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<b>let </b><font color="Maroon">L1</font> be  <a href="waybel_3.html#V3">continuous</a> <a href="waybel_0.html#NM7">sup-Semilattice</a>;<br/>

<b>defpred </b><font color="Maroon">S<sub>1</sub></font>[  <a href="ordinal1.html#NM2">Ordinal</a>] <b>means </b><font color="Maroon">a<sub>1</sub></font> <a href="hidden.html#R2">in</a> <span class="p1">{<span class="default"> <span class="p2">(<span class="default"><a href="card_1.html#K1">Card</a> <font color="Olive">B1</font></span>)</span> where <font color="Olive">B1</font> is  <a href="waybel23.html#V6">with_bottom</a>  <a href="waybel23.html#M1">CLbasis</a> of <font color="Maroon">L1</font> : verum </span>}</span> ;<br/>
<a NAME="E1:6"/><i><font color="Green">E40</font></i>: 
 ex <font color="Olive">A</font> being  <a href="ordinal1.html#NM2">Ordinal</a> st <font color="Maroon">S<sub>1</sub></font>[<font color="Olive">A</font>]
 
<div><a class="txt" onclick="hs2(this)" href="javascript:()" title="6_1"><b>proof </b></a><div class="add">

<b>take </b>
 <a href="card_1.html#K1">Card</a> <span class="p1">(<span class="default"><a href="pre_topc.html#K2">[#]</a> <font color="Maroon">L1</font></span>)</span>
;<br/>

<a NAME="E1:6_1"/>
 <a href="pre_topc.html#K2">[#]</a> <font color="Maroon">L1</font> is    <a href="waybel23.html#M1">CLbasis</a> of <font color="Maroon">L1</font>
 
<b>by </b><i><a class="ref" href="yellow15.html#T26">YELLOW15:26</a></i>;<br/>
<b>hence </b><a NAME="E2:6_1"/>
<font color="Maroon">S<sub>1</sub></font>[ <a href="card_1.html#K1">Card</a> <span class="p1">(<span class="default"><a href="pre_topc.html#K2">[#]</a> <font color="Maroon">L1</font></span>)</span>]
 ;<br/>


</div><b>end;</b></div>
<b>consider </b><font color="Maroon">A</font> being   <a href="ordinal1.html#NM2">Ordinal</a><b> such that </b><br/><a NAME="E3:6"/><i><font color="Green">E41</font></i>: 
<font color="Maroon">S<sub>1</sub></font>[<font color="Maroon">A</font>]
 <b>and </b><br/><a NAME="E4:6"/><i><font color="Green">E43</font></i>: 
for <font color="Olive">C</font> being  <a href="ordinal1.html#NM2">Ordinal</a>  st <font color="Maroon">S<sub>1</sub></font>[<font color="Olive">C</font>] holds <br/><font color="Maroon">A</font> <a href="ordinal1.html#R1">c=</a> <font color="Olive">C</font>
 <b>from </b><i><a class="ref" href="ordinal1.html#S1">ORDINAL1:sch 1</a>();<br/></i>
<b>consider </b><font color="Maroon">B1</font> being  <a href="waybel23.html#V6">with_bottom</a>  <a href="waybel23.html#M1">CLbasis</a> of <font color="Maroon">L1</font><b> such that </b><br/><a NAME="E6:6"/><i><font color="Green">E46</font></i>: 
<font color="Maroon">A</font> <a href="hidden.html#R1">=</a>  <a href="card_1.html#K1">Card</a> <font color="Maroon">B1</font>
 <b>by </b><i/>;<br/>
<b>take </b>
<font color="Maroon">B1</font>
;<br/>

<b>set </b><font color="Maroon">X</font> = <span class="p1">{<span class="default"> <span class="p2">(<span class="default"><a href="card_1.html#K1">Card</a> <font color="Olive">B2</font></span>)</span> where <font color="Olive">B2</font> is  <a href="waybel23.html#V6">with_bottom</a>  <a href="waybel23.html#M1">CLbasis</a> of <font color="Maroon">L1</font> : verum </span>}</span> ;<br/>
<a NAME="E7:6"/>
 <a href="pre_topc.html#K2">[#]</a> <font color="Maroon">L1</font> is    <a href="waybel23.html#M1">CLbasis</a> of <font color="Maroon">L1</font>
 
