LogicINTUITIONISM
November 15, 2023

INTUITIONISM

One of the most familiar non-classical logics is intuitionism, which, in simple terms, is based upon the rejection of the law of excluded middle: (P ∨ ¬P). There are both…
History Of PhilosophyPOST-KANTIAN PHILOSOPHY IN THE NINETEENTH CENTURY
November 15, 2023

POST-KANTIAN PHILOSOPHY IN THE NINETEENTH CENTURY

Kant’s philosophy continued to dominate throughout the nineteenth century, although there were increasing concerns about the overall coherence of his system; in particular, there was doubt as to whether the…
WHAT IS PHILOSOPHY?PHILOSOPHICAL FILMS AND TV SHOWS
November 24, 2023

PHILOSOPHICAL FILMS AND TV SHOWS

Note: Some of these titles may be difficult to find, either in DVD format or streaming. Film Animation Animal Farm (1954)Based on George Orwell’s novel of the same name, farm…
History Of PhilosophyCLASSICAL PHILOSOPHYPLATO
November 15, 2023

PLATO

Plato (427–347 BC) was born into a powerful family in Athens but abandoned politics after the execution of his teacher, Socrates; he subsequently traveled, became influenced by the Pythagoreans, and…
History Of PhilosophyATOMISM
November 15, 2023

ATOMISM

Atomism was founded by Leucippus (who flourished around 440 BC) but was primarily elaborated by Democritus (c. 460-370 BC) as a way of reconciling the Eleatic doctrine of the impossibility…
THE EARLY MODERN PERIODHistory Of PhilosophyLIBERALISM
November 15, 2023

LIBERALISM

A political philosophy whose central claim is that a government’s authority is justified only insofar as it secures the liberty of its subjects, Liberalism is generally traced to John Locke…
MEDIEVAL PHILOSOPHYHistory Of PhilosophyMEDIEVAL PHILOSOPHY
November 15, 2023

MEDIEVAL PHILOSOPHY

The Medieval Period is usually dated between the fall of the Western Roman Empire (476)and the beginning of the Renaissance (c. 1300). In terms of philosophy, the period begins inthe…
LogicNON-CLASSICAL LOGIC
November 15, 2023

NON-CLASSICAL LOGIC

While both the predicate calculus and the modal propositional calculus may be seen as extensions of the basic propositional calculus, there are also a variety of formal languages intended as…
Philosophy BranchesTraditional Branches of PhilosophyMETAPHYSICS
December 12, 2023

METAPHYSICS

Metaphysics is the philosophical investigation of reality, including the nature of the world and the entities it contains. While such an investigation inevitably overlaps with natural philosophy—the sciences, especially physics…
PHILOSOPHICAL BOOKS AND TEXTINTRODUCTORY LOGIC TEXTS
November 27, 2023

INTRODUCTORY LOGIC TEXTS

There are some fairly firm distinctions between critical thinking and formal (symbolic) logic texts. Whereas critical thinking focuses broadly on argumentation, formal logic is the study of the principles of…
NON-WESTERN PHILOSOPHICAL TRADITIONSHistory Of PhilosophyMIDDLE EASTERN TRADITIONS
November 15, 2023

MIDDLE EASTERN TRADITIONS

As the Middle East is often called the cradle of civilization, it is also the source of some of the earliest philosophical literature. Much of it is devoted to what…
Writing PhilosophyWHAT IS GOOD WRITING?
November 24, 2023

WHAT IS GOOD WRITING?

What is good music? What is good art? What is good writing? Such questions unleash many opinions. The branch of traditional philosophy called Aesthetics is devoted to answering such questions…
PHILOSOPHICAL BOOKS AND TEXTINTRODUCTORY PHILOSOPHY TEXTS
November 27, 2023

INTRODUCTORY PHILOSOPHY TEXTS

There is no substitute for grappling primary sources. Nevertheless, secondary sources—including scholarly research, literary reviews, historical summaries—are valuable tools. They not only show you how you can begin thinking about…
History Of PhilosophyTHE PRE-SOCRATICS
November 15, 2023

THE PRE-SOCRATICS

The origins of Western philosophy are usually attributed to Thales of Miletus (fl. sixth century BC), who taught that “everything was made of water” and thus that the universe, all…
FORMS OF PHILOSOPHICAL WRITINGTHE PERSONAL ESSAY
November 20, 2023

THE PERSONAL ESSAY

The personal essay is a self-reflective search for meaning. Unlike most philosophical writing, it is not argumentative. Instead, it is exploratory and speculative, often even somewhat confessional. It is typically…

Books

  • Commentary on Aristotle’s De Anima [Aristotelian Commentary Series]

    $36.61
  • Ways of Seeing: Based on the BBC Television Series (Penguin Books for Art)

    $6.67
  • Beyond Good and Evil: The Philosophy Classic (Capstone Classics)

    $9.99
  • On Law, Morality, and Politics (Hackett Classics)

    $7.01
  • Maxims and Reflections

    $8.99
  • Trivium: The Classical Liberal Arts of Grammar, Logic, & Rhetoric (Wooden Books)

    $20.57
  • Letters from a Stoic (Penguin Classics)

    $9.99
  • Stillness Is the Key

    $7.99
  • Hagakure: The Secret Wisdom of the Samurai

    $12.99
  • Filosofía ante el desánimo: Pensamiento crítico para construir una personalidad sólida (Imago Mundi)

    $46.95
  • A Treatise Concerning the Principles of Human Knowledge

    $17.64
  • No-Nonsense Buddhism for Beginners: Clear Answers to Burning Questions about Core Buddhist Teachings

    $11.43
  • Textos sobre la caballería espiritual – Las cuarenta estaciones del alma (Spanish Edition)

    $15.82
  • By George G. M. James: Stolen Legacy: Greek Philosophy is Stolen Egyptian Philosophy

    $13.95
  • On the Infinite, the Universe and the Worlds: Five Cosmological Dialogues (Collected Works of Giordano Bruno)

    $17.00
  • Michel de Montaigne – The Complete Essays (Penguin Classics)

    $25.11

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Terms & Concepts

V

Vicious circle (circular reasoning)

Fallacious reasoning that involves merely asserting as proof the very claim at issue, and then asserting the claim at issue to support the proof: A is true because B is…
O

O-proposition

A negative categorical claim that asserts at least one member of the subject class is excluded from the predicate class. (See also Categorical proposition.) https://youtube.com/shorts/7nM3hq5pwGU?feature=share
B

Behaviorism

A theory of mind in which features of an individual’s mental states are inferred from what is publicly observable. https://youtube.com/shorts/I1cNTvIgLkM?feature=share
S
Superaltern
V
Void
S
Sound
F
Formal proof
A
Antecedent conditions
A
Animism
C
Cogent argument
C
Contingent truth
C
Church-Turing Thesis
View All