List of Richard Sylvan's Works on Logic

Richard Sylvan contributed widely to logic throughout his career. Apart from a series of papers on modal logic(several written with Hugh Montgomery) in the late 1960's early 1970's, most of his work was on non-classical logics, especially their semantics. Early work included a rehabilitation of Alexius Meinong's theory of objects, starting with papers in the 1960's and culminating in the massive Exploring Meinong's Jungle and Beyond (1980). Other work started in the 1960 was on significance and context logic, done mainly in collaboration with Leonard Goddard and culminating in their Logic of Significance and Context (only the first volume of which was ever completed). Probably his most important contribution to logic was the development, in collaboration with Robert Meyer and Val Routley, of the first semantics for relevant logic. Starting in the early 1970's, relevant logic remained a major interest until his death, resulting in many notable publications: including the series of joint papers with Meyer on "Semantics of Entailment"; Relevant Logics and their Rivals (vol. 1: 1983), written jointly with Meyer, Val Routley (now writing under the name Plumwood) and Ross Brady (the second volume was completed by Brady after Sylvan's death); a collection of edited papers, Directions in Relevant Logic (1989); and the posthumously published Sociative Logics and their Applications (2000), edited by Dominic Hyde and Graham Priest. Sylvan's interest in relevant logic expanded into work on paraconsistent logic more generally and into dialethic logic, often in collaboration with Graham Priest (e.g. their jointly edited Paraconsistent Logic, 1989). There were many other interests as well: universal semantics and the ultralogic program in the 1970's and 1980's; work on vagueness in collaboration with Hyde; and work on problems in artificial intelligence.

1960

Gunderson K., and R. Routley.
"Mr Rescher’s Reformulation of the Ontological Proof." Australasian Journal of Philosophy 38:3 (December 1960): 246-252.

1963

Routley R.
"Abstract Sets and Finite Ordinals." Australasian Journal of Philosophy 41:2 (1963): 279-284.

1965

Routley R.
"What numbers are." Logique et Analyse 8 (1965): 196-208.

1966

Goddard L., and R. Routley.
"Use, Mention and Quotation." Australasian Journal of Philosophy 44 (1966): 1-49.

Routley R.
"On a Significance Theory." Australasian Journal of Philosophy 44 (1966): 172-209.

Routley R.
"Some Things do not Exist." Notre Dame Journal of Formal Logic 7:3 (July 1966): 251-276.

Montgomery H., and R. Routley.
"Contingency and Noncontingency Bases for Normal Modal Logic." Logique et Analyse 9 (1966), pp. 318-328.

1968

Montgomery H., and R. Routley.
"Modal Reduction Axioms in Extensions of S1." Logique et Analyse 11 (1968): 492-501.

Montgomery, H., and R. Routley.
"Non-Contingency Axioms for S4 and S5." Logique et Analyse 11 (1968): 422-424.

Montgomery, H., and R. Routley.
"On Systems Containing Aristotle's Thesis." Journal of Symbolic Logic 33:1 (March 1968): 82-96.

Routley, R., and H. Montgomery.
"The inadequacy of Kripke's Semantical Analyses of D2 and D3." Journal of Symbolic Logic 33:4 (December 1968): 568.

Routley, R.
"Decision Procedures and Semantics for C1, E1 and S0.5." Logique et Analyse 11 (1968): 468-471.

Routley, R.
"The Decidability and Semantical Incompleteness of Lemmon's System S0.5." Logique et Analyse 11 (1968): 413-421.

1969

Montgomery, H., and R. Routley.
"Modalities in a Sequence of Normal Noncontingency Modal Systems." Logique et Analyse 12 (1969): 225-227.

Routley, R.
"A Simple Natural Deduction System." Logique et Analyse 12 (1969): 129-152.

Routley, R.
"Existence and Identity in Quantified Modal Logics." Notre Dame Journal of Formal Logic 10:2 (April 1969): 113-149.

Routley, R.
"The Need for Nonsense." Australasian Journal of Philosophy 47:3 (December 1969): 367-383.

1970

Routley, R.
"Decision Procedures and Semantics for Fey's System S2 and Surrounding Systems." Zeitschrift für mathematische Logik und Grundlagen der Mathematik 16 (1970): 165-74.

Routley, R.
"Extensions of Makinson's Completeness Theorems in Modal Logic." Zeitschrift für mathematische Logik und Grundlagen der Mathematik 16 (1970): 239-56.

Routley, R.
"Non-Existence does not Exist." Notre Dame Journal of Formal Logic 11:3 (July 1970): 289-320.

1971

Routley, R.
"A. Trew's 'Incompleteness of a Logic of Routley's'." Review. Mathematical Reviews 41 (1971): 1507.

Routley, R.
"Conventionalist and Contingency-Oriented Modal Logics." Notre Dame Journal of Formal Logic 12:2 (April 1971): 131-52.

