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<b>reconsider </b><font color="Maroon">c<sub>1</sub></font> = 0 as   <a href="real_1.html#NM1">Real</a> ;<br/>
<a NAME="E2:18_1_1"/>
( <span class="p1"><a href="rcomp_1.html#K1">[.</a><span class="default">0,0</span><a href="rcomp_1.html#K1">.]</a></span> <a href="hidden.html#R1">=</a> <span class="p1"><a href="seq_4.html#K1">{</a><span class="default">0</span><a href="seq_4.html#K1">}</a></span> &amp; <span class="p1"><a href="rcomp_1.html#K1">[.</a><span class="default">0,0</span><a href="rcomp_1.html#K1">.]</a></span> is <a href="rcomp_1.html#V2">closed</a> &amp; <span class="p1"><a href="seq_4.html#K1">{</a><span class="default"><font color="Maroon">c<sub>1</sub></font></span><a href="seq_4.html#K1">}</a></span> is <a href="seq_4.html#V3">bounded</a> )
 
<b>by </b><i><a class="ref" href="rcomp_1.html#T14">RCOMP_1:14</a>, <a class="ref" href="seq_4.html#T15">SEQ_4:15</a></i>;<br/>
<b>hence </b><a NAME="E3:18_1_1"/>
ex <font color="Olive">b<sub>1</sub></font> being  <a href="subset_1.html#NM2">Subset</a> of <a href="numbers.html#K1">REAL</a>  st <br/>( not <font color="Olive">b<sub>1</sub></font> is <a href="xboole_0.html#V1">empty</a> &amp; <font color="Olive">b<sub>1</sub></font> is <a href="rcomp_1.html#V2">closed</a> &amp; <font color="Olive">b<sub>1</sub></font> is <a href="seq_4.html#V3">bounded</a> )
 ;<br/>


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