lean_workbook_plus_19483

Proved

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

Prove $(a^2+b^2+c^2)^3\geq a^6+b^6+c^6$

Preamble

import Mathlib.Analysis.Complex.Basic

Formal statement

theorem lean_workbook_plus_19483 (a b c : ℝ) : (a^2+b^2+c^2)^3 ≥ a^6+b^6+c^6   :=  by sorry

Source