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<a NAME="E1:8_1"/><i><font color="Green">E2</font></i>: 
( ex <font color="Olive">b<sub>1</sub></font> being   <a href="hidden.html#M1">set</a>  st <font color="Maroon">P<sub>1</sub></font>[<font color="Olive">b<sub>1</sub></font>] or for <font color="Olive">b<sub>1</sub></font> being   <a href="hidden.html#M1">set</a>  holds <font color="Maroon">P<sub>2</sub></font>[<font color="Olive">b<sub>1</sub></font>] )
 
<b>by </b><i><a class="txt" href="schems_1.html#E1:8"><i><font color="Green">E1</font></i></a></i>;<br/>
<a NAME="E2:8_1"/>
ex <font color="Olive">b<sub>1</sub></font> being   <a href="hidden.html#M1">set</a>  st <br/>for <font color="Olive">b<sub>2</sub></font> being   <a href="hidden.html#M1">set</a>  holds <br/>( <font color="Maroon">P<sub>1</sub></font>[<font color="Olive">b<sub>1</sub></font>] or <font color="Maroon">P<sub>2</sub></font>[<font color="Olive">b<sub>2</sub></font>] )
 
<b>from </b><i><a class="ref" href="schems_1.html#S6" target="_self">SCHEMS_1:sch 6</a>(<a class="txt" href="schems_1.html#E1:8_1"><i><font color="Green">E2</font></i></a>);<br/></i>
<b>hence </b><a NAME="E3:8_1"/>
ex <font color="Olive">b<sub>1</sub></font> being   <a href="hidden.html#M1">set</a>  st <br/>for <font color="Olive">b<sub>2</sub></font> being   <a href="hidden.html#M1">set</a>  holds <br/>( <font color="Maroon">P<sub>1</sub></font>[<font color="Olive">b<sub>1</sub></font>] or <font color="Maroon">P<sub>2</sub></font>[<font color="Olive">b<sub>2</sub></font>] )
 ;<br/>


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