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a theoretical question, i just want your insights!
i would go w/ irrational cuz they are uncountably infinte
Irrational. There are an infinite amount. For an example, consider 1.24 and 1.25 (completely random). There's 1.245 in between, amnd 1.246. Between those, there's 1.2455 and 1.2456. This goes on for \(\ \Huge \infty !\)
yeah because between 1 and 2 there can be an infinite
yeah, perhaps you're right! basing on grammar and language rule,. but i think in other sense, rational are more in number than irrational..
infinity times infinity is more than infinity
I think both are numerous. There's an infinite amount of rational numbers, and an infinite amount of irrational numbers. Both go \(\ \huge \rightarrow \infty . \)
\(\ \Huge \pm\infty that is \).
The answer is the irrational numbers. For some better understanding of why, you need to understand Cantor's work in the countability of infinite sets. The rationals are countably infinite; the irrationals are uncountably infinite.
Oh @nbouscal hit the spot!!
Brief coverage of the notion of countability: A set is countably infinite if it can be put into a bijection with the natural numbers. If it cannot, then it is uncountably infinite. Cantor's proof of the uncountability of the reals is known as his diagonal argument, and is a very fun proof. There are a lot of resources available on the web for learning about and understanding this proof.
our professor said, the answer is irrational.. but i hate to accept his, idea same as yours, by saying the difference in definition- "countable and uncountable".
Why do you hate to accept it? Have you seen and understood Cantor's diagonal argument? It is quite intuitive once you understand it.
may i have the website of it?
Here is a thread here on OS that may help you: http://openstudy.com/updates/4fc25b57e4b0964abc83b70b Here is Wikipedia on Cantor's diagonal argument: http://en.wikipedia.org/wiki/Cantor%27s_diagonal_argument Here is Professor Francis Su of Harvey Mudd giving a lecture on Countable and Uncountable Sets: http://www.youtube.com/watch?v=mciBPGCvpBk
Uncountable is not at all synonymous to nonexistent, it is simply saying that you can't count them, for a specific definition of counting (bijection to the naturals).
i'm not yet convinced. but, anyway, thanks for the ideas.
If you are not yet convinced then you simply have not yet understood the argument :)
i haven't read it yet! :-)