Computatio, Sive, Logica: Logic

By Thomas Hobbes; Aloysius Martinich et al. | Go to book overview

Introduction

Hobbes's place and role in the history of political philosophy is both well established and well known. What is less established and less known are his logic and philosophy of language which, in some respects, are similar to scholastic doctrines about logic and philosophical method, especially those of the nominalists, and, in other respects, to some of the most contemporary theories in the philosophy of language. Thus, in addition to my explanatory remarks on Hobbes's text, I will include in my commentary special references, when appropriate, to such seemingly unrelated philosophers as William of Ockham and Paul Grice.

Aside from the first chapter, which is a short introduction to philosophy in general, and the last chapter, which concerns philosophical method, the structure of Hobbes's Logic is similar to many introductions to logic in both the middle ages and the seventeenth century (see Bochenski, pp. 159-162, for the contents of several medieval logic textbooks). The first three chapters in medieval logics typically deal with the nature of terms, propositions and syllogisms respectively. The medieval logicians have a standard justification for this plan. William of Sherwood said, "Logic is principally concerned with the syllogism, the understanding of which requires an understanding of the proposition; and because every proposition is made up of terms, an understanding of the term is necessary" (p. 21); William of Ockham said, "All those who deal with logic try to establish that arguments are composed of propositions, and proposition of terms" ( Summa logicae, I. 1).

After the introduction to philosophy, we see that Hobbes's Logic follows the same plan. Medieval logic texts might then discuss dialectical reasoning and the properties of terms, e.g.,

-337-

Notes for this page

Add a new note
If you are trying to select text to create highlights or citations, remember that you must now click or tap on the first word, and then click or tap on the last word.
One moment ...
Default project is now your active project.
Project items

Items saved from this book

This book has been saved
Highlights (0)
Some of your highlights are legacy items.

Highlights saved before July 30, 2012 will not be displayed on their respective source pages.

You can easily re-create the highlights by opening the book page or article, selecting the text, and clicking “Highlight.”

Citations (0)
Some of your citations are legacy items.

Any citation created before July 30, 2012 will labeled as a “Cited page.” New citations will be saved as cited passages, pages or articles.

We also added the ability to view new citations from your projects or the book or article where you created them.

Notes (0)
Bookmarks (0)

You have no saved items from this book

Project items include:
  • Saved book/article
  • Highlights
  • Quotes/citations
  • Notes
  • Bookmarks
Notes
Cite this page

Cited page

Style
Citations are available only to our active members.
Buy instant access to cite pages or passages in MLA, APA and Chicago citation styles.

(Einhorn, 1992, p. 25)

(Einhorn 25)

1. Lois J. Einhorn, Abraham Lincoln, the Orator: Penetrating the Lincoln Legend (Westport, CT: Greenwood Press, 1992), 25, http://www.questia.com/read/27419298.

Cited page

Bookmark this page
Computatio, Sive, Logica: Logic
Table of contents

Table of contents

  • Title Page 3
  • Contents 5
  • Hobbes's Theory of Language, Speech, and Reasoning 7
  • Acknowledgements 9
  • Editors' Foreword 11
  • Misinterpretations of Hobbes; the Correct View 15
  • Hobbes's Theory of Signifying 30
  • Names, Propositions, and Their Significations 50
  • The Problem of Abstract Names 73
  • Reasoning as Computation: Hobbes and Leibniz 105
  • The Originality of Hobbes: Contrasts and Comparisons with Other Theories 127
  • Appendix - Hobbes's Account of Speech Acts Other Than the Assertive 149
  • Notes 153
  • Logic 171
  • Coamutatio Sive Logica. 172
  • De Vocabulis. 192
  • De Propositione. 222
  • De Syllogismo. 248
  • De Erratione, Falsitate Et Captionibus. 268
  • De Methodo. 286
  • Translator's Commentary 333
  • Acknowledgements 335
  • Introduction 337
  • Philosophy 339
  • Words 346
  • Propositions 365
  • The Syllogism 380
  • Erroneousness, Falsity and Fallacies 402
  • On Method 414
  • Bibliography 441
  • Index 445
Settings

Settings

Typeface
Text size Smaller Larger Reset View mode
Search within

Search within this book

Look up

Look up a word

  • Dictionary
  • Thesaurus
Please submit a word or phrase above.
Print this page

Print this page

Why can't I print more than one page at a time?

Help
Full screen
/ 449

matching results for page

    Questia reader help

    How to highlight and cite specific passages

    1. Click or tap the first word you want to select.
    2. Click or tap the last word you want to select, and you’ll see everything in between get selected.
    3. You’ll then get a menu of options like creating a highlight or a citation from that passage of text.

    OK, got it!

    Cited passage

    Style
    Citations are available only to our active members.
    Buy instant access to cite pages or passages in MLA, APA and Chicago citation styles.

    "Portraying himself as an honest, ordinary person helped Lincoln identify with his audiences." (Einhorn, 1992, p. 25).

    "Portraying himself as an honest, ordinary person helped Lincoln identify with his audiences." (Einhorn 25)

    "Portraying himself as an honest, ordinary person helped Lincoln identify with his audiences."1

    1. Lois J. Einhorn, Abraham Lincoln, the Orator: Penetrating the Lincoln Legend (Westport, CT: Greenwood Press, 1992), 25, http://www.questia.com/read/27419298.

    Cited passage

    Thanks for trying Questia!

    Please continue trying out our research tools, but please note, full functionality is available only to our active members.

    Your work will be lost once you leave this Web page.

    Buy instant access to save your work.

    Already a member? Log in now.

    Oops!

    An unknown error has occurred. Please click the button below to reload the page. If the problem persists, please try again in a little while.