Blurb:

The second chapter is concerned with the etymological and evolutional exploration of the term function and its sense in folk use, and a review of previous studies on the concept of function in systemic functional linguistics and other theories, and schools, such as the Prague School, the Copenhagen School, West Coast functionalism, Dik’s functional discourse grammar and in some more formal/evolutionary approaches to modelling, such as Kirby's Function and Innateness.