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Results tagged with gn.general-topology
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user 513474
Continuum theory, point-set topology, spaces with algebraic structure, foundations, dimension theory, local and global properties.
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Conditions for metrisability
If a normal, first countable space is the union of countably many open metrisable subspaces, must that space be metrisable?
Partial answers, which I proved in the 1980's, include:
(0) The answer is co …