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  1. Article

    Open Access

    The representation, quantification, and nature of genetic information

    Current genetics studies often refer to notions from information science. The purpose of this paper is to summarize and structure the different notions of information used in biology, as a step towards develop...

    Steinar Thorvaldsen, Peter Øhrstrøm, Ola Hössjer in Synthese (2024)

  2. No Access

    Article

    A critical discussion of Prior’s philosophical and tense-logical analysis of the ideas of indeterminism and human freedom

    This paper is a critical discussion of A.N. Prior’s contribution to the modern understanding of indeterminism and human freedom of choice. Prior suggested that these ideas should be conceived in terms of his t...

    Peter Øhrstrøm in Synthese (2019)

  3. Article

    Preface

    Jørgen Albretsen, Per Hasle, Peter Øhrstrøm in Synthese (2016)

  4. Article

    Open Access

    Prior’s paradigm for the study of time and its methodological motivation

    A. N. Prior’s writings should obviously be studied already for historical reasons. His inventions of modern temporal logic and hybrid logic are clearly important events in the history of logic. But the endurin...

    Per Hasle, Peter Øhrstrøm in Synthese (2016)

  5. No Access

    Article

    Preface

    Peter Øhrstrøm, Per F. V. Hasle, Ulrik Sandborg-Petersen in Synthese (2012)

  6. No Access

    Article

    From a logical angle

    Peter Øhrstrøm, Per F. V. Hasle in Synthese (2012)

  7. No Access

    Article

    Branching time, indeterminism and tense logic

    This paper deals with the historical and philosophical background of the introduction of the notion of branching time in philosophical logic as it is revealed in the hitherto unpublished mail-correspondence be...

    Thomas Ploug, Peter Øhrstrøm in Synthese (2012)

  8. No Access

    Article

    Prior’s defence of Hintikka’s theorem. A discussion of Prior’s ‘The logic of obligation and the obligations of the logician’

    In his paper, The logic of obligation and the obligations of the logician, A.N. Prior considers Hintikka’s theorem, according to which a statement cannot be both impossible and permissible. This theorem has been ...

    Peter Øhrstrøm, Jörg Zeller, Ulrik Sandborg-Petersen in Synthese (2012)

  9. No Access

    Article

    Time and knowledge

    Peter Øhrstrøm, Lasse Burri Gram-Hansen, Ulrik Sandborg-Petersen in Synthese (2012)

  10. No Access

    Article

    Ethical Problems Inherent in Psychological Research based on Internet Communication as Stored Information

    This paper deals with certain ethical problems inherent in psychological research based on internet communication as stored information. Section 1 contains an analysis of research on Internet debates. In parti...

    Peter Øhrstrøm, Johan Dyhrberg in Theoretical Medicine and Bioethics (2007)

  11. No Access

    Article

    Preface

    Torben Braüner, Per Hasle, Peter Øhrstrøm in Synthese (2006)

  12. No Access

    Article

    A. N. Prior's rediscovery of tense logic

    Peter Øhrstrøm, Per Hasle in Erkenntnis (1993)

  13. No Access

    Article

    Geochronology as a metaphysical research programme

    In diesem Artikel wird der wissenschaftstheoretische Stand der Geochronologie mit Hintergrund in den Arbeiten von Kuhn und besonders Popper diskutiert. Die Geochronologie wird untersucht mit Hinblick auf gener...

    Peter Øhrstrøm in Zeitschrift für allgemeine Wissenschaftstheorie (1987)

  14. No Access

    Article

    Anselm, Ockham and Leibniz on divine foreknowledge and human freedom

    Peter Øhrstrøm in Erkenntnis (1984)

  15. No Access

    Article

    Conventionality in distant simultaneity

    The paper defends the thesis of conventionality in distant simultaneity within the special theory of relativity. The thesis can be expressed in the following way: There is no method independent of standard syn...

    Peter Øhrstrøm in Foundations of Physics (1980)