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<div><span class="kw">theorem </span><a NAME="T25"><span class="comment"><font color="firebrick">:: NORMFORM:25</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">a</font> being    <a href="subset_1.html#M2" title="SUBSET_1:mode.2">Element</a> of  <a href="normform.html#K7" title="NORMFORM:func.7">DISJOINT_PAIRS</a> <font color="Olive" title="b1">X</font> holds  <font color="Olive" title="b2">a</font> <a href="domain_1.html#K2" title="DOMAIN_1:func.2">`1</a>  <a href="xboole_0.html#R1" title="XBOOLE_0:pred.1">misses</a> <font color="Olive" title="b2">a</font> <a href="domain_1.html#K3" title="DOMAIN_1:func.3">`2</a>  <span class="kw">by</span> <span class="lab"><a class="ref" href="normform.html#T23" target="_self" onmouseover="rs('normform/T23')" onmouseout="rh()">Th23</a></span>;<br/></div></div>
