lean_workbook_plus_34873

Proved

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

Calculate $43\times2 - 1 - 5$

Preamble

import Mathlib.Analysis.Complex.Basic

Formal statement

theorem lean_workbook_plus_34873 : 43 * 2 - 1 - 5 = 80   :=  by sorry

Source