Routley, R.
"Domainless Semantics for Free, Quantification and Significance Logics." Logique et Analyse 14 (1971): 603-626.

1972

Routley, R., and V. Routley.
"The Semantics of First Degree Entailment." Nous 6 (1972): 335- 359.

Meyer, R.K., and R. Routley.
"Algebraic Analysis of Entailment I." Logique et Analyse 15 (1972): 407-428.

Meyer, R.K., and R. Routley.
"A Kripke Semantics for Entailment." Abstract. Journal of Symbolic Logic 37:2 (June 1972): 442-443.

Meyer, R.K., and R. Routley.
"The Semantics of Entailment II." Journal of Philosophical Logic 1 (February 1972): 53-73.

Meyer, R.K., and R. Routley.
"The Semantics of Entailment III." Journal of Philosophical Logic 1 (May 1972): 192-208.

Routley, R.
"A Semantical Analysis of Implication System I, and of the First Degree of Entailment." Mathematische Annalen 196 (1972): 58-84.

Routley, R.
"Vredenduin's System of Strict Implication." Logique et Analyse 15 (1972): 435- 437.

1973

Brady, R., and R. Routley.
"Don't Care was Made to Care." Australasian Journal of Philosophy 51:3 (December 1973): 211-225.

Goddard, L., and R. Routley.
Logic of Significance and Context, Volume 1. Edinburgh: Scottish Academic Press 1973, 641 pages.

Routley, R., and V. Routley.
"Compromise in the Wilderness Battle." The Canberra Times, 13 January 1973, p.9

Meyer, R.K., and R. Routley.
"An Undecidable Relevant Logic." Zeitschrift für mathematische Logic und Grundlagen der Mathematik 19 (1973): 389-397.

Meyer, R.K., and R. Routley.
"Classical Relevant Logics I." Studia Logica 32 (1973): 51-68.

Meyer, R.K., and R. Routley.
"The Semantics of Entailment." In H. Leblanc, ed., Truth, Syntax and Modality: Proceedings of the Temple University Conference on Alternative Semantics. Amsterdam: North Holland 1973, pp. 199-243.

Translated into Russian. Moscow, 1981, pp. 363-423.

Routley, R., and V. Routley.
"Ideal Objects on a Meinongian Theory of Universals." Proceedings of the XVth World Congress of Philosophy Varna, 5 (1973).

Routley, R., and V. Routley.
"Rehabilitating Meinong's Theory of Objects." Revue Internationale de Philosophie 27:104-105 (1973): 224-54.

Routley, R., and V. Routley.
"Ryle's Reductio Ad Absurdum Argument." Australasian Journal of Philosophy 51:2 (August 1973): 124-38.

1974

Meyer, R.K., and R. Routley.
"Classical Relevant Logics II." Studia Logica 33:3 (1974): 183-194.

Meyer, R.K., and R. Routley.
"E is a Conservative Extension of EI." Philosophia 4:2-3 (April-July 1974): 223-49.

Routley, R., and R. Wolf.
"No Rational Sentential Logic has a Finite Characteristic Matrix." Logique et Analyse 17 (1974): 317-321.

Routley, R., and V. Routley.
"Degree of Conclusiveness of Arguments, and a new Probability Logic." Abstract. Journal of Symbolic Logic 39:1 (March 1974): 207.

Routley, R., and V. Routley.
"The Semantics of Belief and the Laws of Thought and Myth." Abstract. Journal of Symbolic Logic 39:1 (March 1974): 206-207.

Routley, R.
"Another 'Fatal' Objection to Meinongian Objects." Philosophical Studies 25 (1974): 131-135.

Routley, R.
"A Rival Account of Deductibility and Logical Consequence." Reports on Mathematical Logic 3 (1974): 41-52.

Routley, R.
"Intensional Quantification and Choice in Intensional Logics." Abstract. Journal of Symbolic Logic 39 (March 1974): 207.

Routley, R., R.K. Meyer and L. Goddard.
"Choice and Descriptions in Enriched Intensional languages-I." Journal of Philosophical Logic 3 (1974): 291-316.

Reprinted in:

E. Morscher, J.Czermak and P. Weingartner, eds., Problems in Logic and Ontology Graz: Akademische Druk-u Verlaganstalt 1977, pp. 147-172.

Routley, R.
"Semantical Analyses for Propositional Systems of Fitch and Nelson." Studia Logica 33:3 (1974): 283-297.

1975

Routley, R., and R.K. Meyer.
"Towards a General Semantical Theory of Implication and Conditionals. I. Systems with Normal Conjunction and Disjunction and Aberrant and Normal Negations." Reports on Mathematical Logic 4 (1975): 67-90.

Routley, R., and V. Routley.
"Meaning as Semantical Superstructure: A Universal Theory of Meaning, Truth and Denotation?" Philosophica 19 (1975): 185-235.

Routley, R., and V. Routley.
"The Role of Inconsistent and Incomplete Theories in the Logic of Belief." Communication and Cognition 8 (1975): 185-235.

