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<b>let </b><font color="Maroon" title="c1">L</font> be  non <a href="realset2.html#V3" title="REALSET2:attr.3">trivial</a> <a href="yellow_0.html#V3" title="YELLOW_0:attr.3">bounded</a> <a href="waybel_0.html#NM6" title="WAYBEL_0:NM.6">Semilattice</a>;<br/><b>let </b><font color="Maroon" title="c2">x</font> be   <a href="struct_0.html#NM1" title="STRUCT_0:NM.1">Element</a> of <font color="Maroon" title="c1">L</font>;<br/>



<b>assume </b><a NAME="E1:61"/><i><font color="Green" title="E36">A1</font></i>: 
<font color="Maroon" title="c2">x</font> is <a href="waybel12.html#V2" title="WAYBEL12:attr.2">dense</a>
 ;<br/>

<a NAME="E2:61"/>
 <a href="yellow_0.html#K4" title="YELLOW_0:func.4">Top</a> <font color="Maroon" title="c1">L</font> <a href="hidden.html#NR2" title="HIDDEN:NR.2">&lt;&gt;</a>  <a href="yellow_0.html#K3" title="YELLOW_0:func.3">Bottom</a> <font color="Maroon" title="c1">L</font>
 
<b>by </b><i><a class="ref" href="waybel_7.html#T5" title="WAYBEL_7:th.5">WAYBEL_7:5</a></i>;<br/>
<a NAME="E3:61"/><b>then </b>
<font color="Maroon" title="c2">x</font> <a href="lattice3.html#K12" title="LATTICE3:func.12">"/\"</a> <span class="p1">(<span class="default"><a href="yellow_0.html#K4" title="YELLOW_0:func.4">Top</a> <font color="Maroon" title="c1">L</font></span>)</span> <a href="hidden.html#NR2" title="HIDDEN:NR.2">&lt;&gt;</a>  <a href="yellow_0.html#K3" title="YELLOW_0:func.3">Bottom</a> <font color="Maroon" title="c1">L</font>
 
<b>by </b><i><a class="txt" href="waybel12.html#E1:61"><i><font color="Green" title="E36">A1</font></i></a>, <a class="ref" href="waybel12.html#D4" target="_self" title="WAYBEL12:def.4">Def4</a></i>;<br/>
<b>hence </b><a NAME="E4:61"/>
<font color="Maroon" title="c2">x</font> <a href="hidden.html#NR2" title="HIDDEN:NR.2">&lt;&gt;</a>  <a href="yellow_0.html#K3" title="YELLOW_0:func.3">Bottom</a> <font color="Maroon" title="c1">L</font>
 <b>by </b><i><a class="ref" href="waybel_1.html#T5" title="WAYBEL_1:th.5">WAYBEL_1:5</a></i>;<br/>


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