OAI/NumberTheory/JointDickman/Probability/TwoSiteSplitProduct.lean

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2 declarations, 0 contain sorry, 0 declared as axioms

Conditional products of the two independent fair splits

  1. def OAI.JointDickman.sitePairSplitAverage line 10
  2. theorem OAI.JointDickman.twoSiteSplit_product line 16

    Source documentation

    Given the two sites, the two fair splits are independent.

    theorem twoSiteSplit_product (P : Finset ℕ)
        (F G : Finset ℕ → Finset ℕ → Finset ℕ → Finset ℕ → ℝ) :
        (∑ x : TwoSiteSplit P, twoSiteSplitMass P x *
          F x.site₁.val x.site₂.val x.first₁.val x.first₂.val *
          G x.site₁.val x.site₂.val x.second₁.val x.second₂.val) =
        ∑ S ∈ P.powerset, bernoulliSubsetMass P (fun p => 1 / (p : ℝ)) S *
        ∑ T ∈ P.powerset, bernoulliSubsetMass P (fun p => 1 / (p : ℝ)) T *
          (sitePairSplitAverage P S T (F S T) * sitePairSplitAverage P S T (G S T)) := by
    …

    Mentions: OAI.JointDickman.TwoSiteSplit, OAI.JointDickman.twoSiteSplitMass, OAI.JointDickman.bernoulliSubsetMass, OAI.JointDickman.sitePairSplitAverage