TSTP Solution File: SET094-6 by Bliksem---1.12

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : Bliksem---1.12
% Problem  : SET094-6 : 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 22:46:57 EDT 2022

% Result   : Unsatisfiable 1.26s 1.64s
% Output   : Refutation 1.26s
% Verified : 
% SZS Type : -

% Comments : 
%------------------------------------------------------------------------------
%----WARNING: Could not form TPTP format derivation
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.11/0.11  % Problem  : SET094-6 : TPTP v8.1.0. Bugfixed v2.1.0.
% 0.11/0.12  % Command  : bliksem %s
% 0.12/0.33  % Computer : n023.cluster.edu
% 0.12/0.33  % Model    : x86_64 x86_64
% 0.12/0.33  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.12/0.33  % Memory   : 8042.1875MB
% 0.12/0.33  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.12/0.33  % CPULimit : 300
% 0.12/0.33  % DateTime : Sun Jul 10 07:31:25 EDT 2022
% 0.12/0.33  % CPUTime  : 
% 0.68/1.10  *** allocated 10000 integers for termspace/termends
% 0.68/1.10  *** allocated 10000 integers for clauses
% 0.68/1.10  *** allocated 10000 integers for justifications
% 0.68/1.10  Bliksem 1.12
% 0.68/1.10  
% 0.68/1.10  
% 0.68/1.10  Automatic Strategy Selection
% 0.68/1.10  
% 0.68/1.10  Clauses:
% 0.68/1.10  [
% 0.68/1.10     [ ~( subclass( X, Y ) ), ~( member( Z, X ) ), member( Z, Y ) ],
% 0.68/1.10     [ member( 'not_subclass_element'( X, Y ), X ), subclass( X, Y ) ],
% 0.68/1.10     [ ~( member( 'not_subclass_element'( X, Y ), Y ) ), subclass( X, Y ) ]
% 0.68/1.10    ,
% 0.68/1.10     [ subclass( X, 'universal_class' ) ],
% 0.68/1.10     [ ~( =( X, Y ) ), subclass( X, Y ) ],
% 0.68/1.10     [ ~( =( X, Y ) ), subclass( Y, X ) ],
% 0.68/1.10     [ ~( subclass( X, Y ) ), ~( subclass( Y, X ) ), =( X, Y ) ],
% 0.68/1.10     [ ~( member( X, 'unordered_pair'( Y, Z ) ) ), =( X, Y ), =( X, Z ) ]
% 0.68/1.10    ,
% 0.68/1.10     [ ~( member( X, 'universal_class' ) ), member( X, 'unordered_pair'( X, Y
% 0.68/1.10     ) ) ],
% 0.68/1.10     [ ~( member( X, 'universal_class' ) ), member( X, 'unordered_pair'( Y, X
% 0.68/1.10     ) ) ],
% 0.68/1.10     [ member( 'unordered_pair'( X, Y ), 'universal_class' ) ],
% 0.68/1.10     [ =( 'unordered_pair'( X, X ), singleton( X ) ) ],
% 0.68/1.10     [ =( 'unordered_pair'( singleton( X ), 'unordered_pair'( X, singleton( Y
% 0.68/1.10     ) ) ), 'ordered_pair'( X, Y ) ) ],
% 0.68/1.10     [ ~( member( 'ordered_pair'( X, Y ), 'cross_product'( Z, T ) ) ), member( 
% 0.68/1.10    X, Z ) ],
% 0.68/1.10     [ ~( member( 'ordered_pair'( X, Y ), 'cross_product'( Z, T ) ) ), member( 
% 0.68/1.10    Y, T ) ],
% 0.68/1.10     [ ~( member( X, Y ) ), ~( member( Z, T ) ), member( 'ordered_pair'( X, Z
% 0.68/1.10     ), 'cross_product'( Y, T ) ) ],
% 0.68/1.10     [ ~( member( X, 'cross_product'( Y, Z ) ) ), =( 'ordered_pair'( first( X
% 0.68/1.10     ), second( X ) ), X ) ],
% 0.68/1.10     [ subclass( 'element_relation', 'cross_product'( 'universal_class', 
% 0.68/1.10    'universal_class' ) ) ],
% 0.68/1.10     [ ~( member( 'ordered_pair'( X, Y ), 'element_relation' ) ), member( X, 
% 0.68/1.10    Y ) ],
% 0.68/1.10     [ ~( member( 'ordered_pair'( X, Y ), 'cross_product'( 'universal_class'
% 0.68/1.10    , 'universal_class' ) ) ), ~( member( X, Y ) ), member( 'ordered_pair'( X
% 0.68/1.10    , Y ), 'element_relation' ) ],
% 0.68/1.10     [ ~( member( X, intersection( Y, Z ) ) ), member( X, Y ) ],
% 0.68/1.10     [ ~( member( X, intersection( Y, Z ) ) ), member( X, Z ) ],
% 0.68/1.10     [ ~( member( X, Y ) ), ~( member( X, Z ) ), member( X, intersection( Y, 
% 0.68/1.10    Z ) ) ],
% 0.68/1.10     [ ~( member( X, complement( Y ) ) ), ~( member( X, Y ) ) ],
% 0.68/1.10     [ ~( member( X, 'universal_class' ) ), member( X, complement( Y ) ), 
% 0.68/1.10    member( X, Y ) ],
% 0.68/1.10     [ =( complement( intersection( complement( X ), complement( Y ) ) ), 
% 0.68/1.10    union( X, Y ) ) ],
% 0.68/1.10     [ =( intersection( complement( intersection( X, Y ) ), complement( 
% 0.68/1.10    intersection( complement( X ), complement( Y ) ) ) ), 
% 0.68/1.10    'symmetric_difference'( X, Y ) ) ],
% 0.68/1.10     [ =( intersection( X, 'cross_product'( Y, Z ) ), restrict( X, Y, Z ) ) ]
% 0.68/1.10    ,
% 0.68/1.10     [ =( intersection( 'cross_product'( X, Y ), Z ), restrict( Z, X, Y ) ) ]
% 0.68/1.10    ,
% 0.68/1.10     [ ~( =( restrict( X, singleton( Y ), 'universal_class' ), 'null_class' )
% 0.68/1.10     ), ~( member( Y, 'domain_of'( X ) ) ) ],
% 0.68/1.10     [ ~( member( X, 'universal_class' ) ), =( restrict( Y, singleton( X ), 
% 0.68/1.10    'universal_class' ), 'null_class' ), member( X, 'domain_of'( Y ) ) ],
% 0.68/1.10     [ subclass( rotate( X ), 'cross_product'( 'cross_product'( 
