TSTP Solution File: SET120-7 by Bliksem---1.12

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : Bliksem---1.12
% Problem  : SET120-7 : TPTP v8.1.0. Bugfixed v7.3.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : bliksem %s

% Computer : n027.cluster.edu
% Model    : x86_64 x86_64
% CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 2.10GHz
% Memory   : 8042.1875MB
% OS       : Linux 3.10.0-693.el7.x86_64
% CPULimit : 300s
% WCLimit  : 0s
% DateTime : Mon Jul 18 22:47:23 EDT 2022

% Result   : Unsatisfiable 6.69s 7.09s
% Output   : Refutation 6.69s
% Verified : 
% SZS Type : -

% Comments : 
%------------------------------------------------------------------------------
%----WARNING: Could not form TPTP format derivation
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.04/0.13  % Problem  : SET120-7 : TPTP v8.1.0. Bugfixed v7.3.0.
% 0.04/0.13  % Command  : bliksem %s
% 0.13/0.34  % Computer : n027.cluster.edu
% 0.13/0.34  % Model    : x86_64 x86_64
% 0.13/0.34  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.13/0.34  % Memory   : 8042.1875MB
% 0.13/0.34  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.13/0.35  % CPULimit : 300
% 0.13/0.35  % DateTime : Mon Jul 11 08:17:18 EDT 2022
% 0.13/0.35  % CPUTime  : 
% 0.77/1.16  *** allocated 10000 integers for termspace/termends
% 0.77/1.16  *** allocated 10000 integers for clauses
% 0.77/1.16  *** allocated 10000 integers for justifications
% 0.77/1.16  Bliksem 1.12
% 0.77/1.16  
% 0.77/1.16  
% 0.77/1.16  Automatic Strategy Selection
% 0.77/1.16  
% 0.77/1.16  Clauses:
% 0.77/1.16  [
% 0.77/1.16     [ ~( subclass( X, Y ) ), ~( member( Z, X ) ), member( Z, Y ) ],
% 0.77/1.16     [ member( 'not_subclass_element'( X, Y ), X ), subclass( X, Y ) ],
% 0.77/1.16     [ ~( member( 'not_subclass_element'( X, Y ), Y ) ), subclass( X, Y ) ]
% 0.77/1.16    ,
% 0.77/1.16     [ subclass( X, 'universal_class' ) ],
% 0.77/1.16     [ ~( =( X, Y ) ), subclass( X, Y ) ],
% 0.77/1.16     [ ~( =( X, Y ) ), subclass( Y, X ) ],
% 0.77/1.16     [ ~( subclass( X, Y ) ), ~( subclass( Y, X ) ), =( X, Y ) ],
% 0.77/1.16     [ ~( member( X, 'unordered_pair'( Y, Z ) ) ), =( X, Y ), =( X, Z ) ]
% 0.77/1.16    ,
% 0.77/1.16     [ ~( member( X, 'universal_class' ) ), member( X, 'unordered_pair'( X, Y
% 0.77/1.16     ) ) ],
% 0.77/1.16     [ ~( member( X, 'universal_class' ) ), member( X, 'unordered_pair'( Y, X
% 0.77/1.16     ) ) ],
% 0.77/1.16     [ member( 'unordered_pair'( X, Y ), 'universal_class' ) ],
% 0.77/1.16     [ =( 'unordered_pair'( X, X ), singleton( X ) ) ],
% 0.77/1.16     [ =( 'unordered_pair'( singleton( X ), 'unordered_pair'( X, singleton( Y
% 0.77/1.16     ) ) ), 'ordered_pair'( X, Y ) ) ],
% 0.77/1.16     [ ~( member( 'ordered_pair'( X, Y ), 'cross_product'( Z, T ) ) ), member( 
% 0.77/1.16    X, Z ) ],
% 0.77/1.16     [ ~( member( 'ordered_pair'( X, Y ), 'cross_product'( Z, T ) ) ), member( 
% 0.77/1.16    Y, T ) ],
% 0.77/1.16     [ ~( member( X, Y ) ), ~( member( Z, T ) ), member( 'ordered_pair'( X, Z
% 0.77/1.16     ), 'cross_product'( Y, T ) ) ],
% 0.77/1.16     [ ~( member( X, 'cross_product'( Y, Z ) ) ), =( 'ordered_pair'( first( X
% 0.77/1.16     ), second( X ) ), X ) ],
% 0.77/1.16     [ subclass( 'element_relation', 'cross_product'( 'universal_class', 
% 0.77/1.16    'universal_class' ) ) ],
% 0.77/1.16     [ ~( member( 'ordered_pair'( X, Y ), 'element_relation' ) ), member( X, 
% 0.77/1.16    Y ) ],
% 0.77/1.16     [ ~( member( 'ordered_pair'( X, Y ), 'cross_product'( 'universal_class'
% 0.77/1.16    , 'universal_class' ) ) ), ~( member( X, Y ) ), member( 'ordered_pair'( X
% 0.77/1.16    , Y ), 'element_relation' ) ],
% 0.77/1.16     [ ~( member( X, intersection( Y, Z ) ) ), member( X, Y ) ],
% 0.77/1.16     [ ~( member( X, intersection( Y, Z ) ) ), member( X, Z ) ],
% 0.77/1.16     [ ~( member( X, Y ) ), ~( member( X, Z ) ), member( X, intersection( Y, 
% 0.77/1.16    Z ) ) ],
% 0.77/1.16     [ ~( member( X, complement( Y ) ) ), ~( member( X, Y ) ) ],
% 0.77/1.16     [ ~( member( X, 'universal_class' ) ), member( X, complement( Y ) ), 
% 0.77/1.16    member( X, Y ) ],
% 0.77/1.16     [ =( complement( intersection( complement( X ), complement( Y ) ) ), 
% 0.77/1.16    union( X, Y ) ) ],
% 0.77/1.16     [ =( intersection( complement( intersection( X, Y ) ), complement( 
% 0.77/1.16    intersection( complement( X ), complement( Y ) ) ) ), 
% 0.77/1.16    'symmetric_difference'( X, Y ) ) ],
% 0.77/1.16     [ =( intersection( X, 'cross_product'( Y, Z ) ), restrict( X, Y, Z ) ) ]
% 0.77/1.16    ,
% 0.77/1.16     [ =( intersection( 'cross_product'( X, Y ), Z ), restrict( Z, X, Y ) ) ]
% 0.77/1.16    ,
% 0.77/1.16     [ ~( =( restrict( X, singleton( Y ), 'universal_class' ), 'null_class' )
% 0.77/1.16     ), ~( member( Y, 'domain_of'( X ) ) ) ],
% 0.77/1.16     [ ~( member( X, 'universal_class' ) ), =( restrict( Y, singleton( X ), 
% 0.77/1.16    'universal_class' ), 'null_class' ), member( X, 'domain_of'( Y ) ) ],
% 0.77/1.16     [ subclass( rotate( X ), 'cross_product'( 'cross_product'( 
% 0.77/1.16    'universal_class', 'universal_class' ), 'universal_class' ) ) ],
% 0.77/1.16     [ ~( member( 'ordered_pair'( 'ordered_pair'( X, Y ), Z ), rotate( T ) )
% 0.77/1.16     ), member( 'ordered_pair'( 'ordered_pair'( Y, Z ), X ), T ) ],
% 0.77/1.16     [ ~( member( 'ordered_pair'( 'ordered_pair'( X, Y ), Z ), T ) ), ~( 
% 0.77/1.16    member( 'ordered_pair'( 'ordered_pair'( Z, X ), Y ), 'cross_product'( 
% 0.77/1.16    'cross_product'( 'universal_class', 'universal_class' ), 
% 0.77/1.16    'universal_class' ) ) ), member( 'ordered_pair'( 'ordered_pair'( Z, X ), 
% 0.77/1.16    Y ), rotate( T ) ) ],
% 0.77/1.16     [ subclass( flip( X ), 'cross_product'( 'cross_product'( 
% 0.77/1.16    'universal_class', 'universal_class' ), 'universal_class' ) ) ],
% 0.77/1.16     [ ~( member( 'ordered_pair'( 'ordered_pair'( X, Y ), Z ), flip( T ) ) )
% 0.77/1.16    , member( 'ordered_pair'( 'ordered_pair'( Y, X ), Z ), T ) ],
% 0.77/1.16     [ ~( member( 'ordered_pair'( 'ordered_pair'( X, Y ), Z ), T ) ), ~( 
% 0.77/1.16    member( 'ordered_pair'( 'ordered_pair'( Y, X ), Z ), 'cross_product'( 
% 0.77/1.16    'cross_product'( 'universal_class', 'universal_class' ), 
% 0.77/1.16    'universal_class' ) ) ), member( 'ordered_pair'( 'ordered_pair'( Y, X ), 
% 0.77/1.16    Z ), flip( T ) ) ],
% 0.77/1.16     [ =( 'domain_of'( flip( 'cross_product'( X, 'universal_class' ) ) ), 
% 0.77/1.16    inverse( X ) ) ],
% 0.77/1.16     [ =( 'domain_of'( inverse( X ) ), 'range_of'( X ) ) ],
% 0.77/1.16     [ =( first( 'not_subclass_element'( restrict( X, Y, singleton( Z ) ), 
% 0.77/1.16    'null_class' ) ), domain( X, Y, Z ) ) ],
% 0.77/1.16     [ =( second( 'not_subclass_element'( restrict( X, singleton( Y ), Z ), 
% 0.77/1.16    'null_class' ) ), range( X, Y, Z ) ) ],
% 0.77/1.16     [ =( 'range_of'( restrict( X, Y, 'universal_class' ) ), image( X, Y ) )
% 0.77/1.16     ],
% 0.77/1.16     [ =( union( X, singleton( X ) ), successor( X ) ) ],
% 0.77/1.16     [ subclass( 'successor_relation', 'cross_product'( 'universal_class', 
% 0.77/1.16    'universal_class' ) ) ],
% 0.77/1.16     [ ~( member( 'ordered_pair'( X, Y ), 'successor_relation' ) ), =( 
% 0.77/1.16    successor( X ), Y ) ],
% 0.77/1.16     [ ~( =( successor( X ), Y ) ), ~( member( 'ordered_pair'( X, Y ), 
% 0.77/1.16    'cross_product'( 'universal_class', 'universal_class' ) ) ), member( 
% 0.77/1.16    'ordered_pair'( X, Y ), 'successor_relation' ) ],
% 0.77/1.16     [ ~( inductive( X ) ), member( 'null_class', X ) ],
% 0.77/1.16     [ ~( inductive( X ) ), subclass( image( 'successor_relation', X ), X ) ]
% 0.77/1.16    ,
% 0.77/1.16     [ ~( member( 'null_class', X ) ), ~( subclass( image( 
% 0.77/1.16    'successor_relation', X ), X ) ), inductive( X ) ],
% 0.77/1.16     [ inductive( omega ) ],
% 0.77/1.16     [ ~( inductive( X ) ), subclass( omega, X ) ],
% 0.77/1.16     [ member( omega, 'universal_class' ) ],
% 0.77/1.16     [ =( 'domain_of'( restrict( 'element_relation', 'universal_class', X ) )
% 0.77/1.16    , 'sum_class'( X ) ) ],
% 0.77/1.16     [ ~( member( X, 'universal_class' ) ), member( 'sum_class'( X ), 
% 0.77/1.16    'universal_class' ) ],
% 0.77/1.16     [ =( complement( image( 'element_relation', complement( X ) ) ), 
% 0.77/1.16    'power_class'( X ) ) ],
% 0.77/1.16     [ ~( member( X, 'universal_class' ) ), member( 'power_class'( X ), 
% 0.77/1.16    'universal_class' ) ],
% 0.77/1.16     [ subclass( compose( X, Y ), 'cross_product'( 'universal_class', 
% 0.77/1.16    'universal_class' ) ) ],
