Index - O
| odd | Cgm.Prelude |
| on | Cgm.Prelude |
| onAllocation | Cgm.Data.Array |
| onException | Cgm.Prelude |
| onList | Cgm.Data.List |
| onNat | Cgm.Data.Nat.Base, Cgm.Data.Nat, Cgm.Data.WordN |
| onNEList | Cgm.Data.NEList |
| onSortedPair | Cgm.Data.SortedPair |
| onWordConv | Cgm.Data.Word |
| onWordConvB | Cgm.Data.Word |
| onØ | Cgm.Data.Empty |
| optional | Cgm.Prelude |
| or | Cgm.Prelude |
| Ord | Cgm.Prelude |
| Ordering | Cgm.Prelude |
| otherwise | Cgm.Prelude |
| Overflow | Cgm.Prelude |