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Theorems · Theorem · commutative algebra

Function.Injective.isDomain

∀ {α : Type u_1} {β : Type u_2} [inst : Semiring α] [IsDomain α] [inst_2 : Semiring β] {F : Type u_3}
  [inst_3 : FunLike F β α] [MonoidWithZeroHomClass F β α] (f : F), Function.Injective ⇑f → IsDomain β

Pullback IsDomain instance along an injective function.

Defined in
Mathlib.Algebra.Ring.Hom.InjSurj
Cited by
27 results in Mathlib
Foundations
Depth 13 from the axioms · uses no axioms
Assumes
SemiringIsDomainSemiringFunLikeMonoidWithZeroHomClass

Around this declaration

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

IsDomain.of_faithfulSMul · cited by 10IsDomain.of_faithfulSMulRing.ordFrac_eq_ord · cited by 4Ring.ordFrac_eq_ordisFractionRing_of_exists_eq_algebraMap_or_inv_eq_algebraMap_of_injective · cited by 2isFractionRing_of_exists_…NumberField.not_dvd_discr_iff_forall_liesOver · cited by 2NumberField.not_dvd_discr…Valuation.Integers.maximalIdeal_eq_setOfPred_le_v_algebraMap · cited by 2Integers.maximalIdeal_eq_…Valuation.Integers.maximalIdeal_pow_eq_setOfPred_le_v_algebraMap_pow · cited by 2Integers.maximalIdeal_pow…Subalgebra.LinearDisjoint.isDomain · cited by 2LinearDisjoint.isDomainNumberField.exists_not_isUnramifiedAt_int · cited by 2NumberField.exists_not_is…Algebra.TensorProduct.nontrivial_of_algebraMap_injective_of_isDomain · cited by 1TensorProduct.nontrivial_…Algebra.TensorProduct.not_isField_of_transcendental · cited by 1TensorProduct.not_isField…Valuation.Integers.isPrincipalIdealRing_iff_not_denselyOrdered · cited by 1Integers.isPrincipalIdeal…IsGaloisGroup.fixingSubgroup_range_algebraMap · cited by 1IsGaloisGroup.fixingSubgr…IsIntegrallyClosed.of_isIntegrallyClosedIn · cited by 1IsIntegrallyClosed.of_isI…NumberField.not_dvd_discr_iff_isUnramifiedIn · cited by 1NumberField.not_dvd_discr…Algebra.not_isStronglyTranscendental_of_weaklyQuasiFiniteAt · cited by 1Algebra.not_isStronglyTra…DFunLike.coe · cited by 62936DFunLike.coeSemiring · cited by 13802SemiringFunLike · cited by 2560FunLikeNontrivial · cited by 2416NontrivialIsDomain · cited by 2196IsDomainmap_zero · cited by 1614map_zeromap_mul · cited by 1137map_mulmap_one · cited by 861map_oneIsCancelMulZero · cited by 177IsCancelMulZeroMonoidWithZeroHomClass · cited by 37MonoidWithZeroHomClassFunction.Injective.isCancelMulZero · cited by 4Injective.isCancelMulZerodomain_nontrivial · cited by 2domain_nontrivialInjective.isDomainCITED BYCITES

Cites12

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

Cited by27

Results whose statement or proof uses this declaration.