The closure of all Subsets of \({3, 4,…, 10}\) Which Include \(3\)

H.-D. O.F. Gronau 1, R.C. Mullin2, Ch. Pietsch2
1Universitat Rostock Germany
2Univerity of Waterloo Department of Combinatorics & Optimization

Abstract

We determine the exact closure of all subsets \(K\) of \(\{3,\ldots,10\}\) which contain \(3\).