Zoe Chatzidakis Department of Mathematics University of Paris 7 Peter Koepke Mathematical Institute University of Bonn Wolfram Pohlers Institute for Mathematical Logic and Foundational Research University of Munster

• Preface, Participants Photograph, Generic absoluteness for ?? formulas and the continuum problem, Axioms of generic absoluteness, Generalised dynamic ordinals — universal measures for implicit computational complexity, The Worm principle, “One is a lonely number”: logic and communication, Computable versions of the uniform boundedness theorem, Symmetry of the universal computable function: A study of its automorphisms, homomorphisms and isomorphic embeddings, PCF theory and Woodin cardinals, Embedding finite lattices into the computably enumerable degrees — a status survey, Dimension theory inside a homogeneous model, Reals which compute little, Bisimulation invariance and finite models, Choice principles in constructive and classical set theories, Ash’s theorem for abstract structures, Martin-Lof random and PA-complete sets, Learning and computing in the limit

Zoe Chatzidakis Department of Mathematics University of Paris 7 Peter Koepke Mathematical Institute University of Bonn Wolfram Pohlers Institute for Mathematical Logic and Foundational Research University of Munster

• Preface, Participants Photograph, Generic absoluteness for ?? formulas and the continuum problem, Axioms of generic absoluteness, Generalised dynamic ordinals — universal measures for implicit computational complexity, The Worm principle, “One is a lonely number”: logic and communication, Computable versions of the uniform boundedness theorem, Symmetry of the universal computable function: A study of its automorphisms, homomorphisms and isomorphic embeddings, PCF theory and Woodin cardinals, Embedding finite lattices into the computably enumerable degrees — a status survey, Dimension theory inside a homogeneous model, Reals which compute little, Bisimulation invariance and finite models, Choice principles in constructive and classical set theories, Ash’s theorem for abstract structures, Martin-Lof random and PA-complete sets, Learning and computing in the limit

Zoe Chatzidakis Department of Mathematics University of Paris 7 Peter Koepke Mathematical Institute University of Bonn Wolfram Pohlers Institute for Mathematical Logic and Foundational Research University of Munster

• Preface, Participants Photograph, Generic absoluteness for ?? formulas and the continuum problem, Axioms of generic absoluteness, Generalised dynamic ordinals — universal measures for implicit computational complexity, The Worm principle, “One is a lonely number”: logic and communication, Computable versions of the uniform boundedness theorem, Symmetry of the universal computable function: A study of its automorphisms, homomorphisms and isomorphic embeddings, PCF theory and Woodin cardinals, Embedding finite lattices into the computably enumerable degrees — a status survey, Dimension theory inside a homogeneous model, Reals which compute little, Bisimulation invariance and finite models, Choice principles in constructive and classical set theories, Ash’s theorem for abstract structures, Martin-Lof random and PA-complete sets, Learning and computing in the limit