(idea) by mps Sat Jul 08 2000 at 19:47:38

For any x, x is an upper bound for a set T if and only if for every y in T, x is greater than or equal to y. If x is an element of T in addition to being an upper bound for T, it is a maximum of T.

del.icio.us Furl Facebook Digg StumbleUpon Reddit   (I like it!)
Y'know, if you log in, you can write something here, or contact authors directly on the site. Create a New User if you don't already have an account.