ANNALS OF PURE AND APPLIED LOGIC
Volume 1 1 4 , Numbers 1-3, 1 5 April 2002
Special Issue
Commemorative Symposium Dedicated to Anne S. Troelstra on the occasion of his 60th birthday
Guest-editors
Jaap van Oosten Harold Schellinx
Contents
Preface 1
U. Berger, W. Buchholz and H. Schwichtenberg
Refined program extraction from classical proofs 3 J. Oilier
Logical problems of functional interpretations 27 J.M.E. Hyland
Proof theory in the abstract 43 G. Jager and T. Studer
Extending the system To of explicit mathematics: the limit and Mahio
axioms 79 U. Kohlenbach
On uniform weak Konig's lemma 103 D. Leivant
Intrinsic reasoning about functional programs I: first order theories 1 1 7 /. Moerdijk and E. Palmgren
Type theories, toposes and constructive set theory: predicative aspects
of AST 155 J.R. Moschovakis
Analyzing realizability by Troelstra's methods 203 A. Visser
Substitutions of ^-sentences: explorations between intuitionistic
prepositional logic and intuitionistic arithmetic 227 Author Index 273