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<div><span class="kw">theorem </span><span class="lab"><font color="Green" title="E30">Th28</font></span>: <a NAME="T28"><span class="comment"><font color="firebrick">:: GRCAT_1:28</font></span><br/></a><div class="add"> for <font color="Olive" title="b1">UN</font> being   <a href="classes2.html#NM1" title="CLASSES2:NM.1">Universe</a>  ex <font color="Olive" title="b2">x</font> being    <a href="hidden.html#M2" title="HIDDEN:mode.2">set</a>  st <br/>( <font color="Olive" title="b2">x</font> <a href="tarski.html#R2" title="TARSKI:pred.2">in</a> <font color="Olive" title="b1">UN</font> &amp;  <a href="grcat_1.html#R1" title="GRCAT_1:pred.1">GO</a> <font color="Olive" title="b2">x</font>, <a href="algstr_0.html#K3" title="ALGSTR_0:func.3">Trivial-addLoopStr</a>  )</div></div>
