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<b>let </b><font color="Maroon">F</font> be   <a href="vectsp_1.html#NM2">Field</a>;<br/>

<a NAME="E1:3"/>
for <font color="Olive">a</font>, <font color="Olive">b</font>, <font color="Olive">c</font>, <font color="Olive">d</font>, <font color="Olive">p</font>, <font color="Olive">q</font>, <font color="Olive">r</font>, <font color="Olive">s</font> being  <a href="struct_0.html#NM1">Element</a> of <span class="p1">(<span class="default"><a href="parsp_1.html#K9">MPS</a> <font color="Maroon">F</font></span>)</span> holds <br/> ( <font color="Olive">a</font>,<font color="Olive">b</font> <a href="parsp_1.html#R1">'||'</a> <font color="Olive">b</font>,<font color="Olive">a</font> &amp; <font color="Olive">a</font>,<font color="Olive">b</font> <a href="parsp_1.html#R1">'||'</a> <font color="Olive">c</font>,<font color="Olive">c</font> &amp; ( <font color="Olive">a</font>,<font color="Olive">b</font> <a href="parsp_1.html#R1">'||'</a> <font color="Olive">p</font>,<font color="Olive">q</font> &amp; <font color="Olive">a</font>,<font color="Olive">b</font> <a href="parsp_1.html#R1">'||'</a> <font color="Olive">r</font>,<font color="Olive">s</font> &amp; not <font color="Olive">p</font>,<font color="Olive">q</font> <a href="parsp_1.html#R1">'||'</a> <font color="Olive">r</font>,<font color="Olive">s</font> implies <font color="Olive">a</font> <a href="hidden.html#R1">=</a> <font color="Olive">b</font> ) &amp; ( <font color="Olive">a</font>,<font color="Olive">b</font> <a href="parsp_1.html#R1">'||'</a> <font color="Olive">a</font>,<font color="Olive">c</font> implies <font color="Olive">b</font>,<font color="Olive">a</font> <a href="parsp_1.html#R1">'||'</a> <font color="Olive">b</font>,<font color="Olive">c</font> ) &amp;  ex <font color="Olive">x</font> being  <a href="struct_0.html#NM1">Element</a> of <span class="p1">(<span class="default"><a href="parsp_1.html#K9">MPS</a> <font color="Maroon">F</font></span>)</span> st <br/>( <font color="Olive">a</font>,<font color="Olive">b</font> <a href="parsp_1.html#R1">'||'</a> <font color="Olive">c</font>,<font color="Olive">x</font> &amp; <font color="Olive">a</font>,<font color="Olive">c</font> <a href="parsp_1.html#R1">'||'</a> <font color="Olive">b</font>,<font color="Olive">x</font> ) )
 
<b>by </b><i><a class="ref" href="parsp_1.html#T24">PARSP_1:24</a>, <a class="ref" href="parsp_1.html#T25">PARSP_1:25</a>, <a class="ref" href="parsp_1.html#T26">PARSP_1:26</a>, <a class="ref" href="parsp_1.html#T27">PARSP_1:27</a>, <a class="ref" href="parsp_1.html#T28">PARSP_1:28</a></i>;<br/>
<b>hence </b><a NAME="E2:3"/>
 <a href="parsp_1.html#K9">MPS</a> <font color="Maroon">F</font> is   <a href="parsp_1.html#NM2">ParSp</a>
 <b>by </b><i><a class="ref" href="parsp_1.html#D12">PARSP_1:def 12</a></i>;<br/>


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