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Chapter 8 Open Sets in Metric Spaces
Focus Questions
What is an open set in a metric space?
What is an interior point of a subset of a metric space? How are interior points related to open sets?
What is the interior of a set? How is the interior of a set related to open sets?
How can we use open sets to determine the continuity of a function?
What important properties do open sets have in relation to unions and intersections?
