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<b>consider </b><font color="Maroon">p</font> being  non <a href="xboole_0.html#V1">empty</a> <a href="trees_3.html#V4" target="_self">Tree-yielding</a> <a href="trees_3.html#V5" target="_self">FinTree-yielding</a> <a href="finseq_1.html#NM1">FinSequence</a>;<br/>
<b>take </b>
<font color="Maroon">p</font>
;<br/>

<b>thus </b><a NAME="E2:68_1_1"/>
( <font color="Maroon">p</font> is <a href="trees_3.html#V4" target="_self">Tree-yielding</a> &amp; <font color="Maroon">p</font> is <a href="trees_3.html#V5" target="_self">FinTree-yielding</a> &amp; not <font color="Maroon">p</font> is <a href="xboole_0.html#V1">empty</a> )
 ;<br/>


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