Routley, R.
Review of Eight Articles in English and German by Riddler, by Ohnishi, and by Matsumoto, on Gentzen Methods in Modal Logic. Journal of Symbolic Logic 40:1 (March 1975): 97-98.

Routley, R.
"Universal Semantics?" Journal of Philosophical Logic 4 (1975): 327-56.

1976

Routley, R., and H. Montgomery.
"Algebraic Semantics for S2 and Necessitated Extensions." Notre Dame Journal of Formal Logic 17:1 (January 1976): 44-58.

Routley, R., and R.K. Meyer.
"Dialectical Logic, Classical Logic and the Consistency of the World." Studies in Soviet Thought 16 (1976): 1-25.

Italian Translation:

"Logica Dialettica, Logica Classica e Non-Contraddittorietà del Mondo." In D. Marconi, ed., La Formalizzazione della Dialettica. Torino: Rosenburg and Sellier 1979, pp. 324-353.

Routley, R., and R.K. Meyer.
"Every Sentential Logic has a Two-Valued Worlds Semantics." Logique et Analyse 19 (1976): 345-365.

Routley, R.
"The Durability of Impossible Objects." Inquiry 19 (1976): 247-253.

Routley, R.
"The Semantical Metamorphosis of Metaphysics." Australasian Journal of Philosophy 54:3 (December 1976): 187-205.

1977

Meyer, R.K., and R. Routley.
"Extensional Reduction I." The Monist 60:3 (July 1977): 355-369.

Routley, R., and A. Loparić.
"Semantical Investigation of Arruda-Da Costa P Systems and Adjacent Nonsubstitutional Relevant Systems." Bulletin of the Section of Logic, Polish Academy of Sciences 6:3 (1977): 134-136.

Routley, R., and R.K. Meyer.
"Towards a General Semantical Theory of Implication and Conditionals II: Improved Negation Theory and Propositional Identity." Reports on Mathematical Logic 9 (1977): 47-62.

Routley, R., R.K. Meyer and L. Goddard.
"Choice and Descriptions in Enriched Intensional Languages-I." -->CORRECT? Journal of Philosophical Logic 3 (1974): 291-316.

Reprinted in:

E. Morscher, J.Czermak and P. Weingartner, eds., Problems in Logic and Ontology Graz: Akademische Druk-u Verlaganstalt 1977, pp. 147-172.

Routley, R.
"Choice and Descriptions in Enriched Intensional Languages-II." In E. Morscher, J.Czermak and P. Weingartner, eds., Problems in Logic and Ontology. Graz: Akademische Druk-u Verlaganstalt 1977, pp. 173-204.

Routley, R.
"Choice and Descriptions in Enriched Intensional Languages-III." In Problems in Logic and Ontology 1977, pp. 205-222.

Routley, R.
"Postscript: Some Setbacks on the Choice and Descriptions Adventure." In Problems in Logic and Ontology 1977, pp. 223-227.

Routley, R.
"Ultralogic as Universal?" Relevance Logic Newsletter 2 (1977): 50-90 and 138-75.

Reprinted in:

In Exploring Meinong's Jungle and Beyond (1980) pp.892-962

Routley, R.
"Welding Semantics for Weak Strict Modal Logics into the General Framework of Modal Logic Semantics." Zeitschrift für mathematische Logik und Grundlagen der Mathematik 23 (1977): 497-510.

1978

Routley, R., and A. Loparić.
"Semantical Analyses of Arruda-Da Costa P Systems and Adjacent Non-Replacement Systems." Studia Logica 37:4 (1978): 301-320.

Routley, R.
"An Inadequacy of Kripke-Semantics for Intuitionistic Quantificational Logic." Bulletin of the Section of Logic, Polish Academy of Sciences 7 (1978): 61-67.

Routley, R.
"Choice of Logical Foundations: Ultramodal Logic and Dialectical Foundations." Abstract. Journal of Symbolic Logic 43:2 (1978): 363-364.

Routley, R.
"Constant Domain Semantics for Quantified Non-Normal Modal Logics and for Certain Quantified Quasi-Entailment Logics." Reports on Mathematical Logic 10 (1978): 103-121.

Routley, R.
"Dialectical Set Theory." Abstract. Journal of Symbolic Logic 43:2 (1978): 363.

Routley, R.
"Lewis' Calculus of Ordinary Inference (as amended 1920 and 1977)." Bulletin of the Section of Logic, Polish Academy of Sciences 7:2 (1978): 4-11.

Routley, R.
"Semantics for Connexive Logics I." Studia Logica 37:4 (1978): 393-412.

Routley, R.
"Ultramodal Logic as Universal." Abstract. Journal of Symbolic Logic 43:2 (1978): 355-356.

1979

Meyer, R.K., R. Routley and J.M. Dunn.
"Curry's Paradox." Analysis 39:3 (June 1979): 124- 128.

