lean_workbook_plus_38235

Proved

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

Determine if the statement 'For all integers $n$ , if $n$ is even, then $n^2$ is even.' is true or false.

Preamble

import Mathlib.Analysis.Complex.Basic

Formal statement

theorem lean_workbook_plus_38235 : ∀ n : ℤ, Even n → Even (n^2)   :=  by sorry

Source