Definition:Set of Condensation Points

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Definition

Let $T = \left({S, \tau}\right)$ be a topological space.

Let $A$ be a subset of $S$.

The set of condensation points of $A$ is the set of all condensation points of $A$,

$A^0 = \left\{{x \in S:x}\right.$ is condensation point of $\left.{A}\right\}$


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