Topic summary

Metrizable

Metrizable

Extracted from the Wikipedia article Metrizable space.

Properties

Metrizable spaces inherit all topological properties from metric spaces. For example, they are Hausdorffparacompact spaces (and hence normal and Tychonoff) and first-countable. However, some properties of the metric, such as completeness, cannot be said to be inherited. This is also true of other structures linked to the metric. A metrizable uniform space, for example, may have a different set of contraction maps than a metric space to which it is homeomorphic.