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| Question 915888:  I am having difficulty writing set builder notations.
 {0,3,6,9,12}
 {-3,-2,-1,0,1,2,3}
 {m,n,o,p}
 How would I write something like:
 x where x is a positive multiple of 3 less than 15?
 { x | x =  ???? do I just write out the words or does it have to be an equation?
 { x | x = whole numbers greater than -4 and less than 4
 { x| I have no idea how to do one with letters :-(
 Answer by richard1234(7193)
      (Show Source): 
You can put this solution on YOUR website! There are several ways to write the sets formally. Here are examples: 
 {0,3,6,9,12} =
  (  means that x leaves a remainder of zero when divided by 3). An alternate way is  . 
 {-3,-2,-1,0,1,2,3} can be written as
  (all x such that x is an integer and |x| is less than or equal to 3) 
 {m,n,o,p} I don't really know of a nice way to state this in set-builder notation, other than
  which is correct but doesn't make much sense since it is much longer than writing {m,n,o,p}. 
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