Routley, R.
"Alternative Semantics for Quantified First Degree Relevant Logic." Studia Logica 38:2 (1979): 211-231.

Routley, R., and N. Griffin.
"Towards a Logic of Relative Identity." Logique et Analyse 22 (1979): 65-83.

Routley, R., and V. Routley.
"Some Bad Arguments for and Against Conventionalism." International Logic Review 19-20 (December 1979): 84-90.

Routley, R., and V. Routley.
"The (Logical) Importance of not Existing." Dialogue 18:2 (1979): 129-65.

Routley, R.
"Dialectical Logic, Semantics, and Metamathematics." Erkenntnis 14 (1979): 301- 331.

Routley, R.
"Repairing Proofs of Arrow's General Impossibility Theorem and Enlarging the Scope of the Theorem." Notre Dame Journal of Formal Logic 20:4 (October 1979): 879-90.

Routley, R.
"The Semantical Structure of Fictional Discourse." Poetics 8 (1979): 3-30.

Routley, R.
"The Theory of Objects as Commonsense." Grazer Philosophische Studien 9 (1979): 1-22.

1980

Routley, R.
"An Alternative Angle on the Humanities." Cooperative Education Newsletter, University of Victoria (Fall 1980): 2-3.

Routley, R., and A. Loparić.
"Semantics for Quantified Relevant Logics Without Replacement." A.I. Arruda, DaCosta, N.C.A., and A.M. Sette, eds., Proceedings of the Third Brazilian Conference on Mathematical Logic, Sao Paulo: Sociedade Brasileira de Lógica, 1980, pp 263-280.

Routley, R.
"Review of Entailment by A.R. Anderson and N.D. Belnap." Australasian Journal of Philosophy 58:4 (December 1980): 405-408.

Routley, R.
Exploring Meinong's Jungle and Beyond: An Investigation of Noneism and the Theory of Items. Canberra: Department of Philosophy Monograph Series #3, Research School of Social Sciences, Australian National University, 1980. 1035 pages.

Routley, R.
"On the Impossibility of an Orthodox Social Theory and an Orthodox Solution to Environmental Problems." Logique et Analyse 23 (1980): 145-66.

Routley, R.
"Problems and Solutions in the Semantics of Quantified Relevant Logics I." In R. Chuaqui, A.I. Arruda, and N.C.A. DaCosta, eds., Mathematical Logic in Latin America. Amsterdam: North-Holland, 1980. pp. 305-40.

Routley, R.
"The Choice of Logical Foundations: Non-Classical Choices and the Ultralogical Choice." Studia Logica 39:1 (1980): 77-98.

1981

Routley, R.
"Alleged Problems in Attributing Beliefs and Intentionality to Animals." Inquiry 24:4 (December 1981): 385-417.

Routley, R.
"How Disjunctive Syllogism can be Seen as a Fallacy of Relevance." Bulletin of the Section of Logic, Polish Academy of Sciences 10:4 (1981): 144-151.

Routley, R.
"Necessary Limits to Knowledge: Unknowable Truths." In E. Morscher, Neumaier, and Zecha, eds., Philosophie als Wissenschaft/Essays in Scientific Philosophy. Bad Reichenhall: Des Sammelbandes Comes Verlag, 1981, pp. 93-113.

1982

Routley, R., and G. Priest.
"Lessons from Pseudo-Scotus." Philosophical Studies 42:2 (September 1982): 189-99.

Routley, R., and V. Plumwood.
"Negation and Contradiction in Wittgenstein." In W. Leinfellner, E. Kraemer and J. Schank, eds., Language and Ontology: Proceedings of the Sixth International Wittgenstein Symposium. Hingham: Verlag Holder-Pichler-Tempsky, 1982, pp. 471-4.

Routley, R., and V. Plumwood.
"The Inadequacy of the Actual and the Real: Beyond Empiricism, Idealism and Mysticism." in W. Leinfellner et.al. Language and Ontology. Vienna: Verlang Holder-Pichler-Tempsky, 1982, pp. 49-67.

Routley, R.
"On What There is not." Philosophy and Phenomenological Research 43:2 (December 1982): 151-177.

Routley, R., V. Plumwood, R.K. Meyer, and E.P. Martin.
"On the Philosophical Basis of Relevant Logic Semantics." Journal of Non-Classical Logic 1 (1982): 71-105.

Routley, R., V. Plumwood, R.K. Meyer, and R.T. Brady.
Relevant Logics and Their Rivals, Vol I: The Basic Semantical Theory. Atascadero: Ridgeview, 1982, 460 pages.

1983

Sylvan, R., and G. Priest.
"An Impressionistic Survey of Paraconsistent Positions and Theories." Collected Papers of the 1982 Foundations of Logic Conference, University of Waterloo, 1983.

Sylvan, R., and G. Priest.
"On Paraconsistency." Canberra: Research Papers in Logic 13, 1983. 231 pages.

