Index - I
| id | Universum.Function, Universum |
| Identity | |
| 1 (Data Constructor) | Universum.Functor.Reexport, Universum.Functor, Universum |
| 2 (Type/Class) | Universum.Functor.Reexport, Universum.Functor, Universum |
| identity | Universum.Function, Universum |
| IdentityT | Universum.Monad.Reexport, Universum.Monad, Universum |
| ifM | Universum.Bool.Guard, Universum.Bool, Universum |
| infinity | Universum.Base, Universum |
| init | |
| 1 (Function) | Universum.List.Reexport, Universum.List, Universum |
| 2 (Function) | Universum.Unsafe |
| inits | Universum.List.Reexport, Universum.List, Universum |
| Int | Universum.Base, Universum |
| Int16 | Universum.Base, Universum |
| Int32 | Universum.Base, Universum |
| Int64 | Universum.Base, Universum |
| Int8 | Universum.Base, Universum |
| Integer | Universum.Base, Universum |
| Integral | Universum.Base, Universum |
| integralEnumFrom | Universum.Base, Universum |
| integralEnumFromThen | Universum.Base, Universum |
| integralEnumFromThenTo | Universum.Base, Universum |
| integralEnumFromTo | Universum.Base, Universum |
| interact | Universum.Lifted.File, Universum.Lifted, Universum |
| intercalate | Universum.List.Reexport, Universum.List, Universum |
| intersperse | Universum.List.Reexport, Universum.List, Universum |
| IntMap | Universum.Container.Reexport, Universum.Container, Universum |
| IntSet | Universum.Container.Reexport, Universum.Container, Universum |
| IO | Universum.Base, Universum |
| IOMode | Universum.Base, Universum |
| IORef | Universum.Lifted.IORef, Universum.Lifted, Universum |
| isJust | Universum.Monad.Reexport, Universum.Monad, Universum |
| IsLabel | Universum.Base, Universum |
| isLeft | Universum.Monad.Reexport, Universum.Monad, Universum |
| isNothing | Universum.Monad.Reexport, Universum.Monad, Universum |
| isPrefixOf | Universum.List.Reexport, Universum.List, Universum |
| isRight | Universum.Monad.Reexport, Universum.Monad, Universum |
| IsString | Universum.String.Reexport, Universum.String, Universum |
| iterate | Universum.List.Reexport, Universum.List, Universum |