"@default373"></A><A NAME="@obj15"></A></P><P>Parent objects: <CODE>Object</CODE>.</P><P>The <CODE>Sequence</CODE> object represents a generic object containing
sequential elements. It provides the following methods.</P><UL CLASS="itemize"><LI CLASS="li-itemize">
<CODE>$(s.length)</CODE>: the number of elements in the sequence.
</LI><LI CLASS="li-itemize"><CODE>$(s.is-nonempty)</CODE>: true iff the expression <CODE>$(s.nth 0)</CODE>
will complete without failure.
</LI><LI CLASS="li-itemize"><CODE>$(s.nth &l