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<b>defpred </b><font color="Maroon">S<sub>1</sub></font>[ <a href="ordinal1.html#V3">ordinal</a>  <a href="ordinal1.html#NM1" target="_self">number</a> ] means ex <font color="Olive">b<sub>1</sub></font> being   <a href="yellow_8.html#M1">Basis</a> of <font color="Maroon">c<sub>2</sub></font> st <font color="Maroon">a<sub>1</sub></font> <a href="hidden.html#R1">=</a>  <a href="card_1.html#K1">Card</a> <font color="Olive">b<sub>1</sub></font>;<br/>
<b>consider </b><font color="Maroon">c<sub>3</sub></font> being    <a href="yellow_8.html#M1">Basis</a> of <font color="Maroon">c<sub>2</sub></font>;<br/>
<a NAME="E2:3_1_1"/>
 <a href="card_1.html#K1">Card</a> <font color="Maroon">c<sub>3</sub></font> is <a href="ordinal1.html#V3">ordinal</a>
 
;<br/>
<a NAME="E3:3_1_1"/><b>then </b><i><font color="Green">E3</font></i>: 
ex <font color="Olive">b<sub>1</sub></font> being <a href="ordinal1.html#V3">ordinal</a>  <a href="ordinal1.html#NM1" target="_self">number</a>  st <font color="Maroon">S<sub>1</sub></font>[<font color="Olive">b<sub>1</sub></font>]
 
;<br/>
<b>consider </b><font color="Maroon">c<sub>4</sub></font> being  <a href="ordinal1.html#V3">ordinal</a>  <a href="ordinal1.html#NM1" target="_self">number</a> <b> such that </b><br/><a NAME="E5:3_1_1"/><i><font color="Green">E4</font></i>: 
<font color="Maroon">S<sub>1</sub></font>[<font color="Maroon">c<sub>4</sub></font>]
 <b>and </b><br/><a NAME="E6:3_1_1"/><i><font color="Green">E5</font></i>: 
for <font color="Olive">b<sub>1</sub></font> being <a href="ordinal1.html#V3">ordinal</a>  <a href="ordinal1.html#NM1" target="_self">number</a>  st <font color="Maroon">S<sub>1</sub></font>[<font color="Olive">b<sub>1</sub></font>] holds <br/><font color="Maroon">c<sub>4</sub></font> <a href="ordinal1.html#R1">c=</a> <font color="Olive">b<sub>1</sub></font>
 <b>from </b><i><a class="ref" href="ordinal1.html#S1">ORDINAL1:sch 1</a>(<a class="txt" href="topgen_2.html#E3:3_1_1"><i><font color="Green">E3</font></i></a>);<br/></i>
<b>consider </b><font color="Maroon">c<sub>5</sub></font> being    <a href="yellow_8.html#M1">Basis</a> of <font color="Maroon">c<sub>2</sub></font><b> such that </b><br/><a NAME="E8:3_1_1"/><i><font color="Green">E6</font></i>: 
<font color="Maroon">c<sub>4</sub></font> <a href="hidden.html#R1">=</a>  <a href="card_1.html#K1">Card</a> <font color="Maroon">c<sub>5</sub></font>
 <b>by </b><i><a class="txt" href="topgen_2.html#E5:3_1_1"><i><font color="Green">E4</font></i></a></i>;<br/>
<b>take </b>
 <a href="card_1.html#K1">Card</a> <font color="Maroon">c<sub>5</sub></font>
;<br/>

<b>thus </b><a NAME="E9:3_1_1"/>
( ex <font color="Olive">b<sub>1</sub></font> being   <a href="yellow_8.html#M1">Basis</a> of <font color="Maroon">c<sub>2</sub></font> st  <a href="card_1.html#K1">Card</a> <font color="Maroon">c<sub>5</sub></font> <a href="hidden.html#R1">=</a>  <a href="card_1.html#K1">Card</a> <font color="Olive">b<sub>1</sub></font> &amp; ( for <font color="Olive">b<sub>1</sub></font> being   <a href="yellow_8.html#M1">Basis</a> of <font color="Maroon">c<sub>2</sub></font> holds  <a href="card_1.html#K1">Card</a> <font color="Maroon">c<sub>5</sub></font> <a href="card_1.html#NR1" target="_self">&lt;=`</a>  <a href="card_1.html#K1">Card</a> <font color="Olive">b<sub>1</sub></font> ) )
 <b>by </b><i><a class="txt" href="topgen_2.html#E6:3_1_1"><i><font color="Green">E5</font></i></a>, <a class="txt" href="topgen_2.html#E8:3_1_1"><i><font color="Green">E6</font></i></a></i>;<br/>


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