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 Nov 20 awarded Famous Question Sep 30 awarded Notable Question Aug 18 awarded Yearling Jan 28 awarded Favorite Question Apr 9 awarded Popular Question Oct 14 awarded Notable Question Jun 20 awarded Yearling Jan 29 asked If a graph G has chromatic number 3, then G contains a subgraph isomorphic to $K_3$? Jan 18 accepted How to define a bijection between $(0,1)$ and $(0,1]$? Dec 2 awarded Scholar Dec 2 accepted Prove/Show that a number is square if and only if its prime decomposition contains only even exponents. Dec 2 accepted How many 4 worded sentences can a list of 5 words make if two of them must be in that sentence? Oct 26 awarded Good Question Oct 10 awarded Popular Question Aug 13 revised How many 4 worded sentences can a list of 5 words make if two of them must be in that sentence? added 294 characters in body Aug 1 comment How many 4 worded sentences can a list of 5 words make if two of them must be in that sentence? Repeating "new" and "this" is allowed though. The only problem I currently see with this is that if I get "new this new this" I am counting it twice? or am I missing something? Aug 1 asked How many 4 worded sentences can a list of 5 words make if two of them must be in that sentence? Jul 6 awarded Supporter Jul 5 asked Prove/Show that a number is square if and only if its prime decomposition contains only even exponents. Jun 20 awarded Nice Question