lean_workbook_plus_6401
ProvedIf and , prove that .
Preamble
import Mathlib.Analysis.Complex.Basic
Formal statement
theorem lean_workbook_plus_6401 (x : ℝ) (a : ℝ) (hx : abs x ≥ 1) (h : x^5 - x^3 + x - 1 = a) : x^6 - 1 ≥ 2 * a := by sorry
Source
If and , prove that .
import Mathlib.Analysis.Complex.Basic
theorem lean_workbook_plus_6401 (x : ℝ) (a : ℝ) (hx : abs x ≥ 1) (h : x^5 - x^3 + x - 1 = a) : x^6 - 1 ≥ 2 * a := by sorry