Epistemological Remarks on the Foundations of Logic and Mathematics

The book deals with the problems of meaning, truth, and proof as they are encountered in logic and mathematics. To Kant it owes the basic concepts of scheme and regulative idea, and the insight that constructivity is the very root of mathematics: mathematics is «synthetic», logic is «analytic». Husserl's notion of ideation and Brentano's «descriptive psychology» have contributed to methodological clarifications.