Hi! I'm struggling in identifying the lattice points and atom basis. As I understand in a cube, there are 8 lattice points, on on each corner of a cube. But in 2d it is any square between 4 points which are the lattice points. Is this correct? So if the points on the corners are the lattice points. What confuses me is that a primitive cell can only have 1 lattice point and so if it's a square I thought it would have four lattice points not one. Also I don't understand how to define a basis with each lattice point?