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<b>let </b><font color="Maroon">c<sub>1</sub></font> be   <a href="int_1.html#NM1">Integer</a>;<br/>

<b>assume </b><a NAME="E1:22"/><i><font color="Green">E12</font></i>: 
<a href="scmfsa_1.html#K6" target="_self">SCM+FSA-OK</a>  <a href="funct_1.html#K1">.</a> <font color="Maroon">c<sub>1</sub></font> <a href="hidden.html#R1">=</a>  <a href="scmfsa_1.html#K4" target="_self">SCM+FSA-Instr</a> 
 ;<br/>

<a NAME="E2:22"/><i><font color="Green">E13</font></i>: 
<font color="Maroon">c<sub>1</sub></font> <a href="hidden.html#R2">in</a>  <a href="numbers.html#K4">INT</a> 
 
<b>by </b><i><a class="ref" href="int_1.html#D2">INT_1:def 2</a></i>;<br/>
<div><a class="txt" onclick="hs2(this)" href="javascript:()" title="22_1"><b>now </b></a><div class="add"><b>assume </b><a NAME="E1:22_1"/><i><font color="Green">E14</font></i>: 
<font color="Maroon">c<sub>1</sub></font> <a href="hidden.html#R2">in</a> <span class="p1">(<span class="default"><span class="p2"><a href="tarski.html#K1">{</a><span class="default">0</span><a href="tarski.html#K1">}</a></span> <a href="xboole_0.html#K2">\/</a> <a href="scmfsa_1.html#K1" target="_self">SCM+FSA-Data-Loc</a> </span>)</span> <a href="xboole_0.html#K2">\/</a> <a href="scmfsa_1.html#K2" target="_self">SCM+FSA-Data*-Loc</a> 
 ;<br/><a NAME="E2:22_1"/>
not <font color="Maroon">c<sub>1</sub></font> <a href="hidden.html#R2">in</a>  <a href="scmfsa_1.html#K2" target="_self">SCM+FSA-Data*-Loc</a> 
 <b>by </b><i><a class="txt" href="scmfsa_1.html#E1:22"><i><font color="Green">E12</font></i></a>, <a class="ref" href="scmfsa_1.html#T12" target="_self">Th12</a>, <a class="ref" href="scmfsa_1.html#T13" target="_self">Th13</a></i>;<br/><a NAME="E3:22_1"/><b>then </b><i><font color="Green">E15</font></i>: 
<font color="Maroon">c<sub>1</sub></font> <a href="hidden.html#R2">in</a> <span class="p1"><a href="tarski.html#K1">{</a><span class="default">0</span><a href="tarski.html#K1">}</a></span> <a href="xboole_0.html#K2">\/</a> <a href="scmfsa_1.html#K1" target="_self">SCM+FSA-Data-Loc</a> 
 <b>by </b><i><a class="txt" href="scmfsa_1.html#E1:22_1"><i><font color="Green">E14</font></i></a>, <a class="ref" href="xboole_0.html#D2">XBOOLE_0:def 2</a></i>;<br/><a NAME="E4:22_1"/>
not <font color="Maroon">c<sub>1</sub></font> <a href="hidden.html#R2">in</a>  <a href="scmfsa_1.html#K1" target="_self">SCM+FSA-Data-Loc</a> 
 <b>by </b><i><a class="txt" href="scmfsa_1.html#E1:22"><i><font color="Green">E12</font></i></a>, <a class="ref" href="scmfsa_1.html#T10" target="_self">Th10</a>, <a class="ref" href="scmfsa_1.html#T13" target="_self">Th13</a></i>;<br/><a NAME="E5:22_1"/><b>then </b>
<font color="Maroon">c<sub>1</sub></font> <a href="hidden.html#R2">in</a> <span class="p1"><a href="tarski.html#K1">{</a><span class="default">0</span><a href="tarski.html#K1">}</a></span>
 <b>by </b><i><a class="txt" href="scmfsa_1.html#E3:22_1"><i><font color="Green">E15</font></i></a>, <a class="ref" href="xboole_0.html#D2">XBOOLE_0:def 2</a></i>;<br/><b>hence </b><a NAME="E6:22_1"/>
contradiction
 <b>by </b><i><a class="txt" href="scmfsa_1.html#E1:22"><i><font color="Green">E12</font></i></a>, <a class="ref" href="scmfsa_1.html#T9" target="_self">Th9</a>, <a class="ref" href="scmfsa_1.html#T13" target="_self">Th13</a>, <a class="ref" href="tarski.html#D1">TARSKI:def 1</a></i>;<br/></div><b>end;</b></div>
<b>hence </b><a NAME="E4:22"/>
<font color="Maroon">c<sub>1</sub></font> <a href="hidden.html#R2">in</a>  <a href="scmfsa_1.html#K3" target="_self">SCM+FSA-Instr-Loc</a> 
 <b>by </b><i><a class="txt" href="scmfsa_1.html#E2:22"><i><font color="Green">E13</font></i></a>, <a class="ref" href="scmfsa_1.html#T8" target="_self">Th8</a>, <a class="ref" href="xboole_0.html#D2">XBOOLE_0:def 2</a></i>;<br/>


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