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<b>let </b><font color="Maroon">A</font> be    <a href="orders_2.html#L1">RelStr</a> ;<br/>

<b>assume </b><a NAME="E1:9"/>
<font color="Maroon">A</font> is <a href="orders_3.html#V1">discrete</a>
 ;<br/>

<a NAME="E2:9"/><b>then </b>
the <a href="orders_2.html#U1">InternalRel</a> of <font color="Maroon">A</font> <a href="hidden.html#R1">=</a>  <a href="partfun1.html#K6">id</a> the <a href="struct_0.html#U1">carrier</a> of <font color="Maroon">A</font>
 
<b>by </b><i><a class="ref" href="orders_3.html#D1">ORDERS_3:def 1</a></i>;<br/>
<b>hence </b><a NAME="E3:9"/>
<font color="Maroon">A</font> is <a href="roughs_1.html#V1" target="_self">diagonal</a>
 <b>by </b><i/>;<br/>


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