Invited Presentations -- The Algorithmization of Physics: Math Between Science and Engineering -- Finite Algebras and AI: From Matrix Semantics to Stochastic Local Search -- Proof Search in Minimal Logic -- Planning and Patching Proof -- Papers -- A Paraconsistent Higher Order Logic -- Abstraction Within Partial Deduction for Linear Logic -- A Decision Procedure for Equality Logic with Uninterpreted Functions -- Generic Hermitian Quantifier Elimination -- Extending Finite Model Searching with Congruence Closure Computation -- On the Combination of Congruence Closure and Completion -- Combination of Nonlinear Terms in Interval Constraint Satisfaction Techniques -- Proving and Constraint Solving in Computational Origami -- An Evolutionary Local Search Method for Incremental Satisfiability -- Solving Equations Involving Sequence Variables and Sequence Functions -- Verified Computer Algebra in Acl2 -- Polynomial Interpretations with Negative Coefficients -- New Developments in Symmetry Breaking in Search Using Computational Group Theory -- Recognition of Whitehead-Minimal Elements in Free Groups of Large Ranks -- Four Approaches to Automated Reasoning with Differential Algebraic Structures -- Algorithm-Supported Mathematical Theory Exploration: A Personal View and Strategy -- An Expert System on Detection, Evaluation and Treatment of Hypertension -- Short Presentations -- Two Revision Methods Based on Constraints: Application to a Flooding Problem -- Abstraction-Driven Verification of Array Programs -- Singularities in Qualitative Reasoning -- From a Computer Algebra Library to a System with an Equational Prover.