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<p>-vertex-connected. <br/>
*  forms the <a href="page.php?w=Graph_of_a_polytope">vertex-edge graph</a> of an (n&nbsp;-&nbsp;1)-dimensional <a href="page.php?w=polytope">polytope</a>, called a <a href="page.php?w=hypersimplex">hypersimplex</a>. <br/>
* Any <a href="page.php?w=maximal_clique">maximal clique</a> is either of the form  for a -element subset  and , or of the form  for a -element set  for , or of the form  in the edge case .<br/>
* The <a href="page.php?w=clique_number">clique number</a> of  is given by an expression in terms of its</p><p>
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