# Index of philosophy articles (A–C)

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vte :
* A–C
* D–H
* I–Q
* R–Z
* 'Pataphysics"

## 0–9

* 14th Dalai Lama
* 16 Questions on the Assassination

## A

* A-series and B-series
* A Buyer's Market
* A Calendar of Wisdom
* A Conflict of Visions
* A Contribution to the Critique of Political Economy
* A Defence of Common Sense
* A Defense of Abortion
* A Dissertation on Liberty and Necessity, Pleasure and Pain
* A Few Words on Non-Intervention
* A Fórmula de Deus
* A fortiori argument
* A General View of Positivism
* A Grief Observed
* A Guide for the Perplexed
* A Happy Death
* A History of God
* A History of Murphy's Law
* A History of Philosophy (Copleston)
* A History of Western Philosophy
* A las Barricadas
* A Legend of Old Egypt
* A Letter Concerning Toleration
* A maiore ad minus
* A Mathematician's Apology
* A Message from the Emperor
* A minore ad maius
* A New Era of Thought
* A New Model of the Universe
* A New Philosophy of Society: Assemblage Theory and Social Complexity
* A New Refutation of Time
* A Philosophical Enquiry into the Origin of Our Ideas of the Sublime and Beautiful
* A posteriori
* A priori (philosophy)
* A priori and a posteriori
* A Salty Piece of Land
* A Scanner Darkly
* A Secular Humanist Declaration
* A Short History of Chinese Philosophy
* A System of Logic
* A Thousand Plateaus
* A Thousand Years of Nonlinear History
* A Treatise Concerning the Principles of Human Knowledge
* A Treatise of Human Nature
* A Vindication of Natural Society
* A Vindication of the Rights of Men
* A Vindication of the Rights of Woman
* A Voyage to Arcturus
* A. A. Long
* A. A. Luce
* A. C. Ewing
* A. C. Grayling
* A. D. Gordon
* A. H. Almaas
* A. H. Armstrong
* A. J. Baker (philosopher)
* A. V. Dicey
* A. W. Benn
* A. P. Martinich
* A. R. Natarajan
* Ab ovo
* Abacus logic
* Abahlali baseMjondolo
* Abandonment (existentialism)
* Abas (sophist)
* Abbasgulu Bakikhanov
* Abd al-Karīm ibn Hawāzin al-Qushayri
* Abd al-Rahman al-Kawakibi
* Abd al-Rahman Ibn Khaldun
* Abdallah ibn Yasin
* Abdel-Halim Mahmoud
* Abdel Rahman Badawi
* Abdel Wahab Elmessiri
* Abderites
* Abdoldjavad Falaturi
* Abdolkarim Soroush
* Abductive logic programming
* Abductive reasoning
* Abductive validation
* Abdullah Yusuf Azzam
* Abdurrahman Ibn Khaldun
* Abdurrahmān Ibn Khaldūn
* Abel Paz
* Abhayakaragupta
* Abhidhamma Pitaka
* Abhidharma
* Abhinavagupta
* Abilene paradox
* Abimael Guzmán
* Abjection
* Abjunction
* Abner of Burgos
* Abner Shimony
* Abolishing the Borders from Below
* Abortion
* Abortion debate
* Aboutness
* Abraham Abigdor
* Abraham Abulafia
* Abraham bar Hiyya
* Abraham ben Moses Maimon
* Abraham ben Moses Maimonides
* Abraham Cohen de Herrera
* Abraham Edel
* Abraham ibn Daud
* Abraham Ibn Daud
* Abraham ibn Ezra
* Abraham Ibn Ezra
* Abraham Isaac Kook
* Abraham Joshua Heschel
* Abraham Kaplan
* Abraham Kovoor
* Abraham Leon
* Abraham Robinson
* Abraham Tucker
* Abraham Yagel
* Abraham Yehudah Khein
* Abram Deborin
* Absolute (philosophy)
* Absolute atheism
* Absolute idealism
* Absolute infinite
* Absolute space
* Absolute theory
* Absolute threshold
* Absolute time
* Absolute truth
* Abstinence
* Abstract art
* Abstract entity
* Abstract expressionism
* Abstract Illusionism
* Abstract Imagists
* Abstract labour and concrete labour
* Abstract object
* Abstract objects
* Abstract particulars
* Abstract process
* Abstract semantic graph
* Abstraction
* Abstraction (philosophy)
* Abstractionism
* Absurdism
* Abu'l Hasan Muhammad Ibn Yusuf al-'Amiri
* Abu'l Walid Muhammad Ibn Rushd
* Abu 'Ali al-Husayn Ibn Sina
* Abu al-Hakam al-Kirmani
* Abu al-Hasan al-Ash'ari
* Abu Bakr Ibn Bajja
* Abu Bakr Ibn Bājja
* Abu Bakr Ibn Ţufayl
* Abu Bakr Muhammad Ibn Tufayl
* Abu Bakr Muhammad Ibn Yahya Ibn as-Say'igh Ibn Bajja
* Abu Bakr Muhammad Ibn Zakariyya' al-Razi
* Abu Hamid al-Ghazali
* Abu Hamid Muhammad al-Ghazali
* Abū Hayyān al-Tawhīdī
* Abu Mansur Maturidi
* Abu Muhammad 'Ali Ibn Hazm
* Abu Nasr al-Farabi
* Abū Nasr al-Fārābī
* Abu Rayhan Biruni
* Abu Sulayman al-Sijistani
* Abu Sulayman Muhammad al-Sijistani
* Abu Tahir Marwazi
* Abu Yaqub Sijistani
* Abu Yusuf Ya'qub ibn Ishaq al-Kindi
* Abul Ala Maududi
* Academic art
* Academic authorship
* Academic freedom
* Academic skepticism
* Academy
* Acatalepsy
* Accademia degli Infiammati
* Accent
* Acceptance
* Accessibility
* Accessibility relation
* Accident
* Accident (fallacy)
* Accident (philosophy)
* Accidental necessity
* Accidental properties
* Accidental property
* Accidentalism
* Accidie
* Accountability
* Accountant-client privilege
* Accounting ethics
* Accounting reform
* Accumulation by dispossession
* Acharya Hemachandra
* Achieving Our Country
* Achille Gagliardi
* Achille Varzi (philosopher)
* Achilles paradox
* Achintya Bheda Abheda
* Acosmism
* Acquaintance
* Acquiescence bias
* Acquired taste
* Acrasia
* Acratas
* Acrion
* Act utilitarianism
* Acting Out (book)
* Action (philosophy)
* Action at a distance
* Action Philosophers!
