Module

IsIntegral_adjoin_map_algHom.lean

Nyll.AlgebraicCurves.FunctionFields.IsIntegral_adjoin_map_algHom
1 declaration indexed from sourceView source ↗

Is Integral adjoin map alg Hom

Imports2
  • Mathlib.RingTheory.IntegralClosure.IsIntegral.Basic
  • Mathlib.Algebra.Algebra.Subalgebra.Lattice
Imported by1

Declarations

AlgebraicCurve.isIntegral_adjoin_map_algHom
Source context 2 commands

Surrounding namespaces, section variables, and local commands at this declaration.

section ProofImplementation
namespace AlgebraicCurves.FunctionFields.Proofs.IsIntegral_adjoin_map_algHom
theorem _root_.AlgebraicCurve.isIntegral_adjoin_map_algHom {K F F' : Type*} [CommRing K] [CommRing
  F] [CommRing F'] [Algebra K F] [Algebra K F'] (φ : F →ₐ[K] F') {j x : F} (hx : IsIntegral
  (Algebra.adjoin K {j}) x) : IsIntegral (Algebra.adjoin K {φ j}) (φ x)