lean_workbook_plus_3711
ProvedIf and find
Preamble
import Mathlib.Analysis.Complex.Basic
Formal statement
theorem lean_workbook_plus_3711 (f : ℝ → ℝ) (hf : ∀ x, f (f x) = x^2 + 1/4) : f (1/2) = 1/2 := by sorry
Source
If and find
import Mathlib.Analysis.Complex.Basic
theorem lean_workbook_plus_3711 (f : ℝ → ℝ) (hf : ∀ x, f (f x) = x^2 + 1/4) : f (1/2) = 1/2 := by sorry