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<b>let </b><font color="Maroon">L</font> be  <a href="lattice3.html#V3">complete</a> <a href="waybel_0.html#NM8">LATTICE</a>;<br/><b>let </b><font color="Maroon">k</font> be  <a href="waybel_1.html#V8">kernel</a> <a href="struct_0.html#NM6">Function</a> of <font color="Maroon">L</font>,<font color="Maroon">L</font>;<br/>



<b>set </b><font color="Maroon">g</font> =  <a href="waybel_1.html#K2">corestr</a> <font color="Maroon">k</font>;<br/>
<b>assume </b><a NAME="E1:54"/>
<font color="Maroon">k</font> is <a href="waybel_0.html#V22">directed-sups-preserving</a>
 ;<br/>

<a NAME="E2:54"/><b>then </b>
(  <a href="waybel_1.html#K2">corestr</a> <font color="Maroon">k</font> is <a href="waybel_0.html#V22">directed-sups-preserving</a> &amp;  <a href="waybel_1.html#K2">corestr</a> <font color="Maroon">k</font> is <a href="waybel_0.html#V17">infs-preserving</a> )
 
<b>by </b><i>, </i>;<br/>
<a NAME="E3:54"/><b>then </b><i><font color="Green">E44</font></i>: 
 <a href="waybel34.html#K1" target="_self">LowerAdj</a> <span class="p1">(<span class="default"><a href="waybel_1.html#K2">corestr</a> <font color="Maroon">k</font></span>)</span> is <a href="waybel34.html#V1" target="_self">waybelow-preserving</a>
 
<b>by </b><i/>;<br/>
<b>let </b><font color="Maroon">x</font> be   <a href="struct_0.html#NM1">Element</a> of <font color="Maroon">L</font>, <font color="Maroon">y</font> be   <a href="struct_0.html#NM1">Element</a> of <font color="Maroon">L</font>;<br/><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="yellow_2.html#K1">Image</a> <font color="Maroon">k</font></span>)</span>, <font color="Maroon">b</font> be   <a href="struct_0.html#NM1">Element</a> of <span class="p1">(<span class="default"><a href="yellow_2.html#K1">Image</a> <font color="Maroon">k</font></span>)</span>;<br/>



<a NAME="E4:54"/><i><font color="Green">E45</font></i>: 
 <a href="yellow_2.html#K1">Image</a> <font color="Maroon">k</font> is <a href="yellow_0.html#V8">sups-inheriting</a>
 
<b>by </b><i><a class="ref" href="waybel_1.html#T56">WAYBEL_1:56</a></i>;<br/>
<a NAME="E5:54"/>
 <a href="waybel_1.html#K3">inclusion</a> <font color="Maroon">k</font> <a href="funct_2.html#R2">=</a>  <a href="waybel34.html#K1" target="_self">LowerAdj</a> <span class="p1">(<span class="default"><a href="waybel_1.html#K2">corestr</a> <font color="Maroon">k</font></span>)</span>
 
<b>by </b><i/>;<br/>
<a NAME="E6:54"/><b>then </b>
( <span class="p1">(<span class="default"><a href="waybel34.html#K1" target="_self">LowerAdj</a> <span class="p2">(<span class="default"><a href="waybel_1.html#K2">corestr</a> <font color="Maroon">k</font></span>)</span></span>)</span> <a href="funct_2.html#K3">.</a> <font color="Maroon">a</font> <a href="hidden.html#R1">=</a> <font color="Maroon">a</font> &amp; <span class="p1">(<span class="default"><a href="waybel34.html#K1" target="_self">LowerAdj</a> <span class="p2">(<span class="default"><a href="waybel_1.html#K2">corestr</a> <font color="Maroon">k</font></span>)</span></span>)</span> <a href="funct_2.html#K3">.</a> <font color="Maroon">b</font> <a href="hidden.html#R1">=</a> <font color="Maroon">b</font> )
 
<b>by </b><i><a class="ref" href="tmap_1.html#T91">TMAP_1:91</a></i>;<br/>
<b>hence </b><a NAME="E7:54"/>
( <font color="Maroon">a</font> <a href="hidden.html#R1">=</a> <font color="Maroon">x</font> &amp; <font color="Maroon">b</font> <a href="hidden.html#R1">=</a> <font color="Maroon">y</font> implies ( <font color="Maroon">x</font> <a href="waybel_3.html#NR2" target="_self">&lt;&lt;</a> <font color="Maroon">y</font> iff <font color="Maroon">a</font> <a href="waybel_3.html#NR2" target="_self">&lt;&lt;</a> <font color="Maroon">b</font> ) )
 <b>by </b><i>, , , </i>;<br/>


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