ring_theory.dedekind_domain.selmer_group

Changes since the initial port

The following section lists changes to this file in mathlib3 and mathlib4 that occured after the initial port. Most recent changes are shown first. Hovering over a commit will show all commits associated with the same mathlib3 commit.

Changes in mathlib3

2032a878

(last sync)

Changes in mathlib3port

mathlib3

mathlib3port

08b63ab5

bump to nightly-2024-04-06-08

mathlib commit https://github.com/leanprover-community/mathlib/commit/65a1391a0106c9204fe45bc73a039f056558cb83

e34029c9

Diff

@@ -3,8 +3,8 @@ Copyright (c) 2022 David Kurniadi Angdinata. All rights reserved.
 Released under Apache 2.0 license as described in the file LICENSE.
 Authors: David Kurniadi Angdinata
 -/
-import Algebra.Hom.Equiv.TypeTags
-import Data.Zmod.Quotient
+import Algebra.Group.Equiv.TypeTags
+import Data.ZMod.Quotient
 import RingTheory.DedekindDomain.AdicValuation
 import RingTheory.Norm
 
@@ -179,7 +179,7 @@ end HeightOneSpectrum
 
 variable {S S' : Set <| HeightOneSpectrum R} {n : ℕ}
 
-/- ./././Mathport/Syntax/Translate/Basic.lean:641:2: warning: expanding binder collection (v «expr ∉ » S) -/
+/- ./././Mathport/Syntax/Translate/Basic.lean:642:2: warning: expanding binder collection (v «expr ∉ » S) -/
 #print IsDedekindDomain.selmerGroup /-
 /-- The Selmer group `K⟮S, n⟯`. -/
 def selmerGroup : Subgroup <| K/n

08b63ab5

bump to nightly-2024-03-17-08

mathlib commit https://github.com/leanprover-community/mathlib/commit/65a1391a0106c9204fe45bc73a039f056558cb83

22f01ce4

Diff

@@ -140,8 +140,8 @@ theorem valuation_of_unit_eq (x : Rˣ) :
   · exact v.valuation_le_one x
   · cases' x with x _ hx _
     change ¬v.valuation (algebraMap R K x) < 1
-    apply_fun v.int_valuation at hx 
-    rw [map_one, map_mul] at hx 
+    apply_fun v.int_valuation at hx
+    rw [map_one, map_mul] at hx
     rw [not_lt, ← hx, ← mul_one <| v.valuation _, valuation_of_algebra_map,
       mul_le_mul_left₀ <| left_ne_zero_of_mul_eq_one hx]
     exact v.int_valuation_le_one _
@@ -246,17 +246,17 @@ theorem fromUnit_ker [hn : Fact <| 0 < n] :
     rcases(QuotientGroup.eq_one_iff _).mp (Subtype.mk.inj hx) with ⟨⟨v, i, vi, iv⟩, hx⟩
     have hv : ↑(_ ^ n : Kˣ) = algebraMap R K _ := congr_arg Units.val hx
     have hi : ↑(_ ^ n : Kˣ)⁻¹ = algebraMap R K _ := congr_arg Units.inv hx
-    rw [Units.val_pow_eq_pow_val] at hv 
-    rw [← inv_pow, Units.inv_mk, Units.val_pow_eq_pow_val] at hi 
+    rw [Units.val_pow_eq_pow_val] at hv
+    rw [← inv_pow, Units.inv_mk, Units.val_pow_eq_pow_val] at hi
     rcases@IsIntegrallyClosed.exists_algebraMap_eq_of_isIntegral_pow R _ _ _ _ _ _ _ v _ hn.out
         (hv.symm ▸ isIntegral_algebraMap) with
       ⟨v', rfl⟩
     rcases@IsIntegrallyClosed.exists_algebraMap_eq_of_isIntegral_pow R _ _ _ _ _ _ _ i _ hn.out
         (hi.symm ▸ isIntegral_algebraMap) with
       ⟨i', rfl⟩
-    rw [← map_mul, map_eq_one_iff _ <| NoZeroSMulDivisors.algebraMap_injective R K] at vi 
-    rw [← map_mul, map_eq_one_iff _ <| NoZeroSMulDivisors.algebraMap_injective R K] at iv 
-    rw [Units.val_mk, ← map_pow] at hv 
+    rw [← map_mul, map_eq_one_iff _ <| NoZeroSMulDivisors.algebraMap_injective R K] at vi
+    rw [← map_mul, map_eq_one_iff _ <| NoZeroSMulDivisors.algebraMap_injective R K] at iv
+    rw [Units.val_mk, ← map_pow] at hv
     exact
       ⟨⟨v', i', vi, iv⟩, by
         simpa only [Units.ext_iff, powMonoidHom_apply, Units.val_pow_eq_pow_val] using

08b63ab5

bump to nightly-2023-12-20-06

mathlib commit https://github.com/leanprover-community/mathlib/commit/65a1391a0106c9204fe45bc73a039f056558cb83

058cd493

Diff

@@ -153,7 +153,7 @@ attribute [local semireducible] MulOpposite
 #print IsDedekindDomain.HeightOneSpectrum.valuationOfNeZeroMod /-
 /-- The multiplicative `v`-adic valuation on `Kˣ` modulo `n`-th powers. -/
 def valuationOfNeZeroMod (n : ℕ) : (K/n) →* Multiplicative (ZMod n) :=
-  (Int.quotientZmultiplesNatEquivZMod n).toMultiplicative.toMonoidHom.comp <|
+  (Int.quotientZMultiplesNatEquivZMod n).toMultiplicative.toMonoidHom.comp <|
     QuotientGroup.map (powMonoidHom n : Kˣ →* Kˣ).range (AddSubgroup.zmultiples (n : ℤ)).toSubgroup
       v.valuationOfNeZero
       (by

08b63ab5

bump to nightly-2023-09-24-06

mathlib commit https://github.com/leanprover-community/mathlib/commit/ce64cd319bb6b3e82f31c2d38e79080d377be451

5655435f

Diff

@@ -3,10 +3,10 @@ Copyright (c) 2022 David Kurniadi Angdinata. All rights reserved.
 Released under Apache 2.0 license as described in the file LICENSE.
 Authors: David Kurniadi Angdinata
 -/
-import Mathbin.Algebra.Hom.Equiv.TypeTags
-import Mathbin.Data.Zmod.Quotient
-import Mathbin.RingTheory.DedekindDomain.AdicValuation
-import Mathbin.RingTheory.Norm
+import Algebra.Hom.Equiv.TypeTags
+import Data.Zmod.Quotient
+import RingTheory.DedekindDomain.AdicValuation
+import RingTheory.Norm
 
