Point in Finite Metric Space is Isolated/Proof 2
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Theorem
Let $M = \struct {A, d}$ be a metric space.
Let $X \subseteq A$ such that $X$ is finite.
Let $x \in X$.
Then $x$ is isolated in $X$.
Proof
Therefore Point in Finite Hausdorff Space is Isolated‎ can be applied.
Hence the result.
$\blacksquare$