TSTP Solution File: SET096-6 by Bliksem---1.12

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : Bliksem---1.12
% Problem  : SET096-6 : TPTP v8.1.0. Bugfixed v2.1.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : bliksem %s

% Computer : n003.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 22:47:00 EDT 2022

% Result   : Unsatisfiable 3.44s 3.82s
% Output   : Refutation 3.44s
% Verified : 
% SZS Type : -

% Comments : 
%------------------------------------------------------------------------------
%----WARNING: Could not form TPTP format derivation
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.09/0.10  % Problem  : SET096-6 : TPTP v8.1.0. Bugfixed v2.1.0.
% 0.09/0.11  % Command  : bliksem %s
% 0.10/0.31  % Computer : n003.cluster.edu
% 0.10/0.31  % Model    : x86_64 x86_64
% 0.10/0.31  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.10/0.31  % Memory   : 8042.1875MB
% 0.10/0.31  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.15/0.31  % CPULimit : 300
% 0.15/0.31  % DateTime : Sat Jul  9 23:21:29 EDT 2022
% 0.15/0.31  % CPUTime  : 
% 0.62/1.02  *** allocated 10000 integers for termspace/termends
% 0.62/1.02  *** allocated 10000 integers for clauses
% 0.62/1.02  *** allocated 10000 integers for justifications
% 0.62/1.02  Bliksem 1.12
% 0.62/1.02  
% 0.62/1.02  
% 0.62/1.02  Automatic Strategy Selection
% 0.62/1.02  
% 0.62/1.02  Clauses:
% 0.62/1.02  [
% 0.62/1.02     [ ~( subclass( X, Y ) ), ~( member( Z, X ) ), member( Z, Y ) ],
% 0.62/1.02     [ member( 'not_subclass_element'( X, Y ), X ), subclass( X, Y ) ],
% 0.62/1.02     [ ~( member( 'not_subclass_element'( X, Y ), Y ) ), subclass( X, Y ) ]
% 0.62/1.02    ,
% 0.62/1.02     [ subclass( X, 'universal_class' ) ],
% 0.62/1.02     [ ~( =( X, Y ) ), subclass( X, Y ) ],
% 0.62/1.02     [ ~( =( X, Y ) ), subclass( Y, X ) ],
% 0.62/1.02     [ ~( subclass( X, Y ) ), ~( subclass( Y, X ) ), =( X, Y ) ],
% 0.62/1.02     [ ~( member( X, 'unordered_pair'( Y, Z ) ) ), =( X, Y ), =( X, Z ) ]
% 0.62/1.02    ,
% 0.62/1.02     [ ~( member( X, 'universal_class' ) ), member( X, 'unordered_pair'( X, Y
% 0.62/1.02     ) ) ],
% 0.62/1.02     [ ~( member( X, 'universal_class' ) ), member( X, 'unordered_pair'( Y, X
% 0.62/1.02     ) ) ],
% 0.62/1.02     [ member( 'unordered_pair'( X, Y ), 'universal_class' ) ],
% 0.62/1.02     [ =( 'unordered_pair'( X, X ), singleton( X ) ) ],
% 0.62/1.02     [ =( 'unordered_pair'( singleton( X ), 'unordered_pair'( X, singleton( Y
% 0.62/1.02     ) ) ), 'ordered_pair'( X, Y ) ) ],
% 0.62/1.02     [ ~( member( 'ordered_pair'( X, Y ), 'cross_product'( Z, T ) ) ), member( 
% 0.62/1.02    X, Z ) ],
% 0.62/1.02     [ ~( member( 'ordered_pair'( X, Y ), 'cross_product'( Z, T ) ) ), member( 
% 0.62/1.02    Y, T ) ],
% 0.62/1.02     [ ~( member( X, Y ) ), ~( member( Z, T ) ), member( 'ordered_pair'( X, Z
% 0.62/1.02     ), 'cross_product'( Y, T ) ) ],
% 0.62/1.02     [ ~( member( X, 'cross_product'( Y, Z ) ) ), =( 'ordered_pair'( first( X
% 0.62/1.02     ), second( X ) ), X ) ],
% 0.62/1.02     [ subclass( 'element_relation', 'cross_product'( 'universal_class', 
% 0.62/1.02    'universal_class' ) ) ],
% 0.62/1.02     [ ~( member( 'ordered_pair'( X, Y ), 'element_relation' ) ), member( X, 
% 0.62/1.02    Y ) ],
% 0.62/1.02     [ ~( member( 'ordered_pair'( X, Y ), 'cross_product'( 'universal_class'
% 0.62/1.02    , 'universal_class' ) ) ), ~( member( X, Y ) ), member( 'ordered_pair'( X
% 0.62/1.02    , Y ), 'element_relation' ) ],
% 0.62/1.02     [ ~( member( X, intersection( Y, Z ) ) ), member( X, Y ) ],
% 0.62/1.02     [ ~( member( X, intersection( Y, Z ) ) ), member( X, Z ) ],
% 0.62/1.02     [ ~( member( X, Y ) ), ~( member( X, Z ) ), member( X, intersection( Y, 
% 0.62/1.02    Z ) ) ],
% 0.62/1.02     [ ~( member( X, complement( Y ) ) ), ~( member( X, Y ) ) ],
% 0.62/1.02     [ ~( member( X, 'universal_class' ) ), member( X, complement( Y ) ), 
% 0.62/1.02    member( X, Y ) ],
% 0.62/1.02     [ =( complement( intersection( complement( X ), complement( Y ) ) ), 
% 0.62/1.02    union( X, Y ) ) ],
% 0.62/1.02     [ =( intersection( complement( intersection( X, Y ) ), complement( 
% 0.62/1.02    intersection( complement( X ), complement( Y ) ) ) ), 
% 0.62/1.02    'symmetric_difference'( X, Y ) ) ],
% 0.62/1.02     [ =( intersection( X, 'cross_product'( Y, Z ) ), restrict( X, Y, Z ) ) ]
% 0.62/1.02    ,
% 0.62/1.02     [ =( intersection( 'cross_product'( X, Y ), Z ), restrict( Z, X, Y ) ) ]
% 0.62/1.02    ,
% 0.62/1.02     [ ~( =( restrict( X, singleton( Y ), 'universal_class' ), 'null_class' )
% 0.62/1.02     ), ~( member( Y, 'domain_of'( X ) ) ) ],
% 0.62/1.02     [ ~( member( X, 'universal_class' ) ), =( restrict( Y, singleton( X ), 
% 0.62/1.02    'universal_class' ), 'null_class' ), member( X, 'domain_of'( Y ) ) ],
% 0.62/1.02     [ subclass( rotate( X ), 'cross_product'( 'cross_product'( 
% 0.62/1.02    'universal_class', 'universal_class' ), 'universal_class' ) ) ],
% 0.62/1.02     [ ~( member( 'ordered_pair'( 'ordered_pair'( X, Y ), Z ), rotate( T ) )
% 0.62/1.02     ), member( 'ordered_pair'( 'ordered_pair'( Y, Z ), X ), T ) ],
% 0.62/1.02     [ ~( member( 'ordered_pair'( 'ordered_pair'( X, Y ), Z ), T ) ), ~( 
% 0.62/1.02    member( 'ordered_pair'( 'ordered_pair'( Z, X ), Y ), 'cross_product'( 
% 0.62/1.02    'cross_product'( 'universal_class', 'universal_class' ), 
% 0.62/1.02    'universal_class' ) ) ), member( 'ordered_pair'( 'ordered_pair'( Z, X ), 
% 0.62/1.02    Y ), rotate( T ) ) ],
% 0.62/1.02     [ subclass( flip( X ), 'cross_product'( 'cross_product'( 
% 0.62/1.02    'universal_class', 'universal_class' ), 'universal_class' ) ) ],
% 0.62/1.02     [ ~( member( 'ordered_pair'( 'ordered_pair'( X, Y ), Z ), flip( T ) ) )
% 0.62/1.02    , member( 'ordered_pair'( 'ordered_pair'( Y, X ), Z ), T ) ],
% 0.62/1.02     [ ~( member( 'ordered_pair'( 'ordered_pair'( X, Y ), Z ), T ) ), ~( 
% 0.62/1.02    member( 'ordered_pair'( 'ordered_pair'( Y, X ), Z ), 'cross_product'( 
% 0.62/1.02    'cross_product'( 'universal_class', 'universal_class' ), 
% 0.62/1.02    'universal_class' ) ) ), member( 'ordered_pair'( 'ordered_pair'( Y, X ), 
% 0.62/1.02    Z ), flip( T ) ) ],
% 0.62/1.02     [ =( 'domain_of'( flip( 'cross_product'( X, 'universal_class' ) ) ), 
% 0.62/1.02    inverse( X ) ) ],
% 0.62/1.02     [ =( 'domain_of'( inverse( X ) ), 'range_of'( X ) ) ],
% 0.62/1.02     [ =( first( 'not_subclass_element'( restrict( X, Y, singleton( Z ) ), 
% 0.62/1.02    'null_class' ) ), domain( X, Y, Z ) ) ],
% 0.62/1.02     [ =( second( 'not_subclass_element'( restrict( X, singleton( Y ), Z ), 
% 0.62/1.02    'null_class' ) ), range( X, Y, Z ) ) ],
% 0.62/1.02     [ =( 'range_of'( restrict( X, Y, 'universal_class' ) ), image( X, Y ) )
% 0.62/1.02     ],
