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<b>let </b><font color="Maroon">A</font> be  non <a href="struct_0.html#V3">empty</a>  <a href="altcat_1.html#L2">AltCatStr</a> , <font color="Maroon">B</font> be  non <a href="struct_0.html#V3">empty</a>  <a href="altcat_1.html#L2">AltCatStr</a> ;<br/>

<b>assume </b><a NAME="E1:25"/>
the <a href="struct_0.html#U1">carrier</a> of <font color="Maroon">A</font> <a href="hidden.html#R1">=</a> the <a href="struct_0.html#U1">carrier</a> of <font color="Maroon">B</font>
 ; <i><font color="Red">:: according to </font></i><a class="ref" href="yellow18.html#D3" target="_self">YELLOW18:def 3</a><br/>

<b>hence </b><a NAME="E2:25"/>
(  not the <a href="altcat_1.html#U1">Arrows</a> of <font color="Maroon">B</font> <a href="hidden.html#R1">=</a>  <a href="altcat_2.html#K1">~</a> the <a href="altcat_1.html#U1">Arrows</a> of <font color="Maroon">A</font> or  ex <font color="Olive">a</font>, <font color="Olive">b</font>, <font color="Olive">c</font> being  <a href="altcat_1.html#NM1">object</a> of <font color="Maroon">A</font> ex <font color="Olive">a'</font>, <font color="Olive">b'</font>, <font color="Olive">c'</font> being  <a href="altcat_1.html#NM1">object</a> of <font color="Maroon">B</font> st <br/>( <font color="Olive">a'</font> <a href="hidden.html#R1">=</a> <font color="Olive">a</font> &amp; <font color="Olive">b'</font> <a href="hidden.html#R1">=</a> <font color="Olive">b</font> &amp; <font color="Olive">c'</font> <a href="hidden.html#R1">=</a> <font color="Olive">c</font> &amp; not the <a href="altcat_1.html#U2">Comp</a> of <font color="Maroon">B</font> <a href="altcat_1.html#K4">.</a> <font color="Olive">a'</font>,<font color="Olive">b'</font>,<font color="Olive">c'</font> <a href="hidden.html#R1">=</a>  <a href="functor0.html#K1">~</a> <span class="p1">(<span class="default">the <a href="altcat_1.html#U2">Comp</a> of <font color="Maroon">A</font> <a href="altcat_1.html#K4">.</a> <font color="Olive">c</font>,<font color="Olive">b</font>,<font color="Olive">a</font></span>)</span> ) or for <font color="Olive">a</font> being  <a href="altcat_1.html#NM1">object</a> of <font color="Maroon">A</font> holds  <font color="Olive">a</font> is   <a href="altcat_1.html#NM1">object</a> of <font color="Maroon">B</font> )
 ;<br/>


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