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Aug 23, 2017 at 3:59 vote accept CommunityBot
Aug 23, 2017 at 0:59 comment added Mohan As I commented in MSE, for a finite ring, any non-zero divisor is a unit and thus you may as well assume $S=\{1\}$.
Aug 22, 2017 at 20:50 answer added MTyson timeline score: 3
Aug 22, 2017 at 20:15 review First posts
Aug 22, 2017 at 20:33
Aug 22, 2017 at 20:14 history asked user111492 CC BY-SA 3.0