Robbert Krebbers - Böcker

This Festschrift, dedicated to Herman Geuvers on the occasion of his 60th birthday, contains papers written by many of his closest collaborators.Herman Geuvers is a full professor at Radboud University Nijmegen and holds a part-time professorship at Eindhoven University of Technology. He received his PhD from Radboud University in 1993 and he was promoted to full professor in Computer Assisted Reasoning in 2006. Prof. Geuvers is an internationally renowned researcher in the field of proof assistants, logic in computer science, lambda calculus, and type theory. He has been a steering committee chair of the TYPES and FSCD conferences, chair of related EU Cost Action projects, and program chair or editor of related conferences and special issues in the area of computer science logic. He is a successful, generous and inspiring advisor and educator. He has been director of education and director of research of the Computer Science Institute at Radboud University Nijmegen, and he is currently chair of the examination board of computer science and chair of the board of the Institute for Programming Research and Algorithmics, a Dutch national inter-university research school.The contributions in this volume reflect Prof. Geuvers’ main research interests.

The open access book set LNCS 16501 + LNCS 16502 constitutes the proceedings of the 35th European Symposium on Programming, ESOP 2026, which was held as part of the International Joint Conferences on Theory and Practice of Software, ETAPS 2026, in Turin, Italy, during April 11-16, 2026.The 31 full papers included in the proceedings, together with one invited talk, were carefully reviewed and selected from 94 submissions. They deal with fundamental issues in the specification, design, analysis and implementation of programming languages and systems, such as programming paradigms and styles; methods and tools to write and specify programs and languages; methods and tools for reasoning about programs; programming systems design and implementation.