lean_workbook_plus_890
ProvedProve that is odd for all positive integers
Preamble
import Mathlib.Analysis.Complex.Basic
Formal statement
theorem lean_workbook_plus_890 : ∀ n : ℕ, Odd (9^(n-1) + 3^(n-1) + 1) := by sorry
Source
Prove that is odd for all positive integers
import Mathlib.Analysis.Complex.Basic
theorem lean_workbook_plus_890 : ∀ n : ℕ, Odd (9^(n-1) + 3^(n-1) + 1) := by sorry