Fundamentals of theoretical arithmetic. Tutorial. 2nd edition. Belonovsky P.D.

The book includes the following sections: “Natural number and many”, “Negative numbers and fractions”, “On divisibility of numbers”, “irrational numbers”, “complex numbers”, and is intended primarily for students of physical and mathematics faculties of pedagogical universities. The manual will also be useful to teachers of relevant disciplines, mathematics teachers and everyone who is interested in the teaching of the number and theory of numbers.