<?xml version="1.0"?>
<div><span class="kw">theorem </span><a NAME="T12"><span class="comment"><font color="firebrick">:: ALG_1:12</font></span><br/></a><div class="add"> for <font color="Olive" title="b1">U1</font> being   <a href="unialg_1.html#NM1" title="UNIALG_1:NM.1">Universal_Algebra</a> holds  <font color="Olive" title="b1">U1</font>,<font color="Olive" title="b1">U1</font> <a href="alg_1.html#R5" title="ALG_1:pred.5">are_isomorphic</a> </div></div>
