TSTP Solution File: SET102-6 by Bliksem---1.12

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : Bliksem---1.12
% Problem  : SET102-6 : TPTP v8.1.0. Bugfixed v2.1.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : bliksem %s

% Computer : n023.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 22:47:07 EDT 2022

% Result   : Unsatisfiable 1.27s 1.64s
% Output   : Refutation 1.27s
% Verified : 
% SZS Type : -

% Comments : 
%------------------------------------------------------------------------------
%----WARNING: Could not form TPTP format derivation
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.04/0.13  % Problem  : SET102-6 : TPTP v8.1.0. Bugfixed v2.1.0.
% 0.04/0.14  % Command  : bliksem %s
% 0.14/0.36  % Computer : n023.cluster.edu
% 0.14/0.36  % Model    : x86_64 x86_64
% 0.14/0.36  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.14/0.36  % Memory   : 8042.1875MB
% 0.14/0.36  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.14/0.36  % CPULimit : 300
% 0.14/0.36  % DateTime : Sun Jul 10 00:40:25 EDT 2022
% 0.14/0.36  % CPUTime  : 
% 0.79/1.18  *** allocated 10000 integers for termspace/termends
% 0.79/1.18  *** allocated 10000 integers for clauses
% 0.79/1.18  *** allocated 10000 integers for justifications
% 0.79/1.18  Bliksem 1.12
% 0.79/1.18  
% 0.79/1.18  
% 0.79/1.18  Automatic Strategy Selection
% 0.79/1.18  
% 0.79/1.18  Clauses:
% 0.79/1.18  [
% 0.79/1.18     [ ~( subclass( X, Y ) ), ~( member( Z, X ) ), member( Z, Y ) ],
% 0.79/1.18     [ member( 'not_subclass_element'( X, Y ), X ), subclass( X, Y ) ],
% 0.79/1.18     [ ~( member( 'not_subclass_element'( X, Y ), Y ) ), subclass( X, Y ) ]
% 0.79/1.18    ,
% 0.79/1.18     [ subclass( X, 'universal_class' ) ],
% 0.79/1.18     [ ~( =( X, Y ) ), subclass( X, Y ) ],
% 0.79/1.18     [ ~( =( X, Y ) ), subclass( Y, X ) ],
% 0.79/1.18     [ ~( subclass( X, Y ) ), ~( subclass( Y, X ) ), =( X, Y ) ],
% 0.79/1.18     [ ~( member( X, 'unordered_pair'( Y, Z ) ) ), =( X, Y ), =( X, Z ) ]
% 0.79/1.18    ,
% 0.79/1.18     [ ~( member( X, 'universal_class' ) ), member( X, 'unordered_pair'( X, Y
% 0.79/1.18     ) ) ],
% 0.79/1.18     [ ~( member( X, 'universal_class' ) ), member( X, 'unordered_pair'( Y, X
% 0.79/1.18     ) ) ],
% 0.79/1.18     [ member( 'unordered_pair'( X, Y ), 'universal_class' ) ],
% 0.79/1.18     [ =( 'unordered_pair'( X, X ), singleton( X ) ) ],
% 0.79/1.18     [ =( 'unordered_pair'( singleton( X ), 'unordered_pair'( X, singleton( Y
% 0.79/1.18     ) ) ), 'ordered_pair'( X, Y ) ) ],
% 0.79/1.18     [ ~( member( 'ordered_pair'( X, Y ), 'cross_product'( Z, T ) ) ), member( 
% 0.79/1.18    X, Z ) ],
% 0.79/1.18     [ ~( member( 'ordered_pair'( X, Y ), 'cross_product'( Z, T ) ) ), member( 
% 0.79/1.18    Y, T ) ],
% 0.79/1.18     [ ~( member( X, Y ) ), ~( member( Z, T ) ), member( 'ordered_pair'( X, Z
% 0.79/1.18     ), 'cross_product'( Y, T ) ) ],
% 0.79/1.18     [ ~( member( X, 'cross_product'( Y, Z ) ) ), =( 'ordered_pair'( first( X
% 0.79/1.18     ), second( X ) ), X ) ],
% 0.79/1.18     [ subclass( 'element_relation', 'cross_product'( 'universal_class', 
% 0.79/1.18    'universal_class' ) ) ],
% 0.79/1.18     [ ~( member( 'ordered_pair'( X, Y ), 'element_relation' ) ), member( X, 
% 0.79/1.18    Y ) ],
% 0.79/1.18     [ ~( member( 'ordered_pair'( X, Y ), 'cross_product'( 'universal_class'
% 0.79/1.18    , 'universal_class' ) ) ), ~( member( X, Y ) ), member( 'ordered_pair'( X
% 0.79/1.18    , Y ), 'element_relation' ) ],
% 0.79/1.18     [ ~( member( X, intersection( Y, Z ) ) ), member( X, Y ) ],
% 0.79/1.18     [ ~( member( X, intersection( Y, Z ) ) ), member( X, Z ) ],
% 0.79/1.18     [ ~( member( X, Y ) ), ~( member( X, Z ) ), member( X, intersection( Y, 
% 0.79/1.18    Z ) ) ],
% 0.79/1.18     [ ~( member( X, complement( Y ) ) ), ~( member( X, Y ) ) ],
% 0.79/1.18     [ ~( member( X, 'universal_class' ) ), member( X, complement( Y ) ), 
% 0.79/1.18    member( X, Y ) ],
% 0.79/1.18     [ =( complement( intersection( complement( X ), complement( Y ) ) ), 
% 0.79/1.18    union( X, Y ) ) ],
% 0.79/1.18     [ =( intersection( complement( intersection( X, Y ) ), complement( 
% 0.79/1.18    intersection( complement( X ), complement( Y ) ) ) ), 
% 0.79/1.18    'symmetric_difference'( X, Y ) ) ],
% 0.79/1.18     [ =( intersection( X, 'cross_product'( Y, Z ) ), restrict( X, Y, Z ) ) ]
% 0.79/1.18    ,
% 0.79/1.18     [ =( intersection( 'cross_product'( X, Y ), Z ), restrict( Z, X, Y ) ) ]
% 0.79/1.18    ,
% 0.79/1.18     [ ~( =( restrict( X, singleton( Y ), 'universal_class' ), 'null_class' )
% 0.79/1.18     ), ~( member( Y, 'domain_of'( X ) ) ) ],
% 0.79/1.18     [ ~( member( X, 'universal_class' ) ), =( restrict( Y, singleton( X ), 
% 0.79/1.18    'universal_class' ), 'null_class' ), member( X, 'domain_of'( Y ) ) ],
% 0.79/1.18     [ subclass( rotate( X ), 'cross_product'( 'cross_product'( 
% 0.79/1.18    'universal_class', 'universal_class' ), 'universal_class' ) ) ],
% 0.79/1.18     [ ~( member( 'ordered_pair'( 'ordered_pair'( X, Y ), Z ), rotate( T ) )
% 0.79/1.18     ), member( 'ordered_pair'( 'ordered_pair'( Y, Z ), X ), T ) ],
% 0.79/1.18     [ ~( member( 'ordered_pair'( 'ordered_pair'( X, Y ), Z ), T ) ), ~( 