% 0.62/1.02     [ =( union( X, singleton( X ) ), successor( X ) ) ],
% 0.62/1.02     [ subclass( 'successor_relation', 'cross_product'( 'universal_class', 
% 0.62/1.02    'universal_class' ) ) ],
% 0.62/1.02     [ ~( member( 'ordered_pair'( X, Y ), 'successor_relation' ) ), =( 
% 0.62/1.02    successor( X ), Y ) ],
% 0.62/1.02     [ ~( =( successor( X ), Y ) ), ~( member( 'ordered_pair'( X, Y ), 
% 0.62/1.02    'cross_product'( 'universal_class', 'universal_class' ) ) ), member( 
% 0.62/1.02    'ordered_pair'( X, Y ), 'successor_relation' ) ],
% 0.62/1.02     [ ~( inductive( X ) ), member( 'null_class', X ) ],
% 0.62/1.02     [ ~( inductive( X ) ), subclass( image( 'successor_relation', X ), X ) ]
% 0.62/1.02    ,
% 0.62/1.02     [ ~( member( 'null_class', X ) ), ~( subclass( image( 
% 0.62/1.02    'successor_relation', X ), X ) ), inductive( X ) ],
% 0.62/1.02     [ inductive( omega ) ],
% 0.62/1.02     [ ~( inductive( X ) ), subclass( omega, X ) ],
% 0.62/1.02     [ member( omega, 'universal_class' ) ],
% 0.62/1.02     [ =( 'domain_of'( restrict( 'element_relation', 'universal_class', X ) )
% 0.62/1.02    , 'sum_class'( X ) ) ],
% 0.62/1.02     [ ~( member( X, 'universal_class' ) ), member( 'sum_class'( X ), 
% 0.62/1.02    'universal_class' ) ],
% 0.62/1.02     [ =( complement( image( 'element_relation', complement( X ) ) ), 
% 0.62/1.02    'power_class'( X ) ) ],
% 0.62/1.02     [ ~( member( X, 'universal_class' ) ), member( 'power_class'( X ), 
% 0.62/1.02    'universal_class' ) ],
% 0.62/1.02     [ subclass( compose( X, Y ), 'cross_product'( 'universal_class', 
% 0.62/1.02    'universal_class' ) ) ],
% 0.62/1.02     [ ~( member( 'ordered_pair'( X, Y ), compose( Z, T ) ) ), member( Y, 
% 0.62/1.02    image( Z, image( T, singleton( X ) ) ) ) ],
% 0.62/1.02     [ ~( member( X, image( Y, image( Z, singleton( T ) ) ) ) ), ~( member( 
% 0.62/1.02    'ordered_pair'( T, X ), 'cross_product'( 'universal_class', 
% 0.62/1.02    'universal_class' ) ) ), member( 'ordered_pair'( T, X ), compose( Y, Z )
% 0.62/1.02     ) ],
% 0.62/1.02     [ ~( 'single_valued_class'( X ) ), subclass( compose( X, inverse( X ) )
% 0.62/1.02    , 'identity_relation' ) ],
% 0.62/1.02     [ ~( subclass( compose( X, inverse( X ) ), 'identity_relation' ) ), 
% 0.62/1.02    'single_valued_class'( X ) ],
% 0.62/1.02     [ ~( function( X ) ), subclass( X, 'cross_product'( 'universal_class', 
% 0.62/1.02    'universal_class' ) ) ],
% 0.62/1.02     [ ~( function( X ) ), subclass( compose( X, inverse( X ) ), 
% 0.62/1.02    'identity_relation' ) ],
% 0.62/1.02     [ ~( subclass( X, 'cross_product'( 'universal_class', 'universal_class'
% 0.62/1.02     ) ) ), ~( subclass( compose( X, inverse( X ) ), 'identity_relation' ) )
% 0.62/1.02    , function( X ) ],
% 0.62/1.02     [ ~( function( X ) ), ~( member( Y, 'universal_class' ) ), member( image( 
% 0.62/1.02    X, Y ), 'universal_class' ) ],
% 0.62/1.02     [ =( X, 'null_class' ), member( regular( X ), X ) ],
% 0.62/1.02     [ =( X, 'null_class' ), =( intersection( X, regular( X ) ), 'null_class'
% 0.62/1.02     ) ],
% 0.62/1.02     [ =( 'sum_class'( image( X, singleton( Y ) ) ), apply( X, Y ) ) ],
% 0.62/1.02     [ function( choice ) ],
% 0.62/1.02     [ ~( member( X, 'universal_class' ) ), =( X, 'null_class' ), member( 
% 0.62/1.02    apply( choice, X ), X ) ],
% 0.62/1.02     [ ~( 'one_to_one'( X ) ), function( X ) ],
% 0.62/1.02     [ ~( 'one_to_one'( X ) ), function( inverse( X ) ) ],
% 0.62/1.02     [ ~( function( inverse( X ) ) ), ~( function( X ) ), 'one_to_one'( X ) ]
% 0.62/1.02    ,
% 0.62/1.02     [ =( intersection( 'cross_product'( 'universal_class', 'universal_class'
% 0.62/1.02     ), intersection( 'cross_product'( 'universal_class', 'universal_class' )
% 0.62/1.02    , complement( compose( complement( 'element_relation' ), inverse( 
% 0.62/1.02    'element_relation' ) ) ) ) ), 'subset_relation' ) ],
% 0.62/1.02     [ =( intersection( inverse( 'subset_relation' ), 'subset_relation' ), 
% 0.62/1.02    'identity_relation' ) ],
% 0.62/1.02     [ =( complement( 'domain_of'( intersection( X, 'identity_relation' ) ) )
% 0.62/1.02    , diagonalise( X ) ) ],
% 0.62/1.02     [ =( intersection( 'domain_of'( X ), diagonalise( compose( inverse( 
% 0.62/1.02    'element_relation' ), X ) ) ), cantor( X ) ) ],
% 0.62/1.02     [ ~( operation( X ) ), function( X ) ],
% 0.62/1.02     [ ~( operation( X ) ), =( 'cross_product'( 'domain_of'( 'domain_of'( X )
% 0.62/1.02     ), 'domain_of'( 'domain_of'( X ) ) ), 'domain_of'( X ) ) ],
% 0.62/1.02     [ ~( operation( X ) ), subclass( 'range_of'( X ), 'domain_of'( 
% 3.44/3.82    'domain_of'( X ) ) ) ],
% 3.44/3.82     [ ~( function( X ) ), ~( =( 'cross_product'( 'domain_of'( 'domain_of'( X
% 3.44/3.82     ) ), 'domain_of'( 'domain_of'( X ) ) ), 'domain_of'( X ) ) ), ~( 
% 3.44/3.82    subclass( 'range_of'( X ), 'domain_of'( 'domain_of'( X ) ) ) ), operation( 
% 3.44/3.82    X ) ],
% 3.44/3.82     [ ~( compatible( X, Y, Z ) ), function( X ) ],
% 3.44/3.82     [ ~( compatible( X, Y, Z ) ), =( 'domain_of'( 'domain_of'( Y ) ), 
% 3.44/3.82    'domain_of'( X ) ) ],
% 3.44/3.82     [ ~( compatible( X, Y, Z ) ), subclass( 'range_of'( X ), 'domain_of'( 
% 3.44/3.82    'domain_of'( Z ) ) ) ],
% 3.44/3.82     [ ~( function( X ) ), ~( =( 'domain_of'( 'domain_of'( Y ) ), 'domain_of'( 
% 3.44/3.82    X ) ) ), ~( subclass( 'range_of'( X ), 'domain_of'( 'domain_of'( Z ) ) )
% 3.44/3.82     ), compatible( X, Y, Z ) ],
% 3.44/3.82     [ ~( homomorphism( X, Y, Z ) ), operation( Y ) ],
% 3.44/3.82     [ ~( homomorphism( X, Y, Z ) ), operation( Z ) ],
% 3.44/3.82     [ ~( homomorphism( X, Y, Z ) ), compatible( X, Y, Z ) ],
% 3.44/3.82     [ ~( homomorphism( X, Y, Z ) ), ~( member( 'ordered_pair'( T, U ), 
% 3.44/3.82    'domain_of'( Y ) ) ), =( apply( Z, 'ordered_pair'( apply( X, T ), apply( 
% 3.44/3.82    X, U ) ) ), apply( X, apply( Y, 'ordered_pair'( T, U ) ) ) ) ],
% 3.44/3.82     [ ~( operation( X ) ), ~( operation( Y ) ), ~( compatible( Z, X, Y ) ), 
% 3.44/3.82    member( 'ordered_pair'( 'not_homomorphism1'( Z, X, Y ), 
% 3.44/3.82    'not_homomorphism2'( Z, X, Y ) ), 'domain_of'( X ) ), homomorphism( Z, X
% 3.44/3.82    , Y ) ],
% 3.44/3.82     [ ~( operation( X ) ), ~( operation( Y ) ), ~( compatible( Z, X, Y ) ), 
% 3.44/3.82    ~( =( apply( Y, 'ordered_pair'( apply( Z, 'not_homomorphism1'( Z, X, Y )
% 3.44/3.82     ), apply( Z, 'not_homomorphism2'( Z, X, Y ) ) ) ), apply( Z, apply( X, 
% 3.44/3.82    'ordered_pair'( 'not_homomorphism1'( Z, X, Y ), 'not_homomorphism2'( Z, X
% 3.44/3.82    , Y ) ) ) ) ) ), homomorphism( Z, X, Y ) ],
% 3.44/3.82     [ subclass( x, singleton( y ) ) ],
% 3.44/3.82     [ ~( =( x, 'null_class' ) ) ],
% 3.44/3.82     [ ~( =( singleton( y ), x ) ) ]
% 3.44/3.82  ] .
