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Bliksem---1.12.UNS-Ref.s

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%------------------------------------------------------------------------------
% File     : Bliksem---1.12
% Problem  : SET079-7 : TPTP v8.1.0. Bugfixed v2.1.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : bliksem %s

% Computer : n008.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 22:46:42 EDT 2022

% Result   : Unsatisfiable 0.72s 1.13s
% Output   : Refutation 0.72s
% Verified : 
% SZS Type : -

% Comments : 
%------------------------------------------------------------------------------
%----WARNING: Could not form TPTP format derivation
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.11/0.13  % Problem  : SET079-7 : TPTP v8.1.0. Bugfixed v2.1.0.
% 0.11/0.13  % Command  : bliksem %s
% 0.13/0.35  % Computer : n008.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 : Sat Jul  9 17:26:53 EDT 2022
% 0.13/0.35  % CPUTime  : 
% 0.72/1.12  *** allocated 10000 integers for termspace/termends
% 0.72/1.12  *** allocated 10000 integers for clauses
% 0.72/1.12  *** allocated 10000 integers for justifications
% 0.72/1.12  Bliksem 1.12
% 0.72/1.12  
% 0.72/1.12  
% 0.72/1.12  Automatic Strategy Selection
% 0.72/1.12  
% 0.72/1.12  Clauses:
% 0.72/1.12  [
% 0.72/1.12     [ ~( subclass( X, Y ) ), ~( member( Z, X ) ), member( Z, Y ) ],
% 0.72/1.12     [ member( 'not_subclass_element'( X, Y ), X ), subclass( X, Y ) ],
% 0.72/1.12     [ ~( member( 'not_subclass_element'( X, Y ), Y ) ), subclass( X, Y ) ]
% 0.72/1.12    ,
% 0.72/1.12     [ subclass( X, 'universal_class' ) ],
% 0.72/1.12     [ ~( =( X, Y ) ), subclass( X, Y ) ],
% 0.72/1.12     [ ~( =( X, Y ) ), subclass( Y, X ) ],
% 0.72/1.12     [ ~( subclass( X, Y ) ), ~( subclass( Y, X ) ), =( X, Y ) ],
% 0.72/1.12     [ ~( member( X, 'unordered_pair'( Y, Z ) ) ), =( X, Y ), =( X, Z ) ]
% 0.72/1.12    ,
% 0.72/1.12     [ ~( member( X, 'universal_class' ) ), member( X, 'unordered_pair'( X, Y
% 0.72/1.12     ) ) ],
% 0.72/1.12     [ ~( member( X, 'universal_class' ) ), member( X, 'unordered_pair'( Y, X
% 0.72/1.12     ) ) ],
% 0.72/1.12     [ member( 'unordered_pair'( X, Y ), 'universal_class' ) ],
% 0.72/1.12     [ =( 'unordered_pair'( X, X ), singleton( X ) ) ],
% 0.72/1.12     [ =( 'unordered_pair'( singleton( X ), 'unordered_pair'( X, singleton( Y
% 0.72/1.12     ) ) ), 'ordered_pair'( X, Y ) ) ],
% 0.72/1.12     [ ~( member( 'ordered_pair'( X, Y ), 'cross_product'( Z, T ) ) ), member( 
% 0.72/1.12    X, Z ) ],
% 0.72/1.12     [ ~( member( 'ordered_pair'( X, Y ), 'cross_product'( Z, T ) ) ), member( 
% 0.72/1.12    Y, T ) ],
% 0.72/1.12     [ ~( member( X, Y ) ), ~( member( Z, T ) ), member( 'ordered_pair'( X, Z
% 0.72/1.12     ), 'cross_product'( Y, T ) ) ],
% 0.72/1.12     [ ~( member( X, 'cross_product'( Y, Z ) ) ), =( 'ordered_pair'( first( X
% 0.72/1.12     ), second( X ) ), X ) ],
% 0.72/1.12     [ subclass( 'element_relation', 'cross_product'( 'universal_class', 
% 0.72/1.12    'universal_class' ) ) ],
% 0.72/1.12     [ ~( member( 'ordered_pair'( X, Y ), 'element_relation' ) ), member( X, 
% 0.72/1.12    Y ) ],
% 0.72/1.12     [ ~( member( 'ordered_pair'( X, Y ), 'cross_product'( 'universal_class'
% 0.72/1.12    , 'universal_class' ) ) ), ~( member( X, Y ) ), member( 'ordered_pair'( X
% 0.72/1.12    , Y ), 'element_relation' ) ],
% 0.72/1.12     [ ~( member( X, intersection( Y, Z ) ) ), member( X, Y ) ],
% 0.72/1.12     [ ~( member( X, intersection( Y, Z ) ) ), member( X, Z ) ],
% 0.72/1.12     [ ~( member( X, Y ) ), ~( member( X, Z ) ), member( X, intersection( Y, 
% 0.72/1.12    Z ) ) ],
% 0.72/1.12     [ ~( member( X, complement( Y ) ) ), ~( member( X, Y ) ) ],
% 0.72/1.12     [ ~( member( X, 'universal_class' ) ), member( X, complement( Y ) ), 
% 0.72/1.12    member( X, Y ) ],
% 0.72/1.12     [ =( complement( intersection( complement( X ), complement( Y ) ) ), 
% 0.72/1.12    union( X, Y ) ) ],
% 0.72/1.12     [ =( intersection( complement( intersection( X, Y ) ), complement( 
% 0.72/1.12    intersection( complement( X ), complement( Y ) ) ) ), 
% 0.72/1.12    'symmetric_difference'( X, Y ) ) ],
% 0.72/1.12     [ =( intersection( X, 'cross_product'( Y, Z ) ), restrict( X, Y, Z ) ) ]
% 0.72/1.12    ,
% 0.72/1.12     [ =( intersection( 'cross_product'( X, Y ), Z ), restrict( Z, X, Y ) ) ]
% 0.72/1.12    ,
% 0.72/1.12     [ ~( =( restrict( X, singleton( Y ), 'universal_class' ), 'null_class' )
% 0.72/1.12     ), ~( member( Y, 'domain_of'( X ) ) ) ],
% 0.72/1.12     [ ~( member( X, 'universal_class' ) ), =( restrict( Y, singleton( X ), 
% 0.72/1.12    'universal_class' ), 'null_class' ), member( X, 'domain_of'( Y ) ) ],
% 0.72/1.12     [ subclass( rotate( X ), 'cross_product'( 'cross_product'( 
% 0.72/1.12    'universal_class', 'universal_class' ), 'universal_class' ) ) ],
% 0.72/1.12     [ ~( member( 'ordered_pair'( 'ordered_pair'( X, Y ), Z ), rotate( T ) )
% 0.72/1.12     ), member( 'ordered_pair'( 'ordered_pair'( Y, Z ), X ), T ) ],
% 0.72/1.12     [ ~( member( 'ordered_pair'( 'ordered_pair'( X, Y ), Z ), T ) ), ~( 
% 0.72/1.12    member( 'ordered_pair'( 'ordered_pair'( Z, X ), Y ), 'cross_product'( 
% 0.72/1.12    'cross_product'( 'universal_class', 'universal_class' ), 
% 0.72/1.12    'universal_class' ) ) ), member( 'ordered_pair'( 'ordered_pair'( Z, X ), 
% 0.72/1.12    Y ), rotate( T ) ) ],
% 0.72/1.12     [ subclass( flip( X ), 'cross_product'( 'cross_product'( 
% 0.72/1.12    'universal_class', 'universal_class' ), 'universal_class' ) ) ],
% 0.72/1.12     [ ~( member( 'ordered_pair'( 'ordered_pair'( X, Y ), Z ), flip( T ) ) )