% 0.79/1.18    member( 'ordered_pair'( 'ordered_pair'( Z, X ), Y ), 'cross_product'( 
% 0.79/1.18    'cross_product'( 'universal_class', 'universal_class' ), 
% 0.79/1.18    'universal_class' ) ) ), member( 'ordered_pair'( 'ordered_pair'( Z, X ), 
% 0.79/1.18    Y ), rotate( T ) ) ],
% 0.79/1.18     [ subclass( flip( X ), 'cross_product'( 'cross_product'( 
% 0.79/1.18    'universal_class', 'universal_class' ), 'universal_class' ) ) ],
% 0.79/1.18     [ ~( member( 'ordered_pair'( 'ordered_pair'( X, Y ), Z ), flip( T ) ) )
% 0.79/1.18    , member( 'ordered_pair'( 'ordered_pair'( Y, X ), Z ), T ) ],
% 0.79/1.18     [ ~( member( 'ordered_pair'( 'ordered_pair'( X, Y ), Z ), T ) ), ~( 
% 0.79/1.18    member( 'ordered_pair'( 'ordered_pair'( Y, X ), Z ), 'cross_product'( 
% 0.79/1.18    'cross_product'( 'universal_class', 'universal_class' ), 
% 0.79/1.18    'universal_class' ) ) ), member( 'ordered_pair'( 'ordered_pair'( Y, X ), 
% 0.79/1.18    Z ), flip( T ) ) ],
% 0.79/1.18     [ =( 'domain_of'( flip( 'cross_product'( X, 'universal_class' ) ) ), 
% 0.79/1.18    inverse( X ) ) ],
% 0.79/1.18     [ =( 'domain_of'( inverse( X ) ), 'range_of'( X ) ) ],
% 0.79/1.18     [ =( first( 'not_subclass_element'( restrict( X, Y, singleton( Z ) ), 
% 0.79/1.18    'null_class' ) ), domain( X, Y, Z ) ) ],
% 0.79/1.18     [ =( second( 'not_subclass_element'( restrict( X, singleton( Y ), Z ), 
% 0.79/1.18    'null_class' ) ), range( X, Y, Z ) ) ],
% 0.79/1.18     [ =( 'range_of'( restrict( X, Y, 'universal_class' ) ), image( X, Y ) )
% 0.79/1.18     ],
% 0.79/1.18     [ =( union( X, singleton( X ) ), successor( X ) ) ],
% 0.79/1.18     [ subclass( 'successor_relation', 'cross_product'( 'universal_class', 
% 0.79/1.18    'universal_class' ) ) ],
% 0.79/1.18     [ ~( member( 'ordered_pair'( X, Y ), 'successor_relation' ) ), =( 
% 0.79/1.18    successor( X ), Y ) ],
% 0.79/1.18     [ ~( =( successor( X ), Y ) ), ~( member( 'ordered_pair'( X, Y ), 
% 0.79/1.18    'cross_product'( 'universal_class', 'universal_class' ) ) ), member( 
% 0.79/1.18    'ordered_pair'( X, Y ), 'successor_relation' ) ],
% 0.79/1.18     [ ~( inductive( X ) ), member( 'null_class', X ) ],
% 0.79/1.18     [ ~( inductive( X ) ), subclass( image( 'successor_relation', X ), X ) ]
% 0.79/1.18    ,
% 0.79/1.18     [ ~( member( 'null_class', X ) ), ~( subclass( image( 
% 0.79/1.18    'successor_relation', X ), X ) ), inductive( X ) ],
% 0.79/1.18     [ inductive( omega ) ],
% 0.79/1.18     [ ~( inductive( X ) ), subclass( omega, X ) ],
% 0.79/1.18     [ member( omega, 'universal_class' ) ],
% 0.79/1.18     [ =( 'domain_of'( restrict( 'element_relation', 'universal_class', X ) )
% 0.79/1.18    , 'sum_class'( X ) ) ],
% 0.79/1.18     [ ~( member( X, 'universal_class' ) ), member( 'sum_class'( X ), 
% 0.79/1.18    'universal_class' ) ],
% 0.79/1.18     [ =( complement( image( 'element_relation', complement( X ) ) ), 
% 0.79/1.18    'power_class'( X ) ) ],
% 0.79/1.18     [ ~( member( X, 'universal_class' ) ), member( 'power_class'( X ), 
% 0.79/1.18    'universal_class' ) ],
% 0.79/1.18     [ subclass( compose( X, Y ), 'cross_product'( 'universal_class', 
% 0.79/1.18    'universal_class' ) ) ],
% 0.79/1.18     [ ~( member( 'ordered_pair'( X, Y ), compose( Z, T ) ) ), member( Y, 
% 0.79/1.18    image( Z, image( T, singleton( X ) ) ) ) ],
% 0.79/1.18     [ ~( member( X, image( Y, image( Z, singleton( T ) ) ) ) ), ~( member( 
% 0.79/1.18    'ordered_pair'( T, X ), 'cross_product'( 'universal_class', 
% 0.79/1.18    'universal_class' ) ) ), member( 'ordered_pair'( T, X ), compose( Y, Z )
% 0.79/1.18     ) ],
% 0.79/1.18     [ ~( 'single_valued_class'( X ) ), subclass( compose( X, inverse( X ) )
% 0.79/1.18    , 'identity_relation' ) ],
% 0.79/1.18     [ ~( subclass( compose( X, inverse( X ) ), 'identity_relation' ) ), 
% 0.79/1.18    'single_valued_class'( X ) ],
% 0.79/1.18     [ ~( function( X ) ), subclass( X, 'cross_product'( 'universal_class', 
% 0.79/1.18    'universal_class' ) ) ],
% 0.79/1.18     [ ~( function( X ) ), subclass( compose( X, inverse( X ) ), 
% 0.79/1.18    'identity_relation' ) ],
% 0.79/1.18     [ ~( subclass( X, 'cross_product'( 'universal_class', 'universal_class'
% 0.79/1.18     ) ) ), ~( subclass( compose( X, inverse( X ) ), 'identity_relation' ) )
% 0.79/1.18    , function( X ) ],
% 0.79/1.18     [ ~( function( X ) ), ~( member( Y, 'universal_class' ) ), member( image( 
% 0.79/1.18    X, Y ), 'universal_class' ) ],
% 0.79/1.18     [ =( X, 'null_class' ), member( regular( X ), X ) ],
% 0.79/1.18     [ =( X, 'null_class' ), =( intersection( X, regular( X ) ), 'null_class'
% 0.79/1.18     ) ],
% 0.79/1.18     [ =( 'sum_class'( image( X, singleton( Y ) ) ), apply( X, Y ) ) ],
% 0.79/1.18     [ function( choice ) ],
% 0.79/1.18     [ ~( member( X, 'universal_class' ) ), =( X, 'null_class' ), member( 
% 0.79/1.18    apply( choice, X ), X ) ],
% 0.79/1.18     [ ~( 'one_to_one'( X ) ), function( X ) ],
% 0.79/1.18     [ ~( 'one_to_one'( X ) ), function( inverse( X ) ) ],
% 0.79/1.18     [ ~( function( inverse( X ) ) ), ~( function( X ) ), 'one_to_one'( X ) ]
% 0.79/1.18    ,
% 0.79/1.18     [ =( intersection( 'cross_product'( 'universal_class', 'universal_class'
