fact: Definition equiv_dp_paths_FFlr {A B} {f : A -> B} {g : B -> A} {x1 x2 : A} (p : x1 = x2) (q : g (f x1) = x1) r : ((ap g (ap f p))^ @ q) @ p = r <~> DPath (fun x : A => g (f x) = x) p q r.
imports: Basics Types.Paths Types.Sigma Types.Forall