Index - R
| Ratio | Data.Ratio |
| Rational | Data.Ratio |
| Read | Prelude |
| recip | Prelude |
| Ref | Data.Var |
| rem | Prelude |
| rem' | Prelude |
| removeLocalStorage | Data.LocalStorage |
| repeat | Prelude |
| replicate | Prelude |
| return | Prelude |
| reverse | |
| 1 (Function) | Prelude |
| 2 (Function) | Data.Text |
| Right | Prelude |
| round | Prelude |