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A generalization of power-associativity
Another additive subgroup of A which will be useful is C 1/2 = C e (l/2) = {x 132/εI?1/2 € y(2R e -I) -x).It is easy to see that C 1/2 c A 1/2 c l? 1/2 * THEOREM 1 Let A be a ring satisfying (1) with an idempotent …