The subspace topology -- Topology video 5
25:30
a basis for a topology -- Topology Video 4
31:15
The closure and limit points -- Topology video 6
32:16
the metric topology -- Topology video 8
12:56
This integral is ridiculous.
33:59
the metric topology, sequences, and continuity -- Topology video 9
38:31
Open sets of real numbers -- Topology video 1
27:26
This open problem taught me what topology is
29:44