1958

• Husserl und Frege: ein Beitrag zur Beleuchtung der Entstehung der phanomenologischen Philosophie. Avhandlinger utgitt av det Norske videnskaps-akademi i Oslo. 2:Hist.-filos. klasse, 1958, no. 2. Oslo: I kommisjon hos Aschehoug, 1958. 60 p.

• "Mates on Referential Opacity." Inquiry (1958), 1:232-238.

1959

• "Platons dialog Ion ed. Wyller." Gnomon (1959), 31:281-

1964

• Review of Arthur Smullyan's Fundamentals of Logic. Philosophical Review (January 1964), 73(1):124-127.

1965

• Review of Jan Berg's Bolzano's Logic. Isis (Fall 1965), 56(3):388-

1966

• "Proving the Non-Existence of God(2)." Inquiry (1966), 9(2):197-199.

• Referential Opacity and Modal logic. Oslo: Universitetsforlaget, 1966. 168 l.

1967

• "Comments on Stenius's Mood and Language-Game." Synthese (September 1967), 17(3):275-280.

• "Knowledge, Identity and Existence." Theoria (1967), 33:1-27.

• Review of Anna Teresa Tymieniecka and Charles Parsons, eds., Contributions to Logic and Methodology in Honor of J. M. Bochenski. Philosophical Review (October 1967), 76(4):536-542.

1968

• "Quine on Modality." Synthese (December 1968), 19(1-2):147-157.

• Review of Claes-Goran Holm's On the Question of the Rise of Quantification Theory and Dag Prawitz' Concerning constructive Logic and the Concept of Implication, Jan Berg's Definitions of the Concept Vyapti According to Gangesa, Lars Bergstrom's Something on `Pragmatic Implication' and Similar Concepts. Journal of Symbolic Logic (December 1968), 33(4):605-606.

1969

• "Husserl's Notion of Noema." Journal of Philosophy (October 1969), 66(20):680-687.
  Sixty-sixth Annual Meeting of the American Philosophical Association Eastern Division / Symposium: Phenomenology

• "Quine on Modality." In Donald Davidson and Jaako Hintikka, eds., Words and Objections: Essays on the Work of W.V. Quine, pp. 175-185. Dordrecht: Reidel, 1969.

1971

• "Quantification into Causal Contexts." In Leonard Linksy, ed., Reference and Modality. Oxford Readings in Philosophy. Oxford: Oxford University Press, 1971.

1973

• "Indeterminacy of Translation and Under-Determination of the Theory of Nature." Dialectica (1973), 27:289-301.

1974

• "Husserl's Theory of Perception." Ajatus (1974), 36:95-103.

1975

• Review of Soren Hallden's A Pragmatic Approcah to Modal Theory. Journal of Symbolic Logic (December 1975), 40(4):601-602.

1978

• "Brentano and Husserl on Intentional Objects and Perceptions." In R.M. Chisholm, ed., Die Philosophie Franz Brentanos, pp. 83-94. Amsterdam: Rodopi, 1978.

1979

• "Hermeneutics and the Hypothetico-Deductive Method." Dialectica (1979), 33(3-4):319-336.

• "Some Ethical Aspects of Recombinant DNA Research." Social Science Information (1979), 18(3):401-419.

1980

• "Explanation of Action." In Risto Hilpinen, ed., Rationality in Science, pp. 231-248. Boston: Reidel, 1980.

1981

• "Comments on Quine's 'Grammar, Truth, and Logic'." In S. Kanger, ed., Philosophy and Grammar, pp. 29-36. Boston: Reidel, 1981.

• (with Risto Hilpinen.) "Deontic Logic." In Risto Hilpinen, ed., Deontic Logic: Introductory and Systematic Readings. Dordrecht & Boston: Reidel/Kluwer, 1981.

• "La liberté chez Sartre." Revue Internationale de Philosophie (1981), 35(1) [135]:41-

• "Sartre on Freedom." In Paul Schlipp, ed., The Philosophy of Jean-Paul Sartre, pp. 392-407. La Salle: Open Court, 1981.

• "Understanding and Rationality." In Herman Parret, ed., Meaning and Understanding, pp. 154-168. Berlin: de Gruyter, 1981.

1982

• "The Status of Rationality Assumptions in Interpretation and in the Explanation of Action." Dialectica (1982), 36(4):301-316.

1984

• (with Guttorm Floistad.) "Communication and Convention." Synthese (April 1984), 59(1):3-.

• (with Guttorm Floistad.) "Preface." Synthese (April 1984), 59(1):1.

1985

• "Causation and Explanation: A Problem in Davidson's View on Action and Mind." In Ernest LePore, ed., Actions and Events, pp. 311-323. Oxford: Blackwell, 1985.

1986

• "Essentialism and Reference." In Lewis Hahn, ed., The Philosophy of W. V. Quine, pp. 97-115. La Salle: Open Court, 1986.

