Index - U
| unAbs | PGF |
| unApp | PGF |
| unapply | PGF |
| unDouble | PGF |
| UnexpectedImplArg | PGF |
| unFloat | PGF |
| unifyMaybe | GF.Support |
| unifyMaybeBy | GF.Support |
| unInt | PGF |
| UnknownCat | PGF |
| UnknownFun | PGF |
| unLoc | GF.Support, GF |
| unMeta | PGF |
| Unqual | GF.Grammar.Canonical |
| Unqualified | GF |
| UnresolvedMetaVars | PGF |
| UnsolvableGoal | PGF |
| unStr | PGF |
| unType | PGF |
| unV | GF |
| unzipR | GF |
| useIOE | GF.Support |
| useTheSource | GF |
| utf8CId | PGF |
| uType | GF |