<?xml version="1.0"?>
<div class="add">

<b>let </b><font color="Maroon">L</font> be  <a href="yellow_0.html#V1">lower-bounded</a> <a href="waybel_3.html#V3">continuous</a> <a href="waybel_0.html#NM8">LATTICE</a>;<br/><b>let </b><font color="Maroon">X</font> be   <a href="struct_0.html#NM2">Subset</a> of <font color="Maroon">L</font>;<br/>



<b>assume </b><a NAME="E1:33"/><i><font color="Green">E46</font></i>: 
<font color="Maroon">X</font> <a href="hidden.html#R1">=</a> <span class="p1">(<span class="default"><a href="waybel_6.html#K3" target="_self">IRR</a> <font color="Maroon">L</font></span>)</span> <a href="subset_1.html#K7">\</a> <span class="p1"><a href="domain_1.html#K6">{</a><span class="default"><span class="p2">(<span class="default"><a href="yellow_0.html#K4">Top</a> <font color="Maroon">L</font></span>)</span></span><a href="domain_1.html#K6">}</a></span>
 ;<br/>

<a NAME="E2:33"/>
for <font color="Olive">l1</font>, <font color="Olive">l2</font> being  <a href="struct_0.html#NM1">Element</a> of <font color="Maroon">L</font>  st not <font color="Olive">l2</font> <a href="orders_2.html#R3">&lt;=</a> <font color="Olive">l1</font> holds <br/> ex <font color="Olive">p</font> being  <a href="struct_0.html#NM1">Element</a> of <font color="Maroon">L</font> st <br/>( <font color="Olive">p</font> <a href="hidden.html#R2">in</a> <font color="Maroon">X</font> &amp; <font color="Olive">l1</font> <a href="orders_2.html#R3">&lt;=</a> <font color="Olive">p</font> &amp; not <font color="Olive">l2</font> <a href="orders_2.html#R3">&lt;=</a> <font color="Olive">p</font> )
 
<div><a class="txt" onclick="hs2(this)" href="javascript:()" title="33_1"><b>proof </b></a><div class="add">

<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>assume </b><a NAME="E1:33_1"/>
not <font color="Maroon">y</font> <a href="orders_2.html#R3">&lt;=</a> <font color="Maroon">x</font>
 ;<br/>

<b>then consider </b><font color="Maroon">p</font> being   <a href="struct_0.html#NM1">Element</a> of <font color="Maroon">L</font><b> such that </b><br/><a NAME="E3:33_1"/><i><font color="Green">E47</font></i>: 
( <font color="Maroon">p</font> is <a href="waybel_6.html#V2" target="_self">meet-irreducible</a> &amp; <font color="Maroon">x</font> <a href="orders_2.html#R3">&lt;=</a> <font color="Maroon">p</font> &amp; not <font color="Maroon">y</font> <a href="orders_2.html#R3">&lt;=</a> <font color="Maroon">p</font> )
 <b>by </b><i/>;<br/>
<a NAME="E4:33_1"/><i><font color="Green">E48</font></i>: 
<font color="Maroon">p</font> <a href="hidden.html#NR2" target="_self">&lt;&gt;</a>  <a href="yellow_0.html#K4">Top</a> <font color="Maroon">L</font>
 
<b>by </b><i>, <a class="ref" href="yellow_0.html#T45">YELLOW_0:45</a></i>;<br/>
<a NAME="E5:33_1"/>
<font color="Maroon">p</font> <a href="hidden.html#R2">in</a>  <a href="waybel_6.html#K3" target="_self">IRR</a> <font color="Maroon">L</font>
 
<b>by </b><i>, </i>;<br/>
<a NAME="E6:33_1"/><b>then </b>
<font color="Maroon">p</font> <a href="hidden.html#R2">in</a> <font color="Maroon">X</font>
 
<b>by </b><i>, , <a class="ref" href="zfmisc_1.html#T64">ZFMISC_1:64</a></i>;<br/>
<b>hence </b><a NAME="E7:33_1"/>
 ex <font color="Olive">p</font> being  <a href="struct_0.html#NM1">Element</a> of <font color="Maroon">L</font> st <br/>( <font color="Olive">p</font> <a href="hidden.html#R2">in</a> <font color="Maroon">X</font> &amp; <font color="Maroon">x</font> <a href="orders_2.html#R3">&lt;=</a> <font color="Olive">p</font> &amp; not <font color="Maroon">y</font> <a href="orders_2.html#R3">&lt;=</a> <font color="Olive">p</font> )
 <b>by </b><i/>;<br/>


</div><b>end;</b></div>
<b>hence </b><a NAME="E3:33"/>
<font color="Maroon">X</font> is <a href="waybel_6.html#V4" target="_self">order-generating</a>
 <b>by </b><i/>;<br/>


</div>
