Point-finite_collection
Point-finite collection
Cover of a set
In mathematics, a collection or family of subsets of a topological space is said to be point-finite if every point of lies in only finitely many members of [1][2]
A metacompact space is a topological space in which every open cover admits a point-finite open refinement. Every locally finite collection of subsets of a topological space is also point-finite. A topological space in which every open cover admits a locally finite open refinement is called a paracompact space. Every paracompact space is therefore metacompact.[2]