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Re: Notation question
Posted:
May 30, 2013 10:59 AM


On 30/05/2013 15:41, Peter Percival wrote: > Elsewhere I was asked if there is notation for "the subsets of X of > cardinality k". I suggested [X]^k, which I have surely seen somewhere, > but I can't remember where. What authoritative works can I cite? >
Bollobas's lovely little book "Combinatorics" (CUP 1986) uses X^{(k)} (in TeX notation).



