It intends to be a generic tool for proof and simulation activity on various classes of transitions systems. Her method finds bisimulations automatically. Concepts from NSA and geometry theorem proving have been combined and applied to the mechanization of Propositions from Newton's Principia for his PhD thesis . This includes the famous Proposition Kepleriana . The framework has also been used to mechanize real analysis using nonstandard techniques.
Some further information is available here .
This project extends the work of L tzbeyer and Sandner. Larry Paulson has found a concise formalization and proof of the Mutilated Chess Board problem, using an inductive definition. Ole Steen Rasmussen has proved the Church-Rosser Theorem, porting G rard Huet's Coq proof. Curiously, a formal version of Barendregt's Variable Convention is needed. Raw and real calculi, related via alpha-collapse, are studied and their confluence properties are proved equivalent as are their equational theories.