el">Description</span> <br />A <var>dimension-value-place</var> with two
<nobr><var>slot-names</var></nobr> can be specified only for <nobr><code>:interval</code></nobr>
dimension-value types.
</p>
<p><a name="id6">Each</a> <var>superclass-name</var> argument specifies a direct superclass of the new
class. If the superclass list is empty, then the direct superclass defaults to
the single class <nobr><b><a href="ref-ksa.html">ksa</a></b></nobr>.
</p>
<p><a name="id7">The</a> <code>:metaclass</code> <nobr><va