English
There is a canonical R-linear inclusion map inrHom: M → tsze_R M given by the embedding inr.
Русский
Существует каноническое R-линейное вложение inrHom: M → tsze_R M, задаваемое вложением inr.
LaTeX
$$$\text{inrHom} : M \to_\mathrm{linear} tsze_{R} M \, (\text{toFun} := \mathrm{inr})$$$
Lean4
/-- The canonical `R`-linear inclusion `M → TrivSqZeroExt R M`. -/
@[simps apply]
def inrHom [Semiring R] [AddCommMonoid M] [Module R M] : M →ₗ[R] tsze R M :=
{ LinearMap.inr R R M with toFun := inr }