Skip to main content
6 events
when toggle format what by license comment
Mar 31, 2014 at 11:06 vote accept A.B.
Mar 30, 2014 at 20:10 answer added Geoff Robinson timeline score: 9
Mar 30, 2014 at 19:30 history edited A.B. CC BY-SA 3.0
added 5 characters in body
Mar 30, 2014 at 19:18 comment added A.B. I think it is equivalent because one can always divide by one of the elements since they are invertible. The product is invertible/0 iff it was already invertible/0, and the representation property gives this new sum. But sum of every 2 elements and the identity is actually what I'm interested in.
Mar 30, 2014 at 19:13 comment added Dima Pasechnik you wrote "sum of every 3 elements", meaning "sum of every 2 elements and the identity"...
Mar 30, 2014 at 18:55 history asked A.B. CC BY-SA 3.0