Index - U
| Unbox | CustomPrelude |
| uncurry | CustomPrelude |
| undefined | CustomPrelude |
| unfoldr | CustomPrelude |
| union | CustomPrelude |
| unionBy | CustomPrelude |
| unless | CustomPrelude |
| unlines | CustomPrelude |
| until | CustomPrelude |
| unwords | CustomPrelude |
| unzip | CustomPrelude |
| unzip3 | CustomPrelude |
| unzip4 | CustomPrelude |
| unzip5 | CustomPrelude |
| unzip6 | CustomPrelude |
| unzip7 | CustomPrelude |
| userError | CustomPrelude |
| UVector | CustomPrelude |