I am very confused with the definition of countable sets. What I ahev come to know about a countable set is, a countable set is a set of either a finite set or countably infinite set.ehat I understand from this is that a set having finite elements ( which we can count like 10, 50 etc) is called a finite set and hence its countable set but iam intimidated by the countably infinite set. Honestly I don't know what it means but what I understand is that it have many elemenys which are infinite but can be counted! And that is where I get confused. Like how we can count infinite elements.
I know its pretty useless to ask here but I searched wiki but I was not able to understand. So any help will be admirable. Thanks