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Documents authored by Blanchette, Jasmin Christian

Document
DOI: 10.4230/DagRep.7.9.26
Deduction Beyond First-Order Logic (Dagstuhl Seminar 17371)

Authors: Jasmin Christian Blanchette, Carsten Fuhs, Viorica Sofronie-Stokkermans, and Cesare Tinelli

Published in: Dagstuhl Reports, Volume 7, Issue 9 (2018)

Abstract
This report documents the program and the outcomes of Dagstuhl Seminar 17371 "Deduction Beyond First-Order Logic." Much research in the past two decades was dedicated to automating first-order logic with equality. However, applications often need reasoning beyond this logic. This includes genuinely higher-order reasoning, reasoning in theories that are not finitely axiomatisable in first-order logic (such as those including transitive closure operators or standard arithmetic on integers or reals), or reasoning by mathematical induction. Other practical problems need a mixture of first-order proof search and some more advanced reasoning (for instance, about higher-order formulas), or simply higher-level reasoning steps. The aim of the seminar was to bring together first-order automated reasoning experts and researchers working on deduction methods and tools that go beyond first-order logic. The seminar was dedicated to the exchange of ideas to facilitate the transition from first-order to more expressive settings.
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Jasmin Christian Blanchette, Carsten Fuhs, Viorica Sofronie-Stokkermans, and Cesare Tinelli. Deduction Beyond First-Order Logic (Dagstuhl Seminar 17371). In Dagstuhl Reports, Volume 7, Issue 9, pp. 26-46, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2018)

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@Article{blanchette_et_al:DagRep.7.9.26,
  author =	{Blanchette, Jasmin Christian and Fuhs, Carsten and Sofronie-Stokkermans, Viorica and Tinelli, Cesare},
  title =	{{Deduction Beyond First-Order Logic (Dagstuhl Seminar 17371)}},
  pages =	{26--46},
  journal =	{Dagstuhl Reports},
  ISSN =	{2192-5283},
  year =	{2018},
  volume =	{7},
  number =	{9},
  editor =	{Blanchette, Jasmin Christian and Fuhs, Carsten and Sofronie-Stokkermans, Viorica and Tinelli, Cesare},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops.dagstuhl.de/entities/document/10.4230/DagRep.7.9.26},
  URN =		{urn:nbn:de:0030-drops-85872},
  doi =		{10.4230/DagRep.7.9.26},
  annote =	{Keywords: Automated Deduction, Program Verification, Certification}
}
Document
DOI: 10.4230/LIPIcs.FSCD.2017.11
Nested Multisets, Hereditary Multisets, and Syntactic Ordinals in Isabelle/HOL

Authors: Jasmin Christian Blanchette, Mathias Fleury, and Dmitriy Traytel

Published in: LIPIcs, Volume 84, 2nd International Conference on Formal Structures for Computation and Deduction (FSCD 2017)

Abstract
We present a collection of formalized results about finite nested multisets, developed using the Isabelle/HOL proof assistant. The nested multiset order is a generalization of the multiset order that can be used to prove termination of processes. Hereditary multisets, a variant of nested multisets, offer a convenient representation of ordinals below epsilon-0. In Isabelle/HOL, both nested and hereditary multisets can be comfortably defined as inductive datatypes. Our formal library also provides, somewhat nonstandardly, multisets with negative multiplicities and syntactic ordinals with negative coefficients. We present applications of the library to formalizations of Goodstein's theorem and the decidability of unary PCF (programming computable functions).
Cite as

Jasmin Christian Blanchette, Mathias Fleury, and Dmitriy Traytel. Nested Multisets, Hereditary Multisets, and Syntactic Ordinals in Isabelle/HOL. In 2nd International Conference on Formal Structures for Computation and Deduction (FSCD 2017). Leibniz International Proceedings in Informatics (LIPIcs), Volume 84, pp. 11:1-11:18, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2017)

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@InProceedings{blanchette_et_al:LIPIcs.FSCD.2017.11,
  author =	{Blanchette, Jasmin Christian and Fleury, Mathias and Traytel, Dmitriy},
  title =	{{Nested Multisets, Hereditary Multisets, and Syntactic Ordinals in Isabelle/HOL}},
  booktitle =	{2nd International Conference on Formal Structures for Computation and Deduction (FSCD 2017)},
  pages =	{11:1--11:18},
  series =	{Leibniz International Proceedings in Informatics (LIPIcs)},
  ISBN =	{978-3-95977-047-7},
  ISSN =	{1868-8969},
  year =	{2017},
  volume =	{84},
  editor =	{Miller, Dale},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops.dagstuhl.de/entities/document/10.4230/LIPIcs.FSCD.2017.11},
  URN =		{urn:nbn:de:0030-drops-77155},
  doi =		{10.4230/LIPIcs.FSCD.2017.11},
  annote =	{Keywords: Multisets, ordinals, proof assistants}
}
Document
DOI: 10.4230/DagRep.5.9.18
Information from Deduction: Models and Proofs (Dagstuhl Seminar 15381)

Authors: Nikolaj S. Bjorner, Jasmin Christian Blanchette, Viorica Sofronie-Stokkermans, and Christoph Weidenbach

Published in: Dagstuhl Reports, Volume 5, Issue 9 (2016)

Abstract
This report documents the program and the outcomes of Dagstuhl Seminar 15381 "Information from Deduction: Models and Proofs". The aim of the seminar was to bring together researchers working in deduction and applications that rely on models and proofs produced by deduction tools. Proofs and models serve two main purposes: (1) as an upcoming paradigm towards the next generation of automated deduction tools where search relies on (partial) proofs and models; (2) as the actual result of an automated deduction tool, which is increasingly integrated into application tools. Applications are rarely well served by a simple yes/no answer from a deduction tool. Many use models as certificates for satisfiability to extract feasible program executions; others use proof objects as certificates for unsatisfiability in the context of high-integrity systems development. Models and proofs even play an integral role within deductive tools as major methods for efficient proof search rely on refining a simultaneous search for a model or a proof. The topic is in a sense evergreen: models and proofs will always be an integral part of deduction. Nonetheless, the seminar was especially timely given recent activities in deduction and applications, and it enabled researchers from different subcommunities to communicate with each other towards exploiting synergies.
Cite as

Nikolaj S. Bjorner, Jasmin Christian Blanchette, Viorica Sofronie-Stokkermans, and Christoph Weidenbach. Information from Deduction: Models and Proofs (Dagstuhl Seminar 15381). In Dagstuhl Reports, Volume 5, Issue 9, pp. 18-37, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2016)

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@Article{bjorner_et_al:DagRep.5.9.18,
  author =	{Bjorner, Nikolaj S. and Blanchette, Jasmin Christian and Sofronie-Stokkermans, Viorica and Weidenbach, Christoph},
  title =	{{Information from Deduction: Models and Proofs (Dagstuhl Seminar 15381)}},
  pages =	{18--37},
  journal =	{Dagstuhl Reports},
  ISSN =	{2192-5283},
  year =	{2016},
  volume =	{5},
  number =	{9},
  editor =	{Bjorner, Nikolaj S. and Blanchette, Jasmin Christian and Sofronie-Stokkermans, Viorica and Weidenbach, Christoph},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops.dagstuhl.de/entities/document/10.4230/DagRep.5.9.18},
  URN =		{urn:nbn:de:0030-drops-56830},
  doi =		{10.4230/DagRep.5.9.18},
  annote =	{Keywords: Automated Deduction, Program Verification, Certification}
}
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