Mathlib Map

Structures · Algebra

IsLocalRing

A semiring is local if it is nontrivial and a or b is a unit whenever a + b = 1. Note that IsLocalRing is a predicate.

Defined in
Mathlib.RingTheory.LocalRing.Defs
Shape
One type argument · adds isUnit_or_isUnit_of_add_one

Extends1

Extended by3

Concrete types that are instances10

  • Nat
  • CommRingCat.carrier
  • TensorProduct
  • PadicInt
  • Localization
  • MvPowerSeries
  • AdicCompletion
  • DualNumber
  • HomogeneousLocalization.AtPrime
  • Subtype

How is a type an instance?

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Assumed by378

Ancestors2