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<a NAME="E1:122"/>
<font color="Maroon">H<sub>1</sub></font>( <a href="monoid_0.html#K8" target="_self">&lt;NAT,*&gt;</a> ) <a href="hidden.html#R1">=</a>  <a href="numbers.html#K5">NAT</a> 
 
<b>by </b><i><a class="ref" href="monoid_0.html#D31" target="_self">Def31</a></i>;<br/>
<b>hence </b><a NAME="E2:122"/>
 <a href="binop_1.html#K3">the_unity_wrt</a> the <a href="group_1.html#U1">mult</a> of <a href="monoid_0.html#K8" target="_self">&lt;NAT,*&gt;</a>  <a href="hidden.html#R1">=</a> 1
 <b>by </b><i><a class="ref" href="monoid_0.html#T32" target="_self">Th32</a>, <a class="ref" href="binop_2.html#T7">BINOP_2:7</a></i>;<br/>


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