Discrete Math. Lecture course for students of natural science training areas: Textbook

This textbook presents the material of lectures on discrete mathematics. The corresponding discipline is part of the curricula areas of the training "Informatics and computer technology" and "Software Engineering", which is carried out at the Saratov State Technical University named after Yu. A. Gagarin at the Institute of Applied Information Technologies and Communications.
The manual is also addressed to students studying in the areas of training included in the UGC: "Mathematics and Mechanics", "Computer and Information Sciences", "Physics and Astronomy", and other natural science areas where discrete mathematics are provided . The book will also be useful for teachers, graduate students and specialists working in the applied areas of mathematics