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<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>; <a class="txt" onclick="hs(this)" href="javascript:()"><i><font color="Red">::  thesis: </font></i></a><span class="hide"> <font color="Maroon" title="c4">f1</font> <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a> <font color="Maroon" title="c5">f2</font></span><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="E2:45_1_1"/><i><font color="Green" title="E26">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#E1:45"><i><font color="Green" title="E25">A1</font></i></a>, <a class="ref" href="cat_1.html#D15" title="CAT_1:def.15">CAT_1:def 15</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#E2:45_1_1"><i><font color="Green" title="E26">A2</font></i></a></i>
<br/>.= 
<font color="Maroon" title="c5">f2</font>
<b>by </b><i><a class="txt" href="cat_3.html#E2:45_1_1"><i><font color="Green" title="E26">A2</font></i></a></i>
; <a class="txt" onclick="hs(this)" href="javascript:()"><i><font color="Red">::  thesis: </font></i></a><span class="hide"> verum</span><br/>


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