- Sergei N. Artëmov (City University of New York): On Brouwer-Heyting-Kolmogorov provability semantics
- Kosta Došen (Mathematical Institute, SANU): Two Ways of General Proof Theory
- Roy Dyckhoff (University of St Andrews): Generalised elimination rules
- Lars Hallnäs (University of Borås): On the proof theoretic foundations of set theory
- Wilfrid Hodges (Dartmoor): The choice of semantics as a methodological question
- Reinhard Kahle (Universidade Nova de Lisboa): The mode of presentation
- Dag Prawitz (Stockholm University): Remarks on relations between Gentzen and Heyting inspired PTS
- Giovanni Sambin (Università di Padova): Unification of logics by reflection
- Göran Sundholm (Universiteit Leiden): BHK and Brouwer's Theory of the Creative Subject
- William W. Tait (University of Chicago): Compositional semantics for predicate logic: Eliminating bound variables from formulas and deductions
- Gabriele Usberti (Università degli Studi di Siena): Intuitionism, the Paradox of Knowability and Empirical Negation
- Jan von Plato (University of Helsinki): Explicit composition and its application in normalization proofs
- Heinrich Wansing (Ruhr University Bochum): A two-sorted typed lambda-calculus
- Walter Dean (University of Warwick): Kreisel's second clause and the Theory of Constructions (with H. Kurokawa)
- Hidenori Kurokawa (City University of New York)
- Yoshihiro Maruyama (University of Oxford): On Paradoxes in Proof-Theoretic Semantics