% 3.44/3.82  
% 3.44/3.82  
% 3.44/3.82  percentage equality = 0.222826, percentage horn = 0.914894
% 3.44/3.82  This is a problem with some equality
% 3.44/3.82  
% 3.44/3.82  
% 3.44/3.82  
% 3.44/3.82  Options Used:
% 3.44/3.82  
% 3.44/3.82  useres =            1
% 3.44/3.82  useparamod =        1
% 3.44/3.82  useeqrefl =         1
% 3.44/3.82  useeqfact =         1
% 3.44/3.82  usefactor =         1
% 3.44/3.82  usesimpsplitting =  0
% 3.44/3.82  usesimpdemod =      5
% 3.44/3.82  usesimpres =        3
% 3.44/3.82  
% 3.44/3.82  resimpinuse      =  1000
% 3.44/3.82  resimpclauses =     20000
% 3.44/3.82  substype =          eqrewr
% 3.44/3.82  backwardsubs =      1
% 3.44/3.82  selectoldest =      5
% 3.44/3.82  
% 3.44/3.82  litorderings [0] =  split
% 3.44/3.82  litorderings [1] =  extend the termordering, first sorting on arguments
% 3.44/3.82  
% 3.44/3.82  termordering =      kbo
% 3.44/3.82  
% 3.44/3.82  litapriori =        0
% 3.44/3.82  termapriori =       1
% 3.44/3.82  litaposteriori =    0
% 3.44/3.82  termaposteriori =   0
% 3.44/3.82  demodaposteriori =  0
% 3.44/3.82  ordereqreflfact =   0
% 3.44/3.82  
% 3.44/3.82  litselect =         negord
% 3.44/3.82  
% 3.44/3.82  maxweight =         15
% 3.44/3.82  maxdepth =          30000
% 3.44/3.82  maxlength =         115
% 3.44/3.82  maxnrvars =         195
% 3.44/3.82  excuselevel =       1
% 3.44/3.82  increasemaxweight = 1
% 3.44/3.82  
% 3.44/3.82  maxselected =       10000000
% 3.44/3.82  maxnrclauses =      10000000
% 3.44/3.82  
% 3.44/3.82  showgenerated =    0
% 3.44/3.82  showkept =         0
% 3.44/3.82  showselected =     0
% 3.44/3.82  showdeleted =      0
% 3.44/3.82  showresimp =       1
% 3.44/3.82  showstatus =       2000
% 3.44/3.82  
% 3.44/3.82  prologoutput =     1
% 3.44/3.82  nrgoals =          5000000
% 3.44/3.82  totalproof =       1
% 3.44/3.82  
% 3.44/3.82  Symbols occurring in the translation:
% 3.44/3.82  
% 3.44/3.82  {}  [0, 0]      (w:1, o:2, a:1, s:1, b:0), 
% 3.44/3.82  .  [1, 2]      (w:1, o:56, a:1, s:1, b:0), 
% 3.44/3.82  !  [4, 1]      (w:0, o:31, a:1, s:1, b:0), 
% 3.44/3.82  =  [13, 2]      (w:1, o:0, a:0, s:1, b:0), 
% 3.44/3.82  ==>  [14, 2]      (w:1, o:0, a:0, s:1, b:0), 
% 3.44/3.82  subclass  [41, 2]      (w:1, o:81, a:1, s:1, b:0), 
% 3.44/3.82  member  [43, 2]      (w:1, o:82, a:1, s:1, b:0), 
% 3.44/3.82  'not_subclass_element'  [44, 2]      (w:1, o:83, a:1, s:1, b:0), 
% 3.44/3.82  'universal_class'  [45, 0]      (w:1, o:21, a:1, s:1, b:0), 
% 3.44/3.82  'unordered_pair'  [46, 2]      (w:1, o:84, a:1, s:1, b:0), 
% 3.44/3.82  singleton  [47, 1]      (w:1, o:39, a:1, s:1, b:0), 
% 3.44/3.82  'ordered_pair'  [48, 2]      (w:1, o:85, a:1, s:1, b:0), 
% 3.44/3.82  'cross_product'  [50, 2]      (w:1, o:86, a:1, s:1, b:0), 
% 3.44/3.82  first  [52, 1]      (w:1, o:40, a:1, s:1, b:0), 
% 3.44/3.82  second  [53, 1]      (w:1, o:41, a:1, s:1, b:0), 
% 3.44/3.82  'element_relation'  [54, 0]      (w:1, o:25, a:1, s:1, b:0), 
% 3.44/3.82  intersection  [55, 2]      (w:1, o:88, a:1, s:1, b:0), 
% 3.44/3.82  complement  [56, 1]      (w:1, o:42, a:1, s:1, b:0), 
% 3.44/3.82  union  [57, 2]      (w:1, o:89, a:1, s:1, b:0), 
% 3.44/3.82  'symmetric_difference'  [58, 2]      (w:1, o:90, a:1, s:1, b:0), 
% 3.44/3.82  restrict  [60, 3]      (w:1, o:93, a:1, s:1, b:0), 
% 3.44/3.82  'null_class'  [61, 0]      (w:1, o:26, a:1, s:1, b:0), 
% 3.44/3.82  'domain_of'  [62, 1]      (w:1, o:44, a:1, s:1, b:0), 
% 3.44/3.82  rotate  [63, 1]      (w:1, o:36, a:1, s:1, b:0), 
% 3.44/3.82  flip  [65, 1]      (w:1, o:45, a:1, s:1, b:0), 
% 3.44/3.82  inverse  [66, 1]      (w:1, o:46, a:1, s:1, b:0), 
% 3.44/3.82  'range_of'  [67, 1]      (w:1, o:37, a:1, s:1, b:0), 
% 3.44/3.82  domain  [68, 3]      (w:1, o:95, a:1, s:1, b:0), 
% 3.44/3.82  range  [69, 3]      (w:1, o:96, a:1, s:1, b:0), 
% 3.44/3.82  image  [70, 2]      (w:1, o:87, a:1, s:1, b:0), 
% 3.44/3.82  successor  [71, 1]      (w:1, o:47, a:1, s:1, b:0), 
% 3.44/3.82  'successor_relation'  [72, 0]      (w:1, o:6, a:1, s:1, b:0), 
% 3.44/3.82  inductive  [73, 1]      (w:1, o:48, a:1, s:1, b:0), 
% 3.44/3.82  omega  [74, 0]      (w:1, o:9, a:1, s:1, b:0), 
% 3.44/3.82  'sum_class'  [75, 1]      (w:1, o:49, a:1, s:1, b:0), 
% 3.44/3.82  'power_class'  [76, 1]      (w:1, o:52, a:1, s:1, b:0), 
% 3.44/3.82  compose  [78, 2]      (w:1, o:91, a:1, s:1, b:0), 
% 3.44/3.82  'single_valued_class'  [79, 1]      (w:1, o:53, a:1, s:1, b:0), 
% 3.44/3.82  'identity_relation'  [80, 0]      (w:1, o:27, a:1, s:1, b:0), 
% 3.44/3.82  function  [82, 1]      (w:1, o:54, a:1, s:1, b:0), 
% 3.44/3.82  regular  [83, 1]      (w:1, o:38, a:1, s:1, b:0), 
% 3.44/3.82  apply  [84, 2]      (w:1, o:92, a:1, s:1, b:0), 
% 3.44/3.82  choice  [85, 0]      (w:1, o:28, a:1, s:1, b:0), 
% 3.44/3.82  'one_to_one'  [86, 1]      (w:1, o:50, a:1, s:1, b:0), 
% 3.44/3.82  'subset_relation'  [87, 0]      (w:1, o:5, a:1, s:1, b:0), 
% 3.44/3.82  diagonalise  [88, 1]      (w:1, o:55, a:1, s:1, b:0), 
% 3.44/3.82  cantor  [89, 1]      (w:1, o:43, a:1, s:1, b:0), 
% 3.44/3.82  operation  [90, 1]      (w:1, o:51, a:1, s:1, b:0), 
% 3.44/3.82  compatible  [94, 3]      (w:1, o:94, a:1, s:1, b:0), 
% 3.44/3.82  homomorphism  [95, 3]      (w:1, o:97, a:1, s:1, b:0), 
% 3.44/3.82  'not_homomorphism1'  [96, 3]      (w:1, o:98, a:1, s:1, b:0), 
% 3.44/3.82  'not_homomorphism2'  [97, 3]      (w:1, o:99, a:1, s:1, b:0), 
% 3.44/3.82  x  [98, 0]      (w:1, o:29, a:1, s:1, b:0), 
% 3.44/3.82  y  [99, 0]      (w:1, o:30, a:1, s:1, b:0).
