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<b>let </b><font color="Maroon" title="c1">M</font> be   <a href="midsp_1.html#NM1" title="MIDSP_1:NM.1">MidSp</a>;<br/><b>let </b><font color="Maroon" title="c2">a</font>, <font color="Maroon" title="c3">b</font> be   <a href="struct_0.html#NM1" title="STRUCT_0:NM.1">Element</a> of <font color="Maroon" title="c1">M</font>;<br/>





<a NAME="E1:53"/>
<span class="p1"><a href="domain_1.html#K1" title="DOMAIN_1:func.1">[</a><span class="default"><font color="Maroon" title="c2">a</font>,<span class="p2">(<span class="default"><font color="Maroon" title="c2">a</font> <a href="midsp_1.html#K4" title="MIDSP_1:func.4">@</a> <font color="Maroon" title="c3">b</font></span>)</span></span><a href="domain_1.html#K1" title="DOMAIN_1:func.1">]</a></span> <a href="midsp_1.html#R2" title="MIDSP_1:pred.2">##</a> <span class="p1"><a href="domain_1.html#K1" title="DOMAIN_1:func.1">[</a><span class="default"><span class="p2">(<span class="default"><font color="Maroon" title="c2">a</font> <a href="midsp_1.html#K4" title="MIDSP_1:func.4">@</a> <font color="Maroon" title="c3">b</font></span>)</span>,<font color="Maroon" title="c3">b</font></span><a href="domain_1.html#K1" title="DOMAIN_1:func.1">]</a></span>
 
<b>by </b><i><a class="ref" href="midsp_1.html#T61" target="_self" title="MIDSP_1:th.61">Th61</a></i>;<br/>
<b>then </b><span class="p1">(<span class="default"><a href="midsp_1.html#K11" title="MIDSP_1:func.11">vect</a> <font color="Maroon" title="c2">a</font>,<span class="p2">(<span class="default"><font color="Maroon" title="c2">a</font> <a href="midsp_1.html#K4" title="MIDSP_1:func.4">@</a> <font color="Maroon" title="c3">b</font></span>)</span></span>)</span> <a href="midsp_1.html#K10" title="MIDSP_1:func.10">+</a> <span class="p1">(<span class="default"><a href="midsp_1.html#K11" title="MIDSP_1:func.11">vect</a> <font color="Maroon" title="c2">a</font>,<span class="p2">(<span class="default"><font color="Maroon" title="c2">a</font> <a href="midsp_1.html#K4" title="MIDSP_1:func.4">@</a> <font color="Maroon" title="c3">b</font></span>)</span></span>)</span> = 
<span class="p1">(<span class="default"><a href="midsp_1.html#K11" title="MIDSP_1:func.11">vect</a> <font color="Maroon" title="c2">a</font>,<span class="p2">(<span class="default"><font color="Maroon" title="c2">a</font> <a href="midsp_1.html#K4" title="MIDSP_1:func.4">@</a> <font color="Maroon" title="c3">b</font></span>)</span></span>)</span> <a href="midsp_1.html#K10" title="MIDSP_1:func.10">+</a> <span class="p1">(<span class="default"><a href="midsp_1.html#K11" title="MIDSP_1:func.11">vect</a> <span class="p2">(<span class="default"><font color="Maroon" title="c2">a</font> <a href="midsp_1.html#K4" title="MIDSP_1:func.4">@</a> <font color="Maroon" title="c3">b</font></span>)</span>,<font color="Maroon" title="c3">b</font></span>)</span>
<b>by </b><i><a class="ref" href="midsp_1.html#T56" target="_self" title="MIDSP_1:th.56">Th56</a></i>
<br/>.= 
 <a href="midsp_1.html#K11" title="MIDSP_1:func.11">vect</a> <font color="Maroon" title="c2">a</font>,<font color="Maroon" title="c3">b</font>
<b>by </b><i><a class="ref" href="midsp_1.html#T60" target="_self" title="MIDSP_1:th.60">Th60</a></i>
;<br/>
<b>hence </b><a NAME="E3:53"/>
<span class="p1">(<span class="default"><a href="midsp_1.html#K11" title="MIDSP_1:func.11">vect</a> <font color="Maroon" title="c2">a</font>,<span class="p2">(<span class="default"><font color="Maroon" title="c2">a</font> <a href="midsp_1.html#K4" title="MIDSP_1:func.4">@</a> <font color="Maroon" title="c3">b</font></span>)</span></span>)</span> <a href="midsp_1.html#K10" title="MIDSP_1:func.10">+</a> <span class="p1">(<span class="default"><a href="midsp_1.html#K11" title="MIDSP_1:func.11">vect</a> <font color="Maroon" title="c2">a</font>,<span class="p2">(<span class="default"><font color="Maroon" title="c2">a</font> <a href="midsp_1.html#K4" title="MIDSP_1:func.4">@</a> <font color="Maroon" title="c3">b</font></span>)</span></span>)</span> <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a>  <a href="midsp_1.html#K11" title="MIDSP_1:func.11">vect</a> <font color="Maroon" title="c2">a</font>,<font color="Maroon" title="c3">b</font>
 ;<br/>


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