| A collection of object sets for use in set comprehensions. All of
the public methods are model methods, because there is no way to
compute the set of all potential object identities of any given
type.
This type is not that useful, as you can mostly just use
quantification over the relevant type instead of one of these sets.
Indeed the sets are defined by using universal quantifiers, and so their
use is roughly equivalent.
version: $Revision: 1.2 $ author: Gary T. Leavens |