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<b>let </b><font color="Maroon">G</font> be   <a href="group_1.html#NM1">Group</a>;<br/>

<b>set </b><font color="Maroon">L</font> =  <a href="group_4.html#K11" target="_self">lattice</a> <font color="Maroon">G</font>;<br/>
<b>reconsider </b><font color="Maroon">E</font> =  <a href="group_2.html#K6">(Omega).</a> <font color="Maroon">G</font> as   <a href="struct_0.html#NM1">Element</a> of <span class="p1">(<span class="default"><a href="group_4.html#K11" target="_self">lattice</a> <font color="Maroon">G</font></span>)</span> <b>by </b><i><a class="ref" href="group_3.html#D1">GROUP_3:def 1</a></i>;<br/>
<div><a class="txt" onclick="hs2(this)" href="javascript:()" title="86_1"><b>now </b></a><div class="add"><b>let </b><font color="Maroon">A</font> be   <a href="struct_0.html#NM1">Element</a> of <span class="p1">(<span class="default"><a href="group_4.html#K11" target="_self">lattice</a> <font color="Maroon">G</font></span>)</span>;<br/><b>reconsider </b><font color="Maroon">H</font> = <font color="Maroon">A</font> as    <a href="group_2.html#M1">Subgroup</a> of <font color="Maroon">G</font> <b>by </b><i><a class="ref" href="group_3.html#D1">GROUP_3:def 1</a></i>;<br/><b>thus </b><font color="Maroon">A</font> <a href="lattices.html#K3">"\/"</a> <font color="Maroon">E</font> = 
<span class="p1">(<span class="default"><a href="group_4.html#K9" target="_self">SubJoin</a> <font color="Maroon">G</font></span>)</span> <a href="binop_1.html#K1">.</a> <font color="Maroon">A</font>,<font color="Maroon">E</font>
<b>by </b><i><a class="ref" href="lattices.html#D1">LATTICES:def 1</a></i>
<br/>.= 
<font color="Maroon">H</font> <a href="group_4.html#K8" target="_self">"\/"</a> <span class="p1">(<span class="default"><a href="group_2.html#K6">(Omega).</a> <font color="Maroon">G</font></span>)</span>
<b>by </b><i/>
<br/>.= 
<font color="Maroon">E</font>
<b>by </b><i/>
;<br/></div><b>end;</b></div>
<b>hence </b><a NAME="E3:86"/>
 <a href="lattices.html#K6">Top</a> <span class="p1">(<span class="default"><a href="group_4.html#K11" target="_self">lattice</a> <font color="Maroon">G</font></span>)</span> <a href="hidden.html#R1">=</a>  <a href="group_2.html#K6">(Omega).</a> <font color="Maroon">G</font>
 <b>by </b><i><a class="ref" href="rlsub_2.html#T85">RLSUB_2:85</a></i>;<br/>


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