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<b>let </b><font color="Maroon">X</font> be  non <a href="xboole_0.html#V1">empty</a>  <a href="hidden.html#M1">set</a> ;<br/><b>let </b><font color="Maroon">Y</font> be   <a href="normsp_1.html#NM1">RealNormSpace</a>;<br/>



<a NAME="E1:28"/><i><font color="Green">E28</font></i>: 
 <a href="rsspace4.html#K5" target="_self">R_VectorSpace_of_BoundedFunctions</a> <font color="Maroon">X</font>,<font color="Maroon">Y</font> is    <a href="rlsub_1.html#M1">Subspace</a> of  <a href="lopban_1.html#K5">RealVectSpace</a> <font color="Maroon">X</font>,<font color="Maroon">Y</font>
 
<b>by </b><i/>;<br/>
<a NAME="E2:28"/>
 <a href="rlvect_1.html#K1">0.</a> <span class="p1">(<span class="default"><a href="lopban_1.html#K5">RealVectSpace</a> <font color="Maroon">X</font>,<font color="Maroon">Y</font></span>)</span> <a href="hidden.html#R1">=</a> <font color="Maroon">X</font> <a href="funcop_1.html#K2">--&gt;</a> <span class="p1">(<span class="default"><a href="rlvect_1.html#K1">0.</a> <font color="Maroon">Y</font></span>)</span>
 
<b>by </b><i><a class="ref" href="lopban_1.html#T16">LOPBAN_1:16</a></i>;<br/>
<b>hence </b><a NAME="E3:28"/>
 <a href="rlvect_1.html#K1">0.</a> <span class="p1">(<span class="default"><a href="rsspace4.html#K5" target="_self">R_VectorSpace_of_BoundedFunctions</a> <font color="Maroon">X</font>,<font color="Maroon">Y</font></span>)</span> <a href="hidden.html#R1">=</a> <font color="Maroon">X</font> <a href="funcop_1.html#K2">--&gt;</a> <span class="p1">(<span class="default"><a href="rlvect_1.html#K1">0.</a> <font color="Maroon">Y</font></span>)</span>
 <b>by </b><i>, <a class="ref" href="rlsub_1.html#T19">RLSUB_1:19</a></i>;<br/>


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