On Property of Families of Sets
Canadian mathematical bulletin, Tome 18 (1975) no. 1, pp. 133-135

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A family of sets is said to have property if there exists a set B such that B ∩ F ≠ Ø and B ⊅ F for every F ∊ . Such a B will be called suitable with respect to F. It is known (see [3]) that for each positive integer n there exists a family of sets satisfying the following conditions: (a) |F| = n for each F ∊ (b) |F ∩ G| ≤ for F, G ∊ F ≠ G (c) does not have property
Abbott, H. L. On Property of Families of Sets. Canadian mathematical bulletin, Tome 18 (1975) no. 1, pp. 133-135. doi: 10.4153/CMB-1975-024-0
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