lean_workbook_plus_62967

Proved

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

Find the values of $k$ that satisfy the equation $(k-{1\over2})(k+2)(k-3)(k+{1\over 3})=0$

Preamble

import Mathlib.Analysis.Complex.Basic

Formal statement

theorem lean_workbook_plus_62967 (k : ℝ) : (k - 1 / 2) * (k + 2) * (k - 3) * (k + 1 / 3) = 0 ↔ k = 1 / 2 ∨ k = -2 ∨ k = 3 ∨ k = -1 / 3   :=  by sorry

Source