- iset-member iset element defaultprocedure
Returns the element of iset that is equal to element. If element is not a member of iset, default is returned.
Examples:
(iset-member (iset 2 3 5 7 11) 7 #f) ⇒ 7 (iset-member (iset 2 3 5 7 11) 4 'failure) ⇒ failure