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Miklós Schweizer 2007 Problem 2

Source:

March 3, 2017
Miklos Schweitzerset theory

Problem Statement

We partition the nn-element subsets of an n2+n1n^2+n-1-element set into two classes. Prove that one of the classes contains nn-many pairwise disjunct sets.
(translated by Miklós Maróti)