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<b>consider </b><font color="Maroon">fs1</font> being    <a href="hidden.html#M1">set</a> <b> such that </b><br/><a NAME="E2:121_1_1"/><i><font color="Green">E29</font></i>: 
<font color="Maroon">fs1</font> <a href="hidden.html#R2">in</a> <font color="Maroon">R1</font>
 <b>by </b><i><a class="ref" href="xboole_0.html#D1">XBOOLE_0:def 1</a></i>;<br/>
<b>consider </b><font color="Maroon">fs2</font> being    <a href="hidden.html#M1">set</a> <b> such that </b><br/><a NAME="E4:121_1_1"/><i><font color="Green">E30</font></i>: 
<font color="Maroon">fs2</font> <a href="hidden.html#R2">in</a> <font color="Maroon">R2</font>
 <b>by </b><i><a class="ref" href="xboole_0.html#D1">XBOOLE_0:def 1</a></i>;<br/>
<b>reconsider </b><font color="Maroon">fs1</font> = <font color="Maroon">fs1</font>, <font color="Maroon">fs2</font> = <font color="Maroon">fs2</font> as   <a href="pnproc_1.html#NM5">firing-sequence</a> of <font color="Maroon">N</font> <b>by </b><i><a class="ref" href="pnproc_1.html#T14" target="_self">Th14</a>, <a class="ref" href="pnproc_1.html#D5" target="_self">Def5</a></i>;<br/>
<b>reconsider </b><font color="Maroon">C</font> = <font color="Maroon">fs1</font> <a href="lang1.html#K1">^</a> <font color="Maroon">fs2</font> as   <a href="pnproc_1.html#NM5">firing-sequence</a> of <font color="Maroon">N</font> ;<br/>
<a NAME="E7:121_1_1"/><i><font color="Green">E35</font></i>: 
<font color="Maroon">C</font> <a href="hidden.html#R1">=</a> <font color="Maroon">fs1</font> <a href="xboole_0.html#K2">\/</a> <span class="p1">(<span class="default"><span class="p2">(<span class="default"><a href="finseq_1.html#K3">len</a> <font color="Maroon">fs1</font></span>)</span> <a href="pnproc_1.html#K14" target="_self">Shift</a> <font color="Maroon">fs2</font></span>)</span>
 
<b>by </b><i/>;<br/>
<a NAME="E8:121_1_1"/><i><font color="Green">E37</font></i>: 
<font color="Maroon">fs1</font> <a href="xboole_0.html#R1">misses</a> <span class="p1">(<span class="default"><a href="finseq_1.html#K3">len</a> <font color="Maroon">fs1</font></span>)</span> <a href="pnproc_1.html#K14" target="_self">Shift</a> <font color="Maroon">fs2</font>
 
<b>by </b><i><a class="ref" href="pnproc_1.html#T12" target="_self">Th12</a></i>;<br/>
<a NAME="E9:121_1_1"/><i><font color="Green">E38</font></i>: 
<font color="Maroon">fs1</font> <a href="hidden.html#R1">=</a>  <a href="finseq_1.html#K15">Seq</a> <font color="Maroon">fs1</font>
 
<b>by </b><i><a class="ref" href="graph_2.html#T24">GRAPH_2:24</a></i>;<br/>
<a NAME="E10:121_1_1"/>
 <a href="finseq_1.html#K15">Seq</a> <span class="p1">(<span class="default"><span class="p2">(<span class="default"><a href="finseq_1.html#K3">len</a> <font color="Maroon">fs1</font></span>)</span> <a href="pnproc_1.html#K14" target="_self">Shift</a> <font color="Maroon">fs2</font></span>)</span> <a href="hidden.html#R2">in</a> <font color="Maroon">R2</font>
 
<b>by </b><i><a class="ref" href="pnproc_1.html#D5" target="_self">Def5</a>, </i>;<br/>
<a NAME="E11:121_1_1"/><b>then </b>
<font color="Maroon">C</font> <a href="hidden.html#R2">in</a> <font color="Maroon">R1</font> <a href="pnproc_1.html#K13" target="_self">concur</a> <font color="Maroon">R2</font>
 
<b>by </b><i><a class="ref" href="pnproc_1.html#T14" target="_self">Th14</a>, , , <a class="ref" href="pnproc_1.html#D6" target="_self">Def6</a></i>;<br/>
<b>hence </b><a NAME="E12:121_1_1"/>
not <font color="Maroon">R1</font> <a href="pnproc_1.html#K13" target="_self">concur</a> <font color="Maroon">R2</font> is <a href="xboole_0.html#V1">empty</a>
 ;<br/>


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