% 0.72/1.12    , member( 'ordered_pair'( 'ordered_pair'( Y, X ), Z ), T ) ],
% 0.72/1.12     [ ~( member( 'ordered_pair'( 'ordered_pair'( X, Y ), Z ), T ) ), ~( 
% 0.72/1.12    member( 'ordered_pair'( 'ordered_pair'( Y, X ), Z ), 'cross_product'( 
% 0.72/1.12    'cross_product'( 'universal_class', 'universal_class' ), 
% 0.72/1.12    'universal_class' ) ) ), member( 'ordered_pair'( 'ordered_pair'( Y, X ), 
% 0.72/1.12    Z ), flip( T ) ) ],
% 0.72/1.12     [ =( 'domain_of'( flip( 'cross_product'( X, 'universal_class' ) ) ), 
% 0.72/1.12    inverse( X ) ) ],
% 0.72/1.12     [ =( 'domain_of'( inverse( X ) ), 'range_of'( X ) ) ],
% 0.72/1.12     [ =( first( 'not_subclass_element'( restrict( X, Y, singleton( Z ) ), 
% 0.72/1.12    'null_class' ) ), domain( X, Y, Z ) ) ],
% 0.72/1.12     [ =( second( 'not_subclass_element'( restrict( X, singleton( Y ), Z ), 
% 0.72/1.12    'null_class' ) ), range( X, Y, Z ) ) ],
% 0.72/1.12     [ =( 'range_of'( restrict( X, Y, 'universal_class' ) ), image( X, Y ) )
% 0.72/1.12     ],
% 0.72/1.12     [ =( union( X, singleton( X ) ), successor( X ) ) ],
% 0.72/1.12     [ subclass( 'successor_relation', 'cross_product'( 'universal_class', 
% 0.72/1.12    'universal_class' ) ) ],
% 0.72/1.12     [ ~( member( 'ordered_pair'( X, Y ), 'successor_relation' ) ), =( 
% 0.72/1.12    successor( X ), Y ) ],
% 0.72/1.12     [ ~( =( successor( X ), Y ) ), ~( member( 'ordered_pair'( X, Y ), 
% 0.72/1.12    'cross_product'( 'universal_class', 'universal_class' ) ) ), member( 
% 0.72/1.12    'ordered_pair'( X, Y ), 'successor_relation' ) ],
% 0.72/1.12     [ ~( inductive( X ) ), member( 'null_class', X ) ],
% 0.72/1.12     [ ~( inductive( X ) ), subclass( image( 'successor_relation', X ), X ) ]
% 0.72/1.12    ,
% 0.72/1.12     [ ~( member( 'null_class', X ) ), ~( subclass( image( 
% 0.72/1.12    'successor_relation', X ), X ) ), inductive( X ) ],
% 0.72/1.12     [ inductive( omega ) ],
% 0.72/1.12     [ ~( inductive( X ) ), subclass( omega, X ) ],
% 0.72/1.12     [ member( omega, 'universal_class' ) ],
% 0.72/1.12     [ =( 'domain_of'( restrict( 'element_relation', 'universal_class', X ) )
% 0.72/1.12    , 'sum_class'( X ) ) ],
% 0.72/1.12     [ ~( member( X, 'universal_class' ) ), member( 'sum_class'( X ), 
% 0.72/1.12    'universal_class' ) ],
% 0.72/1.12     [ =( complement( image( 'element_relation', complement( X ) ) ), 
% 0.72/1.12    'power_class'( X ) ) ],
% 0.72/1.12     [ ~( member( X, 'universal_class' ) ), member( 'power_class'( X ), 
% 0.72/1.12    'universal_class' ) ],
% 0.72/1.12     [ subclass( compose( X, Y ), 'cross_product'( 'universal_class', 
% 0.72/1.12    'universal_class' ) ) ],
% 0.72/1.12     [ ~( member( 'ordered_pair'( X, Y ), compose( Z, T ) ) ), member( Y, 
% 0.72/1.12    image( Z, image( T, singleton( X ) ) ) ) ],
% 0.72/1.12     [ ~( member( X, image( Y, image( Z, singleton( T ) ) ) ) ), ~( member( 
% 0.72/1.12    'ordered_pair'( T, X ), 'cross_product'( 'universal_class', 
% 0.72/1.12    'universal_class' ) ) ), member( 'ordered_pair'( T, X ), compose( Y, Z )
% 0.72/1.12     ) ],
% 0.72/1.12     [ ~( 'single_valued_class'( X ) ), subclass( compose( X, inverse( X ) )
% 0.72/1.12    , 'identity_relation' ) ],
% 0.72/1.12     [ ~( subclass( compose( X, inverse( X ) ), 'identity_relation' ) ), 
% 0.72/1.12    'single_valued_class'( X ) ],
% 0.72/1.12     [ ~( function( X ) ), subclass( X, 'cross_product'( 'universal_class', 
% 0.72/1.12    'universal_class' ) ) ],
% 0.72/1.12     [ ~( function( X ) ), subclass( compose( X, inverse( X ) ), 
% 0.72/1.12    'identity_relation' ) ],
% 0.72/1.12     [ ~( subclass( X, 'cross_product'( 'universal_class', 'universal_class'
% 0.72/1.12     ) ) ), ~( subclass( compose( X, inverse( X ) ), 'identity_relation' ) )
% 0.72/1.12    , function( X ) ],
% 0.72/1.12     [ ~( function( X ) ), ~( member( Y, 'universal_class' ) ), member( image( 
% 0.72/1.12    X, Y ), 'universal_class' ) ],
% 0.72/1.12     [ =( X, 'null_class' ), member( regular( X ), X ) ],
% 0.72/1.12     [ =( X, 'null_class' ), =( intersection( X, regular( X ) ), 'null_class'
% 0.72/1.12     ) ],
% 0.72/1.12     [ =( 'sum_class'( image( X, singleton( Y ) ) ), apply( X, Y ) ) ],
% 0.72/1.12     [ function( choice ) ],
% 0.72/1.12     [ ~( member( X, 'universal_class' ) ), =( X, 'null_class' ), member( 
% 0.72/1.12    apply( choice, X ), X ) ],
% 0.72/1.12     [ ~( 'one_to_one'( X ) ), function( X ) ],
% 0.72/1.12     [ ~( 'one_to_one'( X ) ), function( inverse( X ) ) ],
% 0.72/1.12     [ ~( function( inverse( X ) ) ), ~( function( X ) ), 'one_to_one'( X ) ]
% 0.72/1.12    ,
% 0.72/1.12     [ =( intersection( 'cross_product'( 'universal_class', 'universal_class'
% 0.72/1.12     ), intersection( 'cross_product'( 'universal_class', 'universal_class' )
% 0.72/1.12    , complement( compose( complement( 'element_relation' ), inverse( 
% 0.72/1.12    'element_relation' ) ) ) ) ), 'subset_relation' ) ],
% 0.72/1.12     [ =( intersection( inverse( 'subset_relation' ), 'subset_relation' ), 
% 0.72/1.12    'identity_relation' ) ],
% 0.72/1.12     [ =( complement( 'domain_of'( intersection( X, 'identity_relation' ) ) )
% 0.72/1.12    , diagonalise( X ) ) ],
% 0.72/1.12     [ =( intersection( 'domain_of'( X ), diagonalise( compose( inverse( 
% 0.72/1.12    'element_relation' ), X ) ) ), cantor( X ) ) ],
% 0.72/1.12     [ ~( operation( X ) ), function( X ) ],
% 0.72/1.12     [ ~( operation( X ) ), =( 'cross_product'( 'domain_of'( 'domain_of'( X )
% 0.72/1.12     ), 'domain_of'( 'domain_of'( X ) ) ), 'domain_of'( X ) ) ],
% 0.72/1.12     [ ~( operation( X ) ), subclass( 'range_of'( X ), 'domain_of'( 
