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<b>let </b><font color="Maroon">x</font> be    <a href="hidden.html#M1">set</a> , <font color="Maroon">y</font> be    <a href="hidden.html#M1">set</a> , <font color="Maroon">z</font> be    <a href="hidden.html#M1">set</a> ;<br/>

<b>set </b><font color="Maroon">S2</font> =  <a href="gfacirc1.html#K34" target="_self">GFA2AdderStr</a> <font color="Maroon">x</font>,<font color="Maroon">y</font>,<font color="Maroon">z</font>;<br/>
<b>set </b><font color="Maroon">A2</font> =  <a href="gfacirc1.html#K36" target="_self">GFA2AdderOutput</a> <font color="Maroon">x</font>,<font color="Maroon">y</font>,<font color="Maroon">z</font>;<br/>
<b>set </b><font color="Maroon">S1</font> =  <a href="gfacirc1.html#K22" target="_self">GFA1AdderStr</a> <font color="Maroon">x</font>,<font color="Maroon">y</font>,<font color="Maroon">z</font>;<br/>
<b>set </b><font color="Maroon">A1</font> =  <a href="gfacirc1.html#K24" target="_self">GFA1AdderOutput</a> <font color="Maroon">x</font>,<font color="Maroon">y</font>,<font color="Maroon">z</font>;<br/>
<a NAME="E1:125"/>
(  <a href="gfacirc1.html#K34" target="_self">GFA2AdderStr</a> <font color="Maroon">x</font>,<font color="Maroon">y</font>,<font color="Maroon">z</font> <a href="hidden.html#R1">=</a>  <a href="gfacirc1.html#K22" target="_self">GFA1AdderStr</a> <font color="Maroon">x</font>,<font color="Maroon">y</font>,<font color="Maroon">z</font> &amp;  <a href="gfacirc1.html#K36" target="_self">GFA2AdderOutput</a> <font color="Maroon">x</font>,<font color="Maroon">y</font>,<font color="Maroon">z</font> <a href="hidden.html#R1">=</a>  <a href="gfacirc1.html#K24" target="_self">GFA1AdderOutput</a> <font color="Maroon">x</font>,<font color="Maroon">y</font>,<font color="Maroon">z</font> )
 
;<br/>
<b>hence </b><a NAME="E2:125"/>
 <a href="msafree2.html#K4">InnerVertices</a> <span class="p1">(<span class="default"><a href="gfacirc1.html#K34" target="_self">GFA2AdderStr</a> <font color="Maroon">x</font>,<font color="Maroon">y</font>,<font color="Maroon">z</font></span>)</span> <a href="hidden.html#R1">=</a> <span class="p1"><a href="tarski.html#K1">{</a><span class="default"><span class="p2"><a href="tarski.html#K4">[</a><span class="default"><span class="p3"><a href="facirc_1.html#K6">&lt;*</a><span class="default"><font color="Maroon">x</font>,<font color="Maroon">y</font></span><a href="facirc_1.html#K6">*&gt;</a></span>,<a href="gfacirc1.html#K4" target="_self">xor2c</a> </span><a href="tarski.html#K4">]</a></span></span><a href="tarski.html#K1">}</a></span> <a href="xboole_0.html#K2">\/</a> <span class="p1"><a href="tarski.html#K1">{</a><span class="default"><span class="p2">(<span class="default"><a href="gfacirc1.html#K36" target="_self">GFA2AdderOutput</a> <font color="Maroon">x</font>,<font color="Maroon">y</font>,<font color="Maroon">z</font></span>)</span></span><a href="tarski.html#K1">}</a></span>
 <b>by </b><i><a class="txt" href="gfacirc1.html#E17"><i><font color="Green">Lemma49</font></i></a></i>;<br/>


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