% 3.44/3.82  
% 3.44/3.82  
% 3.44/3.82  Starting Search:
% 3.44/3.82  
% 3.44/3.82  Resimplifying inuse:
% 3.44/3.82  Done
% 3.44/3.82  
% 3.44/3.82  
% 3.44/3.82  Intermediate Status:
% 3.44/3.82  Generated:    4678
% 3.44/3.82  Kept:         2009
% 3.44/3.82  Inuse:        113
% 3.44/3.82  Deleted:      4
% 3.44/3.82  Deletedinuse: 2
% 3.44/3.82  
% 3.44/3.82  Resimplifying inuse:
% 3.44/3.82  Done
% 3.44/3.82  
% 3.44/3.82  Resimplifying inuse:
% 3.44/3.82  Done
% 3.44/3.82  
% 3.44/3.82  
% 3.44/3.82  Intermediate Status:
% 3.44/3.82  Generated:    9301
% 3.44/3.82  Kept:         4026
% 3.44/3.82  Inuse:        187
% 3.44/3.82  Deleted:      13
% 3.44/3.82  Deletedinuse: 5
% 3.44/3.82  
% 3.44/3.82  Resimplifying inuse:
% 3.44/3.82  Done
% 3.44/3.82  
% 3.44/3.82  Resimplifying inuse:
% 3.44/3.82  Done
% 3.44/3.82  
% 3.44/3.82  
% 3.44/3.82  Intermediate Status:
% 3.44/3.82  Generated:    13264
% 3.44/3.82  Kept:         6077
% 3.44/3.82  Inuse:        240
% 3.44/3.82  Deleted:      20
% 3.44/3.82  Deletedinuse: 9
% 3.44/3.82  
% 3.44/3.82  Resimplifying inuse:
% 3.44/3.82  Done
% 3.44/3.82  
% 3.44/3.82  Resimplifying inuse:
% 3.44/3.82  Done
% 3.44/3.82  
% 3.44/3.82  
% 3.44/3.82  Intermediate Status:
% 3.44/3.82  Generated:    18028
% 3.44/3.82  Kept:         8084
% 3.44/3.82  Inuse:        289
% 3.44/3.82  Deleted:      81
% 3.44/3.82  Deletedinuse: 69
% 3.44/3.82  
% 3.44/3.82  Resimplifying inuse:
% 3.44/3.82  Done
% 3.44/3.82  
% 3.44/3.82  Resimplifying inuse:
% 3.44/3.82  Done
% 3.44/3.82  
% 3.44/3.82  
% 3.44/3.82  Intermediate Status:
% 3.44/3.82  Generated:    24830
% 3.44/3.82  Kept:         11150
% 3.44/3.82  Inuse:        366
% 3.44/3.82  Deleted:      90
% 3.44/3.82  Deletedinuse: 75
% 3.44/3.82  
% 3.44/3.82  Resimplifying inuse:
% 3.44/3.82  Done
% 3.44/3.82  
% 3.44/3.82  Resimplifying inuse:
% 3.44/3.82  Done
% 3.44/3.82  
% 3.44/3.82  
% 3.44/3.82  Intermediate Status:
% 3.44/3.82  Generated:    31193
% 3.44/3.82  Kept:         13360
% 3.44/3.82  Inuse:        376
% 3.44/3.82  Deleted:      91
% 3.44/3.82  Deletedinuse: 76
% 3.44/3.82  
% 3.44/3.82  Resimplifying inuse:
% 3.44/3.82  Done
% 3.44/3.82  
% 3.44/3.82  Resimplifying inuse:
% 3.44/3.82  Done
% 3.44/3.82  
% 3.44/3.82  
% 3.44/3.82  Intermediate Status:
% 3.44/3.82  Generated:    36504
% 3.44/3.82  Kept:         15361
% 3.44/3.82  Inuse:        435
% 3.44/3.82  Deleted:      96
% 3.44/3.82  Deletedinuse: 81
% 3.44/3.82  
% 3.44/3.82  Resimplifying inuse:
% 3.44/3.82  Done
% 3.44/3.82  
% 3.44/3.82  Resimplifying inuse:
% 3.44/3.82  Done
% 3.44/3.82  
% 3.44/3.82  
% 3.44/3.82  Intermediate Status:
% 3.44/3.82  Generated:    43032
% 3.44/3.82  Kept:         17805
% 3.44/3.82  Inuse:        491
% 3.44/3.82  Deleted:      102
% 3.44/3.82  Deletedinuse: 87
% 3.44/3.82  
% 3.44/3.82  Resimplifying inuse:
% 3.44/3.82  Done
% 3.44/3.82  
% 3.44/3.82  Resimplifying inuse:
% 3.44/3.82  Done
% 3.44/3.82  
% 3.44/3.82  
% 3.44/3.82  Intermediate Status:
% 3.44/3.82  Generated:    49398
% 3.44/3.82  Kept:         19832
% 3.44/3.82  Inuse:        524
% 3.44/3.82  Deleted:      103
% 3.44/3.82  Deletedinuse: 87
% 3.44/3.82  
% 3.44/3.82  Resimplifying clauses:
% 3.44/3.82  Done
% 3.44/3.82  
% 3.44/3.82  Resimplifying inuse:
% 3.44/3.82  Done
% 3.44/3.82  
% 3.44/3.82  Resimplifying inuse:
% 3.44/3.82  Done
% 3.44/3.82  
% 3.44/3.82  
% 3.44/3.82  Intermediate Status:
% 3.44/3.82  Generated:    55193
% 3.44/3.82  Kept:         21868
% 3.44/3.82  Inuse:        564
% 3.44/3.82  Deleted:      3551
% 3.44/3.82  Deletedinuse: 88
% 3.44/3.82  
% 3.44/3.82  Resimplifying inuse:
% 3.44/3.82  Done
% 3.44/3.82  
% 3.44/3.82  Resimplifying inuse:
% 3.44/3.82  Done
% 3.44/3.82  
% 3.44/3.82  
% 3.44/3.82  Intermediate Status:
% 3.44/3.82  Generated:    60569
% 3.44/3.82  Kept:         23882
% 3.44/3.82  Inuse:        608
% 3.44/3.82  Deleted:      3552
% 3.44/3.82  Deletedinuse: 88
% 3.44/3.82  
% 3.44/3.82  Resimplifying inuse:
% 3.44/3.82  
% 3.44/3.82  Bliksems!, er is een bewijs:
% 3.44/3.82  % SZS status Unsatisfiable
% 3.44/3.82  % SZS output start Refutation
% 3.44/3.82  
% 3.44/3.82  clause( 0, [ ~( subclass( X, Y ) ), ~( member( Z, X ) ), member( Z, Y ) ]
% 3.44/3.82     )
% 3.44/3.82  .
