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<div><span class="kw">theorem </span><a NAME="T6"><span class="comment"><font color="firebrick">:: PRALG_1:6</font></span><br/></a><div class="add"> for <font color="Olive" title="b1">U1</font>, <font color="Olive" title="b2">U2</font> being   <a href="unialg_1.html#NM1" title="UNIALG_1:NM.1">Universal_Algebra</a>  st <font color="Olive" title="b1">U1</font>,<font color="Olive" title="b2">U2</font> <a href="unialg_2.html#R1" title="UNIALG_2:pred.1">are_similar</a>  holds <br/><span class="p1"><a href="pralg_1.html#K5" title="PRALG_1:func.5">[:</a><span class="default"><font color="Olive" title="b1">U1</font>,<font color="Olive" title="b2">U2</font></span><a href="pralg_1.html#K5" title="PRALG_1:func.5">:]</a></span>,<font color="Olive" title="b1">U1</font> <a href="unialg_2.html#R1" title="UNIALG_2:pred.1">are_similar</a> </div></div>
