On the Logos: A Naïve View on Ordinary Reasoning and Fuzzy Logic

  • Enric Trillas

Part of the Studies in Fuzziness and Soft Computing book series (STUDFUZZ, volume 354)

Table of contents

  1. Front Matter
    Pages i-xiv
  2. Sowing Ideas

    1. Front Matter
      Pages 1-1
    2. Enric Trillas
      Pages 3-7
    3. Enric Trillas
      Pages 9-23
    4. Enric Trillas
      Pages 25-34
    5. Enric Trillas
      Pages 47-55
    6. Enric Trillas
      Pages 63-74
    7. Enric Trillas
      Pages 89-92
    8. Enric Trillas
      Pages 93-102
    9. Enric Trillas
      Pages 103-109
  3. Gathering Questions

    1. Front Matter
      Pages 121-121
    2. Enric Trillas
      Pages 161-171
    3. Enric Trillas
      Pages 173-177
    4. Enric Trillas
      Pages 179-183
    5. Enric Trillas
      Pages 185-190
    6. Enric Trillas
      Pages 191-194
    7. Enric Trillas
      Pages 195-205
    8. Enric Trillas
      Pages 207-209
  4. Back Matter
    Pages 211-213

About this book


This book offers an inspiring and naïve view on language and reasoning. It presents a new approach to ordinary reasoning that follows the author’s former work on fuzzy logic. Starting from a pragmatic scientific view on meaning as a quantity, and the common sense reasoning from a primitive notion of inference, which is shared by both laypeople and experts, the book shows how this can evolve, through the addition of more and more suppositions, into various formal and specialized modes of precise, imprecise, and approximate reasoning. The logos are intended here as a synonym for rationality, which is usually shown by the processes of questioning, guessing, telling, and computing.

Written in a discursive style and without too many technicalities, the book presents a number of reflections on the study of reasoning, together with a new perspective on fuzzy logic and Zadeh’s “computing with words” grounded in both language and reasoning. It also highlights some mathematical developments supporting this view. Lastly, it addresses a series of questions aimed at fostering new discussions and future research into this topic. All in all, this book represents an inspiring read for professors and researchers in computer science, and fuzzy logic in particular, as well as for psychologists, linguists and philosophers.


Plain Language, Meaning and Analogy Models of Reasoning Commonsense Reasoning Conjectures and Refutations Types of Conjectures Monotony in Reasoning Leibniz ‘Calculemus’ Falsification of Hypotheses Hypotheses Through Speculation Wild Speculation Inductive and Deductive Reasoning Precise Versus Imprecise Reasoning Formal Reasoning Modeling by Fuzzy Sets

Authors and affiliations

  • Enric Trillas
    • 1
  1. 1.University of Oviedo OviedoSpain

Bibliographic information

  • DOI
  • Copyright Information Springer International Publishing AG 2017
  • Publisher Name Springer, Cham
  • eBook Packages Engineering Engineering (R0)
  • Print ISBN 978-3-319-56052-6
  • Online ISBN 978-3-319-56053-3
  • Series Print ISSN 1434-9922
  • Series Online ISSN 1860-0808
  • Buy this book on publisher's site
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