Possible primitive notions for geometry of spine spaces |
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| Authors: | Krzysztof Prażmowski Mariusz Żynel |
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| Affiliation: | Institute of Mathematics, University of Bia?ystok, ul. Akademicka 2, 15-267 Bia?ystok, Poland |
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| Abstract: | New systems of notions specific to the geometry of spine spaces, are introduced. In particular parallelism turns out to be a sufficient primitive notion to express the geometry of a spine space, and we show that structures related to projective closure are definitionally equivalent to spine spaces. |
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