Oops - xkcd got the proof wrong!  Here's an improvement
(mathematically, if not poetically!)
<P>
<img src="haiku_proof-fix.jpg">
<P>
(One could argue he had it right - it depends on what he really means
by "top primes" I guess.)
<P>
<a href="http://xkcd.com/622">I still love the original comic ...</a>