Module (mathematics): Difference between revisions

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Nubtom (talk | contribs)
m Fixed typo
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SchwaWolf (talk | contribs)
Changed the incorrect claim that a module "generalizes" an abelian group. Hopefully not a controversial change as this was talked about extensively on the talk page.
Tag: Reverted
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{{Ring theory sidebar}}
{{Algebraic structures|module}}
In [[mathematics]], a '''module''' is a generalization of the notion of a [[vector space]] in which the [[Field (mathematics)|field]] of [[scalar (mathematics)|scalars]] is replaced by a (not necessarily [[Commutative_ring|commutative]]) [[Ring (mathematics)|ring]]. TheFor conceptinstance, ofan ''module''abelian alsogroup generalizestogether with the notionoperation of [[abelianadding group]],an sinceelement theto abelianitself groups<math>n\in\mathbb{Z}</math> aretimes exactlyforms thea modulesmodule overbut thenot ringa ofvector [[integer]]sspace.
 
Like a vector space, a module is an additive abelian group, and scalar multiplication is [[Distributive property|distributive]] over the operations of addition between elements of the ring or module and is [[Semigroup action|compatible]] with the ring multiplication.