 #align_import ring_theory.dedekind_domain.selmer_group from "leanprover-community/mathlib"@"08b63ab58a6ec1157ebeafcbbe6c7a3fb3c9f6d5"
 
@@ -179,7 +179,7 @@ end HeightOneSpectrum
 
 variable {S S' : Set <| HeightOneSpectrum R} {n : ℕ}
 
-/- ./././Mathport/Syntax/Translate/Basic.lean:635:2: warning: expanding binder collection (v «expr ∉ » S) -/
+/- ./././Mathport/Syntax/Translate/Basic.lean:641:2: warning: expanding binder collection (v «expr ∉ » S) -/
 #print IsDedekindDomain.selmerGroup /-
 /-- The Selmer group `K⟮S, n⟯`. -/
 def selmerGroup : Subgroup <| K/n

08b63ab5

bump to nightly-2023-08-17-09

mathlib commit https://github.com/leanprover-community/mathlib/commit/32a7e535287f9c73f2e4d2aef306a39190f0b504

60285dcc

Diff

@@ -186,7 +186,7 @@ def selmerGroup : Subgroup <| K/n
     where
   carrier := {x : K/n | ∀ (v) (_ : v ∉ S), (v : HeightOneSpectrum R).valuationOfNeZeroMod n x = 1}
   one_mem' _ _ := by rw [map_one]
-  mul_mem' _ _ hx hy v hv := by rw [map_mul, hx v hv, hy v hv, one_mul]
+  hMul_mem' _ _ hx hy v hv := by rw [map_mul, hx v hv, hy v hv, one_mul]
   inv_mem' _ hx v hv := by rw [map_inv, hx v hv, inv_one]
 #align is_dedekind_domain.selmer_group IsDedekindDomain.selmerGroup
 -/

08b63ab5

bump to nightly-2023-07-20-09

mathlib commit https://github.com/leanprover-community/mathlib/commit/8ea5598db6caeddde6cb734aa179cc2408dbd345

9c56d0dd

Diff

@@ -2,17 +2,14 @@
 Copyright (c) 2022 David Kurniadi Angdinata. All rights reserved.
 Released under Apache 2.0 license as described in the file LICENSE.
 Authors: David Kurniadi Angdinata
-
-! This file was ported from Lean 3 source module ring_theory.dedekind_domain.selmer_group
-! leanprover-community/mathlib commit 08b63ab58a6ec1157ebeafcbbe6c7a3fb3c9f6d5
-! Please do not edit these lines, except to modify the commit id
-! if you have ported upstream changes.
 -/
 import Mathbin.Algebra.Hom.Equiv.TypeTags
 import Mathbin.Data.Zmod.Quotient
 import Mathbin.RingTheory.DedekindDomain.AdicValuation
 import Mathbin.RingTheory.Norm
 
+#align_import ring_theory.dedekind_domain.selmer_group from "leanprover-community/mathlib"@"08b63ab58a6ec1157ebeafcbbe6c7a3fb3c9f6d5"
+
 /-!
 # Selmer groups of fraction fields of Dedekind domains
 
@@ -182,7 +179,7 @@ end HeightOneSpectrum
 
 variable {S S' : Set <| HeightOneSpectrum R} {n : ℕ}
 
-/- ./././Mathport/Syntax/Translate/Basic.lean:638:2: warning: expanding binder collection (v «expr ∉ » S) -/
+/- ./././Mathport/Syntax/Translate/Basic.lean:635:2: warning: expanding binder collection (v «expr ∉ » S) -/
 #print IsDedekindDomain.selmerGroup /-
 /-- The Selmer group `K⟮S, n⟯`. -/
 def selmerGroup : Subgroup <| K/n

08b63ab5

bump to nightly-2023-06-30-03

mathlib commit https://github.com/leanprover-community/mathlib/commit/9240e8be927a0955b9a82c6c85ef499ee3a626b8

397a8f48

Diff

@@ -4,7 +4,7 @@ Released under Apache 2.0 license as described in the file LICENSE.
 Authors: David Kurniadi Angdinata
 
 ! This file was ported from Lean 3 source module ring_theory.dedekind_domain.selmer_group
-! leanprover-community/mathlib commit 2032a878972d5672e7c27c957e7a6e297b044973
+! leanprover-community/mathlib commit 08b63ab58a6ec1157ebeafcbbe6c7a3fb3c9f6d5
 ! Please do not edit these lines, except to modify the commit id
 ! if you have ported upstream changes.
 -/
@@ -16,6 +16,9 @@ import Mathbin.RingTheory.Norm
 /-!
 # Selmer groups of fraction fields of Dedekind domains
 
+> THIS FILE IS SYNCHRONIZED WITH MATHLIB4.
+> Any changes to this file require a corresponding PR to mathlib4.
+
 Let $K$ be the field of fractions of a Dedekind domain $R$. For any set $S$ of prime ideals in the
 height one spectrum of $R$, and for any natural number $n$, the Selmer group $K(S, n)$ is defined to
 be the subgroup of the unit group $K^\times$ modulo $n$-th powers where each element has $v$-adic

2032a878

bump to nightly-2023-06-26-17

mathlib commit https://github.com/leanprover-community/mathlib/commit/fdc286cc6967a012f41b87f76dcd2797b53152af

53117b4d

Diff

@@ -85,6 +85,7 @@ variable {R : Type u} [CommRing R] [IsDomain R] [IsDedekindDomain R] {K : Type v
 
 namespace HeightOneSpectrum
 
+#print IsDedekindDomain.HeightOneSpectrum.valuationOfNeZeroToFun /-
 /-- The multiplicative `v`-adic valuation on `Kˣ`. -/
 def valuationOfNeZeroToFun (x : Kˣ) : Multiplicative ℤ :=
   let hx := IsLocalization.sec R⁰ (x : K)
@@ -92,7 +93,9 @@ def valuationOfNeZeroToFun (x : Kˣ) : Multiplicative ℤ :=
     (-(Associates.mk v.asIdeal).count (Associates.mk <| Ideal.span {hx.fst}).factors : ℤ) -
       (-(Associates.mk v.asIdeal).count (Associates.mk <| Ideal.span {(hx : R)}).factors : ℤ)
 #align is_dedekind_domain.height_one_spectrum.valuation_of_ne_zero_to_fun IsDedekindDomain.HeightOneSpectrum.valuationOfNeZeroToFun
+-/
 
