lean_workbook_plus_12654
ProvedProve that for every x real number is valid .
Preamble
import Mathlib.Analysis.Complex.Basic
Formal statement
theorem lean_workbook_plus_12654 (x : ℝ) : x ^ 4 - x ^ 3 - x + 1 ≥ 0 := by sorry
Source
Prove that for every x real number is valid .
import Mathlib.Analysis.Complex.Basic
theorem lean_workbook_plus_12654 (x : ℝ) : x ^ 4 - x ^ 3 - x + 1 ≥ 0 := by sorry