* Action theory (philosophy)
* Action verb
* Active citizenship
* Active intellect
* Actor–observer bias
* Acts of Literature
* Acts of the Apostles
* Actual idealism
* Actual Idealism
* Actual infinite
* Actual infinity
* Actualism
* Actualist
* Actuality
* Actuel Marx
* Actus et potentia
* Actus primus
* Actus purus
* Acumenus
* Acyutananda
* Ad captandum
* Ad feminam
* Ad hoc
* Ad hoc hypothesis
* Ad hominem
* Ad hominem argument
* Ad infinitum
* Ad nauseam
* Ada Albrecht
* Adalbertus Ranconis de Ericinio
* Adam Burski
* Adam de Buckfield
* Adam de Wodeham
* Adam Ferguson
* Adam Ignacy Zabellewicz
* Adam Karl August von Eschenmayer
* Adam Mahrburg
* Adam Morton
* Adam Müller
* Adam of Łowicz
* Adam Parvipontanus
* Adam Pulchrae Mulieris
* Adam Schaff
* Adam Smith
* Adam Steuart
* Adam Tanner (mathematician)
* Adam Weishaupt
* Adam Wodeham
* Adam Zachary Newton
* Adamantios Korais
* Adamites
* Adaptation
* Adaptive bias
* Adaptive grammar
* Adaptive representation
* Adaptive system
* Addiction
* Addison Webster Moore
* Addition (logic)
* Adela Cortina
* Adelard of Bath
* Adevism
* Adi Ophir
* Adi Sanakara Philosophy
* Adi Shankara
* Adiaphora
* Adicity
* Admissible rule
* Adolf Grünbaum
* Adolf Lasson
* Adolf Lindenbaum
* Adolf Reinach
* Adolf von Harnack
* Adolfo Sánchez Vázquez
* Adolfo Veber Tkalčević
* Adolph Stöhr
* Adrastus of Aphrodisias
* Adriaan Koerbagh
* Adrian Piper
* Adriana Cavarero
* Adriano Tilgher (philosopher)
* Adrianus
* Adrsta
* Adultery
* Advaita
* Advaita Vedanta
* Advance health care directive
* Adventures of Wim
* Adverbs
* Adverse effect
* Advertising
* Advice (opinion)
* Aedesia
* Aedesius
* Aeneas of Gaza
* Aenesidemus
* Aenesidemus (book)
* Aequiprobabilism
* Aesara
* Aeschines of Neapolis
* Aeschines of Sphettus
* Aesthetic distance
* Aesthetic emotions
* Aesthetic of Ugliness
* Aesthetic Realism
* Aesthetic relativism
* Aestheticism
* Aestheticization of politics
* Aestheticization of violence
* Aesthetics
* Aesthetics of music
* Aeterni Patris
* Aether
* Aether (classical element)
* Aetius (philosopher)
* Affect (philosophy)
* Affect heuristic
* Affection
* Affectionism
* Affective
* Affective forecasting
* Affine logic
* Affirmative action
* Affirmative conclusion from a negative premise
* Affirming a disjunct
* Affirming the antecedent
* Affirming the consequent
* African philosophy
* African Spir
* African Uplands
* Africana philosophy
* Africana womanism
* Afrikan Spir
* Afshin Ellian
* After Many a Summer
* After Virtue
* Afterlife
* Against Civilization: Readings and Reflections
* Against His-Story, Against Leviathan
* Against the Day
* Āgama (Buddhism)
* Āgama (Hinduism)
* Āgama (Jainism)
* Agama Hindu Dharma
* Agapē
* Agapē Agape
* Agapius of Athens
* Agathism
* Agathobulus
* Agathon
* Agathosthenes
* Agathusia and aschimothusia
* Age of Enlightenment
* Age of Reason
* Age of reason (canon law)
* Agency (philosophy)
* Agent (law)
* Agent Communications Language
* Aggadah
* Aggression
* Aggressionism
* Ágnes Heller
* Agnostic
* Agnostic atheism
* Agnostic existentialism
* Agnostic theism
* Agnosticism
* Agonism
* Agonistic liberalism
* Agonistic pluralism
* Agorism
* Agostinho da Silva
* Agostino Nifo
* Agrarianism
* Agricultural philosophy
* Agrippa the Skeptic
* Ahad Ha'am
* Ahamkāra
* Ahankara
* Ahimsa
* Ahimsa in Jainism
* Ahistoricism
* Ahl ar-ra'y
* Ahmad Ahmadi (philosopher)
* Ahmad Fardid
* Ahmad Ibn Muhammad Ibn Miskawayh
* Ahmad Nadeem Qasimi
* Ahmad Sirhindi
* Ahmed Hulusi
* Ahura Mazda
* AI effect
* Ai Siqi
* Aijaz Ahmad
* Aizawa Seishisai
* Ajahn Amaro
* Ajahn Chah
* Ajahn Sumedho
* Ajahn Sundara
* Ajita Kesakambali
* Ajivika
* AK Press
* Ākāśa
* Akeel Bilgrami
* Akira Asada
* Akira Yamada
* Akka Mahadevi
* Akrasia
* Al-Farabi
* Al-Fārābī
* Al-Ghazali
* Al-Ghazālī
* Al-Hajj Salim Suwari
* Al-Hilli
* Al-Jahiz
* Al-Jubba'i
* Al-Juwayni
* Al-Khazini
* Al-Khidr
* Al-Kindi
* Al-Kindī
* Al-Ma`arri
* Al-Mawardi
* Al-Nahda
* Al-Rāzī
* Al-Shahrastani
* Al-Shahrazuri
* Al-Shirazi
* Al-Sijistani
* Al-Tabarani
* Al-Tawhidi
* Al-Zamakhshari
* Al Amiri
* Alain Badiou
* Alain de Benoist
* Alain de Botton
* Alain de Lille
* Alain Etchegoyen
* Alain Finkielkraut
* Alain LeRoy Locke
* Alan Carter (philosopher)
* Alan Donagan
* Alan Gewirth
* Alan Grant (writer)
* Alan Mathison Turing
* Alan Millar
* Alan Moore
* Alan Musgrave
* Alan of Lynn
* Alan Ross Anderson
* Alan Ryan
* Alan Soble
* Alan Stout (philosopher)
* Alan Turing
* Alan Watts
* Alan Woods (politician)
* Alasdair C. MacIntyre
* Alasdair MacIntyre
* Alasdair Urquhart
* Alastair Hannay
* Alastair Norcross
* Ālaya-vijñāna
* Albert (short story)
* Albert Blumberg
* Albert Borgmann
* Albert Camus
* Albert Chernenko
* Albert Einstein
* Albert Lautman
* Albert Meltzer
* Albert of Saxony (philosopher)
* Albert Outler
* Albert Parsons
* Albert Rivaud
* Albert Schwegler
* Albert Schweitzer
* Albert Venn Dicey
* Alberto Jori
* Alberto Moreiras
* Alberto Toscano
* Albertus Magnus
* Albinus (philosopher)
* Albrecht Ritschl
* Albrecht von Müller
* Albrecht Wellmer
* Alchemy
* Alcinous (philosopher)
* Alciphron (book)
* Alcmaeon of Croton
* Alcuin
* Aldo Gargani
* Alejandro Deustua
* Alejandro Korn
* Alejandro Rossi
* Alejandro Rozitchner
* Aleksander Świętochowski
* Aleksandr Danilovich Aleksandrov
* Aleksandr Ivanovich Herzen
* Aleksandr Zinovyev
* Aleksei Losev
* Aleksey Khomyakov
* Alenka Zupančič
* Aleš Ušeničnik
* Alessandro Achillini
* Alessandro Piccolomini
* Aletheia
* Alethiology
* Alex Callinicos
* Alex Comfort
* Alex Grey
* Alexamenus of Teos
* Alexander Atabekian
* Alexander Bain
* Alexander Berkman
* Alexander Bogdanov
* Alexander Bonini
* Alexander Bryan Johnson
* Alexander Campbell Fraser
* Alexander Crombie
* Alexander Esenin-Volpin
* Alexander George (philosopher)
* Alexander Gerard
* Alexander Gottlieb Baumgarten
* Alexander Herzen
* Alexander Meiklejohn
* Alexander Neckam
* Alexander Neckham
* Alexander Nehamas
* Alexander of Aegae
* Alexander of Aphrodisias
* Alexander of Hales
* Alexander Pfänder
* Alexander Piatigorsky
* Alexander Rosenberg
* Alexander S. Kechris
* Alexander Schapiro
* Alexander Sutherland (educator)
* Alexander Tille
* Alexandr Ivanovich Herzen
* Alexandre Kojeve
* Alexandre Kojève
* Alexandre Koyré
* Alexandrian school
* Alexandros Schinas
* Alexandru Bogdan-Piteşti
* Alexandru Dragomir
* Alexicrates
* Alexinus
* Alexis de Tocqueville
* Alexis Kagame
* Alexis Rosenbaum
* Alexius Meinong
* Alf Ahlberg
* Alf Ross
* Alfonso Falero
* Alfred Adler
* Alfred Baeumler
* Alfred Binet
* Alfred Brunswig
* Alfred Edward Taylor
* Alfred Espinas
* Alfred Henry Lloyd
* Alfred Horn
* Alfred I. Tauber
* Alfred Jules Ayer
* Alfred Jules Émile Fouillée
* Alfred Kastil
* Alfred Loisy
* Alfred Mele
* Alfred North Whitehead
* Alfred of Sareshel
* Alfred Rosenberg
* Alfred Russel Wallace
* Alfred Schmidt (philosopher)
* Alfred Schutz
* Alfred Schütz
* Alfred Sohn-Rethel
* Alfred Tarski
* Alfred Wilm
* Alfredo M. Bonanno
* Algazel
* Algebra
* Algebraic normal form
* Algernon Charles Swinburne
* Algorithm
* Alhazen
* Alic Halford Smith
* Alice Ambrose
