OAI/NumberTheory/Ostmann/Arithmetic/BulkCoordinateEnumeration.lean
2 declarations, 0 contain sorry, 0 declared as axioms
Enumerating the actual bulk slots leaves their product law unchanged
- theorem
OAI.Ostmann.bulkCoordinateInsert_reindexline 11 - theorem
OAI.Ostmann.BulkIntegrand.selected_bulk_integral_enumline 30Source documentation
The finite enumeration may be chosen for the proof while the product integral remains indexed by the original tree-and-word bulk coordinates.
theorem BulkIntegrand.selected_bulk_integral_enum {σ J : Type*} [Fintype σ] [Fintype J] {k : ℕ} (f : BulkIntegrand σ) (base : σ → ℝ) (e : J ↪ σ) (g : Fin k ≃ J) (μ : σ → Measure ℝ) [∀ i, IsFiniteMeasure (μ i)] (y : J → ℝ) : f.averages μ ((List.finRange k).map (fun j => e (g j))) (bulkCoordinateInsert base e y) = ∫ z, f (bulkCoordinateInsert base e z) ∂Measure.pi (fun j => μ (e j)) := by …Mentions: OAI.Ostmann.BulkIntegrand, OAI.Ostmann.bulkCoordinateInsert