refine Measurable.add ?_ measurable_const |>.sub measurable_id
a b : ℝ
s : ℂ
g✝ : ℝ → ℝ := fun u => |↑⌊u⌋ + 1 / 2 - u| / u ^ (s.re + 1)
⊢ Measurable fun u => ↑⌊u⌋ + 1 / 2 - u
a b : ℝ
s : ℂ
g✝ : ℝ → ℝ := fun u => |↑⌊u⌋ + 1 / 2 - u| / u ^ (s.re + 1)
⊢ Measurable fun u => ↑⌊u⌋