Loogle!

Result

Found 11 declarations mentioning LieSubalgebra.map.

• LieSubalgebra.map 📋 Mathlib.Algebra.Lie.Subalgebra
  {R : Type u} {L : Type v} [CommRing R] [LieRing L] [LieAlgebra R L] {L₂ : Type w} [LieRing L₂] [LieAlgebra R L₂] (f : L →ₗ⁅R⁆ L₂) (K : LieSubalgebra R L) : LieSubalgebra R L₂
• LieHom.range_eq_map 📋 Mathlib.Algebra.Lie.Subalgebra
  {R : Type u} {L : Type v} [CommRing R] [LieRing L] [LieAlgebra R L] {L₂ : Type w} [LieRing L₂] [LieAlgebra R L₂] (f : L →ₗ⁅R⁆ L₂) : f.range = LieSubalgebra.map f ⊤
• LieSubalgebra.gc_map_comap 📋 Mathlib.Algebra.Lie.Subalgebra
  {R : Type u} {L : Type v} [CommRing R] [LieRing L] [LieAlgebra R L] {L₂ : Type w} [LieRing L₂] [LieAlgebra R L₂] {f : L →ₗ⁅R⁆ L₂} : GaloisConnection (LieSubalgebra.map f) (LieSubalgebra.comap f)
• LieSubalgebra.map_le_iff_le_comap 📋 Mathlib.Algebra.Lie.Subalgebra
  {R : Type u} {L : Type v} [CommRing R] [LieRing L] [LieAlgebra R L] {L₂ : Type w} [LieRing L₂] [LieAlgebra R L₂] {f : L →ₗ⁅R⁆ L₂} {K : LieSubalgebra R L} {K' : LieSubalgebra R L₂} : LieSubalgebra.map f K ≤ K' ↔ K ≤ LieSubalgebra.comap f K'
• LieSubalgebra.mem_map 📋 Mathlib.Algebra.Lie.Subalgebra
  {R : Type u} {L : Type v} [CommRing R] [LieRing L] [LieAlgebra R L] {L₂ : Type w} [LieRing L₂] [LieAlgebra R L₂] (f : L →ₗ⁅R⁆ L₂) (K : LieSubalgebra R L) (x : L₂) : x ∈ LieSubalgebra.map f K ↔ ∃ y ∈ K, f y = x
• LieEquiv.ofSubalgebras 📋 Mathlib.Algebra.Lie.Subalgebra
  {R : Type u} {L₁ : Type v} {L₂ : Type w} [CommRing R] [LieRing L₁] [LieRing L₂] [LieAlgebra R L₁] [LieAlgebra R L₂] (L₁' : LieSubalgebra R L₁) (L₂' : LieSubalgebra R L₂) (e : L₁ ≃ₗ⁅R⁆ L₂) (h : LieSubalgebra.map e.toLieHom L₁' = L₂') : ↥L₁' ≃ₗ⁅R⁆ ↥L₂'
• LieEquiv.lieSubalgebraMap 📋 Mathlib.Algebra.Lie.Subalgebra
  {R : Type u} {L₁ : Type v} {L₂ : Type w} [CommRing R] [LieRing L₁] [LieRing L₂] [LieAlgebra R L₁] [LieAlgebra R L₂] (L₁'' : LieSubalgebra R L₁) (e : L₁ ≃ₗ⁅R⁆ L₂) : ↥L₁'' ≃ₗ⁅R⁆ ↥(LieSubalgebra.map e.toLieHom L₁'')
• LieSubalgebra.mem_map_submodule 📋 Mathlib.Algebra.Lie.Subalgebra
  {R : Type u} {L : Type v} [CommRing R] [LieRing L] [LieAlgebra R L] {L₂ : Type w} [LieRing L₂] [LieAlgebra R L₂] (K : LieSubalgebra R L) (e : L ≃ₗ⁅R⁆ L₂) (x : L₂) : x ∈ LieSubalgebra.map e.toLieHom K ↔ x ∈ Submodule.map (↑e.toLinearEquiv) K.toSubmodule
• LieEquiv.ofSubalgebras_apply 📋 Mathlib.Algebra.Lie.Subalgebra
  {R : Type u} {L₁ : Type v} {L₂ : Type w} [CommRing R] [LieRing L₁] [LieRing L₂] [LieAlgebra R L₁] [LieAlgebra R L₂] (L₁' : LieSubalgebra R L₁) (L₂' : LieSubalgebra R L₂) (e : L₁ ≃ₗ⁅R⁆ L₂) (h : LieSubalgebra.map e.toLieHom L₁' = L₂') (x : ↥L₁') : ↑((LieEquiv.ofSubalgebras L₁' L₂' e h) x) = e ↑x
• LieEquiv.ofSubalgebras_symm_apply 📋 Mathlib.Algebra.Lie.Subalgebra
  {R : Type u} {L₁ : Type v} {L₂ : Type w} [CommRing R] [LieRing L₁] [LieRing L₂] [LieAlgebra R L₁] [LieAlgebra R L₂] (L₁' : LieSubalgebra R L₁) (L₂' : LieSubalgebra R L₂) (e : L₁ ≃ₗ⁅R⁆ L₂) (h : LieSubalgebra.map e.toLieHom L₁' = L₂') (x : ↥L₂') : ↑((LieEquiv.ofSubalgebras L₁' L₂' e h).symm x) = e.symm ↑x
• LieEquiv.lieSubalgebraMap_apply 📋 Mathlib.Algebra.Lie.Subalgebra
  {R : Type u} {L₁ : Type v} {L₂ : Type w} [CommRing R] [LieRing L₁] [LieRing L₂] [LieAlgebra R L₁] [LieAlgebra R L₂] (L₁'' : LieSubalgebra R L₁) (e : L₁ ≃ₗ⁅R⁆ L₂) (x : ↥L₁'') : ↑((LieEquiv.lieSubalgebraMap L₁'' e) x) = e ↑x

