Convert_to_monadic.Boolean_Forward
type boolean = D.boolean
val not : (boolean, boolean) Conversion.To_Arity.ar1
val (&&) : (boolean, boolean, boolean) Conversion.To_Arity.ar2
val (||) : (boolean, boolean, boolean) Conversion.To_Arity.ar2
val true_ : boolean Conversion.To_Arity.ar0
val false_ : boolean Conversion.To_Arity.ar0