↑ Up

Bliksem---1.12.UNS-Ref.s

View TPTP
Problem
Process solution in
SystemOnTSTP
Download .tgz
%------------------------------------------------------------------------------
% File     : Bliksem---1.12
% Problem  : SET083-6 : TPTP v8.1.0. Bugfixed v2.1.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : bliksem %s

% Computer : n025.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 22:46:46 EDT 2022

% Result   : Unsatisfiable 1.10s 1.47s
% Output   : Refutation 1.10s
% Verified : 
% SZS Type : -

% Comments : 
%------------------------------------------------------------------------------
%----WARNING: Could not form TPTP format derivation
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.09  % Problem  : SET083-6 : TPTP v8.1.0. Bugfixed v2.1.0.
% 0.00/0.10  % Command  : bliksem %s
% 0.09/0.30  % Computer : n025.cluster.edu
% 0.09/0.30  % Model    : x86_64 x86_64
% 0.09/0.30  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.09/0.30  % Memory   : 8042.1875MB
% 0.09/0.30  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.09/0.30  % CPULimit : 300
% 0.09/0.30  % DateTime : Sun Jul 10 14:24:16 EDT 2022
% 0.09/0.30  % CPUTime  : 
% 0.65/1.02  *** allocated 10000 integers for termspace/termends
% 0.65/1.02  *** allocated 10000 integers for clauses
% 0.65/1.02  *** allocated 10000 integers for justifications
% 0.65/1.02  Bliksem 1.12
% 0.65/1.02  
% 0.65/1.02  
% 0.65/1.02  Automatic Strategy Selection
% 0.65/1.02  
% 0.65/1.02  Clauses:
% 0.65/1.02  [
% 0.65/1.02     [ ~( subclass( X, Y ) ), ~( member( Z, X ) ), member( Z, Y ) ],
% 0.65/1.02     [ member( 'not_subclass_element'( X, Y ), X ), subclass( X, Y ) ],
% 0.65/1.02     [ ~( member( 'not_subclass_element'( X, Y ), Y ) ), subclass( X, Y ) ]
% 0.65/1.02    ,
% 0.65/1.02     [ subclass( X, 'universal_class' ) ],
% 0.65/1.02     [ ~( =( X, Y ) ), subclass( X, Y ) ],
% 0.65/1.02     [ ~( =( X, Y ) ), subclass( Y, X ) ],
% 0.65/1.02     [ ~( subclass( X, Y ) ), ~( subclass( Y, X ) ), =( X, Y ) ],
% 0.65/1.02     [ ~( member( X, 'unordered_pair'( Y, Z ) ) ), =( X, Y ), =( X, Z ) ]
% 0.65/1.02    ,
% 0.65/1.02     [ ~( member( X, 'universal_class' ) ), member( X, 'unordered_pair'( X, Y
% 0.65/1.02     ) ) ],
% 0.65/1.02     [ ~( member( X, 'universal_class' ) ), member( X, 'unordered_pair'( Y, X
% 0.65/1.02     ) ) ],
% 0.65/1.02     [ member( 'unordered_pair'( X, Y ), 'universal_class' ) ],
% 0.65/1.02     [ =( 'unordered_pair'( X, X ), singleton( X ) ) ],
% 0.65/1.02     [ =( 'unordered_pair'( singleton( X ), 'unordered_pair'( X, singleton( Y
% 0.65/1.02     ) ) ), 'ordered_pair'( X, Y ) ) ],
% 0.65/1.02     [ ~( member( 'ordered_pair'( X, Y ), 'cross_product'( Z, T ) ) ), member( 
% 0.65/1.02    X, Z ) ],
% 0.65/1.02     [ ~( member( 'ordered_pair'( X, Y ), 'cross_product'( Z, T ) ) ), member( 
% 0.65/1.02    Y, T ) ],
% 0.65/1.02     [ ~( member( X, Y ) ), ~( member( Z, T ) ), member( 'ordered_pair'( X, Z
% 0.65/1.02     ), 'cross_product'( Y, T ) ) ],
% 0.65/1.02     [ ~( member( X, 'cross_product'( Y, Z ) ) ), =( 'ordered_pair'( first( X
% 0.65/1.02     ), second( X ) ), X ) ],
% 0.65/1.02     [ subclass( 'element_relation', 'cross_product'( 'universal_class', 
% 0.65/1.02    'universal_class' ) ) ],
% 0.65/1.02     [ ~( member( 'ordered_pair'( X, Y ), 'element_relation' ) ), member( X, 
% 0.65/1.02    Y ) ],
% 0.65/1.02     [ ~( member( 'ordered_pair'( X, Y ), 'cross_product'( 'universal_class'
% 0.65/1.02    , 'universal_class' ) ) ), ~( member( X, Y ) ), member( 'ordered_pair'( X
% 0.65/1.02    , Y ), 'element_relation' ) ],
% 0.65/1.02     [ ~( member( X, intersection( Y, Z ) ) ), member( X, Y ) ],
% 0.65/1.02     [ ~( member( X, intersection( Y, Z ) ) ), member( X, Z ) ],
% 0.65/1.02     [ ~( member( X, Y ) ), ~( member( X, Z ) ), member( X, intersection( Y, 
% 0.65/1.02    Z ) ) ],
% 0.65/1.02     [ ~( member( X, complement( Y ) ) ), ~( member( X, Y ) ) ],
% 0.65/1.02     [ ~( member( X, 'universal_class' ) ), member( X, complement( Y ) ), 
% 0.65/1.02    member( X, Y ) ],
% 0.65/1.02     [ =( complement( intersection( complement( X ), complement( Y ) ) ), 
% 0.65/1.02    union( X, Y ) ) ],
% 0.65/1.02     [ =( intersection( complement( intersection( X, Y ) ), complement( 
% 0.65/1.02    intersection( complement( X ), complement( Y ) ) ) ), 
% 0.65/1.02    'symmetric_difference'( X, Y ) ) ],
% 0.65/1.02     [ =( intersection( X, 'cross_product'( Y, Z ) ), restrict( X, Y, Z ) ) ]
% 0.65/1.02    ,
% 0.65/1.02     [ =( intersection( 'cross_product'( X, Y ), Z ), restrict( Z, X, Y ) ) ]
% 0.65/1.02    ,
% 0.65/1.02     [ ~( =( restrict( X, singleton( Y ), 'universal_class' ), 'null_class' )
% 0.65/1.02     ), ~( member( Y, 'domain_of'( X ) ) ) ],
% 0.65/1.02     [ ~( member( X, 'universal_class' ) ), =( restrict( Y, singleton( X ), 