% 0.79/1.18     ), intersection( 'cross_product'( 'universal_class', 'universal_class' )
% 0.79/1.18    , complement( compose( complement( 'element_relation' ), inverse( 
% 0.79/1.18    'element_relation' ) ) ) ) ), 'subset_relation' ) ],
% 0.79/1.18     [ =( intersection( inverse( 'subset_relation' ), 'subset_relation' ), 
% 0.79/1.18    'identity_relation' ) ],
% 0.79/1.18     [ =( complement( 'domain_of'( intersection( X, 'identity_relation' ) ) )
% 0.79/1.18    , diagonalise( X ) ) ],
% 0.79/1.18     [ =( intersection( 'domain_of'( X ), diagonalise( compose( inverse( 
% 0.79/1.18    'element_relation' ), X ) ) ), cantor( X ) ) ],
% 0.79/1.18     [ ~( operation( X ) ), function( X ) ],
% 0.79/1.18     [ ~( operation( X ) ), =( 'cross_product'( 'domain_of'( 'domain_of'( X )
% 0.79/1.18     ), 'domain_of'( 'domain_of'( X ) ) ), 'domain_of'( X ) ) ],
% 0.79/1.18     [ ~( operation( X ) ), subclass( 'range_of'( X ), 'domain_of'( 
% 1.27/1.64    'domain_of'( X ) ) ) ],
% 1.27/1.64     [ ~( function( X ) ), ~( =( 'cross_product'( 'domain_of'( 'domain_of'( X
% 1.27/1.64     ) ), 'domain_of'( 'domain_of'( X ) ) ), 'domain_of'( X ) ) ), ~( 
% 1.27/1.64    subclass( 'range_of'( X ), 'domain_of'( 'domain_of'( X ) ) ) ), operation( 
% 1.27/1.64    X ) ],
% 1.27/1.64     [ ~( compatible( X, Y, Z ) ), function( X ) ],
% 1.27/1.64     [ ~( compatible( X, Y, Z ) ), =( 'domain_of'( 'domain_of'( Y ) ), 
% 1.27/1.64    'domain_of'( X ) ) ],
% 1.27/1.64     [ ~( compatible( X, Y, Z ) ), subclass( 'range_of'( X ), 'domain_of'( 
% 1.27/1.64    'domain_of'( Z ) ) ) ],
% 1.27/1.64     [ ~( function( X ) ), ~( =( 'domain_of'( 'domain_of'( Y ) ), 'domain_of'( 
% 1.27/1.64    X ) ) ), ~( subclass( 'range_of'( X ), 'domain_of'( 'domain_of'( Z ) ) )
% 1.27/1.64     ), compatible( X, Y, Z ) ],
% 1.27/1.64     [ ~( homomorphism( X, Y, Z ) ), operation( Y ) ],
% 1.27/1.64     [ ~( homomorphism( X, Y, Z ) ), operation( Z ) ],
% 1.27/1.64     [ ~( homomorphism( X, Y, Z ) ), compatible( X, Y, Z ) ],
% 1.27/1.64     [ ~( homomorphism( X, Y, Z ) ), ~( member( 'ordered_pair'( T, U ), 
% 1.27/1.64    'domain_of'( Y ) ) ), =( apply( Z, 'ordered_pair'( apply( X, T ), apply( 
% 1.27/1.64    X, U ) ) ), apply( X, apply( Y, 'ordered_pair'( T, U ) ) ) ) ],
% 1.27/1.64     [ ~( operation( X ) ), ~( operation( Y ) ), ~( compatible( Z, X, Y ) ), 
% 1.27/1.64    member( 'ordered_pair'( 'not_homomorphism1'( Z, X, Y ), 
% 1.27/1.64    'not_homomorphism2'( Z, X, Y ) ), 'domain_of'( X ) ), homomorphism( Z, X
% 1.27/1.64    , Y ) ],
% 1.27/1.64     [ ~( operation( X ) ), ~( operation( Y ) ), ~( compatible( Z, X, Y ) ), 
% 1.27/1.64    ~( =( apply( Y, 'ordered_pair'( apply( Z, 'not_homomorphism1'( Z, X, Y )
% 1.27/1.64     ), apply( Z, 'not_homomorphism2'( Z, X, Y ) ) ) ), apply( Z, apply( X, 
% 1.27/1.64    'ordered_pair'( 'not_homomorphism1'( Z, X, Y ), 'not_homomorphism2'( Z, X
% 1.27/1.64    , Y ) ) ) ) ) ), homomorphism( Z, X, Y ) ],
% 1.27/1.64     [ ~( member( 'unordered_pair'( x, singleton( y ) ), 'ordered_pair'( x, y
% 1.27/1.64     ) ) ) ]
% 1.27/1.64  ] .
% 1.27/1.64  
% 1.27/1.64  
% 1.27/1.64  percentage equality = 0.214286, percentage horn = 0.913043
% 1.27/1.64  This is a problem with some equality
% 1.27/1.64  
% 1.27/1.64  
% 1.27/1.64  
% 1.27/1.64  Options Used:
% 1.27/1.64  
% 1.27/1.64  useres =            1
% 1.27/1.64  useparamod =        1
% 1.27/1.64  useeqrefl =         1
% 1.27/1.64  useeqfact =         1
% 1.27/1.64  usefactor =         1
% 1.27/1.64  usesimpsplitting =  0
% 1.27/1.64  usesimpdemod =      5
% 1.27/1.64  usesimpres =        3
% 1.27/1.64  
% 1.27/1.64  resimpinuse      =  1000
% 1.27/1.64  resimpclauses =     20000
% 1.27/1.64  substype =          eqrewr
% 1.27/1.64  backwardsubs =      1
% 1.27/1.64  selectoldest =      5
% 1.27/1.64  
% 1.27/1.64  litorderings [0] =  split
% 1.27/1.64  litorderings [1] =  extend the termordering, first sorting on arguments
% 1.27/1.64  
% 1.27/1.64  termordering =      kbo
% 1.27/1.64  
% 1.27/1.64  litapriori =        0
% 1.27/1.64  termapriori =       1
% 1.27/1.64  litaposteriori =    0
% 1.27/1.64  termaposteriori =   0
% 1.27/1.64  demodaposteriori =  0
% 1.27/1.64  ordereqreflfact =   0
% 1.27/1.64  
% 1.27/1.64  litselect =         negord
% 1.27/1.64  
% 1.27/1.64  maxweight =         15
% 1.27/1.64  maxdepth =          30000
% 1.27/1.64  maxlength =         115
% 1.27/1.64  maxnrvars =         195
% 1.27/1.64  excuselevel =       1
% 1.27/1.64  increasemaxweight = 1
% 1.27/1.64  
% 1.27/1.64  maxselected =       10000000
% 1.27/1.64  maxnrclauses =      10000000
% 1.27/1.64  
% 1.27/1.64  showgenerated =    0
% 1.27/1.64  showkept =         0
% 1.27/1.64  showselected =     0
% 1.27/1.64  showdeleted =      0
% 1.27/1.64  showresimp =       1
% 1.27/1.64  showstatus =       2000
% 1.27/1.64  
% 1.27/1.64  prologoutput =     1
% 1.27/1.64  nrgoals =          5000000
% 1.27/1.64  totalproof =       1
% 1.27/1.64  
% 1.27/1.64  Symbols occurring in the translation:
% 1.27/1.64  
% 1.27/1.64  {}  [0, 0]      (w:1, o:2, a:1, s:1, b:0), 
% 1.27/1.64  .  [1, 2]      (w:1, o:56, a:1, s:1, b:0), 
% 1.27/1.64  !  [4, 1]      (w:0, o:31, a:1, s:1, b:0), 
% 1.27/1.64  =  [13, 2]      (w:1, o:0, a:0, s:1, b:0), 