% 0.77/1.16     [ ~( member( 'ordered_pair'( X, Y ), compose( Z, T ) ) ), member( Y, 
% 0.77/1.16    image( Z, image( T, singleton( X ) ) ) ) ],
% 0.77/1.16     [ ~( member( X, image( Y, image( Z, singleton( T ) ) ) ) ), ~( member( 
% 0.77/1.16    'ordered_pair'( T, X ), 'cross_product'( 'universal_class', 
% 0.77/1.16    'universal_class' ) ) ), member( 'ordered_pair'( T, X ), compose( Y, Z )
% 0.77/1.16     ) ],
% 0.77/1.16     [ ~( 'single_valued_class'( X ) ), subclass( compose( X, inverse( X ) )
% 0.77/1.16    , 'identity_relation' ) ],
% 0.77/1.16     [ ~( subclass( compose( X, inverse( X ) ), 'identity_relation' ) ), 
% 0.77/1.16    'single_valued_class'( X ) ],
% 0.77/1.16     [ ~( function( X ) ), subclass( X, 'cross_product'( 'universal_class', 
% 0.77/1.16    'universal_class' ) ) ],
% 0.77/1.16     [ ~( function( X ) ), subclass( compose( X, inverse( X ) ), 
% 0.77/1.16    'identity_relation' ) ],
% 0.77/1.16     [ ~( subclass( X, 'cross_product'( 'universal_class', 'universal_class'
% 0.77/1.16     ) ) ), ~( subclass( compose( X, inverse( X ) ), 'identity_relation' ) )
% 0.77/1.16    , function( X ) ],
% 0.77/1.16     [ ~( function( X ) ), ~( member( Y, 'universal_class' ) ), member( image( 
% 0.77/1.16    X, Y ), 'universal_class' ) ],
% 0.77/1.16     [ =( X, 'null_class' ), member( regular( X ), X ) ],
% 0.77/1.16     [ =( X, 'null_class' ), =( intersection( X, regular( X ) ), 'null_class'
% 0.77/1.16     ) ],
% 0.77/1.16     [ =( 'sum_class'( image( X, singleton( Y ) ) ), apply( X, Y ) ) ],
% 0.77/1.16     [ function( choice ) ],
% 0.77/1.16     [ ~( member( X, 'universal_class' ) ), =( X, 'null_class' ), member( 
% 0.77/1.16    apply( choice, X ), X ) ],
% 0.77/1.16     [ ~( 'one_to_one'( X ) ), function( X ) ],
% 0.77/1.16     [ ~( 'one_to_one'( X ) ), function( inverse( X ) ) ],
% 0.77/1.16     [ ~( function( inverse( X ) ) ), ~( function( X ) ), 'one_to_one'( X ) ]
% 0.77/1.16    ,
% 0.77/1.16     [ =( intersection( 'cross_product'( 'universal_class', 'universal_class'
% 0.77/1.16     ), intersection( 'cross_product'( 'universal_class', 'universal_class' )
% 0.77/1.16    , complement( compose( complement( 'element_relation' ), inverse( 
% 0.77/1.16    'element_relation' ) ) ) ) ), 'subset_relation' ) ],
% 0.77/1.16     [ =( intersection( inverse( 'subset_relation' ), 'subset_relation' ), 
% 0.77/1.16    'identity_relation' ) ],
% 0.77/1.16     [ =( complement( 'domain_of'( intersection( X, 'identity_relation' ) ) )
% 0.77/1.16    , diagonalise( X ) ) ],
% 0.77/1.16     [ =( intersection( 'domain_of'( X ), diagonalise( compose( inverse( 
% 0.77/1.16    'element_relation' ), X ) ) ), cantor( X ) ) ],
% 0.77/1.16     [ ~( operation( X ) ), function( X ) ],
% 0.77/1.16     [ ~( operation( X ) ), =( 'cross_product'( 'domain_of'( 'domain_of'( X )
% 0.77/1.16     ), 'domain_of'( 'domain_of'( X ) ) ), 'domain_of'( X ) ) ],
% 0.77/1.16     [ ~( operation( X ) ), subclass( 'range_of'( X ), 'domain_of'( 
% 0.77/1.16    'domain_of'( X ) ) ) ],
% 0.77/1.16     [ ~( function( X ) ), ~( =( 'cross_product'( 'domain_of'( 'domain_of'( X
% 0.77/1.16     ) ), 'domain_of'( 'domain_of'( X ) ) ), 'domain_of'( X ) ) ), ~( 
% 0.77/1.16    subclass( 'range_of'( X ), 'domain_of'( 'domain_of'( X ) ) ) ), operation( 
% 0.77/1.16    X ) ],
% 0.77/1.16     [ ~( compatible( X, Y, Z ) ), function( X ) ],
% 0.77/1.16     [ ~( compatible( X, Y, Z ) ), =( 'domain_of'( 'domain_of'( Y ) ), 
% 0.77/1.16    'domain_of'( X ) ) ],
% 0.77/1.16     [ ~( compatible( X, Y, Z ) ), subclass( 'range_of'( X ), 'domain_of'( 
% 0.77/1.16    'domain_of'( Z ) ) ) ],
% 0.77/1.16     [ ~( function( X ) ), ~( =( 'domain_of'( 'domain_of'( Y ) ), 'domain_of'( 
% 0.77/1.16    X ) ) ), ~( subclass( 'range_of'( X ), 'domain_of'( 'domain_of'( Z ) ) )
% 0.77/1.16     ), compatible( X, Y, Z ) ],
% 0.77/1.16     [ ~( homomorphism( X, Y, Z ) ), operation( Y ) ],
% 0.77/1.16     [ ~( homomorphism( X, Y, Z ) ), operation( Z ) ],
% 0.77/1.16     [ ~( homomorphism( X, Y, Z ) ), compatible( X, Y, Z ) ],
% 0.77/1.16     [ ~( homomorphism( X, Y, Z ) ), ~( member( 'ordered_pair'( T, U ), 
% 0.77/1.16    'domain_of'( Y ) ) ), =( apply( Z, 'ordered_pair'( apply( X, T ), apply( 
% 0.77/1.16    X, U ) ) ), apply( X, apply( Y, 'ordered_pair'( T, U ) ) ) ) ],
% 0.77/1.16     [ ~( operation( X ) ), ~( operation( Y ) ), ~( compatible( Z, X, Y ) ), 
% 0.77/1.16    member( 'ordered_pair'( 'not_homomorphism1'( Z, X, Y ), 
% 0.77/1.16    'not_homomorphism2'( Z, X, Y ) ), 'domain_of'( X ) ), homomorphism( Z, X
% 0.77/1.16    , Y ) ],
% 0.77/1.16     [ ~( operation( X ) ), ~( operation( Y ) ), ~( compatible( Z, X, Y ) ), 
% 0.77/1.16    ~( =( apply( Y, 'ordered_pair'( apply( Z, 'not_homomorphism1'( Z, X, Y )
% 0.77/1.16     ), apply( Z, 'not_homomorphism2'( Z, X, Y ) ) ) ), apply( Z, apply( X, 
% 0.77/1.16    'ordered_pair'( 'not_homomorphism1'( Z, X, Y ), 'not_homomorphism2'( Z, X
% 0.77/1.16    , Y ) ) ) ) ) ), homomorphism( Z, X, Y ) ],
% 0.77/1.16     [ ~( member( 'ordered_pair'( X, Y ), 'cross_product'( Z, T ) ) ), member( 
% 0.77/1.16    X, 'unordered_pair'( X, Y ) ) ],
% 0.77/1.16     [ ~( member( 'ordered_pair'( X, Y ), 'cross_product'( Z, T ) ) ), member( 
% 0.77/1.16    Y, 'unordered_pair'( X, Y ) ) ],
% 0.77/1.16     [ ~( member( 'ordered_pair'( X, Y ), 'cross_product'( Z, T ) ) ), member( 
% 0.77/1.16    X, 'universal_class' ) ],
% 0.77/1.16     [ ~( member( 'ordered_pair'( X, Y ), 'cross_product'( Z, T ) ) ), member( 
% 0.77/1.16    Y, 'universal_class' ) ],
% 0.77/1.16     [ subclass( X, X ) ],
% 0.77/1.16     [ ~( subclass( X, Y ) ), ~( subclass( Y, Z ) ), subclass( X, Z ) ],
% 0.77/1.16     [ =( X, Y ), member( 'not_subclass_element'( X, Y ), X ), member( 
% 0.77/1.16    'not_subclass_element'( Y, X ), Y ) ],
% 0.77/1.16     [ ~( member( 'not_subclass_element'( X, Y ), Y ) ), =( X, Y ), member( 
% 0.77/1.16    'not_subclass_element'( Y, X ), Y ) ],
% 0.77/1.16     [ ~( member( 'not_subclass_element'( X, Y ), Y ) ), =( Y, X ), member( 
% 0.77/1.16    'not_subclass_element'( Y, X ), Y ) ],
% 0.77/1.16     [ ~( member( 'not_subclass_element'( X, Y ), Y ) ), ~( member( 
% 0.77/1.16    'not_subclass_element'( Y, X ), X ) ), =( X, Y ) ],
% 0.77/1.16     [ ~( member( X, intersection( complement( Y ), Y ) ) ) ],
% 0.77/1.16     [ ~( member( X, 'null_class' ) ) ],
% 0.77/1.16     [ subclass( 'null_class', X ) ],
% 0.77/1.16     [ ~( subclass( X, 'null_class' ) ), =( X, 'null_class' ) ],
% 0.77/1.16     [ =( X, 'null_class' ), member( 'not_subclass_element'( X, 'null_class'
% 0.77/1.16     ), X ) ],
% 0.77/1.16     [ member( 'null_class', 'universal_class' ) ],
% 0.77/1.16     [ =( 'unordered_pair'( X, Y ), 'unordered_pair'( Y, X ) ) ],
% 0.77/1.16     [ subclass( singleton( X ), 'unordered_pair'( X, Y ) ) ],
% 0.77/1.16     [ subclass( singleton( X ), 'unordered_pair'( Y, X ) ) ],
% 0.77/1.16     [ member( X, 'universal_class' ), =( 'unordered_pair'( Y, X ), singleton( 
% 0.77/1.16    Y ) ) ],
% 0.77/1.16     [ member( X, 'universal_class' ), =( 'unordered_pair'( X, Y ), singleton( 
% 0.77/1.16    Y ) ) ],
% 0.77/1.16     [ =( 'unordered_pair'( X, Y ), 'null_class' ), member( X, 
% 0.77/1.16    'universal_class' ), member( Y, 'universal_class' ) ],
% 0.77/1.16     [ ~( =( 'unordered_pair'( X, Y ), 'unordered_pair'( X, Z ) ) ), ~( 
% 0.77/1.16    member( 'ordered_pair'( Y, Z ), 'cross_product'( 'universal_class', 
% 0.77/1.16    'universal_class' ) ) ), =( Y, Z ) ],
% 0.77/1.16     [ ~( =( 'unordered_pair'( X, Y ), 'unordered_pair'( Z, Y ) ) ), ~( 
% 0.77/1.16    member( 'ordered_pair'( X, Z ), 'cross_product'( 'universal_class', 
% 0.77/1.16    'universal_class' ) ) ), =( X, Z ) ],
% 0.77/1.16     [ ~( member( X, 'universal_class' ) ), ~( =( 'unordered_pair'( X, Y ), 
% 0.77/1.16    'null_class' ) ) ],
% 0.77/1.16     [ ~( member( X, 'universal_class' ) ), ~( =( 'unordered_pair'( Y, X ), 
% 0.77/1.16    'null_class' ) ) ],
% 0.77/1.16     [ ~( member( 'ordered_pair'( X, Y ), 'cross_product'( Z, T ) ) ), ~( =( 
% 0.77/1.16    'unordered_pair'( X, Y ), 'null_class' ) ) ],
% 0.77/1.16     [ ~( member( X, Y ) ), ~( member( Z, Y ) ), subclass( 'unordered_pair'( 
% 0.77/1.16    X, Z ), Y ) ],
% 0.77/1.16     [ member( singleton( X ), 'universal_class' ) ],
% 0.77/1.16     [ member( singleton( X ), 'unordered_pair'( Y, singleton( X ) ) ) ],
% 0.77/1.16     [ ~( member( X, 'universal_class' ) ), member( X, singleton( X ) ) ]
% 0.77/1.16    ,
% 0.77/1.16     [ ~( member( X, 'universal_class' ) ), ~( =( singleton( X ), 
% 0.77/1.16    'null_class' ) ) ],
% 0.77/1.16     [ member( 'null_class', singleton( 'null_class' ) ) ],
