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

<b>let </b><font color="Maroon">c<sub>1</sub></font> be    <a href="hidden.html#M1">set</a> ;<br/><b>let </b><font color="Maroon">c<sub>2</sub></font> be   <a href="finseq_1.html#NM1">FinSequence</a>;<br/>



<a NAME="E1:91"/><i><font color="Green">E49</font></i>: 
 <a href="finseq_1.html#K4" target="_self">dom</a> <font color="Maroon">c<sub>2</sub></font> <a href="hidden.html#R1">=</a>  <a href="finseq_1.html#K2" target="_self">Seg</a> <span class="p1">(<span class="default"><a href="finseq_1.html#K3" target="_self">len</a> <font color="Maroon">c<sub>2</sub></font></span>)</span>
 
<b>by </b><i><a class="ref" href="finseq_1.html#D3" target="_self">Def3</a></i>;<br/>
<a NAME="E2:91"/><i><font color="Green">E50</font></i>: 
 <a href="relat_1.html#K1">dom</a> <span class="p1">(<span class="default"><font color="Maroon">c<sub>2</sub></font> <a href="relat_1.html#K7">|</a> <font color="Maroon">c<sub>1</sub></font></span>)</span> <a href="tarski.html#R1">c=</a>  <a href="finseq_1.html#K4" target="_self">dom</a> <font color="Maroon">c<sub>2</sub></font>
 
<b>by </b><i><a class="ref" href="relat_1.html#T89">RELAT_1:89</a></i>;<br/>
<a NAME="E3:91"/>
 <a href="relat_1.html#K1">dom</a> <span class="p1">(<span class="default"><font color="Maroon">c<sub>1</sub></font> <a href="relat_1.html#K8">|</a> <font color="Maroon">c<sub>2</sub></font></span>)</span> <a href="tarski.html#R1">c=</a>  <a href="finseq_1.html#K4" target="_self">dom</a> <font color="Maroon">c<sub>2</sub></font>
 
<b>by </b><i><a class="ref" href="funct_1.html#T89">FUNCT_1:89</a></i>;<br/>
<b>hence </b><a NAME="E4:91"/>
( <font color="Maroon">c<sub>2</sub></font> <a href="relat_1.html#K7">|</a> <font color="Maroon">c<sub>1</sub></font> is   <a href="finseq_1.html#NM4">FinSubsequence</a> &amp; <font color="Maroon">c<sub>1</sub></font> <a href="relat_1.html#K8">|</a> <font color="Maroon">c<sub>2</sub></font> is   <a href="finseq_1.html#NM4">FinSubsequence</a> )
 <b>by </b><i><a class="txt" href="finseq_1.html#E1:91"><i><font color="Green">E49</font></i></a>, <a class="txt" href="finseq_1.html#E2:91"><i><font color="Green">E50</font></i></a>, <a class="ref" href="finseq_1.html#D12" target="_self">Def12</a></i>;<br/>


</div>
