%0 Journal Article %T Prioridade e substancia na metaf¨ªsica de Arist¨®teles %A Lucas Angioni %J DoisPontos %D 2010 %I Universidade Federal do Paran¨¢, Universidade Federal de S?o Carlos %X My aim in this paper is to examine Aristotle¡¯s notions of priority in order to determine which sort of priority he ascribes to substances. I try to show that we cannot accept the traditional idea that a substance¡¯s priority must be understood as existential independence. Aristotle rather ascribes to substances a priority in terms of completion, as he ascribes to substances-of-something some specific sort of causal-explanatory priority. Besides that, Aristotle argues, against Platonism, that these two sorts of priority (completion priority and causal-explanatory priority) must be kept apart from each other in any successful ontology. %K Ontology %K Substance %K Essentialism %K Priority %K Causality %K Definition %U http://ojs.c3sl.ufpr.br/ojs2/index.php/doispontos/article/view/14818/11757