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<div><span class="kw">theorem </span><span class="lab"><font color="Green" title="E40">Th29</font></span>: <a NAME="T29"><span class="comment"><font color="firebrick">:: NAT_5:29</font></span><br/></a><div class="add"> for <font color="Olive" title="b1">k</font> being   <a href="ordinal1.html#NM6" title="ORDINAL1:NM.6">Nat</a> holds   <a href="nat_5.html#K3" title="NAT_5:func.3">sigma</a> (<font color="Olive" title="b1">k</font>,1) <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a> 1</div></div>
