"David C. Ullrich" wrote: > > On Sat, 23 Mar 2013 18:58:53 +0000, Frederick Williams > <email@example.com> wrote:
> > > >May I ask what the intractable problem is? (My apologies if it's been > >made clear and I've missed it.) Let f(n) be the number of SC > >compactifications of n open line segments. > > That one's easy; f(n) = 1. You want to delete the "SC" here > and insert "finite", meaning "only finitely many added points".
Yes, sorry I was muddling two different things.
-- When a true genius appears in the world, you may know him by this sign, that the dunces are all in confederacy against him. Jonathan Swift: Thoughts on Various Subjects, Moral and Diverting