| ▼ | 4 | Datatypes | 
| 4.1 | Equality | 
| 4.2 | Booleans | 
| 4.3 | Numbers | 
| 4.4 | Strings | 
| 4.5 | Byte Strings | 
| 4.6 | Characters | 
| 4.7 | Symbols | 
| 4.8 | Regular Expressions | 
| 4.9 | Keywords | 
| 4.10 | Pairs and Lists | 
| 4.11 | Mutable Pairs and Lists | 
| 4.12 | Vectors | 
| 4.13 | Stencil Vectors | 
| 4.14 | Boxes | 
| 4.15 | Hash Tables | 
| 4.16 | Treelists | 
| 4.17 | Sequences and Streams | 
| 4.18 | Dictionaries | 
| 4.19 | Sets | 
| 4.20 | Procedures | 
| 4.21 | Void | 
| 4.22 | Undefined |