- English
- ePUB (mobile friendly)
- Available on iOS & Android
eBook - ePub
Plato's Logic
About this book
Plato uses a logic without defining or naming it, somewhat as verbs are used in daily life without saying "verbs" or defining them. Linguists may define them. Similarly, Plato's Logic identifies Plato's logic: Plato does not. He lives by it.
The logic in question is used to track down first causes. These begin or end causal series of all four of Aristotle's types of cause. Thus for instance God in the Laws is the first mover in a chain of movers, so God is the first efficient cause. The Republic's Form of the Good, again, is the highest authority or order, and due to this it is the first formal cause. The Symposium's Form of Beauty is the first final cause, that is the ultimate reward. The Phaedo's psyche is a first material cause, being simple (and therefore immortal).
This is not a logic in Aristotle's sense, but luckily that is not the only sense there is. Plato's logic is relational, not Aristotelian. This is because the causes are easiest to interpret as causal relations. Then the causal relations form series, and the series begin or end in Forms or Gods. In this book's formal vocabulary Plato's logic is always of the form aRbRc… zRz (if the terminus is a God) or aRbRc… zRR (if the terminus is a Form).
All of Plato's writing is not quite like this, that is true. But his wildest and most characteristic writings are. He does admittedly write many other things as well. But the core of his philosophy consists of his hyperbolical claims about the Forms and Gods, and so they deserve to be in the limelight.
The general idea of this book is that Plato's idealistic demands make sense in relational idioms. The idealism is not nonsensical or fallacious but rational. Speculation is a duty, not a joke or a sin. Numerous recent scholars are attacked because they belittle it.
The logic in question is used to track down first causes. These begin or end causal series of all four of Aristotle's types of cause. Thus for instance God in the Laws is the first mover in a chain of movers, so God is the first efficient cause. The Republic's Form of the Good, again, is the highest authority or order, and due to this it is the first formal cause. The Symposium's Form of Beauty is the first final cause, that is the ultimate reward. The Phaedo's psyche is a first material cause, being simple (and therefore immortal).
This is not a logic in Aristotle's sense, but luckily that is not the only sense there is. Plato's logic is relational, not Aristotelian. This is because the causes are easiest to interpret as causal relations. Then the causal relations form series, and the series begin or end in Forms or Gods. In this book's formal vocabulary Plato's logic is always of the form aRbRc… zRz (if the terminus is a God) or aRbRc… zRR (if the terminus is a Form).
All of Plato's writing is not quite like this, that is true. But his wildest and most characteristic writings are. He does admittedly write many other things as well. But the core of his philosophy consists of his hyperbolical claims about the Forms and Gods, and so they deserve to be in the limelight.
The general idea of this book is that Plato's idealistic demands make sense in relational idioms. The idealism is not nonsensical or fallacious but rational. Speculation is a duty, not a joke or a sin. Numerous recent scholars are attacked because they belittle it.
Frequently asked questions
Yes, you can cancel anytime from the Subscription tab in your account settings on the Perlego website. Your subscription will stay active until the end of your current billing period. Learn how to cancel your subscription.
At the moment all of our mobile-responsive ePub books are available to download via the app. Most of our PDFs are also available to download and we're working on making the final remaining ones downloadable now. Learn more here.
Perlego offers two plans: Essential and Complete
- Essential is ideal for learners and professionals who enjoy exploring a wide range of subjects. Access the Essential Library with 800,000+ trusted titles and best-sellers across business, personal growth, and the humanities. Includes unlimited reading time and Standard Read Aloud voice.
- Complete: Perfect for advanced learners and researchers needing full, unrestricted access. Unlock 1.4M+ books across hundreds of subjects, including academic and specialized titles. The Complete Plan also includes advanced features like Premium Read Aloud and Research Assistant.
We are an online textbook subscription service, where you can get access to an entire online library for less than the price of a single book per month. With over 1 million books across 1000+ topics, we’ve got you covered! Learn more here.
Look out for the read-aloud symbol on your next book to see if you can listen to it. The read-aloud tool reads text aloud for you, highlighting the text as it is being read. You can pause it, speed it up and slow it down. Learn more here.
Yes! You can use the Perlego app on both iOS or Android devices to read anytime, anywhere — even offline. Perfect for commutes or when you’re on the go.
Please note we cannot support devices running on iOS 13 and Android 7 or earlier. Learn more about using the app.
Please note we cannot support devices running on iOS 13 and Android 7 or earlier. Learn more about using the app.
Yes, you can access Plato's Logic by Tommi Juhani Hanhijärvi in PDF and/or ePUB format, as well as other popular books in Philosophy & Ancient & Classical Philosophy. We have over one million books available in our catalogue for you to explore.
Information
Table of contents
- Contents
- Preface
- Chapter 1: Introduction
- Chapter 2: The Hippias Major
- Chapter 3: The Phaedo
- Chapter 4: The Symposium
- Chapter 5: The Republic
- Chapter 6: The Laws
- Chapter 7: The Lysis?
- Chapter 8: The Gorgias?
- Chapter 9: The Meno?
- Chapter 10: The Protagoras?
- Chapter 11: The Phaedrus?
- Chapter 12: The Timaeus?
- Chapter 13: The Theaetetus?
- Bibliography