TSTP Solution File: SET057-7 by Bliksem---1.12

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : Bliksem---1.12
% Problem  : SET057-7 : TPTP v8.1.0. Bugfixed v2.1.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : bliksem %s

% Computer : n004.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 22:46:14 EDT 2022

% Result   : Unsatisfiable 0.47s 1.15s
% Output   : Refutation 0.47s
% Verified : 
% SZS Type : -

% Comments : 
%------------------------------------------------------------------------------
%----WARNING: Could not form TPTP format derivation
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.07/0.13  % Problem  : SET057-7 : TPTP v8.1.0. Bugfixed v2.1.0.
% 0.07/0.14  % Command  : bliksem %s
% 0.13/0.35  % Computer : n004.cluster.edu
% 0.13/0.35  % Model    : x86_64 x86_64
% 0.13/0.35  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.13/0.35  % Memory   : 8042.1875MB
% 0.13/0.35  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.13/0.35  % CPULimit : 300
% 0.13/0.35  % DateTime : Sun Jul 10 22:04:07 EDT 2022
% 0.13/0.35  % CPUTime  : 
% 0.47/1.14  *** allocated 10000 integers for termspace/termends
% 0.47/1.14  *** allocated 10000 integers for clauses
% 0.47/1.14  *** allocated 10000 integers for justifications
% 0.47/1.14  Bliksem 1.12
% 0.47/1.14  
% 0.47/1.14  
% 0.47/1.14  Automatic Strategy Selection
% 0.47/1.14  
% 0.47/1.14  Clauses:
% 0.47/1.14  [
% 0.47/1.14     [ ~( subclass( X, Y ) ), ~( member( Z, X ) ), member( Z, Y ) ],
% 0.47/1.14     [ member( 'not_subclass_element'( X, Y ), X ), subclass( X, Y ) ],
% 0.47/1.14     [ ~( member( 'not_subclass_element'( X, Y ), Y ) ), subclass( X, Y ) ]
% 0.47/1.14    ,
% 0.47/1.14     [ subclass( X, 'universal_class' ) ],
% 0.47/1.14     [ ~( =( X, Y ) ), subclass( X, Y ) ],
% 0.47/1.14     [ ~( =( X, Y ) ), subclass( Y, X ) ],
% 0.47/1.14     [ ~( subclass( X, Y ) ), ~( subclass( Y, X ) ), =( X, Y ) ],
% 0.47/1.14     [ ~( member( X, 'unordered_pair'( Y, Z ) ) ), =( X, Y ), =( X, Z ) ]
% 0.47/1.14    ,
% 0.47/1.14     [ ~( member( X, 'universal_class' ) ), member( X, 'unordered_pair'( X, Y
% 0.47/1.14     ) ) ],
% 0.47/1.14     [ ~( member( X, 'universal_class' ) ), member( X, 'unordered_pair'( Y, X
% 0.47/1.14     ) ) ],
% 0.47/1.14     [ member( 'unordered_pair'( X, Y ), 'universal_class' ) ],
% 0.47/1.14     [ =( 'unordered_pair'( X, X ), singleton( X ) ) ],
% 0.47/1.14     [ =( 'unordered_pair'( singleton( X ), 'unordered_pair'( X, singleton( Y
% 0.47/1.14     ) ) ), 'ordered_pair'( X, Y ) ) ],
% 0.47/1.14     [ ~( member( 'ordered_pair'( X, Y ), 'cross_product'( Z, T ) ) ), member( 
% 0.47/1.14    X, Z ) ],
% 0.47/1.14     [ ~( member( 'ordered_pair'( X, Y ), 'cross_product'( Z, T ) ) ), member( 
% 0.47/1.14    Y, T ) ],
% 0.47/1.14     [ ~( member( X, Y ) ), ~( member( Z, T ) ), member( 'ordered_pair'( X, Z
% 0.47/1.14     ), 'cross_product'( Y, T ) ) ],
% 0.47/1.14     [ ~( member( X, 'cross_product'( Y, Z ) ) ), =( 'ordered_pair'( first( X
% 0.47/1.14     ), second( X ) ), X ) ],
% 0.47/1.14     [ subclass( 'element_relation', 'cross_product'( 'universal_class', 
% 0.47/1.14    'universal_class' ) ) ],
% 0.47/1.14     [ ~( member( 'ordered_pair'( X, Y ), 'element_relation' ) ), member( X, 
% 0.47/1.14    Y ) ],
% 0.47/1.14     [ ~( member( 'ordered_pair'( X, Y ), 'cross_product'( 'universal_class'
% 0.47/1.14    , 'universal_class' ) ) ), ~( member( X, Y ) ), member( 'ordered_pair'( X
% 0.47/1.14    , Y ), 'element_relation' ) ],
% 0.47/1.14     [ ~( member( X, intersection( Y, Z ) ) ), member( X, Y ) ],
% 0.47/1.14     [ ~( member( X, intersection( Y, Z ) ) ), member( X, Z ) ],
% 0.47/1.14     [ ~( member( X, Y ) ), ~( member( X, Z ) ), member( X, intersection( Y, 
% 0.47/1.14    Z ) ) ],
% 0.47/1.14     [ ~( member( X, complement( Y ) ) ), ~( member( X, Y ) ) ],
% 0.47/1.14     [ ~( member( X, 'universal_class' ) ), member( X, complement( Y ) ), 
% 0.47/1.14    member( X, Y ) ],
% 0.47/1.14     [ =( complement( intersection( complement( X ), complement( Y ) ) ), 
% 0.47/1.14    union( X, Y ) ) ],
% 0.47/1.14     [ =( intersection( complement( intersection( X, Y ) ), complement( 
% 0.47/1.14    intersection( complement( X ), complement( Y ) ) ) ), 
% 0.47/1.14    'symmetric_difference'( X, Y ) ) ],
% 0.47/1.14     [ =( intersection( X, 'cross_product'( Y, Z ) ), restrict( X, Y, Z ) ) ]
% 0.47/1.14    ,
% 0.47/1.14     [ =( intersection( 'cross_product'( X, Y ), Z ), restrict( Z, X, Y ) ) ]
% 0.47/1.14    ,
% 0.47/1.14     [ ~( =( restrict( X, singleton( Y ), 'universal_class' ), 'null_class' )
% 0.47/1.14     ), ~( member( Y, 'domain_of'( X ) ) ) ],
% 0.47/1.14     [ ~( member( X, 'universal_class' ) ), =( restrict( Y, singleton( X ), 
