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Theorems · Theorem · commutative algebra

RingHom.toKerIsLocalization_isLocalizedModule

∀ {R : Type u_1} {S : Type u_2} {P : Type u_3} (Q : Type u_4) [inst : CommSemiring R] [inst_1 : CommSemiring S]
  [inst_2 : CommSemiring P] [inst_3 : CommSemiring Q] {M : Submonoid R} {T : Submonoid P} [inst_4 : Algebra R S]
  [inst_5 : Algebra P Q] [inst_6 : IsLocalization M S] [inst_7 : IsLocalization T Q] (g : R →+* P)
  (hT : Submonoid.map g M = T), IsLocalizedModule M (RingHom.toKerIsLocalization S Q g ⋯)

The canonical linear map from the kernel of g to the kernel of its localization is localizing. In other words, localization commutes with taking kernels.

Defined in
Mathlib.RingTheory.Localization.Algebra
Cited by
1 results in Mathlib
Foundations
Depth 59 from the axioms · uses propext, Classical.choice, Quot.sound
Assumes
CommSemiringCommSemiringCommSemiringCommSemiringAlgebraAlgebraIsLocalizationIsLocalization

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