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<b>let </b><font color="Maroon">V</font> be  non <a href="struct_0.html#V3">empty</a> <a href="rlvect_1.html#V4" target="_self">add-associative</a> <a href="rlvect_1.html#V5" target="_self">right_zeroed</a> <a href="rlvect_1.html#V6" target="_self">right_complementable</a>  <a href="rlvect_1.html#L1" target="_self">LoopStr</a> ;<br/><b>let </b><font color="Maroon">w</font> be   <a href="struct_0.html#NM1">Element</a> of <font color="Maroon">V</font>, <font color="Maroon">v1</font> be   <a href="struct_0.html#NM1">Element</a> of <font color="Maroon">V</font>, <font color="Maroon">v2</font> be   <a href="struct_0.html#NM1">Element</a> of <font color="Maroon">V</font>;<br/>



<b>assume </b><a NAME="E1:38"/><i><font color="Green">E30</font></i>: 
<font color="Maroon">w</font> <a href="rlvect_1.html#K6" target="_self">-</a> <font color="Maroon">v1</font> <a href="hidden.html#R1">=</a> <font color="Maroon">w</font> <a href="rlvect_1.html#K6" target="_self">-</a> <font color="Maroon">v2</font>
 ;<br/>

<a NAME="E2:38"/>
 <a href="rlvect_1.html#K5" target="_self">-</a> <font color="Maroon">v1</font> <a href="hidden.html#R1">=</a>  <a href="rlvect_1.html#K5" target="_self">-</a> <font color="Maroon">v2</font>
 
<b>by </b><i>, </i>;<br/>
<b>hence </b><a NAME="E3:38"/>
<font color="Maroon">v1</font> <a href="hidden.html#R1">=</a> <font color="Maroon">v2</font>
 <b>by </b><i/>;<br/>


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