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DOI: 10.4230/LIPIcs.FSCD.2016.12

Synthesis of Functional Programs with Help of First-Order Intuitionistic Logic

Authors: Marcin Benke, Aleksy Schubert, and Daria Walukiewicz-Chrzaszcz

Published in: LIPIcs, Volume 52, 1st International Conference on Formal Structures for Computation and Deduction (FSCD 2016)

Abstract

Curry-Howard isomorphism makes it possible to obtain functional programs from proofs in logic. We analyse the problem of program synthesis for ML programs with algebraic types and relate it to the proof search problems in appropriate logics. The problem of synthesis for closed programs is easily equivalent to the proof construction in intuitionistic propositional logic and thus fits in the class of PSPACE-complete problems. We focus further attention on the synthesis problem relative to a given external library of functions. It turns out that the problem is undecidable for unbounded instantiation in ML. However its restriction to instantiations with atomic types only results in a case equivalent to proof search in a restricted fragment of intuitionistic first-order logic, being the core of Sigma_1 level of the logic in the Mints hierarchy. This results in EXPSPACE-completeness for this special case of the ML program synthesis problem.

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Marcin Benke, Aleksy Schubert, and Daria Walukiewicz-Chrzaszcz. Synthesis of Functional Programs with Help of First-Order Intuitionistic Logic. In 1st International Conference on Formal Structures for Computation and Deduction (FSCD 2016). Leibniz International Proceedings in Informatics (LIPIcs), Volume 52, pp. 12:1-12:16, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2016)

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@InProceedings{benke_et_al:LIPIcs.FSCD.2016.12,
  author =	{Benke, Marcin and Schubert, Aleksy and Walukiewicz-Chrzaszcz, Daria},
  title =	{{Synthesis of Functional Programs with Help of First-Order Intuitionistic Logic}},
  booktitle =	{1st International Conference on Formal Structures for Computation and Deduction (FSCD 2016)},
  pages =	{12:1--12:16},
  series =	{Leibniz International Proceedings in Informatics (LIPIcs)},
  ISBN =	{978-3-95977-010-1},
  ISSN =	{1868-8969},
  year =	{2016},
  volume =	{52},
  editor =	{Kesner, Delia and Pientka, Brigitte},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops.dagstuhl.de/entities/document/10.4230/LIPIcs.FSCD.2016.12},
  URN =		{urn:nbn:de:0030-drops-59765},
  doi =		{10.4230/LIPIcs.FSCD.2016.12},
  annote =	{Keywords: ML, program synthesis}
}

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DOI: 10.4230/LIPIcs.TYPES.2014.251

Restricted Positive Quantification Is Not Elementary

Authors: Aleksy Schubert, Pawel Urzyczyn, and Daria Walukiewicz-Chrzaszcz

Published in: LIPIcs, Volume 39, 20th International Conference on Types for Proofs and Programs (TYPES 2014)

Abstract

We show that a restricted variant of constructive predicate logic with positive (covariant) quantification is of super-elementary complexity. The restriction is to limit the number of eigenvariables used in quantifier introductions rules to a reasonably usable level. This construction suggests that the known non-elementary decision algorithms for positive logic may actually be best possible.

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Aleksy Schubert, Pawel Urzyczyn, and Daria Walukiewicz-Chrzaszcz. Restricted Positive Quantification Is Not Elementary. In 20th International Conference on Types for Proofs and Programs (TYPES 2014). Leibniz International Proceedings in Informatics (LIPIcs), Volume 39, pp. 251-273, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2015)

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@InProceedings{schubert_et_al:LIPIcs.TYPES.2014.251,
  author =	{Schubert, Aleksy and Urzyczyn, Pawel and Walukiewicz-Chrzaszcz, Daria},
  title =	{{Restricted Positive Quantification Is Not Elementary}},
  booktitle =	{20th International Conference on Types for Proofs and Programs (TYPES 2014)},
  pages =	{251--273},
  series =	{Leibniz International Proceedings in Informatics (LIPIcs)},
  ISBN =	{978-3-939897-88-0},
  ISSN =	{1868-8969},
  year =	{2015},
  volume =	{39},
  editor =	{Herbelin, Hugo and Letouzey, Pierre and Sozeau, Matthieu},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops.dagstuhl.de/entities/document/10.4230/LIPIcs.TYPES.2014.251},
  URN =		{urn:nbn:de:0030-drops-55002},
  doi =		{10.4230/LIPIcs.TYPES.2014.251},
  annote =	{Keywords: constructive logic, complexity, automata theory}
}

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Documents authored by Walukiewicz-Chrzaszcz, Daria

Synthesis of Functional Programs with Help of First-Order Intuitionistic Logic

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Restricted Positive Quantification Is Not Elementary

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