%0 Journal Article %T La argumentaci¨®n jur¨ªdica en torno al ius cogens internacional %A Vallarta Marr¨®n %A Jos¨¦ Luis %J Anuario mexicano de derecho internacional %D 2010 %I Instituto de Investigaciones Jur¨ªdicas %X the author, based mainly on the work of antonio g¨®mez robledo regarding international ius cogens, studies the history of that institution, the opinion of govern ments, the debates at the united nations general assembly and the vienna conference on the law of treaties as well as the retated doctrine. after that, he examines the argumentations on that matter in the light of the aritstotle, cicero, maria del carmen platas pacheco, ch¨¤im perelman and robert alexy doctrines. %K axtom %K ius cogens %K ius dispositivum %K international public order %K dialectic silogism %K voidness of treaties %K voluntarism. %U http://www.scielo.org.mx/scielo.php?script=sci_abstract&pid=S1870-46542010000100001&lng=en&nrm=iso&tlng=en