KnowraHasse–Minkowski theoremLinked fromLinked fromThe 2 pages that link to Hasse–Minkowski theorem, each with the reason it gives.All 2Broader topic 2Helmut HasseBroader topic: This is a landmark instance of local solvability determining a global property.Local-global principleBroader topic: It is a fundamental setting where local solvability completely decides global solvability.