This edition covers such topics as: "Logic as a science," "Basic logical laws," "Concept as a form of thinking," "Operations with concepts," "Judgment as a form of thinking," "Logical relations between judgments. Logic of questions and answers," "Modality of judgments," "Direct conclusions," "Simple categorical syllogism," "Conditional and conditionally categorical conclusion," "Dividing-categorical conclusion," "Conditionally dividing conclusion," "Inductive conclusions. Conclusions by analogy," "Logical foundations of argumentation," etc.