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Add lean source and binary files (part 19)
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import Mathlib.MeasureTheory.Integral.Prod
namespace OAI
noncomputable section
open MeasureTheory
namespace Invariant233.BiasedTailDensity
def tailDensity {P Z : Type*} [MeasurableSpace P] [MeasurableSpace Z]
(μ : Measure P) (g : P × Z → ℝ) (z : Z) : ℝ :=
∫ u, g (u, z) ∂μ
end Invariant233.BiasedTailDensity
end
end OAI