Milan: Pauli Antonii Montani, 1733. First edition, notoriously rare, of this “masterpiece of eighteenth-century geometry” (De Risi, p. 40), “the first treatise on non-Euclidean geometry … this rare and inestimable treasure” (George Bruce Halstead). “Today it is generally recognized by mathematicians as one of the important documents in the history..... More
Item #6374

Milan: Milan: Marc’Antonio Pandolfo Malatesta, 1693. First edition, exceptionally rare, of Saccheri’s first published work on geometry, a precursor to his famous treatise on non-Euclidean geometry, Euclides ab omni naevo vindicatus (1733). “Saccheri proceeded in his youthful work with a ‘severa methodo’, aiming towards the construction of a geometry solidly..... More
Item #6350