∀ {𝔸 : Type u_3} [inst : Ring 𝔸] [inst_1 : TopologicalSpace 𝔸] [inst_2 : IsTopologicalRing 𝔸] (x : 𝔸),
  NormedSpace.exp x = if h : Nonempty (Algebra ℚ 𝔸) then (NormedSpace.expSeries ℚ 𝔸).sum x else 1