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May 17, 2016 at 21:11 vote accept D. S. Park
Apr 22, 2016 at 21:08 comment added Julian Rosen Said another way, the existence of the basis would imply the representation ring decomposes as an infinite direct sum of rings, which cannot be unital.
Apr 22, 2016 at 21:04 history answered Julian Rosen CC BY-SA 3.0