English
If the first and last modules in an exact sequence are Noetherian, then the middle module is Noetherian.
Русский
Если первая и последняя модули в точной последовательности — Noetherian, то и средняя модуль — Noetherian.
LaTeX
$$$[IsNoetherian R M] \wedge [IsNoetherian R P]\Rightarrow IsNoetherian R N$$
Lean4
theorem isNoetherian_of_ker_bot [IsNoetherian R P] (f : M →ₗ[R] P) (hf : LinearMap.ker f = ⊥) : IsNoetherian R M :=
isNoetherian_of_linearEquiv (LinearEquiv.ofInjective f <| LinearMap.ker_eq_bot.mp hf).symm