lean_workbook_plus_43574

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

Since $I+J = 4$ and $I-J = \pi$ , we have that $I = \dfrac{4+\pi}{2}$ and $J = \dfrac{4-\pi}{2}$ as desired.

Preamble

import Mathlib.Analysis.Complex.Basic

Formal statement

theorem lean_workbook_plus_43574 (I J : ℝ) (h₁ : I + J = 4) (h₂ : I - J = Real.pi) : I = (4 + Real.pi) / 2 ∧ J = (4 - Real.pi) / 2   :=  by sorry

Source