% 0.77/1.16     [ ~( member( X, singleton( Y ) ) ), =( X, Y ) ],
% 0.77/1.16     [ member( X, 'universal_class' ), =( singleton( X ), 'null_class' ) ]
% 0.77/1.16    ,
% 0.77/1.16     [ ~( =( singleton( X ), singleton( Y ) ) ), ~( member( X, 
% 0.77/1.16    'universal_class' ) ), =( X, Y ) ],
% 0.77/1.16     [ ~( =( singleton( X ), singleton( Y ) ) ), ~( member( Y, 
% 0.77/1.16    'universal_class' ) ), =( X, Y ) ],
% 0.77/1.16     [ ~( =( 'unordered_pair'( X, Y ), singleton( Z ) ) ), ~( member( Z, 
% 0.77/1.16    'universal_class' ) ), =( Z, X ), =( Z, Y ) ],
% 0.77/1.16     [ ~( member( X, 'universal_class' ) ), member( 'member_of'( singleton( X
% 0.77/1.16     ) ), 'universal_class' ) ],
% 0.77/1.16     [ ~( member( X, 'universal_class' ) ), =( singleton( 'member_of'( 
% 0.77/1.16    singleton( X ) ) ), singleton( X ) ) ],
% 0.77/1.16     [ member( 'member_of'( X ), 'universal_class' ), =( 'member_of'( X ), X
% 0.77/1.16     ) ],
% 0.77/1.16     [ =( singleton( 'member_of'( X ) ), X ), =( 'member_of'( X ), X ) ],
% 0.77/1.16     [ ~( member( X, 'universal_class' ) ), =( 'member_of'( singleton( X ) )
% 0.77/1.16    , X ) ],
% 0.77/1.16     [ member( 'member_of1'( X ), 'universal_class' ), =( 'member_of'( X ), X
% 0.77/1.16     ) ],
% 0.77/1.16     [ =( singleton( 'member_of1'( X ) ), X ), =( 'member_of'( X ), X ) ]
% 0.77/1.16    ,
% 0.77/1.16     [ ~( =( singleton( 'member_of'( X ) ), X ) ), member( X, 
% 0.77/1.16    'universal_class' ) ],
% 0.77/1.16     [ ~( =( singleton( 'member_of'( X ) ), X ) ), ~( member( Y, X ) ), =( 
% 0.77/1.16    'member_of'( X ), Y ) ],
% 0.77/1.16     [ ~( member( X, Y ) ), subclass( singleton( X ), Y ) ],
% 0.77/1.16     [ ~( subclass( X, singleton( Y ) ) ), =( X, 'null_class' ), =( singleton( 
% 0.77/1.16    Y ), X ) ],
% 0.77/1.16     [ member( 'not_subclass_element'( intersection( complement( singleton( 
% 0.77/1.16    'not_subclass_element'( X, 'null_class' ) ) ), X ), 'null_class' ), 
% 0.77/1.16    intersection( complement( singleton( 'not_subclass_element'( X, 
% 0.77/1.16    'null_class' ) ) ), X ) ), =( singleton( 'not_subclass_element'( X, 
% 0.77/1.16    'null_class' ) ), X ), =( X, 'null_class' ) ],
% 0.77/1.16     [ member( 'not_subclass_element'( intersection( complement( singleton( 
% 0.77/1.16    'not_subclass_element'( X, 'null_class' ) ) ), X ), 'null_class' ), X ), 
% 0.77/1.16    =( singleton( 'not_subclass_element'( X, 'null_class' ) ), X ), =( X, 
% 0.77/1.16    'null_class' ) ],
% 0.77/1.16     [ ~( =( 'not_subclass_element'( intersection( complement( singleton( 
% 0.77/1.16    'not_subclass_element'( X, 'null_class' ) ) ), X ), 'null_class' ), 
% 0.77/1.16    'not_subclass_element'( X, 'null_class' ) ) ), =( singleton( 
% 0.77/1.16    'not_subclass_element'( X, 'null_class' ) ), X ), =( X, 'null_class' ) ]
% 0.77/1.16    ,
% 0.77/1.16     [ =( 'unordered_pair'( X, Y ), union( singleton( X ), singleton( Y ) ) )
% 0.77/1.16     ],
% 0.77/1.16     [ member( 'ordered_pair'( X, Y ), 'universal_class' ) ],
% 0.77/1.16     [ member( singleton( X ), 'ordered_pair'( X, Y ) ) ],
% 0.77/1.16     [ member( 'unordered_pair'( X, singleton( Y ) ), 'ordered_pair'( X, Y )
% 0.77/1.16     ) ],
% 0.77/1.16     [ =( 'unordered_pair'( singleton( X ), 'unordered_pair'( X, 'null_class'
% 0.77/1.16     ) ), 'ordered_pair'( X, Y ) ), member( Y, 'universal_class' ) ],
% 0.77/1.16     [ ~( member( X, 'universal_class' ) ), =( 'unordered_pair'( 'null_class'
% 0.77/1.16    , singleton( singleton( X ) ) ), 'ordered_pair'( Y, X ) ), member( Y, 
% 0.77/1.16    'universal_class' ) ],
% 0.77/1.16     [ =( 'unordered_pair'( 'null_class', singleton( 'null_class' ) ), 
% 0.77/1.16    'ordered_pair'( X, Y ) ), member( X, 'universal_class' ), member( Y, 
% 0.77/1.16    'universal_class' ) ],
% 0.77/1.16     [ ~( =( 'ordered_pair'( X, Y ), 'ordered_pair'( Z, T ) ) ), ~( member( X
% 0.77/1.16    , 'universal_class' ) ), =( X, Z ) ],
% 0.77/1.16     [ ~( =( 'ordered_pair'( X, Y ), 'ordered_pair'( Z, T ) ) ), ~( member( Y
% 0.77/1.16    , 'universal_class' ) ), =( Y, T ) ],
% 0.77/1.16     [ ~( member( 'ordered_pair'( X, Y ), 'cross_product'( 'universal_class'
% 0.77/1.16    , 'universal_class' ) ) ), member( 'ordered_pair'( first( 'ordered_pair'( 
% 0.77/1.16    X, Y ) ), second( 'ordered_pair'( X, Y ) ) ), 'cross_product'( 
% 0.77/1.16    'universal_class', 'universal_class' ) ) ],
% 0.77/1.16     [ member( 'ordered_pair'( first( X ), second( X ) ), 'cross_product'( 
% 0.77/1.16    'universal_class', 'universal_class' ) ), =( first( X ), X ) ],
% 6.69/7.09     [ member( 'ordered_pair'( first( X ), second( X ) ), 'cross_product'( 
% 6.69/7.09    'universal_class', 'universal_class' ) ), =( second( X ), X ) ],
% 6.69/7.09     [ =( 'ordered_pair'( first( X ), second( X ) ), X ), =( first( X ), X )
% 6.69/7.09     ],
% 6.69/7.09     [ =( 'ordered_pair'( first( X ), second( X ) ), X ), =( second( X ), X )
% 6.69/7.09     ],
% 6.69/7.09     [ ~( member( 'ordered_pair'( X, Y ), 'cross_product'( 'universal_class'
% 6.69/7.09    , 'universal_class' ) ) ), =( first( 'ordered_pair'( X, Y ) ), X ) ],
% 6.69/7.09     [ ~( member( 'ordered_pair'( X, Y ), 'cross_product'( 'universal_class'
% 6.69/7.09    , 'universal_class' ) ) ), =( second( 'ordered_pair'( X, Y ) ), Y ) ]
% 6.69/7.09    ,
% 6.69/7.09     [ member( 'ordered_pair'( first( X ), second( X ) ), 'cross_product'( 
% 6.69/7.09    'universal_class', 'universal_class' ) ), =( first( X ), X ) ],
% 6.69/7.09     [ member( 'ordered_pair'( first( X ), second( X ) ), 'cross_product'( 
% 6.69/7.09    'universal_class', 'universal_class' ) ), =( second( X ), X ) ],
% 6.69/7.09     [ =( 'ordered_pair'( first( X ), second( X ) ), X ), =( first( X ), X )
% 6.69/7.09     ],
% 6.69/7.09     [ =( 'ordered_pair'( first( X ), second( X ) ), X ), =( second( X ), X )
% 6.69/7.09     ],
% 6.69/7.09     [ ~( =( 'ordered_pair'( first( X ), second( X ) ), X ) ), member( X, 
% 6.69/7.09    'universal_class' ) ],
% 6.69/7.09     [ ~( member( X, 'cross_product'( 'universal_class', 'universal_class' )
% 6.69/7.09     ) ), member( X, 'universal_class' ) ],
% 6.69/7.09     [ ~( member( x, 'universal_class' ) ) ],
% 6.69/7.09     [ ~( =( second( 'ordered_pair'( x, y ) ), 'ordered_pair'( x, y ) ) ) ]
% 6.69/7.09  ] .
% 6.69/7.09  
% 6.69/7.09  
% 6.69/7.09  percentage equality = 0.315152, percentage horn = 0.803681
% 6.69/7.09  This is a problem with some equality
% 6.69/7.09  
% 6.69/7.09  
% 6.69/7.09  
% 6.69/7.09  Options Used:
% 6.69/7.09  
% 6.69/7.09  useres =            1
% 6.69/7.09  useparamod =        1
% 6.69/7.09  useeqrefl =         1
% 6.69/7.09  useeqfact =         1
% 6.69/7.09  usefactor =         1
% 6.69/7.09  usesimpsplitting =  0
% 6.69/7.09  usesimpdemod =      5
% 6.69/7.09  usesimpres =        3
% 6.69/7.09  
% 6.69/7.09  resimpinuse      =  1000
% 6.69/7.09  resimpclauses =     20000
% 6.69/7.09  substype =          eqrewr
% 6.69/7.09  backwardsubs =      1
% 6.69/7.09  selectoldest =      5
% 6.69/7.09  
% 6.69/7.09  litorderings [0] =  split
% 6.69/7.09  litorderings [1] =  extend the termordering, first sorting on arguments
% 6.69/7.09  
% 6.69/7.09  termordering =      kbo
% 6.69/7.09  
% 6.69/7.09  litapriori =        0
% 6.69/7.09  termapriori =       1
% 6.69/7.09  litaposteriori =    0
% 6.69/7.09  termaposteriori =   0
% 6.69/7.09  demodaposteriori =  0
% 6.69/7.09  ordereqreflfact =   0
% 6.69/7.09  
% 6.69/7.09  litselect =         negord
% 6.69/7.09  
% 6.69/7.09  maxweight =         15
% 6.69/7.09  maxdepth =          30000
% 6.69/7.09  maxlength =         115
% 6.69/7.09  maxnrvars =         195
% 6.69/7.09  excuselevel =       1
% 6.69/7.09  increasemaxweight = 1
% 6.69/7.09  
% 6.69/7.09  maxselected =       10000000
% 6.69/7.09  maxnrclauses =      10000000
% 6.69/7.09  
% 6.69/7.09  showgenerated =    0
% 6.69/7.09  showkept =         0
% 6.69/7.09  showselected =     0
% 6.69/7.09  showdeleted =      0
% 6.69/7.09  showresimp =       1
% 6.69/7.09  showstatus =       2000
% 6.69/7.09  
% 6.69/7.09  prologoutput =     1
% 6.69/7.09  nrgoals =          5000000
% 6.69/7.09  totalproof =       1
% 6.69/7.09  
% 6.69/7.09  Symbols occurring in the translation:
% 6.69/7.09  
% 6.69/7.09  {}  [0, 0]      (w:1, o:2, a:1, s:1, b:0), 
% 6.69/7.09  .  [1, 2]      (w:1, o:58, a:1, s:1, b:0), 
% 6.69/7.09  !  [4, 1]      (w:0, o:31, a:1, s:1, b:0), 
% 6.69/7.09  =  [13, 2]      (w:1, o:0, a:0, s:1, b:0), 
% 6.69/7.09  ==>  [14, 2]      (w:1, o:0, a:0, s:1, b:0), 
% 6.69/7.09  subclass  [41, 2]      (w:1, o:83, a:1, s:1, b:0), 
