Metric Space is Fully T4
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Theorem
Let $M = \left({A, d}\right)$ be a metric space.
Then $M$ is a fully $T_4$ space.
Proof
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Sources
- Lynn Arthur Steen and J. Arthur Seebach, Jr.: Counterexamples in Topology (1970)... (previous)... (next): $\text{I}: \ \S 5$
