(motive : Option Lean.MVarId × Lean.Meta.Simp.Stats → Sort u_1) →
  (__discr : Option Lean.MVarId × Lean.Meta.Simp.Stats) →
    ((r : Lean.MVarId) → (snd : Lean.Meta.Simp.Stats) → motive (some r, snd)) →
      ((x : Option Lean.MVarId × Lean.Meta.Simp.Stats) → motive x) → motive __discr