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

<b>let </b><font color="Maroon">R</font> be   <a href="vectsp_2.html#NM3">Skew-Field</a>;<br/><b>let </b><font color="Maroon">V</font> be   <a href="vectsp_2.html#NM6">LeftMod</a> of <font color="Maroon">R</font>;<br/>



<a NAME="E1:27"/>
 ex <font color="Olive">B</font> being  <a href="struct_0.html#NM2">Subset</a> of <font color="Maroon">V</font> st <font color="Olive">B</font> is <a href="mod_3.html#V1" target="_self">base</a>
 
<b>by </b><i><a class="txt" href="mod_3.html#E1"><i><font color="Green">Lemma18</font></i></a></i>;<br/>
<b>hence </b><a NAME="E2:27"/>
<font color="Maroon">V</font> is <a href="mod_3.html#V2" target="_self">free</a>
 <b>by </b><i/>;<br/>


</div>