% 0.68/1.10    'universal_class', 'universal_class' ), 'universal_class' ) ) ],
% 0.68/1.10     [ ~( member( 'ordered_pair'( 'ordered_pair'( X, Y ), Z ), rotate( T ) )
% 0.68/1.10     ), member( 'ordered_pair'( 'ordered_pair'( Y, Z ), X ), T ) ],
% 0.68/1.10     [ ~( member( 'ordered_pair'( 'ordered_pair'( X, Y ), Z ), T ) ), ~( 
% 0.68/1.10    member( 'ordered_pair'( 'ordered_pair'( Z, X ), Y ), 'cross_product'( 
% 0.68/1.10    'cross_product'( 'universal_class', 'universal_class' ), 
% 0.68/1.10    'universal_class' ) ) ), member( 'ordered_pair'( 'ordered_pair'( Z, X ), 
% 0.68/1.10    Y ), rotate( T ) ) ],
% 0.68/1.10     [ subclass( flip( X ), 'cross_product'( 'cross_product'( 
% 0.68/1.10    'universal_class', 'universal_class' ), 'universal_class' ) ) ],
% 0.68/1.10     [ ~( member( 'ordered_pair'( 'ordered_pair'( X, Y ), Z ), flip( T ) ) )
% 0.68/1.10    , member( 'ordered_pair'( 'ordered_pair'( Y, X ), Z ), T ) ],
% 0.68/1.10     [ ~( member( 'ordered_pair'( 'ordered_pair'( X, Y ), Z ), T ) ), ~( 
% 0.68/1.10    member( 'ordered_pair'( 'ordered_pair'( Y, X ), Z ), 'cross_product'( 
% 0.68/1.10    'cross_product'( 'universal_class', 'universal_class' ), 
% 0.68/1.10    'universal_class' ) ) ), member( 'ordered_pair'( 'ordered_pair'( Y, X ), 
% 0.68/1.10    Z ), flip( T ) ) ],
% 0.68/1.10     [ =( 'domain_of'( flip( 'cross_product'( X, 'universal_class' ) ) ), 
% 0.68/1.10    inverse( X ) ) ],
% 0.68/1.10     [ =( 'domain_of'( inverse( X ) ), 'range_of'( X ) ) ],
% 0.68/1.10     [ =( first( 'not_subclass_element'( restrict( X, Y, singleton( Z ) ), 
% 0.68/1.10    'null_class' ) ), domain( X, Y, Z ) ) ],
% 0.68/1.10     [ =( second( 'not_subclass_element'( restrict( X, singleton( Y ), Z ), 
% 0.68/1.10    'null_class' ) ), range( X, Y, Z ) ) ],
% 0.68/1.10     [ =( 'range_of'( restrict( X, Y, 'universal_class' ) ), image( X, Y ) )
% 0.68/1.10     ],
% 0.68/1.10     [ =( union( X, singleton( X ) ), successor( X ) ) ],
% 0.68/1.10     [ subclass( 'successor_relation', 'cross_product'( 'universal_class', 
% 0.68/1.10    'universal_class' ) ) ],
% 0.68/1.10     [ ~( member( 'ordered_pair'( X, Y ), 'successor_relation' ) ), =( 
% 0.68/1.10    successor( X ), Y ) ],
% 0.68/1.10     [ ~( =( successor( X ), Y ) ), ~( member( 'ordered_pair'( X, Y ), 
% 0.68/1.10    'cross_product'( 'universal_class', 'universal_class' ) ) ), member( 
% 0.68/1.10    'ordered_pair'( X, Y ), 'successor_relation' ) ],
% 0.68/1.10     [ ~( inductive( X ) ), member( 'null_class', X ) ],
% 0.68/1.10     [ ~( inductive( X ) ), subclass( image( 'successor_relation', X ), X ) ]
% 0.68/1.10    ,
% 0.68/1.10     [ ~( member( 'null_class', X ) ), ~( subclass( image( 
% 0.68/1.10    'successor_relation', X ), X ) ), inductive( X ) ],
% 0.68/1.10     [ inductive( omega ) ],
% 0.68/1.10     [ ~( inductive( X ) ), subclass( omega, X ) ],
% 0.68/1.10     [ member( omega, 'universal_class' ) ],
% 0.68/1.10     [ =( 'domain_of'( restrict( 'element_relation', 'universal_class', X ) )
% 0.68/1.10    , 'sum_class'( X ) ) ],
% 0.68/1.10     [ ~( member( X, 'universal_class' ) ), member( 'sum_class'( X ), 
% 0.68/1.10    'universal_class' ) ],
% 0.68/1.10     [ =( complement( image( 'element_relation', complement( X ) ) ), 
% 0.68/1.10    'power_class'( X ) ) ],
% 0.68/1.10     [ ~( member( X, 'universal_class' ) ), member( 'power_class'( X ), 
% 0.68/1.10    'universal_class' ) ],
% 0.68/1.10     [ subclass( compose( X, Y ), 'cross_product'( 'universal_class', 
% 0.68/1.10    'universal_class' ) ) ],
% 0.68/1.10     [ ~( member( 'ordered_pair'( X, Y ), compose( Z, T ) ) ), member( Y, 
% 0.68/1.10    image( Z, image( T, singleton( X ) ) ) ) ],
% 0.68/1.10     [ ~( member( X, image( Y, image( Z, singleton( T ) ) ) ) ), ~( member( 
% 0.68/1.10    'ordered_pair'( T, X ), 'cross_product'( 'universal_class', 
% 0.68/1.10    'universal_class' ) ) ), member( 'ordered_pair'( T, X ), compose( Y, Z )
% 0.68/1.10     ) ],
% 0.68/1.10     [ ~( 'single_valued_class'( X ) ), subclass( compose( X, inverse( X ) )
% 0.68/1.10    , 'identity_relation' ) ],
% 0.68/1.10     [ ~( subclass( compose( X, inverse( X ) ), 'identity_relation' ) ), 
% 0.68/1.10    'single_valued_class'( X ) ],
% 0.68/1.10     [ ~( function( X ) ), subclass( X, 'cross_product'( 'universal_class', 
% 0.68/1.10    'universal_class' ) ) ],
% 0.68/1.10     [ ~( function( X ) ), subclass( compose( X, inverse( X ) ), 
% 0.68/1.10    'identity_relation' ) ],
% 0.68/1.10     [ ~( subclass( X, 'cross_product'( 'universal_class', 'universal_class'
% 0.68/1.10     ) ) ), ~( subclass( compose( X, inverse( X ) ), 'identity_relation' ) )
% 0.68/1.10    , function( X ) ],
% 0.68/1.10     [ ~( function( X ) ), ~( member( Y, 'universal_class' ) ), member( image( 
