algebra.lie.semisimple | Mathlib porting status

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

356447fe

(last sync)

Changes in mathlib3port

mathlib3

mathlib3port

36938f77

bump to nightly-2024-03-17-08

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

22f01ce4

Diff

@@ -92,7 +92,7 @@ theorem isSemisimple_iff_no_abelian_ideals :
 #print LieAlgebra.center_eq_bot_of_semisimple /-
 @[simp]
 theorem center_eq_bot_of_semisimple [h : IsSemisimple R L] : center R L = ⊥ := by
-  rw [is_semisimple_iff_no_abelian_ideals] at h ; apply h; infer_instance
+  rw [is_semisimple_iff_no_abelian_ideals] at h; apply h; infer_instance
 #align lie_algebra.center_eq_bot_of_semisimple LieAlgebra.center_eq_bot_of_semisimple
 -/
 
@@ -104,7 +104,7 @@ instance (priority := 100) isSemisimpleOfIsSimple [h : IsSimple R L] : IsSemisim
   intro I hI
   obtain @⟨⟨h₁⟩, h₂⟩ := id h
   by_contra contra
-  rw [h₁ I contra, lie_abelian_iff_equiv_lie_abelian LieIdeal.topEquiv] at hI 
+  rw [h₁ I contra, lie_abelian_iff_equiv_lie_abelian LieIdeal.topEquiv] at hI
   exact h₂ hI
 #align lie_algebra.is_semisimple_of_is_simple LieAlgebra.isSemisimpleOfIsSimple
 -/
@@ -114,7 +114,7 @@ instance (priority := 100) isSemisimpleOfIsSimple [h : IsSimple R L] : IsSemisim
 theorem subsingleton_of_semisimple_lie_abelian [IsSemisimple R L] [h : IsLieAbelian L] :
     Subsingleton L :=
   by
-  rw [is_lie_abelian_iff_center_eq_top R L, center_eq_bot_of_semisimple] at h 
+  rw [is_lie_abelian_iff_center_eq_top R L, center_eq_bot_of_semisimple] at h
   exact (LieSubmodule.subsingleton_iff R L L).mp (subsingleton_of_bot_eq_top h)
 #align lie_algebra.subsingleton_of_semisimple_lie_abelian LieAlgebra.subsingleton_of_semisimple_lie_abelian
 -/
@@ -136,7 +136,7 @@ theorem abelian_radical_iff_solvable_is_abelian [IsNoetherian R L] :
   by
   constructor
   · rintro h₁ I h₂
-    rw [lie_ideal.solvable_iff_le_radical] at h₂ 
+    rw [lie_ideal.solvable_iff_le_radical] at h₂
     exact (LieIdeal.inclusion_injective h₂).IsLieAbelian h₁
   · intro h; apply h; infer_instance
 #align lie_algebra.abelian_radical_iff_solvable_is_abelian LieAlgebra.abelian_radical_iff_solvable_is_abelian

36938f77

bump to nightly-2023-11-29-11

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

049e2cad

Diff

@@ -137,7 +137,7 @@ theorem abelian_radical_iff_solvable_is_abelian [IsNoetherian R L] :
   constructor
   · rintro h₁ I h₂
     rw [lie_ideal.solvable_iff_le_radical] at h₂ 
-    exact (LieIdeal.homOfLe_injective h₂).IsLieAbelian h₁
+    exact (LieIdeal.inclusion_injective h₂).IsLieAbelian h₁
   · intro h; apply h; infer_instance
 #align lie_algebra.abelian_radical_iff_solvable_is_abelian LieAlgebra.abelian_radical_iff_solvable_is_abelian
 -/

36938f77

bump to nightly-2023-09-24-06

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

5655435f

Diff

@@ -3,7 +3,7 @@ Copyright (c) 2021 Oliver Nash. All rights reserved.
 Released under Apache 2.0 license as described in the file LICENSE.
 Authors: Oliver Nash
 -/
-import Mathbin.Algebra.Lie.Solvable
+import Algebra.Lie.Solvable
 
