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Logic
November 15, 2023

HIGHER-ORDER LOGICS

The language sketched above is better referred to as first-order predicate calculus, as the language only quantifies over (first-order) individuals. A stronger language, second-order predicate calculus, can therefore be constructed…
History Of PhilosophyTHE EARLY MODERN PERIOD
November 15, 2023

THE EARLY MODERN PERIOD

Philosophical thought during the Enlightenment was characterized by a rejection of existing sources of authority. The broadly Aristotelean scientific worldview was undermined by a period of scientific revolution—conventionally beginning with…
Philosophy BranchesTraditional Branches of Philosophy
December 12, 2023

PHILOSOPHY OF LAW

The philosophy of law is concerned with all aspects of theoretical reflection on laws and legal systems and therefore encompasses historical and sociological studies in addition to the philosophical questions…
CONTINENTAL PHILOSOPHYHistory Of Philosophy
November 15, 2023

THE FRANKFURT SCHOOL

A group of philosophers, cultural critics, and social scientists based around the Frankfurt (Germany) Institute for Social Research were primarily concerned with integrating philosophical analysis with then-recent results in the…
History Of PhilosophyNON-WESTERN PHILOSOPHICAL TRADITIONS
November 15, 2023

INDIAN PHILOSOPHY

Philosophy on the Indian subcontinent between 1000 BC and the early centuries of the first millennium was comprised of six major schools of Hindu philosophy (Nyaya, Vaisheshika, Samkhya, Yoga, Mimamsa,…
PHILOSOPHICAL BOOKS AND TEXT
November 23, 2023

PHILOSOPHICAL BOOKS AND TEXT

ESSENTIAL READING IN THE HISTORY OF PHILOSOPHY BOOKS TO GUIDE NOVICE PHILOSOPHY STUDENTS INTRODUCTORY PHILOSOPHY TEXTS GUIDES TO PHILOSOPHICAL WRITING INTRODUCTORY LOGIC TEXTS CRITICAL THINKING AND LOGIC TEXTBOOKS
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…
Logic
November 15, 2023

RELEVANCE LOGICS

A relevance logic is motivated by the idea that the premises of a valid argument must be somehow “relevant” to its conclusion. The idea is motivated by the fact that…
History Of PhilosophyNON-WESTERN PHILOSOPHICAL 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…
CLASSICAL PHILOSOPHYHistory Of Philosophy
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 Philosophy
November 15, 2023

CLASSICAL PHILOSOPHY

The Classical Period in philosophy was dominated by the teachings of Plato (427–347 BC) and Aristotle (384–322 BC) but gradually fell into a decline following the conquest of the independent…
CONTINENTAL PHILOSOPHYHistory Of Philosophy
November 15, 2023

PHENOMENOLOGY

As originally developed by Edmund Husserl (1859–1938), phenomenology seeks to provide a detailed description of the way in which things are presented to us—that is to say, phenomena —in an…
STRATEGIC WRITING CHOICESWriting Philosophy
November 18, 2023

STRATEGIC WRITING CHOICES FOR PHILOSOPHY CLASS

Writing philosophy should not be easy, but you cannot allow it to become impossible. Here are five strategic rules of thumb for embarking on a successful writing project for philosophy…
Logic
November 15, 2023

MANY-VALUE LOGICS

In the classical logics already discussed, the logical connectives are taken to be bivalent—that is, they allow of only two different truth values: true and false. One natural extension to…
History Of PhilosophyPOST-KANTIAN PHILOSOPHY
November 15, 2023

PRAGMATISM

Pragmatism was a philosophical movement in the United States concerned with the relationship between abstract theory and practical activity, and with the value of philosophical reflection.

Books

  • Unidentified Flying Hyperobject: UFOs, Philosophy, and the End of the World

    $21.99
  • The Moral Writings of John Dewey (Great Books in Philosophy)

    $17.99
  • The Half Known Life: In Search of Paradise

    $18.99
  • The Imaginary: A Phenomenological Psychology of the Imagination (Routledge Classics)

    $160.00
  • The Burnout Society

    $12.60
  • Conversations about the Meaning of Life (Conversations about Philosophy)

    $14.99
  • Virtue Ethics: An Introduction (Prometheus Lectures)

    $25.03
  • How to Grow Old: Ancient Wisdom for the Second Half of Life

    $23.70
  • Stoicism: The Essential Guide to Stoicism Philosophy, Wisdom, and History (Stoic Life & Principles)

    $16.99
  • The Art of Travel

    $27.99
  • Aristotle’s Revenge: The Metaphysical Foundations of Physical and Biological Science

    $29.90
  • Perceiving Purpose

    $18.07
  • The Essential Foucault: Selections from the Essential Works of Foucault, 1954-1984

    $23.90
  • Love in the Western World

    $35.15
  • The Miniature Guide to Critical Thinking Concepts and Tools (Thinker’s Guide Library)

    $13.00
  • The Transcendentalists and Their World

    $20.62

Terms & Concepts

C

Category mistake

An error of reasoning based on placing an entity in the wrong ontological or semantic category; Gilbert Ryle (1900-1976) famously argued that the metaphysical distinction between the mind and body…
I

Invalid

An evaluation term for a formally fallacious argument. An argument is invalid when the premises are true, but the conclusion is false. https://youtube.com/shorts/6qoicR_XaGI?feature=share
E

E-proposition

A universal negative categorical claim that asserts the subject and predicate classes are mutually exclusive of each other—that is, the subject class is excluded from the predicate class and vice…
B
Boolean connectives (Boolean operators)
S
Secondary quality
F
Formal proof
C
Categorical Logic
I
Immortality
P
Premise
P
Pragmatism
F
Fact-value distinction
Z
Zoroastrianism
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