Index - R
| Random | Hydrogen.Prelude.System | 
| random | Hydrogen.Prelude.System | 
| RandomGen | Hydrogen.Prelude.System | 
| randomIO | Hydrogen.Prelude.System | 
| randomR | Hydrogen.Prelude.System | 
| randomRIO | Hydrogen.Prelude.System | 
| randomRs | Hydrogen.Prelude.System | 
| randoms | Hydrogen.Prelude.System | 
| randomUUID | Hydrogen.Prelude.Extra | 
| range | Hydrogen.Prelude, Hydrogen.Prelude.IO, Hydrogen.Prelude.System | 
| rangeSize | Hydrogen.Prelude, Hydrogen.Prelude.IO, Hydrogen.Prelude.System | 
| Ratio | Hydrogen.Prelude, Hydrogen.Prelude.IO, Hydrogen.Prelude.System | 
| Rational | Hydrogen.Prelude, Hydrogen.Prelude.IO, Hydrogen.Prelude.System | 
| RatioZeroDenominator | Hydrogen.Prelude.IO, Hydrogen.Prelude.System | 
| RawCommand | Hydrogen.Prelude.System | 
| rawSystem | Hydrogen.Prelude.System | 
| Read | Hydrogen.Prelude, Hydrogen.Prelude.IO, Hydrogen.Prelude.System | 
| read | Hydrogen.Prelude, Hydrogen.Prelude.IO, Hydrogen.Prelude.System | 
| readable | Hydrogen.Prelude.System | 
| readChan | Hydrogen.Prelude.IO, Hydrogen.Prelude.System | 
| readDec | Hydrogen.Prelude, Hydrogen.Prelude.IO, Hydrogen.Prelude.System | 
| readFile | Hydrogen.Prelude, Hydrogen.Prelude.IO, Hydrogen.Prelude.System | 
| readFloat | Hydrogen.Prelude, Hydrogen.Prelude.IO, Hydrogen.Prelude.System | 
| readHex | Hydrogen.Prelude, Hydrogen.Prelude.IO, Hydrogen.Prelude.System | 
| readInt | Hydrogen.Prelude, Hydrogen.Prelude.IO, Hydrogen.Prelude.System | 
| readIO | Hydrogen.Prelude, Hydrogen.Prelude.IO, Hydrogen.Prelude.System | 
| readIORef | Hydrogen.Prelude.IO, Hydrogen.Prelude.System | 
| readList | Hydrogen.Prelude, Hydrogen.Prelude.IO, Hydrogen.Prelude.System | 
| readLitChar | Hydrogen.Prelude, Hydrogen.Prelude.IO, Hydrogen.Prelude.System | 
| readLn | Hydrogen.Prelude, Hydrogen.Prelude.IO, Hydrogen.Prelude.System | 
| ReadMode | Hydrogen.Prelude.IO, Hydrogen.Prelude.System | 
| readMVar | Hydrogen.Prelude.IO, Hydrogen.Prelude.System | 
| readOct | Hydrogen.Prelude, Hydrogen.Prelude.IO, Hydrogen.Prelude.System | 
| readParen | Hydrogen.Prelude, Hydrogen.Prelude.IO, Hydrogen.Prelude.System | 
| readProcess | Hydrogen.Prelude.System | 
| readProcessWithExitCode | Hydrogen.Prelude.System | 
| ReadS | Hydrogen.Prelude, Hydrogen.Prelude.IO, Hydrogen.Prelude.System | 
| reads | Hydrogen.Prelude, Hydrogen.Prelude.IO, Hydrogen.Prelude.System | 
| readSigned | Hydrogen.Prelude, Hydrogen.Prelude.IO, Hydrogen.Prelude.System | 
| readsPrec | Hydrogen.Prelude, Hydrogen.Prelude.IO, Hydrogen.Prelude.System | 
| readsTime | Hydrogen.Prelude, Hydrogen.Prelude.IO, Hydrogen.Prelude.System | 
| readTime | Hydrogen.Prelude, Hydrogen.Prelude.IO, Hydrogen.Prelude.System | 
| ReadWriteMode | Hydrogen.Prelude.IO, Hydrogen.Prelude.System | 
| Real | Hydrogen.Prelude, Hydrogen.Prelude.IO, Hydrogen.Prelude.System | 
| RealFloat | Hydrogen.Prelude, Hydrogen.Prelude.IO, Hydrogen.Prelude.System | 
| RealFrac | Hydrogen.Prelude, Hydrogen.Prelude.IO, Hydrogen.Prelude.System | 
| realPart | Hydrogen.Prelude, Hydrogen.Prelude.IO, Hydrogen.Prelude.System | 