% 1.27/1.64  ==>  [14, 2]      (w:1, o:0, a:0, s:1, b:0), 
% 1.27/1.64  subclass  [41, 2]      (w:1, o:81, a:1, s:1, b:0), 
% 1.27/1.64  member  [43, 2]      (w:1, o:82, a:1, s:1, b:0), 
% 1.27/1.64  'not_subclass_element'  [44, 2]      (w:1, o:83, a:1, s:1, b:0), 
% 1.27/1.64  'universal_class'  [45, 0]      (w:1, o:21, a:1, s:1, b:0), 
% 1.27/1.64  'unordered_pair'  [46, 2]      (w:1, o:84, a:1, s:1, b:0), 
% 1.27/1.64  singleton  [47, 1]      (w:1, o:39, a:1, s:1, b:0), 
% 1.27/1.64  'ordered_pair'  [48, 2]      (w:1, o:85, a:1, s:1, b:0), 
% 1.27/1.64  'cross_product'  [50, 2]      (w:1, o:86, a:1, s:1, b:0), 
% 1.27/1.64  first  [52, 1]      (w:1, o:40, a:1, s:1, b:0), 
% 1.27/1.64  second  [53, 1]      (w:1, o:41, a:1, s:1, b:0), 
% 1.27/1.64  'element_relation'  [54, 0]      (w:1, o:25, a:1, s:1, b:0), 
% 1.27/1.64  intersection  [55, 2]      (w:1, o:88, a:1, s:1, b:0), 
% 1.27/1.64  complement  [56, 1]      (w:1, o:42, a:1, s:1, b:0), 
% 1.27/1.64  union  [57, 2]      (w:1, o:89, a:1, s:1, b:0), 
% 1.27/1.64  'symmetric_difference'  [58, 2]      (w:1, o:90, a:1, s:1, b:0), 
% 1.27/1.64  restrict  [60, 3]      (w:1, o:93, a:1, s:1, b:0), 
% 1.27/1.64  'null_class'  [61, 0]      (w:1, o:26, a:1, s:1, b:0), 
% 1.27/1.64  'domain_of'  [62, 1]      (w:1, o:44, a:1, s:1, b:0), 
% 1.27/1.64  rotate  [63, 1]      (w:1, o:36, a:1, s:1, b:0), 
% 1.27/1.64  flip  [65, 1]      (w:1, o:45, a:1, s:1, b:0), 
% 1.27/1.64  inverse  [66, 1]      (w:1, o:46, a:1, s:1, b:0), 
% 1.27/1.64  'range_of'  [67, 1]      (w:1, o:37, a:1, s:1, b:0), 
% 1.27/1.64  domain  [68, 3]      (w:1, o:95, a:1, s:1, b:0), 
% 1.27/1.64  range  [69, 3]      (w:1, o:96, a:1, s:1, b:0), 
% 1.27/1.64  image  [70, 2]      (w:1, o:87, a:1, s:1, b:0), 
% 1.27/1.64  successor  [71, 1]      (w:1, o:47, a:1, s:1, b:0), 
% 1.27/1.64  'successor_relation'  [72, 0]      (w:1, o:6, a:1, s:1, b:0), 
% 1.27/1.64  inductive  [73, 1]      (w:1, o:48, a:1, s:1, b:0), 
% 1.27/1.64  omega  [74, 0]      (w:1, o:9, a:1, s:1, b:0), 
% 1.27/1.64  'sum_class'  [75, 1]      (w:1, o:49, a:1, s:1, b:0), 
% 1.27/1.64  'power_class'  [76, 1]      (w:1, o:52, a:1, s:1, b:0), 
% 1.27/1.64  compose  [78, 2]      (w:1, o:91, a:1, s:1, b:0), 
% 1.27/1.64  'single_valued_class'  [79, 1]      (w:1, o:53, a:1, s:1, b:0), 
% 1.27/1.64  'identity_relation'  [80, 0]      (w:1, o:27, a:1, s:1, b:0), 
% 1.27/1.64  function  [82, 1]      (w:1, o:54, a:1, s:1, b:0), 
% 1.27/1.64  regular  [83, 1]      (w:1, o:38, a:1, s:1, b:0), 
% 1.27/1.64  apply  [84, 2]      (w:1, o:92, a:1, s:1, b:0), 
% 1.27/1.64  choice  [85, 0]      (w:1, o:28, a:1, s:1, b:0), 
% 1.27/1.64  'one_to_one'  [86, 1]      (w:1, o:50, a:1, s:1, b:0), 
% 1.27/1.64  'subset_relation'  [87, 0]      (w:1, o:5, a:1, s:1, b:0), 
% 1.27/1.64  diagonalise  [88, 1]      (w:1, o:55, a:1, s:1, b:0), 
% 1.27/1.64  cantor  [89, 1]      (w:1, o:43, a:1, s:1, b:0), 
% 1.27/1.64  operation  [90, 1]      (w:1, o:51, a:1, s:1, b:0), 
% 1.27/1.64  compatible  [94, 3]      (w:1, o:94, a:1, s:1, b:0), 
% 1.27/1.64  homomorphism  [95, 3]      (w:1, o:97, a:1, s:1, b:0), 
% 1.27/1.64  'not_homomorphism1'  [96, 3]      (w:1, o:98, a:1, s:1, b:0), 
% 1.27/1.64  'not_homomorphism2'  [97, 3]      (w:1, o:99, a:1, s:1, b:0), 
% 1.27/1.64  x  [98, 0]      (w:1, o:29, a:1, s:1, b:0), 
% 1.27/1.64  y  [99, 0]      (w:1, o:30, a:1, s:1, b:0).
% 1.27/1.64  
% 1.27/1.64  
% 1.27/1.64  Starting Search:
% 1.27/1.64  
% 1.27/1.64  Resimplifying inuse:
% 1.27/1.64  Done
% 1.27/1.64  
% 1.27/1.64  
% 1.27/1.64  Intermediate Status:
% 1.27/1.64  Generated:    5496
% 1.27/1.64  Kept:         2040
% 1.27/1.64  Inuse:        103
% 1.27/1.64  Deleted:      5
% 1.27/1.64  Deletedinuse: 2
% 1.27/1.64  
% 1.27/1.64  Resimplifying inuse:
% 1.27/1.64  Done
% 1.27/1.64  
% 1.27/1.64  Resimplifying inuse:
% 1.27/1.64  Done
% 1.27/1.64  
% 1.27/1.64  
% 1.27/1.64  Intermediate Status:
% 1.27/1.64  Generated:    10252
% 1.27/1.64  Kept:         4048
% 1.27/1.64  Inuse:        188
% 1.27/1.64  Deleted:      23
% 1.27/1.64  Deletedinuse: 14
% 1.27/1.64  
% 1.27/1.64  Resimplifying inuse:
% 1.27/1.64  Done
% 1.27/1.64  
% 1.27/1.64  Resimplifying inuse:
% 1.27/1.64  Done
% 1.27/1.64  
% 1.27/1.64  
% 1.27/1.64  Intermediate Status:
% 1.27/1.64  Generated:    14125
% 1.27/1.64  Kept:         6080
% 1.27/1.64  Inuse:        239
% 1.27/1.64  Deleted:      27
% 1.27/1.64  Deletedinuse: 15
% 1.27/1.64  
% 1.27/1.64  Resimplifying inuse:
% 1.27/1.64  Done
% 1.27/1.64  
% 1.27/1.64  Resimplifying inuse:
% 1.27/1.64  Done
% 1.27/1.64  
% 1.27/1.64  
% 1.27/1.64  Intermediate Status:
% 1.27/1.64  Generated:    18823
% 1.27/1.64  Kept:         8089
% 1.27/1.64  Inuse:        291
% 1.27/1.64  Deleted:      84
% 1.27/1.64  Deletedinuse: 71
% 1.27/1.64  
% 1.27/1.64  Resimplifying inuse:
% 1.27/1.64  Done
% 1.27/1.64  
% 1.27/1.64  Resimplifying inuse:
% 1.27/1.64  Done
% 1.27/1.64  
% 1.27/1.64  
% 1.27/1.64  Bliksems!, er is een bewijs:
% 1.27/1.64  % SZS status Unsatisfiable
% 1.27/1.64  % SZS output start Refutation
% 1.27/1.64  
% 1.27/1.64  clause( 8, [ ~( member( X, 'universal_class' ) ), member( X, 
% 1.27/1.64    'unordered_pair'( Y, X ) ) ] )
% 1.27/1.64  .
