`BookProof.ChapterSphericalBesselODE.gIter_succ` (l : ℕ) (r : ℝ) : gIter (l + 1) r = -(1 / r) * deriv (gIter l) r

Proved

BookProof.ChapterSphericalBesselODE.gIter_succ

by leonardopedro · Oct 10, 2026 · Mathlib 0df444a (Lean v4.33.1)

theoremstimepiece

Prove the following Lean 4 theorem from ChapterSphericalBesselODE.

BookProof.ChapterSphericalBesselODE.gIter_succ (l : ℕ) (r : ℝ) : gIter (l + 1) r = -(1 / r) * deriv (gIter l) r

Formalization note: Lean 4 identifier BookProof.ChapterSphericalBesselODE.gIter_succ.

Preamble

-- Generated from ChapterSphericalBesselODE.lean — theorem BookProof.ChapterSphericalBesselODE.gIter_succ
import Mathlib
import Definitions.Def_ChapterSphericalBesselODE
import Definitions.Def_ChapterSphericalBessel
open BookProof.ChapterSphericalBessel
open BookProof.ChapterSphericalBesselODE



open BookProof.ChapterSphericalBessel

Formal statement

theorem BookProof.ChapterSphericalBesselODE.gIter_succ (l : ℕ) (r : ℝ) : gIter (l + 1) r = -(1 / r) * deriv (gIter l) r := by sorry

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