KEYWORD-VALUE-LISTP

recognizer for true lists whose even-position elements are keywords 
Major Section:  ACL2-BUILT-INS

(keyword-value-listp l) is true if and only if l is a list of even length of the form (k1 a1 k2 a2 ... kn an), where each ki is a keyword.

To see the ACL2 definition of this function, see pf.