Chemical Case Studies in KeYmaera X

Safety-critical chemical processes are the backbone of multi-billion-dollar industries, thus society deserves the strongest possible guarantees that they are safe. To that end, models of chemical processes are well-studied in the formal methods literature, including hybrid systems models which combine discrete and continuous dynamics. This paper is the first to use the KeYmaera X theorem-prover to verify chemical models with differential dynamic logic. Our case studies are novel in combining the following: we provide strong general-case correctness theorems, use particularly rich hybrid dynamics, and have particularly rigorous proofs. This novel combination is made possible by KeYmaera X. Simultaneously, we tell a general story about KeYmaera X: recent advances in automated reasoning about safety and liveness for differential equations have enabled elegant proofs about reaction dynamics.

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