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join of sets

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  • Join (mathematics) — In mathematical order theory, join is a binary operation on a partially ordered set that gives the supremum (least upper bound) of its arguments, provided the least upper bound exists. The join of elements x and y is denoted x lor y. A partially… …   Wikipedia

  • Join and meet — In mathematics, join and meet are dual binary operations on the elements of a partially ordered set. A join on a set is defined as the (necessarily unique) supremum (least upper bound) with respect to a partial order on the set, provided a… …   Wikipedia

  • Union-closed sets conjecture — In combinatorial mathematics, the union closed sets conjecture is an elementary problem, posed by Péter Frankl in 1979 and still open as of 2008. A family of sets is said to be union closed if the union of any two sets from the family remains in… …   Wikipedia

  • 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

  • Sort-merge join — The Sort Merge Join (also known as Merge Join) is an example of a join algorithm and is used in the implementation of a relational database management system. The basic problem of a join algorithm is to find, for each distinct value of the join… …   Wikipedia

  • Boy Sets Fire — boysetsfire Nathan Gray von Boysetsfire Gründung 1994 Auflösung 2007 Genre Post Hardcore Website …   Deutsch Wikipedia

  • Boy sets fire — boysetsfire Nathan Gray von Boysetsfire Gründung 1994 Auflösung 2007 Genre Post Hardcore Website …   Deutsch Wikipedia

  • Maze generation algorithm — Maze generation algorithms are automated methods for the creation of mazes. This maze generated by modified version of Prim s algorithm, below. Contents 1 Graph theory based methods …   Wikipedia

  • Record linkage — (RL) refers to the task of finding entries that refer to the same entity across different data sources (e.g., files, books, websites, databases, etc.). Record linkage is an appropriate technique when you have to join data sets that do not already …   Wikipedia

  • YAWL — (Yet Another Workflow Language) is a workflow language based on the Workflow patterns. The language is supported by a software system that includes an execution engine, a graphical editor and a worklist handler. The system is available as an Open …   Wikipedia

  • Rahman (actor) — Infobox actor name = Rahman caption = Rahman birthname = Rashin Rahman location = flagicon|IND Abu Dhabi, UAE. birthdate = birth date and age|1967|5|23 yearsactive = 1983 Present height = 6 feet 0 inche spouse = Mehrunisa Children Rushda, Alisha… …   Wikipedia

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