* Alice Bailey
* Alice von Hildebrand
* Alienation
* Alison Wylie
* All
* All About Love: New Visions
* All and Everything
* All horses are the same color
* All men are created equal
* All That Is Solid Melts into Air
* All Truth Is God's Truth
* Allan Antliff
* Allan Bloom
* Allan Gibbard
* Allan Gotthelf
* Allan Ramsay (1713-1784)
* Allegory of the cave
* Allegory of the Cave
* Allen Buchanan
* Alois Riehl
* Alon Ben-Meir
* Alonso Gutiérrez
* Alonzo Church
* Aloys Hirt
* Alpha et Omega
* Alphabet of human thought
* Alphonso Lingis
* Altered state of consciousness
* Alterity
* Alternative denial
* Alternative dispute resolution
* Alternative Media Project
* Alternative Press Review
* Altheides
* Altruism
* Alvin Goldman
* Alvin Plantinga
* Always already
* Ama-gi
* Amadeo Bordiga
* Amafinius
* Amakasu Incident
* Amalric of Bena
* Amartya K. Sen
* Amartya Sen
* Ambiguity
* Ambiguity effect
* Ambrose
* Ambrosius Theodosius Macrobius
* Amelius
* America at the Crossroads
* American Bar Association Model Code of Professional Responsibility
* American Bar Association Model Rules of Professional Conduct
* American Catholic Philosophical Association
* American Catholic Philosophical Quarterly
* American Craftsman
* American Empire (style)
* American Enlightenment
* American Indian Movement
* American Journal of Bioethics
* American Philosophical Association
* American Philosophical Quarterly
* American Philosophical Society
* American philosophy
* American realism
* American Society for Political and Legal Philosophy
* Amerika (novel)
* Amicus Plato, sed magis amica veritas
* Amilcar Cabral
* Amílcar Cabral
* Amilcare Cipriani
* Ammon Hennacy
* Ammonius Hermiae
* Ammonius of Alexandria (Christian philosopher)
* Ammonius of Athens
* Ammonius Saccas
* Amoralism
* Amorality
* Amos Bronson Alcott
* Amour-propre
* Amour de soi
* Amphibology
* Amphiboly
* Amsterdam Declaration
* Amy Gutmann
* Amynomachus
* An Enquiry concerning Human Understanding
* An Enquiry Concerning Human Understanding
* An Enquiry Concerning the Principles of Morals
* An Essay Concerning Human Understanding
* An Essay on the History of Civil Society
* An Essay on the Principle of Population
* An Honest Thief
* An Hyang
* An Intelligent Person's Guide to Atheism
* An Occurrence at Owl Creek Bridge
* An Sich
* Anacharsis
* Anāgāmi
* Analects
* Analects of Confucius
* Analogy
* Analogy of the divided line
* Analysis
* Analysis (journal)
* Analysis (philosophy)
* Analysis paralysis
* Analytic philosophy
* Analytic-synthetic distinction
* Analytic and synthetic knowledge
* Analytic and synthetic statements
* Analytic ethics
* Analytic hierarchy
* Analytic jurisprudence
* Analytic knowledge
* Analytic Marxism
* Analytic philosophy
* Analytic proof
* Analytic proposition
* Analytic reasoning
* Analytical hierarchy
* Analytical jurisprudence
* Analytical philosophy
* Analytical psychology
* Analytical Thomism
* Anamnesis (philosophy)
* Anamorphosis
* Anan ben David
* Ānanda
* Ananda Coomaraswamy
* Anandamaya kosha
* Anandavardhana
* Anangeon
* Ananke
* Anantarika-karma
* Anaphor
* Anaphora
* Anarch (sovereign individual)
* Anarcha-feminism
* Anarchism
* Anarchism and anarcho-capitalism
* Anarchism and animal rights
* Anarchism and capitalism
* Anarchism and Friedrich Nietzsche
* Anarchism and Islam
* Anarchism and Marxism
* Anarchism and nationalism
* Anarchism and the arts
* Anarchism and violence
* Anarchism in Africa
* Anarchism in America (film)
* Anarchism in Asia
* Anarchism in Australia
* Anarchism in Brazil
* Anarchism in Canada
* Anarchism in China
* Anarchism in Cuba
* Anarchism in England
* Anarchism in France
* Anarchism in Greece
* Anarchism in Iceland
* Anarchism in India
* Anarchism in Ireland
* Anarchism in Israel
* Anarchism in Italy
* Anarchism in Japan
* Anarchism in Korea
* Anarchism in Mexico
* Anarchism in Poland
* Anarchism in Russia
* Anarchism in Spain
* Anarchism in Sweden
* Anarchism in the United States
* Anarchism in Turkey
* Anarchism in Ukraine
* Anarchism in Vietnam
* Anarchism without adjectives
* Anarchism: A Documentary History of Libertarian Ideas
* Anarchist Black Cross
* Anarchist Black Cross Federation
* Anarchist Black Cross Network
* Anarchist Bookfair
* Anarchist Catalonia
* Anarchist communism
* Anarchist Exclusion Act
* Anarchist Federation (Britain and Ireland)
* Anarchist law
* Anarchist Manifesto
* Anarchist People of Color
* Anarchist schools of thought
* Anarchist St. Imier International
* Anarchist Studies
* Anarchist symbolism
* Anarchist terminology
* Anarchistic free school
* Anarchists (film)
* Anarchists Against the Wall
* Anarcho-capitalism
* Anarcho-capitalism and minarchism
* Anarcho-capitalist literature
* Anarcho-capitalist symbolism
* Anarcho-pacifism
* Anarcho-primitivism
* Anarcho-punk
* Anarcho-syndicalism
* Anarcho-Syndicalism (book)
* Anarcho-Syndicalist Review
* Anarcho-syndicalist symbolism
* Anarchy
* Anarchy (book)
* Anarchy Alive!
* Anarchy Archives
* Anarchy Comics
* Anarchy in the Age of Dinosaurs
* Anarchy Magazine
* Anarchy, State, and Utopia
* Anarchy: A Journal of Desire Armed
* Anarky
* Anarky (comic book)
* Anat Biletzki
* Anathon Aall
* Anatoly Lunacharsky
* Anatta
* Anava
* Anaxagoras
* Anaxarchus
* Anaxilaus
* Anaximander
* Anaximenes of Miletus
* Ancestral
* Ancestral relation
* Anchoring
* Ancient commentators project
* Ancient Greek philosophy
* Ancient philosophy
* Ancient skepticism
* Ancient Wisdom, Modern World
* And you are lynching Negroes
* Anders Chydenius
* Anders Nygren
* Anders Vilhelm Lundstedt
* Ando Shoeki
* André-François Deslandes
* André-Marie Ampère
* André Comte-Sponville
* André Glucksmann
* André Gorz
* André Malet (philosopher)
* André Malraux
* André of Neufchâteau
* Andrea Bonomi
* Andrea Cesalpino
* Andreas Kinneging
* Andreas Speiser
* Andrei Andreevich Markov
* Andrei Marga
* Andrej Grubacic
* Andres Luure
* Andrés Ortiz-Osés
* Andrew Baxter
* Andrew Bernstein (philosopher)
* Andrew Feenberg
* Andrew Janiak
* Andrew of Cornwall
* Andrew Pyle (philosopher)
* Andrew Seth Pringle-Pattison
* Andries Mac Leod
* Androcentrism
* Androcydes (Pythagorean)
* Android epistemology
* Andronicus of Rhodes
* Andrzej Mostowski
* Andrzej Towiański
* Andy Blunden
* Andy Clark
* Andy Warhol
* Anekantavada
* Ángel Rama
* Angelaki
* Angeli (novel)
* Angelo Galli
* Anger
* Angie Hobbs
* Anglo-Japanese style
* Angst
* Anguish
* Angus Taylor (philosopher)
* Anima mundi
* Anima mundi (spirit)
* Animal consciousness
* Animal Experimentation: Opposing Viewpoints
* Animal language
* Animal Liberation (book)
* Animal rights
* Animal spirits
* Animals in Buddhism
* Animistic fallacy
* Anioł Dowgird
* Anja Steinbauer
* Anna-Teresa Tymieniecka
* Anna Maria van Schurman
* Anne Conway, Viscountess Conway
* Anne Finch
* Anne Louise Germaine de Staël
* Annemarie Gethmann-Siefert
* Annemarie Mol
* Annette Baier
* Anniceris
* Anomalous monism
* Anomie
* Ansatz
* Anselm Jappe
* Anselm of Canterbury
* Anselm of Laon
* Anselme Bellegarrigue
* Ansgar Beckermann
* Answer to Job
* Answering the Question: What Is Enlightenment?
