Logica, or Summa Lamberti
ISBN: 9780268086992
Platform/Publisher: Project MUSE / University of Notre Dame Press
Digital rights: Users: Unlimited; Printing: Chapters; Download: Chapters
Subjects: HISTORY / Medieval.; PHILOSOPHY / Logic.;

The thirteenth-century logician Lambert of Auxerre was well known for his Summa Lamberti , or simply Logica, written in the mid-1250s, which became an authoritative textbook on logic in the Western tradition. Our knowledge of medieval logic comes in great part from Lambert's Logica and three other texts: William of Sherwood's Introductiones in logicam , Peter of Spain's Tractatus , and Roger Bacon's Summulae dialectics . Of the four, Lambert's work is the best example of question-summas that proceed principally by asking and answering questions on the subject matter. Thomas S. Maloney's translation of Logica , the only complete translation of this work in any language, is a milestone in the study of medieval logic.

More than simply a translation, Maloney's project is a critical, comprehensive study of Lambert's logic situated in the context of his contemporaries and predecessors. As such, it offers a wealth of annotation and commentary. The lengthy introduction and extensive notes to the text explain the origin, theoretical context, and intricacies of the text and its doctrines. Maloney also addresses the disputed issues of authorship, date, and place of publication of the Summa Lamberti and makes available to the English-only audience the French, German, and Italian secondary sources--all translated--that are needed to enter the discussion.


Thomas S. Maloney is professor of philosophy at the University of Louisville. He is the editor and translator of a number of books, including On Signs by Roger Bacon.

Lambert of Auxerre was a medieval 13th century logician best known for writing the book "Summa Lamberti" or simply "Logica" in the mid 1250s which became an authoritative textbook on logic in the Western tradition. He was a Dominican in the Dominican house at Auxerre. His contemporaries were Peter of Spain, William of Sherwood, and Roger Bacon.

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