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<b>consider </b><font color="Maroon" title="c3">P</font> being   <a href="pcs_0.html#NM1" title="PCS_0:NM.1">pcs</a>;<br/>
<b>take </b>
0 <a href="pre_circ.html#K2" title="PRE_CIRC:func.2">--&gt;</a> <font color="Maroon" title="c3">P</font>
;<br/>

<b>thus </b><a NAME="E2:109_1_1"/>
( 0 <a href="pre_circ.html#K2" title="PRE_CIRC:func.2">--&gt;</a> <font color="Maroon" title="c3">P</font> is <a href="pcs_0.html#V20" title="PCS_0:attr.20">pcs-chain-like</a> &amp; 0 <a href="pre_circ.html#K2" title="PRE_CIRC:func.2">--&gt;</a> <font color="Maroon" title="c3">P</font> is <a href="pcs_0.html#V17" title="PCS_0:attr.17">pcs-yielding</a> )
 ;<br/>


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