LOGIC

My research in logic is conducted on several fronts. In Meinongian Logic: The Semantics of Existence and Nonexistence, and numerous related articles, I develop a formal symbolic logic for an intentionalist semantics of existent, abstract, and beingless objects.

The logic I have advanced is a three-valued system in which it is possible to refer and truly predicate properties of nonexistent as well as existent objects as intended objects of thought. The advantages of the logic include its metaphysical neutrality with respect to all objects in its semantic domain, its straightforward formalization of ordinary thought and discourse, and its ability to solve certain otherwise formally intractable problems encountered by classical extensional logic. Ontic commitment is not expressed as the value of existentially bound variables in the logic, but by means of an existence predicate. In many other respects, the logic delivers all of the inferential apparatus of classical logic, which my system embeds, without the existence presuppositions and related logical limitations of classical logic.

Additionally, I have made contributions to more specialized topics in logic theory and applications. These include work in metatheory, foundations of mathematics, modal logics, including deontic logic, theoretical foundations of paraconsistent logic, the analysis of logical paradoxes, including among others the liar, the validity or Pseudo-Scotus, Buridan’s bridge, the soundness paradox, the sorities and slippery slope, and the surprise event paradox. I have also published numerous articles in special topics in the history of logic, including work on Kurt Gödel, Alonzo Church, Ludwig Wittgenstein, Alfred Tarski, I.M. Bochenski, and contemporary logicians. My recently published book, Wittgenstein’s Thought in Transition offers a detailed exposition of Wittgenstein’s early logic in his Tractatus Logico-Philosophicus and the 1929 essay, ‘Some Remarks on Logical Form’.

I have also published an introductory classical logic textbook, Symbolic Logic, and edited the Blackwell Companion to Philosophical Logic, as well as two additional projects for Blackwell, Philosophy of Logic: An Anthology and Philosophy of Mathematics: An Anthology. My book, Ontology makes substantial use of pure and applied logic to clarify and work toward solutions of longstanding problems in pure philosophical and applied scientific ontology. My historical and mathematical introduction to Boolean algebra, On Boole, discusses not only formal aspects of Boole's logic, but also its frequently criticized psychologism. Most recently, I have published an extensive collection of newly commissioned papers in many areas of philosophical logic, titled Philosophy of Logic in the Elsevier (North-Holland) Handbook of the Philosophy of Science series. I am currently preparing two texts in logic, Logic, Philosophy, Analysis and Frege: A Philosophical Biography.

Listed here are my publications in logic:

BOOKS

Meinongian Logic: The Semantics of Existence and Nonexistence (Walter de Gruyter & Co., 1996) (xiii + 297 pp.).

Wittgenstein's Thought in Transition (Purdue University Press, 1998) (xix + 356 pp.).

Symbolic Logic (Wadsworth Publishing) (with instructor's manual and student solutions manual, prepared in collaboration with Andrew R. Martinez, and interactive logic exercises on CD-ROM designed in collaboration with Nelson Pole) (Wadsworth Publishing, 2001) (xix + 488 pp.).

David Hume's Critique of Infinity (Brill Academic Publishers, 2001) (xvii + 384 pp.).

On Boole (Wadsworth Publishing / Philosophers Series, 2002) (vi + 97 pp.).

A Companion to Philosophical Logic (edited) (Blackwell Publishers, 2002), (xiii + 816 pp.). (Electronic e-book NetLibrary version published to licensed distributors by Baker & Taylor, Inc,; http://www.netLibrary.com). Paperback edition with corrections 2006.

Ontology (Acumen Books, McGill-Queen's University Press / Central Problems of Philosophy Series, 2002) (xv + 348 pp.).

Philosophy of Mathematics: An Anthology (Blackwell Publishing, 2002), (xi + 372 pp.).

Philosophy of Logic: An Anthology (edited) (Blackwell Publishers, 2002) (xi + 372 pp.).

Philosophy, Psychology, and Psychologism: Critical and Historical Readings on the Psychological Turn in Philosophy (edited) (Kluwer Academic Publishing / Philosophical Studies Series, volume 91, 2003) (xiii + 339 pp.).

Philosophy of Logic (edited) Handbook of the Philosophy of Science Series, edited by Dov Gabbay, John Woods and Paul Thagard (North-Holland Press (Elsevier), 2007) (xvi + 1202 pp.) (forthcoming also in Russian and Chinese translations).

