Index - I
| id | Hydrogen.Prelude, Hydrogen.Prelude.IO, Hydrogen.Prelude.System | 
| Identity | |
| 1 (Type/Class) | Hydrogen.Prelude, Hydrogen.Prelude.IO, Hydrogen.Prelude.System | 
| 2 (Data Constructor) | Hydrogen.Prelude, Hydrogen.Prelude.IO, Hydrogen.Prelude.System | 
| imagPart | Hydrogen.Prelude, Hydrogen.Prelude.IO, Hydrogen.Prelude.System | 
| index | Hydrogen.Prelude, Hydrogen.Prelude.IO, Hydrogen.Prelude.System | 
| IndexOutOfBounds | Hydrogen.Prelude.IO, Hydrogen.Prelude.System | 
| indices | Hydrogen.Prelude, Hydrogen.Prelude.IO, Hydrogen.Prelude.System | 
| Inherit | Hydrogen.Prelude.System | 
| init | Hydrogen.Prelude, Hydrogen.Prelude.IO, Hydrogen.Prelude.System | 
| InitialQuote | Hydrogen.Prelude, Hydrogen.Prelude.IO, Hydrogen.Prelude.System | 
| inits | Hydrogen.Prelude, Hydrogen.Prelude.IO, Hydrogen.Prelude.System | 
| inputNL | Hydrogen.Prelude.IO, Hydrogen.Prelude.System | 
| inRange | Hydrogen.Prelude, Hydrogen.Prelude.IO, Hydrogen.Prelude.System | 
| insert | Hydrogen.Prelude, Hydrogen.Prelude.IO, Hydrogen.Prelude.System | 
| insertBy | Hydrogen.Prelude, Hydrogen.Prelude.IO, Hydrogen.Prelude.System | 
| Int | Hydrogen.Prelude, Hydrogen.Prelude.IO, Hydrogen.Prelude.System | 
| Int16 | Hydrogen.Prelude, Hydrogen.Prelude.IO, Hydrogen.Prelude.System | 
| Int32 | Hydrogen.Prelude, Hydrogen.Prelude.IO, Hydrogen.Prelude.System | 
| Int64 | Hydrogen.Prelude, Hydrogen.Prelude.IO, Hydrogen.Prelude.System | 
| Int8 | Hydrogen.Prelude, Hydrogen.Prelude.IO, Hydrogen.Prelude.System | 
| Integer | Hydrogen.Prelude, Hydrogen.Prelude.IO, Hydrogen.Prelude.System | 
| Integral | Hydrogen.Prelude, Hydrogen.Prelude.IO, Hydrogen.Prelude.System | 
| interact | Hydrogen.Prelude, Hydrogen.Prelude.IO, Hydrogen.Prelude.System | 
| intercalate | Hydrogen.Prelude, Hydrogen.Prelude.IO, Hydrogen.Prelude.System | 
| interruptProcessGroupOf | Hydrogen.Prelude.System | 
| intersect | Hydrogen.Prelude, Hydrogen.Prelude.IO, Hydrogen.Prelude.System | 
| intersectBy | Hydrogen.Prelude, Hydrogen.Prelude.IO, Hydrogen.Prelude.System | 
| intersperse | Hydrogen.Prelude, Hydrogen.Prelude.IO, Hydrogen.Prelude.System | 
| intToDigit | Hydrogen.Prelude, Hydrogen.Prelude.IO, Hydrogen.Prelude.System | 
| IO | Hydrogen.Prelude, Hydrogen.Prelude.IO, Hydrogen.Prelude.System | 
| IOError | Hydrogen.Prelude, Hydrogen.Prelude.IO, Hydrogen.Prelude.System | 
| ioError | Hydrogen.Prelude, Hydrogen.Prelude.IO, Hydrogen.Prelude.System | 
| IOException | Hydrogen.Prelude.IO, Hydrogen.Prelude.System | 
| IOMode | Hydrogen.Prelude.IO, Hydrogen.Prelude.System | 
| IORef | Hydrogen.Prelude.IO, Hydrogen.Prelude.System | 
| isAbsolute | Hydrogen.Prelude.System | 
| isAlpha | Hydrogen.Prelude, Hydrogen.Prelude.IO, Hydrogen.Prelude.System | 
| isAlphaNum | Hydrogen.Prelude, Hydrogen.Prelude.IO, Hydrogen.Prelude.System | 
| isAscii | Hydrogen.Prelude, Hydrogen.Prelude.IO, Hydrogen.Prelude.System | 
| isAsciiLower | Hydrogen.Prelude, Hydrogen.Prelude.IO, Hydrogen.Prelude.System | 
| isAsciiUpper | Hydrogen.Prelude, Hydrogen.Prelude.IO, Hydrogen.Prelude.System | 
| IsChar | Hydrogen.Prelude, Hydrogen.Prelude.IO, Hydrogen.Prelude.System | 