% 0.65/1.02    'universal_class' ), 'null_class' ), member( X, 'domain_of'( Y ) ) ],
% 0.65/1.02     [ subclass( rotate( X ), 'cross_product'( 'cross_product'( 
% 0.65/1.02    'universal_class', 'universal_class' ), 'universal_class' ) ) ],
% 0.65/1.02     [ ~( member( 'ordered_pair'( 'ordered_pair'( X, Y ), Z ), rotate( T ) )
% 0.65/1.02     ), member( 'ordered_pair'( 'ordered_pair'( Y, Z ), X ), T ) ],
% 0.65/1.02     [ ~( member( 'ordered_pair'( 'ordered_pair'( X, Y ), Z ), T ) ), ~( 
% 0.65/1.02    member( 'ordered_pair'( 'ordered_pair'( Z, X ), Y ), 'cross_product'( 
% 0.65/1.02    'cross_product'( 'universal_class', 'universal_class' ), 
% 0.65/1.02    'universal_class' ) ) ), member( 'ordered_pair'( 'ordered_pair'( Z, X ), 
% 0.65/1.02    Y ), rotate( T ) ) ],
% 0.65/1.02     [ subclass( flip( X ), 'cross_product'( 'cross_product'( 
% 0.65/1.02    'universal_class', 'universal_class' ), 'universal_class' ) ) ],
% 0.65/1.02     [ ~( member( 'ordered_pair'( 'ordered_pair'( X, Y ), Z ), flip( T ) ) )
% 0.65/1.02    , member( 'ordered_pair'( 'ordered_pair'( Y, X ), Z ), T ) ],
% 0.65/1.02     [ ~( member( 'ordered_pair'( 'ordered_pair'( X, Y ), Z ), T ) ), ~( 
% 0.65/1.02    member( 'ordered_pair'( 'ordered_pair'( Y, X ), Z ), 'cross_product'( 
% 0.65/1.02    'cross_product'( 'universal_class', 'universal_class' ), 
% 0.65/1.02    'universal_class' ) ) ), member( 'ordered_pair'( 'ordered_pair'( Y, X ), 
% 0.65/1.02    Z ), flip( T ) ) ],
% 0.65/1.02     [ =( 'domain_of'( flip( 'cross_product'( X, 'universal_class' ) ) ), 
% 0.65/1.02    inverse( X ) ) ],
% 0.65/1.02     [ =( 'domain_of'( inverse( X ) ), 'range_of'( X ) ) ],
% 0.65/1.02     [ =( first( 'not_subclass_element'( restrict( X, Y, singleton( Z ) ), 
% 0.65/1.02    'null_class' ) ), domain( X, Y, Z ) ) ],
% 0.65/1.02     [ =( second( 'not_subclass_element'( restrict( X, singleton( Y ), Z ), 
% 0.65/1.02    'null_class' ) ), range( X, Y, Z ) ) ],
% 0.65/1.02     [ =( 'range_of'( restrict( X, Y, 'universal_class' ) ), image( X, Y ) )
% 0.65/1.02     ],
% 0.65/1.02     [ =( union( X, singleton( X ) ), successor( X ) ) ],
% 0.65/1.02     [ subclass( 'successor_relation', 'cross_product'( 'universal_class', 
% 0.65/1.02    'universal_class' ) ) ],
% 0.65/1.02     [ ~( member( 'ordered_pair'( X, Y ), 'successor_relation' ) ), =( 
% 0.65/1.02    successor( X ), Y ) ],
% 0.65/1.02     [ ~( =( successor( X ), Y ) ), ~( member( 'ordered_pair'( X, Y ), 
% 0.65/1.02    'cross_product'( 'universal_class', 'universal_class' ) ) ), member( 
% 0.65/1.02    'ordered_pair'( X, Y ), 'successor_relation' ) ],
% 0.65/1.02     [ ~( inductive( X ) ), member( 'null_class', X ) ],
% 0.65/1.02     [ ~( inductive( X ) ), subclass( image( 'successor_relation', X ), X ) ]
% 0.65/1.02    ,
% 0.65/1.02     [ ~( member( 'null_class', X ) ), ~( subclass( image( 
% 0.65/1.02    'successor_relation', X ), X ) ), inductive( X ) ],
% 0.65/1.02     [ inductive( omega ) ],
% 0.65/1.02     [ ~( inductive( X ) ), subclass( omega, X ) ],
% 0.65/1.02     [ member( omega, 'universal_class' ) ],
% 0.65/1.02     [ =( 'domain_of'( restrict( 'element_relation', 'universal_class', X ) )
% 0.65/1.02    , 'sum_class'( X ) ) ],
% 0.65/1.02     [ ~( member( X, 'universal_class' ) ), member( 'sum_class'( X ), 
% 0.65/1.02    'universal_class' ) ],
% 0.65/1.02     [ =( complement( image( 'element_relation', complement( X ) ) ), 
% 0.65/1.02    'power_class'( X ) ) ],
% 0.65/1.02     [ ~( member( X, 'universal_class' ) ), member( 'power_class'( X ), 
% 0.65/1.02    'universal_class' ) ],
% 0.65/1.02     [ subclass( compose( X, Y ), 'cross_product'( 'universal_class', 
% 0.65/1.02    'universal_class' ) ) ],
% 0.65/1.02     [ ~( member( 'ordered_pair'( X, Y ), compose( Z, T ) ) ), member( Y, 
% 0.65/1.02    image( Z, image( T, singleton( X ) ) ) ) ],
% 0.65/1.02     [ ~( member( X, image( Y, image( Z, singleton( T ) ) ) ) ), ~( member( 
% 0.65/1.02    'ordered_pair'( T, X ), 'cross_product'( 'universal_class', 
% 0.65/1.02    'universal_class' ) ) ), member( 'ordered_pair'( T, X ), compose( Y, Z )
% 0.65/1.02     ) ],
% 0.65/1.02     [ ~( 'single_valued_class'( X ) ), subclass( compose( X, inverse( X ) )
% 0.65/1.02    , 'identity_relation' ) ],
% 0.65/1.02     [ ~( subclass( compose( X, inverse( X ) ), 'identity_relation' ) ), 
% 0.65/1.02    'single_valued_class'( X ) ],
% 0.65/1.02     [ ~( function( X ) ), subclass( X, 'cross_product'( 'universal_class', 
% 0.65/1.02    'universal_class' ) ) ],
% 0.65/1.02     [ ~( function( X ) ), subclass( compose( X, inverse( X ) ), 
% 0.65/1.02    'identity_relation' ) ],
% 0.65/1.02     [ ~( subclass( X, 'cross_product'( 'universal_class', 'universal_class'
% 0.65/1.02     ) ) ), ~( subclass( compose( X, inverse( X ) ), 'identity_relation' ) )