% 6.69/7.09  member  [43, 2]      (w:1, o:84, a:1, s:1, b:0), 
% 6.69/7.09  'not_subclass_element'  [44, 2]      (w:1, o:85, a:1, s:1, b:0), 
% 6.69/7.09  'universal_class'  [45, 0]      (w:1, o:21, a:1, s:1, b:0), 
% 6.69/7.09  'unordered_pair'  [46, 2]      (w:1, o:86, a:1, s:1, b:0), 
% 6.69/7.09  singleton  [47, 1]      (w:1, o:39, a:1, s:1, b:0), 
% 6.69/7.09  'ordered_pair'  [48, 2]      (w:1, o:87, a:1, s:1, b:0), 
% 6.69/7.09  'cross_product'  [50, 2]      (w:1, o:88, a:1, s:1, b:0), 
% 6.69/7.09  first  [52, 1]      (w:1, o:40, a:1, s:1, b:0), 
% 6.69/7.09  second  [53, 1]      (w:1, o:41, a:1, s:1, b:0), 
% 6.69/7.09  'element_relation'  [54, 0]      (w:1, o:25, a:1, s:1, b:0), 
% 6.69/7.09  intersection  [55, 2]      (w:1, o:90, a:1, s:1, b:0), 
% 6.69/7.09  complement  [56, 1]      (w:1, o:42, a:1, s:1, b:0), 
% 6.69/7.09  union  [57, 2]      (w:1, o:91, a:1, s:1, b:0), 
% 6.69/7.09  'symmetric_difference'  [58, 2]      (w:1, o:92, a:1, s:1, b:0), 
% 6.69/7.09  restrict  [60, 3]      (w:1, o:95, a:1, s:1, b:0), 
% 6.69/7.09  'null_class'  [61, 0]      (w:1, o:26, a:1, s:1, b:0), 
% 6.69/7.09  'domain_of'  [62, 1]      (w:1, o:44, a:1, s:1, b:0), 
% 6.69/7.09  rotate  [63, 1]      (w:1, o:36, a:1, s:1, b:0), 
% 6.69/7.09  flip  [65, 1]      (w:1, o:45, a:1, s:1, b:0), 
% 6.69/7.09  inverse  [66, 1]      (w:1, o:46, a:1, s:1, b:0), 
% 6.69/7.09  'range_of'  [67, 1]      (w:1, o:37, a:1, s:1, b:0), 
% 6.69/7.09  domain  [68, 3]      (w:1, o:97, a:1, s:1, b:0), 
% 6.69/7.09  range  [69, 3]      (w:1, o:98, a:1, s:1, b:0), 
% 6.69/7.09  image  [70, 2]      (w:1, o:89, a:1, s:1, b:0), 
% 6.69/7.09  successor  [71, 1]      (w:1, o:47, a:1, s:1, b:0), 
% 6.69/7.09  'successor_relation'  [72, 0]      (w:1, o:6, a:1, s:1, b:0), 
% 6.69/7.09  inductive  [73, 1]      (w:1, o:48, a:1, s:1, b:0), 
% 6.69/7.09  omega  [74, 0]      (w:1, o:9, a:1, s:1, b:0), 
% 6.69/7.09  'sum_class'  [75, 1]      (w:1, o:49, a:1, s:1, b:0), 
% 6.69/7.09  'power_class'  [76, 1]      (w:1, o:52, a:1, s:1, b:0), 
% 6.69/7.09  compose  [78, 2]      (w:1, o:93, a:1, s:1, b:0), 
% 6.69/7.09  'single_valued_class'  [79, 1]      (w:1, o:53, a:1, s:1, b:0), 
% 6.69/7.09  'identity_relation'  [80, 0]      (w:1, o:27, a:1, s:1, b:0), 
% 6.69/7.09  function  [82, 1]      (w:1, o:54, a:1, s:1, b:0), 
% 6.69/7.09  regular  [83, 1]      (w:1, o:38, a:1, s:1, b:0), 
% 6.69/7.09  apply  [84, 2]      (w:1, o:94, a:1, s:1, b:0), 
% 6.69/7.09  choice  [85, 0]      (w:1, o:28, a:1, s:1, b:0), 
% 6.69/7.09  'one_to_one'  [86, 1]      (w:1, o:50, a:1, s:1, b:0), 
% 6.69/7.09  'subset_relation'  [87, 0]      (w:1, o:5, a:1, s:1, b:0), 
% 6.69/7.09  diagonalise  [88, 1]      (w:1, o:55, a:1, s:1, b:0), 
% 6.69/7.09  cantor  [89, 1]      (w:1, o:43, a:1, s:1, b:0), 
% 6.69/7.09  operation  [90, 1]      (w:1, o:51, a:1, s:1, b:0), 
% 6.69/7.09  compatible  [94, 3]      (w:1, o:96, a:1, s:1, b:0), 
% 6.69/7.09  homomorphism  [95, 3]      (w:1, o:99, a:1, s:1, b:0), 
% 6.69/7.09  'not_homomorphism1'  [96, 3]      (w:1, o:100, a:1, s:1, b:0), 
% 6.69/7.09  'not_homomorphism2'  [97, 3]      (w:1, o:101, a:1, s:1, b:0), 
% 6.69/7.09  'member_of'  [98, 1]      (w:1, o:56, a:1, s:1, b:0), 
% 6.69/7.09  'member_of1'  [99, 1]      (w:1, o:57, a:1, s:1, b:0), 
% 6.69/7.09  x  [100, 0]      (w:1, o:29, a:1, s:1, b:0), 
% 6.69/7.09  y  [101, 0]      (w:1, o:30, a:1, s:1, b:0).
% 6.69/7.09  
% 6.69/7.09  
% 6.69/7.09  Starting Search:
% 6.69/7.09  
% 6.69/7.09  Resimplifying inuse:
% 6.69/7.09  Done
% 6.69/7.09  
% 6.69/7.09  
% 6.69/7.09  Intermediate Status:
% 6.69/7.09  Generated:    3957
% 6.69/7.09  Kept:         2016
% 6.69/7.09  Inuse:        121
% 6.69/7.09  Deleted:      3
% 6.69/7.09  Deletedinuse: 3
% 6.69/7.09  
% 6.69/7.09  Resimplifying inuse:
% 6.69/7.09  Done
% 6.69/7.09  
% 6.69/7.09  Resimplifying inuse:
% 6.69/7.09  Done
% 6.69/7.09  
% 6.69/7.09  
% 6.69/7.09  Intermediate Status:
% 6.69/7.09  Generated:    9357
% 6.69/7.09  Kept:         4044
% 6.69/7.09  Inuse:        201
% 6.69/7.09  Deleted:      8
% 6.69/7.09  Deletedinuse: 8
% 6.69/7.09  
% 6.69/7.09  Resimplifying inuse:
% 6.69/7.09  Done
% 6.69/7.09  
% 6.69/7.09  Resimplifying inuse:
% 6.69/7.09  Done
% 6.69/7.09  
% 6.69/7.09  
% 6.69/7.09  Intermediate Status:
% 6.69/7.09  Generated:    15276
% 6.69/7.09  Kept:         6339
% 6.69/7.09  Inuse:        285
% 6.69/7.09  Deleted:      12
% 6.69/7.09  Deletedinuse: 11
% 6.69/7.09  
% 6.69/7.09  Resimplifying inuse:
% 6.69/7.09  Done
% 6.69/7.09  
% 6.69/7.09  Resimplifying inuse:
% 6.69/7.09  Done
% 6.69/7.09  
% 6.69/7.09  
% 6.69/7.09  Intermediate Status:
% 6.69/7.09  Generated:    21181
% 6.69/7.09  Kept:         8374
% 6.69/7.09  Inuse:        343
% 6.69/7.09  Deleted:      62
% 6.69/7.09  Deletedinuse: 58
% 6.69/7.09  
% 6.69/7.09  Resimplifying inuse:
% 6.69/7.09  Done
% 6.69/7.09  
% 6.69/7.09  Resimplifying inuse:
% 6.69/7.09  Done
% 6.69/7.09  
% 6.69/7.09  
% 6.69/7.09  Intermediate Status:
% 6.69/7.09  Generated:    28791
% 6.69/7.09  Kept:         10800
% 6.69/7.09  Inuse:        395
% 6.69/7.09  Deleted:      79
% 6.69/7.09  Deletedinuse: 63
% 6.69/7.09  
% 6.69/7.09  Resimplifying inuse:
% 6.69/7.09  Done
% 6.69/7.09  
% 6.69/7.09  Resimplifying inuse:
% 6.69/7.09  Done
% 6.69/7.09  
% 6.69/7.09  
% 6.69/7.09  Intermediate Status:
% 6.69/7.09  Generated:    38205
% 6.69/7.09  Kept:         12825
% 6.69/7.09  Inuse:        444
% 6.69/7.09  Deleted:      81
% 6.69/7.09  Deletedinuse: 64
% 6.69/7.09  
% 6.69/7.09  Resimplifying inuse:
% 6.69/7.09  Done
% 6.69/7.09  
% 6.69/7.09  Resimplifying inuse:
% 6.69/7.09  Done
% 6.69/7.09  
% 6.69/7.09  
% 6.69/7.09  Intermediate Status:
% 6.69/7.09  Generated:    47915
% 6.69/7.09  Kept:         16581
% 6.69/7.09  Inuse:        488
% 6.69/7.09  Deleted:      93
% 6.69/7.09  Deletedinuse: 75
% 6.69/7.09  
% 6.69/7.09  Resimplifying inuse:
% 6.69/7.09  Done
% 6.69/7.09  
% 6.69/7.09  Resimplifying inuse:
% 6.69/7.09  Done
% 6.69/7.09  
% 6.69/7.09  
% 6.69/7.09  Intermediate Status:
% 6.69/7.09  Generated:    61706
% 6.69/7.09  Kept:         20421
% 6.69/7.09  Inuse:        503
% 6.69/7.09  Deleted:      97
% 6.69/7.09  Deletedinuse: 79
% 6.69/7.09  
% 6.69/7.09  Resimplifying inuse:
% 6.69/7.09  Done
% 6.69/7.09  
% 6.69/7.09  Resimplifying clauses:
% 6.69/7.09  Done
% 6.69/7.09  
% 6.69/7.09  Resimplifying inuse:
% 6.69/7.09  Done
% 6.69/7.09  
% 6.69/7.09  
% 6.69/7.09  Intermediate Status:
% 6.69/7.09  Generated:    72189
% 6.69/7.09  Kept:         22613
% 6.69/7.09  Inuse:        541
% 6.69/7.09  Deleted:      2234
% 6.69/7.09  Deletedinuse: 90
% 6.69/7.09  
% 6.69/7.09  Resimplifying inuse:
% 6.69/7.09  Done
% 6.69/7.09  
% 6.69/7.09  Resimplifying inuse:
% 6.69/7.09  Done
% 6.69/7.09  
% 6.69/7.09  
% 6.69/7.09  Intermediate Status:
% 6.69/7.09  Generated:    84938
% 6.69/7.09  Kept:         25710
% 6.69/7.09  Inuse:        567
% 6.69/7.09  Deleted:      2238
% 6.69/7.09  Deletedinuse: 90
% 6.69/7.09  
% 6.69/7.09  Resimplifying inuse:
% 6.69/7.09  Done
% 6.69/7.09  
% 6.69/7.09  Resimplifying inuse:
% 6.69/7.09  Done
% 6.69/7.09  
% 6.69/7.09  
% 6.69/7.09  Intermediate Status:
% 6.69/7.09  Generated:    91091
% 6.69/7.09  Kept:         27759
% 6.69/7.09  Inuse:        577
% 6.69/7.09  Deleted:      2240
% 6.69/7.09  Deletedinuse: 92
% 6.69/7.09  
% 6.69/7.09  Resimplifying inuse:
% 6.69/7.09  Done
% 6.69/7.09  
% 6.69/7.09  
% 6.69/7.09  Bliksems!, er is een bewijs:
% 6.69/7.09  % SZS status Unsatisfiable
% 6.69/7.09  % SZS output start Refutation
% 6.69/7.09  
% 6.69/7.09  clause( 0, [ ~( subclass( X, Y ) ), ~( member( Z, X ) ), member( Z, Y ) ]
% 6.69/7.09     )
% 6.69/7.09  .
% 6.69/7.09  clause( 3, [ subclass( X, 'universal_class' ) ] )
% 6.69/7.09  .
% 6.69/7.09  clause( 12, [ ~( member( 'ordered_pair'( X, Y ), 'cross_product'( Z, T ) )
% 6.69/7.09     ), member( X, Z ) ] )
% 6.69/7.09  .
% 6.69/7.09  clause( 153, [ =( 'ordered_pair'( first( X ), second( X ) ), X ), =( second( 
% 6.69/7.09    X ), X ) ] )
% 6.69/7.09  .
% 6.69/7.09  clause( 157, [ =( second( X ), X ), member( X, 'cross_product'( 
% 6.69/7.09    'universal_class', 'universal_class' ) ) ] )
% 6.69/7.09  .
% 6.69/7.09  clause( 160, [ ~( member( x, 'universal_class' ) ) ] )
% 6.69/7.09  .
% 6.69/7.09  clause( 161, [ ~( =( second( 'ordered_pair'( x, y ) ), 'ordered_pair'( x, y
% 6.69/7.09     ) ) ) ] )
% 6.69/7.09  .
% 6.69/7.09  clause( 180, [ ~( member( x, X ) ) ] )
% 6.69/7.09  .
% 6.69/7.09  clause( 614, [ ~( member( 'ordered_pair'( x, X ), 'cross_product'( Y, Z ) )
% 6.69/7.09     ) ] )
% 6.69/7.09  .
% 6.69/7.09  clause( 28649, [] )
% 6.69/7.09  .
