∀ {α : outParam (Type u)} {β : Type v} [self : Std.Tactic.BVDecide.LRAT.Internal.Clause α β] (c : β)
  (l : Std.Sat.Literal α),
  Std.Tactic.BVDecide.LRAT.Internal.Clause.isUnit c = some l ↔ Std.Tactic.BVDecide.LRAT.Internal.Clause.toList c = [l]