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  2. Neighbourhood (mathematics) - Wikipedia

    en.wikipedia.org/wiki/Neighbourhood_(mathematics)

    In topology and related areas of mathematics, a neighbourhood (or neighborhood) is one of the basic concepts in a topological space. It is closely related to the concepts of open set and interior . Intuitively speaking, a neighbourhood of a point is a set of points containing that point where one can move some amount in any direction away from ...

  3. List of adjectival and demonymic forms for countries and nations

    en.wikipedia.org/wiki/List_of_adjectival_and...

    A country demonym denotes the people or the inhabitants of or from there; for example, "Germans" are people of or from Germany. Demonyms are given in plural forms. Singular forms simply remove the final s or, in the case of -ese endings, are the same as the plural forms. The ending -men has feminine equivalent -women (e.g. Irishman, Scotswoman).

  4. List of set identities and relations - Wikipedia

    en.wikipedia.org/wiki/List_of_set_identities_and...

    In constructive mathematics, "not empty" and "inhabited" are not equivalent: every inhabited set is not empty but the converse is not always guaranteed; that is, in constructive mathematics, a set that is not empty (where by definition, "is empty" means that the statement () is true) might not have an inhabitant (which is an such that ).

  5. List of adjectivals and demonyms for cities - Wikipedia

    en.wikipedia.org/wiki/List_of_adjectivals_and...

    The following is a list of adjectival forms of cities in English and their demonymic equivalents, which denote the people or the inhabitants of these cities. Demonyms ending in -ese are the same in the singular and plural forms. The ending -man has feminine equivalent -woman (e.g. an Irishman and a Scotswoman).

  6. Inwohner - Wikipedia

    en.wikipedia.org/wiki/Inwohner

    This could mean Hufners and other inhabitants of the villages who held real property, or home owners in towns. In this region as well as in the Vogtland , the sense of the word shifted towards today's Einwohner , meaning any inhabitant of a populated place.

  7. Domicile (law) - Wikipedia

    en.wikipedia.org/wiki/Domicile_(law)

    "formerly domiciled resident", in relation to a tax year, means a person— (a) who was born in the UK, (b) whose domicile of origin was in the UK, (c) who was resident in the UK for that tax year, and (d) who was resident in the UK for at least one of the two tax years immediately preceding that tax year. [79]

  8. Megacity - Wikipedia

    en.wikipedia.org/wiki/Megacity

    It is based on vector field calculations obtained by assuming that, in a given space, all inhabitants and jobs exert the same attractive force A and repulsive force R. The net force (A - R) exerted by each inhabitant or job is given by [1/(1 + d)] - [1/( β + d/2)], where d = distance and β is the only parameter.

  9. Population density - Wikipedia

    en.wikipedia.org/wiki/Population_density

    In comparison, based on a world population of 8 billion, the world's inhabitants, if conceptualized as a loose crowd occupying just under 1 m 2 (10 sq ft) per person (cf. Jacobs Method), would occupy an area of 8,000 square kilometres (3,100 sq mi) a little less than the land area of Puerto Rico, 8,868 square kilometres (3,424 sq mi).