% 0.65/1.02    , function( X ) ],
% 0.65/1.02     [ ~( function( X ) ), ~( member( Y, 'universal_class' ) ), member( image( 
% 0.65/1.02    X, Y ), 'universal_class' ) ],
% 0.65/1.02     [ =( X, 'null_class' ), member( regular( X ), X ) ],
% 0.65/1.02     [ =( X, 'null_class' ), =( intersection( X, regular( X ) ), 'null_class'
% 0.65/1.02     ) ],
% 0.65/1.02     [ =( 'sum_class'( image( X, singleton( Y ) ) ), apply( X, Y ) ) ],
% 0.65/1.02     [ function( choice ) ],
% 0.65/1.02     [ ~( member( X, 'universal_class' ) ), =( X, 'null_class' ), member( 
% 0.65/1.02    apply( choice, X ), X ) ],
% 0.65/1.02     [ ~( 'one_to_one'( X ) ), function( X ) ],
% 0.65/1.02     [ ~( 'one_to_one'( X ) ), function( inverse( X ) ) ],
% 0.65/1.02     [ ~( function( inverse( X ) ) ), ~( function( X ) ), 'one_to_one'( X ) ]
% 0.65/1.02    ,
% 0.65/1.02     [ =( intersection( 'cross_product'( 'universal_class', 'universal_class'
% 0.65/1.02     ), intersection( 'cross_product'( 'universal_class', 'universal_class' )
% 0.65/1.02    , complement( compose( complement( 'element_relation' ), inverse( 
% 0.65/1.02    'element_relation' ) ) ) ) ), 'subset_relation' ) ],
% 0.65/1.02     [ =( intersection( inverse( 'subset_relation' ), 'subset_relation' ), 
% 0.65/1.02    'identity_relation' ) ],
% 0.65/1.02     [ =( complement( 'domain_of'( intersection( X, 'identity_relation' ) ) )
% 0.65/1.02    , diagonalise( X ) ) ],
% 0.65/1.02     [ =( intersection( 'domain_of'( X ), diagonalise( compose( inverse( 
% 0.65/1.02    'element_relation' ), X ) ) ), cantor( X ) ) ],
% 0.65/1.02     [ ~( operation( X ) ), function( X ) ],
% 0.65/1.02     [ ~( operation( X ) ), =( 'cross_product'( 'domain_of'( 'domain_of'( X )
% 0.65/1.02     ), 'domain_of'( 'domain_of'( X ) ) ), 'domain_of'( X ) ) ],
% 0.65/1.02     [ ~( operation( X ) ), subclass( 'range_of'( X ), 'domain_of'( 
% 1.10/1.47    'domain_of'( X ) ) ) ],
% 1.10/1.47     [ ~( function( X ) ), ~( =( 'cross_product'( 'domain_of'( 'domain_of'( X
% 1.10/1.47     ) ), 'domain_of'( 'domain_of'( X ) ) ), 'domain_of'( X ) ) ), ~( 
% 1.10/1.47    subclass( 'range_of'( X ), 'domain_of'( 'domain_of'( X ) ) ) ), operation( 
% 1.10/1.47    X ) ],
% 1.10/1.47     [ ~( compatible( X, Y, Z ) ), function( X ) ],
% 1.10/1.47     [ ~( compatible( X, Y, Z ) ), =( 'domain_of'( 'domain_of'( Y ) ), 
% 1.10/1.47    'domain_of'( X ) ) ],
% 1.10/1.47     [ ~( compatible( X, Y, Z ) ), subclass( 'range_of'( X ), 'domain_of'( 
% 1.10/1.47    'domain_of'( Z ) ) ) ],
% 1.10/1.47     [ ~( function( X ) ), ~( =( 'domain_of'( 'domain_of'( Y ) ), 'domain_of'( 
% 1.10/1.47    X ) ) ), ~( subclass( 'range_of'( X ), 'domain_of'( 'domain_of'( Z ) ) )
% 1.10/1.47     ), compatible( X, Y, Z ) ],
% 1.10/1.47     [ ~( homomorphism( X, Y, Z ) ), operation( Y ) ],
% 1.10/1.47     [ ~( homomorphism( X, Y, Z ) ), operation( Z ) ],
% 1.10/1.47     [ ~( homomorphism( X, Y, Z ) ), compatible( X, Y, Z ) ],
% 1.10/1.47     [ ~( homomorphism( X, Y, Z ) ), ~( member( 'ordered_pair'( T, U ), 
% 1.10/1.47    'domain_of'( Y ) ) ), =( apply( Z, 'ordered_pair'( apply( X, T ), apply( 
% 1.10/1.47    X, U ) ) ), apply( X, apply( Y, 'ordered_pair'( T, U ) ) ) ) ],
% 1.10/1.47     [ ~( operation( X ) ), ~( operation( Y ) ), ~( compatible( Z, X, Y ) ), 
% 1.10/1.47    member( 'ordered_pair'( 'not_homomorphism1'( Z, X, Y ), 
% 1.10/1.47    'not_homomorphism2'( Z, X, Y ) ), 'domain_of'( X ) ), homomorphism( Z, X
% 1.10/1.47    , Y ) ],
% 1.10/1.47     [ ~( operation( X ) ), ~( operation( Y ) ), ~( compatible( Z, X, Y ) ), 
% 1.10/1.47    ~( =( apply( Y, 'ordered_pair'( apply( Z, 'not_homomorphism1'( Z, X, Y )
% 1.10/1.47     ), apply( Z, 'not_homomorphism2'( Z, X, Y ) ) ) ), apply( Z, apply( X, 
% 1.10/1.47    'ordered_pair'( 'not_homomorphism1'( Z, X, Y ), 'not_homomorphism2'( Z, X
% 1.10/1.47    , Y ) ) ) ) ) ), homomorphism( Z, X, Y ) ],
% 1.10/1.47     [ =( singleton( x ), singleton( y ) ) ],
% 1.10/1.47     [ member( x, 'universal_class' ) ],
% 1.10/1.47     [ ~( =( x, y ) ) ]
% 1.10/1.47  ] .
% 1.10/1.47  
% 1.10/1.47  
% 1.10/1.47  percentage equality = 0.222826, percentage horn = 0.914894
% 1.10/1.47  This is a problem with some equality
% 1.10/1.47  
% 1.10/1.47  
% 1.10/1.47  
% 1.10/1.47  Options Used:
% 1.10/1.47  
% 1.10/1.47  useres =            1
% 1.10/1.47  useparamod =        1
% 1.10/1.47  useeqrefl =         1
% 1.10/1.47  useeqfact =         1
% 1.10/1.47  usefactor =         1
% 1.10/1.47  usesimpsplitting =  0
% 1.10/1.47  usesimpdemod =      5
% 1.10/1.47  usesimpres =        3
% 1.10/1.47  
% 1.10/1.47  resimpinuse      =  1000
% 1.10/1.47  resimpclauses =     20000
% 1.10/1.47  substype =          eqrewr
% 1.10/1.47  backwardsubs =      1
% 1.10/1.47  selectoldest =      5
% 1.10/1.47  
