Index - I
| id | Protolude |
| Identity | |
| 1 (Data Constructor) | Protolude |
| 2 (Type/Class) | Protolude |
| identity | Protolude |
| imagPart | Protolude |
| IndexOutOfBounds | Protolude |
| infinity | Protolude |
| initMay | Protolude |
| Int | Protolude |
| Int16 | Protolude |
| int2Double | Protolude |
| int2Float | Protolude |
| Int32 | Protolude |
| Int64 | Protolude |
| Int8 | Protolude |
| Integer | Protolude |
| integerLogBase | Protolude |
| integerToInt | Protolude |
| integerToWord | Protolude |
| Integral | Protolude |
| integralEnumFrom | Protolude |
| integralEnumFromThen | Protolude |
| integralEnumFromThenTo | Protolude |
| integralEnumFromTo | Protolude |
| intercalate | Protolude |
| IntMap | Protolude |
| IntSet | Protolude |
| intToDigit | Protolude |
| IO | Protolude |
| ioError | Protolude |
| IOException | Protolude |
| isCurrentThreadBound | Protolude |
| isDenormalized | Protolude |
| isDoubleDenormalized | Protolude |
| isDoubleFinite | Protolude |
| isDoubleInfinite | Protolude |
| isDoubleNaN | Protolude |
| isDoubleNegativeZero | Protolude |
| isEmptyChan | Protolude |
| isEmptyMVar | Protolude |
| isFloatDenormalized | Protolude |
| isFloatFinite | Protolude |
| isFloatInfinite | Protolude |
| isFloatNaN | Protolude |
| isFloatNegativeZero | Protolude |
| isIEEE | Protolude |
| isInfinite | Protolude |
| isJust | Protolude |
| isLeft | Protolude |
| isNaN | Protolude |
| isNegativeZero | Protolude |
| isNothing | Protolude |
| isPrefixOf | Protolude |
| isRight | Protolude |
| isSigned | Protolude |