% 0.47/1.14    'universal_class' ), 'null_class' ), member( X, 'domain_of'( Y ) ) ],
% 0.47/1.14     [ subclass( rotate( X ), 'cross_product'( 'cross_product'( 
% 0.47/1.14    'universal_class', 'universal_class' ), 'universal_class' ) ) ],
% 0.47/1.14     [ ~( member( 'ordered_pair'( 'ordered_pair'( X, Y ), Z ), rotate( T ) )
% 0.47/1.14     ), member( 'ordered_pair'( 'ordered_pair'( Y, Z ), X ), T ) ],
% 0.47/1.14     [ ~( member( 'ordered_pair'( 'ordered_pair'( X, Y ), Z ), T ) ), ~( 
% 0.47/1.14    member( 'ordered_pair'( 'ordered_pair'( Z, X ), Y ), 'cross_product'( 
% 0.47/1.14    'cross_product'( 'universal_class', 'universal_class' ), 
% 0.47/1.14    'universal_class' ) ) ), member( 'ordered_pair'( 'ordered_pair'( Z, X ), 
% 0.47/1.14    Y ), rotate( T ) ) ],
% 0.47/1.14     [ subclass( flip( X ), 'cross_product'( 'cross_product'( 
% 0.47/1.14    'universal_class', 'universal_class' ), 'universal_class' ) ) ],
% 0.47/1.14     [ ~( member( 'ordered_pair'( 'ordered_pair'( X, Y ), Z ), flip( T ) ) )
% 0.47/1.14    , member( 'ordered_pair'( 'ordered_pair'( Y, X ), Z ), T ) ],
% 0.47/1.14     [ ~( member( 'ordered_pair'( 'ordered_pair'( X, Y ), Z ), T ) ), ~( 
% 0.47/1.14    member( 'ordered_pair'( 'ordered_pair'( Y, X ), Z ), 'cross_product'( 
% 0.47/1.14    'cross_product'( 'universal_class', 'universal_class' ), 
% 0.47/1.14    'universal_class' ) ) ), member( 'ordered_pair'( 'ordered_pair'( Y, X ), 
% 0.47/1.14    Z ), flip( T ) ) ],
% 0.47/1.14     [ =( 'domain_of'( flip( 'cross_product'( X, 'universal_class' ) ) ), 
% 0.47/1.14    inverse( X ) ) ],
% 0.47/1.14     [ =( 'domain_of'( inverse( X ) ), 'range_of'( X ) ) ],
% 0.47/1.14     [ =( first( 'not_subclass_element'( restrict( X, Y, singleton( Z ) ), 
% 0.47/1.14    'null_class' ) ), domain( X, Y, Z ) ) ],
% 0.47/1.14     [ =( second( 'not_subclass_element'( restrict( X, singleton( Y ), Z ), 
% 0.47/1.14    'null_class' ) ), range( X, Y, Z ) ) ],
% 0.47/1.14     [ =( 'range_of'( restrict( X, Y, 'universal_class' ) ), image( X, Y ) )
% 0.47/1.14     ],
% 0.47/1.14     [ =( union( X, singleton( X ) ), successor( X ) ) ],
% 0.47/1.14     [ subclass( 'successor_relation', 'cross_product'( 'universal_class', 
% 0.47/1.14    'universal_class' ) ) ],
% 0.47/1.14     [ ~( member( 'ordered_pair'( X, Y ), 'successor_relation' ) ), =( 
% 0.47/1.14    successor( X ), Y ) ],
% 0.47/1.14     [ ~( =( successor( X ), Y ) ), ~( member( 'ordered_pair'( X, Y ), 
% 0.47/1.14    'cross_product'( 'universal_class', 'universal_class' ) ) ), member( 
% 0.47/1.14    'ordered_pair'( X, Y ), 'successor_relation' ) ],
% 0.47/1.14     [ ~( inductive( X ) ), member( 'null_class', X ) ],
% 0.47/1.14     [ ~( inductive( X ) ), subclass( image( 'successor_relation', X ), X ) ]
% 0.47/1.14    ,
% 0.47/1.14     [ ~( member( 'null_class', X ) ), ~( subclass( image( 
% 0.47/1.14    'successor_relation', X ), X ) ), inductive( X ) ],
% 0.47/1.14     [ inductive( omega ) ],
% 0.47/1.14     [ ~( inductive( X ) ), subclass( omega, X ) ],
% 0.47/1.14     [ member( omega, 'universal_class' ) ],
% 0.47/1.14     [ =( 'domain_of'( restrict( 'element_relation', 'universal_class', X ) )
% 0.47/1.14    , 'sum_class'( X ) ) ],
% 0.47/1.14     [ ~( member( X, 'universal_class' ) ), member( 'sum_class'( X ), 
% 0.47/1.14    'universal_class' ) ],
% 0.47/1.14     [ =( complement( image( 'element_relation', complement( X ) ) ), 
% 0.47/1.14    'power_class'( X ) ) ],
% 0.47/1.14     [ ~( member( X, 'universal_class' ) ), member( 'power_class'( X ), 
% 0.47/1.14    'universal_class' ) ],
% 0.47/1.14     [ subclass( compose( X, Y ), 'cross_product'( 'universal_class', 
% 0.47/1.14    'universal_class' ) ) ],
% 0.47/1.14     [ ~( member( 'ordered_pair'( X, Y ), compose( Z, T ) ) ), member( Y, 
% 0.47/1.14    image( Z, image( T, singleton( X ) ) ) ) ],
% 0.47/1.14     [ ~( member( X, image( Y, image( Z, singleton( T ) ) ) ) ), ~( member( 
% 0.47/1.14    'ordered_pair'( T, X ), 'cross_product'( 'universal_class', 
% 0.47/1.14    'universal_class' ) ) ), member( 'ordered_pair'( T, X ), compose( Y, Z )
% 0.47/1.14     ) ],
% 0.47/1.14     [ ~( 'single_valued_class'( X ) ), subclass( compose( X, inverse( X ) )
% 0.47/1.14    , 'identity_relation' ) ],
% 0.47/1.14     [ ~( subclass( compose( X, inverse( X ) ), 'identity_relation' ) ), 
% 0.47/1.14    'single_valued_class'( X ) ],
% 0.47/1.14     [ ~( function( X ) ), subclass( X, 'cross_product'( 'universal_class', 
% 0.47/1.14    'universal_class' ) ) ],
% 0.47/1.14     [ ~( function( X ) ), subclass( compose( X, inverse( X ) ), 
% 0.47/1.14    'identity_relation' ) ],
% 0.47/1.14     [ ~( subclass( X, 'cross_product'( 'universal_class', 'universal_class'
% 0.47/1.14     ) ) ), ~( subclass( compose( X, inverse( X ) ), 'identity_relation' ) )
