Where can I find a good proof of Cantor Beirnstein's theorem?

Question

Mathematics

Hello. Advise where you can read about the proof of Cantor Beirnstein's theorem.
I do not quite understand the documentation in the training manual
. I would like to read another presentation. Usually

someone who understands the theorem helps me. Where is the best proof? who will advise?

Answer 1

Vereshchagin N.K., Shen A. Lectures on Mathematical Logic and Theory of Algorithms. Part 1. Beginnings of set theory. M.: MTsNMO, 2012.
The book is freely distributed.
PS. Bernstein, not Beirnstein.
PPS. Kantor and Bernstein are two different people. Cantor–Bernstein theorem