% 1.10/1.47  litorderings [0] =  split
% 1.10/1.47  litorderings [1] =  extend the termordering, first sorting on arguments
% 1.10/1.47  
% 1.10/1.47  termordering =      kbo
% 1.10/1.47  
% 1.10/1.47  litapriori =        0
% 1.10/1.47  termapriori =       1
% 1.10/1.47  litaposteriori =    0
% 1.10/1.47  termaposteriori =   0
% 1.10/1.47  demodaposteriori =  0
% 1.10/1.47  ordereqreflfact =   0
% 1.10/1.47  
% 1.10/1.47  litselect =         negord
% 1.10/1.47  
% 1.10/1.47  maxweight =         15
% 1.10/1.47  maxdepth =          30000
% 1.10/1.47  maxlength =         115
% 1.10/1.47  maxnrvars =         195
% 1.10/1.47  excuselevel =       1
% 1.10/1.47  increasemaxweight = 1
% 1.10/1.47  
% 1.10/1.47  maxselected =       10000000
% 1.10/1.47  maxnrclauses =      10000000
% 1.10/1.47  
% 1.10/1.47  showgenerated =    0
% 1.10/1.47  showkept =         0
% 1.10/1.47  showselected =     0
% 1.10/1.47  showdeleted =      0
% 1.10/1.47  showresimp =       1
% 1.10/1.47  showstatus =       2000
% 1.10/1.47  
% 1.10/1.47  prologoutput =     1
% 1.10/1.47  nrgoals =          5000000
% 1.10/1.47  totalproof =       1
% 1.10/1.47  
% 1.10/1.47  Symbols occurring in the translation:
% 1.10/1.47  
% 1.10/1.47  {}  [0, 0]      (w:1, o:2, a:1, s:1, b:0), 
% 1.10/1.47  .  [1, 2]      (w:1, o:56, a:1, s:1, b:0), 
% 1.10/1.47  !  [4, 1]      (w:0, o:31, a:1, s:1, b:0), 
% 1.10/1.47  =  [13, 2]      (w:1, o:0, a:0, s:1, b:0), 
% 1.10/1.47  ==>  [14, 2]      (w:1, o:0, a:0, s:1, b:0), 
% 1.10/1.47  subclass  [41, 2]      (w:1, o:81, a:1, s:1, b:0), 
% 1.10/1.47  member  [43, 2]      (w:1, o:82, a:1, s:1, b:0), 
% 1.10/1.47  'not_subclass_element'  [44, 2]      (w:1, o:83, a:1, s:1, b:0), 
% 1.10/1.47  'universal_class'  [45, 0]      (w:1, o:21, a:1, s:1, b:0), 
% 1.10/1.47  'unordered_pair'  [46, 2]      (w:1, o:84, a:1, s:1, b:0), 
% 1.10/1.47  singleton  [47, 1]      (w:1, o:39, a:1, s:1, b:0), 
% 1.10/1.47  'ordered_pair'  [48, 2]      (w:1, o:85, a:1, s:1, b:0), 
% 1.10/1.47  'cross_product'  [50, 2]      (w:1, o:86, a:1, s:1, b:0), 
% 1.10/1.47  first  [52, 1]      (w:1, o:40, a:1, s:1, b:0), 
% 1.10/1.47  second  [53, 1]      (w:1, o:41, a:1, s:1, b:0), 
% 1.10/1.47  'element_relation'  [54, 0]      (w:1, o:25, a:1, s:1, b:0), 
% 1.10/1.47  intersection  [55, 2]      (w:1, o:88, a:1, s:1, b:0), 
% 1.10/1.47  complement  [56, 1]      (w:1, o:42, a:1, s:1, b:0), 
% 1.10/1.47  union  [57, 2]      (w:1, o:89, a:1, s:1, b:0), 
% 1.10/1.47  'symmetric_difference'  [58, 2]      (w:1, o:90, a:1, s:1, b:0), 
% 1.10/1.47  restrict  [60, 3]      (w:1, o:93, a:1, s:1, b:0), 
% 1.10/1.47  'null_class'  [61, 0]      (w:1, o:26, a:1, s:1, b:0), 
% 1.10/1.47  'domain_of'  [62, 1]      (w:1, o:44, a:1, s:1, b:0), 
% 1.10/1.47  rotate  [63, 1]      (w:1, o:36, a:1, s:1, b:0), 
% 1.10/1.47  flip  [65, 1]      (w:1, o:45, a:1, s:1, b:0), 
% 1.10/1.47  inverse  [66, 1]      (w:1, o:46, a:1, s:1, b:0), 
% 1.10/1.47  'range_of'  [67, 1]      (w:1, o:37, a:1, s:1, b:0), 
% 1.10/1.47  domain  [68, 3]      (w:1, o:95, a:1, s:1, b:0), 
% 1.10/1.47  range  [69, 3]      (w:1, o:96, a:1, s:1, b:0), 
% 1.10/1.47  image  [70, 2]      (w:1, o:87, a:1, s:1, b:0), 
% 1.10/1.47  successor  [71, 1]      (w:1, o:47, a:1, s:1, b:0), 
% 1.10/1.47  'successor_relation'  [72, 0]      (w:1, o:6, a:1, s:1, b:0), 
% 1.10/1.47  inductive  [73, 1]      (w:1, o:48, a:1, s:1, b:0), 
% 1.10/1.47  omega  [74, 0]      (w:1, o:9, a:1, s:1, b:0), 
% 1.10/1.47  'sum_class'  [75, 1]      (w:1, o:49, a:1, s:1, b:0), 
% 1.10/1.47  'power_class'  [76, 1]      (w:1, o:52, a:1, s:1, b:0), 
% 1.10/1.47  compose  [78, 2]      (w:1, o:91, a:1, s:1, b:0), 
% 1.10/1.47  'single_valued_class'  [79, 1]      (w:1, o:53, a:1, s:1, b:0), 
% 1.10/1.47  'identity_relation'  [80, 0]      (w:1, o:27, a:1, s:1, b:0), 
% 1.10/1.47  function  [82, 1]      (w:1, o:54, a:1, s:1, b:0), 
% 1.10/1.47  regular  [83, 1]      (w:1, o:38, a:1, s:1, b:0), 
% 1.10/1.47  apply  [84, 2]      (w:1, o:92, a:1, s:1, b:0), 
% 1.10/1.47  choice  [85, 0]      (w:1, o:28, a:1, s:1, b:0), 
% 1.10/1.47  'one_to_one'  [86, 1]      (w:1, o:50, a:1, s:1, b:0), 
% 1.10/1.47  'subset_relation'  [87, 0]      (w:1, o:5, a:1, s:1, b:0), 
% 1.10/1.47  diagonalise  [88, 1]      (w:1, o:55, a:1, s:1, b:0), 
% 1.10/1.47  cantor  [89, 1]      (w:1, o:43, a:1, s:1, b:0), 
% 1.10/1.47  operation  [90, 1]      (w:1, o:51, a:1, s:1, b:0), 
% 1.10/1.47  compatible  [94, 3]      (w:1, o:94, a:1, s:1, b:0), 
% 1.10/1.47  homomorphism  [95, 3]      (w:1, o:97, a:1, s:1, b:0), 
% 1.10/1.47  'not_homomorphism1'  [96, 3]      (w:1, o:98, a:1, s:1, b:0), 
% 1.10/1.47  'not_homomorphism2'  [97, 3]      (w:1, o:99, a:1, s:1, b:0), 
% 1.10/1.47  x  [98, 0]      (w:1, o:29, a:1, s:1, b:0), 
% 1.10/1.47  y  [99, 0]      (w:1, o:30, a:1, s:1, b:0).
