 The SSD belongs to a literary genre found in Paris during the first half of the thirteenth century, the Distinctiones sophismatum. It compares with the Tractatus de distinctionibus communibus in sophismatibus accidentibus attributed to Matthew of Orleans, the Distinctiones ‘notandum’, the Abstractiones of Hervaeus Sophista, the tracts on Distinctiones sophismatum as well as ‘anonymous’ treatises described by De Rijk and Braakhuis. Briefly, the distinctiones have the task of listing the rules to be used in the practice of sophisms and setting out the context, while the syncategoremata set out the logical conditions for the proper use of syncategorematic words. (De Libera 1997, 105–106)