A treatise by J. S. Mill, published 1843, revised and enlarged in the editions of 1850 and 1872.
The importance of Mill's Logic lies in the fact that it supplied, to use the author's own words (Autobiography), ‘a text‐book of the opposite doctrine [to the a priori view of human knowledge put forward by the German school]—that which derives all knowledge from experience, and all moral and intellectual qualities principally from the direction given to the associations’. In this work Mill stressed the importance of inductive methods, while, unlike F. Bacon, giving its proper share to deduction.
In attributing to experience and association our belief in mathematical and physical laws, he came into conflict with the intuitional philosophers, and gave his own explanation ‘of that peculiar character of what are called necessary truths, which is adduced as proof that their evidence must come from a deeper source than experience’. This conflict with the intuitional school is further developed in Mill's Examination of Sir William Hamilton's Philosophy.