1. Unit (ring theory)In mathematics, an invertible element or a unit in a ring R refers to any element u that has an inverse element in the multiplicative monoid of R, i.e. such element v that uv = vu = 1R, where 1R is the multiplicative identity element. The set of units of any ring is closed under multiplication (the product of two units is again a unit), and forms a group for this operation.
Read “Unit (ring theory)” on English Wikipedia
Read “可逆元” on Japanese Wikipedia
Read “Unit (ring theory)” on DBpedia
Read “Unit (ring theory)” on English Wikipedia
Read “可逆元” on Japanese Wikipedia
Read “Unit (ring theory)” on DBpedia
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