LogicMANY-VALUE LOGICS
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 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…
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…
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…
Writing PhilosophyWRITING PHILOSOPHY
November 24, 2023

WRITING PHILOSOPHY

How Do You Do Philosophy? Writing Is Central To Philosophy What Philosophy Professors Want From Student Writers What Is Good Writing? What Is Good Philosophical Writing? Grading Criteria for Philosophy…
Philosophy BranchesTraditional Branches of PhilosophyNATURAL PHILOSOPHY
December 12, 2023

NATURAL PHILOSOPHY

An important historical branch designation rather than a current one, natural philosophy was the study of nature and the physical universe by philosophical (that is, largely empirical reason-based) methods.
Philosophy BranchesTraditional Branches of PhilosophyETHICS
December 12, 2023

ETHICS

Ethics is the study of morality and can be divided into three main areas of inquiry. Descriptive ethics concerns the actual moral beliefs held by specific individuals or societies and…
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…
THE EARLY MODERN PERIODHistory 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…
WHAT IS PHILOSOPHY?WHAT IS PHILOSOPHY?
November 12, 2023

WHAT IS PHILOSOPHY?

THE EARLY MODERN PERIODHistory Of PhilosophyRATIONALISM
November 15, 2023

RATIONALISM

Rationalism designates a variety of philosophical schools maintaining that reason, as opposed to empirical investigation, is the most important method of acquiring knowledge.
MEDIEVAL PHILOSOPHYHistory Of PhilosophyTHOMISM
November 15, 2023

THOMISM

A school of thought based on the work of Saint Thomas Aquinas (1225–1274), Thomism is, like Scholasticism, principally concerned with metaphysics and understanding the attributes of God.
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
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…
STRATEGIC WRITING CHOICESWriting PhilosophySTRATEGIC WRITING CHOICES FOR PHILOSOPHY CLASS
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…

Books

  • Language, Truth and Logic (Dover Books on Western Philosophy)

    $7.95
  • Mindfulness for Beginners: Reclaiming the Present Moment–and Your Life

    $19.50
  • The Extended Mind: The Power of Thinking Outside the Brain

    $28.00
  • The Manual: A Philosopher’s Guide to Life

    $16.99
  • Avatar: The Last Airbender and Philosophy: Wisdom from Aang to Zuko (The Blackwell Philosophy and Pop Culture Series)

    $21.95
  • Self Reliance

    $4.99
  • The Art of Happiness: A Handbook for Living

    $9.99
  • A Guide to the Good Life: The Ancient Art of Stoic Joy

    $15.99
  • La sociedad del cansancio: Tercera edición ampliada (Spanish Edition)

    $13.95
  • The Complete Book of Yoga: Karma Yoga, Bhakti Yoga, Raja Yoga, Jnana Yoga

    $8.99
  • The Complete I Ching ― 10th Anniversary Edition: The Definitive Translation by Taoist Master Alfred Huang

    $19.95
  • Deleuze and Music (Deleuze Connections)

    $42.60
  • Discourse on Sciences and Arts

    $6.99
  • The I Ching Workbook

    $18.79
  • Virtue Ethics: An Introduction (Prometheus Lectures)

    $25.03
  • The 17th Suitcase: Vignettes from a South African Family

    $17.00

The Atomos Blog

Can Math Prove Its Own Sanity? — A Deep Dive into Artemov’s Landmark Paper

Can Math Prove Its Own Sanity? — A Deep Dive into Artemov’s Landmark Paper

Philosophy StudentPhilosophy Student
Can Math Prove Its Own Sanity? — A Deep Dive into Artemov’s Landmark PaperProof TheoryUncategorized

Can Math Prove Its Own Sanity? — A Deep Dive into Artemov’s Landmark Paper

Philosophy StudentPhilosophy StudentApril 14, 2026
Philosophy of Law: An IntroductionAtomosPHILOSOPHY OF LAW

Philosophy of Law: An Introduction

Atomos EditorAtomos EditorJanuary 10, 2026
Philosophy of Science: An IntroductionAtomosPHILOSOPHY OF SCIENCE

Philosophy of Science: An Introduction

Atomos EditorAtomos EditorJanuary 10, 2026
Aesthetics: An IntroductionAESTHETICSAtomos

Aesthetics: An Introduction

Atomos EditorAtomos EditorJanuary 10, 2026
Epistemology: An IntroductionAtomosEPISTEMOLOGY

Epistemology: An Introduction

Atomos EditorAtomos EditorJanuary 10, 2026
Ethics: An IntroductionAtomosETHICS

Ethics: An Introduction

Atomos EditorAtomos EditorJanuary 10, 2026
Logic: An IntroductionAtomosLOGIC

Logic: An Introduction

Atomos EditorAtomos EditorJanuary 10, 2026
Metaphysics: An IntroductionAtomosMETAPHYSICS

Metaphysics: An Introduction

Atomos EditorAtomos EditorJanuary 10, 2026
Philosophy of History: An IntroductionAtomosPHILOSOPHY OF HISTORY

Philosophy of History: An Introduction

Atomos EditorAtomos EditorJanuary 10, 2026
Philosophy of Language: An IntroductionAtomosPHILOSOPHY OF LANGUAGE

Philosophy of Language: An Introduction

Atomos EditorAtomos EditorJanuary 10, 2026
Philosophy of Mind: An IntroductionAtomosPHILOSOPHY OF MIND

Philosophy of Mind: An Introduction

Atomos EditorAtomos EditorJanuary 10, 2026

Terms & Concepts

E

Ex contradictione quodlibet

The logical principle that from a contradiction everything follows. Non-classical logics designed to invalidate this principle are known as paraconsistent logics. https://youtube.com/shorts/wF0zrFYUM90?feature=share
A

Analytic truth

Both demonstrably and necessarily true, owing to the logical form of the sentence or the meanings of its component words. https://youtube.com/shorts/5fZIVy7_0kw?feature=share
C

Categories

1) Aristotle’s four-fold classification system of language and ontology. 2) Kant’s term, which he took from Aristotle, for the basic and a priori concepts that structure human knowledge. https://youtube.com/shorts/AM-dTf2DPv4?feature=share
O
Omnipotent
C
Contradiction introduction
D
Duty
M
Morality
C
Contradictories
A
a posteriori (always with lowercase a)
R
Relational predicate
S
Society
N
Negation
View All