OAI/NumberTheory/JointDickman/Probability/TwoSiteCoinLaw.lean

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The full two-site law in the common conditional coin average

  1. theorem OAI.JointDickman.twoSplitSiteAverage_coin line 10
  2. theorem OAI.JointDickman.twoSiteSplit_coin_law line 34

    Source documentation

    Exact disintegration by the two first coefficients, followed by the conditional remaining-set and second-coin law.

    theorem twoSiteSplit_coin_law (P : Finset ℕ) (hP : ∀ p ∈ P, p.Prime)
        (F : Finset ℕ → Finset ℕ → Finset ℕ → Finset ℕ →
          Finset ℕ → Finset ℕ → Finset ℕ → Finset ℕ → ℝ) :
        (∑ x : TwoSiteSplit P, twoSiteSplitMass P x *
          F x.first₁.val (x.site₁.val \ x.first₁.val) x.second₁.val (x.site₁.val \ x.second₁.val)
            x.first₂.val (x.site₂.val \ x.first₂.val) x.second₂.val (x.site₂.val \ x.second₂.val)) =
        ∑ A ∈ P.powerset, bernoulliSubsetMass P (fun p => (1 / 2 : ℝ) / p) A *
        ∑ D ∈ P.powerset, bernoulliSubsetMass P (fun p => (1 / 2 : ℝ) / p) D *
          conditionalCoinAverage P A D (fun R Q I J U V =>
            F A R (I ∪ U) ((A \ I) ∪ (R \ U)) D Q (J ∪ V) ((D \ J) ∪ (Q \ V))) := by
    …

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