% 0.47/1.14    , function( X ) ],
% 0.47/1.14     [ ~( function( X ) ), ~( member( Y, 'universal_class' ) ), member( image( 
% 0.47/1.14    X, Y ), 'universal_class' ) ],
% 0.47/1.14     [ =( X, 'null_class' ), member( regular( X ), X ) ],
% 0.47/1.14     [ =( X, 'null_class' ), =( intersection( X, regular( X ) ), 'null_class'
% 0.47/1.14     ) ],
% 0.47/1.14     [ =( 'sum_class'( image( X, singleton( Y ) ) ), apply( X, Y ) ) ],
% 0.47/1.14     [ function( choice ) ],
% 0.47/1.14     [ ~( member( X, 'universal_class' ) ), =( X, 'null_class' ), member( 
% 0.47/1.14    apply( choice, X ), X ) ],
% 0.47/1.14     [ ~( 'one_to_one'( X ) ), function( X ) ],
% 0.47/1.14     [ ~( 'one_to_one'( X ) ), function( inverse( X ) ) ],
% 0.47/1.14     [ ~( function( inverse( X ) ) ), ~( function( X ) ), 'one_to_one'( X ) ]
% 0.47/1.14    ,
% 0.47/1.14     [ =( intersection( 'cross_product'( 'universal_class', 'universal_class'
% 0.47/1.14     ), intersection( 'cross_product'( 'universal_class', 'universal_class' )
% 0.47/1.14    , complement( compose( complement( 'element_relation' ), inverse( 
% 0.47/1.14    'element_relation' ) ) ) ) ), 'subset_relation' ) ],
% 0.47/1.14     [ =( intersection( inverse( 'subset_relation' ), 'subset_relation' ), 
% 0.47/1.14    'identity_relation' ) ],
% 0.47/1.14     [ =( complement( 'domain_of'( intersection( X, 'identity_relation' ) ) )
% 0.47/1.14    , diagonalise( X ) ) ],
% 0.47/1.14     [ =( intersection( 'domain_of'( X ), diagonalise( compose( inverse( 
% 0.47/1.14    'element_relation' ), X ) ) ), cantor( X ) ) ],
% 0.47/1.14     [ ~( operation( X ) ), function( X ) ],
% 0.47/1.14     [ ~( operation( X ) ), =( 'cross_product'( 'domain_of'( 'domain_of'( X )
% 0.47/1.14     ), 'domain_of'( 'domain_of'( X ) ) ), 'domain_of'( X ) ) ],
% 0.47/1.14     [ ~( operation( X ) ), subclass( 'range_of'( X ), 'domain_of'( 
% 0.47/1.14    'domain_of'( X ) ) ) ],
% 0.47/1.14     [ ~( function( X ) ), ~( =( 'cross_product'( 'domain_of'( 'domain_of'( X
% 0.47/1.14     ) ), 'domain_of'( 'domain_of'( X ) ) ), 'domain_of'( X ) ) ), ~( 
% 0.47/1.14    subclass( 'range_of'( X ), 'domain_of'( 'domain_of'( X ) ) ) ), operation( 
% 0.47/1.14    X ) ],
% 0.47/1.14     [ ~( compatible( X, Y, Z ) ), function( X ) ],
% 0.47/1.14     [ ~( compatible( X, Y, Z ) ), =( 'domain_of'( 'domain_of'( Y ) ), 
% 0.47/1.14    'domain_of'( X ) ) ],
% 0.47/1.14     [ ~( compatible( X, Y, Z ) ), subclass( 'range_of'( X ), 'domain_of'( 
% 0.47/1.14    'domain_of'( Z ) ) ) ],
% 0.47/1.14     [ ~( function( X ) ), ~( =( 'domain_of'( 'domain_of'( Y ) ), 'domain_of'( 
% 0.47/1.14    X ) ) ), ~( subclass( 'range_of'( X ), 'domain_of'( 'domain_of'( Z ) ) )
% 0.47/1.14     ), compatible( X, Y, Z ) ],
% 0.47/1.14     [ ~( homomorphism( X, Y, Z ) ), operation( Y ) ],
% 0.47/1.14     [ ~( homomorphism( X, Y, Z ) ), operation( Z ) ],
% 0.47/1.14     [ ~( homomorphism( X, Y, Z ) ), compatible( X, Y, Z ) ],
% 0.47/1.14     [ ~( homomorphism( X, Y, Z ) ), ~( member( 'ordered_pair'( T, U ), 
% 0.47/1.14    'domain_of'( Y ) ) ), =( apply( Z, 'ordered_pair'( apply( X, T ), apply( 
% 0.47/1.14    X, U ) ) ), apply( X, apply( Y, 'ordered_pair'( T, U ) ) ) ) ],
% 0.47/1.14     [ ~( operation( X ) ), ~( operation( Y ) ), ~( compatible( Z, X, Y ) ), 
% 0.47/1.14    member( 'ordered_pair'( 'not_homomorphism1'( Z, X, Y ), 
% 0.47/1.14    'not_homomorphism2'( Z, X, Y ) ), 'domain_of'( X ) ), homomorphism( Z, X
% 0.47/1.14    , Y ) ],
% 0.47/1.14     [ ~( operation( X ) ), ~( operation( Y ) ), ~( compatible( Z, X, Y ) ), 
% 0.47/1.14    ~( =( apply( Y, 'ordered_pair'( apply( Z, 'not_homomorphism1'( Z, X, Y )
% 0.47/1.14     ), apply( Z, 'not_homomorphism2'( Z, X, Y ) ) ) ), apply( Z, apply( X, 
% 0.47/1.14    'ordered_pair'( 'not_homomorphism1'( Z, X, Y ), 'not_homomorphism2'( Z, X
% 0.47/1.14    , Y ) ) ) ) ) ), homomorphism( Z, X, Y ) ],
% 0.47/1.14     [ ~( member( 'ordered_pair'( X, Y ), 'cross_product'( Z, T ) ) ), member( 
% 0.47/1.14    X, 'unordered_pair'( X, Y ) ) ],
% 0.47/1.14     [ ~( member( 'ordered_pair'( X, Y ), 'cross_product'( Z, T ) ) ), member( 
% 0.47/1.14    Y, 'unordered_pair'( X, Y ) ) ],
% 0.47/1.14     [ ~( member( 'ordered_pair'( X, Y ), 'cross_product'( Z, T ) ) ), member( 
% 0.47/1.14    X, 'universal_class' ) ],
% 0.47/1.14     [ ~( member( 'ordered_pair'( X, Y ), 'cross_product'( Z, T ) ) ), member( 
% 0.47/1.14    Y, 'universal_class' ) ],
% 0.47/1.14     [ subclass( X, X ) ],
% 0.47/1.14     [ ~( subclass( X, Y ) ), ~( subclass( Y, Z ) ), subclass( X, Z ) ],
% 0.47/1.14     [ member( 'not_subclass_element'( x, y ), y ) ],
% 0.47/1.14     [ ~( =( x, y ) ) ],
% 0.47/1.14     [ ~( member( 'not_subclass_element'( y, x ), y ) ) ]
% 0.47/1.14  ] .
