Index - I
| Id | GF.Grammar.Canonical |
| Ident | GF |
| ident2label | GF |
| ident2raw | GF |
| ident2terminal | GF |
| ident2utf8 | GF |
| identA | GF |
| identAV | GF |
| identC | GF |
| identS | GF |
| identV | GF |
| identW | GF |
| ImplArg | GF |
| Implicit | GF |
| indent | GF.Support |
| inferExpr | PGF |
| Info | GF |
| inheritAll | GF |
| InitPath | GF.Support |
| initState | PGF |
| Int | GF.Grammar.Canonical |
| int2term | GF |
| IntConstant | GF.Grammar.Canonical |
| Internal | GF |
| IntType | GF.Grammar.Canonical |
| IOE | GF.Support |
| ioErrorText | GF.Support |
| isArgIdent | GF |
| isCompilableModule | GF |
| isCompleteModule | GF |
| isEmpty | GF.Text.Pretty |
| isGF | GF.Support |
| isGFO | GF.Support |
| isHigherOrderType | GF |
| isInherited | GF |
| isInMorpho | PGF |
| isLexicalCat | GF.Support |
| isLiteralCat | GF.Support |
| isModAbs | GF |
| isModCnc | GF |
| isModRes | GF |
| isPredefConstant | GF |
| isPrefixOf | GF |
| isRecursiveType | GF |
| isTypeInts | GF |
| isVariable | GF |
| isWildIdent | GF |
| iterFix | GF.Support |