Аннотация:In Brusentsov's works on ternary logic the essence of fundamental logical relation, the consequence, was revealed and the possibility of its complete expression in the ternary logic was studied. The consequence is represented in Aristotle's syllogistics as common premise "All x are y". But Aristotle's syllogistics cannot be fully mapped to the modern binary logic. Brusentsov considered approach to algebraization of syllogistics. Revisiting Aristotle logic is both a step towards development of artificial intelligence, as well as a means for this development.