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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">p</font>, <font color="Maroon" title="c3">a</font> be   <a href="struct_0.html#NM1" title="STRUCT_0:NM.1">Element</a> of <font color="Maroon" title="c1">AFV</font>;<br/>





<a NAME="E1:35"/>
 <a href="afvect0.html#R2" title="AFVECT0:pred.2">Mid</a> <font color="Maroon" title="c3">a</font>,<font color="Maroon" title="c2">p</font>, <a href="afvect0.html#K1" title="AFVECT0:func.1">PSym</a> <font color="Maroon" title="c2">p</font>,<font color="Maroon" title="c3">a</font>
 
<b>by </b><i><a class="ref" href="afvect0.html#D4" target="_self" title="AFVECT0:def.4">Def4</a></i>;<br/>
<a NAME="E2:35"/><b>then </b>
 <a href="afvect0.html#R2" title="AFVECT0:pred.2">Mid</a>  <a href="afvect0.html#K1" title="AFVECT0:func.1">PSym</a> <font color="Maroon" title="c2">p</font>,<font color="Maroon" title="c3">a</font>,<font color="Maroon" title="c2">p</font>,<font color="Maroon" title="c3">a</font>
 
<b>by </b><i><a class="ref" href="afvect0.html#T21" target="_self" title="AFVECT0:th.21">Th21</a></i>;<br/>
<b>hence </b><a NAME="E3:35"/>
 <a href="afvect0.html#K1" title="AFVECT0:func.1">PSym</a> <font color="Maroon" title="c2">p</font>,<span class="p1">(<span class="default"><a href="afvect0.html#K1" title="AFVECT0:func.1">PSym</a> <font color="Maroon" title="c2">p</font>,<font color="Maroon" title="c3">a</font></span>)</span> <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a> <font color="Maroon" title="c3">a</font>
 <b>by </b><i><a class="ref" href="afvect0.html#D4" target="_self" title="AFVECT0:def.4">Def4</a></i>;<br/>


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