| ultrafilter |
In mathematics, especially in order theory, an ultrafilter is a subset of a partially ordered set (a poset) which is maximal among all proper filters. Formally, this states that any filter that properly contains an ultrafilter has to be equal to the whole poset. An important special case of the concept occurs if the considered poset is a Boolean algebra, like in the case of an ultrafilter on a set (defined as a filter of the corresponding powerset). ...
출처: en.wikipedia.org/wiki/Ultrafilter
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| ultra- |
Ultra (sometimes capitalised ULTRA) was the name used by the British for intelligence resulting from decryption of German communications in World War II. The term eventually became the standard designation in both Britain and the United States for all intelligence from high-level cryptanalytic sources. ...
출처: en.wikipedia.org/wiki/Ultra
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| ultra- |
Ultra is Depeche Mode's ninth full-length album, which was released on April 15 1997. The album is the first album after the departure of Alan Wilder, who left to focus on his solo project Recoil. The long time that separates this album from the previous was due to David Gahan's near suicide and recovery from addiction to drugs. These two events caused many to speculate the end of Depeche Mode but this didn't turn out to be the case. ...
출처: en.wikipedia.org/wiki/Ultra_(album)
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| ultra- |
Ultra is a comic book mini-series written by the Luna brothers; Jonathan (art and plot) and Joshua (script). The series was published by Image Comics and was released in eight issues in 2004 and 2005. The series' central character is Pearl Penalosa, who is also a superheroine called Ultra. The story deals only peripherally with traditional superhero comics themes like fighting supervillains and concentrates mainly on how being a superhero affects Pearl's personal life. ...
출처: en.wikipedia.org/wiki/Ultra_(comics)
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| ultra- |
Founded in 1988 as a subsidiary of Konami of America, Ultra Software Corporation was a spinoff company created in an effort to get around Nintendo of America's strict licensing rules. One of these rules was that a third-party company could only publish up to five games per year for the (NES) in the US. This was hardly convenient for Konami, which has begun releasing more than ten games a year for both, the Famicom and Famicom Disk System, in Japan. ...
출처: en.wikipedia.org/wiki/Ultra_(company)
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