Functional Language Exercises
  1. Write a function that takes two parameters, an atom and a list, and returns true if the atom is an element in the list and false otherwise.
  2. Write a function that takes two parameters, a list and an atom, and returns a list identical to the first parameter except with all instances of the given atom deleted.
  3. Write a function similar to the previous one, except that it deletes instances of a list (the second parameter) from a list of lists (the first parameter). For example, 
           (deleteList '((1 2) (1 3) (1 2)) '(1 2))
    would return '((1 3)).
  4. Write a function that takes two parameters, each of which is a list of atoms, and returns a list similar to the first parameter except that all atoms in the first list that are elements in the second list have been removed from the first list. For example, 
           (removeAll '(1 2 1 3 4 2) '(1 2))
    would return '(3 4).
  5. Write a function that takes a list as a parameter and returns a list identical to the parameter except the last element has been deleted.
  6. Write a function that returns the reverse of its simple list parameter.
  7. Write a function that takes a list of numbers as a parameter and returns a list with the smallest and largest numbers in the input list. For example, if you were to call the function on '(1 2 3) — or on '(3 2 1) — it would return '(1 3).