Index - I
| Init | Fcf.Data.Text |
| Inord | Fcf.Alg.Sort |
| Insert | |
| 1 (Type/Class) | Fcf.Data.MapC |
| 2 (Type/Class) | Fcf.Data.NatMap |
| 3 (Type/Class) | Fcf.Data.Set |
| InsertWith | |
| 1 (Type/Class) | Fcf.Data.MapC |
| 2 (Type/Class) | Fcf.Data.NatMap |
| Intercalate | |
| 1 (Type/Class) | Fcf.Alg.List |
| 2 (Type/Class) | Fcf.Data.Symbol |
| 3 (Type/Class) | Fcf.Data.Text |
| Intersection | |
| 1 (Type/Class) | Fcf.Data.MapC |
| 2 (Type/Class) | Fcf.Data.NatMap |
| 3 (Type/Class) | Fcf.Data.Set |
| Intersperse | |
| 1 (Type/Class) | Fcf.Alg.List |
| 2 (Type/Class) | Fcf.Data.Text |
| IsDigit | Fcf.Data.Symbol |
| IsInfixOf | |
| 1 (Type/Class) | Fcf.Alg.List |
| 2 (Type/Class) | Fcf.Data.Text |
| IsNewLine | Fcf.Data.Symbol |
| IsPrefixOf | |
| 1 (Type/Class) | Fcf.Alg.List |
| 2 (Type/Class) | Fcf.Data.Text |
| IsPrefixOf_ | Fcf.Alg.List |
| IsProperSubsetOf | Fcf.Data.Set |
| IsSpace | Fcf.Data.Symbol |
| IsSpaceDelim | Fcf.Data.Symbol |
| IsSubsetOf | Fcf.Data.Set |
| IsSuffixOf | |
| 1 (Type/Class) | Fcf.Alg.List |
| 2 (Type/Class) | Fcf.Data.Text |
| IsTab | Fcf.Data.Symbol |