cps tweaks

[lambda.git] / hints / cps_hint_4.mdwn

diff --git a/hints/cps_hint_4.mdwn b/hints/cps_hint_4.mdwn
index 09a45af..028504c 100644 (file)
--- a/hints/cps_hint_4.mdwn
+++ b/hints/cps_hint_4.mdwn
@@ -52,4 +52,5 @@ This function is developed in *The Seasoned Schemer* pp. 165-177. It accepts a l
        (delta '(((a b) ()) (c (d (d)))))  ; ~~> #t
        (delta '(((a b c) ()) (c (d ())))) ; ~~> #t
        (delta '(((a b) ()) (c (d ()) c))) ; ~~> #f
        (delta '(((a b) ()) (c (d (d)))))  ; ~~> #t
        (delta '(((a b c) ()) (c (d ())))) ; ~~> #t
        (delta '(((a b) ()) (c (d ()) c))) ; ~~> #f

+       (delta '((() ()) ()))              ; ~~> #f