Critique of Pure Reason
(Ger. Kritik der reinen Vernunft) The first of three Critiques written by Immanuel Kant (1781) in which he undertook a critical examination of pure reason, its nature and limits, with a view to exhibiting a criterion for judging the validity of propositions of metaphysics. The first Critique was followed by the Critique of Practical Reason (1788), and the Critique of Judgment (1790). See Kantianism. — O.F.K.