lean_workbook_plus_6211
Disprovedprove
Preamble
import Mathlib.Analysis.Complex.Basic
Formal statement
theorem lean_workbook_plus_6211 : ∀ a b c : ℝ, (a / (1 + b * c) + b / (1 + c * a) + c / (1 + a * b) + a * b * c ≤ 5 / 2) := by sorry
Source
prove
import Mathlib.Analysis.Complex.Basic
theorem lean_workbook_plus_6211 : ∀ a b c : ℝ, (a / (1 + b * c) + b / (1 + c * a) + c / (1 + a * b) + a * b * c ≤ 5 / 2) := by sorry