ) ), 'ordered_pair'( X, Y ) ) ] )
% 0.43/1.07  , clause( 132, [ ~( member( 'ordered_pair'( X, Y ), 'cross_product'( Z, T )
% 0.43/1.07     ) ), member( X, Z ) ] )
% 0.43/1.07  , clause( 133, [ ~( member( 'ordered_pair'( X, Y ), 'cross_product'( Z, T )
% 0.43/1.07     ) ), member( Y, T ) ] )
% 0.43/1.07  , clause( 134, [ ~( member( X, Y ) ), ~( member( Z, T ) ), member( 
% 0.43/1.07    'ordered_pair'( X, Z ), 'cross_product'( Y, T ) ) ] )
% 0.43/1.07  , clause( 135, [ ~( member( X, 'cross_product'( Y, Z ) ) ), =( 
% 0.43/1.07    'ordered_pair'( first( X ), second( X ) ), X ) ] )
% 0.43/1.07  , clause( 136, [ subclass( 'element_relation', 'cross_product'( 
% 0.43/1.07    'universal_class', 'universal_class' ) ) ] )
% 0.43/1.07  , clause( 137, [ ~( member( 'ordered_pair'( X, Y ), 'element_relation' ) )
% 0.43/1.07    , member( X, Y ) ] )
% 0.43/1.07  , clause( 138, [ ~( member( 'ordered_pair'( X, Y ), 'cross_product'( 
% 0.43/1.07    'universal_class', 'universal_class' ) ) ), ~( member( X, Y ) ), member( 
% 0.43/1.07    'ordered_pair'( X, Y ), 'element_relation' ) ] )
% 0.43/1.07  , clause( 139, [ ~( member( X, intersection( Y, Z ) ) ), member( X, Y ) ]
% 0.43/1.07     )
% 0.43/1.07  , clause( 140, [ ~( member( X, intersection( Y, Z ) ) ), member( X, Z ) ]
% 0.43/1.07     )
% 0.43/1.07  , clause( 141, [ ~( member( X, Y ) ), ~( member( X, Z ) ), member( X, 
% 0.43/1.07    intersection( Y, Z ) ) ] )
% 0.43/1.07  , clause( 142, [ ~( member( X, complement( Y ) ) ), ~( member( X, Y ) ) ]
% 0.43/1.07     )
% 0.43/1.07  , clause( 143, [ ~( member( X, 'universal_class' ) ), member( X, complement( 
% 0.43/1.07    Y ) ), member( X, Y ) ] )
% 0.43/1.07  , clause( 144, [ =( complement( intersection( complement( X ), complement( 
% 0.43/1.07    Y ) ) ), union( X, Y ) ) ] )
% 0.43/1.07  , clause( 145, [ =( intersection( complement( intersection( X, Y ) ), 
% 0.43/1.07    complement( intersection( complement( X ), complement( Y ) ) ) ), 
% 0.43/1.07    'symmetric_difference'( X, Y ) ) ] )
% 0.43/1.07  , clause( 146, [ =( intersection( X, 'cross_product'( Y, Z ) ), restrict( X
% 0.43/1.07    , Y, Z ) ) ] )
% 0.43/1.07  , clause( 147, [ =( intersection( 'cross_product'( X, Y ), Z ), restrict( Z
% 0.43/1.07    , X, Y ) ) ] )
% 0.43/1.07  , clause( 148, [ ~( =( restrict( X, singleton( Y ), 'universal_class' ), 
% 0.43/1.07    'null_class' ) ), ~( member( Y, 'domain_of'( X ) ) ) ] )
% 0.43/1.07  , clause( 149, [ ~( member( X, 'universal_class' ) ), =( restrict( Y, 
% 0.43/1.07    singleton( X ), 'universal_class' ), 'null_class' ), member( X, 
% 0.43/1.07    'domain_of'( Y ) ) ] )
% 0.43/1.07  , clause( 150, [ subclass( rotate( X ), 'cross_product'( 'cross_product'( 
