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

<b>let </b><font color="Maroon">c<sub>1</sub></font> be    <a href="orders_2.html#L1">RelStr</a> ;<br/>

<b>assume </b><a NAME="E1:23_2_1"/>
( <font color="Maroon">c<sub>1</sub></font> is <a href="yellow_0.html#V1" target="_self">lower-bounded</a> &amp; <font color="Maroon">c<sub>1</sub></font> is <a href="yellow_0.html#V2" target="_self">upper-bounded</a> )
 ; <i><font color="Red">:: according to </font></i><a class="ref" href="yellow_0.html#D6" target="_self">YELLOW_0:def 6</a><br/>

<b>hence </b><a NAME="E2:23_2_1"/>
( <font color="Maroon">c<sub>1</sub></font> is <a href="yellow_0.html#V1" target="_self">lower-bounded</a> &amp; <font color="Maroon">c<sub>1</sub></font> is <a href="yellow_0.html#V2" target="_self">upper-bounded</a> )
 ;<br/>


</div>
