§16§Thisvolumerepresents the proceedings ofthe Fourth International Conference onTypedLambdaCalculiandApplications,TLCA 99,heldinL Aquila,on7-9 April1999. It contains25contributions. Fiftywere submitted, their overallqualitywas high, and selection was di?cult. The Programme Committee is very grateful toeveryonewhosubmittedapaper. Italsocontainstwopapersintroducingthe demos of tlcasoftware ,i. e. industrialproductsmakinguseoftypedlamb- calculi. Thetutorialson DenotationalsemanticsbyThomasEhrhardandJohnLongley,and IntersectiontypesbyMarioCoppoandMariangiolaDezaniarenotincluded inthisvolume. Theeditor wishestothankthemembersoftheProgrammeCommitteeand theOrganizingCommitteelisted, fortheir hard work andsupport, witha s- cial mention for Benedetto Intrigila. He also thanks Corrado Boh m for kindly acceptingthe taskofdeliveringabanquetspeech. Theeditor alsoexpresses hisgratitude to allthereferees listed on the next page,as wellas tothose whowishnotto belisted fortheiressential assistance an §16§dtimegenerouslygiven. Marseille,January1999 Jean-YvesGirard ProgrammeCommittee S. Abramsky(Edinburgh) T. Coquand(Got eborg) J. -Y. Girard(Marseille)(Chair) R. Hindley(Swansea) J. -L. Krivine(Paris) J. Reynolds(Pittsburgh) S. Ronchi(Torino) A. Scedrov(Philadelphia) T. Streicher(Darmstadt) M. Takahashi(T oky o) P. Urzyczyn(Warszawa) OrganizingCommittee F. Corradini,A. Formisano,B. Intrigila,(Chair),M. -C. Meo, M. Nesi,A. Pierantonio,I. Salvo,S. Sorgi (Dip. Matematica, L AquilaandDip. Informatica,LaSapienza, Roma) Referees Y. Akama T. Altenkirch F. Barbanera H. Barendregt O. Bastonero S. Berardi A. Berarducci C. Berline V. Bono M. Bugliesi F. Cardone G. Castagna I. Cervesato G. Chen R. Cockett A. Compagnoni M. Coppo T. Crolard P. -L. Curien V. Danos R. Davies P. DeGroote U. DeLiguoro M. Dezani R. Dickho? H. Geuvers N. Ghani P. Giannini S. Guerrini B. Harper R. Hasegawa H. Herbelin M. Hofmann K. Honda R. Jagadeesan T. Jim Y. Kameyama M. Kanovich R. Kashima Y. Kinoshita T. Kurata Y. La §16§font J. Laird F. Lamarche P. B. Levy C. McBride M. Marz R. Matthes P. -A. Mellies G. Mitschke H. Nickau S. Nishizaki M. Parigot C. Paulin F. Pfenning B. §04§Invited Demonstration.- The Coordination Language Facility and Applications.- AnnoDomini in Practice: A Type-Theoretic Approach to the Year 2000 Problem.- Contributions.- Modules in Non-commutative Logic.- Elementary Complexity and Geometry of Interaction.- Quantitative Semantics Revisited.- Total Functionals and Well-Founded Strategies.- Counting a Type's Principal Inhabitants.- Useless-Code Detection and Elimination for PCF with Algebraic Data Types.- Every Unsolvable ? Term has a Decoration.- Game Semantics for Untyped ???-Calculus.- A Finite Axiomatization of Inductive-Recursive Definitions.- Lambda Definability with Sums via Grothendieck Logical Relations.- Explicitly Typed ??-Calculus for Polymorphism and Call-by-Value.- Soundness of the Logical Framework for Its Typed Operational Semantic.- Logical Predicates for Intuitionistic Linear Type Theories.- Polarized Proof-Nets: Proof-Nets for LC.- Call-by-Push-Value: A Subsuming Paradigm.- A Study of Abramsky's Linear Chemical Ab §04§stract Machine.- Resource Interpretations, Bunched Implications and the ??-Calculus (Preliminary Version).- A Curry-Howard Isomorphism for Compilation and Program Execution.- Natural Deduction for Intuitionistic Non-commutative Linear Logic.- A Logic for Abstract Data Types as Existential Types.- Characterising Explicit Substitutions which Preserve Termination.- Explicit Environments.- Consequences of Jacopini's Theorem: Consistent Equalities and Equations.- Strong Normalisation of Cut-Elimination in Classical Logic.- Pure Type Systems with Subtyping.
