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<b>take </b><font color="Maroon" title="c8">r</font> = 1;<br/>

<b>thus </b><a NAME="E1:21_1_1"/>
0 <a href="xxreal_0.html#NR3" title="XXREAL_0:NR.3">&lt;</a> <font color="Maroon" title="c8">r</font>
 <b>by </b><i><a class="txt" href="xreal_0.html#E6"><i><font color="Green" title="E6">Lm5</font></i></a>, <a class="txt" href="xreal_0.html#E13"><i><font color="Green" title="E10">Lm9</font></i></a></i>; <i><font color="Red">:: according to </font></i><a class="ref" href="xxreal_0.html#D6" title="XXREAL_0:def.6">XXREAL_0:def 6</a><br/>


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