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<a NAME="E1:26_1_1"/>
<span class="p1"><a href="toprns_1.html#K5">|.</a><span class="default"><span class="p2">(<span class="default"><font color="Maroon">x</font> <a href="euclid.html#K20">-</a> <font color="Maroon">x</font></span>)</span></span><a href="toprns_1.html#K5">.|</a></span> <a href="hidden.html#R1">=</a> 0
 
<b>by </b><i><a class="ref" href="toprns_1.html#T29">TOPRNS_1:29</a></i>;<br/>
<b>hence </b><a NAME="E2:26_1_1"/>
not  <a href="topreal9.html#K2" target="_self">cl_Ball</a> <font color="Maroon">x</font>,<font color="Maroon">r</font> is <a href="xboole_0.html#V1">empty</a>
 <b>by </b><i/>;<br/>


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