* Antahkarana
* Antanas Maceina
* Antecedent (logic)
* Antenor Orrego
* Anteo Zamboni
* Antepredicament
* Anthem (novella)
* Anthony Ashley-Cooper, 3rd Earl of Shaftesbury
* Anthony Collins
* Anthony Gottlieb
* Anthony John Patrick Kenny
* Anthony Kenny
* Anthony O'Hear
* Anthony of the Mother of God
* Anthony Quinton
* Anthony Quinton, Baron Quinton
* Anthony Rayson
* Anthony Thiselton
* Anthropic principle
* Anthropocentrism
* Anthropopath
* Anthropopathy
* Anthroposophy
* Anti-art
* Anti-authoritarianism
* Anti-clericalism
* Anti-communism
* Anti-consumerism
* Anti-Dühring
* Anti-environmentalism
* Anti-foundationalism
* Anti-Germans (communist current)
* Anti-modernization
* Anti-Œdipus
* Anti-psychiatry
* Anti-psychologism
* Anti-racist mathematics
* Anti-realism
* Anti-Revisionism
* Anti-Semite and Jew
* Anti-Semitism
* Anti-State Justice
* Anti-statism
* Anti-Supernaturalism
* Anti-systemic library
* Anti-voting
* Anti-work
* Anticonformism
* Antigone (Sophocles)
* Antihumanism
* Antimilitarism
* Antinatalism
* Antinomianism
* Antinomies
* Antinomy
* Antiochus Kantemir
* Antiochus of Ascalon
* Antipater
* Antipater of Cyrene
* Antipater of Tarsus
* Antipater of Tyre
* Antiperistasis
* Antiphon
* Antiphon (person)
* Antireductionism
* Antireligion
* Antiscience
* Antisthenes
* Antitheism
* Antithesis
* Antoine-Augustin Cournot
* Antoine Arnauld
* Antoine Augustin Cournot
* Antoine Destutt de Tracy
* Antoine Lavoisier
* Antoine Le Grand
* Anton Ambschel
* Anton Günther
* Anton Kržan
* Anton LaVey
* Anton Wilhelm Amo
* Antonin Sertillanges
* Antoninus (philosopher)
* Antonio Beccadelli
* Antonio Caso Andrade
* António Castanheira Neves
* Antonio Comellas y Cluet
* Antonio Cua
* António Damásio
* Antonio Genovesi
* Antonio Gramsci
* Antonio Labriola
* Antonio Negri
* Antonio Rosmini
* Antonio Rosmini-Serbati
* Antonio Téllez
* Antony Flew
* Antwerp school
* Anuario Filosófico
* Aous Shakra
* Apagoge
* Aparoksanubhuti
* Aparokshanubhuti
* Apatheia
* Apatheism
* Apeiron (cosmology)
* Aphorism
* Apocalypticism
* Apocatastasis
* Apodictic
* Apodicticity
* Apodosis
* Apollodorus of Seleucia
* Apollodorus the Epicurean
* Apollonian and Dionysian
* Apollonius Cronus
* Apollonius of Tyana
* Apollonius of Tyre (philosopher)
* Apologetics
* Apologism
* Apology (Plato)
* Apology (Xenophon)
* Apology of Aristides
* Aponia
* Apophasis
* Apophatic theology
* Apophenia
* Aporetic
* Aporia
* Aporime
* Aposteriori
* Appeal to advantage
* Appeal to authority
* Appeal to belief
* Appeal to consequences
* Appeal to emotion
* Appeal to fear
* Appeal to flattery
* Appeal to motive
* Appeal to nature
* Appeal to novelty
* Appeal to pity
* Appeal to probability
* Appeal to ridicule
* Appeal to spite
* Appeal to tradition
* Appellation
* Apperception
* Appiano Buonafede
* Applicative Universal Grammar
* Applied aesthetics
* Applied art
* Applied ethics
* Applied ontology
* Applied philosophy
* Apportionment paradox
* Approximation
* Aptitude
* Apuleius
* Arab transmission of the Classics to the West
* Arabic philosophy
* Arabic Sciences and Philosophy
* Aramesh Doustdar
* Arbeter Fraynd
* Arbitrariness
* Arbitration
* Arborescent
* Arcadia (play)
* Arcesilaus
* Archaeological ethics
* Arche
* Archē
* Archedemus of Tarsus
* Archeio-Marxism
* Archelaus (philosopher)
* Archetype
* Archibald Alison (author)
* Archibald Campbell (philosopher)
* Archie J. Bahm
* Archimedes
* Architectonic
* Archive Fever
* Archytas
* Arda Denkel
* Areopagitica
* Aretaic
* Aretaic turn
* Arete (moral virtue)
* Arete of Cyrene
* Aretology
* Argentine Libertarian Federation
* Argentine Regional Workers' Federation
* Argument
* Argument form
* Argument from authority
* Argument from beauty
* Argument from consciousness
* Argument from degree
* Argument from design
* Argument from desire
* Argument from evil
* Argument from fallacy
* Argument from free will
* Argument from ignorance
* Argument from illusion
* Argument from inconsistent revelations
* Argument from love
* Argument from marginal cases
* Argument from miracles
* Argument from morality
* Argument from nonbelief
* Argument from poor design
* Argument from queerness
* Argument from Reason
* Argument from religious experience
* Argument from silence
* Argument in the alternative
* Argument map
* Argument to moderation
* Argumentation theory
* Arguments for eternity
* Arguments for the existence of God
* Argumentum ad baculum
* Argumentum ad crumenam
* Argumentum ad hominem
* Argumentum ad ignorantium
* Argumentum ad lapidem
* Argumentum ad lazarum
* Argumentum ad misericordiam
* Argumentum ad numerum
* Argumentum ad populum
* Argumentum ad verecundiam
* Arhat
* Ariadne's thread (logic)
* Arianism
* Ariel Salleh
* Arignote
* Arimneste
* Arindam Chakrabarti
* Aristides of Athens
* Aristion
* Aristippus
* Aristippus the Younger
* Aristo of Alexandria
* Aristo of Ceos
* Aristo of Chios
* Aristobulus of Paneas
* Aristoclea
* Aristocles of Messene
* Aristocracy
* Aristocreon
* Aristonymus
* Aristotelian ethics
* Aristotelian logic
* Aristotelian physics
* Aristotelian rhetoric
* Aristotelian Society
* Aristotelian Society for the Systematic Study of Philosophy
* Aristotelian theory of gravity
* Aristotelian view of a god
* Aristotelian view of God
* Aristotelianism
* Aristotle
* Aristotle's Masterpiece
* Aristotle's theory of universals
* Aristotle's views on women
* Aristotle's wheel paradox
* Aristotle for Everybody
* Aristoxenus
* Arithmetic
* Arithmetic hierarchy
* Arithmetization of analysis
* Arity
* Arius
* Arius Didymus
* Arkhē
* Armand Robin
* Armchair revolutionary
* Armin Mohler
* Arminianism
* Arne Johan Vetlesen
* Arne Naess
* Arne Næss
* Arno Ros
* Arnold Davidson
* Arnold Gehlen
* Arnold Geulincx
* Arnold Ruge
* Arnold J. Toynbee
* Arnouphis
* Aron Gurwitsch
* Arrian
* Arrow's impossibility theorem
* Arrow's paradox
* Arrow's theorem
* Arrow of time
* Arrow paradox
* Ars inveniendi
* Ars Poetica (Horace)
* Art
* Art and morality
* Art as Experience
* Art criticism
* Art Deco in Durban
* Art for art's sake
* Art forgery
* Art manifesto
* Art movement
* Art periods
* Arte Povera
* Artforum
* Arthur Balfour
* Arthur C. Danto
* Arthur Coleman Danto
* Arthur Collier
* Arthur Danto
* Arthur de Gobineau
* Arthur Drews
* Arthur F. Holmes
* Arthur Fine
* Arthur Koestler
* Arthur Lehning
* Arthur Linton Corbin
* Arthur Lipsett
* Arthur M. Young
* Arthur Moeller van den Bruck
* Arthur Norman Prior
* Arthur Oncken Lovejoy
* Arthur Pap
* Arthur Prior
* Arthur Schafer
* Arthur Schopenhauer
* Arthur Schopenhauer's aesthetics
* Arthur Stanley Eddington
* Arthur Willink
* Artificial brain
* Artificial consciousness
* Artificial intelligence
* Artificial language
* Artificial life
* Artist
* Artistic expression
* Artistic freedom
* Artistic inspiration
* Artistic interpretation
* Artistic merit
* Artistic revolution
* Artistic style
* Arto Haapala
* Arts and Crafts Movement
* Arts criticism
* Arturo Andrés Roig
* Artworld
* Arvi Grotenfelt
* Arya
* Arya Samaj
* Aryadeva
* As a Man Thinketh
* As I Lay Dying (novel)
* As I was going to St Ives
* As if
* As She Climbed Across the Table
* Asa Gray
* Asa Kasher
* Asanga
* Asceticism
* Asclepiades of Phlius
* Asclepiades the Cynic
* Asclepigenia
* Asclepiodotus (philosopher)
* Asclepiodotus of Alexandria
* Asclepius of Tralles
* Ascribed status
* Ascriptivism
* Aseity
* Ashanti Alston
* Ashcan School
* Asher Ginzberg
* Ashley Treatment
* Ashtamangala
* Asian values
* Asiatic mode of production
* Askapāda Gotama
* Asociación Continental Americana de Trabajadores
* Aspasius
* Assertion
* Assertoric
* Assi Rahbani
* Assisted suicide
* Association fallacy
* Association for Logic, Language and Information
* Association for Symbolic Logic
* Association for the Scientific Study of Consciousness
* Association of Autonomous Astronauts
