Abstract

Johannes Rudbeckius, one of Sweden’s most influential figures in theology, pedagogy, and church-state relations in the 17th century, published two books on logic: Logica ex optimis et præstantissimis autoribus collecta & conscripta and Controversiæ logices vel potius earum epitome. In this paper, I present and critically discuss Rudbeckius’s view on the nature of logic as it can be reconstructed from these two works. This requires, in particular, identifying the larger intellectual framework within which Rudbeckius operated. The single most important philosopher having affected Rudbeckius’s ideas on logic is Jacopo Zabarella, which leads me to consider at some length the views on logic that Zabarella puts forward in his De Natura Logicæ.