This Festschrift volume, published in honor of Nissim Francez on the occasion of his 65th birthday, contains 15 papers, written by friends and colleagues, many of whom congregated at a celebratory symposium held on May 24-25, 2009, in Haifa, Israel. The theme of the symposium was Languages: From Formal to Natural, reflecting the focus of Nissim Francez' research career, which started in program verification and the semantics of programming languages and later concentrated on natural languages and computational linguistics. The papers included in this volume cover the entire spectrum of this field of research.

InhaltsangabeLanguages: From Formal to Natural.- Modular Verification of Recursive Programs.- Semi-formal Evaluation of Conversational Characters.- Scope Dominance with Generalized Quantifiers.- Nonassociative Lambek Calculus with Additives and Context-Free Languages.- On Lazy Commutation.- Aspect Oriented Approach for Capturing and Verifying Distributed Properties.- No i-Sums for Nissim (and Shalom).- The Power of Non-deterministic Reassignment in Infinite-Alphabet Pushdown Automata.- Modular Verification of Strongly Invasive Aspects.- Classes of Service under Perfect Competition and Technological Change.- On the Ontological Nature of Syntactic Categories in Categorial Grammar.- Masking Gateway for Enterprises.- No Syllogisms for the Numerical Syllogistic.- Formal Grammars of Early Language.- Hybrid BDD and All-SAT Method for Model Checking.