Table of Contents

New Interpretations of Quantum Mechanics and the Theory of Knowledge.- Experiment, Entanglement and the Foundations of Quantum Mechanics.- Constructivism and Operationalism in the Foundations of Quantum Mechanics.- Computability in Quantum Mechanics.- Levels of Physical Theories.- A Constructivist Manifesto for the Physical Sciences — Constructive Re-Interpretation of Physical Undecidability.- How Far Can We Formalize Language Games?.- What is a Random String?.- Strong Determinism vs. Computability.- Capturing Relativized Complexity Classes with Lindström Quantifiers.- Why Constructive Mathematics?.- Hypothetical Extensions of Constructive Mathematics.- Constructions as the Subject Matter of Mathematics.- Verificationism Then and Now.- Logic and Mathematics.- A Connection between Leibniz’ Infinitely Small Quantities and the Analytical Hierarchy.- Extensional Equality in the Classical Theory of Types.- Hans Hahn and the Foundational Debate.- Crisis and Return of Intuition in Hans Hahn’s Philosophy of Mathematics.- How Can or Should the Recent Developments in Mathematics Influence the Philosophy of Mathematics?.- On the Vienna Circle in Exile: An Eyewitness Report.- Philipp Frank and the German Physical Society.- Reviews.- Vienna-Berlin-Prague: Centenaries Carnap, Reichenbach, Zilsel.- Activities of the Institute Vienna Circle.- Survey 1995.- Preview 1996.- Index of Names.