Reprinted as:

Research Series in Logic and Metaphysics #1, 1984, 235 pages.

Routley, R., and V. Routley.
"Semantical Foundations of Value Theory." Nous 17:3 (September 1983): 441-456.

Routley, R.
"Introduction: Nonclassical Logic." Logique et Analyse 102/103 (1983): 121, 253.

Routley, R.
"Relevantism and the Problem as to When Material Detachment and the Disjunctive Syllogism can be Correctly Used." Research Papers in Logic #12, 1983

Routley, R.
"Research in Logic in Australia, New Zealand and Oceania: Its Brief History and its Present State." Research Papers in Logic #14, Research School of Social Sciences, 1983.

Reprinted in:

Ruch Filozoficzny 41:2-3 (1984): 127-162.

Sylvan, R., and R.K. Meyer.
"Relevant Logics and their Semantics Remain Viable and Undamaged by Lewis's Equivocation Charge." Topoi 2 (1983): 238-249.

Sylvan, R., and V. Routley.
"Moral Dilemmas and the Logic of Deontic Notions." Discussion Papers in Environmental Philosophy #6, 1983, 42 pages.

Revised version in Routley, R., G. Priest, and J. Norman, Paraconsistent Logic: Essays on the inconsistent. Munich: Philosophia Verlag, 1989, pp. 653-690.

Sylvan, R.
"Nihilisms and Nihilist Logics." Discussion Papers in Environmental Philosophy #4, 1983, 53 pages;

Reprinted and Extended in:

Apostel, L., Vandamme, F.J., Pinxten, R., and I. Van Dooren, The Philosophy of Leo Apostel. Ghent: Communication & Cognition, 1989, pp.407-452.

Sylvan, R., R.T. Brady, R.K. Meyer, and C. Mortensen.
"Algebraic Analyses of Relevant Affixing Logics, and Other Polish Connections." Canberra: Research Papers in Logic #16, 1983, 56 pages.

1984

Routley, R., and Graham Priest, eds.
"Paraconsistent Logics." Studia Logica 43 :1-2 (1984), 220 pages.

Routley, R., and Graham Priest.
"Introduction: Paraconsistent Logics." Studia Logica 43:1-2 (1984): 3-16.

Routley, R.
"Relevantism, Material Detachment, and the Disjunctive Syllogism Argument." Canadian Journal of Philosophy 14:2 (June 1984): 167-188.

Routley, R.
"The American Plan Completed: Alternative Classical-Style Semantics Without Stars, for Relevant and Paraconsistent Logics." Studia Logica 43:1-2 (1984): 125-156.

Sylvan, R.
"How Science and Myth and Fiction Step Beyond the Actual and Sometimes Beyond the Possible." Research Series in Unfashionable Philosophy, #1, 1984, 33 pages.

German Translation:

Sylvan, R.
"Wissenschaft, Mythos and Fiktion: Wie sie die Grenzen des Wirklichen überschreiten und manchmal gar des Möglichen." Zeitschrift für Semiotik (special issue entitled Zeichen and Fiktion) 9:1-2 (1987): 129-152.

Sylvan, R.
"Maximizing, Satisficing, Satisizing: Differences in Real and Rational Behaviour Under Rival Paradigms." Discussion Papers in Environmental Philosophy #10 (1984), 27 pages.

Sylvan, R.
"Science and Science: Relocating Stove and the Modern Irrationalists." Research Series in Unfashionable Philosophy #1, 1984, 20 pages.

Reprinted in:

Critical Philosophy 2 (1985). pp. 16-28.

Revised version in Bulgarian translation, Filosofska Misãl 11 (1988): 60-68.

Polish Translation:

"Nauka a Nauka." In K. Jodkowski, ed., Realizm Racjonalnosc Relatywizm 7. Lublin: MCS University, 1991, pp. 131-149.

1985

Routley, R., and V. Plumwood.
"Negation and Contradiction." In X. Caicedo and R. Chuaqui, eds., Proceedings of the Fifth Latin American Symposium on Mathematical Logic. Bogota: Sociedad Colombiana de Matemática, 1985, 201-231.

Sylvan, R.
"Introducing Polylogue Theory." Philosophica 35 (1985): 89-112.

Sylvan, R.
"Philosophy, Politics and Pluralism I. Relevant Modellings and Arguments." Research Series in Logic and Metaphysics #2, 1985, 48 pages.

Reprinted in:

Journal of Non-classical Logic 4 (May 1987): 57-107.

Sylvan, R.
"Prospects for Regional Philosophies in Australia." Australasian Journal of Philosophy 63:2 (June 1985): 188-204.

Sylvan, R.
"Towards a CosmoLogical Synthesis." Research Series in Unfashionable Philosophy #2, 1985, 42 pages.

Reprinted in:

Grazer Philosophische Studien 25/26:5 (1986): 135-178.

1987

Petit, P., R. Sylvan, and J, Norman, eds.
Metaphysics and Morality: Essays in Honour of J.C.C. Smart. Oxford: Basil Blackwell, 1987, 212 pages.