% 1.27/1.64  clause( 9, [ member( 'unordered_pair'( X, Y ), 'universal_class' ) ] )
% 1.27/1.64  .
% 1.27/1.64  clause( 11, [ =( 'unordered_pair'( singleton( X ), 'unordered_pair'( X, 
% 1.27/1.64    singleton( Y ) ) ), 'ordered_pair'( X, Y ) ) ] )
% 1.27/1.64  .
% 1.27/1.64  clause( 90, [ ~( member( 'unordered_pair'( x, singleton( y ) ), 
% 1.27/1.64    'ordered_pair'( x, y ) ) ) ] )
% 1.27/1.64  .
% 1.27/1.64  clause( 580, [ member( 'unordered_pair'( X, singleton( Y ) ), 
% 1.27/1.64    'ordered_pair'( X, Y ) ) ] )
% 1.27/1.64  .
% 1.27/1.64  clause( 9767, [] )
% 1.27/1.64  .
% 1.27/1.64  
% 1.27/1.64  
% 1.27/1.64  % SZS output end Refutation
% 1.27/1.64  found a proof!
% 1.27/1.64  
% 1.27/1.64  % ABCDEFGHIJKLMNOPQRSTUVWXYZ
% 1.27/1.64  
% 1.27/1.64  initialclauses(
% 1.27/1.64  [ clause( 9769, [ ~( subclass( X, Y ) ), ~( member( Z, X ) ), member( Z, Y
% 1.27/1.64     ) ] )
% 1.27/1.64  , clause( 9770, [ member( 'not_subclass_element'( X, Y ), X ), subclass( X
% 1.27/1.64    , Y ) ] )
% 1.27/1.64  , clause( 9771, [ ~( member( 'not_subclass_element'( X, Y ), Y ) ), 
% 1.27/1.64    subclass( X, Y ) ] )
% 1.27/1.64  , clause( 9772, [ subclass( X, 'universal_class' ) ] )
% 1.27/1.64  , clause( 9773, [ ~( =( X, Y ) ), subclass( X, Y ) ] )
% 1.27/1.64  , clause( 9774, [ ~( =( X, Y ) ), subclass( Y, X ) ] )
% 1.27/1.64  , clause( 9775, [ ~( subclass( X, Y ) ), ~( subclass( Y, X ) ), =( X, Y ) ]
% 1.27/1.64     )
% 1.27/1.64  , clause( 9776, [ ~( member( X, 'unordered_pair'( Y, Z ) ) ), =( X, Y ), 
% 1.27/1.64    =( X, Z ) ] )
% 1.27/1.64  , clause( 9777, [ ~( member( X, 'universal_class' ) ), member( X, 
% 1.27/1.64    'unordered_pair'( X, Y ) ) ] )
% 1.27/1.64  , clause( 9778, [ ~( member( X, 'universal_class' ) ), member( X, 
% 1.27/1.64    'unordered_pair'( Y, X ) ) ] )
% 1.27/1.64  , clause( 9779, [ member( 'unordered_pair'( X, Y ), 'universal_class' ) ]
% 1.27/1.64     )
% 1.27/1.64  , clause( 9780, [ =( 'unordered_pair'( X, X ), singleton( X ) ) ] )
% 1.27/1.64  , clause( 9781, [ =( 'unordered_pair'( singleton( X ), 'unordered_pair'( X
% 1.27/1.64    , singleton( Y ) ) ), 'ordered_pair'( X, Y ) ) ] )
% 1.27/1.64  , clause( 9782, [ ~( member( 'ordered_pair'( X, Y ), 'cross_product'( Z, T
% 1.27/1.64     ) ) ), member( X, Z ) ] )
% 1.27/1.64  , clause( 9783, [ ~( member( 'ordered_pair'( X, Y ), 'cross_product'( Z, T
% 1.27/1.64     ) ) ), member( Y, T ) ] )
% 1.27/1.64  , clause( 9784, [ ~( member( X, Y ) ), ~( member( Z, T ) ), member( 
% 1.27/1.64    'ordered_pair'( X, Z ), 'cross_product'( Y, T ) ) ] )
% 1.27/1.64  , clause( 9785, [ ~( member( X, 'cross_product'( Y, Z ) ) ), =( 
% 1.27/1.64    'ordered_pair'( first( X ), second( X ) ), X ) ] )
% 1.27/1.64  , clause( 9786, [ subclass( 'element_relation', 'cross_product'( 
% 1.27/1.64    'universal_class', 'universal_class' ) ) ] )
% 1.27/1.64  , clause( 9787, [ ~( member( 'ordered_pair'( X, Y ), 'element_relation' ) )
% 1.27/1.64    , member( X, Y ) ] )
% 1.27/1.64  , clause( 9788, [ ~( member( 'ordered_pair'( X, Y ), 'cross_product'( 
% 1.27/1.64    'universal_class', 'universal_class' ) ) ), ~( member( X, Y ) ), member( 
% 1.27/1.64    'ordered_pair'( X, Y ), 'element_relation' ) ] )
% 1.27/1.64  , clause( 9789, [ ~( member( X, intersection( Y, Z ) ) ), member( X, Y ) ]
% 1.27/1.64     )
% 1.27/1.64  , clause( 9790, [ ~( member( X, intersection( Y, Z ) ) ), member( X, Z ) ]
% 1.27/1.64     )
% 1.27/1.64  , clause( 9791, [ ~( member( X, Y ) ), ~( member( X, Z ) ), member( X, 
% 1.27/1.64    intersection( Y, Z ) ) ] )
% 1.27/1.64  , clause( 9792, [ ~( member( X, complement( Y ) ) ), ~( member( X, Y ) ) ]
% 1.27/1.64     )
% 1.27/1.64  , clause( 9793, [ ~( member( X, 'universal_class' ) ), member( X, 
% 1.27/1.64    complement( Y ) ), member( X, Y ) ] )
% 1.27/1.64  , clause( 9794, [ =( complement( intersection( complement( X ), complement( 
% 1.27/1.64    Y ) ) ), union( X, Y ) ) ] )
% 1.27/1.64  , clause( 9795, [ =( intersection( complement( intersection( X, Y ) ), 
% 1.27/1.64    complement( intersection( complement( X ), complement( Y ) ) ) ), 
% 1.27/1.64    'symmetric_difference'( X, Y ) ) ] )
% 1.27/1.64  , clause( 9796, [ =( intersection( X, 'cross_product'( Y, Z ) ), restrict( 
% 1.27/1.64    X, Y, Z ) ) ] )
% 1.27/1.64  , clause( 9797, [ =( intersection( 'cross_product'( X, Y ), Z ), restrict( 
% 1.27/1.64    Z, X, Y ) ) ] )
% 1.27/1.64  , clause( 9798, [ ~( =( restrict( X, singleton( Y ), 'universal_class' ), 
% 1.27/1.64    'null_class' ) ), ~( member( Y, 'domain_of'( X ) ) ) ] )
% 1.27/1.64  , clause( 9799, [ ~( member( X, 'universal_class' ) ), =( restrict( Y, 
% 1.27/1.64    singleton( X ), 'universal_class' ), 'null_class' ), member( X, 
% 1.27/1.64    'domain_of'( Y ) ) ] )
% 1.27/1.64  , clause( 9800, [ subclass( rotate( X ), 'cross_product'( 'cross_product'( 
