Index - U
| uncons | Data.List.Plus | 
| unfoldr | Data.List.Plus | 
| ungroupMay | Data.List.Plus | 
| union | Data.List.Plus | 
| unionBy | Data.List.Plus | 
| unlines | Data.List.Plus | 
| unwords | Data.List.Plus | 
| unwrapArrow | Control.Applicative.Plus | 
| unwrapMonad | Control.Applicative.Plus | 
| unzip | Data.List.Plus | 
| unzip3 | Data.List.Plus | 
| unzip4 | Data.List.Plus | 
| unzip5 | Data.List.Plus | 
| unzip6 | Data.List.Plus | 
| unzip7 | Data.List.Plus |