If `J^k ≤ I ≤ J`, then a module is `I`-adically complete iff it is `J`-adically complete.
ProvedTypeDensity.adic_complete_iff_of_pow_letype-density
If J^k ≤ I ≤ J, then a module is I-adically complete iff it is J-adically complete.
Preamble
import Definitions.Def_TypeDensity_Basic import Definitions.Def_TypeDensity_Measure_AdicCylinders import Definitions.Def_TypeDensity_Measure_HenselProducts import Definitions.Def_TypeDensity_Unramified_Extension 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 Polynomial IsLocalRing MeasureTheory
Formal statement
theorem TypeDensity.adic_complete_iff_of_pow_le (R M : Type) [CommRing R] [AddCommGroup M] [Module R M]
(I J : Ideal R) (k : ℕ) (h1 : J ^ k ≤ I) (h2 : I ≤ J) :
IsAdicComplete I M ↔ IsAdicComplete J M := by sorrySource
TypeDensity/Unramified/Extension.lean#L251-L279