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when toggle format what by license comment
Nov 24, 2023 at 9:33 history edited YCor CC BY-SA 4.0
extended to emphasize assumption on $S$
Nov 24, 2023 at 8:14 comment added YCor No problem, Keith Kearnes shot first (it was hard for me to read his answer but it might just be the same example, hidden behind more logic language). The "1 accepted answer only" fact is well-admitted on StackOverflow, so there's probably no point in discussing it on meta.
Nov 24, 2023 at 8:02 comment added Dominic van der Zypen Thanks for this beautiful answer. I had a hard time choosing which one to accept. Might write a meta.mathoverflow question on that (if there is not any yet).
Nov 24, 2023 at 6:33 history answered YCor CC BY-SA 4.0