Closed subset of a compact set is compact | Compact set | Real analysis | Topology Popular Videos Every Singleton set of T2 space is Closed | Theorem | separation axioms | Topology January 10, 2021 Partition of Interval | Norm of Partition | Refinement | Definitions | Riemann-Stieltjes Integral April 14, 2021 A set is closed iff complement is open | Real analysis | metric space | Basic Topology February 2, 2021 Sup (A+B) = Sup A + Sup B | property | Supremum and infimum | Real analysis March 16, 2021 Description 3.3 Posted by Cheena Banga | Feb 2, 2021 | Compactness and connectedness, Real Analysis | 0 |