Collection of elementary exercises by logic

The purpose of this book by N.O. Lossky is to provide tasks and exercises suitable for any logic textbook, to help readers, regardless of their level of training, to master its basic course. The book contains many logical tasks and exercises for every taste according to the main sections of logic that have not lost relevance and didactic force to this day. The last chapter provides examples of various evidence and refutations - from the proof of the equality of the angles of an isosceled triangle to proof of the immortality of the soul - for an independent analysis by the reader.
The book will be interesting to the widest circle of readers - students and schoolchildren studying logic, teachers, as well as all those interested in logic and logical tasks