fact: Definition term_ind_HP (P: ∏ (s: sorts σ), term σ s → UU) := ∏ (nm: names σ) (v: (term σ)⋆ (arity nm)) (IH: hvec (h1map_vec P v)) , P (sort nm) (build_term nm v).
imports: UniMath.MoreFoundations.Notations UniMath.MoreFoundations.PartA UniMath.Combinatorics.Maybe UniMath.Algebra.Universal.SortedTypes UniMath.Algebra.Universal.Signatures