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<b>let </b><font color="Maroon">c<sub>1</sub></font> be   <a href="nat_1.html#NM1">Nat</a>;<br/><b>let </b><font color="Maroon">c<sub>2</sub></font> be  non <a href="struct_0.html#V3">empty</a> <a href="group_1.html#V4">associative</a>  <a href="group_1.html#L1">HGrStr</a> ;<br/><b>let </b><font color="Maroon">c<sub>3</sub></font>, <font color="Maroon">c<sub>4</sub></font>, <font color="Maroon">c<sub>5</sub></font> be    <a href="finseq_2.html#M2">Element</a> of <font color="Maroon">c<sub>1</sub></font> <a href="finseq_2.html#K4">-tuples_on</a> the <a href="struct_0.html#U1">carrier</a> of <font color="Maroon">c<sub>2</sub></font>;<br/>





<a NAME="E1:84"/><i><font color="Green">E44</font></i>: 
the <a href="group_1.html#U1">mult</a> of <font color="Maroon">c<sub>2</sub></font> is <a href="binop_1.html#V2">associative</a>
 
<b>by </b><i><a class="ref" href="group_1.html#T31">GROUP_1:31</a></i>;<br/>
<b>thus </b> <a href="fvsum_1.html#K12" target="_self">mlt</a> <font color="Maroon">c<sub>3</sub></font>,<span class="p1">(<span class="default"><a href="fvsum_1.html#K12" target="_self">mlt</a> <font color="Maroon">c<sub>4</sub></font>,<font color="Maroon">c<sub>5</sub></font></span>)</span> = 
the <a href="group_1.html#U1">mult</a> of <font color="Maroon">c<sub>2</sub></font> <a href="finseqop.html#K1">.:</a> <font color="Maroon">c<sub>3</sub></font>,<span class="p1">(<span class="default"><a href="fvsum_1.html#K12" target="_self">mlt</a> <font color="Maroon">c<sub>4</sub></font>,<font color="Maroon">c<sub>5</sub></font></span>)</span>

<br/>.= 
the <a href="group_1.html#U1">mult</a> of <font color="Maroon">c<sub>2</sub></font> <a href="finseqop.html#K1">.:</a> <font color="Maroon">c<sub>3</sub></font>,<span class="p1">(<span class="default">the <a href="group_1.html#U1">mult</a> of <font color="Maroon">c<sub>2</sub></font> <a href="finseqop.html#K1">.:</a> <font color="Maroon">c<sub>4</sub></font>,<font color="Maroon">c<sub>5</sub></font></span>)</span>

<br/>.= 
the <a href="group_1.html#U1">mult</a> of <font color="Maroon">c<sub>2</sub></font> <a href="finseqop.html#K1">.:</a> <span class="p1">(<span class="default">the <a href="group_1.html#U1">mult</a> of <font color="Maroon">c<sub>2</sub></font> <a href="finseqop.html#K1">.:</a> <font color="Maroon">c<sub>3</sub></font>,<font color="Maroon">c<sub>4</sub></font></span>)</span>,<font color="Maroon">c<sub>5</sub></font>
<b>by </b><i><a class="txt" href="fvsum_1.html#E1:84"><i><font color="Green">E44</font></i></a>, <a class="ref" href="finseqop.html#T29">FINSEQOP:29</a></i>
<br/>.= 
the <a href="group_1.html#U1">mult</a> of <font color="Maroon">c<sub>2</sub></font> <a href="finseqop.html#K1">.:</a> <span class="p1">(<span class="default"><a href="fvsum_1.html#K12" target="_self">mlt</a> <font color="Maroon">c<sub>3</sub></font>,<font color="Maroon">c<sub>4</sub></font></span>)</span>,<font color="Maroon">c<sub>5</sub></font>

<br/>.= 
 <a href="fvsum_1.html#K12" target="_self">mlt</a> <span class="p1">(<span class="default"><a href="fvsum_1.html#K12" target="_self">mlt</a> <font color="Maroon">c<sub>3</sub></font>,<font color="Maroon">c<sub>4</sub></font></span>)</span>,<font color="Maroon">c<sub>5</sub></font>

;<br/>


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