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Mathematics 8 Online
OpenStudy (anonymous):

100000000000................ continues infinitely. Is it a number?

OpenStudy (anonymous):

yes because the number line never stops

OpenStudy (anonymous):

|dw:1349359330358:dw| Is infinity a number?

OpenStudy (experimentx):

not a natural number and not real number either.

OpenStudy (anonymous):

infinity is something which cant be defined...

OpenStudy (experimentx):

no .. irrational number is a real number.

OpenStudy (anonymous):

Is it a number?

OpenStudy (anonymous):

IS infinity a number?

OpenStudy (experimentx):

it's a number is http://en.wikipedia.org/wiki/Hyperreal_number and http://en.wikipedia.org/wiki/Surreal_number ... I don't know much about this ... but this is not a real number and natural number.

OpenStudy (experimentx):

*in

OpenStudy (anonymous):

If 100000000000000... is not a natural number then the set of natural number is finite. right?

OpenStudy (anonymous):

@experimentX how do u say that it is not a real number??

OpenStudy (experimentx):

no ... the set of natural number is infinite but does not contain infinity.

OpenStudy (turingtest):

Infinity is a concept, not a number (I know I'm basically just restating, but it is worth emphasizing)

OpenStudy (experimentx):

you always write |dw:1349359774760:dw|

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