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OF THE
M O T I O N
OF
B O D I E S.
Book I.
Section I.
Of the method of firſt and laſt ratio's of quantities, by the help whereof we demonſtrate the propoſitions that follow.
Lemma I.
Quantities, and the ratio's of quantities, which in any finite time converge continually to equality, and before the end of that time approach nearer the one to the
other
