Number of posts : 194 Age : 31 Location : In 4 Hummies forum !! Where I LIVE Humor : I have no Gender !! YAY I'M a SUB SPECIES Registration date : 2007-12-05
Subject: SETS USAMO PROBELMS Mon Jan 07, 2008 10:17 pm
Let S be a set containing n^2+n-1 elements, for some positive integer n. Suppose that the n-element subsets of S are partitioned into two classes. Prove that there are at least n pairwise disjoint sets in the same class.
Subject: SETS USAMO PROBELMS 
Mon Jan 07, 2008 10:17 pm