| isControl | Hydrogen.Prelude, Hydrogen.Prelude.IO, Hydrogen.Prelude.System | 
| isCurrentThreadBound | Hydrogen.Prelude.IO, Hydrogen.Prelude.System | 
| isDenormalized | Hydrogen.Prelude, Hydrogen.Prelude.IO, Hydrogen.Prelude.System | 
| isDigit | Hydrogen.Prelude, Hydrogen.Prelude.IO, Hydrogen.Prelude.System | 
| isDrive | Hydrogen.Prelude.System | 
| isEmptyChan | Hydrogen.Prelude.IO, Hydrogen.Prelude.System | 
| isEmptyMVar | Hydrogen.Prelude.IO, Hydrogen.Prelude.System | 
| isEOF | Hydrogen.Prelude.IO, Hydrogen.Prelude.System | 
| isExtSeparator | Hydrogen.Prelude.System | 
| isHexDigit | Hydrogen.Prelude, Hydrogen.Prelude.IO, Hydrogen.Prelude.System | 
| isIEEE | Hydrogen.Prelude, Hydrogen.Prelude.IO, Hydrogen.Prelude.System | 
| isInfinite | Hydrogen.Prelude, Hydrogen.Prelude.IO, Hydrogen.Prelude.System | 
| isInfixOf | Hydrogen.Prelude, Hydrogen.Prelude.IO, Hydrogen.Prelude.System | 
| isJust | Hydrogen.Prelude, Hydrogen.Prelude.IO, Hydrogen.Prelude.System | 
| isLatin1 | Hydrogen.Prelude, Hydrogen.Prelude.IO, Hydrogen.Prelude.System | 
| isLeapYear | Hydrogen.Prelude, Hydrogen.Prelude.IO, Hydrogen.Prelude.System | 
| isLeft | Hydrogen.Prelude, Hydrogen.Prelude.IO, Hydrogen.Prelude.System | 
| isLetter | Hydrogen.Prelude, Hydrogen.Prelude.IO, Hydrogen.Prelude.System | 
| isLower | Hydrogen.Prelude, Hydrogen.Prelude.IO, Hydrogen.Prelude.System | 
| isMark | Hydrogen.Prelude, Hydrogen.Prelude.IO, Hydrogen.Prelude.System | 
| isNaN | Hydrogen.Prelude, Hydrogen.Prelude.IO, Hydrogen.Prelude.System | 
| isNegativeZero | Hydrogen.Prelude, Hydrogen.Prelude.IO, Hydrogen.Prelude.System | 
| isNothing | Hydrogen.Prelude, Hydrogen.Prelude.IO, Hydrogen.Prelude.System | 
| isNumber | Hydrogen.Prelude, Hydrogen.Prelude.IO, Hydrogen.Prelude.System | 
| isOctDigit | Hydrogen.Prelude, Hydrogen.Prelude.IO, Hydrogen.Prelude.System | 
| isPathSeparator | Hydrogen.Prelude.System | 
| isPrefixOf | Hydrogen.Prelude, Hydrogen.Prelude.IO, Hydrogen.Prelude.System | 
| isPrint | Hydrogen.Prelude, Hydrogen.Prelude.IO, Hydrogen.Prelude.System | 
| isPunctuation | Hydrogen.Prelude, Hydrogen.Prelude.IO, Hydrogen.Prelude.System | 
| isRelative | Hydrogen.Prelude.System | 
| isRight | Hydrogen.Prelude, Hydrogen.Prelude.IO, Hydrogen.Prelude.System | 
| isSearchPathSeparator | Hydrogen.Prelude.System | 
| isSeparator | Hydrogen.Prelude, Hydrogen.Prelude.IO, Hydrogen.Prelude.System | 
| isSigned | Hydrogen.Prelude, Hydrogen.Prelude.IO, Hydrogen.Prelude.System | 
| isSpace | Hydrogen.Prelude, Hydrogen.Prelude.IO, Hydrogen.Prelude.System | 
| IsString | Hydrogen.Prelude, Hydrogen.Prelude.IO, Hydrogen.Prelude.System | 
| isSuffixOf | Hydrogen.Prelude, Hydrogen.Prelude.IO, Hydrogen.Prelude.System | 
| isSymbol | Hydrogen.Prelude, Hydrogen.Prelude.IO, Hydrogen.Prelude.System | 
| isUpper | Hydrogen.Prelude, Hydrogen.Prelude.IO, Hydrogen.Prelude.System | 
| isValid | Hydrogen.Prelude.System | 
| iterate | Hydrogen.Prelude, Hydrogen.Prelude.IO, Hydrogen.Prelude.System | 
| Ix | Hydrogen.Prelude, Hydrogen.Prelude.IO, Hydrogen.Prelude.System | 
| ixmap | Hydrogen.Prelude, Hydrogen.Prelude.IO, Hydrogen.Prelude.System |