Discussion about math, puzzles, games and fun.   Useful symbols: ÷ × ½ √ ∞ ≠ ≤ ≥ ≈ ⇒ ± ∈ Δ θ ∴ ∑ ∫ • π ƒ -¹ ² ³ °

You are not logged in.

## #1 2009-09-16 11:36:45

MathsIsFun

Offline

### Set-Builder Notation

Also just finished Set-Builder Notation

Please to pick holes in page.

"The physicists defer only to mathematicians, and the mathematicians defer only to God ..."  - Leon M. Lederman

## #2 2009-09-16 11:48:31

bobbym

Online

### Re: Set-Builder Notation

Hi MathsisFun;

Near the bottom:

But how would you list all the Real Numbers between 2 and 6 ?

Does between include the endpoints ? As you have written here:

maybe this is correct:

What do you think?

Last edited by bobbym (2009-09-16 11:59:01)

In mathematics, you don't understand things. You just get used to them.
I have the result, but I do not yet know how to get it.
All physicists, and a good many quite respectable mathematicians are contemptuous about proof.

## #3 2009-09-16 12:10:02

MathsIsFun

Offline

### Re: Set-Builder Notation

Hmmm ... I was extending the concept of {2, 3, 4, 5, 6} so I may just reword it.

"The physicists defer only to mathematicians, and the mathematicians defer only to God ..."  - Leon M. Lederman

## #4 2009-09-16 12:16:40

bobbym

Online

### Re: Set-Builder Notation

Hi Maths;

Maybe saying, between 2 and 6 inclusive, might clear any ambiguity. Just a thought.

Last edited by bobbym (2009-09-16 12:16:56)

In mathematics, you don't understand things. You just get used to them.
I have the result, but I do not yet know how to get it.
All physicists, and a good many quite respectable mathematicians are contemptuous about proof.