</var>, whose elements are all the positive integers from 1 to <var>n</var>,
without repetitions. Otherwise, it returns false.
</p>
<p>Examples:
</p>
<pre class="example">(%i1) load(&quot;combinatorics&quot;)$
(%i2) permp ([2,0,3,1]);
(%o2)                          false
(%i3) permp ([2,1,4,3]);
(%o3)                          true
</pre>
<div class=categorybox>

<p>Categories:&nbsp;&nbsp;<a href="maxima_107.html#Category_003a-Package-combinatorics">Package combinatorics</a>
</div>
</p>
</dd></dl>

<p><a nam