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Nov 6, 2023 at 8:00 comment added Rafał Gruszczyński @PatrickR Simplified. Thanks.
Nov 6, 2023 at 7:58 history edited Rafał Gruszczyński CC BY-SA 4.0
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Nov 3, 2023 at 8:04 comment added Rafał Gruszczyński Yes, this is the nbhd filter at $x$.
Nov 3, 2023 at 5:36 comment added PatrickR The description of $\mathscr F$ seems overly complicated since the family of open nbhds of $x$ is already closed under finite intersections $V_1\cap\dots\cap V_n$. So $\mathscr F$ is just the nbhd filter at $x$, right?
Jul 15, 2015 at 22:15 vote accept Rafał Gruszczyński
Apr 8, 2015 at 2:51 answer added Joseph Van Name timeline score: 7
Apr 7, 2015 at 22:23 history asked Rafał Gruszczyński CC BY-SA 3.0