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<a NAME="E1:25_1_1"/>
( <font color="Maroon" title="c8">r</font> <a href="xxreal_0.html#NR3" title="XXREAL_0:NR.3">&lt;</a> 0 &amp; <font color="Maroon" title="c9">s</font> <a href="xxreal_0.html#R1" title="XXREAL_0:pred.1">&lt;=</a> 0 )
 
<b>by </b><i><a class="ref" href="xxreal_0.html#D6" title="XXREAL_0:def.6">XXREAL_0:def 6</a>, <a class="ref" href="xxreal_0.html#D7" title="XXREAL_0:def.7">XXREAL_0:def 7</a></i>;<br/>
<b>hence </b><a NAME="E2:25_1_1"/>
<font color="Maroon" title="c8">r</font> <a href="xcmplx_0.html#K2" title="XCMPLX_0:func.2">+</a> <font color="Maroon" title="c9">s</font> <a href="xxreal_0.html#NR3" title="XXREAL_0:NR.3">&lt;</a> 0
 <b>by </b><i><a class="txt" href="xreal_0.html#E24"><i><font color="Green" title="E19">Lm18</font></i></a></i>; <i><font color="Red">:: according to </font></i><a class="ref" href="xxreal_0.html#D7" title="XXREAL_0:def.7">XXREAL_0:def 7</a><br/>


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