% 0.43/1.07    'universal_class', 'universal_class' ), 'universal_class' ) ) ] )
% 0.43/1.07  , clause( 151, [ ~( member( 'ordered_pair'( 'ordered_pair'( X, Y ), Z ), 
% 0.43/1.07    rotate( T ) ) ), member( 'ordered_pair'( 'ordered_pair'( Y, Z ), X ), T )
% 0.43/1.07     ] )
% 0.43/1.07  , clause( 152, [ ~( member( 'ordered_pair'( 'ordered_pair'( X, Y ), Z ), T
% 0.43/1.07     ) ), ~( member( 'ordered_pair'( 'ordered_pair'( Z, X ), Y ), 
% 0.43/1.07    'cross_product'( 'cross_product'( 'universal_class', 'universal_class' )
% 0.43/1.07    , 'universal_class' ) ) ), member( 'ordered_pair'( 'ordered_pair'( Z, X )
% 0.43/1.07    , Y ), rotate( T ) ) ] )
% 0.43/1.07  , clause( 153, [ subclass( flip( X ), 'cross_product'( 'cross_product'( 
% 0.43/1.07    'universal_class', 'universal_class' ), 'universal_class' ) ) ] )
% 0.43/1.07  , clause( 154, [ ~( member( 'ordered_pair'( 'ordered_pair'( X, Y ), Z ), 
% 0.43/1.07    flip( T ) ) ), member( 'ordered_pair'( 'ordered_pair'( Y, X ), Z ), T ) ]
% 0.43/1.07     )
% 0.43/1.07  , clause( 155, [ ~( member( 'ordered_pair'( 'ordered_pair'( X, Y ), Z ), T
% 0.43/1.07     ) ), ~( member( 'ordered_pair'( 'ordered_pair'( Y, X ), Z ), 
% 0.43/1.07    'cross_product'( 'cross_product'( 'universal_class', 'universal_class' )
% 0.43/1.07    , 'universal_class' ) ) ), member( 'ordered_pair'( 'ordered_pair'( Y, X )
% 0.43/1.07    , Z ), flip( T ) ) ] )
% 0.43/1.07  , clause( 156, [ =( 'domain_of'( flip( 'cross_product'( X, 
% 0.43/1.07    'universal_class' ) ) ), inverse( X ) ) ] )
% 0.43/1.07  , clause( 157, [ =( 'domain_of'( inverse( X ) ), 'range_of'( X ) ) ] )
% 0.43/1.07  , clause( 158, [ =( first( 'not_subclass_element'( restrict( X, Y, 
% 0.43/1.07    singleton( Z ) ), 'null_class' ) ), domain( X, Y, Z ) ) ] )
% 0.43/1.07  , clause( 159, [ =( second( 'not_subclass_element'( restrict( X, singleton( 
% 0.43/1.07    Y ), Z ), 'null_class' ) ), range( X, Y, Z ) ) ] )
% 0.43/1.07  , clause( 160, [ =( 'range_of'( restrict( X, Y, 'universal_class' ) ), 
% 0.43/1.07    image( X, Y ) ) ] )
% 0.43/1.07  , clause( 161, [ =( union( X, singleton( X ) ), successor( X ) ) ] )
% 0.43/1.07  , clause( 162, [ subclass( 'successor_relation', 'cross_product'( 
% 0.43/1.07    'universal_class', 'universal_class' ) ) ] )
% 0.43/1.07  , clause( 163, [ ~( member( 'ordered_pair'( X, Y ), 'successor_relation' )
% 0.43/1.07     ), =( successor( X ), Y ) ] )
% 0.43/1.07  , clause( 164, [ ~( =( successor( X ), Y ) ), ~( member( 'ordered_pair'( X
% 0.43/1.07    , Y ), 'cross_product'( 'universal_class', 'universal_class' ) ) ), 
% 0.43/1.07    member( 'ordered_pair'( X, Y ), 'successor_relation' ) ] )
% 0.43/1.07  , clause( 165, [ ~( inductive( X ) ), member( 'null_class', X ) ] )
