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<div><span class="kw">theorem </span><span class="lab"><font color="Green" title="E16">Th19</font></span>: <a NAME="T19"><span class="comment"><font color="firebrick">:: CLASSES1:19</font></span><br/></a><div class="add"> for <font color="Olive" title="b1">X</font> being    <a href="hidden.html#M2" title="HIDDEN:mode.2">set</a>   ex <font color="Olive" title="b2">A</font> being   <a href="ordinal1.html#NM3" title="ORDINAL1:NM.3">Ordinal</a> st  <a href="classes1.html#K3" title="CLASSES1:func.3">Tarski-Class</a> (<font color="Olive" title="b1">X</font>,<font color="Olive" title="b2">A</font>) <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a>  <a href="classes1.html#K1" title="CLASSES1:func.1">Tarski-Class</a> <font color="Olive" title="b1">X</font></div></div>
