Lennart Åqvist (11 March 1932 – 7 March 2019) was a Swedish

logic Logic is the study of correct reasoning. It includes both formal and informal logic. Formal logic is the study of deductively valid inferences or logical truths. It examines how conclusions follow from premises based on the structure o ...

ian. He was a founding member of the editorial board of the

Journal of Philosophical Logic A journal, from the Old French ''journal'' (meaning "daily"), may refer to: *Bullet journal, a method of personal organization *Diary, a record of personal secretive thoughts and as open book to personal therapy or used to feel connected to onesel ...

. Åqvist received his PhD from

Uppsala University Uppsala University (UU) () is a public university, public research university in Uppsala, Sweden. Founded in 1477, it is the List of universities in Sweden, oldest university in Sweden and the Nordic countries still in operation. Initially fou ...

in 1960 and has subsequently worked at Uppsala as Docent of Practical Philosophy.Gerhard Schurz and Georg J. W. Dorn (Editors),
Advances in scientific philosophy : essays in honour of Paul Weingartner on the occasion of the 60th anniversary of his birthday.
Amsterdam, Rodopi, 1991, ; p. 631 On 5 June 1992 he received an

honorary doctorate An honorary degree is an academic degree for which a university (or other degree-awarding institution) has waived all of the usual requirements. It is also known by the Latin phrases ''honoris causa'' ("for the sake of the honour") or '' ad hon ...

from the Faculty of Law at

Sweden Sweden, formally the Kingdom of Sweden, is a Nordic countries, Nordic country located on the Scandinavian Peninsula in Northern Europe. It borders Norway to the west and north, and Finland to the east. At , Sweden is the largest Nordic count ...

He is currently a Reader in Practical Philosophy in the College of Law at Uppsala. Åqvist died on 7 March 2019, at the age of 86.

Published works

* Some Logico-Semantical Themes in Karl Olivecrona's Philosophy of Law: A Non-Exegetical Approach. (2008) Theoria 74 (4):271-294. * An Interpretation of Probability in the Law of Evidence Based on Pro-Et-Contra Argumentation. (2007) Artificial Intelligence and Law 15 (4). * Some Remarks on Performatives in the Law. (2003) Artificial Intelligence and Law 11 (2-3). * Old Foundations for the Logic of Agency and Action. (2002) Studia Logica 72 (3). * The Logic of Historical Necessity as Founded on Two-Dimensional Modal Tense Logic. (1999) Journal of Philosophical Logic 28 (4). * Discrete Tense Logic with Infinitary Inference Rules and Systematic Frame Constants: A Hilbert-Style Axiomatization. (1996) Journal of Philosophical Logic 25 (1). * On the Logic of Causally Necessary and Sufficient Conditions: Towards a Theory of Motive-Explanations of Human Actions. (1989) Erkenntnis 31 (1). * Some Results on Dyadic Deontic Logic and the Logic of Preference. (1986) Synthese 66 (1). * On the Logical Syntax or Linguistic Deep Structure of Certain Crime Descriptions: Prolegomena to the Doctrine of Criminal Intent. (1985) Synthese 65 * A Conjectured Axiomatization of Two-Dimensional Reichenbachian Tense Logic. (1979). Journal of Philosophical Logic 8 (1). * Modal Logic with Subjunctive Conditionals and Dispositional Predicates. (1973) Journal of Philosophical Logic 2 (1). * Improved Formulations of Act-Utilitarianism. (1969) Noûs 3 (3):299-323. * Chisholm-Sosa Logics of Intrinsic Betterness and Value. (1968) Noûs 2 (3):253-270. * Good Samaritans, Contrary-to-Duty Imperatives, and Epistemic Obligations. (1967) Noûs 1 (4):361-379. * Semantic and Pragmatic Characterizability of Linguistic Usage. (1967) Synthese 17 (1). * Results Concerning Some Modal Systems That Contain S. (1964) Journal of Symbolic Logic 29 (2). * A Solution to Moore's Paradox. (1964) Philosophical Studies 15 (1-2). * Interpretations of Deontic Logic. (1964) Mind 73 (290):246-253. * Results Concerning Some Modal Systems That Contain S. (1964) Journal of Symbolic Logic 29 (2):79-87. * A Note on Commitment. (1963) Philosophical Studies 14 (1-2). * Semantic Concepts of Expression. (1962) Philosophy and Phenomenological Research 23 (1):89-100.

References

*Tom Pauli (Editor)
Philosophical essays dedicated to Lennart Åqvist on his fiftieth birthday.
Philosophical Society and Dept. of Philosophy,

University of Uppsala Uppsala University (UU) () is a public research university in Uppsala, Sweden. Founded in 1477, it is the oldest university in Sweden and the Nordic countries still in operation. Initially founded in the 15th century, the university rose to s ...

, 1982 {{DEFAULTSORT:Aqvist, Lennart Swedish logicians 1932 births 20th-century Swedish philosophers 21st-century Swedish philosophers Uppsala University alumni Academic staff of Uppsala University 2019 deaths