<?xml version="1.0"?>
<div class="add">

<b>let </b><font color="Maroon" title="c1">V</font> be   <a href="rlvect_1.html#NM2" title="RLVECT_1:NM.2">RealLinearSpace</a>;<br/><b>let </b><font color="Maroon" title="c2">u</font> be   <a href="rlvect_1.html#NM1" title="RLVECT_1:NM.1">VECTOR</a> of <font color="Maroon" title="c1">V</font>;<br/><b>let </b><font color="Maroon" title="c3">W</font> be    <a href="rlsub_1.html#M1" title="RLSUB_1:mode.1">Subspace</a> of <font color="Maroon" title="c1">V</font>;<br/><b>let </b><font color="Maroon" title="c4">B</font>, <font color="Maroon" title="c5">C</font> be    <a href="rlsub_1.html#M2" title="RLSUB_1:mode.2">Coset</a> of <font color="Maroon" title="c3">W</font>;<br/>









<b>assume </b><a NAME="E1:85"/><i><font color="Green" title="E54">A1</font></i>: 
( <font color="Maroon" title="c2">u</font> <a href="hidden.html#R2" title="HIDDEN:pred.2">in</a> <font color="Maroon" title="c4">B</font> &amp; <font color="Maroon" title="c2">u</font> <a href="hidden.html#R2" title="HIDDEN:pred.2">in</a> <font color="Maroon" title="c5">C</font> )
 ;<br/>

<a NAME="E2:85"/><i><font color="Green" title="E55">A2</font></i>: 
 ex <font color="Olive" title="b1">v1</font> being  <a href="rlvect_1.html#NM1" title="RLVECT_1:NM.1">VECTOR</a> of <font color="Maroon" title="c1">V</font> st <font color="Maroon" title="c4">B</font> <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a> <font color="Olive" title="b1">v1</font> <a href="rlsub_1.html#K3" title="RLSUB_1:func.3">+</a> <font color="Maroon" title="c3">W</font>
 
<b>by </b><i><a class="ref" href="rlsub_1.html#D6" target="_self" title="RLSUB_1:def.6">Def6</a></i>;<br/>
<a NAME="E3:85"/>
 ex <font color="Olive" title="b1">v2</font> being  <a href="rlvect_1.html#NM1" title="RLVECT_1:NM.1">VECTOR</a> of <font color="Maroon" title="c1">V</font> st <font color="Maroon" title="c5">C</font> <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a> <font color="Olive" title="b1">v2</font> <a href="rlsub_1.html#K3" title="RLSUB_1:func.3">+</a> <font color="Maroon" title="c3">W</font>
 
<b>by </b><i><a class="ref" href="rlsub_1.html#D6" target="_self" title="RLSUB_1:def.6">Def6</a></i>;<br/>
<b>hence </b><a NAME="E4:85"/>
<font color="Maroon" title="c4">B</font> <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a> <font color="Maroon" title="c5">C</font>
 <b>by </b><i><a class="txt" href="rlsub_1.html#E1:85"><i><font color="Green" title="E54">A1</font></i></a>, <a class="txt" href="rlsub_1.html#E2:85"><i><font color="Green" title="E55">A2</font></i></a>, <a class="ref" href="rlsub_1.html#T72" target="_self" title="RLSUB_1:th.72">Th72</a></i>;<br/>


</div>