<b>by </b><i><a class="ref" href="yellow15.html#T26">YELLOW15:26</a></i>;<br/>
<a NAME="E8:6"/><b>then </b><i><font color="Green">E47</font></i>: 
 <a href="card_1.html#K1">Card</a> <span class="p1">(<span class="default"><a href="pre_topc.html#K2">[#]</a> <font color="Maroon">L1</font></span>)</span> <a href="hidden.html#R2">in</a> <span class="p1">{<span class="default"> <span class="p2">(<span class="default"><a href="card_1.html#K1">Card</a> <font color="Olive">B2</font></span>)</span> where <font color="Olive">B2</font> is  <a href="waybel23.html#V6">with_bottom</a>  <a href="waybel23.html#M1">CLbasis</a> of <font color="Maroon">L1</font> : verum </span>}</span> 
 
;<br/>
<div><a class="txt" onclick="hs2(this)" href="javascript:()" title="6_2"><b>now </b></a><div class="add"><b>let </b><font color="Maroon">x</font> be    <a href="hidden.html#M1">set</a> ;<br/><b>thus </b><a NAME="E1:6_2"/>
( ( for <font color="Olive">y</font> being   <a href="hidden.html#M1">set</a>   st <font color="Olive">y</font> <a href="hidden.html#R2">in</a> <span class="p1">{<span class="default"> <span class="p2">(<span class="default"><a href="card_1.html#K1">Card</a> <font color="Olive">B2</font></span>)</span> where <font color="Olive">B2</font> is  <a href="waybel23.html#V6">with_bottom</a>  <a href="waybel23.html#M1">CLbasis</a> of <font color="Maroon">L1</font> : verum </span>}</span>  holds <br/><font color="Maroon">x</font> <a href="hidden.html#R2">in</a> <font color="Olive">y</font> ) implies <font color="Maroon">x</font> <a href="hidden.html#R2">in</a> <font color="Maroon">A</font> )
 <b>by </b><i/>;<br/><b>assume </b><a NAME="E2:6_2"/><i><font color="Green">E49</font></i>: 
<font color="Maroon">x</font> <a href="hidden.html#R2">in</a> <font color="Maroon">A</font>
 ;<br/><b>let </b><font color="Maroon">y</font> be    <a href="hidden.html#M1">set</a> ;<br/><b>assume </b><a NAME="E3:6_2"/><i><font color="Green">E50</font></i>: 
<font color="Maroon">y</font> <a href="hidden.html#R2">in</a> <span class="p1">{<span class="default"> <span class="p2">(<span class="default"><a href="card_1.html#K1">Card</a> <font color="Olive">B2</font></span>)</span> where <font color="Olive">B2</font> is  <a href="waybel23.html#V6">with_bottom</a>  <a href="waybel23.html#M1">CLbasis</a> of <font color="Maroon">L1</font> : verum </span>}</span> 
 ;<br/><b>then consider </b><font color="Maroon">B2</font> being  <a href="waybel23.html#V6">with_bottom</a>  <a href="waybel23.html#M1">CLbasis</a> of <font color="Maroon">L1</font><b> such that </b><br/><a NAME="E5:6_2"/><i><font color="Green">E52</font></i>: 
<font color="Maroon">y</font> <a href="hidden.html#R1">=</a>  <a href="card_1.html#K1">Card</a> <font color="Maroon">B2</font>
 ;<br/><b>reconsider </b><font color="Maroon">y1</font> = <font color="Maroon">y</font> as   <a href="card_1.html#NM1">Cardinal</a> <b>by </b><i/>;<br/><a NAME="E7:6_2"/>
<font color="Maroon">A</font> <a href="ordinal1.html#R1">c=</a> <font color="Maroon">y1</font>
 <b>by </b><i>, </i>;<br/><b>hence </b><a NAME="E8:6_2"/>
<font color="Maroon">x</font> <a href="hidden.html#R2">in</a> <font color="Maroon">y</font>
 <b>by </b><i/>;<br/></div><b>end;</b></div>
<b>hence </b><a NAME="E10:6"/>
 <a href="card_1.html#K1">Card</a> <font color="Maroon">B1</font> <a href="hidden.html#R1">=</a>  <a href="waybel31.html#K1" target="_self">CLweight</a> <font color="Maroon">L1</font>
 <b>by </b><i>, , <a class="ref" href="setfam_1.html#D1">SETFAM_1:def 1</a></i>;<br/>


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