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<b>thus </b><a NAME="E1:27_2_1"/>
<font color="Maroon">c<sub>1</sub></font> <a href="waybel34.html#K5" target="_self">-SUP_category</a>  is <a href="yellow21.html#V2">lattice-wise</a>
 ; <i><font color="Red">:: according to </font></i><a class="ref" href="yellow21.html#D5">YELLOW21:def 5</a><br/>

<b>let </b><font color="Maroon">c<sub>2</sub></font> be   <a href="altcat_1.html#NM1">object</a> of <span class="p1">(<span class="default"><font color="Maroon">c<sub>1</sub></font> <a href="waybel34.html#K5" target="_self">-SUP_category</a> </span>)</span>;<br/>

<a NAME="E2:27_2_1"/><i><font color="Green">E17</font></i>: 
ex <font color="Olive">b<sub>1</sub></font> being non <a href="xboole_0.html#V1">empty</a>  <a href="hidden.html#M1">set</a>  st <font color="Olive">b<sub>1</sub></font> <a href="hidden.html#R2">in</a> <font color="Maroon">c<sub>1</sub></font>
 
<b>by </b><i><a class="ref" href="setfam_1.html#D11">SETFAM_1:def 11</a></i>;<br/>
<a NAME="E3:27_2_1"/>
<font color="Maroon">c<sub>2</sub></font> <a href="hidden.html#R1">=</a>  <a href="yellow21.html#K3">latt</a> <font color="Maroon">c<sub>2</sub></font>
 
;<br/>
<b>hence </b><a NAME="E4:27_2_1"/>
<font color="Maroon">c<sub>2</sub></font> is    <a href="orders_2.html#L1">RelStr</a> 
 <b>by </b><i><a class="txt" href="waybel34.html#E2:27_2_1"><i><font color="Green">E17</font></i></a>, <a class="ref" href="waybel34.html#D5" target="_self">Def5</a></i>;<br/>


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