lean_workbook_plus_6994
ProvedKnown . . Solve
Preamble
import Mathlib.Analysis.Complex.Basic
Formal statement
theorem lean_workbook_plus_6994 (a b c : ℝ) (ha : a ^ 2 + b ^ 2 + c ^ 2 = 1) : a * b + b * c + c * a ≥ -1 / 2 := by sorry
Source
Known . . Solve
import Mathlib.Analysis.Complex.Basic
theorem lean_workbook_plus_6994 (a b c : ℝ) (ha : a ^ 2 + b ^ 2 + c ^ 2 = 1) : a * b + b * c + c * a ≥ -1 / 2 := by sorry