ABSTRACT
In the years from 1891 to 1893 Edmund Husserl was very much interested in problems concerning the nature of logic, not only from the psychological point of view as illustrated in the Philosophy of Arithmetic, but also from the formal point of view. Regardless of his periodical change of position with regard to the foundations of logic, his studies in formal logic represent an independent interest which continued from his first mathematical studies to the mature treatment of formal logic of his last period. The first volume of Schroder's Lectures on the Algebra of Logic appeared in 1890, and Husserl took advantage of the event to define his own position in logical theory with respect to this representative work on symbolic logic. Husserl contends that the "algorismic" logic errs, just as the traditional deductive logic had erred, in construing deduction too narrowly. The subject-matter of deductive logic is not made up of particular concepts, such as numbers and figures.
