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<b>set </b><font color="Maroon">F</font> =  <a href="complfld.html#K1">F_Complex</a> ;<br/>
<a NAME="E1:101_1_1"/>
( <font color="Maroon">f</font> <a href="binop_1.html#K2">.</a> <span class="p1">(<span class="default"><a href="rlvect_1.html#K1">0.</a> <font color="Maroon">V</font></span>)</span>,<span class="p1">(<span class="default"><a href="rlvect_1.html#K1">0.</a> <font color="Maroon">V</font></span>)</span> <a href="hidden.html#R1">=</a>  <a href="rlvect_1.html#K1">0.</a> <a href="complfld.html#K1">F_Complex</a>  &amp;  <a href="bilinear.html#K14">diagker</a> <font color="Maroon">f</font> <a href="hidden.html#R1">=</a> <span class="p1">{<span class="default"> <font color="Olive">v</font> where <font color="Olive">v</font> is   <a href="vectsp_1.html#NM5">Vector</a> of <font color="Maroon">V</font> : <font color="Maroon">f</font> <a href="binop_1.html#K2">.</a> <font color="Olive">v</font>,<font color="Olive">v</font> <a href="hidden.html#R1">=</a>  <a href="rlvect_1.html#K1">0.</a> <a href="complfld.html#K1">F_Complex</a>  </span>}</span>  )
 
<b>by </b><i><a class="txt" href="hermitan.html#E12"><i><font color="Green">Lemma42</font></i></a></i>;<br/>
<a NAME="E2:101_1_1"/><b>then </b>
 <a href="rlvect_1.html#K1">0.</a> <font color="Maroon">V</font> <a href="hidden.html#R2">in</a>  <a href="bilinear.html#K14">diagker</a> <font color="Maroon">f</font>
 
;<br/>
<b>hence </b><a NAME="E3:101_1_1"/>
not  <a href="bilinear.html#K14">diagker</a> <font color="Maroon">f</font> is <a href="xboole_0.html#V1">empty</a>
 ;<br/>


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