Reversal Fuzzy Switch Graphs

Fuzzy Switch Graphs (FSG) generalize the notion of Fuzzy Graphs by adding high-order arrows and aggregation functions which update the fuzzy values of arrows whenever a zero-order arrow is crossed. In this paper, we propose a more general structure called

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Gustavo Carvalho Volker Stolz (Eds.)

Formal Methods: Foundations and Applications 23rd Brazilian Symposium, SBMF 2020 Ouro Preto, Brazil, November 25–27, 2020 Proceedings

Lecture Notes in Computer Science Founding Editors Gerhard Goos Karlsruhe Institute of Technology, Karlsruhe, Germany Juris Hartmanis Cornell University, Ithaca, NY, USA

Editorial Board Members Elisa Bertino Purdue University, West Lafayette, IN, USA Wen Gao Peking University, Beijing, China Bernhard Steffen TU Dortmund University, Dortmund, Germany Gerhard Woeginger RWTH Aachen, Aachen, Germany Moti Yung Columbia University, New York, NY, USA

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More information about this subseries at http://www.springer.com/series/7408

Gustavo Carvalho Volker Stolz (Eds.) •

Formal Methods: Foundations and Applications 23rd Brazilian Symposium, SBMF 2020 Ouro Preto, Brazil, November 25–27, 2020 Proceedings

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Editors Gustavo Carvalho Federal University of Pernambuco Recife, Brazil

Volker Stolz Western Norway University of Applied Sciences Bergen, Norway

ISSN 0302-9743 ISSN 1611-3349 (electronic) Lecture Notes in Computer Science ISBN 978-3-030-63881-8 ISBN 978-3-030-63882-5 (eBook) https://doi.org/10.1007/978-3-030-63882-5 LNCS Sublibrary: SL2 – Programming and Software Engineering © Springer Nature Switzerland AG 2020 Chapter “Safety Assurance of a High Voltage Controller for an Industrial Robotic System” is licensed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/ licenses/by/4.0/). For further details see licence information in the chapter. This work is subject to copyright. All rights are reserved by the Publisher, whether the whole or part of the material is concerned, specifically the rights of translation, reprinting, reuse of illustrations, recitation, broadcasting, reproduction on microfilms or in any other physical way, and transmission or information storage and retrieval, electronic adaptation, computer software, or by similar or dissimilar methodology now known or hereafter developed. The use of general descriptive names, registered names, trademarks, service marks, etc. in this publication does not imply, even in the absence of a specific statement, that such names are exempt from the relevant protective laws and regulations and therefore free for general use. The publisher, the authors and the editors are safe to assume that the advice and information in this book are believed to be true and accurate at the date of publication. Neither the publisher nor the authors or the editors give a warranty, expressed or implied, with respect to the material contained herein or for any errors or omissions that may have been made. The publisher remains neutral with regard to jurisdictional claims in published maps and institutional affiliations. This Springer imprint is published by the registered company Springer Nature Switzerland AG The registered company address is: Gewerbestrasse 11, 6330 Cham, Switzerland

Preface

This volume contains the papers presented at the 23rd Brazilian Sym