Deontic Modals: Why Abandon the Classical Semantics?
نویسنده
چکیده
I begin by reviewing classical semantics and the problems presented by normative conflicts. After a brief detour through default logic, I establish some connections between the treatment of conflicts in each of these two approaches, classical and default, and then move on to consider some further issues: priorities among norms, or reasons, conditional oughts, and reasons about reasons.
منابع مشابه
Deontic Modals: Why Abandon the Default Approach
John Horty has proposed an approach to reasoning with oughtpropositions which stands in contrast to the standard modal approach to deontic logic. Horty’s approach is based on default theories as known from the framework of Default Logic. It is argued that the approach cannot be extended beyond the most simple kinds of default theories and that it fails in particular to account for conditional o...
متن کاملOn the Treatment of Incomparability in Ordering Semantics and Premise Semantics
In his original semantics for counterfactuals, David Lewis presupposed that the ordering of worlds relevant to the evaluation of a counterfactual admitted no incomparability between worlds. He later came to abandon this assumption. But the approach to incomparability he endorsed makes counterintuitive predictions about a class of examples circumscribed in this paper. e same underlying problem ...
متن کاملDeontic and Epistemic Modals in Suppositional [Inquisitive] Semantics∗
In Groenendijk and Roelofsen (2015) a suppositional semantics for implication is proposed within the general framework of inquisitive semantics. Our aim is to extend this semantic approach to epistemic and deontic modals, but, for the purposes of this short paper, we bracketed off inquisitive aspects of meaning. To illustrate the semantics we discuss a semantic solution to a Jackson inspired pu...
متن کاملDynamic Thoughts on Ifs and Oughts
Iffy oughts figure prominently in a variety of paradoxes of deontic logic. A satisfying response to these paradoxes is a non-negotiable component of any adequate semantic story about conditionals and deontic modals. I demonstrate that such a story can be told but doing so requires that we supplement a semantics that pays proper attention to the sensitivity of ifs and oughts to contextual inform...
متن کاملEvidence Sensitivity in Weak Necessity Deontic Modals
Kolodny and MacFarlane () have made a pioneering contribution to our understanding of how the interpretation of deontic modals can be sensitive to evidence and information. But integrating the discussion of informationsensitivity into the standard Kratzerian framework for modals suggests ways of capturing the relevant data without treating deontic modals as “informational modals” in their s...
متن کامل