CARDINALITY-OF-SET ================== syntax: (cardinality-of-set <evaluates-to <set-of X (...)>>) This function determines the cardinality of the set. It returns the number of elements. Warning: length works the same on vectors and lists !!! example: >(list-to-set '(1 2 3) :TYPE 'integer) #<set-of INTEGER (...)> >(cardinality-of-set *) 3