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DOI: 10.4230/LIPIcs.CSL.2026.48

Interpreting Lambda Calculus in Domain-Valued Random Variables

Authors: Robert Furber, Radu Mardare, Prakash Panangaden, and Dana Scott

Published in: LIPIcs, Volume 363, 34th EACSL Annual Conference on Computer Science Logic (CSL 2026)

Abstract

We develop Boolean-valued domain theory and show how the lambda-calculus can be interpreted using domain-valued random variables. We focus on the reflexive domain construction rather than the language and its semantics. We develop the Boolean-valued set theory needed from scratch and then develop Boolean-valued domain theory on top of that. The notions of equality and partial order have to be given Boolean-valued interpretations; when we say that an equation is valid in the model we mean that its interpretation is the top element of the Boolean algebra.

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Robert Furber, Radu Mardare, Prakash Panangaden, and Dana Scott. Interpreting Lambda Calculus in Domain-Valued Random Variables. In 34th EACSL Annual Conference on Computer Science Logic (CSL 2026). Leibniz International Proceedings in Informatics (LIPIcs), Volume 363, pp. 48:1-48:20, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2026)

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@InProceedings{furber_et_al:LIPIcs.CSL.2026.48,
  author =	{Furber, Robert and Mardare, Radu and Panangaden, Prakash and Scott, Dana},
  title =	{{Interpreting Lambda Calculus in Domain-Valued Random Variables}},
  booktitle =	{34th EACSL Annual Conference on Computer Science Logic (CSL 2026)},
  pages =	{48:1--48:20},
  series =	{Leibniz International Proceedings in Informatics (LIPIcs)},
  ISBN =	{978-3-95977-411-6},
  ISSN =	{1868-8969},
  year =	{2026},
  volume =	{363},
  editor =	{Guerrini, Stefano and K\"{o}nig, Barbara},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops.dagstuhl.de/entities/document/10.4230/LIPIcs.CSL.2026.48},
  URN =		{urn:nbn:de:0030-drops-254734},
  doi =		{10.4230/LIPIcs.CSL.2026.48},
  annote =	{Keywords: lambda calculus, domain theory, random variables}
}

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Interpreting Lambda Calculus in Domain-Valued Random Variables

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