 #align_import algebra.lie.semisimple from "leanprover-community/mathlib"@"36938f775671ff28bea1c0310f1608e4afbb22e0"

36938f77

bump to nightly-2023-07-20-09

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

9c56d0dd

Diff

@@ -2,14 +2,11 @@
 Copyright (c) 2021 Oliver Nash. All rights reserved.
 Released under Apache 2.0 license as described in the file LICENSE.
 Authors: Oliver Nash
-
-! This file was ported from Lean 3 source module algebra.lie.semisimple
-! leanprover-community/mathlib commit 36938f775671ff28bea1c0310f1608e4afbb22e0
-! Please do not edit these lines, except to modify the commit id
-! if you have ported upstream changes.
 -/
 import Mathbin.Algebra.Lie.Solvable
 
+#align_import algebra.lie.semisimple from "leanprover-community/mathlib"@"36938f775671ff28bea1c0310f1608e4afbb22e0"
+
 /-!
 # Semisimple Lie algebras

36938f77

bump to nightly-2023-06-13-21

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

829520ac

Diff

@@ -112,6 +112,7 @@ instance (priority := 100) isSemisimpleOfIsSimple [h : IsSimple R L] : IsSemisim
 #align lie_algebra.is_semisimple_of_is_simple LieAlgebra.isSemisimpleOfIsSimple
 -/
 
+#print LieAlgebra.subsingleton_of_semisimple_lie_abelian /-
 /-- A semisimple Abelian Lie algebra is trivial. -/
 theorem subsingleton_of_semisimple_lie_abelian [IsSemisimple R L] [h : IsLieAbelian L] :
     Subsingleton L :=
@@ -119,6 +120,7 @@ theorem subsingleton_of_semisimple_lie_abelian [IsSemisimple R L] [h : IsLieAbel
   rw [is_lie_abelian_iff_center_eq_top R L, center_eq_bot_of_semisimple] at h 
   exact (LieSubmodule.subsingleton_iff R L L).mp (subsingleton_of_bot_eq_top h)
 #align lie_algebra.subsingleton_of_semisimple_lie_abelian LieAlgebra.subsingleton_of_semisimple_lie_abelian
+-/
 
 #print LieAlgebra.abelian_radical_of_semisimple /-
 theorem abelian_radical_of_semisimple [IsSemisimple R L] : IsLieAbelian (radical R L) := by

36938f77

bump to nightly-2023-06-07-03

mathlib commit https://github.com/leanprover-community/mathlib/commit/58a272265b5e05f258161260dd2c5d247213cbd3

831e78ce

Diff

@@ -4,7 +4,7 @@ Released under Apache 2.0 license as described in the file LICENSE.
 Authors: Oliver Nash
 
 ! This file was ported from Lean 3 source module algebra.lie.semisimple
-! leanprover-community/mathlib commit 356447fe00e75e54777321045cdff7c9ea212e60
+! leanprover-community/mathlib commit 36938f775671ff28bea1c0310f1608e4afbb22e0
 ! Please do not edit these lines, except to modify the commit id
 ! if you have ported upstream changes.
 -/
@@ -13,6 +13,9 @@ import Mathbin.Algebra.Lie.Solvable
 /-!
 # Semisimple Lie algebras
 
+> THIS FILE IS SYNCHRONIZED WITH MATHLIB4.
+> Any changes to this file require a corresponding PR to mathlib4.
+
 The famous Cartan-Dynkin-Killing classification of semisimple Lie algebras renders them one of the
 most important classes of Lie algebras. In this file we define simple and semisimple Lie algebras
 and prove some basic related results.

