Propositional calculus | Classical logic
Stoic logic is the system of propositional logic developed by the Stoic philosophers in ancient Greece. It was one of the two great systems of logic in the classical world. It was largely built and shaped by Chrysippus, the third head of the Stoic school in the 3rd-century BCE. Chrysippus's logic differed from Aristotle's term logic because it was based on the analysis of propositions rather than terms. The smallest unit in Stoic logic is an assertible (the Stoic equivalent of a proposition) which is the content of a statement such as "it is day". Assertibles have a truth-value such that they are only true or false depending on when it was expressed (e.g. the assertible "it is night" will only be true if it is true that it is night). In contrast, Aristollean propositions strongly affirm or deny a predicate of a subject and seek to have its truth validated or falsified independent of context. Compound assertibles can be built up from simple ones through the use of logical connectives. The resulting syllogistic was grounded on five basic indemonstrable arguments to which all other syllogisms were claimed to be reducible. Towards the end of antiquity Stoic logic was neglected in favour of Aristotle's logic, and as a result the Stoic writings on logic did not survive, and the only accounts of it were incomplete reports by other writers. Knowledge about Stoic logic as a system was lost until the 20th century, when logicians familiar with the modern propositional calculus reappraised the ancient accounts of it. (Wikipedia).
How the Stoics can help us tackle anxiety, fury and loss of perspective - and realise that very little is needed to make a happy life. If you like our films, take a look at our shop (we ship worldwide): https://goo.gl/LCWucX FURTHER READING “‘Stoicism’ was a philosophy that flourished
From playlist WESTERN PHILOSOPHY
A brief history of logic: Stoics and other thinkers | MathFoundations 252 | NJ Wildberger
While Aristotle's logic ultimately became dominant, in ancient Greek times there was an important alternative school of logical thought: formed by the Stoics going back to Zeno of Citium (not the Zeno of the paradoxes) and most clearly formulated by Chrysippus. This logic uses connectives
From playlist Boole's Logic and Circuit Analysis
Logic: The Structure of Reason
As a tool for characterizing rational thought, logic cuts across many philosophical disciplines and lies at the core of mathematics and computer science. Drawing on Aristotle’s Organon, Russell’s Principia Mathematica, and other central works, this program tracks the evolution of logic, be
From playlist Logic & Philosophy of Mathematics
Stoicism is a philosophy worked out in Ancient Greece and Rome thousands of years ago, but it remains hugely relevant to our own times: it offers us ways of learning how to cope with anxiety, fear and the dread of losing money, status and love. For gifts and more from The School of Life,
From playlist SELF
How to Deal with Tragedy - Stoicism | Philosophy Tube
When awful things happen, can letting go of your emotions and embracing Ancient Greek rationalism be the answer? Ethics Playlist: http://tinyurl.com/pnou49m Subscribe! http://www.youtube.com/subscription_center?add_user=thephilosophytube Patreon: http://www.patreon.com/PhilosophyTube A
From playlist ETHICS
In this module, Dr Liz Gloyn (Royal Holloway, University of London) thinks through the figure of Seneca and the key principles of Stoicism, focusing in particular on: (i) Seneca's life and times, and his relationship with the imperial family – especially Nero; (ii) the eclecticism of his l
From playlist Classics & Ancient History
How Seneca Slayed Stress (and the Rest of Us Can Too) | Ryan Holiday | Stoicism
To learn the strategies Seneca and the Stoics used to combat stress, check out the Daily Stoic Slay Your Stress course: http://dailystoic.com/stress Stress eats away at us and rather than making us more productive, it often slows us down and makes us sloppy, compounding on itself. We tend
From playlist African Grey Parrot Talking
Stoicism: Turn suffering into unshakeable inner strength | Chloé Valdary
Chloé Valdary shares the ancient Stoic principle that can defeat modern despair. Subscribe to Big Think on YouTube ► https://www.youtube.com/channel/UCvQECJukTDE2i6aCoMnS-Vg?sub_confirmation=1 Up next, Don’t chase happiness. Become antifragile ► https://youtu.be/e-or_D-qNqM It can be dif
From playlist Get smarter, faster
Stoic Ethics (History of Philosophy)
Peter Adamson considers two of the Stoics’ most challenging ideas, a determinism that leaves room for moral responsibility, and the ideal of an ethically perfect sage. This is an episode of Peter Adamson's podcast on the History of Philosophy from a few years back. For more information abo
From playlist Free Will, Determinism, & Action
Stoicism: Become Undefeatable - https://aperture.gg/stoicism Follow me on Instagram: https://www.instagram.com/mcewen/ Twitter: https://twitter.com/TheApertureYT Stoicism helps us steer through past and present storms into calmer and more peaceful waters. And if our ship sinks and we all
From playlist Philosophy & Psychology 🧠
How Is Everything Interconnected?
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From playlist Newest Episodes
The philosophy of Stoicism - Massimo Pigliucci
View full lesson: http://ed.ted.com/lessons/the-philosophy-of-stoicism-massimo-pigliucci What is the best life we can live? How can we cope with whatever the universe throws at us and keep thriving nonetheless? The ancient Greco-Roman philosophy of Stoicism explains that while we may not
From playlist New TED-Ed Originals
Are You Rational? #3 Are You Emotional? | Philosophy Tube
Part 3: Are feels and reals really so different? Why have reason and emotion historically been opposed? Why is it that women and subalterns have been assigned emotionality and irrationality? Watch the series: Watch the series: https://www.youtube.com/watch?v=QiFOZEiehFo&list=PLvoAL-KSZ32c
From playlist KNOWLEDGE, LOGIC, & RELIGION
Philosophy and the Science of Human Nature (PHIL 181) Professor Gendler begins with a discussion of the Stoic philosopher Epictetus, who argued that once we recognize that some things are up to us and other things are not up to us, we can see that happiness requires detaching ourselves
From playlist Philosophy and the Science of Human Nature w/ Tamar Gendler
Philosophy means, in Ancient Greek, the love of wisdom. But the word wisdom can sound very big and forbidding; what does it really mean to be wise? And how might we consciously strive to be a little wiser? If you like our films take a look at our shop (we ship worldwide): http://www.thesch
From playlist SELF
The Gospel of John: The Prologue
Yale Divinity School Dean Harold W. Attridge and Professor Emeritus David L. Bartlett discuss the Gospel of John. This is session 1 of 8 videos for the Gospel of John. The conversation is part of the Yale Bible Study Series presented in cooperation with The Congregational Church of New Ca
From playlist Yale Divinity Bible Study Series
Introduction to Predicate Logic
This video introduces predicate logic. mathispower4u.com
From playlist Symbolic Logic and Proofs (Discrete Math)