In this paper I argue for the view that structuralism offers the best perspective for an acceptable account of the applicability of mathematics in the empirical sciences. Structuralism, as I understand it, is the view that mathematics is not the science of a particular type of objects, but of structural properties of arbitrary domains of entities, regardless of whether they are actually existing, merely presupposed or only intentionally intended.

Husserl’s concept of subjectivity doesn’t bound to its logical and episte­­mological aspects, but it extends to its ethic und aesthetic dimensions. The external perception constitutes the original and founding experience of transcendental life. Moreover the per­­ception’s trend to a complete vision of the things moves the whole subject and explains its dynamism. This trend is just an ideal, which any kind of sub­­jective effort could realize. However Husserl considers some experiences, which imply the subject’s “liberation” from the passivity of a (...) tendency to a total intuition of the objects. That’s the case of the aesthetic consideration of the images. Beside she announces a peculiar way of relationship with the world and the others, but in another way as the perception. (shrink)