[a,b] is compact

Описание к видео [a,b] is compact

In this video, I give a direct proof that the interval [a,b] is compact, without using the Heine-Borel Theorem. It's elementary, but not easy, my dear Watson!

Heine-Borel Theorem:    • Heine Borel Theorem  
Topology Playlist:    • Topology  
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