% 3.44/3.82  clause( 1, [ member( 'not_subclass_element'( X, Y ), X ), subclass( X, Y )
% 3.44/3.82     ] )
% 3.44/3.82  .
% 3.44/3.82  clause( 2, [ ~( member( 'not_subclass_element'( X, Y ), Y ) ), subclass( X
% 3.44/3.82    , Y ) ] )
% 3.44/3.82  .
% 3.44/3.82  clause( 4, [ ~( =( X, Y ) ), subclass( X, Y ) ] )
% 3.44/3.82  .
% 3.44/3.82  clause( 5, [ ~( subclass( X, Y ) ), ~( subclass( Y, X ) ), =( X, Y ) ] )
% 3.44/3.82  .
% 3.44/3.82  clause( 6, [ ~( member( X, 'unordered_pair'( Y, Z ) ) ), =( X, Y ), =( X, Z
% 3.44/3.82     ) ] )
% 3.44/3.82  .
% 3.44/3.82  clause( 10, [ =( 'unordered_pair'( X, X ), singleton( X ) ) ] )
% 3.44/3.82  .
% 3.44/3.82  clause( 64, [ =( X, 'null_class' ), member( regular( X ), X ) ] )
% 3.44/3.82  .
% 3.44/3.82  clause( 90, [ subclass( x, singleton( y ) ) ] )
% 3.44/3.82  .
% 3.44/3.82  clause( 91, [ ~( =( x, 'null_class' ) ) ] )
% 3.44/3.82  .
% 3.44/3.82  clause( 92, [ ~( =( singleton( y ), x ) ) ] )
% 3.44/3.82  .
% 3.44/3.82  clause( 93, [ subclass( X, X ) ] )
% 3.44/3.82  .
% 3.44/3.82  clause( 94, [ =( X, Y ), ~( member( X, singleton( Y ) ) ) ] )
% 3.44/3.82  .
% 3.44/3.82  clause( 110, [ ~( member( X, x ) ), member( X, singleton( y ) ) ] )
% 3.44/3.82  .
% 3.44/3.82  clause( 128, [ ~( subclass( singleton( y ), x ) ), =( singleton( y ), x ) ]
% 3.44/3.82     )
% 3.44/3.82  .
% 3.44/3.82  clause( 147, [ ~( =( X, x ) ), ~( subclass( singleton( y ), X ) ), ~( 
% 3.44/3.82    subclass( X, singleton( y ) ) ) ] )
% 3.44/3.82  .
% 3.44/3.82  clause( 150, [ ~( =( X, 'null_class' ) ), ~( subclass( x, X ) ), ~( 
% 3.44/3.82    subclass( X, x ) ) ] )
% 3.44/3.82  .
% 3.44/3.82  clause( 154, [ ~( subclass( x, 'null_class' ) ), ~( subclass( 'null_class'
% 3.44/3.82    , x ) ) ] )
% 3.44/3.82  .
% 3.44/3.82  clause( 155, [ ~( subclass( singleton( y ), x ) ) ] )
% 3.44/3.82  .
% 3.44/3.82  clause( 156, [ ~( member( 'not_subclass_element'( singleton( y ), x ), x )
% 3.44/3.82     ) ] )
% 3.44/3.82  .
% 3.44/3.82  clause( 157, [ member( 'not_subclass_element'( singleton( y ), x ), 
% 3.44/3.82    singleton( y ) ) ] )
% 3.44/3.82  .
% 3.44/3.82  clause( 7189, [ member( regular( x ), x ) ] )
% 3.44/3.82  .
% 3.44/3.82  clause( 15372, [ member( regular( x ), singleton( y ) ) ] )
% 3.44/3.82  .
% 3.44/3.82  clause( 15436, [ =( regular( x ), y ) ] )
% 3.44/3.82  .
% 3.44/3.82  clause( 15539, [ member( y, x ) ] )
% 3.44/3.82  .
% 3.44/3.82  clause( 23395, [ =( 'not_subclass_element'( singleton( y ), x ), y ) ] )
% 3.44/3.82  .
% 3.44/3.82  clause( 24193, [] )
% 3.44/3.82  .
% 3.44/3.82  
% 3.44/3.82  
% 3.44/3.82  % SZS output end Refutation
% 3.44/3.82  found a proof!
% 3.44/3.82  
% 3.44/3.82  % ABCDEFGHIJKLMNOPQRSTUVWXYZ
% 3.44/3.82  
% 3.44/3.82  initialclauses(
% 3.44/3.82  [ clause( 24195, [ ~( subclass( X, Y ) ), ~( member( Z, X ) ), member( Z, Y
% 3.44/3.82     ) ] )
% 3.44/3.82  , clause( 24196, [ member( 'not_subclass_element'( X, Y ), X ), subclass( X
% 3.44/3.82    , Y ) ] )
% 3.44/3.82  , clause( 24197, [ ~( member( 'not_subclass_element'( X, Y ), Y ) ), 
% 3.44/3.82    subclass( X, Y ) ] )
% 3.44/3.82  , clause( 24198, [ subclass( X, 'universal_class' ) ] )
% 3.44/3.82  , clause( 24199, [ ~( =( X, Y ) ), subclass( X, Y ) ] )
% 3.44/3.82  , clause( 24200, [ ~( =( X, Y ) ), subclass( Y, X ) ] )
% 3.44/3.82  , clause( 24201, [ ~( subclass( X, Y ) ), ~( subclass( Y, X ) ), =( X, Y )
% 3.44/3.82     ] )
% 3.44/3.82  , clause( 24202, [ ~( member( X, 'unordered_pair'( Y, Z ) ) ), =( X, Y ), 
% 3.44/3.82    =( X, Z ) ] )
% 3.44/3.82  , clause( 24203, [ ~( member( X, 'universal_class' ) ), member( X, 
% 3.44/3.82    'unordered_pair'( X, Y ) ) ] )
% 3.44/3.82  , clause( 24204, [ ~( member( X, 'universal_class' ) ), member( X, 
% 3.44/3.82    'unordered_pair'( Y, X ) ) ] )
% 3.44/3.82  , clause( 24205, [ member( 'unordered_pair'( X, Y ), 'universal_class' ) ]
% 3.44/3.82     )
% 3.44/3.82  , clause( 24206, [ =( 'unordered_pair'( X, X ), singleton( X ) ) ] )
% 3.44/3.82  , clause( 24207, [ =( 'unordered_pair'( singleton( X ), 'unordered_pair'( X
% 3.44/3.82    , singleton( Y ) ) ), 'ordered_pair'( X, Y ) ) ] )
% 3.44/3.82  , clause( 24208, [ ~( member( 'ordered_pair'( X, Y ), 'cross_product'( Z, T
% 3.44/3.82     ) ) ), member( X, Z ) ] )
% 3.44/3.82  , clause( 24209, [ ~( member( 'ordered_pair'( X, Y ), 'cross_product'( Z, T
% 3.44/3.82     ) ) ), member( Y, T ) ] )
% 3.44/3.82  , clause( 24210, [ ~( member( X, Y ) ), ~( member( Z, T ) ), member( 
% 3.44/3.82    'ordered_pair'( X, Z ), 'cross_product'( Y, T ) ) ] )
% 3.44/3.82  , clause( 24211, [ ~( member( X, 'cross_product'( Y, Z ) ) ), =( 
% 3.44/3.82    'ordered_pair'( first( X ), second( X ) ), X ) ] )
% 3.44/3.82  , clause( 24212, [ subclass( 'element_relation', 'cross_product'( 
% 3.44/3.82    'universal_class', 'universal_class' ) ) ] )
% 3.44/3.82  , clause( 24213, [ ~( member( 'ordered_pair'( X, Y ), 'element_relation' )
% 3.44/3.82     ), member( X, Y ) ] )
% 3.44/3.82  , clause( 24214, [ ~( member( 'ordered_pair'( X, Y ), 'cross_product'( 
% 3.44/3.82    'universal_class', 'universal_class' ) ) ), ~( member( X, Y ) ), member( 
% 3.44/3.82    'ordered_pair'( X, Y ), 'element_relation' ) ] )
% 3.44/3.82  , clause( 24215, [ ~( member( X, intersection( Y, Z ) ) ), member( X, Y ) ]
% 3.44/3.82     )
% 3.44/3.82  , clause( 24216, [ ~( member( X, intersection( Y, Z ) ) ), member( X, Z ) ]
% 3.44/3.82     )
% 3.44/3.82  , clause( 24217, [ ~( member( X, Y ) ), ~( member( X, Z ) ), member( X, 
% 3.44/3.82    intersection( Y, Z ) ) ] )