% 0.68/1.10    X, Y ), 'universal_class' ) ],
% 0.68/1.10     [ =( X, 'null_class' ), member( regular( X ), X ) ],
% 0.68/1.10     [ =( X, 'null_class' ), =( intersection( X, regular( X ) ), 'null_class'
% 0.68/1.10     ) ],
% 0.68/1.10     [ =( 'sum_class'( image( X, singleton( Y ) ) ), apply( X, Y ) ) ],
% 0.68/1.10     [ function( choice ) ],
% 0.68/1.10     [ ~( member( X, 'universal_class' ) ), =( X, 'null_class' ), member( 
% 0.68/1.10    apply( choice, X ), X ) ],
% 0.68/1.10     [ ~( 'one_to_one'( X ) ), function( X ) ],
% 0.68/1.10     [ ~( 'one_to_one'( X ) ), function( inverse( X ) ) ],
% 0.68/1.10     [ ~( function( inverse( X ) ) ), ~( function( X ) ), 'one_to_one'( X ) ]
% 0.68/1.10    ,
% 0.68/1.10     [ =( intersection( 'cross_product'( 'universal_class', 'universal_class'
% 0.68/1.10     ), intersection( 'cross_product'( 'universal_class', 'universal_class' )
% 0.68/1.10    , complement( compose( complement( 'element_relation' ), inverse( 
% 0.68/1.10    'element_relation' ) ) ) ) ), 'subset_relation' ) ],
% 0.68/1.10     [ =( intersection( inverse( 'subset_relation' ), 'subset_relation' ), 
% 0.68/1.10    'identity_relation' ) ],
% 0.68/1.10     [ =( complement( 'domain_of'( intersection( X, 'identity_relation' ) ) )
% 0.68/1.10    , diagonalise( X ) ) ],
% 0.68/1.10     [ =( intersection( 'domain_of'( X ), diagonalise( compose( inverse( 
% 0.68/1.10    'element_relation' ), X ) ) ), cantor( X ) ) ],
% 0.68/1.10     [ ~( operation( X ) ), function( X ) ],
% 0.68/1.10     [ ~( operation( X ) ), =( 'cross_product'( 'domain_of'( 'domain_of'( X )
% 0.68/1.10     ), 'domain_of'( 'domain_of'( X ) ) ), 'domain_of'( X ) ) ],
% 0.68/1.10     [ ~( operation( X ) ), subclass( 'range_of'( X ), 'domain_of'( 
% 1.26/1.64    'domain_of'( X ) ) ) ],
% 1.26/1.64     [ ~( function( X ) ), ~( =( 'cross_product'( 'domain_of'( 'domain_of'( X
% 1.26/1.64     ) ), 'domain_of'( 'domain_of'( X ) ) ), 'domain_of'( X ) ) ), ~( 
% 1.26/1.64    subclass( 'range_of'( X ), 'domain_of'( 'domain_of'( X ) ) ) ), operation( 
% 1.26/1.64    X ) ],
% 1.26/1.64     [ ~( compatible( X, Y, Z ) ), function( X ) ],
% 1.26/1.64     [ ~( compatible( X, Y, Z ) ), =( 'domain_of'( 'domain_of'( Y ) ), 
% 1.26/1.64    'domain_of'( X ) ) ],
% 1.26/1.64     [ ~( compatible( X, Y, Z ) ), subclass( 'range_of'( X ), 'domain_of'( 
% 1.26/1.64    'domain_of'( Z ) ) ) ],
% 1.26/1.64     [ ~( function( X ) ), ~( =( 'domain_of'( 'domain_of'( Y ) ), 'domain_of'( 
% 1.26/1.64    X ) ) ), ~( subclass( 'range_of'( X ), 'domain_of'( 'domain_of'( Z ) ) )
% 1.26/1.64     ), compatible( X, Y, Z ) ],
% 1.26/1.64     [ ~( homomorphism( X, Y, Z ) ), operation( Y ) ],
% 1.26/1.64     [ ~( homomorphism( X, Y, Z ) ), operation( Z ) ],
% 1.26/1.64     [ ~( homomorphism( X, Y, Z ) ), compatible( X, Y, Z ) ],
% 1.26/1.64     [ ~( homomorphism( X, Y, Z ) ), ~( member( 'ordered_pair'( T, U ), 
% 1.26/1.64    'domain_of'( Y ) ) ), =( apply( Z, 'ordered_pair'( apply( X, T ), apply( 
% 1.26/1.64    X, U ) ) ), apply( X, apply( Y, 'ordered_pair'( T, U ) ) ) ) ],
% 1.26/1.64     [ ~( operation( X ) ), ~( operation( Y ) ), ~( compatible( Z, X, Y ) ), 
% 1.26/1.64    member( 'ordered_pair'( 'not_homomorphism1'( Z, X, Y ), 
% 1.26/1.64    'not_homomorphism2'( Z, X, Y ) ), 'domain_of'( X ) ), homomorphism( Z, X
% 1.26/1.64    , Y ) ],
% 1.26/1.64     [ ~( operation( X ) ), ~( operation( Y ) ), ~( compatible( Z, X, Y ) ), 
% 1.26/1.64    ~( =( apply( Y, 'ordered_pair'( apply( Z, 'not_homomorphism1'( Z, X, Y )
% 1.26/1.64     ), apply( Z, 'not_homomorphism2'( Z, X, Y ) ) ) ), apply( Z, apply( X, 
% 1.26/1.64    'ordered_pair'( 'not_homomorphism1'( Z, X, Y ), 'not_homomorphism2'( Z, X
% 1.26/1.64    , Y ) ) ) ) ) ), homomorphism( Z, X, Y ) ],
% 1.26/1.64     [ =( singleton( 'member_of'( x ) ), x ) ],
% 1.26/1.64     [ member( y, x ) ],
% 1.26/1.64     [ ~( =( 'member_of'( x ), y ) ) ]
% 1.26/1.64  ] .
% 1.26/1.64  
% 1.26/1.64  
% 1.26/1.64  percentage equality = 0.222826, percentage horn = 0.914894
% 1.26/1.64  This is a problem with some equality
% 1.26/1.64  
% 1.26/1.64  
% 1.26/1.64  
% 1.26/1.64  Options Used:
% 1.26/1.64  
% 1.26/1.64  useres =            1
% 1.26/1.64  useparamod =        1
% 1.26/1.64  useeqrefl =         1
% 1.26/1.64  useeqfact =         1
% 1.26/1.64  usefactor =         1
% 1.26/1.64  usesimpsplitting =  0
% 1.26/1.64  usesimpdemod =      5
% 1.26/1.64  usesimpres =        3
% 1.26/1.64  
% 1.26/1.64  resimpinuse      =  1000
% 1.26/1.64  resimpclauses =     20000
% 1.26/1.64  substype =          eqrewr
% 1.26/1.64  backwardsubs =      1
% 1.26/1.64  selectoldest =      5
% 1.26/1.64  
% 1.26/1.64  litorderings [0] =  split
% 1.26/1.64  litorderings [1] =  extend the termordering, first sorting on arguments