% 0.43/1.07  , clause( 166, [ ~( inductive( X ) ), subclass( image( 'successor_relation'
% 0.43/1.07    , X ), X ) ] )
% 0.43/1.07  , clause( 167, [ ~( member( 'null_class', X ) ), ~( subclass( image( 
% 0.43/1.07    'successor_relation', X ), X ) ), inductive( X ) ] )
% 0.43/1.07  , clause( 168, [ inductive( omega ) ] )
% 0.43/1.07  , clause( 169, [ ~( inductive( X ) ), subclass( omega, X ) ] )
% 0.43/1.07  , clause( 170, [ member( omega, 'universal_class' ) ] )
% 0.43/1.07  , clause( 171, [ =( 'domain_of'( restrict( 'element_relation', 
% 0.43/1.07    'universal_class', X ) ), 'sum_class'( X ) ) ] )
% 0.43/1.07  , clause( 172, [ ~( member( X, 'universal_class' ) ), member( 'sum_class'( 
% 0.43/1.07    X ), 'universal_class' ) ] )
% 0.43/1.07  , clause( 173, [ =( complement( image( 'element_relation', complement( X )
% 0.43/1.07     ) ), 'power_class'( X ) ) ] )
% 0.43/1.07  , clause( 174, [ ~( member( X, 'universal_class' ) ), member( 'power_class'( 
% 0.43/1.07    X ), 'universal_class' ) ] )
% 0.43/1.07  , clause( 175, [ subclass( compose( X, Y ), 'cross_product'( 
% 0.43/1.07    'universal_class', 'universal_class' ) ) ] )
% 0.43/1.07  , clause( 176, [ ~( member( 'ordered_pair'( X, Y ), compose( Z, T ) ) ), 
% 0.43/1.07    member( Y, image( Z, image( T, singleton( X ) ) ) ) ] )
% 0.43/1.07  , clause( 177, [ ~( member( X, image( Y, image( Z, singleton( T ) ) ) ) ), 
% 0.43/1.07    ~( member( 'ordered_pair'( T, X ), 'cross_product'( 'universal_class', 
% 0.43/1.07    'universal_class' ) ) ), member( 'ordered_pair'( T, X ), compose( Y, Z )
% 0.43/1.07     ) ] )
% 0.43/1.07  , clause( 178, [ ~( 'single_valued_class'( X ) ), subclass( compose( X, 
% 0.43/1.07    inverse( X ) ), 'identity_relation' ) ] )
% 0.43/1.07  , clause( 179, [ ~( subclass( compose( X, inverse( X ) ), 
% 0.43/1.07    'identity_relation' ) ), 'single_valued_class'( X ) ] )
% 0.43/1.07  , clause( 180, [ ~( function( X ) ), subclass( X, 'cross_product'( 
% 0.43/1.07    'universal_class', 'universal_class' ) ) ] )
% 0.43/1.07  , clause( 181, [ ~( function( X ) ), subclass( compose( X, inverse( X ) ), 
% 0.43/1.07    'identity_relation' ) ] )
% 0.43/1.07  , clause( 182, [ ~( subclass( X, 'cross_product'( 'universal_class', 
% 0.43/1.07    'universal_class' ) ) ), ~( subclass( compose( X, inverse( X ) ), 
% 0.43/1.07    'identity_relation' ) ), function( X ) ] )
% 0.43/1.07  , clause( 183, [ ~( function( X ) ), ~( member( Y, 'universal_class' ) ), 
% 0.43/1.07    member( image( X, Y ), 'universal_class' ) ] )
% 0.43/1.07  , clause( 184, [ =( X, 'null_class' ), member( regular( X ), X ) ] )
% 0.43/1.07  , clause( 185, [ =( X, 'null_class' ), =( intersection( X, regular( X ) ), 