% 1.10/1.47  
% 1.10/1.47  
% 1.10/1.47  Starting Search:
% 1.10/1.47  
% 1.10/1.47  Resimplifying inuse:
% 1.10/1.47  Done
% 1.10/1.47  
% 1.10/1.47  
% 1.10/1.47  Intermediate Status:
% 1.10/1.47  Generated:    5110
% 1.10/1.47  Kept:         2009
% 1.10/1.47  Inuse:        108
% 1.10/1.47  Deleted:      6
% 1.10/1.47  Deletedinuse: 2
% 1.10/1.47  
% 1.10/1.47  Resimplifying inuse:
% 1.10/1.47  Done
% 1.10/1.47  
% 1.10/1.47  Resimplifying inuse:
% 1.10/1.47  Done
% 1.10/1.47  
% 1.10/1.47  
% 1.10/1.47  Intermediate Status:
% 1.10/1.47  Generated:    9959
% 1.10/1.47  Kept:         4045
% 1.10/1.47  Inuse:        188
% 1.10/1.47  Deleted:      17
% 1.10/1.47  Deletedinuse: 7
% 1.10/1.47  
% 1.10/1.47  Resimplifying inuse:
% 1.10/1.47  Done
% 1.10/1.47  
% 1.10/1.47  Resimplifying inuse:
% 1.10/1.47  Done
% 1.10/1.47  
% 1.10/1.47  
% 1.10/1.47  Intermediate Status:
% 1.10/1.47  Generated:    14121
% 1.10/1.47  Kept:         6048
% 1.10/1.47  Inuse:        246
% 1.10/1.47  Deleted:      25
% 1.10/1.47  Deletedinuse: 10
% 1.10/1.47  
% 1.10/1.47  Resimplifying inuse:
% 1.10/1.47  Done
% 1.10/1.47  
% 1.10/1.47  Resimplifying inuse:
% 1.10/1.47  Done
% 1.10/1.47  
% 1.10/1.47  
% 1.10/1.47  Intermediate Status:
% 1.10/1.47  Generated:    19336
% 1.10/1.47  Kept:         8067
% 1.10/1.47  Inuse:        298
% 1.10/1.47  Deleted:      45
% 1.10/1.47  Deletedinuse: 27
% 1.10/1.47  
% 1.10/1.47  Resimplifying inuse:
% 1.10/1.47  Done
% 1.10/1.47  
% 1.10/1.47  Resimplifying inuse:
% 1.10/1.47  Done
% 1.10/1.47  
% 1.10/1.47  
% 1.10/1.47  Bliksems!, er is een bewijs:
% 1.10/1.47  % SZS status Unsatisfiable
% 1.10/1.47  % SZS output start Refutation
% 1.10/1.47  
% 1.10/1.47  clause( 4, [ ~( =( X, Y ) ), subclass( X, Y ) ] )
% 1.10/1.47  .
% 1.10/1.47  clause( 5, [ ~( subclass( X, Y ) ), ~( subclass( Y, X ) ), =( X, Y ) ] )
% 1.10/1.47  .
% 1.10/1.47  clause( 6, [ ~( member( X, 'unordered_pair'( Y, Z ) ) ), =( X, Y ), =( X, Z
% 1.10/1.47     ) ] )
% 1.10/1.47  .
% 1.10/1.47  clause( 8, [ ~( member( X, 'universal_class' ) ), member( X, 
% 1.10/1.47    'unordered_pair'( Y, X ) ) ] )
% 1.10/1.47  .
% 1.10/1.47  clause( 10, [ =( 'unordered_pair'( X, X ), singleton( X ) ) ] )
% 1.10/1.47  .
% 1.10/1.47  clause( 90, [ =( singleton( y ), singleton( x ) ) ] )
% 1.10/1.47  .
% 1.10/1.47  clause( 91, [ member( x, 'universal_class' ) ] )
% 1.10/1.47  .
% 1.10/1.47  clause( 92, [ ~( =( y, x ) ) ] )
% 1.10/1.47  .
% 1.10/1.47  clause( 94, [ =( X, Y ), ~( member( X, singleton( Y ) ) ) ] )
% 1.10/1.47  .
% 1.10/1.47  clause( 123, [ =( X, Y ), ~( =( Y, X ) ) ] )
% 1.10/1.47  .
% 1.10/1.47  clause( 171, [ ~( =( X, x ) ), ~( =( X, y ) ) ] )
% 1.10/1.47  .
% 1.10/1.47  clause( 444, [ member( x, 'unordered_pair'( X, x ) ) ] )
% 1.10/1.47  .
% 1.10/1.47  clause( 492, [ member( x, singleton( x ) ) ] )
% 1.10/1.47  .
% 1.10/1.47  clause( 10524, [ ~( =( Y, X ) ), ~( =( Y, y ) ), ~( member( x, singleton( X
% 1.10/1.47     ) ) ) ] )
% 1.10/1.47  .
% 1.10/1.47  clause( 10662, [ ~( =( X, y ) ) ] )
% 1.10/1.47  .
% 1.10/1.47  clause( 10663, [] )
% 1.10/1.47  .
% 1.10/1.47  
% 1.10/1.47  
% 1.10/1.47  % SZS output end Refutation
% 1.10/1.47  found a proof!
% 1.10/1.47  
% 1.10/1.47  % ABCDEFGHIJKLMNOPQRSTUVWXYZ
% 1.10/1.47  
% 1.10/1.47  initialclauses(
% 1.10/1.47  [ clause( 10665, [ ~( subclass( X, Y ) ), ~( member( Z, X ) ), member( Z, Y
% 1.10/1.47     ) ] )
% 1.10/1.47  , clause( 10666, [ member( 'not_subclass_element'( X, Y ), X ), subclass( X
% 1.10/1.47    , Y ) ] )
% 1.10/1.47  , clause( 10667, [ ~( member( 'not_subclass_element'( X, Y ), Y ) ), 
% 1.10/1.47    subclass( X, Y ) ] )
% 1.10/1.47  , clause( 10668, [ subclass( X, 'universal_class' ) ] )
% 1.10/1.47  , clause( 10669, [ ~( =( X, Y ) ), subclass( X, Y ) ] )
% 1.10/1.47  , clause( 10670, [ ~( =( X, Y ) ), subclass( Y, X ) ] )
% 1.10/1.47  , clause( 10671, [ ~( subclass( X, Y ) ), ~( subclass( Y, X ) ), =( X, Y )
% 1.10/1.47     ] )
% 1.10/1.47  , clause( 10672, [ ~( member( X, 'unordered_pair'( Y, Z ) ) ), =( X, Y ), 
% 1.10/1.47    =( X, Z ) ] )
% 1.10/1.47  , clause( 10673, [ ~( member( X, 'universal_class' ) ), member( X, 
% 1.10/1.47    'unordered_pair'( X, Y ) ) ] )
% 1.10/1.47  , clause( 10674, [ ~( member( X, 'universal_class' ) ), member( X, 
% 1.10/1.47    'unordered_pair'( Y, X ) ) ] )
% 1.10/1.47  , clause( 10675, [ member( 'unordered_pair'( X, Y ), 'universal_class' ) ]
% 1.10/1.47     )
% 1.10/1.47  , clause( 10676, [ =( 'unordered_pair'( X, X ), singleton( X ) ) ] )
% 1.10/1.47  , clause( 10677, [ =( 'unordered_pair'( singleton( X ), 'unordered_pair'( X
% 1.10/1.47    , singleton( Y ) ) ), 'ordered_pair'( X, Y ) ) ] )
% 1.10/1.47  , clause( 10678, [ ~( member( 'ordered_pair'( X, Y ), 'cross_product'( Z, T
% 1.10/1.47     ) ) ), member( X, Z ) ] )
% 1.10/1.47  , clause( 10679, [ ~( member( 'ordered_pair'( X, Y ), 'cross_product'( Z, T
