Subject: question R-5.17 (p.196)

From: [email-masked] (Chee Yap)
Date: Mon, 26 Oct 1998 10:02:28 -0500

Bug in question R-5.17 (not required).

It asks you to show that p(v) <= 2^{(n-1)/2} for
all nodes v. 

This is clearly wrong, if you look at any small
examples.

The question is correct if you restrict v to the
INTERNAL nodes only.  So, v must not be an EXTERNAL node.

--Chee