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DOI: 10.4230/LIPIcs.CSL.2012.152

On the equational consistency of order-theoretic models of the lambda-calculus

Authors: Alberto Carraro and Antonino Salibra

Published in: LIPIcs, Volume 16, Computer Science Logic (CSL'12) - 26th International Workshop/21st Annual Conference of the EACSL (2012)

Abstract

Answering a question by Honsell and Plotkin, we show that there are two equations between lambda terms, the so-called subtractive equations, consistent with lambda calculus but not satisfied in any partially ordered model with bottom element. We also relate the subtractive equations to the open problem of the order-incompleteness of lambda calculus.

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Alberto Carraro and Antonino Salibra. On the equational consistency of order-theoretic models of the lambda-calculus. In Computer Science Logic (CSL'12) - 26th International Workshop/21st Annual Conference of the EACSL. Leibniz International Proceedings in Informatics (LIPIcs), Volume 16, pp. 152-166, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2012)

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@InProceedings{carraro_et_al:LIPIcs.CSL.2012.152,
  author =	{Carraro, Alberto and Salibra, Antonino},
  title =	{{On the equational consistency of order-theoretic models of the lambda-calculus}},
  booktitle =	{Computer Science Logic (CSL'12) - 26th International Workshop/21st Annual Conference of the EACSL},
  pages =	{152--166},
  series =	{Leibniz International Proceedings in Informatics (LIPIcs)},
  ISBN =	{978-3-939897-42-2},
  ISSN =	{1868-8969},
  year =	{2012},
  volume =	{16},
  editor =	{C\'{e}gielski, Patrick and Durand, Arnaud},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops.dagstuhl.de/entities/document/10.4230/LIPIcs.CSL.2012.152},
  URN =		{urn:nbn:de:0030-drops-36703},
  doi =		{10.4230/LIPIcs.CSL.2012.152},
  annote =	{Keywords: Lambda calculus, order-incompleteness, partially ordered models}
}

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On the equational consistency of order-theoretic models of the lambda-calculus

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