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

<b>let </b><font color="Maroon">c<sub>1</sub></font> be   <a href="group_1.html#NM1">Group</a>;<br/>

<b>set </b><font color="Maroon">c<sub>2</sub></font> = the <a href="group_1.html#U1" target="_self">mult</a> of <font color="Maroon">c<sub>1</sub></font>;<br/>
<a NAME="E1:36"/>
( the <a href="group_1.html#U1" target="_self">mult</a> of <font color="Maroon">c<sub>1</sub></font> <a href="setwiseo.html#NR1" target="_self">has_a_unity</a>  &amp; the <a href="group_1.html#U1" target="_self">mult</a> of <font color="Maroon">c<sub>1</sub></font> is <a href="binop_1.html#V2">associative</a> &amp; the <a href="group_1.html#U1" target="_self">mult</a> of <font color="Maroon">c<sub>1</sub></font> <a href="finseqop.html#NR2" target="_self">has_an_inverseOp</a>  &amp;  <a href="group_1.html#K4" target="_self">inverse_op</a> <font color="Maroon">c<sub>1</sub></font> <a href="finseqop.html#R1">is_an_inverseOp_wrt</a> the <a href="group_1.html#U1" target="_self">mult</a> of <font color="Maroon">c<sub>1</sub></font> )
 
<b>by </b><i><a class="ref" href="group_1.html#T31" target="_self">Th31</a>, <a class="ref" href="group_1.html#T34" target="_self">Th34</a>, <a class="ref" href="group_1.html#T35" target="_self">Th35</a>, <a class="ref" href="group_1.html#T36" target="_self">Th36</a></i>;<br/>
<b>hence </b><a NAME="E2:36"/>
 <a href="finseqop.html#K6">the_inverseOp_wrt</a> the <a href="group_1.html#U1" target="_self">mult</a> of <font color="Maroon">c<sub>1</sub></font> <a href="funct_2.html#R2">=</a>  <a href="group_1.html#K4" target="_self">inverse_op</a> <font color="Maroon">c<sub>1</sub></font>
 <b>by </b><i><a class="ref" href="finseqop.html#D3">FINSEQOP:def 3</a></i>;<br/>


</div>
