delta system lemma

If S is a set of finite setsMathworldPlanetmath such that |S|=1 then there is a SS such that |S|=1 and S is aΔ-system.

Title delta system lemma
Canonical name DeltaSystemLemma
Date of creation 2013-03-22 12:55:00
Last modified on 2013-03-22 12:55:00
Owner Henry (455)
Last modified by Henry (455)
Numerical id 6
Author Henry (455)
Entry type Theorem
Classification msc 03E99
Related topic DeltaSystem