dense (in a poset)

If $(P,\le )$ is a poset then a subset $Q\subseteq P$ is dense if for any $p\in P$ there is some $q\in Q$ such that $q\le p$.

Title	dense (in a poset)
Canonical name	DenseinAPoset
Date of creation	2013-03-22 12:55:58
Last modified on	2013-03-22 12:55:58
Owner	Henry (455)
Last modified by	Henry (455)
Numerical id	4
Author	Henry (455)
Entry type	Definition
Classification	msc 06A99
Related topic	Dense