#!/usr/local/bin/sbcl --script (defun add-record (cd) (push cd *db*)) (defun remove-if-not-evenp (number) (remove-if-not #'evenp '(number))) (format t "~a"(remove-if-not #'evenp '(1 2 3 4 5 6 7 8 9 10))) (remove-if-not #'evenp '(1 2 3 4 5 6 7 8 9 10)) (remove-if-not-evenp(1))