Gottlob Frege, The Foundations of Arithmetic: A Logical-Mathematical Investigation into the Concept of Number, Translation and Introduction With Critical Commentary by Dale Jacquette (of Die Grundlagen der Arithmetik: eine logisch mathematische Untersuchungen über den Begriff der Zahl, 1884) (New York: Longman Library of Primary Sources in Philosophy, 2007) (xxxii + 112 pp.).

forthcoming

Bertrand Russell, An Introduction to Mathematical Philosophy, with a Critical Introduction by Dale Jacquette (Longman), in press.

Logic, Philosophy, Analysis (Acumen Books), in preparation.

Frege: A Philosophical Biography (Cambridge University Press), in preparation.

Possible Worlds (edited with Guido Imaguire) (Ontos Verlag), in preparation.

After 'On Denoting': Themes from Russell and Meinong (edited with Kenneth Blackwell and Nicholas Griffin)(The Bertrand Russell Research Centre), in preparation.

Russell versus Meinong (edited with Nicholas Griffin), Routledge, in preparation.

"Essential Concepts of Systematic Logic" (Chinese translation), Journal of Peking University (Philosophy and Social Sciences Edition), Logic Forum, 44, 2007, 35-42.

"Collingwood Against Metaphysical Realism", Collingwood and British Idealism Studies 12, 2006, 103-114.

"Bochenski on Property Identity and the Refutation of Universals", Journal of Philosophical Logic, 35, 2006, 293-316.

"Propositions, Sets, and Worlds", Studia Logica: An International Journal for Symbolic Logic, special double issue 'Ways of Worlds' on 40 Years of Possible Worlds Semantics, Vol. 1: On Possible Worlds and Related Notions, edited by Vincent F. Hendricks and Stig Andur Pedersen, 82, 2006, 337-343.

"An Elementary Deductive Logic Excercise: Maximus Tyrius's Proof That There is No Injustice", Teaching Philosophy, Logic Notes, 29, 2006, 45-52.

"Applied Mathematics in the Sciences", The Croatian Journal of Philosophy, 6, 2006, 237-267.

"Adevar si fictiune in critica lui David Lewis asupra semanticii meinongiene", (Romanian translation of "Truth and Fiction in David Lewis's Critique of Meinongian Semantics", 2001, below), Linguistic and Philosophical Investigations, 5, 2006, 55-86.

"Nonstandard Modal Semantics and the Concept of a Logically Possible World", Philosophia Scientiae, 9, 2005, special issue on 'Aperçus philosophiques en logique et en mathématiques', edited by Gerhard Heinzmann and Manuel Rebuschi, 239-258.

"Indeterminarea Cuanticai Argumentul Wittgensteinian al Limbajului Privat", (Romanian translation of "Quantum Indeterminacy and Wittgenstein's Private Language Argument", 1999, below), Analysis and Metaphysics, 4, 2005, 125-147.

"Grelling's Revenge", Analysis, 64, 2004, 251-256.

"Idealism and Williams's Semantic Paradox", Philosophical Investigations, 27, 2004, 117-128.

"Theory and Observation in the Philosophy of Science", Logical Analysis and History of Philosophy, 7, special issue on History of the Philosophy of Nature ('Geschichte der Naturphilosophie'), 7, 2004, 177-196.

"The Soundness Paradox", Logic Journal of the Interest Group in Pure and Applied Logics, (IGPL), 11, 2003, 547-556.

"Probability, Practical Reasoning, and Conditional Statements of Intent", The Harvard Review of Philosophy, 11, 2003, 101-113.

"Conditional Intent in the Strange Case of Murder by Logic", Logic and Logical Philosophy, 12, 2003, 301-316.

"Hume on Infinite Divisibility and the Negative Idea of a Vacuum", The British Journal for the History of Philosophy, 10, 2002, 413-435.

"Analysis of Quantifiers in Wittgenstein's Tractatus: A Critical Survey", Logical Analysis and History of Philosophy, 4, 2001, 191-202.

"Psychologism Revisited in Logic, Metaphysics, and Epistemology", Metaphilosophy, 32, 2001, 261-278.

