### 7.2.7 ring (plural)

Rings are used to describe properties of polynomials, ideals etc. Almost all computations in PLURAL require a basering. For a detailed description of the concept of rings see Rings and orderings.

Note: PLURAL usually works with global orderings (see PLURAL) but one can use certain local once when graded commutative rings are being used.

> 7.2.7.1 ring declarations (plural) |  |
> 7.2.7.2 ring operations (plural) |  |
> 7.2.7.3 ring related functions (plural) |  |

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