Sophistical Coriscus and his Sophismatic Twin. An edition of the Anonymous Sophisma Coriscus est alter ab homine in Codex Paris, BN n.a.l. 1374, 100vb–102ra

In addition to presenting the first critical edition and comprehensive study of both the content and historical background of a well-known sophisma (and fallacy) – namely, Coriscus est alter ab homine (Coriscus is other than man) – the chapter uses it as a case in point to reassess the broader relationship between medieval fallacies and sophismata. It argues for a much closer synergy and a difference of simple degree rather than essence between the two. In so doing, sophismata and fallacies are replaced within the framework of Latin logic understood as a “logic in reverse” of sorts, that is a logical project grounded in the persuasion that only by testing a rule to its breaking point – by pushing it to its outermost limits and beyond – can one truly gauge its validity, force and universality. The edition of the eponymous sophisma is provided as an appendix of the study proper.