A3 Book section, Chapters in research books
The Trinity and Positio Impossibilis : Some Remarks on Inconsistence (2000)

Yrjönsuuri, M. (2000). The Trinity and Positio Impossibilis : Some Remarks on Inconsistence. In G. Holmström-Hintikka (Ed.), Medieval Philosophy and Modern Times (pp. 59-68). Kluwer. Synthese Library, 288. https://doi.org/10.1007/978-94-011-4227-4_5

JYU authors or editors

Publication details

All authors or editors: Yrjönsuuri, Mikko

Parent publication: Medieval Philosophy and Modern Times

Parent publication editors: Holmström-Hintikka, G.

ISBN: 978-0-7923-6102-2

eISBN: 978-94-011-4227-4

Journal or series: Synthese Library

Publication year: 2000

Number in series: 288

Pages range: 59-68

Publisher: Kluwer

Place of Publication: Dordrecht

Publication country: Netherlands

Publication language: English

DOI: https://doi.org/10.1007/978-94-011-4227-4_5

Publication open access: Not open

Publication channel open access: 

Abstract

According to the terminology of the middle ages, an obligational disputation in the species of positio impossibilis is a disputation where the respondent is given the duty to defend an impossible sentence, called the positum. First and foremost, he must grant this sentence if it is put forward during the disputation. Further, he must grant whatever follows from this impossible assumption and deny whatever is repugnant to it, if such sentences are put forward to him during the disputation. However, he must avoid both granting and denying the same sentence, since that would amount to a straightforward contradiction.

Free keywords: inferential relation; anonymous author; medieval philosophy; conceptual containment; syllogistical inference

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