<?xml version="1.0"?>
<div class="add">

<b>let </b><font color="Maroon" title="c4">f1</font>, <font color="Maroon" title="c5">f2</font> be    <a href="cat_1.html#M1" title="CAT_1:mode.1">Morphism</a> of <font color="Maroon" title="c2">a</font>,<font color="Maroon" title="c3">b</font>;<br/>

<b>consider </b><font color="Maroon" title="c6">f</font> being    <a href="cat_1.html#M1" title="CAT_1:mode.1">Morphism</a> of <font color="Maroon" title="c2">a</font>,<font color="Maroon" title="c3">b</font><b> such that </b><br/><a NAME="E2:49_1_1"/><i><font color="Green" title="E28">A2</font></i>: 
for <font color="Olive" title="b1">g</font> being   <a href="cat_1.html#M1" title="CAT_1:mode.1">Morphism</a> of <font color="Maroon" title="c2">a</font>,<font color="Maroon" title="c3">b</font> holds  <font color="Maroon" title="c6">f</font> <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a> <font color="Olive" title="b1">g</font>
 <b>by </b><i><a class="txt" href="cat_3.html#E1:49"><i><font color="Green" title="E27">A1</font></i></a>, <a class="ref" href="cat_1.html#D16" title="CAT_1:def.16">CAT_1:def 16</a></i>;<br/>
<b>thus </b><font color="Maroon" title="c4">f1</font> = 
<font color="Maroon" title="c6">f</font>
<b>by </b><i><a class="txt" href="cat_3.html#E2:49_1_1"><i><font color="Green" title="E28">A2</font></i></a></i>
<br/>.= 
<font color="Maroon" title="c5">f2</font>
<b>by </b><i><a class="txt" href="cat_3.html#E2:49_1_1"><i><font color="Green" title="E28">A2</font></i></a></i>
;<br/>


</div>
