1.23 Set Functions for Green Classes

Green classes are domains so all set theoretic functions for domains can be applied to them. Most of the set functions will work via default methods once the following methods have been implemented.

Size( class )

determines the size of Green class class.

Elements( class )

returns the set of all elements of the Green class class

obj in class

returns true if obj is a member of the Green class class and false otherwise.

However, no generic methods are provided.

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Version 2.4 (May 1998)