Our systems are now restored following recent technical disruption, and we’re working hard to catch up on publishing. We apologise for the inconvenience caused. Find out more

Recommended product

Popular links

Popular links


Formal Logic

Formal Logic

Formal Logic

Or, The Calculus of Inference, Necessary and Probable
Augustus De Morgan
August 2014
Paperback
9781108070782
NZD$69.95
inc GST
Paperback

    From the end of antiquity to the middle of the nineteenth century it was generally believed that Aristotle had said all that there was to say concerning the rules of logic and inference. One of the ablest British mathematicians of his age, Augustus De Morgan (1806–71) played an important role in overturning that assumption with the publication of this book in 1847. He attempts to do several things with what we now see as varying degrees of success. The first is to treat logic as a branch of mathematics, more specifically as algebra. Here his contributions include his laws of complementation and the notion of a universe set. De Morgan also tries to tie together formal and probabilistic inference. Although he is never less than acute, the major advances in probability and statistics at the beginning of the twentieth century make this part of the book rather less prophetic.

    Product details

    August 2014
    Paperback
    9781108070782
    358 pages
    216 × 140 × 20 mm
    0.46kg
    Available

    Table of Contents

    • Preface
    • 1. First notions
    • 2. On objects, ideas, and names
    • 3. On the abstract form of the proposition
    • 4. On propositions
    • 5. On the syllogism
    • 6. On the syllogism (cont.)
    • 7. On the Aristotelian syllogism
    • 8. On the numerically definite syllogism
    • 9. On probability
    • 10. On probable inference
    • 11. On induction
    • 12. On old logical terms
    • 13. On fallacies
    • 14. On the verbal description of the syllogism
    • Appendices.
      Author
    • Augustus De Morgan