Connectedness
15:49
R is connected
22:38
Compactness
23:34
Is this one connected curve, or two? Bet you can't explain why...
1:19:41
Topology Lecture 18: Connectedness
20:47
The Concept So Much of Modern Math is Built On | Compactness
13:07
Weird Topological Spaces // Connected vs Path Connected vs Simply Connected
9:41
What is a Topological Space?
21:20