lisp is also nice for testing arguments, like 0 < a0 < a1 < ... < an < 999, ai ∈ integer (and (< 0 a0 a1 ... an 999) (apply and (map integer? (list a0 a1 .

lisp is also nice for testing arguments, like 0 < a0 < a1 < ... < an < 999, ai ∈ integer (and (< 0 a0 a1 ... an 999) (apply and (map integer? (list a0 a1 ... an))) (foo bar))