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How to understand the concept of compact space

Hello,

I am learning some analysis on my own and

what is the motivation to consider compactness?

eg. I do not understand why having the property of reducing a cover to a finite cover is important.

I'm sure there is a good answer to this and I'm interested to hear your replies!

--Alex

    Post Closed as "exact duplicate" by Robin Chapman, Harry Gindi, Wadim Zudilin, Greg Stevenson, Pete L. Clark

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