An Edition and a critical Commentary of Erhard Weigels Writings on logic, logistics and on the idea of mathesis within the Framework of an already begun complete Edition of his most important works.

• Applicant: Professorin Dr. Anne Eusterschulte, since 11/2017
• Subject Area: History of Philosophy
• Term: from 2017 to 2019
• Project identifier: Deutsche Forschungsgemeinschaft (DFG) - Project number 333256317

I appeal for the funding of a critically commented edition of several small treatises of Erhard Weigel on logic, logistics and the idea of mathesis that shall be collected into an omnibus volume. That volume will appear within the framework of a projected edition of his most important works. The mathematician, astronomer and philosopher from Jena who had been the teacher of Leibniz and Pufendorf had an enormous influence on the philosophical thought of the 17. and 18. century and is looked upon as one of the mentors of a non-classical school-education and of the idea of the academy. Nonetheless his extensive work had not as yet been published in a modern edition. Funded by the Fritz-Thyssen-Stiftung and the DFG the first steps to bring out a critically commented edition were done by the edition of the Universi Corporis Pansophici Caput Summum, the Arithmetische Beschreibung der Moral-Weißheit von Personen und Sachen, the Analysis Aristotelica ex Euclide restituta, the Philosophia Mathematica Theologia Naturalis Solida, the Wienerische Tugend-Spiegel and at present by his treatises on God, Time and existence. That work shall be continued by the edition of his treatises on logic, logistics and the idea of mathesis. In those writings Weigel developes a mathematically-oriented methodology that finds in arithmetics (logistics) and algebra rules of invention of knowledge on anything. It comes along with a tendency to downgrade the traditional logic (syllogistics), but also with efforts to interpret it in a mathematical manner. In addition to it a changed idea of quantity understood as the exact determination of any predicate enables its universal application, and that of its discipline, to any being (Mathesis Universa). The whole is grounded in a doctrine of habitus borrowed from aristotelianism that relates the different fields of logic and logistics in an analogous manner to the tres operationes mentis. The Texts are opened up by a philologic annotation in the footnotes and an explaining annotation at the end of the text; in addition to it indexes will facilitate the orientation. In addition to a general introduction into the omnibus volume special introductions of the single treatises will feature their history, structure and content. The edition will be executed by Dr. Behme who already transliterated and commented the first five volumes of the Weigel-edition.

• DFG Programme: Research Grants
• Ehemaliger Antragsteller: Professor Dr. Wilhelm Schmidt-Biggemann, until 10/2017