∀ {𝕜 : Type u_1} [inst : NontriviallyNormedField 𝕜] {E : Type u_3} [inst_1 : NormedAddCommGroup E]
  [inst_2 : NormedSpace 𝕜 E] {f g : 𝕜 → E} {U : Set 𝕜},
  MeromorphicOn f U → f =ᶠ[Filter.codiscreteWithin U] g → IsOpen U → MeromorphicOn g U