lean_workbook_plus_22947

Disproved

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

Case 1 : If $a=c=0$ set of solutions is $\mathbb R$

Preamble

import Mathlib.Analysis.Complex.Basic

Formal statement

theorem lean_workbook_plus_22947 (a b c : ℝ) (h₁ : a = 0) (h₂ : c = 0) : Set.univ = {x : ℝ | x^2 + b * x + 0 = 0}   :=  by sorry

Source