The paper discusses the possible logical status of the “obligatory implies permitted” principle. it does so, by reconstructing the implication between “obligatory” and “permitted” first as a material entailment, depending on the world, and then as a formal entailment, depending on the logical form of sentences. The main result of this inquiry is that, on the first material interpretation, the entailment is not granted universally, since it is only valid regarding consistent normative systems, and, on the second formal construction, the entailment is vacuous, since it is just a way of framing the relations of the concepts of “obligation” and “permission”.
“Obligatorio” implica “permitido”. ¿implicación formal o material?
RATTI, GIOVANNI BATTISTA
2015-01-01
Abstract
The paper discusses the possible logical status of the “obligatory implies permitted” principle. it does so, by reconstructing the implication between “obligatory” and “permitted” first as a material entailment, depending on the world, and then as a formal entailment, depending on the logical form of sentences. The main result of this inquiry is that, on the first material interpretation, the entailment is not granted universally, since it is only valid regarding consistent normative systems, and, on the second formal construction, the entailment is vacuous, since it is just a way of framing the relations of the concepts of “obligation” and “permission”.
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