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<head><title>CHAR-DOWNCASE.html -- ACL2 Version 3.1</title></head>
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<h2>CHAR-DOWNCASE</h2>turn upper-case <a href="CHARACTERS.html">characters</a> into lower-case <a href="CHARACTERS.html">characters</a>
<pre>Major Section: <a href="PROGRAMMING.html">PROGRAMMING</a>
</pre><p>
<code>(Char-downcase x)</code> is equal to <code>#a</code> when <code>x</code> is <code>#A</code>, <code>#b</code> when <code>x</code> is
<code>#B</code>, ..., and <code>#z</code> when <code>x</code> is <code>#Z</code>, and is <code>x</code> for any other character.
<p>
The <a href="GUARD.html">guard</a> for <code>char-downcase</code> requires its argument to be a standard
character (see <a href="STANDARD-CHAR-P.html">standard-char-p</a>).<p>
<code>Char-downcase</code> is a Common Lisp function. See any Common Lisp
documentation for more information.
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