`BookProof.CarlemanUnboundedHop.Theta_nonneg` (hθ0 : ∀ r, 0 ≤ θ r) (hΘ : ∀ j, HasSum (fun i => θ (i + j + 1)) (Θ j)) (j : ℕ) : 0 ≤ Θ j

Proved

BookProof.CarlemanUnboundedHop.Theta_nonneg

by leonardopedro · Oct 7, 2026 · Mathlib 0df444a (Lean v4.33.1)

theoremstimepiece

Prove the following Lean 4 theorem from ChapterCarlemanUnboundedHop.

BookProof.CarlemanUnboundedHop.Theta_nonneg (hθ0 : ∀ r, 0 ≤ θ r) (hΘ : ∀ j, HasSum (fun i => θ (i + j + 1)) (Θ j)) (j : ℕ) : 0 ≤ Θ j

Formalization note: Lean 4 identifier BookProof.CarlemanUnboundedHop.Theta_nonneg.

Preamble

-- Generated from ChapterCarlemanUnboundedHop.lean — theorem BookProof.CarlemanUnboundedHop.Theta_nonneg
import Mathlib
import Definitions.Def_ChapterCarlemanUnboundedHop
open BookProof.CarlemanUnboundedHop



open Finset

noncomputable section

variable {a : ℕ → ℕ → ℂ} {u : ℕ → ℂ} {A θ Θ : ℕ → ℝ}

Formal statement

theorem BookProof.CarlemanUnboundedHop.Theta_nonneg (hθ0 : ∀ r, 0 ≤ θ r)
    (hΘ : ∀ j, HasSum (fun i => θ (i + j + 1)) (Θ j)) (j : ℕ) : 0 ≤ Θ j := by sorry

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