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<div><span class="kw">theorem </span><a NAME="T10"><span class="comment"><font color="firebrick">:: CATALAN1:10</font></span><br/></a><div class="add"> <a href="catalan1.html#K1" title="CATALAN1:func.1">Catalan</a> <a href="numbers.html#K5" title="NUMBERS:func.5">0</a> <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a>  <a href="numbers.html#K5" title="NUMBERS:func.5">0</a>  ;<br/></div></div>
