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p-System


A p-system of a set S is a sequence of subsets A_1, A_2, ..., A_p of S, among which some may be empty or coinciding with each other.


See also

Inclusion-Exclusion Principle, k-Subset, Subset

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References

Comtet, L. Advanced Combinatorics: The Art of Finite and Infinite Expansions, rev. enl. ed. Dordrecht, Netherlands: Reidel, pp. 176-177, 1974.

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p-System

Cite this as:

Weisstein, Eric W. "p-System." From MathWorld--A Wolfram Web Resource. https://mathworld.wolfram.com/p-System.html

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