% 3.44/3.82  , clause( 24218, [ ~( member( X, complement( Y ) ) ), ~( member( X, Y ) ) ]
% 3.44/3.82     )
% 3.44/3.82  , clause( 24219, [ ~( member( X, 'universal_class' ) ), member( X, 
% 3.44/3.82    complement( Y ) ), member( X, Y ) ] )
% 3.44/3.82  , clause( 24220, [ =( complement( intersection( complement( X ), complement( 
% 3.44/3.82    Y ) ) ), union( X, Y ) ) ] )
% 3.44/3.82  , clause( 24221, [ =( intersection( complement( intersection( X, Y ) ), 
% 3.44/3.82    complement( intersection( complement( X ), complement( Y ) ) ) ), 
% 3.44/3.82    'symmetric_difference'( X, Y ) ) ] )
% 3.44/3.82  , clause( 24222, [ =( intersection( X, 'cross_product'( Y, Z ) ), restrict( 
% 3.44/3.82    X, Y, Z ) ) ] )
% 3.44/3.82  , clause( 24223, [ =( intersection( 'cross_product'( X, Y ), Z ), restrict( 
% 3.44/3.82    Z, X, Y ) ) ] )
% 3.44/3.82  , clause( 24224, [ ~( =( restrict( X, singleton( Y ), 'universal_class' ), 
% 3.44/3.82    'null_class' ) ), ~( member( Y, 'domain_of'( X ) ) ) ] )
% 3.44/3.82  , clause( 24225, [ ~( member( X, 'universal_class' ) ), =( restrict( Y, 
% 3.44/3.82    singleton( X ), 'universal_class' ), 'null_class' ), member( X, 
% 3.44/3.82    'domain_of'( Y ) ) ] )
% 3.44/3.82  , clause( 24226, [ subclass( rotate( X ), 'cross_product'( 'cross_product'( 
% 3.44/3.82    'universal_class', 'universal_class' ), 'universal_class' ) ) ] )
% 3.44/3.82  , clause( 24227, [ ~( member( 'ordered_pair'( 'ordered_pair'( X, Y ), Z ), 
% 3.44/3.82    rotate( T ) ) ), member( 'ordered_pair'( 'ordered_pair'( Y, Z ), X ), T )
% 3.44/3.82     ] )
% 3.44/3.82  , clause( 24228, [ ~( member( 'ordered_pair'( 'ordered_pair'( X, Y ), Z ), 
% 3.44/3.82    T ) ), ~( member( 'ordered_pair'( 'ordered_pair'( Z, X ), Y ), 
% 3.44/3.82    'cross_product'( 'cross_product'( 'universal_class', 'universal_class' )
% 3.44/3.82    , 'universal_class' ) ) ), member( 'ordered_pair'( 'ordered_pair'( Z, X )
% 3.44/3.82    , Y ), rotate( T ) ) ] )
% 3.44/3.82  , clause( 24229, [ subclass( flip( X ), 'cross_product'( 'cross_product'( 
% 3.44/3.82    'universal_class', 'universal_class' ), 'universal_class' ) ) ] )
% 3.44/3.82  , clause( 24230, [ ~( member( 'ordered_pair'( 'ordered_pair'( X, Y ), Z ), 
% 3.44/3.82    flip( T ) ) ), member( 'ordered_pair'( 'ordered_pair'( Y, X ), Z ), T ) ]
% 3.44/3.82     )
% 3.44/3.82  , clause( 24231, [ ~( member( 'ordered_pair'( 'ordered_pair'( X, Y ), Z ), 
% 3.44/3.82    T ) ), ~( member( 'ordered_pair'( 'ordered_pair'( Y, X ), Z ), 
% 3.44/3.82    'cross_product'( 'cross_product'( 'universal_class', 'universal_class' )
% 3.44/3.82    , 'universal_class' ) ) ), member( 'ordered_pair'( 'ordered_pair'( Y, X )
% 3.44/3.82    , Z ), flip( T ) ) ] )
% 3.44/3.82  , clause( 24232, [ =( 'domain_of'( flip( 'cross_product'( X, 
% 3.44/3.82    'universal_class' ) ) ), inverse( X ) ) ] )
% 3.44/3.82  , clause( 24233, [ =( 'domain_of'( inverse( X ) ), 'range_of'( X ) ) ] )
% 3.44/3.82  , clause( 24234, [ =( first( 'not_subclass_element'( restrict( X, Y, 
% 3.44/3.82    singleton( Z ) ), 'null_class' ) ), domain( X, Y, Z ) ) ] )
% 3.44/3.82  , clause( 24235, [ =( second( 'not_subclass_element'( restrict( X, 
% 3.44/3.82    singleton( Y ), Z ), 'null_class' ) ), range( X, Y, Z ) ) ] )
% 3.44/3.82  , clause( 24236, [ =( 'range_of'( restrict( X, Y, 'universal_class' ) ), 
% 3.44/3.82    image( X, Y ) ) ] )
% 3.44/3.82  , clause( 24237, [ =( union( X, singleton( X ) ), successor( X ) ) ] )
% 3.44/3.82  , clause( 24238, [ subclass( 'successor_relation', 'cross_product'( 
% 3.44/3.82    'universal_class', 'universal_class' ) ) ] )
% 3.44/3.82  , clause( 24239, [ ~( member( 'ordered_pair'( X, Y ), 'successor_relation'
% 3.44/3.82     ) ), =( successor( X ), Y ) ] )
% 3.44/3.82  , clause( 24240, [ ~( =( successor( X ), Y ) ), ~( member( 'ordered_pair'( 
% 3.44/3.82    X, Y ), 'cross_product'( 'universal_class', 'universal_class' ) ) ), 
% 3.44/3.82    member( 'ordered_pair'( X, Y ), 'successor_relation' ) ] )
% 3.44/3.82  , clause( 24241, [ ~( inductive( X ) ), member( 'null_class', X ) ] )
% 3.44/3.82  , clause( 24242, [ ~( inductive( X ) ), subclass( image( 
% 3.44/3.82    'successor_relation', X ), X ) ] )
% 3.44/3.82  , clause( 24243, [ ~( member( 'null_class', X ) ), ~( subclass( image( 
% 3.44/3.82    'successor_relation', X ), X ) ), inductive( X ) ] )
% 3.44/3.82  , clause( 24244, [ inductive( omega ) ] )
% 3.44/3.82  , clause( 24245, [ ~( inductive( X ) ), subclass( omega, X ) ] )
% 3.44/3.82  , clause( 24246, [ member( omega, 'universal_class' ) ] )
% 3.44/3.82  , clause( 24247, [ =( 'domain_of'( restrict( 'element_relation', 
% 3.44/3.82    'universal_class', X ) ), 'sum_class'( X ) ) ] )
% 3.44/3.82  , clause( 24248, [ ~( member( X, 'universal_class' ) ), member( 'sum_class'( 
% 3.44/3.82    X ), 'universal_class' ) ] )
% 3.44/3.82  , clause( 24249, [ =( complement( image( 'element_relation', complement( X
% 3.44/3.82     ) ) ), 'power_class'( X ) ) ] )
% 3.44/3.82  , clause( 24250, [ ~( member( X, 'universal_class' ) ), member( 
% 3.44/3.82    'power_class'( X ), 'universal_class' ) ] )
% 3.44/3.82  , clause( 24251, [ subclass( compose( X, Y ), 'cross_product'( 
% 3.44/3.82    'universal_class', 'universal_class' ) ) ] )
% 3.44/3.82  , clause( 24252, [ ~( member( 'ordered_pair'( X, Y ), compose( Z, T ) ) ), 
% 3.44/3.82    member( Y, image( Z, image( T, singleton( X ) ) ) ) ] )
% 3.44/3.82  , clause( 24253, [ ~( member( X, image( Y, image( Z, singleton( T ) ) ) ) )
