lean_workbook_plus_80373

Proved

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

Let $a, b$ , and $c$ be real numbers. If $a^3 + b^3 + c^3 = 64$ and $a + b = 0$ , what is the value of $c$ ?

Preamble

import Mathlib.Analysis.Complex.Basic

Formal statement

theorem lean_workbook_plus_80373 (a b c : ℝ) (h₁ : a^3 + b^3 + c^3 = 64) (h₂ : a + b = 0) : c = 4   :=  by sorry

Source