lean_workbook_plus_74404
ProvedIf , then . Prove.
Preamble
import Mathlib.Analysis.Complex.Basic
Formal statement
theorem lean_workbook_plus_74404 (a : ℝ) (ha : a ≥ 0) : 5 * (a ^ 2 - a + 1) ^ 2 ≥ 2 * (1 + a ^ 4) := by sorry
Source
If , then . Prove.
import Mathlib.Analysis.Complex.Basic
theorem lean_workbook_plus_74404 (a : ℝ) (ha : a ≥ 0) : 5 * (a ^ 2 - a + 1) ^ 2 ≥ 2 * (1 + a ^ 4) := by sorry