% 1.10/1.47     ) ) ), member( Y, T ) ] )
% 1.10/1.47  , clause( 10680, [ ~( member( X, Y ) ), ~( member( Z, T ) ), member( 
% 1.10/1.47    'ordered_pair'( X, Z ), 'cross_product'( Y, T ) ) ] )
% 1.10/1.47  , clause( 10681, [ ~( member( X, 'cross_product'( Y, Z ) ) ), =( 
% 1.10/1.47    'ordered_pair'( first( X ), second( X ) ), X ) ] )
% 1.10/1.47  , clause( 10682, [ subclass( 'element_relation', 'cross_product'( 
% 1.10/1.47    'universal_class', 'universal_class' ) ) ] )
% 1.10/1.47  , clause( 10683, [ ~( member( 'ordered_pair'( X, Y ), 'element_relation' )
% 1.10/1.47     ), member( X, Y ) ] )
% 1.10/1.47  , clause( 10684, [ ~( member( 'ordered_pair'( X, Y ), 'cross_product'( 
% 1.10/1.47    'universal_class', 'universal_class' ) ) ), ~( member( X, Y ) ), member( 
% 1.10/1.47    'ordered_pair'( X, Y ), 'element_relation' ) ] )
% 1.10/1.47  , clause( 10685, [ ~( member( X, intersection( Y, Z ) ) ), member( X, Y ) ]
% 1.10/1.47     )
% 1.10/1.47  , clause( 10686, [ ~( member( X, intersection( Y, Z ) ) ), member( X, Z ) ]
% 1.10/1.47     )
% 1.10/1.47  , clause( 10687, [ ~( member( X, Y ) ), ~( member( X, Z ) ), member( X, 
% 1.10/1.47    intersection( Y, Z ) ) ] )
% 1.10/1.47  , clause( 10688, [ ~( member( X, complement( Y ) ) ), ~( member( X, Y ) ) ]
% 1.10/1.47     )
% 1.10/1.47  , clause( 10689, [ ~( member( X, 'universal_class' ) ), member( X, 
% 1.10/1.47    complement( Y ) ), member( X, Y ) ] )
% 1.10/1.47  , clause( 10690, [ =( complement( intersection( complement( X ), complement( 
% 1.10/1.47    Y ) ) ), union( X, Y ) ) ] )
% 1.10/1.47  , clause( 10691, [ =( intersection( complement( intersection( X, Y ) ), 
% 1.10/1.47    complement( intersection( complement( X ), complement( Y ) ) ) ), 
% 1.10/1.47    'symmetric_difference'( X, Y ) ) ] )
% 1.10/1.47  , clause( 10692, [ =( intersection( X, 'cross_product'( Y, Z ) ), restrict( 
% 1.10/1.47    X, Y, Z ) ) ] )
% 1.10/1.47  , clause( 10693, [ =( intersection( 'cross_product'( X, Y ), Z ), restrict( 
% 1.10/1.47    Z, X, Y ) ) ] )
% 1.10/1.47  , clause( 10694, [ ~( =( restrict( X, singleton( Y ), 'universal_class' ), 
% 1.10/1.47    'null_class' ) ), ~( member( Y, 'domain_of'( X ) ) ) ] )
% 1.10/1.47  , clause( 10695, [ ~( member( X, 'universal_class' ) ), =( restrict( Y, 
% 1.10/1.47    singleton( X ), 'universal_class' ), 'null_class' ), member( X, 
% 1.10/1.47    'domain_of'( Y ) ) ] )
% 1.10/1.47  , clause( 10696, [ subclass( rotate( X ), 'cross_product'( 'cross_product'( 
% 1.10/1.47    'universal_class', 'universal_class' ), 'universal_class' ) ) ] )
% 1.10/1.47  , clause( 10697, [ ~( member( 'ordered_pair'( 'ordered_pair'( X, Y ), Z ), 
% 1.10/1.47    rotate( T ) ) ), member( 'ordered_pair'( 'ordered_pair'( Y, Z ), X ), T )
% 1.10/1.47     ] )
% 1.10/1.47  , clause( 10698, [ ~( member( 'ordered_pair'( 'ordered_pair'( X, Y ), Z ), 
% 1.10/1.47    T ) ), ~( member( 'ordered_pair'( 'ordered_pair'( Z, X ), Y ), 
% 1.10/1.47    'cross_product'( 'cross_product'( 'universal_class', 'universal_class' )
% 1.10/1.47    , 'universal_class' ) ) ), member( 'ordered_pair'( 'ordered_pair'( Z, X )
% 1.10/1.47    , Y ), rotate( T ) ) ] )
% 1.10/1.47  , clause( 10699, [ subclass( flip( X ), 'cross_product'( 'cross_product'( 
% 1.10/1.47    'universal_class', 'universal_class' ), 'universal_class' ) ) ] )
% 1.10/1.47  , clause( 10700, [ ~( member( 'ordered_pair'( 'ordered_pair'( X, Y ), Z ), 
% 1.10/1.47    flip( T ) ) ), member( 'ordered_pair'( 'ordered_pair'( Y, X ), Z ), T ) ]
% 1.10/1.47     )
% 1.10/1.47  , clause( 10701, [ ~( member( 'ordered_pair'( 'ordered_pair'( X, Y ), Z ), 
% 1.10/1.47    T ) ), ~( member( 'ordered_pair'( 'ordered_pair'( Y, X ), Z ), 
% 1.10/1.47    'cross_product'( 'cross_product'( 'universal_class', 'universal_class' )
% 1.10/1.47    , 'universal_class' ) ) ), member( 'ordered_pair'( 'ordered_pair'( Y, X )
% 1.10/1.47    , Z ), flip( T ) ) ] )
% 1.10/1.47  , clause( 10702, [ =( 'domain_of'( flip( 'cross_product'( X, 
% 1.10/1.47    'universal_class' ) ) ), inverse( X ) ) ] )
% 1.10/1.47  , clause( 10703, [ =( 'domain_of'( inverse( X ) ), 'range_of'( X ) ) ] )
% 1.10/1.47  , clause( 10704, [ =( first( 'not_subclass_element'( restrict( X, Y, 
% 1.10/1.47    singleton( Z ) ), 'null_class' ) ), domain( X, Y, Z ) ) ] )
% 1.10/1.47  , clause( 10705, [ =( second( 'not_subclass_element'( restrict( X, 
% 1.10/1.47    singleton( Y ), Z ), 'null_class' ) ), range( X, Y, Z ) ) ] )
% 1.10/1.47  , clause( 10706, [ =( 'range_of'( restrict( X, Y, 'universal_class' ) ), 
% 1.10/1.47    image( X, Y ) ) ] )
% 1.10/1.47  , clause( 10707, [ =( union( X, singleton( X ) ), successor( X ) ) ] )
% 1.10/1.47  , clause( 10708, [ subclass( 'successor_relation', 'cross_product'( 
% 1.10/1.47    'universal_class', 'universal_class' ) ) ] )
% 1.10/1.47  , clause( 10709, [ ~( member( 'ordered_pair'( X, Y ), 'successor_relation'
