Complete permutability of partitions in a set. I

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Complete permutability of partitions in a set. I. (English). Archivum Mathematicum, vol. 25 (1989), issue 1, pp. 95-102

MSC: 03E20, 06F15, 08A02, 08A30 | MR 1189204 | Zbl 0728.08001

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