Index - I
| id | Symantic.Class, Symantic |
| IfThenElse | Symantic.Data, Symantic |
| ifThenElse | Symantic.Class, Symantic |
| IfThenElseable | Symantic.Class, Symantic |
| infer | Symantic.Class, Symantic |
| Inferable | Symantic.Class, Symantic |
| Infix | |
| 1 (Type/Class) | Symantic.Fixity |
| 2 (Data Constructor) | Symantic.Fixity |
| infixB | Symantic.Fixity |
| infixL | Symantic.Fixity |
| infixN | Symantic.Fixity |
| infixN0 | Symantic.Fixity |
| infixN5 | Symantic.Fixity |
| infixR | Symantic.Fixity |
| infix_associativity | Symantic.Fixity |
| infix_precedence | Symantic.Fixity |
| int | Symantic.Class, Symantic |
| Iso | |
| 1 (Type/Class) | Symantic.Class, Symantic |
| 2 (Data Constructor) | Symantic.Class, Symantic |
| IsoFunctor | Symantic.Class, Symantic |
| isPairNeeded | Symantic.Fixity |