∀ {𝕜 : Type u_1} [inst : RCLike 𝕜] {H : Type u_5} [inst_1 : NormedAddCommGroup H] [inst_2 : InnerProductSpace 𝕜 H]
  [inst_3 : CompleteSpace H] (e : H ≃ₗᵢ[𝕜] H), ↑(Unitary.linearIsometryEquiv.symm e) = ↑e.toContinuousLinearEquiv