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Collineation — In projective geometry, a collineation is a one to one and onto map (a bijection) from one projective space to another, or from a projective space to itself, such that the images of collinear points are themselves collinear. All projective linear … Wikipedia
Differences between Norwegian Bokmål and Standard Danish — Danish and Norwegian Bokmål (the most common standard form of written Norwegian) are very similar languages, but differences between them do exist. The languages are mutually intelligible, with the primary differences being in pronunciation and… … Wikipedia
Reforms of French orthography — The orthography of French was already more or less fixed and, from a phonological point of view, outdated when its lexicography developed in the late 17th century and the Académie française was mandated to establish an official prescriptive… … Wikipedia
List of mathematics articles (H) — NOTOC H H cobordism H derivative H index H infinity methods in control theory H relation H space H theorem H tree Haag s theorem Haagerup property Haaland equation Haar measure Haar wavelet Haboush s theorem Hackenbush Hadamard code Hadamard… … Wikipedia

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