"Truth and Fiction in David Lewis's Critique of Meinongian Semantics", Metaphysica: International Journal for Ontology and Metaphysics", 2, 2001, 73-106.

"Identity, Intensionality, and Moore's Paradox", Synthese, 123, 2000, 279-292.

"Conundrums of Conditionals in Contraposition", Nordic Journal of Philosophical Logic, 4, 2000, 117-126.

"Confessions of a Meinongian Logician", Grazer Philosophische Studien, 58-59, 2000, 151-180.

"Liar Paradox and Metaparadox", Sats: Nordisk Tidsskrift for Filosofi, 1, 2000, 93-104.

"An Internal Determinacy Metatheorem for Lukasiewicz's Aussagenkalküls", Bulletin of the Section of Logic, 29, 2000, 115-124.

"Wittgenstein's Anthropologism in Logic, Philosophy, and the Social Sciences", Social Epistemology, 13, 1999, 303-322.

"L'Antropologismo Wittgensteiniano nella Logica, nella Filosofia e nelle Scienze Sociali", (Italian translation of "Wittgenstein's Anthropologism in Logic, Philosophy, and the Social Sciences", 1999 above), Studi Perugini, 7, 1999, 159-189.

"Demonstratives and the Logic of the Self", Philosophical Papers, 28, 1999, 1-23.

"Paraconsistent Logical Consequence", Journal of Applied Non-Classical Logics, 8, 1998, 337-351.

"Reflections on Mally's Heresy", Axiomathes, 8, 1997, 163-180.

"Conceivability, Intensionality, and the Logic of Anselm's Modal Argument for the Existence of God", International Journal for Philosophy of Religion, 42, 1997, 163-173.

"The Validity Paradox in Modal S₅", Synthese, 109, 1996, 47-62.

"Many-Valued Deontic Predications", Logique et Analyse, 155-156, 1996, 243-254.

"Charity and the Reiteration Problem for Enthymemes", Informal Logic, 18, 1996, 1-15.

"Adversus Adversus Regressum (Against Infinite Regress Objections)", The Journal of Speculative Philosophy, 10, 1996, 105-119.

"On Defoliating Meinong's Jungle", Axiomathes, special issue on 'The Philosophy of Alexius Meinong', 7, 1996, 17-42.

"Untitled", Philosophy and Literature, 19, 1995, 102-105.

"Meinong's Concept of Implexive Being and Nonbeing", Grazer Philosophische Studien, 50, 1995, 233-271.

"Object Theory Foundations for Intensional Logic", Acta Analytica, 13, 1995, 33-63.

"Virtual Relations", Idealistic Studies, 25, 1995, 141-154 (see below).

"Virtual Relations vs. Virtual Universals: Essay, Comments, and Reply" (with William J. Rapaport), Center for Cognitive Science Technical Report 95-10 (Buffalo: State University of New York Technical Report Series, 1995), 1-20.

"Obligations Under Causal Constraints", Synthese, 99, 1994, 307-310.

"Formalization in Philosophical Logic", The Monist, 77, 1994, 358-375.

"Tarski's Quantificational Semantics and Meinongian Object Theory Domains", Pacific Philosophical Quarterly, 75, 1994, 88-107.

"A Meinongian Theory of Definite Description", Axiomathes, 5, 1994, 345-359.

"Meinongian Logic and Anselm's Ontological Proof for the Existence of God", The Philosophical Forum, 25, 1994, 231-240.

"Many Questions Begs the Question (But Questions Do Not Beg the Question)", Argumentation, 8, 1994, 283-289.

"Logical Dimensions of Question-Begging Argument", American Philosophical Quarterly, 30, 1993, 317-327.

"A Dialogue on Zeno's Paradox of Achilles and the Tortoise", Argumentation, 7, 1993, 273-290.

"Contradiction", Philosophy and Rhetoric, 25, 1992, 365-390.

"A Deflationary Resolution of the Surprise Event Paradox", Iyyun: The Jerusalem Philosophical Quarterly, 41, 1992, 335-349.

"Buridan's Bridge", Philosophy, 66, 1991, 455-471.

"Moral Dilemmas, Disjunctive Obligations, and Kant's Principle that 'Ought' Implies 'Can'", Synthese, 88, 1991, 43-55.

