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<b>consider </b><font color="Maroon">I</font> being  <a href="measure5.html#V1" target="_self">open_interval</a> <a href="subset_1.html#NM2">Subset</a> of <a href="supinf_1.html#K3">REAL</a> ;<br/>
<b>take </b>
<font color="Maroon">I</font>
;<br/>

<b>thus </b><a NAME="E2:15_1_1"/>
( <font color="Maroon">I</font> is <a href="measure5.html#V1" target="_self">open_interval</a> or <font color="Maroon">I</font> is <a href="measure5.html#V2" target="_self">closed_interval</a> or <font color="Maroon">I</font> is <a href="measure5.html#V3" target="_self">right_open_interval</a> or <font color="Maroon">I</font> is <a href="measure5.html#V4" target="_self">left_open_interval</a> )
 ; <i><font color="Red">:: according to </font></i><a class="ref" href="measure5.html#D9" target="_self">MEASURE5:def 9</a><br/>


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