no goals
α : Type u_1
β : Type ?u.709067
γ : Type ?u.709070
δ : Type ?u.709073
ι : Type ?u.709076
R : Type ?u.709079
R' : Type ?u.709082
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✝ : IsProbabilityMeasure μ
hs : MeasurableSet s
⊢ ↑↑μ (sᶜ) = 1 ↔ ↑↑μ s = 0
rw [← prob_compl_eq_zero_iff hs.compl, compl_compl]