Change search
ReferencesLink to record
Permanent link

Direct link
Alethic-Deontic Logic: Deontic Accessibility Defined in Terms of Alethic Accessibility
Stockholm University, Faculty of Humanities, Department of Philosophy.
2015 (English)In: Filosofiska notiser, ISSN 2002-0198, Vol. 2, no 3, 3-26 p.Article in journal (Other academic) Published
Abstract [en]

According to many normative theories, to say that something ought to be, or ought to be done, is to state that the being or doing of this thing is in some sense a necessary condition (requirement) of something else. In this paper, I explore the consequences of such a view. I consider what kind of alethic-deontic logic is appropriate for theories of this sort. Alethic-deontic logic is a kind of bimodal logic that combines ordinary alethic (modal) logic and deontic logic. Ordinary alethic logic is a branch of logic that deals with modal concepts, such as necessity and possibility, modal sentences, arguments and systems. Deontic logic is the logic of norms. It deals with normative words, such as "ought", "right" and "wrong", normative sentences, arguments and systems. I will define the so-called deontic accessibility relation in terms of the so-called alethic accessibility relation, and I will examine the consequences of this definition. It will turn out that a particular alethic-deontic system, Strong alethic-deontic logic, is plausible given this definition. By adding a certain frame-condition, the accessibility condition, we obtain a slightly stronger system, Full alethic-deontic logic. Some of the technical details of these systems are briefly described. Most of the systems mentioned in this paper are developed in more detail elsewhere.

Place, publisher, year, edition, pages
2015. Vol. 2, no 3, 3-26 p.
National Category
Philosophy
Research subject
Philosophy
Identifiers
URN: urn:nbn:se:su:diva-124548OAI: oai:DiVA.org:su-124548DiVA: diva2:889821
Available from: 2015-12-28 Created: 2015-12-28 Last updated: 2015-12-30Bibliographically approved

Open Access in DiVA

No full text

Other links

Free full text

Search in DiVA

By author/editor
Rönnedal, Daniel
By organisation
Department of Philosophy
Philosophy

Search outside of DiVA

GoogleGoogle Scholar
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Total: 44 hits
ReferencesLink to record
Permanent link

Direct link