402.3A1 Interior Points and the Interior of a Set

Описание к видео 402.3A1 Interior Points and the Interior of a Set

Which points of a set have "breathing room" within the set? These are the set's interior points. We define ε-neighborhoods, interior points, and the interior of a set. See the playlist: http://matthematics.com/real

0:00 Introduction
0:36 Motivation for Interior Points
2:10 Definition of ε-Neighborhood
4:10 Definition of Interior Point of A
4:31 Definition of Interior of a Set
4:41 Example

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