In this paper, the author gave some commutativity theorems on semi-prime ring with variable identity, which is a generalization related.

给出了满足某可变恒等式的半质环的交换性定理，推广了已有的结论。

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Among the top contenders are a prime Doberman named Veni Vidi Vici that reached the best-of-seven final ring last year, a big-winning wire fox terrier, a German wirehaired pointer ranks as the nation's No. 1 show dog and a prized American foxhound.

WSJ: Pinstripe pedigree: Bronx Bowser joins Westminster