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Feb 23, 2014 at 13:36 vote accept Ali Taghavi
Feb 12, 2014 at 20:22 answer added Sergei Ivanov timeline score: 11
Feb 12, 2014 at 20:15 answer added Liviu Nicolaescu timeline score: 7
Feb 12, 2014 at 18:33 comment added Alex Degtyarev What about $N=\operatorname{id}$ and $\phi=F$?
Feb 12, 2014 at 18:01 history asked Ali Taghavi CC BY-SA 3.0