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<b>set </b><font color="Maroon">E</font> =  <a href="orders_2.html#G1">RelStr</a>(# <span class="p1"><a href="tarski.html#K1">{</a><span class="default"><a href="xboole_0.html#K1">{}</a> </span><a href="tarski.html#K1">}</a></span>,<span class="p1">(<span class="default"><a href="partfun1.html#K6">id</a> <span class="p2"><a href="tarski.html#K1">{</a><span class="default"><a href="xboole_0.html#K1">{}</a> </span><a href="tarski.html#K1">}</a></span></span>)</span> #);<br/>
<a NAME="E1:25_1_1"/>
 <a href="orders_2.html#G1">RelStr</a>(# <span class="p1"><a href="tarski.html#K1">{</a><span class="default"><a href="xboole_0.html#K1">{}</a> </span><a href="tarski.html#K1">}</a></span>,<span class="p1">(<span class="default"><a href="partfun1.html#K6">id</a> <span class="p2"><a href="tarski.html#K1">{</a><span class="default"><a href="xboole_0.html#K1">{}</a> </span><a href="tarski.html#K1">}</a></span></span>)</span> #) is <a href="orders_3.html#V1">discrete</a>
 
;<br/>
<b>hence </b><a NAME="E2:25_1_1"/>
 ex <font color="Olive">b<sub>1</sub></font> being   <a href="orders_2.html#L1">RelStr</a>  st <br/>( <font color="Olive">b<sub>1</sub></font> is <a href="orders_3.html#V1">discrete</a> &amp; <font color="Olive">b<sub>1</sub></font> is <a href="group_1.html#V6">finite</a> &amp; <font color="Olive">b<sub>1</sub></font> is <a href="roughs_1.html#V2" target="_self">with_equivalence</a> &amp; not <font color="Olive">b<sub>1</sub></font> is <a href="struct_0.html#V3">empty</a> )
 ;<br/>


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