import NNG.Metadata import NNG.MyNat.Addition namespace MyNat -- TODO: Do we need these instances? -- instance addSemigroup : AddSemigroup ℕ := -- { -- zero := 0 -- } -- MyNat.addMonoid -- (after level 2) -- MyNat.addCommSemigroup -- (after level 4) -- MyNat.addCommMonoid -- (after level 4)