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References
Stig Kanger, Provability in Logic, Almquist & Wiksell, Stockholm, 1957; ‘A Note on Quantification and Modalities’ and ‘On the Characterization of Modalities’, both in Theoria 23 (1957).
Jaakko Hintikka, ‘Modality and Quantification’, Theoria 27 (1961), and ‘The Modes of Modality’, Acta Philosophica Fennica 16 (1963).
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For a detailed examination of the overall connections between imperatives and deontic statements see H.-N. Castañeda's ‘Imperatives, Decisions and Oughts’ in Morality and the Language of Conduct (ed. by H.-N. Castañeda and G. Nakhnikian), Wayne State University Press, Detroit, Mich., 1963; paperback edition, 1967.
On conflicts of duties and prima facie oughts see H.-N. Castañeda's ‘Imperatives, Oughts and Moral Oughts’, The Australasian Journal of Philosophy 44 (1966).
For a discussion of proposals to solve the Good Samaritan paradox, see H.-N. Castañeda, ‘Acts, the Logic of Obligation, and Deontic Calculi’, Philosophical Studies 19 (1968); W. Sellars, ‘Reflections on Contrary-to-Duty Imperatives’, Noûs 1 (1967); L. Åqvist, ‘Good Samaritans, Contrary-to-Duty Imperatives, and Epistemic Obligations’, Noûs 1 (1967); and L. Powers, ‘Some Deontic Logicians’, Noûs 1 (1967).
H.-N. Castañeda, ‘Actions, Imperatives, and Obligations’, Proceedings of the Aristotelian Society 67 (1967–1968) 45 ff.
See W. V. Quine, Methods of Logic, Holt, Rinehart and Winston, New York, revised edition, 1959, pp. 107–117.
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Castañeda, HN. On the semantics of the ought-to-do. Synthese 21, 449–468 (1970). https://doi.org/10.1007/BF00484811
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DOI: https://doi.org/10.1007/BF00484811