4 ms·Same for the others. (filter even? '(1 2 3 4)) (remove-it-not 'evenp '(1 2 3 4))by vito 16y agoSame for the others. (filter even? '(1 2 3 4)) (remove-it-not 'evenp '(1 2 3 4))lfborjas 16y agoOh, right! even? is already a function, d'oh!angus77 16y agoI think you mean 'remove-IF-not.serichsen 16y agoOr: (remove-if 'oddp '(1 2 3 4))