English
For a natural number n, the endomorphism n acting as a scalar (n • identity) maps m to n·m.
Русский
Для натурального числа n отображение n, действующее как умножение на единицу, отправляет m в n·m.
LaTeX
$$$ (n \mapsto n \cdot \mathrm{Id}_{M_1}) (m) = n \cdot m $$$
Lean4
instance semiring [ContinuousAdd M₁] : Semiring (M₁ →L[R₁] M₁)
where
__ := ContinuousLinearMap.monoidWithZero
__ := ContinuousLinearMap.addCommMonoid
left_distrib f g h := ext fun x => map_add f (g x) (h x)
right_distrib _ _ _ := ext fun _ => LinearMap.add_apply _ _ _
toNatCast := instNatCast
natCast_zero := zero_smul ℕ (1 : M₁ →L[R₁] M₁)
natCast_succ n := AddMonoid.nsmul_succ n (1 : M₁ →L[R₁] M₁)