356447fe

bump to nightly-2023-06-05-12

mathlib commit https://github.com/leanprover-community/mathlib/commit/13361559d66b84f80b6d5a1c4a26aa5054766725

d07076be

Diff

@@ -34,12 +34,14 @@ lie algebra, radical, simple, semisimple
 
 universe u v w w₁ w₂
 
+#print LieModule.IsIrreducible /-
 /-- A Lie module is irreducible if it is zero or its only non-trivial Lie submodule is itself. -/
 class LieModule.IsIrreducible (R : Type u) (L : Type v) (M : Type w) [CommRing R] [LieRing L]
     [LieAlgebra R L] [AddCommGroup M] [Module R M] [LieRingModule L M] [LieModule R L M] :
     Prop where
   Irreducible : ∀ N : LieSubmodule R L M, N ≠ ⊥ → N = ⊤
 #align lie_module.is_irreducible LieModule.IsIrreducible
+-/
 
 namespace LieAlgebra
 
@@ -47,12 +49,15 @@ variable (R : Type u) (L : Type v)
 
 variable [CommRing R] [LieRing L] [LieAlgebra R L]
 
+#print LieAlgebra.IsSimple /-
 /-- A Lie algebra is simple if it is irreducible as a Lie module over itself via the adjoint
 action, and it is non-Abelian. -/
 class IsSimple extends LieModule.IsIrreducible R L L : Prop where
   non_abelian : ¬IsLieAbelian L
 #align lie_algebra.is_simple LieAlgebra.IsSimple
+-/
 
+#print LieAlgebra.IsSemisimple /-
 /-- A semisimple Lie algebra is one with trivial radical.
 
 Note that the label 'semisimple' is apparently not universally agreed
@@ -63,12 +68,16 @@ zero. -/
 class IsSemisimple : Prop where
   semisimple : radical R L = ⊥
 #align lie_algebra.is_semisimple LieAlgebra.IsSemisimple
+-/
 
+#print LieAlgebra.isSemisimple_iff_no_solvable_ideals /-
 theorem isSemisimple_iff_no_solvable_ideals :
     IsSemisimple R L ↔ ∀ I : LieIdeal R L, IsSolvable R I → I = ⊥ :=
   ⟨fun h => sSup_eq_bot.mp h.semisimple, fun h => ⟨sSup_eq_bot.mpr h⟩⟩
 #align lie_algebra.is_semisimple_iff_no_solvable_ideals LieAlgebra.isSemisimple_iff_no_solvable_ideals
+-/
 
+#print LieAlgebra.isSemisimple_iff_no_abelian_ideals /-
 theorem isSemisimple_iff_no_abelian_ideals :
     IsSemisimple R L ↔ ∀ I : LieIdeal R L, IsLieAbelian I → I = ⊥ :=
   by
@@ -78,12 +87,16 @@ theorem isSemisimple_iff_no_abelian_ideals :
   · haveI : IsSolvable R I := h₂; rw [← abelian_of_solvable_ideal_eq_bot_iff]; apply h₁
     exact abelian_derived_abelian_of_ideal I
 #align lie_algebra.is_semisimple_iff_no_abelian_ideals LieAlgebra.isSemisimple_iff_no_abelian_ideals
+-/
 
+#print LieAlgebra.center_eq_bot_of_semisimple /-
 @[simp]
 theorem center_eq_bot_of_semisimple [h : IsSemisimple R L] : center R L = ⊥ := by
   rw [is_semisimple_iff_no_abelian_ideals] at h ; apply h; infer_instance
 #align lie_algebra.center_eq_bot_of_semisimple LieAlgebra.center_eq_bot_of_semisimple
+-/
 
+#print LieAlgebra.isSemisimpleOfIsSimple /-
 /-- A simple Lie algebra is semisimple. -/
 instance (priority := 100) isSemisimpleOfIsSimple [h : IsSimple R L] : IsSemisimple R L :=
   by
@@ -94,6 +107,7 @@ instance (priority := 100) isSemisimpleOfIsSimple [h : IsSimple R L] : IsSemisim
   rw [h₁ I contra, lie_abelian_iff_equiv_lie_abelian LieIdeal.topEquiv] at hI 
   exact h₂ hI
 #align lie_algebra.is_semisimple_of_is_simple LieAlgebra.isSemisimpleOfIsSimple
+-/
 
