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<head><title>RASSOC.html -- ACL2 Version 3.1</title></head>
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<h2>RASSOC</h2>look up value in association list, using <code><a href="EQL.html">eql</a></code> as test
<pre>Major Section: <a href="PROGRAMMING.html">PROGRAMMING</a>
</pre><p>
<code>(Rassoc x alist)</code> is similar to <code>(assoc x alist)</code>, the difference
being that it looks for the first pair in the given alist whose
<code><a href="CDR.html">cdr</a></code>, rather than <code><a href="CAR.html">car</a></code>, is <code><a href="EQL.html">eql</a></code> to <code>x</code>. See <a href="ASSOC.html">assoc</a>.
<p>
The <a href="GUARD.html">guard</a> of <code>rassoc</code> requires its second argument to be an alist,
and in addition, that either its first argument is <code><a href="EQLABLEP.html">eqlablep</a></code> or
else all second components of pairs belonging to the second argument
are <code><a href="EQLABLEP.html">eqlablep</a></code>. See <a href="EQLABLEP.html">eqlablep</a>.<p>
<code>Rassoc</code> is a Common Lisp function. See any Common Lisp
documentation for more information.
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