Microcode Verification – Another Piece of the Microprocessor Verification Puzzle -- Are We There Yet? 20 Years of Industrial Theorem Proving with SPARK -- Towards a Formally Verified Proof Assistant -- Implicational Rewriting Tactics in HOL -- A Heuristic Prover for Real Inequalities -- A Formal Library for Elliptic Curves in the Coq Proof Assistant -- Truly Modular (Co) data types for Isabelle/HOL -- Cardinals in Isabelle/HOL -- Verified Abstract Interpretation Techniques for Disassembling Low-level Self-modifying Code -- Showing Invariance Compositionally for a Process Algebra for Network Protocols -- A Computer-Algebra-Based Formal Proof of the Irrationality of ζ(3) -- From Operational Models to Information Theory; Side Channels in pGCL with Isabelle -- A Coq Formalization of Finitely Presented Modules -- Formalized, Effective Domain Theory in Coq -- Completeness and Decidability Results for CTL in Coq -- Hypermap Specification and Certified Linked Implementation Using Orbits -- A Verified Generate-Test-Aggregate Coq Library for Parallel Programs Extraction -- Experience Implementing a Performant Category-Theory Library in Coq -- A New and Formalized Proof of Abstract Completion -- HOL with Definitions: Semantics, Soundness and a Verified Implementation -- Verified Efficient Implementation of Gabow’s Strongly Connected Component Algorithm -- Recursive Functions on Lazy Lists via Domains and Topologies -- Formal Verification of Optical Quantum Flip Gate -- Compositional Computational Reflection -- An Isabelle Proof Method Language -- Proof Pearl: Proving a Simple Von Neumann Machine Turing Complete -- The Reflective Milawa Theorem Prover Is Sound (Down to the Machine Code That Runs It) -- Balancing Lists: A Proof Pearl -- Unified Decision Procedures for Regular Expression Equivalence -- Collaborative Interactive Theorem Proving with Clide -- On the Formalization of Z-Transform in HOL -- Universe Polymorphism in Coq -- Asynchronous User Interaction and Tool Integration in Isabelle/PIDE -- HOL Constant Definition Done Right -- Rough Diamond: An Extension of Equivalence-Based Rewriting -- Formal C Semantics: Comp Cert and the C Standard -- Mechanical Certification of Loop Pipelining Transformations: A Preview.