Biography of Gaspar Lax (1487-1560)

Mathematician and philosopher Spanish, born in Sariñena (Huesca) in 1487 and died in Zaragoza in 1560.

He studied at the University of Zaragoza, where he/she attained the degree of master of Arts and doctor of theology. Shortly after, he/she moved to Paris, city in which taught at the Colegio de Calvi, known as "Little Sorbonne", between 1507 and 1508; from there, he/she joined the College de Montaigu, where he/she continued teaching and studying under the guidance of the Scottish John Maior, but finally, in 1517 returned to the College of Calvi.

Luis Vives, who was a pupil of Gaspar Lax in Paris, says that he/she had a sharp wit and a tenacious memory. Very prolific author, Lax published a series of treaties of logical terminista arriving soon known as "Prince of the Parisian sophists". Later, Luis Vives, in the criticism that Parisian philosophers In pseudodialecticos, says having heard his teacher Jean Dullaert Ghent and Gaspar Lax mourn for several years studies have dispelled so futile and hollow. Lax taught in Paris until 1523 and possibly returned to Spain in 1524, almost at the same time as Juan Celaya, perhaps on the occasion of the Royal Decree of expulsion of aliens. In 1525, he/she taught mathematics and philosophy in Zaragoza, city in which he/she lived until his death, becoming Vice-Chancellor and rector of the University. Francisco de Borjawas among his disciples.

Besides the work of logic, Lax published several works of mathematics and physics issues Treaty. The math works include an Arithmetica speculativa published in Paris in 1515. Composed of twelve books, David E. Smith describes it as a treaty "neat Severinus Boethius-based theoretical arithmetic and their medieval successors". The same year published a treatise of Proportiones which summarizes the theory of proportions with appointments to Euclid, Jordanus Nemorarius and Campanus of Novara and a work of propositionibus Arithmeticis. In the Treaty of proportions Lax does not study the problems relating to the speed of the movement according to the tradition of the "calculatores" mertonianos; However, in 1517 published in Zaragoza Calculationes General philosophice, whose title suggests that yes he/she addressed such problems, although this work has not yet been analyzed by anyone.

Bibliography

Sources

Proportiones, (Paris: N. bar, 1515). Speculative Arithmetica. (ID, Id, Id). Of propositionibus Arithmeticis. (Paris: j. bar, 1515). Calculationes General philosophice. (Zaragoza: J. Coci, 1517). Questiones phisicales. (Zaragoza: J. Coci, 1527).Palau Dulcet, A. Manual Hispanic bookseller. (Barcelona-Madrid: J.M. Viader, 1948-1977), (vol. VII, pp. 425-426).

Studies

Latassa, (volume II, p. 119).PICATOSTE RODRÍGUEZ, f. Notes for a 16th-century Spanish scientific library. (Madrid: Tello, 1891), (pp. 166-167).GARCÍA VILLOSALDA, Ricardo. "The University of Paris during the studies of Francisco de Vitoria (1507-1522)", in Analecta Gregoriana, XIV. (Fac series. Hist. Eccl., Sectio B, no. 2, Rome, 1938, pp. (404-407).SOLANA, Marcial. History of Spanish philosophy. (Madrid: 1940), (Vol. III, pp. 19-33).SMITH, David E. Rara arithmetica. (Boston-Londres: 1908), (p. 121),-History of mathematics. (New York: Dover, 1951), (vol. I, p. 345).WALLACE, William A. Lax, Gaspar", in Dictionary of Scientific Biography, (directed by Charles Coulston Gillispie, vol. VIII), (New York: Charles Scribner's Sons, 1973).

Víctor Navarro Brotons