Exercise 7.8b, p. 174

     (element-of-satisfies? '(1 3 5 7 9) even?) ⇒ #f

     (element-of-satisfies? '(1 3 5 7 9) odd?) ⇒ #t

• If a list is empty, then _____

• If a list is not empty, an element satisfies a predicate if _____

• If a list is not empty and the head does not satisfy a predicate, an element satisfies the predicate if _____