Abstract

Bernard Bolzano criticised Kant's philosophy so vehemently that his pupil Franz Prihonsky called him "Anti-Kant". One of his criticisms concerns Kant's cosmological antinomies. The context of this critique is the problem of limits of knowledge. Kant wanted to prove that there are such boundaries, and to show where these are located. In this paper we will (i) schematize Kant's antinomies (to see what Bolzano really criticised on them) and (ii) summarize Bolzano's criticism, which is distributed over his and his student's work. At the beginning we will work out the (more fundamental) theoretical differences between Kant's and Bolzano's philosophy to see what roles these play in the construction of the antinomies.