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<b>consider </b><font color="Maroon">c<sub>2</sub></font> being   <a href="struct_0.html#NM1">Element</a> of <font color="Maroon">c<sub>1</sub></font><b> such that </b><br/><a NAME="E2:41_1_1"/><i><font color="Green">E30</font></i>: 
<font color="Maroon">c<sub>2</sub></font> <a href="hidden.html#NR2" target="_self">&lt;&gt;</a>  <a href="rlvect_1.html#K1">0.</a> <font color="Maroon">c<sub>1</sub></font>
 <b>by </b><i><a class="ref" href="anproj_1.html#D8" target="_self">Def8</a></i>;<br/>
<b>thus </b><a NAME="E3:41_1_1"/>
not  <a href="anproj_1.html#K1" target="_self">Proper_Vectors_of</a> <font color="Maroon">c<sub>1</sub></font> is <a href="xboole_0.html#V1">empty</a>
 <b>by </b><i><a class="txt" href="anproj_1.html#E2:41_1_1"><i><font color="Green">E30</font></i></a>, <a class="ref" href="anproj_1.html#D4" target="_self">Def4</a></i>;<br/>


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