Re: [math-fun] favorite theorem

At 12:08 PM 4/28/2006, Cordwell, William R wrote:

One of my students asked me what my favorite theorem was, a question that I found interesting and surprisingly difficult to answer.

So...what's your favorite theorem or proof (and why)?

Probably Godel's Incompleteness Theorem, because it is so interesting. (Not my favorite proof, though.)