 /-- A semisimple Abelian Lie algebra is trivial. -/
 theorem subsingleton_of_semisimple_lie_abelian [IsSemisimple R L] [h : IsLieAbelian L] :
@@ -103,10 +117,13 @@ theorem subsingleton_of_semisimple_lie_abelian [IsSemisimple R L] [h : IsLieAbel
   exact (LieSubmodule.subsingleton_iff R L L).mp (subsingleton_of_bot_eq_top h)
 #align lie_algebra.subsingleton_of_semisimple_lie_abelian LieAlgebra.subsingleton_of_semisimple_lie_abelian
 
+#print LieAlgebra.abelian_radical_of_semisimple /-
 theorem abelian_radical_of_semisimple [IsSemisimple R L] : IsLieAbelian (radical R L) := by
   rw [is_semisimple.semisimple]; exact is_lie_abelian_bot R L
 #align lie_algebra.abelian_radical_of_semisimple LieAlgebra.abelian_radical_of_semisimple
+-/
 
+#print LieAlgebra.abelian_radical_iff_solvable_is_abelian /-
 /-- The two properties shown to be equivalent here are possible definitions for a Lie algebra
 to be reductive.
 
@@ -121,9 +138,12 @@ theorem abelian_radical_iff_solvable_is_abelian [IsNoetherian R L] :
     exact (LieIdeal.homOfLe_injective h₂).IsLieAbelian h₁
   · intro h; apply h; infer_instance
 #align lie_algebra.abelian_radical_iff_solvable_is_abelian LieAlgebra.abelian_radical_iff_solvable_is_abelian
+-/
 
+#print LieAlgebra.ad_ker_eq_bot_of_semisimple /-
 theorem ad_ker_eq_bot_of_semisimple [IsSemisimple R L] : (ad R L).ker = ⊥ := by simp
 #align lie_algebra.ad_ker_eq_bot_of_semisimple LieAlgebra.ad_ker_eq_bot_of_semisimple
+-/
 
 end LieAlgebra

356447fe

bump to nightly-2023-06-01-16

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

b9c87c70

Diff

@@ -36,7 +36,8 @@ universe u v w w₁ w₂
 
 /-- A Lie module is irreducible if it is zero or its only non-trivial Lie submodule is itself. -/
 class LieModule.IsIrreducible (R : Type u) (L : Type v) (M : Type w) [CommRing R] [LieRing L]
-  [LieAlgebra R L] [AddCommGroup M] [Module R M] [LieRingModule L M] [LieModule R L M] : Prop where
+    [LieAlgebra R L] [AddCommGroup M] [Module R M] [LieRingModule L M] [LieModule R L M] :
+    Prop where
   Irreducible : ∀ N : LieSubmodule R L M, N ≠ ⊥ → N = ⊤
 #align lie_module.is_irreducible LieModule.IsIrreducible
 
@@ -80,7 +81,7 @@ theorem isSemisimple_iff_no_abelian_ideals :
 
 @[simp]
 theorem center_eq_bot_of_semisimple [h : IsSemisimple R L] : center R L = ⊥ := by
-  rw [is_semisimple_iff_no_abelian_ideals] at h; apply h; infer_instance
+  rw [is_semisimple_iff_no_abelian_ideals] at h ; apply h; infer_instance
 #align lie_algebra.center_eq_bot_of_semisimple LieAlgebra.center_eq_bot_of_semisimple
 
