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 PhilosophyPYTHAGOREANISM
November 15, 2023

PYTHAGOREANISM

Based on the teachings of Pythagoras (c. 570–495 BC) and the school he established inCroton in southern Italy, we may conclude that, in many ways, Pythagoreanism was more ofa mystery…
LogicRELEVANCE LOGICS
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…
LogicHIGHER-ORDER LOGICS
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…
CLASSICAL PHILOSOPHYHistory Of PhilosophySKEPTICISM (PYRRHONISM)
November 15, 2023

SKEPTICISM (PYRRHONISM)

Pyrrhonian Skepticism was founded by Pyrrho of Elis (c. 360–275 BC), who argued that knowledge is impossible. The Skeptics proposed various arguments for their conclusions, including Platonic doubts about the…
FORMS OF PHILOSOPHICAL WRITINGWriting PhilosophyTHE EXPOSITORY PAPER
November 19, 2023

THE EXPOSITORY PAPER

We have already touched on the expository paper, but let’s discuss it briefly here. Look at the adjective expository. It is derived from the noun exposition, which is the noun…
CONTINENTAL PHILOSOPHYHistory Of PhilosophySTRUCTURALISM
November 15, 2023

STRUCTURALISM

Structuralism refers to research undertaken in the social sciences, predominantly in France, between the 1950s and 1970s, which sought to understand various social phenomena as a “closed system” of elements.
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…
LogicQUANTUM LOGIC
November 15, 2023

QUANTUM LOGIC

Most non-classical logics are motivated by either philosophical considerations, such as the metaphysical status of the future, or technical concerns about the neutrality of the logical connectives or the notion…
PHILOSOPHICAL BOOKS AND TEXTPHILOSOPHICAL 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
Writing PhilosophyGOOD PHILOSOPHICAL WRITING
November 23, 2023

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…
History Of PhilosophyCLASSICAL 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…
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…
NON-WESTERN PHILOSOPHICAL TRADITIONSHistory Of PhilosophyINDIAN PHILOSOPHY
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,…
Modern Branches of PhilosophyPhilosophy BranchesPHILOSOPHY OF MATHEMATICS
November 14, 2023

PHILOSOPHY OF MATHEMATICS

The philosophy of mathematics is traditionally concerned with the ontological and epistemological foundations of mathematics. The two questions, of ontology and epistemology, are intimately related, as a satisfactory account of…

Books

  • Lessons from an American Stoic: How Emerson Can Change Your Life

    $21.62
  • Meditations: The Annotated Edition

    $17.99
  • Walden: Introduction and Annotations by Bill McKibben (Concord Library)

    $10.95
  • A Therapeutic Journey: Lessons from The School of Life

    $22.11
  • The Saad Truth about Happiness: 8 Secrets for Leading the Good Life

    $24.36
  • Michel de Montaigne – The Complete Essays (Penguin Classics)

    $25.11
  • Sleeper, Awake: 40 days of companionship for the deconstruction process (The Path of Unlearning)

    $9.97
  • A Little History of Religion (Little Histories)

    $12.99
  • Reason in Philosophy: Animating Ideas

    $31.00
  • Existentialism: A Very Short Introduction

    $11.95
  • Conscious: A Brief Guide to the Fundamental Mystery of the Mind

    $15.89
  • The Socratic Dialogues Middle Period, Volume 2: Phaedrus, Cratylus, Parmenides

    $13.99
  • Thirty Seals & The Seal Of Seals (Collected Works of Giordano Bruno)

    $16.00
Reexamining Spacetime Substantivalism: A Critique of Modal Arbitrariness and Determinism in Teitel’s Framework

Reexamining Spacetime Substantivalism: A Critique of Modal Arbitrariness and Determinism in Teitel’s Framework

Philosophy StudentPhilosophy Student
Reexamining Spacetime Substantivalism: A Critique of Modal Arbitrariness and Determinism in Teitel’s Framework

