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<b>let </b><font color="Maroon">R</font> be   <a href="vectsp_2.html#NM3">Skew-Field</a>;<br/>

<b>reconsider </b><font color="Maroon">e</font> =  <a href="group_1.html#K2">1.</a> <font color="Maroon">R</font> as   <a href="struct_0.html#NM1">Element</a> of <span class="p1">(<span class="default"><a href="weddwitt.html#K4" target="_self">center</a> <font color="Maroon">R</font></span>)</span> <b>by </b><i/>;<br/>
<a NAME="E2:27"/>
for <font color="Olive">x</font> being  <a href="struct_0.html#NM1">Element</a> of <span class="p1">(<span class="default"><a href="weddwitt.html#K4" target="_self">center</a> <font color="Maroon">R</font></span>)</span> holds <br/> ( <font color="Olive">x</font> <a href="group_1.html#K10">*</a> <font color="Maroon">e</font> <a href="hidden.html#R1">=</a> <font color="Olive">x</font> &amp; <font color="Maroon">e</font> <a href="group_1.html#K10">*</a> <font color="Olive">x</font> <a href="hidden.html#R1">=</a> <font color="Olive">x</font> )
 
<b>by </b><i/>;<br/>
<b>hence </b><a NAME="E3:27"/>
 <a href="group_1.html#K2">1.</a> <span class="p1">(<span class="default"><a href="weddwitt.html#K4" target="_self">center</a> <font color="Maroon">R</font></span>)</span> <a href="hidden.html#R1">=</a>  <a href="group_1.html#K2">1.</a> <font color="Maroon">R</font>
 <b>by </b><i><a class="ref" href="group_1.html#D5">GROUP_1:def 5</a></i>;<br/>


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