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

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**auyeungyat****Member**- Registered: 2013-09-23
- Posts: 22

I got stuck in thinking the infinity.

I thought like this:

Let infinity be x

2x=2 infinity

The main problem is:There isn't 2 times infinity!

How can it be proven?

*Last edited by auyeungyat (2013-09-23 02:04:58)*

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**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 96,671

Hi;

Welcome to the forum.

I think most of that was established by Cantor and the mathematicians that followed. For one thing infinity is not a number, it is a concept. The rules of arithmetic do not apply.

**In mathematics, you don't understand things. You just get used to them.**

**If it ain't broke, fix it until it is.**

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auyeungyat wrote:

I got stuck in thinking the infinity.

I thought like this:

Let infinity be x

2x=2 infinity

The main problem is:There isn't 2 times infinity!

How can it be proven?

infinity is like /dev/null

Whatever you write or add to it it still remains /dev/null

'And fun? If maths is fun, then getting a tooth extraction is fun. A viral infection is fun. Rabies shots are fun.'

'God exists because Mathematics is consistent, and the devil exists because we cannot prove it'

'But our love is like the wind. I can't see it but I can feel it.' -A Walk to remember

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