characters ``<tt>(8 13)</tt>''.</p>
<p>
The external representation of an object is not necessarily unique.  The
integer 28 also has representations ``<tt>#e28.000</tt>'' and ``<tt>#x1c</tt>'', and the
list in the previous paragraph also has the representations ``<tt>( 08 13
)</tt>'' and ``<tt>(8 . (13 . ()))</tt>'' (see section&nbsp;<a href="r5rs-Z-H-9.html#%_sec_6.3.2">6.3.2</a>).</p>
<p>
Many objects have standard external representations, but some, such as
procedures, do not have standard representation