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<b>let </b><font color="Maroon">S</font> be  non <a href="struct_0.html#V3">empty</a> non <a href="msualg_1.html#V2">void</a>  <a href="msualg_1.html#L1">ManySortedSign</a> ;<br/><b>let </b><font color="Maroon">A</font> be  <a href="msualg_1.html#V5">non-empty</a>  <a href="msualg_1.html#L3">MSAlgebra</a> of <font color="Maroon">S</font>;<br/><b>let </b><font color="Maroon">R</font> be   <a href="msualg_4.html#NM3">ManySortedRelation</a> of the <a href="msualg_1.html#U4">Sorts</a> of <font color="Maroon">A</font>;<br/>





<a NAME="E1:62"/>
<font color="Maroon">R</font> <a href="pboole.html#R2">c=</a>  <a href="msualg_6.html#K8" target="_self">TRS</a> <font color="Maroon">R</font>
 
<b>by </b><i/>;<br/>
<b>hence </b><a NAME="E2:62"/>
(  <a href="msualg_6.html#K7" target="_self">StabCl</a> <font color="Maroon">R</font> <a href="pboole.html#R2">c=</a>  <a href="msualg_6.html#K8" target="_self">TRS</a> <font color="Maroon">R</font> &amp;  <a href="msualg_6.html#K6" target="_self">InvCl</a> <font color="Maroon">R</font> <a href="pboole.html#R2">c=</a>  <a href="msualg_6.html#K8" target="_self">TRS</a> <font color="Maroon">R</font> )
 <b>by </b><i>, </i>;<br/>

<b>hence </b><a NAME="E3:62"/>
 <a href="msualg_6.html#K7" target="_self">StabCl</a> <span class="p1">(<span class="default"><a href="msualg_6.html#K6" target="_self">InvCl</a> <font color="Maroon">R</font></span>)</span> <a href="pboole.html#R2">c=</a>  <a href="msualg_6.html#K8" target="_self">TRS</a> <font color="Maroon">R</font>
 <b>by </b><i/>;<br/>


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