• "Intentionality and Rationality." In Joseph Margolis, ed., Rationality, Relativism and the Human Sciences, pp. 109-125. Dordrecht: Nijhoff, 1986.

• "Rationalitat in Husserls Phanomenologie." In Ernst Wolfgang Orth, ed., Vernunft und Kontingenz: Rationalitat und Ethos in der Phanomenologie, pp. 35-52. Phanomenologische Forschungen, Bd. 19 = Phenomenological Studies. Freiburg: Alber, 1986.

1988

• "Husserl on Evidence and Justification." In Robert Sokolowski, ed., Edmund Husserl and the Phenomenological Tradition: Essays in Phenomenology. Studies in Philosophy and the History of Philosophy, 18. Washington, DC: Catholic University of America Press, 1988.

• "Reference and Sense." In Venant Cauchy, ed., Philosophy and Culture, Vol. 1 pp. 229-239. Montreal: Ed du Beffroi, 1986.

1990

• "Indeterminacy and Mental States." In Perspectives on Quine. Oxford & Cambridge, Mass.: Blackwell, 1990.

• "The Lebenswelt in Husserl." Acta Philosophica Fennica (1990), 49:123-143.

• "Noema and Meaning in Husserl." Philosophy and Phenomenological Research (Fall 1990), 50(Supplement):263-271.

1991

• "The Justification of Logic and Mathematics in Husserl's Phenomenology." In Dagfinn Follesdal, Jitendra Nath Mohanty and Thomas M. Seebohm, eds., Phenomenology and the Formal Sciences. Contributions to Phenomenology, 8. Dordrecht & Boston: Kluwer, 1991.

• "Le statut des presupposes de rationalite dans l'interpretation et dans l'explication de l'action." In Marc Neuberg, ed., Theorie de l'action: textes majeurs de la philosophie analytique de l'action. Philosophie et langage. Liege: Mardaga, 1991.

1993

• "La notion d'intentionalité chez Husserl." Dialectica (1993), 47(2-3):173-187.

1994

• "Comments on Quine, Prawitz, Hintikka and Sandu, and Smith." Synthese (January 1994), 98(1):175-186.

• (with Lars Begstrom.) "Exchange between Donald Davidson and W. V. Quine following Davidson's Lecture." Theoria (1994), 60(3):226-231.

• "Husserl and Frege: A Contribution to Elucidating the Origins of Phenomenological Philosophy." In Leila Haaparanta, ed., Mind, Meaning and Mathematics: Essays on the Philosophical Views of Husserl and Frege. Synthese Library, 237. Dordrecht: Kluwer, 1994.

• "Husserl's Notion of Intentionality." In John Macnamara and Gonzalo E. Reyes, eds., The Logical Foundations of Cognition. Vancouver Studies in Cognitive Science, 4. New York: Oxford University Press, 1994.

• (with Lars Begstrom.) "Interview with Donald Davidson in November 1993." Theoria (1994), 60(3):207-225.

• "Interview with Willard Van Orman Quine in November 1993." Theoria (1994), 60(3):193-206.

• "Objects and Concepts, I?" Aristotelian Society Supplementary Volume (1994), 68:131-148.

1995

• [THE HUSSERLIAN NOTION OF NOEMA]. ETUDES PHILOSOPHIQUES, 1995 JAN-MAR, N1:5-12.

• "Gödel and Husserl." In Jaakko Hintikka, ed., From Dedekind to Godel: Essays on the Development of the Foundations of Mathematics. Synthese Library, 251. Dordrecht: Kluwer, 1995.

• "In What Sense Is Language Public?" In Paolo Leonardi, ed., On Quine: New Essays. New York & Cambridge: Cambridge University Press, 1995.

1996

• "Analytic Philosophy: What Is It and Why Should One Engage in It?" Ratio (December 1996), 9(3):193-208.

1997

• "Was ist analytische Philosophie?" In Georg Meggle, ed., Analyomen 2, Volume I: Logic, Epistemology, Philosophy of Science. Berlin: de Gruyter, 1997.

1998

• "Referential Opacity and Modal Logic, [Sections] 16-19." In Paul W. Humphreys and James H. Fetzer, eds., The New Theory of Reference: Kripke, Marcus, and its Origins. Synthese Library, 270. Dordrecht & Boston: Kluwer, 1998.

1999

• "Gödel and Husserl." In Jean Petitot, ed., Naturalizing Phenomenology: Issues in Contemporary Phenomenology and Cognitive Science. Writing Science. Stanford, Calif.: Stanford University Press, 1999.

• "Mind and Meaning." Philosophical Studies (May 1999), 94(1-2):139-149.
       Selected Papers Presented at the American Philosophical Association Pacific Division Meeting 1998.

2000

• "Absorbed Coping, Husserl and Heidegger." In Mark A. Wrathall and Jeff Malpas, eds., Heidegger, Authenticity, and Modernity: Essays in Honor of Hubert L. Dreyfus, Volume 1, pp. 251-257. Cambridge, Mass.: MIT Press, 2000.