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<head><title>REAL_slash_RATIONALP.html -- ACL2 Version 3.1</title></head>
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<h2>REAL/RATIONALP</h2>recognizer for rational numbers (including real number in ACL2(r))
<pre>Major Section: <a href="PROGRAMMING.html">PROGRAMMING</a>
</pre><p>
For most ACL2 users, this is a macro abbreviating <code><a href="RATIONALP.html">rationalp</a></code>. In
ACL2(r) (see <a href="REAL.html">real</a>), this macro abbreviates the predicate <code>realp</code>,
which holds for real numbers as well (including rationals). Most
ACL2 users can ignore this macro and use <code><a href="RATIONALP.html">rationalp</a></code> instead,
but many books in the ACL2 distribution use <code>real/rationalp</code> so that
these books will be suitable for ACL2(r) as well.
<p>
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