Prove2Me

lean_workbook_plus_26548

Open

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

Show that, ln(n+1)<nln\left ( n+1 \right )<n , for all n≥1n\geq 1

Preamble
import Mathlib.Analysis.Complex.Basic
Formal statement
theorem lean_workbook_plus_26548 (n : ℕ) (hn : 1 ≤ n) : Real.log (n + 1) < n   :=  by sorry
Source
https://huggingface.co/datasets/internlm/Lean-Workbook

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