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<b>let </b><font color="Maroon" title="c1">AFV</font> be   <a href="afvect0.html#NM1" title="AFVECT0:NM.1">WeakAffVect</a>;<br/><b>let </b><font color="Maroon" title="c2">o</font> be   <a href="struct_0.html#NM1" title="STRUCT_0:NM.1">Element</a> of <font color="Maroon" title="c1">AFV</font>;<br/><b>let </b><font color="Maroon" title="c3">a</font>, <font color="Maroon" title="c4">b</font> be   <a href="struct_0.html#NM1" title="STRUCT_0:NM.1">Element</a> of <span class="p1">(<span class="default"><a href="afvect0.html#K5" title="AFVECT0:func.5">GroupVect</a> <font color="Maroon" title="c1">AFV</font>,<font color="Maroon" title="c2">o</font></span>)</span>;<br/>







<b>reconsider </b><font color="Maroon" title="c5">a'</font> = <font color="Maroon" title="c3">a</font>, <font color="Maroon" title="c6">b'</font> = <font color="Maroon" title="c4">b</font> as   <a href="struct_0.html#NM1" title="STRUCT_0:NM.1">Element</a> of <font color="Maroon" title="c1">AFV</font> ;<br/>
<b>reconsider </b><font color="Maroon" title="c7">c'</font> = <font color="Maroon" title="c3">a</font> <a href="algstr_0.html#K1" title="ALGSTR_0:func.1">+</a> <font color="Maroon" title="c4">b</font> as   <a href="struct_0.html#NM1" title="STRUCT_0:NM.1">Element</a> of <font color="Maroon" title="c1">AFV</font> ;<br/>
<a NAME="E3:55"/>
<font color="Maroon" title="c7">c'</font> <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a>  <a href="afvect0.html#K2" title="AFVECT0:func.2">Padd</a> <font color="Maroon" title="c2">o</font>,<font color="Maroon" title="c5">a'</font>,<font color="Maroon" title="c6">b'</font>
 
<b>by </b><i><a class="ref" href="afvect0.html#D7" target="_self" title="AFVECT0:def.7">Def7</a></i>;<br/>
<a NAME="E4:55"/><b>then </b>
<font color="Maroon" title="c2">o</font>,<font color="Maroon" title="c5">a'</font> <a href="analoaf.html#R2" title="ANALOAF:pred.2">//</a> <font color="Maroon" title="c6">b'</font>,<font color="Maroon" title="c7">c'</font>
 
<b>by </b><i><a class="ref" href="afvect0.html#D5" target="_self" title="AFVECT0:def.5">Def5</a></i>;<br/>
<a NAME="E5:55"/><b>then </b>
<font color="Maroon" title="c2">o</font>,<font color="Maroon" title="c6">b'</font> <a href="analoaf.html#R2" title="ANALOAF:pred.2">//</a> <font color="Maroon" title="c5">a'</font>,<font color="Maroon" title="c7">c'</font>
 
<b>by </b><i><a class="ref" href="afvect0.html#D1" target="_self" title="AFVECT0:def.1">Def1</a></i>;<br/>
<b>then </b><font color="Maroon" title="c7">c'</font> = 
 <a href="afvect0.html#K2" title="AFVECT0:func.2">Padd</a> <font color="Maroon" title="c2">o</font>,<font color="Maroon" title="c6">b'</font>,<font color="Maroon" title="c5">a'</font>
<b>by </b><i><a class="ref" href="afvect0.html#D5" target="_self" title="AFVECT0:def.5">Def5</a></i>
<br/>.= 
<font color="Maroon" title="c4">b</font> <a href="algstr_0.html#K1" title="ALGSTR_0:func.1">+</a> <font color="Maroon" title="c3">a</font>
<b>by </b><i><a class="ref" href="afvect0.html#D7" target="_self" title="AFVECT0:def.7">Def7</a></i>
;<br/>
<b>hence </b><a NAME="E7:55"/>
<font color="Maroon" title="c3">a</font> <a href="algstr_0.html#K1" title="ALGSTR_0:func.1">+</a> <font color="Maroon" title="c4">b</font> <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a> <font color="Maroon" title="c4">b</font> <a href="algstr_0.html#K1" title="ALGSTR_0:func.1">+</a> <font color="Maroon" title="c3">a</font>
 ;<br/>


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