% 0.72/1.12    'domain_of'( X ) ) ) ],
% 0.72/1.12     [ ~( function( X ) ), ~( =( 'cross_product'( 'domain_of'( 'domain_of'( X
% 0.72/1.12     ) ), 'domain_of'( 'domain_of'( X ) ) ), 'domain_of'( X ) ) ), ~( 
% 0.72/1.12    subclass( 'range_of'( X ), 'domain_of'( 'domain_of'( X ) ) ) ), operation( 
% 0.72/1.12    X ) ],
% 0.72/1.12     [ ~( compatible( X, Y, Z ) ), function( X ) ],
% 0.72/1.12     [ ~( compatible( X, Y, Z ) ), =( 'domain_of'( 'domain_of'( Y ) ), 
% 0.72/1.12    'domain_of'( X ) ) ],
% 0.72/1.12     [ ~( compatible( X, Y, Z ) ), subclass( 'range_of'( X ), 'domain_of'( 
% 0.72/1.12    'domain_of'( Z ) ) ) ],
% 0.72/1.12     [ ~( function( X ) ), ~( =( 'domain_of'( 'domain_of'( Y ) ), 'domain_of'( 
% 0.72/1.12    X ) ) ), ~( subclass( 'range_of'( X ), 'domain_of'( 'domain_of'( Z ) ) )
% 0.72/1.12     ), compatible( X, Y, Z ) ],
% 0.72/1.12     [ ~( homomorphism( X, Y, Z ) ), operation( Y ) ],
% 0.72/1.12     [ ~( homomorphism( X, Y, Z ) ), operation( Z ) ],
% 0.72/1.12     [ ~( homomorphism( X, Y, Z ) ), compatible( X, Y, Z ) ],
% 0.72/1.12     [ ~( homomorphism( X, Y, Z ) ), ~( member( 'ordered_pair'( T, U ), 
% 0.72/1.12    'domain_of'( Y ) ) ), =( apply( Z, 'ordered_pair'( apply( X, T ), apply( 
% 0.72/1.12    X, U ) ) ), apply( X, apply( Y, 'ordered_pair'( T, U ) ) ) ) ],
% 0.72/1.12     [ ~( operation( X ) ), ~( operation( Y ) ), ~( compatible( Z, X, Y ) ), 
% 0.72/1.12    member( 'ordered_pair'( 'not_homomorphism1'( Z, X, Y ), 
% 0.72/1.12    'not_homomorphism2'( Z, X, Y ) ), 'domain_of'( X ) ), homomorphism( Z, X
% 0.72/1.12    , Y ) ],
% 0.72/1.12     [ ~( operation( X ) ), ~( operation( Y ) ), ~( compatible( Z, X, Y ) ), 
% 0.72/1.12    ~( =( apply( Y, 'ordered_pair'( apply( Z, 'not_homomorphism1'( Z, X, Y )
% 0.72/1.12     ), apply( Z, 'not_homomorphism2'( Z, X, Y ) ) ) ), apply( Z, apply( X, 
% 0.72/1.12    'ordered_pair'( 'not_homomorphism1'( Z, X, Y ), 'not_homomorphism2'( Z, X
% 0.72/1.12    , Y ) ) ) ) ) ), homomorphism( Z, X, Y ) ],
% 0.72/1.12     [ ~( member( 'ordered_pair'( X, Y ), 'cross_product'( Z, T ) ) ), member( 
% 0.72/1.12    X, 'unordered_pair'( X, Y ) ) ],
% 0.72/1.12     [ ~( member( 'ordered_pair'( X, Y ), 'cross_product'( Z, T ) ) ), member( 
% 0.72/1.12    Y, 'unordered_pair'( X, Y ) ) ],
% 0.72/1.12     [ ~( member( 'ordered_pair'( X, Y ), 'cross_product'( Z, T ) ) ), member( 
% 0.72/1.12    X, 'universal_class' ) ],
% 0.72/1.12     [ ~( member( 'ordered_pair'( X, Y ), 'cross_product'( Z, T ) ) ), member( 
% 0.72/1.12    Y, 'universal_class' ) ],
% 0.72/1.12     [ subclass( X, X ) ],
% 0.72/1.12     [ ~( subclass( X, Y ) ), ~( subclass( Y, Z ) ), subclass( X, Z ) ],
% 0.72/1.12     [ =( X, Y ), member( 'not_subclass_element'( X, Y ), X ), member( 
% 0.72/1.12    'not_subclass_element'( Y, X ), Y ) ],
% 0.72/1.12     [ ~( member( 'not_subclass_element'( X, Y ), Y ) ), =( X, Y ), member( 
% 0.72/1.12    'not_subclass_element'( Y, X ), Y ) ],
% 0.72/1.12     [ ~( member( 'not_subclass_element'( X, Y ), Y ) ), =( Y, X ), member( 
% 0.72/1.12    'not_subclass_element'( Y, X ), Y ) ],
% 0.72/1.12     [ ~( member( 'not_subclass_element'( X, Y ), Y ) ), ~( member( 
% 0.72/1.12    'not_subclass_element'( Y, X ), X ) ), =( X, Y ) ],
% 0.72/1.12     [ ~( member( X, intersection( complement( Y ), Y ) ) ) ],
% 0.72/1.12     [ ~( member( X, 'null_class' ) ) ],
% 0.72/1.12     [ subclass( 'null_class', X ) ],
% 0.72/1.12     [ ~( subclass( X, 'null_class' ) ), =( X, 'null_class' ) ],
% 0.72/1.12     [ =( X, 'null_class' ), member( 'not_subclass_element'( X, 'null_class'
% 0.72/1.12     ), X ) ],
% 0.72/1.12     [ member( 'null_class', 'universal_class' ) ],
% 0.72/1.12     [ =( 'unordered_pair'( X, Y ), 'unordered_pair'( Y, X ) ) ],
% 0.72/1.12     [ subclass( singleton( X ), 'unordered_pair'( X, Y ) ) ],
% 0.72/1.12     [ subclass( singleton( X ), 'unordered_pair'( Y, X ) ) ],
% 0.72/1.12     [ member( X, 'universal_class' ), =( 'unordered_pair'( Y, X ), singleton( 
% 0.72/1.12    Y ) ) ],
% 0.72/1.12     [ member( X, 'universal_class' ), =( 'unordered_pair'( X, Y ), singleton( 
% 0.72/1.12    Y ) ) ],
% 0.72/1.12     [ =( 'unordered_pair'( X, Y ), 'null_class' ), member( X, 
% 0.72/1.12    'universal_class' ), member( Y, 'universal_class' ) ],
% 0.72/1.12     [ ~( =( 'unordered_pair'( X, Y ), 'unordered_pair'( X, Z ) ) ), ~( 
% 0.72/1.12    member( 'ordered_pair'( Y, Z ), 'cross_product'( 'universal_class', 
% 0.72/1.12    'universal_class' ) ) ), =( Y, Z ) ],
% 0.72/1.12     [ ~( =( 'unordered_pair'( X, Y ), 'unordered_pair'( Z, Y ) ) ), ~( 
% 0.72/1.12    member( 'ordered_pair'( X, Z ), 'cross_product'( 'universal_class', 
% 0.72/1.12    'universal_class' ) ) ), =( X, Z ) ],
% 0.72/1.12     [ ~( member( X, 'universal_class' ) ), ~( =( 'unordered_pair'( X, Y ), 
% 0.72/1.12    'null_class' ) ) ],
% 0.72/1.12     [ ~( member( X, 'universal_class' ) ), ~( =( 'unordered_pair'( Y, X ), 
% 0.72/1.12    'null_class' ) ) ],
% 0.72/1.12     [ ~( member( 'ordered_pair'( X, Y ), 'cross_product'( Z, T ) ) ), ~( =( 
% 0.72/1.12    'unordered_pair'( X, Y ), 'null_class' ) ) ],
% 0.72/1.13     [ ~( member( X, Y ) ), ~( member( Z, Y ) ), subclass( 'unordered_pair'( 
% 0.72/1.13    X, Z ), Y ) ],
% 0.72/1.13     [ member( singleton( X ), 'universal_class' ) ],
% 0.72/1.13     [ member( singleton( X ), 'unordered_pair'( Y, singleton( X ) ) ) ],
% 0.72/1.13     [ ~( member( X, 'universal_class' ) ), member( X, singleton( X ) ) ]
% 0.72/1.13    ,
% 0.72/1.13     [ member( x, 'universal_class' ) ],
% 0.72/1.13     [ =( singleton( x ), 'null_class' ) ]
% 0.72/1.13  ] .