Sylvan, R.
"A Generous Jainist Interpretation of Core Relevant Logics." Bulletin of the Section of Logic, Polish Academy of Sciences 16:2 (June 1987): 58-67.

Sylvan, R.
"A Relevant Invalidity in Curry's Foundations." Bulletin of the Section of Logic, Polish Academy of Sciences 16:1 (March 1987): 51-53.

Sylvan, R.
"Establishing the Correspondence Theory of Truth and Rendering it Coherent." In J.T.J. Srzednicki, ed., Stephan Körner - Philosophical Analysis and Reconstruction. Boston: Martinus Nijhoff Publishers, 1987, pp. 75-83.

Sylvan, R.
"Language, Thought and Representation of 'the' World." Revue Internationale de Philosophie 160 (1987): 64-96.

1988

Sylvan, R., and N. da Costa.
"Cause as an Implication." Studia Logica 47:4 (December 1988): 413-428.

Sylvan, R., and G. Priest.
"Answering Another Alleged Dilemma Destroying Dialethism." Bulletin of the Section of Logic 17:1 (1988): 42-52.

Sylvan, R., and L. Goddard.
"Reasoning I. Reason for, and also Against." Abstract. Journal of Symbolic Logic 53:1 (March 1988): 334;

Reprinted in:

Artificial Intelligence in Australia (1988) 37.

Sylvan, R., and N.C.A. da Costa.
"Cause as an Implication." Abstract. Journal of Symbolic Logic 53 (1988): 334.

Sylvan, R.
"Assorted Semantics." Abstract. Journal of Symbolic Logic 53:1 (March 1988): 334.

Sylvan, R.
"Frame Problems of Artificial Intelligence: Relevance and Alternative Structures." Abstract. Artificial Intelligence in Australia (1988): 31.

Sylvan, R.
"Intuitionistic Logic - Subsystem of, Extension of, or Rival to, Classical Logic?" Philosophical Studies 53:1 (January 1988): 147-151.

Sylvan, R.
"Mind and its Orthodox Misplacement in Nature." Abstract. Artificial Intelligence in Australia (1988) 32.

Sylvan, R.
"Radical Pluralism - an Alternative to Realism, Anti-Realism and Relativism." In R. Nola, ed., Relativism and Realism in Science. Dordrecht: Kluwer, 1988, 253-291.

Sylvan, R.
"Relevant Containment Logics and Certain Frame Problems of AI." Logique et Analyse 121-122 (March-June 1988): 11-25.

Sylvan, R.
"Relevant Containment Logics and Frame Problems." In J.S. Gero and R. Stanton, eds., Artificial Intelligence: Developments and Applications. Amsterdam: North Holland, 1988, pp. 169-181.

Sylvan, R.
"Supplanting Maximization and Other Utilitarian Assumptions, in Western Ethical Ideology: A Satisfying Alternative to Bretano's Foundations." La Scuola di Brentano. Dordrecht: Kluwer, 1988, pp. 167-194. Also says PI Topoi 88Supp 2 167-194

1989

Routley, R., G. Priest, and J. Norman.
Paraconsistent Logic: Essays on the Inconsistent. Hamden: Philosophia, 1989, 729 pages.

Routley, R., and G. Priest.
"First Historical Introduction: A Preliminary History of Paraconsistent and Dialethic Approaches." Paraconsistent Logic, 1989, 3-75.

Sylvan, R.
"An Outline of the History of (Logical) Dialectic." Paraconsistent Logic, 1989, 76-98.

Routley, R., and G. Priest.
"Systems of Paraconsistent Logic." Paraconsistent Logic, 1989, 151-186.

Routley, R., and G. Priest.
"Applications of Paraconsistent Logic." Paraconsistent Logic, 1989, 367-393.

Sylvan, R., and R. Brady.
"The Non-Triviality of Extensional Dialectical Set Theory." Paraconsistent Logic, 1989, 415-436.

Routley, R. and G. Priest
"The philosophical Significance and Inevitability of Paraconsistency." Paraconsistent Logic, 1989, 583-539.

Routley, R. and V. Plumwood
"Moral Dilemmas and the Logic of Deontic Notions." Paraconsistent Logic, 653-690.

Routley, R., and G. Priest.
"Contradiction, Assertion and 'Frege's Point'." Analysis 49:1 (January 1989): 23-26.

Sylvan, R and I. Urbas.
"Factorisation Logics". Canberra: Research series in Logic and Metaphysics #5, 1989, 50 pages.

Sylvan, R., and I. Urbas.
"Prospects for Decent Relevant Factorization Logics." Journal of Non-classical Logic 6 (1989): 63-79.

Sylvan, R. and J. Norman, eds.
Directions in Relevant Logic: Reason and Argument Series. London: Kluwer: 1989, 453 pages.

