lean_workbook_plus_9114
ProvedProve that .
Preamble
import Mathlib.Analysis.Complex.Basic
Formal statement
theorem lean_workbook_plus_9114 (a b c : ℝ) : (a + b + c) ^ 2 ≥ 3 * (a * b + b * c + c * a) := by sorry
Source
Prove that .
import Mathlib.Analysis.Complex.Basic
theorem lean_workbook_plus_9114 (a b c : ℝ) : (a + b + c) ^ 2 ≥ 3 * (a * b + b * c + c * a) := by sorry