% 0.72/1.13  
% 0.72/1.13  
% 0.72/1.13  percentage equality = 0.233607, percentage horn = 0.879032
% 0.72/1.13  This is a problem with some equality
% 0.72/1.13  
% 0.72/1.13  
% 0.72/1.13  
% 0.72/1.13  Options Used:
% 0.72/1.13  
% 0.72/1.13  useres =            1
% 0.72/1.13  useparamod =        1
% 0.72/1.13  useeqrefl =         1
% 0.72/1.13  useeqfact =         1
% 0.72/1.13  usefactor =         1
% 0.72/1.13  usesimpsplitting =  0
% 0.72/1.13  usesimpdemod =      5
% 0.72/1.13  usesimpres =        3
% 0.72/1.13  
% 0.72/1.13  resimpinuse      =  1000
% 0.72/1.13  resimpclauses =     20000
% 0.72/1.13  substype =          eqrewr
% 0.72/1.13  backwardsubs =      1
% 0.72/1.13  selectoldest =      5
% 0.72/1.13  
% 0.72/1.13  litorderings [0] =  split
% 0.72/1.13  litorderings [1] =  extend the termordering, first sorting on arguments
% 0.72/1.13  
% 0.72/1.13  termordering =      kbo
% 0.72/1.13  
% 0.72/1.13  litapriori =        0
% 0.72/1.13  termapriori =       1
% 0.72/1.13  litaposteriori =    0
% 0.72/1.13  termaposteriori =   0
% 0.72/1.13  demodaposteriori =  0
% 0.72/1.13  ordereqreflfact =   0
% 0.72/1.13  
% 0.72/1.13  litselect =         negord
% 0.72/1.13  
% 0.72/1.13  maxweight =         15
% 0.72/1.13  maxdepth =          30000
% 0.72/1.13  maxlength =         115
% 0.72/1.13  maxnrvars =         195
% 0.72/1.13  excuselevel =       1
% 0.72/1.13  increasemaxweight = 1
% 0.72/1.13  
% 0.72/1.13  maxselected =       10000000
% 0.72/1.13  maxnrclauses =      10000000
% 0.72/1.13  
% 0.72/1.13  showgenerated =    0
% 0.72/1.13  showkept =         0
% 0.72/1.13  showselected =     0
% 0.72/1.13  showdeleted =      0
% 0.72/1.13  showresimp =       1
% 0.72/1.13  showstatus =       2000
% 0.72/1.13  
% 0.72/1.13  prologoutput =     1
% 0.72/1.13  nrgoals =          5000000
% 0.72/1.13  totalproof =       1
% 0.72/1.13  
% 0.72/1.13  Symbols occurring in the translation:
% 0.72/1.13  
% 0.72/1.13  {}  [0, 0]      (w:1, o:2, a:1, s:1, b:0), 
% 0.72/1.13  .  [1, 2]      (w:1, o:55, a:1, s:1, b:0), 
% 0.72/1.13  !  [4, 1]      (w:0, o:30, a:1, s:1, b:0), 
% 0.72/1.13  =  [13, 2]      (w:1, o:0, a:0, s:1, b:0), 
% 0.72/1.13  ==>  [14, 2]      (w:1, o:0, a:0, s:1, b:0), 
% 0.72/1.13  subclass  [41, 2]      (w:1, o:80, a:1, s:1, b:0), 
% 0.72/1.13  member  [43, 2]      (w:1, o:81, a:1, s:1, b:0), 
% 0.72/1.13  'not_subclass_element'  [44, 2]      (w:1, o:82, a:1, s:1, b:0), 
% 0.72/1.13  'universal_class'  [45, 0]      (w:1, o:21, a:1, s:1, b:0), 
% 0.72/1.13  'unordered_pair'  [46, 2]      (w:1, o:83, a:1, s:1, b:0), 
% 0.72/1.13  singleton  [47, 1]      (w:1, o:38, a:1, s:1, b:0), 
% 0.72/1.13  'ordered_pair'  [48, 2]      (w:1, o:84, a:1, s:1, b:0), 
% 0.72/1.13  'cross_product'  [50, 2]      (w:1, o:85, a:1, s:1, b:0), 
% 0.72/1.13  first  [52, 1]      (w:1, o:39, a:1, s:1, b:0), 
% 0.72/1.13  second  [53, 1]      (w:1, o:40, a:1, s:1, b:0), 
% 0.72/1.13  'element_relation'  [54, 0]      (w:1, o:25, a:1, s:1, b:0), 
% 0.72/1.13  intersection  [55, 2]      (w:1, o:87, a:1, s:1, b:0), 
% 0.72/1.13  complement  [56, 1]      (w:1, o:41, a:1, s:1, b:0), 
% 0.72/1.13  union  [57, 2]      (w:1, o:88, a:1, s:1, b:0), 
% 0.72/1.13  'symmetric_difference'  [58, 2]      (w:1, o:89, a:1, s:1, b:0), 
% 0.72/1.13  restrict  [60, 3]      (w:1, o:92, a:1, s:1, b:0), 
% 0.72/1.13  'null_class'  [61, 0]      (w:1, o:26, a:1, s:1, b:0), 
% 0.72/1.13  'domain_of'  [62, 1]      (w:1, o:43, a:1, s:1, b:0), 
% 0.72/1.13  rotate  [63, 1]      (w:1, o:35, a:1, s:1, b:0), 
% 0.72/1.13  flip  [65, 1]      (w:1, o:44, a:1, s:1, b:0), 
% 0.72/1.13  inverse  [66, 1]      (w:1, o:45, a:1, s:1, b:0), 
% 0.72/1.13  'range_of'  [67, 1]      (w:1, o:36, a:1, s:1, b:0), 
% 0.72/1.13  domain  [68, 3]      (w:1, o:94, a:1, s:1, b:0), 
% 0.72/1.13  range  [69, 3]      (w:1, o:95, a:1, s:1, b:0), 
% 0.72/1.13  image  [70, 2]      (w:1, o:86, a:1, s:1, b:0), 
% 0.72/1.13  successor  [71, 1]      (w:1, o:46, a:1, s:1, b:0), 
% 0.72/1.13  'successor_relation'  [72, 0]      (w:1, o:6, a:1, s:1, b:0), 
% 0.72/1.13  inductive  [73, 1]      (w:1, o:47, a:1, s:1, b:0), 
% 0.72/1.13  omega  [74, 0]      (w:1, o:9, a:1, s:1, b:0), 
% 0.72/1.13  'sum_class'  [75, 1]      (w:1, o:48, a:1, s:1, b:0), 
% 0.72/1.13  'power_class'  [76, 1]      (w:1, o:51, a:1, s:1, b:0), 
% 0.72/1.13  compose  [78, 2]      (w:1, o:90, a:1, s:1, b:0), 
% 0.72/1.13  'single_valued_class'  [79, 1]      (w:1, o:52, a:1, s:1, b:0), 
% 0.72/1.13  'identity_relation'  [80, 0]      (w:1, o:27, a:1, s:1, b:0), 
% 0.72/1.13  function  [82, 1]      (w:1, o:53, a:1, s:1, b:0), 
% 0.72/1.13  regular  [83, 1]      (w:1, o:37, a:1, s:1, b:0), 
% 0.72/1.13  apply  [84, 2]      (w:1, o:91, a:1, s:1, b:0), 
% 0.72/1.13  choice  [85, 0]      (w:1, o:28, a:1, s:1, b:0), 
% 0.72/1.13  'one_to_one'  [86, 1]      (w:1, o:49, a:1, s:1, b:0), 
% 0.72/1.13  'subset_relation'  [87, 0]      (w:1, o:5, a:1, s:1, b:0), 
% 0.72/1.13  diagonalise  [88, 1]      (w:1, o:54, a:1, s:1, b:0), 
% 0.72/1.13  cantor  [89, 1]      (w:1, o:42, a:1, s:1, b:0), 
% 0.72/1.13  operation  [90, 1]      (w:1, o:50, a:1, s:1, b:0), 
% 0.72/1.13  compatible  [94, 3]      (w:1, o:93, a:1, s:1, b:0), 
% 0.72/1.13  homomorphism  [95, 3]      (w:1, o:96, a:1, s:1, b:0), 
% 0.72/1.13  'not_homomorphism1'  [96, 3]      (w:1, o:97, a:1, s:1, b:0), 
% 0.72/1.13  'not_homomorphism2'  [97, 3]      (w:1, o:98, a:1, s:1, b:0), 
% 0.72/1.13  x  [98, 0]      (w:1, o:29, a:1, s:1, b:0).
% 0.72/1.13  
% 0.72/1.13  
% 0.72/1.13  Starting Search:
% 0.72/1.13  
% 0.72/1.13  
% 0.72/1.13  Bliksems!, er is een bewijs:
% 0.72/1.13  % SZS status Unsatisfiable
% 0.72/1.13  % SZS output start Refutation
% 0.72/1.13  
% 0.72/1.13  clause( 8, [ ~( member( X, 'universal_class' ) ), member( X, 
% 0.72/1.13    'unordered_pair'( Y, X ) ) ] )
% 0.72/1.13  .
