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Mathematics > Logic
Title: Countably compact extensions and cardinal characteristics of the continuum
(Submitted on 13 Apr 2024)
Abstract: In this paper we show that the existence of certain first-countable compact-like extensions is equivalent to the equality between corresponding cardinal characteristics of the continuum. For instance, $\mathfrak b=\mathfrak s=\mathfrak c$ if and only if every regular first-countable space of weight $< \mathfrak c$ can be densely embedded into a regular first-countable countably compact space.
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