Manfred Kerber, Michael Kohlhase

• Part I: Regular Contributions; Definite Integration of Parametric Rational Functions: Applying a DITLU; How to Find Symmetries Hidden in Combinatorial Problems; Communication Protocols for Mathematical Services based on KQML and OMRS; Interfacing Computer Algebra and Deduction Systems via the Logic Broker Architecture; Development of the Theory of Continuous Lattices in MIZAR; ?-ANTS – An Open Approach at Combining Interactive and Automated Theorem Proving; The TH?OREM? Project: A Progress Report; How to Formally and Efficiently Prove Prime(2999); On the EA-Style Integrated Processing of Self-Contained Mathematical Texts; Towards Learning New Methods in Proof Planning; Using Meta-variables for Natural Deduction in Theorema; Exploring Properties of Residue Classes; Defining Power Series and Polynomials in Mizar; Logic and Dependent Types in the Aldor Computer Algebra System; Part II: Invited Presentations; Communicating Mathematics on the Web; Teaching Mathematics Accross the Internet; Part III: System Description; Singular — A Computer Algebra System for Polynomial Computations; Part IV: Posters; Integration of Automated Reasoners: a Progress Report; Algorithmic Theories and Context; The GiNaC Framework for Symbolic Computation within the C++ Programming Language; A Framework for Propositional Model Elimination Algorithms; Resource Guided Concurrent Deduction; Automated ‘Plugging and Chugging’; Integrating SAT Solvers with Domain-specific Reasoners; Solving Integrals at the Method Level; Lightweight Probability Theory for Verification; St Andrews CAAR Group: Poster Abstract; OpenXM — an Open System to Integrate Mathematical Software; Presentation of the Foc Project