% 3.44/3.82    , ~( member( 'ordered_pair'( T, X ), 'cross_product'( 'universal_class', 
% 3.44/3.82    'universal_class' ) ) ), member( 'ordered_pair'( T, X ), compose( Y, Z )
% 3.44/3.82     ) ] )
% 3.44/3.82  , clause( 24254, [ ~( 'single_valued_class'( X ) ), subclass( compose( X, 
% 3.44/3.82    inverse( X ) ), 'identity_relation' ) ] )
% 3.44/3.82  , clause( 24255, [ ~( subclass( compose( X, inverse( X ) ), 
% 3.44/3.82    'identity_relation' ) ), 'single_valued_class'( X ) ] )
% 3.44/3.82  , clause( 24256, [ ~( function( X ) ), subclass( X, 'cross_product'( 
% 3.44/3.82    'universal_class', 'universal_class' ) ) ] )
% 3.44/3.82  , clause( 24257, [ ~( function( X ) ), subclass( compose( X, inverse( X ) )
% 3.44/3.82    , 'identity_relation' ) ] )
% 3.44/3.82  , clause( 24258, [ ~( subclass( X, 'cross_product'( 'universal_class', 
% 3.44/3.82    'universal_class' ) ) ), ~( subclass( compose( X, inverse( X ) ), 
% 3.44/3.82    'identity_relation' ) ), function( X ) ] )
% 3.44/3.82  , clause( 24259, [ ~( function( X ) ), ~( member( Y, 'universal_class' ) )
% 3.44/3.82    , member( image( X, Y ), 'universal_class' ) ] )
% 3.44/3.82  , clause( 24260, [ =( X, 'null_class' ), member( regular( X ), X ) ] )
% 3.44/3.82  , clause( 24261, [ =( X, 'null_class' ), =( intersection( X, regular( X ) )
% 3.44/3.82    , 'null_class' ) ] )
% 3.44/3.82  , clause( 24262, [ =( 'sum_class'( image( X, singleton( Y ) ) ), apply( X, 
% 3.44/3.82    Y ) ) ] )
% 3.44/3.82  , clause( 24263, [ function( choice ) ] )
% 3.44/3.82  , clause( 24264, [ ~( member( X, 'universal_class' ) ), =( X, 'null_class'
% 3.44/3.82     ), member( apply( choice, X ), X ) ] )
% 3.44/3.82  , clause( 24265, [ ~( 'one_to_one'( X ) ), function( X ) ] )
% 3.44/3.82  , clause( 24266, [ ~( 'one_to_one'( X ) ), function( inverse( X ) ) ] )
% 3.44/3.82  , clause( 24267, [ ~( function( inverse( X ) ) ), ~( function( X ) ), 
% 3.44/3.82    'one_to_one'( X ) ] )
% 3.44/3.82  , clause( 24268, [ =( intersection( 'cross_product'( 'universal_class', 
% 3.44/3.82    'universal_class' ), intersection( 'cross_product'( 'universal_class', 
% 3.44/3.82    'universal_class' ), complement( compose( complement( 'element_relation'
% 3.44/3.82     ), inverse( 'element_relation' ) ) ) ) ), 'subset_relation' ) ] )
% 3.44/3.82  , clause( 24269, [ =( intersection( inverse( 'subset_relation' ), 
% 3.44/3.82    'subset_relation' ), 'identity_relation' ) ] )
% 3.44/3.82  , clause( 24270, [ =( complement( 'domain_of'( intersection( X, 
% 3.44/3.82    'identity_relation' ) ) ), diagonalise( X ) ) ] )
% 3.44/3.82  , clause( 24271, [ =( intersection( 'domain_of'( X ), diagonalise( compose( 
% 3.44/3.82    inverse( 'element_relation' ), X ) ) ), cantor( X ) ) ] )
% 3.44/3.82  , clause( 24272, [ ~( operation( X ) ), function( X ) ] )
% 3.44/3.82  , clause( 24273, [ ~( operation( X ) ), =( 'cross_product'( 'domain_of'( 
% 3.44/3.82    'domain_of'( X ) ), 'domain_of'( 'domain_of'( X ) ) ), 'domain_of'( X ) )
% 3.44/3.82     ] )
% 3.44/3.82  , clause( 24274, [ ~( operation( X ) ), subclass( 'range_of'( X ), 
% 3.44/3.82    'domain_of'( 'domain_of'( X ) ) ) ] )
% 3.44/3.82  , clause( 24275, [ ~( function( X ) ), ~( =( 'cross_product'( 'domain_of'( 
% 3.44/3.82    'domain_of'( X ) ), 'domain_of'( 'domain_of'( X ) ) ), 'domain_of'( X ) )
% 3.44/3.82     ), ~( subclass( 'range_of'( X ), 'domain_of'( 'domain_of'( X ) ) ) ), 
% 3.44/3.82    operation( X ) ] )
% 3.44/3.82  , clause( 24276, [ ~( compatible( X, Y, Z ) ), function( X ) ] )
% 3.44/3.82  , clause( 24277, [ ~( compatible( X, Y, Z ) ), =( 'domain_of'( 'domain_of'( 
% 3.44/3.82    Y ) ), 'domain_of'( X ) ) ] )
% 3.44/3.82  , clause( 24278, [ ~( compatible( X, Y, Z ) ), subclass( 'range_of'( X ), 
% 3.44/3.82    'domain_of'( 'domain_of'( Z ) ) ) ] )
% 3.44/3.82  , clause( 24279, [ ~( function( X ) ), ~( =( 'domain_of'( 'domain_of'( Y )
% 3.44/3.82     ), 'domain_of'( X ) ) ), ~( subclass( 'range_of'( X ), 'domain_of'( 
% 3.44/3.82    'domain_of'( Z ) ) ) ), compatible( X, Y, Z ) ] )
% 3.44/3.82  , clause( 24280, [ ~( homomorphism( X, Y, Z ) ), operation( Y ) ] )
% 3.44/3.82  , clause( 24281, [ ~( homomorphism( X, Y, Z ) ), operation( Z ) ] )
% 3.44/3.82  , clause( 24282, [ ~( homomorphism( X, Y, Z ) ), compatible( X, Y, Z ) ] )
% 3.44/3.82  , clause( 24283, [ ~( homomorphism( X, Y, Z ) ), ~( member( 'ordered_pair'( 
% 3.44/3.82    T, U ), 'domain_of'( Y ) ) ), =( apply( Z, 'ordered_pair'( apply( X, T )
% 3.44/3.82    , apply( X, U ) ) ), apply( X, apply( Y, 'ordered_pair'( T, U ) ) ) ) ]
% 3.44/3.82     )
% 3.44/3.82  , clause( 24284, [ ~( operation( X ) ), ~( operation( Y ) ), ~( compatible( 
% 3.44/3.82    Z, X, Y ) ), member( 'ordered_pair'( 'not_homomorphism1'( Z, X, Y ), 
% 3.44/3.82    'not_homomorphism2'( Z, X, Y ) ), 'domain_of'( X ) ), homomorphism( Z, X
% 3.44/3.82    , Y ) ] )
% 3.44/3.82  , clause( 24285, [ ~( operation( X ) ), ~( operation( Y ) ), ~( compatible( 
% 3.44/3.82    Z, X, Y ) ), ~( =( apply( Y, 'ordered_pair'( apply( Z, 
% 3.44/3.82    'not_homomorphism1'( Z, X, Y ) ), apply( Z, 'not_homomorphism2'( Z, X, Y
% 3.44/3.82     ) ) ) ), apply( Z, apply( X, 'ordered_pair'( 'not_homomorphism1'( Z, X, 
% 3.44/3.82    Y ), 'not_homomorphism2'( Z, X, Y ) ) ) ) ) ), homomorphism( Z, X, Y ) ]
% 3.44/3.82     )
% 3.44/3.82  , clause( 24286, [ subclass( x, singleton( y ) ) ] )
% 3.44/3.82  , clause( 24287, [ ~( =( x, 'null_class' ) ) ] )
% 3.44/3.82  , clause( 24288, [ ~( =( singleton( y ), x ) ) ] )
% 3.44/3.82  ] ).
