<?xml version="1.0"?>
<div class="add">

<b>consider </b><font color="Maroon" title="c3">D</font> being  non <a href="xboole_0.html#V1" title="XBOOLE_0:attr.1">empty</a>  <a href="hidden.html#M1" title="HIDDEN:mode.1">set</a> ;<br/>
<b>take </b><font color="Maroon" title="c4">P</font> =  <a href="pcs_0.html#G1" title="PCS_0:aggr.1">TolStr</a>(# <font color="Maroon" title="c3">D</font>,<span class="p1">(<span class="default"><a href="oposet_1.html#K1" title="OPOSET_1:func.1">{}</a> <font color="Maroon" title="c3">D</font>,<font color="Maroon" title="c3">D</font></span>)</span> #);<br/>

<b>thus </b><a NAME="E2:44_1_1"/>
<font color="Maroon" title="c4">P</font> is <a href="pcs_0.html#V2" title="PCS_0:attr.2">strict</a>
 ;<br/>

<b>thus </b><a NAME="E3:44_1_1"/>
not the <a href="struct_0.html#U1" title="STRUCT_0:sel.1">carrier</a> of <font color="Maroon" title="c4">P</font> is <a href="xboole_0.html#V1" title="XBOOLE_0:attr.1">empty</a>
 ; <i><font color="Red">:: according to </font></i><a class="ref" href="struct_0.html#D1" title="STRUCT_0:def.1">STRUCT_0:def 1</a><br/>

<b>thus </b><a NAME="E4:44_1_1"/>
( <font color="Maroon" title="c4">P</font> is <a href="pcs_0.html#V5" title="PCS_0:attr.5">pcs-tol-irreflexive</a> &amp; <font color="Maroon" title="c4">P</font> is <a href="pcs_0.html#V6" title="PCS_0:attr.6">pcs-tol-symmetric</a> )
 ;<br/>


</div>
