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| POSSEDUTO (se manca la collocazione vai al documento contenente) | |
| Autore principale: | Unguru, Sabetai, 1931-
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| Titolo: | A thirteenth century proof of the parallel postulate / by Sabetai Unguru. |
| Abstract: | "Proposition I.14 of Witelo's "Perspectiva" purports to provide a proof of the claim contained in Euclid's fifth postulate. The Latin text of the proposition is presented and translated into English." From the summary |
| In: |  Historia mathematica Vol. 5 (1978), p. 205-210 |
| Discipline: | Geometria--Persone. |
| Persone: | Witelo, ca. 1225-ca. 1300. Euclides, sec. III a.C. |
| Sudd. cronologiche: | Medioevo. |
| 000000163563 |
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