Abstract
Surfaces, angles, and lines that are called known in magnitude are those of which we are able to find quantities equal to them; [D.2] and those that are called known in ratio are those of which we are able to find magnitudes in their ratio.
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Sidoli, N., Isahaya, Y. (2018). Text and Translation. In: Thābit ibn Qurra’s Restoration of Euclid’s Data. Sources and Studies in the History of Mathematics and Physical Sciences. Springer, Cham. https://doi.org/10.1007/978-3-319-94661-0_2
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DOI: https://doi.org/10.1007/978-3-319-94661-0_2
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