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<div><span class="kw">theorem </span><span class="lab"><font color="Green" title="E13">Th18</font></span>: <a NAME="T18"><span class="comment"><font color="firebrick">:: FUNCT_1:18</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> <br/>  for <font color="Olive" title="b2">x</font> being    <a href="hidden.html#M1" title="HIDDEN:mode.1">object</a>   st <font color="Olive" title="b2">x</font> <a href="hidden.html#R2" title="HIDDEN:pred.2">in</a> <font color="Olive" title="b1">X</font> holds <br/><span class="p1">(<span class="default"><a href="relat_1.html#K4" title="RELAT_1:func.4">id</a> <font color="Olive" title="b1">X</font></span>)</span> <a href="funct_1.html#K1" title="FUNCT_1:func.1">.</a> <font color="Olive" title="b2">x</font> <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a> <font color="Olive" title="b2">x</font> <span class="kw">by</span> <span class="lab"><a class="ref" href="funct_1.html#T17" target="_self" onmouseover="rs('funct_1/T17')" onmouseout="rh()">Th17</a></span>;<br/></div></div>