% 0.47/1.14  
% 0.47/1.14  
% 0.47/1.14  percentage equality = 0.204082, percentage horn = 0.920000
% 0.47/1.14  This is a problem with some equality
% 0.47/1.14  
% 0.47/1.14  
% 0.47/1.14  
% 0.47/1.14  Options Used:
% 0.47/1.14  
% 0.47/1.14  useres =            1
% 0.47/1.14  useparamod =        1
% 0.47/1.14  useeqrefl =         1
% 0.47/1.14  useeqfact =         1
% 0.47/1.14  usefactor =         1
% 0.47/1.14  usesimpsplitting =  0
% 0.47/1.14  usesimpdemod =      5
% 0.47/1.14  usesimpres =        3
% 0.47/1.14  
% 0.47/1.14  resimpinuse      =  1000
% 0.47/1.14  resimpclauses =     20000
% 0.47/1.14  substype =          eqrewr
% 0.47/1.14  backwardsubs =      1
% 0.47/1.14  selectoldest =      5
% 0.47/1.14  
% 0.47/1.14  litorderings [0] =  split
% 0.47/1.14  litorderings [1] =  extend the termordering, first sorting on arguments
% 0.47/1.14  
% 0.47/1.14  termordering =      kbo
% 0.47/1.14  
% 0.47/1.14  litapriori =        0
% 0.47/1.14  termapriori =       1
% 0.47/1.14  litaposteriori =    0
% 0.47/1.14  termaposteriori =   0
% 0.47/1.14  demodaposteriori =  0
% 0.47/1.14  ordereqreflfact =   0
% 0.47/1.14  
% 0.47/1.14  litselect =         negord
% 0.47/1.14  
% 0.47/1.14  maxweight =         15
% 0.47/1.14  maxdepth =          30000
% 0.47/1.14  maxlength =         115
% 0.47/1.15  maxnrvars =         195
% 0.47/1.15  excuselevel =       1
% 0.47/1.15  increasemaxweight = 1
% 0.47/1.15  
% 0.47/1.15  maxselected =       10000000
% 0.47/1.15  maxnrclauses =      10000000
% 0.47/1.15  
% 0.47/1.15  showgenerated =    0
% 0.47/1.15  showkept =         0
% 0.47/1.15  showselected =     0
% 0.47/1.15  showdeleted =      0
% 0.47/1.15  showresimp =       1
% 0.47/1.15  showstatus =       2000
% 0.47/1.15  
% 0.47/1.15  prologoutput =     1
% 0.47/1.15  nrgoals =          5000000
% 0.47/1.15  totalproof =       1
% 0.47/1.15  
% 0.47/1.15  Symbols occurring in the translation:
% 0.47/1.15  
% 0.47/1.15  {}  [0, 0]      (w:1, o:2, a:1, s:1, b:0), 
% 0.47/1.15  .  [1, 2]      (w:1, o:56, a:1, s:1, b:0), 
% 0.47/1.15  !  [4, 1]      (w:0, o:31, a:1, s:1, b:0), 
% 0.47/1.15  =  [13, 2]      (w:1, o:0, a:0, s:1, b:0), 
% 0.47/1.15  ==>  [14, 2]      (w:1, o:0, a:0, s:1, b:0), 
% 0.47/1.15  subclass  [41, 2]      (w:1, o:81, a:1, s:1, b:0), 
% 0.47/1.15  member  [43, 2]      (w:1, o:82, a:1, s:1, b:0), 
% 0.47/1.15  'not_subclass_element'  [44, 2]      (w:1, o:83, a:1, s:1, b:0), 
% 0.47/1.15  'universal_class'  [45, 0]      (w:1, o:21, a:1, s:1, b:0), 
% 0.47/1.15  'unordered_pair'  [46, 2]      (w:1, o:84, a:1, s:1, b:0), 
% 0.47/1.15  singleton  [47, 1]      (w:1, o:39, a:1, s:1, b:0), 
% 0.47/1.15  'ordered_pair'  [48, 2]      (w:1, o:85, a:1, s:1, b:0), 
% 0.47/1.15  'cross_product'  [50, 2]      (w:1, o:86, a:1, s:1, b:0), 
% 0.47/1.15  first  [52, 1]      (w:1, o:40, a:1, s:1, b:0), 
% 0.47/1.15  second  [53, 1]      (w:1, o:41, a:1, s:1, b:0), 
% 0.47/1.15  'element_relation'  [54, 0]      (w:1, o:25, a:1, s:1, b:0), 
% 0.47/1.15  intersection  [55, 2]      (w:1, o:88, a:1, s:1, b:0), 
% 0.47/1.15  complement  [56, 1]      (w:1, o:42, a:1, s:1, b:0), 
% 0.47/1.15  union  [57, 2]      (w:1, o:89, a:1, s:1, b:0), 
% 0.47/1.15  'symmetric_difference'  [58, 2]      (w:1, o:90, a:1, s:1, b:0), 
% 0.47/1.15  restrict  [60, 3]      (w:1, o:93, a:1, s:1, b:0), 
% 0.47/1.15  'null_class'  [61, 0]      (w:1, o:26, a:1, s:1, b:0), 
% 0.47/1.15  'domain_of'  [62, 1]      (w:1, o:44, a:1, s:1, b:0), 
% 0.47/1.15  rotate  [63, 1]      (w:1, o:36, a:1, s:1, b:0), 
% 0.47/1.15  flip  [65, 1]      (w:1, o:45, a:1, s:1, b:0), 
% 0.47/1.15  inverse  [66, 1]      (w:1, o:46, a:1, s:1, b:0), 
% 0.47/1.15  'range_of'  [67, 1]      (w:1, o:37, a:1, s:1, b:0), 
% 0.47/1.15  domain  [68, 3]      (w:1, o:95, a:1, s:1, b:0), 
% 0.47/1.15  range  [69, 3]      (w:1, o:96, a:1, s:1, b:0), 
% 0.47/1.15  image  [70, 2]      (w:1, o:87, a:1, s:1, b:0), 
% 0.47/1.15  successor  [71, 1]      (w:1, o:47, a:1, s:1, b:0), 
% 0.47/1.15  'successor_relation'  [72, 0]      (w:1, o:6, a:1, s:1, b:0), 
% 0.47/1.15  inductive  [73, 1]      (w:1, o:48, a:1, s:1, b:0), 
% 0.47/1.15  omega  [74, 0]      (w:1, o:9, a:1, s:1, b:0), 
% 0.47/1.15  'sum_class'  [75, 1]      (w:1, o:49, a:1, s:1, b:0), 
% 0.47/1.15  'power_class'  [76, 1]      (w:1, o:52, a:1, s:1, b:0), 
% 0.47/1.15  compose  [78, 2]      (w:1, o:91, a:1, s:1, b:0), 
% 0.47/1.15  'single_valued_class'  [79, 1]      (w:1, o:53, a:1, s:1, b:0), 
% 0.47/1.15  'identity_relation'  [80, 0]      (w:1, o:27, a:1, s:1, b:0), 
% 0.47/1.15  function  [82, 1]      (w:1, o:54, a:1, s:1, b:0), 
% 0.47/1.15  regular  [83, 1]      (w:1, o:38, a:1, s:1, b:0), 
% 0.47/1.15  apply  [84, 2]      (w:1, o:92, a:1, s:1, b:0), 
% 0.47/1.15  choice  [85, 0]      (w:1, o:28, a:1, s:1, b:0), 
% 0.47/1.15  'one_to_one'  [86, 1]      (w:1, o:50, a:1, s:1, b:0), 
% 0.47/1.15  'subset_relation'  [87, 0]      (w:1, o:5, a:1, s:1, b:0), 
% 0.47/1.15  diagonalise  [88, 1]      (w:1, o:55, a:1, s:1, b:0), 
% 0.47/1.15  cantor  [89, 1]      (w:1, o:43, a:1, s:1, b:0), 
% 0.47/1.15  operation  [90, 1]      (w:1, o:51, a:1, s:1, b:0), 
% 0.47/1.15  compatible  [94, 3]      (w:1, o:94, a:1, s:1, b:0), 
% 0.47/1.15  homomorphism  [95, 3]      (w:1, o:97, a:1, s:1, b:0), 
% 0.47/1.15  'not_homomorphism1'  [96, 3]      (w:1, o:98, a:1, s:1, b:0), 
% 0.47/1.15  'not_homomorphism2'  [97, 3]      (w:1, o:99, a:1, s:1, b:0), 
% 0.47/1.15  x  [98, 0]      (w:1, o:29, a:1, s:1, b:0), 
% 0.47/1.15  y  [99, 0]      (w:1, o:30, a:1, s:1, b:0).
