In this article I present the unique partial transmission of Euclid's Elements in the medieval Hebrew calendrical treatise Yesod 'Olam (The Foundation of the World), which was composed by Isaac Israeli in 14th‐century Toledo. After a short introduction of Yesod 'Olam, I discuss the role of mathematics, as understood by Israeli, in the study of astronomy and the Jewish calendar. I then provide a mapping of the Elements found in Yesod 'Olam and demonstrate Israeli's peculiar rendition of this seminal Greek work through four examples. Finally, I show that Israeli's transmission of the Elements is lexically independent of earlier known Hebrew versions of the text.

中文翻译：

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中世纪希伯来历法中欧几里得元素的非线性传递

在本文中，我介绍了欧几里得的《元素》在中世纪希伯来历法专着《世界的基础》（Yesod'Olam）中的独特传播，该著作由以撒·以色列在14世纪的托莱多创作。在简短介绍Yesod'Olam之后，我讨论了以色列理解的数学在天文学和犹太历法研究中的作用。然后，我提供了在Yesod'Olam中发现的Elements的映射，并通过四个示例说明了以色列对这一开创性希腊作品的独特诠释。最后，我证明了以色列对“元素”的传播 在词汇上独立于较早的希伯来语版本。