(motive : Option (Lean.Expr × Lean.Expr) → Sort u_1) →
  (__discr : Option (Lean.Expr × Lean.Expr)) →
    ((eNew' h₂ : Lean.Expr) → motive (some (eNew', h₂))) →
      ((x : Option (Lean.Expr × Lean.Expr)) → motive x) → motive __discr