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<b>let </b><font color="Maroon">X</font> be   <a href="subset_1.html#NM2">Subset</a> of <a href="numbers.html#K6">ExtREAL</a> ;<br/>

<a NAME="E1:16"/>
for <font color="Olive">x</font> being  <a href="supinf_1.html#NM3">R_eal</a>  st <font color="Olive">x</font> <a href="hidden.html#R2">in</a> <font color="Maroon">X</font> holds <br/><font color="Olive">x</font> <a href="xxreal_0.html#R1">&lt;=</a>  <a href="supinf_1.html#K1" target="_self">+infty</a> 
 
<b>by </b><i><a class="ref" href="xxreal_0.html#T4">XXREAL_0:4</a></i>;<br/>
<b>hence </b><a NAME="E2:16"/>
 <a href="supinf_1.html#K1" target="_self">+infty</a>  is    <a href="supinf_1.html#M1" target="_self">majorant</a> of <font color="Maroon">X</font>
 <b>by </b><i/>;<br/>


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