“…5 Perhaps the most extensive work on Heidegger and non-classical logic is carried out by Filippo Casati (along with coauthors Naoya Fujikawa, Michael Wheeler, and Priest). Casati argues that Heidegger endorses dialetheism, as evinced in his writings on ineffability, intentionality, mereology, ontology, language, nothingness, and grounding (Casati, 2017a(Casati, , 2017b(Casati, , 2019(Casati, , 2020(Casati, , 2022Casati & Fujikawa, 2015;Casati & Wheeler, 2016;Casati & Priest, 2019). Francesco Gandellini uncovers a dialetheic notion of negation in Heidegger's concepts of ontological difference and Ereignis (Gandellini, 2018).…”