no goals
α : Type u_2
β : Type ?u.319493
γ : Type ?u.319496
δ : Type ?u.319499
ι : Type u_1
R : Type ?u.319505
R' : Type ?u.319508
m0 : MeasurableSpace α
inst✝² : MeasurableSpace β
inst✝¹ : MeasurableSpace γ
μ μ₁ μ₂ μ₃ ν ν' ν₁ ν₂ : Measure α
s✝ s' t : Set α
inst✝ : Countable ι
s : ι → Set α
hs : (⋃ (i : ι), s i) = univ
⊢ μ = ν ↔ ∀ (i : ι), restrict μ (s i) = restrict ν (s i)
rw [← restrict_iUnion_congr, hs, restrict_univ, restrict_univ]