Sylvan, R., and J. Norman.
"Introduction: Routes in Relevant Logic." Directions in Relevant Logic, 1989, 1-24.

Sylvan, R.
"Philosophical and Linguistic Inroads: Multiply Intensional Relevant Logics." in Sylvan, R. and J. Norman, eds. Directions in Relevant Logic: Reason and Argument Series. London: Kluwer: 1989, 269-304.

Sylvan, R.
"Semantics unlimited I: A Synthesis of Relevant Implication and Entailment with Non-Transmissable Functions Such as Belief, Assertion and Perception." Directions in Relevant Logic, 1989, 327-376.

Sylvan, R.
"Conclusion: Further Directions in Relevant Logics." Directions in Relevant Logics, 1989, 339-437.

Sylvan, R.
"Bystander's Guide to Sociative Logics." Canberra: Research Series in Logic and Metaphysics #4, 1989, 147 pages.

Sylvan, R.
"Idealism and Coherence, one Rehabilitation Attempt." Canberra: Research series in Unfashionable Philosophy, #3, 1989, 54 pages.

Reprinted in part in:

"On Making a Coherence Theory of Truth True", Philosophica, 46 1990, pp. 30-54

Sylvan, R, L. Goddard and Da Costa.
"Reason, Cause, and Relevant Containment." Canberra: Research Series in Logic and Metaphysics #3, 1989, 81 pages.

Sylvan, R.
"Modern Myths Concerning Rationality: the Imperatives of Consistency and (Constrained) Maximality." In S. Biderman and B. Scharfstein, eds., Rationality and Irrationality: East and West. Brill, 1989.

Sylvan, R.
"Uniform Relational Logics for all Lewis, Lemmon and Feys Modal Logics - With More on the Virtues of Weakness and Nonnormality." Journal of Non-classical Logic 6 (1989): 19-40.

1990

Sylvan, R., Fuhrmann, and J. Los.
"Assertion and Commitment and Conditional Obligation." Canberra: Reseach Series in Logic and Metaphysics, 1990, 60 pages.

Sylvan, R.
"Relevant Conditionals: Integrating Semantics for One and Two Place Theories and Elaborating the Theories." Abstract. Journal of Symbolic Logic 1990.

Sylvan, R.
"Variations on Da Costa C Systems and Dual-Intuitionistic Logics I. Analyses of Cω and CCω." Studia Logica 49 (March 1990): 47-65.

1991

Sylvan, R., and G. Priest.
"Much Simplified Semantics for Basic Relevant Logics." Abstract. Journal of Symbolic Logic 56:1 (March 1991): 381-382.

Sylvan, R., and I. Urbas.
"Paraconsistent Classical Logic." Abstract. Journal of Symbolic Logic 56:1 (March 1991): 382.

Sylvan, R., and R. Nola.
"Confirmation Without Paradoxes." In G. Schurz and G. Dorn, eds., Advances in Scientific Philosophy. Atlanta: Rodopi, 1991, pp. 5-44.

Sylvan, R.
"Existence II: Existence and Nonexistence." In L. Burkhardt and B. Smith, eds., Handbook of Metaphysics and Ontology. Munich: Philosophia Verlag, 1991, pp. 261-263.

Sylvan, R.
"Ontology of Nature." Handbook of Metaphysics and Ontology, 599-602.

Sylvan, R.
"Relativism." Handbook of Metaphysics and Ontology, 783-785.

Sylvan, R.
"Relevant Logics." Handbook of Metaphysics and Ontology, 787-789.

Sylvan, R.
"Sistology." Handbook of Metaphysics and Ontology, 837-840.

Sylvan, R.
"Future Generations." In A. Dobson, ed., The Green Reader. London: André Deutsch, 1991, 250-252.

Sylvan, R.,
"On Interpreting Truth Tables and Relevant Truth Table Logic." Abstract. Journal of Symbolic Logic 56:1 (March 1991): 381.

Sylvan, R.,
"On the Foundations of Process Theory." Abstract. Journal of Symbolic Logic 56 (1991): 113.

Sylvan, R.
"Relevant Conditionals: Integrating Semantics for One and Two Place Theories and Elaborating the Theories." Abstract. Journal of Symbolic Logic 56 (1991): 113-114.

1992

Sylvan, R. and G. Priest.
"Simplified semantics for basic relevant logics." Journal of Philosophical Logic 21:2 (May 1992): 217-232.

Sylvan, R.
"Blending Semantics for IF as a One-Place Assertive With Semantics for the Conditional." Bulletin of Logic, Polish Academy of Sciences 21:2 (June 1992): 67-71.

Sylvan, R.
"Grim Tales Retold: How to Maintain Ordinary Discourse About - and Despite - Logical Embarrassing Notions and Totalities." Logique et Analyse 35 (1992): 349-374.

Sylvan, R.
"On Interpreting Truth Tables and Relevant Truth Table Logic." Notre Dame Journal of Formal Logic 33:2 (Spring 1992): 207-215.

