TheoremBase

A Uniformly Continuous Map Between Metric Spaces Is Continuous

A map from a subset of a metric space into a metric space that is uniformly continuous on the subset is continuous on it.

Statement

In the setting of The Real Numbers, with the Natural Numbers, Integers and Rationals Identified with Subsets of the Reals, and Completeness, let (X,dX)(X,d_{X}) and (Y,dY)(Y,d_{Y}) be metric spaces, let A⊆XA\subseteq X and let f:A→Yf:A\to Y be uniformly continuous on AA.

Then ff is continuous on AA.

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