% 0.47/1.15  
% 0.47/1.15  
% 0.47/1.15  Starting Search:
% 0.47/1.15  
% 0.47/1.15  
% 0.47/1.15  Bliksems!, er is een bewijs:
% 0.47/1.15  % SZS status Unsatisfiable
% 0.47/1.15  % SZS output start Refutation
% 0.47/1.15  
% 0.47/1.15  clause( 1, [ member( 'not_subclass_element'( X, Y ), X ), subclass( X, Y )
% 0.47/1.15     ] )
% 0.47/1.15  .
% 0.47/1.15  clause( 2, [ ~( member( 'not_subclass_element'( X, Y ), Y ) ), subclass( X
% 0.47/1.15    , Y ) ] )
% 0.47/1.15  .
% 0.47/1.15  clause( 4, [ ~( =( X, Y ) ), subclass( X, Y ) ] )
% 0.47/1.15  .
% 0.47/1.15  clause( 5, [ ~( subclass( X, Y ) ), ~( subclass( Y, X ) ), =( X, Y ) ] )
% 0.47/1.15  .
% 0.47/1.15  clause( 94, [ subclass( X, X ) ] )
% 0.47/1.15  .
% 0.47/1.15  clause( 96, [ member( 'not_subclass_element'( x, y ), y ) ] )
% 0.47/1.15  .
% 0.47/1.15  clause( 97, [ ~( =( y, x ) ) ] )
% 0.47/1.15  .
% 0.47/1.15  clause( 98, [ ~( member( 'not_subclass_element'( y, x ), y ) ) ] )
% 0.47/1.15  .
% 0.47/1.15  clause( 120, [ subclass( y, x ) ] )
% 0.47/1.15  .
% 0.47/1.15  clause( 125, [ subclass( x, y ) ] )
% 0.47/1.15  .
% 0.47/1.15  clause( 135, [ =( y, x ) ] )
% 0.47/1.15  .
% 0.47/1.15  clause( 161, [ ~( =( X, x ) ), ~( subclass( x, X ) ) ] )
% 0.47/1.15  .
% 0.47/1.15  clause( 165, [] )
% 0.47/1.15  .
% 0.47/1.15  
% 0.47/1.15  
% 0.47/1.15  % SZS output end Refutation
% 0.47/1.15  found a proof!
% 0.47/1.15  
% 0.47/1.15  % ABCDEFGHIJKLMNOPQRSTUVWXYZ
% 0.47/1.15  
% 0.47/1.15  initialclauses(
% 0.47/1.15  [ clause( 167, [ ~( subclass( X, Y ) ), ~( member( Z, X ) ), member( Z, Y )
% 0.47/1.15     ] )
% 0.47/1.15  , clause( 168, [ member( 'not_subclass_element'( X, Y ), X ), subclass( X, 
% 0.47/1.15    Y ) ] )
% 0.47/1.15  , clause( 169, [ ~( member( 'not_subclass_element'( X, Y ), Y ) ), subclass( 
% 0.47/1.15    X, Y ) ] )
% 0.47/1.15  , clause( 170, [ subclass( X, 'universal_class' ) ] )
% 0.47/1.15  , clause( 171, [ ~( =( X, Y ) ), subclass( X, Y ) ] )
% 0.47/1.15  , clause( 172, [ ~( =( X, Y ) ), subclass( Y, X ) ] )
% 0.47/1.15  , clause( 173, [ ~( subclass( X, Y ) ), ~( subclass( Y, X ) ), =( X, Y ) ]
% 0.47/1.15     )
% 0.47/1.15  , clause( 174, [ ~( member( X, 'unordered_pair'( Y, Z ) ) ), =( X, Y ), =( 
% 0.47/1.15    X, Z ) ] )
% 0.47/1.15  , clause( 175, [ ~( member( X, 'universal_class' ) ), member( X, 
% 0.47/1.15    'unordered_pair'( X, Y ) ) ] )
% 0.47/1.15  , clause( 176, [ ~( member( X, 'universal_class' ) ), member( X, 
% 0.47/1.15    'unordered_pair'( Y, X ) ) ] )
% 0.47/1.15  , clause( 177, [ member( 'unordered_pair'( X, Y ), 'universal_class' ) ] )
% 0.47/1.15  , clause( 178, [ =( 'unordered_pair'( X, X ), singleton( X ) ) ] )
% 0.47/1.15  , clause( 179, [ =( 'unordered_pair'( singleton( X ), 'unordered_pair'( X, 
% 0.47/1.15    singleton( Y ) ) ), 'ordered_pair'( X, Y ) ) ] )
% 0.47/1.15  , clause( 180, [ ~( member( 'ordered_pair'( X, Y ), 'cross_product'( Z, T )
% 0.47/1.15     ) ), member( X, Z ) ] )
% 0.47/1.15  , clause( 181, [ ~( member( 'ordered_pair'( X, Y ), 'cross_product'( Z, T )
% 0.47/1.15     ) ), member( Y, T ) ] )
% 0.47/1.15  , clause( 182, [ ~( member( X, Y ) ), ~( member( Z, T ) ), member( 
% 0.47/1.15    'ordered_pair'( X, Z ), 'cross_product'( Y, T ) ) ] )
% 0.47/1.15  , clause( 183, [ ~( member( X, 'cross_product'( Y, Z ) ) ), =( 
% 0.47/1.15    'ordered_pair'( first( X ), second( X ) ), X ) ] )
% 0.47/1.15  , clause( 184, [ subclass( 'element_relation', 'cross_product'( 
% 0.47/1.15    'universal_class', 'universal_class' ) ) ] )
% 0.47/1.15  , clause( 185, [ ~( member( 'ordered_pair'( X, Y ), 'element_relation' ) )
% 0.47/1.15    , member( X, Y ) ] )
% 0.47/1.15  , clause( 186, [ ~( member( 'ordered_pair'( X, Y ), 'cross_product'( 
% 0.47/1.15    'universal_class', 'universal_class' ) ) ), ~( member( X, Y ) ), member( 
% 0.47/1.15    'ordered_pair'( X, Y ), 'element_relation' ) ] )
% 0.47/1.15  , clause( 187, [ ~( member( X, intersection( Y, Z ) ) ), member( X, Y ) ]
% 0.47/1.15     )
% 0.47/1.15  , clause( 188, [ ~( member( X, intersection( Y, Z ) ) ), member( X, Z ) ]
% 0.47/1.15     )
% 0.47/1.15  , clause( 189, [ ~( member( X, Y ) ), ~( member( X, Z ) ), member( X, 
% 0.47/1.15    intersection( Y, Z ) ) ] )
% 0.47/1.15  , clause( 190, [ ~( member( X, complement( Y ) ) ), ~( member( X, Y ) ) ]
% 0.47/1.15     )
% 0.47/1.15  , clause( 191, [ ~( member( X, 'universal_class' ) ), member( X, complement( 
% 0.47/1.15    Y ) ), member( X, Y ) ] )
% 0.47/1.15  , clause( 192, [ =( complement( intersection( complement( X ), complement( 
% 0.47/1.15    Y ) ) ), union( X, Y ) ) ] )
