The set is read “set of all xsuch thatx is exactly divisible by 7”.

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- Nov 13th 2010, 09:05 AM #1

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## X:X?

Hi there,

I have never really done sets before and I am trying to understand the notations etc. Any how would I be correct in assuming that where it says x:x is exactly divisible by 3 and x:x is exactly divisible by 7 that it means that its a set that consists of all the numbers in set A that are divisible by 3 , and by 7?

- Nov 13th 2010, 09:13 AM #2

- Nov 13th 2010, 10:21 AM #3

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- Nov 13th 2010, 10:24 AM #4

- Nov 13th 2010, 10:29 AM #5

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- Nov 13th 2010, 10:31 AM #6