lean_workbook_plus_24147

Proved

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

In the first equation, we have: \n $3x^2=23\implies x=\pm\sqrt{\frac{23}{3}}$ .

Preamble

import Mathlib.Analysis.Complex.Basic

Formal statement

theorem lean_workbook_plus_24147  (x : ℝ)
  (h₀ : 3 * x^2 = 23) :
  x = Real.sqrt (23 / 3) ∨ x = -Real.sqrt (23 / 3)   :=  by sorry

Source