fact: Definition ehrnat_pp {X} {a : X} {u v : idpath a = idpath a} (p : u = 1) (q : 1 = v) (w : idpath a = idpath a) : (ehrnat p w [-] ehrnat q w) @ whiskerL _ (whiskerL_pp _ p q)^ = (whiskerR (whiskerR_pp _ p q)^ _) @ ehrnat (p @ q) w.
imports: HoTT(Basics Types)