completely regular
31Zero set — For the album by Moebius, Plank, Neumeier, see Zero Set. In mathematics, the zero set of a real valued function f : X → R (or more generally, a function taking values in some additive group) is the subset f − 1(0) of X (the inverse image of… …
32clockwork — n. (misc.) to work like clockwork ( to work perfectly ); as regular as clockwork ( completely regular ) * * * [ klɒkwɜːk] as regular as clockwork ( completely regular ) (misc.) to work like clockwork ( to work perfectly ) …
33Base (topology) — In mathematics, a base (or basis) B for a topological space X with topology T is a collection of open sets in T such that every open set in T can be written as a union of elements of B. We say that the base generates the topology T. Bases are… …
34Sierpiński space — In mathematics, Sierpiński space (or the connected two point set) is a finite topological space with two points, only one of which is closed.It is the smallest example of a topological space which is neither trivial nor discrete. It is named… …
35Particular point topology — In mathematics, the particular point topology (or included point topology) is a topology where sets are considered open if they are empty or contain a particular, arbitrarily chosen, point of the topological space. Formally, let X be any set and… …
36Periodic variation — In statistics, the periodic variation of a time series is its cyclic variation, either regular or semiregular. See also periodic function. A completely regular cyclic variation in a time series might be dealt with in time series analysis by using …
37Hausdorff space — In topology and related branches of mathematics, a Hausdorff space, separated space or T2 space is a topological space in which distinct points have disjoint neighbourhoods. Of the many separation axioms that can be imposed on a topological space …
38Trivial topology — In topology, a topological space with the trivial topology is one where the only open sets are the empty set and the entire space. Such a space is sometimes called an indiscrete space, and its topology sometimes called an indiscrete topology.… …
39Proximity space — In topology, a proximity space is an axiomatization of notions of nearness that hold set to set, as opposed to the better known point to set notions that characterize topological spaces.The concept was described by Frigyes Riesz in 1908 and… …
40Spectar — Infobox VG title=Spectar publisher=Exidy developer=Exidy release=1980 display=Raster input=4 way joystick, one button designer=Manuel Campos modes=Up to 2 players, alternating arcade system= Exidy 6502 platforms= Arcade, ColecoVision genre= Maze… …
