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Theorems · Inductive type · order theory

CanonicallyOrderedMul

(α : Type u_1) → [Mul α] → [LE α] → Prop

An ordered monoid is CanonicallyOrderedMul if the ordering coincides with the divisibility relation, which is to say, a ≤ b iff there exists c with b = a * c. Examples seem rare; it seems more likely that the OrderDual of a naturally-occurring lattice satisfies this than the lattice itself (for example, dual of the lattice of ideals of a PID or Dedekind domain satisfy this; collections of all things ≤ 1 seem to be more natural that collections of all things ≥ 1).

Defined in
Mathlib.Algebra.Order.Monoid.Canonical.Defs
Cited by
51 results in Mathlib
Foundations
Depth 1 from the axioms · uses no axioms
Assumes
MulLE

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