fact: Definition map_path {Y} {f:ℕ->Y} (s:target_paths f) : ∏ n, map s (squash_element n) = map s (squash_element (S n)).
imports: UniMath.Foundations.All UniMath.MoreFoundations.NullHomotopies UniMath.MoreFoundations.Nat UniMath.MoreFoundations.Notations UniMath.MoreFoundations.PartA