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<b>let </b><font color="Maroon">c<sub>1</sub></font> be  <a href="scmring1.html#V1">good</a> <a href="funcsdom.html#NM1">Ring</a>;<br/><b>let </b><font color="Maroon">c<sub>2</sub></font> be   <a href="ami_1.html#NM3">Instruction</a> of <span class="p1">(<span class="default"><a href="scmring2.html#K1" target="_self">SCM</a> <font color="Maroon">c<sub>1</sub></font></span>)</span>;<br/>



<b>given </b><font color="Maroon">c<sub>3</sub></font> being   <a href="ami_1.html#NM4">State</a> of <span class="p1">(<span class="default"><a href="scmring2.html#K1" target="_self">SCM</a> <font color="Maroon">c<sub>1</sub></font></span>)</span><b> such that </b><a NAME="E1:30"/><i><font color="Green">E23</font></i>: 
<span class="p1">(<span class="default"><a href="ami_1.html#K4">Exec</a> <font color="Maroon">c<sub>2</sub></font>,<font color="Maroon">c<sub>3</sub></font></span>)</span> <a href="funct_1.html#K1">.</a> <span class="p1">(<span class="default"><a href="ami_1.html#K2">IC</a> <span class="p2">(<span class="default"><a href="scmring2.html#K1" target="_self">SCM</a> <font color="Maroon">c<sub>1</sub></font></span>)</span></span>)</span> <a href="hidden.html#R1">=</a>  <a href="scmring2.html#K11" target="_self">Next</a> <span class="p1">(<span class="default"><a href="ami_1.html#K6">IC</a> <font color="Maroon">c<sub>3</sub></font></span>)</span>
 ;<br/>

<b>assume </b><a NAME="E2:30"/><i><font color="Green">E24</font></i>: 
<font color="Maroon">c<sub>2</sub></font> is <a href="ami_1.html#V3">halting</a>
 ;<br/>

<b>reconsider </b><font color="Maroon">c<sub>4</sub></font> = <font color="Maroon">c<sub>3</sub></font> as   <a href="scmring1.html#NM1">SCM-State</a> of <font color="Maroon">c<sub>1</sub></font> <b>by </b><i><a class="ref" href="scmring2.html#D1" target="_self">Def1</a></i>;<br/>
<a NAME="E4:30"/><i><font color="Green">E25</font></i>: 
 <a href="scmring1.html#K3">IC</a> <font color="Maroon">c<sub>4</sub></font> <a href="hidden.html#R1">=</a>  <a href="ami_1.html#K6">IC</a> <font color="Maroon">c<sub>3</sub></font>
 
<b>by </b><i><a class="ref" href="scmring2.html#T10" target="_self">Th10</a></i>;<br/>
<a NAME="E5:30"/><i><font color="Green">E26</font></i>: 
 <a href="scmring1.html#K3">IC</a> <font color="Maroon">c<sub>4</sub></font> <a href="hidden.html#R1">=</a> <font color="Maroon">c<sub>4</sub></font> <a href="funct_1.html#K1">.</a> 0
 
<b>by </b><i><a class="ref" href="scmring1.html#D4">SCMRING1:def 4</a></i>;<br/>
<i><font color="Green">E27</font></i>: <span class="p1">(<span class="default"><a href="ami_1.html#K4">Exec</a> <font color="Maroon">c<sub>2</sub></font>,<font color="Maroon">c<sub>3</sub></font></span>)</span> <a href="funct_1.html#K1">.</a> <span class="p1">(<span class="default"><a href="ami_1.html#K2">IC</a> <span class="p2">(<span class="default"><a href="scmring2.html#K1" target="_self">SCM</a> <font color="Maroon">c<sub>1</sub></font></span>)</span></span>)</span> = 
<font color="Maroon">c<sub>3</sub></font> <a href="funct_1.html#K1">.</a> <span class="p1">(<span class="default"><a href="ami_1.html#K2">IC</a> <span class="p2">(<span class="default"><a href="scmring2.html#K1" target="_self">SCM</a> <font color="Maroon">c<sub>1</sub></font></span>)</span></span>)</span>
<b>by </b><i><a class="txt" href="scmring2.html#E2:30"><i><font color="Green">E24</font></i></a>, <a class="ref" href="ami_1.html#D8">AMI_1:def 8</a></i>
<br/>.= 
 <a href="ami_1.html#K6">IC</a> <font color="Maroon">c<sub>3</sub></font>

