===== Euclidean space =====
==== Set ====
| @#55CCEE: context     | @#55CCEE: $ n\in \mathbb N $ |
| @#FFBB00: definiendum | @#FFBB00: $\mathbb E^n \equiv \langle d,\mathbb R^n\rangle $ |
| @#AAFFAA: inclusion   | @#AAFFAA: $d:\mathbb R^n\times \mathbb R^n\to \mathbb R_+ $ |
| @#55EE55: postulate   | @#55EE55: $d(x,y):=\left( \sum_{j=1}^n (x_j-y_j)^2 \right)^\frac{1}{2} $ |

==== Discussion ====
=== Reference ===
Wikipedia: [[http://en.wikipedia.org/wiki/Euclidean_space|Euclidean space]]
==== Parents ====
=== Subset of ===
[[Metric space]]
=== Context ===
[[Real coordinate space]]