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A System of Logic

1843 · by John Stuart Mill

Inductive logic and the method of the sciences – logic as psychology.

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Introduction

Mill’s first major work appeared in 1843 in two volumes divided into six books, and was revised through many editions in his lifetime. It deals with names and propositions, with deduction, which Mill held to rest ultimately on induction, and with the methods for discovering causes – agreement, difference, residues and concomitant variations – still taught as “Mill’s methods”. Book VI applies the approach to the “moral sciences”, including a science of character Mill called ethology. Gadamer traced the spread of the German word Geisteswissenschaften to the translation of this book. Frege and Husserl later attacked Mill’s empiricist account of logic and mathematics as psychologism.

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