Re: Best recursion choice for "penultimax"

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