∀ {X : Type u_2} {Y : Type u_3} (Z : Type u_4) [inst : TopologicalSpace X] [inst_1 : TopologicalSpace Y]
  [inst_2 : TopologicalSpace Z] (f : C(X, Y)) (g : C(Y, Z)), (ContinuousMap.compRightContinuousMap Z f) g = g.comp f