Index - O
| oall | Preliminaries |
| oand | Preliminaries |
| oany | Preliminaries |
| ocompareLength | Preliminaries |
| oconcat | Preliminaries |
| oconcatMap | Preliminaries |
| odd | Preliminaries |
| oelem | Preliminaries |
| oextend | Preliminaries |
| oextract | Preliminaries |
| ofold | Preliminaries |
| ofold1 | Preliminaries |
| ofoldl' | Preliminaries |
| ofoldl1' | Preliminaries |
| ofoldl1Ex' | Preliminaries |
| ofoldlM | Preliminaries |
| ofoldlUnwrap | Preliminaries |
| ofoldM | Preliminaries |
| ofoldMap | Preliminaries |
| ofoldMap1 | Preliminaries |
| ofoldMap1Ex | Preliminaries |
| ofoldMUnwrap | Preliminaries |
| ofoldr | Preliminaries |
| ofoldr1 | Preliminaries |
| ofoldr1Ex | Preliminaries |
| ofor | Preliminaries |
| oforM | Preliminaries |
| oforM_ | Preliminaries |
| ofor_ | Preliminaries |
| ointercalate | Preliminaries |
| olength | Preliminaries |
| olength64 | Preliminaries |
| omap | Preliminaries |
| omapCE | Preliminaries |
| omapKeysWith | Preliminaries |
| omapM | Preliminaries |
| omapMCE | Preliminaries |
| omapM_ | Preliminaries |
| on | Preliminaries |
| onException | Preliminaries |
| onotElem | Preliminaries |
| onull | Preliminaries |
| oor | Preliminaries |
| opoint | Preliminaries |
| oproduct | Preliminaries |
| optional | Preliminaries |
| or | Preliminaries |
| orC | Preliminaries |
| orCE | Preliminaries |
| Ord | Preliminaries |
| Ordering | Preliminaries |
| ordNub | Preliminaries |
| ordNubBy | Preliminaries |
| orElseSTM | Preliminaries |
| osequence_ | Preliminaries |
| osum | Preliminaries |
| otherwise | Preliminaries |
| otoList | Preliminaries |
| otraverse | Preliminaries |
| otraverse_ | Preliminaries |
| ounzip | Preliminaries |
| over | Preliminaries |
| ozip | Preliminaries |
| ozipWith | Preliminaries |