Theorem: MeasureTheory.measureReal_union₀' (Carleson/ToMathlib/MeasureReal.lean)

State before:
ι : Type u_1
α : Type u_2
β : Type u_3
x✝ : MeasurableSpace α
inst✝ : MeasurableSpace β
μ : Measure α
s s₁ s₂ t : Set α
hs : NullMeasurableSet s μ
hd : AEDisjoint μ s t
h₁ : autoParam (μ s ≠ ⊤) _auto✝
h₂ : autoParam (μ t ≠ ⊤) _auto✝
⊢ μ.real (s ∪ t) = μ.real s + μ.real t
Tactic:
rw [union_comm, measureReal_union₀ hs (AEDisjoint.symm hd) h₂ h₁, add_comm]
State after:
no goals