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<tr><td align="left" valign="top"><a href="maxima_6.html#SEC26">6.6 Desigualdade</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">      
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<tr><td align="left" valign="top"><a href="maxima_6.html#SEC27">6.7 Sintaxe</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">                     
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