lean_workbook_plus_9252
ProvedProve that .
Preamble
import Mathlib.Analysis.Complex.Basic
Formal statement
theorem lean_workbook_plus_9252 (a b : ℝ) : |a - b| ≤ |a| + |b| := by sorry
Source
Prove that .
import Mathlib.Analysis.Complex.Basic
theorem lean_workbook_plus_9252 (a b : ℝ) : |a - b| ≤ |a| + |b| := by sorry