%0 Journal Article %T Logic is Metaphysics %A Daniel Durante Pereira Alves %J Principia : an International Journal of Epistemology %D 2011 %I Universidade Federal de Santa Catarina, Brasil %X Analyzing the position of two philosophers whose views are recognizably divergent, W. O. Quine and M. Dummett, we intend to support a striking point of agreement between them: the idea that our logical principles constitute our principles about what there is, and therefore, that logic is metaphysics. %K Logic %K metaphysics %K ontological commitment %K ontological admissibility %K realism %K anti-realism %U http://www.periodicos.ufsc.br/index.php/principia/article/view/1808-1711.2011v15n1p31/20552