On What Cannot Be

  • Daniel Cohen


A curious thing about the problem of counterpossibles is that for all its complexity it too can be put in Anglo-Saxon monosyllables: What is meant by ’if p then q’; when ’p’; could not be the case? Unfortunately, and despite some valiant attempts, the answer cannot be given in a word, and so the problem remains.


Modus Ponens Relevant Logic Impossible World Indicative Conditional Vacuous Truth 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.


  1. Appiah, A . (1985): Assertion and Conditionals, Cambridge University Press.Google Scholar
  2. Belnap, N. D. (1973): “Restricted Quantification and Conditional Assertion,” in Truth, Syntax, and Modality, H. Leblanc, ed., North-Holland Publishing Co., Amsterdam, pp. 48–75.CrossRefGoogle Scholar
  3. Cohen, D. H. (1986): “A New Axiomatization of Belnap’s Conditional Assertion,” Notre Dame Journal of Formal Logic, vol. 27, pp. 124–132.CrossRefGoogle Scholar
  4. Cohen, D. H. (1988): “The Problem of Counterpossibles,” Notre Dame Journal of Formal Logic, vol. 29, pp. 91–101.CrossRefGoogle Scholar
  5. Goodman, N. (1955): Fact, Fiction, and Forecast, Cambridge, Mass.Google Scholar
  6. Kvart, E. (1986): A Theory of Counterfactuals, Hackett Publishing Company, Indianapolis.Google Scholar
  7. Lakatos, I. (1976): Proofs and Refutations, J. Worrall and E. Zahar, eds., Cambridge University Press.Google Scholar
  8. Lewis, D. (1973): Counterfactuals, Harvard University Press.Google Scholar
  9. Lewis, D. (1986): On the Plurality of Worlds, Basil Blackwell, Oxford.Google Scholar
  10. Mackie, J. L. (1973): Truth Probability and Paradox, Oxford University Press, New York.Google Scholar
  11. Meyer, R. K. (1985): “A Farewell to Entailment,” Foundations of Logic and Linguistics, Problems and their Solutions, G. Dom and P. Weingartner, eds., Plenum Press, New York.Google Scholar
  12. Routley, R. and Meyer, R. K. (1973): “The Semantics of Entailment I,” Truth, Syntax, and Modality, H. Leblanc, ed., North-Holland, Amsterdam.Google Scholar
  13. Routley, R. with Meyer, R. K., Plumwood, V. and Brady, R. T. (1984): Relevant Logics and their Rivals I, Ridgeview Publishing Co., Atascadero, California.Google Scholar
  14. van Fraassen, B. C. (1975): “Incomplete Assertion and Belnap Connectives,” Contemporary Readings in Philosophical Logic and Linguistic Semantics, Hockney, et al., eds., D. Reidel Publishing Co., Dordrecht, Holland, pp. 43–70.Google Scholar
  15. Wittgenstein, Ludwig (1961): Tractatus Logico-Philosophicus, D. Pears and B. McGuinness, trans., Routledge & Kegan Paul, London.Google Scholar

Copyright information

© Kluwer Academic Publishers 1990

Authors and Affiliations

  • Daniel Cohen

There are no affiliations available

Personalised recommendations