% 0.47/1.15  , clause( 193, [ =( intersection( complement( intersection( X, Y ) ), 
% 0.47/1.15    complement( intersection( complement( X ), complement( Y ) ) ) ), 
% 0.47/1.15    'symmetric_difference'( X, Y ) ) ] )
% 0.47/1.15  , clause( 194, [ =( intersection( X, 'cross_product'( Y, Z ) ), restrict( X
% 0.47/1.15    , Y, Z ) ) ] )
% 0.47/1.15  , clause( 195, [ =( intersection( 'cross_product'( X, Y ), Z ), restrict( Z
% 0.47/1.15    , X, Y ) ) ] )
% 0.47/1.15  , clause( 196, [ ~( =( restrict( X, singleton( Y ), 'universal_class' ), 
% 0.47/1.15    'null_class' ) ), ~( member( Y, 'domain_of'( X ) ) ) ] )
% 0.47/1.15  , clause( 197, [ ~( member( X, 'universal_class' ) ), =( restrict( Y, 
% 0.47/1.15    singleton( X ), 'universal_class' ), 'null_class' ), member( X, 
% 0.47/1.15    'domain_of'( Y ) ) ] )
% 0.47/1.15  , clause( 198, [ subclass( rotate( X ), 'cross_product'( 'cross_product'( 
% 0.47/1.15    'universal_class', 'universal_class' ), 'universal_class' ) ) ] )
% 0.47/1.15  , clause( 199, [ ~( member( 'ordered_pair'( 'ordered_pair'( X, Y ), Z ), 
% 0.47/1.15    rotate( T ) ) ), member( 'ordered_pair'( 'ordered_pair'( Y, Z ), X ), T )
% 0.47/1.15     ] )
% 0.47/1.15  , clause( 200, [ ~( member( 'ordered_pair'( 'ordered_pair'( X, Y ), Z ), T
% 0.47/1.15     ) ), ~( member( 'ordered_pair'( 'ordered_pair'( Z, X ), Y ), 
% 0.47/1.15    'cross_product'( 'cross_product'( 'universal_class', 'universal_class' )
% 0.47/1.15    , 'universal_class' ) ) ), member( 'ordered_pair'( 'ordered_pair'( Z, X )
% 0.47/1.15    , Y ), rotate( T ) ) ] )
% 0.47/1.15  , clause( 201, [ subclass( flip( X ), 'cross_product'( 'cross_product'( 
% 0.47/1.15    'universal_class', 'universal_class' ), 'universal_class' ) ) ] )
% 0.47/1.15  , clause( 202, [ ~( member( 'ordered_pair'( 'ordered_pair'( X, Y ), Z ), 
% 0.47/1.15    flip( T ) ) ), member( 'ordered_pair'( 'ordered_pair'( Y, X ), Z ), T ) ]
% 0.47/1.15     )
% 0.47/1.15  , clause( 203, [ ~( member( 'ordered_pair'( 'ordered_pair'( X, Y ), Z ), T
% 0.47/1.15     ) ), ~( member( 'ordered_pair'( 'ordered_pair'( Y, X ), Z ), 
% 0.47/1.15    'cross_product'( 'cross_product'( 'universal_class', 'universal_class' )
% 0.47/1.15    , 'universal_class' ) ) ), member( 'ordered_pair'( 'ordered_pair'( Y, X )
% 0.47/1.15    , Z ), flip( T ) ) ] )
% 0.47/1.15  , clause( 204, [ =( 'domain_of'( flip( 'cross_product'( X, 
% 0.47/1.15    'universal_class' ) ) ), inverse( X ) ) ] )
% 0.47/1.15  , clause( 205, [ =( 'domain_of'( inverse( X ) ), 'range_of'( X ) ) ] )
% 0.47/1.15  , clause( 206, [ =( first( 'not_subclass_element'( restrict( X, Y, 
% 0.47/1.15    singleton( Z ) ), 'null_class' ) ), domain( X, Y, Z ) ) ] )
% 0.47/1.15  , clause( 207, [ =( second( 'not_subclass_element'( restrict( X, singleton( 
% 0.47/1.15    Y ), Z ), 'null_class' ) ), range( X, Y, Z ) ) ] )
% 0.47/1.15  , clause( 208, [ =( 'range_of'( restrict( X, Y, 'universal_class' ) ), 
% 0.47/1.15    image( X, Y ) ) ] )
% 0.47/1.15  , clause( 209, [ =( union( X, singleton( X ) ), successor( X ) ) ] )
% 0.47/1.15  , clause( 210, [ subclass( 'successor_relation', 'cross_product'( 
% 0.47/1.15    'universal_class', 'universal_class' ) ) ] )
% 0.47/1.15  , clause( 211, [ ~( member( 'ordered_pair'( X, Y ), 'successor_relation' )
% 0.47/1.15     ), =( successor( X ), Y ) ] )
% 0.47/1.15  , clause( 212, [ ~( =( successor( X ), Y ) ), ~( member( 'ordered_pair'( X
% 0.47/1.15    , Y ), 'cross_product'( 'universal_class', 'universal_class' ) ) ), 
% 0.47/1.15    member( 'ordered_pair'( X, Y ), 'successor_relation' ) ] )
% 0.47/1.15  , clause( 213, [ ~( inductive( X ) ), member( 'null_class', X ) ] )
% 0.47/1.15  , clause( 214, [ ~( inductive( X ) ), subclass( image( 'successor_relation'
% 0.47/1.15    , X ), X ) ] )
% 0.47/1.15  , clause( 215, [ ~( member( 'null_class', X ) ), ~( subclass( image( 
% 0.47/1.15    'successor_relation', X ), X ) ), inductive( X ) ] )
% 0.47/1.15  , clause( 216, [ inductive( omega ) ] )
% 0.47/1.15  , clause( 217, [ ~( inductive( X ) ), subclass( omega, X ) ] )
% 0.47/1.15  , clause( 218, [ member( omega, 'universal_class' ) ] )
% 0.47/1.15  , clause( 219, [ =( 'domain_of'( restrict( 'element_relation', 
% 0.47/1.15    'universal_class', X ) ), 'sum_class'( X ) ) ] )
% 0.47/1.15  , clause( 220, [ ~( member( X, 'universal_class' ) ), member( 'sum_class'( 
% 0.47/1.15    X ), 'universal_class' ) ] )
% 0.47/1.15  , clause( 221, [ =( complement( image( 'element_relation', complement( X )
% 0.47/1.15     ) ), 'power_class'( X ) ) ] )
