first category

first category

[′fərst ′kad·ə‚gȯr·ē]
(mathematics)
A set is of first category if it is a countable union of nowhere dense sets.
A set S is of first category at a point x if there is a neighborhood of x whose intersection with S is of first category.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in classic literature ?
The first category, generally speaking, are men conservative in temperament and law-abiding; they live under control and love to be controlled.
"No reason to; but take note that the mistake can only arise in the first category, that is among the ordinary people (as I perhaps unfortunately called them).
It is also the first Category Five storm to make landfall since Andrew in 1992.
He said in the first category, there would be no guarantee required for taking loan as only personal guarantee would be enough.
In the first category, up to five hundred thousand rupees lending facility will be offered to the borrowers and no guarantee will be required for this loan as only personal guarantee would be enough.
The first category, this year titled "The Honor of Status" rewards research in the areas of Prophetic Sunnah and contemporary Islamic Studies around the world.
The first category includes scientific papers published in periodicals, and subject matter of research work should be important and relevant to Oman's water needs.
Penn National Gaming announced that it has filed an application with the Pennsylvania Gaming Control Board for Hollywood Casino York, the company's first Category 4 satellite gaming facility, to be located at the York Galleria Mall in Springettsbury Township, Pennsylvania.
Szymon Wasiak clinched the first category in which the 92-km distance was run in five laps.
The first category emanates from the desire of the police and other law enforcement authorities to bypass the cumbersome criminal justice system when investigating crime and arresting suspects.

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