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Let R be a non-commutative ring . Suppose that the number of non-units of R is finite . Can we say that R is a finite ring?
zhentil said:If R and F are rings, then RxF is a ring. In particular, if R is a finite non-commutative ring and F is a field...
Landau said:then RxF is an infinite non-commutative ring...
so...