402.3B3 Closed Sets in the Real Line

Описание к видео 402.3B3 Closed Sets in the Real Line

Closed sets include their boundary because they (by this definition) include their accumulation points. See the playlist: http://matthematics.com/real

0:00 Introduction
0:21 The Open-Closed Spectrum
1:27 Motivation for Closed Sets
1:39 Include Accumulation = Include Boundary
4:36 Closed Intervals are Closed Sets
8:14 Are Discrete Sets Closed?
12:29 What's Next?

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