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May 26, 2015 at 6:44 answer added Włodzimierz Holsztyński timeline score: 2
May 20, 2015 at 13:02 vote accept Dominic van der Zypen
May 20, 2015 at 12:53 comment added Ashutosh Yes, See this: renyi.hu/~p_erdos/1959-19.pdf
May 20, 2015 at 12:47 answer added Chris Lambie-Hanson timeline score: 17
May 20, 2015 at 10:19 comment added Damian Sobota For $\chi(G)=\aleph_0$ you can just take an infinite disjoint union of graphs $G_n$ such that $\chi(G_n)=n$ and $\omega(G_n)=2$.
May 20, 2015 at 9:34 history asked Dominic van der Zypen CC BY-SA 3.0