- enum-set-subset? enum-set-1 enum-set-2procedure
Returns #t if the set of the names of the elements of enum-set-1 is a subset of the set of the names of the elements of enum-set-2. Otherwise returns #f. Note that enum-set-1 and enum-set-2 can be of different enum types.
(enum-set-subset? (enum-set color red blue) (enum-set color red green blue)) ⇒ #t (enum-set-subset? (enum-set us-traffic-light red green) (enum-set color red green blue)) ⇒ #t