∀ {X : Type u_1} {Y : Type u_3} (R : Type u_2) [inst : Zero X] [inst_1 : Zero Y] [inst_2 : TopologicalSpace X]
  [inst_3 : TopologicalSpace Y] [inst_4 : TopologicalSpace R] [inst_5 : CommSemiring R]
  [inst_6 : IsTopologicalSemiring R] (f : ContinuousMapZero X Y),
  ContinuousMapZero.comp 0 f = ContinuousMapZero.comp 0 f