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

<b>let </b><font color="Maroon">G</font> be  <a href="group_1.html#V1">strict</a> <a href="group_1.html#NM1">Group</a>;<br/><b>let </b><font color="Maroon">f1</font> be    <a href="fraenkel.html#M2">Element</a> of  <a href="autgroup.html#K1" target="_self">Aut</a> <font color="Maroon">G</font>, <font color="Maroon">f2</font> be    <a href="fraenkel.html#M2">Element</a> of  <a href="autgroup.html#K1" target="_self">Aut</a> <font color="Maroon">G</font>;<br/>



<b>reconsider </b><font color="Maroon">f1</font> = <font color="Maroon">f1</font>, <font color="Maroon">f2</font> = <font color="Maroon">f2</font> as   <a href="group_6.html#NM2">Homomorphism</a> of <font color="Maroon">G</font>,<font color="Maroon">G</font> <b>by </b><i/>;<br/>
<a NAME="E2:10"/>
( <font color="Maroon">f1</font> <a href="group_6.html#NR3" target="_self">is_isomorphism</a>  &amp; <font color="Maroon">f2</font> <a href="group_6.html#NR3" target="_self">is_isomorphism</a>  )
 
<b>by </b><i/>;<br/>
<a NAME="E3:10"/><b>then </b>
<font color="Maroon">f1</font> <a href="group_6.html#K8">*</a> <font color="Maroon">f2</font> <a href="group_6.html#NR3" target="_self">is_isomorphism</a> 
 
<b>by </b><i><a class="ref" href="group_6.html#T74">GROUP_6:74</a></i>;<br/>
<b>hence </b><a NAME="E4:10"/>
<font color="Maroon">f1</font> <a href="partfun1.html#K1">*</a> <font color="Maroon">f2</font> is    <a href="fraenkel.html#M2">Element</a> of  <a href="autgroup.html#K1" target="_self">Aut</a> <font color="Maroon">G</font>
 <b>by </b><i/>;<br/>


</div>
