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<div><span class="kw">theorem </span><span class="lab"><font color="Green" title="E23">Th34</font></span>: <a NAME="T34"><span class="comment"><font color="firebrick">:: ZF_LANG:34</font></span><br/></a><div class="add"> for <font color="Olive" title="b1">x</font>, <font color="Olive" title="b2">y</font> being   <a href="zf_lang.html#NM1" title="ZF_LANG:NM.1">Variable</a><br/>  for <font color="Olive" title="b3">G</font>, <font color="Olive" title="b4">H</font> being   <a href="zf_lang.html#NM2" title="ZF_LANG:NM.2">ZF-formula</a>  st  <a href="zf_lang.html#K12" title="ZF_LANG:func.12">Ex</a> (<font color="Olive" title="b1">x</font>,<font color="Olive" title="b4">H</font>) <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a>  <a href="zf_lang.html#K12" title="ZF_LANG:func.12">Ex</a> (<font color="Olive" title="b2">y</font>,<font color="Olive" title="b3">G</font>) holds <br/>( <font color="Olive" title="b1">x</font> <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a> <font color="Olive" title="b2">y</font> &amp; <font color="Olive" title="b4">H</font> <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a> <font color="Olive" title="b3">G</font> )</div></div>
