A predicate to check for sequences.
lispworks
sequencep object => result
object
A Lisp object.
result
A generalized boolean.
The function sequencep returns true if object is of type sequence and false otherwise.
sequencep
sequence
(sequencep '(1 2 3)) => t
(sequencep #(1 2 3)) => t
(sequencep 123) => nil
LispWorks User Guide and Reference Manual - 20 Sep 2017
