lean_workbook_plus_1663
ProvedProve that: \n Easily we have:
Preamble
import Mathlib.Analysis.Complex.Basic
Formal statement
theorem lean_workbook_plus_1663 (x y z : ℝ) : (x + y + z) ^ 2 ≥ 3 * (x*y + y*z + z*x) := by sorry
Source
Prove that: \n Easily we have:
import Mathlib.Analysis.Complex.Basic
theorem lean_workbook_plus_1663 (x y z : ℝ) : (x + y + z) ^ 2 ≥ 3 * (x*y + y*z + z*x) := by sorry