Titlebook: Rigorous Software Development; An Introduction to P José Bacelar Almeida,Maria João Frade,Simão Melo d Textbook 2011 Springer-Verlag London

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First-Order Logic,niverse: the domain of discourse. This is achieved by allowing the propositional symbols to take arguments that range over elements of the domain of discourse. These are now called predicate symbols and are interpreted as relations on the domain. Elements of the domain of discourse are denoted by te

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Generating Verification Conditions,e thus concerned with the backwards application of rules of the logic, which will eventually produce a derivation, i.e. a tree in which all leaves correspond to instances of axioms, and all side conditions hold..The goal of this chapter is to show that there exists a strategy for conducting the proo

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Safety Properties,ve been considering that evaluation of an expression could never go wrong, and neither could the execution of a command..This is clearly unsatisfying since in real-world languages runtime errors do occur, and one of the main uses of verification methods is precisely to ensure the safety of programs,

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Procedures and Contracts,ogic that is adequate for reasoning about programs with procedures, and moreover it is adequate for motivating the principles that are used in practice by program verification tools and standard annotation languages, as illustrated in Chaps. 9 and 10. The material studied in the present chapter cove

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José Bacelar Almeida,Maria João Frade,Jorge Sousa Pinto,Simão Melo de Sousa

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José Bacelar Almeida,Maria João Frade,Jorge Sousa Pinto,Simão Melo de Sousa