"On the Completeness of a Certain System of Arithmetic of Whole Numbers in which Addition Occurs as the Only Operation", translation of and commentary on Mojzesz Presburger, "Ueber die Vollstaendigkeit eines gewissen Systems der Arithmetik ganzer Zahlen, in welchem die Addition als einzige Operation hervortritt", History and Philosophy of Logic, 12, 1991, 225-233.

"A Fregean Solution to the Paradox of Analysis", Grazer Philosophische Studien, 37, 1990, 59-73.

"Mally's Heresy and the Logic of Meinong's Object Theory", History and Philosophy of Logic, 10, 1989, 1-14.

"Intentional Semantics and the Logic of Fiction", The British Journal of Aesthetics, 29, 1989, 168-176.

"The Hidden Logic of Slippery Slope Arguments", Philosophy and Rhetoric, 22, 1989, 59-70.

"Dualities of Self-Non-Application and Infinite Regress" (with Henry W. Johnstone, Jr.), Logique et Analyse, 125-126, 1989, 29-40.

"Modal Meinongian Logic", Logique et Analyse, 125-126, 1989, 113-130.

"Presupposition and Foundational Asymmetry in Metaphysics and Logic", Philosophia Mathematica: International Journal for Philosophy of Mathematics, 4, 1989, 15-22.

"Epistemic Blood from Logical Turnips", Philosophy and Rhetoric, 22, 1989, 203-211.

"Metamathematical Criteria for Minds and Machines", Erkenntnis, 27, 1987, 1-16.

"Forrester's Paradox", Dialogue, 25, 1986, 761-763.

"Denying the Liar", Polish Journal of Philosophy.

"Object Theory Logic and Mathematics: Two Essays by Ernst Mally (Translation and Commentary)", History and Philosophy of Logic.

"Burleigh's Paradox ", Philosophy.

"Preface: After Russell, After Meinong", Russell: Journal of the Bertrand Russell Society, special issue on the 100th aniversary of 'On Denoting', guest co-edited with Kenneth Blackwell and Nicholas Griffin.

"Two Sides of Any Issue", Argumentation.

"Reasoning Awry: An Introduction to Woods and Walton, Fallacies: Selected Papers 1972-1982" in John Woods and Douglas Walton, Fallacies: Selected Papers 1972-1982 (London: Kings College Publications, 2007) vii-xvi.

“Crossroads of Logic and Ontology: A Modal-Combinatorial Analysis of Why There is Something Rather Than Nothing”, Essays in Logic and Ontology, Dedicated to Jerzy Perzanowski, edited by Jacek Malinowski and Andrzej Pietruszczak (Amsterdam: Rodopi, Pozman Studies in Philosophy and the Humanities 91, 2007), 17–46.

"Introduction: Philosophy of Logic Today", Philosophy of Logic, edited by Dale Jacquette (North-Holland (Elsevier), 2007), 1-12.

"On the Relation of Informal to Symbolic Logic", Philosophy of Logic, edited by Dale Jacquette (North-Holland (Elsevier), 2007), 131-154.

"Animadversions on the Logic of Fiction and Reform of Modal Logic", Mistakes of Reason: Proceedings of a Conference in Honour of John Woods, (Toronto: University of Toronto Press, 2006), 49-63.

"Tarski's Analysis of Logical Consequence and Etchemendy's Criticism of Tarksi's Modal Fallacy", The Lvov-Warsaw School: The New Generation, Poznan Studies in the Philosophy of the Sciences and Humanities 89, edited by Jacek Juliusz Jadacki and Jacek Pasniczek (Amsterdam: Rodopi Editions, 2006), 345-368.

"Dale Jacquette", Masses of Formal Philosophy, edited by Vincent F. Hendricks and John Symons, (New York: Automatic Press / VIP, 2006), 59-81.

"Wittgensteins 'Tractatus' und die Logik der Fiktion", Wittgenstein und die Literatur, edited by John Gibson and Wolfgang Huemer, translated by Martin Suhr (Frankfurt am Main: Surkamp Verlag, 2006), 448-467 (original English version published by Routledge, 2004 below).

"Kripke's Modal Objection to the Description Theory of Reference", We Will Show Them! Essays in Honour of Dov Gabbay, edited by Sergei Artemov, Howard Barringer, Artur d'Avila Garcez, Luis C. Lamb and John Woods (London: Kings College Publications, 2005), 143-168.

