On the way from logic to algebra

In this paper, which is from a shorthand report of the author's plenary lecture at the international conference “Malcev Meeting 2009” (Novosibirsk, 24–28 August 2009), the influence of three papers by Anatolii Ivanovich Malcev [1]–[3] on the development of algebra and mathematical logic is discussed.
Bibliography: 75 titles.