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<b>defpred </b><font color="Maroon">S<sub>1</sub></font>[   <a href="hidden.html#M1">set</a> ] <b>means </b>( <font color="Maroon">a<sub>1</sub></font> <a href="hidden.html#R2">in</a> <font color="Maroon">X</font> &amp; <font color="Maroon">B1</font> <a href="hidden.html#R2">in</a> <font color="Maroon">a<sub>1</sub></font> );<br/>
<b>set </b><font color="Maroon">LB</font> = <span class="p1">{<span class="default"> <font color="Olive">B2</font> where <font color="Olive">B2</font> is    <a href="subset_1.html#M1">Element</a> of <font color="Maroon">A</font> : <font color="Maroon">S<sub>1</sub></font>[<font color="Olive">B2</font>] </span>}</span> ;<br/>
<b>consider </b><font color="Maroon">B3</font> being    <a href="subset_1.html#M1">Element</a> of <font color="Maroon">A</font><b> such that </b><br/><a NAME="E2:17_1_1"/><i><font color="Green">E44</font></i>: 
<font color="Maroon">B3</font> <a href="hidden.html#R2">in</a> <span class="p1">{<span class="default"> <font color="Olive">B2</font> where <font color="Olive">B2</font> is    <a href="subset_1.html#M1">Element</a> of <font color="Maroon">A</font> : <font color="Maroon">S<sub>1</sub></font>[<font color="Olive">B2</font>] </span>}</span> 
 <b>by </b><i>, , </i>;<br/>
<a NAME="E3:17_1_1"/><i><font color="Green">E45</font></i>: 
 <a href="ordinal2.html#K2">inf</a> <span class="p1">{<span class="default"> <font color="Olive">B2</font> where <font color="Olive">B2</font> is    <a href="subset_1.html#M1">Element</a> of <font color="Maroon">A</font> : <font color="Maroon">S<sub>1</sub></font>[<font color="Olive">B2</font>] </span>}</span>  <a href="hidden.html#R2">in</a> <span class="p1">{<span class="default"> <font color="Olive">B2</font> where <font color="Olive">B2</font> is    <a href="subset_1.html#M1">Element</a> of <font color="Maroon">A</font> : <font color="Maroon">S<sub>1</sub></font>[<font color="Olive">B2</font>] </span>}</span> 
 
<b>by </b><i>, <a class="ref" href="ordinal2.html#T25">ORDINAL2:25</a></i>;<br/>
<a NAME="E4:17_1_1"/>
<font color="Maroon">S<sub>1</sub></font>[ <a href="ordinal2.html#K2">inf</a> <span class="p1">{<span class="default"> <font color="Olive">B2</font> where <font color="Olive">B2</font> is    <a href="subset_1.html#M1">Element</a> of <font color="Maroon">A</font> : <font color="Maroon">S<sub>1</sub></font>[<font color="Olive">B2</font>] </span>}</span> ]
 
<b>from </b><i><a class="ref" href="card_fil.html#S1">CARD_FIL:sch 1</a>();<br/></i>
<b>hence </b><a NAME="E5:17_1_1"/>
 <a href="ordinal2.html#K2">inf</a> <span class="p1">{<span class="default"> <font color="Olive">B2</font> where <font color="Olive">B2</font> is    <a href="subset_1.html#M1">Element</a> of <font color="Maroon">A</font> : <font color="Maroon">S<sub>1</sub></font>[<font color="Olive">B2</font>] </span>}</span>  is    <a href="subset_1.html#M1">Element</a> of <font color="Maroon">X</font>
 ;<br/>


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