arXiv · 2211.16545
We present examples of realcompact spaces with closed subsets that are C*-embedded but not C-embedded, including one where the closed set is a copy of the space of natural numbers.
Alan Dow, Jan van Mill, Klaas Pieter Hart, Hans Vermeer. 2022-11-29. Some realcompact spaces. https://arxiv.org/abs/2211.16545
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