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Definition: Ring

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Notation

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A ring is an algebraic structure \(R\) with two binary inner operations \( + \) and \(\cdot\), denoted by \((R, + ,\cdot)\), for which the following holds:

  1. \((R, + )\) is an Abelian group,
  2. \((R,\cdot)\) is a semigroup
  3. The distributivity law holds for all \(x,y,z\in R\).

If \((R,\cdot)\) is a monoid (i.e. if the semigroup contains a multiplicative identity), then the ring is called a unit ring (or ring with identity).

References

[577] Knauer Ulrich: “Diskrete Strukturen - kurz gefasst”, Spektrum Akademischer Verlag, 2001


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Definitions (2)

20 viewsRing Homomorphismdeleteedit
17 viewsCommutative Ringdeleteedit

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