% 1.10/1.47     ) ), =( successor( X ), Y ) ] )
% 1.10/1.47  , clause( 10710, [ ~( =( successor( X ), Y ) ), ~( member( 'ordered_pair'( 
% 1.10/1.47    X, Y ), 'cross_product'( 'universal_class', 'universal_class' ) ) ), 
% 1.10/1.47    member( 'ordered_pair'( X, Y ), 'successor_relation' ) ] )
% 1.10/1.47  , clause( 10711, [ ~( inductive( X ) ), member( 'null_class', X ) ] )
% 1.10/1.47  , clause( 10712, [ ~( inductive( X ) ), subclass( image( 
% 1.10/1.47    'successor_relation', X ), X ) ] )
% 1.10/1.47  , clause( 10713, [ ~( member( 'null_class', X ) ), ~( subclass( image( 
% 1.10/1.47    'successor_relation', X ), X ) ), inductive( X ) ] )
% 1.10/1.47  , clause( 10714, [ inductive( omega ) ] )
% 1.10/1.47  , clause( 10715, [ ~( inductive( X ) ), subclass( omega, X ) ] )
% 1.10/1.47  , clause( 10716, [ member( omega, 'universal_class' ) ] )
% 1.10/1.47  , clause( 10717, [ =( 'domain_of'( restrict( 'element_relation', 
% 1.10/1.47    'universal_class', X ) ), 'sum_class'( X ) ) ] )
% 1.10/1.47  , clause( 10718, [ ~( member( X, 'universal_class' ) ), member( 'sum_class'( 
% 1.10/1.47    X ), 'universal_class' ) ] )
% 1.10/1.47  , clause( 10719, [ =( complement( image( 'element_relation', complement( X
% 1.10/1.47     ) ) ), 'power_class'( X ) ) ] )
% 1.10/1.47  , clause( 10720, [ ~( member( X, 'universal_class' ) ), member( 
% 1.10/1.47    'power_class'( X ), 'universal_class' ) ] )
% 1.10/1.47  , clause( 10721, [ subclass( compose( X, Y ), 'cross_product'( 
% 1.10/1.47    'universal_class', 'universal_class' ) ) ] )
% 1.10/1.47  , clause( 10722, [ ~( member( 'ordered_pair'( X, Y ), compose( Z, T ) ) ), 
% 1.10/1.47    member( Y, image( Z, image( T, singleton( X ) ) ) ) ] )
% 1.10/1.47  , clause( 10723, [ ~( member( X, image( Y, image( Z, singleton( T ) ) ) ) )
% 1.10/1.47    , ~( member( 'ordered_pair'( T, X ), 'cross_product'( 'universal_class', 
% 1.10/1.47    'universal_class' ) ) ), member( 'ordered_pair'( T, X ), compose( Y, Z )
% 1.10/1.47     ) ] )
% 1.10/1.47  , clause( 10724, [ ~( 'single_valued_class'( X ) ), subclass( compose( X, 
% 1.10/1.47    inverse( X ) ), 'identity_relation' ) ] )
% 1.10/1.47  , clause( 10725, [ ~( subclass( compose( X, inverse( X ) ), 
% 1.10/1.47    'identity_relation' ) ), 'single_valued_class'( X ) ] )
% 1.10/1.47  , clause( 10726, [ ~( function( X ) ), subclass( X, 'cross_product'( 
% 1.10/1.47    'universal_class', 'universal_class' ) ) ] )
% 1.10/1.47  , clause( 10727, [ ~( function( X ) ), subclass( compose( X, inverse( X ) )
% 1.10/1.47    , 'identity_relation' ) ] )
% 1.10/1.47  , clause( 10728, [ ~( subclass( X, 'cross_product'( 'universal_class', 
% 1.10/1.47    'universal_class' ) ) ), ~( subclass( compose( X, inverse( X ) ), 
% 1.10/1.47    'identity_relation' ) ), function( X ) ] )
% 1.10/1.47  , clause( 10729, [ ~( function( X ) ), ~( member( Y, 'universal_class' ) )
% 1.10/1.47    , member( image( X, Y ), 'universal_class' ) ] )
% 1.10/1.47  , clause( 10730, [ =( X, 'null_class' ), member( regular( X ), X ) ] )
% 1.10/1.47  , clause( 10731, [ =( X, 'null_class' ), =( intersection( X, regular( X ) )
% 1.10/1.47    , 'null_class' ) ] )
% 1.10/1.47  , clause( 10732, [ =( 'sum_class'( image( X, singleton( Y ) ) ), apply( X, 
% 1.10/1.47    Y ) ) ] )
% 1.10/1.47  , clause( 10733, [ function( choice ) ] )
% 1.10/1.47  , clause( 10734, [ ~( member( X, 'universal_class' ) ), =( X, 'null_class'
% 1.10/1.47     ), member( apply( choice, X ), X ) ] )
% 1.10/1.47  , clause( 10735, [ ~( 'one_to_one'( X ) ), function( X ) ] )
% 1.10/1.47  , clause( 10736, [ ~( 'one_to_one'( X ) ), function( inverse( X ) ) ] )
% 1.10/1.47  , clause( 10737, [ ~( function( inverse( X ) ) ), ~( function( X ) ), 
% 1.10/1.47    'one_to_one'( X ) ] )
% 1.10/1.47  , clause( 10738, [ =( intersection( 'cross_product'( 'universal_class', 
% 1.10/1.47    'universal_class' ), intersection( 'cross_product'( 'universal_class', 
% 1.10/1.47    'universal_class' ), complement( compose( complement( 'element_relation'
% 1.10/1.47     ), inverse( 'element_relation' ) ) ) ) ), 'subset_relation' ) ] )
% 1.10/1.47  , clause( 10739, [ =( intersection( inverse( 'subset_relation' ), 
% 1.10/1.47    'subset_relation' ), 'identity_relation' ) ] )
% 1.10/1.47  , clause( 10740, [ =( complement( 'domain_of'( intersection( X, 
% 1.10/1.47    'identity_relation' ) ) ), diagonalise( X ) ) ] )
% 1.10/1.47  , clause( 10741, [ =( intersection( 'domain_of'( X ), diagonalise( compose( 
% 1.10/1.47    inverse( 'element_relation' ), X ) ) ), cantor( X ) ) ] )
% 1.10/1.47  , clause( 10742, [ ~( operation( X ) ), function( X ) ] )
% 1.10/1.47  , clause( 10743, [ ~( operation( X ) ), =( 'cross_product'( 'domain_of'( 
% 1.10/1.47    'domain_of'( X ) ), 'domain_of'( 'domain_of'( X ) ) ), 'domain_of'( X ) )
% 1.10/1.47     ] )
% 1.10/1.47  , clause( 10744, [ ~( operation( X ) ), subclass( 'range_of'( X ), 
