English
If each pair (m_i, n) commutes, then mulLeftMap equals mulRightMap.
Русский
Если каждая пара (m_i, n) коммутирует, то mulLeftMap равен mulRightMap.
LaTeX
$$mulLeftMap_eq_mulRightMap_of_commute {R : Type*} [Semiring R] {S : Type*} [Semiring S] [Module R S] [SMulCommClass R R S] [IsScalarTower R S S] {M : Submodule R S} (N : Submodule R S) {ι : Type*} (m : ι → M) (hc : ∀ i (n : N), Commute (m i).1 n.1) :
mulLeftMap N m = mulRightMap N m$$
Lean4
theorem mulLeftMap_eq_mulRightMap {S : Type*} [CommSemiring S] [Module R S] [SMulCommClass R R S] [SMulCommClass R S S]
[IsScalarTower R S S] {M : Submodule R S} (N : Submodule R S) {ι : Type*} (m : ι → M) :
mulLeftMap N m = mulRightMap N m :=
mulLeftMap_eq_mulRightMap_of_commute N m fun _ _ ↦ mul_comm _ _