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Bøger af Henk Barendregt

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  • af Henk Barendregt
    227,95 kr.

    This book is an extended version of the author's 1971 PhD thesis, containing a facsimile of the original and several extensions: motivation, hindsight and the making of. It is concerned with consistency of equating unsolvable terms and adding the omega-rule as strengthening of the principle of extensionality. The republication is put in context of the transition of lambda-calculus from an academic theory to a major foundation for fruitful aspects of logic, having an impact on mathematics and computer science and technology with a societal impact by securing correctness of complex systems.

  • af Henk Barendregt & Giulio Manzonetto
    397,95 - 507,95 kr.

  • af Tobias Nipkow & Henk Barendregt
    580,95 kr.

  • af Henk Barendregt
    367,95 kr.

    The Lambda Calculus, treated in this book mainly in its untyped version, consists of a collection of expressions, called lambda terms, together with ways how to rewrite and identify these. In the parts conversion, reduction, theories, and models the view is respectively 'algebraic', computational, with more ('coinductive') identifications, and finally set-theoretic.The lambda terms are built up from variables, using application and abstraction. Applying a term F to M has as intention that F is a function, M its argument, and FM the result of the application. This is only the intention: to actually obtain the result one has to rewrite the expression FM according tothe reduction rules. Abstraction provides a way to create functions according to the effect when applying them.The power of the theory comes from the fact that computations, both terminating and infinite, can be expressed by lambda terms at a 'comfortable' level of abstraction.

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