Sekanina, Milan Functors and enumeration for ordered sets. (English) Zbl 0568.06001 Contributions to general algebra 3, Proc. Conf., Vienna 1984, 341-353 (1985). [For the entire collection see Zbl 0559.00002.] This paper gives some generalizations of A. Joyal’s functorial enumeration theory [Adv. Math. 42, 1-82 (1981; Zbl 0491.05007)] for ordered sets. Reviewer: J.Cigler MSC: 06A06 Partial orders, general 05A15 Exact enumeration problems, generating functions Keywords:functorial enumeration; ordered sets Citations:Zbl 0559.00002; Zbl 0491.05007 PDFBibTeX XML