% 1.27/1.64    'universal_class', 'universal_class' ), 'universal_class' ) ) ] )
% 1.27/1.64  , clause( 9801, [ ~( member( 'ordered_pair'( 'ordered_pair'( X, Y ), Z ), 
% 1.27/1.64    rotate( T ) ) ), member( 'ordered_pair'( 'ordered_pair'( Y, Z ), X ), T )
% 1.27/1.64     ] )
% 1.27/1.64  , clause( 9802, [ ~( member( 'ordered_pair'( 'ordered_pair'( X, Y ), Z ), T
% 1.27/1.64     ) ), ~( member( 'ordered_pair'( 'ordered_pair'( Z, X ), Y ), 
% 1.27/1.64    'cross_product'( 'cross_product'( 'universal_class', 'universal_class' )
% 1.27/1.64    , 'universal_class' ) ) ), member( 'ordered_pair'( 'ordered_pair'( Z, X )
% 1.27/1.64    , Y ), rotate( T ) ) ] )
% 1.27/1.64  , clause( 9803, [ subclass( flip( X ), 'cross_product'( 'cross_product'( 
% 1.27/1.64    'universal_class', 'universal_class' ), 'universal_class' ) ) ] )
% 1.27/1.64  , clause( 9804, [ ~( member( 'ordered_pair'( 'ordered_pair'( X, Y ), Z ), 
% 1.27/1.64    flip( T ) ) ), member( 'ordered_pair'( 'ordered_pair'( Y, X ), Z ), T ) ]
% 1.27/1.64     )
% 1.27/1.64  , clause( 9805, [ ~( member( 'ordered_pair'( 'ordered_pair'( X, Y ), Z ), T
% 1.27/1.64     ) ), ~( member( 'ordered_pair'( 'ordered_pair'( Y, X ), Z ), 
% 1.27/1.64    'cross_product'( 'cross_product'( 'universal_class', 'universal_class' )
% 1.27/1.64    , 'universal_class' ) ) ), member( 'ordered_pair'( 'ordered_pair'( Y, X )
% 1.27/1.64    , Z ), flip( T ) ) ] )
% 1.27/1.64  , clause( 9806, [ =( 'domain_of'( flip( 'cross_product'( X, 
% 1.27/1.64    'universal_class' ) ) ), inverse( X ) ) ] )
% 1.27/1.64  , clause( 9807, [ =( 'domain_of'( inverse( X ) ), 'range_of'( X ) ) ] )
% 1.27/1.64  , clause( 9808, [ =( first( 'not_subclass_element'( restrict( X, Y, 
% 1.27/1.64    singleton( Z ) ), 'null_class' ) ), domain( X, Y, Z ) ) ] )
% 1.27/1.64  , clause( 9809, [ =( second( 'not_subclass_element'( restrict( X, singleton( 
% 1.27/1.64    Y ), Z ), 'null_class' ) ), range( X, Y, Z ) ) ] )
% 1.27/1.64  , clause( 9810, [ =( 'range_of'( restrict( X, Y, 'universal_class' ) ), 
% 1.27/1.64    image( X, Y ) ) ] )
% 1.27/1.64  , clause( 9811, [ =( union( X, singleton( X ) ), successor( X ) ) ] )
% 1.27/1.64  , clause( 9812, [ subclass( 'successor_relation', 'cross_product'( 
% 1.27/1.64    'universal_class', 'universal_class' ) ) ] )
% 1.27/1.64  , clause( 9813, [ ~( member( 'ordered_pair'( X, Y ), 'successor_relation' )
% 1.27/1.64     ), =( successor( X ), Y ) ] )
% 1.27/1.64  , clause( 9814, [ ~( =( successor( X ), Y ) ), ~( member( 'ordered_pair'( X
% 1.27/1.64    , Y ), 'cross_product'( 'universal_class', 'universal_class' ) ) ), 
% 1.27/1.64    member( 'ordered_pair'( X, Y ), 'successor_relation' ) ] )
% 1.27/1.64  , clause( 9815, [ ~( inductive( X ) ), member( 'null_class', X ) ] )
% 1.27/1.64  , clause( 9816, [ ~( inductive( X ) ), subclass( image( 
% 1.27/1.64    'successor_relation', X ), X ) ] )
% 1.27/1.64  , clause( 9817, [ ~( member( 'null_class', X ) ), ~( subclass( image( 
% 1.27/1.64    'successor_relation', X ), X ) ), inductive( X ) ] )
% 1.27/1.64  , clause( 9818, [ inductive( omega ) ] )
% 1.27/1.64  , clause( 9819, [ ~( inductive( X ) ), subclass( omega, X ) ] )
% 1.27/1.64  , clause( 9820, [ member( omega, 'universal_class' ) ] )
% 1.27/1.64  , clause( 9821, [ =( 'domain_of'( restrict( 'element_relation', 
% 1.27/1.64    'universal_class', X ) ), 'sum_class'( X ) ) ] )
% 1.27/1.64  , clause( 9822, [ ~( member( X, 'universal_class' ) ), member( 'sum_class'( 
% 1.27/1.64    X ), 'universal_class' ) ] )
% 1.27/1.64  , clause( 9823, [ =( complement( image( 'element_relation', complement( X )
% 1.27/1.64     ) ), 'power_class'( X ) ) ] )
% 1.27/1.64  , clause( 9824, [ ~( member( X, 'universal_class' ) ), member( 
% 1.27/1.64    'power_class'( X ), 'universal_class' ) ] )
% 1.27/1.64  , clause( 9825, [ subclass( compose( X, Y ), 'cross_product'( 
% 1.27/1.64    'universal_class', 'universal_class' ) ) ] )
% 1.27/1.64  , clause( 9826, [ ~( member( 'ordered_pair'( X, Y ), compose( Z, T ) ) ), 
% 1.27/1.64    member( Y, image( Z, image( T, singleton( X ) ) ) ) ] )
% 1.27/1.64  , clause( 9827, [ ~( member( X, image( Y, image( Z, singleton( T ) ) ) ) )
% 1.27/1.64    , ~( member( 'ordered_pair'( T, X ), 'cross_product'( 'universal_class', 
% 1.27/1.64    'universal_class' ) ) ), member( 'ordered_pair'( T, X ), compose( Y, Z )
% 1.27/1.64     ) ] )
% 1.27/1.64  , clause( 9828, [ ~( 'single_valued_class'( X ) ), subclass( compose( X, 
% 1.27/1.64    inverse( X ) ), 'identity_relation' ) ] )
% 1.27/1.64  , clause( 9829, [ ~( subclass( compose( X, inverse( X ) ), 
% 1.27/1.64    'identity_relation' ) ), 'single_valued_class'( X ) ] )
% 1.27/1.64  , clause( 9830, [ ~( function( X ) ), subclass( X, 'cross_product'( 
% 1.27/1.64    'universal_class', 'universal_class' ) ) ] )
