(New page: The set of real numbers is uncountable. A simple proof is Cantor's diagonal argument. The notion of countability or uncountability of infinite sets is interesting because it is not intui...) |
(No difference)
|
Latest revision as of 15:36, 31 August 2008
The set of real numbers is uncountable. A simple proof is Cantor's diagonal argument. The notion of countability or uncountability of infinite sets is interesting because it is not intuitively obvious what the "size" of such sets should be. It's fun to bait people by asking them if there are more rational numbers than natural numbers.