Understand The Baire Category Theorem: Dense Sets, Nowhere Dense Sets, & Infinity
17:44
The Alexander Subbase Theorem: help understanding the definitions and the proof
10:20
The Primitive Element Situation is Crazy
12:52
Piecewise Continuous Linear Functions are Dense Among Continuous Functions
38:31
Conjuntos abertos de números reais -- Vídeo de topologia 1
9:30
What are Catalan Numbers?
11:54
Baire Category Theorem
20:47
The Concept So Much of Modern Math is Built On | Compactness
18:04