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<b>let </b><font color="Maroon">A</font> be   <a href="cat_1.html#NM4">Category</a>;<br/><b>let </b><font color="Maroon">B</font> be   <a href="cat_1.html#NM4">Category</a>;<br/><b>let </b><font color="Maroon">C</font> be   <a href="cat_1.html#NM4">Category</a>;<br/><b>let </b><font color="Maroon">F</font> be    <a href="cat_1.html#M2">Functor</a> of <font color="Maroon">A</font>,<font color="Maroon">B</font>;<br/><b>let </b><font color="Maroon">G</font> be    <a href="cat_1.html#M2">Functor</a> of <font color="Maroon">A</font>,<font color="Maroon">C</font>;<br/>









<b>thus </b> <a href="isocat_2.html#K11" target="_self">Pr1</a> <span class="p1"><a href="isocat_2.html#K10" target="_self">&lt;:</a><span class="default"><font color="Maroon">F</font>,<font color="Maroon">G</font></span><a href="isocat_2.html#K10" target="_self">:&gt;</a></span> = 
<span class="p1">(<span class="default"><a href="funct_3.html#K9">pr1</a> the <a href="cat_1.html#U2">Morphisms</a> of <font color="Maroon">B</font>,the <a href="cat_1.html#U2">Morphisms</a> of <font color="Maroon">C</font></span>)</span> <a href="partfun1.html#K1">*</a> <span class="p1"><a href="isocat_2.html#K10" target="_self">&lt;:</a><span class="default"><font color="Maroon">F</font>,<font color="Maroon">G</font></span><a href="isocat_2.html#K10" target="_self">:&gt;</a></span>
<b>by </b><i><a class="ref" href="cat_2.html#D10">CAT_2:def 10</a></i>
<br/>.= 
<font color="Maroon">F</font>
<b>by </b><i><a class="ref" href="funct_3.html#T82">FUNCT_3:82</a></i>
;<br/>

<b>thus </b> <a href="isocat_2.html#K12" target="_self">Pr2</a> <span class="p1"><a href="isocat_2.html#K10" target="_self">&lt;:</a><span class="default"><font color="Maroon">F</font>,<font color="Maroon">G</font></span><a href="isocat_2.html#K10" target="_self">:&gt;</a></span> = 
<span class="p1">(<span class="default"><a href="funct_3.html#K10">pr2</a> the <a href="cat_1.html#U2">Morphisms</a> of <font color="Maroon">B</font>,the <a href="cat_1.html#U2">Morphisms</a> of <font color="Maroon">C</font></span>)</span> <a href="partfun1.html#K1">*</a> <span class="p1"><a href="isocat_2.html#K10" target="_self">&lt;:</a><span class="default"><font color="Maroon">F</font>,<font color="Maroon">G</font></span><a href="isocat_2.html#K10" target="_self">:&gt;</a></span>
<b>by </b><i><a class="ref" href="cat_2.html#D11">CAT_2:def 11</a></i>
<br/>.= 
<font color="Maroon">G</font>
<b>by </b><i><a class="ref" href="funct_3.html#T82">FUNCT_3:82</a></i>
;<br/>


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