* Association of ideas
* Associationism
* Associative law
* Āstika and nāstika
* Astrology
* Aśvaghoṣa
* Asymmetrical
* Ataraxia
* Ateneo de la Juventud
* Athanasius of Alexandria
* Atheism
* Atheist's Wager
* Atheist existentialism
* Athenaeus of Seleucia
* Athenian democracy
* Athenodoros Cananites
* Athenodoros Cordylion
* Athenodorus of Soli
* Athens
* Athīr al-Dīn al-Abharī
* Atisha
* Atlantis
* Atlas Shrugged
* Atman (Buddhism)
* Ātman (Buddhism)
* Atman (Hinduism)
* Atomic fact
* Atomic sentence
* Atomism
* Atonement in Christianity
* Atonement in Judaism
* Atopy (philosophy)
* Atrocity story
* Attacking Faulty Reasoning
* Attalus (Stoic)
* Attempt at a Critique of All Revelation
* Attentional bias
* Atticus (philosopher)
* Attitude (psychology)
* Attitude polarization
* Attorney–client privilege
* Attorney misconduct
* Attorney/client privilege
* Attribute grammar
* Attribution theory
* Attributional bias
* Auberon Herbert
* Auctoritas
* Auctoritates Aristotelis
* Aufheben
* Augmented Backus–Naur form
* Augoeides
* August Cieszkowski
* August Wilhelm Schlegel
* Auguste Comte
* Auguste Vaillant
* Augustin Bonnetty
* Augustin Souchy
* Augustine Eriugena
* Augustine of Hippo
* Augustinian Studies
* Augustinian values
* Augusto César Sandino
* Augusto Vera
* Augustus De Morgan
* Aulus Egnatius Priscillianus
* Aulus Gellius
* Aurel Kolnai
* Austin Farrer
* Austin Marsden Farrer
* Austin Woodbury
* Australasian Association of Philosophy
* Australasian Journal of Philosophy
* Australian materialism
* Australian realism
* Austrofascism
* Autarchism
* Authenticity (philosophy)
* Authoritarianism
* Authority
* Auto-destructive art
* Autocracy
* Autoepistemic logic
* Autological
* Automata theory
* Automated reasoning
* Automatic sequence
* Automaton
* Autonomedia
* Autonomism
* Autonomous Action
* Autonomy
* Autopoiesis
* Avadhuta Gita
* Availability heuristic
* Avant-garde
* Avant-Garde and Kitsch
* Avatar
* Avecebrol
* Avempace
* Average and total utilitarianism
* Averaging argument
* Averroes
* Averroës
* Averroism
* Aversion therapy
* Avicebrol
* Avicebron
* Avicenna
* Avicenna Prize
* Avicennism
* Avidya (Hinduism)
* Avidyā (Buddhism)
* Avishai Margalit
* Avital Ronell
* Avodah
* Avraham son of Rambam
* Avrum Stroll
* Awareness
* Awareness League
* Axel Hägerström
* Axel Honneth
* Axial Age
* Axiochus (dialogue)
* Axiology
* Axiom
* Axiom of abstraction
* Axiom of choice
* Axiom of comprehension
* Axiom of Equity
* Axiom of extensionality
* Axiom of infinity
* Axiom of projective determinacy
* Axiom of reducibility
* Axiom of replacement
* Axiom of separation
* Axiom S5
* Axiom schema
* Axiomatic method
* Axiomatic set theory
* Axiomatic system
* Axiomatization
* Axiothea of Phlius
* Ayatana
* Ayn al-Quzat Hamadani
* Ayn Rand
* Ayn Rand: A Sense of Life
* Ayn Rand: The Russian Radical
* Ayurveda
* Ayyavazhi
* Ayyavazhi phenomenology
* Azizah Y. al-Hibri
* Aztec philosophy

## B

* B-series
* B-Theory of time
* B. F. Skinner
* B. R. Ambedkar
* B. Traven
* Babette Babich
* Baby K
* Backgammon
* Backus–Naur form
* Backward causation
* Backward chaining
* Bad faith
* Bad faith (existentialism)
* Baden School
* Bahmanyār
* Bahshamiyya
* Bahya ibn Paquda
* Baker Brownell
* Balance (metaphysics)
* Balance of nature
* Balangoda Ananda Maitreya
* Baltasar Gracián
* Balthasar Bekker
* Banality of evil
* Banausos
* Bandwagon effect
* Bantu Philosophy
* Baptista Mantuanus
* Baptists in the history of separation of church and state
* Barba non facit philosophum
* Barbara
* Barbara Forrest
* Barbara Herrnstein Smith
* Barber paradox
* Barbershop paradox
* Barbizon school
* Barcan formula
* Barcelona May Days
* Bardo
* Bare particular
* Bargaining theory
* Barhaspatya sutras
* Barlaam of Seminara
* Baron d'Holbach
* Baron de Montesquieu
* Baron Herbert of Cherbury
* Baroque
* Baroque Revival architecture
* Barracks communism
* Barrie Karp
* Barrows Dunham
* Barry Loewer
* Barry Smith (ontologist)
* Barry Stroud
* Bartholomäus Keckermann
* Bartholomew Des Bosses
* Bartholomew Keckermann
* Bartholomew of Bologna (philosopher)
* Bartolomé de Medina
* Bartolommeo Spina
* Bartolus de Saxoferrato
* Baruch Spinoza
* Barwise prize
* Barzillai Quaife
* Bas C. van Fraassen
* Bas Haring
* Bas van Fraassen
* Base and superstructure
* Base and superstructure (Marxism)
* Base rate fallacy
* Basic belief
* Basic Limiting Principle
* Basic norm
* Basic Points Unifying the Theravāda and the Mahāyāna
* Basil Mitchell (academic)
* Basilides
* Basilides (Stoic)
* Basilides the Epicurean
* Basilios Bessarion
* Batis of Lampsacus
* Batman: Anarky
* Battle of Peregonovka (1919)
* Bauhaus
* Bay Area Figurative Movement
* Bayes' theorem
* Bayes's rule
* Bayes's theorem
* Bayesian probability
* Bayesianism
* Beatific vision
* Béatrice Longuenesse
* Beatriz Sarlo
* Beauty
* Becoming
* Becoming (philosophy)
* Bedeutung
* Beelzebub's Tales to His Grandson
* Beerwolf
* Begging the question
* Begriffsschrift
* Behavior therapy
* Behavioral script
* Behavioralism
* Behaviorism
* Behaviourism
* Behind the Mirror: A Search for a Natural History of Human Knowledge
* Behold a Pale Horse (film)
* Being
* Being and becoming
* Being and Nothingness
* Being and Time
* Being for itself
* Being in itself
* Béla Balázs
* Béla Hamvas
* Belief
* Belief-Desire-Intention model
* Belief-in
* Belief bias
* Belief in
* Belief revision
* Bell's inequality
* Bell's theorem
* Bellum omnium contra omnes
* Belmont Report
* Ben Salem Himmich
* Benedetto Croce
* Benedict de Spinoza
* Benedict Pereira
* Benedictus Spinoza
* Benedito Nunes
* Beneficence
* Benjamin Apthorp Gould Fuller
* Benjamin Constant
* Benjamin Franklin
* Benjamin Lee (academic)
* Benjamin Paul Blood
* Benjamin Peirce
* Benjamin Tucker
* Benjamin Whichcote
* Benny Lévy
* Benoît Broutchoux
* Benoît de Maillet
* Benson Mates
* Berlin Circle
* Bernard-Henri Lévy
* Bernard A. O. Williams
* Bernard Arthur Owen Williams
* Bernard Bolzano
* Bernard Bosanquet (philosopher)
* Bernard d'Espagnat
* Bernard de Fontenelle
* Bernard Delfgaauw
* Bernard Gert
* Bernard le Bovier de Fontenelle
* Bernard Le Bovier de Fontenelle
* Bernard Lonergan
* Bernard Mandeville
* Bernard Mayo
* Bernard Narokobi
* Bernard Nieuwentyt
* Bernard of Chartres
* Bernard of Clairvaux
* Bernard of Trilia
* Bernard Philip Kelly
* Bernard Rollin
* Bernard Silvestris
* Bernard Stiegler
* Bernard Williams
* Bernard Yack
* Bernardino Telesio
* Bernardino Varisco
* Bernhard Riemann
* Bernoulli's principle
* Bernoulli's theorem
* Berry's paradox
* Bert Mosselmans
* Berthold of Moosburg
* Berthold Wulf
* Bertil Mårtensson
* Bertrand paradox (economics)
* Bertrand paradox (probability)
* Bertrand's box paradox
* Bertrand Arthur William Russell
* Bertrand de Jouvenel
* Bertrand Russell
* Bertrand Russell's views on philosophy
* Bertrand Russell's views on society
* Best of all possible worlds
* Bête machine
* Betrayal
* Between Facts and Norms
* Between Heaven and Hell (novel)
* Between Past and Future
* Beuron Art School
* Beyond Belief: Science, Religion, Reason and Survival
* Beyond Freedom and Dignity
* Beyond Good and Evil
* Beyond the Pleasure Principle
* Bhagavad Gita
* Bhakti
* Bhartrhari
* Bhava
* Bhavanga
* Bhāvaviveka
* Bhedabheda
* Bhikhu Parekh, Baron Parekh
* Bhumi (Buddhism)
* Bias
* Bias blind spot
* Bible
* Biblical literalism
* Bibliography for Ayn Rand and Objectivism
* Biconditional
* Biconditional elimination
* Biconditional introduction
* Biennio rosso
* Big Book (thought experiment)
* Bigram
* Bill Martin (philosophy)
* Bilocation
* Binary opposition
* Biocentric universe
* Biocentrism (ethics)
* Biodefense
* Bioethics
* Bioethics (journal)
* Biofact (philosophy)
* Biofacticity
* Biographia Literaria
* Biographical fallacy
* Biological determinism
* Biological naturalism
* Biological warfare
* Biomedical tissue
