lean_workbook_plus_78821
ProvedShow that is divisible by for every positive integer .
Preamble
import Mathlib.Analysis.Complex.Basic
Formal statement
theorem lean_workbook_plus_78821 (n : ℕ) : 8 ∣ 9 ^ n - 1 := by sorry
Source
Show that is divisible by for every positive integer .
import Mathlib.Analysis.Complex.Basic
theorem lean_workbook_plus_78821 (n : ℕ) : 8 ∣ 9 ^ n - 1 := by sorry