title: member and defparameter
body: <p>In the following Lisp REPL interaction:</p>
  
  <pre><code>CL-USER&gt; (defparameter *unison* 0)
  *UNISON*
  CL-USER&gt; (member *unison* '(*unison*))
  NIL
  </code></pre>
  
  <p>why is nil returned?</p>