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<a NAME="E1:84_2_1"/>
 <a href="jgraph_6.html#K7">closed_inside_of_circle</a> <font color="Maroon">a</font>,<font color="Maroon">b</font>,<font color="Maroon">r</font> <a href="hidden.html#R1">=</a> <span class="p1">{<span class="default"> <font color="Olive">q</font> where <font color="Olive">q</font> is   <a href="pre_topc.html#NM2">Point</a> of <span class="p1">(<span class="default"><a href="euclid.html#K15">TOP-REAL</a> 2</span>)</span> : <span class="p1"><a href="toprns_1.html#K5">|.</a><span class="default"><span class="p2">(<span class="default"><font color="Olive">q</font> <a href="euclid.html#K20">-</a> <span class="p3"><a href="euclid.html#K23">|[</a><span class="default"><font color="Maroon">a</font>,<font color="Maroon">b</font></span><a href="euclid.html#K23">]|</a></span></span>)</span></span><a href="toprns_1.html#K5">.|</a></span> <a href="xxreal_0.html#R1">&lt;=</a> <font color="Maroon">r</font> </span>}</span> 
 
<b>by </b><i><a class="ref" href="jgraph_6.html#D7">JGRAPH_6:def 7</a></i>;<br/>
<b>hence </b><a NAME="E2:84_2_1"/>
 <a href="jgraph_6.html#K7">closed_inside_of_circle</a> <font color="Maroon">a</font>,<font color="Maroon">b</font>,<font color="Maroon">r</font> is <a href="jordan1.html#V1">convex</a>
 <b>by </b><i/>;<br/>


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