Set Comparison

1. To compare set elements in terms of inequalities, we can write

   

   or we can write

   

   to find branches whose assets are greater than some branch in Burnaby.

2. We can use any of the equality or inequality operators with some. If we change > some to > all, we find branches whose assets are greater than all branches in Burnaby.

3. To compare sets to see if one set contains another or not, we use the contains construct.

   

4. The contains construct is computationally expensive, and does not appear in the ANSI standard.