% 0.72/1.13  clause( 10, [ =( 'unordered_pair'( X, X ), singleton( X ) ) ] )
% 0.72/1.13  .
% 0.72/1.13  clause( 100, [ ~( member( X, 'null_class' ) ) ] )
% 0.72/1.13  .
% 0.72/1.13  clause( 120, [ member( x, 'universal_class' ) ] )
% 0.72/1.13  .
% 0.72/1.13  clause( 121, [ =( singleton( x ), 'null_class' ) ] )
% 0.72/1.13  .
% 0.72/1.13  clause( 427, [ member( x, 'unordered_pair'( X, x ) ) ] )
% 0.72/1.13  .
% 0.72/1.13  clause( 458, [] )
% 0.72/1.13  .
% 0.72/1.13  
% 0.72/1.13  
% 0.72/1.13  % SZS output end Refutation
% 0.72/1.13  found a proof!
% 0.72/1.13  
% 0.72/1.13  % ABCDEFGHIJKLMNOPQRSTUVWXYZ
% 0.72/1.13  
% 0.72/1.13  initialclauses(
% 0.72/1.13  [ clause( 460, [ ~( subclass( X, Y ) ), ~( member( Z, X ) ), member( Z, Y )
% 0.72/1.13     ] )
% 0.72/1.13  , clause( 461, [ member( 'not_subclass_element'( X, Y ), X ), subclass( X, 
% 0.72/1.13    Y ) ] )
% 0.72/1.13  , clause( 462, [ ~( member( 'not_subclass_element'( X, Y ), Y ) ), subclass( 
% 0.72/1.13    X, Y ) ] )
% 0.72/1.13  , clause( 463, [ subclass( X, 'universal_class' ) ] )
% 0.72/1.13  , clause( 464, [ ~( =( X, Y ) ), subclass( X, Y ) ] )
% 0.72/1.13  , clause( 465, [ ~( =( X, Y ) ), subclass( Y, X ) ] )
% 0.72/1.13  , clause( 466, [ ~( subclass( X, Y ) ), ~( subclass( Y, X ) ), =( X, Y ) ]
% 0.72/1.13     )
% 0.72/1.13  , clause( 467, [ ~( member( X, 'unordered_pair'( Y, Z ) ) ), =( X, Y ), =( 
% 0.72/1.13    X, Z ) ] )
% 0.72/1.13  , clause( 468, [ ~( member( X, 'universal_class' ) ), member( X, 
% 0.72/1.13    'unordered_pair'( X, Y ) ) ] )
% 0.72/1.13  , clause( 469, [ ~( member( X, 'universal_class' ) ), member( X, 
% 0.72/1.13    'unordered_pair'( Y, X ) ) ] )
% 0.72/1.13  , clause( 470, [ member( 'unordered_pair'( X, Y ), 'universal_class' ) ] )
% 0.72/1.13  , clause( 471, [ =( 'unordered_pair'( X, X ), singleton( X ) ) ] )
% 0.72/1.13  , clause( 472, [ =( 'unordered_pair'( singleton( X ), 'unordered_pair'( X, 
% 0.72/1.13    singleton( Y ) ) ), 'ordered_pair'( X, Y ) ) ] )
% 0.72/1.13  , clause( 473, [ ~( member( 'ordered_pair'( X, Y ), 'cross_product'( Z, T )
% 0.72/1.13     ) ), member( X, Z ) ] )
% 0.72/1.13  , clause( 474, [ ~( member( 'ordered_pair'( X, Y ), 'cross_product'( Z, T )
% 0.72/1.13     ) ), member( Y, T ) ] )
% 0.72/1.13  , clause( 475, [ ~( member( X, Y ) ), ~( member( Z, T ) ), member( 
% 0.72/1.13    'ordered_pair'( X, Z ), 'cross_product'( Y, T ) ) ] )
% 0.72/1.13  , clause( 476, [ ~( member( X, 'cross_product'( Y, Z ) ) ), =( 
% 0.72/1.13    'ordered_pair'( first( X ), second( X ) ), X ) ] )
% 0.72/1.13  , clause( 477, [ subclass( 'element_relation', 'cross_product'( 
% 0.72/1.13    'universal_class', 'universal_class' ) ) ] )
% 0.72/1.13  , clause( 478, [ ~( member( 'ordered_pair'( X, Y ), 'element_relation' ) )
% 0.72/1.13    , member( X, Y ) ] )
% 0.72/1.13  , clause( 479, [ ~( member( 'ordered_pair'( X, Y ), 'cross_product'( 
% 0.72/1.13    'universal_class', 'universal_class' ) ) ), ~( member( X, Y ) ), member( 
% 0.72/1.13    'ordered_pair'( X, Y ), 'element_relation' ) ] )
% 0.72/1.13  , clause( 480, [ ~( member( X, intersection( Y, Z ) ) ), member( X, Y ) ]
% 0.72/1.13     )
% 0.72/1.13  , clause( 481, [ ~( member( X, intersection( Y, Z ) ) ), member( X, Z ) ]
% 0.72/1.13     )
% 0.72/1.13  , clause( 482, [ ~( member( X, Y ) ), ~( member( X, Z ) ), member( X, 
% 0.72/1.13    intersection( Y, Z ) ) ] )
% 0.72/1.13  , clause( 483, [ ~( member( X, complement( Y ) ) ), ~( member( X, Y ) ) ]
% 0.72/1.13     )
% 0.72/1.13  , clause( 484, [ ~( member( X, 'universal_class' ) ), member( X, complement( 
% 0.72/1.13    Y ) ), member( X, Y ) ] )
% 0.72/1.13  , clause( 485, [ =( complement( intersection( complement( X ), complement( 
% 0.72/1.13    Y ) ) ), union( X, Y ) ) ] )
% 0.72/1.13  , clause( 486, [ =( intersection( complement( intersection( X, Y ) ), 
% 0.72/1.13    complement( intersection( complement( X ), complement( Y ) ) ) ), 
% 0.72/1.13    'symmetric_difference'( X, Y ) ) ] )
% 0.72/1.13  , clause( 487, [ =( intersection( X, 'cross_product'( Y, Z ) ), restrict( X
% 0.72/1.13    , Y, Z ) ) ] )
% 0.72/1.13  , clause( 488, [ =( intersection( 'cross_product'( X, Y ), Z ), restrict( Z
% 0.72/1.13    , X, Y ) ) ] )
% 0.72/1.13  , clause( 489, [ ~( =( restrict( X, singleton( Y ), 'universal_class' ), 
% 0.72/1.13    'null_class' ) ), ~( member( Y, 'domain_of'( X ) ) ) ] )
% 0.72/1.13  , clause( 490, [ ~( member( X, 'universal_class' ) ), =( restrict( Y, 
% 0.72/1.13    singleton( X ), 'universal_class' ), 'null_class' ), member( X, 
% 0.72/1.13    'domain_of'( Y ) ) ] )
% 0.72/1.13  , clause( 491, [ subclass( rotate( X ), 'cross_product'( 'cross_product'( 
% 0.72/1.13    'universal_class', 'universal_class' ), 'universal_class' ) ) ] )
% 0.72/1.13  , clause( 492, [ ~( member( 'ordered_pair'( 'ordered_pair'( X, Y ), Z ), 
% 0.72/1.13    rotate( T ) ) ), member( 'ordered_pair'( 'ordered_pair'( Y, Z ), X ), T )
% 0.72/1.13     ] )
% 0.72/1.13  , clause( 493, [ ~( member( 'ordered_pair'( 'ordered_pair'( X, Y ), Z ), T
% 0.72/1.13     ) ), ~( member( 'ordered_pair'( 'ordered_pair'( Z, X ), Y ), 
% 0.72/1.13    'cross_product'( 'cross_product'( 'universal_class', 'universal_class' )
% 0.72/1.13    , 'universal_class' ) ) ), member( 'ordered_pair'( 'ordered_pair'( Z, X )
% 0.72/1.13    , Y ), rotate( T ) ) ] )
% 0.72/1.13  , clause( 494, [ subclass( flip( X ), 'cross_product'( 'cross_product'( 
% 0.72/1.13    'universal_class', 'universal_class' ), 'universal_class' ) ) ] )
% 0.72/1.13  , clause( 495, [ ~( member( 'ordered_pair'( 'ordered_pair'( X, Y ), Z ), 
% 0.72/1.13    flip( T ) ) ), member( 'ordered_pair'( 'ordered_pair'( Y, X ), Z ), T ) ]
% 0.72/1.13     )
% 0.72/1.13  , clause( 496, [ ~( member( 'ordered_pair'( 'ordered_pair'( X, Y ), Z ), T
% 0.72/1.13     ) ), ~( member( 'ordered_pair'( 'ordered_pair'( Y, X ), Z ), 
% 0.72/1.13    'cross_product'( 'cross_product'( 'universal_class', 'universal_class' )
% 0.72/1.13    , 'universal_class' ) ) ), member( 'ordered_pair'( 'ordered_pair'( Y, X )
