 Since the real numbers can be used to represent points along an infinitely long line, this implies that a line segment of length 1, which is a part of that line, has the same number of points as the whole line.Moreover, it has the same number of points as a square of area 1, as a cube of volume 1, and even as an unbounded "n"-dimensional Euclidean space formula_2 (see Space filling curve).The number of elements (either real numbers or points) in all the above-mentioned sets is uncountable, as it is strictly greater than the number of natural numbers.