3. Alphabetical Listing of all Routines

flat_sequence

Syntax: flat_sequence(s)
Description: Returns TRUE (1) if, and only if, s is a sequence that contains only atoms.



non_empty

Syntax: non_empty(s)
Description: Returns TRUE (1) if, and only if, s is a sequence that is not empty.



pair

Syntax: pair(s)
Description: Returns TRUE (1) if, and only if, s is a sequence that contains only two elements.