 /-- A simple Lie algebra is semisimple. -/
@@ -90,7 +91,7 @@ instance (priority := 100) isSemisimpleOfIsSimple [h : IsSimple R L] : IsSemisim
   intro I hI
   obtain @⟨⟨h₁⟩, h₂⟩ := id h
   by_contra contra
-  rw [h₁ I contra, lie_abelian_iff_equiv_lie_abelian LieIdeal.topEquiv] at hI
+  rw [h₁ I contra, lie_abelian_iff_equiv_lie_abelian LieIdeal.topEquiv] at hI 
   exact h₂ hI
 #align lie_algebra.is_semisimple_of_is_simple LieAlgebra.isSemisimpleOfIsSimple
 
@@ -98,7 +99,7 @@ instance (priority := 100) isSemisimpleOfIsSimple [h : IsSimple R L] : IsSemisim
 theorem subsingleton_of_semisimple_lie_abelian [IsSemisimple R L] [h : IsLieAbelian L] :
     Subsingleton L :=
   by
-  rw [is_lie_abelian_iff_center_eq_top R L, center_eq_bot_of_semisimple] at h
+  rw [is_lie_abelian_iff_center_eq_top R L, center_eq_bot_of_semisimple] at h 
   exact (LieSubmodule.subsingleton_iff R L L).mp (subsingleton_of_bot_eq_top h)
 #align lie_algebra.subsingleton_of_semisimple_lie_abelian LieAlgebra.subsingleton_of_semisimple_lie_abelian
 
@@ -116,7 +117,7 @@ theorem abelian_radical_iff_solvable_is_abelian [IsNoetherian R L] :
   by
   constructor
   · rintro h₁ I h₂
-    rw [lie_ideal.solvable_iff_le_radical] at h₂
+    rw [lie_ideal.solvable_iff_le_radical] at h₂ 
     exact (LieIdeal.homOfLe_injective h₂).IsLieAbelian h₁
   · intro h; apply h; infer_instance
 #align lie_algebra.abelian_radical_iff_solvable_is_abelian LieAlgebra.abelian_radical_iff_solvable_is_abelian

356447fe

bump to nightly-2023-05-28-04

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

6797a637

Diff

@@ -73,21 +73,14 @@ theorem isSemisimple_iff_no_abelian_ideals :
   by
   rw [is_semisimple_iff_no_solvable_ideals]
   constructor <;> intro h₁ I h₂
-  · haveI : IsLieAbelian I := h₂
-    apply h₁
-    exact LieAlgebra.ofAbelianIsSolvable R I
-  · haveI : IsSolvable R I := h₂
-    rw [← abelian_of_solvable_ideal_eq_bot_iff]
-    apply h₁
+  · haveI : IsLieAbelian I := h₂; apply h₁; exact LieAlgebra.ofAbelianIsSolvable R I
+  · haveI : IsSolvable R I := h₂; rw [← abelian_of_solvable_ideal_eq_bot_iff]; apply h₁
     exact abelian_derived_abelian_of_ideal I
 #align lie_algebra.is_semisimple_iff_no_abelian_ideals LieAlgebra.isSemisimple_iff_no_abelian_ideals
 
 @[simp]
-theorem center_eq_bot_of_semisimple [h : IsSemisimple R L] : center R L = ⊥ :=
-  by
-  rw [is_semisimple_iff_no_abelian_ideals] at h
-  apply h
-  infer_instance
+theorem center_eq_bot_of_semisimple [h : IsSemisimple R L] : center R L = ⊥ := by
+  rw [is_semisimple_iff_no_abelian_ideals] at h; apply h; infer_instance
 #align lie_algebra.center_eq_bot_of_semisimple LieAlgebra.center_eq_bot_of_semisimple
 
 /-- A simple Lie algebra is semisimple. -/
@@ -109,10 +102,8 @@ theorem subsingleton_of_semisimple_lie_abelian [IsSemisimple R L] [h : IsLieAbel
   exact (LieSubmodule.subsingleton_iff R L L).mp (subsingleton_of_bot_eq_top h)
 #align lie_algebra.subsingleton_of_semisimple_lie_abelian LieAlgebra.subsingleton_of_semisimple_lie_abelian
 