% 1.26/1.64  
% 1.26/1.64  termordering =      kbo
% 1.26/1.64  
% 1.26/1.64  litapriori =        0
% 1.26/1.64  termapriori =       1
% 1.26/1.64  litaposteriori =    0
% 1.26/1.64  termaposteriori =   0
% 1.26/1.64  demodaposteriori =  0
% 1.26/1.64  ordereqreflfact =   0
% 1.26/1.64  
% 1.26/1.64  litselect =         negord
% 1.26/1.64  
% 1.26/1.64  maxweight =         15
% 1.26/1.64  maxdepth =          30000
% 1.26/1.64  maxlength =         115
% 1.26/1.64  maxnrvars =         195
% 1.26/1.64  excuselevel =       1
% 1.26/1.64  increasemaxweight = 1
% 1.26/1.64  
% 1.26/1.64  maxselected =       10000000
% 1.26/1.64  maxnrclauses =      10000000
% 1.26/1.64  
% 1.26/1.64  showgenerated =    0
% 1.26/1.64  showkept =         0
% 1.26/1.64  showselected =     0
% 1.26/1.64  showdeleted =      0
% 1.26/1.64  showresimp =       1
% 1.26/1.64  showstatus =       2000
% 1.26/1.64  
% 1.26/1.64  prologoutput =     1
% 1.26/1.64  nrgoals =          5000000
% 1.26/1.64  totalproof =       1
% 1.26/1.64  
% 1.26/1.64  Symbols occurring in the translation:
% 1.26/1.64  
% 1.26/1.64  {}  [0, 0]      (w:1, o:2, a:1, s:1, b:0), 
% 1.26/1.64  .  [1, 2]      (w:1, o:57, a:1, s:1, b:0), 
% 1.26/1.64  !  [4, 1]      (w:0, o:31, a:1, s:1, b:0), 
% 1.26/1.64  =  [13, 2]      (w:1, o:0, a:0, s:1, b:0), 
% 1.26/1.64  ==>  [14, 2]      (w:1, o:0, a:0, s:1, b:0), 
% 1.26/1.64  subclass  [41, 2]      (w:1, o:82, a:1, s:1, b:0), 
% 1.26/1.64  member  [43, 2]      (w:1, o:83, a:1, s:1, b:0), 
% 1.26/1.64  'not_subclass_element'  [44, 2]      (w:1, o:84, a:1, s:1, b:0), 
% 1.26/1.64  'universal_class'  [45, 0]      (w:1, o:21, a:1, s:1, b:0), 
% 1.26/1.64  'unordered_pair'  [46, 2]      (w:1, o:85, a:1, s:1, b:0), 
% 1.26/1.64  singleton  [47, 1]      (w:1, o:39, a:1, s:1, b:0), 
% 1.26/1.64  'ordered_pair'  [48, 2]      (w:1, o:86, a:1, s:1, b:0), 
% 1.26/1.64  'cross_product'  [50, 2]      (w:1, o:87, a:1, s:1, b:0), 
% 1.26/1.64  first  [52, 1]      (w:1, o:40, a:1, s:1, b:0), 
% 1.26/1.64  second  [53, 1]      (w:1, o:41, a:1, s:1, b:0), 
% 1.26/1.64  'element_relation'  [54, 0]      (w:1, o:25, a:1, s:1, b:0), 
% 1.26/1.64  intersection  [55, 2]      (w:1, o:89, a:1, s:1, b:0), 
% 1.26/1.64  complement  [56, 1]      (w:1, o:42, a:1, s:1, b:0), 
% 1.26/1.64  union  [57, 2]      (w:1, o:90, a:1, s:1, b:0), 
% 1.26/1.64  'symmetric_difference'  [58, 2]      (w:1, o:91, a:1, s:1, b:0), 
% 1.26/1.64  restrict  [60, 3]      (w:1, o:94, a:1, s:1, b:0), 
% 1.26/1.64  'null_class'  [61, 0]      (w:1, o:26, a:1, s:1, b:0), 
% 1.26/1.64  'domain_of'  [62, 1]      (w:1, o:44, a:1, s:1, b:0), 
% 1.26/1.64  rotate  [63, 1]      (w:1, o:36, a:1, s:1, b:0), 
% 1.26/1.64  flip  [65, 1]      (w:1, o:45, a:1, s:1, b:0), 
% 1.26/1.64  inverse  [66, 1]      (w:1, o:46, a:1, s:1, b:0), 
% 1.26/1.64  'range_of'  [67, 1]      (w:1, o:37, a:1, s:1, b:0), 
% 1.26/1.64  domain  [68, 3]      (w:1, o:96, a:1, s:1, b:0), 
% 1.26/1.64  range  [69, 3]      (w:1, o:97, a:1, s:1, b:0), 
% 1.26/1.64  image  [70, 2]      (w:1, o:88, a:1, s:1, b:0), 
% 1.26/1.64  successor  [71, 1]      (w:1, o:47, a:1, s:1, b:0), 
% 1.26/1.64  'successor_relation'  [72, 0]      (w:1, o:6, a:1, s:1, b:0), 
% 1.26/1.64  inductive  [73, 1]      (w:1, o:48, a:1, s:1, b:0), 
% 1.26/1.64  omega  [74, 0]      (w:1, o:9, a:1, s:1, b:0), 
% 1.26/1.64  'sum_class'  [75, 1]      (w:1, o:49, a:1, s:1, b:0), 
% 1.26/1.64  'power_class'  [76, 1]      (w:1, o:52, a:1, s:1, b:0), 
% 1.26/1.64  compose  [78, 2]      (w:1, o:92, a:1, s:1, b:0), 
% 1.26/1.64  'single_valued_class'  [79, 1]      (w:1, o:53, a:1, s:1, b:0), 
% 1.26/1.64  'identity_relation'  [80, 0]      (w:1, o:27, a:1, s:1, b:0), 
% 1.26/1.64  function  [82, 1]      (w:1, o:54, a:1, s:1, b:0), 
% 1.26/1.64  regular  [83, 1]      (w:1, o:38, a:1, s:1, b:0), 
% 1.26/1.64  apply  [84, 2]      (w:1, o:93, a:1, s:1, b:0), 
% 1.26/1.64  choice  [85, 0]      (w:1, o:28, a:1, s:1, b:0), 
% 1.26/1.64  'one_to_one'  [86, 1]      (w:1, o:50, a:1, s:1, b:0), 
% 1.26/1.64  'subset_relation'  [87, 0]      (w:1, o:5, a:1, s:1, b:0), 
% 1.26/1.64  diagonalise  [88, 1]      (w:1, o:55, a:1, s:1, b:0), 
% 1.26/1.64  cantor  [89, 1]      (w:1, o:43, a:1, s:1, b:0), 
% 1.26/1.64  operation  [90, 1]      (w:1, o:51, a:1, s:1, b:0), 
% 1.26/1.64  compatible  [94, 3]      (w:1, o:95, a:1, s:1, b:0), 
% 1.26/1.64  homomorphism  [95, 3]      (w:1, o:98, a:1, s:1, b:0), 
% 1.26/1.64  'not_homomorphism1'  [96, 3]      (w:1, o:99, a:1, s:1, b:0), 
% 1.26/1.64  'not_homomorphism2'  [97, 3]      (w:1, o:100, a:1, s:1, b:0), 
% 1.26/1.64  x  [98, 0]      (w:1, o:29, a:1, s:1, b:0), 
% 1.26/1.64  'member_of'  [99, 1]      (w:1, o:56, a:1, s:1, b:0), 
% 1.26/1.64  y  [100, 0]      (w:1, o:30, a:1, s:1, b:0).