<br/>.= 
<font color="Maroon">c<sub>4</sub></font> <a href="funct_1.html#K1">.</a> 0
<b>by </b><i><a class="txt" href="scmring2.html#E4:30"><i><font color="Green">E25</font></i></a>, <a class="ref" href="scmring1.html#D4">SCMRING1:def 4</a></i>
;<br/>
<b>reconsider </b><font color="Maroon">c<sub>5</sub></font> = <font color="Maroon">c<sub>4</sub></font> <a href="funct_1.html#K1">.</a> 0 as   <a href="ami_1.html#NM2">Instruction-Location</a> of <span class="p1">(<span class="default"><a href="scmring2.html#K1" target="_self">SCM</a> <font color="Maroon">c<sub>1</sub></font></span>)</span> <b>by </b><i><a class="txt" href="scmring2.html#E5:30"><i><font color="Green">E26</font></i></a>, <a class="ref" href="scmring2.html#D1" target="_self">Def1</a></i>;<br/>
<b>consider </b><font color="Maroon">c<sub>6</sub></font> being    <a href="subset_1.html#M2">Element</a> of  <a href="ami_2.html#K3">SCM-Instr-Loc</a> <b> such that </b><br/><a NAME="E9:30"/><i><font color="Green">E28</font></i>: 
( <font color="Maroon">c<sub>6</sub></font> <a href="hidden.html#R1">=</a> <font color="Maroon">c<sub>5</sub></font> &amp;  <a href="scmring2.html#K11" target="_self">Next</a> <font color="Maroon">c<sub>5</sub></font> <a href="hidden.html#R1">=</a>  <a href="ami_2.html#K15">Next</a> <font color="Maroon">c<sub>6</sub></font> )
 <b>by </b><i><a class="ref" href="scmring2.html#D10" target="_self">Def10</a></i>;<br/>
<a NAME="E10:30"/><i><font color="Green">E29</font></i>: 
<span class="p1">(<span class="default"><a href="ami_1.html#K4">Exec</a> <font color="Maroon">c<sub>2</sub></font>,<font color="Maroon">c<sub>3</sub></font></span>)</span> <a href="funct_1.html#K1">.</a> <span class="p1">(<span class="default"><a href="ami_1.html#K2">IC</a> <span class="p2">(<span class="default"><a href="scmring2.html#K1" target="_self">SCM</a> <font color="Maroon">c<sub>1</sub></font></span>)</span></span>)</span> <a href="hidden.html#R1">=</a>  <a href="scmring2.html#K11" target="_self">Next</a> <font color="Maroon">c<sub>5</sub></font>
 
<b>by </b><i><a class="txt" href="scmring2.html#E1:30"><i><font color="Green">E23</font></i></a>, <a class="txt" href="scmring2.html#E4:30"><i><font color="Green">E25</font></i></a>, <a class="ref" href="scmring1.html#D4">SCMRING1:def 4</a></i>;<br/>
<a NAME="E11:30"/>
 <a href="scmring2.html#K11" target="_self">Next</a> <font color="Maroon">c<sub>5</sub></font> <a href="hidden.html#R1">=</a> <font color="Maroon">c<sub>6</sub></font> <a href="nat_1.html#K1">+</a> 2
 
<b>by </b><i><a class="txt" href="scmring2.html#E9:30"><i><font color="Green">E28</font></i></a>, <a class="ref" href="ami_2.html#D15">AMI_2:def 15</a></i>;<br/>
<b>hence </b><a NAME="E12:30"/>
contradiction
 <b>by </b><i><a class="txt" href="scmring2.html#E6:30"><i><font color="Green">E27</font></i></a>, <a class="txt" href="scmring2.html#E9:30"><i><font color="Green">E28</font></i></a>, <a class="txt" href="scmring2.html#E10:30"><i><font color="Green">E29</font></i></a></i>;<br/>


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