Use of Apostrophe in Inequalities

by Raja Bhattacharya
(Montreal, QC, Canada)

The other day I was helping my son with his inequality/inequation problems and came across an expression A' U B. I know about the A U B but am not sure what A' stands for. I know that in Boolean algebra they use the apostrophe to mean a logical NOT, but have no clue as to the significance of this apostrophe in inequality problems.
Any information is appreciated.
Thanks in advance.
Raja Bhattacharya

Comments for
Use of Apostrophe in Inequalities

Average Rating starstarstarstarstar

Click here to add your own comments

Mar 23, 2011
Rating
starstarstarstarstar 		Use of Apostrophe in Inequalities
by: Anonymous

Hi Raja,

The apostrophe means "the complement of" which means elements that are in the universal set, but not in A.

So your problem means the "complement of" A union B.

The elements that are "not" in A union B.

I hope this helps,
Karin

Click here to add your own comments

Join in and write your own page! It's easy to do. How?
Simply click here to return to Parents


Having Trouble with Your Homework?

algebrator

[ ?] Subscribe To This Site

XML RSS
Add to Google
Add to My Yahoo!
Add to My MSN
Add to Newsgator
Subscribe with Bloglines


Enjoy This Site?
Then why not use the button below, to add us to your favorite bookmarking service?

| Homepage | Contact Me | Privacy Policy | Disclaimer |Affiliates



Return to top
Copyright© Algebra-class.com 2009.