% 1.26/1.64  
% 1.26/1.64  
% 1.26/1.64  Starting Search:
% 1.26/1.64  
% 1.26/1.64  Resimplifying inuse:
% 1.26/1.64  Done
% 1.26/1.64  
% 1.26/1.64  
% 1.26/1.64  Intermediate Status:
% 1.26/1.64  Generated:    5081
% 1.26/1.64  Kept:         2018
% 1.26/1.64  Inuse:        109
% 1.26/1.64  Deleted:      10
% 1.26/1.64  Deletedinuse: 2
% 1.26/1.64  
% 1.26/1.64  Resimplifying inuse:
% 1.26/1.64  Done
% 1.26/1.64  
% 1.26/1.64  Resimplifying inuse:
% 1.26/1.64  Done
% 1.26/1.64  
% 1.26/1.64  
% 1.26/1.64  Intermediate Status:
% 1.26/1.64  Generated:    9999
% 1.26/1.64  Kept:         4168
% 1.26/1.64  Inuse:        187
% 1.26/1.64  Deleted:      21
% 1.26/1.64  Deletedinuse: 7
% 1.26/1.64  
% 1.26/1.64  Resimplifying inuse:
% 1.26/1.64  Done
% 1.26/1.64  
% 1.26/1.64  Resimplifying inuse:
% 1.26/1.64  Done
% 1.26/1.64  
% 1.26/1.64  
% 1.26/1.64  Intermediate Status:
% 1.26/1.64  Generated:    14087
% 1.26/1.64  Kept:         6203
% 1.26/1.64  Inuse:        245
% 1.26/1.64  Deleted:      24
% 1.26/1.64  Deletedinuse: 9
% 1.26/1.64  
% 1.26/1.64  Resimplifying inuse:
% 1.26/1.64  Done
% 1.26/1.64  
% 1.26/1.64  Resimplifying inuse:
% 1.26/1.64  Done
% 1.26/1.64  
% 1.26/1.64  
% 1.26/1.64  Intermediate Status:
% 1.26/1.64  Generated:    19145
% 1.26/1.64  Kept:         8217
% 1.26/1.64  Inuse:        299
% 1.26/1.64  Deleted:      54
% 1.26/1.64  Deletedinuse: 36
% 1.26/1.64  
% 1.26/1.64  Resimplifying inuse:
% 1.26/1.64  Done
% 1.26/1.64  
% 1.26/1.64  Resimplifying inuse:
% 1.26/1.64  Done
% 1.26/1.64  
% 1.26/1.64  
% 1.26/1.64  Bliksems!, er is een bewijs:
% 1.26/1.64  % SZS status Unsatisfiable
% 1.26/1.64  % SZS output start Refutation
% 1.26/1.64  
% 1.26/1.64  clause( 4, [ ~( =( X, Y ) ), subclass( X, Y ) ] )
% 1.26/1.64  .
% 1.26/1.64  clause( 5, [ ~( subclass( X, Y ) ), ~( subclass( Y, X ) ), =( X, Y ) ] )
% 1.26/1.64  .
% 1.26/1.64  clause( 6, [ ~( member( X, 'unordered_pair'( Y, Z ) ) ), =( X, Y ), =( X, Z
% 1.26/1.64     ) ] )
% 1.26/1.64  .
% 1.26/1.64  clause( 10, [ =( 'unordered_pair'( X, X ), singleton( X ) ) ] )
% 1.26/1.64  .
% 1.26/1.64  clause( 90, [ =( singleton( 'member_of'( x ) ), x ) ] )
% 1.26/1.64  .
% 1.26/1.64  clause( 91, [ member( y, x ) ] )
% 1.26/1.64  .
% 1.26/1.64  clause( 92, [ ~( =( 'member_of'( x ), y ) ) ] )
% 1.26/1.64  .
% 1.26/1.64  clause( 94, [ =( X, Y ), ~( member( X, singleton( Y ) ) ) ] )
% 1.26/1.64  .
% 1.26/1.64  clause( 123, [ =( X, Y ), ~( =( Y, X ) ) ] )
% 1.26/1.64  .
% 1.26/1.64  clause( 174, [ member( X, x ), ~( =( X, y ) ) ] )
% 1.26/1.64  .
% 1.26/1.64  clause( 11145, [ ~( =( X, y ) ) ] )
% 1.26/1.64  .
% 1.26/1.64  clause( 11153, [] )
% 1.26/1.64  .
% 1.26/1.64  
% 1.26/1.64  
% 1.26/1.64  % SZS output end Refutation
% 1.26/1.64  found a proof!
% 1.26/1.64  
% 1.26/1.64  % ABCDEFGHIJKLMNOPQRSTUVWXYZ
% 1.26/1.64  
% 1.26/1.64  initialclauses(
% 1.26/1.64  [ clause( 11155, [ ~( subclass( X, Y ) ), ~( member( Z, X ) ), member( Z, Y
% 1.26/1.64     ) ] )
% 1.26/1.64  , clause( 11156, [ member( 'not_subclass_element'( X, Y ), X ), subclass( X
% 1.26/1.64    , Y ) ] )
% 1.26/1.64  , clause( 11157, [ ~( member( 'not_subclass_element'( X, Y ), Y ) ), 
% 1.26/1.64    subclass( X, Y ) ] )
% 1.26/1.64  , clause( 11158, [ subclass( X, 'universal_class' ) ] )
% 1.26/1.64  , clause( 11159, [ ~( =( X, Y ) ), subclass( X, Y ) ] )
% 1.26/1.64  , clause( 11160, [ ~( =( X, Y ) ), subclass( Y, X ) ] )
% 1.26/1.64  , clause( 11161, [ ~( subclass( X, Y ) ), ~( subclass( Y, X ) ), =( X, Y )
% 1.26/1.64     ] )
% 1.26/1.64  , clause( 11162, [ ~( member( X, 'unordered_pair'( Y, Z ) ) ), =( X, Y ), 
% 1.26/1.64    =( X, Z ) ] )
% 1.26/1.64  , clause( 11163, [ ~( member( X, 'universal_class' ) ), member( X, 
% 1.26/1.64    'unordered_pair'( X, Y ) ) ] )
% 1.26/1.64  , clause( 11164, [ ~( member( X, 'universal_class' ) ), member( X, 
% 1.26/1.64    'unordered_pair'( Y, X ) ) ] )
% 1.26/1.64  , clause( 11165, [ member( 'unordered_pair'( X, Y ), 'universal_class' ) ]
% 1.26/1.64     )
% 1.26/1.64  , clause( 11166, [ =( 'unordered_pair'( X, X ), singleton( X ) ) ] )
% 1.26/1.64  , clause( 11167, [ =( 'unordered_pair'( singleton( X ), 'unordered_pair'( X
% 1.26/1.64    , singleton( Y ) ) ), 'ordered_pair'( X, Y ) ) ] )
% 1.26/1.64  , clause( 11168, [ ~( member( 'ordered_pair'( X, Y ), 'cross_product'( Z, T
% 1.26/1.64     ) ) ), member( X, Z ) ] )
% 1.26/1.64  , clause( 11169, [ ~( member( 'ordered_pair'( X, Y ), 'cross_product'( Z, T
% 1.26/1.64     ) ) ), member( Y, T ) ] )
% 1.26/1.64  , clause( 11170, [ ~( member( X, Y ) ), ~( member( Z, T ) ), member( 
% 1.26/1.64    'ordered_pair'( X, Z ), 'cross_product'( Y, T ) ) ] )
% 1.26/1.64  , clause( 11171, [ ~( member( X, 'cross_product'( Y, Z ) ) ), =( 
% 1.26/1.64    'ordered_pair'( first( X ), second( X ) ), X ) ] )
% 1.26/1.64  , clause( 11172, [ subclass( 'element_relation', 'cross_product'( 