% 1.27/1.64  , clause( 9831, [ ~( function( X ) ), subclass( compose( X, inverse( X ) )
% 1.27/1.64    , 'identity_relation' ) ] )
% 1.27/1.64  , clause( 9832, [ ~( subclass( X, 'cross_product'( 'universal_class', 
% 1.27/1.64    'universal_class' ) ) ), ~( subclass( compose( X, inverse( X ) ), 
% 1.27/1.64    'identity_relation' ) ), function( X ) ] )
% 1.27/1.64  , clause( 9833, [ ~( function( X ) ), ~( member( Y, 'universal_class' ) ), 
% 1.27/1.64    member( image( X, Y ), 'universal_class' ) ] )
% 1.27/1.64  , clause( 9834, [ =( X, 'null_class' ), member( regular( X ), X ) ] )
% 1.27/1.64  , clause( 9835, [ =( X, 'null_class' ), =( intersection( X, regular( X ) )
% 1.27/1.64    , 'null_class' ) ] )
% 1.27/1.64  , clause( 9836, [ =( 'sum_class'( image( X, singleton( Y ) ) ), apply( X, Y
% 1.27/1.64     ) ) ] )
% 1.27/1.64  , clause( 9837, [ function( choice ) ] )
% 1.27/1.64  , clause( 9838, [ ~( member( X, 'universal_class' ) ), =( X, 'null_class' )
% 1.27/1.64    , member( apply( choice, X ), X ) ] )
% 1.27/1.64  , clause( 9839, [ ~( 'one_to_one'( X ) ), function( X ) ] )
% 1.27/1.64  , clause( 9840, [ ~( 'one_to_one'( X ) ), function( inverse( X ) ) ] )
% 1.27/1.64  , clause( 9841, [ ~( function( inverse( X ) ) ), ~( function( X ) ), 
% 1.27/1.64    'one_to_one'( X ) ] )
% 1.27/1.64  , clause( 9842, [ =( intersection( 'cross_product'( 'universal_class', 
% 1.27/1.64    'universal_class' ), intersection( 'cross_product'( 'universal_class', 
% 1.27/1.64    'universal_class' ), complement( compose( complement( 'element_relation'
% 1.27/1.64     ), inverse( 'element_relation' ) ) ) ) ), 'subset_relation' ) ] )
% 1.27/1.64  , clause( 9843, [ =( intersection( inverse( 'subset_relation' ), 
% 1.27/1.64    'subset_relation' ), 'identity_relation' ) ] )
% 1.27/1.64  , clause( 9844, [ =( complement( 'domain_of'( intersection( X, 
% 1.27/1.64    'identity_relation' ) ) ), diagonalise( X ) ) ] )
% 1.27/1.64  , clause( 9845, [ =( intersection( 'domain_of'( X ), diagonalise( compose( 
% 1.27/1.64    inverse( 'element_relation' ), X ) ) ), cantor( X ) ) ] )
% 1.27/1.64  , clause( 9846, [ ~( operation( X ) ), function( X ) ] )
% 1.27/1.64  , clause( 9847, [ ~( operation( X ) ), =( 'cross_product'( 'domain_of'( 
% 1.27/1.64    'domain_of'( X ) ), 'domain_of'( 'domain_of'( X ) ) ), 'domain_of'( X ) )
% 1.27/1.64     ] )
% 1.27/1.64  , clause( 9848, [ ~( operation( X ) ), subclass( 'range_of'( X ), 
% 1.27/1.64    'domain_of'( 'domain_of'( X ) ) ) ] )
% 1.27/1.64  , clause( 9849, [ ~( function( X ) ), ~( =( 'cross_product'( 'domain_of'( 
% 1.27/1.64    'domain_of'( X ) ), 'domain_of'( 'domain_of'( X ) ) ), 'domain_of'( X ) )
% 1.27/1.64     ), ~( subclass( 'range_of'( X ), 'domain_of'( 'domain_of'( X ) ) ) ), 
% 1.27/1.64    operation( X ) ] )
% 1.27/1.64  , clause( 9850, [ ~( compatible( X, Y, Z ) ), function( X ) ] )
% 1.27/1.64  , clause( 9851, [ ~( compatible( X, Y, Z ) ), =( 'domain_of'( 'domain_of'( 
% 1.27/1.64    Y ) ), 'domain_of'( X ) ) ] )
% 1.27/1.64  , clause( 9852, [ ~( compatible( X, Y, Z ) ), subclass( 'range_of'( X ), 
% 1.27/1.64    'domain_of'( 'domain_of'( Z ) ) ) ] )
% 1.27/1.64  , clause( 9853, [ ~( function( X ) ), ~( =( 'domain_of'( 'domain_of'( Y ) )
% 1.27/1.64    , 'domain_of'( X ) ) ), ~( subclass( 'range_of'( X ), 'domain_of'( 
% 1.27/1.64    'domain_of'( Z ) ) ) ), compatible( X, Y, Z ) ] )
% 1.27/1.64  , clause( 9854, [ ~( homomorphism( X, Y, Z ) ), operation( Y ) ] )
% 1.27/1.64  , clause( 9855, [ ~( homomorphism( X, Y, Z ) ), operation( Z ) ] )
% 1.27/1.64  , clause( 9856, [ ~( homomorphism( X, Y, Z ) ), compatible( X, Y, Z ) ] )
% 1.27/1.64  , clause( 9857, [ ~( homomorphism( X, Y, Z ) ), ~( member( 'ordered_pair'( 
% 1.27/1.64    T, U ), 'domain_of'( Y ) ) ), =( apply( Z, 'ordered_pair'( apply( X, T )
% 1.27/1.64    , apply( X, U ) ) ), apply( X, apply( Y, 'ordered_pair'( T, U ) ) ) ) ]
% 1.27/1.64     )
% 1.27/1.64  , clause( 9858, [ ~( operation( X ) ), ~( operation( Y ) ), ~( compatible( 
% 1.27/1.64    Z, X, Y ) ), member( 'ordered_pair'( 'not_homomorphism1'( Z, X, Y ), 
% 1.27/1.64    'not_homomorphism2'( Z, X, Y ) ), 'domain_of'( X ) ), homomorphism( Z, X
% 1.27/1.64    , Y ) ] )
% 1.27/1.64  , clause( 9859, [ ~( operation( X ) ), ~( operation( Y ) ), ~( compatible( 
% 1.27/1.64    Z, X, Y ) ), ~( =( apply( Y, 'ordered_pair'( apply( Z, 
% 1.27/1.64    'not_homomorphism1'( Z, X, Y ) ), apply( Z, 'not_homomorphism2'( Z, X, Y
% 1.27/1.64     ) ) ) ), apply( Z, apply( X, 'ordered_pair'( 'not_homomorphism1'( Z, X, 
% 1.27/1.64    Y ), 'not_homomorphism2'( Z, X, Y ) ) ) ) ) ), homomorphism( Z, X, Y ) ]
% 1.27/1.64     )
% 1.27/1.64  , clause( 9860, [ ~( member( 'unordered_pair'( x, singleton( y ) ), 
% 1.27/1.64    'ordered_pair'( x, y ) ) ) ] )
% 1.27/1.64  ] ).
