Types for Proofs and Programs [electronic resource] : International Workshop, TYPES’99 Lökeberg, Sweden, June 12–16, 1999 Selected Papers / edited by Thierry Coquand, Peter Dybjer, Bengt Nordström, Jan Smith.

Specification and Verification of a Formal System for Structurally Recursive Functions -- A Predicative Strong Normalisation Proof for a ?Calculus with Interleaving Inductive Types -- Polymorphic Intersection Type Assignment for Rewrite Systems with Abstraction and ?-Rule -- Computer-Assisted Mathematics at Work -- Specification of a Smart Card Operating System -- Implementation Techniques for Inductive Types in Plastic -- A Co-inductive Approach to Real Numbers -- Information Retrieval in a Coq Proof Library Using Type Isomorphisms -- Memory Management: An Abstract Formulation of Incremental Tracing -- The Three Gap Theorem (Steinhaus Conjecture) -- Formalising Formulas-as-Types-as-Objects.