% 1.26/1.64    'universal_class', 'universal_class' ) ) ] )
% 1.26/1.64  , clause( 11173, [ ~( member( 'ordered_pair'( X, Y ), 'element_relation' )
% 1.26/1.64     ), member( X, Y ) ] )
% 1.26/1.64  , clause( 11174, [ ~( member( 'ordered_pair'( X, Y ), 'cross_product'( 
% 1.26/1.64    'universal_class', 'universal_class' ) ) ), ~( member( X, Y ) ), member( 
% 1.26/1.64    'ordered_pair'( X, Y ), 'element_relation' ) ] )
% 1.26/1.64  , clause( 11175, [ ~( member( X, intersection( Y, Z ) ) ), member( X, Y ) ]
% 1.26/1.64     )
% 1.26/1.64  , clause( 11176, [ ~( member( X, intersection( Y, Z ) ) ), member( X, Z ) ]
% 1.26/1.64     )
% 1.26/1.64  , clause( 11177, [ ~( member( X, Y ) ), ~( member( X, Z ) ), member( X, 
% 1.26/1.64    intersection( Y, Z ) ) ] )
% 1.26/1.64  , clause( 11178, [ ~( member( X, complement( Y ) ) ), ~( member( X, Y ) ) ]
% 1.26/1.64     )
% 1.26/1.64  , clause( 11179, [ ~( member( X, 'universal_class' ) ), member( X, 
% 1.26/1.64    complement( Y ) ), member( X, Y ) ] )
% 1.26/1.64  , clause( 11180, [ =( complement( intersection( complement( X ), complement( 
% 1.26/1.64    Y ) ) ), union( X, Y ) ) ] )
% 1.26/1.64  , clause( 11181, [ =( intersection( complement( intersection( X, Y ) ), 
% 1.26/1.64    complement( intersection( complement( X ), complement( Y ) ) ) ), 
% 1.26/1.64    'symmetric_difference'( X, Y ) ) ] )
% 1.26/1.64  , clause( 11182, [ =( intersection( X, 'cross_product'( Y, Z ) ), restrict( 
% 1.26/1.64    X, Y, Z ) ) ] )
% 1.26/1.64  , clause( 11183, [ =( intersection( 'cross_product'( X, Y ), Z ), restrict( 
% 1.26/1.64    Z, X, Y ) ) ] )
% 1.26/1.64  , clause( 11184, [ ~( =( restrict( X, singleton( Y ), 'universal_class' ), 
% 1.26/1.64    'null_class' ) ), ~( member( Y, 'domain_of'( X ) ) ) ] )
% 1.26/1.64  , clause( 11185, [ ~( member( X, 'universal_class' ) ), =( restrict( Y, 
% 1.26/1.64    singleton( X ), 'universal_class' ), 'null_class' ), member( X, 
% 1.26/1.64    'domain_of'( Y ) ) ] )
% 1.26/1.64  , clause( 11186, [ subclass( rotate( X ), 'cross_product'( 'cross_product'( 
% 1.26/1.64    'universal_class', 'universal_class' ), 'universal_class' ) ) ] )
% 1.26/1.64  , clause( 11187, [ ~( member( 'ordered_pair'( 'ordered_pair'( X, Y ), Z ), 
% 1.26/1.64    rotate( T ) ) ), member( 'ordered_pair'( 'ordered_pair'( Y, Z ), X ), T )
% 1.26/1.64     ] )
% 1.26/1.64  , clause( 11188, [ ~( member( 'ordered_pair'( 'ordered_pair'( X, Y ), Z ), 
% 1.26/1.64    T ) ), ~( member( 'ordered_pair'( 'ordered_pair'( Z, X ), Y ), 
% 1.26/1.64    'cross_product'( 'cross_product'( 'universal_class', 'universal_class' )
% 1.26/1.64    , 'universal_class' ) ) ), member( 'ordered_pair'( 'ordered_pair'( Z, X )
% 1.26/1.64    , Y ), rotate( T ) ) ] )
% 1.26/1.64  , clause( 11189, [ subclass( flip( X ), 'cross_product'( 'cross_product'( 
% 1.26/1.64    'universal_class', 'universal_class' ), 'universal_class' ) ) ] )
% 1.26/1.64  , clause( 11190, [ ~( member( 'ordered_pair'( 'ordered_pair'( X, Y ), Z ), 
% 1.26/1.64    flip( T ) ) ), member( 'ordered_pair'( 'ordered_pair'( Y, X ), Z ), T ) ]
% 1.26/1.64     )
% 1.26/1.64  , clause( 11191, [ ~( member( 'ordered_pair'( 'ordered_pair'( X, Y ), Z ), 
% 1.26/1.64    T ) ), ~( member( 'ordered_pair'( 'ordered_pair'( Y, X ), Z ), 
% 1.26/1.64    'cross_product'( 'cross_product'( 'universal_class', 'universal_class' )
% 1.26/1.64    , 'universal_class' ) ) ), member( 'ordered_pair'( 'ordered_pair'( Y, X )
% 1.26/1.64    , Z ), flip( T ) ) ] )
% 1.26/1.64  , clause( 11192, [ =( 'domain_of'( flip( 'cross_product'( X, 
% 1.26/1.64    'universal_class' ) ) ), inverse( X ) ) ] )
% 1.26/1.64  , clause( 11193, [ =( 'domain_of'( inverse( X ) ), 'range_of'( X ) ) ] )
% 1.26/1.64  , clause( 11194, [ =( first( 'not_subclass_element'( restrict( X, Y, 
% 1.26/1.64    singleton( Z ) ), 'null_class' ) ), domain( X, Y, Z ) ) ] )
% 1.26/1.64  , clause( 11195, [ =( second( 'not_subclass_element'( restrict( X, 
% 1.26/1.64    singleton( Y ), Z ), 'null_class' ) ), range( X, Y, Z ) ) ] )
% 1.26/1.64  , clause( 11196, [ =( 'range_of'( restrict( X, Y, 'universal_class' ) ), 
% 1.26/1.64    image( X, Y ) ) ] )
% 1.26/1.64  , clause( 11197, [ =( union( X, singleton( X ) ), successor( X ) ) ] )
% 1.26/1.64  , clause( 11198, [ subclass( 'successor_relation', 'cross_product'( 
% 1.26/1.64    'universal_class', 'universal_class' ) ) ] )
% 1.26/1.64  , clause( 11199, [ ~( member( 'ordered_pair'( X, Y ), 'successor_relation'
% 1.26/1.64     ) ), =( successor( X ), Y ) ] )
% 1.26/1.64  , clause( 11200, [ ~( =( successor( X ), Y ) ), ~( member( 'ordered_pair'( 
% 1.26/1.64    X, Y ), 'cross_product'( 'universal_class', 'universal_class' ) ) ), 
% 1.26/1.64    member( 'ordered_pair'( X, Y ), 'successor_relation' ) ] )
% 1.26/1.64  , clause( 11201, [ ~( inductive( X ) ), member( 'null_class', X ) ] )
