KnowraAlexander horned sphereLinked fromLinked fromThe 6 pages that link to Alexander horned sphere, each with the reason it gives.All 6Broader topic 2Related 1Compared with 33-sphereCompared with: It illustrates how an embedded sphere’s topology can differ from its surrounding space.Arthur Moritz SchoenfliesCompared with: It demonstrates why Schoenflies-style conclusions for tame surfaces do not extend to every embedding.Dehn's lemmaCompared with: It shows that embedding alone can still permit pathological behavior absent from the lemma's disk conclusion.