Explore modularity in the Prototype Verification System (PVS) through this insightful 35-minute lecture by Sam Owre at the Hausdorff Center for Mathematics. Gain a deeper understanding of how modularity enhances the functionality and efficiency of PVS, a powerful tool for formal verification and theorem proving. Discover key concepts, best practices, and practical applications of modular design within the PVS framework, enabling more effective and scalable formal methods in software and hardware verification.