4.3.11 Show that a set E is closed if and only if E = E_
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This means that every limit point of E is also in E. Let's denote the set of limit points of E as E'. Now, we want to show that E = E'. To do this, we need to show that every element in E is also in E', and every element in E' is also in E. First, let x be an Show more…
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