+#print IsDedekindDomain.HeightOneSpectrum.valuationOfNeZeroToFun_eq /-
 @[simp]
 theorem valuationOfNeZeroToFun_eq (x : Kˣ) :
     (v.valuationOfNeZeroToFun x : ℤₘ₀) = v.Valuation (x : K) :=
@@ -106,7 +109,9 @@ theorem valuationOfNeZeroToFun_eq (x : Kˣ) :
   any_goals exact IsDomain.to_nontrivial R
   rfl
 #align is_dedekind_domain.height_one_spectrum.valuation_of_ne_zero_to_fun_eq IsDedekindDomain.HeightOneSpectrum.valuationOfNeZeroToFun_eq
+-/
 
+#print IsDedekindDomain.HeightOneSpectrum.valuationOfNeZero /-
 /-- The multiplicative `v`-adic valuation on `Kˣ`. -/
 def valuationOfNeZero : Kˣ →* Multiplicative ℤ
     where
@@ -116,12 +121,16 @@ def valuationOfNeZero : Kˣ →* Multiplicative ℤ
     rw [← WithZero.coe_inj, WithZero.coe_mul]
     simp only [valuation_of_ne_zero_to_fun_eq]; exact map_mul _ _ _
 #align is_dedekind_domain.height_one_spectrum.valuation_of_ne_zero IsDedekindDomain.HeightOneSpectrum.valuationOfNeZero
+-/
 
+#print IsDedekindDomain.HeightOneSpectrum.valuationOfNeZero_eq /-
 @[simp]
 theorem valuationOfNeZero_eq (x : Kˣ) : (v.valuationOfNeZero x : ℤₘ₀) = v.Valuation (x : K) :=
   valuationOfNeZeroToFun_eq v x
 #align is_dedekind_domain.height_one_spectrum.valuation_of_ne_zero_eq IsDedekindDomain.HeightOneSpectrum.valuationOfNeZero_eq
+-/
 
+#print IsDedekindDomain.HeightOneSpectrum.valuation_of_unit_eq /-
 @[simp]
 theorem valuation_of_unit_eq (x : Rˣ) :
     v.valuationOfNeZero (Units.map (algebraMap R K : R →* K) x) = 1 :=
@@ -137,9 +146,11 @@ theorem valuation_of_unit_eq (x : Rˣ) :
       mul_le_mul_left₀ <| left_ne_zero_of_mul_eq_one hx]
     exact v.int_valuation_le_one _
 #align is_dedekind_domain.height_one_spectrum.valuation_of_unit_eq IsDedekindDomain.HeightOneSpectrum.valuation_of_unit_eq
+-/
 
 attribute [local semireducible] MulOpposite
 
+#print IsDedekindDomain.HeightOneSpectrum.valuationOfNeZeroMod /-
 /-- The multiplicative `v`-adic valuation on `Kˣ` modulo `n`-th powers. -/
 def valuationOfNeZeroMod (n : ℕ) : (K/n) →* Multiplicative (ZMod n) :=
   (Int.quotientZmultiplesNatEquivZMod n).toMultiplicative.toMonoidHom.comp <|
@@ -150,13 +161,16 @@ def valuationOfNeZeroMod (n : ℕ) : (K/n) →* Multiplicative (ZMod n) :=
         exact
           ⟨v.valuation_of_ne_zero x, by simpa only [powMonoidHom_apply, map_pow, Int.toAdd_pow]⟩)
 #align is_dedekind_domain.height_one_spectrum.valuation_of_ne_zero_mod IsDedekindDomain.HeightOneSpectrum.valuationOfNeZeroMod
+-/
 
+#print IsDedekindDomain.HeightOneSpectrum.valuation_of_unit_mod_eq /-
 @[simp]
 theorem valuation_of_unit_mod_eq (n : ℕ) (x : Rˣ) :
     v.valuationOfNeZeroMod n (Units.map (algebraMap R K : R →* K) x : K/n) = 1 := by
   rw [valuation_of_ne_zero_mod, MonoidHom.comp_apply, ← QuotientGroup.coe_mk',
     QuotientGroup.map_mk', valuation_of_unit_eq, QuotientGroup.mk_one, map_one]
 #align is_dedekind_domain.height_one_spectrum.valuation_of_unit_mod_eq IsDedekindDomain.HeightOneSpectrum.valuation_of_unit_mod_eq
+-/
 
 end HeightOneSpectrum
 
@@ -166,6 +180,7 @@ end HeightOneSpectrum
 variable {S S' : Set <| HeightOneSpectrum R} {n : ℕ}
 
 /- ./././Mathport/Syntax/Translate/Basic.lean:638:2: warning: expanding binder collection (v «expr ∉ » S) -/
+#print IsDedekindDomain.selmerGroup /-
 /-- The Selmer group `K⟮S, n⟯`. -/
 def selmerGroup : Subgroup <| K/n
     where
@@ -174,14 +189,18 @@ def selmerGroup : Subgroup <| K/n
   mul_mem' _ _ hx hy v hv := by rw [map_mul, hx v hv, hy v hv, one_mul]
   inv_mem' _ hx v hv := by rw [map_inv, hx v hv, inv_one]
 #align is_dedekind_domain.selmer_group IsDedekindDomain.selmerGroup
+-/
 
 scoped[SelmerGroup] notation K "⟮" S "," n "⟯" => @selmerGroup _ _ _ _ K _ _ _ S n
 
 namespace SelmerGroup
 
+#print IsDedekindDomain.selmerGroup.monotone /-
 theorem monotone (hS : S ≤ S') : K⟮S,n⟯ ≤ K⟮S',n⟯ := fun _ hx v => hx v ∘ mt (@hS v)
 #align is_dedekind_domain.selmer_group.monotone IsDedekindDomain.selmerGroup.monotone
+-/
 
+#print IsDedekindDomain.selmerGroup.valuation /-
 /-- The multiplicative `v`-adic valuations on `K⟮S, n⟯` for all `v ∈ S`. -/
 def valuation : K⟮S,n⟯ →* S → Multiplicative (ZMod n)
     where
@@ -189,7 +208,9 @@ def valuation : K⟮S,n⟯ →* S → Multiplicative (ZMod n)
   map_one' := funext fun v => map_one _
   map_mul' x y := funext fun v => map_mul _ x y
 #align is_dedekind_domain.selmer_group.valuation IsDedekindDomain.selmerGroup.valuation
+-/
 
