Nikos Psarros

The paper asks about the reasons for the neglect of chemistry in modern philosophy of science and investigates in how far this science can be the object of an autonomous philosophical reflection. It is argued that from a culturalistic point of view chemistry indeed offers a field of interesting questions ranging from the reconstruction of its epistemological objects to the elucidation of the semantic functions of terms like "atom" or "molecule". It is further argued that the philosophical reflection upon chemistry has important consequences for the didactic, the history and even the ethics of this science, making thus philosophy to a partner of chemistry in fulfilling its purposes in human society.

In this article the problem of the so-called 'coinciding objects', i.e. the question whether a substantially homogeneous thing is something ontologically different from the corresponding 'piece of stuff' it is made of or not, is examined from a pragmatical and language-analytical point of view. Instead of recurring to ontological assertions, I propose to regard 'stuffs' or 'substances' as a mode of speaking about things that fulfil the condition of being homogeneous in respect to a certain kind of properties that are called substantial properties. The coincidence problem is resolved by demonstrating that terms for substantially homogeneous things and the corresponding 'pieces of stuff' are predicative expressions in an Aristotelian genus-species relationship