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<b>consider </b><font color="Maroon">B</font> being    <a href="finseq_1.html#M2">FinSequence</a> of  <a href="zfmisc_1.html#K1">bool</a> <font color="Maroon">D</font><b> such that </b><br/><a NAME="E2:8_1_1"/><i><font color="Green">E33</font></i>: 
(  <a href="finseq_1.html#K3">len</a> <font color="Maroon">B</font> <a href="hidden.html#R1">=</a>  <a href="card_1.html#K4">card</a> <font color="Maroon">D</font> &amp; <font color="Maroon">B</font> is <a href="rearran1.html#V2" target="_self">ascending</a> &amp; <font color="Maroon">B</font> is <a href="rearran1.html#V1" target="_self">terms've_same_card_as_number</a> )
 <b>by </b><i/>;<br/>
<b>take </b>
<font color="Maroon">B</font>
;<br/>

<a NAME="E3:8_1_1"/>
 <a href="tarski.html#K3">union</a> <span class="p1">(<span class="default"><a href="zfmisc_1.html#K1">bool</a> <font color="Maroon">D</font></span>)</span> <a href="hidden.html#R1">=</a> <font color="Maroon">D</font>
 
<b>by </b><i><a class="ref" href="zfmisc_1.html#T99">ZFMISC_1:99</a></i>;<br/>
<b>hence </b><a NAME="E4:8_1_1"/>
( <font color="Maroon">B</font> is <a href="rearran1.html#V1" target="_self">terms've_same_card_as_number</a> &amp; <font color="Maroon">B</font> is <a href="rearran1.html#V2" target="_self">ascending</a> &amp; <font color="Maroon">B</font> is <a href="rearran1.html#V3" target="_self">lenght_equal_card_of_set</a> )
 <b>by </b><i>, </i>;<br/>


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