% 1.27/1.64  
% 1.27/1.64  
% 1.27/1.64  
% 1.27/1.64  subsumption(
% 1.27/1.64  clause( 8, [ ~( member( X, 'universal_class' ) ), member( X, 
% 1.27/1.64    'unordered_pair'( Y, X ) ) ] )
% 1.27/1.64  , clause( 9778, [ ~( member( X, 'universal_class' ) ), member( X, 
% 1.27/1.64    'unordered_pair'( Y, X ) ) ] )
% 1.27/1.64  , substitution( 0, [ :=( X, X ), :=( Y, Y )] ), permutation( 0, [ ==>( 0, 0
% 1.27/1.64     ), ==>( 1, 1 )] ) ).
% 1.27/1.64  
% 1.27/1.64  
% 1.27/1.64  subsumption(
% 1.27/1.64  clause( 9, [ member( 'unordered_pair'( X, Y ), 'universal_class' ) ] )
% 1.27/1.64  , clause( 9779, [ member( 'unordered_pair'( X, Y ), 'universal_class' ) ]
% 1.27/1.64     )
% 1.27/1.64  , substitution( 0, [ :=( X, X ), :=( Y, Y )] ), permutation( 0, [ ==>( 0, 0
% 1.27/1.64     )] ) ).
% 1.27/1.64  
% 1.27/1.64  
% 1.27/1.64  subsumption(
% 1.27/1.64  clause( 11, [ =( 'unordered_pair'( singleton( X ), 'unordered_pair'( X, 
% 1.27/1.64    singleton( Y ) ) ), 'ordered_pair'( X, Y ) ) ] )
% 1.27/1.64  , clause( 9781, [ =( 'unordered_pair'( singleton( X ), 'unordered_pair'( X
% 1.27/1.64    , singleton( Y ) ) ), 'ordered_pair'( X, Y ) ) ] )
% 1.27/1.64  , substitution( 0, [ :=( X, X ), :=( Y, Y )] ), permutation( 0, [ ==>( 0, 0
% 1.27/1.64     )] ) ).
% 1.27/1.64  
% 1.27/1.64  
% 1.27/1.64  subsumption(
% 1.27/1.64  clause( 90, [ ~( member( 'unordered_pair'( x, singleton( y ) ), 
% 1.27/1.64    'ordered_pair'( x, y ) ) ) ] )
% 1.27/1.64  , clause( 9860, [ ~( member( 'unordered_pair'( x, singleton( y ) ), 
% 1.27/1.64    'ordered_pair'( x, y ) ) ) ] )
% 1.27/1.64  , substitution( 0, [] ), permutation( 0, [ ==>( 0, 0 )] ) ).
% 1.27/1.64  
% 1.27/1.64  
% 1.27/1.64  paramod(
% 1.27/1.64  clause( 9938, [ member( 'unordered_pair'( X, singleton( Y ) ), 
% 1.27/1.64    'ordered_pair'( X, Y ) ), ~( member( 'unordered_pair'( X, singleton( Y )
% 1.27/1.64     ), 'universal_class' ) ) ] )
% 1.27/1.64  , clause( 11, [ =( 'unordered_pair'( singleton( X ), 'unordered_pair'( X, 
% 1.27/1.64    singleton( Y ) ) ), 'ordered_pair'( X, Y ) ) ] )
% 1.27/1.64  , 0, clause( 8, [ ~( member( X, 'universal_class' ) ), member( X, 
% 1.27/1.64    'unordered_pair'( Y, X ) ) ] )
% 1.27/1.64  , 1, 5, substitution( 0, [ :=( X, X ), :=( Y, Y )] ), substitution( 1, [ 
% 1.27/1.64    :=( X, 'unordered_pair'( X, singleton( Y ) ) ), :=( Y, singleton( X ) )] )
% 1.27/1.64    ).
% 1.27/1.64  
% 1.27/1.64  
% 1.27/1.64  resolution(
% 1.27/1.64  clause( 9939, [ member( 'unordered_pair'( X, singleton( Y ) ), 
% 1.27/1.64    'ordered_pair'( X, Y ) ) ] )
% 1.27/1.64  , clause( 9938, [ member( 'unordered_pair'( X, singleton( Y ) ), 
% 1.27/1.64    'ordered_pair'( X, Y ) ), ~( member( 'unordered_pair'( X, singleton( Y )
% 1.27/1.64     ), 'universal_class' ) ) ] )
% 1.27/1.64  , 1, clause( 9, [ member( 'unordered_pair'( X, Y ), 'universal_class' ) ]
% 1.27/1.64     )
% 1.27/1.64  , 0, substitution( 0, [ :=( X, X ), :=( Y, Y )] ), substitution( 1, [ :=( X
% 1.27/1.64    , X ), :=( Y, singleton( Y ) )] )).
% 1.27/1.64  
% 1.27/1.64  
% 1.27/1.64  subsumption(
% 1.27/1.64  clause( 580, [ member( 'unordered_pair'( X, singleton( Y ) ), 
% 1.27/1.64    'ordered_pair'( X, Y ) ) ] )
% 1.27/1.64  , clause( 9939, [ member( 'unordered_pair'( X, singleton( Y ) ), 
% 1.27/1.64    'ordered_pair'( X, Y ) ) ] )
% 1.27/1.64  , substitution( 0, [ :=( X, X ), :=( Y, Y )] ), permutation( 0, [ ==>( 0, 0
% 1.27/1.64     )] ) ).
% 1.27/1.64  
% 1.27/1.64  
% 1.27/1.64  resolution(
% 1.27/1.64  clause( 9940, [] )
% 1.27/1.64  , clause( 90, [ ~( member( 'unordered_pair'( x, singleton( y ) ), 
% 1.27/1.64    'ordered_pair'( x, y ) ) ) ] )
% 1.27/1.64  , 0, clause( 580, [ member( 'unordered_pair'( X, singleton( Y ) ), 
% 1.27/1.64    'ordered_pair'( X, Y ) ) ] )
% 1.27/1.64  , 0, substitution( 0, [] ), substitution( 1, [ :=( X, x ), :=( Y, y )] )
% 1.27/1.64    ).
% 1.27/1.64  
% 1.27/1.64  
% 1.27/1.64  subsumption(
% 1.27/1.64  clause( 9767, [] )
% 1.27/1.64  , clause( 9940, [] )
% 1.27/1.64  , substitution( 0, [] ), permutation( 0, [] ) ).
% 1.27/1.64  
% 1.27/1.64  
% 1.27/1.64  end.
% 1.27/1.64  
% 1.27/1.64  % ABCDEFGHIJKLMNOPQRSTUVWXYZ
% 1.27/1.64  
% 1.27/1.64  Memory use:
% 1.27/1.64  
% 1.27/1.64  space for terms:        150722
% 1.27/1.64  space for clauses:      463325
% 1.27/1.64  
% 1.27/1.64  
% 1.27/1.64  clauses generated:      23329
% 1.27/1.64  clauses kept:           9768
% 1.27/1.64  clauses selected:       365
% 1.27/1.64  clauses deleted:        96
% 1.27/1.64  clauses inuse deleted:  80
% 1.27/1.64  
% 1.27/1.64  subsentry:          50586
% 1.27/1.64  literals s-matched: 39508
% 1.27/1.64  literals matched:   38896
% 1.27/1.64  full subsumption:   17724
% 1.27/1.64  
% 1.27/1.64  checksum:           -1242298342
% 1.27/1.64  
% 1.27/1.64  
% 1.27/1.64  Bliksem ended
%------------------------------------------------------------------------------