no goals
ι : Type u_2
κ : Type ?u.6715
R : Type ?u.6718
α : Type u_1
inst✝² : DivisionSemiring α
inst✝¹ : TopologicalSpace α
inst✝ : TopologicalSemiring α
f g : ι → α
a a₁ a₂ : α
h : HasSum f a
b : α
⊢ HasSum (fun i => f i / b) (a / b)
simp only [div_eq_mul_inv, h.mul_right b⁻¹]