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<b>let </b><font color="Maroon" title="c2">U1</font> be    <a href="unialg_2.html#M3" title="UNIALG_2:mode.3">SubAlgebra</a> of <font color="Maroon" title="c1">U0</font>;<br/>

<b>reconsider </b><font color="Maroon" title="c3">U2</font> = <font color="Maroon" title="c2">U1</font> as   <a href="unialg_1.html#NM2" title="UNIALG_1:NM.2">Universal_Algebra</a> ;<br/>
<b>consider </b><font color="Maroon" title="c4">u</font> being    <a href="subset_1.html#M1" title="SUBSET_1:mode.1">Element</a> of  <a href="unialg_2.html#K6" title="UNIALG_2:func.6">Constants</a> <font color="Maroon" title="c3">U2</font>;<br/>
<a NAME="E3:13_1_1"/>
 <a href="unialg_2.html#K6" title="UNIALG_2:func.6">Constants</a> <font color="Maroon" title="c3">U2</font> <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a>  <a href="unialg_2.html#K6" title="UNIALG_2:func.6">Constants</a> <font color="Maroon" title="c1">U0</font>
 
<b>by </b><i><a class="ref" href="unialg_3.html#T6" target="_self" title="UNIALG_3:th.6">Th6</a></i>;<br/>
<a NAME="E4:13_1_1"/><b>then </b>
<font color="Maroon" title="c4">u</font> <a href="hidden.html#R2" title="HIDDEN:pred.2">in</a>  <a href="unialg_2.html#K6" title="UNIALG_2:func.6">Constants</a> <font color="Maroon" title="c3">U2</font>
 
;<br/>
<b>then consider </b><font color="Maroon" title="c5">u1</font> being   <a href="struct_0.html#NM1" title="STRUCT_0:NM.1">Element</a> of <font color="Maroon" title="c3">U2</font><b> such that </b><br/><a NAME="E6:13_1_1"/><i><font color="Green" title="E7">A1</font></i>: 
( <font color="Maroon" title="c4">u</font> <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a> <font color="Maroon" title="c5">u1</font> &amp;  ex <font color="Olive" title="b1">o</font> being  <a href="unialg_2.html#NM5" title="UNIALG_2:NM.5">operation</a> of <font color="Maroon" title="c3">U2</font> st <br/>(  <a href="unialg_1.html#K3" title="UNIALG_1:func.3">arity</a> <font color="Olive" title="b1">o</font> <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a> 0 &amp; <font color="Maroon" title="c5">u1</font> <a href="hidden.html#R2" title="HIDDEN:pred.2">in</a>  <a href="relset_1.html#K5" title="RELSET_1:func.5">rng</a> <font color="Olive" title="b1">o</font> ) )
 ;<br/>
<b>thus </b><a NAME="E7:13_1_1"/>
<font color="Maroon" title="c2">U1</font> is <a href="unialg_2.html#V2" title="UNIALG_2:attr.2">with_const_op</a>
 <b>by </b><i><a class="txt" href="unialg_3.html#E6:13_1_1"><i><font color="Green" title="E7">A1</font></i></a>, <a class="ref" href="unialg_2.html#D12" title="UNIALG_2:def.12">UNIALG_2:def 12</a></i>;<br/>


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