+#print IsDedekindDomain.selmerGroup.valuation_ker_eq /-
 theorem valuation_ker_eq :
     valuation.ker = K⟮(∅ : Set <| HeightOneSpectrum R),n⟯.subgroupOf (K⟮S,n⟯) :=
   by
@@ -201,7 +222,9 @@ theorem valuation_ker_eq :
     · exact hx v hv
   · exact fun hx' => funext fun v => hx' v <| Set.not_mem_empty v
 #align is_dedekind_domain.selmer_group.valuation_ker_eq IsDedekindDomain.selmerGroup.valuation_ker_eq
+-/
 
+#print IsDedekindDomain.selmerGroup.fromUnit /-
 /-- The natural homomorphism from `Rˣ` to `K⟮∅, n⟯`. -/
 def fromUnit {n : ℕ} : Rˣ →* K⟮(∅ : Set <| HeightOneSpectrum R),n⟯
     where
@@ -211,7 +234,9 @@ def fromUnit {n : ℕ} : Rˣ →* K⟮(∅ : Set <| HeightOneSpectrum R),n⟯
   map_one' := by simpa only [map_one]
   map_mul' _ _ := by simpa only [map_mul]
 #align is_dedekind_domain.selmer_group.from_unit IsDedekindDomain.selmerGroup.fromUnit
+-/
 
+#print IsDedekindDomain.selmerGroup.fromUnit_ker /-
 theorem fromUnit_ker [hn : Fact <| 0 < n] :
     (@fromUnit R _ _ _ K _ _ _ n).ker = (powMonoidHom n : Rˣ →* Rˣ).range :=
   by
@@ -242,16 +267,21 @@ theorem fromUnit_ker [hn : Fact <| 0 < n] :
       subtype.mk_eq_mk.mpr
         ((QuotientGroup.eq_one_iff _).mpr ⟨_, by simp only [powMonoidHom_apply, map_pow]⟩)
 #align is_dedekind_domain.selmer_group.from_unit_ker IsDedekindDomain.selmerGroup.fromUnit_ker
+-/
 
+#print IsDedekindDomain.selmerGroup.fromUnitLift /-
 /-- The injection induced by the natural homomorphism from `Rˣ` to `K⟮∅, n⟯`. -/
 def fromUnitLift [Fact <| 0 < n] : (R/n) →* K⟮(∅ : Set <| HeightOneSpectrum R),n⟯ :=
   (QuotientGroup.kerLift _).comp (QuotientGroup.quotientMulEquivOfEq fromUnit_ker).symm.toMonoidHom
 #align is_dedekind_domain.selmer_group.from_unit_lift IsDedekindDomain.selmerGroup.fromUnitLift
+-/
 
+#print IsDedekindDomain.selmerGroup.fromUnitLift_injective /-
 theorem fromUnitLift_injective [Fact <| 0 < n] :
     Function.Injective <| @fromUnitLift R _ _ _ K _ _ _ n _ :=
   Function.Injective.comp (QuotientGroup.kerLift_injective _) (MulEquiv.injective _)
 #align is_dedekind_domain.selmer_group.from_unit_lift_injective IsDedekindDomain.selmerGroup.fromUnitLift_injective
+-/
 
 end SelmerGroup

2032a878

bump to nightly-2023-06-13-21

mathlib commit https://github.com/leanprover-community/mathlib/commit/9fb8964792b4237dac6200193a0d533f1b3f7423

829520ac

Diff

@@ -67,7 +67,6 @@ class group, selmer group, unit group
 -/
 
 
--- mathport name: quot
 local notation K "/" n => Kˣ ⧸ (powMonoidHom n : Kˣ →* Kˣ).range
 
 namespace IsDedekindDomain
@@ -176,7 +175,6 @@ def selmerGroup : Subgroup <| K/n
   inv_mem' _ hx v hv := by rw [map_inv, hx v hv, inv_one]
 #align is_dedekind_domain.selmer_group IsDedekindDomain.selmerGroup
 
--- mathport name: «expr ⟮ , ⟯»
 scoped[SelmerGroup] notation K "⟮" S "," n "⟯" => @selmerGroup _ _ _ _ K _ _ _ S n
 
 namespace SelmerGroup

2032a878

bump to nightly-2023-06-08-23

mathlib commit https://github.com/leanprover-community/mathlib/commit/31c24aa72e7b3e5ed97a8412470e904f82b81004

d3cfe2e3

Diff

@@ -166,7 +166,7 @@ end HeightOneSpectrum
 
 variable {S S' : Set <| HeightOneSpectrum R} {n : ℕ}
 
-/- ./././Mathport/Syntax/Translate/Basic.lean:635:2: warning: expanding binder collection (v «expr ∉ » S) -/
+/- ./././Mathport/Syntax/Translate/Basic.lean:638:2: warning: expanding binder collection (v «expr ∉ » S) -/
 /-- The Selmer group `K⟮S, n⟯`. -/
 def selmerGroup : Subgroup <| K/n
     where

2032a878

bump to nightly-2023-06-04-18

mathlib commit https://github.com/leanprover-community/mathlib/commit/5f25c089cb34db4db112556f23c50d12da81b297

3fb4268b

Diff

@@ -132,7 +132,7 @@ theorem valuation_of_unit_eq (x : Rˣ) :
   · exact v.valuation_le_one x
   · cases' x with x _ hx _
     change ¬v.valuation (algebraMap R K x) < 1
-    apply_fun v.int_valuation  at hx 
+    apply_fun v.int_valuation at hx 
     rw [map_one, map_mul] at hx 
     rw [not_lt, ← hx, ← mul_one <| v.valuation _, valuation_of_algebra_map,
       mul_le_mul_left₀ <| left_ne_zero_of_mul_eq_one hx]
@@ -170,7 +170,7 @@ variable {S S' : Set <| HeightOneSpectrum R} {n : ℕ}
 /-- The Selmer group `K⟮S, n⟯`. -/
 def selmerGroup : Subgroup <| K/n
     where
-  carrier := { x : K/n | ∀ (v) (_ : v ∉ S), (v : HeightOneSpectrum R).valuationOfNeZeroMod n x = 1 }
+  carrier := {x : K/n | ∀ (v) (_ : v ∉ S), (v : HeightOneSpectrum R).valuationOfNeZeroMod n x = 1}
   one_mem' _ _ := by rw [map_one]
   mul_mem' _ _ hx hy v hv := by rw [map_mul, hx v hv, hy v hv, one_mul]
   inv_mem' _ hx v hv := by rw [map_inv, hx v hv, inv_one]