% 0.43/1.07    'null_class' ) ] )
% 0.43/1.07  , clause( 186, [ =( 'sum_class'( image( X, singleton( Y ) ) ), apply( X, Y
% 0.43/1.07     ) ) ] )
% 0.43/1.07  , clause( 187, [ function( choice ) ] )
% 0.43/1.07  , clause( 188, [ ~( member( X, 'universal_class' ) ), =( X, 'null_class' )
% 0.43/1.07    , member( apply( choice, X ), X ) ] )
% 0.43/1.07  , clause( 189, [ ~( 'one_to_one'( X ) ), function( X ) ] )
% 0.43/1.07  , clause( 190, [ ~( 'one_to_one'( X ) ), function( inverse( X ) ) ] )
% 0.43/1.07  , clause( 191, [ ~( function( inverse( X ) ) ), ~( function( X ) ), 
% 0.43/1.07    'one_to_one'( X ) ] )
% 0.43/1.07  , clause( 192, [ =( intersection( 'cross_product'( 'universal_class', 
% 0.43/1.07    'universal_class' ), intersection( 'cross_product'( 'universal_class', 
% 0.43/1.07    'universal_class' ), complement( compose( complement( 'element_relation'
% 0.43/1.07     ), inverse( 'element_relation' ) ) ) ) ), 'subset_relation' ) ] )
% 0.43/1.07  , clause( 193, [ =( intersection( inverse( 'subset_relation' ), 
% 0.43/1.07    'subset_relation' ), 'identity_relation' ) ] )
% 0.43/1.07  , clause( 194, [ =( complement( 'domain_of'( intersection( X, 
% 0.43/1.07    'identity_relation' ) ) ), diagonalise( X ) ) ] )
% 0.43/1.07  , clause( 195, [ =( intersection( 'domain_of'( X ), diagonalise( compose( 
% 0.43/1.07    inverse( 'element_relation' ), X ) ) ), cantor( X ) ) ] )
% 0.43/1.07  , clause( 196, [ ~( operation( X ) ), function( X ) ] )
% 0.43/1.07  , clause( 197, [ ~( operation( X ) ), =( 'cross_product'( 'domain_of'( 
% 0.43/1.07    'domain_of'( X ) ), 'domain_of'( 'domain_of'( X ) ) ), 'domain_of'( X ) )
% 0.43/1.07     ] )
% 0.43/1.07  , clause( 198, [ ~( operation( X ) ), subclass( 'range_of'( X ), 
% 0.43/1.07    'domain_of'( 'domain_of'( X ) ) ) ] )
% 0.43/1.07  , clause( 199, [ ~( function( X ) ), ~( =( 'cross_product'( 'domain_of'( 
% 0.43/1.07    'domain_of'( X ) ), 'domain_of'( 'domain_of'( X ) ) ), 'domain_of'( X ) )
% 0.43/1.07     ), ~( subclass( 'range_of'( X ), 'domain_of'( 'domain_of'( X ) ) ) ), 
% 0.43/1.07    operation( X ) ] )
% 0.43/1.07  , clause( 200, [ ~( compatible( X, Y, Z ) ), function( X ) ] )
% 0.43/1.07  , clause( 201, [ ~( compatible( X, Y, Z ) ), =( 'domain_of'( 'domain_of'( Y
% 0.43/1.07     ) ), 'domain_of'( X ) ) ] )
% 0.43/1.07  , clause( 202, [ ~( compatible( X, Y, Z ) ), subclass( 'range_of'( X ), 
% 0.43/1.07    'domain_of'( 'domain_of'( Z ) ) ) ] )
% 0.43/1.07  , clause( 203, [ ~( function( X ) ), ~( =( 'domain_of'( 'domain_of'( Y ) )
% 0.43/1.07    , 'domain_of'( X ) ) ), ~( subclass( 'range_of'( X ), 'domain_of'( 
% 0.43/1.07    'domain_of'( Z ) ) ) ), compatible( X, Y, Z ) ] )
% 0.43/1.07  , clause( 204, [ ~( homomorphism( X, Y, Z ) ), operation( Y ) ] )