"Two Sides of Any Issue", The Uses of Argument: Proceedings of a Conference at McMaster Univeristy 18-21 May 2005, edited by David Hitchcock with Daniel Farr (St. Catherines: Ontario Society for the Study of Argumentation, 2005), 209-217.

"Wittgenstein's Tractatus and the Logic of Fiction", Wittgenstein and Philosophy of Literature, edited by John Gibson and Wolfgang Huemer (London: Routledge, 2004), 305-317.

"Assumption and Mechanical Simulation of Hypothetical Reasoning", Phenomenology and Analysis: Essays on Central European Philosophy, edited by Arkadiusz Chrudzimski and Wolfang Huemer (Frankfurt/Lancaster: Ontos Verlag, 2004), 323-358.

"David Lewis on Meinongian Logic of Fiction", Proceedings of Writing the Austrian Traditions: Relations Between Philosophy and Literature edited by Wolfgang Huemer and Marc-Oliver Schuster (Toronto: University of Toronto Press, Wirth-Institute for Austrian and Central European Studies, University of Alberta, 2003), 101-119.

"Socrates on Rhetoric, Truth, and Courtroom Argumentation in Plato's Apology", Informal Logic at 25: Proceedings of the Windsor Conference, edited by Anthony Blair, Daniel Farr, Hans V. Hansen, Ralph H. Johnson, and Christopher W. Tindale (Windsor: Ontario Society for the Study of Argumentation, 2003), CD-ROM.

"Logic, Philosophy, and Philosophical Logic", A Companion to Philosophical Logic, edited by Dale Jacquette (Blackwell Publishers, 2002), 1-8.

"Modality of Deductively Valid Inference", A Companion to Philosophical Logic, edited by Dale Jacquette (Blackwell Publishers, 2002), 256-261.

"Logic and Philosophy of Logic", A Companion to Philosophical Logic, edited by Dale Jacquette (Blackwell Publishers, 2002), 1-6. "Introduction to Part I" (Classical Logic), 9-11; "Introduction to Part II" (Truth, Propositions, and Meaning), 55-57; "Introduction to Part III" (Quantifiers and Quantificational Theory), 143-145; "Introduction to Part IV" (Validity, Inference,and Entailment), 201-204; "Introduction to Part V" (Modality, Intensionality, and Propositional Attitude), 271-274.

"Mathematics and Philosophy of Mathematics", Philosophy of Mathematics: An Anthology, edited by Dale Jacquette (Blackwell Publishers, 2002), 1-10. "Introduction to Part I" (The Realm of Mathematics), 13-17; "Introduction to Part II" (Ontology of Mathematics and the Nature and Knowledge of Mathematical Truth), 85-89; "Introduction to Part III" (Models and Methods of Mathematical Proof), 165-171; "Introduction to Part IV" (Intuitionism), 261-267; "Introduction to Part V" (Philosophical Foundations of Set Theory), 337-343.

"A History of Early Analytic Philosophy of Language", Analytic Philosophy: Classical Readings, edited by Steven B. Hales (Wadsworth Publishing, 2001), 11-20.

"Diagonalization in Logic and Mathematics", Handbook of Philosophical Logic, 2nd Edition, Volume 11, edited by Dov M. Gabbay and Franz Günthner (Dordrecht: Kluwer Academic Publishing, 2002), 55-147.

"Kripke on Identity and the Description Theory of Reference", The Logica Yearbook 2002, edited by Timothy Childers and Ondrej Majer (Prague: Filosofia, 2003) (Institute of Philosophy, Academy of Sciences of the Czech Republic), 109-116.

"Introduction: Psychologism the Philosophical Shibboleth", Philosophy, Psychology, and Psychologism: Critical and Historical Readings on the Psychological Turn in Philosophy, edited by Dale Jacquette (Kluwer Academic Publishing / Philosophical Studies Series, volume 91, 2003), 1-19; reprinted from Philosophy and Rhetoric.

"Psychologism Revisited in Logic, Metaphysics, and Epistemology", Philosophy, Psychology, and Psychologism: Critical and Historical Readings on the Psychological Turn in Philosophy, edited by Dale Jacquette (Kluwer Academic Publishing / Philosophical Studies Series, volume 91, 2003), 245-262; reprinted from Metaphilosophy.

