Expressions with Bound Variables Quiz

1. Given that variable x has type string, write an expression to test whether x contains any commas or semicolons.

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2. Given that variable s has type set of int:

1. Write an expression stating that s contains at least one even number
2. Write an expression stating that for a given integer x, each element in s is either not even or is not less than x
3. Given that s contains at least one even number, write an expression to determine the lowest even number in s
4. Write an expression that yields all the even numbers in s
5. Write an expression that yields the squares of all the numbers in s
6. Write an expression that yields the squares of all the even numbers in s

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