∀ {X : Type u_1} {R : Type u_2} [inst : Zero X] [inst_1 : TopologicalSpace X] [inst_2 : CommRing R]
  [inst_3 : TopologicalSpace R] [inst_4 : IsTopologicalRing R] (x : ContinuousMapZero X R), ↑(-x) = ↑(-x)