% 6.69/7.09  
% 6.69/7.09  
% 6.69/7.09  % SZS output end Refutation
% 6.69/7.09  found a proof!
% 6.69/7.09  
% 6.69/7.09  % ABCDEFGHIJKLMNOPQRSTUVWXYZ
% 6.69/7.09  
% 6.69/7.09  initialclauses(
% 6.69/7.09  [ clause( 28651, [ ~( subclass( X, Y ) ), ~( member( Z, X ) ), member( Z, Y
% 6.69/7.09     ) ] )
% 6.69/7.09  , clause( 28652, [ member( 'not_subclass_element'( X, Y ), X ), subclass( X
% 6.69/7.09    , Y ) ] )
% 6.69/7.09  , clause( 28653, [ ~( member( 'not_subclass_element'( X, Y ), Y ) ), 
% 6.69/7.09    subclass( X, Y ) ] )
% 6.69/7.09  , clause( 28654, [ subclass( X, 'universal_class' ) ] )
% 6.69/7.09  , clause( 28655, [ ~( =( X, Y ) ), subclass( X, Y ) ] )
% 6.69/7.09  , clause( 28656, [ ~( =( X, Y ) ), subclass( Y, X ) ] )
% 6.69/7.09  , clause( 28657, [ ~( subclass( X, Y ) ), ~( subclass( Y, X ) ), =( X, Y )
% 6.69/7.09     ] )
% 6.69/7.09  , clause( 28658, [ ~( member( X, 'unordered_pair'( Y, Z ) ) ), =( X, Y ), 
% 6.69/7.09    =( X, Z ) ] )
% 6.69/7.09  , clause( 28659, [ ~( member( X, 'universal_class' ) ), member( X, 
% 6.69/7.09    'unordered_pair'( X, Y ) ) ] )
% 6.69/7.09  , clause( 28660, [ ~( member( X, 'universal_class' ) ), member( X, 
% 6.69/7.09    'unordered_pair'( Y, X ) ) ] )
% 6.69/7.09  , clause( 28661, [ member( 'unordered_pair'( X, Y ), 'universal_class' ) ]
% 6.69/7.09     )
% 6.69/7.09  , clause( 28662, [ =( 'unordered_pair'( X, X ), singleton( X ) ) ] )
% 6.69/7.09  , clause( 28663, [ =( 'unordered_pair'( singleton( X ), 'unordered_pair'( X
% 6.69/7.09    , singleton( Y ) ) ), 'ordered_pair'( X, Y ) ) ] )
% 6.69/7.09  , clause( 28664, [ ~( member( 'ordered_pair'( X, Y ), 'cross_product'( Z, T
% 6.69/7.09     ) ) ), member( X, Z ) ] )
% 6.69/7.09  , clause( 28665, [ ~( member( 'ordered_pair'( X, Y ), 'cross_product'( Z, T
% 6.69/7.09     ) ) ), member( Y, T ) ] )
% 6.69/7.09  , clause( 28666, [ ~( member( X, Y ) ), ~( member( Z, T ) ), member( 
% 6.69/7.09    'ordered_pair'( X, Z ), 'cross_product'( Y, T ) ) ] )
% 6.69/7.09  , clause( 28667, [ ~( member( X, 'cross_product'( Y, Z ) ) ), =( 
% 6.69/7.09    'ordered_pair'( first( X ), second( X ) ), X ) ] )
% 6.69/7.09  , clause( 28668, [ subclass( 'element_relation', 'cross_product'( 
% 6.69/7.09    'universal_class', 'universal_class' ) ) ] )
% 6.69/7.09  , clause( 28669, [ ~( member( 'ordered_pair'( X, Y ), 'element_relation' )
% 6.69/7.09     ), member( X, Y ) ] )
% 6.69/7.09  , clause( 28670, [ ~( member( 'ordered_pair'( X, Y ), 'cross_product'( 
% 6.69/7.09    'universal_class', 'universal_class' ) ) ), ~( member( X, Y ) ), member( 
% 6.69/7.09    'ordered_pair'( X, Y ), 'element_relation' ) ] )
% 6.69/7.09  , clause( 28671, [ ~( member( X, intersection( Y, Z ) ) ), member( X, Y ) ]
% 6.69/7.09     )
% 6.69/7.09  , clause( 28672, [ ~( member( X, intersection( Y, Z ) ) ), member( X, Z ) ]
% 6.69/7.09     )
% 6.69/7.09  , clause( 28673, [ ~( member( X, Y ) ), ~( member( X, Z ) ), member( X, 
% 6.69/7.09    intersection( Y, Z ) ) ] )
% 6.69/7.09  , clause( 28674, [ ~( member( X, complement( Y ) ) ), ~( member( X, Y ) ) ]
% 6.69/7.09     )
% 6.69/7.09  , clause( 28675, [ ~( member( X, 'universal_class' ) ), member( X, 
% 6.69/7.09    complement( Y ) ), member( X, Y ) ] )
% 6.69/7.09  , clause( 28676, [ =( complement( intersection( complement( X ), complement( 
% 6.69/7.09    Y ) ) ), union( X, Y ) ) ] )
% 6.69/7.09  , clause( 28677, [ =( intersection( complement( intersection( X, Y ) ), 
% 6.69/7.09    complement( intersection( complement( X ), complement( Y ) ) ) ), 
% 6.69/7.09    'symmetric_difference'( X, Y ) ) ] )
% 6.69/7.09  , clause( 28678, [ =( intersection( X, 'cross_product'( Y, Z ) ), restrict( 
% 6.69/7.09    X, Y, Z ) ) ] )
% 6.69/7.09  , clause( 28679, [ =( intersection( 'cross_product'( X, Y ), Z ), restrict( 
% 6.69/7.09    Z, X, Y ) ) ] )
% 6.69/7.09  , clause( 28680, [ ~( =( restrict( X, singleton( Y ), 'universal_class' ), 
% 6.69/7.09    'null_class' ) ), ~( member( Y, 'domain_of'( X ) ) ) ] )
% 6.69/7.09  , clause( 28681, [ ~( member( X, 'universal_class' ) ), =( restrict( Y, 
% 6.69/7.09    singleton( X ), 'universal_class' ), 'null_class' ), member( X, 
% 6.69/7.09    'domain_of'( Y ) ) ] )
% 6.69/7.09  , clause( 28682, [ subclass( rotate( X ), 'cross_product'( 'cross_product'( 
% 6.69/7.09    'universal_class', 'universal_class' ), 'universal_class' ) ) ] )
% 6.69/7.09  , clause( 28683, [ ~( member( 'ordered_pair'( 'ordered_pair'( X, Y ), Z ), 
% 6.69/7.09    rotate( T ) ) ), member( 'ordered_pair'( 'ordered_pair'( Y, Z ), X ), T )
% 6.69/7.09     ] )
% 6.69/7.09  , clause( 28684, [ ~( member( 'ordered_pair'( 'ordered_pair'( X, Y ), Z ), 
% 6.69/7.09    T ) ), ~( member( 'ordered_pair'( 'ordered_pair'( Z, X ), Y ), 
% 6.69/7.09    'cross_product'( 'cross_product'( 'universal_class', 'universal_class' )
% 6.69/7.09    , 'universal_class' ) ) ), member( 'ordered_pair'( 'ordered_pair'( Z, X )
% 6.69/7.09    , Y ), rotate( T ) ) ] )
% 6.69/7.09  , clause( 28685, [ subclass( flip( X ), 'cross_product'( 'cross_product'( 
% 6.69/7.09    'universal_class', 'universal_class' ), 'universal_class' ) ) ] )
% 6.69/7.09  , clause( 28686, [ ~( member( 'ordered_pair'( 'ordered_pair'( X, Y ), Z ), 
% 6.69/7.09    flip( T ) ) ), member( 'ordered_pair'( 'ordered_pair'( Y, X ), Z ), T ) ]
% 6.69/7.09     )
% 6.69/7.09  , clause( 28687, [ ~( member( 'ordered_pair'( 'ordered_pair'( X, Y ), Z ), 
% 6.69/7.09    T ) ), ~( member( 'ordered_pair'( 'ordered_pair'( Y, X ), Z ), 
% 6.69/7.09    'cross_product'( 'cross_product'( 'universal_class', 'universal_class' )
% 6.69/7.09    , 'universal_class' ) ) ), member( 'ordered_pair'( 'ordered_pair'( Y, X )
% 6.69/7.09    , Z ), flip( T ) ) ] )
% 6.69/7.09  , clause( 28688, [ =( 'domain_of'( flip( 'cross_product'( X, 
% 6.69/7.09    'universal_class' ) ) ), inverse( X ) ) ] )
% 6.69/7.09  , clause( 28689, [ =( 'domain_of'( inverse( X ) ), 'range_of'( X ) ) ] )
% 6.69/7.09  , clause( 28690, [ =( first( 'not_subclass_element'( restrict( X, Y, 
% 6.69/7.09    singleton( Z ) ), 'null_class' ) ), domain( X, Y, Z ) ) ] )
% 6.69/7.09  , clause( 28691, [ =( second( 'not_subclass_element'( restrict( X, 
% 6.69/7.09    singleton( Y ), Z ), 'null_class' ) ), range( X, Y, Z ) ) ] )
% 6.69/7.09  , clause( 28692, [ =( 'range_of'( restrict( X, Y, 'universal_class' ) ), 
% 6.69/7.09    image( X, Y ) ) ] )
% 6.69/7.09  , clause( 28693, [ =( union( X, singleton( X ) ), successor( X ) ) ] )
% 6.69/7.09  , clause( 28694, [ subclass( 'successor_relation', 'cross_product'( 
% 6.69/7.09    'universal_class', 'universal_class' ) ) ] )
% 6.69/7.09  , clause( 28695, [ ~( member( 'ordered_pair'( X, Y ), 'successor_relation'
% 6.69/7.09     ) ), =( successor( X ), Y ) ] )
% 6.69/7.09  , clause( 28696, [ ~( =( successor( X ), Y ) ), ~( member( 'ordered_pair'( 
% 6.69/7.09    X, Y ), 'cross_product'( 'universal_class', 'universal_class' ) ) ), 
% 6.69/7.09    member( 'ordered_pair'( X, Y ), 'successor_relation' ) ] )
% 6.69/7.09  , clause( 28697, [ ~( inductive( X ) ), member( 'null_class', X ) ] )
% 6.69/7.09  , clause( 28698, [ ~( inductive( X ) ), subclass( image( 
% 6.69/7.09    'successor_relation', X ), X ) ] )
% 6.69/7.09  , clause( 28699, [ ~( member( 'null_class', X ) ), ~( subclass( image( 
% 6.69/7.09    'successor_relation', X ), X ) ), inductive( X ) ] )
% 6.69/7.09  , clause( 28700, [ inductive( omega ) ] )
% 6.69/7.09  , clause( 28701, [ ~( inductive( X ) ), subclass( omega, X ) ] )
% 6.69/7.09  , clause( 28702, [ member( omega, 'universal_class' ) ] )
% 6.69/7.09  , clause( 28703, [ =( 'domain_of'( restrict( 'element_relation', 
% 6.69/7.09    'universal_class', X ) ), 'sum_class'( X ) ) ] )
% 6.69/7.09  , clause( 28704, [ ~( member( X, 'universal_class' ) ), member( 'sum_class'( 
% 6.69/7.09    X ), 'universal_class' ) ] )
% 6.69/7.09  , clause( 28705, [ =( complement( image( 'element_relation', complement( X
% 6.69/7.09     ) ) ), 'power_class'( X ) ) ] )
% 6.69/7.09  , clause( 28706, [ ~( member( X, 'universal_class' ) ), member( 
% 6.69/7.09    'power_class'( X ), 'universal_class' ) ] )
% 6.69/7.09  , clause( 28707, [ subclass( compose( X, Y ), 'cross_product'( 
% 6.69/7.09    'universal_class', 'universal_class' ) ) ] )
% 6.69/7.09  , clause( 28708, [ ~( member( 'ordered_pair'( X, Y ), compose( Z, T ) ) ), 
% 6.69/7.09    member( Y, image( Z, image( T, singleton( X ) ) ) ) ] )
% 6.69/7.09  , clause( 28709, [ ~( member( X, image( Y, image( Z, singleton( T ) ) ) ) )
% 6.69/7.09    , ~( member( 'ordered_pair'( T, X ), 'cross_product'( 'universal_class', 
% 6.69/7.09    'universal_class' ) ) ), member( 'ordered_pair'( T, X ), compose( Y, Z )
