Y by rkm0959, BSWJY, roughlife, Adventure10, Mango247, kiyoras_2001
Let and be positive integers such that and and
be different subsets of . Prove that there is with the following property; let then in the set
at least elements are different from each other.
be different subsets of . Prove that there is with the following property; let then in the set
at least elements are different from each other.
This post has been edited 2 times. Last edited by seoneo, Apr 23, 2018, 8:58 AM
Reason: To fix errata.
Reason: To fix errata.