AlgebraicCurves.Divisors.Semilinear.Proofs.SemilinearAut_pushforwardAlong_smul.solution
Source context 5 commands
Surrounding namespaces, section variables, and local commands at this declaration.
section ProofImplementation
namespace AlgebraicCurves.Divisors.Semilinear.Proofs.SemilinearAut_pushforwardAlong_smul
open AlgebraicCurve AlgebraicCurve.SemilinearAut
open scoped Pointwise
noncomputable sectionLean source · statement
theorem solution {K F F' : Type*} [Field K] [Field F] [Field F'] [Algebra K F] [Algebra K F'] {g :
SemilinearAut K F} {g' : SemilinearAut K F'} (φ : F →ₐ[K] F') (hφ : φ.toRingHom.IsIntegral) (hgg'
: IntertwinesAlong φ.toRingHom g g') (D : Divisor K F') : Divisor.pushforwardAlong φ hφ (g' • D)
= g • Divisor.pushforwardAlong φ hφ D