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- Archimedes' dissection of a parabolic segment into infinitely many triangles (en)
- Elements of Geometry, Book IX, Proposition 35. "If there is any multitude whatsoever of continually proportional numbers, and equal to the first is subtracted from the second and the last, then as the excess of the second to the first, so the excess of the last will be to all those before it." (en)
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