Titlebook: Constructing Correct Software; D. John Cooke Textbook 19981st edition Springer-Verlag London 1998 Formal Development.algorithms.design.dev

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concert

Siddhartha Mishra,Christoph Schwabstructions detailed in this chapter requires you to view problems more abstractly but they facilitate application of powerful refinement rules which give shorter, more immediate, derivation sequences. The price which must be paid for using . rules is that the designs produced are constrained; they have a certain structure.

中子

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香料

Springer-Verlag London 1998

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Yao-Yi Chiang,Weiwei Duan,Craig A. Knoblockr programming language, nor is it a collection of standard algorithms for solving common problems. It is about the creation of software designs which are . to meet their requirements, that are . — and correctness cannot be qualified, software is either correct or it isn’t.

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Urban Landscaping in the Arid Zone in the guise of input or output instructions). Performing a calculation is synonymous with evaluating a function. Mathematically, a function is something which generates a . result from each acceptable data value. Regarded as a complete program, it should be possible in principle to read all the re

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Sochinwechi Nwosisi,Dilip Nandwaniy of computable functions tells us that there really is nothing else which . be computed — all computations and data values can be encoded into single integers. But not all data . like a single integer and we want to be able perform calculations which act on (uncoded) data in the form that we common

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Sochinwechi Nwosisi,Dilip Nandwanibe directly translated into an executable program. If the specification is . and . — so that each data item of the specified type there is exactly one corresponding result value that corresponds to each input — this task is achieved by transforming, by manipulating, the post-condition. This is the f

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