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Timeline for Largest Hausdorff quotient

Current License: CC BY-SA 4.0

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Aug 5, 2022 at 20:26 comment added PatrickR For a simpler example where the quotient by the "obvious" relation is not $T_2$, see topospaces.subwiki.org/wiki/Hausdorffization (example repeated from 4.16 in Bart van Munster's citeseerx.ist.psu.edu/viewdoc/…)
Nov 6, 2020 at 8:02 comment added YCor "above" is not a well-defined MO notion :)
Nov 5, 2020 at 22:47 history answered Gro-Tsen CC BY-SA 4.0