lean_workbook_plus_2372
ProvedProve that
Preamble
import Mathlib.Analysis.Complex.Basic
Formal statement
theorem lean_workbook_plus_2372 (a b c : ℝ) : 3 * (a ^ 2 + b ^ 2 + c ^ 2) ≥ (a + b + c) ^ 2 := by sorry
Source
Prove that
import Mathlib.Analysis.Complex.Basic
theorem lean_workbook_plus_2372 (a b c : ℝ) : 3 * (a ^ 2 + b ^ 2 + c ^ 2) ≥ (a + b + c) ^ 2 := by sorry