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.
NATURAL PHILOSOPHY
An important historical branch designation rather than a current one, natural philosophy was the study of nature and the physical…
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INTUITIONISM
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…
HIGHER-ORDER LOGICS
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…
PROPOSITIONAL CALCULUS (PROPOSITIONAL LOGIC)
PROPOSITIONAL CALCULUS (PROPOSITIONAL LOGIC)
The simplest formal (logical) language is the propositional calculus. This considers the logical relationships that hold between complete propositions.
BIOETHICS
BIOETHICS
A branch of ethics concerned with the moral and political issues raised by medical science, and with advances in medical technology, bioethics has now become a largely autonomous area of…
LOGIC
LOGIC
Logic is concerned with studying the inferences we make, and the formal languages developed to systematize those inferences. This includes both the proof-theories and semantics for these languages, as well…
THE PHILOSOPHICAL WRITING PROCESS
THE PHILOSOPHICAL WRITING PROCESS
Writing is work, and for many of us, writing is hard work. Writing philosophy adds to this labor an element of intimidation. Whether you are writing an expository—explanatory and descriptive—essay…
EPISTEMOLOGY
EPISTEMOLOGY
Epistemology is the study of knowledge, including its nature and its extent, and of justification (that is, whether a belief is formed in a valid way to justify its being…
BASIC LOGICAL SYMBOLS
BASIC LOGICAL SYMBOLS
¬ one-place logical connective read as “not” or as “is not the case” ~ alternative notation for “not” & two-place logical connective read as “and” ˄ and
METAPHYSICS
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…
GOOD PHILOSOPHICAL WRITING
GOOD PHILOSOPHICAL WRITING
BASICS OF GOOD PHILOSOPHICAL WRITING: A DEEPER DIVE Having surveyed the elements of good writing from 30,000 feet, let’s swoop in on some of the most important specifics. This means…
PHILOSOPHY OF LAW
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…
WHAT IS GOOD PHILOSOPHICAL WRITING?
WHAT IS GOOD PHILOSOPHICAL WRITING?
Writing effectively for a philosophy course does not merely start with the general principles of good writing just outlined, it sets out to show mastery of these principles. It embodies…
MANY-VALUE LOGICS
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…
THE PRE-SOCRATICS
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…
PHILOSOPHIES OF EAST ASIA
The dominant philosophical traditions in this part of the world began in Ancient China from the sixth century to 221…
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Discipline Is Destiny: The Power of Self-Control (The Stoic Virtues Series)
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Stillness Is the Key
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Right Thing, Right Now: Justice in an Unjust World (The Stoic Virtues Series)
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How to Think Like a Roman Emperor: The Stoic Philosophy of Marcus Aurelius
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Letters from a Stoic: Penguin Classics
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Madness and Civilization: A History of Insanity in the Age of Reason
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Everyone is Batsh*t Crazy: How to Overcome Adversity and Achieve Success in Life
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The Meditations of the Emperor Marcus Aurelius Antonius
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Social Acceleration: A New Theory of Modernity (New Directions in Critical Theory, 32)
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True Discipleship: Following Our Master To Calvary
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The Varieties of Religious Experience: Complete and Unabridged (Illustrated)
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Walden: Complete Edition with Original Illustrations
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Engaging Crystallization in Qualitative Research: An Introduction
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Philosophy: 50 Essential Ideas
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Desnuda: Un Retiro con tu Ser (Spanish Edition)
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Heidegger For Beginners
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From Hegel to Nietzsche
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The Crisis of European Sciences and Transcendental Phenomenology: An Introduction to Phenomenological Philosophy (Northwestern University Studies in Phenomenology & Existential Philosophy)
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The Impact of Identity: The Power of Knowing Who You Are
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The Atomos Blog
Natural Function and Perceptual Content
Natural Function and Perceptual Content
Natural Function and Perceptual Content
Natural Function and Perceptual Content
Philosophy of Law: An Introduction
Philosophy of Law: An Introduction
Philosophy of Science: An Introduction
Philosophy of Science: An Introduction
Aesthetics: An Introduction
Aesthetics: An Introduction
Epistemology: An Introduction
Epistemology: An Introduction
Ethics: An Introduction
Ethics: An Introduction
Logic: An Introduction
Logic: An Introduction
Metaphysics: An Introduction
Metaphysics: An Introduction
Philosophy of History: An Introduction
Philosophy of History: An Introduction
Philosophy of Language: An Introduction
Philosophy of Language: An Introduction
Philosophy of Mind: An Introduction
Philosophy of Mind: An Introduction
Philosophy of Technology: An Introduction
Philosophy of Technology: An Introduction
Political and Social Philosophy: An Introduction
Political and Social Philosophy: An Introduction
Environmental Philosophy: An Introduction
Environmental Philosophy: An Introduction
Existentialism and Phenomenology: An Introduction
Existentialism and Phenomenology: An Introduction
Philosophy of Language: An Introduction
Philosophy of Language: An Introduction
Terms & Concepts
Identity of indiscernibles
Gottfried Wilhelm Leibniz’s (1646-1716) principle that it is impossible for two numerically distinct things to be absolutely identical in all respects. https://youtube.com/shorts/Go49Bmv3et4?feature=share
Logical consequence
A statement is a logical consequence of another or others when it is impossible for that statement to be false and if the other(s) is (are) true. (See also validity.)…
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