% 0.47/1.15  , clause( 222, [ ~( member( X, 'universal_class' ) ), member( 'power_class'( 
% 0.47/1.15    X ), 'universal_class' ) ] )
% 0.47/1.15  , clause( 223, [ subclass( compose( X, Y ), 'cross_product'( 
% 0.47/1.15    'universal_class', 'universal_class' ) ) ] )
% 0.47/1.15  , clause( 224, [ ~( member( 'ordered_pair'( X, Y ), compose( Z, T ) ) ), 
% 0.47/1.15    member( Y, image( Z, image( T, singleton( X ) ) ) ) ] )
% 0.47/1.15  , clause( 225, [ ~( member( X, image( Y, image( Z, singleton( T ) ) ) ) ), 
% 0.47/1.15    ~( member( 'ordered_pair'( T, X ), 'cross_product'( 'universal_class', 
% 0.47/1.15    'universal_class' ) ) ), member( 'ordered_pair'( T, X ), compose( Y, Z )
% 0.47/1.15     ) ] )
% 0.47/1.15  , clause( 226, [ ~( 'single_valued_class'( X ) ), subclass( compose( X, 
% 0.47/1.15    inverse( X ) ), 'identity_relation' ) ] )
% 0.47/1.15  , clause( 227, [ ~( subclass( compose( X, inverse( X ) ), 
% 0.47/1.15    'identity_relation' ) ), 'single_valued_class'( X ) ] )
% 0.47/1.15  , clause( 228, [ ~( function( X ) ), subclass( X, 'cross_product'( 
% 0.47/1.15    'universal_class', 'universal_class' ) ) ] )
% 0.47/1.15  , clause( 229, [ ~( function( X ) ), subclass( compose( X, inverse( X ) ), 
% 0.47/1.15    'identity_relation' ) ] )
% 0.47/1.15  , clause( 230, [ ~( subclass( X, 'cross_product'( 'universal_class', 
% 0.47/1.15    'universal_class' ) ) ), ~( subclass( compose( X, inverse( X ) ), 
% 0.47/1.15    'identity_relation' ) ), function( X ) ] )
% 0.47/1.15  , clause( 231, [ ~( function( X ) ), ~( member( Y, 'universal_class' ) ), 
% 0.47/1.15    member( image( X, Y ), 'universal_class' ) ] )
% 0.47/1.15  , clause( 232, [ =( X, 'null_class' ), member( regular( X ), X ) ] )
% 0.47/1.15  , clause( 233, [ =( X, 'null_class' ), =( intersection( X, regular( X ) ), 
% 0.47/1.15    'null_class' ) ] )
% 0.47/1.15  , clause( 234, [ =( 'sum_class'( image( X, singleton( Y ) ) ), apply( X, Y
% 0.47/1.15     ) ) ] )
% 0.47/1.15  , clause( 235, [ function( choice ) ] )
% 0.47/1.15  , clause( 236, [ ~( member( X, 'universal_class' ) ), =( X, 'null_class' )
% 0.47/1.15    , member( apply( choice, X ), X ) ] )
% 0.47/1.15  , clause( 237, [ ~( 'one_to_one'( X ) ), function( X ) ] )
% 0.47/1.15  , clause( 238, [ ~( 'one_to_one'( X ) ), function( inverse( X ) ) ] )
% 0.47/1.15  , clause( 239, [ ~( function( inverse( X ) ) ), ~( function( X ) ), 
% 0.47/1.15    'one_to_one'( X ) ] )
% 0.47/1.15  , clause( 240, [ =( intersection( 'cross_product'( 'universal_class', 
% 0.47/1.15    'universal_class' ), intersection( 'cross_product'( 'universal_class', 
% 0.47/1.15    'universal_class' ), complement( compose( complement( 'element_relation'
% 0.47/1.15     ), inverse( 'element_relation' ) ) ) ) ), 'subset_relation' ) ] )
% 0.47/1.15  , clause( 241, [ =( intersection( inverse( 'subset_relation' ), 
% 0.47/1.15    'subset_relation' ), 'identity_relation' ) ] )
% 0.47/1.15  , clause( 242, [ =( complement( 'domain_of'( intersection( X, 
% 0.47/1.15    'identity_relation' ) ) ), diagonalise( X ) ) ] )
% 0.47/1.15  , clause( 243, [ =( intersection( 'domain_of'( X ), diagonalise( compose( 
% 0.47/1.15    inverse( 'element_relation' ), X ) ) ), cantor( X ) ) ] )
% 0.47/1.15  , clause( 244, [ ~( operation( X ) ), function( X ) ] )
% 0.47/1.15  , clause( 245, [ ~( operation( X ) ), =( 'cross_product'( 'domain_of'( 
% 0.47/1.15    'domain_of'( X ) ), 'domain_of'( 'domain_of'( X ) ) ), 'domain_of'( X ) )
% 0.47/1.15     ] )
% 0.47/1.15  , clause( 246, [ ~( operation( X ) ), subclass( 'range_of'( X ), 
% 0.47/1.15    'domain_of'( 'domain_of'( X ) ) ) ] )
% 0.47/1.15  , clause( 247, [ ~( function( X ) ), ~( =( 'cross_product'( 'domain_of'( 
% 0.47/1.15    'domain_of'( X ) ), 'domain_of'( 'domain_of'( X ) ) ), 'domain_of'( X ) )
% 0.47/1.15     ), ~( subclass( 'range_of'( X ), 'domain_of'( 'domain_of'( X ) ) ) ), 
% 0.47/1.15    operation( X ) ] )
% 0.47/1.15  , clause( 248, [ ~( compatible( X, Y, Z ) ), function( X ) ] )
% 0.47/1.15  , clause( 249, [ ~( compatible( X, Y, Z ) ), =( 'domain_of'( 'domain_of'( Y
% 0.47/1.15     ) ), 'domain_of'( X ) ) ] )
% 0.47/1.15  , clause( 250, [ ~( compatible( X, Y, Z ) ), subclass( 'range_of'( X ), 
% 0.47/1.15    'domain_of'( 'domain_of'( Z ) ) ) ] )
% 0.47/1.15  , clause( 251, [ ~( function( X ) ), ~( =( 'domain_of'( 'domain_of'( Y ) )
% 0.47/1.15    , 'domain_of'( X ) ) ), ~( subclass( 'range_of'( X ), 'domain_of'( 
% 0.47/1.15    'domain_of'( Z ) ) ) ), compatible( X, Y, Z ) ] )
% 0.47/1.15  , clause( 252, [ ~( homomorphism( X, Y, Z ) ), operation( Y ) ] )
