Abstract: This article tries to bring out and to identify some basic notions (their meaning and uses), which play a key role in the process of formingcategorical and conceptual apparatus of the argumentation in contemporary discourse. Argument, reasoning and argumentation are the notions that are pointed in this research. Their understanding and definitions given by leading authors (Douglas Walton, Frans van Eemeren, Chaim Perelman, Stephen Toulmin) in the field of theory of argumentation are the object of our analysis. The individual research and analysis of these three notions contribute to using them precisely in different rhetorical situations.
Keywords: argument, reasoning, argumentation, convincing communication, argumentation structure, argumentative discourse.
Rhetoric and Communications E-journal, Issue 15, January 2015, rhetoric.bg/, journal.rhetoric.bg, ISSN 1314-4464