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<div><span class="kw">theorem </span><span class="lab"><font color="Green" title="E17">Th13</font></span>: <a NAME="T13"><span class="comment"><font color="firebrick">:: CLASSES5:13</font></span><br/></a><div class="add"> for <font color="Olive" title="b1">U</font> being   <a href="classes2.html#NM1" title="CLASSES2:NM.1">Universe</a><br/>  for <font color="Olive" title="b2">x1</font>, <font color="Olive" title="b3">x2</font>, <font color="Olive" title="b4">x3</font>, <font color="Olive" title="b5">x4</font>, <font color="Olive" title="b6">x5</font> being    <a href="subset_1.html#M1" title="SUBSET_1:mode.1">Element</a> of <font color="Olive" title="b1">U</font> holds  <span class="p1"><a href="classes5.html#K1" title="CLASSES5:func.1">[</a><span class="default"><font color="Olive" title="b2">x1</font>,<font color="Olive" title="b3">x2</font>,<font color="Olive" title="b4">x3</font>,<font color="Olive" title="b5">x4</font>,<font color="Olive" title="b6">x5</font></span><a href="classes5.html#K1" title="CLASSES5:func.1">]</a></span> is    <a href="subset_1.html#M1" title="SUBSET_1:mode.1">Element</a> of <font color="Olive" title="b1">U</font></div></div>