% 6.69/7.09     ) ] )
% 6.69/7.09  , clause( 28710, [ ~( 'single_valued_class'( X ) ), subclass( compose( X, 
% 6.69/7.09    inverse( X ) ), 'identity_relation' ) ] )
% 6.69/7.09  , clause( 28711, [ ~( subclass( compose( X, inverse( X ) ), 
% 6.69/7.09    'identity_relation' ) ), 'single_valued_class'( X ) ] )
% 6.69/7.09  , clause( 28712, [ ~( function( X ) ), subclass( X, 'cross_product'( 
% 6.69/7.09    'universal_class', 'universal_class' ) ) ] )
% 6.69/7.09  , clause( 28713, [ ~( function( X ) ), subclass( compose( X, inverse( X ) )
% 6.69/7.09    , 'identity_relation' ) ] )
% 6.69/7.09  , clause( 28714, [ ~( subclass( X, 'cross_product'( 'universal_class', 
% 6.69/7.09    'universal_class' ) ) ), ~( subclass( compose( X, inverse( X ) ), 
% 6.69/7.09    'identity_relation' ) ), function( X ) ] )
% 6.69/7.09  , clause( 28715, [ ~( function( X ) ), ~( member( Y, 'universal_class' ) )
% 6.69/7.09    , member( image( X, Y ), 'universal_class' ) ] )
% 6.69/7.09  , clause( 28716, [ =( X, 'null_class' ), member( regular( X ), X ) ] )
% 6.69/7.09  , clause( 28717, [ =( X, 'null_class' ), =( intersection( X, regular( X ) )
% 6.69/7.09    , 'null_class' ) ] )
% 6.69/7.09  , clause( 28718, [ =( 'sum_class'( image( X, singleton( Y ) ) ), apply( X, 
% 6.69/7.09    Y ) ) ] )
% 6.69/7.09  , clause( 28719, [ function( choice ) ] )
% 6.69/7.09  , clause( 28720, [ ~( member( X, 'universal_class' ) ), =( X, 'null_class'
% 6.69/7.09     ), member( apply( choice, X ), X ) ] )
% 6.69/7.09  , clause( 28721, [ ~( 'one_to_one'( X ) ), function( X ) ] )
% 6.69/7.09  , clause( 28722, [ ~( 'one_to_one'( X ) ), function( inverse( X ) ) ] )
% 6.69/7.09  , clause( 28723, [ ~( function( inverse( X ) ) ), ~( function( X ) ), 
% 6.69/7.09    'one_to_one'( X ) ] )
% 6.69/7.09  , clause( 28724, [ =( intersection( 'cross_product'( 'universal_class', 
% 6.69/7.09    'universal_class' ), intersection( 'cross_product'( 'universal_class', 
% 6.69/7.09    'universal_class' ), complement( compose( complement( 'element_relation'
% 6.69/7.09     ), inverse( 'element_relation' ) ) ) ) ), 'subset_relation' ) ] )
% 6.69/7.09  , clause( 28725, [ =( intersection( inverse( 'subset_relation' ), 
% 6.69/7.09    'subset_relation' ), 'identity_relation' ) ] )
% 6.69/7.09  , clause( 28726, [ =( complement( 'domain_of'( intersection( X, 
% 6.69/7.09    'identity_relation' ) ) ), diagonalise( X ) ) ] )
% 6.69/7.09  , clause( 28727, [ =( intersection( 'domain_of'( X ), diagonalise( compose( 
% 6.69/7.09    inverse( 'element_relation' ), X ) ) ), cantor( X ) ) ] )
% 6.69/7.09  , clause( 28728, [ ~( operation( X ) ), function( X ) ] )
% 6.69/7.09  , clause( 28729, [ ~( operation( X ) ), =( 'cross_product'( 'domain_of'( 
% 6.69/7.09    'domain_of'( X ) ), 'domain_of'( 'domain_of'( X ) ) ), 'domain_of'( X ) )
% 6.69/7.09     ] )
% 6.69/7.09  , clause( 28730, [ ~( operation( X ) ), subclass( 'range_of'( X ), 
% 6.69/7.09    'domain_of'( 'domain_of'( X ) ) ) ] )
% 6.69/7.09  , clause( 28731, [ ~( function( X ) ), ~( =( 'cross_product'( 'domain_of'( 
% 6.69/7.09    'domain_of'( X ) ), 'domain_of'( 'domain_of'( X ) ) ), 'domain_of'( X ) )
% 6.69/7.09     ), ~( subclass( 'range_of'( X ), 'domain_of'( 'domain_of'( X ) ) ) ), 
% 6.69/7.09    operation( X ) ] )
% 6.69/7.09  , clause( 28732, [ ~( compatible( X, Y, Z ) ), function( X ) ] )
% 6.69/7.09  , clause( 28733, [ ~( compatible( X, Y, Z ) ), =( 'domain_of'( 'domain_of'( 
% 6.69/7.09    Y ) ), 'domain_of'( X ) ) ] )
% 6.69/7.09  , clause( 28734, [ ~( compatible( X, Y, Z ) ), subclass( 'range_of'( X ), 
% 6.69/7.09    'domain_of'( 'domain_of'( Z ) ) ) ] )
% 6.69/7.09  , clause( 28735, [ ~( function( X ) ), ~( =( 'domain_of'( 'domain_of'( Y )
% 6.69/7.09     ), 'domain_of'( X ) ) ), ~( subclass( 'range_of'( X ), 'domain_of'( 
% 6.69/7.09    'domain_of'( Z ) ) ) ), compatible( X, Y, Z ) ] )
% 6.69/7.09  , clause( 28736, [ ~( homomorphism( X, Y, Z ) ), operation( Y ) ] )
% 6.69/7.09  , clause( 28737, [ ~( homomorphism( X, Y, Z ) ), operation( Z ) ] )
% 6.69/7.09  , clause( 28738, [ ~( homomorphism( X, Y, Z ) ), compatible( X, Y, Z ) ] )
% 6.69/7.09  , clause( 28739, [ ~( homomorphism( X, Y, Z ) ), ~( member( 'ordered_pair'( 
% 6.69/7.09    T, U ), 'domain_of'( Y ) ) ), =( apply( Z, 'ordered_pair'( apply( X, T )
% 6.69/7.09    , apply( X, U ) ) ), apply( X, apply( Y, 'ordered_pair'( T, U ) ) ) ) ]
% 6.69/7.09     )
% 6.69/7.09  , clause( 28740, [ ~( operation( X ) ), ~( operation( Y ) ), ~( compatible( 
% 6.69/7.09    Z, X, Y ) ), member( 'ordered_pair'( 'not_homomorphism1'( Z, X, Y ), 
% 6.69/7.09    'not_homomorphism2'( Z, X, Y ) ), 'domain_of'( X ) ), homomorphism( Z, X
% 6.69/7.09    , Y ) ] )
% 6.69/7.09  , clause( 28741, [ ~( operation( X ) ), ~( operation( Y ) ), ~( compatible( 
% 6.69/7.09    Z, X, Y ) ), ~( =( apply( Y, 'ordered_pair'( apply( Z, 
% 6.69/7.09    'not_homomorphism1'( Z, X, Y ) ), apply( Z, 'not_homomorphism2'( Z, X, Y
% 6.69/7.09     ) ) ) ), apply( Z, apply( X, 'ordered_pair'( 'not_homomorphism1'( Z, X, 
% 6.69/7.09    Y ), 'not_homomorphism2'( Z, X, Y ) ) ) ) ) ), homomorphism( Z, X, Y ) ]
% 6.69/7.09     )
% 6.69/7.09  , clause( 28742, [ ~( member( 'ordered_pair'( X, Y ), 'cross_product'( Z, T
% 6.69/7.09     ) ) ), member( X, 'unordered_pair'( X, Y ) ) ] )
% 6.69/7.09  , clause( 28743, [ ~( member( 'ordered_pair'( X, Y ), 'cross_product'( Z, T
% 6.69/7.09     ) ) ), member( Y, 'unordered_pair'( X, Y ) ) ] )
% 6.69/7.09  , clause( 28744, [ ~( member( 'ordered_pair'( X, Y ), 'cross_product'( Z, T
% 6.69/7.09     ) ) ), member( X, 'universal_class' ) ] )
% 6.69/7.09  , clause( 28745, [ ~( member( 'ordered_pair'( X, Y ), 'cross_product'( Z, T
% 6.69/7.09     ) ) ), member( Y, 'universal_class' ) ] )
% 6.69/7.09  , clause( 28746, [ subclass( X, X ) ] )
% 6.69/7.09  , clause( 28747, [ ~( subclass( X, Y ) ), ~( subclass( Y, Z ) ), subclass( 
% 6.69/7.09    X, Z ) ] )
% 6.69/7.09  , clause( 28748, [ =( X, Y ), member( 'not_subclass_element'( X, Y ), X ), 
% 6.69/7.09    member( 'not_subclass_element'( Y, X ), Y ) ] )
% 6.69/7.09  , clause( 28749, [ ~( member( 'not_subclass_element'( X, Y ), Y ) ), =( X, 
% 6.69/7.09    Y ), member( 'not_subclass_element'( Y, X ), Y ) ] )
% 6.69/7.09  , clause( 28750, [ ~( member( 'not_subclass_element'( X, Y ), Y ) ), =( Y, 
% 6.69/7.09    X ), member( 'not_subclass_element'( Y, X ), Y ) ] )
% 6.69/7.09  , clause( 28751, [ ~( member( 'not_subclass_element'( X, Y ), Y ) ), ~( 
% 6.69/7.09    member( 'not_subclass_element'( Y, X ), X ) ), =( X, Y ) ] )
% 6.69/7.09  , clause( 28752, [ ~( member( X, intersection( complement( Y ), Y ) ) ) ]
% 6.69/7.09     )
% 6.69/7.09  , clause( 28753, [ ~( member( X, 'null_class' ) ) ] )
% 6.69/7.09  , clause( 28754, [ subclass( 'null_class', X ) ] )
% 6.69/7.09  , clause( 28755, [ ~( subclass( X, 'null_class' ) ), =( X, 'null_class' ) ]
% 6.69/7.09     )
% 6.69/7.09  , clause( 28756, [ =( X, 'null_class' ), member( 'not_subclass_element'( X
% 6.69/7.09    , 'null_class' ), X ) ] )
% 6.69/7.09  , clause( 28757, [ member( 'null_class', 'universal_class' ) ] )
% 6.69/7.09  , clause( 28758, [ =( 'unordered_pair'( X, Y ), 'unordered_pair'( Y, X ) )
% 6.69/7.09     ] )
% 6.69/7.09  , clause( 28759, [ subclass( singleton( X ), 'unordered_pair'( X, Y ) ) ]
% 6.69/7.09     )
% 6.69/7.09  , clause( 28760, [ subclass( singleton( X ), 'unordered_pair'( Y, X ) ) ]
% 6.69/7.09     )
% 6.69/7.09  , clause( 28761, [ member( X, 'universal_class' ), =( 'unordered_pair'( Y, 
% 6.69/7.09    X ), singleton( Y ) ) ] )
% 6.69/7.09  , clause( 28762, [ member( X, 'universal_class' ), =( 'unordered_pair'( X, 
% 6.69/7.09    Y ), singleton( Y ) ) ] )
% 6.69/7.09  , clause( 28763, [ =( 'unordered_pair'( X, Y ), 'null_class' ), member( X, 
% 6.69/7.09    'universal_class' ), member( Y, 'universal_class' ) ] )
% 6.69/7.09  , clause( 28764, [ ~( =( 'unordered_pair'( X, Y ), 'unordered_pair'( X, Z )
% 6.69/7.09     ) ), ~( member( 'ordered_pair'( Y, Z ), 'cross_product'( 
% 6.69/7.09    'universal_class', 'universal_class' ) ) ), =( Y, Z ) ] )
% 6.69/7.09  , clause( 28765, [ ~( =( 'unordered_pair'( X, Y ), 'unordered_pair'( Z, Y )
% 6.69/7.09     ) ), ~( member( 'ordered_pair'( X, Z ), 'cross_product'( 
% 6.69/7.09    'universal_class', 'universal_class' ) ) ), =( X, Z ) ] )
% 6.69/7.09  , clause( 28766, [ ~( member( X, 'universal_class' ) ), ~( =( 
% 6.69/7.09    'unordered_pair'( X, Y ), 'null_class' ) ) ] )
% 6.69/7.09  , clause( 28767, [ ~( member( X, 'universal_class' ) ), ~( =( 
% 6.69/7.09    'unordered_pair'( Y, X ), 'null_class' ) ) ] )
