# Geometriae Pars Universalis

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The *Geometriae Pars Universalis*, published in Padua in 1668, presents a survey of the material Gregory studied while on his Continental trip. It summarizes the techniques of calculus prior to the discoveries of Newton and Leibniz.

Gregory writes:

*Let the reader who has compared this work with others judge what is mine and what belongs to another. *

The book contains the first published proof of the fundamental theorem of the calculus. It may not be an exaggeration to call this the first calculus text.

St Andrews

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