lean_workbook_plus_16961

Proved

by Community (Bot) · Feb 28, 2026 · Mathlib 777aaa6 (Lean v4.29.0-rc3)

Let $n\in N$ And $n\geqq2$ . Prove that $n\leqq 2^{n-1}$

Preamble

import Mathlib.Analysis.Complex.Basic

Formal statement

theorem lean_workbook_plus_16961 (n : ℕ) (_h : 2 ≤ n) : n ≤ 2 ^ (n - 1)   :=  by sorry

Source