2032a878

bump to nightly-2023-06-01-16

mathlib commit https://github.com/leanprover-community/mathlib/commit/cca40788df1b8755d5baf17ab2f27dacc2e17acb

b9c87c70

Diff

@@ -132,8 +132,8 @@ theorem valuation_of_unit_eq (x : Rˣ) :
   · exact v.valuation_le_one x
   · cases' x with x _ hx _
     change ¬v.valuation (algebraMap R K x) < 1
-    apply_fun v.int_valuation  at hx
-    rw [map_one, map_mul] at hx
+    apply_fun v.int_valuation  at hx 
+    rw [map_one, map_mul] at hx 
     rw [not_lt, ← hx, ← mul_one <| v.valuation _, valuation_of_algebra_map,
       mul_le_mul_left₀ <| left_ne_zero_of_mul_eq_one hx]
     exact v.int_valuation_le_one _
@@ -149,7 +149,7 @@ def valuationOfNeZeroMod (n : ℕ) : (K/n) →* Multiplicative (ZMod n) :=
       (by
         rintro _ ⟨x, rfl⟩
         exact
-          ⟨v.valuation_of_ne_zero x, by simpa only [powMonoidHom_apply, map_pow, Int.toAdd_pow] ⟩)
+          ⟨v.valuation_of_ne_zero x, by simpa only [powMonoidHom_apply, map_pow, Int.toAdd_pow]⟩)
 #align is_dedekind_domain.height_one_spectrum.valuation_of_ne_zero_mod IsDedekindDomain.HeightOneSpectrum.valuationOfNeZeroMod
 
 @[simp]
@@ -223,17 +223,17 @@ theorem fromUnit_ker [hn : Fact <| 0 < n] :
     rcases(QuotientGroup.eq_one_iff _).mp (Subtype.mk.inj hx) with ⟨⟨v, i, vi, iv⟩, hx⟩
     have hv : ↑(_ ^ n : Kˣ) = algebraMap R K _ := congr_arg Units.val hx
     have hi : ↑(_ ^ n : Kˣ)⁻¹ = algebraMap R K _ := congr_arg Units.inv hx
-    rw [Units.val_pow_eq_pow_val] at hv
-    rw [← inv_pow, Units.inv_mk, Units.val_pow_eq_pow_val] at hi
+    rw [Units.val_pow_eq_pow_val] at hv 
+    rw [← inv_pow, Units.inv_mk, Units.val_pow_eq_pow_val] at hi 
     rcases@IsIntegrallyClosed.exists_algebraMap_eq_of_isIntegral_pow R _ _ _ _ _ _ _ v _ hn.out
         (hv.symm ▸ isIntegral_algebraMap) with
       ⟨v', rfl⟩
     rcases@IsIntegrallyClosed.exists_algebraMap_eq_of_isIntegral_pow R _ _ _ _ _ _ _ i _ hn.out
         (hi.symm ▸ isIntegral_algebraMap) with
       ⟨i', rfl⟩
-    rw [← map_mul, map_eq_one_iff _ <| NoZeroSMulDivisors.algebraMap_injective R K] at vi
-    rw [← map_mul, map_eq_one_iff _ <| NoZeroSMulDivisors.algebraMap_injective R K] at iv
-    rw [Units.val_mk, ← map_pow] at hv
+    rw [← map_mul, map_eq_one_iff _ <| NoZeroSMulDivisors.algebraMap_injective R K] at vi 
+    rw [← map_mul, map_eq_one_iff _ <| NoZeroSMulDivisors.algebraMap_injective R K] at iv 
+    rw [Units.val_mk, ← map_pow] at hv 
     exact
       ⟨⟨v', i', vi, iv⟩, by
         simpa only [Units.ext_iff, powMonoidHom_apply, Units.val_pow_eq_pow_val] using

2032a878

bump to nightly-2023-05-28-18

mathlib commit https://github.com/leanprover-community/mathlib/commit/917c3c072e487b3cccdbfeff17e75b40e45f66cb

8d353152

Diff

@@ -74,7 +74,7 @@ namespace IsDedekindDomain
 
 noncomputable section
 
-open Classical DiscreteValuation nonZeroDivisors
+open scoped Classical DiscreteValuation nonZeroDivisors
 
 universe u v

2032a878

bump to nightly-2023-05-28-04

mathlib commit https://github.com/leanprover-community/mathlib/commit/917c3c072e487b3cccdbfeff17e75b40e45f66cb

6797a637

Diff

@@ -112,13 +112,10 @@ theorem valuationOfNeZeroToFun_eq (x : Kˣ) :
 def valuationOfNeZero : Kˣ →* Multiplicative ℤ
     where
   toFun := v.valuationOfNeZeroToFun
-  map_one' := by
-    rw [← WithZero.coe_inj, valuation_of_ne_zero_to_fun_eq]
-    exact map_one _
+  map_one' := by rw [← WithZero.coe_inj, valuation_of_ne_zero_to_fun_eq]; exact map_one _
   map_mul' _ _ := by
     rw [← WithZero.coe_inj, WithZero.coe_mul]
-    simp only [valuation_of_ne_zero_to_fun_eq]
-    exact map_mul _ _ _
+    simp only [valuation_of_ne_zero_to_fun_eq]; exact map_mul _ _ _
 #align is_dedekind_domain.height_one_spectrum.valuation_of_ne_zero IsDedekindDomain.HeightOneSpectrum.valuationOfNeZero
 
 @[simp]

2032a878

bump to nightly-2023-05-25-16

mathlib commit https://github.com/leanprover-community/mathlib/commit/ef95945cd48c932c9e034872bd25c3c220d9c946

e9a29bbe

Diff

@@ -146,7 +146,7 @@ attribute [local semireducible] MulOpposite
 
 /-- The multiplicative `v`-adic valuation on `Kˣ` modulo `n`-th powers. -/
 def valuationOfNeZeroMod (n : ℕ) : (K/n) →* Multiplicative (ZMod n) :=
-  (Int.quotientZmultiplesNatEquivZmod n).toMultiplicative.toMonoidHom.comp <|
+  (Int.quotientZmultiplesNatEquivZMod n).toMultiplicative.toMonoidHom.comp <|
     QuotientGroup.map (powMonoidHom n : Kˣ →* Kˣ).range (AddSubgroup.zmultiples (n : ℤ)).toSubgroup
       v.valuationOfNeZero
       (by

2032a878

bump to nightly-2023-03-01-20

mathlib commit https://github.com/leanprover-community/mathlib/commit/4c586d291f189eecb9d00581aeb3dd998ac34442

20cadee0

Diff

@@ -169,7 +169,7 @@ end HeightOneSpectrum
 
 variable {S S' : Set <| HeightOneSpectrum R} {n : ℕ}
 
-/- ./././Mathport/Syntax/Translate/Basic.lean:628:2: warning: expanding binder collection (v «expr ∉ » S) -/
+/- ./././Mathport/Syntax/Translate/Basic.lean:635:2: warning: expanding binder collection (v «expr ∉ » S) -/
 /-- The Selmer group `K⟮S, n⟯`. -/
 def selmerGroup : Subgroup <| K/n
     where

