∀ {𝕜 : Type u_1} {A : Type u_2} [inst : NontriviallyNormedField 𝕜] [inst_1 : NormedRing A] [inst_2 : CompleteSpace A]
  [inst_3 : NormedAlgebra 𝕜 A],
  Function.RightInverse (fun f => ⟨f.toContinuousLinearMap, ⋯⟩) WeakDual.CharacterSpace.toAlgHom