Lattice of Chords

HI Gene,

> I was going to try geometry next. Maybe I should have tried it first, but I
> have the prejudices of an algebraist.

Yes of course :-).

I can well understand the appeal of algebra - greatly enjoyed what I did of it
as an undergraduate - group theory mainly and Galois theory. I did just a bit
of galois theory for the geometry research but it wasn't my own idea, just
followed a method suggested by a professor at the univ to prove the irrationality
of certain expressions I needed to show were irrational.

Robert