2032a878

bump to nightly-2023-02-21-16

mathlib commit https://github.com/leanprover-community/mathlib/commit/bd9851ca476957ea4549eb19b40e7b5ade9428cc

1107b979

Changes in mathlib4

mathlib3

mathlib4

2032a878

chore: adapt to multiple goal linter 2 (#12361)

A PR analogous to #12338: reformatting proofs following the multiple goals linter of #12339.

fe96aa45

Diff

@@ -97,7 +97,7 @@ theorem valuationOfNeZeroToFun_eq (x : Kˣ) :
   change _ = ite _ _ _ * (ite _ _ _)⁻¹
   rw [IsLocalization.toLocalizationMap_sec]
   rw [if_neg <| IsLocalization.sec_fst_ne_zero le_rfl x.ne_zero, if_neg ?_]
-  rfl
+  · rfl
   exact nonZeroDivisors.coe_ne_zero _
 #align is_dedekind_domain.height_one_spectrum.valuation_of_ne_zero_to_fun_eq IsDedekindDomain.HeightOneSpectrum.valuationOfNeZeroToFun_eq

2032a878

feat(DedekindDomain.Ideal): remove Domain assumption from DedekindDomain (#11527)

Probably because in mathlib4 the definition IsDedekindDomain extends Domain, and this was not the case in mathlib3, there are unused hypothesis of the form

variable [IsDomain R] [IsDedekindDomain R]

and this PR removes the first one, that can be inferred by the second, both in variable declarations and in theorem/definition assumptions. A regex search has been performed on the library to search for all occurrences and none is left.

85b063b5

Diff

@@ -73,7 +73,7 @@ open scoped Classical DiscreteValuation nonZeroDivisors
 
 universe u v
 
-variable {R : Type u} [CommRing R] [IsDomain R] [IsDedekindDomain R] {K : Type v} [Field K]
+variable {R : Type u} [CommRing R] [IsDedekindDomain R] {K : Type v} [Field K]
   [Algebra R K] [IsFractionRing R K] (v : HeightOneSpectrum R)
 
 /-! ### Valuations of non-zero elements -/
@@ -170,7 +170,7 @@ def selmerGroup : Subgroup <| K/n where
 #align is_dedekind_domain.selmer_group IsDedekindDomain.selmerGroup
 
 -- Porting note: was `scoped[SelmerGroup]` but that does not work even using `open SelmerGroup`
-local notation K "⟮" S "," n "⟯" => @selmerGroup _ _ _ _ K _ _ _ S n
+local notation K "⟮" S "," n "⟯" => @selmerGroup _ _ _ K _ _ _ S n
 
 namespace selmerGroup
 
@@ -206,7 +206,7 @@ def fromUnit {n : ℕ} : Rˣ →* K⟮(∅ : Set <| HeightOneSpectrum R),n⟯ wh
 #align is_dedekind_domain.selmer_group.from_unit IsDedekindDomain.selmerGroup.fromUnit
 
 theorem fromUnit_ker [hn : Fact <| 0 < n] :
-    (@fromUnit R _ _ _ K _ _ _ n).ker = (powMonoidHom n : Rˣ →* Rˣ).range := by
+    (@fromUnit R _ _ K _ _ _ n).ker = (powMonoidHom n : Rˣ →* Rˣ).range := by
   ext ⟨_, _, _, _⟩
   constructor
   · intro hx
@@ -240,7 +240,7 @@ def fromUnitLift [Fact <| 0 < n] : (R/n) →* K⟮(∅ : Set <| HeightOneSpectru
 #align is_dedekind_domain.selmer_group.from_unit_lift IsDedekindDomain.selmerGroup.fromUnitLift
 
 theorem fromUnitLift_injective [Fact <| 0 < n] :
-    Function.Injective <| @fromUnitLift R _ _ _ K _ _ _ n _ := by
+    Function.Injective <| @fromUnitLift R _ _ K _ _ _ n _ := by
   dsimp only [fromUnitLift, MonoidHom.coe_comp, MulEquiv.coe_toMonoidHom]
   exact Function.Injective.comp (QuotientGroup.kerLift_injective _) (MulEquiv.injective _)
 #align is_dedekind_domain.selmer_group.from_unit_lift_injective IsDedekindDomain.selmerGroup.fromUnitLift_injective

2032a878

feat: ℕ, ℤ and ℚ≥0 are star-ordered rings (#10633)

Also golf the existing instance for ℚ and rename Rat.num_nonneg_iff_zero_le to Rat.num_nonneg, Rat.num_pos_iff_pos to Rat.num_pos.

From LeanAPAP

449a4a9b

Diff

@@ -200,7 +200,7 @@ def fromUnit {n : ℕ} : Rˣ →* K⟮(∅ : Set <| HeightOneSpectrum R),n⟯ wh
   toFun x :=
     ⟨QuotientGroup.mk <| Units.map (algebraMap R K).toMonoidHom x, fun v _ =>
       v.valuation_of_unit_mod_eq n x⟩
-  map_one' := by simp only [map_one, QuotientGroup.mk_one, Subgroup.mk_eq_one_iff]
+  map_one' := by simp only [map_one, QuotientGroup.mk_one, Subgroup.mk_eq_one]
   map_mul' _ _ := by simp only [RingHom.toMonoidHom_eq_coe, map_mul, MonoidHom.mem_range,
     powMonoidHom_apply, QuotientGroup.mk_mul, Submonoid.mk_mul_mk]
 #align is_dedekind_domain.selmer_group.from_unit IsDedekindDomain.selmerGroup.fromUnit

2032a878

chore: reduce imports (#9830)

This uses the improved shake script from #9772 to reduce imports across mathlib. The corresponding noshake.json file has been added to #9772.

Co-authored-by: Mario Carneiro <di.gama@gmail.com>

f4c4ca61

Diff

@@ -6,7 +6,6 @@ Authors: David Kurniadi Angdinata
 import Mathlib.Algebra.Group.Equiv.TypeTags
 import Mathlib.Data.ZMod.Quotient
 import Mathlib.RingTheory.DedekindDomain.AdicValuation
-import Mathlib.RingTheory.Norm
 
 #align_import ring_theory.dedekind_domain.selmer_group from "leanprover-community/mathlib"@"2032a878972d5672e7c27c957e7a6e297b044973"

2032a878

chore: Nsmul -> NSMul, Zpow -> ZPow, etc (#9067)

Normalising to naming convention rule number 6.

