Talk:Principle of Inclusion-Exclusion

I forgot to write Summary. I added the statement, but it doesn't look very good.

It'll look fine after someone adds some more introductory-level information (such as citing a few simpler examples first, before jumping to the semi-general result, which will be indecipherable to a young beginner). Then it will be lower on the page and the big gap won't appear. --Rrusczyk 13:25, 18 June 2006 (EDT)