<?xml version="1.0"?>
<div><span class="kw">theorem </span><a NAME="T12"><span class="comment"><font color="firebrick">:: NET_1:12</font></span><br/></a><div class="add"> for <font color="Olive" title="b1">N</font> being   <a href="net_1.html#NM1" title="NET_1:NM.1">Pnet</a><br/>  for <font color="Olive" title="b2">x</font> being    <a href="subset_1.html#M1" title="SUBSET_1:mode.1">Element</a> of  <a href="net_1.html#K2" title="NET_1:func.2">Elements</a> <font color="Olive" title="b1">N</font> holds   <a href="net_1.html#K4" title="NET_1:func.4">Post</a> (<font color="Olive" title="b1">N</font>,<font color="Olive" title="b2">x</font>) <a href="tarski.html#R1" title="TARSKI:pred.1">c=</a>  <a href="net_1.html#K2" title="NET_1:func.2">Elements</a> <font color="Olive" title="b1">N</font> <span class="kw">by</span> <span class="lab"><a class="ref" href="net_1.html#T11" target="_self" onmouseover="rs('net_1/T11')" onmouseout="rh()">Th11</a></span>;<br/></div></div>
