Cassirer’s approach to symbolic mediation differs in some important ways from currently prevailing approaches to meaning and signification such as semiology and its more recent poststructuralist varieties. Cassirer’s philosophy of symbolic forms offers a theory of symbols that does not amount to a sign theory or semiology. It sketches out, rather, a dynamic and nonrepresentational framework in which an alternative notion of difference takes centre stage. In order to make the original features of Cassirer’s approach stand out, I will compare (...) it with the approach of the perhaps most influential differential thinker of our day, Jacques Derrida. The philosophy of symbolic forms explicitly prefigures a great many of the insights and concerns of poststructuralism. Yet, there are some critical differences. Rather than rejecting the concepts of objectivity, identity, and truth on the premises established by traditional metaphysics, Cassirer chooses to redefine these concepts through a radical conceptual reframing. The result is a doctrine that—in Derridean parlance—neither jumps beyond the oppositions of metaphysics, nor tries to resolve them in a Hegelian synthesis—a doctrine, that is, that even though it appeals to origins, cannot so easily be dismissed as yet another instantiation of the metaphysics of presence. (shrink)

The ArgumentIn the minds of many, the Bourbakist trend in mathematics was characterized by pursuit of rigor to the detriment of concern for applications or didactic concessions to the nonmathematician, which would seem to render the concept of a Bourbakist incursion into a field of applied mathematices an oxymoron. We argue that such a conjuncture did in fact happen in postwar mathematical economics, and describe the career of Gérard Debreu to illustrate how it happened. Using the work of Leo Corry (...) on the fate of the Bourbakist program in mathematics, we demonstrate that many of the same problems of the search for a formalstructurewith which to ground mathematical practice also happened in the case of Debreu. We view this case study as an alternative exemplar to conventional discussions concerning the “unreasonable effectiveness” of mathematics in science. (shrink)