lean_workbook_plus_82736

Proved

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

Prove that $\sqrt{3+2\sqrt{2}} = \sqrt{2} + 1$ .

Preamble

import Mathlib.Analysis.Complex.Basic

Formal statement

theorem lean_workbook_plus_82736 : √(3 + 2 * Real.sqrt 2) = √2 + 1   :=  by sorry

Source