English
The constant-linear map construction yields a continuous linear map from R to C(α, M) by sending r to the constant function m ↦ r·m, forming an element of ContinuousLinearMap.
Русский
Генерация константной линейной карты даёт непрерывное линейное отображение из R в C(α, M) по отображению r ↦ константную функцию m ↦ r·m.
LaTeX
$$$\text{const}: R \to C(α, M) \text{ is a ContinuousLinearMap.}$$$
Lean4
/-- The constant map `x ↦ y ↦ x` as a `ContinuousLinearMap`. -/
@[simps!]
def _root_.ContinuousLinearMap.const (α : Type*) [TopologicalSpace α] : M →L[R] C(α, M)
where
toFun m := .const α m
map_add' _ _ := rfl
map_smul' _ _ := rfl
cont := ContinuousMap.continuous_const'