Best recursion choice for "penultimax"

[John Hughes]

>
> What does "nub" stand for?  (This is the first I've heard of it.)
> From the definition in List.hs it seems to remove repeats, keeping
> only the first.

Yes, that's what it does. It doesn't stand for anything, it's a word:

"nub: small knob or lump, esp. of coal; small residue, stub; point or gist
(of matter or story)."
Concise OED.

It's the second or third meaning which is implied here.

Hmm, maybe that's not such a great explanation. I wonder who can come up
with the best acronym? My contribution is

	"Note Unique Bits"

John