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

<b>let </b><font color="Maroon">c<sub>2</sub></font>, <font color="Maroon">c<sub>3</sub></font> be    <a href="subset_1.html#M1">Element</a> of  <a href="arytm_2.html#K2">REAL+</a> ;<br/>



<a NAME="E1:17"/>
<font color="Maroon">c<sub>3</sub></font> <a href="arytm_2.html#R1">&lt;='</a> <font color="Maroon">c<sub>2</sub></font> <a href="arytm_2.html#K7">+</a> <font color="Maroon">c<sub>3</sub></font>
 
<b>by </b><i><a class="ref" href="arytm_2.html#T20">ARYTM_2:20</a></i>;<br/>
<b>hence </b><a NAME="E2:17"/>
<span class="p1">(<span class="default"><font color="Maroon">c<sub>2</sub></font> <a href="arytm_2.html#K7">+</a> <font color="Maroon">c<sub>3</sub></font></span>)</span> <a href="arytm_1.html#K1" target="_self">-'</a> <font color="Maroon">c<sub>3</sub></font> <a href="hidden.html#R1">=</a> <font color="Maroon">c<sub>2</sub></font>
 <b>by </b><i><a class="ref" href="arytm_1.html#D1" target="_self">Def1</a></i>;<br/>


</div>
