Let \(X\) be a topological space. Subsets \(A,B\subseteq X\) are almost disjoint if their interiors are disjoint: \(A^\circ \cap B^\circ = \emptyset\).
When are two sets almost disjoint?
Almost disjoint sets
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Let \(X\) be a topological space. Subsets \(A,B\subseteq X\) are almost disjoint if their interiors are disjoint: \(A^\circ \cap B^\circ = \emptyset\).