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<a NAME="E1:9_1_1"/>
<font color="Maroon" title="c1">I</font> <a href="mcart_1.html#K1" title="MCART_1:func.1">`1</a>  <a href="hidden.html#R2" title="HIDDEN:pred.2">in</a>  <a href="gr_cy_1.html#K1" title="GR_CY_1:func.1">Segm</a> 13
 
<b>by </b><i><a class="ref" href="mcart_1.html#T10" title="MCART_1:th.10">MCART_1:10</a></i>;<br/>
<b>hence </b><a NAME="E2:9_1_1"/>
<font color="Maroon" title="c1">I</font> <a href="mcart_1.html#K1" title="MCART_1:func.1">`1</a>  is    <a href="subset_1.html#M2" title="SUBSET_1:mode.2">Element</a> of  <a href="numbers.html#K5" title="NUMBERS:func.5">NAT</a> 
 ;<br/>


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