"Logic, Philosophy, and Philosophical Logic", A Companion to Philosophical Logic, edited by Dale Jacquette (Blackwell Publishers, 2002), 1-8.

"Modality of Deductively Valid Inference", Philosophy of Logic: An Anthology, edited by Dale Jacquette (Blackwell Publishers, 2002), 256-261.

"On the Relation of Informal to Formal Logic", Argumentation and Rhetoric, edited by Hans V. Hansen, Christopher W. Tindale, and Athena V. Colman (St. Catharines: Ontario Society for the Study of Argumentation, 1998), CD-ROM.

"Ignorance is No Excuse (for Deductively Invalid Inference)", Argumentation and Rhetoric, edited by Hans V. Hansen, Christopher W. Tindale, and Athena V. Colman (St. Catharines: Ontario Society for the Study of Argumentation, 1998), CD-ROM.

"Constructibility and the Analysis of Quantifiers in Wittgenstein's Tractatus", The Role of Pragmatics in Contemporary Philosophy: Contributions of the Austrian Ludwig Wittgenstein Society, 20th International Wittgenstein Symposium, edited by Paul Weingartner, Gerhard Schurz and Georg Dorn (Kirchberg am Wechsel: Austrian Ludwig Wittgenstein Society, 1997), 5, Vol. I, 419-426.

"Buridan's Bridge", Zeit und Zeichen, edited by Tilman Borsche, Johann Kreuzer, Helmut Pape, and Guenter Wohlfart, Schriften der Académie du Midi (Munich: Wilhelm Fink Verlag, 1993), 227-241; reprinted from Philosophy 1991 (above).

"Self-Reference and Infinite Regress in Philosophical Argumentation", (with Henry W. Johnstone, Jr.), Argumentation Illuminatyed, edited by Frans H. van Eemeren, Rob Grootendorst, J. Anthony Blair, and Charles A. Willard (Amsterdam: International Society for the Study of Argumentation, 1992), 122-130.

"Validity, Self-Reference, and the Pseudo-Scotus Pseudo-Paradox", Proceedings of the Second International Conference on Argumentation, edited by Frans H. van Eemeren, Rob Grootendorst, J. Anthony Blair, and Charles A. Willard (Amsterdam: International Society for the Study of Argumentation, 1991), Vol. 1A, 211-217.

"Definite Descriptions", "Extensionalism", "Lambda Abstraction", "Mally, Ernst", Handbook of Metaphysics and Ontology, edited by Hans Burkhardt and Barry Smith (Munich and Vienna: Philosophia Verlag, 1991), 2 vols., 201-202; 268-269; 435; 485-486.

"Meinongian Mathematics and Metamathematics", Logic, Philosophy of Science and Epistemology, Proceedings of the Eleventh International Wittgenstein Symposium (Vienna: Hoelder- Pichler-Tempsky, 1987), 109-112.

"Turnstile Operations in Three-Valued Logic", Proceedings of the Fifteenth International Symposium on Multiple-Valued Logic, Institute of Electrical and Electronics Engineers (IEEE), Technical Committee on Multiple-Valued Logic (Silver Spring: Computer Society Press, 1985), 45-48.

"Boole's Logic", Handbook of the History and Philosophy of Logic, edited by Dov M. Gabbay and John Woods (Elsevier Science).

“Deductivism and the Informal Fallacies”, Proceedings of the 2006 Conference of the International Society for the Study of Argumentation (ISSA), edited by Frans van Eemeren and Bart Garssen.

"Logic for Meinongian Object Theory Semantics", Handbook of the History and Philosophy of Logic, edited by Dov M. Gabbay and John Woods, Volume V: Logic from Russell to Gödel (Elsevier Science).

"Developments in Philosophy of Science and Mathematics", History of Continental Philosophy, edited by Daniel Conway, 8 vols., vol. 2 (Acumen).

"Tarski, Alfred", "Fractals", "Modality", Handbook of Mereology, edited by Hans Burkhardt, Guido Imaguire, and Johanna Seibt (Philosophia Verlag).

"Schopenhauer's Philosophy of Logic and Mathematics", Companion to Schopenhauer, edited by Bart Vandenabeele, (Blackwell Publishing).