% 0.72/1.13    , Z ), flip( T ) ) ] )
% 0.72/1.13  , clause( 497, [ =( 'domain_of'( flip( 'cross_product'( X, 
% 0.72/1.13    'universal_class' ) ) ), inverse( X ) ) ] )
% 0.72/1.13  , clause( 498, [ =( 'domain_of'( inverse( X ) ), 'range_of'( X ) ) ] )
% 0.72/1.13  , clause( 499, [ =( first( 'not_subclass_element'( restrict( X, Y, 
% 0.72/1.13    singleton( Z ) ), 'null_class' ) ), domain( X, Y, Z ) ) ] )
% 0.72/1.13  , clause( 500, [ =( second( 'not_subclass_element'( restrict( X, singleton( 
% 0.72/1.13    Y ), Z ), 'null_class' ) ), range( X, Y, Z ) ) ] )
% 0.72/1.13  , clause( 501, [ =( 'range_of'( restrict( X, Y, 'universal_class' ) ), 
% 0.72/1.13    image( X, Y ) ) ] )
% 0.72/1.13  , clause( 502, [ =( union( X, singleton( X ) ), successor( X ) ) ] )
% 0.72/1.13  , clause( 503, [ subclass( 'successor_relation', 'cross_product'( 
% 0.72/1.13    'universal_class', 'universal_class' ) ) ] )
% 0.72/1.13  , clause( 504, [ ~( member( 'ordered_pair'( X, Y ), 'successor_relation' )
% 0.72/1.13     ), =( successor( X ), Y ) ] )
% 0.72/1.13  , clause( 505, [ ~( =( successor( X ), Y ) ), ~( member( 'ordered_pair'( X
% 0.72/1.13    , Y ), 'cross_product'( 'universal_class', 'universal_class' ) ) ), 
% 0.72/1.13    member( 'ordered_pair'( X, Y ), 'successor_relation' ) ] )
% 0.72/1.13  , clause( 506, [ ~( inductive( X ) ), member( 'null_class', X ) ] )
% 0.72/1.13  , clause( 507, [ ~( inductive( X ) ), subclass( image( 'successor_relation'
% 0.72/1.13    , X ), X ) ] )
% 0.72/1.13  , clause( 508, [ ~( member( 'null_class', X ) ), ~( subclass( image( 
% 0.72/1.13    'successor_relation', X ), X ) ), inductive( X ) ] )
% 0.72/1.13  , clause( 509, [ inductive( omega ) ] )
% 0.72/1.13  , clause( 510, [ ~( inductive( X ) ), subclass( omega, X ) ] )
% 0.72/1.13  , clause( 511, [ member( omega, 'universal_class' ) ] )
% 0.72/1.13  , clause( 512, [ =( 'domain_of'( restrict( 'element_relation', 
% 0.72/1.13    'universal_class', X ) ), 'sum_class'( X ) ) ] )
% 0.72/1.13  , clause( 513, [ ~( member( X, 'universal_class' ) ), member( 'sum_class'( 
% 0.72/1.13    X ), 'universal_class' ) ] )
% 0.72/1.13  , clause( 514, [ =( complement( image( 'element_relation', complement( X )
% 0.72/1.13     ) ), 'power_class'( X ) ) ] )
% 0.72/1.13  , clause( 515, [ ~( member( X, 'universal_class' ) ), member( 'power_class'( 
% 0.72/1.13    X ), 'universal_class' ) ] )
% 0.72/1.13  , clause( 516, [ subclass( compose( X, Y ), 'cross_product'( 
% 0.72/1.13    'universal_class', 'universal_class' ) ) ] )
% 0.72/1.13  , clause( 517, [ ~( member( 'ordered_pair'( X, Y ), compose( Z, T ) ) ), 
% 0.72/1.13    member( Y, image( Z, image( T, singleton( X ) ) ) ) ] )
% 0.72/1.13  , clause( 518, [ ~( member( X, image( Y, image( Z, singleton( T ) ) ) ) ), 
% 0.72/1.13    ~( member( 'ordered_pair'( T, X ), 'cross_product'( 'universal_class', 
% 0.72/1.13    'universal_class' ) ) ), member( 'ordered_pair'( T, X ), compose( Y, Z )
% 0.72/1.13     ) ] )
% 0.72/1.13  , clause( 519, [ ~( 'single_valued_class'( X ) ), subclass( compose( X, 
% 0.72/1.13    inverse( X ) ), 'identity_relation' ) ] )
% 0.72/1.13  , clause( 520, [ ~( subclass( compose( X, inverse( X ) ), 
% 0.72/1.13    'identity_relation' ) ), 'single_valued_class'( X ) ] )
% 0.72/1.13  , clause( 521, [ ~( function( X ) ), subclass( X, 'cross_product'( 
% 0.72/1.13    'universal_class', 'universal_class' ) ) ] )
% 0.72/1.13  , clause( 522, [ ~( function( X ) ), subclass( compose( X, inverse( X ) ), 
% 0.72/1.13    'identity_relation' ) ] )
% 0.72/1.13  , clause( 523, [ ~( subclass( X, 'cross_product'( 'universal_class', 
% 0.72/1.13    'universal_class' ) ) ), ~( subclass( compose( X, inverse( X ) ), 
% 0.72/1.13    'identity_relation' ) ), function( X ) ] )
% 0.72/1.13  , clause( 524, [ ~( function( X ) ), ~( member( Y, 'universal_class' ) ), 
% 0.72/1.13    member( image( X, Y ), 'universal_class' ) ] )
% 0.72/1.13  , clause( 525, [ =( X, 'null_class' ), member( regular( X ), X ) ] )
% 0.72/1.13  , clause( 526, [ =( X, 'null_class' ), =( intersection( X, regular( X ) ), 
% 0.72/1.13    'null_class' ) ] )
% 0.72/1.13  , clause( 527, [ =( 'sum_class'( image( X, singleton( Y ) ) ), apply( X, Y
% 0.72/1.13     ) ) ] )
% 0.72/1.13  , clause( 528, [ function( choice ) ] )
% 0.72/1.13  , clause( 529, [ ~( member( X, 'universal_class' ) ), =( X, 'null_class' )
% 0.72/1.13    , member( apply( choice, X ), X ) ] )
% 0.72/1.13  , clause( 530, [ ~( 'one_to_one'( X ) ), function( X ) ] )
% 0.72/1.13  , clause( 531, [ ~( 'one_to_one'( X ) ), function( inverse( X ) ) ] )
% 0.72/1.13  , clause( 532, [ ~( function( inverse( X ) ) ), ~( function( X ) ), 
% 0.72/1.13    'one_to_one'( X ) ] )
% 0.72/1.13  , clause( 533, [ =( intersection( 'cross_product'( 'universal_class', 
% 0.72/1.13    'universal_class' ), intersection( 'cross_product'( 'universal_class', 
% 0.72/1.13    'universal_class' ), complement( compose( complement( 'element_relation'
% 0.72/1.13     ), inverse( 'element_relation' ) ) ) ) ), 'subset_relation' ) ] )
% 0.72/1.13  , clause( 534, [ =( intersection( inverse( 'subset_relation' ), 
% 0.72/1.13    'subset_relation' ), 'identity_relation' ) ] )
% 0.72/1.13  , clause( 535, [ =( complement( 'domain_of'( intersection( X, 
% 0.72/1.13    'identity_relation' ) ) ), diagonalise( X ) ) ] )
% 0.72/1.13  , clause( 536, [ =( intersection( 'domain_of'( X ), diagonalise( compose( 
% 0.72/1.13    inverse( 'element_relation' ), X ) ) ), cantor( X ) ) ] )
% 0.72/1.13  , clause( 537, [ ~( operation( X ) ), function( X ) ] )
% 0.72/1.13  , clause( 538, [ ~( operation( X ) ), =( 'cross_product'( 'domain_of'( 
% 0.72/1.13    'domain_of'( X ) ), 'domain_of'( 'domain_of'( X ) ) ), 'domain_of'( X ) )
% 0.72/1.13     ] )
% 0.72/1.13  , clause( 539, [ ~( operation( X ) ), subclass( 'range_of'( X ), 
% 0.72/1.13    'domain_of'( 'domain_of'( X ) ) ) ] )
% 0.72/1.13  , clause( 540, [ ~( function( X ) ), ~( =( 'cross_product'( 'domain_of'( 
% 0.72/1.13    'domain_of'( X ) ), 'domain_of'( 'domain_of'( X ) ) ), 'domain_of'( X ) )
