antithesis See HEGEL.

apagoge See ARISTOTLE.

anti-razor See OCKHAM'S RAZOR.

Antiphon See SOPHISTS.

Antipater See STOICISM.

anthroposophy See STEINER.

antilogism an inconsistent triad of propositions, two of which are the...

antinomianism the view that one is not bound by moral law;...

antinomy See KANT.

Antiochus of Ascalon (c.130–c.68 B.C.), Greek philosopher and the last prominent member of...

aporetic See APORIA.

apophantic See HUSSERL.

apodosis See COUNTERFACTUALS.

apodictic See HUSSERL, KANT.

apocatastasis (from Greek, 'reestablishment'), the restoration of all souls, including Satan's...

apellatio See PROPRIETATES TERMINORUM.

apeiron Greek term meaning 'the boundless' or 'the unlimited', which evolved...

apatheia See STOICISM.

a priori argument See A PRIORI.

a priori justification See A PRIORI, JUSTIFICATION.

A-proposition See SYLLOGISM.

Apuleius of Madaura See MIDDLE PLATONISM.

Aquinas Saint Thomas (1225–74), Italian philosopher-theologian, the most influential thinker of...

a priori prior to or independent of experience; contrasted with 'a posteriori'...

application (of a function) See COMBINATORY. LOGI. applied ethics, the domain of ethics that...

apperception See KANT.

appellation See SHERWOOD.

appearing, theory of See THEORY OF APPEARING.

a posteriori See A PRIORI.

Arabic philosophy the philosophy produced in Arabic by philosophers of various ethnic...