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

<b>let </b><font color="Maroon">G</font> be   <a href="group_1.html#NM1">Group</a>;<br/><b>let </b><font color="Maroon">H1</font> be    <a href="group_2.html#M1" target="_self">Subgroup</a> of <font color="Maroon">G</font>;<br/><b>let </b><font color="Maroon">H2</font> be    <a href="group_2.html#M1" target="_self">Subgroup</a> of <font color="Maroon">G</font>;<br/>





<a NAME="E1:43"/>
 <a href="group_1.html#K2">1.</a> <font color="Maroon">H1</font> <a href="hidden.html#R1">=</a>  <a href="group_1.html#K2">1.</a> <font color="Maroon">G</font>
 
<b>by </b><i/>;<br/>
<b>hence </b><a NAME="E2:43"/>
 <a href="group_1.html#K2">1.</a> <font color="Maroon">H1</font> <a href="rlvect_1.html#R1">in</a> <font color="Maroon">H2</font>
 <b>by </b><i/>;<br/>


</div>
