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<b>thus </b><a NAME="E1:202_1_1"/>
for <font color="Olive">x</font> being  <a href="nat_1.html#NM1">Nat</a> holds  <span class="p1">(<span class="default"><a href="lexbfs.html#K26" target="_self">MCS:CSeq</a> <font color="Maroon">G</font></span>)</span> <a href="lexbfs.html#K9" target="_self">.</a> <font color="Olive">x</font> is <a href="chord.html#V6">chordal</a>
 ; <i><font color="Red">:: according to </font></i><a class="ref" href="lexbfs.html#D18" target="_self">LEXBFS:def 18</a><br/>


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