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<b>let </b><font color="Maroon">c<sub>1</sub></font> be    <a href="hidden.html#M1">set</a> ;<br/><b>let </b><font color="Maroon">c<sub>2</sub></font>, <font color="Maroon">c<sub>3</sub></font> be   <a href="polynom1.html#NM1">bag</a> of <font color="Maroon">c<sub>1</sub></font>;<br/>



<a NAME="E1:1"/>
<font color="Maroon">c<sub>3</sub></font> <a href="polynom1.html#R3">divides</a> <font color="Maroon">c<sub>2</sub></font> <a href="polynom1.html#K9">+</a> <font color="Maroon">c<sub>3</sub></font>
 
<b>by </b><i><a class="ref" href="polynom1.html#T54">POLYNOM1:54</a></i>;<br/>
<a NAME="E2:1"/><b>then </b>
<font color="Maroon">c<sub>3</sub></font> <a href="polynom1.html#K9">+</a> <span class="p1">(<span class="default"><span class="p2">(<span class="default"><font color="Maroon">c<sub>2</sub></font> <a href="polynom1.html#K9">+</a> <font color="Maroon">c<sub>3</sub></font></span>)</span> <a href="groeb_2.html#K1">/</a> <font color="Maroon">c<sub>3</sub></font></span>)</span> <a href="hidden.html#R1">=</a> <font color="Maroon">c<sub>2</sub></font> <a href="polynom1.html#K9">+</a> <font color="Maroon">c<sub>3</sub></font>
 
<b>by </b><i><a class="ref" href="groeb_2.html#D1">GROEB_2:def 1</a></i>;<br/>
<a NAME="E3:1"/><b>then </b>
<span class="p1">(<span class="default"><font color="Maroon">c<sub>3</sub></font> <a href="polynom1.html#K9">+</a> <span class="p2">(<span class="default"><span class="p3">(<span class="default"><font color="Maroon">c<sub>2</sub></font> <a href="polynom1.html#K9">+</a> <font color="Maroon">c<sub>3</sub></font></span>)</span> <a href="groeb_2.html#K1">/</a> <font color="Maroon">c<sub>3</sub></font></span>)</span></span>)</span> <a href="polynom1.html#K10">-'</a> <font color="Maroon">c<sub>3</sub></font> <a href="hidden.html#R1">=</a> <font color="Maroon">c<sub>2</sub></font>
 
<b>by </b><i><a class="ref" href="polynom1.html#T52">POLYNOM1:52</a></i>;<br/>
<b>hence </b><a NAME="E4:1"/>
<span class="p1">(<span class="default"><font color="Maroon">c<sub>2</sub></font> <a href="polynom1.html#K9">+</a> <font color="Maroon">c<sub>3</sub></font></span>)</span> <a href="groeb_2.html#K1">/</a> <font color="Maroon">c<sub>3</sub></font> <a href="hidden.html#R1">=</a> <font color="Maroon">c<sub>2</sub></font>
 <b>by </b><i><a class="ref" href="polynom1.html#T52">POLYNOM1:52</a></i>;<br/>


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