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<b>let </b><font color="Maroon" title="c3">G</font> be    <a href="monoid_0.html#M2" title="MONOID_0:mode.2">SubStr</a> of <font color="Maroon" title="c2">G2</font>;<br/>

<a NAME="E1:68_1_1"/>
( <font color="Maroon">H<sub>2</sub></font>(<font color="Maroon" title="c3">G</font>) <a href="funct_4.html#NR1" title="FUNCT_4:NR.1">&lt;=</a> <font color="Maroon">H<sub>2</sub></font>(<font color="Maroon" title="c2">G2</font>) &amp; <font color="Maroon">H<sub>2</sub></font>(<font color="Maroon" title="c2">G2</font>) <a href="funct_4.html#NR1" title="FUNCT_4:NR.1">&lt;=</a> <font color="Maroon">H<sub>2</sub></font>(<font color="Maroon" title="c1">G1</font>) )
 
<b>by </b><i><a class="ref" href="monoid_0.html#D23" target="_self" title="MONOID_0:def.23">Def23</a></i>;<br/>
<b>hence </b><a NAME="E2:68_1_1"/>
<font color="Maroon">H<sub>2</sub></font>(<font color="Maroon" title="c3">G</font>) <a href="funct_4.html#NR1" title="FUNCT_4:NR.1">&lt;=</a> <font color="Maroon">H<sub>2</sub></font>(<font color="Maroon" title="c1">G1</font>)
 <b>by </b><i><a class="ref" href="xboole_1.html#T1" title="XBOOLE_1:th.1">XBOOLE_1:1</a></i>; <i><font color="Red">:: according to </font></i><a class="ref" href="monoid_0.html#D23" target="_self" title="MONOID_0:def.23">MONOID_0:def 23</a><br/>


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