KnowraModal logicLinked fromLinked fromThe 20 pages that link to Modal logic, each with the reason it gives.All 20Broader topic 4Related 4Narrower topic 4Compared with 8Alvin PlantingaRelated: Plantinga uses possible-world semantics to formulate arguments about God and necessary existence.Medieval logicRelated: Medieval logicians refined modal syllogisms and debated how modal terms affect inference.Duns ScotusRelated: Scotus’s argument relies on reasoning about what can exist and what must exist.Löb's theoremRelated: Its provability interpretation recasts Löb’s theorem as a modal principle.