lean_workbook_plus_54607

Proved

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

Prove that $a^2 + b^2 = 29^2$ where $a = 20$ and $b = 21$ .

Preamble

import Mathlib.Analysis.Complex.Basic

Formal statement

theorem lean_workbook_plus_54607 : 20^2 + 21^2 = 29^2   :=  by sorry

Source