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<b>consider </b><font color="Maroon">H</font> being   <a href="msualg_3.html#NM1">ManySortedFunction</a> of <font color="Maroon">F<sub>2</sub></font>(),<font color="Maroon">F<sub>3</sub></font>()<b> such that </b><br/><a NAME="E2:10_1"/><i><font color="Green">E51</font></i>: 
<font color="Maroon">H</font> <a href="msualg_3.html#R2">is_epimorphism</a> <font color="Maroon">F<sub>2</sub></font>(),<font color="Maroon">F<sub>3</sub></font>()
 <b>by </b><i/>;<br/>
<a NAME="E3:10_1"/><i><font color="Green">E64</font></i>: 
<font color="Maroon">P<sub>1</sub></font>[ <a href="msualg_4.html#K14">QuotMSAlg</a> <font color="Maroon">F<sub>2</sub></font>(),<span class="p1">(<span class="default"><a href="msualg_4.html#K18">MSCng</a> <font color="Maroon">H</font></span>)</span>]
 
<b>by </b><i>, </i>;<br/>
<a NAME="E4:10_1"/>
 <a href="msualg_4.html#K14">QuotMSAlg</a> <font color="Maroon">F<sub>2</sub></font>(),<span class="p1">(<span class="default"><a href="msualg_4.html#K18">MSCng</a> <font color="Maroon">H</font></span>)</span>,<font color="Maroon">F<sub>3</sub></font>() <a href="msualg_3.html#R6">are_isomorphic</a> 
 
<b>by </b><i>, <a class="ref" href="msualg_4.html#T6">MSUALG_4:6</a></i>;<br/>
<b>hence </b><a NAME="E5:10_1"/>
<font color="Maroon">P<sub>1</sub></font>[<font color="Maroon">F<sub>3</sub></font>()]
 <b>by </b><i>, </i>;<br/>


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