Relatively closed

Definition

A subset [ilmath]A[/ilmath] is relatively closed in [ilmath]Y[/ilmath] where [ilmath]Y[/ilmath] is a subspace of the topological space [ilmath](X,\mathcal{J})[/ilmath] if [ilmath]A[/ilmath] is closed in [ilmath]Y[/ilmath]

See also

• Relatively open
• Closed set