Deontic modality An extraordinary amount of recent work by philosophers of language meta ethicists and semanticists has focused on the meaning and function of language expressing concepts having to do with what is allowed forbidden required or obligatory in view of the requirements of morality the law ones preferences or goals or what an authority has commanded: in short deontic modality. This volume presents new work on the much discussed topic of deontic modality by leading figures in the philosophy of language meta ethics and linguistic semantics. The papers tackle issues about the place of decision and probability theory in the semantics of deontic modality the viability of standard possible worlds treatments of the truth conditions of deontic modal sentences the possibility of dynamic semantic treatments of deontic modality the methodology of semantics for deontic modals and the prospects for representationalist expressivist and inferentialist treatments of deontic modality.