% 1.26/1.64  , clause( 11202, [ ~( inductive( X ) ), subclass( image( 
% 1.26/1.64    'successor_relation', X ), X ) ] )
% 1.26/1.64  , clause( 11203, [ ~( member( 'null_class', X ) ), ~( subclass( image( 
% 1.26/1.64    'successor_relation', X ), X ) ), inductive( X ) ] )
% 1.26/1.64  , clause( 11204, [ inductive( omega ) ] )
% 1.26/1.64  , clause( 11205, [ ~( inductive( X ) ), subclass( omega, X ) ] )
% 1.26/1.64  , clause( 11206, [ member( omega, 'universal_class' ) ] )
% 1.26/1.64  , clause( 11207, [ =( 'domain_of'( restrict( 'element_relation', 
% 1.26/1.64    'universal_class', X ) ), 'sum_class'( X ) ) ] )
% 1.26/1.64  , clause( 11208, [ ~( member( X, 'universal_class' ) ), member( 'sum_class'( 
% 1.26/1.64    X ), 'universal_class' ) ] )
% 1.26/1.64  , clause( 11209, [ =( complement( image( 'element_relation', complement( X
% 1.26/1.64     ) ) ), 'power_class'( X ) ) ] )
% 1.26/1.64  , clause( 11210, [ ~( member( X, 'universal_class' ) ), member( 
% 1.26/1.64    'power_class'( X ), 'universal_class' ) ] )
% 1.26/1.64  , clause( 11211, [ subclass( compose( X, Y ), 'cross_product'( 
% 1.26/1.64    'universal_class', 'universal_class' ) ) ] )
% 1.26/1.64  , clause( 11212, [ ~( member( 'ordered_pair'( X, Y ), compose( Z, T ) ) ), 
% 1.26/1.64    member( Y, image( Z, image( T, singleton( X ) ) ) ) ] )
% 1.26/1.64  , clause( 11213, [ ~( member( X, image( Y, image( Z, singleton( T ) ) ) ) )
% 1.26/1.64    , ~( member( 'ordered_pair'( T, X ), 'cross_product'( 'universal_class', 
% 1.26/1.64    'universal_class' ) ) ), member( 'ordered_pair'( T, X ), compose( Y, Z )
% 1.26/1.64     ) ] )
% 1.26/1.64  , clause( 11214, [ ~( 'single_valued_class'( X ) ), subclass( compose( X, 
% 1.26/1.64    inverse( X ) ), 'identity_relation' ) ] )
% 1.26/1.64  , clause( 11215, [ ~( subclass( compose( X, inverse( X ) ), 
% 1.26/1.64    'identity_relation' ) ), 'single_valued_class'( X ) ] )
% 1.26/1.64  , clause( 11216, [ ~( function( X ) ), subclass( X, 'cross_product'( 
% 1.26/1.64    'universal_class', 'universal_class' ) ) ] )
% 1.26/1.64  , clause( 11217, [ ~( function( X ) ), subclass( compose( X, inverse( X ) )
% 1.26/1.64    , 'identity_relation' ) ] )
% 1.26/1.64  , clause( 11218, [ ~( subclass( X, 'cross_product'( 'universal_class', 
% 1.26/1.64    'universal_class' ) ) ), ~( subclass( compose( X, inverse( X ) ), 
% 1.26/1.64    'identity_relation' ) ), function( X ) ] )
% 1.26/1.64  , clause( 11219, [ ~( function( X ) ), ~( member( Y, 'universal_class' ) )
% 1.26/1.64    , member( image( X, Y ), 'universal_class' ) ] )
% 1.26/1.64  , clause( 11220, [ =( X, 'null_class' ), member( regular( X ), X ) ] )
% 1.26/1.64  , clause( 11221, [ =( X, 'null_class' ), =( intersection( X, regular( X ) )
% 1.26/1.64    , 'null_class' ) ] )
% 1.26/1.64  , clause( 11222, [ =( 'sum_class'( image( X, singleton( Y ) ) ), apply( X, 
% 1.26/1.64    Y ) ) ] )
% 1.26/1.64  , clause( 11223, [ function( choice ) ] )
% 1.26/1.64  , clause( 11224, [ ~( member( X, 'universal_class' ) ), =( X, 'null_class'
% 1.26/1.64     ), member( apply( choice, X ), X ) ] )
% 1.26/1.64  , clause( 11225, [ ~( 'one_to_one'( X ) ), function( X ) ] )
% 1.26/1.64  , clause( 11226, [ ~( 'one_to_one'( X ) ), function( inverse( X ) ) ] )
% 1.26/1.64  , clause( 11227, [ ~( function( inverse( X ) ) ), ~( function( X ) ), 
% 1.26/1.64    'one_to_one'( X ) ] )
% 1.26/1.64  , clause( 11228, [ =( intersection( 'cross_product'( 'universal_class', 
% 1.26/1.64    'universal_class' ), intersection( 'cross_product'( 'universal_class', 
% 1.26/1.64    'universal_class' ), complement( compose( complement( 'element_relation'
% 1.26/1.64     ), inverse( 'element_relation' ) ) ) ) ), 'subset_relation' ) ] )
% 1.26/1.64  , clause( 11229, [ =( intersection( inverse( 'subset_relation' ), 
% 1.26/1.64    'subset_relation' ), 'identity_relation' ) ] )
% 1.26/1.64  , clause( 11230, [ =( complement( 'domain_of'( intersection( X, 
% 1.26/1.64    'identity_relation' ) ) ), diagonalise( X ) ) ] )
% 1.26/1.64  , clause( 11231, [ =( intersection( 'domain_of'( X ), diagonalise( compose( 
% 1.26/1.64    inverse( 'element_relation' ), X ) ) ), cantor( X ) ) ] )
% 1.26/1.64  , clause( 11232, [ ~( operation( X ) ), function( X ) ] )
% 1.26/1.64  , clause( 11233, [ ~( operation( X ) ), =( 'cross_product'( 'domain_of'( 
% 1.26/1.64    'domain_of'( X ) ), 'domain_of'( 'domain_of'( X ) ) ), 'domain_of'( X ) )
% 1.26/1.64     ] )
% 1.26/1.64  , clause( 11234, [ ~( operation( X ) ), subclass( 'range_of'( X ), 
% 1.26/1.64    'domain_of'( 'domain_of'( X ) ) ) ] )
% 1.26/1.64  , clause( 11235, [ ~( function( X ) ), ~( =( 'cross_product'( 'domain_of'( 
% 1.26/1.64    'domain_of'( X ) ), 'domain_of'( 'domain_of'( X ) ) ), 'domain_of'( X ) )
% 1.26/1.64     ), ~( subclass( 'range_of'( X ), 'domain_of'( 'domain_of'( X ) ) ) ), 
% 1.26/1.64    operation( X ) ] )
