fact: Definition ap_sig_rec_path_sigma {A : Type} (P : A -> Type) {Q : Type} (x1 x2:A) (p:x1=x2) (y1:P x1) (y2:P x2) (q:p # y1 = y2) (d : forall a, P a -> Q) : ap (sig_rec _ _ Q d) (path_sigma' P p q) = (transport_const p _)^ @ (ap ((transport (fun _ => Q) p) o (d x1)) (transport_Vp _ p y1))^ @ (transport_arrow p _ _)^ @ ap10 (apD d p) (p # y1) @ ap (d x2) q.
imports: HoTT.Basics Types.Arrow Types.Paths