lean_workbook_plus_7907
ProvedYes, I am sure that it is not rue for ALL
Preamble
import Mathlib.Analysis.Complex.Basic
Formal statement
theorem lean_workbook_plus_7907 : ∀ x : ℝ, x^3 ≥ x ↔ x * (x^2 - 1) ≥ 0 := by sorry
Source
Yes, I am sure that it is not rue for ALL
import Mathlib.Analysis.Complex.Basic
theorem lean_workbook_plus_7907 : ∀ x : ℝ, x^3 ≥ x ↔ x * (x^2 - 1) ≥ 0 := by sorry