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

<b>let </b><font color="Maroon">N</font> be  non <a href="struct_0.html#V3">empty</a>  <a href="monoid_0.html#M3" target="_self">MonoidalSubStr</a> of <font color="Maroon">G</font>;<br/>

<a NAME="E1:94_2_1"/>
<font color="Maroon">N</font> is    <a href="monoid_0.html#M2" target="_self">SubStr</a> of <font color="Maroon">G</font>
 
<b>by </b><i/>;<br/>
<b>hence </b><a NAME="E2:94_2_1"/>
<font color="Maroon">N</font> is <a href="monoid_0.html#V10" target="_self">idempotent</a>
 <b>by </b><i/>;<br/>


</div>
