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Dec 1, 2020 at 4:46 comment added Peter Gerdes I’m unchecking this answer because I've heard from Minzhong Cai that he thinks the result is false so the answer doesn't confuse anyone who comes along. Let me know if that's incorrect.
May 16, 2018 at 11:23 comment added Peter Gerdes Thanks! It's always easier when someone else has already proved the result you want :-)
May 16, 2018 at 11:20 vote accept Peter Gerdes
Dec 1, 2020 at 4:43
May 16, 2018 at 3:47 history answered Theodore Slaman CC BY-SA 4.0