-Does the set $\Z^2 = \setparts{\colvector{m\\n}}{m,n\in\Z}$ with the operations of standard addition and multiplication of vectors form a vector space?

+Does the set $\Z^2 = \setparts{\colvector{m\\n}}{m,n\in\Z}$ with the operations of standard addition and scalar multiplication of vectors form a vector space?

## changes.txt