Reexamining Spacetime Substantivalism: A Critique of Modal Arbitrariness and Determinism in Teitel’s Framework

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Rule-Following and Artificial Intelligence: A Kripkean Perspective

Rule-Following and Artificial Intelligence: A Kripkean Perspective

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The Eternal Coexistence of Consciousness and Spacetime: A Philosophical Inquiry

The Eternal Coexistence of Consciousness and Spacetime: A Philosophical Inquiry

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Embracing Contradiction: An In-Depth Analysis of Dialetheism

Embracing Contradiction: An In-Depth Analysis of Dialetheism

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Analysis of, and Responses to Edmund Gettier’s “Is Justified True Belief Knowledge?”

Analysis of, and Responses to Edmund Gettier’s “Is Justified True Belief Knowledge?”

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The Unstable Foundation: A Critique of the Ontological Proof of God’s Existence

The Unstable Foundation: A Critique of the Ontological Proof of God’s Existence

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Meta-Modal Actuality: A Dynamic Framework for Possibility, Actualization, and Causality

Meta-Modal Actuality: A Dynamic Framework for Possibility, Actualization, and Causality

Philosophy StudentPhilosophy StudentDecember 8, 2025
Killing, Morality, and the Human Condition: A Philosophical Investigation

Killing, Morality, and the Human Condition: A Philosophical Investigation

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The Intricacy of Existence: A Philosophical Exploration of Complexity, Contingency, and Divine Agency

The Intricacy of Existence: A Philosophical Exploration of Complexity, Contingency, and Divine Agency

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The Ethics of Procreation and the Rational Acceptance of Life: A Critical Engagement with Weinberg’s Argument

The Ethics of Procreation and the Rational Acceptance of Life: A Critical Engagement with Weinberg’s Argument

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Imagination, Consciousness, and the Nature of the Soul: A Philosophical Inquiry

Imagination, Consciousness, and the Nature of the Soul: A Philosophical Inquiry

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The Interplay of Karma, Rebirth, and Non-Self in Buddhist Philosophy: A Metaphysical Inquiry

The Interplay of Karma, Rebirth, and Non-Self in Buddhist Philosophy: A Metaphysical Inquiry

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Metaphysical Perspectives: A Comparative Analysis of Theism and Atheism

Metaphysical Perspectives: A Comparative Analysis of Theism and Atheism

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The Infinite Universe, Death, and the Search for Meaning: A Philosophical Exploration of Existence, the Divine, and Human Mortality

The Infinite Universe, Death, and the Search for Meaning: A Philosophical Exploration of Existence, the Divine, and Human Mortality

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The Unconscious Artistry of Artificial Intelligence: A Modern Reflection on Spinoza’s God and the Blind Watchmaker

The Unconscious Artistry of Artificial Intelligence: A Modern Reflection on Spinoza’s God and the Blind Watchmaker

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The Ethics of Procreation and the Rational Acceptance of Life: A Critical Engagement with Weinberg’s Argument

The Ethics of Procreation and the Rational Acceptance of Life: A Critical Engagement with Weinberg’s Argument

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Terms & Concepts

S

Sorites Paradox

Sometimes called the Paradox of the Heap, this is a paradox resulting from vague predicates.We all know what a heap of sand is. We all assume that removing a single…
A

Assumptive proof

A nested proof—that is, a proof that occurs within a larger proof sequence. (See also Subproof.) https://youtube.com/shorts/1a3bbVukq6U?feature=share
I

Immediate inference

An inference from one statement to another. In categorical logic, immediate inferences are made “around” the square of opposition. Other immediate inferences in categorical logic are conversion, obversion, and contraposition.…
A
Aristocracy
D
Determinism
S
Statement
A
a posteriori (always with lowercase a)
E
External meaning
E
Equivocation
P
Prisoner’s Dilemma
P
Possible world
T
Tautological equivalence
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