1 Search Results for "Schwinghammer, Jan"


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Step-Indexed Relational Reasoning for Countable Nondeterminism

Authors: Jan Schwinghammer and Lars Birkedal

Published in: LIPIcs, Volume 12, Computer Science Logic (CSL'11) - 25th International Workshop/20th Annual Conference of the EACSL (2011)


Abstract
Programming languages with countable nondeterministic choice are computationally interesting since countable nondeterminism arises when modeling fairness for concurrent systems. Because countable choice introduces non-continuous behaviour, it is well-known that developing semantic models for programming languages with countable nondeterminism is challenging. We present a step-indexed logical relations model of a higher-order functional programming language with countable nondeterminism and demonstrate how it can be used to reason about contextually defined may- and must-equivalence. In earlier step-indexed models, the indices have been drawn from omega. Here the step-indexed relations for must-equivalence are indexed over an ordinal greater than omega.

Cite as

Jan Schwinghammer and Lars Birkedal. Step-Indexed Relational Reasoning for Countable Nondeterminism. In Computer Science Logic (CSL'11) - 25th International Workshop/20th Annual Conference of the EACSL. Leibniz International Proceedings in Informatics (LIPIcs), Volume 12, pp. 512-524, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2011)


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@InProceedings{schwinghammer_et_al:LIPIcs.CSL.2011.512,
  author =	{Schwinghammer, Jan and Birkedal, Lars},
  title =	{{Step-Indexed Relational Reasoning for Countable Nondeterminism}},
  booktitle =	{Computer Science Logic (CSL'11) - 25th International Workshop/20th Annual Conference of the EACSL},
  pages =	{512--524},
  series =	{Leibniz International Proceedings in Informatics (LIPIcs)},
  ISBN =	{978-3-939897-32-3},
  ISSN =	{1868-8969},
  year =	{2011},
  volume =	{12},
  editor =	{Bezem, Marc},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops-dev.dagstuhl.de/entities/document/10.4230/LIPIcs.CSL.2011.512},
  URN =		{urn:nbn:de:0030-drops-32535},
  doi =		{10.4230/LIPIcs.CSL.2011.512},
  annote =	{Keywords: countable choice, lambda calculus, program equivalence}
}
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