Index - I
| id | Data.Invertible.Function, Data.Invertible.Prelude, Data.Invertible |
| identity | Data.Invertible.Functor, Data.Invertible |
| index | Data.Invertible.List, Data.Invertible |
| interleave | Data.Invertible.List, Data.Invertible |
| invert | Control.Invertible.BiArrow, Data.Invertible |
| invmap | Data.Invertible.Invariant |
| involve | Control.Invertible.BiArrow, Data.Invertible |
| isJust | Data.Invertible.Maybe, Data.Invertible |
| isLeft | Data.Invertible.Either, Data.Invertible |
| isNothing | Data.Invertible.Maybe, Data.Invertible |
| isRight | Data.Invertible.Either, Data.Invertible |