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Subject Item
n4:Neumann_theorem
rdf:type
clgo:Theorem_about_quadrilaterals owl:NamedIndividual
rdfs:label
Petr–Douglas–Neumann theorem
owl:sameAs
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prov:wasDerivedFrom
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skos:prefLabel
Petr–Douglas–Neumann theorem
Subject Item
clgr:Bernhard_Neumann
clgo:knownFor
n4:Neumann_theorem