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<div><span class="kw">theorem </span><a NAME="T61"><span class="comment"><font color="firebrick">:: FILTER_0:61</font></span><br/></a><div class="add"> for <font color="Olive" title="b1">L</font> being   <a href="lattices.html#NM1" title="LATTICES:NM.1">Lattice</a><br/>  for <font color="Olive" title="b2">p</font>, <font color="Olive" title="b3">q</font> being   <a href="struct_0.html#NM1" title="STRUCT_0:NM.1">Element</a> of <font color="Olive" title="b1">L</font> holds  <font color="Olive" title="b2">p</font> <a href="filter_0.html#K7" title="FILTER_0:func.7">&lt;=&gt;</a> <font color="Olive" title="b3">q</font> <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a> <font color="Olive" title="b3">q</font> <a href="filter_0.html#K7" title="FILTER_0:func.7">&lt;=&gt;</a> <font color="Olive" title="b2">p</font> ;<br/></div></div>