* Bion of Borysthenes
* Biopolitics
* Biopower
* Biosafety
* Biosecurity
* Biosophy
* Biotic Baking Brigade
* Bisexuality
* Bite the bullet
* Bivalence
* Bjarni Jónsson
* Bl(A)ck Tea Society
* Black-Body Theory and the Quantum Discontinuity
* Black anarchism
* Black Artists Group
* Black Arts Movement
* Black bloc
* Black box
* Black box theory
* Black existentialism
* Black Flag (newspaper)
* Black Laundry
* Black Mask (anarchists)
* Black Panther Party
* Black Sotnia
* Black Star (anarchist group)
* Black swan theory
* Blackbird Raum
* Blackwell Companion to Philosophy
* Blaise Pascal
* Blame
* Blanquism
* Bleen
* Blindsight
* Blockhead (thought experiment)
* Blossius
* Bluestocking (journal)
* Bluestockings (bookstore)
* Blyenbergh
* Boasting
* Boatmen of Thessaloníki
* Bob Black
* Bob Hale (philosopher)
* Bodhi
* Bodhimandala
* Bodhisattva Precepts
* Bodhisena
* Body donation
* Body of Knowledge
* Body politic
* Body without organs
* Bodymind
* Boethius
* Boethus of Sidon (Peripatetic)
* Boethus of Sidon (Stoic)
* Boetius of Dacia
* Bohm interpretation
* Bohr–Einstein debates
* Bolam v Friern Hospital Management Committee
* Bolshevik
* Bolus of Mendes
* Bonapartism (Marxism)
* Bonaventure
* Boncompagno da Signa
* Bonifaty Kedrov
* Bonini's paradox
* Bonnie Honig
* Bonnie Steinbock
* Bonnot Gang
* Book of Causes
* Book of Changes
* Book of Life
* Boolean algebra (logic)
* Boolean grammar
* Bootstrapping
* Borden Parker Bowne
* Boredom
* Boris Chicherin
* Boris Furlan
* Boris Grushin
* Boris Hessen
* Borussian myth
* Bound variable
* Bourgeois
* Bourgeois socialism
* Bourgeoisie
* Bowling Green Studies in Applied Philosophy
* Boyd Henry Bode
* Boyle Lectures
* Bracha L. Ettinger
* Bracketing (phenomenology)
* Bracketing paradox
* Brad Hooker
* Brahma
* Brahmacharya
* Brahman
* Brahmavihara
* Brahmin
* Brahmo Samaj
* Brain
* Brain-in-a-vat theory
* Brain event
* Brain in a vat
* Brainstorm machine
* Brainstorms
* Brand Blanshard
* Brandon Darby
* Branko Bošnjak
* Brazilian Workers Confederation
* Breaking the Spell (film)
* Breaking the Spell: Religion as a Natural Phenomenon
* Brethren of Purity
* Brian Barry
* Brian Boyd
* Brian David Ellis
* Brian Davies (philosopher)
* Brian Klug
* Brian Leftow
* Brian Leiter
* Brian MacKenzie Infoshop
* Brian Massumi
* Brian O'Shaughnessy (philosopher)
* Brian Orend
* Brian Skyrms
* Brian Weatherson
* Bridge ethics
* Brie Gertler
* Brights movement
* British Empiricists
* British Humanist Association
* British idealism
* British Idealism
* British Journal of Aesthetics
* British Philosophical Association
* British philosophy
* Broadway Barks
* Bronisław Trentowski
* Bronius Kuzmickas
* Brontinus
* Brother Wolf
* Brownie points
* Bruce Lee
* Bruce Weinstein
* Bruce Wilshire
* Brunetto Latini
* Bruno Bauch
* Bruno Bauer
* Bruno de Finetti
* Bruno Leoni
* Brute fact
* Bryan Caplan
* Bryan Magee
* Bryson of Achaea
* Bryson of Heraclea
* Buchmanism
* Budaya
* Buddha-nature
* Buddhaghosa
* Buddhahood
* Buddhapālita
* Buddhism
* Buddhism and evolution
* Buddhist anarchism
* Buddhist ethics
* Buddhist philosophy
* Buddhist schools
* Buddhist view of marriage
* Buenaventura Durruti
* Bullshit
* Bulverism
* Bunched logic
* Bundle theory
* Bundle theory of the self
* Burali-Forte paradox
* Burali-Forti's paradox
* Burchard de Volder
* Burden of proof (logical fallacy)
* Bureaucracy
* Bureaucratic collectivism
* Burghart Schmidt
* Buridan's ass
* Burleigh Taylor Wilkins
* Burrhus Frederic Skinner
* Burton Dreben
* Business ethics
* Buttered cat paradox
* By any means necessary
* Byzantine philosophy
* Byzantine rhetoric
* Byzantinism

## C

* C. Anthony Anderson
* C. D. Broad
* C. E. M. Joad
* C. I. Lewis
* C. Lloyd Morgan
* C. S. Lewis
* C. S. Lewis bibliography
* C. Stephen Evans
* C. T. K. Chari
* C. A. J. Coady
* Cabbala
* Café Philosophique
* Cahal Daly
* Cai Yuanpei
* Caigentan
* Cairo Declaration on Human Rights in Islam
* Cajetan
* Calcidius
* Calculus
* Calculus of structures
* Calculus ratiocinator
* Calippus of Syracuse
* Callicles
* Calliphon
* Calliphon of Croton
* Callippus
* Callistratus (sophist)
* Calvin Normore
* Calvin Seerveld
* Calvinism
* Camas Bookstore and Infoshop
* Cambridge change
* Cambridge Philosophical Society
* Cambridge Platonism
* Cambridge Platonists
* Camera del Lavoro
* Camera obscura
* Camilo Cienfuegos
* Camp (style)
* Canadian Journal of Philosophy
* Canadian Society for History and Philosophy of Mathematics
* Candace Vogler
* Candide
* Candrakīrti
* Canonical form (Boolean algebra)
* Cantor's paradox
* Cantor's theorem
* Capacity
* Capital accumulation
* Capital punishment
* Capital, Volume I
* Capitalism
* Capitalism: The Unknown Ideal
* Capitalist mode of production
* Capitalist realism
* Cappadocian Fathers
* Carceral state
* Cardinal Mercier Prize for International Philosophy
* Cardinal utility
* Cardinal virtues
* Cardinality
* Care
* Care Not Killing
* Carew Arthur Meredith
* Cargo cult science
* Carl Cohen
* Carl Dahlhaus
* Carl Elliott (philosopher)
* Carl Friedrich Gauss
* Carl Friedrich von Weizsäcker
* Carl G. Hempel
* Carl Ginet
* Carl Gustav Carus
* Carl Gustav Hempel
* Carl Gustav Jung
* Carl Hempel
* Carl Joachim Friedrich
* Carl Jung
* Carl Linnaeus
* Carl Mitcham
* Carl Schmitt
* Carl Stumpf
* Carl von Linnaeus
* Carlo Cattaneo
* Carlo Lottieri
* Carlo Michelstaedter
* Carlo Penco
* Carlo Rosselli
* Carlo Tresca
* Carlos Bernardo González Pecotche
* Carlos Brandt
* Carlos Castrodeza
* Carlos Castaneda
* Carlos Cirne Lima
* Carlos Santiago Nino
* Carlos Vaz Ferreira
* Carmen Laforet
* Ramsey sentence
* Carneades
* Carneiscus
* Carol Gilligan
* Caroline Joan S. Picart
* Carolingian Renaissance
* Carolus Sigonius
* Carolyn Merchant
* Carsun Chang
* Cartesian anxiety
* Cartesian circle
* Cartesian demon
* Cartesian doubt
* Cartesian dualism
* Cartesian materialism
* Cartesian Meditations
* Cartesian Other
* Cartesian product
* Cartesian Self
* Cartesian skepticism
* Cartesian theater
* Cartesianism
* Cārvāka
* Carveth Read
* Case-based reasoning
* Casimir Lewy
* Caspar Isenkrahe
* Cassius Longinus (philosopher)
* Casuistry
* Cat's Cradle
* Catch-22 (logic)
* Catechism of a Revolutionary
* Categoriae decem
* Categorical
* Categorical imperative
* Categorical logic
* Categorical proposition
* Categorical theory
* Categoricity
* Categories (Aristotle)
* Categories (Peirce)
* Categories of the understanding
* Categorization
* Category (Kant)
* Category (philosophy)
* Category mistake
* Category of being
* Category theory
* Catharine Macaulay
* Catharsis
* Catherine Clément
* Catherine Elgin
* Catherine Malabou
* Catherine of Siena
* Catherine Perret
* Catherine Trotter
* Catherine Trotter Cockburn
* Catholic guilt
* Catholic Probabilism
* Catius
* Cato Maior de Senectute
* Cato the Elder
* Cato the Younger
* Catonism
* Causa sui
* Causal-historical theory of reference
* Causal adequacy principle
* Causal chain
* Causal closure
* Causal decision theory
* Causal determinism
* Causal diagram
* Causal Markov condition
* Causal relation
* Causal theory of proper names
* Causal theory of reference
* Causalism
* Causality
* Causality loop
* Causation (law)
* Causative verb
* Cause
* Cavalcante de' Cavalcanti
* Cebes
* Celestial spheres
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* Celia Green
* Celine's laws
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* Celsus
* Cemal Yildirim
* Center Leo Apostel for Interdisciplinary Studies
* Centered world
* Centre de recherche et de documentation sur Hegel
* Centre for Applied Ethics
* Centre for Applied Philosophy and Public Ethics (CAPPE)
* Centre for History and Philosophy of Science, University of Leeds
* Cercidas
* Cercops
* Certainty
* César Chesneau Dumarsais
* César Dávila Andrade
* Cesare Beccaria
* Cesare Cremonini (philosopher)
