Vol. 5 No. 1 (2023): The History and Philosophy of Tense-logic
Articles

The True Futures: A Couple of Case Studies

Torben Braüner
Department of People and Technology, Roskilde University

Published 23-10-2023

Keywords

  • Arthur Prior,
  • Ockhamistic semantics,
  • future contingents,
  • The Thin Red Line

How to Cite

Braüner, T. (2023). The True Futures: A Couple of Case Studies. Logic and Philosophy of Time, 5(1). https://doi.org/10.54337/lpt.v5i1.7858

Abstract

In this paper we compare Arthur Prior’s well-known Ockhamistic semantics to an alternative semantics for future contingents. We show that the alternative semantics is able to distinguish between two different statements about counterfactual future possibilities, which are equivalent according to Prior’s Ockhamistic semantics.

References

  1. Belnap, N. & and Green, M. Indeterminism and the thin red line. Philosophical Perspectives, 8:365-388, 1994. https://doi.org/10.2307/2214178 DOI: https://doi.org/10.2307/2214178
  2. Braüner, T. The true futures. Revised and extended version of [3], 2022. Manuscript available from the author. DOI: https://doi.org/10.1007/s11229-023-04386-x
  3. Braüner, T., Hasle, P., & Øhrstrøm,P. Ockhamistic logics and true futures of counterfactual moments. In Proceedings of Fifth International Workshop on Temporal Representation and Reasoning, pages 132-139. IEEE Press, 1998. DOI: https://doi.org/10.1109/TIME.1998.674142
  4. Ciuni, R. & Proietti, C. TRL semantics and Burgess' formula. In Logic and Philosophy of Time: Further Themes from Prior, volume 2 of Logic and Philosophy of Time, pages 163-181. Aalborg University Press, 2019.
  5. De Florio, C. & Frigerio, A. The thin red line, Molinism, and the flow of time. Journal of Logic, Language and Information, 29:307-329, 2020.
  6. https://doi.org/10.1007/s10849-019-09304-4 DOI: https://doi.org/10.1007/s10849-019-09304-4
  7. McKim, V.R & Davis, C.C. Temporal modalities and the future. Notre Dame Journal of Formal Logic, 17:233-238, 1976.
  8. https://doi.org/10.1305/ndjfl/1093887526 DOI: https://doi.org/10.1305/ndjfl/1093887526
  9. Øhrstrøm, P. What William of Ockham and Luis de Molina would have said to Nuel Belnap: A discussion of some arguments against "the thin red line". In Nuel Belnap on Indeterminism and Free Action, volume 2 of Outstanding Contributions to Logic, pages 175-190. Springer, 2014.
  10. https://doi.org/10.1007/978-3-319-01754-9_9 DOI: https://doi.org/10.1007/978-3-319-01754-9_9
  11. Øhrstrøm,P. & Hasle, P. Temporal Logic: from Ancient Ideas to Artificial Intelligence. Kluwer Academic Publishers, 1995.
  12. https://doi.org/10.1007/978-0-585-37463-5 DOI: https://doi.org/10.1007/978-0-585-37463-5
  13. Øhrstrøm, P. & Hasle, P. Future contingents. In The Stanford Encyclopedia of Philosophy. Stanford University, 2020. On-line encyclopedia article available at https://plato.stanford.edu/entries/future-contingents.
  14. Prior, A. Past, Present and Future. Clarendon/Oxford University Press, 1967.
  15. https://doi.org/10.1093/acprof:oso/9780198243113.001.0001 DOI: https://doi.org/10.1093/acprof:oso/9780198243113.001.0001
  16. Restall, G. Molinism and the thin red line. In Molinism: The Contemporary Debate, pages 227-238. Oxford University Press, 2011.
  17. https://doi.org/10.1093/acprof:oso/9780199590629.003.0015 DOI: https://doi.org/10.1093/acprof:oso/9780199590629.003.0015
  18. Santelli, A. From William of Ockham to contemporary Ockhamism and back again: An overview. In Ockhamism and Philosophy of Time: Semantic and Metaphysical Issues Concerning Future Contingents, volume 452 of Synthese Library, pages 1-9. Springer, 2022.
  19. https://doi.org/10.1007/978-3-030-90359-6_1 DOI: https://doi.org/10.1007/978-3-030-90359-6_1
  20. Thomason, R.H. Combinations of tense and modality. In Handbook of Philosophical Logic, volume 2, pages 135-165. D. Reidel Publishing Company, 1984.
  21. https://doi.org/10.1007/978-94-009-6259-0_3 DOI: https://doi.org/10.1007/978-94-009-6259-0_3
  22. Thomason, R.H. & Gupta, A. A theory of conditionals in the context of branching time. In Ifs: Conditionals, Belief, Decision, Chance, and Time, pages 299-322. Reidel, Dordrecht, 1980.
  23. https://doi.org/10.1007/978-94-009-9117-0_15 DOI: https://doi.org/10.1007/978-94-009-9117-0_15
  24. William of Ockham. Predestination, God's Foreknowledge, and Future Contingents. Hackett Publishing Company, 1983. Translated and with introduction by M.M. Adams and N. Kretzmann.