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- W103666813 abstract "In Desarguesian (plane) geometry which takes Hilbert’s axioms of incidence H I, (sharper) axiom of parallels HIV, the axiom of infinity D∞ and Desargues’ axioms D as its basis, one can uniquely determine a Desarguesian number system N, called a geometry-associated Desarguesian number system, as has been exhibited in the previous sections. This number system is actually a skew field (of characteristic 0) and in general it does not satisfy the commutative axiom of multiplication N 13 of the complex number system. In order to let the commutative axiom of multiplication be satisfied, too, so that N becomes a number field, we must introduce other axioms in this geometry. One way, as shown in Hilbert’s “Grundlagen der Geometrie,” is to introduce the so-called Pascalian axiom. What Hilbert called the Pascalian axiom is actually a special case of the theorem commonly named after Pappus. It is also a special case of Pascal’s theorem in usual projective geometry where the conic section degenerates into two lines. To distinguish the axiom considered by Hilbert from the general Pappus’ and Pascal’s theorems, we call it the linear Pascalian axiom, stated as follows." @default.
- W103666813 created "2016-06-24" @default.
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- W103666813 date "1994-01-01" @default.
- W103666813 modified "2023-09-27" @default.
- W103666813 title "Orthogonal geometry, metric geometry and ordinary geometry" @default.
- W103666813 doi "https://doi.org/10.1007/978-3-7091-6639-0_3" @default.
- W103666813 hasPublicationYear "1994" @default.
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