fact: Definition iso_moveR_Vp `(p : morphism C x y) `(q : morphism C x z) `(@IsIsomorphism C z y r) : p = (r o q) -> (r^-1 o p) = q.
imports: Category.Core Functor.Core HoTT.Tactics Basics.Trunc Basics.Tactics Types.Sigma Equivalences