Download PDF by Eric C.R. Hehner: A Practical Theory of Programming (Monographs in Computer

By Eric C.R. Hehner

ISBN-10: 0387941061

ISBN-13: 9780387941066

There are a number of theories of programming. the 1st usable concept, referred to as "Hoare's Logic", remains to be the most well known. In it, a specification is a couple of predicates: a precondition and postcondition (these and all technical phrases might be outlined in due course). one other renowned and heavily similar conception via Dijkstra makes use of the weakest precondition predicate transformer, that is a functionality from courses and postconditions to preconditions. lones's Vienna improvement approach has been used to virtue in a few industries; in it, a specification is a couple of predicates (as in Hoare's Logic), however the moment predicate is a relation. Temporal good judgment is yet one more formalism that introduces a few specified operators and quantifiers to explain a few features of computation. the speculation during this e-book is less complicated than any of these simply pointed out. In it, a specification is simply a boolean expression. Refinement is simply traditional implication. This idea is usually extra normal than these simply pointed out, employing to either terminating and nonterminating computation, to either sequential and parallel computation, to either stand-alone and interactive computation. And it contains time bounds, either for set of rules class and for tightly limited real-time applications.

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A Practical Theory of Programming (Monographs in Computer Science) by Eric C.R. Hehner

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