Tensor Product localcomponent apply
IsDedekindDomain.FiniteAdeleRing.TensorProduct.localcomponent_apply
Plain-language statement
If Ο : πΈ_K^f β V β πΈ_K^f β V is πΈ_K^f-linear and Οβ is its local component at a place p then for all x : πΈ_K^f β V we have (evalβ β id_V) (Ο x) = Οβ ((evalβ β id_V) x), or, more colloquiually, (Ο x)β = Οβ (xβ).
Exact Lean statement
lemma TensorProduct.localcomponent_apply
(Ο : FiniteAdeleRing R K β[K] V βL[FiniteAdeleRing R K] FiniteAdeleRing R K β[K] V)
(x : FiniteAdeleRing R K β[K] V) (p : HeightOneSpectrum R) :
(ContinuousLinearMap.rTensor' V
(evalContinuousAlgebraMap R K p).toContinuousLinearMap) (Ο x) =
TensorProduct.localcomponent R K V p Ο ((ContinuousLinearMap.rTensor' V
(evalContinuousAlgebraMap R K p).toContinuousLinearMap) x)Formal artifact
Lean source
lemma TensorProduct.localcomponent_apply (Ο : FiniteAdeleRing R K β[K] V βL[FiniteAdeleRing R K] FiniteAdeleRing R K β[K] V) (x : FiniteAdeleRing R K β[K] V) (p : HeightOneSpectrum R) : (ContinuousLinearMap.rTensor' V (evalContinuousAlgebraMap R K p).toContinuousLinearMap) (Ο x) = TensorProduct.localcomponent R K V p Ο ((ContinuousLinearMap.rTensor' V (evalContinuousAlgebraMap R K p).toContinuousLinearMap) x) := by dsimp [localcomponent] rw [β ContinuousLinearMap.rTensor'_comp_apply] change (LinearMap.rTensor V _) (Ο x) = (LinearMap.rTensor V _) (Ο ((LinearMap.rTensor V _) x)) rw [singleContinuousAlgebraMap_comp_evalContinuousLinearMap] let f := (LinearMap.lsmul (FiniteAdeleRing R K) (FiniteAdeleRing R K) (localIdempotent R K p)).restrictScalars K have hf : LinearMap.rTensor V f x = (localIdempotent R K p) β’ x := by induction x with | zero => simp | tmul x y => exact LinearMap.rTensor_tmul _ _ _ _ | add x y _ _ => simp_all rw [hf, ContinuousLinearMap.map_smul] change (AlgHom.rTensor V ((evalContinuousAlgebraMap R K p).toAlgHom)) (Ο x) = (AlgHom.rTensor V ((evalContinuousAlgebraMap R K p).toAlgHom)) (localIdempotent R K p β’ Ο x) simp [eval_localIdempotent]- Project
- Fermat's Last Theorem
- License
- Apache-2.0
- Commit
- 8dd808888295
- Source
- FLT/DedekindDomain/FiniteAdeleRing/TensorProduct.lean:116-137
Reuse this declaration
Bring the exact result into your workflow
The import identifies the source module. Your project still needs the pinned package dependency shown on this page.
What this badge means
This completion status comes from the project or community source. It has not yet been represented here as an independent rebuild and axiom audit.
Continue in this project
Related declarations
Eq finsum quotient out of bij On
AbstractHeckeOperator.eq_finsum_quotient_out_of_bijOn'
Plain-language statement
If a is fixed by V then βαΆ g β s, g β’ a is independent of the choice s of coset representatives in G for a subset of G β§Έ V
Source project: Fermat's Last Theorem
Person-level attribution pending.
Comm Group no compact automorphisms
CommGroup.no_compact_automorphisms
Plain-language statement
A connected compact Hausdorff abelian topological group does not admit a nontrivial compact group of automorphisms.
Source project: Fermat's Last Theorem
Person-level attribution pending.
Fermat Last Theorem of p ge 5
FermatLastTheorem.of_p_ge_5
Plain-language statement
If Fermat's Last Theorem is true for primes p β₯ 5, then FLT is true.
Source project: Fermat's Last Theorem
Person-level attribution pending.