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<b>let </b><font color="Maroon" title="c1">D</font> be  non <a href="xboole_0.html#V1" title="XBOOLE_0:attr.1">empty</a>  <a href="hidden.html#M1" title="HIDDEN:mode.1">set</a> ;<br/><b>let </b><font color="Maroon" title="c2">H</font> be    <a href="seqfunc.html#M1" title="SEQFUNC:mode.1">Functional_Sequence</a> of <font color="Maroon" title="c1">D</font>, <a href="numbers.html#K1" title="NUMBERS:func.1">REAL</a> ;<br/>



<b>thus </b> <a href="seqfunc.html#K4" title="SEQFUNC:func.4">-</a> <span class="p1">(<span class="default"><a href="seqfunc.html#K4" title="SEQFUNC:func.4">-</a> <font color="Maroon" title="c2">H</font></span>)</span> = 
<span class="p1">(<span class="default"><a href="real_1.html#K1" title="REAL_1:func.1">-</a> 1</span>)</span> <a href="seqfunc.html#K2" title="SEQFUNC:func.2">(#)</a> <span class="p1">(<span class="default"><a href="seqfunc.html#K4" title="SEQFUNC:func.4">-</a> <font color="Maroon" title="c2">H</font></span>)</span>
<b>by </b><i><a class="ref" href="seqfunc.html#T8" target="_self" title="SEQFUNC:th.8">Th8</a></i>
<br/>.= 
<span class="p1">(<span class="default"><a href="real_1.html#K1" title="REAL_1:func.1">-</a> 1</span>)</span> <a href="seqfunc.html#K2" title="SEQFUNC:func.2">(#)</a> <span class="p1">(<span class="default"><span class="p2">(<span class="default"><a href="real_1.html#K1" title="REAL_1:func.1">-</a> 1</span>)</span> <a href="seqfunc.html#K2" title="SEQFUNC:func.2">(#)</a> <font color="Maroon" title="c2">H</font></span>)</span>
<b>by </b><i><a class="ref" href="seqfunc.html#T8" target="_self" title="SEQFUNC:th.8">Th8</a></i>
<br/>.= 
<span class="p1">(<span class="default"><span class="p2">(<span class="default"><a href="real_1.html#K1" title="REAL_1:func.1">-</a> 1</span>)</span> <a href="real_1.html#K4" title="REAL_1:func.4">*</a> <span class="p2">(<span class="default"><a href="real_1.html#K1" title="REAL_1:func.1">-</a> 1</span>)</span></span>)</span> <a href="seqfunc.html#K2" title="SEQFUNC:func.2">(#)</a> <font color="Maroon" title="c2">H</font>
<b>by </b><i><a class="ref" href="seqfunc.html#T11" target="_self" title="SEQFUNC:th.11">Th11</a></i>
<br/>.= 
<font color="Maroon" title="c2">H</font>
<b>by </b><i><a class="ref" href="seqfunc.html#T12" target="_self" title="SEQFUNC:th.12">Th12</a></i>
;<br/>


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