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<b>let </b><font color="Maroon">V</font> be  <a href="bhsp_1.html#V1">strict</a> <a href="bhsp_1.html#NM1">RealUnitarySpace</a>;<br/><b>let </b><font color="Maroon">W</font> be  <a href="bhsp_1.html#V1">strict</a>  <a href="rusub_1.html#M1" target="_self">Subspace</a> of <font color="Maroon">V</font>;<br/>



<b>assume </b><a NAME="E1:29"/><i><font color="Green">E19</font></i>: 
for <font color="Olive">v</font> being  <a href="rlvect_1.html#NM1">VECTOR</a> of <font color="Maroon">V</font> holds <br/> ( <font color="Olive">v</font> <a href="rlvect_1.html#R1">in</a> <font color="Maroon">W</font> iff <font color="Olive">v</font> <a href="rlvect_1.html#R1">in</a> <font color="Maroon">V</font> )
 ;<br/>

<a NAME="E2:29"/>
<font color="Maroon">V</font> is    <a href="rusub_1.html#M1" target="_self">Subspace</a> of <font color="Maroon">V</font>
 
<b>by </b><i/>;<br/>
<b>hence </b><a NAME="E3:29"/>
<font color="Maroon">W</font> <a href="hidden.html#R1">=</a> <font color="Maroon">V</font>
 <b>by </b><i>, </i>;<br/>


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