# nLab nowhere dense set

Nowhere dense sets

# Nowhere dense sets

## Definition

A subset $A\subseteq X$ of a topological space $X$ is called nowhere dense (alias rare) if the interior of its closure is empty:

$Int(Cl(A)) = \emptyset .$

Last revised on May 27, 2020 at 13:31:25. See the history of this page for a list of all contributions to it.