9b2f0dca

Diff

@@ -136,7 +136,7 @@ theorem valuation_of_unit_eq (x : Rˣ) :
 
 /-- The multiplicative `v`-adic valuation on `Kˣ` modulo `n`-th powers. -/
 def valuationOfNeZeroMod (n : ℕ) : (K/n) →* Multiplicative (ZMod n) :=
-  (Int.quotientZmultiplesNatEquivZMod n).toMultiplicative.toMonoidHom.comp <|
+  (Int.quotientZMultiplesNatEquivZMod n).toMultiplicative.toMonoidHom.comp <|
     QuotientGroup.map (powMonoidHom n : Kˣ →* Kˣ).range
       (AddSubgroup.toSubgroup (AddSubgroup.zmultiples (n : ℤ)))
       v.valuationOfNeZero

2032a878

refactor(Algebra/Hom): transpose Hom and file name (#8095)

I believe the file defining a type of morphisms belongs alongside the file defining the structure this morphism works on. So I would like to reorganize the files in the Mathlib.Algebra.Hom folder so that e.g. Mathlib.Algebra.Hom.Ring becomes Mathlib.Algebra.Ring.Hom and Mathlib.Algebra.Hom.NonUnitalAlg becomes Mathlib.Algebra.Algebra.NonUnitalHom.

While fixing the imports I went ahead and sorted them for good luck.

The full list of changes is: renamed: Mathlib/Algebra/Hom/NonUnitalAlg.lean -> Mathlib/Algebra/Algebra/NonUnitalHom.lean renamed: Mathlib/Algebra/Hom/Aut.lean -> Mathlib/Algebra/Group/Aut.lean renamed: Mathlib/Algebra/Hom/Commute.lean -> Mathlib/Algebra/Group/Commute/Hom.lean renamed: Mathlib/Algebra/Hom/Embedding.lean -> Mathlib/Algebra/Group/Embedding.lean renamed: Mathlib/Algebra/Hom/Equiv/Basic.lean -> Mathlib/Algebra/Group/Equiv/Basic.lean renamed: Mathlib/Algebra/Hom/Equiv/TypeTags.lean -> Mathlib/Algebra/Group/Equiv/TypeTags.lean renamed: Mathlib/Algebra/Hom/Equiv/Units/Basic.lean -> Mathlib/Algebra/Group/Units/Equiv.lean renamed: Mathlib/Algebra/Hom/Equiv/Units/GroupWithZero.lean -> Mathlib/Algebra/GroupWithZero/Units/Equiv.lean renamed: Mathlib/Algebra/Hom/Freiman.lean -> Mathlib/Algebra/Group/Freiman.lean renamed: Mathlib/Algebra/Hom/Group/Basic.lean -> Mathlib/Algebra/Group/Hom/Basic.lean renamed: Mathlib/Algebra/Hom/Group/Defs.lean -> Mathlib/Algebra/Group/Hom/Defs.lean renamed: Mathlib/Algebra/Hom/GroupAction.lean -> Mathlib/GroupTheory/GroupAction/Hom.lean renamed: Mathlib/Algebra/Hom/GroupInstances.lean -> Mathlib/Algebra/Group/Hom/Instances.lean renamed: Mathlib/Algebra/Hom/Iterate.lean -> Mathlib/Algebra/GroupPower/IterateHom.lean renamed: Mathlib/Algebra/Hom/Centroid.lean -> Mathlib/Algebra/Ring/CentroidHom.lean renamed: Mathlib/Algebra/Hom/Ring/Basic.lean -> Mathlib/Algebra/Ring/Hom/Basic.lean renamed: Mathlib/Algebra/Hom/Ring/Defs.lean -> Mathlib/Algebra/Ring/Hom/Defs.lean renamed: Mathlib/Algebra/Hom/Units.lean -> Mathlib/Algebra/Group/Units/Hom.lean

Zulip thread: https://leanprover.zulipchat.com/#narrow/stream/287929-mathlib4/topic/Reorganizing.20.60Mathlib.2EAlgebra.2EHom.60

92fe122e

Diff

@@ -3,7 +3,7 @@ Copyright (c) 2022 David Kurniadi Angdinata. All rights reserved.
 Released under Apache 2.0 license as described in the file LICENSE.
 Authors: David Kurniadi Angdinata
 -/
-import Mathlib.Algebra.Hom.Equiv.TypeTags
+import Mathlib.Algebra.Group.Equiv.TypeTags
 import Mathlib.Data.ZMod.Quotient
 import Mathlib.RingTheory.DedekindDomain.AdicValuation
 import Mathlib.RingTheory.Norm

2032a878

chore: missing spaces after rcases, convert and congrm (#7725)

Replace rcases( with rcases (. Same thing for convert( and congrm(. No other change.

c5594244

Diff

@@ -211,7 +211,7 @@ theorem fromUnit_ker [hn : Fact <| 0 < n] :
   ext ⟨_, _, _, _⟩
   constructor
   · intro hx
-    rcases(QuotientGroup.eq_one_iff _).mp (Subtype.mk.inj hx) with ⟨⟨v, i, vi, iv⟩, hx⟩
+    rcases (QuotientGroup.eq_one_iff _).mp (Subtype.mk.inj hx) with ⟨⟨v, i, vi, iv⟩, hx⟩
     have hv : ↑(_ ^ n : Kˣ) = algebraMap R K _ := by exact congr_arg Units.val hx
     have hi : ↑(_ ^ n : Kˣ)⁻¹ = algebraMap R K _ := by exact congr_arg Units.inv hx
     rw [Units.val_pow_eq_pow_val] at hv

2032a878

Revert "chore: revert #7703 (#7710)"

This reverts commit f3695eb2.

ab56fa28

Diff

@@ -149,7 +149,8 @@ def valuationOfNeZeroMod (n : ℕ) : (K/n) →* Multiplicative (ZMod n) :=
 @[simp]
 theorem valuation_of_unit_mod_eq (n : ℕ) (x : Rˣ) :
     v.valuationOfNeZeroMod n (Units.map (algebraMap R K : R →* K) x : K/n) = 1 := by
-  rw [valuationOfNeZeroMod, MonoidHom.comp_apply, ← QuotientGroup.coe_mk',
+  -- This used to be `rw`, but we need `erw` after leanprover/lean4#2644
+  erw [valuationOfNeZeroMod, MonoidHom.comp_apply, ← QuotientGroup.coe_mk',
     QuotientGroup.map_mk' (G := Kˣ) (N := MonoidHom.range (powMonoidHom n)),
     valuation_of_unit_eq, QuotientGroup.mk_one, map_one]
 #align is_dedekind_domain.height_one_spectrum.valuation_of_unit_mod_eq IsDedekindDomain.HeightOneSpectrum.valuation_of_unit_mod_eq