% 0.72/1.13     ), ~( subclass( 'range_of'( X ), 'domain_of'( 'domain_of'( X ) ) ) ), 
% 0.72/1.13    operation( X ) ] )
% 0.72/1.13  , clause( 541, [ ~( compatible( X, Y, Z ) ), function( X ) ] )
% 0.72/1.13  , clause( 542, [ ~( compatible( X, Y, Z ) ), =( 'domain_of'( 'domain_of'( Y
% 0.72/1.13     ) ), 'domain_of'( X ) ) ] )
% 0.72/1.13  , clause( 543, [ ~( compatible( X, Y, Z ) ), subclass( 'range_of'( X ), 
% 0.72/1.13    'domain_of'( 'domain_of'( Z ) ) ) ] )
% 0.72/1.13  , clause( 544, [ ~( function( X ) ), ~( =( 'domain_of'( 'domain_of'( Y ) )
% 0.72/1.13    , 'domain_of'( X ) ) ), ~( subclass( 'range_of'( X ), 'domain_of'( 
% 0.72/1.13    'domain_of'( Z ) ) ) ), compatible( X, Y, Z ) ] )
% 0.72/1.13  , clause( 545, [ ~( homomorphism( X, Y, Z ) ), operation( Y ) ] )
% 0.72/1.13  , clause( 546, [ ~( homomorphism( X, Y, Z ) ), operation( Z ) ] )
% 0.72/1.13  , clause( 547, [ ~( homomorphism( X, Y, Z ) ), compatible( X, Y, Z ) ] )
% 0.72/1.13  , clause( 548, [ ~( homomorphism( X, Y, Z ) ), ~( member( 'ordered_pair'( T
% 0.72/1.13    , U ), 'domain_of'( Y ) ) ), =( apply( Z, 'ordered_pair'( apply( X, T ), 
% 0.72/1.13    apply( X, U ) ) ), apply( X, apply( Y, 'ordered_pair'( T, U ) ) ) ) ] )
% 0.72/1.13  , clause( 549, [ ~( operation( X ) ), ~( operation( Y ) ), ~( compatible( Z
% 0.72/1.13    , X, Y ) ), member( 'ordered_pair'( 'not_homomorphism1'( Z, X, Y ), 
% 0.72/1.13    'not_homomorphism2'( Z, X, Y ) ), 'domain_of'( X ) ), homomorphism( Z, X
% 0.72/1.13    , Y ) ] )
% 0.72/1.13  , clause( 550, [ ~( operation( X ) ), ~( operation( Y ) ), ~( compatible( Z
% 0.72/1.13    , X, Y ) ), ~( =( apply( Y, 'ordered_pair'( apply( Z, 'not_homomorphism1'( 
% 0.72/1.13    Z, X, Y ) ), apply( Z, 'not_homomorphism2'( Z, X, Y ) ) ) ), apply( Z, 
% 0.72/1.13    apply( X, 'ordered_pair'( 'not_homomorphism1'( Z, X, Y ), 
% 0.72/1.13    'not_homomorphism2'( Z, X, Y ) ) ) ) ) ), homomorphism( Z, X, Y ) ] )
% 0.72/1.13  , clause( 551, [ ~( member( 'ordered_pair'( X, Y ), 'cross_product'( Z, T )
% 0.72/1.13     ) ), member( X, 'unordered_pair'( X, Y ) ) ] )
% 0.72/1.13  , clause( 552, [ ~( member( 'ordered_pair'( X, Y ), 'cross_product'( Z, T )
% 0.72/1.13     ) ), member( Y, 'unordered_pair'( X, Y ) ) ] )
% 0.72/1.13  , clause( 553, [ ~( member( 'ordered_pair'( X, Y ), 'cross_product'( Z, T )
% 0.72/1.13     ) ), member( X, 'universal_class' ) ] )
% 0.72/1.13  , clause( 554, [ ~( member( 'ordered_pair'( X, Y ), 'cross_product'( Z, T )
% 0.72/1.13     ) ), member( Y, 'universal_class' ) ] )
% 0.72/1.13  , clause( 555, [ subclass( X, X ) ] )
% 0.72/1.13  , clause( 556, [ ~( subclass( X, Y ) ), ~( subclass( Y, Z ) ), subclass( X
% 0.72/1.13    , Z ) ] )
% 0.72/1.13  , clause( 557, [ =( X, Y ), member( 'not_subclass_element'( X, Y ), X ), 
% 0.72/1.13    member( 'not_subclass_element'( Y, X ), Y ) ] )
% 0.72/1.13  , clause( 558, [ ~( member( 'not_subclass_element'( X, Y ), Y ) ), =( X, Y
% 0.72/1.13     ), member( 'not_subclass_element'( Y, X ), Y ) ] )
% 0.72/1.13  , clause( 559, [ ~( member( 'not_subclass_element'( X, Y ), Y ) ), =( Y, X
% 0.72/1.13     ), member( 'not_subclass_element'( Y, X ), Y ) ] )
% 0.72/1.13  , clause( 560, [ ~( member( 'not_subclass_element'( X, Y ), Y ) ), ~( 
% 0.72/1.13    member( 'not_subclass_element'( Y, X ), X ) ), =( X, Y ) ] )
% 0.72/1.13  , clause( 561, [ ~( member( X, intersection( complement( Y ), Y ) ) ) ] )
% 0.72/1.13  , clause( 562, [ ~( member( X, 'null_class' ) ) ] )
% 0.72/1.13  , clause( 563, [ subclass( 'null_class', X ) ] )
% 0.72/1.13  , clause( 564, [ ~( subclass( X, 'null_class' ) ), =( X, 'null_class' ) ]
% 0.72/1.13     )
% 0.72/1.13  , clause( 565, [ =( X, 'null_class' ), member( 'not_subclass_element'( X, 
% 0.72/1.13    'null_class' ), X ) ] )
% 0.72/1.13  , clause( 566, [ member( 'null_class', 'universal_class' ) ] )
% 0.72/1.13  , clause( 567, [ =( 'unordered_pair'( X, Y ), 'unordered_pair'( Y, X ) ) ]
% 0.72/1.13     )
% 0.72/1.13  , clause( 568, [ subclass( singleton( X ), 'unordered_pair'( X, Y ) ) ] )
% 0.72/1.13  , clause( 569, [ subclass( singleton( X ), 'unordered_pair'( Y, X ) ) ] )
% 0.72/1.13  , clause( 570, [ member( X, 'universal_class' ), =( 'unordered_pair'( Y, X
% 0.72/1.13     ), singleton( Y ) ) ] )
% 0.72/1.13  , clause( 571, [ member( X, 'universal_class' ), =( 'unordered_pair'( X, Y
% 0.72/1.13     ), singleton( Y ) ) ] )
% 0.72/1.13  , clause( 572, [ =( 'unordered_pair'( X, Y ), 'null_class' ), member( X, 
% 0.72/1.13    'universal_class' ), member( Y, 'universal_class' ) ] )
% 0.72/1.13  , clause( 573, [ ~( =( 'unordered_pair'( X, Y ), 'unordered_pair'( X, Z ) )
% 0.72/1.13     ), ~( member( 'ordered_pair'( Y, Z ), 'cross_product'( 'universal_class'
% 0.72/1.13    , 'universal_class' ) ) ), =( Y, Z ) ] )
% 0.72/1.13  , clause( 574, [ ~( =( 'unordered_pair'( X, Y ), 'unordered_pair'( Z, Y ) )
% 0.72/1.13     ), ~( member( 'ordered_pair'( X, Z ), 'cross_product'( 'universal_class'
% 0.72/1.13    , 'universal_class' ) ) ), =( X, Z ) ] )
% 0.72/1.13  , clause( 575, [ ~( member( X, 'universal_class' ) ), ~( =( 
% 0.72/1.13    'unordered_pair'( X, Y ), 'null_class' ) ) ] )
% 0.72/1.13  , clause( 576, [ ~( member( X, 'universal_class' ) ), ~( =( 
% 0.72/1.13    'unordered_pair'( Y, X ), 'null_class' ) ) ] )
% 0.72/1.13  , clause( 577, [ ~( member( 'ordered_pair'( X, Y ), 'cross_product'( Z, T )
% 0.72/1.13     ) ), ~( =( 'unordered_pair'( X, Y ), 'null_class' ) ) ] )
% 0.72/1.13  , clause( 578, [ ~( member( X, Y ) ), ~( member( Z, Y ) ), subclass( 
% 0.72/1.13    'unordered_pair'( X, Z ), Y ) ] )
% 0.72/1.13  , clause( 579, [ member( singleton( X ), 'universal_class' ) ] )
% 0.72/1.13  , clause( 580, [ member( singleton( X ), 'unordered_pair'( Y, singleton( X
% 0.72/1.13     ) ) ) ] )
% 0.72/1.13  , clause( 581, [ ~( member( X, 'universal_class' ) ), member( X, singleton( 
% 0.72/1.13    X ) ) ] )
% 0.72/1.13  , clause( 582, [ member( x, 'universal_class' ) ] )
% 0.72/1.13  , clause( 583, [ =( singleton( x ), 'null_class' ) ] )
% 0.72/1.13  ] ).
