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What do they mean when they say it is a set up job?

If you have a set S and a set T, what does it mean to say S<T?

  • Answer:

    I believe this is improper notation. A⊆B means that A is a subset of B (or equal to it) |A| is the number of elements in A |A| < |B| means that A has fewer elements than B. I think they mean the latter, but it's not how you're supposed to write it. See the link below for other ways to write the number of elements of a set mathematically.

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I believe this is improper notation. A⊆B means that A is a subset of B (or equal to it) |A| is the number of elements in A |A| < |B| means that A has fewer elements than B. I think they mean the latter, but it's not how you're supposed to write it. See the link below for other ways to write the number of elements of a set mathematically.

KevinM

I believe this means S is a proper subset of T. Usually I have seen this as the sideways U (curved rather than V) I did find some references to something called upper and lower sets, but I am unfamiliar with these.

Josh K

I believe it means that set S is contained with in set T. Set T is greater than set S so there are more member in set T that just set S

Eclipse-girl

I believe this means S is a proper subset of T. Usually I have seen this as the sideways U (curved rather than V) I did find some references to something called upper and lower sets, but I am unfamiliar with these.

Josh K

I believe it means that set S is contained with in set T. Set T is greater than set S so there are more member in set T that just set S

Eclipse-girl

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