A Denotational Semantics for Total Correctness of Sequential Exact Real Programs

  • Thomas Anberrée
Part of the Lecture Notes in Computer Science book series (LNCS, volume 4978)


We provide a domain-based denotational semantics for a sequential language for exact real number computation, equipped with a non-deterministic test operator. The semantics is only an approximate one, because the denotation of a program for a real number may not be precise enough to tell which real number the program computes. However, for many first-order common functions \(f:{\mathbb R}^n \rightarrow {\mathbb R}\), there exists a program for f whose denotation is precise enough to show that the program indeed computes the function f. In practice such programs possessing a faithful denotation are not difficult to find.


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Copyright information

© Springer-Verlag Berlin Heidelberg 2008

Authors and Affiliations

  • Thomas Anberrée
    • 1
  1. 1.Division of Computer ScienceUniversity of Nottingham in NíngbōP.R. China

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