% 0.72/1.13  
% 0.72/1.13  
% 0.72/1.13  
% 0.72/1.13  subsumption(
% 0.72/1.13  clause( 8, [ ~( member( X, 'universal_class' ) ), member( X, 
% 0.72/1.13    'unordered_pair'( Y, X ) ) ] )
% 0.72/1.13  , clause( 469, [ ~( member( X, 'universal_class' ) ), member( X, 
% 0.72/1.13    'unordered_pair'( Y, X ) ) ] )
% 0.72/1.13  , substitution( 0, [ :=( X, X ), :=( Y, Y )] ), permutation( 0, [ ==>( 0, 0
% 0.72/1.13     ), ==>( 1, 1 )] ) ).
% 0.72/1.13  
% 0.72/1.13  
% 0.72/1.13  subsumption(
% 0.72/1.13  clause( 10, [ =( 'unordered_pair'( X, X ), singleton( X ) ) ] )
% 0.72/1.13  , clause( 471, [ =( 'unordered_pair'( X, X ), singleton( X ) ) ] )
% 0.72/1.13  , substitution( 0, [ :=( X, X )] ), permutation( 0, [ ==>( 0, 0 )] ) ).
% 0.72/1.13  
% 0.72/1.13  
% 0.72/1.13  subsumption(
% 0.72/1.13  clause( 100, [ ~( member( X, 'null_class' ) ) ] )
% 0.72/1.13  , clause( 562, [ ~( member( X, 'null_class' ) ) ] )
% 0.72/1.13  , substitution( 0, [ :=( X, X )] ), permutation( 0, [ ==>( 0, 0 )] ) ).
% 0.72/1.13  
% 0.72/1.13  
% 0.72/1.13  subsumption(
% 0.72/1.13  clause( 120, [ member( x, 'universal_class' ) ] )
% 0.72/1.13  , clause( 582, [ member( x, 'universal_class' ) ] )
% 0.72/1.13  , substitution( 0, [] ), permutation( 0, [ ==>( 0, 0 )] ) ).
% 0.72/1.13  
% 0.72/1.13  
% 0.72/1.13  subsumption(
% 0.72/1.13  clause( 121, [ =( singleton( x ), 'null_class' ) ] )
% 0.72/1.13  , clause( 583, [ =( singleton( x ), 'null_class' ) ] )
% 0.72/1.13  , substitution( 0, [] ), permutation( 0, [ ==>( 0, 0 )] ) ).
% 0.72/1.13  
% 0.72/1.13  
% 0.72/1.13  resolution(
% 0.72/1.13  clause( 801, [ member( x, 'unordered_pair'( X, x ) ) ] )
% 0.72/1.13  , clause( 8, [ ~( member( X, 'universal_class' ) ), member( X, 
% 0.72/1.13    'unordered_pair'( Y, X ) ) ] )
% 0.72/1.13  , 0, clause( 120, [ member( x, 'universal_class' ) ] )
% 0.72/1.13  , 0, substitution( 0, [ :=( X, x ), :=( Y, X )] ), substitution( 1, [] )
% 0.72/1.13    ).
% 0.72/1.13  
% 0.72/1.13  
% 0.72/1.13  subsumption(
% 0.72/1.13  clause( 427, [ member( x, 'unordered_pair'( X, x ) ) ] )
% 0.72/1.13  , clause( 801, [ member( x, 'unordered_pair'( X, x ) ) ] )
% 0.72/1.13  , substitution( 0, [ :=( X, X )] ), permutation( 0, [ ==>( 0, 0 )] ) ).
% 0.72/1.13  
% 0.72/1.13  
% 0.72/1.13  paramod(
% 0.72/1.13  clause( 804, [ member( x, singleton( x ) ) ] )
% 0.72/1.13  , clause( 10, [ =( 'unordered_pair'( X, X ), singleton( X ) ) ] )
% 0.72/1.13  , 0, clause( 427, [ member( x, 'unordered_pair'( X, x ) ) ] )
% 0.72/1.13  , 0, 2, substitution( 0, [ :=( X, x )] ), substitution( 1, [ :=( X, x )] )
% 0.72/1.13    ).
% 0.72/1.13  
% 0.72/1.13  
% 0.72/1.13  paramod(
% 0.72/1.13  clause( 805, [ member( x, 'null_class' ) ] )
% 0.72/1.13  , clause( 121, [ =( singleton( x ), 'null_class' ) ] )
% 0.72/1.13  , 0, clause( 804, [ member( x, singleton( x ) ) ] )
% 0.72/1.13  , 0, 2, substitution( 0, [] ), substitution( 1, [] )).
% 0.72/1.13  
% 0.72/1.13  
% 0.72/1.13  resolution(
% 0.72/1.13  clause( 806, [] )
% 0.72/1.13  , clause( 100, [ ~( member( X, 'null_class' ) ) ] )
% 0.72/1.13  , 0, clause( 805, [ member( x, 'null_class' ) ] )
% 0.72/1.13  , 0, substitution( 0, [ :=( X, x )] ), substitution( 1, [] )).
% 0.72/1.13  
% 0.72/1.13  
% 0.72/1.13  subsumption(
% 0.72/1.13  clause( 458, [] )
% 0.72/1.13  , clause( 806, [] )
% 0.72/1.13  , substitution( 0, [] ), permutation( 0, [] ) ).
% 0.72/1.13  
% 0.72/1.13  
% 0.72/1.13  end.
% 0.72/1.13  
% 0.72/1.13  % ABCDEFGHIJKLMNOPQRSTUVWXYZ
% 0.72/1.13  
% 0.72/1.13  Memory use:
% 0.72/1.13  
% 0.72/1.13  space for terms:        9098
% 0.72/1.13  space for clauses:      25745
% 0.72/1.13  
% 0.72/1.13  
% 0.72/1.13  clauses generated:      876
% 0.72/1.13  clauses kept:           459
% 0.72/1.13  clauses selected:       46
% 0.72/1.13  clauses deleted:        0
% 0.72/1.13  clauses inuse deleted:  0
% 0.72/1.13  
% 0.72/1.13  subsentry:          2584
% 0.72/1.13  literals s-matched: 2012
% 0.72/1.13  literals matched:   1964
% 0.72/1.13  full subsumption:   894
% 0.72/1.13  
% 0.72/1.13  checksum:           -449109053
% 0.72/1.13  
% 0.72/1.13  
% 0.72/1.13  Bliksem ended
%------------------------------------------------------------------------------