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Timeline for Requirement for connected sets

Current License: CC BY-SA 4.0

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Mar 17, 2019 at 17:05 comment added Robert Israel @cherry $v$ is in $V$, which is open. Thus there is a neighbourhood of $v$ which is disjoint from $U$, so $v \notin \overline{U}$.
Mar 16, 2019 at 6:37 comment added cherry Can you explain how v does not belongs to closure of U. I don't think anything is stopping from this. Of course then s would be zero.
Mar 15, 2019 at 14:53 history edited Todd Trimble CC BY-SA 4.0
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Mar 15, 2019 at 14:33 history answered Robert Israel CC BY-SA 4.0