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The first six books of the Elements of Euclid, in which coloured diagrams and symbols are used instead of letters .. (1847)

Euclid, Byrne, Oliver · London, W. Pickering · leaf 63

An illustration from The first six books of the Elements of Euclid, in which coloured diagrams and symbols are used instead of letters .., 1847, leaf 63 — TRAlGHT/mes(mmmm) which are parallel to thefame Jlraight line ( ), are parallel to one another. … interfed: Then, (=)• = ^^ = Mm (pr. 29.), II (pr. 27.) Q. E. D. 32 BOOK I. PROP. XXXI. PROD.

Geometry

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