Jan Kořenský (24 May 1937 – 16 April 2022) was a Czech linguist. He worked on Czech grammar, general linguistics, linguistic methodology, sign theory, text theory and procedural grammar. He wrote more than 10 books and 70 papers. Career Kořenský was the most prominent representative of the Czech methodological reflection on linguistic research, intervening in discussions about grammars and the grammar of Czech, the scope and content of the notion of natural language grammar. He was a student of lecturers in Czech studies Bohuslav Havránek, Miroslav Komárek, Oldřich Králík and Miloš Dokulil. He was co-author of the Czech Grammar II and a major contributor to its conception. In the second half of the 1980s, he was the initiator of an extensive theoretical research focused on the basic concepts of Prague linguistic structuralism and their reflection in further stages of development. Kořenský was the promoter of positively interdisciplinary approaches to the description of language: Scientific conceptualization of the notion of play, possibilities of play as a modeling apparatus of speech, its dynamics. Application of general systems theory and chaos theory in contemporary linguistics. Sociologizing approaches in complex description of communication process and text. Epistemological dimensions of language and speech, reflection on the philosophy of language. References 1937 births 2022 deaths People from Hradec Králové Linguists from the Czech Republic