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<b>let </b><font color="Maroon">p1</font> be   <a href="polynom1.html#NM3">Series</a> of <font color="Maroon">X</font>,<font color="Maroon">L</font>, <font color="Maroon">p2</font> be   <a href="polynom1.html#NM3">Series</a> of <font color="Maroon">X</font>,<font color="Maroon">L</font>;<br/>

<b>assume </b><b>that </b><br/><a NAME="E1:51_1_2"/><i><font color="Green">E28</font></i>: 
for <font color="Olive">b</font> being  <a href="polynom1.html#NM1">bag</a> of <font color="Maroon">X</font> holds  <font color="Maroon">p1</font> <a href="polynom1.html#K15">.</a> <font color="Olive">b</font> <a href="hidden.html#R1">=</a> <font color="Maroon">a</font> <a href="group_1.html#K1">*</a> <span class="p1">(<span class="default"><font color="Maroon">p</font> <a href="polynom1.html#K15">.</a> <font color="Olive">b</font></span>)</span>
 <b>and </b><br/><a NAME="E2:51_1_2"/><i><font color="Green">E32</font></i>: 
for <font color="Olive">b</font> being  <a href="polynom1.html#NM1">bag</a> of <font color="Maroon">X</font> holds  <font color="Maroon">p2</font> <a href="polynom1.html#K15">.</a> <font color="Olive">b</font> <a href="hidden.html#R1">=</a> <font color="Maroon">a</font> <a href="group_1.html#K1">*</a> <span class="p1">(<span class="default"><font color="Maroon">p</font> <a href="polynom1.html#K15">.</a> <font color="Olive">b</font></span>)</span>
 ;<br/>

<div><a class="txt" onclick="hs2(this)" href="javascript:()" title="51_1_2_1"><b>now </b></a><div class="add"><b>let </b><font color="Maroon">b</font> be    <a href="polynom1.html#M1">Element</a> of  <a href="polynom1.html#K14">Bags</a> <font color="Maroon">X</font>;<br/><b>reconsider </b><font color="Maroon">b'</font> = <font color="Maroon">b</font> as   <a href="polynom1.html#NM1">bag</a> of <font color="Maroon">X</font> ;<br/><b>thus </b><font color="Maroon">p1</font> <a href="polynom1.html#K15">.</a> <font color="Maroon">b</font> = 
<font color="Maroon">a</font> <a href="group_1.html#K1">*</a> <span class="p1">(<span class="default"><font color="Maroon">p</font> <a href="polynom1.html#K15">.</a> <font color="Maroon">b'</font></span>)</span>
<b>by </b><i/>
<br/>.= 
<font color="Maroon">p2</font> <a href="polynom1.html#K15">.</a> <font color="Maroon">b</font>
<b>by </b><i/>
;<br/></div><b>end;</b></div>
<b>hence </b><a NAME="E4:51_1_2"/>
<font color="Maroon">p1</font> <a href="funct_2.html#R2">=</a> <font color="Maroon">p2</font>
 <b>by </b><i><a class="ref" href="funct_2.html#T113">FUNCT_2:113</a></i>;<br/>


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