We determine the exact closure of all subsets \(K\) of \(\{3,\ldots,10\}\) which contain \(3\).
Citation
H.-D. O.F. Gronau , R.C. Mullin, Ch. Pietsch. The closure of all Subsets of \({3, 4,…, 10}\) Which Include \(3\)[J], Ars Combinatoria, Volume 041. 129-161. DOI: .