fact: Record Algebra {σ : Signature} : Type := BuildAlgebra { carriers : Carriers σ ; operations : ∀ (u : Symbol σ), Operation carriers (σ u) }.
imports: HoTT.Utf8Minimal HoTT.Basics HoTT.Classes.implementations.ne_list HoTT.Classes.implementations.family_prod HoTT.Types HoTT.HSet HoTT.Classes.implementations.list