 Despite Leibniz opposing Sturm’s metaphysics and natural philosophy, he was appreciative of and influenced by Sturm’s (and Weigel’s) developments in logic (Lemanski 2018). Furthermore, Leibniz’s major disciple in Germany, Christian Wolff, was very much fond of Sturm himself. So much so that it was Wolff who supported the publication of the pars specialis of Sturm’s PE and provided a preface to it. Wolff was probably familiar with Sturm due to Wolff’s former teacher, Georg Albrecht Hamberger, who in turn had studied with Sturm (Gaab, in Gaab et al. 2004: 48f).