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<b>consider </b><font color="Maroon">c<sub>1</sub></font> being  non <a href="xboole_0.html#V1">empty</a>  <a href="hidden.html#M1">set</a> ;<br/>
<b>reconsider </b><font color="Maroon">c<sub>2</sub></font> =  <a href="partfun1.html#K6">id</a> <font color="Maroon">c<sub>1</sub></font> as   <a href="relset_1.html#NM3">Relation</a> of <font color="Maroon">c<sub>1</sub></font> ;<br/>
<b>reconsider </b><font color="Maroon">c<sub>3</sub></font> = <font color="Maroon">c<sub>2</sub></font> as   <a href="orders_1.html#NM2">Order</a> of <font color="Maroon">c<sub>1</sub></font> ;<br/>
<b>take </b>
 <a href="orders_2.html#G1">RelStr</a>(# <font color="Maroon">c<sub>1</sub></font>,<font color="Maroon">c<sub>3</sub></font> #)
;<br/>

<b>thus </b><a NAME="E4:2_1_1"/>
(  <a href="orders_2.html#G1">RelStr</a>(# <font color="Maroon">c<sub>1</sub></font>,<font color="Maroon">c<sub>3</sub></font> #) is <a href="orders_2.html#V1">strict</a> &amp;  <a href="orders_2.html#G1">RelStr</a>(# <font color="Maroon">c<sub>1</sub></font>,<font color="Maroon">c<sub>3</sub></font> #) is <a href="orders_3.html#V1" target="_self">discrete</a> &amp; not  <a href="orders_2.html#G1">RelStr</a>(# <font color="Maroon">c<sub>1</sub></font>,<font color="Maroon">c<sub>3</sub></font> #) is <a href="struct_0.html#V3">empty</a> )
 <b>by </b><i><a class="ref" href="orders_3.html#D1" target="_self">Def1</a></i>;<br/>


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