lean_workbook_plus_58188
ProvedProve that for all .
Preamble
import Mathlib.Analysis.Complex.Basic
Formal statement
theorem lean_workbook_plus_58188 (x y : ℝ) : |(x + y) / ((1 + x ^ 2) * (1 + y ^ 2))| ≤ 1 := by sorry
Source
Prove that for all .
import Mathlib.Analysis.Complex.Basic
theorem lean_workbook_plus_58188 (x y : ℝ) : |(x + y) / ((1 + x ^ 2) * (1 + y ^ 2))| ≤ 1 := by sorry