no goals
α : Type u_2
β : Type u_1
γ : Type ?u.401923
ι : Type ?u.401926
inst✝³ : Countable ι
m : MeasurableSpace α
μ : Measure α
inst✝² : TopologicalSpace β
inst✝¹ : TopologicalSpace γ
f g : α → β
inst✝ : PseudoMetrizableSpace β
s t : Set α
⊢ AEStronglyMeasurable f (Measure.restrict μ (s ∪ t)) ↔
    AEStronglyMeasurable f (Measure.restrict μ s) ∧ AEStronglyMeasurable f (Measure.restrict μ t)
simp only [union_eq_iUnion, aestronglyMeasurable_iUnion_iff, Bool.forall_bool, cond, and_comm]