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<b>let </b><font color="Maroon" title="c3">P</font>, <font color="Maroon" title="c4">Q</font> be    <a href="pcs_0.html#L2" title="PCS_0:struct.2">pcs-Str</a> ;<br/><b>let </b><font color="Maroon" title="c5">p</font> be    <a href="hidden.html#M1" title="HIDDEN:mode.1">set</a> ;<br/>



<b>assume </b><a NAME="E1:106"/><i><font color="Green" title="E40">A1</font></i>: 
<font color="Maroon" title="c5">p</font> <a href="hidden.html#R2" title="HIDDEN:pred.2">in</a> the <a href="struct_0.html#U1" title="STRUCT_0:sel.1">carrier</a> of <font color="Maroon" title="c3">P</font>
 ;<br/>

<b>assume </b><a NAME="E2:106"/>
<font color="Maroon" title="c3">P</font> <a href="pcs_0.html#R3" title="PCS_0:pred.3">c=</a> <font color="Maroon" title="c4">Q</font>
 ;<br/>

<a NAME="E3:106"/><b>then </b>
the <a href="struct_0.html#U1" title="STRUCT_0:sel.1">carrier</a> of <font color="Maroon" title="c3">P</font> <a href="tarski.html#R1" title="TARSKI:pred.1">c=</a> the <a href="struct_0.html#U1" title="STRUCT_0:sel.1">carrier</a> of <font color="Maroon" title="c4">Q</font>
 
<b>by </b><i><a class="ref" href="pcs_0.html#D34" target="_self" title="PCS_0:def.34">Def34</a></i>;<br/>
<b>hence </b><a NAME="E4:106"/>
<font color="Maroon" title="c5">p</font> is   <a href="struct_0.html#NM1" title="STRUCT_0:NM.1">Element</a> of <font color="Maroon" title="c4">Q</font>
 <b>by </b><i><a class="txt" href="pcs_0.html#E1:106"><i><font color="Green" title="E40">A1</font></i></a></i>;<br/>


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