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Oct 29, 2014 at 18:34 answer added Yanqi QIU timeline score: 4
Oct 29, 2014 at 18:08 comment added Yanqi QIU @BillJohnson, in fact yes, probably now I can produce myself an argument with his help.
Oct 29, 2014 at 18:06 comment added Bill Johnson Did you ask Gilles? He does not follow MO as far as I know.
Oct 29, 2014 at 17:18 comment added Yemon Choi Wrote a stupidly wrong answer before realizing mistake. Sorry
Oct 29, 2014 at 15:14 history asked Yanqi QIU CC BY-SA 3.0