complete the proof Propost ion: If a positive intege r m is not the square of any integer, then Vm is irrational. Solution Let nbe a positive integer such that there is no msuch that n=m2. Suppose nis rational. Then there exists pand qwith no common factor (beside 1) such that n=pq Then n=p2q2 However, nn is an positive integer and p and q have no common factors beside 1. So q=1. This gives that n=p2 Contradiction since it was assumed that nm2 for any m c. c 7down voteaccepted Let nbe a positive integer such that there is no msuch that n=m2. Suppose nis rational. Then there exists pand qwith no common factor (beside 1) such that n=pq Then n=p2q2 However, nn is an positive integer and p and q have no common factors beside 1. So q=1. This gives that n=p2 Contradiction since it was assumed that nm2 for any m c. c.