ABSTRACT
Basic principle of linguistic communication, postulated by K.Bühler with reference to mathematics and logic, from which allegedly all linguistic factors can be deductively derived and explained: (a) the basic functions of language are representation, expression and appellation ( organon model of language); (b) language is a system of signs which are used according to the principle of abstractive relevance; (c) language is to be studied under the subject-related phenomena Sprachwerk ‘language work’ and Sprachgebilde ‘language form’ (four-field schema); (d) language is constituted by the two interrelated levels of semantics and syntax.