* Ceteris paribus
* CH
* Ch'i
* Ch'ien Mu
* Chaeremon of Alexandria
* Chaerephon
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* Chaïm Perelman
* Chain of events
* Chaldean Oracles
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* Chanakya
* Chance (Ancient Greek concept)
* Chandragomin
* Change
* Chantal Maillard
* Chao Cuo
* Chaos
* Chaos theory
* Chaotic system
* Character Strengths and Virtues (book)
* Character structure
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* Characteristica universalis
* Chariot Allegory
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* Charity (practice)
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* Charity International
* Charles A. Moore
* Charles Babbage
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* Charles Blount (deist)
* Charles Bonnet
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* Charles Carroll Everett
* Charles Darwin
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* Charles Fourier
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* Charles Frankel
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* Charles Louis de Secondat, Baron de Montesquieu
* Charles Lutwidge Dodgson
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* Charles Parsons (philosopher)
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* Charles Sanders Peirce
* Charles Sanders Peirce bibliography
* Charles Secrétan
* Charles Stevenson
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* Charles Waddington (philosopher)
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* Chauncey Wright
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* Chemism
* Chen Chung-hwan
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* Cheng Hao
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* Cherry picking (fallacy)
* Cheung Kam Ching
* Chia I
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* Chicago school (mathematical analysis)
* Chicken or the egg
* Chih
* Chih-I
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* Choice
* Choice-supportive bias
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* Choosing
* Chora
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* Chrematistics
* Chris Bobonich
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* Christos Yannaras
* Chronocentrism
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* Chung-yung
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* Clairvoyance
* Clare W. Graves
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* Clarence Irving Lewis
* Clarity of scripture
* Clarity test
* Class (philosophy)
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* Classical Realism
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* Classical theism
* Classicism
* Classics
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* Claude Adrien Helvétius
* Claude Buffier
* Claude Henri de Rouvroy, comte de Saint-Simon
* Claude Lefort
* Claude Lévi-Strauss
* Claude Lévi-Strauss
* Claude Tresmontant
* Claudio Canaparo
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* Claudius Maximus
* Claus Emmeche
* Clause (logic)
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* Clémence Royer
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* Clemens Timpler
* Clement Greenberg
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* Clément Rosset
* Cleobulus
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* Cleomenes the Cynic
* Clerical fascism
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* Clericalism
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* Clifford Williams (academic)
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* Clinomachus
* Clitomachus (philosopher)
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* Clive Staples Lewis
* CLODO
* Cloning
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* Cloudesley
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* Coase theorem
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* Cogency
* Cogito (magazine)
* Cogito ergo sum
* Cognition
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* Cognitive liberty
* Cognitive map
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* Cognitive ontology
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* Cognitive relativism
* Cognitive revolution
* Cognitive science
* Cognitive science of mathematics
* Cognitive synonymy
* Cognitivism (ethics)
* Coherence (philosophical gambling strategy)
* Coherence theory of truth
* Coherentism
* Coimbra commentaries
* Coimbra group
* Cointerpretability
* Colin Howson
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* Colin Murray Turbayne
* Colin Wilson
* Collapse (journal)
* Collapse theories (quantum mechanics)
* Collective belief
* Collective memory
* Collective responsibility
* Collective unconscious
* Collectivism and individualism
* Collectivist anarchism
* Collectivity
* Collège international de philosophie
* Collegium Conimbricense
* Colloque Walter Lippmann
* Colloquial language
* Color
* Color Field
* Color realism (philosophy)
* Colotes
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* Combinatory logic
* Comedy
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* Comité Consultatif National d'Ethique
* Commensurability (ethics)
* Commensurability (philosophy of science)
* Commentaria in Aristotelem Graeca
* Commentaries on Aristotle
* Commentaries on Plato
* Commission of Anarchist Relations
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* Commodification
* Commodity (Marxism)
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* Common sense and the Diallelus
* Common sense reasoning
* Commonsense reasoning
* Communication
* Communication theory
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* Communism
* Communitarianism
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* Community arts
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* Compactness
* Compactness theorem
* Comparatio
* Compassion
* Compassionate conservatism
* Compatibilism
* Compatibilism and incompatibilism
* Compensation (essay)
* Compensationism
* Completeness (logic)
* Completeness theorem
* Complexity
* Composition (logical fallacy)
* Composition of Causes
* Compositionality
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* Compound question
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* Compromise
* Computability
* Computability logic
* Computable
* Computational complexity
* Computational epistemology
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* Computational theories of mind
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* Computer ethics
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* Computer theory
* Computers
* Comtism
* Conatus
* Concept
* Concept and object
* Concepts
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* Conceptual metaphor
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* Conceptual role semantics
* Conceptual scheme
* Conceptual system
* Conceptualism
* Concerned Philosophers for Peace
* Conciliarism
* Conciliation
* Concluding Unscientific Postscript to Philosophical Fragments
* Conclusive evidence
* Concord School of Philosophy
* Concrescence
* Concretion
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* Concupiscence
* Condemnations of 1210–1277
* Condensed detachment
* Conditio sine qua non
* Condition of possibility
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* Conditioned disjunction
* Condorcet
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* Conduct
* Confederación Nacional del Trabajo
* Confederalism
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* Configurations
* Confirmation
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* Confirmation holism
* Confirmational holism
* Conflict between good and evil
* Conflict of interest
