lean_workbook_plus_60474
Disprovedprove
Preamble
import Mathlib.Analysis.Complex.Basic
Formal statement
theorem lean_workbook_plus_60474 : ∀ a b c : ℝ, 4 * (a * b + b * c + c * a) * (a ^ 2 * b + a * b ^ 2 + b ^ 2 * c + b * c ^ 2 + c ^ 2 * a + c * a ^ 2) ≤ (a + b + c) ^ 2 * (a + b) * (b + c) * (c + a) := by sorry
Source