I feel like the notation here should be relaxed at the beginning of the article so that students just learning about such inequalities can get a better grip on the statement of the inequality.--MCrawford 17:58, 11 July 2006 (EDT)

I agreed with Mr. Crawford, so I added an elementary form and proof. I didn't deal with the cases with some of the variables zero very well, but this can be done without too much more trouble. —Boy Soprano II 15:02, 31 December 2007 (EST)