An international symposium on
		   THE DEVELOPMENT OF MODERN LOGIC
		    Themes in the History of Logic

			    June 4-6, 1998

		    Lecture Hall 5, Main Building,
	       University of Helsinki, Fabianinkatu 33


Organizers: The Philosophical Society of Finland, 
            The Department of Philosophy, University of Helsinki

Organizing Committee: Leila Haaparanta, Ilkka Niiniluoto, Risto Vilkko


Thursday, June 4:

10.00 Opening of the Symposium: Ilkka Niiniluoto; Leila Haaparanta  

10.15 G.H. von Wright (University of Helsinki): 
      The Origin and the Development of Deontic Logic: a Personal View

11.15 Richmond Thomason (University of Pittsburgh): 
      Representing and Reasoning with Contexts

12.15 Lunch Break

13.45 Tuomo Aho and Mikko Yrjönsuuri (University of Helsinki): 
      Late Medieval Views on Natural Consequence

14.45 Simo Knuuttila (University of Helsinki): Luther's View of Logic

15.15 Coffee Break

15.45 Gino Roncaglia (University of Rome): 
      Melanchthon's Logic and Its Influence on Late 
      Sixteenth and Seventeenth Century Logic

16.45 Mirella Capozzi (University of Rome): 
      Certainty, Probability and Dialectic in Kant's Logic

17.45 Tapio Korte (University of Turku): 
      On the Relationship between Categorical and
      Hypothetical Judgements in German Logic after Kant


Friday, June 5:

9.00 Risto Vilkko (University of Helsinki): 
     Just Before the "Logical Question"

9.30 Volker Peckhaus (University of Erlangen): 
     Nineteenth Century Logic Between Philosophy and Mathematics

10.30 Coffee Break

11.00 Göran Sundholm (University of Leiden): 
      Marginalia Fregeana: Five Contributions to Einfluesselehre

12.00 Eva Picardi (University of Bologna): 
      Peano, Frege and Russell on the "Indefinables" of Logic

13.00 Lunch Break

14.00 Leila Haaparanta (University of Helsinki, University of Tampere):
      On the Relations between Logic and Epistemology: 
      Frege, Husserl and the Sources of Knowledge

14.30 Ari Maunu (University of Turku): Some Fregean Modal Considerations

15.00 Risto Hilpinen (University of Miami, University of Turku): 
      On the Semantics of Modal Logic: C.S. Peirce's Analysis of 
      Modalities and Conditionals

16.00 Coffee Break

16.30 Christian Thiel (University of Erlangen): 
      Changing Attitudes Towards Formal Systems of Logic: 
      the Case of Leopold Löwenheim

17.30 Jaakko Hintikka (University of Boston): 
      Gödel's Philosophy of Logic


Saturday, June 6:

9.45 Paolo Mancosu (University of California, Berkeley, 
     Wissenschaftskolleg zu Berlin):
     Heinrich Behmann in Göttingen 1918

10.45 Coffee Break

11.00 Richard Zah (University of California, Berkeley): 
      Bernays' Early Contributions in Logic

12.00 Sandy Zabell (Northwestern University): 
      Carnap's Continuum of Inductive Methods Revisited

13.00 Lunch Break

14.00 Stephen Read (University of St.Andrews): 
      On the Philosophy of Alternative Logics

15.00 Gabriel Sandu (University of Helsinki): 
      The Principle of Compositionality in Formal Semantics

15.30 Alessandro Lenci (University of Pisa): 
      Logico-Philosophical Categories and the Analysis of Predication 
      in Formal Linguistics

16.00 Closing of the Symposium