Number and relation

Icosahedron

εἰκοσάεδρον

eikosaedron

Eikosaedron is a solid with twenty faces.

From the book

Stobaeus, Volume I

John Stobaeus · Diotimos Editions · 2026

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Orientation

At a Glance

  • The wordEikosaedron is a solid with twenty faces.
  • In StobaeusIn the five-solid scheme, the icosahedron is assigned to water.
  • In this edition“Icosahedron” preserves the exact shape; “twenty-faced solid” supplies an explanatory gloss.
  • A place to beginThe icosahedron appears in the restored assignment of solids to elements.
English renderings
icosahedron; twenty-faced solid

Meaning

Eikosaedron is a solid with twenty faces. The regular form has twenty triangular faces.

Use in the book

In the five-solid scheme, the icosahedron is assigned to water. This places it within a comparison of geometry, elements, and the cosmos. The water assignment is intelligible in the restored text, but the state of the wording matters when it is used as evidence for the precise form of the transmitted scheme.

Places to read

  1. I.21.6c.2The icosahedron appears in the restored assignment of solids to elements.

Translation in this edition

“Icosahedron” preserves the exact shape; “twenty-faced solid” supplies an explanatory gloss.

Source note

Wachsmuth, volume I, printed pp. 186. The name of the solid is preserved, while wording identifying water in this portion of the sentence is supplied editorially. The distinction should remain visible in accounts of the evidence.