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General Topology and Its Relations to Modern Analysis and Algebra IV978-3-540-37108-3Series ISSN 0075-8434 Series E-ISSN 1617-9692
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https://doi.org/10.1007/978-1-4757-3038-8 countable, first countable, hereditarily separable, sequentially compact non-compact space X. The one point compactification X* of X is a compact, T., C-space (meaning X* is of countable tightness) which is not sequential. We also construct a compact, T., C-space Y which is not sequential using onl
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Some recent applications of ultrafilters to topology,
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