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<b>let </b><font color="Maroon">c<sub>1</sub></font> be    <a href="subset_1.html#M1">Element</a> of  <a href="circcomb.html#K10">BOOLEAN</a> ;<br/>

<b>thus </b><a NAME="E1:7"/>
<a href="gfacirc1.html#K2" target="_self">buf1</a>  <a href="funct_1.html#K1">.</a> <span class="p1"><a href="facirc_1.html#K5">&lt;*</a><span class="default"><font color="Maroon">c<sub>1</sub></font></span><a href="facirc_1.html#K5">*&gt;</a></span> <a href="hidden.html#R1">=</a> <font color="Maroon">c<sub>1</sub></font>
 <b>by </b><i><a class="ref" href="gfacirc1.html#D2" target="_self">Def2</a></i>;<br/>

<b>thus </b><a href="gfacirc1.html#K2" target="_self">buf1</a>  <a href="funct_1.html#K1">.</a> <span class="p1"><a href="facirc_1.html#K5">&lt;*</a><span class="default"><font color="Maroon">c<sub>1</sub></font></span><a href="facirc_1.html#K5">*&gt;</a></span> = 
<font color="Maroon">c<sub>1</sub></font>
<b>by </b><i><a class="ref" href="gfacirc1.html#D2" target="_self">Def2</a></i>
<br/>.= 
<font color="Maroon">c<sub>1</sub></font> <a href="margrel1.html#K12">'&amp;'</a> <font color="Maroon">c<sub>1</sub></font>
<b>by </b><i><a class="ref" href="binarith.html#T16">BINARITH:16</a></i>
<br/>.= 
<a href="twoscomp.html#K2">and2</a>  <a href="funct_1.html#K1">.</a> <span class="p1"><a href="facirc_1.html#K6">&lt;*</a><span class="default"><font color="Maroon">c<sub>1</sub></font>,<font color="Maroon">c<sub>1</sub></font></span><a href="facirc_1.html#K6">*&gt;</a></span>
<b>by </b><i><a class="ref" href="twoscomp.html#D1">TWOSCOMP:def 1</a></i>
;<br/>

<b>thus </b><a NAME="E3:7"/>
<a href="gfacirc1.html#K2" target="_self">buf1</a>  <a href="funct_1.html#K1">.</a> <span class="p1"><a href="facirc_1.html#K5">&lt;*</a><span class="default">0</span><a href="facirc_1.html#K5">*&gt;</a></span> <a href="hidden.html#R1">=</a> 0
 <b>by </b><i><a class="ref" href="gfacirc1.html#D2" target="_self">Def2</a>, <a class="ref" href="margrel1.html#T36">MARGREL1:36</a></i>;<br/>

<b>thus </b><a NAME="E4:7"/>
<a href="gfacirc1.html#K2" target="_self">buf1</a>  <a href="funct_1.html#K1">.</a> <span class="p1"><a href="facirc_1.html#K5">&lt;*</a><span class="default">1</span><a href="facirc_1.html#K5">*&gt;</a></span> <a href="hidden.html#R1">=</a> 1
 <b>by </b><i><a class="ref" href="gfacirc1.html#D2" target="_self">Def2</a>, <a class="ref" href="margrel1.html#T36">MARGREL1:36</a></i>;<br/>


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