{motive : Lean.Elab.Tactic.Do.ExceptCondsDefault✝ → Sort u} →
  (t : Lean.Elab.Tactic.Do.ExceptCondsDefault✝¹) →
    ((e : Lean.Expr) → motive (Lean.Elab.Tactic.Do.ExceptCondsDefault.other✝ e)) →
      (Nat.hasNotBit 8 (Lean.Elab.Tactic.Do.ExceptCondsDefault.ctorIdx✝ t) → motive t) → motive t