fact: Definition transport_paths_lFFr {A B : Type} {f : A -> B} {g : B -> A} {x1 x2 : A} (p : x1 = x2) (q : x1 = g (f x1)) : transport (fun x => x = g (f x)) p q = p^ @ q @ (ap g (ap f p)).
imports: Basics.Overture Basics.Equivalences Basics.PathGroupoids Basics.Tactics