`RecidivismCert`

definition

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module: IndisputableMonolith.CriminalJustice.RecidivismFromJCost
domain: CriminalJustice
line: 64 · github
papers citing: none yet

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open lean source

IndisputableMonolith.CriminalJustice.RecidivismFromJCost on GitHub at line 64.

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formal source

  61    Jcost phi = phi - 3 / 2 := by
  62  exact Jcost_phi_val
  63
  64structure RecidivismCert where
  65  cost_at_equilibrium : ∀ r : ℝ, r ≠ 0 → recidivismCost r r = 0
  66  cost_nonneg : ∀ r b : ℝ, 0 < r → 0 < b → 0 ≤ recidivismCost r b
  67  cost_reciprocal : ∀ r b : ℝ, 0 < r → 0 < b →
  68    recidivismCost r b = recidivismCost b r
  69  phi_step : Jcost phi = phi - 3 / 2
  70
  71noncomputable def cert : RecidivismCert where
  72  cost_at_equilibrium := recidivismCost_at_equilibrium
  73  cost_nonneg := recidivismCost_nonneg
  74  cost_reciprocal := recidivismCost_reciprocal
  75  phi_step := recidivismCost_phi_step
  76
  77theorem cert_inhabited : Nonempty RecidivismCert := ⟨cert⟩
  78
  79end
  80end RecidivismFromJCost
  81end CriminalJustice
  82end IndisputableMonolith

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