Search All of the Math Forum:

Views expressed in these public forums are not endorsed by NCTM or The Math Forum.

Notice: We are no longer accepting new posts, but the forums will continue to be readable.

Topic: Chapt8 well defined "open set" and well-defined Reals in light of
10^603 #523 Correcting Math 3rd ed

Replies: 10   Last Post: Aug 8, 2011 8:14 PM

 Messages: [ Previous | Next ]
 Earle Jones Posts: 235 Registered: 12/6/04
Re: Chapt8: well-defined Reals in light of 10^603 #524 Correcting Math 3rd ed
Posted: Jul 11, 2011 12:54 AM

In article
Archimedes Plutonium <plutonium.archimedes@gmail.com> wrote:

[...]

> So what is the square root of 2? If Irrationals are just imprecise
> notions? Well, you take the square root of 2 out
> to 603 decimal places to the right of the decimal point. It is still a
> rational number and it is what the square root of
> 2 really is....

*
Archie: If sqrt(2) is rational (as you say above), it can be written
as

sqrt(2) = a/b

where a and b are integers (definition of a rational number.)

Please tell us what integers a and b are.

Thanks,

earle
*