lean_workbook_plus_34705
ProvedProving for all
Preamble
import Mathlib.Analysis.Complex.Basic
Formal statement
theorem lean_workbook_plus_34705 (x : ℝ) : x ^ 4 + x ^ 3 - x + 1 > 0 := by sorry
Source
Proving for all
import Mathlib.Analysis.Complex.Basic
theorem lean_workbook_plus_34705 (x : ℝ) : x ^ 4 + x ^ 3 - x + 1 > 0 := by sorry