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<span class="kw">consider </span><font color="Maroon" title="c3">U2</font> being   <a href="osalg_2.html#NM3" title="OSALG_2:NM.3">OSSubAlgebra</a> of <font color="Maroon" title="c2">U1</font>;<br/>
<span class="kw">take </span>
<font color="Maroon" title="c3">U2</font>
; <a class="txt" onclick="hs(this)" href="javascript:()"><span class="comment"><font color="Red">::  thesis: </font></span></a><span class="hide"> <font color="Maroon" title="c3">U2</font> is  <a href="osalg_1.html#V13" title="OSALG_1:attr.13">monotone</a> </span><br/>

<span class="kw">thus </span><a NAME="E2:21_1_1"/>
<font color="Maroon" title="c3">U2</font> is  <a href="osalg_1.html#V13" title="OSALG_1:attr.13">monotone</a> 
 <span class="kw">by</span> <span class="lab"><a class="ref" href="osalg_3.html#T15" target="_self" title="OSALG_3:th.15">Th15</a></span>; <a class="txt" onclick="hs(this)" href="javascript:()"><span class="comment"><font color="Red">::  thesis: </font></span></a><span class="hide"> verum</span><br/>


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