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Results tagged with gn.general-topology
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user 85926
Continuum theory, point-set topology, spaces with algebraic structure, foundations, dimension theory, local and global properties.
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When the boundary of any subset is compact?
Let $X$ be a Tychonoff space with no isolated points such that the boundary of any subset of $X$ is compact. Does it mean that $X$ is compact ? (If $X$ is a resolvable space then it is clearly compact …
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