Set: pp::colors
  Set: pp::unicode
  Imported 'specialfn'
  Defined: f
  Defined: g
  Defined: h
Definition f (x y : ℕ) : ℕ := x + y
Definition g (x y : ℝ) : ℝ := sin x + y
Definition h (x y : ℝ) : ℝ := x * sin (x + y)