About

Loogle searches Lean and Mathlib definitions and theorems.

You can use Loogle from within the Lean4 VSCode language extension using (by default) Ctrl-K Ctrl-S. You can also try the #loogle command from LeanSearchClient, the CLI version, the Loogle VS Code extension, the lean.nvim integration or the Zulip bot.

Usage

Loogle finds definitions and lemmas in various ways:

1. By constant:
   🔍 Real.sin
   finds all lemmas whose statement somehow mentions the sine function.

2. By lemma name substring:
   🔍 "differ"
   finds all lemmas that have "differ" somewhere in their lemma name.

3. By subexpression:
   🔍 _ * (_ ^ _)
   finds all lemmas whose statements somewhere include a product where the second argument is raised to some power.

   The pattern can also be non-linear, as in
   🔍 Real.sqrt ?a * Real.sqrt ?a

   If the pattern has parameters, they are matched in any order. Both of these will find List.map:
   🔍 (?a -> ?b) -> List ?a -> List ?b
   🔍 List ?a -> (?a -> ?b) -> List ?b

4. By main conclusion:
   🔍 |- tsum _ = _ * tsum _
   finds all lemmas where the conclusion (the subexpression to the right of all → and ∀) has the given shape.

   As before, if the pattern has parameters, they are matched against the hypotheses of the lemma in any order; for example,
   🔍 |- _ < _ → tsum _ < tsum _
   will find tsum_lt_tsum even though the hypothesis f i < g i is not the last.

If you pass more than one such search filter, separated by commas Loogle will return lemmas which match all of them. The search
🔍 Real.sin, "two", tsum, _ * _, _ ^ _, |- _ < _ → _
would find all lemmas which mention the constants Real.sin and tsum, have "two" as a substring of the lemma name, include a product and a power somewhere in the type, and have a hypothesis of the form _ < _ (if there were any such lemmas). Metavariables (?a) are assigned independently in each filter.

The #lucky button will directly send you to the documentation of the first hit.

Source code

You can find the source code for this service at https://github.com/nomeata/loogle. The https://loogle.lean-lang.org/ service is provided by the Lean FRO.

This is Loogle revision 19971e9 serving mathlib revision bce1d65