no goals
α : Type u_2
α' : Type ?u.5372563
β : Type u_1
β' : Type ?u.5372569
γ : Type ?u.5372572
E : Type ?u.5372575
inst✝⁶ : MeasurableSpace α
inst✝⁵ : MeasurableSpace α'
inst✝⁴ : MeasurableSpace β
inst✝³ : MeasurableSpace β'
inst✝² : MeasurableSpace γ
μ μ' : Measure α
ν ν' : Measure β
τ : Measure γ
inst✝¹ : NormedAddCommGroup E
inst✝ : SigmaFinite ν
ρ : Measure (α × β)
s : Set β
hs : MeasurableSet s
⊢ ↑↑(snd ρ) s = ↑↑ρ (Prod.snd ⁻¹' s)
rw [snd, Measure.map_apply measurable_snd hs]