lean_workbook_plus_76897

import Mathlib.Analysis.Complex.Basic

theorem lean_workbook_plus_76897 (a b c : ℝ) : 2 * (a ^ 4 + b ^ 4 + c ^ 4) ≥ a ^ 3 * b + a ^ 3 * c + b ^ 3 * a + b ^ 3 * c + c ^ 3 * a + c ^ 3 * b   :=  by sorry