3-Set Theory-Set Types-Interval

closed set

Sets {closed set, interval} can contain limit point at boundary.

derived set

Sets {derived set} can have other-set limit points.

open set

Sets {open set} can contain no boundary points and so have only interior points.

perfect set

All closed-set {perfect set} points can be at the limit.

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3-Set Theory-Set Types

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Date Modified: 2022.0225