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<b>set </b><font color="Maroon" title="c2">M</font> =  <a href="xboole_0.html#K1" title="XBOOLE_0:func.1">{}</a> ;<br/>
<b>reconsider </b><font color="Maroon" title="c3">M</font> =  <a href="xboole_0.html#K1" title="XBOOLE_0:func.1">{}</a>  as   <a href="struct_0.html#NM2" title="STRUCT_0:NM.2">Subset</a> of <font color="Maroon" title="c1">V</font> <b>by </b><i><a class="ref" href="xboole_1.html#T2" title="XBOOLE_1:th.2">XBOOLE_1:2</a></i>;<br/>
<b>reconsider </b><font color="Maroon" title="c4">M</font> = <font color="Maroon" title="c3">M</font> as  <a href="convex3.html#V1" title="CONVEX3:attr.1">cone</a> <a href="struct_0.html#NM2" title="STRUCT_0:NM.2">Subset</a> of <font color="Maroon" title="c1">V</font> <b>by </b><i><a class="ref" href="convex3.html#T6" target="_self" title="CONVEX3:th.6">Th6</a></i>;<br/>
<b>take </b>
<font color="Maroon" title="c4">M</font>
;<br/>

<b>thus </b><a NAME="E3:13_1_1"/>
( <font color="Maroon" title="c4">M</font> is <a href="xboole_0.html#V1" title="XBOOLE_0:attr.1">empty</a> &amp; <font color="Maroon" title="c4">M</font> is <a href="convex3.html#V1" title="CONVEX3:attr.1">cone</a> )
 ;<br/>


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