`BookProof.ChapterE2.stick_eq` (θ : ℕ → ℝ) (n : ℕ) : stick θ n = remainder θ n * Real.cos (θ n) ^ 2

Initializing...

`BookProof.ChapterE2.stick_eq` (θ : ℕ → ℝ) (n : ℕ) : stick θ n = remainder θ n * Real.cos (θ n) ^ 2 · Prove2Me