Index - I
| I386 | Foundation.System.Info |
| id | Foundation |
| IDivisible | Foundation.Numerical, Foundation |
| imap | Foundation.Collection |
| IndexedCollection | Foundation.Collection |
| init | Foundation.Collection |
| InnerFunctor | Foundation.Collection |
| Int | Foundation |
| Int16 | Foundation |
| Int32 | Foundation |
| Int64 | Foundation |
| Int8 | Foundation |
| Integer | Foundation |
| Integral | Foundation |
| IntegralRounding | Foundation.Numerical |
| intercalate | Foundation.Collection |
| intersperse | Foundation.Collection |
| InvalidContinuation | Foundation.String |
| InvalidHeader | Foundation.String |
| IO | Foundation |
| IOException | Foundation |
| IOMode | Foundation.IO |
| IsIntegral | Foundation.Numerical, Foundation |
| isJust | Foundation |
| IsList | Foundation |
| IsNatural | Foundation.Numerical, Foundation |
| isNothing | Foundation |
| ISO_8859_1 | Foundation.String |
| isPrefixOf | Foundation.Collection |
| IsString | Foundation |
| isSuffixOf | Foundation.Collection |
| Item | Foundation |