Countable + P space => Alexandrov#1776
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The theorem also works with countable replaced by locally countable. |
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Co-authored-by: Patrick Rabau <70125716+prabau@users.noreply.github.com>
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We need this theorem for P-space =>$\alpha_1$ . (both theorems do not actually give new traits but we should have them for completeness, see this) comment.
This PR has high priority