% 0.47/1.15  , clause( 253, [ ~( homomorphism( X, Y, Z ) ), operation( Z ) ] )
% 0.47/1.15  , clause( 254, [ ~( homomorphism( X, Y, Z ) ), compatible( X, Y, Z ) ] )
% 0.47/1.15  , clause( 255, [ ~( homomorphism( X, Y, Z ) ), ~( member( 'ordered_pair'( T
% 0.47/1.15    , U ), 'domain_of'( Y ) ) ), =( apply( Z, 'ordered_pair'( apply( X, T ), 
% 0.47/1.15    apply( X, U ) ) ), apply( X, apply( Y, 'ordered_pair'( T, U ) ) ) ) ] )
% 0.47/1.15  , clause( 256, [ ~( operation( X ) ), ~( operation( Y ) ), ~( compatible( Z
% 0.47/1.15    , X, Y ) ), member( 'ordered_pair'( 'not_homomorphism1'( Z, X, Y ), 
% 0.47/1.15    'not_homomorphism2'( Z, X, Y ) ), 'domain_of'( X ) ), homomorphism( Z, X
% 0.47/1.15    , Y ) ] )
% 0.47/1.15  , clause( 257, [ ~( operation( X ) ), ~( operation( Y ) ), ~( compatible( Z
% 0.47/1.15    , X, Y ) ), ~( =( apply( Y, 'ordered_pair'( apply( Z, 'not_homomorphism1'( 
% 0.47/1.15    Z, X, Y ) ), apply( Z, 'not_homomorphism2'( Z, X, Y ) ) ) ), apply( Z, 
% 0.47/1.15    apply( X, 'ordered_pair'( 'not_homomorphism1'( Z, X, Y ), 
% 0.47/1.15    'not_homomorphism2'( Z, X, Y ) ) ) ) ) ), homomorphism( Z, X, Y ) ] )
% 0.47/1.15  , clause( 258, [ ~( member( 'ordered_pair'( X, Y ), 'cross_product'( Z, T )
% 0.47/1.15     ) ), member( X, 'unordered_pair'( X, Y ) ) ] )
% 0.47/1.15  , clause( 259, [ ~( member( 'ordered_pair'( X, Y ), 'cross_product'( Z, T )
% 0.47/1.15     ) ), member( Y, 'unordered_pair'( X, Y ) ) ] )
% 0.47/1.15  , clause( 260, [ ~( member( 'ordered_pair'( X, Y ), 'cross_product'( Z, T )
% 0.47/1.15     ) ), member( X, 'universal_class' ) ] )
% 0.47/1.15  , clause( 261, [ ~( member( 'ordered_pair'( X, Y ), 'cross_product'( Z, T )
% 0.47/1.15     ) ), member( Y, 'universal_class' ) ] )
% 0.47/1.15  , clause( 262, [ subclass( X, X ) ] )
% 0.47/1.15  , clause( 263, [ ~( subclass( X, Y ) ), ~( subclass( Y, Z ) ), subclass( X
% 0.47/1.15    , Z ) ] )
% 0.47/1.15  , clause( 264, [ member( 'not_subclass_element'( x, y ), y ) ] )
% 0.47/1.15  , clause( 265, [ ~( =( x, y ) ) ] )
% 0.47/1.15  , clause( 266, [ ~( member( 'not_subclass_element'( y, x ), y ) ) ] )
% 0.47/1.15  ] ).
% 0.47/1.15  
% 0.47/1.15  
% 0.47/1.15  
% 0.47/1.15  subsumption(
% 0.47/1.15  clause( 1, [ member( 'not_subclass_element'( X, Y ), X ), subclass( X, Y )
% 0.47/1.15     ] )
% 0.47/1.15  , clause( 168, [ member( 'not_subclass_element'( X, Y ), X ), subclass( X, 
% 0.47/1.15    Y ) ] )
% 0.47/1.15  , substitution( 0, [ :=( X, X ), :=( Y, Y )] ), permutation( 0, [ ==>( 0, 0
% 0.47/1.15     ), ==>( 1, 1 )] ) ).
% 0.47/1.15  
% 0.47/1.15  
% 0.47/1.15  subsumption(
% 0.47/1.15  clause( 2, [ ~( member( 'not_subclass_element'( X, Y ), Y ) ), subclass( X
% 0.47/1.15    , Y ) ] )
% 0.47/1.15  , clause( 169, [ ~( member( 'not_subclass_element'( X, Y ), Y ) ), subclass( 
% 0.47/1.15    X, Y ) ] )
% 0.47/1.15  , substitution( 0, [ :=( X, X ), :=( Y, Y )] ), permutation( 0, [ ==>( 0, 0
% 0.47/1.15     ), ==>( 1, 1 )] ) ).
% 0.47/1.15  
% 0.47/1.15  
% 0.47/1.15  subsumption(
% 0.47/1.15  clause( 4, [ ~( =( X, Y ) ), subclass( X, Y ) ] )
% 0.47/1.15  , clause( 171, [ ~( =( X, Y ) ), subclass( X, Y ) ] )
% 0.47/1.15  , substitution( 0, [ :=( X, X ), :=( Y, Y )] ), permutation( 0, [ ==>( 0, 0
% 0.47/1.15     ), ==>( 1, 1 )] ) ).
% 0.47/1.15  
% 0.47/1.15  
% 0.47/1.15  subsumption(
% 0.47/1.15  clause( 5, [ ~( subclass( X, Y ) ), ~( subclass( Y, X ) ), =( X, Y ) ] )
% 0.47/1.15  , clause( 173, [ ~( subclass( X, Y ) ), ~( subclass( Y, X ) ), =( X, Y ) ]
% 0.47/1.15     )
% 0.47/1.15  , substitution( 0, [ :=( X, X ), :=( Y, Y )] ), permutation( 0, [ ==>( 0, 0
% 0.47/1.15     ), ==>( 1, 1 ), ==>( 2, 2 )] ) ).
% 0.47/1.15  
% 0.47/1.15  
% 0.47/1.15  subsumption(
% 0.47/1.15  clause( 94, [ subclass( X, X ) ] )
% 0.47/1.15  , clause( 262, [ subclass( X, X ) ] )
% 0.47/1.15  , substitution( 0, [ :=( X, X )] ), permutation( 0, [ ==>( 0, 0 )] ) ).
% 0.47/1.15  
% 0.47/1.15  
% 0.47/1.15  subsumption(
% 0.47/1.15  clause( 96, [ member( 'not_subclass_element'( x, y ), y ) ] )
% 0.47/1.15  , clause( 264, [ member( 'not_subclass_element'( x, y ), y ) ] )
% 0.47/1.15  , substitution( 0, [] ), permutation( 0, [ ==>( 0, 0 )] ) ).
% 0.47/1.15  
% 0.47/1.15  
% 0.47/1.15  eqswap(
% 0.47/1.15  clause( 423, [ ~( =( y, x ) ) ] )
% 0.47/1.15  , clause( 265, [ ~( =( x, y ) ) ] )
% 0.47/1.15  , 0, substitution( 0, [] )).
% 0.47/1.15  
% 0.47/1.15  
% 0.47/1.15  subsumption(
% 0.47/1.15  clause( 97, [ ~( =( y, x ) ) ] )
% 0.47/1.15  , clauseCputime limit exceeded (core dumped)
%------------------------------------------------------------------------------