let R be a ring in which x^3 = X for every x element of R. Prove that R is commutative

Printable View

- November 16th 2009, 08:12 AMGodisgoodRings
let R be a ring in which x^3 = X for every x element of R. Prove that R is commutative

- November 16th 2009, 10:29 PMNonCommAlg
some time ago i gave the best approach to solving this problem, and more problems of this kind, in this thread: http://www.mathhelpforum.com/math-he...-fun-36-a.html

if you still couldn't complete the proof, let us know.