# Category:Regular Closed Sets

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This category contains results about **Regular Closed Sets**.

Let $T$ be a topological space.

Let $A \subseteq T$.

Then $A$ is **regular closed in $T$** if and only if:

- $A = A^{\circ -}$

## Pages in category "Regular Closed Sets"

The following 4 pages are in this category, out of 4 total.