Mathlib Map

Structures · Algebra

IsDedekindFiniteMonoid

A monoid is Dedekind-finite if every left inverse is also a right inverse. It is more common to talk about Dedekind-finite rings, but https://arxiv.org/abs/2102.01598 does define Dedekind-finite monoids in §2.2.

Defined in
Mathlib.Algebra.Group.Defs
Shape
One type argument · adds mul_eq_one_symm

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Concrete types that are instances3

  • Matrix
  • Subtype
  • MulOpposite

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