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<b>let </b><font color="Maroon">c<sub>1</sub></font> be   <a href="cat_1.html#NM4">Category</a>;<br/>

<b>thus </b><a NAME="E1:29"/>
the <a href="altcat_1.html#U2">Comp</a> of <span class="p1">(<span class="default"><a href="altcat_2.html#K6" target="_self">Alter</a> <font color="Maroon">c<sub>1</sub></font></span>)</span> is <a href="altcat_1.html#V3">associative</a>
 <b>by </b><i><a class="ref" href="altcat_2.html#T15" target="_self">Th15</a></i>; <i><font color="Red">:: according to </font></i><a class="ref" href="altcat_1.html#D17">ALTCAT_1:def 17</a><br/>


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