🌐EnglishEnglishEspañolFrançaisTürkçeРусский日本語EntityQ3527054· pop 7· linked from 19 articlesDe Bruijn–Erdős theoremtheorem on coloring infinite graphsConnectionsglossary of graph theory termsEntitygraph coloringEntityCategoriesAxiom of choiceGraph coloringInfinite graphsPaul ErdősTheorems in graph theory