in scala
class Boolean

`sealed abstract class` Boolean
  `extends` scala.AnyVal

  Class `Boolean` has only two values: `true` and `false`.

Def Summary
| `def` ! : scala.Boolean
| `def` == (scala.Boolean): scala.Boolean
| `def` != (scala.Boolean): scala.Boolean
| `def` || (scala.Boolean): scala.Boolean
| `def` && (scala.Boolean): scala.Boolean
| `def` | (scala.Boolean): scala.Boolean
| `def` & (scala.Boolean): scala.Boolean
| `def` ^ (scala.Boolean): scala.Boolean