-theorem abelian_radical_of_semisimple [IsSemisimple R L] : IsLieAbelian (radical R L) :=
-  by
-  rw [is_semisimple.semisimple]
-  exact is_lie_abelian_bot R L
+theorem abelian_radical_of_semisimple [IsSemisimple R L] : IsLieAbelian (radical R L) := by
+  rw [is_semisimple.semisimple]; exact is_lie_abelian_bot R L
 #align lie_algebra.abelian_radical_of_semisimple LieAlgebra.abelian_radical_of_semisimple
 
 /-- The two properties shown to be equivalent here are possible definitions for a Lie algebra
@@ -127,9 +118,7 @@ theorem abelian_radical_iff_solvable_is_abelian [IsNoetherian R L] :
   · rintro h₁ I h₂
     rw [lie_ideal.solvable_iff_le_radical] at h₂
     exact (LieIdeal.homOfLe_injective h₂).IsLieAbelian h₁
-  · intro h
-    apply h
-    infer_instance
+  · intro h; apply h; infer_instance
 #align lie_algebra.abelian_radical_iff_solvable_is_abelian LieAlgebra.abelian_radical_iff_solvable_is_abelian
 
 theorem ad_ker_eq_bot_of_semisimple [IsSemisimple R L] : (ad R L).ker = ⊥ := by simp

356447fe

bump to nightly-2023-05-14-08

mathlib commit https://github.com/leanprover-community/mathlib/commit/e3fb84046afd187b710170887195d50bada934ee

d31da313

Diff

@@ -65,7 +65,7 @@ class IsSemisimple : Prop where
 
 theorem isSemisimple_iff_no_solvable_ideals :
     IsSemisimple R L ↔ ∀ I : LieIdeal R L, IsSolvable R I → I = ⊥ :=
-  ⟨fun h => supₛ_eq_bot.mp h.semisimple, fun h => ⟨supₛ_eq_bot.mpr h⟩⟩
+  ⟨fun h => sSup_eq_bot.mp h.semisimple, fun h => ⟨sSup_eq_bot.mpr h⟩⟩
 #align lie_algebra.is_semisimple_iff_no_solvable_ideals LieAlgebra.isSemisimple_iff_no_solvable_ideals
 
 theorem isSemisimple_iff_no_abelian_ideals :

356447fe

bump to nightly-2023-03-06-06

mathlib commit https://github.com/leanprover-community/mathlib/commit/3b267e70a936eebb21ab546f49a8df34dd300b25

d7fb38f2

Diff

@@ -76,7 +76,7 @@ theorem isSemisimple_iff_no_abelian_ideals :
   · haveI : IsLieAbelian I := h₂
     apply h₁
     exact LieAlgebra.ofAbelianIsSolvable R I
-  · haveI : is_solvable R I := h₂
+  · haveI : IsSolvable R I := h₂
     rw [← abelian_of_solvable_ideal_eq_bot_iff]
     apply h₁
     exact abelian_derived_abelian_of_ideal I

356447fe

bump to nightly-2023-02-21-16

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

1107b979

Changes in mathlib4

mathlib3

mathlib4

356447fe

chore(*): remove empty lines between variable statements (#11418)

Empty lines were removed by executing the following Python script twice

import os
import re


# Loop through each file in the repository
for dir_path, dirs, files in os.walk('.'):
  for filename in files:
    if filename.endswith('.lean'):
      file_path = os.path.join(dir_path, filename)

      # Open the file and read its contents
      with open(file_path, 'r') as file:
        content = file.read()

      # Use a regular expression to replace sequences of "variable" lines separated by empty lines
      # with sequences without empty lines
      modified_content = re.sub(r'(variable.*\n)\n(variable(?! .* in))', r'\1\2', content)

