Valerie said:For my homework, I have to find a counterexample for this: (with S being a subset of the reals.)
If P is the set of all isolated points of S, then P is a closed set.
I don't quite understand the concept of isolated points, which might be why I can't figure out a counterexample.
Real Analysis is a branch of mathematics that deals with the properties and operations of real numbers. It involves the study of functions, sequences, limits, continuity, differentiation, and integration.
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