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<div class="add">

<b>consider </b><font color="Maroon">R</font> being   <a href="vectsp_2.html#NM1">comRing</a>;<br/>
<b>take </b>
<font color="Maroon">R</font>
;<br/>

<b>thus </b><a NAME="E2:2_2_1"/>
<font color="Maroon">R</font> is <a href="algstr_1.html#V3">add-right-cancelable</a>
 ;<br/>


</div>
