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<b>let </b><font color="Maroon">a</font> be   <a href="struct_0.html#NM1">Element</a> of <a href="vectsp_1.html#K1">G_Real</a> ; <i><font color="Red">:: according to </font></i><a class="ref" href="vectsp_1.html#D28">VECTSP_1:def 28</a><br/>

<b>assume </b><a NAME="E1:4"/>
<font color="Maroon">a</font> <a href="rlvect_1.html#K4">+</a> <font color="Maroon">a</font> <a href="hidden.html#R1">=</a>  <a href="rlvect_1.html#K1">0.</a> <a href="vectsp_1.html#K1">G_Real</a> 
 ;<br/>

<b>hence </b><a NAME="E2:4"/>
<font color="Maroon">a</font> <a href="hidden.html#R1">=</a>  <a href="rlvect_1.html#K1">0.</a> <a href="vectsp_1.html#K1">G_Real</a> 
 <b>by </b><i/>;<br/>


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