Index - N
| nearly | Optics, Optics.Prism |
| negated | Numeric.Optics |
| NoIx | Optics, Optics.Optic |
| noIx | Optics, Optics.Indexed |
| non | Optics, Optics.Iso |
| non' | Optics, Optics.Iso |
| NonEmptyIndices | Optics, Optics.Optic |
| noneOf | Optics, Optics.Fold |
| noPrefixFieldLabels | Optics, Optics.TH |
| noPrefixNamer | Optics, Optics.TH |
| notElemOf | Optics, Optics.Fold |