Mathlib Map

Theorems · Theorem · commutative algebra

IsLocalization.eq_iff_exists

∀ {R : Type u_1} [inst : CommSemiring R] (M : Submonoid R) (S : Type u_2) [inst_1 : CommSemiring S]
  [inst_2 : Algebra R S] [IsLocalization M S] {x y : R}, (algebraMap R S) x = (algebraMap R S) y ↔ ∃ c, ↑c * x = ↑c * y

The kernel of algebraMap is equal to the annihilator by map_units'

Defined in
Mathlib.RingTheory.Localization.Defs
Cited by
30 results in Mathlib
Foundations
Depth 22 from the axioms · uses propext, Quot.sound
Assumes
CommSemiringCommSemiringAlgebraIsLocalization

Around this declaration

Dashed lines are statement dependencies; solid lines are citations in proofs.

IsLocalization.isLocalization_of_algEquiv · cited by 11IsLocalization.isLocaliza…IsLocalization.isLocalization_of_submonoid_le · cited by 5IsLocalization.isLocaliza…IsLocalization.mk'_mem_map_algebraMap_iff · cited by 5IsLocalization.mk'_mem_ma…IsLocalization.integralClosure · cited by 3IsLocalization.integralCl…Algebra.ZariskisMainProperty.exists_fg_and_exists_notMem_and_awayMap_bijective · cited by 3ZariskisMainProperty.exis…RingHom.surjective_localRingHom_iff · cited by 3RingHom.surjective_localR…MaximalSpectrum.toPiLocalization_injective · cited by 3MaximalSpectrum.toPiLocal…IsLocalization.exists_smul_mem_of_mem_adjoin · cited by 2IsLocalization.exists_smu…IsLocalization.isLocalization_of_is_exists_mul_mem · cited by 2IsLocalization.isLocaliza…IsLocalization.under_map_of_isPrimary_disjoint · cited by 2IsLocalization.under_map_…IsLocalization.ideal_eq_iInf_under_map_away · cited by 2IsLocalization.ideal_eq_i…Localization.algebraMap_injective_of_span_eq_top · cited by 2Localization.algebraMap_i…AlgebraicGeometry.exists_eq_pow_mul_of_is_compact_of_quasi_separated_space_aux · cited by 1AlgebraicGeometry.exists_…Localization.exists_awayMap_bijective_of_localRingHom_bijective · cited by 1Localization.exists_awayM…Localization.exists_finite_awayMapₐ_of_surjective_awayMapₐ · cited by 1Localization.exists_finit…DFunLike.coe · cited by 62936DFunLike.coeAlgebra · cited by 11388AlgebraCommSemiring · cited by 10911CommSemiringRingHom · cited by 10189RingHomAlgebra.algebraMap · cited by 4706Algebra.algebraMapSubmonoid · cited by 3086SubmonoidIsLocalization · cited by 636IsLocalizationIsLocalization.toLocalizationMap · cited by 69IsLocalization.toLocaliza…Submonoid.LocalizationMap.eq_iff_exists · cited by 9LocalizationMap.eq_iff_ex…IsLocalization.eq_iff_existsCITED BYCITES

Cites9

Mathlib declarations this one mentions in its statement or cites explicitly in its proof. Plumbing is filtered out.

Cited by30

Results whose statement or proof uses this declaration.