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<b>let </b><font color="Maroon">L</font> be   <a href="lattices.html#NM8">B_Lattice</a>;<br/><b>let </b><font color="Maroon">X</font> be   <a href="struct_0.html#NM1">Element</a> of <font color="Maroon">L</font>;<br/>



<b>thus </b><font color="Maroon">X</font> <a href="boolealg.html#K3" target="_self">\+\</a> <font color="Maroon">X</font> = 
<font color="Maroon">X</font> <a href="boolealg.html#K1" target="_self">\</a> <font color="Maroon">X</font>
<b>by </b><i><a class="ref" href="lattices.html#T17">LATTICES:17</a></i>
<br/>.= 
 <a href="lattices.html#K5">Bottom</a> <font color="Maroon">L</font>
<b>by </b><i><a class="ref" href="lattices.html#T47">LATTICES:47</a></i>
;<br/>


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