Theorems · Definition · commutative algebra
RingHom.CodescendsAlong
({R S : Type u} → [inst : CommRing R] → [inst_1 : CommRing S] → (R →+* S) → Prop) →
({R S : Type u} → [inst : CommRing R] → [inst_1 : CommRing S] → (R →+* S) → Prop) → PropA property of ring homomorphisms Q codescends along Q' if whenever
R' →+* R' ⊗[R] S satisfies Q and R →+* R' satisfies Q', then R →+* S satisfies Q.
- Defined in
- Mathlib.RingTheory.RingHomProperties
- Cited by
- 17 results in Mathlib
- Foundations
- Depth 12 from the axioms · uses no axioms
Around this declaration
Dashed lines are statement dependencies; solid lines are citations in proofs.
Cites6
Mathlib declarations this one mentions in its statement or cites explicitly in its proof. Plumbing is filtered out.
- CommRingstatement and proof · cited by 17,173
- Algebraproof · cited by 11,388
- RingHomstatement and proof · cited by 10,189
- Algebra.algebraMapproof · cited by 4,706
- IsScalarTowerproof · cited by 3,896
- Algebra.IsPushoutproof · cited by 59
Cited by17
Results whose statement or proof uses this declaration.
- RingHom.CodescendsAlong.mkstatement · cited by 8
- AlgebraicGeometry.of_pullback_fst_Spec_of_codescendsAlongstatement and proof · cited by 2
- RingHom.FaithfullyFlat.codescendsAlong_injectivestatement · cited by 1
- RingHom.FaithfullyFlat.codescendsAlong_surjectivestatement · cited by 1
- RingHom.CodescendsAlong.algebraMap_tensorProductstatement and proof · cited by 1
- RingHom.CodescendsAlong.andstatement and proof · cited by 1
- AlgebraicGeometry.HasRingHomProperty.descendsAlongstatement and proof · cited by 1
- AlgebraicGeometry.HasRingHomProperty.descendsAlong_flatstatement and proof · cited by 0
- RingHom.Etale.codescendsAlong_faithfullyFlatstatement · cited by 0
- RingHom.FaithfullyFlat.codescendsAlong_bijectivestatement · cited by 0
- AlgebraicGeometry.HasAffineProperty.descendsAlong_of_affineAndstatement and proof · cited by 0
- RingHom.Finite.codescendsAlong_faithfullyFlatstatement · cited by 0