theorem
L30 ↗solution_impl
AlgebraicCurves.Places.Proofs.Place_one_le_ramificationIndexAlong.AlgebraicCurve.Place.solution_impl
Source context 3 commands
Surrounding namespaces, section variables, and local commands at this declaration.
section ProofImplementation
namespace AlgebraicCurves.Places.Proofs.Place_one_le_ramificationIndexAlong
open scoped _root_.AlgebraicCurve _root_.AlgebraicCurve.Place inLean source · statement
theorem AlgebraicCurve.Place.solution_impl
{K F F' : Type*} [Field K] [Field F] [Field F']
[Algebra K F] [Algebra K F']
(φ : F →ₐ[K] F') (hφ : φ.toRingHom.IsIntegral)
(w : AlgebraicCurve.Place K F') :
1 ≤ AlgebraicCurve.Place.ramificationIndexAlong φ w