Index - N
| N | UtilP, Predicate |
| nat | UtilP, Predicate |
| Ne | Predicate |
| Negate | Predicate |
| Negative | Predicate |
| NEmptyT | UtilP, Predicate |
| Newline_cr | UtilP, Predicate |
| Newline_crlf | UtilP, Predicate |
| Newline_lf | UtilP, Predicate |
| newRefined | Refined |
| newRefined3T | Refined3 |
| newRefined3TP | Refined3 |
| newRefined3TPIO | Refined3 |
| newRefinedT | Refined |
| newRefinedTIO | Refined |
| NormalDisp | UtilP, Predicate |
| Not | Predicate |
| Nothing' | Predicate |
| NotT | UtilP, Predicate |
| NotZeroT | UtilP, Predicate |
| No_auto_capture | UtilP, Predicate |
| No_utf8_check | UtilP, Predicate |
| Null | Predicate |
| nullSpace | UtilP, Predicate |
| NullT | UtilP, Predicate |