<?xml version="1.0"?>
<div><span class="kw">theorem </span><a NAME="T38"><span class="comment"><font color="firebrick">:: BOOLEALG:38</font></span><br/></a><div class="add"> for <font color="Olive" title="b1">L</font> being   <a href="lattices.html#NM8" title="LATTICES:NM.8">B_Lattice</a><br/>  for <font color="Olive" title="b2">X</font>, <font color="Olive" title="b3">Y</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">X</font> <a href="boolealg.html#K1" title="BOOLEALG:func.1">\</a> <span class="p1">(<span class="default"><font color="Olive" title="b2">X</font> <a href="boolealg.html#K1" title="BOOLEALG:func.1">\</a> <font color="Olive" title="b3">Y</font></span>)</span> <a href="boolealg.html#R1" title="BOOLEALG:pred.1">=</a> <font color="Olive" title="b2">X</font> <a href="lattices.html#K4" title="LATTICES:func.4">"/\"</a> <font color="Olive" title="b3">Y</font></div></div>
