Logic of Violations: A Gentzen System for Reasoningwith Contrary-To-Duty Obligations

Logic of Violations: A Gentzen System for Reasoning with Contrary-To-Duty Obligations

In this paper we present a Gentzen system for reasoning with contrary-to-duty obligations. The intuition behind the system is that a contrary-to-duty is a special kind of normative exception. The logical machinery to formalise this idea is taken from substructural logics and it is based on the definition of a new non-classical connective capturing the notion of reparational obligation. Then the...

A Gentzen System for Reasoning with Contrary-To-Duty Obligations. A Preliminary Study

In this paper we present a Gentzen system for reasoning with contraryto-duty obligations. The intuition behind the system is that a contraryto-duty is a special kind of normative exception. The logical machinery to formalize this idea is taken from substructural logics and it is based on the definition of a new non-classical connective capturing the notion of reparational obligation. Then the s...

Contrary-to-Duty Obligations

We investigate under what conditions contrary-to-duty (CTD) structures lacking temporal and action elements can be given a coherent reading. We argue, contrary to some recent proposals, that CTD is not an instance of defeasible reasoning, and that methods of nonmonotonic logics are inadequate since they are unable to distinguish between defeasibility and violation of primary obligations. We pro...

Normative Requirements and Contrary-to-Duty Obligations

Contrary to Duty Obligations A Study in Legal Ontology

In this paper the problems in deontic logic around contrary to duty obligations are used to conduct a study in basic normative ontology. Three causes of the problems around contrary to duty obligations are identified, that is 1) the attempt to analyze obligations in terms of what is ideally the case, 2) the application of deontic inheritance to the presuppositions of obligations, and 3) the fai...