Relations of Numerical Monoids

Let M = Mon(γ) be a numerical monoid (⊆ ℕ) with a given system γ = (γ₀,…,γ _n ) of positive generators. For every commutative ring A the canonical surjective monoid homomorphism π γ : ℕ n + 1 → M https://s3-euw1-ap-pe-df-pch-content-public-p.s3.eu-west-1.amazonaws.com/9780429064265/27e88de8-b4c2-47de-a1e8-3cf9bc1ec436/content/unequ4_23_1.tif"/>