In various areas of computer science, such as logic, computation, program development and verification, artificial intelligence, knowledge representation, and automated reasoning, there is an obvious need for using specialized formalisms and inference systems for selected tasks. To be usable in practice, these specialized systems must be combined with each other and integrated into general purpose systems. In many research areas, this has led to the development of techniques and methods for the combination and integration of dedicated formal systems, as well as their modularization and analysis.

FroCoS traditionally focuses on this type of research questions and activities and aims at promoting progress in the field.

Typical topics of interest:

• combinations of logics (such as higher-order, first-order, temporal, modal, description or other non-classical logics)
• combination and integration methods in SAT and SMT solving
• combination of decision procedures, satisfiability procedures, constraint solving techniques, or logical frameworks
• combinations and modularity in ontologies
• integration of equational and other theories into deductive systems
• hybrid methods for deduction, resolution and constraint propagation
• hybrid systems in knowledge representation and natural language semantics
• combined logics for distributed and multi-agent systems
• logical aspects of combining and modularizing programs and specifications
• integration of data structures into constraint logic programming and deduction
• combinations and modularity in term rewriting
• applications of methods and techniques to the verification and analysis of information systems

Next edition: FroCoS 2025, September 29–October 3, 2025, Reykjavik, Iceland