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* Confucian Analects
* Confucian philosophy
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* Confucianism
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* Confucius
* Confusion of the inverse
* Congruence bias
* Conimbricenses
* Conjecture
* Conjectures and Refutations
* Conjunction elimination
* Conjunction fallacy
* Conjunction introduction
* Conjunctive grammar
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* Connectionism
* Connectives
* Connexive logic
* Connotation
* Conscience
* Conscience clause (medical)
* Conscious automatism
* Conscious mind
* Consciousness
* Consciousness-only
* Consciousness and Cognition
* Consciousness Explained
* Consensual crime
* Consensual living
* Consensus
* Consensus decision-making
* Consensus democracy
* Consensus reality
* Consensus theory of truth
* Consent
* Consent theory
* Consequence relation
* Consequent
* Consequentia mirabilis
* Consequentialism
* Consequentialist justifications of the state
* Consequentialist libertarianism
* Conservation (ethic)
* Conservation biology
* Conservation ethic
* Conservation movement
* Conservatism
* Considerations on Representative Government
* Consilience
* Consistent life ethic
* Consolatio Literary Genre
* Consolation of Philosophy
* Constance Naden
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* Constantin Brunner
* Constantin Noica
* Constantin Rădulescu-Motru
* Constantin Schifirneţ
* Constantin Stere
* Constantine of Kostenets
* Constantinos Speras
* Constitution
* Constitution of the Athenians (Aristotle)
* Constitution of the Athenians (Pseudo-Xenophon)
* Constitutional law
* Constitutional right
* Constitutionalism
* Construct (philosophy of science)
* Constructible universe
* Constructive dilemma
* Constructive empiricism
* Constructive realism
* Constructivism (art)
* Constructivism (mathematics)
* Constructivist epistemology
* Constructivist Foundations
* Consubstantiation
* Consumerism
* Consumption of fixed capital
* Container (Type theory)
* Container space
* Containment
* Contemporary anarchism
* Contemporary Islamic philosophy
* Contemporary philosophy
* Contemporary Political Theory
* Contemporary Pragmatism
* Contemporary Whitehead Studies
* Contentment
* Context-free grammar
* Context-free language
* Context-sensitive grammar
* Context-sensitive language
* Context principle
* Contextual empiricism
* Contextualism
* Contiguity
* Continental philosophy
* Contingency
* Contingency (philosophy)
* Contingency, irony, and solidarity
* Contingent
* Continuity (fiction)
* Continuum fallacy
* Continuum hypothesis
* Continuum of Humanist Education
* Contra Celsum
* Contra principia negantem disputari non potest
* Contract theory
* Contractarianism
* Contractualism
* Contradiction
* Contradictions
* Contraposition
* Contraposition (traditional logic)
* Contrapositive
* Contrast effect
* Contrast theory of meaning
* Contrastivism
* Contributions to Philosophy (From Enowning)
* Contributory value
* Control (management)
* Controversy over Cantor's theory
* Convention (norm)
* Convention T
* Conventionalism
* Convergence (series)
* Conversational implicature
* Converse accident
* Converse implication
* Converse nonimplication
* Converse relation
* Conversion (logic)
* Convivio
* Convolution (computer science)
* Cool (aesthetic)
* Cooperation
* Cooperative federalism
* Cooperative principle
* Coordination problem
* Coordinative definition
* Copernican principle
* Copernican Revolution
* Copernican Revolution (metaphor)
* Copula (linguistics)
* Cora Diamond
* Core ontology
* Corelative
* Coriscus of Scepsis
* Corliss Lamont
* Cornel West
* Cornelian dilemma
* Cornelio Fabro
* Cornelis Willem Opzoomer
* Cornelius Castoriadis
* Cornelius de Pauw
* Cornell realism
* Corollary
* Corporate behaviour
* Corporate crime
* Corporate nationalism
* Corporate social responsibility
* Corporate statism
* Corporatism
* Corpus Aristotelicum
* Correlation does not imply causation
* Correlative-based fallacies
* Correspondence theory of truth
* Corresponding conditional (logic)
* Corroboration
* Corruption (philosophical concept)
* Cosimo Boscaglia
* Cosmic consciousness
* Cosmic pluralism
* Cosmicism
* Cosmogony
* Cosmographia (Bernard Silvestris)
* Cosmological argument
* Cosmology
* Cosmology (metaphysics)
* Cosmopolitanism
* Cosmos
* Cosmotheology
* Cost-benefit analysis
* Costanzo Preve
* Costas Douzinas
* Council communism
* Count Lev Nikolaevich Tolstoi
* Count noun
* Richard von Coudenhove-Kalergi
* Countable
* Counter-Enlightenment
* Counterargument
* Counterexample
* Counterfactual conditional
* Counterfactual conditionals
* Counterfactuals
* Counterinduction
* Counterintuitive
* Counterpart theory
* Counting
* Coup d'État: A Practical Handbook
* Courage
* Course in General Linguistics
* Covering-law model
* Covering law model
* Cowardice
* Cowley Club
* CPNSS
* Craig's theorem
* Craig reduct
* Crantor
* Crass
* Crates of Athens
* Crates of Mallus
* Crates of Thebes
* Cratippus of Pergamon
* Cratylism
* Cratylus
* Cratylus (dialogue)
* Creatio ex materia
* Creatio ex nihilo
* Creation myth
* Creationism
* Creative accounting
* Creative destruction
* Creative Evolution (book)
* Creativity
* Credibility
* Credo quia absurdum
* Credo quia absurdum est
* Credo ut intelligam
* Crescens the Cynic
* Cressida Heyes
* Cries and Whispers
* Crime
* Crime against humanity
* Crime and punishment
* Crime and Punishment
* CrimethInc.
* CrimethInc. Guerilla Film Series, Volume One
* CrimethInc. N©! license
* CrimethInc. publications
* Criminal justice
* Crinis
* Crispin Sartwell
* Crispin Wright
* Cristina Bicchieri
* Cristoforo Landino
* Criteria of truth
* Criterion
* Critias (dialogue)
* Critic
* Critica Sociale
* Critical discourse analysis
* Critical historiography
* Critical Language Awareness
* Critical legal studies
* Critical Mass
* Critical pedagogy
* Critical philosophy
* Critical race theory
* Critical rationalism
* Critical reading
* Critical realism
* Critical social thought
* Critical theory
* Critical thinking
* Critical vocabulary
* Criticism of capitalism
* Criticism of Christianity
* Criticism of Hinduism
* Criticism of Islam
* Criticism of Jesus
* Criticism of Judaism
* Criticism of monotheism
* Criticism of postmodernism
* Criticism of religion
* Criticism of the Bible
* Criticism of the Catholic Church
* Criticism of the Latter Day Saint movement
* Criticism of the Qur'an
* Criticisms of anarchism
* Criticisms of electoralism
* Critique
* Critique (Journal of Socialist Theory)
* Critique of Cynical Reason
* Critique of Dialectical Reason
* Critique of Hegel's Philosophy of Right
* Critique of ideology
* Critique of Judgement
* Critique of Practical Reason
* Critique of Pure Reason
* Critiques of Slavoj Žižek
* Crito
* Critolaus
* Cronaca Sovversiva
* Cronius the Pythagorean
* Crooked Timber
* Crucial experiment
* Cruelty
* Crusties
* Crypto-anarchism
* Crypto-fascism
* Crystallized self
* CTheory
* Cuban Libertarian Movement
* Cubism
* Cultural bias
* Cultural evolution
* Cultural hegemony
* Cultural history
* Cultural identity
* Cultural influence of Plato's Republic
* Cultural materialism (anthropology)
* Cultural materialism (cultural studies)
* Cultural nationalism
* Cultural relativism
* Cultural studies
* Culture
* Culture of life
* Culture of the Song dynasty
* Cum hoc ergo propter hoc
* Cura te ipsum
* Curie
* Curiosity
* Curious George Brigade
* Curry's paradox
* Curt John Ducasse
* Curve fitting problem
* Cusa
* Cusanus
* Cut-elimination theorem
* Cuteness
* Cyberethics
* Cybernetics
* Cyborg theory
* Cyclic history
* Cynic epistles
* Cynical Realism
* Cynicism (contemporary)
* Cynicism (philosophy)
* Cyphernomicon
* Cyrenaics
* Cyril of Alexandria
* Cyropaedia
* Czech philosophy
* Czesław Lejewski
* Czesław Znamierowski