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Date: 2015-01-13 05:17:53Algebra Abstract algebra Mathematics Semigroup theory Algebraic structures Ring theory Commutative algebra Monoid Semigroup Cancellation property Inverse element Integral domain | TRANSACTIONS OF THE AMERICAN MATHEMATICAL SOCIETY Volume 364, Number 8, August 2012, Pages 3967–3992 SArticle electronically published on March 22, 2012Add to Reading ListSource URL: www.renyi.huDownload Document from Source WebsiteFile Size: 344,53 KBShare Document on Facebook |