Definition: Def. 11.02: Surface of a Solid Figure
The extremity of a solid (is) a surface.
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Proofs: 2 3 4
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Adapted from (subject to copyright, with kind permission)
- Fitzpatrick, Richard: Euclid's "Elements of Geometry"
Adapted from CC BY-SA 3.0 Sources:
- Prime.mover and others: "Pr∞fWiki", https://proofwiki.org/wiki/Main_Page, 2016