% 0.43/1.07  , clause( 205, [ ~( homomorphism( X, Y, Z ) ), operation( Z ) ] )
% 0.43/1.07  , clause( 206, [ ~( homomorphism( X, Y, Z ) ), compatible( X, Y, Z ) ] )
% 0.43/1.07  , clause( 207, [ ~( homomorphism( X, Y, Z ) ), ~( member( 'ordered_pair'( T
% 0.43/1.07    , U ), 'domain_of'( Y ) ) ), =( apply( Z, 'ordered_pair'( apply( X, T ), 
% 0.43/1.07    apply( X, U ) ) ), apply( X, apply( Y, 'ordered_pair'( T, U ) ) ) ) ] )
% 0.43/1.07  , clause( 208, [ ~( operation( X ) ), ~( operation( Y ) ), ~( compatible( Z
% 0.43/1.07    , X, Y ) ), member( 'ordered_pair'( 'not_homomorphism1'( Z, X, Y ), 
% 0.43/1.07    'not_homomorphism2'( Z, X, Y ) ), 'domain_of'( X ) ), homomorphism( Z, X
% 0.43/1.07    , Y ) ] )
% 0.43/1.07  , clause( 209, [ ~( operation( X ) ), ~( operation( Y ) ), ~( compatible( Z
% 0.43/1.07    , X, Y ) ), ~( =( apply( Y, 'ordered_pair'( apply( Z, 'not_homomorphism1'( 
% 0.43/1.07    Z, X, Y ) ), apply( Z, 'not_homomorphism2'( Z, X, Y ) ) ) ), apply( Z, 
% 0.43/1.07    apply( X, 'ordered_pair'( 'not_homomorphism1'( Z, X, Y ), 
% 0.43/1.07    'not_homomorphism2'( Z, X, Y ) ) ) ) ) ), homomorphism( Z, X, Y ) ] )
% 0.43/1.07  , clause( 210, [ member( x, 'cross_product'( 'universal_class', 
% 0.43/1.07    'universal_class' ) ) ] )
% 0.43/1.07  , clause( 211, [ ~( member( x, 'universal_class' ) ) ] )
% 0.43/1.07  ] ).
% 0.43/1.07  
% 0.43/1.07  
% 0.43/1.07  
% 0.43/1.07  subsumption(
% 0.43/1.07  clause( 0, [ ~( subclass( X, Y ) ), ~( member( Z, X ) ), member( Z, Y ) ]
% 0.43/1.07     )
% 0.43/1.07  , clause( 119, [ ~( subclass( X, Y ) ), ~( member( Z, X ) ), member( Z, Y )
% 0.43/1.07     ] )
% 0.43/1.07  , substitution( 0, [ :=( X, X ), :=( Y, Y ), :=( Z, Z )] ), 
% 0.43/1.07    permutation( 0, [ ==>( 0, 0 ), ==>( 1, 1 ), ==>( 2, 2 )] ) ).
% 0.43/1.07  
% 0.43/1.07  
% 0.43/1.07  subsumption(
% 0.43/1.07  clause( 3, [ subclass( X, 'universal_class' ) ] )
% 0.43/1.07  , clause( 122, [ subclass( X, 'universal_class' ) ] )
% 0.43/1.07  , substitution( 0, [ :=( X, X )] ), permutation( 0, [ ==>( 0, 0 )] ) ).
% 0.43/1.07  
% 0.43/1.07  
% 0.43/1.07  subsumption(
% 0.43/1.07  clause( 90, [ member( x, 'cross_product'( 'universal_class', 
% 0.43/1.07    'universal_class' ) ) ] )
% 0.43/1.07  , clause( 210, [ member( x, 'cross_product'( 'universal_class', 
% 0.43/1.07    'universal_class' ) ) ] )
% 0.43/1.07  , substitution( 0, [] ), permutation( 0, [ ==>( 0, 0 )] ) ).
% 0.43/1.07  
% 0.43/1.07  
% 0.43/1.07  subsumption(
% 0.43/1.07  clause( 91, [ ~( member( x, 'universal_class' ) ) ] )
% 0.43/1.07  , clause( 211, [ ~( member( x, 'universal_class' ) ) ] )
% 0.43/1.07  , substitution( 0, [] ), permutation( 0, [ ==>( 0, 0 )] ) ).