2032a878

chore: revert #7703 (#7710)

This reverts commit 26eb2b0a.

f3695eb2

Diff

@@ -149,8 +149,7 @@ def valuationOfNeZeroMod (n : ℕ) : (K/n) →* Multiplicative (ZMod n) :=
 @[simp]
 theorem valuation_of_unit_mod_eq (n : ℕ) (x : Rˣ) :
     v.valuationOfNeZeroMod n (Units.map (algebraMap R K : R →* K) x : K/n) = 1 := by
-  -- This used to be `rw`, but we need `erw` after leanprover/lean4#2644
-  erw [valuationOfNeZeroMod, MonoidHom.comp_apply, ← QuotientGroup.coe_mk',
+  rw [valuationOfNeZeroMod, MonoidHom.comp_apply, ← QuotientGroup.coe_mk',
     QuotientGroup.map_mk' (G := Kˣ) (N := MonoidHom.range (powMonoidHom n)),
     valuation_of_unit_eq, QuotientGroup.mk_one, map_one]
 #align is_dedekind_domain.height_one_spectrum.valuation_of_unit_mod_eq IsDedekindDomain.HeightOneSpectrum.valuation_of_unit_mod_eq

2032a878

chore: bump toolchain to v4.2.0-rc2 (#7703)

This includes all the changes from #7606.

Co-authored-by: Scott Morrison <scott.morrison@gmail.com>

26eb2b0a

Diff

@@ -149,7 +149,8 @@ def valuationOfNeZeroMod (n : ℕ) : (K/n) →* Multiplicative (ZMod n) :=
 @[simp]
 theorem valuation_of_unit_mod_eq (n : ℕ) (x : Rˣ) :
     v.valuationOfNeZeroMod n (Units.map (algebraMap R K : R →* K) x : K/n) = 1 := by
-  rw [valuationOfNeZeroMod, MonoidHom.comp_apply, ← QuotientGroup.coe_mk',
+  -- This used to be `rw`, but we need `erw` after leanprover/lean4#2644
+  erw [valuationOfNeZeroMod, MonoidHom.comp_apply, ← QuotientGroup.coe_mk',
     QuotientGroup.map_mk' (G := Kˣ) (N := MonoidHom.range (powMonoidHom n)),
     valuation_of_unit_eq, QuotientGroup.mk_one, map_one]
 #align is_dedekind_domain.height_one_spectrum.valuation_of_unit_mod_eq IsDedekindDomain.HeightOneSpectrum.valuation_of_unit_mod_eq

2032a878

refactor: make IsDedekindDomain extend the other classes (#5834)

This redefines the IsDedekindDomain class to be the conjunction through extends of the classes IsDomain, IsNoetherianRing, DimensionLEOne and IsIntegrallyClosed.

Zulip thread: https://leanprover.zulipchat.com/#narrow/stream/113488-general/topic/Should.20.60IsDedekindDomain.60.20extend.20.60IsDomain.60.3F

80b3e90f

Diff

@@ -215,10 +215,10 @@ theorem fromUnit_ker [hn : Fact <| 0 < n] :
     have hi : ↑(_ ^ n : Kˣ)⁻¹ = algebraMap R K _ := by exact congr_arg Units.inv hx
     rw [Units.val_pow_eq_pow_val] at hv
     rw [← inv_pow, Units.inv_mk, Units.val_pow_eq_pow_val] at hi
-    rcases@IsIntegrallyClosed.exists_algebraMap_eq_of_isIntegral_pow R _ _ _ _ _ _ _ v _ hn.out
+    rcases IsIntegrallyClosed.exists_algebraMap_eq_of_isIntegral_pow (R := R) (x := v) hn.out
         (hv.symm ▸ isIntegral_algebraMap) with
       ⟨v', rfl⟩
-    rcases@IsIntegrallyClosed.exists_algebraMap_eq_of_isIntegral_pow R _ _ _ _ _ _ _ i _ hn.out
+    rcases IsIntegrallyClosed.exists_algebraMap_eq_of_isIntegral_pow (R := R) (x := i) hn.out
         (hi.symm ▸ isIntegral_algebraMap) with
       ⟨i', rfl⟩
     rw [← map_mul, map_eq_one_iff _ <| NoZeroSMulDivisors.algebraMap_injective R K] at vi

2032a878

chore: script to replace headers with #align_import statements (#5979)

depends on: #5966

Co-authored-by: Eric Wieser <wieser.eric@gmail.com> Co-authored-by: Scott Morrison <scott.morrison@gmail.com>

89aa3a3b

Diff

@@ -2,17 +2,14 @@
 Copyright (c) 2022 David Kurniadi Angdinata. All rights reserved.
 Released under Apache 2.0 license as described in the file LICENSE.
 Authors: David Kurniadi Angdinata
-
-! This file was ported from Lean 3 source module ring_theory.dedekind_domain.selmer_group
-! leanprover-community/mathlib commit 2032a878972d5672e7c27c957e7a6e297b044973
-! Please do not edit these lines, except to modify the commit id
-! if you have ported upstream changes.
 -/
 import Mathlib.Algebra.Hom.Equiv.TypeTags
 import Mathlib.Data.ZMod.Quotient
 import Mathlib.RingTheory.DedekindDomain.AdicValuation
 import Mathlib.RingTheory.Norm
 
+#align_import ring_theory.dedekind_domain.selmer_group from "leanprover-community/mathlib"@"2032a878972d5672e7c27c957e7a6e297b044973"
+
 /-!
 # Selmer groups of fraction fields of Dedekind domains

2032a878

feat: port RingTheory.DedekindDomain.SelmerGroup (#5478)

186ec0c6

`ring_theory.dedekind_domain.selmer_group` ⟷ `Mathlib.RingTheory.DedekindDomain.SelmerGroup`

Changes since the initial port

Changes in mathlib3

Changes in mathlib3port

Changes in mathlib4

Dependencies 11 + 835

ring_theory.dedekind_domain.selmer_group ⟷ Mathlib.RingTheory.DedekindDomain.SelmerGroup

Changes since the initial port

Changes in mathlib3

Changes in mathlib3port

Changes in mathlib4

Dependencies 11 + 835

`ring_theory.dedekind_domain.selmer_group` ⟷ `Mathlib.RingTheory.DedekindDomain.SelmerGroup`