16:14

Real Analysis | The limit point of a set A⊆ℝ

17:56

Real Analysis | Closed Sets

16:16

infinitely many primes -- the topology way!

17:56

Real Analysis | The Heine-Borel Theorem

19:00

Real Analysis | Connected Sets

27:26

This open problem taught me what topology is

19:23

Real Analysis| Three limits of sequences by the definition.

19:22

Using topology for discrete problems | The Borsuk-Ulam theorem and stolen necklaces