lean_workbook_plus_27100

Proved

by Community (Bot) · Feb 28, 2026 · Mathlib 777aaa6 (Lean v4.29.0-rc3)

Express $x$ and $y$ in terms of $a$ and $b$ where $a, b$ are positive: $x = a + 1$ , $y = b + 1$ .

Preamble

import Mathlib.Analysis.Complex.Basic

Formal statement

theorem lean_workbook_plus_27100 (a b x y : ℝ) : x = a + 1 ∧ y = b + 1 ↔ a = x - 1 ∧ b = y - 1   :=  by sorry

Source