% 6.69/7.09  , clause( 28768, [ ~( member( 'ordered_pair'( X, Y ), 'cross_product'( Z, T
% 6.69/7.09     ) ) ), ~( =( 'unordered_pair'( X, Y ), 'null_class' ) ) ] )
% 6.69/7.09  , clause( 28769, [ ~( member( X, Y ) ), ~( member( Z, Y ) ), subclass( 
% 6.69/7.09    'unordered_pair'( X, Z ), Y ) ] )
% 6.69/7.09  , clause( 28770, [ member( singleton( X ), 'universal_class' ) ] )
% 6.69/7.09  , clause( 28771, [ member( singleton( X ), 'unordered_pair'( Y, singleton( 
% 6.69/7.09    X ) ) ) ] )
% 6.69/7.09  , clause( 28772, [ ~( member( X, 'universal_class' ) ), member( X, 
% 6.69/7.09    singleton( X ) ) ] )
% 6.69/7.09  , clause( 28773, [ ~( member( X, 'universal_class' ) ), ~( =( singleton( X
% 6.69/7.09     ), 'null_class' ) ) ] )
% 6.69/7.09  , clause( 28774, [ member( 'null_class', singleton( 'null_class' ) ) ] )
% 6.69/7.09  , clause( 28775, [ ~( member( X, singleton( Y ) ) ), =( X, Y ) ] )
% 6.69/7.09  , clause( 28776, [ member( X, 'universal_class' ), =( singleton( X ), 
% 6.69/7.09    'null_class' ) ] )
% 6.69/7.09  , clause( 28777, [ ~( =( singleton( X ), singleton( Y ) ) ), ~( member( X, 
% 6.69/7.09    'universal_class' ) ), =( X, Y ) ] )
% 6.69/7.09  , clause( 28778, [ ~( =( singleton( X ), singleton( Y ) ) ), ~( member( Y, 
% 6.69/7.09    'universal_class' ) ), =( X, Y ) ] )
% 6.69/7.09  , clause( 28779, [ ~( =( 'unordered_pair'( X, Y ), singleton( Z ) ) ), ~( 
% 6.69/7.09    member( Z, 'universal_class' ) ), =( Z, X ), =( Z, Y ) ] )
% 6.69/7.09  , clause( 28780, [ ~( member( X, 'universal_class' ) ), member( 'member_of'( 
% 6.69/7.09    singleton( X ) ), 'universal_class' ) ] )
% 6.69/7.09  , clause( 28781, [ ~( member( X, 'universal_class' ) ), =( singleton( 
% 6.69/7.09    'member_of'( singleton( X ) ) ), singleton( X ) ) ] )
% 6.69/7.09  , clause( 28782, [ member( 'member_of'( X ), 'universal_class' ), =( 
% 6.69/7.09    'member_of'( X ), X ) ] )
% 6.69/7.09  , clause( 28783, [ =( singleton( 'member_of'( X ) ), X ), =( 'member_of'( X
% 6.69/7.09     ), X ) ] )
% 6.69/7.09  , clause( 28784, [ ~( member( X, 'universal_class' ) ), =( 'member_of'( 
% 6.69/7.09    singleton( X ) ), X ) ] )
% 6.69/7.09  , clause( 28785, [ member( 'member_of1'( X ), 'universal_class' ), =( 
% 6.69/7.09    'member_of'( X ), X ) ] )
% 6.69/7.09  , clause( 28786, [ =( singleton( 'member_of1'( X ) ), X ), =( 'member_of'( 
% 6.69/7.09    X ), X ) ] )
% 6.69/7.09  , clause( 28787, [ ~( =( singleton( 'member_of'( X ) ), X ) ), member( X, 
% 6.69/7.09    'universal_class' ) ] )
% 6.69/7.09  , clause( 28788, [ ~( =( singleton( 'member_of'( X ) ), X ) ), ~( member( Y
% 6.69/7.09    , X ) ), =( 'member_of'( X ), Y ) ] )
% 6.69/7.09  , clause( 28789, [ ~( member( X, Y ) ), subclass( singleton( X ), Y ) ] )
% 6.69/7.09  , clause( 28790, [ ~( subclass( X, singleton( Y ) ) ), =( X, 'null_class' )
% 6.69/7.09    , =( singleton( Y ), X ) ] )
% 6.69/7.09  , clause( 28791, [ member( 'not_subclass_element'( intersection( complement( 
% 6.69/7.09    singleton( 'not_subclass_element'( X, 'null_class' ) ) ), X ), 
% 6.69/7.09    'null_class' ), intersection( complement( singleton( 
% 6.69/7.09    'not_subclass_element'( X, 'null_class' ) ) ), X ) ), =( singleton( 
% 6.69/7.09    'not_subclass_element'( X, 'null_class' ) ), X ), =( X, 'null_class' ) ]
% 6.69/7.09     )
% 6.69/7.09  , clause( 28792, [ member( 'not_subclass_element'( intersection( complement( 
% 6.69/7.09    singleton( 'not_subclass_element'( X, 'null_class' ) ) ), X ), 
% 6.69/7.09    'null_class' ), X ), =( singleton( 'not_subclass_element'( X, 
% 6.69/7.09    'null_class' ) ), X ), =( X, 'null_class' ) ] )
% 6.69/7.09  , clause( 28793, [ ~( =( 'not_subclass_element'( intersection( complement( 
% 6.69/7.09    singleton( 'not_subclass_element'( X, 'null_class' ) ) ), X ), 
% 6.69/7.09    'null_class' ), 'not_subclass_element'( X, 'null_class' ) ) ), =( 
% 6.69/7.09    singleton( 'not_subclass_element'( X, 'null_class' ) ), X ), =( X, 
% 6.69/7.09    'null_class' ) ] )
% 6.69/7.09  , clause( 28794, [ =( 'unordered_pair'( X, Y ), union( singleton( X ), 
% 6.69/7.09    singleton( Y ) ) ) ] )
% 6.69/7.09  , clause( 28795, [ member( 'ordered_pair'( X, Y ), 'universal_class' ) ] )
% 6.69/7.09  , clause( 28796, [ member( singleton( X ), 'ordered_pair'( X, Y ) ) ] )
% 6.69/7.09  , clause( 28797, [ member( 'unordered_pair'( X, singleton( Y ) ), 
% 6.69/7.09    'ordered_pair'( X, Y ) ) ] )
% 6.69/7.09  , clause( 28798, [ =( 'unordered_pair'( singleton( X ), 'unordered_pair'( X
% 6.69/7.09    , 'null_class' ) ), 'ordered_pair'( X, Y ) ), member( Y, 
% 6.69/7.09    'universal_class' ) ] )
% 6.69/7.09  , clause( 28799, [ ~( member( X, 'universal_class' ) ), =( 'unordered_pair'( 
% 6.69/7.09    'null_class', singleton( singleton( X ) ) ), 'ordered_pair'( Y, X ) ), 
% 6.69/7.09    member( Y, 'universal_class' ) ] )
% 6.69/7.09  , clause( 28800, [ =( 'unordered_pair'( 'null_class', singleton( 
% 6.69/7.09    'null_class' ) ), 'ordered_pair'( X, Y ) ), member( X, 'universal_class'
% 6.69/7.09     ), member( Y, 'universal_class' ) ] )
% 6.69/7.09  , clause( 28801, [ ~( =( 'ordered_pair'( X, Y ), 'ordered_pair'( Z, T ) ) )
% 6.69/7.09    , ~( member( X, 'universal_class' ) ), =( X, Z ) ] )
% 6.69/7.09  , clause( 28802, [ ~( =( 'ordered_pair'( X, Y ), 'ordered_pair'( Z, T ) ) )
% 6.69/7.09    , ~( member( Y, 'universal_class' ) ), =( Y, T ) ] )
% 6.69/7.09  , clause( 28803, [ ~( member( 'ordered_pair'( X, Y ), 'cross_product'( 
% 6.69/7.09    'universal_class', 'universal_class' ) ) ), member( 'ordered_pair'( first( 
% 6.69/7.09    'ordered_pair'( X, Y ) ), second( 'ordered_pair'( X, Y ) ) ), 
% 6.69/7.09    'cross_product'( 'universal_class', 'universal_class' ) ) ] )
% 6.69/7.09  , clause( 28804, [ member( 'ordered_pair'( first( X ), second( X ) ), 
% 6.69/7.09    'cross_product'( 'universal_class', 'universal_class' ) ), =( first( X )
% 6.69/7.09    , X ) ] )
% 6.69/7.09  , clause( 28805, [ member( 'ordered_pair'( first( X ), second( X ) ), 
% 6.69/7.09    'cross_product'( 'universal_class', 'universal_class' ) ), =( second( X )
% 6.69/7.09    , X ) ] )
% 6.69/7.09  , clause( 28806, [ =( 'ordered_pair'( first( X ), second( X ) ), X ), =( 
% 6.69/7.09    first( X ), X ) ] )
% 6.69/7.09  , clause( 28807, [ =( 'ordered_pair'( first( X ), second( X ) ), X ), =( 
% 6.69/7.09    second( X ), X ) ] )
% 6.69/7.09  , clause( 28808, [ ~( member( 'ordered_pair'( X, Y ), 'cross_product'( 
% 6.69/7.09    'universal_class', 'universal_class' ) ) ), =( first( 'ordered_pair'( X, 
% 6.69/7.09    Y ) ), X ) ] )
% 6.69/7.09  , clause( 28809, [ ~( member( 'ordered_pair'( X, Y ), 'cross_product'( 
% 6.69/7.09    'universal_class', 'universal_class' ) ) ), =( second( 'ordered_pair'( X
% 6.69/7.09    , Y ) ), Y ) ] )
% 6.69/7.09  , clause( 28810, [ member( 'ordered_pair'( first( X ), second( X ) ), 
% 6.69/7.09    'cross_product'( 'universal_class', 'universal_class' ) ), =( first( X )
% 6.69/7.09    , X ) ] )
% 6.69/7.09  , clause( 28811, [ member( 'ordered_pair'( first( X ), second( X ) ), 
% 6.69/7.09    'cross_product'( 'universal_class', 'universal_class' ) ), =( second( X )
% 6.69/7.09    , X ) ] )
% 6.69/7.09  , clause( 28812, [ =( 'ordered_pair'( first( X ), second( X ) ), X ), =( 
% 6.69/7.09    first( X ), X ) ] )
% 6.69/7.09  , clause( 28813, [ =( 'ordered_pair'( first( X ), second( X ) ), X ), =( 
% 6.69/7.09    second( X ), X ) ] )
% 6.69/7.09  , clause( 28814, [ ~( =( 'ordered_pair'( first( X ), second( X ) ), X ) ), 
% 6.69/7.09    member( X, 'universal_class' ) ] )
% 6.69/7.09  , clause( 28815, [ ~( member( X, 'cross_product'( 'universal_class', 
% 6.69/7.09    'universal_class' ) ) ), member( X, 'universal_class' ) ] )
% 6.69/7.09  , clause( 28816, [ ~( member( x, 'universal_class' ) ) ] )
% 6.69/7.09  , clause( 28817, [ ~( =( second( 'ordered_pair'( x, y ) ), 'ordered_pair'( 
% 6.69/7.09    x, y ) ) ) ] )
% 6.69/7.09  ] ).
% 6.69/7.09  
% 6.69/7.09  
% 6.69/7.09  
% 6.69/7.09  subsumption(
% 6.69/7.09  clause( 0, [ ~( subclass( X, Y ) ), ~( member( Z, X ) ), member( Z, Y ) ]
% 6.69/7.12     )
% 6.69/7.12  , clause( 28651, [ ~( subclass( X, Y ) ), ~( member( Z, X ) ), member( Z, Y
% 6.69/7.12     ) ] )
% 6.69/7.12  , substitution( 0, [ :=( X, X ), :=( Y, Y ), :=( Z, Z )] ), 
% 6.69/7.12    permutation( 0, [ ==>( 0, 0 ), ==>( 1, 1 ), ==>( 2, 2 )] ) ).
% 6.69/7.12  
% 6.69/7.12  
% 6.69/7.12  subsumption(
% 6.69/7.12  clause( 3, [ subclass( X, 'universal_class' ) ] )
% 6.69/7.12  , clause( 28654, [ subclass( X, 'universal_class' ) ] )
% 6.69/7.12  , substitution( 0, [ :=( X, X )] ), permutation( 0, [ ==>( 0, 0 )] ) ).
