{"product_id":"proof-in-vdm-a-practitioners-guide-von-juan-c-bicarregui-john-fitzgerald-peter-a-lindsay-richard-moore-brian-ritchie","title":"Proof in VDM: A Practitioner’s Guide","description":"Formal specifications were first used in the description of program ming languages because of the central role that languages and their compilers play in causing a machine to perform the computations required by a programmer. In a relatively short time, specification notations have found their place in industry and are used for the description of a wide variety of software and hardware systems. A formal method - like VDM - must offer a mathematically-based specification language. On this language rests the other key element of the formal method: the ability to reason about a specification. Proofs can be empioyed in reasoning about the potential behaviour of a system and in the process of showing that the design satisfies the specification. The existence of a formal specification is a prerequisite for the use of proofs; but this prerequisite is not in itself sufficient. Both proofs and programs are large formal texts. Would-be proofs may therefore contain errors in the same way as code. During the difficult but inevitable process of revising specifications and devel opments, ensuring consistency is a major challenge. It is therefore evident that another requirement - for the successful use of proof techniques in the development of systems from formal descriptions - is the availability of software tools which support the manipu lation of large bodies of formulae and help the user in the design of the proofs themselves.\u003cdiv class=\"aw-variant-hidden-subtitle-div\" id=\"aw-variant-subtitle-9783540198130\"\u003e\u003ch3\u003e\u003c\/h3\u003e\u003c\/div\u003e","brand":"Libri","offers":[{"title":"Softcover - 9783540198130","offer_id":39421915988061,"sku":"9783540198130","price":53.49,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/0622\/files\/acd2f9de-e3f8-4770-a095-00f4df04ef0e.jpg?v=1774758907","url":"https:\/\/shop.autorenwelt.de\/en\/products\/proof-in-vdm-a-practitioners-guide-von-juan-c-bicarregui-john-fitzgerald-peter-a-lindsay-richard-moore-brian-ritchie","provider":"Autorenwelt Shop","version":"1.0","type":"link"}