ABSTRACT
We speak of teleological functions in roughly three kinds of context: (i) in connection with complex systems that can non-arbitrarily be spoken of as working in a certain way, with parts and features that play certain roles in that working; (ii) where we can speak of a type of object as having a certain regular use; and (iii) where we can speak of a type of object or activity as being made or being done in a certain way. 1
