Logical competence of speaker as factor in argumentation: history and modern state

The article touches upon logical culture as a factor in argumentation. The paper traces interaction of two ancient disciplines — rhetoric and logic, which are regarded as the basis for the development of ancient and modern theories of language and style. The author believes that logical and rhetoric methods have a universal character. The examples of using the deductive techniques taken from the works of G. Galileo, the creator of experimental physics, and N.M. Gersevanov, the Russian scientist of the 20th century and the founder of the Russian school of building mechanics are given in this paper.

rhetorical demonstration in scientific argumentation, invention, disposition, eloquent, the right and apagogical argumentation in the deductive demonstration, tropes and figures, synecdoche