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<div><span class="kw">theorem </span><a NAME="T66"><span class="comment"><font color="firebrick">:: CARD_2:66</font></span><br/></a><div class="add"> for <font color="Olive" title="b1">M</font>, <font color="Olive" title="b2">N</font> being   <a href="card_1.html#NM1" title="CARD_1:NM.1">Cardinal</a> holds   <a href="card_3.html#K7" title="CARD_3:func.7">Product</a> <span class="p1">(<span class="default"><font color="Olive" title="b2">N</font> <a href="funcop_1.html#K7" title="FUNCOP_1:func.7">--&gt;</a> <font color="Olive" title="b1">M</font></span>)</span> <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a>  <a href="card_2.html#K3" title="CARD_2:func.3">exp</a> (<font color="Olive" title="b1">M</font>,<font color="Olive" title="b2">N</font>) <span class="kw">by</span> <span class="lab"><a class="ref" href="card_3.html#T11" onmouseover="rs('card_3/T11')" onmouseout="rh()">CARD_3:11</a></span>;<br/></div></div>