% 6.69/7.12  
% 6.69/7.12  
% 6.69/7.12  subsumption(
% 6.69/7.12  clause( 12, [ ~( member( 'ordered_pair'( X, Y ), 'cross_product'( Z, T ) )
% 6.69/7.12     ), member( X, Z ) ] )
% 6.69/7.12  , clause( 28664, [ ~( member( 'ordered_pair'( X, Y ), 'cross_product'( Z, T
% 6.69/7.12     ) ) ), member( X, Z ) ] )
% 6.69/7.12  , substitution( 0, [ :=( X, X ), :=( Y, Y ), :=( Z, Z ), :=( T, T )] ), 
% 6.69/7.12    permutation( 0, [ ==>( 0, 0 ), ==>( 1, 1 )] ) ).
% 6.69/7.12  
% 6.69/7.12  
% 6.69/7.12  subsumption(
% 6.69/7.12  clause( 153, [ =( 'ordered_pair'( first( X ), second( X ) ), X ), =( second( 
% 6.69/7.12    X ), X ) ] )
% 6.69/7.12  , clause( 28807, [ =( 'ordered_pair'( first( X ), second( X ) ), X ), =( 
% 6.69/7.12    second( X ), X ) ] )
% 6.69/7.12  , substitution( 0, [ :=( X, X )] ), permutation( 0, [ ==>( 0, 0 ), ==>( 1, 
% 6.69/7.12    1 )] ) ).
% 6.69/7.12  
% 6.69/7.12  
% 6.69/7.12  eqswap(
% 6.69/7.12  clause( 30469, [ =( X, second( X ) ), =( 'ordered_pair'( first( X ), second( 
% 6.69/7.12    X ) ), X ) ] )
% 6.69/7.12  , clause( 153, [ =( 'ordered_pair'( first( X ), second( X ) ), X ), =( 
% 6.69/7.12    second( X ), X ) ] )
% 6.69/7.12  , 1, substitution( 0, [ :=( X, X )] )).
% 6.69/7.12  
% 6.69/7.12  
% 6.69/7.12  paramod(
% 6.69/7.12  clause( 30504, [ member( X, 'cross_product'( 'universal_class', 
% 6.69/7.12    'universal_class' ) ), =( X, second( X ) ), =( second( X ), X ) ] )
% 6.69/7.12  , clause( 30469, [ =( X, second( X ) ), =( 'ordered_pair'( first( X ), 
% 6.69/7.12    second( X ) ), X ) ] )
% 6.69/7.12  , 1, clause( 28805, [ member( 'ordered_pair'( first( X ), second( X ) ), 
% 6.69/7.12    'cross_product'( 'universal_class', 'universal_class' ) ), =( second( X )
% 6.69/7.12    , X ) ] )
% 6.69/7.12  , 0, 1, substitution( 0, [ :=( X, X )] ), substitution( 1, [ :=( X, X )] )
% 6.69/7.12    ).
% 6.69/7.12  
% 6.69/7.12  
% 6.69/7.12  eqswap(
% 6.69/7.12  clause( 30505, [ =( second( X ), X ), member( X, 'cross_product'( 
% 6.69/7.12    'universal_class', 'universal_class' ) ), =( second( X ), X ) ] )
% 6.69/7.12  , clause( 30504, [ member( X, 'cross_product'( 'universal_class', 
% 6.69/7.12    'universal_class' ) ), =( X, second( X ) ), =( second( X ), X ) ] )
% 6.69/7.12  , 1, substitution( 0, [ :=( X, X )] )).
% 6.69/7.12  
% 6.69/7.12  
% 6.69/7.12  factor(
% 6.69/7.12  clause( 30508, [ =( second( X ), X ), member( X, 'cross_product'( 
% 6.69/7.12    'universal_class', 'universal_class' ) ) ] )
% 6.69/7.12  , clause( 30505, [ =( second( X ), X ), member( X, 'cross_product'( 
% 6.69/7.12    'universal_class', 'universal_class' ) ), =( second( X ), X ) ] )
% 6.69/7.12  , 0, 2, substitution( 0, [ :=( X, X )] )).
% 6.69/7.12  
% 6.69/7.12  
% 6.69/7.12  subsumption(
% 6.69/7.12  clause( 157, [ =( second( X ), X ), member( X, 'cross_product'( 
% 6.69/7.12    'universal_class', 'universal_class' ) ) ] )
% 6.69/7.12  , clause( 30508, [ =( second( X ), X ), member( X, 'cross_product'( 
% 6.69/7.12    'universal_class', 'universal_class' ) ) ] )
% 6.69/7.12  , substitution( 0, [ :=( X, X )] ), permutation( 0, [ ==>( 0, 0 ), ==>( 1, 
% 6.69/7.12    1 )] ) ).
% 6.69/7.12  
% 6.69/7.12  
% 6.69/7.12  subsumption(
% 6.69/7.12  clause( 160, [ ~( member( x, 'universal_class' ) ) ] )
% 6.69/7.12  , clause( 28816, [ ~( member( x, 'universal_class' ) ) ] )
% 6.69/7.12  , substitution( 0, [] ), permutation( 0, [ ==>( 0, 0 )] ) ).
% 6.69/7.12  
% 6.69/7.12  
% 6.69/7.12  subsumption(
% 6.69/7.12  clause( 161, [ ~( =( second( 'ordered_pair'( x, y ) ), 'ordered_pair'( x, y
% 6.69/7.12     ) ) ) ] )
% 6.69/7.12  , clause( 28817, [ ~( =( second( 'ordered_pair'( x, y ) ), 'ordered_pair'( 
% 6.69/7.12    x, y ) ) ) ] )
% 6.69/7.12  , substitution( 0, [] ), permutation( 0, [ ==>( 0, 0 )] ) ).
% 6.69/7.12  
% 6.69/7.12  
% 6.69/7.12  resolution(
% 6.69/7.12  clause( 30817, [ ~( subclass( X, 'universal_class' ) ), ~( member( x, X ) )
% 6.69/7.12     ] )
% 6.69/7.12  , clause( 160, [ ~( member( x, 'universal_class' ) ) ] )
% 6.69/7.12  , 0, clause( 0, [ ~( subclass( X, Y ) ), ~( member( Z, X ) ), member( Z, Y
% 6.69/7.12     ) ] )
% 6.69/7.12  , 2, substitution( 0, [] ), substitution( 1, [ :=( X, X ), :=( Y, 
% 6.69/7.12    'universal_class' ), :=( Z, x )] )).
% 6.69/7.12  
% 6.69/7.12  
% 6.69/7.12  resolution(
% 6.69/7.12  clause( 30818, [ ~( member( x, X ) ) ] )
% 6.69/7.12  , clause( 30817, [ ~( subclass( X, 'universal_class' ) ), ~( member( x, X )
% 6.69/7.12     ) ] )
% 6.69/7.12  , 0, clause( 3, [ subclass( X, 'universal_class' ) ] )
% 6.69/7.12  , 0, substitution( 0, [ :=( X, X )] ), substitution( 1, [ :=( X, X )] )
% 6.69/7.12    ).
% 6.69/7.12  
% 6.69/7.12  
% 6.69/7.12  subsumption(
% 6.69/7.12  clause( 180, [ ~( member( x, X ) ) ] )
% 6.69/7.12  , clause( 30818, [ ~( member( x, X ) ) ] )
% 6.69/7.12  , substitution( 0, [ :=( X, X )] ), permutation( 0, [ ==>( 0, 0 )] ) ).
% 6.69/7.12  
% 6.69/7.12  
% 6.69/7.12  resolution(
% 6.69/7.12  clause( 30819, [ ~( member( 'ordered_pair'( x, Y ), 'cross_product'( X, Z )
% 6.69/7.12     ) ) ] )
% 6.69/7.12  , clause( 180, [ ~( member( x, X ) ) ] )
% 6.69/7.12  , 0, clause( 12, [ ~( member( 'ordered_pair'( X, Y ), 'cross_product'( Z, T
% 6.69/7.12     ) ) ), member( X, Z ) ] )
% 6.69/7.12  , 1, substitution( 0, [ :=( X, X )] ), substitution( 1, [ :=( X, x ), :=( Y
% 6.69/7.12    , Y ), :=( Z, X ), :=( T, Z )] )).
% 6.69/7.12  
% 6.69/7.12  
% 6.69/7.12  subsumption(
% 6.69/7.12  clause( 614, [ ~( member( 'ordered_pair'( x, X ), 'cross_product'( Y, Z ) )
% 6.69/7.12     ) ] )
% 6.69/7.12  , clause( 30819, [ ~( member( 'ordered_pair'( x, Y ), 'cross_product'( X, Z
% 6.69/7.12     ) ) ) ] )
% 6.69/7.12  , substitution( 0, [ :=( X, Y ), :=( Y, X ), :=( Z, Z )] ), 
% 6.69/7.12    permutation( 0, [ ==>( 0, 0 )] ) ).
% 6.69/7.12  
% 6.69/7.12  
% 6.69/7.12  eqswap(
% 6.69/7.12  clause( 30820, [ ~( =( 'ordered_pair'( x, y ), second( 'ordered_pair'( x, y
% 6.69/7.12     ) ) ) ) ] )
% 6.69/7.12  , clause( 161, [ ~( =( second( 'ordered_pair'( x, y ) ), 'ordered_pair'( x
% 6.69/7.12    , y ) ) ) ] )
% 6.69/7.12  , 0, substitution( 0, [] )).
% 6.69/7.12  
% 6.69/7.12  
% 6.69/7.12  eqswap(
% 6.69/7.12  clause( 30821, [ =( X, second( X ) ), member( X, 'cross_product'( 
% 6.69/7.12    'universal_class', 'universal_class' ) ) ] )
% 6.69/7.12  , clause( 157, [ =( second( X ), X ), member( X, 'cross_product'( 
% 6.69/7.12    'universal_class', 'universal_class' ) ) ] )
% 6.69/7.12  , 0, substitution( 0, [ :=( X, X )] )).
% 6.69/7.12  
% 6.69/7.12  
% 6.69/7.12  resolution(
% 6.69/7.12  clause( 30822, [ member( 'ordered_pair'( x, y ), 'cross_product'( 
% 6.69/7.12    'universal_class', 'universal_class' ) ) ] )
% 6.69/7.12  , clause( 30820, [ ~( =( 'ordered_pair'( x, y ), second( 'ordered_pair'( x
% 6.69/7.12    , y ) ) ) ) ] )
% 6.69/7.12  , 0, clause( 30821, [ =( X, second( X ) ), member( X, 'cross_product'( 
% 6.69/7.12    'universal_class', 'universal_class' ) ) ] )
% 6.69/7.12  , 0, substitution( 0, [] ), substitution( 1, [ :=( X, 'ordered_pair'( x, y
% 6.69/7.12     ) )] )).
% 6.69/7.12  
% 6.69/7.12  
% 6.69/7.12  resolution(
% 6.69/7.12  clause( 30823, [] )
% 6.69/7.12  , clause( 614, [ ~( member( 'ordered_pair'( x, X ), 'cross_product'( Y, Z )
% 6.69/7.12     ) ) ] )
% 6.69/7.12  , 0, clause( 30822, [ member( 'ordered_pair'( x, y ), 'cross_product'( 
% 6.69/7.12    'universal_class', 'universal_class' ) ) ] )
% 6.69/7.12  , 0, substitution( 0, [ :=( X, y ), :=( Y, 'universal_class' ), :=( Z, 
% 6.69/7.12    'universal_class' )] ), substitution( 1, [] )).
% 6.69/7.12  
% 6.69/7.12  
% 6.69/7.12  subsumption(
% 6.69/7.12  clause( 28649, [] )
% 6.69/7.12  , clause( 30823, [] )
% 6.69/7.12  , substitution( 0, [] ), permutation( 0, [] ) ).
% 6.69/7.12  
% 6.69/7.12  
% 6.69/7.12  end.
% 6.69/7.12  
% 6.69/7.12  % ABCDEFGHIJKLMNOPQRSTUVWXYZ
% 6.69/7.12  
% 6.69/7.12  Memory use:
% 6.69/7.12  
% 6.69/7.12  space for terms:        515866
% 6.69/7.12  space for clauses:      1323427
% 6.69/7.12  
% 6.69/7.12  
% 6.69/7.12  clauses generated:      94631
% 6.69/7.12  clauses kept:           28650
% 6.69/7.12  clauses selected:       604
% 6.69/7.12  clauses deleted:        2243
% 6.69/7.12  clauses inuse deleted:  92
% 6.69/7.12  
% 6.69/7.12  subsentry:          410059
% 6.69/7.12  literals s-matched: 289829
% 6.69/7.12  literals matched:   279390
% 6.69/7.12  full subsumption:   159800
% 6.69/7.12  
% 6.69/7.12  checksum:           239000927
% 6.69/7.12  
% 6.69/7.12  
% 6.69/7.12  Bliksem ended
%------------------------------------------------------------------------------