lis#class_of_number  click here for details
  exclusion:  class_of_class_of_individual  class_of_class_of_relationship  arithmetic_number  class_of_property_space  class_of_shape_dimension
  supertype:  class_of_class  click here for details
  member:  arithmetic_number
  subtype:  number_space  click here for details
     subtype:  number_range
     subtype:  multidimensional_number_space
  subtype:  enumerated_number_set

No statement uses or specializes class_of_number; click here to add one.