Anton Marty was a functionalist who distinguished between synchronic and diachronic laws and laid clown the foundations of a teleological concept of language. This incorporated philosophy of language with general semasiology, based on the universal functional language categories which correspond to the fundamental intention of acts, working with Brentano's phenomenal psychology. Marty's functional concept of languague, with its stress on synchronic structure, is inseparable from the process of crystallisation of modem linguistic thought in Czech circles. As early as 1911, Marry's Views helped Vilem Mathesius clarify his ideas on a system of functional linguistics, while the questions of meaning and semiotics also became part of Prague Linguistic Circle thinking in the mid-1930s. Roman Jakobson later returned to the Prague phonology (linked with his name and that of Trubetzkoy) with a new concept of the phoneme (the active nature of the phoneme). He also continued in his semiotic research into the relationship between the expressive and content aspects of poetic languague. From the 1940s onwards, B. Trnka was concerned with the question of experiencing language and provided a new solution for the relation between form and meaning, i.e. meaning function. J. Mukarovsky also made significant process with his semiotic functional structuralism.