% 1.10/1.47    'domain_of'( 'domain_of'( X ) ) ) ] )
% 1.10/1.47  , clause( 10745, [ ~( function( X ) ), ~( =( 'cross_product'( 'domain_of'( 
% 1.10/1.47    'domain_of'( X ) ), 'domain_of'( 'domain_of'( X ) ) ), 'domain_of'( X ) )
% 1.10/1.47     ), ~( subclass( 'range_of'( X ), 'domain_of'( 'domain_of'( X ) ) ) ), 
% 1.10/1.47    operation( X ) ] )
% 1.10/1.47  , clause( 10746, [ ~( compatible( X, Y, Z ) ), function( X ) ] )
% 1.10/1.47  , clause( 10747, [ ~( compatible( X, Y, Z ) ), =( 'domain_of'( 'domain_of'( 
% 1.10/1.47    Y ) ), 'domain_of'( X ) ) ] )
% 1.10/1.47  , clause( 10748, [ ~( compatible( X, Y, Z ) ), subclass( 'range_of'( X ), 
% 1.10/1.47    'domain_of'( 'domain_of'( Z ) ) ) ] )
% 1.10/1.47  , clause( 10749, [ ~( function( X ) ), ~( =( 'domain_of'( 'domain_of'( Y )
% 1.10/1.47     ), 'domain_of'( X ) ) ), ~( subclass( 'range_of'( X ), 'domain_of'( 
% 1.10/1.47    'domain_of'( Z ) ) ) ), compatible( X, Y, Z ) ] )
% 1.10/1.47  , clause( 10750, [ ~( homomorphism( X, Y, Z ) ), operation( Y ) ] )
% 1.10/1.47  , clause( 10751, [ ~( homomorphism( X, Y, Z ) ), operation( Z ) ] )
% 1.10/1.47  , clause( 10752, [ ~( homomorphism( X, Y, Z ) ), compatible( X, Y, Z ) ] )
% 1.10/1.47  , clause( 10753, [ ~( homomorphism( X, Y, Z ) ), ~( member( 'ordered_pair'( 
% 1.10/1.47    T, U ), 'domain_of'( Y ) ) ), =( apply( Z, 'ordered_pair'( apply( X, T )
% 1.10/1.47    , apply( X, U ) ) ), apply( X, apply( Y, 'ordered_pair'( T, U ) ) ) ) ]
% 1.10/1.47     )
% 1.10/1.47  , clause( 10754, [ ~( operation( X ) ), ~( operation( Y ) ), ~( compatible( 
% 1.10/1.47    Z, X, Y ) ), member( 'ordered_pair'( 'not_homomorphism1'( Z, X, Y ), 
% 1.10/1.47    'not_homomorphism2'( Z, X, Y ) ), 'domain_of'( X ) ), homomorphism( Z, X
% 1.10/1.47    , Y ) ] )
% 1.10/1.47  , clause( 10755, [ ~( operation( X ) ), ~( operation( Y ) ), ~( compatible( 
% 1.10/1.47    Z, X, Y ) ), ~( =( apply( Y, 'ordered_pair'( apply( Z, 
% 1.10/1.47    'not_homomorphism1'( Z, X, Y ) ), apply( Z, 'not_homomorphism2'( Z, X, Y
% 1.10/1.47     ) ) ) ), apply( Z, apply( X, 'ordered_pair'( 'not_homomorphism1'( Z, X, 
% 1.10/1.47    Y ), 'not_homomorphism2'( Z, X, Y ) ) ) ) ) ), homomorphism( Z, X, Y ) ]
% 1.10/1.47     )
% 1.10/1.47  , clause( 10756, [ =( singleton( x ), singleton( y ) ) ] )
% 1.10/1.47  , clause( 10757, [ member( x, 'universal_class' ) ] )
% 1.10/1.47  , clause( 10758, [ ~( =( x, y ) ) ] )
% 1.10/1.47  ] ).
% 1.10/1.47  
% 1.10/1.47  
% 1.10/1.47  
% 1.10/1.47  subsumption(
% 1.10/1.47  clause( 4, [ ~( =( X, Y ) ), subclass( X, Y ) ] )
% 1.10/1.47  , clause( 10669, [ ~( =( X, Y ) ), subclass( X, Y ) ] )
% 1.10/1.47  , substitution( 0, [ :=( X, X ), :=( Y, Y )] ), permutation( 0, [ ==>( 0, 0
% 1.10/1.47     ), ==>( 1, 1 )] ) ).
% 1.10/1.47  
% 1.10/1.47  
% 1.10/1.47  subsumption(
% 1.10/1.47  clause( 5, [ ~( subclass( X, Y ) ), ~( subclass( Y, X ) ), =( X, Y ) ] )
% 1.10/1.47  , clause( 10671, [ ~( subclass( X, Y ) ), ~( subclass( Y, X ) ), =( X, Y )
% 1.10/1.47     ] )
% 1.10/1.47  , substitution( 0, [ :=( X, X ), :=( Y, Y )] ), permutation( 0, [ ==>( 0, 0
% 1.10/1.47     ), ==>( 1, 1 ), ==>( 2, 2 )] ) ).
% 1.10/1.47  
% 1.10/1.47  
% 1.10/1.47  subsumption(
% 1.10/1.47  clause( 6, [ ~( member( X, 'unordered_pair'( Y, Z ) ) ), =( X, Y ), =( X, Z
% 1.10/1.47     ) ] )
% 1.10/1.47  , clause( 10672, [ ~( member( X, 'unordered_pair'( Y, Z ) ) ), =( X, Y ), 
% 1.10/1.47    =( X, Z ) ] )
% 1.10/1.47  , substitution( 0, [ :=( X, X ), :=( Y, Y ), :=( Z, Z )] ), 
% 1.10/1.47    permutation( 0, [ ==>( 0, 0 ), ==>( 1, 1 ), ==>( 2, 2 )] ) ).
% 1.10/1.47  
% 1.10/1.47  
% 1.10/1.47  subsumption(
% 1.10/1.47  clause( 8, [ ~( member( X, 'universal_class' ) ), member( X, 
% 1.10/1.47    'unordered_pair'( Y, X ) ) ] )
% 1.10/1.47  , clause( 10674, [ ~( member( X, 'universal_class' ) ), member( X, 
% 1.10/1.47    'unordered_pair'( Y, X ) ) ] )
% 1.10/1.47  , substitution( 0, [ :=( X, X ), :=( Y, Y )] ), permutation( 0, [ ==>( 0, 0
% 1.10/1.47     ), ==>( 1, 1 )] ) ).
% 1.10/1.47  
% 1.10/1.47  
% 1.10/1.47  subsumption(
% 1.10/1.47  clause( 10, [ =( 'unordered_pair'( X, X ), singleton( X ) ) ] )
% 1.10/1.47  , clause( 10676, [ =( 'unordered_pair'( X, X ), singleton( X ) ) ] )
% 1.10/1.47  , substitution( 0, [ :=( X, X )] ), permutation( 0, [ ==>( 0, 0 )] ) ).
% 1.10/1.47  
% 1.10/1.47  
% 1.10/1.47  eqswap(
% 1.10/1.47  clause( 10838, [ =( singleton( y ), singleton( x ) ) ] )
% 1.10/1.47  , clause( 10756, [ =( singleton( x ), singleton( y ) ) ] )
% 1.10/1.47  , 0, substitution( 0, [] )).
% 1.10/1.47  
% 1.10/1.47  
% 1.10/1.47  subsumption(
% 1.10/1.47  clause( 90, [ =( singleton( y ), singleton( x ) ) ] )
% 1.10/1.47  , clause( 10838, [ =( singleton( y ), singleton( x ) ) ] )
% 1.10/1.47  , substitution( 0, [] ), permuCputime limit exceeded (core dumped)
%------------------------------------------------------------------------------