Titlebook: Refinement in Z and Object-Z; Foundations and Adva John Derrick,Eerke Boiten Book 20011st edition Springer-Verlag London 2001 Formal Method

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ications provides an invaluable overview of recent research for academic and industrial researchers, lecturers teaching formal specification and development, industrial practitioners using formal methods in their work, and postgraduate and advanced undergraduate students.978-1-4471-0257-1

Spina-Bifida

放弃

leniency

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空气

Promotionm- posing specifications in order to build multiple indexed instances of a single component. To do so the component is described as a local state together with operations acting on that state, a global state is then defined which consists of multiple instances of this local state together with globa

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Refinement, Observation and Modificationcification style. Of course, this assumption is by no means realistic. Much of the power and attraction of Z derives from Z being little more than logic and set theory with convenient options for naming and structuring — which can be (and is) used for anything for which logic and set theory can be u

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IO Refinementlified case of operations having no inputs or outputs. The justification for this was found in Section 4.4, where a fairly tedious derivation led to the conclusion that their presence does not fundamentally complicate matters concerning refinement. Summarising the development there: input and output

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