field of sets
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Field of sets — Set algebra redirects here. For the basic properties and laws of sets, see Algebra of sets. In mathematics a field of sets is a pair where X is a set and is an algebra over X i.e., a non empty subset of the power set of X closed under the… … Wikipedia
Field — or fields may refer to: * Field (agriculture), an area of land used to cultivate crops for agricultural purposes * Field of study, a branch of knowledge * Playing field, in sports, the area in which the sport is played * Visual field or field of… … Wikipedia
Field archery — involves shooting at targets of varying (and often unmarked) distance, often in woodland and rough terrain. One goal of field archery is to improve the techniques and abilities required for bowhunting in a more realistic outdoor setting. As with… … Wikipedia
Field-tube boiler — Field tube, sectioned A Field tube boiler (also known as a bayonet tube[1] ) is a form of water tube boiler where the water tubes are single ended. The tubes are closed at one end, and they contain a concentric inner tube. Flow is thus separated… … Wikipedia
field sports — plural noun Sports of the field, such as hunting, racing, etc • • • Main Entry: ↑field * * * field sports UK US noun [plural] british activities that involve catching or killing animals, birds, or fish for enjoyment Thesaurus: hunting, shooting… … Useful english dictionary
field structure — field structure, the part of a generator that acts as a magnet and sets up the magnetic lines of force. The coils for the field structure are usually insulated copper wire wound around iron cores … Useful english dictionary
Field-sequential color system — A field sequential color system is a color television system in which the primary color information is transmitted in successive images, and which relies on the human vision system to fuse the successive images into a color picture. One field… … Wikipedia
Field of definition — In mathematics, the field of definition of an algebraic variety V is essentially the smallest field to which the coefficients of the polynomials defining V can belong. Given polynomials, with coefficients in a field K , it may not be obvious… … Wikipedia
Field with one element — In mathematics, the field with one element is a suggestive name for an object that should exist: many objects in math have properties analogous to objects over a field with q elements, where q = 1, and the analogy between number fields and… … Wikipedia
Field (physics) — The magnitude of an electric field surrounding two equally charged (repelling) particles. Brighter areas have a greater magnitude. The direction of the field is not visible … Wikipedia
Field lacrosse — This article is about men s field lacrosse. For women s field lacrosse, see Women s lacrosse . Field lacrosse A lacrosse player advancing, pursued by an opponent Highest governing body Federation of International Lacrosse First played … Wikipedia
