Index - N
| Nat | Base, Universum |
| natVal | Base, Universum |
| negate | Base, Universum |
| newEmptyMVar | Lifted.Concurrent, Lifted, Universum |
| newIORef | Lifted.IORef, Lifted, Universum |
| newMVar | Lifted.Concurrent, Lifted, Universum |
| newTVar | Lifted.Concurrent, Lifted, Universum |
| newTVarIO | Lifted.Concurrent, Lifted, Universum |
| NFData | Universum |
| NonEmpty | Universum |
| nonEmpty | Universum |
| NontrivialContainer | Container.Class, Container, Universum |
| not | Universum |
| notANumber | Base, Universum |
| note | Exceptions, Universum |
| notElem | Container.Class, Container, Universum |
| Nothing | Monad.Maybe, Monad, Universum |
| null | Container.Class, Container, Universum |
| Num | Base, Universum |
| numerator | Base, Universum |
| numericEnumFrom | Base, Universum |
| numericEnumFromThen | Base, Universum |
| numericEnumFromThenTo | Base, Universum |
| numericEnumFromTo | Base, Universum |