non-monotonically, so that one library's  definition 
of a rule may override that of an earler library. This requires  that there 
are never more than one rule with the same name. <b>(SL 030731)</b><br>
   </blockquote>
   <b><br>
   * asynchronous feedback - [SL nd-6]</b><br>
       
<blockquote>&nbsp; - continue where Alex left it<br>
   &nbsp; - use Nuance?<br>
   </blockquote>
   <br>
   <b>* semantics - [SL nd-7]</b><br>
     
<blockquote>&nbsp; - individuals as lambda-abstracts, apply answer to questi