#Euclidean_space  a space in which Euclid's axioms and definitions apply; a metric space that is linear and finite-dimensional
  supertype:  metric_space  a set of points such that for every pair of points there is a nonnegative real number called their distance that is symmetric and satisfies the triangle inequality
     supertype:  topological_space__topologicalspace__space  (mathematics) any set of points that satisfy a set of postulates of some kind; "assume the vector space is finite dimensional"
        supertype:  set  (mathematics) an abstract collection of numbers or symbols; "the set of prime numbers is infinite"
           supertype:  collection  something gathering separated things (entities/situations)
              supertype:  divisible_entity__divisibleentity  many classifications under this category are application-dependant
                 supertype:  entity  something that can be "involved" in a situation
                    supertype:  thing__something___T__t___3D_or_4D_thing_or_anything_else  any category (type or individual) is instance of this type; any type is also a subtype of this type
                 supertype:  divisible_thing__divisiblething
                    supertype:  thing__something___T__t___3D_or_4D_thing_or_anything_else  any category (type or individual) is instance of this type; any type is also a subtype of this type

No statement uses or specializes Euclidean_space; click here to add one.