English
imLm is the imaginary-part real-linear map, from K to ℝ, with smul compatibility.
Русский
imLm — линейное по отношению к ℝ отображение мнимой части от K в ℝ, с совместимостью smul.
LaTeX
$$$\text{imLm}: K \to_{\mathbb{R}} \mathbb{R} \text{ is linear}$$$
Lean4
/-- The real part in an `RCLike` field, as a continuous linear map. -/
noncomputable def reCLM : StrongDual ℝ K :=
reLm.mkContinuous 1 fun x => by
rw [one_mul]
exact abs_re_le_norm x