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<b>let </b><font color="Maroon">s</font> be   <a href="seq_1.html#NM1">Real_Sequence</a>, <font color="Maroon">t</font> be   <a href="seq_1.html#NM1">Real_Sequence</a>;<br/>

<b>assume </b><a NAME="E1:145_1_2"/><i><font color="Green">E31</font></i>: 
( ( for <font color="Olive">n</font> being   <a href="subset_1.html#M2">Element</a> of  <a href="numbers.html#K5">NAT</a>  holds  <font color="Maroon">s</font> <a href="seq_1.html#K2">.</a> <font color="Olive">n</font> <a href="hidden.html#R1">=</a> <span class="p1"><a href="clvect_1.html#K5" target="_self">||.</a><span class="default"><span class="p2">(<span class="default"><font color="Maroon">S</font> <a href="funct_2.html#K3">.</a> <font color="Olive">n</font></span>)</span></span><a href="clvect_1.html#K5" target="_self">.||</a></span> ) &amp; ( for <font color="Olive">n</font> being   <a href="subset_1.html#M2">Element</a> of  <a href="numbers.html#K5">NAT</a>  holds  <font color="Maroon">t</font> <a href="seq_1.html#K2">.</a> <font color="Olive">n</font> <a href="hidden.html#R1">=</a> <span class="p1"><a href="clvect_1.html#K5" target="_self">||.</a><span class="default"><span class="p2">(<span class="default"><font color="Maroon">S</font> <a href="funct_2.html#K3">.</a> <font color="Olive">n</font></span>)</span></span><a href="clvect_1.html#K5" target="_self">.||</a></span> ) )
 ;<br/>

<div><a class="txt" onclick="hs2(this)" href="javascript:()" title="145_1_2_1"><b>now </b></a><div class="add"><b>let </b><font color="Maroon">n</font> be    <a href="subset_1.html#M2">Element</a> of  <a href="numbers.html#K5">NAT</a> ;<br/><a NAME="E1:145_1_2_1"/>
<font color="Maroon">s</font> <a href="seq_1.html#K2">.</a> <font color="Maroon">n</font> <a href="hidden.html#R1">=</a> <span class="p1"><a href="clvect_1.html#K5" target="_self">||.</a><span class="default"><span class="p2">(<span class="default"><font color="Maroon">S</font> <a href="funct_2.html#K3">.</a> <font color="Maroon">n</font></span>)</span></span><a href="clvect_1.html#K5" target="_self">.||</a></span>
 <b>by </b><i><a class="ref" href="clvect_1.html#D3" target="_self">Def3</a></i>;<br/><b>hence </b><a NAME="E2:145_1_2_1"/>
<font color="Maroon">s</font> <a href="seq_1.html#K2">.</a> <font color="Maroon">n</font> <a href="hidden.html#R1">=</a> <font color="Maroon">t</font> <a href="seq_1.html#K2">.</a> <font color="Maroon">n</font>
 <b>by </b><i><a class="ref" href="clvect_1.html#D3" target="_self">Def3</a></i>;<br/></div><b>end;</b></div>
<b>hence </b><a NAME="E3:145_1_2"/>
<font color="Maroon">s</font> <a href="hidden.html#R1">=</a> <font color="Maroon">t</font>
 <b>by </b><i><a class="ref" href="funct_2.html#T113">FUNCT_2:113</a></i>;<br/>


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