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#1 2013-10-26 15:52:31

B-Sho
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Need Help for Set Theory, for college class!

Hi I need help with Set Theory. I am in a Programming class in college and I dont understand this question at all! If you could help me, I would appreciate it.

Write three statements about sets. The first defines set A with values 1, 2, 3, 4 and 5. The second defines set B with the values 2, 4, 6, 8 and 10. The third lists the union of sets A and B. (Use the uppercase letter U to signify union.)

Thank you

#2 2013-10-26 16:44:24

bobbym
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Re: Need Help for Set Theory, for college class!

Hi B-Sho;

There are lots of ways to define those sets.

A = {1,2,3,4,5}

B = {2,4,6,8,10}


In mathematics, you don't understand things. You just get used to them.
I have the result, but I do not yet know how to get it.
All physicists, and a good many quite respectable mathematicians are contemptuous about proof.

#3 2013-10-26 16:57:53

B-Sho
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Re: Need Help for Set Theory, for college class!

Thank you bobbym!

What do you mean there are lots of ways to define those sets?

#4 2013-10-26 17:02:48

B-Sho
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Re: Need Help for Set Theory, for college class!

Also, is their a space between the A and U for union?  is it A U B or AUB altogether?

#5 2013-10-26 17:04:58

bobbym
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Re: Need Help for Set Theory, for college class!

Hi;

Either way, the space is more readable.

Other ways to define those sets are,

A is the set whose members are the first 5 positive integers.

Or you can say:

A = { n: n is an integer and n>0 and n<6 }

And there are more...


In mathematics, you don't understand things. You just get used to them.
I have the result, but I do not yet know how to get it.
All physicists, and a good many quite respectable mathematicians are contemptuous about proof.

#6 2013-10-26 17:10:55

B-Sho
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Re: Need Help for Set Theory, for college class!

Thank you. 

You saved my life big_smile

#7 2013-10-26 17:15:22

bobbym
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Re: Need Help for Set Theory, for college class!

Hi B-Sho;

Do not thank me, anybody forced to do set theory is better off dead. The last time I had to do some my spleen exploded. It was not a pretty sight.

I modified post number #5.


In mathematics, you don't understand things. You just get used to them.
I have the result, but I do not yet know how to get it.
All physicists, and a good many quite respectable mathematicians are contemptuous about proof.

#8 2013-10-26 17:21:29

B-Sho
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Re: Need Help for Set Theory, for college class!

The best you are.  Yesssssssssssssss.

#9 2013-10-26 21:24:28

bobbym
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Re: Need Help for Set Theory, for college class!

I was the best at only one thing. It was a strange feeling. I decided I would give it up and do math instead...

Anyway, hopefully you will survive the set theory and become a good programmer.


In mathematics, you don't understand things. You just get used to them.
I have the result, but I do not yet know how to get it.
All physicists, and a good many quite respectable mathematicians are contemptuous about proof.

#10 2013-10-27 04:02:14

B-Sho
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Re: Need Help for Set Theory, for college class!

I'm actually an Computer Information Networking Technology major "IT"  For some reason they make me take a Programming class.  No way in hell I could be a Programmer, I would hate my life if I did code for <=40 hours a week haha.

#11 2013-10-27 04:04:31

bobbym
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Re: Need Help for Set Theory, for college class!

Hi;

Oh sorry, then you will need the set theory even less.


In mathematics, you don't understand things. You just get used to them.
I have the result, but I do not yet know how to get it.
All physicists, and a good many quite respectable mathematicians are contemptuous about proof.
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