Sylvan, R.
"Process and Action: Relevant Theory and Logics." Studia Logica 51:3-4 (1992): 379-437.

Sylvan, R.
"Significant Moments in the Development of Australian Logic: in Critical Appreciation of Leonard Goddard's Major Contribution." Logique et Analyse 137-138 (March-June 1992): 5-44.

1993

Sylvan, R. and D. Hyde.
"Ubiquitous Vagueness Without Embarrassment: Logic Liberated and Fuzziness Defuzzed (i.e. Respectibilized)." Acta Analytica 8:10 (1993): 7-29.

Sylvan, R., and I. Urbas.
"Paraconsistent Classical Logic." Logique et Analyse 141-142 (1993): 3-24.

1994

Sylvan, R., and R. Nola.
"The Irrelevance of Grue." Explorations in Knowledge 11: 2 (1994):1-11.

Sylvan, R.
"Freedom Without Determinism: Decent Logics of Relevance and Necessity Applied to Problems of Free Will." Acta Analytica 9:13 (1994): 7-32.

1995

Goddard, L., and R. Sylvan.
"Relevance and Reasoning. Part I: Relevance in Discourse and logic." Dialogue and Universalism 5:5 (1995): 37-63.

Sylvan, R.
"Re-Exploring Item-Theory." Grazer Philosophische Studien 50 (1995): 47-85.

1996

Sylvan, R., and Jack Copeland.
"Heresies of Computability." Abstract. Journal of Symbolic Logic 61 (1996): 20.

Sylvan, R., and Jair Abe.
"General Annotated Logics, With an Introduction to Full Accounting Logic." Abstract. Journal of Symbolic Logic 61 (1996).

Sylvan, R.
"Meinong." In T. Mautner, ed., A Dictionary of Philosophy. Cambridge: Blackwell, 1996, 261-263.

Sylvan, R.
"Paraconsistent Logic." A Dictionary of Philosophy, 1996, p. 309.

Sylvan, R.
"Relevance." A Dictionary of Philosophy, 1996, p. 364.

Sylvan, R.
"Relevant Logic." A Dictionary of Philosophy, 1996, p. 364-5.

Sylvan, R.
"What Limits to Thought, Inquiry and Philosophy?" Manuscrito (1996).

Sylvan R.
"Other Withered Stumps to Time", in B. J. Copeland (ed.)m Logic and Reality. Essays on the Legacy of Arthur Prior. Oxford: Clarendon Press, 1996, pp.111-130.

1997

Sylvan, R.
"Relevant Conditionals, and Relevant Application Thereof." In S. Akama, ed., Logic, Language and Computation. Boston: Kluwer, 1997, 191-244.

Sylvan, R.
Transcendental Metaphysics: From Radical to Deep Plurallism. Cambridge: White Horse Press, 1997, 525 pages.

Sylvan, R.
"Issues in Regional Philosophy. Austrian Philosophy? And its Austral Image?" in K. Lehrer and J. C. Marek (ed.), Austrian Philosophy Past and Present. Boston: Kluwer, 1997, pp. 147-166.

1999

Copeland, J. and R. Sylvan.
"Beyond the Universal Turing Machine." Australasian Journal of Philosophy 77:1 (March 1999): 46-66.

Sylvan, R.
"What is that Item Designated Negation?" in D. M. Gabbay and H. Wansing (eds.), What Is Negation? Boston: Kluwer, 1999, pp. 299-324.

2000

Sylvan, R.
Sociative Logics and their Applications: Essays by the Late Richard Sylvan. D. Hyde and G. Priest, eds. Aldershot: Ashgate, 2000.

2003

Sylvan, R., R.K. Meyer, R. Brady and V. Plumwood.
Relevant Logic and their Rivals. Vol. 2 Ed. by R. Brady (Aldershot: Ashgate, 2003), 425 pp.

Sylvan, R., and V. Plumwood.
"Non-Normal Relevant Systems." In Relevant Logics and their Rivals, Volume II, pp. 10-16.

Sylvan, R., R.K. Meyer and V. Plumwood.
"Multiplying Connectives and Multiply Intensional logics." In Relevant Logics and their Rivals, Volume II, pp. 17-37.

Sylvan, R., and V. Plumwood.
"Operational Semantics." In Relevant Logics and their Rivals, Volume II, pp. 38-71.

Sylvan, R., R.K. Meyer, R. Brady, C. Mortensen, and V. Plumwood.
"The Algebraic Analysis of Relevant Affixing Systems." In Relevant Logics and their Rivals, Volume II, pp. 72-140.

Sylvan, R., A. Loparić, V. Plumwood
"The More General Semantical Theory of Implication and Conditionality." In Relevant Logics and their Rivals, Volume II, pp. 141-191.

Meyer, R.K., and R. Sylvan.
"Appendix: Existentional Reduction II." In R. Brady, ed., Relevant Logics and their Rivals, Volume II. pp. 352-407.