Giovanni Girolamo Saccheri was a Jesuit priest who did pioneering work in the areas of mathematical logic and non-Euclidian geometry. The son of a lawyer, Saccheri was born in San Remo, Genoa (now Italy) on September 5, 1667. He began academic training...

1667-1733 Italian Mathematician In Euclides ab omni naevo vindicatus (1733), Girolamo Saccheri was the first mathematician to suggest the possibilities of non-Euclidean geometry. He did not follow through with his speculations, however, and thus it...

Giovanni Girolamo Saccheri (September 5, 1667 - October 25, 1733) was an Italian Jesuit priest and mathematician. Saccheri entered the Jesuit order in 1685, and was ordained as a priest in 1694. He taught philosophy at Turin from 1694 to 1697, and...