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Is infinity the last number

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Infinity is not a number. Infinity is a property meaning without ends or limits. Numbers are said to go on to infinity because there is no end. They keep going endlessly.

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Most likely. Just as i is an impossible number. funny they both start with "i", as in Imaginary.

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No, the last number is infinity+1 ;)

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its not a number its a word

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infinity is like the energizer bunny, goes on and on

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Fascinating question. I don't think it is. The pure mathmatists have several infities. Like infinity plus 1; infinity times infinity; and so it goes.
I recall a maths lecturer referring to the "first countable infinity", which you get by just adding 1 each time. Weird.

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http://mathworld.wolfram.com/Aleph-0.html
It's the first one, aleph-0 When most people say "infinity", they're probably talking about aleph-0.

aleph-1 is bigger, but you can't get there by adding any finite set or number to it!

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If infinity exists, and you could travel through it, you could go forever at the speed of light and never get closer to the end than when you started. And if the universe is infinite, no matter where you stand you could say you we're in the middle and you would be correct, no end, no last number,no beginning