Index - R
| Ratio | H.Prelude.Num, H.Prelude |
| Rational | H.Prelude.Num, H.Prelude |
| rational | H.Pretty |
| rbrace | H.Pretty |
| rbrack | H.Pretty |
| RChan | H.Chan |
| Read | H.Prelude.Text, H.Prelude |
| read | H.Prelude.Text, H.Prelude |
| ReadChan | H.Chan |
| readChan | H.Chan |
| Reader | H.Prelude.Monads, H.Prelude |
| reader | H.Prelude.Monads, H.Prelude |
| ReaderT | |
| 1 (Type/Class) | H.Prelude.Monads, H.Prelude |
| 2 (Data Constructor) | H.Prelude.Monads, H.Prelude |
| readLitChar | H.Prelude.Text, H.Prelude |
| Real | H.Prelude.Num, H.Prelude |
| RealFrac | H.Prelude.Num, H.Prelude |
| recip | H.Prelude.Num, H.Prelude |
| rem | H.Prelude.Num, H.Prelude |
| render | H.Pretty |
| renderStyle | H.Pretty |
| replicateM | H.Prelude.Monad, H.Prelude.Monads, H.Prelude |
| replicateM_ | H.Prelude.Monad, H.Prelude.Monads, H.Prelude |
| return | H.Prelude.Monad, H.Prelude.Monads, H.Prelude |
| ribbonsPerLine | H.Pretty |
| Right | H.Prelude.Core, H.Prelude |
| rights | H.Prelude.Core, H.Prelude |
| round | H.Prelude.Num, H.Prelude |
| rparen | H.Pretty |
| runExcept | H.Prelude.Monads, H.Prelude |
| runExceptT | H.Prelude.Monads, H.Prelude |
| runIdentity | H.Prelude.Monads, H.Prelude |
| runIdentityT | H.Prelude.Monads, H.Prelude |
| runReader | H.Prelude.Monads, H.Prelude |
| runReaderT | H.Prelude.Monads, H.Prelude |
| runState | H.Prelude.Monads, H.Prelude |
| runStateT | H.Prelude.Monads, H.Prelude |
| RWChan | H.Chan |