The Blow of the Epistemology of Mathematics: Turan’s and Posy’s Position between The Cartesian Doubt and Kant's Synthetic A Priori

By Marsigit
Yogyakarta State University

Turan, H., 2004, elaborated that Descartes called mathematical propositions into doubt as he impugned all beliefs concerning common-sense ontology by assuming that all beliefs derive from perception seems to rest on the presupposition that the Cartesian problem of doubt concerning mathematics is an instance of the problem of doubt concerning existence of