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<b>let </b><font color="Maroon" title="c1">I</font> be    <a href="hidden.html#M1" title="HIDDEN:mode.1">set</a> ;<br/><b>let </b><font color="Maroon" title="c2">X</font> be    <a href="pboole.html#M1" title="PBOOLE:mode.1">ManySortedSet</a> of <font color="Maroon" title="c1">I</font>;<br/>



<b>thus </b><font color="Maroon" title="c2">X</font> <a href="pboole.html#K5" title="PBOOLE:func.5">\+\</a> <span class="p1">(<span class="default"><a href="pboole.html#K1" title="PBOOLE:func.1">[0]</a> <font color="Maroon" title="c1">I</font></span>)</span> = 
<font color="Maroon" title="c2">X</font> <a href="pboole.html#K2" title="PBOOLE:func.2">\/</a> <span class="p1">(<span class="default"><span class="p2">(<span class="default"><a href="pboole.html#K1" title="PBOOLE:func.1">[0]</a> <font color="Maroon" title="c1">I</font></span>)</span> <a href="pboole.html#K4" title="PBOOLE:func.4">\</a> <font color="Maroon" title="c2">X</font></span>)</span>
<b>by </b><i><a class="ref" href="pboole.html#T65" target="_self" title="PBOOLE:th.65">Th65</a></i>
<br/>.= 
<font color="Maroon" title="c2">X</font> <a href="pboole.html#K2" title="PBOOLE:func.2">\/</a> <span class="p1">(<span class="default"><a href="pboole.html#K1" title="PBOOLE:func.1">[0]</a> <font color="Maroon" title="c1">I</font></span>)</span>
<b>by </b><i><a class="ref" href="pboole.html#T66" target="_self" title="PBOOLE:th.66">Th66</a></i>
<br/>.= 
<font color="Maroon" title="c2">X</font>
<b>by </b><i><a class="ref" href="pboole.html#T53" target="_self" title="PBOOLE:th.53">Th53</a></i>
;<br/>

<b>thus </b><span class="p1">(<span class="default"><a href="pboole.html#K1" title="PBOOLE:func.1">[0]</a> <font color="Maroon" title="c1">I</font></span>)</span> <a href="pboole.html#K5" title="PBOOLE:func.5">\+\</a> <font color="Maroon" title="c2">X</font> = 
<span class="p1">(<span class="default"><a href="pboole.html#K1" title="PBOOLE:func.1">[0]</a> <font color="Maroon" title="c1">I</font></span>)</span> <a href="pboole.html#K2" title="PBOOLE:func.2">\/</a> <span class="p1">(<span class="default"><font color="Maroon" title="c2">X</font> <a href="pboole.html#K4" title="PBOOLE:func.4">\</a> <span class="p2">(<span class="default"><a href="pboole.html#K1" title="PBOOLE:func.1">[0]</a> <font color="Maroon" title="c1">I</font></span>)</span></span>)</span>
<b>by </b><i><a class="ref" href="pboole.html#T66" target="_self" title="PBOOLE:th.66">Th66</a></i>
<br/>.= 
<span class="p1">(<span class="default"><a href="pboole.html#K1" title="PBOOLE:func.1">[0]</a> <font color="Maroon" title="c1">I</font></span>)</span> <a href="pboole.html#K2" title="PBOOLE:func.2">\/</a> <font color="Maroon" title="c2">X</font>
<b>by </b><i><a class="ref" href="pboole.html#T65" target="_self" title="PBOOLE:th.65">Th65</a></i>
<br/>.= 
<font color="Maroon" title="c2">X</font>
<b>by </b><i><a class="ref" href="pboole.html#T53" target="_self" title="PBOOLE:th.53">Th53</a></i>
;<br/>


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