lean_workbook_plus_15043
ProvedIf , .Then .
Preamble
import Mathlib.Analysis.Complex.Basic
Formal statement
theorem lean_workbook_plus_15043 (a b : ℝ) (ha : 0 < a) (hb : 0 < b) : 1 / (a^2 + 1) + 1 / (b^2 + 1) = 1 ↔ a * b = 1 := by sorry
Source
If , .Then .
import Mathlib.Analysis.Complex.Basic
theorem lean_workbook_plus_15043 (a b : ℝ) (ha : 0 < a) (hb : 0 < b) : 1 / (a^2 + 1) + 1 / (b^2 + 1) = 1 ↔ a * b = 1 := by sorry