theorem
L31 ↗evalAt_add_of_mem
AlgebraicCurves.Places.Proofs.Place_taylorRem_smul.ProofAuxJetT4.evalAt_add_of_mem
Source context 6 commands
Surrounding namespaces, section variables, and local commands at this declaration.
section ProofImplementation
namespace AlgebraicCurves.Places.Proofs.Place_taylorRem_smul
open AlgebraicCurve AlgebraicCurve.Place
namespace ProofAuxJetT4
open AlgebraicCurve AlgebraicCurve.Place
variable {K F : Type*} [Field K] [Field F] [Algebra K F]Lean source · statement
theorem evalAt_add_of_mem (v : Place K F) (hv : v.IsRational) {f g : F}
(hf : f ∈ v.toValuationSubring) (hg : g ∈ v.toValuationSubring) :
v.evalAt (f + g) = v.evalAt f + v.evalAt g