fact: Definition add : nat -> nat -> nat := rec_nat' (nat -> nat) (fun m => m) (fun n g m => (S (g m))).
imports: HoTT(Basics Types HProp HSet Projective TruncType Truncations Modalities.Notnot Modalities.Open Modalities.Closed BoundedSearch Equiv.BiInv Spaces.Nat Spaces.Torus.TorusEquivCircles Metatheory.Core Metatheory.FunextVarieties)