"Measure for Measure? Wittgenstein on Language Game Criteria and the Paris Standard Meter Bar", Critical Guide to Wittgenstein's Philosophical Investigations, edited by A.M. Ahmed, (Cambridge University Press).

"Preface: After Russell, After Meinong", After "On Denoting': Themes from Russell and Meinong, (edited with Kenneth Blackwell and Nicholas Griffin) (The Bertrand Russell Research Centre).

Review of Hans-Johann Glock, Quine and Davidson on Language, Thought and Reality, Philosophical Investigations, 29, 2006, 97-103.

Review of Paolo Mancosu, Klaus Frovin Jørgensen, and Stig Andur Pedersen, editors, Visualization, Explanation and Reasoning Styles in Mathematics, The Mathematical Intelligencer, 28, 2006, 79-81.

Critical Notice of Danielle Macbeth, Frege's Logic, Canadian Journal of Philosophy, 36, 2006, 609-632.

Review of Anna Sierzulska, Meinong on Meaning and Truth, Notre Dame Philosophical Reviews, (electronic format); http://ndpr.nd.edu/review.dfm?id=5781; 2006.02.17.

Review of Edmund Husserl, Philosophy of Arithmetic: Psychologcial and Logical Investigations with Supplementary Texts from 1887-1901, translated by Dallas Willard, The Review of Metaphysics, 59, 2005, 428-431.

Mathematical Fiction and Structuralism in Chihara's Constructibility Theory, (Review of Charles S. Chihara, A Structural Account of Mathematics), History and Philosophy of Logic, 25, 2004, 319-324.

Review of Dov Gabbay and John Woods, Agenda Relevance: A Study in Formal Pragmatics (A Practical Logc of Cognitive Systems, Volume 1), Studia Logica: An International Journal for Symbolic Logic, 77, 2004, 133-139.

Review of Sun-Joo Shin, The Iconomic Logic of Peirce's Graphs, Transactions of the Charles S. Peirce Society, 39, 2003, 127-133.

Review of Jacek Pasniczek, The Logic of Intentional Objects: A Meinongian Version of Classical Logic, Journal of Symbolic Logic, 64, 1999, 1847-1849.

Review of Laszlo Polos and Michael Masuch, editors, Applied Logic: How, What and Why (Logical Approaches to Natural Language), Studia Logica: An International Journal for Symbolic Logic, 60, 1998, 336-340.

Essay Review of P.M.S. Hacker, Wittgenstein's Place in Twentieth-Century Analytic Philosophy, History and Philosophy of Logic, 18, 1997, 109-114.

Review of Jaakko Hintikka, "Carnap's Work in the Foundations of Logic and Mathematics in a Historical Perspective", Mathematical Reviews, 95f, 1995, 3133.

Review of Andres Rivadulla, "Wahrscheinlichkeitsaussagen, statistische Inferenz und Hypothesen- wahrscheinlichkeit in L. Wittgensteins Schriften der Uebrgangsperiode", Mathematical Reviews, 95i, 1995, 5080.

Review of Robert Audi, Practical Reasoning, Philosophy and Rhetoric, 26, 1993, 85-89.

Review of Douglas N. Walton, Slippery Slope Arguments, History and Philosophy of Logic, 14, 1993, 124-128.

Review of H.G. Callaway, "Logic Acquisition, Usage and Semantic Realism", Mathematical Reviews, 93i, 1993, 4685-4686.

Review of Paul Gochet and Pascal Gribomont, Logique: Volume 1: méthodes pour l'informatique fondamentale, The Review of Metaphysics, 46, 1992, 404-405.

Review of Edward N. Zalta, Intensional Logic and the Metaphysics of Intentionality, Philosophy and Phenomenological Research, 51, 1991, 439-444.

Review of Peter Simons, Parts: A Study in Ontology, Philosophy of Science, 57, 1990, 540-542.

Review of Anthony Palmer, Content and Object: The Unity of the Proposition in Logic and Psychology, History and Philosophy of Logic, 10, 1989, 113-115.

Review of Roy A. Sorensen, Blindspots, The Journal of Speculative Philosophy, 3, 1989, 218-223.

Review of Karel Lambert, Meinong and the Principle of Independence: Its Place in Meinong's Theory of Objects and its Significance in Contemporary Philosophical Logic, International Studies in Philosophy, 20, 1988, 92-93.