Uppsala, Universitetsbibliotek O Vet 20, Kitāb Ūqlīdīs fī al-Uṣūl, كتاب أوقليديس في الأصول , Isḥāq-Thābit version, completed in Muharram 434, August-September, 1042 fol 3, figure I.1 fol 3v, figure I.2 fol 4v, figure I.5 fol 9v, figure I.22 fol 18v, figure I.47 fol 22, figure II.5 fol 23, figure II.7 fol 24, figure II.8 fol 26, figure II.11 fol 27v, figure II.14 fol 28v, figure III.1 fol 31, figure III.8 fol 39v, figure III.35 fol 40, figure III.36 fol 40v, figure III.37 fol 41, figure IV.1 fol 41v, figure IV.2 fol 42, figure IV.3 fol 42v, figures IV.4 et IV.5 fol 43, figures IV.6 et IV.7 fol 44, figure IV.10 fol 44v, figure IV.11 fol 45v, figure IV.12 fol 46v, figure IV.13 fol 47, figure IV.15 fol 48, figure IV.16 fol 57v, figure VI.1 fol 64v, figure VI.20 fol 64v, figure VI.27 fol 68, figure VI.28 fol 68v, figure VI.29 fol 69v, figure VI.33 fol 167, figure XI.31 fol 172v, figure XI.38 fol 173, figure XI.39 fol 184, figure XIII.1 fol 185, figure XIII.3 fol 187, figure XIII.10 fol 188, figure XIII.11 fol 188v, figure XIII.13 fol 189, figure XIII.15 fol 189v, figure XIII.14 fol 190v, figure XIII.16 fol 191v, figure XIII.17 fol 192v, figure XIII.18 Isḥāq-Thābit version Uppsala University Library Recherche sur les figures des Éléments d'Euclide α ©