Linear maps preserve adic congruences.
ProvedTypeDensity.linear_map_preserves_adic_congruencetype-density
Linear maps preserve adic congruences.
Preamble
import Definitions.Def_TypeDensity_Basic import Definitions.Def_TypeDensity_Measure_AdicCylinders import Definitions.Def_TypeDensity_Measure_HenselProducts import Mathlib.FieldTheory.RatFunc.Basic import Mathlib.MeasureTheory.Measure.Haar.Unique import Mathlib.NumberTheory.ArithmeticFunction.Moebius import Mathlib.NumberTheory.Padics.PadicIntegers import Mathlib.RingTheory.IntegralClosure.IntegralRestrict import Mathlib.RingTheory.MvPowerSeries.Basic import Mathlib.RingTheory.RamificationInertia.Basic import Mathlib.Topology.Algebra.Nonarchimedean.AdicTopology import Mathlib.Topology.Algebra.MvPolynomial import Mathlib.Algebra.Group.Pi.Units import Mathlib.Order.CompletePartialOrder import Mathlib.RingTheory.Henselian import Mathlib.RingTheory.Polynomial.Resultant.Basic import Mathlib.RingTheory.RegularLocalRing.Defs import Mathlib.RingTheory.SimpleRing.Principal set_option autoImplicit false open TypeDensity open MeasureTheory open scoped BigOperators ENNReal
Formal statement
theorem TypeDensity.linear_map_preserves_adic_congruence (O M N : Type) [CommRing O] [AddCommGroup M]
[Module O M] [AddCommGroup N] [Module O N] (I : Ideal O) (L : M →ₗ[O] N) (j : ℕ) (x y : M)
(h : adicCongr I j x y) :
adicCongr I j (L x) (L y) := by sorrySource
TypeDensity/Measure/HenselProducts.lean#L644-L651