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<b>let </b><font color="Maroon" title="c1">x</font>, <font color="Maroon" title="c2">y</font>, <font color="Maroon" title="c3">c</font> be  non <a href="facirc_1.html#V1" title="FACIRC_1:attr.1">pair</a>  <a href="hidden.html#M1" title="HIDDEN:mode.1">set</a> ;<br/><b>let </b><font color="Maroon" title="c4">s</font> be   <a href="circuit1.html#NM3" title="CIRCUIT1:NM.3">State</a> of <span class="p1">(<span class="default"><a href="fscirc_1.html#K7" title="FSCIRC_1:func.7">BorrowCirc</a> <font color="Maroon" title="c1">x</font>,<font color="Maroon" title="c2">y</font>,<font color="Maroon" title="c3">c</font></span>)</span>;<br/>



<b>reconsider </b><font color="Maroon" title="c5">a</font> = <font color="Maroon" title="c1">x</font> as   <a href="msafree2.html#NM1" title="MSAFREE2:NM.1">Vertex</a> of <span class="p1">(<span class="default"><a href="fscirc_1.html#K4" title="FSCIRC_1:func.4">BorrowStr</a> <font color="Maroon" title="c1">x</font>,<font color="Maroon" title="c2">y</font>,<font color="Maroon" title="c3">c</font></span>)</span> <b>by </b><i><a class="ref" href="fscirc_1.html#T6" target="_self" title="FSCIRC_1:th.6">Th6</a></i>;<br/>
<a NAME="E2:19"/>
<font color="Maroon" title="c4">s</font> <a href="facirc_1.html#K15" title="FACIRC_1:func.15">.</a> <font color="Maroon" title="c5">a</font> is    <a href="subset_1.html#M2" title="SUBSET_1:mode.2">Element</a> of  <a href="circcomb.html#K9" title="CIRCCOMB:func.9">BOOLEAN</a> 
 
;<br/>
<b>hence </b><a NAME="E3:19"/>
for <font color="Olive" title="b1">a2</font>, <font color="Olive" title="b2">a3</font> being   <a href="subset_1.html#M2" title="SUBSET_1:mode.2">Element</a> of  <a href="circcomb.html#K9" title="CIRCCOMB:func.9">BOOLEAN</a>   st <font color="Olive" title="b1">a2</font> <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a> <font color="Maroon" title="c4">s</font> <a href="funct_1.html#K1" title="FUNCT_1:func.1">.</a> <font color="Maroon" title="c2">y</font> &amp; <font color="Olive" title="b2">a3</font> <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a> <font color="Maroon" title="c4">s</font> <a href="funct_1.html#K1" title="FUNCT_1:func.1">.</a> <font color="Maroon" title="c3">c</font> holds <br/><span class="p1">(<span class="default"><a href="circuit2.html#K6" title="CIRCUIT2:func.6">Following</a> <font color="Maroon" title="c4">s</font></span>)</span> <a href="funct_1.html#K1" title="FUNCT_1:func.1">.</a> <span class="p1"><a href="tarski.html#K4" title="TARSKI:func.4">[</a><span class="default"><span class="p2"><a href="facirc_1.html#K6" title="FACIRC_1:func.6">&lt;*</a><span class="default"><font color="Maroon" title="c2">y</font>,<font color="Maroon" title="c3">c</font></span><a href="facirc_1.html#K6" title="FACIRC_1:func.6">*&gt;</a></span>,<a href="twoscomp.html#K2" title="TWOSCOMP:func.2">and2</a> </span><a href="tarski.html#K4" title="TARSKI:func.4">]</a></span> <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a> <font color="Olive" title="b1">a2</font> <a href="margrel1.html#K10" title="MARGREL1:func.10">'&amp;'</a> <font color="Olive" title="b2">a3</font>
 <b>by </b><i><a class="txt" href="fscirc_1.html#E17"><i><font color="Green" title="E7">Lm1</font></i></a></i>;<br/>


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