% 3.44/3.82  
% 3.44/3.82  
% 3.44/3.82  
% 3.44/3.82  subsumption(
% 3.44/3.82  clause( 0, [ ~( subclass( X, Y ) ), ~( member( Z, X ) ), member( Z, Y ) ]
% 3.44/3.82     )
% 3.44/3.82  , clause( 24195, [ ~( subclass( X, Y ) ), ~( member( Z, X ) ), member( Z, Y
% 3.44/3.82     ) ] )
% 3.44/3.82  , substitution( 0, [ :=( X, X ), :=( Y, Y ), :=( Z, Z )] ), 
% 3.44/3.82    permutation( 0, [ ==>( 0, 0 ), ==>( 1, 1 ), ==>( 2, 2 )] ) ).
% 3.44/3.82  
% 3.44/3.82  
% 3.44/3.82  subsumption(
% 3.44/3.82  clause( 1, [ member( 'not_subclass_element'( X, Y ), X ), subclass( X, Y )
% 3.44/3.82     ] )
% 3.44/3.82  , clause( 24196, [ member( 'not_subclass_element'( X, Y ), X ), subclass( X
% 3.44/3.82    , Y ) ] )
% 3.44/3.82  , substitution( 0, [ :=( X, X ), :=( Y, Y )] ), permutation( 0, [ ==>( 0, 0
% 3.44/3.82     ), ==>( 1, 1 )] ) ).
% 3.44/3.82  
% 3.44/3.82  
% 3.44/3.82  subsumption(
% 3.44/3.82  clause( 2, [ ~( member( 'not_subclass_element'( X, Y ), Y ) ), subclass( X
% 3.44/3.82    , Y ) ] )
% 3.44/3.82  , clause( 24197, [ ~( member( 'not_subclass_element'( X, Y ), Y ) ), 
% 3.44/3.82    subclass( X, Y ) ] )
% 3.44/3.82  , substitution( 0, [ :=( X, X ), :=( Y, Y )] ), permutation( 0, [ ==>( 0, 0
% 3.44/3.82     ), ==>( 1, 1 )] ) ).
% 3.44/3.82  
% 3.44/3.82  
% 3.44/3.82  subsumption(
% 3.44/3.82  clause( 4, [ ~( =( X, Y ) ), subclass( X, Y ) ] )
% 3.44/3.82  , clause( 24199, [ ~( =( X, Y ) ), subclass( X, Y ) ] )
% 3.44/3.82  , substitution( 0, [ :=( X, X ), :=( Y, Y )] ), permutation( 0, [ ==>( 0, 0
% 3.44/3.82     ), ==>( 1, 1 )] ) ).
% 3.44/3.82  
% 3.44/3.82  
% 3.44/3.82  subsumption(
% 3.44/3.82  clause( 5, [ ~( subclass( X, Y ) ), ~( subclass( Y, X ) ), =( X, Y ) ] )
% 3.44/3.82  , clause( 24201, [ ~( subclass( X, Y ) ), ~( subclass( Y, X ) ), =( X, Y )
% 3.44/3.82     ] )
% 3.44/3.82  , substitution( 0, [ :=( X, X ), :=( Y, Y )] ), permutation( 0, [ ==>( 0, 0
% 3.44/3.82     ), ==>( 1, 1 ), ==>( 2, 2 )] ) ).
% 3.44/3.82  
% 3.44/3.82  
% 3.44/3.82  subsumption(
% 3.44/3.82  clause( 6, [ ~( member( X, 'unordered_pair'( Y, Z ) ) ), =( X, Y ), =( X, Z
% 3.44/3.82     ) ] )
% 3.44/3.82  , clause( 24202, [ ~( member( X, 'unordered_pair'( Y, Z ) ) ), =( X, Y ), 
% 3.44/3.82    =( X, Z ) ] )
% 3.44/3.82  , substitution( 0, [ :=( X, X ), :=( Y, Y ), :=( Z, Z )] ), 
% 3.44/3.82    permutation( 0, [ ==>( 0, 0 ), ==>( 1, 1 ), ==>( 2, 2 )] ) ).
% 3.44/3.82  
% 3.44/3.82  
% 3.44/3.82  subsumption(
% 3.44/3.82  clause( 10, [ =( 'unordered_pair'( X, X ), singleton( X ) ) ] )
% 3.44/3.82  , clause( 24206, [ =( 'unordered_pair'( X, X ), singleton( X ) ) ] )
% 3.44/3.82  , substitution( 0, [ :=( X, X )] ), permutation( 0, [ ==>( 0, 0 )] ) ).
% 3.44/3.82  
% 3.44/3.82  
% 3.44/3.82  subsumption(
% 3.44/3.82  clause( 64, [ =( X, 'null_class' ), member( regular( X ), X ) ] )
% 3.44/3.82  , clause( 24260, [ =( X, 'null_class' ), member( regular( X ), X ) ] )
% 3.44/3.82  , substitution( 0, [ :=( X, X )] ), permutation( 0, [ ==>( 0, 0 ), ==>( 1, 
% 3.44/3.82    1 )] ) ).
% 3.44/3.82  
% 3.44/3.82  
% 3.44/3.82  subsumption(
% 3.44/3.82  clause( 90, [ subclass( x, singleton( y ) ) ] )
% 3.44/3.82  , clause( 24286, [ subclass( x, singleton( y ) ) ] )
% 3.44/3.82  , substitution( 0, [] ), permutation( 0, [ ==>( 0, 0 )] ) ).
% 3.44/3.82  
% 3.44/3.82  
% 3.44/3.82  subsumption(
% 3.44/3.82  clause( 91, [ ~( =( x, 'null_class' ) ) ] )
% 3.44/3.82  , clause( 24287, [ ~( =( x, 'null_class' ) ) ] )
% 3.44/3.82  , substitution( 0, [] ), permutation( 0, [ ==>( 0, 0 )] ) ).
% 3.44/3.82  
% 3.44/3.82  
% 3.44/3.82  subsumption(
% 3.44/3.82  clause( 92, [ ~( =( singleton( y ), x ) ) ] )
% 3.44/3.82  , clause( 24288, [ ~( =( singleton( y ), x ) ) ] )
% 3.44/3.82  , substitution( 0, [] ), permutation( 0, [ ==>( 0, 0 )] ) ).
% 3.44/3.82  
% 3.44/3.82  
% 3.44/3.82  eqswap(
% 3.44/3.82  clause( 24495, [ ~( =( Y, X ) ), subclass( X, Y ) ] )
% 3.44/3.82  , clause( 4, [ ~( =( X, Y ) ), subclass( X, Y ) ] )
% 3.44/3.82  , 0, substitution( 0, [ :=( X, X ), :=( Y, Y )] )).
% 3.44/3.82  
% 3.44/3.82  
% 3.44/3.82  eqrefl(
% 3.44/3.82  clause( 24496, [ subclass( X, X ) ] )
% 3.44/3.82  , clause( 24495, [ ~( =( Y, X ) ), subclass( X, Y ) ] )
% 3.44/3.82  , 0, substitution( 0, [ :=( X, X ), :=( Y, X )] )).
% 3.44/3.82  
% 3.44/3.82  
% 3.44/3.82  subsumption(
% 3.44/3.82  clause( 93, [ subclass( X, X ) ] )
% 3.44/3.82  , clause( 24496, [ subclass( X, X ) ] )
% 3.44/3.82  , substitution( 0, [ :=( X, X )] ), permutation( 0, [ ==>( 0, 0 )] ) ).
% 3.44/3.82  
% 3.44/3.82  
% 3.44/3.82  factor(
% 3.44/3.82  clause( 24503, [ ~( member( X, 'unordered_pair'( Y, Y ) ) ), =( X, Y ) ] )
% 3.44/3.82  , clause( 6, [ ~( member( X, 'unordered_pair'( Y, Z ) ) ), =( X, Y ), =( X
% 3.44/3.82    , Z ) ] )
% 3.44/3.82  , 1, 2, substitution( 0, [ :=( X, X ), :=( Y, Y ), :=( Z, Y )] )).
% 3.44/3.82  
% 3.44/3.82  
% 3.44/3.82  paramod(
% 3.44/3.82  clause( 24504, [ ~( member( X, singleton( Y ) ) ), =( X, Y ) ] )
% 3.44/3.82  , clause( 10, [ =( 'unordered_pair'( X, X ), singleton( X ) ) ] )
% 3.44/3.82  , 0, clause( 24503, [ ~( member( X, 'unordered_pair'( Y, Y ) ) ), =( X, Y )
% 3.44/3.82     ] )
% 3.44/3.82  , 0, 3, substitution( 0, [ :=( X, Y )] ), substitution( 1Cputime limit exceeded (core dumped)
%------------------------------------------------------------------------------