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<div><span class="kw">theorem </span><a NAME="T16"><span class="comment"><font color="firebrick">:: GROUP_10:16</font></span><br/></a><div class="add"> for <font color="Olive" title="b1">n</font> being   non  <a href="ordinal1.html#V8" title="ORDINAL1:attr.8">zero</a>  <a href="ordinal1.html#NM6" title="ORDINAL1:NM.6">Nat</a> holds   <a href="group_1.html#K7" title="GROUP_1:func.7">card</a> <span class="p1">(<span class="default"><a href="gr_cy_1.html#K4" title="GR_CY_1:func.4">INT.Group</a> <font color="Olive" title="b1">n</font></span>)</span> <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a> <font color="Olive" title="b1">n</font> <span class="kw">by</span> <span class="lab"><a class="txt" href="group_10.html#E26"><span class="lab"><font color="Green" title="E19">Lm1</font></span></a></span>;<br/></div></div>
