Common Lisp the Language, 2nd Edition

Next: General Type Predicates Up: Predicates Previous: Logical Values

# 6.2. Data Type Predicates

Perhaps the most important predicates in Lisp are those that deal with data types; that is, given a data object one can determine whether or not it belongs to a given type, or one can compare two type specifiers.

- General Type Predicates
- Specific Data Type Predicates