Abstract
A metric space X is separable if it contains a dense countable subset. A topological space is said to have a countable base if there exists a countable collection of open sets such that every open set can be written as a union of elements of this collection.
We think in generalities, but we live in details.
A.N. Whitehead (1861–1947)
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© 2016 Springer-Verlag London
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Coudène, Y. (2016). Topology and Measures. In: Ergodic Theory and Dynamical Systems. Universitext. Springer, London. https://doi.org/10.1007/978-1-4471-7287-1_18
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DOI: https://doi.org/10.1007/978-1-4471-7287-1_18
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