lean_workbook_plus_33967
ProvedProve that for the function , .
Preamble
import Mathlib.Analysis.Complex.Basic
Formal statement
theorem lean_workbook_plus_33967 (a b : ℝ) : |(a + b) / 2| ≤ (|a| + |b|) / 2 := by sorry
Source
Prove that for the function , .
import Mathlib.Analysis.Complex.Basic
theorem lean_workbook_plus_33967 (a b : ℝ) : |(a + b) / 2| ≤ (|a| + |b|) / 2 := by sorry