Abstract

OLLER, Carlos A.. Obligaciones prima facie y derrotabilidad. Anal. filos. [online]. 2006, vol.26, n.1, pp.147-155. ISSN 1851-9636.

This paper deals with some problems concerning the logical treatment of prima facie obligations in the work of Carlos Alchourrón. On the one hand, we will argue that his DFT system for defeasible conditionals does not adequately formalize the intuitive notion of contributory condition used by Alchourrón to elucidate the notion of defeasible conditional. On the other hand, we will argue that David Ross' notion of prima facie duty is not adequately formalized in Alchourrón' s deontic system AD, an extension of his DFT logic.

Keywords : Prima facie obligation; Defeasible conditional; Contributory condition.

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