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<div><span class="kw">theorem </span><span class="lab"><font color="Green" title="E39">Th47</font></span>: <a NAME="T49"><span class="comment"><font color="firebrick">:: CARD_1:49</font></span><br/></a><div class="add">1 <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a> <span class="p1"><a href="tarski.html#K1" title="TARSKI:func.1">{</a><span class="default"><a href="ordinal1.html#K5" title="ORDINAL1:func.5">0</a></span><a href="tarski.html#K1" title="TARSKI:func.1">}</a></span></div></div>