| realToFrac | Hydrogen.Prelude, Hydrogen.Prelude.IO, Hydrogen.Prelude.System | 
| RecConError | |
| 1 (Data Constructor) | Hydrogen.Prelude.IO, Hydrogen.Prelude.System | 
| 2 (Type/Class) | Hydrogen.Prelude.IO, Hydrogen.Prelude.System | 
| recip | Hydrogen.Prelude, Hydrogen.Prelude.IO, Hydrogen.Prelude.System | 
| RecSelError | |
| 1 (Data Constructor) | Hydrogen.Prelude.IO, Hydrogen.Prelude.System | 
| 2 (Type/Class) | Hydrogen.Prelude.IO, Hydrogen.Prelude.System | 
| RecUpdError | |
| 1 (Data Constructor) | Hydrogen.Prelude.IO, Hydrogen.Prelude.System | 
| 2 (Type/Class) | Hydrogen.Prelude.IO, Hydrogen.Prelude.System | 
| RelativeSeek | Hydrogen.Prelude.IO, Hydrogen.Prelude.System | 
| rem | Hydrogen.Prelude, Hydrogen.Prelude.IO, Hydrogen.Prelude.System | 
| removeDirectory | Hydrogen.Prelude.System | 
| removeDirectoryRecursive | Hydrogen.Prelude.System | 
| removeFile | Hydrogen.Prelude.System | 
| renameDirectory | Hydrogen.Prelude.System | 
| renameFile | Hydrogen.Prelude.System | 
| repeat | Hydrogen.Prelude, Hydrogen.Prelude.IO, Hydrogen.Prelude.System | 
| replaceBaseName | Hydrogen.Prelude.System | 
| replaceDirectory | Hydrogen.Prelude.System | 
| replaceExtension | Hydrogen.Prelude.System | 
| replaceFileName | Hydrogen.Prelude.System | 
| replicate | Hydrogen.Prelude, Hydrogen.Prelude.IO, Hydrogen.Prelude.System | 
| replicateM | Hydrogen.Prelude, Hydrogen.Prelude.IO, Hydrogen.Prelude.System | 
| replicateM_ | Hydrogen.Prelude, Hydrogen.Prelude.IO, Hydrogen.Prelude.System | 
| resolution | Hydrogen.Prelude, Hydrogen.Prelude.IO, Hydrogen.Prelude.System | 
| return | Hydrogen.Prelude, Hydrogen.Prelude.IO, Hydrogen.Prelude.System | 
| returnA | Hydrogen.Prelude, Hydrogen.Prelude.IO, Hydrogen.Prelude.System | 
| Reverse | |
| 1 (Data Constructor) | Hydrogen.Prelude, Hydrogen.Prelude.IO, Hydrogen.Prelude.System | 
| 2 (Type/Class) | Hydrogen.Prelude, Hydrogen.Prelude.IO, Hydrogen.Prelude.System | 
| reverse | Hydrogen.Prelude, Hydrogen.Prelude.IO, Hydrogen.Prelude.System | 
| Right | Hydrogen.Prelude, Hydrogen.Prelude.IO, Hydrogen.Prelude.System | 
| right | Hydrogen.Prelude, Hydrogen.Prelude.IO, Hydrogen.Prelude.System | 
| rights | Hydrogen.Prelude, Hydrogen.Prelude.IO, Hydrogen.Prelude.System | 
| rotate | Hydrogen.Prelude, Hydrogen.Prelude.IO, Hydrogen.Prelude.System | 
| rotateL | Hydrogen.Prelude, Hydrogen.Prelude.IO, Hydrogen.Prelude.System | 
| rotateR | Hydrogen.Prelude, Hydrogen.Prelude.IO, Hydrogen.Prelude.System | 
| round | Hydrogen.Prelude, Hydrogen.Prelude.IO, Hydrogen.Prelude.System | 
| rtsSupportsBoundThreads | Hydrogen.Prelude.IO, Hydrogen.Prelude.System | 
| runCommand | Hydrogen.Prelude.System | 
| runIdentity | Hydrogen.Prelude, Hydrogen.Prelude.IO, Hydrogen.Prelude.System | 
| runInBoundThread | Hydrogen.Prelude.IO, Hydrogen.Prelude.System | 
| runInteractiveCommand | Hydrogen.Prelude.System | 
| runInteractiveProcess | Hydrogen.Prelude.System | 
| runInUnboundThread | Hydrogen.Prelude.IO, Hydrogen.Prelude.System | 
| runKleisli | Hydrogen.Prelude, Hydrogen.Prelude.IO, Hydrogen.Prelude.System | 
| runProcess | Hydrogen.Prelude.System |