Titlebook: Interactive Theorem Proving; 6th International Co Christian Urban,Xingyuan Zhang Conference proceedings 2015 Springer International Publish

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Improved Tool Support for Machine-Code Decompilation in HOL4,el naturally guarantees very high levels of assurance, but it does present challenges when it comes implementing efficient proof tools. This paper presents improvements that have been made to our methodology for soundly . machine-code programs to functions expressed in HOL logic. These advancements

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A Formalized Hierarchy of Probabilistic System Types,xpressiveness. In this work, we formalize the resulting hierarchy of probabilistic system types in Isabelle/HOL by modeling the semantics of the different systems as codatatypes. This approach yields simple and concise proofs, as bisimilarity coincides with equality for codatatypes. On the way, we d

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Learning to Parse on Aligned Corpora (Rough Diamond),erminology and the parsing mechanisms used in the large ITP libraries. This includes the large number of formal symbols, the grammar of the formal languages and the advanced mechanisms instrumenting the proof assistants to correctly understand the formal expressions in the presence of ubiquitous ove

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Refinement to Imperative/HOL,ach to automatically generate verified imperative implementations from abstract specifications in Isabelle/HOL. It is based on the Isabelle Refinement Framework, for which a lot of abstract algorithms are already formalized..Based on Imperative/HOL, which allows to generate verified imperative code,

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,Stream Fusion for Isabelle’s Code Generator,ent the transformation in the code preprocessor. Our initial results show that optimisations during code extraction can boost the performance of the generated code, but the transformation requires further engineering to be usable in practice.

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HOCore in Coq,. We highlight a number of important technical issues that we have uncovered in the original publication. We believe that these issues are not unique to the paper under consideration and require particular care to be avoided.

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