Question

conclusion of countable set in real analysis​

Answer 1

The set of all finite subsets of the natural numbersis countable. The elements of any finite subset can be ordered into a finite sequence. There are only countably many finite sequences, so also there are only countably many finite subsets. ... (Basic)

Answer 2

Answer:

Theorem: The set of all finite subsets of the natural numbers is countable. The elements of any finite subset can be ordered into a finite sequence. There are only countably many finite sequences, so also there are only countably many finite subsets.

please Make As Brainlist Answers