Index - R
| Ratio | Papa.Base |
| Rational | Papa.Base |
| readFile | Papa.Base |
| readIO | Papa.Base |
| Real | Papa.Base |
| RealFloat | Papa.Base |
| realToFrac | Papa.Base |
| recip | Papa.Base |
| rem | Papa.Base |
| repeat | Papa.Base |
| replicate | Papa.Base |
| replicateA | Papa.Base |
| replicateA_ | Papa.Base |
| replicateM | Papa.Base |
| replicateM_ | Papa.Base |
| return | Papa.Base |
| reverse | Papa.Base |
| Right | Papa.Base |
| round | Papa.Base |