# dense (in a poset)

If $(P,\leq)$ 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 $q\leq p$.

Title dense (in a poset) DenseinAPoset 2013-03-22 12:55:58 2013-03-22 12:55:58 Henry (455) Henry (455) 4 Henry (455) Definition msc 06A99 Dense