Proposition: Prop. 11.03: Common Section of Two Planes is Straight Line
Euclid's Formulation
If two planes cut one another then their common section is a straight line.
 For let the two planes $AB$ and $BC$ cut one another, and let their common section be the line $DB$.
 I say that the line $DB$ is straight.
Modern Formulation
(not yet contributed)
Table of Contents
Proofs: 1
Mentioned in:
Proofs: 1 2 3
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References
Adapted from (subject to copyright, with kind permission)
 Fitzpatrick, Richard: Euclid's "Elements of Geometry"
Adapted from CC BYSA 3.0 Sources:
 Prime.mover and others: "Pr∞fWiki", https://proofwiki.org/wiki/Main_Page, 2016
Footnotes