% 0.43/1.07  
% 0.43/1.07  
% 0.43/1.07  resolution(
% 0.43/1.07  clause( 312, [ ~( subclass( X, 'universal_class' ) ), ~( member( x, X ) ) ]
% 0.43/1.07     )
% 0.43/1.07  , clause( 91, [ ~( member( x, 'universal_class' ) ) ] )
% 0.43/1.07  , 0, clause( 0, [ ~( subclass( X, Y ) ), ~( member( Z, X ) ), member( Z, Y
% 0.43/1.07     ) ] )
% 0.43/1.07  , 2, substitution( 0, [] ), substitution( 1, [ :=( X, X ), :=( Y, 
% 0.43/1.07    'universal_class' ), :=( Z, x )] )).
% 0.43/1.07  
% 0.43/1.07  
% 0.43/1.07  resolution(
% 0.43/1.07  clause( 313, [ ~( member( x, X ) ) ] )
% 0.43/1.07  , clause( 312, [ ~( subclass( X, 'universal_class' ) ), ~( member( x, X ) )
% 0.43/1.07     ] )
% 0.43/1.07  , 0, clause( 3, [ subclass( X, 'universal_class' ) ] )
% 0.43/1.07  , 0, substitution( 0, [ :=( X, X )] ), substitution( 1, [ :=( X, X )] )
% 0.43/1.07    ).
% 0.43/1.07  
% 0.43/1.07  
% 0.43/1.07  subsumption(
% 0.43/1.07  clause( 105, [ ~( member( x, X ) ) ] )
% 0.43/1.07  , clause( 313, [ ~( member( x, X ) ) ] )
% 0.43/1.07  , substitution( 0, [ :=( X, X )] ), permutation( 0, [ ==>( 0, 0 )] ) ).
% 0.43/1.07  
% 0.43/1.07  
% 0.43/1.07  resolution(
% 0.43/1.07  clause( 314, [] )
% 0.43/1.07  , clause( 105, [ ~( member( x, X ) ) ] )
% 0.43/1.07  , 0, clause( 90, [ member( x, 'cross_product'( 'universal_class', 
% 0.43/1.07    'universal_class' ) ) ] )
% 0.43/1.07  , 0, substitution( 0, [ :=( X, 'cross_product'( 'universal_class', 
% 0.43/1.07    'universal_class' ) )] ), substitution( 1, [] )).
% 0.43/1.07  
% 0.43/1.07  
% 0.43/1.07  subsumption(
% 0.43/1.07  clause( 117, [] )
% 0.43/1.07  , clause( 314, [] )
% 0.43/1.07  , substitution( 0, [] ), permutation( 0, [] ) ).
% 0.43/1.07  
% 0.43/1.07  
% 0.43/1.07  end.
% 0.43/1.07  
% 0.43/1.07  % ABCDEFGHIJKLMNOPQRSTUVWXYZ
% 0.43/1.07  
% 0.43/1.07  Memory use:
% 0.43/1.07  
% 0.43/1.07  space for terms:        3923
% 0.43/1.07  space for clauses:      9177
% 0.43/1.07  
% 0.43/1.07  
% 0.43/1.07  clauses generated:      136
% 0.43/1.07  clauses kept:           118
% 0.43/1.07  clauses selected:       16
% 0.43/1.07  clauses deleted:        1
% 0.43/1.07  clauses inuse deleted:  0
% 0.43/1.07  
% 0.43/1.07  subsentry:          615
% 0.43/1.07  literals s-matched: 372
% 0.43/1.07  literals matched:   372
% 0.43/1.07  full subsumption:   102
% 0.43/1.07  
% 0.43/1.07  checksum:           -920444487
% 0.43/1.07  
% 0.43/1.07  
% 0.43/1.07  Bliksem ended
%------------------------------------------------------------------------------