No. Every infinite dimensional topological vector space is not
locally compact. See the Wikipedia article on locally compact
spaces.
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In mathematics, a zero-dimensional topological space is a
topological space that ... any point in the space is contained in
exactly one open set of this refinement.
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A topological space is simply a set, B, with topology t (see the related link for a definition), and is often denoted as B, t which is similar to how a metric space is often denoted; B, D.
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There does not seem to be an under vector room, but there is
vector space. Vector space is a structure that is formed by a
collection of vectors. This is a term in mathematics.