Mathlib Map

Theorems · Inductive type · order theory

GroupCone

(G : Type u_1) → [CommGroup G] → Type u_1

A (positive) cone in an abelian group is a submonoid that does not contain both a and a⁻¹ for any non-identity a. This is equivalent to being the set of elements that are at least 1 in some order making the group into a partially ordered group.

Defined in
Mathlib.Algebra.Order.Group.Cone
Cited by
7 results in Mathlib
Foundations
Depth 1 from the axioms · uses no axioms
Assumes
CommGroup

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