% 1.26/1.64  , clause( 11236, [ ~( compatible( X, Y, Z ) ), function( X ) ] )
% 1.26/1.64  , clause( 11237, [ ~( compatible( X, Y, Z ) ), =( 'domain_of'( 'domain_of'( 
% 1.26/1.64    Y ) ), 'domain_of'( X ) ) ] )
% 1.26/1.64  , clause( 11238, [ ~( compatible( X, Y, Z ) ), subclass( 'range_of'( X ), 
% 1.26/1.64    'domain_of'( 'domain_of'( Z ) ) ) ] )
% 1.26/1.64  , clause( 11239, [ ~( function( X ) ), ~( =( 'domain_of'( 'domain_of'( Y )
% 1.26/1.64     ), 'domain_of'( X ) ) ), ~( subclass( 'range_of'( X ), 'domain_of'( 
% 1.26/1.64    'domain_of'( Z ) ) ) ), compatible( X, Y, Z ) ] )
% 1.26/1.64  , clause( 11240, [ ~( homomorphism( X, Y, Z ) ), operation( Y ) ] )
% 1.26/1.64  , clause( 11241, [ ~( homomorphism( X, Y, Z ) ), operation( Z ) ] )
% 1.26/1.64  , clause( 11242, [ ~( homomorphism( X, Y, Z ) ), compatible( X, Y, Z ) ] )
% 1.26/1.64  , clause( 11243, [ ~( homomorphism( X, Y, Z ) ), ~( member( 'ordered_pair'( 
% 1.26/1.64    T, U ), 'domain_of'( Y ) ) ), =( apply( Z, 'ordered_pair'( apply( X, T )
% 1.26/1.64    , apply( X, U ) ) ), apply( X, apply( Y, 'ordered_pair'( T, U ) ) ) ) ]
% 1.26/1.64     )
% 1.26/1.64  , clause( 11244, [ ~( operation( X ) ), ~( operation( Y ) ), ~( compatible( 
% 1.26/1.64    Z, X, Y ) ), member( 'ordered_pair'( 'not_homomorphism1'( Z, X, Y ), 
% 1.26/1.64    'not_homomorphism2'( Z, X, Y ) ), 'domain_of'( X ) ), homomorphism( Z, X
% 1.26/1.64    , Y ) ] )
% 1.26/1.64  , clause( 11245, [ ~( operation( X ) ), ~( operation( Y ) ), ~( compatible( 
% 1.26/1.64    Z, X, Y ) ), ~( =( apply( Y, 'ordered_pair'( apply( Z, 
% 1.26/1.64    'not_homomorphism1'( Z, X, Y ) ), apply( Z, 'not_homomorphism2'( Z, X, Y
% 1.26/1.64     ) ) ) ), apply( Z, apply( X, 'ordered_pair'( 'not_homomorphism1'( Z, X, 
% 1.26/1.64    Y ), 'not_homomorphism2'( Z, X, Y ) ) ) ) ) ), homomorphism( Z, X, Y ) ]
% 1.26/1.64     )
% 1.26/1.64  , clause( 11246, [ =( singleton( 'member_of'( x ) ), x ) ] )
% 1.26/1.64  , clause( 11247, [ member( y, x ) ] )
% 1.26/1.64  , clause( 11248, [ ~( =( 'member_of'( x ), y ) ) ] )
% 1.26/1.64  ] ).
% 1.26/1.64  
% 1.26/1.64  
% 1.26/1.64  
% 1.26/1.64  subsumption(
% 1.26/1.64  clause( 4, [ ~( =( X, Y ) ), subclass( X, Y ) ] )
% 1.26/1.64  , clause( 11159, [ ~( =( X, Y ) ), subclass( X, Y ) ] )
% 1.26/1.64  , substitution( 0, [ :=( X, X ), :=( Y, Y )] ), permutation( 0, [ ==>( 0, 0
% 1.26/1.64     ), ==>( 1, 1 )] ) ).
% 1.26/1.64  
% 1.26/1.64  
% 1.26/1.64  subsumption(
% 1.26/1.64  clause( 5, [ ~( subclass( X, Y ) ), ~( subclass( Y, X ) ), =( X, Y ) ] )
% 1.26/1.64  , clause( 11161, [ ~( subclass( X, Y ) ), ~( subclass( Y, X ) ), =( X, Y )
% 1.26/1.64     ] )
% 1.26/1.64  , substitution( 0, [ :=( X, X ), :=( Y, Y )] ), permutation( 0, [ ==>( 0, 0
% 1.26/1.64     ), ==>( 1, 1 ), ==>( 2, 2 )] ) ).
% 1.26/1.64  
% 1.26/1.64  
% 1.26/1.64  subsumption(
% 1.26/1.64  clause( 6, [ ~( member( X, 'unordered_pair'( Y, Z ) ) ), =( X, Y ), =( X, Z
% 1.26/1.64     ) ] )
% 1.26/1.64  , clause( 11162, [ ~( member( X, 'unordered_pair'( Y, Z ) ) ), =( X, Y ), 
% 1.26/1.64    =( X, Z ) ] )
% 1.26/1.64  , substitution( 0, [ :=( X, X ), :=( Y, Y ), :=( Z, Z )] ), 
% 1.26/1.64    permutation( 0, [ ==>( 0, 0 ), ==>( 1, 1 ), ==>( 2, 2 )] ) ).
% 1.26/1.64  
% 1.26/1.64  
% 1.26/1.64  subsumption(
% 1.26/1.64  clause( 10, [ =( 'unordered_pair'( X, X ), singleton( X ) ) ] )
% 1.26/1.65  , clause( 11166, [ =( 'unordered_pair'( X, X ), singleton( X ) ) ] )
% 1.26/1.65  , substitution( 0, [ :=( X, X )] ), permutation( 0, [ ==>( 0, 0 )] ) ).
% 1.26/1.65  
% 1.26/1.65  
% 1.26/1.65  subsumption(
% 1.26/1.65  clause( 90, [ =( singleton( 'member_of'( x ) ), x ) ] )
% 1.26/1.65  , clause( 11246, [ =( singleton( 'member_of'( x ) ), x ) ] )
% 1.26/1.65  , substitution( 0, [] ), permutation( 0, [ ==>( 0, 0 )] ) ).
% 1.26/1.65  
% 1.26/1.65  
% 1.26/1.65  subsumption(
% 1.26/1.65  clause( 91, [ member( y, x ) ] )
% 1.26/1.65  , clause( 11247, [ member( y, x ) ] )
% 1.26/1.65  , substitution( 0, [] ), permutation( 0, [ ==>( 0, 0 )] ) ).
% 1.26/1.65  
% 1.26/1.65  
% 1.26/1.65  subsumption(
% 1.26/1.65  clause( 92, [ ~( =( 'member_of'( x ), y ) ) ] )
% 1.26/1.65  , clause( 11248, [ ~( =( 'member_of'( x ), y ) ) ] )
% 1.26/1.65  , substitution( 0, [] ), permutation( 0, [ ==>( 0, 0 )] ) ).
% 1.26/1.65  
% 1.26/1.65  
% 1.26/1.65  factor(
% 1.26/1.65  clause( 11430, [ ~( member( X, 'unordered_pair'( Y, Y ) ) ), =( X, Y ) ] )
% 1.26/1.65  , clause( 6, [ ~( member( X, 'unordered_pair'( Y, Z ) ) ), =( X, Y ), =( X
% 1.26/1.65    , Z ) ] )
% 1.26/1.65  , 1, 2, substitution( 0, [ :=( X, X ), :=( Y, Y ), :=( Z, Y )] )).
% 1.26/1.65  
% 1.26/1.65  
% 1.26/1.65  paramod(
% 1.26/1.65  clause( 11431, [ ~( member( X, singleton( Y ) ) ), =( X, Y ) ] )
% 1.26/1.65  , clause( 10, [ =( 'unordereCputime limit exceeded (core dumped)
%------------------------------------------------------------------------------