      # Write the modified content back to the file
      with open(file_path, 'w') as file:
        file.write(modified_content)

75c86f04

Diff

@@ -41,7 +41,6 @@ class LieModule.IsIrreducible (R : Type u) (L : Type v) (M : Type w) [CommRing R
 namespace LieAlgebra
 
 variable (R : Type u) (L : Type v)
-
 variable [CommRing R] [LieRing L] [LieAlgebra R L]
 
 /-- A Lie algebra is simple if it is irreducible as a Lie module over itself via the adjoint

356447fe

feat: if a Lie algebra has non-degenerate Killing form then its Cartan subalgebras are Abelian (#8430)

Note: the proof (due to Zassenhaus) makes no assumption about the characteristic of the coefficients.

43b4712c

Diff

@@ -98,7 +98,7 @@ theorem subsingleton_of_semisimple_lie_abelian [IsSemisimple R L] [h : IsLieAbel
 #align lie_algebra.subsingleton_of_semisimple_lie_abelian LieAlgebra.subsingleton_of_semisimple_lie_abelian
 
 theorem abelian_radical_of_semisimple [IsSemisimple R L] : IsLieAbelian (radical R L) := by
-  rw [IsSemisimple.semisimple]; exact isLieAbelian_bot R L
+  rw [IsSemisimple.semisimple]; infer_instance
 #align lie_algebra.abelian_radical_of_semisimple LieAlgebra.abelian_radical_of_semisimple
 
 /-- The two properties shown to be equivalent here are possible definitions for a Lie algebra

356447fe

refactor: rename Submodule.ofLe to Submodule.inclusion (#8470)

This matches Set.inclusion, Subring.inclusion, Subalgebra.inclusion, etc.

Also renames the homOfLe spellings in Algebra/Lie to match.

Note that we leave LieSubalgebra.ofLe, as this is a completely different statement!

As requested by @alreadydone.

b1febe50

Diff

@@ -111,7 +111,7 @@ theorem abelian_radical_iff_solvable_is_abelian [IsNoetherian R L] :
   constructor
   · rintro h₁ I h₂
     rw [LieIdeal.solvable_iff_le_radical] at h₂
-    exact (LieIdeal.homOfLe_injective h₂).isLieAbelian h₁
+    exact (LieIdeal.inclusion_injective h₂).isLieAbelian h₁
   · intro h; apply h; infer_instance
 #align lie_algebra.abelian_radical_iff_solvable_is_abelian LieAlgebra.abelian_radical_iff_solvable_is_abelian

356447fe

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

@@ -2,14 +2,11 @@
 Copyright (c) 2021 Oliver Nash. All rights reserved.
 Released under Apache 2.0 license as described in the file LICENSE.
 Authors: Oliver Nash
-
-! This file was ported from Lean 3 source module algebra.lie.semisimple
-! leanprover-community/mathlib commit 356447fe00e75e54777321045cdff7c9ea212e60
-! Please do not edit these lines, except to modify the commit id
-! if you have ported upstream changes.
 -/
 import Mathlib.Algebra.Lie.Solvable
 
+#align_import algebra.lie.semisimple from "leanprover-community/mathlib"@"356447fe00e75e54777321045cdff7c9ea212e60"
+
 /-!
 # Semisimple Lie algebras

356447fe

feat: port Algebra.Lie.Semisimple (#4680)

11c160d2

`algebra.lie.semisimple` ⟷ `Mathlib.Algebra.Lie.Semisimple`

Changes since the initial port

Changes in mathlib3

Changes in mathlib3port

Changes in mathlib4

Dependencies 8 + 471

algebra.lie.semisimple ⟷ Mathlib.Algebra.Lie.Semisimple

Changes since the initial port

Changes in mathlib3

Changes in mathlib3port

Changes in mathlib4

Dependencies 8 + 471

`algebra.lie.semisimple` ⟷ `Mathlib.Algebra.Lie.Semisimple`