Using an argument similar to the one for Chapter 10, Problem 6(0. prove that 2 .. 1 SQUARE- \a" where- is non-context-free. Problem 6(i) Define the language SQUARE as follows: SQUARE-G" where it is a square 1 =la aaaa aaaaaaaaa This language could also be written as {a" (i) Use the pumping le mma to prove that SQUARE is nonregular