The Journal of Symbolic Logic (JSL) was founded in 1936 and it has become the leading research journal in the field. It is issued quarterly. Volume 71, being published during 2006, will consist of ...

Transactions of the American Mathematical Society, Vol. 245 (Nov., 1978), pp. 89-118 (30 pages) We apply finite operator techniques due to G. C. Rota to a combinatorial identity, which counts a ...